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-              r78c3045
+              re66fd66
 // dear imgui, v1.61 WIP
+// dear imgui, v1.79
 // (drawing and font code)
+// Contains implementation for
+// - Default styles
+// - ImDrawList
+// - ImDrawData
+// - ImFontAtlas
+// - ImFont
+// - Default font data
+/*
+Index of this file:
+// [SECTION] STB libraries implementation
+// [SECTION] Style functions
+// [SECTION] ImDrawList
+// [SECTION] ImDrawListSplitter
+// [SECTION] ImDrawData
+// [SECTION] Helpers ShadeVertsXXX functions
+// [SECTION] ImFontConfig
+// [SECTION] ImFontAtlas
+// [SECTION] ImFontAtlas glyph ranges helpers
+// [SECTION] ImFontGlyphRangesBuilder
+// [SECTION] ImFont
+// [SECTION] ImGui Internal Render Helpers
+// [SECTION] Decompression code
+// [SECTION] Default font data (ProggyClean.ttf)
+*/
 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
 …
 #include "imgui.h"
+#ifndef IMGUI_DISABLE
+#ifndef IMGUI_DEFINE_MATH_OPERATORS
 #define IMGUI_DEFINE_MATH_OPERATORS
+#endif
 #include "imgui_internal.h"
 #include <stdio.h>      // vsnprintf, sscanf, printf
 #if !defined(alloca)
+#ifdef _WIN32
+#if defined(__GLIBC__) || defined(__sun) || defined(__APPLE__) || defined(__NEWLIB__)
+#include <alloca.h>     // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
+#elif defined(_WIN32)
 #include <malloc.h>     // alloca
 #if !defined(alloca)
 #define alloca _alloca  // for clang with MS Codegen
 #endif
-#elif defined(__GLIBC__) || defined(__sun)
-#include <alloca.h>     // alloca
 #else
 #include <stdlib.h>     // alloca
 …
 #endif
+// Visual Studio warnings
 #ifdef _MSC_VER
+#pragma warning (disable: 4127) // condition expression is constant
 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
 #endif
+#ifdef __clang__
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning : use of old-style cast                              // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wfloat-equal"            // warning : comparing floating point with == or != is unsafe   // storing and comparing against same constants ok.
+#pragma clang diagnostic ignored "-Wglobal-constructors"    // warning : declaration requires a global destructor           // similar to above, not sure what the exact difference it.
+#pragma clang diagnostic ignored "-Wsign-conversion"        // warning : implicit conversion changes signedness             //
+#if __has_warning("-Wcomma")
+#pragma clang diagnostic ignored "-Wcomma"                  // warning : possible misuse of comma operator here             //
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#if __has_warning("-Wunknown-warning-option")
+#pragma clang diagnostic ignored "-Wunknown-warning-option"         // warning: unknown warning group 'xxx'                      // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
 #endif
+#if __has_warning("-Wreserved-id-macro")
+#pragma clang diagnostic ignored "-Wreserved-id-macro"      // warning : macro name is a reserved identifier                //
+#endif
+#if __has_warning("-Wdouble-promotion")
+#pragma clang diagnostic ignored "-Wdouble-promotion"       // warning: implicit conversion from 'float' to 'double' when passing argument to function
+#endif
+#pragma clang diagnostic ignored "-Wunknown-pragmas"                // warning: unknown warning group 'xxx'
+#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast                            // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wfloat-equal"                    // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
+#pragma clang diagnostic ignored "-Wglobal-constructors"            // warning: declaration requires a global destructor         // similar to above, not sure what the exact difference is.
+#pragma clang diagnostic ignored "-Wsign-conversion"                // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"  // warning: zero as null pointer constant                    // some standard header variations use #define NULL 0
+#pragma clang diagnostic ignored "-Wcomma"                          // warning: possible misuse of comma operator here
+#pragma clang diagnostic ignored "-Wreserved-id-macro"              // warning: macro name is a reserved identifier
+#pragma clang diagnostic ignored "-Wdouble-promotion"               // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
+#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
 #elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
 #pragma GCC diagnostic ignored "-Wunused-function"          // warning: 'xxxx' defined but not used
 #pragma GCC diagnostic ignored "-Wdouble-promotion"         // warning: implicit conversion from 'float' to 'double' when passing argument to function
 #pragma GCC diagnostic ignored "-Wconversion"               // warning: conversion to 'xxxx' from 'xxxx' may alter its value
+#pragma GCC diagnostic ignored "-Wstack-protector"          // warning: stack protector not protecting local variables: variable length buffer
+#pragma GCC diagnostic ignored "-Wclass-memaccess"          // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
 #endif
 //-------------------------------------------------------------------------
 // STB libraries implementation
+// [SECTION] STB libraries implementation
 //-------------------------------------------------------------------------
 // Compile time options:
 //#define IMGUI_STB_NAMESPACE           ImGuiStb
+//#define IMGUI_STB_NAMESPACE           ImStb
 //#define IMGUI_STB_TRUETYPE_FILENAME   "my_folder/stb_truetype.h"
 //#define IMGUI_STB_RECT_PACK_FILENAME  "my_folder/stb_rect_pack.h"
 …
 #endif
 #ifdef __clang__
+#if defined(__clang__)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wunused-function"
 #pragma clang diagnostic ignored "-Wmissing-prototypes"
 #pragma clang diagnostic ignored "-Wimplicit-fallthrough"
 #pragma clang diagnostic ignored "-Wcast-qual"              // warning : cast from 'const xxxx *' to 'xxx *' drops const qualifier //
+#pragma clang diagnostic ignored "-Wcast-qual"              // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
 #endif
 #ifdef __GNUC__
+#if defined(__GNUC__)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wtype-limits"              // warning: comparison is always true due to limited range of data type [-Wtype-limits]
 …
 #endif
+#ifndef STB_RECT_PACK_IMPLEMENTATION                        // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
 #define STBRP_STATIC
+#define STBRP_ASSERT(x)    IM_ASSERT(x)
+#define STBRP_ASSERT(x)     do { IM_ASSERT(x); } while (0)
+#define STBRP_SORT          ImQsort
 #define STB_RECT_PACK_IMPLEMENTATION
 #endif
 …
 #include IMGUI_STB_RECT_PACK_FILENAME
 #else
 #include "stb_rect_pack.h"
+#include "imstb_rectpack.h"
 #endif
+#endif
+#ifndef STB_TRUETYPE_IMPLEMENTATION                         // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
+#define STBTT_malloc(x,u)  ((void)(u), ImGui::MemAlloc(x))
+#define STBTT_free(x,u)    ((void)(u), ImGui::MemFree(x))
+#define STBTT_assert(x)    IM_ASSERT(x)
+#define STBTT_malloc(x,u)   ((void)(u), IM_ALLOC(x))
+#define STBTT_free(x,u)     ((void)(u), IM_FREE(x))
+#define STBTT_assert(x)     do { IM_ASSERT(x); } while(0)
+#define STBTT_fmod(x,y)     ImFmod(x,y)
+#define STBTT_sqrt(x)       ImSqrt(x)
+#define STBTT_pow(x,y)      ImPow(x,y)
+#define STBTT_fabs(x)       ImFabs(x)
+#define STBTT_ifloor(x)     ((int)ImFloorStd(x))
+#define STBTT_iceil(x)      ((int)ImCeil(x))
 #define STBTT_STATIC
 #define STB_TRUETYPE_IMPLEMENTATION
 …
 #include IMGUI_STB_TRUETYPE_FILENAME
 #else
 #include "stb_truetype.h"
+#include "imstb_truetype.h"
 #endif
+#ifdef __GNUC__
+#endif
+#if defined(__GNUC__)
 #pragma GCC diagnostic pop
 #endif
 #ifdef __clang__
+#if defined(__clang__)
 #pragma clang diagnostic pop
 #endif
 #ifdef _MSC_VER
+#if defined(_MSC_VER)
 #pragma warning (pop)
 #endif
 #ifdef IMGUI_STB_NAMESPACE
 } // namespace ImGuiStb
+} // namespace ImStb
 using namespace IMGUI_STB_NAMESPACE;
 #endif
 //-----------------------------------------------------------------------------
 // Style functions
+// [SECTION] Style functions
 //-----------------------------------------------------------------------------
 void ImGui::StyleColorsDark(ImGuiStyle* dst)
+{
+   ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+   ImVec4* colors = style->Colors;
+   colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+   colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
+   colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
+   colors[ImGuiCol_ChildBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.00f);
+   colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
+   colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
+   colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+   colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
+   colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+   colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+   colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
+   colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
+   colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
+   colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
+   colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
+   colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
+   colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
+   colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
+   colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+   colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
+   colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+   colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+   colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+   colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
+   colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
+   colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+   colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+   colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
+   colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
+   colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
+   colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
+   colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+   colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+   colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
+   colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
+   colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+   colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
+   colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
+   colors[ImGuiCol_ModalWindowDarkening] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
+   colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+   colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+   colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
+    ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+    ImVec4* colors = style->Colors;
+    colors[ImGuiCol_Text]                   = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    colors[ImGuiCol_TextDisabled]           = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
+    colors[ImGuiCol_WindowBg]               = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
+    colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_FrameBg]                = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
+    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_TitleBg]                = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
+    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
+    colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
+    colors[ImGuiCol_MenuBarBg]              = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
+    colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
+    colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
+    colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
+    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
+    colors[ImGuiCol_CheckMark]              = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_SliderGrab]             = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
+    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_Button]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_ButtonActive]           = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
+    colors[ImGuiCol_Header]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
+    colors[ImGuiCol_HeaderHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+    colors[ImGuiCol_HeaderActive]           = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_Separator]              = colors[ImGuiCol_Border];
+    colors[ImGuiCol_SeparatorHovered]       = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
+    colors[ImGuiCol_SeparatorActive]        = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
+    colors[ImGuiCol_ResizeGrip]             = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
+    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_ResizeGripActive]       = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+    colors[ImGuiCol_Tab]                    = ImLerp(colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.80f);
+    colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_TabActive]              = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
+    colors[ImGuiCol_TabUnfocused]           = ImLerp(colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f);
+    colors[ImGuiCol_TabUnfocusedActive]     = ImLerp(colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f);
+    colors[ImGuiCol_PlotLines]              = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
+    colors[ImGuiCol_PlotLinesHovered]       = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
+    colors[ImGuiCol_PlotHistogram]          = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogramHovered]   = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
+    colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
+    colors[ImGuiCol_DragDropTarget]         = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+    colors[ImGuiCol_NavHighlight]           = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
+    colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
+    colors[ImGuiCol_ModalWindowDimBg]       = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
+}
 void ImGui::StyleColorsClassic(ImGuiStyle* dst)
+{
+   ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+   ImVec4* colors = style->Colors;
+   colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
+   colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
+   colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
+   colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+   colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
+   colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
+   colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+   colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
+   colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
+   colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
+   colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
+   colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
+   colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
+   colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
+   colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
+   colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
+   colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
+   colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
+   colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
+   colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
+   colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
+   colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
+   colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
+   colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
+   colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
+   colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
+   colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
+   colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
+   colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
+   colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
+   colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
+   colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
+   colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
+   colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+   colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+   colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+   colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
+   colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
+   colors[ImGuiCol_ModalWindowDarkening] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
+   colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+   colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
+   colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
+    ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+    ImVec4* colors = style->Colors;
+    colors[ImGuiCol_Text]                   = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
+    colors[ImGuiCol_TextDisabled]           = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
+    colors[ImGuiCol_WindowBg]               = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
+    colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_FrameBg]                = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
+    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
+    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
+    colors[ImGuiCol_TitleBg]                = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
+    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
+    colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
+    colors[ImGuiCol_MenuBarBg]              = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
+    colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
+    colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
+    colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
+    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
+    colors[ImGuiCol_CheckMark]              = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
+    colors[ImGuiCol_SliderGrab]             = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
+    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
+    colors[ImGuiCol_Button]                 = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
+    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
+    colors[ImGuiCol_ButtonActive]           = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
+    colors[ImGuiCol_Header]                 = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
+    colors[ImGuiCol_HeaderHovered]          = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
+    colors[ImGuiCol_HeaderActive]           = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
+    colors[ImGuiCol_Separator]              = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
+    colors[ImGuiCol_SeparatorHovered]       = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
+    colors[ImGuiCol_SeparatorActive]        = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
+    colors[ImGuiCol_ResizeGrip]             = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
+    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
+    colors[ImGuiCol_ResizeGripActive]       = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
+    colors[ImGuiCol_Tab]                    = ImLerp(colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.80f);
+    colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_TabActive]              = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
+    colors[ImGuiCol_TabUnfocused]           = ImLerp(colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f);
+    colors[ImGuiCol_TabUnfocusedActive]     = ImLerp(colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f);
+    colors[ImGuiCol_PlotLines]              = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    colors[ImGuiCol_PlotLinesHovered]       = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogram]          = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogramHovered]   = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
+    colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
+    colors[ImGuiCol_DragDropTarget]         = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+    colors[ImGuiCol_NavHighlight]           = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
+    colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
+    colors[ImGuiCol_ModalWindowDimBg]       = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
+}
 …
 void ImGui::StyleColorsLight(ImGuiStyle* dst)
+{
+   ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+   ImVec4* colors = style->Colors;
+   colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
+   colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
+   colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
+   colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+   colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
+   colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
+   colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+   colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+   colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+   colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+   colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
+   colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
+   colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
+   colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
+   colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
+   colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
+   colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
+   colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
+   colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+   colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
+   colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
+   colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+   colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+   colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
+   colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
+   colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+   colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+   colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
+   colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
+   colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
+   colors[ImGuiCol_ResizeGrip] = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
+   colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+   colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+   colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
+   colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
+   colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+   colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
+   colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
+   colors[ImGuiCol_ModalWindowDarkening] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
+   colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+   colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
+   colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
+    ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+    ImVec4* colors = style->Colors;
+    colors[ImGuiCol_Text]                   = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
+    colors[ImGuiCol_TextDisabled]           = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
+    colors[ImGuiCol_WindowBg]               = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
+    colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_FrameBg]                = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_TitleBg]                = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
+    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
+    colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
+    colors[ImGuiCol_MenuBarBg]              = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
+    colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
+    colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
+    colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
+    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
+    colors[ImGuiCol_CheckMark]              = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_SliderGrab]             = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
+    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
+    colors[ImGuiCol_Button]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_ButtonActive]           = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
+    colors[ImGuiCol_Header]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
+    colors[ImGuiCol_HeaderHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+    colors[ImGuiCol_HeaderActive]           = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_Separator]              = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
+    colors[ImGuiCol_SeparatorHovered]       = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
+    colors[ImGuiCol_SeparatorActive]        = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
+    colors[ImGuiCol_ResizeGrip]             = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
+    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_ResizeGripActive]       = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+    colors[ImGuiCol_Tab]                    = ImLerp(colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.90f);
+    colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_TabActive]              = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
+    colors[ImGuiCol_TabUnfocused]           = ImLerp(colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f);
+    colors[ImGuiCol_TabUnfocusedActive]     = ImLerp(colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f);
+    colors[ImGuiCol_PlotLines]              = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
+    colors[ImGuiCol_PlotLinesHovered]       = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
+    colors[ImGuiCol_PlotHistogram]          = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogramHovered]   = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
+    colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
+    colors[ImGuiCol_DragDropTarget]         = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+    colors[ImGuiCol_NavHighlight]           = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
+    colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
+    colors[ImGuiCol_ModalWindowDimBg]       = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
+}
 //-----------------------------------------------------------------------------
 // ImDrawListData
+// [SECTION] ImDrawList
 //-----------------------------------------------------------------------------
 ImDrawListSharedData::ImDrawListSharedData()
+{
+   Font = NULL;
+   FontSize = 0.0f;
+   CurveTessellationTol = 0.0f;
+   ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
+   // Const data
+   for (int i = 0; i < IM_ARRAYSIZE(CircleVtx12); i++)
+   {
+      const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(CircleVtx12);
+      CircleVtx12[i] = ImVec2(cosf(a), sinf(a));
+   }
+}
+//-----------------------------------------------------------------------------
+// ImDrawList
+//-----------------------------------------------------------------------------
+void ImDrawList::Clear()
+{
+   CmdBuffer.resize(0);
+   IdxBuffer.resize(0);
+   VtxBuffer.resize(0);
+   Flags = ImDrawListFlags_AntiAliasedLines | ImDrawListFlags_AntiAliasedFill;
+   _VtxCurrentIdx = 0;
+   _VtxWritePtr = NULL;
+   _IdxWritePtr = NULL;
+   _ClipRectStack.resize(0);
+   _TextureIdStack.resize(0);
+   _Path.resize(0);
+   _ChannelsCurrent = 0;
+   _ChannelsCount = 1;
+   // NB: Do not clear channels so our allocations are re-used after the first frame.
+}
+void ImDrawList::ClearFreeMemory()
+{
+   CmdBuffer.clear();
+   IdxBuffer.clear();
+   VtxBuffer.clear();
+   _VtxCurrentIdx = 0;
+   _VtxWritePtr = NULL;
+   _IdxWritePtr = NULL;
+   _ClipRectStack.clear();
+   _TextureIdStack.clear();
+   _Path.clear();
+   _ChannelsCurrent = 0;
+   _ChannelsCount = 1;
+   for (int i = 0; i < _Channels.Size; i++)
+   {
+      if (i == 0) memset(&_Channels[0], 0, sizeof(_Channels[0]));  // channel 0 is a copy of CmdBuffer/IdxBuffer, don't destruct again
+      _Channels[i].CmdBuffer.clear();
+      _Channels[i].IdxBuffer.clear();
+   }
+   _Channels.clear();
+    Font = NULL;
+    FontSize = 0.0f;
+    CurveTessellationTol = 0.0f;
+    CircleSegmentMaxError = 0.0f;
+    ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
+    InitialFlags = ImDrawListFlags_None;
+    // Lookup tables
+    for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
+    {
+        const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
+        ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
+    }
+    memset(CircleSegmentCounts, 0, sizeof(CircleSegmentCounts)); // This will be set by SetCircleSegmentMaxError()
+    TexUvLines = NULL;
+}
+void ImDrawListSharedData::SetCircleSegmentMaxError(float max_error)
+{
+    if (CircleSegmentMaxError == max_error)
+        return;
+    CircleSegmentMaxError = max_error;
+    for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
+    {
+        const float radius = i + 1.0f;
+        const int segment_count = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError);
+        CircleSegmentCounts[i] = (ImU8)ImMin(segment_count, 255);
+    }
+}
+// Initialize before use in a new frame. We always have a command ready in the buffer.
+void ImDrawList::_ResetForNewFrame()
+{
+    // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
+    // (those should be IM_STATIC_ASSERT() in theory but with our pre C++11 setup the whole check doesn't compile with GCC)
+    IM_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
+    IM_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
+    IM_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
+    CmdBuffer.resize(0);
+    IdxBuffer.resize(0);
+    VtxBuffer.resize(0);
+    Flags = _Data->InitialFlags;
+    memset(&_CmdHeader, 0, sizeof(_CmdHeader));
+    _VtxCurrentIdx = 0;
+    _VtxWritePtr = NULL;
+    _IdxWritePtr = NULL;
+    _ClipRectStack.resize(0);
+    _TextureIdStack.resize(0);
+    _Path.resize(0);
+    _Splitter.Clear();
+    CmdBuffer.push_back(ImDrawCmd());
+}
+void ImDrawList::_ClearFreeMemory()
+{
+    CmdBuffer.clear();
+    IdxBuffer.clear();
+    VtxBuffer.clear();
+    Flags = ImDrawListFlags_None;
+    _VtxCurrentIdx = 0;
+    _VtxWritePtr = NULL;
+    _IdxWritePtr = NULL;
+    _ClipRectStack.clear();
+    _TextureIdStack.clear();
+    _Path.clear();
+    _Splitter.ClearFreeMemory();
+}
 ImDrawList* ImDrawList::CloneOutput() const
+{
+   ImDrawList* dst = IM_NEW(ImDrawList(NULL));
+   dst->CmdBuffer = CmdBuffer;
+   dst->IdxBuffer = IdxBuffer;
+   dst->VtxBuffer = VtxBuffer;
+   dst->Flags = Flags;
+   return dst;
+}
+// Using macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug builds
+#define GetCurrentClipRect()    (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1]  : _Data->ClipRectFullscreen)
+#define GetCurrentTextureId()   (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : NULL)
+    ImDrawList* dst = IM_NEW(ImDrawList(_Data));
+    dst->CmdBuffer = CmdBuffer;
+    dst->IdxBuffer = IdxBuffer;
+    dst->VtxBuffer = VtxBuffer;
+    dst->Flags = Flags;
+    return dst;
+}
 void ImDrawList::AddDrawCmd()
+{
+   ImDrawCmd draw_cmd;
+   draw_cmd.ClipRect = GetCurrentClipRect();
+   draw_cmd.TextureId = GetCurrentTextureId();
+   IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
+   CmdBuffer.push_back(draw_cmd);
+    ImDrawCmd draw_cmd;
+    draw_cmd.ClipRect = _CmdHeader.ClipRect;    // Same as calling ImDrawCmd_HeaderCopy()
+    draw_cmd.TextureId = _CmdHeader.TextureId;
+    draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
+    draw_cmd.IdxOffset = IdxBuffer.Size;
+    IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
+    CmdBuffer.push_back(draw_cmd);
+}
+// Pop trailing draw command (used before merging or presenting to user)
+// Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL
+void ImDrawList::_PopUnusedDrawCmd()
+{
+    if (CmdBuffer.Size == 0)
+        return;
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount == 0 && curr_cmd->UserCallback == NULL)
+        CmdBuffer.pop_back();
+}
 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
+{
+   ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
+   if (!current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL)
+   {
+      AddDrawCmd();
+      current_cmd = &CmdBuffer.back();
+   }
+   current_cmd->UserCallback = callback;
+   current_cmd->UserCallbackData = callback_data;
+   AddDrawCmd(); // Force a new command after us (see comment below)
+}
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    IM_ASSERT(curr_cmd->UserCallback == NULL);
+    if (curr_cmd->ElemCount != 0)
+    {
+        AddDrawCmd();
+        curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    }
+    curr_cmd->UserCallback = callback;
+    curr_cmd->UserCallbackData = callback_data;
+    AddDrawCmd(); // Force a new command after us (see comment below)
+}
+// Compare ClipRect, TextureId and VtxOffset with a single memcmp()
+#define ImDrawCmd_HeaderSize                        (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
+#define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS)   (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize))    // Compare ClipRect, TextureId, VtxOffset
+#define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC)      (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize))    // Copy ClipRect, TextureId, VtxOffset
 // Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack.
 // The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
+void ImDrawList::UpdateClipRect()
+{
+   // If current command is used with different settings we need to add a new command
+   const ImVec4 curr_clip_rect = GetCurrentClipRect();
+   ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size - 1] : NULL;
+   if (!curr_cmd || (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) != 0) || curr_cmd->UserCallback != NULL)
+   {
+      AddDrawCmd();
+      return;
+   }
+   // Try to merge with previous command if it matches, else use current command
+   ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
+   if (curr_cmd->ElemCount == 0 && prev_cmd && memcmp(&prev_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) == 0 && prev_cmd->TextureId == GetCurrentTextureId() && prev_cmd->UserCallback == NULL)
+      CmdBuffer.pop_back();
+   else
+      curr_cmd->ClipRect = curr_clip_rect;
+}
+void ImDrawList::UpdateTextureID()
+{
+   // If current command is used with different settings we need to add a new command
+   const ImTextureID curr_texture_id = GetCurrentTextureId();
+   ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
+   if (!curr_cmd || (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id) || curr_cmd->UserCallback != NULL)
+   {
+      AddDrawCmd();
+      return;
+   }
+   // Try to merge with previous command if it matches, else use current command
+   ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
+   if (curr_cmd->ElemCount == 0 && prev_cmd && prev_cmd->TextureId == curr_texture_id && memcmp(&prev_cmd->ClipRect, &GetCurrentClipRect(), sizeof(ImVec4)) == 0 && prev_cmd->UserCallback == NULL)
+      CmdBuffer.pop_back();
+   else
+      curr_cmd->TextureId = curr_texture_id;
+}
+#undef GetCurrentClipRect
+#undef GetCurrentTextureId
+void ImDrawList::_OnChangedClipRect()
+{
+    // If current command is used with different settings we need to add a new command
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
+    {
+        AddDrawCmd();
+        return;
+    }
+    IM_ASSERT(curr_cmd->UserCallback == NULL);
+    // Try to merge with previous command if it matches, else use current command
+    ImDrawCmd* prev_cmd = curr_cmd - 1;
+    if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
+    {
+        CmdBuffer.pop_back();
+        return;
+    }
+    curr_cmd->ClipRect = _CmdHeader.ClipRect;
+}
+void ImDrawList::_OnChangedTextureID()
+{
+    // If current command is used with different settings we need to add a new command
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
+    {
+        AddDrawCmd();
+        return;
+    }
+    IM_ASSERT(curr_cmd->UserCallback == NULL);
+    // Try to merge with previous command if it matches, else use current command
+    ImDrawCmd* prev_cmd = curr_cmd - 1;
+    if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
+    {
+        CmdBuffer.pop_back();
+        return;
+    }
+    curr_cmd->TextureId = _CmdHeader.TextureId;
+}
+void ImDrawList::_OnChangedVtxOffset()
+{
+    // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
+    _VtxCurrentIdx = 0;
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
+    if (curr_cmd->ElemCount != 0)
+    {
+        AddDrawCmd();
+        return;
+    }
+    IM_ASSERT(curr_cmd->UserCallback == NULL);
+    curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
+}
 // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
+{
+   ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
+   if (intersect_with_current_clip_rect && _ClipRectStack.Size)
+   {
+      ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size - 1];
+      if (cr.x < current.x) cr.x = current.x;
+      if (cr.y < current.y) cr.y = current.y;
+      if (cr.z > current.z) cr.z = current.z;
+      if (cr.w > current.w) cr.w = current.w;
+   }
+   cr.z = ImMax(cr.x, cr.z);
+   cr.w = ImMax(cr.y, cr.w);
+   _ClipRectStack.push_back(cr);
+   UpdateClipRect();
+    ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
+    if (intersect_with_current_clip_rect)
+    {
+        ImVec4 current = _CmdHeader.ClipRect;
+        if (cr.x < current.x) cr.x = current.x;
+        if (cr.y < current.y) cr.y = current.y;
+        if (cr.z > current.z) cr.z = current.z;
+        if (cr.w > current.w) cr.w = current.w;
+    }
+    cr.z = ImMax(cr.x, cr.z);
+    cr.w = ImMax(cr.y, cr.w);
+    _ClipRectStack.push_back(cr);
+    _CmdHeader.ClipRect = cr;
+    _OnChangedClipRect();
+}
 void ImDrawList::PushClipRectFullScreen()
+{
    PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
+    PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
+}
 void ImDrawList::PopClipRect()
+{
    IM_ASSERT(_ClipRectStack.Size > 0);
    _ClipRectStack.pop_back();
    UpdateClipRect();
+    _ClipRectStack.pop_back();
+    _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
+    _OnChangedClipRect();
+}
 void ImDrawList::PushTextureID(ImTextureID texture_id)
+{
+   _TextureIdStack.push_back(texture_id);
+   UpdateTextureID();
+    _TextureIdStack.push_back(texture_id);
+    _CmdHeader.TextureId = texture_id;
+    _OnChangedTextureID();
+}
 void ImDrawList::PopTextureID()
+{
+   IM_ASSERT(_TextureIdStack.Size > 0);
+   _TextureIdStack.pop_back();
+   UpdateTextureID();
+}
+void ImDrawList::ChannelsSplit(int channels_count)
+{
+   IM_ASSERT(_ChannelsCurrent == 0 && _ChannelsCount == 1);
+   int old_channels_count = _Channels.Size;
+   if (old_channels_count < channels_count)
+      _Channels.resize(channels_count);
+   _ChannelsCount = channels_count;
+   // _Channels[] (24/32 bytes each) hold storage that we'll swap with this->_CmdBuffer/_IdxBuffer
+   // The content of _Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
+   // When we switch to the next channel, we'll copy _CmdBuffer/_IdxBuffer into _Channels[0] and then _Channels[1] into _CmdBuffer/_IdxBuffer
+   memset(&_Channels[0], 0, sizeof(ImDrawChannel));
+   for (int i = 1; i < channels_count; i++)
+   {
+      if (i >= old_channels_count)
+      {
+         IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
+      }
+      else
+      {
+         _Channels[i].CmdBuffer.resize(0);
+         _Channels[i].IdxBuffer.resize(0);
+      }
+      if (_Channels[i].CmdBuffer.Size == 0)
+      {
+         ImDrawCmd draw_cmd;
+         draw_cmd.ClipRect = _ClipRectStack.back();
+         draw_cmd.TextureId = _TextureIdStack.back();
+         _Channels[i].CmdBuffer.push_back(draw_cmd);
+      }
+   }
+}
+void ImDrawList::ChannelsMerge()
+{
+   // Note that we never use or rely on channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
+   if (_ChannelsCount <= 1)
+      return;
+   ChannelsSetCurrent(0);
+   if (CmdBuffer.Size && CmdBuffer.back().ElemCount == 0)
+      CmdBuffer.pop_back();
+   int new_cmd_buffer_count = 0, new_idx_buffer_count = 0;
+   for (int i = 1; i < _ChannelsCount; i++)
+   {
+      ImDrawChannel& ch = _Channels[i];
+      if (ch.CmdBuffer.Size && ch.CmdBuffer.back().ElemCount == 0)
+         ch.CmdBuffer.pop_back();
+      new_cmd_buffer_count += ch.CmdBuffer.Size;
+      new_idx_buffer_count += ch.IdxBuffer.Size;
+   }
+   CmdBuffer.resize(CmdBuffer.Size + new_cmd_buffer_count);
+   IdxBuffer.resize(IdxBuffer.Size + new_idx_buffer_count);
+   ImDrawCmd* cmd_write = CmdBuffer.Data + CmdBuffer.Size - new_cmd_buffer_count;
+   _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size - new_idx_buffer_count;
+   for (int i = 1; i < _ChannelsCount; i++)
+   {
+      ImDrawChannel& ch = _Channels[i];
+      if (int sz = ch.CmdBuffer.Size) { memcpy(cmd_write, ch.CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
+      if (int sz = ch.IdxBuffer.Size) { memcpy(_IdxWritePtr, ch.IdxBuffer.Data, sz * sizeof(ImDrawIdx)); _IdxWritePtr += sz; }
+   }
+   UpdateClipRect(); // We call this instead of AddDrawCmd(), so that empty channels won't produce an extra draw call.
+   _ChannelsCount = 1;
+}
+void ImDrawList::ChannelsSetCurrent(int idx)
+{
+   IM_ASSERT(idx < _ChannelsCount);
+   if (_ChannelsCurrent == idx) return;
+   memcpy(&_Channels.Data[_ChannelsCurrent].CmdBuffer, &CmdBuffer, sizeof(CmdBuffer)); // copy 12 bytes, four times
+   memcpy(&_Channels.Data[_ChannelsCurrent].IdxBuffer, &IdxBuffer, sizeof(IdxBuffer));
+   _ChannelsCurrent = idx;
+   memcpy(&CmdBuffer, &_Channels.Data[_ChannelsCurrent].CmdBuffer, sizeof(CmdBuffer));
+   memcpy(&IdxBuffer, &_Channels.Data[_ChannelsCurrent].IdxBuffer, sizeof(IdxBuffer));
+   _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size;
+}
+// NB: this can be called with negative count for removing primitives (as long as the result does not underflow)
+    _TextureIdStack.pop_back();
+    _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
+    _OnChangedTextureID();
+}
+// Reserve space for a number of vertices and indices.
+// You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
+// submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
 void ImDrawList::PrimReserve(int idx_count, int vtx_count)
+{
+   ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size - 1];
+   draw_cmd.ElemCount += idx_count;
+   int vtx_buffer_old_size = VtxBuffer.Size;
+   VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
+   _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
+   int idx_buffer_old_size = IdxBuffer.Size;
+   IdxBuffer.resize(idx_buffer_old_size + idx_count);
+   _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
+    // Large mesh support (when enabled)
+    IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
+    if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
+    {
+        // FIXME: In theory we should be testing that vtx_count <64k here.
+        // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
+        // to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
+        _CmdHeader.VtxOffset = VtxBuffer.Size;
+        _OnChangedVtxOffset();
+    }
+    ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    draw_cmd->ElemCount += idx_count;
+    int vtx_buffer_old_size = VtxBuffer.Size;
+    VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
+    _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
+    int idx_buffer_old_size = IdxBuffer.Size;
+    IdxBuffer.resize(idx_buffer_old_size + idx_count);
+    _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
+}
+// Release the a number of reserved vertices/indices from the end of the last reservation made with PrimReserve().
+void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
+{
+    IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
+    ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    draw_cmd->ElemCount -= idx_count;
+    VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
+    IdxBuffer.shrink(IdxBuffer.Size - idx_count);
+}
 …
 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
+{
    ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
    ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
    _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx + 2);
    _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx + 3);
    _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
    _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
    _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
    _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
    _VtxWritePtr += 4;
    _VtxCurrentIdx += 4;
    _IdxWritePtr += 6;
+    ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
+    ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
+    _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
+    _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
+    _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
+    _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
+    _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
+    _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
+    _VtxWritePtr += 4;
+    _VtxCurrentIdx += 4;
+    _IdxWritePtr += 6;
+}
 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
+{
    ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y);
    ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
    _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx + 2);
    _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx + 3);
    _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
    _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
    _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
    _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
    _VtxWritePtr += 4;
    _VtxCurrentIdx += 4;
    _IdxWritePtr += 6;
+    ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y);
+    ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
+    _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
+    _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
+    _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
+    _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
+    _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
+    _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
+    _VtxWritePtr += 4;
+    _VtxCurrentIdx += 4;
+    _IdxWritePtr += 6;
+}
 void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
+{
+   ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
+   _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx + 2);
+   _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx + 3);
+   _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
+   _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
+   _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
+   _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
+   _VtxWritePtr += 4;
+   _VtxCurrentIdx += 4;
+   _IdxWritePtr += 6;
+}
+    ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
+    _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
+    _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
+    _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
+    _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
+    _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
+    _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
+    _VtxWritePtr += 4;
+    _VtxCurrentIdx += 4;
+    _IdxWritePtr += 6;
+}
+// On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
+// Those macros expects l-values.
+#define IM_NORMALIZE2F_OVER_ZERO(VX,VY)     do { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = 1.0f / ImSqrt(d2); VX *= inv_len; VY *= inv_len; } } while (0)
+#define IM_FIXNORMAL2F(VX,VY)               do { float d2 = VX*VX + VY*VY; if (d2 < 0.5f) d2 = 0.5f; float inv_lensq = 1.0f / d2; VX *= inv_lensq; VY *= inv_lensq; } while (0)
 // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
+// We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness)
+{
+   if (points_count < 2)
+      return;
+   const ImVec2 uv = _Data->TexUvWhitePixel;
+   int count = points_count;
+   if (!closed)
+      count = points_count - 1;
+   const bool thick_line = thickness > 1.0f;
+   if (Flags & ImDrawListFlags_AntiAliasedLines)
+   {
+      // Anti-aliased stroke
+      const float AA_SIZE = 1.0f;
+      const ImU32 col_trans = col & ~IM_COL32_A_MASK;
+      const int idx_count = thick_line ? count * 18 : count * 12;
+      const int vtx_count = thick_line ? points_count * 4 : points_count * 3;
+      PrimReserve(idx_count, vtx_count);
+      // Temporary buffer
+      ImVec2* temp_normals = (ImVec2*)alloca(points_count * (thick_line ? 5 : 3) * sizeof(ImVec2));
+      ImVec2* temp_points = temp_normals + points_count;
+      for (int i1 = 0; i1 < count; i1++)
+      {
+         const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
+         ImVec2 diff = points[i2] - points[i1];
+         diff *= ImInvLength(diff, 1.0f);
+         temp_normals[i1].x = diff.y;
+         temp_normals[i1].y = -diff.x;
+      }
+      if (!closed)
+         temp_normals[points_count - 1] = temp_normals[points_count - 2];
+      if (!thick_line)
+      {
+         if (!closed)
+         {
+            temp_points[0] = points[0] + temp_normals[0] * AA_SIZE;
+            temp_points[1] = points[0] - temp_normals[0] * AA_SIZE;
+            temp_points[(points_count - 1) * 2 + 0] = points[points_count - 1] + temp_normals[points_count - 1] * AA_SIZE;
+            temp_points[(points_count - 1) * 2 + 1] = points[points_count - 1] - temp_normals[points_count - 1] * AA_SIZE;
+         }
+         // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
+         unsigned int idx1 = _VtxCurrentIdx;
+         for (int i1 = 0; i1 < count; i1++)
+         {
+    if (points_count < 2)
+        return;
+    const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
+    const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
+    const bool thick_line = (thickness > 1.0f);
+    if (Flags & ImDrawListFlags_AntiAliasedLines)
+    {
+        // Anti-aliased stroke
+        const float AA_SIZE = 1.0f;
+        const ImU32 col_trans = col & ~IM_COL32_A_MASK;
+        // Thicknesses <1.0 should behave like thickness 1.0
+        thickness = ImMax(thickness, 1.0f);
+        const int integer_thickness = (int)thickness;
+        const float fractional_thickness = thickness - integer_thickness;
+        // Do we want to draw this line using a texture?
+        // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
+        // - If AA_SIZE is not 1.0f we cannot use the texture path.
+        const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f);
+        // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
+        IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
+        const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
+        const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
+        PrimReserve(idx_count, vtx_count);
+        // Temporary buffer
+        // The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point
+        ImVec2* temp_normals = (ImVec2*)alloca(points_count * ((use_texture || !thick_line) ? 3 : 5) * sizeof(ImVec2)); //-V630
+        ImVec2* temp_points = temp_normals + points_count;
+        // Calculate normals (tangents) for each line segment
+        for (int i1 = 0; i1 < count; i1++)
+        {
             const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
+            unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : idx1 + 3;
+            float dx = points[i2].x - points[i1].x;
+            float dy = points[i2].y - points[i1].y;
+            IM_NORMALIZE2F_OVER_ZERO(dx, dy);
+            temp_normals[i1].x = dy;
+            temp_normals[i1].y = -dx;
+        }
+        if (!closed)
+            temp_normals[points_count - 1] = temp_normals[points_count - 2];
+        // If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point
+        if (use_texture || !thick_line)
+        {
+            // [PATH 1] Texture-based lines (thick or non-thick)
+            // [PATH 2] Non texture-based lines (non-thick)
+            // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
+            // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
+            //   (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
+            // - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to
+            //   allow scaling geometry while preserving one-screen-pixel AA fringe).
+            const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
+            // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
+            if (!closed)
+            {
+                temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
+                temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
+                temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
+                temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
+            }
+            // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
+            // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
+            // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
+            unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
+            for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
+            {
+                const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
+                const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
+                // Average normals
+                float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
+                float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
+                IM_FIXNORMAL2F(dm_x, dm_y);
+                dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
+                dm_y *= half_draw_size;
+                // Add temporary vertexes for the outer edges
+                ImVec2* out_vtx = &temp_points[i2 * 2];
+                out_vtx[0].x = points[i2].x + dm_x;
+                out_vtx[0].y = points[i2].y + dm_y;
+                out_vtx[1].x = points[i2].x - dm_x;
+                out_vtx[1].y = points[i2].y - dm_y;
+                if (use_texture)
+                {
+                    // Add indices for two triangles
+                    _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
+                    _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
+                    _IdxWritePtr += 6;
+                }
+                else
+                {
+                    // Add indexes for four triangles
+                    _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
+                    _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
+                    _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
+                    _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
+                    _IdxWritePtr += 12;
+                }
+                idx1 = idx2;
+            }
+            // Add vertexes for each point on the line
+            if (use_texture)
+            {
+                // If we're using textures we only need to emit the left/right edge vertices
+                ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
+                if (fractional_thickness != 0.0f)
+                {
+                    const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
+                    tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
+                    tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
+                    tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
+                    tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
+                }
+                ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
+                ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
+                for (int i = 0; i < points_count; i++)
+                {
+                    _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
+                    _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
+                    _VtxWritePtr += 2;
+                }
+            }
+            else
+            {
+                // If we're not using a texture, we need the center vertex as well
+                for (int i = 0; i < points_count; i++)
+                {
+                    _VtxWritePtr[0].pos = points[i];              _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;       // Center of line
+                    _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
+                    _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
+                    _VtxWritePtr += 3;
+                }
+            }
+        }
+        else
+        {
+            // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
+            const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
+            // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
+            if (!closed)
+            {
+                const int points_last = points_count - 1;
+                temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
+                temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
+                temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
+                temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
+                temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
+                temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
+                temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
+                temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
+            }
+            // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
+            // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
+            // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
+            unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
+            for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
+            {
+                const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
+                const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
+                // Average normals
+                float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
+                float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
+                IM_FIXNORMAL2F(dm_x, dm_y);
+                float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
+                float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
+                float dm_in_x = dm_x * half_inner_thickness;
+                float dm_in_y = dm_y * half_inner_thickness;
+                // Add temporary vertices
+                ImVec2* out_vtx = &temp_points[i2 * 4];
+                out_vtx[0].x = points[i2].x + dm_out_x;
+                out_vtx[0].y = points[i2].y + dm_out_y;
+                out_vtx[1].x = points[i2].x + dm_in_x;
+                out_vtx[1].y = points[i2].y + dm_in_y;
+                out_vtx[2].x = points[i2].x - dm_in_x;
+                out_vtx[2].y = points[i2].y - dm_in_y;
+                out_vtx[3].x = points[i2].x - dm_out_x;
+                out_vtx[3].y = points[i2].y - dm_out_y;
+                // Add indexes
+                _IdxWritePtr[0]  = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1]  = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2]  = (ImDrawIdx)(idx1 + 2);
+                _IdxWritePtr[3]  = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4]  = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5]  = (ImDrawIdx)(idx2 + 1);
+                _IdxWritePtr[6]  = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7]  = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8]  = (ImDrawIdx)(idx1 + 0);
+                _IdxWritePtr[9]  = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
+                _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
+                _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
+                _IdxWritePtr += 18;
+                idx1 = idx2;
+            }
+            // Add vertices
+            for (int i = 0; i < points_count; i++)
+            {
+                _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
+                _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
+                _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
+                _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
+                _VtxWritePtr += 4;
+            }
+        }
+        _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+    }
+    else
+    {
+        // [PATH 4] Non texture-based, Non anti-aliased lines
+        const int idx_count = count * 6;
+        const int vtx_count = count * 4;    // FIXME-OPT: Not sharing edges
+        PrimReserve(idx_count, vtx_count);
+        for (int i1 = 0; i1 < count; i1++)
+        {
+            const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
+            const ImVec2& p1 = points[i1];
+            const ImVec2& p2 = points[i2];
+            float dx = p2.x - p1.x;
+            float dy = p2.y - p1.y;
+            IM_NORMALIZE2F_OVER_ZERO(dx, dy);
+            dx *= (thickness * 0.5f);
+            dy *= (thickness * 0.5f);
+            _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
+            _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
+            _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
+            _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
+            _VtxWritePtr += 4;
+            _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
+            _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
+            _IdxWritePtr += 6;
+            _VtxCurrentIdx += 4;
+        }
+    }
+}
+// We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
+void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
+{
+    if (points_count < 3)
+        return;
+    const ImVec2 uv = _Data->TexUvWhitePixel;
+    if (Flags & ImDrawListFlags_AntiAliasedFill)
+    {
+        // Anti-aliased Fill
+        const float AA_SIZE = 1.0f;
+        const ImU32 col_trans = col & ~IM_COL32_A_MASK;
+        const int idx_count = (points_count - 2)*3 + points_count * 6;
+        const int vtx_count = (points_count * 2);
+        PrimReserve(idx_count, vtx_count);
+        // Add indexes for fill
+        unsigned int vtx_inner_idx = _VtxCurrentIdx;
+        unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
+        for (int i = 2; i < points_count; i++)
+        {
+            _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
+            _IdxWritePtr += 3;
+        }
+        // Compute normals
+        ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
+        for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
+        {
+            const ImVec2& p0 = points[i0];
+            const ImVec2& p1 = points[i1];
+            float dx = p1.x - p0.x;
+            float dy = p1.y - p0.y;
+            IM_NORMALIZE2F_OVER_ZERO(dx, dy);
+            temp_normals[i0].x = dy;
+            temp_normals[i0].y = -dx;
+        }
+        for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
+        {
             // Average normals
+            ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f;
+            float dmr2 = dm.x*dm.x + dm.y*dm.y;
+            if (dmr2 > 0.000001f)
+            const ImVec2& n0 = temp_normals[i0];
+            const ImVec2& n1 = temp_normals[i1];
+            float dm_x = (n0.x + n1.x) * 0.5f;
+            float dm_y = (n0.y + n1.y) * 0.5f;
+            IM_FIXNORMAL2F(dm_x, dm_y);
+            dm_x *= AA_SIZE * 0.5f;
+            dm_y *= AA_SIZE * 0.5f;
+            // Add vertices
+            _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;        // Inner
+            _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;  // Outer
+            _VtxWritePtr += 2;
+            // Add indexes for fringes
+            _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
+            _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
+            _IdxWritePtr += 6;
+        }
+        _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+    }
+    else
+    {
+        // Non Anti-aliased Fill
+        const int idx_count = (points_count - 2)*3;
+        const int vtx_count = points_count;
+        PrimReserve(idx_count, vtx_count);
+        for (int i = 0; i < vtx_count; i++)
+        {
+            _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
+            _VtxWritePtr++;
+        }
+        for (int i = 2; i < points_count; i++)
+        {
+            _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
+            _IdxWritePtr += 3;
+        }
+        _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+    }
+}
+void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
+{
+    if (radius == 0.0f || a_min_of_12 > a_max_of_12)
+    {
+        _Path.push_back(center);
+        return;
+    }
+    // For legacy reason the PathArcToFast() always takes angles where 2*PI is represented by 12,
+    // but it is possible to set IM_DRAWLIST_ARCFAST_TESSELATION_MULTIPLIER to a higher value. This should compile to a no-op otherwise.
+#if IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER != 1
+    a_min_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
+    a_max_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
+#endif
+    _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
+    for (int a = a_min_of_12; a <= a_max_of_12; a++)
+    {
+        const ImVec2& c = _Data->ArcFastVtx[a % IM_ARRAYSIZE(_Data->ArcFastVtx)];
+        _Path.push_back(ImVec2(center.x + c.x * radius, center.y + c.y * radius));
+    }
+}
+void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
+{
+    if (radius == 0.0f)
+    {
+        _Path.push_back(center);
+        return;
+    }
+    // Note that we are adding a point at both a_min and a_max.
+    // If you are trying to draw a full closed circle you don't want the overlapping points!
+    _Path.reserve(_Path.Size + (num_segments + 1));
+    for (int i = 0; i <= num_segments; i++)
+    {
+        const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
+        _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
+    }
+}
+ImVec2 ImBezierCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
+{
+    float u = 1.0f - t;
+    float w1 = u*u*u;
+    float w2 = 3*u*u*t;
+    float w3 = 3*u*t*t;
+    float w4 = t*t*t;
+    return ImVec2(w1*p1.x + w2*p2.x + w3*p3.x + w4*p4.x, w1*p1.y + w2*p2.y + w3*p3.y + w4*p4.y);
+}
+// Closely mimics BezierClosestPointCasteljauStep() in imgui.cpp
+static void PathBezierToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
+{
+    float dx = x4 - x1;
+    float dy = y4 - y1;
+    float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
+    float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
+    d2 = (d2 >= 0) ? d2 : -d2;
+    d3 = (d3 >= 0) ? d3 : -d3;
+    if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
+    {
+        path->push_back(ImVec2(x4, y4));
+    }
+    else if (level < 10)
+    {
+        float x12 = (x1 + x2)*0.5f,       y12 = (y1 + y2)*0.5f;
+        float x23 = (x2 + x3)*0.5f,       y23 = (y2 + y3)*0.5f;
+        float x34 = (x3 + x4)*0.5f,       y34 = (y3 + y4)*0.5f;
+        float x123 = (x12 + x23)*0.5f,    y123 = (y12 + y23)*0.5f;
+        float x234 = (x23 + x34)*0.5f,    y234 = (y23 + y34)*0.5f;
+        float x1234 = (x123 + x234)*0.5f, y1234 = (y123 + y234)*0.5f;
+        PathBezierToCasteljau(path, x1, y1,        x12, y12,    x123, y123,  x1234, y1234, tess_tol, level + 1);
+        PathBezierToCasteljau(path, x1234, y1234,  x234, y234,  x34, y34,    x4, y4,       tess_tol, level + 1);
+    }
+}
+void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
+{
+    ImVec2 p1 = _Path.back();
+    if (num_segments == 0)
+    {
+        PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
+    }
+    else
+    {
+        float t_step = 1.0f / (float)num_segments;
+        for (int i_step = 1; i_step <= num_segments; i_step++)
+            _Path.push_back(ImBezierCalc(p1, p2, p3, p4, t_step * i_step));
+    }
+}
+void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawCornerFlags rounding_corners)
+{
+    rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((rounding_corners & ImDrawCornerFlags_Top)  == ImDrawCornerFlags_Top)  || ((rounding_corners & ImDrawCornerFlags_Bot)   == ImDrawCornerFlags_Bot)   ? 0.5f : 1.0f ) - 1.0f);
+    rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((rounding_corners & ImDrawCornerFlags_Left) == ImDrawCornerFlags_Left) || ((rounding_corners & ImDrawCornerFlags_Right) == ImDrawCornerFlags_Right) ? 0.5f : 1.0f ) - 1.0f);
+    if (rounding <= 0.0f || rounding_corners == 0)
+    {
+        PathLineTo(a);
+        PathLineTo(ImVec2(b.x, a.y));
+        PathLineTo(b);
+        PathLineTo(ImVec2(a.x, b.y));
+    }
+    else
+    {
+        const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
+        const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
+        const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
+        const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
+        PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
+        PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
+        PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
+        PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
+    }
+}
+void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    PathLineTo(p1 + ImVec2(0.5f, 0.5f));
+    PathLineTo(p2 + ImVec2(0.5f, 0.5f));
+    PathStroke(col, false, thickness);
+}
+// p_min = upper-left, p_max = lower-right
+// Note we don't render 1 pixels sized rectangles properly.
+void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    if (Flags & ImDrawListFlags_AntiAliasedLines)
+        PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, rounding_corners);
+    else
+        PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, rounding_corners); // Better looking lower-right corner and rounded non-AA shapes.
+    PathStroke(col, true, thickness);
+}
+void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    if (rounding > 0.0f)
+    {
+        PathRect(p_min, p_max, rounding, rounding_corners);
+        PathFillConvex(col);
+    }
+    else
+    {
+        PrimReserve(6, 4);
+        PrimRect(p_min, p_max, col);
+    }
+}
+// p_min = upper-left, p_max = lower-right
+void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
+{
+    if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
+        return;
+    const ImVec2 uv = _Data->TexUvWhitePixel;
+    PrimReserve(6, 4);
+    PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
+    PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
+    PrimWriteVtx(p_min, uv, col_upr_left);
+    PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
+    PrimWriteVtx(p_max, uv, col_bot_right);
+    PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
+}
+void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    PathLineTo(p1);
+    PathLineTo(p2);
+    PathLineTo(p3);
+    PathLineTo(p4);
+    PathStroke(col, true, thickness);
+}
+void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    PathLineTo(p1);
+    PathLineTo(p2);
+    PathLineTo(p3);
+    PathLineTo(p4);
+    PathFillConvex(col);
+}
+void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    PathLineTo(p1);
+    PathLineTo(p2);
+    PathLineTo(p3);
+    PathStroke(col, true, thickness);
+}
+void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    PathLineTo(p1);
+    PathLineTo(p2);
+    PathLineTo(p3);
+    PathFillConvex(col);
+}
+void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
+        return;
+    // Obtain segment count
+    if (num_segments <= 0)
+    {
+        // Automatic segment count
+        const int radius_idx = (int)radius - 1;
+        if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
+            num_segments = _Data->CircleSegmentCounts[radius_idx]; // Use cached value
+        else
+            num_segments = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
+    }
+    else
+    {
+        // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
+        num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
+    }
+    // Because we are filling a closed shape we remove 1 from the count of segments/points
+    const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
+    if (num_segments == 12)
+        PathArcToFast(center, radius - 0.5f, 0, 12 - 1);
+    else
+        PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
+    PathStroke(col, true, thickness);
+}
+void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
+{
+    if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
+        return;
+    // Obtain segment count
+    if (num_segments <= 0)
+    {
+        // Automatic segment count
+        const int radius_idx = (int)radius - 1;
+        if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
+            num_segments = _Data->CircleSegmentCounts[radius_idx]; // Use cached value
+        else
+            num_segments = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
+    }
+    else
+    {
+        // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
+        num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
+    }
+    // Because we are filling a closed shape we remove 1 from the count of segments/points
+    const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
+    if (num_segments == 12)
+        PathArcToFast(center, radius, 0, 12 - 1);
+    else
+        PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
+    PathFillConvex(col);
+}
+// Guaranteed to honor 'num_segments'
+void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
+        return;
+    // Because we are filling a closed shape we remove 1 from the count of segments/points
+    const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
+    PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
+    PathStroke(col, true, thickness);
+}
+// Guaranteed to honor 'num_segments'
+void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
+{
+    if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
+        return;
+    // Because we are filling a closed shape we remove 1 from the count of segments/points
+    const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
+    PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
+    PathFillConvex(col);
+}
+// Cubic Bezier takes 4 controls points
+void ImDrawList::AddBezierCurve(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    PathLineTo(p1);
+    PathBezierCurveTo(p2, p3, p4, num_segments);
+    PathStroke(col, false, thickness);
+}
+void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    if (text_end == NULL)
+        text_end = text_begin + strlen(text_begin);
+    if (text_begin == text_end)
+        return;
+    // Pull default font/size from the shared ImDrawListSharedData instance
+    if (font == NULL)
+        font = _Data->Font;
+    if (font_size == 0.0f)
+        font_size = _Data->FontSize;
+    IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId);  // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
+    ImVec4 clip_rect = _CmdHeader.ClipRect;
+    if (cpu_fine_clip_rect)
+    {
+        clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
+        clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
+        clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
+        clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
+    }
+    font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
+}
+void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
+{
+    AddText(NULL, 0.0f, pos, col, text_begin, text_end);
+}
+void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
+    if (push_texture_id)
+        PushTextureID(user_texture_id);
+    PrimReserve(6, 4);
+    PrimRectUV(p_min, p_max, uv_min, uv_max, col);
+    if (push_texture_id)
+        PopTextureID();
+}
+void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
+    if (push_texture_id)
+        PushTextureID(user_texture_id);
+    PrimReserve(6, 4);
+    PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
+    if (push_texture_id)
+        PopTextureID();
+}
+void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
+    {
+        AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
+        return;
+    }
+    const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
+    if (push_texture_id)
+        PushTextureID(user_texture_id);
+    int vert_start_idx = VtxBuffer.Size;
+    PathRect(p_min, p_max, rounding, rounding_corners);
+    PathFillConvex(col);
+    int vert_end_idx = VtxBuffer.Size;
+    ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
+    if (push_texture_id)
+        PopTextureID();
+}
+//-----------------------------------------------------------------------------
+// [SECTION] ImDrawListSplitter
+//-----------------------------------------------------------------------------
+// FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
+//-----------------------------------------------------------------------------
+void ImDrawListSplitter::ClearFreeMemory()
+{
+    for (int i = 0; i < _Channels.Size; i++)
+    {
+        if (i == _Current)
+            memset(&_Channels[i], 0, sizeof(_Channels[i]));  // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
+        _Channels[i]._CmdBuffer.clear();
+        _Channels[i]._IdxBuffer.clear();
+    }
+    _Current = 0;
+    _Count = 1;
+    _Channels.clear();
+}
+void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
+{
+    IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
+    int old_channels_count = _Channels.Size;
+    if (old_channels_count < channels_count)
+        _Channels.resize(channels_count);
+    _Count = channels_count;
+    // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
+    // The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
+    // When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
+    memset(&_Channels[0], 0, sizeof(ImDrawChannel));
+    for (int i = 1; i < channels_count; i++)
+    {
+        if (i >= old_channels_count)
+        {
+            IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
+        }
+        else
+        {
+            _Channels[i]._CmdBuffer.resize(0);
+            _Channels[i]._IdxBuffer.resize(0);
+        }
+        if (_Channels[i]._CmdBuffer.Size == 0)
+        {
+            ImDrawCmd draw_cmd;
+            ImDrawCmd_HeaderCopy(&draw_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
+            _Channels[i]._CmdBuffer.push_back(draw_cmd);
+        }
+    }
+}
+void ImDrawListSplitter::Merge(ImDrawList* draw_list)
+{
+    // Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
+    if (_Count <= 1)
+        return;
+    SetCurrentChannel(draw_list, 0);
+    draw_list->_PopUnusedDrawCmd();
+    // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
+    int new_cmd_buffer_count = 0;
+    int new_idx_buffer_count = 0;
+    ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
+    int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
+    for (int i = 1; i < _Count; i++)
+    {
+        ImDrawChannel& ch = _Channels[i];
+        // Equivalent of PopUnusedDrawCmd() for this channel's cmdbuffer and except we don't need to test for UserCallback.
+        if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
+            ch._CmdBuffer.pop_back();
+        if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
+        {
+            ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
+            if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
+            {
+               float scale = 1.0f / dmr2;
+               if (scale > 100.0f) scale = 100.0f;
+               dm *= scale;
+                // Merge previous channel last draw command with current channel first draw command if matching.
+                last_cmd->ElemCount += next_cmd->ElemCount;
+                idx_offset += next_cmd->ElemCount;
+                ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
+            }
+            dm *= AA_SIZE;
+            temp_points[i2 * 2 + 0] = points[i2] + dm;
+            temp_points[i2 * 2 + 1] = points[i2] - dm;
+            // Add indexes
+            _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
+            _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0);
+            _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
+            _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
+            _IdxWritePtr += 12;
+            idx1 = idx2;
+         }
+         // Add vertexes
+         for (int i = 0; i < points_count; i++)
+         {
+            _VtxWritePtr[0].pos = points[i];          _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
+            _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;
+            _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col_trans;
+            _VtxWritePtr += 3;
+         }
+      }
+      else
+      {
+         const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
+         if (!closed)
+         {
+            temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
+            temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
+            temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
+            temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
+            temp_points[(points_count - 1) * 4 + 0] = points[points_count - 1] + temp_normals[points_count - 1] * (half_inner_thickness + AA_SIZE);
+            temp_points[(points_count - 1) * 4 + 1] = points[points_count - 1] + temp_normals[points_count - 1] * (half_inner_thickness);
+            temp_points[(points_count - 1) * 4 + 2] = points[points_count - 1] - temp_normals[points_count - 1] * (half_inner_thickness);
+            temp_points[(points_count - 1) * 4 + 3] = points[points_count - 1] - temp_normals[points_count - 1] * (half_inner_thickness + AA_SIZE);
+         }
+         // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
+         unsigned int idx1 = _VtxCurrentIdx;
+         for (int i1 = 0; i1 < count; i1++)
+         {
+            const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
+            unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : idx1 + 4;
+            // Average normals
+            ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f;
+            float dmr2 = dm.x*dm.x + dm.y*dm.y;
+            if (dmr2 > 0.000001f)
+            {
+               float scale = 1.0f / dmr2;
+               if (scale > 100.0f) scale = 100.0f;
+               dm *= scale;
+            }
+            ImVec2 dm_out = dm * (half_inner_thickness + AA_SIZE);
+            ImVec2 dm_in = dm * half_inner_thickness;
+            temp_points[i2 * 4 + 0] = points[i2] + dm_out;
+            temp_points[i2 * 4 + 1] = points[i2] + dm_in;
+            temp_points[i2 * 4 + 2] = points[i2] - dm_in;
+            temp_points[i2 * 4 + 3] = points[i2] - dm_out;
+            // Add indexes
+            _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
+            _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
+            _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
+            _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
+            _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
+            _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
+            _IdxWritePtr += 18;
+            idx1 = idx2;
+         }
+         // Add vertexes
+         for (int i = 0; i < points_count; i++)
+         {
+            _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col_trans;
+            _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
+            _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
+            _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col_trans;
+            _VtxWritePtr += 4;
+         }
+      }
+      _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+   }
+   else
+   {
+      // Non Anti-aliased Stroke
+      const int idx_count = count * 6;
+      const int vtx_count = count * 4;      // FIXME-OPT: Not sharing edges
+      PrimReserve(idx_count, vtx_count);
+      for (int i1 = 0; i1 < count; i1++)
+      {
+         const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
+         const ImVec2& p1 = points[i1];
+         const ImVec2& p2 = points[i2];
+         ImVec2 diff = p2 - p1;
+         diff *= ImInvLength(diff, 1.0f);
+         const float dx = diff.x * (thickness * 0.5f);
+         const float dy = diff.y * (thickness * 0.5f);
+         _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
+         _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
+         _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
+         _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
+         _VtxWritePtr += 4;
+         _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
+         _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
+         _IdxWritePtr += 6;
+         _VtxCurrentIdx += 4;
+      }
+   }
+}
+void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
+{
+   const ImVec2 uv = _Data->TexUvWhitePixel;
+   if (Flags & ImDrawListFlags_AntiAliasedFill)
+   {
+      // Anti-aliased Fill
+      const float AA_SIZE = 1.0f;
+      const ImU32 col_trans = col & ~IM_COL32_A_MASK;
+      const int idx_count = (points_count - 2) * 3 + points_count * 6;
+      const int vtx_count = (points_count * 2);
+      PrimReserve(idx_count, vtx_count);
+      // Add indexes for fill
+      unsigned int vtx_inner_idx = _VtxCurrentIdx;
+      unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
+      for (int i = 2; i < points_count; i++)
+      {
+         _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
+         _IdxWritePtr += 3;
+      }
+      // Compute normals
+      ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2));
+      for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
+      {
+         const ImVec2& p0 = points[i0];
+         const ImVec2& p1 = points[i1];
+         ImVec2 diff = p1 - p0;
+         diff *= ImInvLength(diff, 1.0f);
+         temp_normals[i0].x = diff.y;
+         temp_normals[i0].y = -diff.x;
+      }
+      for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
+      {
+         // Average normals
+         const ImVec2& n0 = temp_normals[i0];
+         const ImVec2& n1 = temp_normals[i1];
+         ImVec2 dm = (n0 + n1) * 0.5f;
+         float dmr2 = dm.x*dm.x + dm.y*dm.y;
+         if (dmr2 > 0.000001f)
+         {
+            float scale = 1.0f / dmr2;
+            if (scale > 100.0f) scale = 100.0f;
+            dm *= scale;
+         }
+         dm *= AA_SIZE * 0.5f;
+         // Add vertices
+         _VtxWritePtr[0].pos = (points[i1] - dm); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;        // Inner
+         _VtxWritePtr[1].pos = (points[i1] + dm); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;  // Outer
+         _VtxWritePtr += 2;
+         // Add indexes for fringes
+         _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
+         _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
+         _IdxWritePtr += 6;
+      }
+      _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+   }
+   else
+   {
+      // Non Anti-aliased Fill
+      const int idx_count = (points_count - 2) * 3;
+      const int vtx_count = points_count;
+      PrimReserve(idx_count, vtx_count);
+      for (int i = 0; i < vtx_count; i++)
+      {
+         _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
+         _VtxWritePtr++;
+      }
+      for (int i = 2; i < points_count; i++)
+      {
+         _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
+         _IdxWritePtr += 3;
+      }
+      _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+   }
+}
+void ImDrawList::PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12)
+{
+   if (radius == 0.0f || a_min_of_12 > a_max_of_12)
+   {
+      _Path.push_back(centre);
+      return;
+   }
+   _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
+   for (int a = a_min_of_12; a <= a_max_of_12; a++)
+   {
+      const ImVec2& c = _Data->CircleVtx12[a % IM_ARRAYSIZE(_Data->CircleVtx12)];
+      _Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius));
+   }
+}
+void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments)
+{
+   if (radius == 0.0f)
+   {
+      _Path.push_back(centre);
+      return;
+   }
+   _Path.reserve(_Path.Size + (num_segments + 1));
+   for (int i = 0; i <= num_segments; i++)
+   {
+      const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
+      _Path.push_back(ImVec2(centre.x + cosf(a) * radius, centre.y + sinf(a) * radius));
+   }
+}
+static void PathBezierToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
+{
+   float dx = x4 - x1;
+   float dy = y4 - y1;
+   float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
+   float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
+   d2 = (d2 >= 0) ? d2 : -d2;
+   d3 = (d3 >= 0) ? d3 : -d3;
+   if ((d2 + d3) * (d2 + d3) < tess_tol * (dx*dx + dy * dy))
+   {
+      path->push_back(ImVec2(x4, y4));
+   }
+   else if (level < 10)
+   {
+      float x12 = (x1 + x2)*0.5f, y12 = (y1 + y2)*0.5f;
+      float x23 = (x2 + x3)*0.5f, y23 = (y2 + y3)*0.5f;
+      float x34 = (x3 + x4)*0.5f, y34 = (y3 + y4)*0.5f;
+      float x123 = (x12 + x23)*0.5f, y123 = (y12 + y23)*0.5f;
+      float x234 = (x23 + x34)*0.5f, y234 = (y23 + y34)*0.5f;
+      float x1234 = (x123 + x234)*0.5f, y1234 = (y123 + y234)*0.5f;
+      PathBezierToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
+      PathBezierToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
+   }
+}
+void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
+{
+   ImVec2 p1 = _Path.back();
+   if (num_segments == 0)
+   {
+      // Auto-tessellated
+      PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0);
+   }
+   else
+   {
+      float t_step = 1.0f / (float)num_segments;
+      for (int i_step = 1; i_step <= num_segments; i_step++)
+      {
+         float t = t_step * i_step;
+         float u = 1.0f - t;
+         float w1 = u * u*u;
+         float w2 = 3 * u*u*t;
+         float w3 = 3 * u*t*t;
+         float w4 = t * t*t;
+         _Path.push_back(ImVec2(w1*p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1*p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y));
+      }
+   }
+}
+void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners)
+{
+   rounding = ImMin(rounding, fabsf(b.x - a.x) * (((rounding_corners & ImDrawCornerFlags_Top) == ImDrawCornerFlags_Top) || ((rounding_corners & ImDrawCornerFlags_Bot) == ImDrawCornerFlags_Bot) ? 0.5f : 1.0f) - 1.0f);
+   rounding = ImMin(rounding, fabsf(b.y - a.y) * (((rounding_corners & ImDrawCornerFlags_Left) == ImDrawCornerFlags_Left) || ((rounding_corners & ImDrawCornerFlags_Right) == ImDrawCornerFlags_Right) ? 0.5f : 1.0f) - 1.0f);
+   if (rounding <= 0.0f || rounding_corners == 0)
+   {
+      PathLineTo(a);
+      PathLineTo(ImVec2(b.x, a.y));
+      PathLineTo(b);
+      PathLineTo(ImVec2(a.x, b.y));
+   }
+   else
+   {
+      const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
+      const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
+      const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
+      const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
+      PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
+      PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
+      PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
+      PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
+   }
+}
+void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   PathLineTo(a + ImVec2(0.5f, 0.5f));
+   PathLineTo(b + ImVec2(0.5f, 0.5f));
+   PathStroke(col, false, thickness);
+}
+// a: upper-left, b: lower-right. we don't render 1 px sized rectangles properly.
+void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags, float thickness)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   if (Flags & ImDrawListFlags_AntiAliasedLines)
+      PathRect(a + ImVec2(0.5f, 0.5f), b - ImVec2(0.50f, 0.50f), rounding, rounding_corners_flags);
+   else
+      PathRect(a + ImVec2(0.5f, 0.5f), b - ImVec2(0.49f, 0.49f), rounding, rounding_corners_flags); // Better looking lower-right corner and rounded non-AA shapes.
+   PathStroke(col, true, thickness);
+}
+void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   if (rounding > 0.0f)
+   {
+      PathRect(a, b, rounding, rounding_corners_flags);
+      PathFillConvex(col);
+   }
+   else
+   {
+      PrimReserve(6, 4);
+      PrimRect(a, b, col);
+   }
+}
+void ImDrawList::AddRectFilledMultiColor(const ImVec2& a, const ImVec2& c, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
+{
+   if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
+      return;
+   const ImVec2 uv = _Data->TexUvWhitePixel;
+   PrimReserve(6, 4);
+   PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
+   PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
+   PrimWriteVtx(a, uv, col_upr_left);
+   PrimWriteVtx(ImVec2(c.x, a.y), uv, col_upr_right);
+   PrimWriteVtx(c, uv, col_bot_right);
+   PrimWriteVtx(ImVec2(a.x, c.y), uv, col_bot_left);
+}
+void ImDrawList::AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   PathLineTo(a);
+   PathLineTo(b);
+   PathLineTo(c);
+   PathLineTo(d);
+   PathStroke(col, true, thickness);
+}
+void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   PathLineTo(a);
+   PathLineTo(b);
+   PathLineTo(c);
+   PathLineTo(d);
+   PathFillConvex(col);
+}
+void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   PathLineTo(a);
+   PathLineTo(b);
+   PathLineTo(c);
+   PathStroke(col, true, thickness);
+}
+void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   PathLineTo(a);
+   PathLineTo(b);
+   PathLineTo(c);
+   PathFillConvex(col);
+}
+void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
+   PathArcTo(centre, radius - 0.5f, 0.0f, a_max, num_segments);
+   PathStroke(col, true, thickness);
+}
+void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
+   PathArcTo(centre, radius, 0.0f, a_max, num_segments);
+   PathFillConvex(col);
+}
+void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   PathLineTo(pos0);
+   PathBezierCurveTo(cp0, cp1, pos1, num_segments);
+   PathStroke(col, false, thickness);
+}
+void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   if (text_end == NULL)
+      text_end = text_begin + strlen(text_begin);
+   if (text_begin == text_end)
+      return;
+   // Pull default font/size from the shared ImDrawListSharedData instance
+   if (font == NULL)
+      font = _Data->Font;
+   if (font_size == 0.0f)
+      font_size = _Data->FontSize;
+   IM_ASSERT(font->ContainerAtlas->TexID == _TextureIdStack.back());  // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
+   ImVec4 clip_rect = _ClipRectStack.back();
+   if (cpu_fine_clip_rect)
+   {
+      clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
+      clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
+      clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
+      clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
+   }
+   font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
+}
+void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
+{
+   AddText(NULL, 0.0f, pos, col, text_begin, text_end);
+}
+void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
+   if (push_texture_id)
+      PushTextureID(user_texture_id);
+   PrimReserve(6, 4);
+   PrimRectUV(a, b, uv_a, uv_b, col);
+   if (push_texture_id)
+      PopTextureID();
+}
+void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
+   if (push_texture_id)
+      PushTextureID(user_texture_id);
+   PrimReserve(6, 4);
+   PrimQuadUV(a, b, c, d, uv_a, uv_b, uv_c, uv_d, col);
+   if (push_texture_id)
+      PopTextureID();
+}
+void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col, float rounding, int rounding_corners)
+{
+   if ((col & IM_COL32_A_MASK) == 0)
+      return;
+   if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
+   {
+      AddImage(user_texture_id, a, b, uv_a, uv_b, col);
+      return;
+   }
+   const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
+   if (push_texture_id)
+      PushTextureID(user_texture_id);
+   int vert_start_idx = VtxBuffer.Size;
+   PathRect(a, b, rounding, rounding_corners);
+   PathFillConvex(col);
+   int vert_end_idx = VtxBuffer.Size;
+   ImGui::ShadeVertsLinearUV(VtxBuffer.Data + vert_start_idx, VtxBuffer.Data + vert_end_idx, a, b, uv_a, uv_b, true);
+   if (push_texture_id)
+      PopTextureID();
+        }
+        if (ch._CmdBuffer.Size > 0)
+            last_cmd = &ch._CmdBuffer.back();
+        new_cmd_buffer_count += ch._CmdBuffer.Size;
+        new_idx_buffer_count += ch._IdxBuffer.Size;
+        for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
+        {
+            ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
+            idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
+        }
+    }
+    draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
+    draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
+    // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
+    ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
+    ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
+    for (int i = 1; i < _Count; i++)
+    {
+        ImDrawChannel& ch = _Channels[i];
+        if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
+        if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
+    }
+    draw_list->_IdxWritePtr = idx_write;
+    // Ensure there's always a non-callback draw command trailing the command-buffer
+    if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
+        draw_list->AddDrawCmd();
+    // If current command is used with different settings we need to add a new command
+    ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount == 0)
+        ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
+    else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
+        draw_list->AddDrawCmd();
+    _Count = 1;
+}
+void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
+{
+    IM_ASSERT(idx >= 0 && idx < _Count);
+    if (_Current == idx)
+        return;
+    // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
+    memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
+    memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
+    _Current = idx;
+    memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
+    memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
+    draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
+    // If current command is used with different settings we need to add a new command
+    ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount == 0)
+        ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
+    else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
+        draw_list->AddDrawCmd();
+}
 //-----------------------------------------------------------------------------
 // ImDrawData
+// [SECTION] ImDrawData
 //-----------------------------------------------------------------------------
 …
 void ImDrawData::DeIndexAllBuffers()
+{
+   ImVector<ImDrawVert> new_vtx_buffer;
+   TotalVtxCount = TotalIdxCount = 0;
+   for (int i = 0; i < CmdListsCount; i++)
+   {
+      ImDrawList* cmd_list = CmdLists[i];
+      if (cmd_list->IdxBuffer.empty())
+         continue;
+      new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
+      for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
+         new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
+      cmd_list->VtxBuffer.swap(new_vtx_buffer);
+      cmd_list->IdxBuffer.resize(0);
+      TotalVtxCount += cmd_list->VtxBuffer.Size;
+   }
+}
+// Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
+void ImDrawData::ScaleClipRects(const ImVec2& scale)
+{
+   for (int i = 0; i < CmdListsCount; i++)
+   {
+      ImDrawList* cmd_list = CmdLists[i];
+      for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
+      {
+         ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
+         cmd->ClipRect = ImVec4(cmd->ClipRect.x * scale.x, cmd->ClipRect.y * scale.y, cmd->ClipRect.z * scale.x, cmd->ClipRect.w * scale.y);
+      }
+   }
+    ImVector<ImDrawVert> new_vtx_buffer;
+    TotalVtxCount = TotalIdxCount = 0;
+    for (int i = 0; i < CmdListsCount; i++)
+    {
+        ImDrawList* cmd_list = CmdLists[i];
+        if (cmd_list->IdxBuffer.empty())
+            continue;
+        new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
+        for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
+            new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
+        cmd_list->VtxBuffer.swap(new_vtx_buffer);
+        cmd_list->IdxBuffer.resize(0);
+        TotalVtxCount += cmd_list->VtxBuffer.Size;
+    }
+}
+// Helper to scale the ClipRect field of each ImDrawCmd.
+// Use if your final output buffer is at a different scale than draw_data->DisplaySize,
+// or if there is a difference between your window resolution and framebuffer resolution.
+void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
+{
+    for (int i = 0; i < CmdListsCount; i++)
+    {
+        ImDrawList* cmd_list = CmdLists[i];
+        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
+        {
+            ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
+            cmd->ClipRect = ImVec4(cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y);
+        }
+    }
+}
 //-----------------------------------------------------------------------------
 // Shade functions
+// [SECTION] Helpers ShadeVertsXXX functions
 //-----------------------------------------------------------------------------
 // Generic linear color gradient, write to RGB fields, leave A untouched.
+void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawVert* vert_start, ImDrawVert* vert_end, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
+{
+   ImVec2 gradient_extent = gradient_p1 - gradient_p0;
+   float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
+   for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
+   {
+      float d = ImDot(vert->pos - gradient_p0, gradient_extent);
+      float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
+      int r = ImLerp((int)(col0 >> IM_COL32_R_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_R_SHIFT) & 0xFF, t);
+      int g = ImLerp((int)(col0 >> IM_COL32_G_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_G_SHIFT) & 0xFF, t);
+      int b = ImLerp((int)(col0 >> IM_COL32_B_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_B_SHIFT) & 0xFF, t);
+      vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
+   }
+}
+// Scan and shade backward from the end of given vertices. Assume vertices are text only (= vert_start..vert_end going left to right) so we can break as soon as we are out the gradient bounds.
+void ImGui::ShadeVertsLinearAlphaGradientForLeftToRightText(ImDrawVert* vert_start, ImDrawVert* vert_end, float gradient_p0_x, float gradient_p1_x)
+{
+   float gradient_extent_x = gradient_p1_x - gradient_p0_x;
+   float gradient_inv_length2 = 1.0f / (gradient_extent_x * gradient_extent_x);
+   int full_alpha_count = 0;
+   for (ImDrawVert* vert = vert_end - 1; vert >= vert_start; vert--)
+   {
+      float d = (vert->pos.x - gradient_p0_x) * (gradient_extent_x);
+      float alpha_mul = 1.0f - ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
+      if (alpha_mul >= 1.0f && ++full_alpha_count > 2)
+         return; // Early out
+      int a = (int)(((vert->col >> IM_COL32_A_SHIFT) & 0xFF) * alpha_mul);
+      vert->col = (vert->col & ~IM_COL32_A_MASK) | (a << IM_COL32_A_SHIFT);
+   }
+void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
+{
+    ImVec2 gradient_extent = gradient_p1 - gradient_p0;
+    float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
+    ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
+    ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
+    const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
+    const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
+    const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
+    const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
+    const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
+    const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
+    for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
+    {
+        float d = ImDot(vert->pos - gradient_p0, gradient_extent);
+        float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
+        int r = (int)(col0_r + col_delta_r * t);
+        int g = (int)(col0_g + col_delta_g * t);
+        int b = (int)(col0_b + col_delta_b * t);
+        vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
+    }
+}
 // Distribute UV over (a, b) rectangle
+void ImGui::ShadeVertsLinearUV(ImDrawVert* vert_start, ImDrawVert* vert_end, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
+{
+   const ImVec2 size = b - a;
+   const ImVec2 uv_size = uv_b - uv_a;
+   const ImVec2 scale = ImVec2(
+      size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
+      size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
+   if (clamp)
+   {
+      const ImVec2 min = ImMin(uv_a, uv_b);
+      const ImVec2 max = ImMax(uv_a, uv_b);
+      for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
+         vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
+   }
+   else
+   {
+      for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
+         vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
+   }
+void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
+{
+    const ImVec2 size = b - a;
+    const ImVec2 uv_size = uv_b - uv_a;
+    const ImVec2 scale = ImVec2(
+        size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
+        size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
+    ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
+    ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
+    if (clamp)
+    {
+        const ImVec2 min = ImMin(uv_a, uv_b);
+        const ImVec2 max = ImMax(uv_a, uv_b);
+        for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
+            vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
+    }
+    else
+    {
+        for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
+            vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
+    }
+}
 //-----------------------------------------------------------------------------
 // ImFontConfig
+// [SECTION] ImFontConfig
 //-----------------------------------------------------------------------------
 ImFontConfig::ImFontConfig()
+{
+   FontData = NULL;
+   FontDataSize = 0;
+   FontDataOwnedByAtlas = true;
+   FontNo = 0;
+   SizePixels = 0.0f;
+   OversampleH = 3;
+   OversampleV = 1;
+   PixelSnapH = false;
+   GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
+   GlyphOffset = ImVec2(0.0f, 0.0f);
+   GlyphRanges = NULL;
+   MergeMode = false;
+   RasterizerFlags = 0x00;
+   RasterizerMultiply = 1.0f;
+   memset(Name, 0, sizeof(Name));
+   DstFont = NULL;
+    FontData = NULL;
+    FontDataSize = 0;
+    FontDataOwnedByAtlas = true;
+    FontNo = 0;
+    SizePixels = 0.0f;
+    OversampleH = 3; // FIXME: 2 may be a better default?
+    OversampleV = 1;
+    PixelSnapH = false;
+    GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
+    GlyphOffset = ImVec2(0.0f, 0.0f);
+    GlyphRanges = NULL;
+    GlyphMinAdvanceX = 0.0f;
+    GlyphMaxAdvanceX = FLT_MAX;
+    MergeMode = false;
+    RasterizerFlags = 0x00;
+    RasterizerMultiply = 1.0f;
+    EllipsisChar = (ImWchar)-1;
+    memset(Name, 0, sizeof(Name));
+    DstFont = NULL;
+}
 //-----------------------------------------------------------------------------
 // ImFontAtlas
+// [SECTION] ImFontAtlas
 //-----------------------------------------------------------------------------
 // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
 // The white texels on the top left are the ones we'll use everywhere in ImGui to render filled shapes.
 const int FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF = 90;
+// The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
+const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 108; // Actual texture will be 2 times that + 1 spacing.
 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
+const unsigned int FONT_ATLAS_DEFAULT_TEX_DATA_ID = 0x80000000;
+static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
+{
+   "..-         -XXXXXXX-    X    -           X           -XXXXXXX          -          XXXXXXX"
+   "..-         -X.....X-   X.X   -          X.X          -X.....X          -          X.....X"
+   "---         -XXX.XXX-  X...X  -         X...X         -X....X           -           X....X"
+   "X           -  X.X  - X.....X -        X.....X        -X...X            -            X...X"
+   "XX          -  X.X  -X.......X-       X.......X       -X..X.X           -           X.X..X"
+   "X.X         -  X.X  -XXXX.XXXX-       XXXX.XXXX       -X.X X.X          -          X.X X.X"
+   "X..X        -  X.X  -   X.X   -          X.X          -XX   X.X         -         X.X   XX"
+   "X...X       -  X.X  -   X.X   -    XX    X.X    XX    -      X.X        -        X.X      "
+   "X....X      -  X.X  -   X.X   -   X.X    X.X    X.X   -       X.X       -       X.X       "
+   "X.....X     -  X.X  -   X.X   -  X..X    X.X    X..X  -        X.X      -      X.X        "
+   "X......X    -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -         X.X   XX-XX   X.X         "
+   "X.......X   -  X.X  -   X.X   -X.....................X-          X.X X.X-X.X X.X          "
+   "X........X  -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -           X.X..X-X..X.X           "
+   "X.........X -XXX.XXX-   X.X   -  X..X    X.X    X..X  -            X...X-X...X            "
+   "X..........X-X.....X-   X.X   -   X.X    X.X    X.X   -           X....X-X....X           "
+   "X......XXXXX-XXXXXXX-   X.X   -    XX    X.X    XX    -          X.....X-X.....X          "
+   "X...X..X    ---------   X.X   -          X.X          -          XXXXXXX-XXXXXXX          "
+   "X..X X..X   -       -XXXX.XXXX-       XXXX.XXXX       ------------------------------------"
+   "X.X  X..X   -       -X.......X-       X.......X       -    XX           XX    -           "
+   "XX    X..X  -       - X.....X -        X.....X        -   X.X           X.X   -           "
+   "      X..X          -  X...X  -         X...X         -  X..X           X..X  -           "
+   "       XX           -   X.X   -          X.X          - X...XXXXXXXXXXXXX...X -           "
+   "------------        -    X    -           X           -X.....................X-           "
+   "                    ----------------------------------- X...XXXXXXXXXXXXX...X -           "
+   "                                                      -  X..X           X..X  -           "
+   "                                                      -   X.X           X.X   -           "
+   "                                                      -    XX           XX    -           "
+static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
+{
+    "..-         -XXXXXXX-    X    -           X           -XXXXXXX          -          XXXXXXX-     XX          "
+    "..-         -X.....X-   X.X   -          X.X          -X.....X          -          X.....X-    X..X         "
+    "---         -XXX.XXX-  X...X  -         X...X         -X....X           -           X....X-    X..X         "
+    "X           -  X.X  - X.....X -        X.....X        -X...X            -            X...X-    X..X         "
+    "XX          -  X.X  -X.......X-       X.......X       -X..X.X           -           X.X..X-    X..X         "
+    "X.X         -  X.X  -XXXX.XXXX-       XXXX.XXXX       -X.X X.X          -          X.X X.X-    X..XXX       "
+    "X..X        -  X.X  -   X.X   -          X.X          -XX   X.X         -         X.X   XX-    X..X..XXX    "
+    "X...X       -  X.X  -   X.X   -    XX    X.X    XX    -      X.X        -        X.X      -    X..X..X..XX  "
+    "X....X      -  X.X  -   X.X   -   X.X    X.X    X.X   -       X.X       -       X.X       -    X..X..X..X.X "
+    "X.....X     -  X.X  -   X.X   -  X..X    X.X    X..X  -        X.X      -      X.X        -XXX X..X..X..X..X"
+    "X......X    -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -         X.X   XX-XX   X.X         -X..XX........X..X"
+    "X.......X   -  X.X  -   X.X   -X.....................X-          X.X X.X-X.X X.X          -X...X...........X"
+    "X........X  -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -           X.X..X-X..X.X           - X..............X"
+    "X.........X -XXX.XXX-   X.X   -  X..X    X.X    X..X  -            X...X-X...X            -  X.............X"
+    "X..........X-X.....X-   X.X   -   X.X    X.X    X.X   -           X....X-X....X           -  X.............X"
+    "X......XXXXX-XXXXXXX-   X.X   -    XX    X.X    XX    -          X.....X-X.....X          -   X............X"
+    "X...X..X    ---------   X.X   -          X.X          -          XXXXXXX-XXXXXXX          -   X...........X "
+    "X..X X..X   -       -XXXX.XXXX-       XXXX.XXXX       -------------------------------------    X..........X "
+    "X.X  X..X   -       -X.......X-       X.......X       -    XX           XX    -           -    X..........X "
+    "XX    X..X  -       - X.....X -        X.....X        -   X.X           X.X   -           -     X........X  "
+    "      X..X          -  X...X  -         X...X         -  X..X           X..X  -           -     X........X  "
+    "       XX           -   X.X   -          X.X          - X...XXXXXXXXXXXXX...X -           -     XXXXXXXXXX  "
+    "------------        -    X    -           X           -X.....................X-           ------------------"
+    "                    ----------------------------------- X...XXXXXXXXXXXXX...X -                             "
+    "                                                      -  X..X           X..X  -                             "
+    "                                                      -   X.X           X.X   -                             "
+    "                                                      -    XX           XX    -                             "
 };
 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
+{
+   // Pos ........ Size ......... Offset ......
+   { ImVec2(0,3),  ImVec2(12,19), ImVec2(0, 0) }, // ImGuiMouseCursor_Arrow
+{ ImVec2(13,0), ImVec2(7,16),  ImVec2(4, 8) }, // ImGuiMouseCursor_TextInput
+{ ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
+{ ImVec2(21,0), ImVec2(9,23), ImVec2(5,11) }, // ImGuiMouseCursor_ResizeNS
+{ ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 5) }, // ImGuiMouseCursor_ResizeEW
+{ ImVec2(73,0), ImVec2(17,17), ImVec2(9, 9) }, // ImGuiMouseCursor_ResizeNESW
+{ ImVec2(55,0), ImVec2(17,17), ImVec2(9, 9) }, // ImGuiMouseCursor_ResizeNWSE
+    // Pos ........ Size ......... Offset ......
+    { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
+    { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
+    { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
+    { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
+    { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
+    { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
+    { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
+    { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
 };
 ImFontAtlas::ImFontAtlas()
+{
    Flags = 0x00;
    TexID = NULL;
    TexDesiredWidth = 0;
    TexGlyphPadding = 1;
+   TexPixelsAlpha8 = NULL;
    TexPixelsRGBA32 = NULL;
    TexWidth = TexHeight = 0;
    TexUvScale = ImVec2(0.0f, 0.0f);
    TexUvWhitePixel = ImVec2(0.0f, 0.0f);
    for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
       CustomRectIds[n] = -1;
+    Locked = false;
+    Flags = ImFontAtlasFlags_None;
+    TexID = (ImTextureID)NULL;
+    TexDesiredWidth = 0;
+    TexGlyphPadding = 1;
+    TexPixelsAlpha8 = NULL;
+    TexPixelsRGBA32 = NULL;
+    TexWidth = TexHeight = 0;
+    TexUvScale = ImVec2(0.0f, 0.0f);
+    TexUvWhitePixel = ImVec2(0.0f, 0.0f);
+    PackIdMouseCursors = PackIdLines = -1;
+}
 ImFontAtlas::~ImFontAtlas()
+{
+   Clear();
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    Clear();
+}
 void    ImFontAtlas::ClearInputData()
+{
    for (int i = 0; i < ConfigData.Size; i++)
       if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
+      {
          ImGui::MemFree(ConfigData[i].FontData);
          ConfigData[i].FontData = NULL;
+      }
+   // When clearing this we lose access to the font name and other information used to build the font.
    for (int i = 0; i < Fonts.Size; i++)
       if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
+      {
          Fonts[i]->ConfigData = NULL;
          Fonts[i]->ConfigDataCount = 0;
+      }
    ConfigData.clear();
    CustomRects.clear();
    for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
       CustomRectIds[n] = -1;
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    for (int i = 0; i < ConfigData.Size; i++)
+        if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
+        {
+            IM_FREE(ConfigData[i].FontData);
+            ConfigData[i].FontData = NULL;
+        }
+    // When clearing this we lose access to the font name and other information used to build the font.
+    for (int i = 0; i < Fonts.Size; i++)
+        if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
+        {
+            Fonts[i]->ConfigData = NULL;
+            Fonts[i]->ConfigDataCount = 0;
+        }
+    ConfigData.clear();
+    CustomRects.clear();
+    PackIdMouseCursors = PackIdLines = -1;
+}
 void    ImFontAtlas::ClearTexData()
+{
+   if (TexPixelsAlpha8)
+      ImGui::MemFree(TexPixelsAlpha8);
+   if (TexPixelsRGBA32)
+      ImGui::MemFree(TexPixelsRGBA32);
+   TexPixelsAlpha8 = NULL;
+   TexPixelsRGBA32 = NULL;
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    if (TexPixelsAlpha8)
+        IM_FREE(TexPixelsAlpha8);
+    if (TexPixelsRGBA32)
+        IM_FREE(TexPixelsRGBA32);
+    TexPixelsAlpha8 = NULL;
+    TexPixelsRGBA32 = NULL;
+}
 void    ImFontAtlas::ClearFonts()
+{
+   for (int i = 0; i < Fonts.Size; i++)
+      IM_DELETE(Fonts[i]);
+   Fonts.clear();
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    for (int i = 0; i < Fonts.Size; i++)
+        IM_DELETE(Fonts[i]);
+    Fonts.clear();
+}
 void    ImFontAtlas::Clear()
+{
    ClearInputData();
    ClearTexData();
    ClearFonts();
+    ClearInputData();
+    ClearTexData();
+    ClearFonts();
+}
 void    ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
+{
    // Build atlas on demand
    if (TexPixelsAlpha8 == NULL)
+   {
       if (ConfigData.empty())
          AddFontDefault();
       Build();
+   }
    *out_pixels = TexPixelsAlpha8;
    if (out_width) *out_width = TexWidth;
    if (out_height) *out_height = TexHeight;
    if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
+    // Build atlas on demand
+    if (TexPixelsAlpha8 == NULL)
+    {
+        if (ConfigData.empty())
+            AddFontDefault();
+        Build();
+    }
+    *out_pixels = TexPixelsAlpha8;
+    if (out_width) *out_width = TexWidth;
+    if (out_height) *out_height = TexHeight;
+    if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
+}
 void    ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
+{
    // Convert to RGBA32 format on demand
    // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
    if (!TexPixelsRGBA32)
+   {
       unsigned char* pixels = NULL;
       GetTexDataAsAlpha8(&pixels, NULL, NULL);
       if (pixels)
+      {
          TexPixelsRGBA32 = (unsigned int*)ImGui::MemAlloc((size_t)(TexWidth * TexHeight * 4));
          const unsigned char* src = pixels;
          unsigned int* dst = TexPixelsRGBA32;
          for (int n = TexWidth * TexHeight; n > 0; n--)
             *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
+      }
+   }
    *out_pixels = (unsigned char*)TexPixelsRGBA32;
    if (out_width) *out_width = TexWidth;
    if (out_height) *out_height = TexHeight;
    if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
+    // Convert to RGBA32 format on demand
+    // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
+    if (!TexPixelsRGBA32)
+    {
+        unsigned char* pixels = NULL;
+        GetTexDataAsAlpha8(&pixels, NULL, NULL);
+        if (pixels)
+        {
+            TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
+            const unsigned char* src = pixels;
+            unsigned int* dst = TexPixelsRGBA32;
+            for (int n = TexWidth * TexHeight; n > 0; n--)
+                *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
+        }
+    }
+    *out_pixels = (unsigned char*)TexPixelsRGBA32;
+    if (out_width) *out_width = TexWidth;
+    if (out_height) *out_height = TexHeight;
+    if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
+}
 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
+{
+   IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
+   IM_ASSERT(font_cfg->SizePixels > 0.0f);
+   // Create new font
+   if (!font_cfg->MergeMode)
+      Fonts.push_back(IM_NEW(ImFont));
+   else
+      IM_ASSERT(!Fonts.empty()); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
+   ConfigData.push_back(*font_cfg);
+   ImFontConfig& new_font_cfg = ConfigData.back();
+   if (!new_font_cfg.DstFont)
+      new_font_cfg.DstFont = Fonts.back();
+   if (!new_font_cfg.FontDataOwnedByAtlas)
+   {
+      new_font_cfg.FontData = ImGui::MemAlloc(new_font_cfg.FontDataSize);
+      new_font_cfg.FontDataOwnedByAtlas = true;
+      memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
+   }
+   // Invalidate texture
+   ClearTexData();
+   return new_font_cfg.DstFont;
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
+    IM_ASSERT(font_cfg->SizePixels > 0.0f);
+    // Create new font
+    if (!font_cfg->MergeMode)
+        Fonts.push_back(IM_NEW(ImFont));
+    else
+        IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
+    ConfigData.push_back(*font_cfg);
+    ImFontConfig& new_font_cfg = ConfigData.back();
+    if (new_font_cfg.DstFont == NULL)
+        new_font_cfg.DstFont = Fonts.back();
+    if (!new_font_cfg.FontDataOwnedByAtlas)
+    {
+        new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
+        new_font_cfg.FontDataOwnedByAtlas = true;
+        memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
+    }
+    if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
+        new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
+    // Invalidate texture
+    ClearTexData();
+    return new_font_cfg.DstFont;
+}
 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
 static unsigned int stb_decompress_length(const unsigned char *input);
 static unsigned int stb_decompress(unsigned char *output, const unsigned char *input, unsigned int length);
+static unsigned int stb_decompress_length(const unsigned char* input);
+static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
 static const char*  GetDefaultCompressedFontDataTTFBase85();
 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c - 36 : c - 35; }
+static unsigned int Decode85Byte(char c)                                    { return c >= '\\' ? c-36 : c-35; }
 static void         Decode85(const unsigned char* src, unsigned char* dst)
+{
    while (*src)
+   {
       unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
       dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF);   // We can't assume little-endianness.
       src += 5;
       dst += 4;
+   }
+    while (*src)
+    {
+        unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
+        dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF);   // We can't assume little-endianness.
+        src += 5;
+        dst += 4;
+    }
+}
 …
 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
+{
+   ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+   if (!font_cfg_template)
+   {
+      font_cfg.OversampleH = font_cfg.OversampleV = 1;
+      font_cfg.PixelSnapH = true;
+   }
+   if (font_cfg.Name[0] == '\0') strcpy(font_cfg.Name, "ProggyClean.ttf, 13px");
+   if (font_cfg.SizePixels <= 0.0f) font_cfg.SizePixels = 13.0f;
+   const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
+   ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, GetGlyphRangesDefault());
+   font->DisplayOffset.y = 1.0f;
+   return font;
+    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+    if (!font_cfg_template)
+    {
+        font_cfg.OversampleH = font_cfg.OversampleV = 1;
+        font_cfg.PixelSnapH = true;
+    }
+    if (font_cfg.SizePixels <= 0.0f)
+        font_cfg.SizePixels = 13.0f * 1.0f;
+    if (font_cfg.Name[0] == '\0')
+        ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
+    font_cfg.EllipsisChar = (ImWchar)0x0085;
+    font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f);  // Add +1 offset per 13 units
+    const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
+    const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
+    ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
+    return font;
+}
 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
+{
+   int data_size = 0;
+   void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
+   if (!data)
+   {
+      IM_ASSERT(0); // Could not load file.
+      return NULL;
+   }
+   ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+   if (font_cfg.Name[0] == '\0')
+   {
+      // Store a short copy of filename into into the font name for convenience
+      const char* p;
+      for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
+      ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
+   }
+   return AddFontFromMemoryTTF(data, data_size, size_pixels, &font_cfg, glyph_ranges);
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    size_t data_size = 0;
+    void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
+    if (!data)
+    {
+        IM_ASSERT_USER_ERROR(0, "Could not load font file!");
+        return NULL;
+    }
+    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+    if (font_cfg.Name[0] == '\0')
+    {
+        // Store a short copy of filename into into the font name for convenience
+        const char* p;
+        for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
+        ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
+    }
+    return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
+}
 …
 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
+{
+   ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+   IM_ASSERT(font_cfg.FontData == NULL);
+   font_cfg.FontData = ttf_data;
+   font_cfg.FontDataSize = ttf_size;
+   font_cfg.SizePixels = size_pixels;
+   if (glyph_ranges)
+      font_cfg.GlyphRanges = glyph_ranges;
+   return AddFont(&font_cfg);
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+    IM_ASSERT(font_cfg.FontData == NULL);
+    font_cfg.FontData = ttf_data;
+    font_cfg.FontDataSize = ttf_size;
+    font_cfg.SizePixels = size_pixels;
+    if (glyph_ranges)
+        font_cfg.GlyphRanges = glyph_ranges;
+    return AddFont(&font_cfg);
+}
 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
+{
    const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
    unsigned char* buf_decompressed_data = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size);
    stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
    IM_ASSERT(font_cfg.FontData == NULL);
    font_cfg.FontDataOwnedByAtlas = true;
    return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
+    const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
+    unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
+    stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
+    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+    IM_ASSERT(font_cfg.FontData == NULL);
+    font_cfg.FontDataOwnedByAtlas = true;
+    return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
+}
 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
+{
+   int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
+   void* compressed_ttf = ImGui::MemAlloc((size_t)compressed_ttf_size);
+   Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
+   ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
+   ImGui::MemFree(compressed_ttf);
+   return font;
+}
+int ImFontAtlas::AddCustomRectRegular(unsigned int id, int width, int height)
+{
+   IM_ASSERT(id >= 0x10000);
+   IM_ASSERT(width > 0 && width <= 0xFFFF);
+   IM_ASSERT(height > 0 && height <= 0xFFFF);
+   CustomRect r;
+   r.ID = id;
+   r.Width = (unsigned short)width;
+   r.Height = (unsigned short)height;
+   CustomRects.push_back(r);
+   return CustomRects.Size - 1; // Return index
+    int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
+    void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
+    Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
+    ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
+    IM_FREE(compressed_ttf);
+    return font;
+}
+int ImFontAtlas::AddCustomRectRegular(int width, int height)
+{
+    IM_ASSERT(width > 0 && width <= 0xFFFF);
+    IM_ASSERT(height > 0 && height <= 0xFFFF);
+    ImFontAtlasCustomRect r;
+    r.Width = (unsigned short)width;
+    r.Height = (unsigned short)height;
+    CustomRects.push_back(r);
+    return CustomRects.Size - 1; // Return index
+}
 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
+{
+   IM_ASSERT(font != NULL);
+   IM_ASSERT(width > 0 && width <= 0xFFFF);
+   IM_ASSERT(height > 0 && height <= 0xFFFF);
+   CustomRect r;
+   r.ID = id;
+   r.Width = (unsigned short)width;
+   r.Height = (unsigned short)height;
+   r.GlyphAdvanceX = advance_x;
+   r.GlyphOffset = offset;
+   r.Font = font;
+   CustomRects.push_back(r);
+   return CustomRects.Size - 1; // Return index
+}
+void ImFontAtlas::CalcCustomRectUV(const CustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max)
+{
+   IM_ASSERT(TexWidth > 0 && TexHeight > 0);   // Font atlas needs to be built before we can calculate UV coordinates
+   IM_ASSERT(rect->IsPacked());                // Make sure the rectangle has been packed
+   *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
+   *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
+#ifdef IMGUI_USE_WCHAR32
+    IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
+#endif
+    IM_ASSERT(font != NULL);
+    IM_ASSERT(width > 0 && width <= 0xFFFF);
+    IM_ASSERT(height > 0 && height <= 0xFFFF);
+    ImFontAtlasCustomRect r;
+    r.Width = (unsigned short)width;
+    r.Height = (unsigned short)height;
+    r.GlyphID = id;
+    r.GlyphAdvanceX = advance_x;
+    r.GlyphOffset = offset;
+    r.Font = font;
+    CustomRects.push_back(r);
+    return CustomRects.Size - 1; // Return index
+}
+void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
+{
+    IM_ASSERT(TexWidth > 0 && TexHeight > 0);   // Font atlas needs to be built before we can calculate UV coordinates
+    IM_ASSERT(rect->IsPacked());                // Make sure the rectangle has been packed
+    *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
+    *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
+}
 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
+{
+   if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
+      return false;
+   if (Flags & ImFontAtlasFlags_NoMouseCursors)
+      return false;
+   IM_ASSERT(CustomRectIds[0] != -1);
+   ImFontAtlas::CustomRect& r = CustomRects[CustomRectIds[0]];
+   IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
+   ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r.X, (float)r.Y);
+   ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
+   *out_size = size;
+   *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
+   out_uv_border[0] = (pos)* TexUvScale;
+   out_uv_border[1] = (pos + size) * TexUvScale;
+   pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
+   out_uv_fill[0] = (pos)* TexUvScale;
+   out_uv_fill[1] = (pos + size) * TexUvScale;
+   return true;
+    if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
+        return false;
+    if (Flags & ImFontAtlasFlags_NoMouseCursors)
+        return false;
+    IM_ASSERT(PackIdMouseCursors != -1);
+    ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
+    ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
+    ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
+    *out_size = size;
+    *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
+    out_uv_border[0] = (pos) * TexUvScale;
+    out_uv_border[1] = (pos + size) * TexUvScale;
+    pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
+    out_uv_fill[0] = (pos) * TexUvScale;
+    out_uv_fill[1] = (pos + size) * TexUvScale;
+    return true;
+}
 bool    ImFontAtlas::Build()
+{
+   return ImFontAtlasBuildWithStbTruetype(this);
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    return ImFontAtlasBuildWithStbTruetype(this);
+}
 void    ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
+{
    for (unsigned int i = 0; i < 256; i++)
+   {
       unsigned int value = (unsigned int)(i * in_brighten_factor);
       out_table[i] = value > 255 ? 255 : (value & 0xFF);
+   }
+    for (unsigned int i = 0; i < 256; i++)
+    {
+        unsigned int value = (unsigned int)(i * in_brighten_factor);
+        out_table[i] = value > 255 ? 255 : (value & 0xFF);
+    }
+}
 void    ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
+{
+   unsigned char* data = pixels + x + y * stride;
+   for (int j = h; j > 0; j--, data += stride)
+      for (int i = 0; i < w; i++)
+         data[i] = table[data[i]];
+    unsigned char* data = pixels + x + y * stride;
+    for (int j = h; j > 0; j--, data += stride)
+        for (int i = 0; i < w; i++)
+            data[i] = table[data[i]];
+}
+// Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
+// (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
+struct ImFontBuildSrcData
+{
+    stbtt_fontinfo      FontInfo;
+    stbtt_pack_range    PackRange;          // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
+    stbrp_rect*         Rects;              // Rectangle to pack. We first fill in their size and the packer will give us their position.
+    stbtt_packedchar*   PackedChars;        // Output glyphs
+    const ImWchar*      SrcRanges;          // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
+    int                 DstIndex;           // Index into atlas->Fonts[] and dst_tmp_array[]
+    int                 GlyphsHighest;      // Highest requested codepoint
+    int                 GlyphsCount;        // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
+    ImBitVector         GlyphsSet;          // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
+    ImVector<int>       GlyphsList;         // Glyph codepoints list (flattened version of GlyphsMap)
+};
+// Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
+struct ImFontBuildDstData
+{
+    int                 SrcCount;           // Number of source fonts targeting this destination font.
+    int                 GlyphsHighest;
+    int                 GlyphsCount;
+    ImBitVector         GlyphsSet;          // This is used to resolve collision when multiple sources are merged into a same destination font.
+};
+static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
+{
+    IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
+    const ImU32* it_begin = in->Storage.begin();
+    const ImU32* it_end = in->Storage.end();
+    for (const ImU32* it = it_begin; it < it_end; it++)
+        if (ImU32 entries_32 = *it)
+            for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
+                if (entries_32 & ((ImU32)1 << bit_n))
+                    out->push_back((int)(((it - it_begin) << 5) + bit_n));
+}
 bool    ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
+{
+   IM_ASSERT(atlas->ConfigData.Size > 0);
+   ImFontAtlasBuildRegisterDefaultCustomRects(atlas);
+   atlas->TexID = NULL;
+   atlas->TexWidth = atlas->TexHeight = 0;
+   atlas->TexUvScale = ImVec2(0.0f, 0.0f);
+   atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
+   atlas->ClearTexData();
+   // Count glyphs/ranges
+   int total_glyphs_count = 0;
+   int total_ranges_count = 0;
+   for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
+   {
+      ImFontConfig& cfg = atlas->ConfigData[input_i];
+      if (!cfg.GlyphRanges)
+         cfg.GlyphRanges = atlas->GetGlyphRangesDefault();
+      for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2, total_ranges_count++)
+         total_glyphs_count += (in_range[1] - in_range[0]) + 1;
+   }
+   // We need a width for the skyline algorithm. Using a dumb heuristic here to decide of width. User can override TexDesiredWidth and TexGlyphPadding if they wish.
+   // Width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
+   atlas->TexWidth = (atlas->TexDesiredWidth > 0) ? atlas->TexDesiredWidth : (total_glyphs_count > 4000) ? 4096 : (total_glyphs_count > 2000) ? 2048 : (total_glyphs_count > 1000) ? 1024 : 512;
+   atlas->TexHeight = 0;
+   // Start packing
+   const int max_tex_height = 1024 * 32;
+   stbtt_pack_context spc = {};
+   if (!stbtt_PackBegin(&spc, NULL, atlas->TexWidth, max_tex_height, 0, atlas->TexGlyphPadding, NULL))
+      return false;
+   stbtt_PackSetOversampling(&spc, 1, 1);
+   // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
+   ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
+   // Initialize font information (so we can error without any cleanup)
+   struct ImFontTempBuildData
+   {
+      stbtt_fontinfo      FontInfo;
+      stbrp_rect*         Rects;
+      int                 RectsCount;
+      stbtt_pack_range*   Ranges;
+      int                 RangesCount;
+   };
+   ImFontTempBuildData* tmp_array = (ImFontTempBuildData*)ImGui::MemAlloc((size_t)atlas->ConfigData.Size * sizeof(ImFontTempBuildData));
+   for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
+   {
+      ImFontConfig& cfg = atlas->ConfigData[input_i];
+      ImFontTempBuildData& tmp = tmp_array[input_i];
+      IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
+      const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
+      IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
+      if (!stbtt_InitFont(&tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
+      {
+         atlas->TexWidth = atlas->TexHeight = 0; // Reset output on failure
+         ImGui::MemFree(tmp_array);
+         return false;
+      }
+   }
+   // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
+   int buf_packedchars_n = 0, buf_rects_n = 0, buf_ranges_n = 0;
+   stbtt_packedchar* buf_packedchars = (stbtt_packedchar*)ImGui::MemAlloc(total_glyphs_count * sizeof(stbtt_packedchar));
+   stbrp_rect* buf_rects = (stbrp_rect*)ImGui::MemAlloc(total_glyphs_count * sizeof(stbrp_rect));
+   stbtt_pack_range* buf_ranges = (stbtt_pack_range*)ImGui::MemAlloc(total_ranges_count * sizeof(stbtt_pack_range));
+   memset(buf_packedchars, 0, total_glyphs_count * sizeof(stbtt_packedchar));
+   memset(buf_rects, 0, total_glyphs_count * sizeof(stbrp_rect));              // Unnecessary but let's clear this for the sake of sanity.
+   memset(buf_ranges, 0, total_ranges_count * sizeof(stbtt_pack_range));
+   // First font pass: pack all glyphs (no rendering at this point, we are working with rectangles in an infinitely tall texture at this point)
+   for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
+   {
+      ImFontConfig& cfg = atlas->ConfigData[input_i];
+      ImFontTempBuildData& tmp = tmp_array[input_i];
+      // Setup ranges
+      int font_glyphs_count = 0;
+      int font_ranges_count = 0;
+      for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2, font_ranges_count++)
+         font_glyphs_count += (in_range[1] - in_range[0]) + 1;
+      tmp.Ranges = buf_ranges + buf_ranges_n;
+      tmp.RangesCount = font_ranges_count;
+      buf_ranges_n += font_ranges_count;
+      for (int i = 0; i < font_ranges_count; i++)
+      {
+         const ImWchar* in_range = &cfg.GlyphRanges[i * 2];
+         stbtt_pack_range& range = tmp.Ranges[i];
+         range.font_size = cfg.SizePixels;
+         range.first_unicode_codepoint_in_range = in_range[0];
+         range.num_chars = (in_range[1] - in_range[0]) + 1;
+         range.chardata_for_range = buf_packedchars + buf_packedchars_n;
+         buf_packedchars_n += range.num_chars;
+      }
+      // Pack
+      tmp.Rects = buf_rects + buf_rects_n;
+      tmp.RectsCount = font_glyphs_count;
+      buf_rects_n += font_glyphs_count;
+      stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV);
+      int n = stbtt_PackFontRangesGatherRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects);
+      IM_ASSERT(n == font_glyphs_count);
+      stbrp_pack_rects((stbrp_context*)spc.pack_info, tmp.Rects, n);
+      // Extend texture height
+      for (int i = 0; i < n; i++)
+         if (tmp.Rects[i].was_packed)
+            atlas->TexHeight = ImMax(atlas->TexHeight, tmp.Rects[i].y + tmp.Rects[i].h);
+   }
+   IM_ASSERT(buf_rects_n == total_glyphs_count);
+   IM_ASSERT(buf_packedchars_n == total_glyphs_count);
+   IM_ASSERT(buf_ranges_n == total_ranges_count);
+   // Create texture
+   atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
+   atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
+   atlas->TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(atlas->TexWidth * atlas->TexHeight);
+   memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
+   spc.pixels = atlas->TexPixelsAlpha8;
+   spc.height = atlas->TexHeight;
+   // Second pass: render font characters
+   for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
+   {
+      ImFontConfig& cfg = atlas->ConfigData[input_i];
+      ImFontTempBuildData& tmp = tmp_array[input_i];
+      stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV);
+      stbtt_PackFontRangesRenderIntoRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects);
+      if (cfg.RasterizerMultiply != 1.0f)
+      {
+         unsigned char multiply_table[256];
+         ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
+         for (const stbrp_rect* r = tmp.Rects; r != tmp.Rects + tmp.RectsCount; r++)
+            if (r->was_packed)
+               ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, spc.pixels, r->x, r->y, r->w, r->h, spc.stride_in_bytes);
+      }
+      tmp.Rects = NULL;
+   }
+   // End packing
+   stbtt_PackEnd(&spc);
+   ImGui::MemFree(buf_rects);
+   buf_rects = NULL;
+   // Third pass: setup ImFont and glyphs for runtime
+   for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
+   {
+      ImFontConfig& cfg = atlas->ConfigData[input_i];
+      ImFontTempBuildData& tmp = tmp_array[input_i];
+      ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true)
+      if (cfg.MergeMode)
+         dst_font->BuildLookupTable();
+      const float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels);
+      int unscaled_ascent, unscaled_descent, unscaled_line_gap;
+      stbtt_GetFontVMetrics(&tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
+      const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
+      const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
+      ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
+      const float off_x = cfg.GlyphOffset.x;
+      const float off_y = cfg.GlyphOffset.y + (float)(int)(dst_font->Ascent + 0.5f);
+      for (int i = 0; i < tmp.RangesCount; i++)
+      {
+         stbtt_pack_range& range = tmp.Ranges[i];
+         for (int char_idx = 0; char_idx < range.num_chars; char_idx += 1)
+         {
+            const stbtt_packedchar& pc = range.chardata_for_range[char_idx];
+            if (!pc.x0 && !pc.x1 && !pc.y0 && !pc.y1)
+               continue;
+            const int codepoint = range.first_unicode_codepoint_in_range + char_idx;
+            if (cfg.MergeMode && dst_font->FindGlyphNoFallback((unsigned short)codepoint))
+               continue;
+    IM_ASSERT(atlas->ConfigData.Size > 0);
+    ImFontAtlasBuildInit(atlas);
+    // Clear atlas
+    atlas->TexID = (ImTextureID)NULL;
+    atlas->TexWidth = atlas->TexHeight = 0;
+    atlas->TexUvScale = ImVec2(0.0f, 0.0f);
+    atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
+    atlas->ClearTexData();
+    // Temporary storage for building
+    ImVector<ImFontBuildSrcData> src_tmp_array;
+    ImVector<ImFontBuildDstData> dst_tmp_array;
+    src_tmp_array.resize(atlas->ConfigData.Size);
+    dst_tmp_array.resize(atlas->Fonts.Size);
+    memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
+    memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
+    // 1. Initialize font loading structure, check font data validity
+    for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        ImFontConfig& cfg = atlas->ConfigData[src_i];
+        IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
+        // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
+        src_tmp.DstIndex = -1;
+        for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
+            if (cfg.DstFont == atlas->Fonts[output_i])
+                src_tmp.DstIndex = output_i;
+        IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
+        if (src_tmp.DstIndex == -1)
+            return false;
+        // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
+        const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
+        IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
+        if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
+            return false;
+        // Measure highest codepoints
+        ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
+        src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
+        for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
+            src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
+        dst_tmp.SrcCount++;
+        dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
+    }
+    // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
+    int total_glyphs_count = 0;
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
+        src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
+        if (dst_tmp.GlyphsSet.Storage.empty())
+            dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
+        for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
+            for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
+            {
+                if (dst_tmp.GlyphsSet.TestBit(codepoint))    // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
+                    continue;
+                if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint))    // It is actually in the font?
+                    continue;
+                // Add to avail set/counters
+                src_tmp.GlyphsCount++;
+                dst_tmp.GlyphsCount++;
+                src_tmp.GlyphsSet.SetBit(codepoint);
+                dst_tmp.GlyphsSet.SetBit(codepoint);
+                total_glyphs_count++;
+            }
+    }
+    // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
+        UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
+        src_tmp.GlyphsSet.Clear();
+        IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
+    }
+    for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
+        dst_tmp_array[dst_i].GlyphsSet.Clear();
+    dst_tmp_array.clear();
+    // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
+    // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
+    ImVector<stbrp_rect> buf_rects;
+    ImVector<stbtt_packedchar> buf_packedchars;
+    buf_rects.resize(total_glyphs_count);
+    buf_packedchars.resize(total_glyphs_count);
+    memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
+    memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
+    // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
+    int total_surface = 0;
+    int buf_rects_out_n = 0;
+    int buf_packedchars_out_n = 0;
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        if (src_tmp.GlyphsCount == 0)
+            continue;
+        src_tmp.Rects = &buf_rects[buf_rects_out_n];
+        src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
+        buf_rects_out_n += src_tmp.GlyphsCount;
+        buf_packedchars_out_n += src_tmp.GlyphsCount;
+        // Convert our ranges in the format stb_truetype wants
+        ImFontConfig& cfg = atlas->ConfigData[src_i];
+        src_tmp.PackRange.font_size = cfg.SizePixels;
+        src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
+        src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
+        src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
+        src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
+        src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
+        src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
+        // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
+        const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
+        const int padding = atlas->TexGlyphPadding;
+        for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
+        {
+            int x0, y0, x1, y1;
+            const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
+            IM_ASSERT(glyph_index_in_font != 0);
+            stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
+            src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
+            src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
+            total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
+        }
+    }
+    // We need a width for the skyline algorithm, any width!
+    // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
+    // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
+    const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
+    atlas->TexHeight = 0;
+    if (atlas->TexDesiredWidth > 0)
+        atlas->TexWidth = atlas->TexDesiredWidth;
+    else
+        atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
+    // 5. Start packing
+    // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
+    const int TEX_HEIGHT_MAX = 1024 * 32;
+    stbtt_pack_context spc = {};
+    stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
+    ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
+    // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        if (src_tmp.GlyphsCount == 0)
+            continue;
+        stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
+        // Extend texture height and mark missing glyphs as non-packed so we won't render them.
+        // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
+        for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
+            if (src_tmp.Rects[glyph_i].was_packed)
+                atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
+    }
+    // 7. Allocate texture
+    atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
+    atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
+    atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
+    memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
+    spc.pixels = atlas->TexPixelsAlpha8;
+    spc.height = atlas->TexHeight;
+    // 8. Render/rasterize font characters into the texture
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontConfig& cfg = atlas->ConfigData[src_i];
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        if (src_tmp.GlyphsCount == 0)
+            continue;
+        stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
+        // Apply multiply operator
+        if (cfg.RasterizerMultiply != 1.0f)
+        {
+            unsigned char multiply_table[256];
+            ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
+            stbrp_rect* r = &src_tmp.Rects[0];
+            for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
+                if (r->was_packed)
+                    ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
+        }
+        src_tmp.Rects = NULL;
+    }
+    // End packing
+    stbtt_PackEnd(&spc);
+    buf_rects.clear();
+    // 9. Setup ImFont and glyphs for runtime
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        if (src_tmp.GlyphsCount == 0)
+            continue;
+        // When merging fonts with MergeMode=true:
+        // - We can have multiple input fonts writing into a same destination font.
+        // - dst_font->ConfigData is != from cfg which is our source configuration.
+        ImFontConfig& cfg = atlas->ConfigData[src_i];
+        ImFont* dst_font = cfg.DstFont;
+        const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
+        int unscaled_ascent, unscaled_descent, unscaled_line_gap;
+        stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
+        const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
+        const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
+        ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
+        const float font_off_x = cfg.GlyphOffset.x;
+        const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
+        for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
+        {
+            // Register glyph
+            const int codepoint = src_tmp.GlyphsList[glyph_i];
+            const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
             stbtt_aligned_quad q;
+            float dummy_x = 0.0f, dummy_y = 0.0f;
+            stbtt_GetPackedQuad(range.chardata_for_range, atlas->TexWidth, atlas->TexHeight, char_idx, &dummy_x, &dummy_y, &q, 0);
+            dst_font->AddGlyph((ImWchar)codepoint, q.x0 + off_x, q.y0 + off_y, q.x1 + off_x, q.y1 + off_y, q.s0, q.t0, q.s1, q.t1, pc.xadvance);
+         }
+      }
+   }
+   // Cleanup temporaries
+   ImGui::MemFree(buf_packedchars);
+   ImGui::MemFree(buf_ranges);
+   ImGui::MemFree(tmp_array);
+   ImFontAtlasBuildFinish(atlas);
+   return true;
+}
+void ImFontAtlasBuildRegisterDefaultCustomRects(ImFontAtlas* atlas)
+{
+   if (atlas->CustomRectIds[0] >= 0)
+      return;
+   if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
+      atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
+   else
+      atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, 2, 2);
+            float unused_x = 0.0f, unused_y = 0.0f;
+            stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
+            dst_font->AddGlyph(&cfg, (ImWchar)codepoint, q.x0 + font_off_x, q.y0 + font_off_y, q.x1 + font_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, pc.xadvance);
+        }
+    }
+    // Cleanup temporary (ImVector doesn't honor destructor)
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+        src_tmp_array[src_i].~ImFontBuildSrcData();
+    ImFontAtlasBuildFinish(atlas);
+    return true;
+}
 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
+{
+   if (!font_config->MergeMode)
+   {
+      font->ClearOutputData();
+      font->FontSize = font_config->SizePixels;
+      font->ConfigData = font_config;
+      font->ContainerAtlas = atlas;
+      font->Ascent = ascent;
+      font->Descent = descent;
+   }
+   font->ConfigDataCount++;
+}
+void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* pack_context_opaque)
+{
+   stbrp_context* pack_context = (stbrp_context*)pack_context_opaque;
+   ImVector<ImFontAtlas::CustomRect>& user_rects = atlas->CustomRects;
+   IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
+   ImVector<stbrp_rect> pack_rects;
+   pack_rects.resize(user_rects.Size);
+   memset(pack_rects.Data, 0, sizeof(stbrp_rect) * user_rects.Size);
+   for (int i = 0; i < user_rects.Size; i++)
+   {
+      pack_rects[i].w = user_rects[i].Width;
+      pack_rects[i].h = user_rects[i].Height;
+   }
+   stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
+   for (int i = 0; i < pack_rects.Size; i++)
+      if (pack_rects[i].was_packed)
+      {
+         user_rects[i].X = pack_rects[i].x;
+         user_rects[i].Y = pack_rects[i].y;
+         IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
+         atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
+      }
+    if (!font_config->MergeMode)
+    {
+        font->ClearOutputData();
+        font->FontSize = font_config->SizePixels;
+        font->ConfigData = font_config;
+        font->ConfigDataCount = 0;
+        font->ContainerAtlas = atlas;
+        font->Ascent = ascent;
+        font->Descent = descent;
+    }
+    font->ConfigDataCount++;
+}
+void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
+{
+    stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
+    IM_ASSERT(pack_context != NULL);
+    ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
+    IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
+    ImVector<stbrp_rect> pack_rects;
+    pack_rects.resize(user_rects.Size);
+    memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
+    for (int i = 0; i < user_rects.Size; i++)
+    {
+        pack_rects[i].w = user_rects[i].Width;
+        pack_rects[i].h = user_rects[i].Height;
+    }
+    stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
+    for (int i = 0; i < pack_rects.Size; i++)
+        if (pack_rects[i].was_packed)
+        {
+            user_rects[i].X = pack_rects[i].x;
+            user_rects[i].Y = pack_rects[i].y;
+            IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
+            atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
+        }
+}
+void ImFontAtlasBuildRender1bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value)
+{
+    IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
+    IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
+    unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
+    for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
+        for (int off_x = 0; off_x < w; off_x++)
+            out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
+}
 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
+{
+   IM_ASSERT(atlas->CustomRectIds[0] >= 0);
+   IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
+   ImFontAtlas::CustomRect& r = atlas->CustomRects[atlas->CustomRectIds[0]];
+   IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
+   IM_ASSERT(r.IsPacked());
+   const int w = atlas->TexWidth;
+   if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
+   {
+      // Render/copy pixels
+      IM_ASSERT(r.Width == FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1 && r.Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
+      for (int y = 0, n = 0; y < FONT_ATLAS_DEFAULT_TEX_DATA_H; y++)
+         for (int x = 0; x < FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF; x++, n++)
+         {
+            const int offset0 = (int)(r.X + x) + (int)(r.Y + y) * w;
+            const int offset1 = offset0 + FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
+            atlas->TexPixelsAlpha8[offset0] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == '.' ? 0xFF : 0x00;
+            atlas->TexPixelsAlpha8[offset1] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == 'X' ? 0xFF : 0x00;
+         }
+   }
+   else
+   {
+      IM_ASSERT(r.Width == 2 && r.Height == 2);
+      const int offset = (int)(r.X) + (int)(r.Y) * w;
+      atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
+   }
+   atlas->TexUvWhitePixel = ImVec2((r.X + 0.5f) * atlas->TexUvScale.x, (r.Y + 0.5f) * atlas->TexUvScale.y);
+}
+    ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
+    IM_ASSERT(r->IsPacked());
+    const int w = atlas->TexWidth;
+    if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
+    {
+        // Render/copy pixels
+        IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
+        const int x_for_white = r->X;
+        const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
+        ImFontAtlasBuildRender1bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF);
+        ImFontAtlasBuildRender1bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF);
+    }
+    else
+    {
+        // Render 4 white pixels
+        IM_ASSERT(r->Width == 2 && r->Height == 2);
+        const int offset = (int)r->X + (int)r->Y * w;
+        atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
+    }
+    atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
+}
+static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
+{
+    if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
+        return;
+    // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
+    ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
+    IM_ASSERT(r->IsPacked());
+    for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
+    {
+        // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
+        unsigned int y = n;
+        unsigned int line_width = n;
+        unsigned int pad_left = (r->Width - line_width) / 2;
+        unsigned int pad_right = r->Width - (pad_left + line_width);
+        // Write each slice
+        IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels
+        unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
+        memset(write_ptr, 0x00, pad_left);
+        memset(write_ptr + pad_left, 0xFF, line_width);
+        memset(write_ptr + pad_left + line_width, 0x00, pad_right);
+        // Calculate UVs for this line
+        ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
+        ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
+        float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
+        atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
+    }
+}
+// Note: this is called / shared by both the stb_truetype and the FreeType builder
+void ImFontAtlasBuildInit(ImFontAtlas* atlas)
+{
+    // Register texture region for mouse cursors or standard white pixels
+    if (atlas->PackIdMouseCursors < 0)
+    {
+        if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
+            atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
+        else
+            atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
+    }
+    // Register texture region for thick lines
+    // The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row
+    if (atlas->PackIdLines < 0)
+    {
+        if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
+            atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
+    }
+}
+// This is called/shared by both the stb_truetype and the FreeType builder.
 void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
+{
+   // Render into our custom data block
+   ImFontAtlasBuildRenderDefaultTexData(atlas);
+   // Register custom rectangle glyphs
+   for (int i = 0; i < atlas->CustomRects.Size; i++)
+   {
+      const ImFontAtlas::CustomRect& r = atlas->CustomRects[i];
+      if (r.Font == NULL || r.ID > 0x10000)
+         continue;
+      IM_ASSERT(r.Font->ContainerAtlas == atlas);
+      ImVec2 uv0, uv1;
+      atlas->CalcCustomRectUV(&r, &uv0, &uv1);
+      r.Font->AddGlyph((ImWchar)r.ID, r.GlyphOffset.x, r.GlyphOffset.y, r.GlyphOffset.x + r.Width, r.GlyphOffset.y + r.Height, uv0.x, uv0.y, uv1.x, uv1.y, r.GlyphAdvanceX);
+   }
+   // Build all fonts lookup tables
+   for (int i = 0; i < atlas->Fonts.Size; i++)
+      if (atlas->Fonts[i]->DirtyLookupTables)
+         atlas->Fonts[i]->BuildLookupTable();
+    // Render into our custom data blocks
+    IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
+    ImFontAtlasBuildRenderDefaultTexData(atlas);
+    ImFontAtlasBuildRenderLinesTexData(atlas);
+    // Register custom rectangle glyphs
+    for (int i = 0; i < atlas->CustomRects.Size; i++)
+    {
+        const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
+        if (r->Font == NULL || r->GlyphID == 0)
+            continue;
+        // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
+        IM_ASSERT(r->Font->ContainerAtlas == atlas);
+        ImVec2 uv0, uv1;
+        atlas->CalcCustomRectUV(r, &uv0, &uv1);
+        r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX);
+    }
+    // Build all fonts lookup tables
+    for (int i = 0; i < atlas->Fonts.Size; i++)
+        if (atlas->Fonts[i]->DirtyLookupTables)
+            atlas->Fonts[i]->BuildLookupTable();
+    // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
+    // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
+    // FIXME: Also note that 0x2026 is currently seldom included in our font ranges. Because of this we are more likely to use three individual dots.
+    for (int i = 0; i < atlas->Fonts.size(); i++)
+    {
+        ImFont* font = atlas->Fonts[i];
+        if (font->EllipsisChar != (ImWchar)-1)
+            continue;
+        const ImWchar ellipsis_variants[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
+        for (int j = 0; j < IM_ARRAYSIZE(ellipsis_variants); j++)
+            if (font->FindGlyphNoFallback(ellipsis_variants[j]) != NULL) // Verify glyph exists
+            {
+                font->EllipsisChar = ellipsis_variants[j];
+                break;
+            }
+    }
+}
 …
 const ImWchar*   ImFontAtlas::GetGlyphRangesDefault()
+{
    static const ImWchar ranges[] =
+   {
 x0020, 0x00FF, // Basic Latin + Latin Supplement
 ,
    };
    return &ranges[0];
+    static const ImWchar ranges[] =
+    {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+,
+    };
+    return &ranges[0];
+}
 const ImWchar*  ImFontAtlas::GetGlyphRangesKorean()
+{
+   static const ImWchar ranges[] =
+   {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+x3131, 0x3163, // Korean alphabets
+xAC00, 0xD79D, // Korean characters
+,
+   };
+   return &ranges[0];
+}
+const ImWchar*  ImFontAtlas::GetGlyphRangesChinese()
+{
+   static const ImWchar ranges[] =
+   {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+x3000, 0x30FF, // Punctuations, Hiragana, Katakana
+x31F0, 0x31FF, // Katakana Phonetic Extensions
+xFF00, 0xFFEF, // Half-width characters
+x4e00, 0x9FAF, // CJK Ideograms
+,
+   };
+   return &ranges[0];
+    static const ImWchar ranges[] =
+    {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+x3131, 0x3163, // Korean alphabets
+xAC00, 0xD7A3, // Korean characters
+,
+    };
+    return &ranges[0];
+}
+const ImWchar*  ImFontAtlas::GetGlyphRangesChineseFull()
+{
+    static const ImWchar ranges[] =
+    {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+x2000, 0x206F, // General Punctuation
+x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
+x31F0, 0x31FF, // Katakana Phonetic Extensions
+xFF00, 0xFFEF, // Half-width characters
+x4e00, 0x9FAF, // CJK Ideograms
+,
+    };
+    return &ranges[0];
+}
+static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
+{
+    for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
+    {
+        out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
+        base_codepoint += accumulative_offsets[n];
+    }
+    out_ranges[0] = 0;
+}
+//-------------------------------------------------------------------------
+// [SECTION] ImFontAtlas glyph ranges helpers
+//-------------------------------------------------------------------------
+const ImWchar*  ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
+{
+    // Store 2500 regularly used characters for Simplified Chinese.
+    // Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8
+    // This table covers 97.97% of all characters used during the month in July, 1987.
+    // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
+    // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
+    static const short accumulative_offsets_from_0x4E00[] =
+    {
+,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2,
+,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4,
+,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1,
+,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2,
+,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6,
+,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1,
+,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3,
+,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4,
+,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12,
+,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1,
+,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23,
+,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6,
+,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6,
+,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1,
+,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5,
+,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15,
+,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6,
+,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4,
+,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5,
+,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2,
+,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16,
+,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31,
+,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7,
+,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2,
+,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13,
+,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3,
+,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4,
+,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1,
+,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3,
+,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11,
+,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9,
+,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2,
+,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3,
+,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12,
+,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8,
+,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5,
+,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1,
+,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5,
+,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6,
+,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6
+    };
+    static ImWchar base_ranges[] = // not zero-terminated
+    {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+x2000, 0x206F, // General Punctuation
+x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
+x31F0, 0x31FF, // Katakana Phonetic Extensions
+xFF00, 0xFFEF  // Half-width characters
+    };
+    static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
+    if (!full_ranges[0])
+    {
+        memcpy(full_ranges, base_ranges, sizeof(base_ranges));
+        UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
+    }
+    return &full_ranges[0];
+}
 const ImWchar*  ImFontAtlas::GetGlyphRangesJapanese()
+{
+   // Store the 1946 ideograms code points as successive offsets from the initial unicode codepoint 0x4E00. Each offset has an implicit +1.
+   // This encoding is designed to helps us reduce the source code size.
+   // FIXME: Source a list of the revised 2136 joyo kanji list from 2010 and rebuild this.
+   // The current list was sourced from http://theinstructionlimit.com/author/renaudbedardrenaudbedard/page/3
+   // Note that you may use ImFontAtlas::GlyphRangesBuilder to create your own ranges, by merging existing ranges or adding new characters.
+   static const short offsets_from_0x4E00[] =
+   {
+      -1,0,1,3,0,0,0,0,1,0,5,1,1,0,7,4,6,10,0,1,9,9,7,1,3,19,1,10,7,1,0,1,0,5,1,0,6,4,2,6,0,0,12,6,8,0,3,5,0,1,0,9,0,0,8,1,1,3,4,5,13,0,0,8,2,17,
+,3,1,1,9,6,0,0,0,2,1,3,2,22,1,9,11,1,13,1,3,12,0,5,9,2,0,6,12,5,3,12,4,1,2,16,1,1,4,6,5,3,0,6,13,15,5,12,8,14,0,0,6,15,3,6,0,18,8,1,6,14,1,
+,4,12,24,3,13,12,10,24,0,0,0,1,0,1,1,2,9,10,2,2,0,0,3,3,1,0,3,8,0,3,2,4,4,1,6,11,10,14,6,15,3,4,15,1,0,0,5,2,2,0,0,1,6,5,5,6,0,3,6,5,0,0,1,0,
+,2,2,8,4,7,0,10,0,1,2,17,19,3,0,2,5,0,6,2,4,4,6,1,1,11,2,0,3,1,2,1,2,10,7,6,3,16,0,8,24,0,0,3,1,1,3,0,1,6,0,0,0,2,0,1,5,15,0,1,0,0,2,11,19,
+,4,19,7,6,5,1,0,0,0,0,5,1,0,1,9,0,0,5,0,2,0,1,0,3,0,11,3,0,2,0,0,0,0,0,9,3,6,4,12,0,14,0,0,29,10,8,0,14,37,13,0,31,16,19,0,8,30,1,20,8,3,48,
+,1,0,12,0,10,44,34,42,54,11,18,82,0,2,1,2,12,1,0,6,2,17,2,12,7,0,7,17,4,2,6,24,23,8,23,39,2,16,23,1,0,5,1,2,15,14,5,6,2,11,0,8,6,2,2,2,14,
+,4,15,3,4,11,10,10,2,5,2,1,30,2,1,0,0,22,5,5,0,3,1,5,4,1,0,0,2,2,21,1,5,1,2,16,2,1,3,4,0,8,4,0,0,5,14,11,2,16,1,13,1,7,0,22,15,3,1,22,7,14,
+,19,11,24,18,46,10,20,64,45,3,2,0,4,5,0,1,4,25,1,0,0,2,10,0,0,0,1,0,1,2,0,0,9,1,2,0,0,0,2,5,2,1,1,5,5,8,1,1,1,5,1,4,9,1,3,0,1,0,1,1,2,0,0,
+,0,1,8,22,8,1,0,0,0,0,4,2,1,0,9,8,5,0,9,1,30,24,2,6,4,39,0,14,5,16,6,26,179,0,2,1,1,0,0,0,5,2,9,6,0,2,5,16,7,5,1,1,0,2,4,4,7,15,13,14,0,0,
+,0,1,0,0,0,2,1,6,4,5,1,4,9,0,3,1,8,0,0,10,5,0,43,0,2,6,8,4,0,2,0,0,9,6,0,9,3,1,6,20,14,6,1,4,0,7,2,3,0,2,0,5,0,3,1,0,3,9,7,0,3,4,0,4,9,1,6,0,
+,0,0,2,3,10,9,28,3,6,2,4,1,2,32,4,1,18,2,0,3,1,5,30,10,0,2,2,2,0,7,9,8,11,10,11,7,2,13,7,5,10,0,3,40,2,0,1,6,12,0,4,5,1,5,11,11,21,4,8,3,7,
+,8,33,5,23,0,0,19,8,8,2,3,0,6,1,1,1,5,1,27,4,2,5,0,3,5,6,3,1,0,3,1,12,5,3,3,2,0,7,7,2,1,0,4,0,1,1,2,0,10,10,6,2,5,9,7,5,15,15,21,6,11,5,20,
+,3,5,5,2,5,0,2,1,0,1,7,28,0,9,0,5,12,5,5,18,30,0,12,3,3,21,16,25,32,9,3,14,11,24,5,66,9,1,2,0,5,9,1,5,1,8,0,8,3,3,0,1,15,1,4,8,1,2,7,0,7,2,
+,3,7,5,3,7,10,2,1,0,0,2,25,0,6,4,0,10,0,4,2,4,1,12,5,38,4,0,4,1,10,5,9,4,0,14,4,2,5,18,20,21,1,3,0,5,0,7,0,3,7,1,3,1,1,8,1,0,0,0,3,2,5,2,11,
+,0,13,1,3,9,1,12,0,16,6,2,1,0,2,1,12,6,13,11,2,0,28,1,7,8,14,13,8,13,0,2,0,5,4,8,10,2,37,42,19,6,6,7,4,14,11,18,14,80,7,6,0,4,72,12,36,27,
+,7,0,14,17,19,164,27,0,5,10,7,3,13,6,14,0,2,2,5,3,0,6,13,0,0,10,29,0,4,0,3,13,0,3,1,6,51,1,5,28,2,0,8,0,20,2,4,0,25,2,10,13,10,0,16,4,0,1,0,
+,1,7,0,1,8,11,0,0,1,2,7,2,23,11,6,6,4,16,2,2,2,0,22,9,3,3,5,2,0,15,16,21,2,9,20,15,15,5,3,9,1,0,0,1,7,7,5,4,2,2,2,38,24,14,0,0,15,5,6,24,14,
+,5,11,0,21,12,0,3,8,4,11,1,8,0,11,27,7,2,4,9,21,59,0,1,39,3,60,62,3,0,12,11,0,3,30,11,0,13,88,4,15,5,28,13,1,4,48,17,17,4,28,32,46,0,16,0,
+,11,1,8,6,38,11,2,6,11,38,2,0,45,3,11,2,7,8,4,30,14,17,2,1,1,65,18,12,16,4,2,45,123,12,56,33,1,4,3,4,7,0,0,0,3,2,0,16,4,2,4,2,0,7,4,5,2,26,
+,25,6,11,6,1,16,2,6,17,77,15,3,35,0,1,0,5,1,0,38,16,6,3,12,3,3,3,0,9,3,1,3,5,2,9,0,18,0,25,1,3,32,1,72,46,6,2,7,1,3,14,17,0,28,1,40,13,0,20,
+,40,6,38,24,12,43,1,1,9,0,12,6,0,6,2,4,19,3,7,1,48,0,9,5,0,5,6,9,6,10,15,2,11,19,3,9,2,0,1,10,1,27,8,1,3,6,1,14,0,26,0,27,16,3,4,9,6,2,23,
+,10,5,25,2,1,6,1,1,48,15,9,15,14,3,4,26,60,29,13,37,21,1,6,4,0,2,11,22,23,16,16,2,2,1,3,0,5,1,6,4,0,0,4,0,0,8,3,0,2,5,0,7,1,7,3,13,2,4,10,
+,0,2,31,0,18,3,0,12,10,4,1,0,7,5,7,0,5,4,12,2,22,10,4,2,15,2,8,9,0,23,2,197,51,3,1,1,4,13,4,3,21,4,19,3,10,5,40,0,4,1,1,10,4,1,27,34,7,21,
+,17,2,9,6,4,2,3,0,4,2,7,8,2,5,1,15,21,3,4,4,2,2,17,22,1,5,22,4,26,7,0,32,1,11,42,15,4,1,2,5,0,19,3,1,8,6,0,10,1,9,2,13,30,8,2,24,17,19,1,4,
+,25,13,0,10,16,11,39,18,8,5,30,82,1,6,8,18,77,11,13,20,75,11,112,78,33,3,0,0,60,17,84,9,1,1,12,30,10,49,5,32,158,178,5,5,6,3,3,1,3,1,4,7,6,
+,31,21,0,2,9,5,6,27,4,9,8,1,76,18,12,1,4,0,3,3,6,3,12,2,8,30,16,2,25,1,5,5,4,3,0,6,10,2,3,1,0,5,1,19,3,0,8,1,5,2,6,0,0,0,19,1,2,0,5,1,2,5,
+,3,7,0,4,12,7,3,10,22,0,9,5,1,0,2,20,1,1,3,23,30,3,9,9,1,4,191,14,3,15,6,8,50,0,1,0,0,4,0,0,1,0,2,4,2,0,2,3,0,2,0,2,2,8,7,0,1,1,1,3,3,17,11,
+,1,9,3,2,13,4,24,15,41,3,13,3,1,20,4,125,29,30,1,0,4,12,2,21,4,5,5,19,11,0,13,11,86,2,18,0,7,1,8,8,2,2,22,1,2,6,5,2,0,1,2,8,0,2,0,5,2,1,0,
+,10,2,0,5,9,2,1,2,0,1,0,4,0,0,10,2,5,3,0,6,1,0,1,4,4,33,3,13,17,3,18,6,4,7,1,5,78,0,4,1,13,7,1,8,1,0,35,27,15,3,0,0,0,1,11,5,41,38,15,22,6,
+,14,2,1,11,6,20,63,5,8,27,7,11,2,2,40,58,23,50,54,56,293,8,8,1,5,1,14,0,1,12,37,89,8,8,8,2,10,6,0,0,0,4,5,2,1,0,1,1,2,7,0,3,3,0,4,6,0,3,2,
+,3,8,0,0,0,4,4,16,0,4,1,5,1,3,0,3,4,6,2,17,10,10,31,6,4,3,6,10,126,7,3,2,2,0,9,0,0,5,20,13,0,15,0,6,0,2,5,8,64,50,3,2,12,2,9,0,0,11,8,20,
+,2,18,23,0,0,9,61,3,0,28,41,77,27,19,17,81,5,2,14,5,83,57,252,14,154,263,14,20,8,13,6,57,39,38,
+   };
+   static ImWchar base_ranges[] =
+   {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+x3000, 0x30FF, // Punctuations, Hiragana, Katakana
+x31F0, 0x31FF, // Katakana Phonetic Extensions
+xFF00, 0xFFEF, // Half-width characters
+   };
+   static bool full_ranges_unpacked = false;
+   static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(offsets_from_0x4E00) * 2 + 1];
+   if (!full_ranges_unpacked)
+   {
+      // Unpack
+      int codepoint = 0x4e00;
+      memcpy(full_ranges, base_ranges, sizeof(base_ranges));
+      ImWchar* dst = full_ranges + IM_ARRAYSIZE(base_ranges);
+      for (int n = 0; n < IM_ARRAYSIZE(offsets_from_0x4E00); n++, dst += 2)
+         dst[0] = dst[1] = (ImWchar)(codepoint += (offsets_from_0x4E00[n] + 1));
+      dst[0] = 0;
+      full_ranges_unpacked = true;
+   }
+   return &full_ranges[0];
+    // 1946 common ideograms code points for Japanese
+    // Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering
+    // FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this.
+    // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
+    // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
+    static const short accumulative_offsets_from_0x4E00[] =
+    {
+,1,2,4,1,1,1,1,2,1,6,2,2,1,8,5,7,11,1,2,10,10,8,2,4,20,2,11,8,2,1,2,1,6,2,1,7,5,3,7,1,1,13,7,9,1,4,6,1,2,1,10,1,1,9,2,2,4,5,6,14,1,1,9,3,18,
+,4,2,2,10,7,1,1,1,3,2,4,3,23,2,10,12,2,14,2,4,13,1,6,10,3,1,7,13,6,4,13,5,2,3,17,2,2,5,7,6,4,1,7,14,16,6,13,9,15,1,1,7,16,4,7,1,19,9,2,7,15,
+,6,5,13,25,4,14,13,11,25,1,1,1,2,1,2,2,3,10,11,3,3,1,1,4,4,2,1,4,9,1,4,3,5,5,2,7,12,11,15,7,16,4,5,16,2,1,1,6,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,
+,1,12,3,3,9,5,8,1,11,1,2,3,18,20,4,1,3,6,1,7,3,5,5,7,2,2,12,3,1,4,2,3,2,3,11,8,7,4,17,1,9,25,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,6,16,1,2,1,1,3,12,
+,2,5,20,8,7,6,2,1,1,1,1,6,2,1,2,10,1,1,6,1,3,1,2,1,4,1,12,4,1,3,1,1,1,1,1,10,4,7,5,13,1,15,1,1,30,11,9,1,15,38,14,1,32,17,20,1,9,31,2,21,9,
+,49,22,2,1,13,1,11,45,35,43,55,12,19,83,1,3,2,3,13,2,1,7,3,18,3,13,8,1,8,18,5,3,7,25,24,9,24,40,3,17,24,2,1,6,2,3,16,15,6,7,3,12,1,9,7,3,3,
+,15,21,5,16,4,5,12,11,11,3,6,3,2,31,3,2,1,1,23,6,6,1,4,2,6,5,2,1,1,3,3,22,2,6,2,3,17,3,2,4,5,1,9,5,1,1,6,15,12,3,17,2,14,2,8,1,23,16,4,2,23,
+,15,23,20,12,25,19,47,11,21,65,46,4,3,1,5,6,1,2,5,26,2,1,1,3,11,1,1,1,2,1,2,3,1,1,10,2,3,1,1,1,3,6,3,2,2,6,6,9,2,2,2,6,2,5,10,2,4,1,2,1,2,2,
+,1,1,3,1,2,9,23,9,2,1,1,1,1,5,3,2,1,10,9,6,1,10,2,31,25,3,7,5,40,1,15,6,17,7,27,180,1,3,2,2,1,1,1,6,3,10,7,1,3,6,17,8,6,2,2,1,3,5,5,8,16,14,
+,1,1,4,1,2,1,1,1,3,2,7,5,6,2,5,10,1,4,2,9,1,1,11,6,1,44,1,3,7,9,5,1,3,1,1,10,7,1,10,4,2,7,21,15,7,2,5,1,8,3,4,1,3,1,6,1,4,2,1,4,10,8,1,4,5,
+,5,10,2,7,1,10,1,1,3,4,11,10,29,4,7,3,5,2,3,33,5,2,19,3,1,4,2,6,31,11,1,3,3,3,1,8,10,9,12,11,12,8,3,14,8,6,11,1,4,41,3,1,2,7,13,1,5,6,2,6,12,
+,22,5,9,4,8,9,9,34,6,24,1,1,20,9,9,3,4,1,7,2,2,2,6,2,28,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,8,8,3,2,1,5,1,2,2,3,1,11,11,7,3,6,10,8,6,16,16,
+,7,12,6,21,5,4,6,6,3,6,1,3,2,1,2,8,29,1,10,1,6,13,6,6,19,31,1,13,4,4,22,17,26,33,10,4,15,12,25,6,67,10,2,3,1,6,10,2,6,2,9,1,9,4,4,1,2,16,2,
+,9,2,3,8,1,8,3,9,4,8,6,4,8,11,3,2,1,1,3,26,1,7,5,1,11,1,5,3,5,2,13,6,39,5,1,5,2,11,6,10,5,1,15,5,3,6,19,21,22,2,4,1,6,1,8,1,4,8,2,4,2,2,9,2,
+,1,1,4,3,6,3,12,7,1,14,2,4,10,2,13,1,17,7,3,2,1,3,2,13,7,14,12,3,1,29,2,8,9,15,14,9,14,1,3,1,6,5,9,11,3,38,43,20,7,7,8,5,15,12,19,15,81,8,7,
+,5,73,13,37,28,8,8,1,15,18,20,165,28,1,6,11,8,4,14,7,15,1,3,3,6,4,1,7,14,1,1,11,30,1,5,1,4,14,1,4,2,7,52,2,6,29,3,1,9,1,21,3,5,1,26,3,11,14,
+,1,17,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,7,7,5,17,3,3,3,1,23,10,4,4,6,3,1,16,17,22,3,10,21,16,16,6,4,10,2,1,1,2,8,8,6,5,3,3,3,39,25,
+,1,1,16,6,7,25,15,6,6,12,1,22,13,1,4,9,5,12,2,9,1,12,28,8,3,5,10,22,60,1,2,40,4,61,63,4,1,13,12,1,4,31,12,1,14,89,5,16,6,29,14,2,5,49,18,18,
+,29,33,47,1,17,1,19,12,2,9,7,39,12,3,7,12,39,3,1,46,4,12,3,8,9,5,31,15,18,3,2,2,66,19,13,17,5,3,46,124,13,57,34,2,5,4,5,8,1,1,1,4,3,1,17,5,
+,5,3,1,8,5,6,3,27,3,26,7,12,7,2,17,3,7,18,78,16,4,36,1,2,1,6,2,1,39,17,7,4,13,4,4,4,1,10,4,2,4,6,3,10,1,19,1,26,2,4,33,2,73,47,7,3,8,2,4,15,
+,1,29,2,41,14,1,21,16,41,7,39,25,13,44,2,2,10,1,13,7,1,7,3,5,20,4,8,2,49,1,10,6,1,6,7,10,7,11,16,3,12,20,4,10,3,1,2,11,2,28,9,2,4,7,2,15,1,
+,1,28,17,4,5,10,7,3,24,10,11,6,26,3,2,7,2,2,49,16,10,16,15,4,5,27,61,30,14,38,22,2,7,5,1,3,12,23,24,17,17,3,3,2,4,1,6,2,7,5,1,1,5,1,1,9,4,
+,3,6,1,8,2,8,4,14,3,5,11,4,1,3,32,1,19,4,1,13,11,5,2,1,8,6,8,1,6,5,13,3,23,11,5,3,16,3,9,10,1,24,3,198,52,4,2,2,5,14,5,4,22,5,20,4,11,6,41,
+,5,2,2,11,5,2,28,35,8,22,3,18,3,10,7,5,3,4,1,5,3,8,9,3,6,2,16,22,4,5,5,3,3,18,23,2,6,23,5,27,8,1,33,2,12,43,16,5,2,3,6,1,20,4,2,9,7,1,11,2,
+,3,14,31,9,3,25,18,20,2,5,5,26,14,1,11,17,12,40,19,9,6,31,83,2,7,9,19,78,12,14,21,76,12,113,79,34,4,1,1,61,18,85,10,2,2,13,31,11,50,6,33,159,
+,6,6,7,4,4,2,4,2,5,8,7,20,32,22,1,3,10,6,7,28,5,10,9,2,77,19,13,2,5,1,4,4,7,4,13,3,9,31,17,3,26,2,6,6,5,4,1,7,11,3,4,2,1,6,2,20,4,1,9,2,6,
+,7,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,5,13,8,4,11,23,1,10,6,2,1,3,21,2,2,4,24,31,4,10,10,2,5,192,15,4,16,7,9,51,1,2,1,1,5,1,1,2,1,3,5,3,1,3,4,1,
+,1,3,3,9,8,1,2,2,2,4,4,18,12,92,2,10,4,3,14,5,25,16,42,4,14,4,2,21,5,126,30,31,2,1,5,13,3,22,5,6,6,20,12,1,14,12,87,3,19,1,8,2,9,9,3,3,23,2,
+,7,6,3,1,2,3,9,1,3,1,6,3,2,1,3,11,3,1,6,10,3,2,3,1,2,1,5,1,1,11,3,6,4,1,7,2,1,2,5,5,34,4,14,18,4,19,7,5,8,2,6,79,1,5,2,14,8,2,9,2,1,36,28,16,
+,1,1,1,2,12,6,42,39,16,23,7,15,15,3,2,12,7,21,64,6,9,28,8,12,3,3,41,59,24,51,55,57,294,9,9,2,6,2,15,1,2,13,38,90,9,9,9,3,11,7,1,1,1,5,6,3,2,
+,2,2,3,8,1,4,4,1,5,7,1,4,3,20,4,9,1,1,1,5,5,17,1,5,2,6,2,4,1,4,5,7,3,18,11,11,32,7,5,4,7,11,127,8,4,3,3,1,10,1,1,6,21,14,1,16,1,7,1,3,6,9,65,
+,4,3,13,3,10,1,1,12,9,21,110,3,19,24,1,1,10,62,4,1,29,42,78,28,20,18,82,6,3,15,6,84,58,253,15,155,264,15,21,9,14,7,58,40,39,
+    };
+    static ImWchar base_ranges[] = // not zero-terminated
+    {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
+x31F0, 0x31FF, // Katakana Phonetic Extensions
+xFF00, 0xFFEF  // Half-width characters
+    };
+    static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
+    if (!full_ranges[0])
+    {
+        memcpy(full_ranges, base_ranges, sizeof(base_ranges));
+        UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
+    }
+    return &full_ranges[0];
+}
 const ImWchar*  ImFontAtlas::GetGlyphRangesCyrillic()
+{
    static const ImWchar ranges[] =
+   {
 x0020, 0x00FF, // Basic Latin + Latin Supplement
 x0400, 0x052F, // Cyrillic + Cyrillic Supplement
 x2DE0, 0x2DFF, // Cyrillic Extended-A
 xA640, 0xA69F, // Cyrillic Extended-B
 ,
    };
    return &ranges[0];
+    static const ImWchar ranges[] =
+    {
+x0020, 0x00FF, // Basic Latin + Latin Supplement
+x0400, 0x052F, // Cyrillic + Cyrillic Supplement
+x2DE0, 0x2DFF, // Cyrillic Extended-A
+xA640, 0xA69F, // Cyrillic Extended-B
+,
+    };
+    return &ranges[0];
+}
 const ImWchar*  ImFontAtlas::GetGlyphRangesThai()
+{
+   static const ImWchar ranges[] =
+   {
+x0020, 0x00FF, // Basic Latin
+x2010, 0x205E, // Punctuations
+x0E00, 0x0E7F, // Thai
+,
+   };
+   return &ranges[0];
+    static const ImWchar ranges[] =
+    {
+x0020, 0x00FF, // Basic Latin
+x2010, 0x205E, // Punctuations
+x0E00, 0x0E7F, // Thai
+,
+    };
+    return &ranges[0];
+}
+const ImWchar*  ImFontAtlas::GetGlyphRangesVietnamese()
+{
+    static const ImWchar ranges[] =
+    {
+x0020, 0x00FF, // Basic Latin
+x0102, 0x0103,
+x0110, 0x0111,
+x0128, 0x0129,
+x0168, 0x0169,
+x01A0, 0x01A1,
+x01AF, 0x01B0,
+x1EA0, 0x1EF9,
+,
+    };
+    return &ranges[0];
+}
 //-----------------------------------------------------------------------------
 // ImFontAtlas::GlyphRangesBuilder
+// [SECTION] ImFontGlyphRangesBuilder
 //-----------------------------------------------------------------------------
 void ImFontAtlas::GlyphRangesBuilder::AddText(const char* text, const char* text_end)
+{
    while (text_end ? (text < text_end) : *text)
+   {
       unsigned int c = 0;
       int c_len = ImTextCharFromUtf8(&c, text, text_end);
       text += c_len;
       if (c_len == 0)
          break;
       if (c < 0x10000)
          AddChar((ImWchar)c);
+   }
+}
+void ImFontAtlas::GlyphRangesBuilder::AddRanges(const ImWchar* ranges)
+{
    for (; ranges[0]; ranges += 2)
       for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
+         AddChar(c);
+}
+void ImFontAtlas::GlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
+{
    for (int n = 0; n < 0x10000; n++)
       if (GetBit(n))
+      {
          out_ranges->push_back((ImWchar)n);
          while (n < 0x10000 && GetBit(n + 1))
             n++;
          out_ranges->push_back((ImWchar)n);
+      }
    out_ranges->push_back(0);
+void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
+{
+    while (text_end ? (text < text_end) : *text)
+    {
+        unsigned int c = 0;
+        int c_len = ImTextCharFromUtf8(&c, text, text_end);
+        text += c_len;
+        if (c_len == 0)
+            break;
+        AddChar((ImWchar)c);
+    }
+}
+void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
+{
+    for (; ranges[0]; ranges += 2)
+        for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
+            AddChar(c);
+}
+void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
+{
+    const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
+    for (int n = 0; n <= max_codepoint; n++)
+        if (GetBit(n))
+        {
+            out_ranges->push_back((ImWchar)n);
+            while (n < max_codepoint && GetBit(n + 1))
+                n++;
+            out_ranges->push_back((ImWchar)n);
+        }
+    out_ranges->push_back(0);
+}
 //-----------------------------------------------------------------------------
 // ImFont
+// [SECTION] ImFont
 //-----------------------------------------------------------------------------
 ImFont::ImFont()
+{
+   Scale = 1.0f;
+   FallbackChar = (ImWchar)'?';
+   DisplayOffset = ImVec2(0.0f, 0.0f);
+   ClearOutputData();
+    FontSize = 0.0f;
+    FallbackAdvanceX = 0.0f;
+    FallbackChar = (ImWchar)'?';
+    EllipsisChar = (ImWchar)-1;
+    FallbackGlyph = NULL;
+    ContainerAtlas = NULL;
+    ConfigData = NULL;
+    ConfigDataCount = 0;
+    DirtyLookupTables = false;
+    Scale = 1.0f;
+    Ascent = Descent = 0.0f;
+    MetricsTotalSurface = 0;
+    memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
+}
 ImFont::~ImFont()
+{
+   // Invalidate active font so that the user gets a clear crash instead of a dangling pointer.
+   // If you want to delete fonts you need to do it between Render() and NewFrame().
+   // FIXME-CLEANUP
+   /*
+   ImGuiContext& g = *GImGui;
+   if (g.Font == this)
+   g.Font = NULL;
+   */
+   ClearOutputData();
+    ClearOutputData();
+}
 void    ImFont::ClearOutputData()
+{
+   FontSize = 0.0f;
+   Glyphs.clear();
+   IndexAdvanceX.clear();
+   IndexLookup.clear();
+   FallbackGlyph = NULL;
+   FallbackAdvanceX = 0.0f;
+   ConfigDataCount = 0;
+   ConfigData = NULL;
+   ContainerAtlas = NULL;
+   Ascent = Descent = 0.0f;
+   DirtyLookupTables = true;
+   MetricsTotalSurface = 0;
+    FontSize = 0.0f;
+    FallbackAdvanceX = 0.0f;
+    Glyphs.clear();
+    IndexAdvanceX.clear();
+    IndexLookup.clear();
+    FallbackGlyph = NULL;
+    ContainerAtlas = NULL;
+    DirtyLookupTables = true;
+    Ascent = Descent = 0.0f;
+    MetricsTotalSurface = 0;
+}
 void ImFont::BuildLookupTable()
+{
+   int max_codepoint = 0;
+   for (int i = 0; i != Glyphs.Size; i++)
+      max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
+   IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
+   IndexAdvanceX.clear();
+   IndexLookup.clear();
+   DirtyLookupTables = false;
+   GrowIndex(max_codepoint + 1);
+   for (int i = 0; i < Glyphs.Size; i++)
+   {
+      int codepoint = (int)Glyphs[i].Codepoint;
+      IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
+      IndexLookup[codepoint] = (unsigned short)i;
+   }
+   // Create a glyph to handle TAB
+   // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
+   if (FindGlyph((unsigned short)' '))
+   {
+      if (Glyphs.back().Codepoint != '\t')   // So we can call this function multiple times
+         Glyphs.resize(Glyphs.Size + 1);
+      ImFontGlyph& tab_glyph = Glyphs.back();
+      tab_glyph = *FindGlyph((unsigned short)' ');
+      tab_glyph.Codepoint = '\t';
+      tab_glyph.AdvanceX *= 4;
+      IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
+      IndexLookup[(int)tab_glyph.Codepoint] = (unsigned short)(Glyphs.Size - 1);
+   }
+   FallbackGlyph = FindGlyphNoFallback(FallbackChar);
+   FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
+   for (int i = 0; i < max_codepoint + 1; i++)
+      if (IndexAdvanceX[i] < 0.0f)
+         IndexAdvanceX[i] = FallbackAdvanceX;
+    int max_codepoint = 0;
+    for (int i = 0; i != Glyphs.Size; i++)
+        max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
+    // Build lookup table
+    IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
+    IndexAdvanceX.clear();
+    IndexLookup.clear();
+    DirtyLookupTables = false;
+    memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
+    GrowIndex(max_codepoint + 1);
+    for (int i = 0; i < Glyphs.Size; i++)
+    {
+        int codepoint = (int)Glyphs[i].Codepoint;
+        IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
+        IndexLookup[codepoint] = (ImWchar)i;
+        // Mark 4K page as used
+        const int page_n = codepoint / 4096;
+        Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
+    }
+    // Create a glyph to handle TAB
+    // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
+    if (FindGlyph((ImWchar)' '))
+    {
+        if (Glyphs.back().Codepoint != '\t')   // So we can call this function multiple times (FIXME: Flaky)
+            Glyphs.resize(Glyphs.Size + 1);
+        ImFontGlyph& tab_glyph = Glyphs.back();
+        tab_glyph = *FindGlyph((ImWchar)' ');
+        tab_glyph.Codepoint = '\t';
+        tab_glyph.AdvanceX *= IM_TABSIZE;
+        IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
+        IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
+    }
+    // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
+    SetGlyphVisible((ImWchar)' ', false);
+    SetGlyphVisible((ImWchar)'\t', false);
+    // Setup fall-backs
+    FallbackGlyph = FindGlyphNoFallback(FallbackChar);
+    FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
+    for (int i = 0; i < max_codepoint + 1; i++)
+        if (IndexAdvanceX[i] < 0.0f)
+            IndexAdvanceX[i] = FallbackAdvanceX;
+}
+// API is designed this way to avoid exposing the 4K page size
+// e.g. use with IsGlyphRangeUnused(0, 255)
+bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
+{
+    unsigned int page_begin = (c_begin / 4096);
+    unsigned int page_last = (c_last / 4096);
+    for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
+        if ((page_n >> 3) < sizeof(Used4kPagesMap))
+            if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
+                return false;
+    return true;
+}
+void ImFont::SetGlyphVisible(ImWchar c, bool visible)
+{
+    if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
+        glyph->Visible = visible ? 1 : 0;
+}
 void ImFont::SetFallbackChar(ImWchar c)
+{
    FallbackChar = c;
    BuildLookupTable();
+    FallbackChar = c;
+    BuildLookupTable();
+}
 void ImFont::GrowIndex(int new_size)
+{
+   IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
+   if (new_size <= IndexLookup.Size)
+      return;
+   IndexAdvanceX.resize(new_size, -1.0f);
+   IndexLookup.resize(new_size, (unsigned short)-1);
+}
+void ImFont::AddGlyph(ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
+{
+   Glyphs.resize(Glyphs.Size + 1);
+   ImFontGlyph& glyph = Glyphs.back();
+   glyph.Codepoint = (ImWchar)codepoint;
+   glyph.X0 = x0;
+   glyph.Y0 = y0;
+   glyph.X1 = x1;
+   glyph.Y1 = y1;
+   glyph.U0 = u0;
+   glyph.V0 = v0;
+   glyph.U1 = u1;
+   glyph.V1 = v1;
+   glyph.AdvanceX = advance_x + ConfigData->GlyphExtraSpacing.x;  // Bake spacing into AdvanceX
+   if (ConfigData->PixelSnapH)
+      glyph.AdvanceX = (float)(int)(glyph.AdvanceX + 0.5f);
+   // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
+   DirtyLookupTables = true;
+   MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + 1.99f) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + 1.99f);
+    IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
+    if (new_size <= IndexLookup.Size)
+        return;
+    IndexAdvanceX.resize(new_size, -1.0f);
+    IndexLookup.resize(new_size, (ImWchar)-1);
+}
+// x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
+// Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis).
+// 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font.
+void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
+{
+    if (cfg != NULL)
+    {
+        // Clamp & recenter if needed
+        const float advance_x_original = advance_x;
+        advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
+        if (advance_x != advance_x_original)
+        {
+            float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
+            x0 += char_off_x;
+            x1 += char_off_x;
+        }
+        // Snap to pixel
+        if (cfg->PixelSnapH)
+            advance_x = IM_ROUND(advance_x);
+        // Bake spacing
+        advance_x += cfg->GlyphExtraSpacing.x;
+    }
+    Glyphs.resize(Glyphs.Size + 1);
+    ImFontGlyph& glyph = Glyphs.back();
+    glyph.Codepoint = (unsigned int)codepoint;
+    glyph.Visible = (x0 != x1) && (y0 != y1);
+    glyph.X0 = x0;
+    glyph.Y0 = y0;
+    glyph.X1 = x1;
+    glyph.Y1 = y1;
+    glyph.U0 = u0;
+    glyph.V0 = v0;
+    glyph.U1 = u1;
+    glyph.V1 = v1;
+    glyph.AdvanceX = advance_x;
+    // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
+    // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
+    float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
+    DirtyLookupTables = true;
+    MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
+}
 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
+{
    IM_ASSERT(IndexLookup.Size > 0);    // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
    int index_size = IndexLookup.Size;
    if (dst < index_size && IndexLookup.Data[dst] == (unsigned short)-1 && !overwrite_dst) // 'dst' already exists
       return;
    if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
       return;
    GrowIndex(dst + 1);
    IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (unsigned short)-1;
    IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
+    IM_ASSERT(IndexLookup.Size > 0);    // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
+    unsigned int index_size = (unsigned int)IndexLookup.Size;
+    if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
+        return;
+    if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
+        return;
+    GrowIndex(dst + 1);
+    IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
+    IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
+}
 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
+{
    if (c >= IndexLookup.Size)
       return FallbackGlyph;
    const unsigned short i = IndexLookup[c];
    if (i == (unsigned short)-1)
       return FallbackGlyph;
    return &Glyphs.Data[i];
+    if (c >= (size_t)IndexLookup.Size)
+        return FallbackGlyph;
+    const ImWchar i = IndexLookup.Data[c];
+    if (i == (ImWchar)-1)
+        return FallbackGlyph;
+    return &Glyphs.Data[i];
+}
 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
+{
    if (c >= IndexLookup.Size)
       return NULL;
    const unsigned short i = IndexLookup[c];
    if (i == (unsigned short)-1)
       return NULL;
    return &Glyphs.Data[i];
+    if (c >= (size_t)IndexLookup.Size)
+        return NULL;
+    const ImWchar i = IndexLookup.Data[c];
+    if (i == (ImWchar)-1)
+        return NULL;
+    return &Glyphs.Data[i];
+}
 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
+{
+   // Simple word-wrapping for English, not full-featured. Please submit failing cases!
+   // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
+   // For references, possible wrap point marked with ^
+   //  "aaa bbb, ccc,ddd. eee   fff. ggg!"
+   //      ^    ^    ^   ^   ^__    ^    ^
+   // List of hardcoded separators: .,;!?'"
+   // Skip extra blanks after a line returns (that includes not counting them in width computation)
+   // e.g. "Hello    world" --> "Hello" "World"
+   // Cut words that cannot possibly fit within one line.
+   // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
+   float line_width = 0.0f;
+   float word_width = 0.0f;
+   float blank_width = 0.0f;
+   wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
+   const char* word_end = text;
+   const char* prev_word_end = NULL;
+   bool inside_word = true;
+   const char* s = text;
+   while (s < text_end)
+   {
+      unsigned int c = (unsigned int)*s;
+      const char* next_s;
+      if (c < 0x80)
+         next_s = s + 1;
+      else
+         next_s = s + ImTextCharFromUtf8(&c, s, text_end);
+      if (c == 0)
+         break;
+      if (c < 32)
+      {
+         if (c == '\n')
+         {
+            line_width = word_width = blank_width = 0.0f;
+            inside_word = true;
+            s = next_s;
+    // Simple word-wrapping for English, not full-featured. Please submit failing cases!
+    // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
+    // For references, possible wrap point marked with ^
+    //  "aaa bbb, ccc,ddd. eee   fff. ggg!"
+    //      ^    ^    ^   ^   ^__    ^    ^
+    // List of hardcoded separators: .,;!?'"
+    // Skip extra blanks after a line returns (that includes not counting them in width computation)
+    // e.g. "Hello    world" --> "Hello" "World"
+    // Cut words that cannot possibly fit within one line.
+    // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
+    float line_width = 0.0f;
+    float word_width = 0.0f;
+    float blank_width = 0.0f;
+    wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
+    const char* word_end = text;
+    const char* prev_word_end = NULL;
+    bool inside_word = true;
+    const char* s = text;
+    while (s < text_end)
+    {
+        unsigned int c = (unsigned int)*s;
+        const char* next_s;
+        if (c < 0x80)
+            next_s = s + 1;
+        else
+            next_s = s + ImTextCharFromUtf8(&c, s, text_end);
+        if (c == 0)
+            break;
+        if (c < 32)
+        {
+            if (c == '\n')
+            {
+                line_width = word_width = blank_width = 0.0f;
+                inside_word = true;
+                s = next_s;
+                continue;
+            }
+            if (c == '\r')
+            {
+                s = next_s;
+                continue;
+            }
+        }
+        const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
+        if (ImCharIsBlankW(c))
+        {
+            if (inside_word)
+            {
+                line_width += blank_width;
+                blank_width = 0.0f;
+                word_end = s;
+            }
+            blank_width += char_width;
+            inside_word = false;
+        }
+        else
+        {
+            word_width += char_width;
+            if (inside_word)
+            {
+                word_end = next_s;
+            }
+            else
+            {
+                prev_word_end = word_end;
+                line_width += word_width + blank_width;
+                word_width = blank_width = 0.0f;
+            }
+            // Allow wrapping after punctuation.
+            inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
+        }
+        // We ignore blank width at the end of the line (they can be skipped)
+        if (line_width + word_width > wrap_width)
+        {
+            // Words that cannot possibly fit within an entire line will be cut anywhere.
+            if (word_width < wrap_width)
+                s = prev_word_end ? prev_word_end : word_end;
+            break;
+        }
+        s = next_s;
+    }
+    return s;
+}
+ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
+{
+    if (!text_end)
+        text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
+    const float line_height = size;
+    const float scale = size / FontSize;
+    ImVec2 text_size = ImVec2(0, 0);
+    float line_width = 0.0f;
+    const bool word_wrap_enabled = (wrap_width > 0.0f);
+    const char* word_wrap_eol = NULL;
+    const char* s = text_begin;
+    while (s < text_end)
+    {
+        if (word_wrap_enabled)
+        {
+            // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
+            if (!word_wrap_eol)
+            {
+                word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
+                if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
+                    word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
+            }
+            if (s >= word_wrap_eol)
+            {
+                if (text_size.x < line_width)
+                    text_size.x = line_width;
+                text_size.y += line_height;
+                line_width = 0.0f;
+                word_wrap_eol = NULL;
+                // Wrapping skips upcoming blanks
+                while (s < text_end)
+                {
+                    const char c = *s;
+                    if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
+                }
+                continue;
+            }
+        }
+        // Decode and advance source
+        const char* prev_s = s;
+        unsigned int c = (unsigned int)*s;
+        if (c < 0x80)
+        {
+            s += 1;
+        }
+        else
+        {
+            s += ImTextCharFromUtf8(&c, s, text_end);
+            if (c == 0) // Malformed UTF-8?
+                break;
+        }
+        if (c < 32)
+        {
+            if (c == '\n')
+            {
+                text_size.x = ImMax(text_size.x, line_width);
+                text_size.y += line_height;
+                line_width = 0.0f;
+                continue;
+            }
+            if (c == '\r')
+                continue;
+        }
+        const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
+        if (line_width + char_width >= max_width)
+        {
+            s = prev_s;
+            break;
+        }
+        line_width += char_width;
+    }
+    if (text_size.x < line_width)
+        text_size.x = line_width;
+    if (line_width > 0 || text_size.y == 0.0f)
+        text_size.y += line_height;
+    if (remaining)
+        *remaining = s;
+    return text_size;
+}
+void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
+{
+    const ImFontGlyph* glyph = FindGlyph(c);
+    if (!glyph || !glyph->Visible)
+        return;
+    float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
+    pos.x = IM_FLOOR(pos.x);
+    pos.y = IM_FLOOR(pos.y);
+    draw_list->PrimReserve(6, 4);
+    draw_list->PrimRectUV(ImVec2(pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale), ImVec2(pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
+}
+void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
+{
+    if (!text_end)
+        text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
+    // Align to be pixel perfect
+    pos.x = IM_FLOOR(pos.x);
+    pos.y = IM_FLOOR(pos.y);
+    float x = pos.x;
+    float y = pos.y;
+    if (y > clip_rect.w)
+        return;
+    const float scale = size / FontSize;
+    const float line_height = FontSize * scale;
+    const bool word_wrap_enabled = (wrap_width > 0.0f);
+    const char* word_wrap_eol = NULL;
+    // Fast-forward to first visible line
+    const char* s = text_begin;
+    if (y + line_height < clip_rect.y && !word_wrap_enabled)
+        while (y + line_height < clip_rect.y && s < text_end)
+        {
+            s = (const char*)memchr(s, '\n', text_end - s);
+            s = s ? s + 1 : text_end;
+            y += line_height;
+        }
+    // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
+    // Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm)
+    if (text_end - s > 10000 && !word_wrap_enabled)
+    {
+        const char* s_end = s;
+        float y_end = y;
+        while (y_end < clip_rect.w && s_end < text_end)
+        {
+            s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
+            s_end = s_end ? s_end + 1 : text_end;
+            y_end += line_height;
+        }
+        text_end = s_end;
+    }
+    if (s == text_end)
+        return;
+    // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
+    const int vtx_count_max = (int)(text_end - s) * 4;
+    const int idx_count_max = (int)(text_end - s) * 6;
+    const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
+    draw_list->PrimReserve(idx_count_max, vtx_count_max);
+    ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
+    ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
+    unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
+    while (s < text_end)
+    {
+        if (word_wrap_enabled)
+        {
+            // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
+            if (!word_wrap_eol)
+            {
+                word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
+                if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
+                    word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
+            }
+            if (s >= word_wrap_eol)
+            {
+                x = pos.x;
+                y += line_height;
+                word_wrap_eol = NULL;
+                // Wrapping skips upcoming blanks
+                while (s < text_end)
+                {
+                    const char c = *s;
+                    if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
+                }
+                continue;
+            }
+        }
+        // Decode and advance source
+        unsigned int c = (unsigned int)*s;
+        if (c < 0x80)
+        {
+            s += 1;
+        }
+        else
+        {
+            s += ImTextCharFromUtf8(&c, s, text_end);
+            if (c == 0) // Malformed UTF-8?
+                break;
+        }
+        if (c < 32)
+        {
+            if (c == '\n')
+            {
+                x = pos.x;
+                y += line_height;
+                if (y > clip_rect.w)
+                    break; // break out of main loop
+                continue;
+            }
+            if (c == '\r')
+                continue;
+        }
+        const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
+        if (glyph == NULL)
             continue;
+         }
+         if (c == '\r')
+         {
+            s = next_s;
+            continue;
+         }
+      }
+      const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX[(int)c] : FallbackAdvanceX);
+      if (ImCharIsSpace(c))
+      {
+         if (inside_word)
+         {
+            line_width += blank_width;
+            blank_width = 0.0f;
+            word_end = s;
+         }
+         blank_width += char_width;
+         inside_word = false;
+      }
+      else
+      {
+         word_width += char_width;
+         if (inside_word)
+         {
+            word_end = next_s;
+         }
+         else
+         {
+            prev_word_end = word_end;
+            line_width += word_width + blank_width;
+            word_width = blank_width = 0.0f;
+         }
+         // Allow wrapping after punctuation.
+         inside_word = !(c == '.' || c == ',' || c == ';' || c == '!' || c == '?' || c == '\"');
+      }
+      // We ignore blank width at the end of the line (they can be skipped)
+      if (line_width + word_width >= wrap_width)
+      {
+         // Words that cannot possibly fit within an entire line will be cut anywhere.
+         if (word_width < wrap_width)
+            s = prev_word_end ? prev_word_end : word_end;
+         break;
+      }
+      s = next_s;
+   }
+   return s;
+}
+ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
+{
+   if (!text_end)
+      text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
+   const float line_height = size;
+   const float scale = size / FontSize;
+   ImVec2 text_size = ImVec2(0, 0);
+   float line_width = 0.0f;
+   const bool word_wrap_enabled = (wrap_width > 0.0f);
+   const char* word_wrap_eol = NULL;
+   const char* s = text_begin;
+   while (s < text_end)
+   {
+      if (word_wrap_enabled)
+      {
+         // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
+         if (!word_wrap_eol)
+         {
+            word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
+            if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
+               word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
+         }
+         if (s >= word_wrap_eol)
+         {
+            if (text_size.x < line_width)
+               text_size.x = line_width;
+            text_size.y += line_height;
+            line_width = 0.0f;
+            word_wrap_eol = NULL;
+            // Wrapping skips upcoming blanks
+            while (s < text_end)
+            {
+               const char c = *s;
+               if (ImCharIsSpace((unsigned int)c)) { s++; }
+               else if (c == '\n') { s++; break; }
+               else { break; }
+            }
+            continue;
+         }
+      }
+      // Decode and advance source
+      const char* prev_s = s;
+      unsigned int c = (unsigned int)*s;
+      if (c < 0x80)
+      {
+         s += 1;
+      }
+      else
+      {
+         s += ImTextCharFromUtf8(&c, s, text_end);
+         if (c == 0) // Malformed UTF-8?
+            break;
+      }
+      if (c < 32)
+      {
+         if (c == '\n')
+         {
+            text_size.x = ImMax(text_size.x, line_width);
+            text_size.y += line_height;
+            line_width = 0.0f;
+            continue;
+         }
+         if (c == '\r')
+            continue;
+      }
+      const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX[(int)c] : FallbackAdvanceX) * scale;
+      if (line_width + char_width >= max_width)
+      {
+         s = prev_s;
+         break;
+      }
+      line_width += char_width;
+   }
+   if (text_size.x < line_width)
+      text_size.x = line_width;
+   if (line_width > 0 || text_size.y == 0.0f)
+      text_size.y += line_height;
+   if (remaining)
+      *remaining = s;
+   return text_size;
+}
+void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, unsigned short c) const
+{
+   if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded.
+      return;
+   if (const ImFontGlyph* glyph = FindGlyph(c))
+   {
+      float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
+      pos.x = (float)(int)pos.x + DisplayOffset.x;
+      pos.y = (float)(int)pos.y + DisplayOffset.y;
+      draw_list->PrimReserve(6, 4);
+      draw_list->PrimRectUV(ImVec2(pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale), ImVec2(pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
+   }
+}
+void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
+{
+   if (!text_end)
+      text_end = text_begin + strlen(text_begin); // ImGui functions generally already provides a valid text_end, so this is merely to handle direct calls.
+                                                  // Align to be pixel perfect
+   pos.x = (float)(int)pos.x + DisplayOffset.x;
+   pos.y = (float)(int)pos.y + DisplayOffset.y;
+   float x = pos.x;
+   float y = pos.y;
+   if (y > clip_rect.w)
+      return;
+   const float scale = size / FontSize;
+   const float line_height = FontSize * scale;
+   const bool word_wrap_enabled = (wrap_width > 0.0f);
+   const char* word_wrap_eol = NULL;
+   // Skip non-visible lines
+   const char* s = text_begin;
+   if (!word_wrap_enabled && y + line_height < clip_rect.y)
+      while (s < text_end && *s != '\n')  // Fast-forward to next line
+         s++;
+   // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
+   const int vtx_count_max = (int)(text_end - s) * 4;
+   const int idx_count_max = (int)(text_end - s) * 6;
+   const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
+   draw_list->PrimReserve(idx_count_max, vtx_count_max);
+   ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
+   ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
+   unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
+   while (s < text_end)
+   {
+      if (word_wrap_enabled)
+      {
+         // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
+         if (!word_wrap_eol)
+         {
+            word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
+            if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
+               word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
+         }
+         if (s >= word_wrap_eol)
+         {
+            x = pos.x;
+            y += line_height;
+            word_wrap_eol = NULL;
+            // Wrapping skips upcoming blanks
+            while (s < text_end)
+            {
+               const char c = *s;
+               if (ImCharIsSpace((unsigned int)c)) { s++; }
+               else if (c == '\n') { s++; break; }
+               else { break; }
+            }
+            continue;
+         }
+      }
+      // Decode and advance source
+      unsigned int c = (unsigned int)*s;
+      if (c < 0x80)
+      {
+         s += 1;
+      }
+      else
+      {
+         s += ImTextCharFromUtf8(&c, s, text_end);
+         if (c == 0) // Malformed UTF-8?
+            break;
+      }
+      if (c < 32)
+      {
+         if (c == '\n')
+         {
+            x = pos.x;
+            y += line_height;
+            if (y > clip_rect.w)
+               break;
+            if (!word_wrap_enabled && y + line_height < clip_rect.y)
+               while (s < text_end && *s != '\n')  // Fast-forward to next line
+                  s++;
+            continue;
+         }
+         if (c == '\r')
+            continue;
+      }
+      float char_width = 0.0f;
+      if (const ImFontGlyph* glyph = FindGlyph((unsigned short)c))
+      {
+         char_width = glyph->AdvanceX * scale;
+         // Arbitrarily assume that both space and tabs are empty glyphs as an optimization
+         if (c != ' ' && c != '\t')
+         {
+        float char_width = glyph->AdvanceX * scale;
+        if (glyph->Visible)
+        {
             // We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w
             float x1 = x + glyph->X0 * scale;
 …
             if (x1 <= clip_rect.z && x2 >= clip_rect.x)
+            {
                // Render a character
                float u1 = glyph->U0;
                float v1 = glyph->V0;
                float u2 = glyph->U1;
                float v2 = glyph->V1;
                // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
                if (cpu_fine_clip)
+               {
                   if (x1 < clip_rect.x)
+                  {
                      u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
                      x1 = clip_rect.x;
+                  }
                   if (y1 < clip_rect.y)
+                  {
                      v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
                      y1 = clip_rect.y;
+                  }
                   if (x2 > clip_rect.z)
+                  {
                      u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
                      x2 = clip_rect.z;
+                  }
                   if (y2 > clip_rect.w)
+                  {
                      v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
                      y2 = clip_rect.w;
+                  }
                   if (y1 >= y2)
+                  {
                      x += char_width;
                      continue;
+                  }
+               }
                // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
+               {
                   idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx + 1); idx_write[2] = (ImDrawIdx)(vtx_current_idx + 2);
                   idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx + 2); idx_write[5] = (ImDrawIdx)(vtx_current_idx + 3);
                   vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
                   vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
                   vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
                   vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
                   vtx_write += 4;
                   vtx_current_idx += 4;
                   idx_write += 6;
+               }
+                // Render a character
+                float u1 = glyph->U0;
+                float v1 = glyph->V0;
+                float u2 = glyph->U1;
+                float v2 = glyph->V1;
+                // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
+                if (cpu_fine_clip)
+                {
+                    if (x1 < clip_rect.x)
+                    {
+                        u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
+                        x1 = clip_rect.x;
+                    }
+                    if (y1 < clip_rect.y)
+                    {
+                        v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
+                        y1 = clip_rect.y;
+                    }
+                    if (x2 > clip_rect.z)
+                    {
+                        u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
+                        x2 = clip_rect.z;
+                    }
+                    if (y2 > clip_rect.w)
+                    {
+                        v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
+                        y2 = clip_rect.w;
+                    }
+                    if (y1 >= y2)
+                    {
+                        x += char_width;
+                        continue;
+                    }
+                }
+                // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
+                {
+                    idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
+                    idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
+                    vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
+                    vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
+                    vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
+                    vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
+                    vtx_write += 4;
+                    vtx_current_idx += 4;
+                    idx_write += 6;
+                }
+            }
+         }
+      }
+      x += char_width;
+   }
+   // Give back unused vertices
+   draw_list->VtxBuffer.resize((int)(vtx_write - draw_list->VtxBuffer.Data));
+   draw_list->IdxBuffer.resize((int)(idx_write - draw_list->IdxBuffer.Data));
+   draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
+   draw_list->_VtxWritePtr = vtx_write;
+   draw_list->_IdxWritePtr = idx_write;
+   draw_list->_VtxCurrentIdx = (unsigned int)draw_list->VtxBuffer.Size;
+        }
+        x += char_width;
+    }
+    // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
+    draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
+    draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
+    draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
+    draw_list->_VtxWritePtr = vtx_write;
+    draw_list->_IdxWritePtr = idx_write;
+    draw_list->_VtxCurrentIdx = vtx_current_idx;
+}
 //-----------------------------------------------------------------------------
 // Internals Drawing Helpers
+// [SECTION] ImGui Internal Render Helpers
 //-----------------------------------------------------------------------------
+// Vaguely redesigned to stop accessing ImGui global state:
+// - RenderArrow()
+// - RenderBullet()
+// - RenderCheckMark()
+// - RenderMouseCursor()
+// - RenderArrowPointingAt()
+// - RenderRectFilledRangeH()
+//-----------------------------------------------------------------------------
+// Function in need of a redesign (legacy mess)
+// - RenderColorRectWithAlphaCheckerboard()
+//-----------------------------------------------------------------------------
+// Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state
+void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
+{
+    const float h = draw_list->_Data->FontSize * 1.00f;
+    float r = h * 0.40f * scale;
+    ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
+    ImVec2 a, b, c;
+    switch (dir)
+    {
+    case ImGuiDir_Up:
+    case ImGuiDir_Down:
+        if (dir == ImGuiDir_Up) r = -r;
+        a = ImVec2(+0.000f, +0.750f) * r;
+        b = ImVec2(-0.866f, -0.750f) * r;
+        c = ImVec2(+0.866f, -0.750f) * r;
+        break;
+    case ImGuiDir_Left:
+    case ImGuiDir_Right:
+        if (dir == ImGuiDir_Left) r = -r;
+        a = ImVec2(+0.750f, +0.000f) * r;
+        b = ImVec2(-0.750f, +0.866f) * r;
+        c = ImVec2(-0.750f, -0.866f) * r;
+        break;
+    case ImGuiDir_None:
+    case ImGuiDir_COUNT:
+        IM_ASSERT(0);
+        break;
+    }
+    draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
+}
+void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
+{
+    draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
+}
+void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
+{
+    float thickness = ImMax(sz / 5.0f, 1.0f);
+    sz -= thickness * 0.5f;
+    pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
+    float third = sz / 3.0f;
+    float bx = pos.x + third;
+    float by = pos.y + sz - third * 0.5f;
+    draw_list->PathLineTo(ImVec2(bx - third, by - third));
+    draw_list->PathLineTo(ImVec2(bx, by));
+    draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
+    draw_list->PathStroke(col, false, thickness);
+}
+void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
+{
+    if (mouse_cursor == ImGuiMouseCursor_None)
+        return;
+    IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
+    ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
+    ImVec2 offset, size, uv[4];
+    if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
+    {
+        pos -= offset;
+        const ImTextureID tex_id = font_atlas->TexID;
+        draw_list->PushTextureID(tex_id);
+        draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale,    uv[2], uv[3], col_shadow);
+        draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale,    uv[2], uv[3], col_shadow);
+        draw_list->AddImage(tex_id, pos,                        pos + size * scale,                     uv[2], uv[3], col_border);
+        draw_list->AddImage(tex_id, pos,                        pos + size * scale,                     uv[0], uv[1], col_fill);
+        draw_list->PopTextureID();
+    }
+}
+// Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
+void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
+{
+    switch (direction)
+    {
+    case ImGuiDir_Left:  draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), pos, col); return;
+    case ImGuiDir_Right: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), pos, col); return;
+    case ImGuiDir_Up:    draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), pos, col); return;
+    case ImGuiDir_Down:  draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), pos, col); return;
+    case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
+    }
+}
 static inline float ImAcos01(float x)
+{
    if (x <= 0.0f) return IM_PI * 0.5f;
    if (x >= 1.0f) return 0.0f;
    return acosf(x);
    //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
+    if (x <= 0.0f) return IM_PI * 0.5f;
+    if (x >= 1.0f) return 0.0f;
+    return ImAcos(x);
+    //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
+}
 …
 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
+{
+   if (x_end_norm == x_start_norm)
+      return;
+   if (x_start_norm > x_end_norm)
+      ImSwap(x_start_norm, x_end_norm);
+   ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
+   ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
+   if (rounding == 0.0f)
+   {
+      draw_list->AddRectFilled(p0, p1, col, 0.0f);
+      return;
+   }
+   rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
+   const float inv_rounding = 1.0f / rounding;
+   const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
+   const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
+   const float x0 = ImMax(p0.x, rect.Min.x + rounding);
+   if (arc0_b == arc0_e)
+   {
+      draw_list->PathLineTo(ImVec2(x0, p1.y));
+      draw_list->PathLineTo(ImVec2(x0, p0.y));
+   }
+   else if (arc0_b == 0.0f && arc0_e == IM_PI * 0.5f)
+   {
+      draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
+      draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
+   }
+   else
+   {
+      draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
+      draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
+   }
+   if (p1.x > rect.Min.x + rounding)
+   {
+      const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
+      const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
+      const float x1 = ImMin(p1.x, rect.Max.x - rounding);
+      if (arc1_b == arc1_e)
+      {
+         draw_list->PathLineTo(ImVec2(x1, p0.y));
+         draw_list->PathLineTo(ImVec2(x1, p1.y));
+      }
+      else if (arc1_b == 0.0f && arc1_e == IM_PI * 0.5f)
+      {
+         draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
+         draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3);  // BR
+      }
+      else
+      {
+         draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
+         draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
+      }
+   }
+   draw_list->PathFillConvex(col);
+    if (x_end_norm == x_start_norm)
+        return;
+    if (x_start_norm > x_end_norm)
+        ImSwap(x_start_norm, x_end_norm);
+    ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
+    ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
+    if (rounding == 0.0f)
+    {
+        draw_list->AddRectFilled(p0, p1, col, 0.0f);
+        return;
+    }
+    rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
+    const float inv_rounding = 1.0f / rounding;
+    const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
+    const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
+    const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
+    const float x0 = ImMax(p0.x, rect.Min.x + rounding);
+    if (arc0_b == arc0_e)
+    {
+        draw_list->PathLineTo(ImVec2(x0, p1.y));
+        draw_list->PathLineTo(ImVec2(x0, p0.y));
+    }
+    else if (arc0_b == 0.0f && arc0_e == half_pi)
+    {
+        draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
+        draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
+    }
+    else
+    {
+        draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
+        draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
+    }
+    if (p1.x > rect.Min.x + rounding)
+    {
+        const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
+        const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
+        const float x1 = ImMin(p1.x, rect.Max.x - rounding);
+        if (arc1_b == arc1_e)
+        {
+            draw_list->PathLineTo(ImVec2(x1, p0.y));
+            draw_list->PathLineTo(ImVec2(x1, p1.y));
+        }
+        else if (arc1_b == 0.0f && arc1_e == half_pi)
+        {
+            draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
+            draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3);  // BR
+        }
+        else
+        {
+            draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
+            draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
+        }
+    }
+    draw_list->PathFillConvex(col);
+}
+void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, ImRect outer, ImRect inner, ImU32 col, float rounding)
+{
+    const bool fill_L = (inner.Min.x > outer.Min.x);
+    const bool fill_R = (inner.Max.x < outer.Max.x);
+    const bool fill_U = (inner.Min.y > outer.Min.y);
+    const bool fill_D = (inner.Max.y < outer.Max.y);
+    if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, (fill_U ? 0 : ImDrawCornerFlags_TopLeft) | (fill_D ? 0 : ImDrawCornerFlags_BotLeft));
+    if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, (fill_U ? 0 : ImDrawCornerFlags_TopRight) | (fill_D ? 0 : ImDrawCornerFlags_BotRight));
+    if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, (fill_L ? 0 : ImDrawCornerFlags_TopLeft) | (fill_R ? 0 : ImDrawCornerFlags_TopRight));
+    if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, (fill_L ? 0 : ImDrawCornerFlags_BotLeft) | (fill_R ? 0 : ImDrawCornerFlags_BotRight));
+    if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawCornerFlags_TopLeft);
+    if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawCornerFlags_TopRight);
+    if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawCornerFlags_BotLeft);
+    if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawCornerFlags_BotRight);
+}
+// Helper for ColorPicker4()
+// NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that.
+// Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether.
+// FIXME: uses ImGui::GetColorU32
+void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, int rounding_corners_flags)
+{
+    if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
+    {
+        ImU32 col_bg1 = ImGui::GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
+        ImU32 col_bg2 = ImGui::GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
+        draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, rounding_corners_flags);
+        int yi = 0;
+        for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
+        {
+            float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
+            if (y2 <= y1)
+                continue;
+            for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
+            {
+                float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
+                if (x2 <= x1)
+                    continue;
+                int rounding_corners_flags_cell = 0;
+                if (y1 <= p_min.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopRight; }
+                if (y2 >= p_max.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotRight; }
+                rounding_corners_flags_cell &= rounding_corners_flags;
+                draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding_corners_flags_cell ? rounding : 0.0f, rounding_corners_flags_cell);
+            }
+        }
+    }
+    else
+    {
+        draw_list->AddRectFilled(p_min, p_max, col, rounding, rounding_corners_flags);
+    }
+}
 //-----------------------------------------------------------------------------
 // DEFAULT FONT DATA
+// [SECTION] Decompression code
 //-----------------------------------------------------------------------------
 // Compressed with stb_compress() then converted to a C array.
+// Compressed with stb_compress() then converted to a C array and encoded as base85.
 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
+// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
 //-----------------------------------------------------------------------------
 …
 static unsigned int stb_decompress_length(const unsigned char *input)
+{
    return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
+    return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
+}
 …
 static void stb__match(const unsigned char *data, unsigned int length)
+{
    // INVERSE of memmove... write each byte before copying the next...
    IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
    if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
    if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e + 1; return; }
    while (length--) *stb__dout++ = *data++;
+    // INVERSE of memmove... write each byte before copying the next...
+    IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
+    if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
+    if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
+    while (length--) *stb__dout++ = *data++;
+}
 static void stb__lit(const unsigned char *data, unsigned int length)
+{
    IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
    if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
    if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e + 1; return; }
    memcpy(stb__dout, data, length);
    stb__dout += length;
+    IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
+    if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
+    if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
+    memcpy(stb__dout, data, length);
+    stb__dout += length;
+}
 …
 static const unsigned char *stb_decompress_token(const unsigned char *i)
+{
+   if (*i >= 0x20) { // use fewer if's for cases that expand small
+      if (*i >= 0x80)       stb__match(stb__dout - i[1] - 1, i[0] - 0x80 + 1), i += 2;
+      else if (*i >= 0x40)  stb__match(stb__dout - (stb__in2(0) - 0x4000 + 1), i[2] + 1), i += 3;
+      else /* *i >= 0x20 */ stb__lit(i + 1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
+   }
+   else { // more ifs for cases that expand large, since overhead is amortized
+      if (*i >= 0x18)       stb__match(stb__dout - (stb__in3(0) - 0x180000 + 1), i[3] + 1), i += 4;
+      else if (*i >= 0x10)  stb__match(stb__dout - (stb__in3(0) - 0x100000 + 1), stb__in2(3) + 1), i += 5;
+      else if (*i >= 0x08)  stb__lit(i + 2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
+      else if (*i == 0x07)  stb__lit(i + 3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
+      else if (*i == 0x06)  stb__match(stb__dout - (stb__in3(1) + 1), i[4] + 1), i += 5;
+      else if (*i == 0x04)  stb__match(stb__dout - (stb__in3(1) + 1), stb__in2(4) + 1), i += 6;
+   }
+   return i;
+    if (*i >= 0x20) { // use fewer if's for cases that expand small
+        if (*i >= 0x80)       stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
+        else if (*i >= 0x40)  stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
+        else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
+    } else { // more ifs for cases that expand large, since overhead is amortized
+        if (*i >= 0x18)       stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
+        else if (*i >= 0x10)  stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
+        else if (*i >= 0x08)  stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
+        else if (*i == 0x07)  stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
+        else if (*i == 0x06)  stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
+        else if (*i == 0x04)  stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
+    }
+    return i;
+}
 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
+{
    const unsigned long ADLER_MOD = 65521;
    unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
    unsigned long blocklen, i;
    blocklen = buflen % 5552;
    while (buflen) {
       for (i = 0; i + 7 < blocklen; i += 8) {
          s1 += buffer[0], s2 += s1;
          s1 += buffer[1], s2 += s1;
          s1 += buffer[2], s2 += s1;
          s1 += buffer[3], s2 += s1;
          s1 += buffer[4], s2 += s1;
          s1 += buffer[5], s2 += s1;
          s1 += buffer[6], s2 += s1;
          s1 += buffer[7], s2 += s1;
          buffer += 8;
+      }
       for (; i < blocklen; ++i)
          s1 += *buffer++, s2 += s1;
       s1 %= ADLER_MOD, s2 %= ADLER_MOD;
       buflen -= blocklen;
       blocklen = 5552;
+   }
    return (unsigned int)(s2 << 16) + (unsigned int)s1;
+    const unsigned long ADLER_MOD = 65521;
+    unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
+    unsigned long blocklen = buflen % 5552;
+    unsigned long i;
+    while (buflen) {
+        for (i=0; i + 7 < blocklen; i += 8) {
+            s1 += buffer[0], s2 += s1;
+            s1 += buffer[1], s2 += s1;
+            s1 += buffer[2], s2 += s1;
+            s1 += buffer[3], s2 += s1;
+            s1 += buffer[4], s2 += s1;
+            s1 += buffer[5], s2 += s1;
+            s1 += buffer[6], s2 += s1;
+            s1 += buffer[7], s2 += s1;
+            buffer += 8;
+        }
+        for (; i < blocklen; ++i)
+            s1 += *buffer++, s2 += s1;
+        s1 %= ADLER_MOD, s2 %= ADLER_MOD;
+        buflen -= blocklen;
+        blocklen = 5552;
+    }
+    return (unsigned int)(s2 << 16) + (unsigned int)s1;
+}
 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
+{
+   unsigned int olen;
+   if (stb__in4(0) != 0x57bC0000) return 0;
+   if (stb__in4(4) != 0)          return 0; // error! stream is > 4GB
+   olen = stb_decompress_length(i);
+   stb__barrier_in_b = i;
+   stb__barrier_out_e = output + olen;
+   stb__barrier_out_b = output;
+   i += 16;
+   stb__dout = output;
+   for (;;) {
+      const unsigned char *old_i = i;
+      i = stb_decompress_token(i);
+      if (i == old_i) {
+         if (*i == 0x05 && i[1] == 0xfa) {
+            IM_ASSERT(stb__dout == output + olen);
+            if (stb__dout != output + olen) return 0;
+            if (stb_adler32(1, output, olen) != (unsigned int)stb__in4(2))
+               return 0;
+            return olen;
+         }
+         else {
+            IM_ASSERT(0); /* NOTREACHED */
+    if (stb__in4(0) != 0x57bC0000) return 0;
+    if (stb__in4(4) != 0)          return 0; // error! stream is > 4GB
+    const unsigned int olen = stb_decompress_length(i);
+    stb__barrier_in_b = i;
+    stb__barrier_out_e = output + olen;
+    stb__barrier_out_b = output;
+    i += 16;
+    stb__dout = output;
+    for (;;) {
+        const unsigned char *old_i = i;
+        i = stb_decompress_token(i);
+        if (i == old_i) {
+            if (*i == 0x05 && i[1] == 0xfa) {
+                IM_ASSERT(stb__dout == output + olen);
+                if (stb__dout != output + olen) return 0;
+                if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
+                    return 0;
+                return olen;
+            } else {
+                IM_ASSERT(0); /* NOTREACHED */
+                return 0;
+            }
+        }
+        IM_ASSERT(stb__dout <= output + olen);
+        if (stb__dout > output + olen)
             return 0;
+         }
+      }
+      IM_ASSERT(stb__dout <= output + olen);
+      if (stb__dout > output + olen)
+         return 0;
+   }
+}
+    }
+}
+//-----------------------------------------------------------------------------
+// [SECTION] Default font data (ProggyClean.ttf)
 //-----------------------------------------------------------------------------
 // ProggyClean.ttf
 …
 //-----------------------------------------------------------------------------
 // File: 'ProggyClean.ttf' (41208 bytes)
+// Exported using binary_to_compressed_c.cpp
+// Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
+// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
 //-----------------------------------------------------------------------------
 static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
 "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#"
 "`8ND>Qo#t'X#(v#Y9w0#1D$CIf;W'#pWUPXOuxXuU(H9M(1<q-UE31#^-V'8IRUo7Qf./L>=Ke$$'5F%)]0^#0X@U.a<r:QLtFsLcL6##lOj)#.Y5<-R&KgLwqJfLgN&;Q?gI^#DY2uL"
 "i@^rMl9t=cWq6##weg>$FBjVQTSDgEKnIS7EM9>ZY9w0#L;>>#Mx&4Mvt//L[MkA#W@lK.N'[0#7RL_&#w+F%HtG9M#XL`N&.,GM4Pg;-<nLENhvx>-VsM.M0rJfLH2eTM`*oJMHRC`N"
 "kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`&#0j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N"
 "*b=%Q6pia-Xg8I$<MR&,VdJe$<(7G;Ckl'&hF;;$<_=X(b.RS%%)###MPBuuE1V:v&cX&#2m#(&cV]`k9OhLMbn%s$G2,B$BfD3X*sp5#l,$R#]x_X1xKX%b5U*[r5iMfUo9U`N99hG)"
 "tm+/Us9pG)XPu`<0s-)WTt(gCRxIg(%6sfh=ktMKn3j)<6<b5Sk_/0(^]AaN#(p/L>&VZ>1i%h1S9u5o@YaaW$e+b<TWFn/Z:Oh(Cx2$lNEoN^e)#CFY@@I;BOQ*sRwZtZxRcU7uW6CX"
 "ow0i(?$Q[cjOd[P4d)]>ROPOpxTO7Stwi1::iB1q)C_=dV26J;2,]7op$]uQr@_V7$q^%lQwtuHY]=DX,n3L#0PHDO4f9>dC@O>HBuKPpP*E,N+b3L#lpR/MrTEH.IAQk.a>D[.e;mc."
 "x]Ip.PH^'/aqUO/$1WxLoW0[iLA<QT;5HKD+@qQ'NQ(3_PLhE48R.qAPSwQ0/WK?Z,[x?-J;jQTWA0X@KJ(_Y8N-:/M74:/-ZpKrUss?d#dZq]DAbkU*JqkL+nwX@@47`5>w=4h(9.`G"
 "CRUxHPeR`5Mjol(dUWxZa(>STrPkrJiWx`5U7F#.g*jrohGg`cg:lSTvEY/EV_7H4Q9[Z%cnv;JQYZ5q.l7Zeas:HOIZOB?G<Nald$qs]@]L<J7bR*>gv:[7MI2k).'2($5FNP&EQ(,)"
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+    "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
+    "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
 static const char* GetDefaultCompressedFontDataTTFBase85()
+{
+   return proggy_clean_ttf_compressed_data_base85;
+}
+    return proggy_clean_ttf_compressed_data_base85;
+}
+#endif // #ifndef IMGUI_DISABLE

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Changeset e66fd66 in opengl-game for IMGUI/imgui_draw.cpp

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IMGUI/imgui_draw.cpp

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