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fix crashes due to X returning garbage when asked for an extension function

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Glenn Maynard
2004-05-24 03:56:08 +00:00
parent 0c9c336dc3
commit b3125ac086
1 changed files with 39 additions and 14 deletions
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stepmania/src/RageDisplay_OGL.cpp
+39 -14
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@@ -630,23 +630,48 @@ void SetupExtensions()
const float fGLUVersion = (float) atof( (const char *) gluGetString(GLU_VERSION) );
g_gluVersion = int(roundf(fGLUVersion * 10));
/* Find extension functions. */
/* Reset extensions. */
GLExt.Reset();
#if !defined(DARWIN)
GLExt.wglSwapIntervalEXT = (PWSWAPINTERVALEXTPROC) wind->GetProcAddress("wglSwapIntervalEXT");
#else
GLExt.wglSwapIntervalEXT = wglSwapIntervalEXT;
/*
* Find extension functions.
*
* X11R6.7.0 (or possibly ATI's drivers) seem to be returning bogus values for glBindBufferARB
* if we don't actually check for GL_ARB_vertex_buffer_object.
* https://sf.net/tracker/download.php?group_id=37892&atid=421366&file_id=88086&aid=958820
* https://sf.net/tracker/download.php?group_id=37892&atid=421366&file_id=85542&aid=944836
*
* Let's check them all, to be safe.
*/
#if defined(WIN32)
if( HasExtension("WGL_EXT_swap_control") )
GLExt.wglSwapIntervalEXT = (PWSWAPINTERVALEXTPROC) wind->GetProcAddress("wglSwapIntervalEXT");
#elif defined(DARWIN)
GLExt.wglSwapIntervalEXT = wglSwapIntervalEXT;
#endif
GLExt.glColorTableEXT = (PFNGLCOLORTABLEPROC) wind->GetProcAddress("glColorTableEXT");
GLExt.glGetColorTableParameterivEXT = (PFNGLCOLORTABLEPARAMETERIVPROC) wind->GetProcAddress("glGetColorTableParameterivEXT");
GLExt.glActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC) wind->GetProcAddress("glActiveTextureARB");
GLExt.glGenBuffersARB = (PFNGLGENBUFFERSARBPROC) wind->GetProcAddress("glGenBuffersARB");
GLExt.glBindBufferARB = (PFNGLBINDBUFFERARBPROC) wind->GetProcAddress("glBindBufferARB");
GLExt.glBufferDataARB = (PFNGLBUFFERDATAARBPROC) wind->GetProcAddress("glBufferDataARB");
GLExt.glBufferSubDataARB = (PFNGLBUFFERSUBDATAARBPROC) wind->GetProcAddress("glBufferSubDataARB");
GLExt.glDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC) wind->GetProcAddress("glDeleteBuffersARB");
GLExt.glDrawRangeElements = (PFNGLDRAWRANGEELEMENTSPROC) wind->GetProcAddress("glDrawRangeElements");
if( HasExtension("EXT_paletted_texture") )
{
GLExt.glColorTableEXT = (PFNGLCOLORTABLEPROC) wind->GetProcAddress("glColorTableEXT");
GLExt.glGetColorTableParameterivEXT = (PFNGLCOLORTABLEPARAMETERIVPROC) wind->GetProcAddress("glGetColorTableParameterivEXT");
}
if( HasExtension("GL_ARB_multitexture") )
GLExt.glActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC) wind->GetProcAddress("glActiveTextureARB");
if( HasExtension("GL_ARB_vertex_buffer_object") )
{
GLExt.glGenBuffersARB = (PFNGLGENBUFFERSARBPROC) wind->GetProcAddress("glGenBuffersARB");
GLExt.glBindBufferARB = (PFNGLBINDBUFFERARBPROC) wind->GetProcAddress("glBindBufferARB");
GLExt.glBufferDataARB = (PFNGLBUFFERDATAARBPROC) wind->GetProcAddress("glBufferDataARB");
GLExt.glBufferSubDataARB = (PFNGLBUFFERSUBDATAARBPROC) wind->GetProcAddress("glBufferSubDataARB");
GLExt.glDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC) wind->GetProcAddress("glDeleteBuffersARB");
}
if( HasExtension("GL_EXT_draw_range_elements") )
GLExt.glDrawRangeElements = (PFNGLDRAWRANGEELEMENTSPROC) wind->GetProcAddress("glDrawRangeElements");
g_bEXT_texture_env_combine = HasExtension("GL_EXT_texture_env_combine");
g_bGL_EXT_bgra = HasExtension("GL_EXT_bgra");
CheckPalettedTextures();