Merge branch 'mesa_7_5_branch'

Conflicts:

	progs/util/extfuncs.h

3 files changed, 158 insertions, 38 deletions

diff --git a/progs/demos/Makefile b/progs/demos/Makefile
index c17595ec794..65fdbaaad8e 100644
--- a/progs/demos/Makefile
+++ b/progs/demos/Makefile
@@ -145,6 +145,13 @@ engine.o: engine.c trackball.h
 	$(APP_CC) -c -I$(INCDIR) $(CFLAGS) engine.c
 
 
+fbotexture: fbotexture.o
+	$(APP_CC) $(CFLAGS) $(LDFLAGS) fbotexture.o $(LIBS) -o $@
+
+fbotexture.o: fbotexture.c extfuncs.h
+	$(APP_CC) -c -I$(INCDIR) $(CFLAGS) fbotexture.c
+
+
 fslight: fslight.o
 	$(APP_CC) $(CFLAGS) $(LDFLAGS) fslight.o $(LIBS) -o $@
 
diff --git a/progs/demos/fbotexture.c b/progs/demos/fbotexture.c
index 50a4b00afce..3b36f755a04 100644
--- a/progs/demos/fbotexture.c
+++ b/progs/demos/fbotexture.c
@@ -9,13 +9,13 @@
  */
 
 
-#include <GL/glew.h>
 #include <GL/glut.h>
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+#include "extfuncs.h"
 
 /* For debug */
 #define DEPTH 1
@@ -80,9 +80,9 @@ RenderTexture(void)
    glTranslatef(0.0, 0.0, -15.0);
 
    /* draw to texture image */
-   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB);
+   glBindFramebuffer_func(GL_FRAMEBUFFER_EXT, MyFB);
 
-   status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+   status = glCheckFramebufferStatus_func(GL_FRAMEBUFFER_EXT);
    if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
       printf("Framebuffer incomplete!!!\n");
    }
@@ -171,7 +171,7 @@ RenderTexture(void)
 
 #if DRAW
    /* Bind normal framebuffer */
-   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+   glBindFramebuffer_func(GL_FRAMEBUFFER_EXT, 0);
 #endif
 
    CheckError(__LINE__);
@@ -252,12 +252,12 @@ static void
 CleanUp(void)
 {
 #if DEPTH
-   glDeleteRenderbuffersEXT(1, &DepthRB);
+   glDeleteRenderbuffers_func(1, &DepthRB);
 #endif
 #if STENCIL
-   glDeleteRenderbuffersEXT(1, &StencilRB);
+   glDeleteRenderbuffers_func(1, &StencilRB);
 #endif
-   glDeleteFramebuffersEXT(1, &MyFB);
+   glDeleteFramebuffers_func(1, &MyFB);
 
    glDeleteTextures(1, &TexObj);
 
@@ -318,14 +318,14 @@ AttachDepthAndStencilBuffers(GLuint fbo,
 
    *depthRbOut = *stencilRbOut = 0;
 
-   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
+   glBindFramebuffer_func(GL_FRAMEBUFFER_EXT, fbo);
 
    if (tryDepthStencil) {
       GLuint rb;
 
-      glGenRenderbuffersEXT(1, &rb);
-      glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb);
-      glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,
+      glGenRenderbuffers_func(1, &rb);
+      glBindRenderbuffer_func(GL_RENDERBUFFER_EXT, rb);
+      glRenderbufferStorage_func(GL_RENDERBUFFER_EXT,
                                GL_DEPTH24_STENCIL8_EXT,
                                width, height);
       if (glGetError())
@@ -333,7 +333,7 @@ AttachDepthAndStencilBuffers(GLuint fbo,
 
       if (bindDepthStencil) {
          /* attach to both depth and stencil at once */
-         glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+         glFramebufferRenderbuffer_func(GL_FRAMEBUFFER_EXT,
                                       GL_DEPTH_STENCIL_ATTACHMENT,
                                       GL_RENDERBUFFER_EXT, rb);
          if (glGetError())
@@ -341,21 +341,21 @@ AttachDepthAndStencilBuffers(GLuint fbo,
       }
       else {
          /* attach to depth attachment point */
-         glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+         glFramebufferRenderbuffer_func(GL_FRAMEBUFFER_EXT,
                                       GL_DEPTH_ATTACHMENT_EXT,
                                       GL_RENDERBUFFER_EXT, rb);
          if (glGetError())
             return GL_FALSE;
 
          /* and attach to stencil attachment point */
-         glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+         glFramebufferRenderbuffer_func(GL_FRAMEBUFFER_EXT,
                                       GL_STENCIL_ATTACHMENT_EXT,
                                       GL_RENDERBUFFER_EXT, rb);
          if (glGetError())
             return GL_FALSE;
       }
 
-      status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+      status = glCheckFramebufferStatus_func(GL_FRAMEBUFFER_EXT);
       if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
          return GL_FALSE;
 
@@ -367,22 +367,22 @@ AttachDepthAndStencilBuffers(GLuint fbo,
    {
       GLuint rb;
 
-      glGenRenderbuffersEXT(1, &rb);
-      glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb);
-      glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,
+      glGenRenderbuffers_func(1, &rb);
+      glBindRenderbuffer_func(GL_RENDERBUFFER_EXT, rb);
+      glRenderbufferStorage_func(GL_RENDERBUFFER_EXT,
                                GL_DEPTH_COMPONENT,
                                width, height);
       if (glGetError())
          return GL_FALSE;
 
       /* attach to depth attachment point */
-      glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+      glFramebufferRenderbuffer_func(GL_FRAMEBUFFER_EXT,
                                    GL_DEPTH_ATTACHMENT_EXT,
                                    GL_RENDERBUFFER_EXT, rb);
       if (glGetError())
          return GL_FALSE;
 
-      status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+      status = glCheckFramebufferStatus_func(GL_FRAMEBUFFER_EXT);
       if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
          return GL_FALSE;
 
@@ -393,26 +393,26 @@ AttachDepthAndStencilBuffers(GLuint fbo,
    {
       GLuint rb;
 
-      glGenRenderbuffersEXT(1, &rb);
-      glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb);
-      glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,
+      glGenRenderbuffers_func(1, &rb);
+      glBindRenderbuffer_func(GL_RENDERBUFFER_EXT, rb);
+      glRenderbufferStorage_func(GL_RENDERBUFFER_EXT,
                                GL_STENCIL_INDEX,
                                width, height);
       if (glGetError())
          return GL_FALSE;
 
       /* attach to depth attachment point */
-      glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+      glFramebufferRenderbuffer_func(GL_FRAMEBUFFER_EXT,
                                    GL_STENCIL_ATTACHMENT_EXT,
                                    GL_RENDERBUFFER_EXT, rb);
       if (glGetError())
          return GL_FALSE;
 
-      status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+      status = glCheckFramebufferStatus_func(GL_FRAMEBUFFER_EXT);
       if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
-         glDeleteRenderbuffersEXT(1, depthRbOut);
+         glDeleteRenderbuffers_func(1, depthRbOut);
          *depthRbOut = 0;
-         glDeleteRenderbuffersEXT(1, &rb);
+         glDeleteRenderbuffers_func(1, &rb);
          return GL_FALSE;
       }
 
@@ -463,6 +463,37 @@ ParseArgs(int argc, char *argv[])
 }
 
 
+static void
+SetupFunctionPointers(void)
+{
+   GetExtensionFuncs();
+
+   if (Use_ARB_fbo) {
+      /* no-op: use the ARB functions as-is */
+   }
+   else {
+      /* set the ARB-flavor function pointers to point to the EXT functions */
+      glIsRenderbuffer_func = glIsRenderbufferEXT_func;
+      glBindRenderbuffer_func = glBindRenderbufferEXT_func;
+      glDeleteRenderbuffers_func = glDeleteRenderbuffersEXT_func;
+      glGenRenderbuffers_func = glGenRenderbuffersEXT_func;
+      glRenderbufferStorage_func = glRenderbufferStorageEXT_func;
+      glGetRenderbufferParameteriv_func = glGetRenderbufferParameterivEXT_func;
+      glIsFramebuffer_func = glIsFramebufferEXT_func;
+      glBindFramebuffer_func = glBindFramebufferEXT_func;
+      glDeleteFramebuffers_func = glDeleteFramebuffersEXT_func;
+      glGenFramebuffers_func = glGenFramebuffersEXT_func;
+      glCheckFramebufferStatus_func = glCheckFramebufferStatusEXT_func;
+      glFramebufferTexture1D_func = glFramebufferTexture1DEXT_func;
+      glFramebufferTexture2D_func = glFramebufferTexture2DEXT_func;
+      glFramebufferTexture3D_func = glFramebufferTexture3DEXT_func;
+      glFramebufferRenderbuffer_func = glFramebufferRenderbufferEXT_func;
+      glGetFramebufferAttachmentParameteriv_func = glGetFramebufferAttachmentParameterivEXT_func;
+      glGenerateMipmap_func = glGenerateMipmapEXT_func;
+   }
+}
+
+
 /*
  * Make FBO to render into given texture.
  */
@@ -472,10 +503,10 @@ MakeFBO_RenderTexture(GLuint TexObj)
    GLuint fb;
    GLint sizeFudge = 0;
 
-   glGenFramebuffersEXT(1, &fb);
-   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb);
+   glGenFramebuffers_func(1, &fb);
+   glBindFramebuffer_func(GL_FRAMEBUFFER_EXT, fb);
    /* Render color to texture */
-   glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+   glFramebufferTexture2D_func(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
                              TexTarget, TexObj, TextureLevel);
 
    if (Use_ARB_fbo) {
@@ -512,26 +543,26 @@ MakeFBO_RenderTexture(GLuint TexObj)
    {
       GLint bits, w, h;
 
-      glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, DepthRB);
-      glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
+      glBindRenderbuffer_func(GL_RENDERBUFFER_EXT, DepthRB);
+      glGetRenderbufferParameteriv_func(GL_RENDERBUFFER_EXT,
                                       GL_RENDERBUFFER_WIDTH_EXT, &w);
-      glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
+      glGetRenderbufferParameteriv_func(GL_RENDERBUFFER_EXT,
                                       GL_RENDERBUFFER_HEIGHT_EXT, &h);
       printf("Color/Texture size: %d x %d\n", TexWidth, TexHeight);
       printf("Depth buffer size: %d x %d\n", w, h);
 
-      glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
+      glGetRenderbufferParameteriv_func(GL_RENDERBUFFER_EXT,
                                       GL_RENDERBUFFER_DEPTH_SIZE_EXT, &bits);
       printf("Depth renderbuffer size = %d bits\n", bits);
 
-      glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, StencilRB);
-      glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
+      glBindRenderbuffer_func(GL_RENDERBUFFER_EXT, StencilRB);
+      glGetRenderbufferParameteriv_func(GL_RENDERBUFFER_EXT,
                                       GL_RENDERBUFFER_STENCIL_SIZE_EXT, &bits);
       printf("Stencil renderbuffer size = %d bits\n", bits);
    }
 
    /* bind the regular framebuffer */
-   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+   glBindFramebuffer_func(GL_FRAMEBUFFER_EXT, 0);
 
    return fb;
 }
@@ -547,6 +578,8 @@ Init(void)
 
    printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
 
+   SetupFunctionPointers();
+
    /* lighting */
    {
       static const GLfloat mat[4] = { 1.0, 0.5, 0.5, 1.0 };
@@ -605,7 +638,6 @@ main(int argc, char *argv[])
    glutInitWindowSize(Width, Height);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    Win = glutCreateWindow(argv[0]);
-   glewInit();
    glutReshapeFunc(Reshape);
    glutKeyboardFunc(Key);
    glutDisplayFunc(Display);
diff --git a/progs/util/extfuncs.h b/progs/util/extfuncs.h
index 238794d55a9..2bb57030a89 100644
--- a/progs/util/extfuncs.h
+++ b/progs/util/extfuncs.h
@@ -95,6 +95,47 @@ static PFNGLBUFFERSUBDATAARBPROC glBufferSubDataARB_func = NULL;
 static PFNGLMAPBUFFERARBPROC glMapBufferARB_func = NULL;
 static PFNGLUNMAPBUFFERARBPROC glUnmapBufferARB_func = NULL;
 
+/* GL_EXT_framebuffer_object */
+static PFNGLISRENDERBUFFEREXTPROC glIsRenderbufferEXT_func = NULL;
+static PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbufferEXT_func = NULL;
+static PFNGLDELETERENDERBUFFERSEXTPROC glDeleteRenderbuffersEXT_func = NULL;
+static PFNGLGENRENDERBUFFERSEXTPROC glGenRenderbuffersEXT_func = NULL;
+static PFNGLRENDERBUFFERSTORAGEEXTPROC glRenderbufferStorageEXT_func = NULL;
+static PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC glGetRenderbufferParameterivEXT_func = NULL;
+static PFNGLISFRAMEBUFFEREXTPROC glIsFramebufferEXT_func = NULL;
+static PFNGLBINDFRAMEBUFFEREXTPROC glBindFramebufferEXT_func = NULL;
+static PFNGLDELETEFRAMEBUFFERSEXTPROC glDeleteFramebuffersEXT_func = NULL;
+static PFNGLGENFRAMEBUFFERSEXTPROC glGenFramebuffersEXT_func = NULL;
+static PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC glCheckFramebufferStatusEXT_func = NULL;
+static PFNGLFRAMEBUFFERTEXTURE1DEXTPROC glFramebufferTexture1DEXT_func = NULL;
+static PFNGLFRAMEBUFFERTEXTURE2DEXTPROC glFramebufferTexture2DEXT_func = NULL;
+static PFNGLFRAMEBUFFERTEXTURE3DEXTPROC glFramebufferTexture3DEXT_func = NULL;
+static PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC glFramebufferRenderbufferEXT_func = NULL;
+static PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC glGetFramebufferAttachmentParameterivEXT_func = NULL;
+static PFNGLGENERATEMIPMAPEXTPROC glGenerateMipmapEXT_func = NULL;
+
+/* GL_ARB_framebuffer_object */
+static PFNGLISRENDERBUFFERPROC glIsRenderbuffer_func = NULL;
+static PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer_func = NULL;
+static PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers_func = NULL;
+static PFNGLGENRENDERBUFFERSPROC glGenRenderbuffers_func = NULL;
+static PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage_func = NULL;
+static PFNGLGETRENDERBUFFERPARAMETERIVPROC glGetRenderbufferParameteriv_func = NULL;
+static PFNGLISFRAMEBUFFERPROC glIsFramebuffer_func = NULL;
+static PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer_func = NULL;
+static PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers_func = NULL;
+static PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers_func = NULL;
+static PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus_func = NULL;
+static PFNGLFRAMEBUFFERTEXTURE1DPROC glFramebufferTexture1D_func = NULL;
+static PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D_func = NULL;
+static PFNGLFRAMEBUFFERTEXTURE3DPROC glFramebufferTexture3D_func = NULL;
+static PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer_func = NULL;
+static PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glGetFramebufferAttachmentParameteriv_func = NULL;
+static PFNGLGENERATEMIPMAPPROC glGenerateMipmap_func = NULL;
+static PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer_func = NULL;
+static PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glRenderbufferStorageMultisample_func = NULL;
+static PFNGLFRAMEBUFFERTEXTURELAYERPROC glFramebufferTextureLayer_func = NULL;
+
 
 static void
 GetExtensionFuncs(void)
@@ -192,5 +233,45 @@ GetExtensionFuncs(void)
    glMapBufferARB_func = (PFNGLMAPBUFFERARBPROC) glutGetProcAddress("glMapBufferARB");
    glUnmapBufferARB_func = (PFNGLUNMAPBUFFERARBPROC) glutGetProcAddress("glUnmapBufferARB");
 
+   /* GL_EXT_framebuffer_object */
+   glIsRenderbufferEXT_func = (PFNGLISRENDERBUFFEREXTPROC) glutGetProcAddress("glIsRenderbufferEXT");
+   glBindRenderbufferEXT_func = (PFNGLBINDRENDERBUFFEREXTPROC) glutGetProcAddress("glBindRenderbufferEXT");
+   glDeleteRenderbuffersEXT_func = (PFNGLDELETERENDERBUFFERSEXTPROC) glutGetProcAddress("glDeleteRenderbuffersEXT");
+   glGenRenderbuffersEXT_func = (PFNGLGENRENDERBUFFERSEXTPROC) glutGetProcAddress("glGenRenderbuffersEXT");
+   glRenderbufferStorageEXT_func = (PFNGLRENDERBUFFERSTORAGEEXTPROC) glutGetProcAddress("glRenderbufferStorageEXT");
+   glGetRenderbufferParameterivEXT_func = (PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC) glutGetProcAddress("glGetRenderbufferParameterivEXT");
+   glIsFramebufferEXT_func = (PFNGLISFRAMEBUFFEREXTPROC) glutGetProcAddress("glIsFramebufferEXT");
+   glBindFramebufferEXT_func = (PFNGLBINDFRAMEBUFFEREXTPROC) glutGetProcAddress("glBindFramebufferEXT");
+   glDeleteFramebuffersEXT_func = (PFNGLDELETEFRAMEBUFFERSEXTPROC) glutGetProcAddress("glDeleteFramebuffersEXT");
+   glGenFramebuffersEXT_func = (PFNGLGENFRAMEBUFFERSEXTPROC) glutGetProcAddress("glGenFramebuffersEXT");
+   glCheckFramebufferStatusEXT_func = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC) glutGetProcAddress("glCheckFramebufferStatusEXT");
+   glFramebufferTexture1DEXT_func = (PFNGLFRAMEBUFFERTEXTURE1DEXTPROC) glutGetProcAddress("glFramebufferTexture1DEXT");
+   glFramebufferTexture2DEXT_func = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC) glutGetProcAddress("glFramebufferTexture2DEXT");
+   glFramebufferTexture3DEXT_func = (PFNGLFRAMEBUFFERTEXTURE3DEXTPROC) glutGetProcAddress("glFramebufferTexture3DEXT");
+   glFramebufferRenderbufferEXT_func = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC) glutGetProcAddress("glFramebufferRenderbufferEXT");
+   glGetFramebufferAttachmentParameterivEXT_func = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC) glutGetProcAddress("glGetFramebufferAttachmentParameterivEXT");
+   glGenerateMipmapEXT_func = (PFNGLGENERATEMIPMAPEXTPROC) glutGetProcAddress("glGenerateMipmapEXT");
+
+   /* GL_ARB_framebuffer_object */
+   glIsRenderbuffer_func = (PFNGLISRENDERBUFFERPROC) glutGetProcAddress("glIsRenderbuffer");
+   glBindRenderbuffer_func = (PFNGLBINDRENDERBUFFERPROC) glutGetProcAddress("glBindRenderbuffer");
+   glDeleteRenderbuffers_func = (PFNGLDELETERENDERBUFFERSPROC) glutGetProcAddress("glDeleteRenderbuffers");
+   glGenRenderbuffers_func = (PFNGLGENRENDERBUFFERSPROC) glutGetProcAddress("glGenRenderbuffers");
+   glRenderbufferStorage_func = (PFNGLRENDERBUFFERSTORAGEPROC) glutGetProcAddress("glRenderbufferStorage");
+   glGetRenderbufferParameteriv_func = (PFNGLGETRENDERBUFFERPARAMETERIVPROC) glutGetProcAddress("glGetRenderbufferParameteriv");
+   glIsFramebuffer_func = (PFNGLISFRAMEBUFFERPROC) glutGetProcAddress("glIsFramebuffer");
+   glBindFramebuffer_func = (PFNGLBINDFRAMEBUFFERPROC) glutGetProcAddress("glBindFramebuffer");
+   glDeleteFramebuffers_func = (PFNGLDELETEFRAMEBUFFERSPROC) glutGetProcAddress("glDeleteFramebuffers");
+   glGenFramebuffers_func = (PFNGLGENFRAMEBUFFERSPROC) glutGetProcAddress("glGenFramebuffers");
+   glCheckFramebufferStatus_func = (PFNGLCHECKFRAMEBUFFERSTATUSPROC) glutGetProcAddress("glCheckFramebufferStatus");
+   glFramebufferTexture1D_func = (PFNGLFRAMEBUFFERTEXTURE1DPROC) glutGetProcAddress("glFramebufferTexture1D");
+   glFramebufferTexture2D_func = (PFNGLFRAMEBUFFERTEXTURE2DPROC) glutGetProcAddress("glFramebufferTexture2D");
+   glFramebufferTexture3D_func = (PFNGLFRAMEBUFFERTEXTURE3DPROC) glutGetProcAddress("glFramebufferTexture3D");
+   glFramebufferRenderbuffer_func = (PFNGLFRAMEBUFFERRENDERBUFFERPROC) glutGetProcAddress("glFramebufferRenderbuffer");
+   glGetFramebufferAttachmentParameteriv_func = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC) glutGetProcAddress("glGetFramebufferAttachmentParameteriv");
+   glGenerateMipmap_func = (PFNGLGENERATEMIPMAPPROC) glutGetProcAddress("glGenerateMipmap");
+   glBlitFramebuffer_func = (PFNGLBLITFRAMEBUFFERPROC) glutGetProcAddress("glBlitFramebuffer");
+   glRenderbufferStorageMultisample_func = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC) glutGetProcAddress("glRenderbufferStorageMultisample");
+   glFramebufferTextureLayer_func = (PFNGLFRAMEBUFFERTEXTURELAYERPROC) glutGetProcAddress("glFramebufferTextureLayer");
 }