Move OpenGL headers from API to implementation.

We don't want to expose any OpenGL functions to client code. Because if we do, there is a chance we break client code if we switch implementation (Direct3D).

include/Spectre/Graphics/OpenGL.h

@@ -1,7 +0,0 @@
-
-#ifndef SPECTRE_OPENGL_H
-#define SPECTRE_OPENGL_H
-
-#include <Spectre/Graphics/GL/glad.h>
-
-#endif /* SPECTRE_OPENGL_H */

source/Graphics/BatchRenderer2D.cpp

@@ -1,12 +1,12 @@
 
 #include <Spectre/System/Log.h>
-#include <Spectre/Graphics/OpenGL.h>
 #include <Spectre/Graphics/Renderable.h>
 #include <Spectre/Graphics/RenderState.h>
 #include <Spectre/Graphics/ShaderProgram.h>
 #include <Spectre/Graphics/Texture.h>
 #include <Spectre/Graphics/BatchRenderer2D.h>
 #include <Spectre/Math/Math.h>
+#include <Graphics/GL/gl.h>
 
 #include <algorithm>
 

source/Graphics/DefaultRenderer2D.cpp

@@ -1,8 +1,8 @@
 
 #include <Spectre/Graphics/Texture.h>
-#include <Spectre/Graphics/OpenGL.h>
 #include <Spectre/Graphics/Renderable.h>
 #include <Spectre/Graphics/DefaultRenderer2D.h>
+#include <Graphics/GL/gl.h>
 
 namespace sp {
 

source/Graphics/GL/CheckError.h

@@ -2,7 +2,7 @@
 #ifndef SPECTRE_GRAPHICS_GL_CHECKERROR_H
 #define SPECTRE_GRAPHICS_GL_CHECKERROR_H
 
-#include <Spectre/Graphics/OpenGL.h>
+#include "gl.h"
 
 #define checkGLError(expr) do { expr; glCheckError(__FILE__, __LINE__, #expr); } while(false)
 

source/Graphics/GL/gl.h

@@ -0,0 +1,7 @@
+
+#ifndef SPECTRE_GRAPHICS_GL_GL_H
+#define SPECTRE_GRAPHICS_GL_GL_H
+
+#include "glad.h"
+
+#endif /* SPECTRE_GRAPHICS_GL_GL_H */

source/Graphics/GL/glad.c

@@ -1,7 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <Spectre/Graphics/GL/glad.h>
+#include "glad.h"
 
 #ifndef GLAD_IMPL_UTIL_C_
 #define GLAD_IMPL_UTIL_C_

source/Graphics/OpenGL.cpp

@@ -1,6 +1,6 @@
 
 #include <Spectre/Graphics.h>
-#include <Spectre/Graphics/OpenGL.h>
+#include <Graphics/GL/gl.h>
 #include <string>
 
 namespace sp {

source/Graphics/Shader.cpp

@@ -1,8 +1,8 @@
 
 #include <fstream>
 #include <Spectre/System/File.h>
-#include <Spectre/Graphics/OpenGL.h>
 #include <Spectre/Graphics/Shader.h>
+#include <Graphics/GL/gl.h>
 
 namespace sp {
 

source/Graphics/ShaderProgram.cpp

@@ -1,8 +1,8 @@
 
 #include <Spectre/Math/Color.h>
-#include <Spectre/Graphics/OpenGL.h>
 #include <Spectre/Graphics/ShaderProgram.h>
 #include <Spectre/System/File.h>
+#include <Graphics/GL/gl.h>
 
 namespace sp {
 

source/Graphics/Texture.cpp

@@ -1,7 +1,7 @@
 
 #include <Spectre/Graphics/Image.h>
-#include <Spectre/Graphics/OpenGL.h>
 #include <Spectre/Graphics/Texture.h>
+#include <Graphics/GL/gl.h>
 
 namespace sp {
 

source/Platform/Win32/glad_wgl.h

@@ -29,7 +29,7 @@
 #define GLAD_WGL_H_
 
 #include <windows.h>
-#include <Spectre/Graphics/GL/glad.h>
+#include <Graphics/GL/glad.h>
 
 #define GLAD_WGL
 #define GLAD_OPTION_WGL_LOADER