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Create GL2.1 context on Linux before trying to create GL3.0.

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This commit is contained in:
bkaradzic 2013-01-06 21:50:55 -08:00
parent b889e78841
commit 97bcef11d9
1 changed files with 21 additions and 12 deletions
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23
src/renderer_gl.cpp
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@ -375,7 +375,7 @@ namespace bgfx
};
// Find suitable config
GLXFBConfig bestconfig = NULL;
GLXFBConfig bestConfig = NULL;
int nconfigs;
GLXFBConfig* configs = glXChooseFBConfig(display, DefaultScreen(display), glxAttribs, &nconfigs);
@ -401,7 +401,7 @@ namespace bgfx
if (validconfig)
{
bestconfig = configs[ii];
bestConfig = configs[ii];
break;
}
}
@ -435,12 +435,15 @@ namespace bgfx
XFlush(display);
XFree(visualInfo);
BX_TRACE("create context");
BX_TRACE("Create GL 2.1 context.");
m_context = glXCreateContext(display, visualInfo, 0, GL_TRUE);
BGFX_FATAL(NULL != m_context, Fatal::UnableToInitialize, "Failed to create GL 2.1 context.");
typedef GLXContext (*glXCreateContextAttribsARBProc)(Display*, GLXFBConfig, GLXContext, Bool, const int*);
glXCreateContextAttribsARBProc glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)glXGetProcAddress((const GLubyte*)"glXCreateContextAttribsARB");
BGFX_FATAL(glXCreateContextAttribsARB, Fatal::UnableToInitialize, "Failed to get glXCreateContextAttribsARB.");
if (NULL != glXCreateContextAttribsARB)
{
BX_TRACE("Create GL 3.0 context.");
const int contextArrib[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
@ -448,8 +451,14 @@ namespace bgfx
None,
};
m_context = glXCreateContextAttribsARB(display, bestconfig, 0, True, contextArrib);
BGFX_FATAL(m_context, Fatal::UnableToInitialize, "Failed to create GLX context.");
GLXContext context = glXCreateContextAttribsARB(display, bestConfig, 0, True, contextArrib);
if (NULL != context)
{
glXDestroyContext(display, m_context);
m_context = context;
}
}
glXMakeCurrent(display, window, m_context);