From 05da51d7a86898c2f32c75b205a8c36c1e17dd4d Mon Sep 17 00:00:00 2001
From: Sergey Lipskiy <gonetz@ngs.ru>
Date: Fri, 27 Jan 2017 22:35:48 +0700
Subject: [PATCH] Add EGL section to GLFunctions.

---
 src/Graphics/OpenGLContext/GLFunctions.cpp | 71 +++++++++++++++++++++-
 src/Graphics/OpenGLContext/GLFunctions.h   | 30 +++++++++
 2 files changed, 100 insertions(+), 1 deletion(-)

diff --git a/src/Graphics/OpenGLContext/GLFunctions.cpp b/src/Graphics/OpenGLContext/GLFunctions.cpp
index 2748cf8d..62a8b82c 100644
--- a/src/Graphics/OpenGLContext/GLFunctions.cpp
+++ b/src/Graphics/OpenGLContext/GLFunctions.cpp
@@ -1,9 +1,12 @@
 #include "GLFunctions.h"
 
 #ifdef OS_WINDOWS
+
 #define glGetProcAddress wglGetProcAddress
 #define GL_GET_PROC_ADR(proc_type, proc_name) proc_name = (proc_type) glGetProcAddress(#proc_name)
+
 #elif defined(OS_LINUX)
+
 #include <X11/Xutil.h>
 typedef XID GLXContextID;
 typedef XID GLXPixmap;
@@ -17,13 +20,50 @@ typedef struct __GLXFBConfigRec *GLXFBConfig;
 #include <GL/glxext.h>
 #define glGetProcAddress glXGetProcAddress
 #define GL_GET_PROC_ADR(proc_type, proc_name) proc_name = (proc_type) glGetProcAddress((const GLubyte*)#proc_name)
+
+#elif defined(EGL)
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#define glGetProcAddress eglGetProcAddress
+#define GL_GET_PROC_ADR(proc_type, proc_name) proc_name = (proc_type) glGetProcAddress(#proc_name)
+
 #endif
 
+//GL Fucntions
+
 #ifdef OS_WINDOWS
 PFNGLACTIVETEXTUREPROC glActiveTexture;
 PFNGLBLENDCOLORPROC glBlendColor;
+#elif defined(EGL)
+PFNGLBLENDFUNCPROC glBlendFunc;
+PFNGLPIXELSTOREIPROC glPixelStorei;
+PFNGLCLEARCOLORPROC glClearColor;
+PFNGLCULLFACEPROC glCullFace;
+PFNGLDEPTHFUNCPROC glDepthFunc;
+PFNGLDEPTHMASKPROC glDepthMask;
+PFNGLDISABLEPROC glDisable;
+PFNGLENABLEPROC glEnable;
+PFNGLPOLYGONOFFSETPROC glPolygonOffset;
+PFNGLSCISSORPROC glScissor;
+PFNGLVIEWPORTPROC glViewport;
+PFNGLBINDTEXTUREPROC glBindTexture;
+PFNGLTEXIMAGE2DPROC glTexImage2D;
+PFNGLTEXPARAMETERIPROC glTexParameteri;
+PFNGLGETINTEGERVPROC glGetIntegerv;
+PFNGLGETSTRINGPROC glGetString;
+PFNGLREADPIXELSPROC glReadPixels;
+PFNGLTEXSUBIMAGE2DPROC glTexSubImage2D;
+PFNGLDRAWARRAYSPROC glDrawArrays;
+PFNGLGETERRORPROC glGetError;
+PFNGLDRAWELEMENTSPROC glDrawElements;
+PFNGLLINEWIDTHPROC glLineWidth;
+PFNGLCLEARPROC glClear;
+PFNGLGETFLOATVPROC glGetFloatv;
+PFNGLDELETETEXTURESPROC glDeleteTextures;
+PFNGLGENTEXTURESPROC glGenTextures;
+PFNGLTEXPARAMETERFPROC glTexParameterf;
 #endif
-// GLSL functions
 PFNGLCREATESHADERPROC glCreateShader;
 PFNGLCOMPILESHADERPROC glCompileShader;
 PFNGLSHADERSOURCEPROC glShaderSource;
@@ -117,7 +157,36 @@ void initGLFunctions()
 #ifdef OS_WINDOWS
 	GL_GET_PROC_ADR(PFNGLACTIVETEXTUREPROC, glActiveTexture);
 	GL_GET_PROC_ADR(PFNGLBLENDCOLORPROC, glBlendColor);
+#elif defined(EGL)
+	GL_GET_PROC_ADR(PFNGLBLENDFUNCPROC, glBlendFunc);
+	GL_GET_PROC_ADR(PFNGLPIXELSTOREIPROC, glPixelStorei);
+	GL_GET_PROC_ADR(PFNGLCLEARCOLORPROC, glClearColor);
+	GL_GET_PROC_ADR(PFNGLCULLFACEPROC, glCullFace);
+	GL_GET_PROC_ADR(PFNGLDEPTHFUNCPROC, glDepthFunc);
+	GL_GET_PROC_ADR(PFNGLDEPTHMASKPROC, glDepthMask);
+	GL_GET_PROC_ADR(PFNGLDISABLEPROC, glDisable);
+	GL_GET_PROC_ADR(PFNGLENABLEPROC, glEnable);
+	GL_GET_PROC_ADR(PFNGLPOLYGONOFFSETPROC, glPolygonOffset);
+	GL_GET_PROC_ADR(PFNGLSCISSORPROC, glScissor);
+	GL_GET_PROC_ADR(PFNGLVIEWPORTPROC, glViewport);
+	GL_GET_PROC_ADR(PFNGLBINDTEXTUREPROC, glBindTexture);
+	GL_GET_PROC_ADR(PFNGLTEXIMAGE2DPROC, glTexImage2D);
+	GL_GET_PROC_ADR(PFNGLTEXPARAMETERIPROC, glTexParameteri);
+	GL_GET_PROC_ADR(PFNGLGETINTEGERVPROC, glGetIntegerv);
+	GL_GET_PROC_ADR(PFNGLGETSTRINGPROC, glGetString);
+	GL_GET_PROC_ADR(PFNGLREADPIXELSPROC, glReadPixels);
+	GL_GET_PROC_ADR(PFNGLTEXSUBIMAGE2DPROC, glTexSubImage2D);
+	GL_GET_PROC_ADR(PFNGLDRAWARRAYSPROC, glDrawArrays);
+	GL_GET_PROC_ADR(PFNGLGETERRORPROC, glGetError);
+	GL_GET_PROC_ADR(PFNGLDRAWELEMENTSPROC, glDrawElements);
+	GL_GET_PROC_ADR(PFNGLLINEWIDTHPROC, glLineWidth);
+	GL_GET_PROC_ADR(PFNGLCLEARPROC, glClear);
+	GL_GET_PROC_ADR(PFNGLGETFLOATVPROC, glGetFloatv);
+	GL_GET_PROC_ADR(PFNGLDELETETEXTURESPROC, glDeleteTextures);
+	GL_GET_PROC_ADR(PFNGLGENTEXTURESPROC, glGenTextures);
+	GL_GET_PROC_ADR(PFNGLTEXPARAMETERFPROC, glTexParameterf);
 #endif
+
 	GL_GET_PROC_ADR(PFNGLCREATESHADERPROC, glCreateShader);
 	GL_GET_PROC_ADR(PFNGLCOMPILESHADERPROC, glCompileShader);
 	GL_GET_PROC_ADR(PFNGLSHADERSOURCEPROC, glShaderSource);
diff --git a/src/Graphics/OpenGLContext/GLFunctions.h b/src/Graphics/OpenGLContext/GLFunctions.h
index 8ca318e0..0def3b31 100644
--- a/src/Graphics/OpenGLContext/GLFunctions.h
+++ b/src/Graphics/OpenGLContext/GLFunctions.h
@@ -11,6 +11,36 @@
 #include <GL/gl.h>
 #include <GL/glext.h>
 
+#ifdef EGL
+extern PFNGLBLENDFUNCPROC glBlendFunc;
+extern PFNGLPIXELSTOREIPROC glPixelStorei;
+extern PFNGLCLEARCOLORPROC glClearColor;
+extern PFNGLCULLFACEPROC glCullFace;
+extern PFNGLDEPTHFUNCPROC glDepthFunc;
+extern PFNGLDEPTHMASKPROC glDepthMask;
+extern PFNGLDISABLEPROC glDisable;
+extern PFNGLENABLEPROC glEnable;
+extern PFNGLPOLYGONOFFSETPROC glPolygonOffset;
+extern PFNGLSCISSORPROC glScissor;
+extern PFNGLVIEWPORTPROC glViewport;
+extern PFNGLBINDTEXTUREPROC glBindTexture;
+extern PFNGLTEXIMAGE2DPROC glTexImage2D;
+extern PFNGLTEXPARAMETERIPROC glTexParameteri;
+extern PFNGLGETINTEGERVPROC glGetIntegerv;
+extern PFNGLGETSTRINGPROC glGetString;
+extern PFNGLREADPIXELSPROC glReadPixels;
+extern PFNGLTEXSUBIMAGE2DPROC glTexSubImage2D;
+extern PFNGLDRAWARRAYSPROC glDrawArrays;
+extern PFNGLGETERRORPROC glGetError;
+extern PFNGLDRAWELEMENTSPROC glDrawElements;
+extern PFNGLLINEWIDTHPROC glLineWidth;
+extern PFNGLCLEARPROC glClear;
+extern PFNGLGETFLOATVPROC glGetFloatv;
+extern PFNGLDELETETEXTURESPROC glDeleteTextures;
+extern PFNGLGENTEXTURESPROC glGenTextures;
+extern PFNGLTEXPARAMETERFPROC glTexParameterf;
+#endif
+
 #ifdef OS_WINDOWS
 extern PFNGLACTIVETEXTUREPROC glActiveTexture;
 extern PFNGLBLENDCOLORPROC glBlendColor;