/*
** GLimp_Init
**
** This routine is responsible for initializing the OS specific portions
** of OpenGL.
*/
void GLimp_Init( void ) {
qboolean attemptedlibGL = qfalse;
qboolean attempted3Dfx = qfalse;
qboolean success = qfalse;
char buf[1024];
cvar_t *lastValidRenderer = ri.Cvar_Get( "r_lastValidRenderer", "(uninitialized)", CVAR_ARCHIVE );
// cvar_t *cv; // bk001204 - unused
r_allowSoftwareGL = ri.Cvar_Get( "r_allowSoftwareGL", "0", CVAR_LATCH );
r_previousglDriver = ri.Cvar_Get( "r_previousglDriver", "", CVAR_ROM );
InitSig();
// Hack here so that if the UI
if ( *r_previousglDriver->string ) {
// The UI changed it on us, hack it back
// This means the renderer can't be changed on the fly
ri.Cvar_Set( "r_glDriver", r_previousglDriver->string );
}
// set up our custom error handler for X failures
XSetErrorHandler( &qXErrorHandler );
//
// load and initialize the specific OpenGL driver
//
if ( !GLW_LoadOpenGL( r_glDriver->string ) ) {
if ( !Q_stricmp( r_glDriver->string, OPENGL_DRIVER_NAME ) ) {
attemptedlibGL = qtrue;
} else if ( !Q_stricmp( r_glDriver->string, _3DFX_DRIVER_NAME ) ) {
attempted3Dfx = qtrue;
}
#if 0
// show_bug.cgi?id=455
// removing outdated Voodoo GL loading
if ( !attempted3Dfx && !success ) {
attempted3Dfx = qtrue;
if ( GLW_LoadOpenGL( _3DFX_DRIVER_NAME ) ) {
ri.Cvar_Set( "r_glDriver", _3DFX_DRIVER_NAME );
r_glDriver->modified = qfalse;
success = qtrue;
}
}
#endif
// try ICD before trying 3Dfx standalone driver
if ( !attemptedlibGL && !success ) {
attemptedlibGL = qtrue;
if ( GLW_LoadOpenGL( OPENGL_DRIVER_NAME ) ) {
ri.Cvar_Set( "r_glDriver", OPENGL_DRIVER_NAME );
r_glDriver->modified = qfalse;
success = qtrue;
}
}
if ( !success ) {
ri.Error( ERR_FATAL, "GLimp_Init() - could not load OpenGL subsystem\n" );
}
}
// Save it in case the UI stomps it
ri.Cvar_Set( "r_previousglDriver", r_glDriver->string );
// This values force the UI to disable driver selection
glConfig.driverType = GLDRV_ICD;
glConfig.hardwareType = GLHW_GENERIC;
// get our config strings
Q_strncpyz( glConfig.vendor_string, qglGetString( GL_VENDOR ), sizeof( glConfig.vendor_string ) );
Q_strncpyz( glConfig.renderer_string, qglGetString( GL_RENDERER ), sizeof( glConfig.renderer_string ) );
if ( *glConfig.renderer_string && glConfig.renderer_string[strlen( glConfig.renderer_string ) - 1] == '\n' ) {
glConfig.renderer_string[strlen( glConfig.renderer_string ) - 1] = 0;
}
Q_strncpyz( glConfig.version_string, qglGetString( GL_VERSION ), sizeof( glConfig.version_string ) );
Q_strncpyz( glConfig.extensions_string, qglGetString( GL_EXTENSIONS ), sizeof( glConfig.extensions_string ) );
//
// chipset specific configuration
//
strcpy( buf, glConfig.renderer_string );
strlwr( buf );
//
// NOTE: if changing cvars, do it within this block. This allows them
// to be overridden when testing driver fixes, etc. but only sets
// them to their default state when the hardware is first installed/run.
//
if ( Q_stricmp( lastValidRenderer->string, glConfig.renderer_string ) ) {
glConfig.hardwareType = GLHW_GENERIC;
ri.Cvar_Set( "r_textureMode", "GL_LINEAR_MIPMAP_NEAREST" );
// VOODOO GRAPHICS w/ 2MB
if ( Q_stristr( buf, "voodoo graphics/1 tmu/2 mb" ) ) {
ri.Cvar_Set( "r_picmip", "2" );
ri.Cvar_Get( "r_picmip", "1", CVAR_ARCHIVE | CVAR_LATCH );
} else
{
ri.Cvar_Set( "r_picmip", "1" );
if ( Q_stristr( buf, "rage 128" ) || Q_stristr( buf, "rage128" ) ) {
ri.Cvar_Set( "r_finish", "0" );
}
// Savage3D and Savage4 should always have trilinear enabled
else if ( Q_stristr( buf, "savage3d" ) || Q_stristr( buf, "s3 savage4" ) ) {
ri.Cvar_Set( "r_texturemode", "GL_LINEAR_MIPMAP_LINEAR" );
}
}
}
//
// this is where hardware specific workarounds that should be
// detected/initialized every startup should go.
//
if ( Q_stristr( buf, "banshee" ) || Q_stristr( buf, "Voodoo_Graphics" ) ) {
glConfig.hardwareType = GLHW_3DFX_2D3D;
} else if ( Q_stristr( buf, "rage pro" ) || Q_stristr( buf, "RagePro" ) ) {
glConfig.hardwareType = GLHW_RAGEPRO;
} else if ( Q_stristr( buf, "permedia2" ) ) {
glConfig.hardwareType = GLHW_PERMEDIA2;
} else if ( Q_stristr( buf, "riva 128" ) ) {
glConfig.hardwareType = GLHW_RIVA128;
} else if ( Q_stristr( buf, "riva tnt " ) ) {
}
ri.Cvar_Set( "r_lastValidRenderer", glConfig.renderer_string );
// initialize extensions
GLW_InitExtensions();
GLW_InitGamma();
InitSig();
return;
}
/*
** GLimp_Init
**
** This routine is responsible for initializing the OS specific portions
** of OpenGL.
*/
void GLimp_Init( void )
{
qboolean attemptedlibGL = qfalse;
qboolean attempted3Dfx = qfalse;
qboolean success = qfalse;
// guarded, as this is only relevant to SMP renderer thread
#ifdef SMP
if (!XInitThreads())
{
Com_Printf("GLimp_Init() - XInitThreads() failed, disabling r_smp\n");
ri.Cvar_Set( "r_smp", "0" );
}
#endif
r_allowSoftwareGL = ri.Cvar_Get( "r_allowSoftwareGL", "0", CVAR_LATCH );
r_previousglDriver = ri.Cvar_Get( "r_previousglDriver", "", CVAR_ROM );
InitSig();
IN_Init(); // rcg08312005 moved into glimp.
// Hack here so that if the UI
if ( *r_previousglDriver->string )
{
// The UI changed it on us, hack it back
// This means the renderer can't be changed on the fly
ri.Cvar_Set( "r_glDriver", r_previousglDriver->string );
}
// set up our custom error handler for X failures
XSetErrorHandler(&qXErrorHandler);
//
// load and initialize the specific OpenGL driver
//
if ( !GLW_LoadOpenGL( r_glDriver->string ) )
{
if ( !Q_stricmp( r_glDriver->string, OPENGL_DRIVER_NAME ) )
{
attemptedlibGL = qtrue;
} else if ( !Q_stricmp( r_glDriver->string, _3DFX_DRIVER_NAME ) )
{
attempted3Dfx = qtrue;
}
#if 0
// TTimo
// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=455
// old legacy load code, was confusing people who had a bad OpenGL setup
if ( !attempted3Dfx && !success )
{
attempted3Dfx = qtrue;
if ( GLW_LoadOpenGL( _3DFX_DRIVER_NAME ) )
{
ri.Cvar_Set( "r_glDriver", _3DFX_DRIVER_NAME );
r_glDriver->modified = qfalse;
success = qtrue;
}
}
#endif
// try ICD before trying 3Dfx standalone driver
if ( !attemptedlibGL && !success )
{
attemptedlibGL = qtrue;
if ( GLW_LoadOpenGL( OPENGL_DRIVER_NAME ) )
{
ri.Cvar_Set( "r_glDriver", OPENGL_DRIVER_NAME );
r_glDriver->modified = qfalse;
success = qtrue;
}
}
if (!success)
ri.Error( ERR_FATAL, "GLimp_Init() - could not load OpenGL subsystem\n" );
}
// Save it in case the UI stomps it
ri.Cvar_Set( "r_previousglDriver", r_glDriver->string );
// This values force the UI to disable driver selection
glConfig.driverType = GLDRV_ICD;
glConfig.hardwareType = GLHW_GENERIC;
// get our config strings
Q_strncpyz( glConfig.vendor_string, (char *)qglGetString (GL_VENDOR), sizeof( glConfig.vendor_string ) );
Q_strncpyz( glConfig.renderer_string, (char *)qglGetString (GL_RENDERER), sizeof( glConfig.renderer_string ) );
if (*glConfig.renderer_string && glConfig.renderer_string[strlen(glConfig.renderer_string) - 1] == '\n')
glConfig.renderer_string[strlen(glConfig.renderer_string) - 1] = 0;
Q_strncpyz( glConfig.version_string, (char *)qglGetString (GL_VERSION), sizeof( glConfig.version_string ) );
Q_strncpyz( glConfig.extensions_string, (char *)qglGetString (GL_EXTENSIONS), sizeof( glConfig.extensions_string ) );
GL_ResolveHardwareType( );
ri.Cvar_Set( "r_lastValidRenderer", glConfig.renderer_string );
// initialize extensions
GLW_InitExtensions();
GLW_InitGamma();
InitSig(); // not clear why this is at begin & end of function
return;
}