PDGL_API void pdglDepthFunc(int func)
{
if(pglDepthFunc)
{ pglDepthFunc(func); return; }
pglDepthFunc=pdglGetProcAddress("glDepthFunc");
pglDepthFunc(func);
}
/*
=============
R_Clear
=============
*/
static void R_Clear( int bitMask )
{
int bits;
if( gl_overview->integer )
pglClearColor( 0.0f, 1.0f, 0.0f, 1.0f ); // green background (Valve rules)
else pglClearColor( 0.5f, 0.5f, 0.5f, 1.0f );
bits = GL_DEPTH_BUFFER_BIT;
if( RI.drawWorld && r_fastsky->integer )
bits |= GL_COLOR_BUFFER_BIT;
if( glState.stencilEnabled )
bits |= GL_STENCIL_BUFFER_BIT;
bits &= bitMask;
pglClear( bits );
// change ordering for overview
if( RI.drawOrtho )
{
gldepthmin = 1.0f;
gldepthmax = 0.0f;
}
else
{
gldepthmin = 0.0f;
gldepthmax = 1.0f;
}
pglDepthFunc( GL_LEQUAL );
pglDepthRange( gldepthmin, gldepthmax );
}
// set depth buffer compare mode
static void ogl_DepthFunc( GfxComp eFunc)
{
// check consistency
ASSERT( _pGfx->gl_eCurrentAPI==GAT_OGL);
GLenum gleFunc;
#ifndef NDEBUG
GfxComp gfxFunc;
pglGetIntegerv( GL_DEPTH_FUNC, (GLint*)&gleFunc);
OGL_CHECKERROR;
gfxFunc = CompFromOGL( gleFunc);
ASSERT( gfxFunc==GFX_eDepthFunc);
#endif
// cached?
if( eFunc==GFX_eDepthFunc && gap_bOptimizeStateChanges) return;
_sfStats.StartTimer(CStatForm::STI_GFXAPI);
gleFunc = CompToOGL(eFunc);
pglDepthFunc(gleFunc);
OGL_CHECKERROR;
GFX_eDepthFunc = eFunc;
_sfStats.StopTimer(CStatForm::STI_GFXAPI);
}
