Changeset 0b1b52d in opengl-game for graphics-pipeline_opengl.hpp

Timestamp:

Oct 4, 2019, 8:27:07 PM (5 years ago)

Author:

Dmitry Portnoy <dmitry.portnoy@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

771b33a

Parents:

83b5b4b

Message:

In openglgame, port over the functionality to specify and initialize varying attributes

File:

• graphics-pipeline_opengl.hpp (modified) (2 diffs)

graphics-pipeline_opengl.hpp

@@ -2 +2 @@
 #define _GRAPHICS_PIPELINE_OPENGL_H
 
+#include "graphics-pipeline.hpp"
+
+#include <vector>
+
 #include <GL/glew.h>
 
-#include "graphics-pipeline.hpp"
+enum VaryingAttribType {
+   ATTRIB_OBJECT_VARYING,
+   ATTRIB_POINT_VARYING,
+};
+
+// TODO: Might be better to create a different struct for uniform attributes
+struct VaryingAttribInfo {
+   VaryingAttribType attribType;
+   GLuint index;
+   GLint size;
+   GLenum type;
+   // UniformType uniType;
+   GLuint buffer; // For uniforms, this is the uniform location
+   size_t fieldOffset;
+   // GLfloat* data; // pointer to data source for uniform attributes
+};
 
 class GraphicsPipeline_OpenGL : public GraphicsPipeline {
    public:
-      GraphicsPipeline_OpenGL();
+      GraphicsPipeline_OpenGL(Viewport viewport);
       ~GraphicsPipeline_OpenGL();
 
+      void addVaryingAttribute(VaryingAttribType attribType, GLint size, GLenum type, size_t fieldOffset);
       void createPipeline(string vertShaderFile, string fragShaderFile);
 
@@ -18 +38 @@
       unsigned int numPoints;
 
+      vector<VaryingAttribInfo> varyingAttribs;
+
       GLuint loadShaderProgram(string vertShaderFile, string fragShaderFile);
       GLuint loadShader(GLenum type, string file);