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xash3d-fwgs/engine/client/vid_common.c

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/*
vid_common.c - common vid component
Copyright (C) 2018 a1batross, Uncle Mike
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#include "common.h"
#include "client.h"
#include "gl_local.h"
#include "mod_local.h"
#include "input.h"
#include "vid_common.h"
#define WINDOW_NAME XASH_ENGINE_NAME " Window" // Half-Life
convar_t *gl_extensions;
convar_t *gl_texture_anisotropy;
convar_t *gl_texture_lodbias;
convar_t *gl_texture_nearest;
convar_t *gl_lightmap_nearest;
convar_t *gl_keeptjunctions;
convar_t *gl_showtextures;
convar_t *gl_detailscale;
convar_t *gl_check_errors;
convar_t *gl_polyoffset;
convar_t *gl_wireframe;
convar_t *gl_finish;
convar_t *gl_nosort;
convar_t *gl_vsync;
convar_t *gl_clear;
convar_t *gl_test;
convar_t *gl_msaa;
convar_t *gl_stencilbits;
convar_t *scr_width;
convar_t *scr_height;
convar_t *window_xpos;
convar_t *window_ypos;
convar_t *r_speeds;
convar_t *r_fullbright;
convar_t *r_norefresh;
convar_t *r_lighting_extended;
convar_t *r_lighting_modulate;
convar_t *r_lighting_ambient;
convar_t *r_detailtextures;
convar_t *r_drawentities;
convar_t *r_adjust_fov;
convar_t *r_decals;
convar_t *r_novis;
convar_t *r_nocull;
convar_t *r_lockpvs;
convar_t *r_lockfrustum;
convar_t *r_traceglow;
convar_t *r_dynamic;
convar_t *r_lightmap;
convar_t *gl_round_down;
convar_t *vid_displayfrequency;
convar_t *vid_fullscreen;
convar_t *vid_brightness;
convar_t *vid_gamma;
convar_t *vid_mode;
convar_t *vid_highdpi;
byte *r_temppool;
ref_globals_t tr;
glconfig_t glConfig;
glstate_t glState;
glwstate_t glw_state;
/*
=================
GL_SetExtension
=================
*/
void GL_SetExtension( int r_ext, int enable )
{
if( r_ext >= 0 && r_ext < GL_EXTCOUNT )
glConfig.extension[r_ext] = enable ? GL_TRUE : GL_FALSE;
else Con_Printf( S_ERROR "GL_SetExtension: invalid extension %d\n", r_ext );
}
/*
=================
GL_Support
=================
*/
qboolean GL_Support( int r_ext )
{
if( r_ext >= 0 && r_ext < GL_EXTCOUNT )
return glConfig.extension[r_ext] ? true : false;
Con_Printf( S_ERROR "GL_Support: invalid extension %d\n", r_ext );
return false;
}
/*
=================
GL_MaxTextureUnits
=================
*/
int GL_MaxTextureUnits( void )
{
if( GL_Support( GL_SHADER_GLSL100_EXT ))
return Q_min( Q_max( glConfig.max_texture_coords, glConfig.max_teximage_units ), MAX_TEXTURE_UNITS );
return glConfig.max_texture_units;
}
/*
=================
GL_CheckExtension
=================
*/
void GL_CheckExtension( const char *name, const dllfunc_t *funcs, const char *cvarname, int r_ext )
{
const dllfunc_t *func;
convar_t *parm = NULL;
const char *extensions_string;
MsgDev( D_NOTE, "GL_CheckExtension: %s ", name );
GL_SetExtension( r_ext, true );
if( cvarname )
{
// system config disable extensions
parm = Cvar_Get( cvarname, "1", FCVAR_GLCONFIG, va( CVAR_GLCONFIG_DESCRIPTION, name ));
}
if(( parm && !CVAR_TO_BOOL( parm )) || ( !CVAR_TO_BOOL( gl_extensions ) && r_ext != GL_OPENGL_110 ))
{
MsgDev( D_NOTE, "- disabled\n" );
GL_SetExtension( r_ext, false );
return; // nothing to process at
}
extensions_string = glConfig.extensions_string;
if(( name[2] == '_' || name[3] == '_' ) && !Q_strstr( extensions_string, name ))
{
GL_SetExtension( r_ext, false ); // update render info
MsgDev( D_NOTE, "- ^1failed\n" );
return;
}
// clear exports
for( func = funcs; func && func->name; func++ )
*func->func = NULL;
for( func = funcs; func && func->name != NULL; func++ )
{
// functions are cleared before all the extensions are evaluated
if((*func->func = (void *)GL_GetProcAddress( func->name )) == NULL )
GL_SetExtension( r_ext, false ); // one or more functions are invalid, extension will be disabled
}
if( GL_Support( r_ext ))
MsgDev( D_NOTE, "- ^2enabled\n" );
else MsgDev( D_NOTE, "- ^1failed\n" );
}
/*
===============
GL_SetDefaultTexState
===============
*/
static void GL_SetDefaultTexState( void )
{
int i;
memset( glState.currentTextures, -1, MAX_TEXTURE_UNITS * sizeof( *glState.currentTextures ));
memset( glState.texCoordArrayMode, 0, MAX_TEXTURE_UNITS * sizeof( *glState.texCoordArrayMode ));
memset( glState.genSTEnabled, 0, MAX_TEXTURE_UNITS * sizeof( *glState.genSTEnabled ));
for( i = 0; i < MAX_TEXTURE_UNITS; i++ )
{
glState.currentTextureTargets[i] = GL_NONE;
glState.texIdentityMatrix[i] = true;
}
}
/*
===============
GL_SetDefaultState
===============
*/
static void GL_SetDefaultState( void )
{
memset( &glState, 0, sizeof( glState ));
GL_SetDefaultTexState ();
// init draw stack
tr.draw_list = &tr.draw_stack[0];
tr.draw_stack_pos = 0;
}
/*
=================
VID_StartupGamma
=================
*/
void VID_StartupGamma( void )
{
BuildGammaTable( vid_gamma->value, vid_brightness->value );
MsgDev( D_NOTE, "VID_StartupGamma: gamma %g brightness %g\n", vid_gamma->value, vid_brightness->value );
ClearBits( vid_brightness->flags, FCVAR_CHANGED );
ClearBits( vid_gamma->flags, FCVAR_CHANGED );
}
/*
=================
VID_InitDefaultResolution
=================
*/
void VID_InitDefaultResolution( void )
{
// we need to have something valid here
// until video subsystem initialized
glState.width = 640;
glState.height = 480;
}
/*
=================
R_SaveVideoMode
=================
*/
void R_SaveVideoMode( int w, int h )
{
glState.width = w;
glState.height = h;
Cvar_FullSet( "width", va( "%i", w ), FCVAR_READ_ONLY | FCVAR_RENDERINFO );
Cvar_FullSet( "height", va( "%i", h ), FCVAR_READ_ONLY | FCVAR_RENDERINFO );
if( vid_mode->value >= 0 && vid_mode->value <= R_MaxVideoModes() )
glState.wideScreen = R_GetVideoMode( vid_mode->value ).wideScreen;
MsgDev( D_NOTE, "Set: [%dx%d]\n", w, h );
}
/*
=================
R_DescribeVIDMode
=================
*/
qboolean R_DescribeVIDMode( int width, int height )
{
int i;
for( i = 0; i < R_MaxVideoModes(); i++ )
{
vidmode_t vidmode = R_GetVideoMode( i );
if( vidmode.width == width && vidmode.height == height )
{
// found specified mode
Cvar_SetValue( "vid_mode", i );
return true;
}
}
return false;
}
/*
=================
VID_GetModeString
=================
*/
const char *VID_GetModeString( int vid_mode )
{
if( vid_mode < 0 || vid_mode > R_MaxVideoModes() )
return NULL;
return R_GetVideoMode( vid_mode ).desc;
}
/*
==================
VID_CheckChanges
check vid modes and fullscreen
==================
*/
void VID_CheckChanges( void )
{
if( FBitSet( cl_allow_levelshots->flags, FCVAR_CHANGED ))
{
GL_FreeTexture( cls.loadingBar );
SCR_RegisterTextures(); // reload 'lambda' image
ClearBits( cl_allow_levelshots->flags, FCVAR_CHANGED );
}
if( host.renderinfo_changed )
{
if( !VID_SetMode( ))
{
Sys_Error( "Can't re-initialize video subsystem\n" );
}
else
{
host.renderinfo_changed = false;
SCR_VidInit(); // tell the client.dll what vid_mode has changed
}
}
}
/*
===============
GL_SetDefaults
===============
*/
static void GL_SetDefaults( void )
{
pglFinish();
pglClearColor( 0.5f, 0.5f, 0.5f, 1.0f );
pglDisable( GL_DEPTH_TEST );
pglDisable( GL_CULL_FACE );
pglDisable( GL_SCISSOR_TEST );
pglDepthFunc( GL_LEQUAL );
pglColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
if( glState.stencilEnabled )
{
pglDisable( GL_STENCIL_TEST );
pglStencilMask( ( GLuint ) ~0 );
pglStencilFunc( GL_EQUAL, 0, ~0 );
pglStencilOp( GL_KEEP, GL_INCR, GL_INCR );
}
pglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
pglPolygonOffset( -1.0f, -2.0f );
GL_CleanupAllTextureUnits();
pglDisable( GL_BLEND );
pglDisable( GL_ALPHA_TEST );
pglDisable( GL_POLYGON_OFFSET_FILL );
pglAlphaFunc( GL_GREATER, 0.0f );
pglEnable( GL_TEXTURE_2D );
pglShadeModel( GL_SMOOTH );
pglFrontFace( GL_CCW );
pglPointSize( 1.2f );
pglLineWidth( 1.2f );
GL_Cull( GL_NONE );
}
/*
=================
R_RenderInfo_f
=================
*/
void R_RenderInfo_f( void )
{
Con_Printf( "\n" );
Con_Printf( "GL_VENDOR: %s\n", glConfig.vendor_string );
Con_Printf( "GL_RENDERER: %s\n", glConfig.renderer_string );
Con_Printf( "GL_VERSION: %s\n", glConfig.version_string );
// don't spam about extensions
if( host_developer.value >= DEV_EXTENDED )
{
Con_Printf( "GL_EXTENSIONS: %s\n", glConfig.extensions_string );
}
Con_Printf( "GL_MAX_TEXTURE_SIZE: %i\n", glConfig.max_2d_texture_size );
if( GL_Support( GL_ARB_MULTITEXTURE ))
Con_Printf( "GL_MAX_TEXTURE_UNITS_ARB: %i\n", glConfig.max_texture_units );
if( GL_Support( GL_TEXTURE_CUBEMAP_EXT ))
Con_Printf( "GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB: %i\n", glConfig.max_cubemap_size );
if( GL_Support( GL_ANISOTROPY_EXT ))
Con_Printf( "GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: %.1f\n", glConfig.max_texture_anisotropy );
if( GL_Support( GL_TEXTURE_2D_RECT_EXT ))
Con_Printf( "GL_MAX_RECTANGLE_TEXTURE_SIZE: %i\n", glConfig.max_2d_rectangle_size );
if( GL_Support( GL_TEXTURE_ARRAY_EXT ))
Con_Printf( "GL_MAX_ARRAY_TEXTURE_LAYERS_EXT: %i\n", glConfig.max_2d_texture_layers );
if( GL_Support( GL_SHADER_GLSL100_EXT ))
{
Con_Printf( "GL_MAX_TEXTURE_COORDS_ARB: %i\n", glConfig.max_texture_coords );
Con_Printf( "GL_MAX_TEXTURE_IMAGE_UNITS_ARB: %i\n", glConfig.max_teximage_units );
Con_Printf( "GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB: %i\n", glConfig.max_vertex_uniforms );
Con_Printf( "GL_MAX_VERTEX_ATTRIBS_ARB: %i\n", glConfig.max_vertex_attribs );
}
Con_Printf( "\n" );
Con_Printf( "MODE: %s\n", R_GetVideoMode(vid_mode->value).desc );
Con_Printf( "\n" );
Con_Printf( "VERTICAL SYNC: %s\n", gl_vsync->value ? "enabled" : "disabled" );
Con_Printf( "Color %d bits, Alpha %d bits, Depth %d bits, Stencil %d bits\n", glConfig.color_bits,
glConfig.alpha_bits, glConfig.depth_bits, glConfig.stencil_bits );
}
//=======================================================================
/*
=================
GL_InitCommands
=================
*/
void GL_InitCommands( void )
{
// system screen width and height (don't suppose for change from console at all)
scr_width = Cvar_Get( "width", "640", FCVAR_RENDERINFO, "screen width" );
scr_height = Cvar_Get( "height", "480", FCVAR_RENDERINFO, "screen height" );
r_speeds = Cvar_Get( "r_speeds", "0", FCVAR_ARCHIVE, "shows renderer speeds" );
r_fullbright = Cvar_Get( "r_fullbright", "0", FCVAR_CHEAT, "disable lightmaps, get fullbright for entities" );
r_norefresh = Cvar_Get( "r_norefresh", "0", 0, "disable 3D rendering (use with caution)" );
r_lighting_extended = Cvar_Get( "r_lighting_extended", "1", FCVAR_ARCHIVE, "allow to get lighting from world and bmodels" );
r_lighting_modulate = Cvar_Get( "r_lighting_modulate", "0.6", FCVAR_ARCHIVE, "lightstyles modulate scale" );
r_lighting_ambient = Cvar_Get( "r_lighting_ambient", "0.3", FCVAR_ARCHIVE, "map ambient lighting scale" );
r_adjust_fov = Cvar_Get( "r_adjust_fov", "1", FCVAR_ARCHIVE, "making FOV adjustment for wide-screens" );
r_novis = Cvar_Get( "r_novis", "0", 0, "ignore vis information (perfomance test)" );
r_nocull = Cvar_Get( "r_nocull", "0", 0, "ignore frustrum culling (perfomance test)" );
r_detailtextures = Cvar_Get( "r_detailtextures", "1", FCVAR_ARCHIVE, "enable detail textures support, use '2' for autogenerate detail.txt" );
r_lockpvs = Cvar_Get( "r_lockpvs", "0", FCVAR_CHEAT, "lockpvs area at current point (pvs test)" );
r_lockfrustum = Cvar_Get( "r_lockfrustum", "0", FCVAR_CHEAT, "lock frustrum area at current point (cull test)" );
r_dynamic = Cvar_Get( "r_dynamic", "1", FCVAR_ARCHIVE, "allow dynamic lighting (dlights, lightstyles)" );
r_traceglow = Cvar_Get( "r_traceglow", "1", FCVAR_ARCHIVE, "cull flares behind models" );
r_lightmap = Cvar_Get( "r_lightmap", "0", FCVAR_CHEAT, "lightmap debugging tool" );
r_drawentities = Cvar_Get( "r_drawentities", "1", FCVAR_CHEAT, "render entities" );
r_decals = Cvar_Get( "r_decals", "4096", FCVAR_ARCHIVE, "sets the maximum number of decals" );
window_xpos = Cvar_Get( "_window_xpos", "130", FCVAR_RENDERINFO, "window position by horizontal" );
window_ypos = Cvar_Get( "_window_ypos", "48", FCVAR_RENDERINFO, "window position by vertical" );
gl_extensions = Cvar_Get( "gl_allow_extensions", "1", FCVAR_GLCONFIG, "allow gl_extensions" );
gl_texture_nearest = Cvar_Get( "gl_texture_nearest", "0", FCVAR_ARCHIVE, "disable texture filter" );
gl_lightmap_nearest = Cvar_Get( "gl_lightmap_nearest", "0", FCVAR_ARCHIVE, "disable lightmap filter" );
gl_check_errors = Cvar_Get( "gl_check_errors", "1", FCVAR_ARCHIVE, "ignore video engine errors" );
gl_vsync = Cvar_Get( "gl_vsync", "0", FCVAR_ARCHIVE, "enable vertical syncronization" );
gl_detailscale = Cvar_Get( "gl_detailscale", "4.0", FCVAR_ARCHIVE, "default scale applies while auto-generate list of detail textures" );
gl_texture_anisotropy = Cvar_Get( "gl_anisotropy", "8", FCVAR_ARCHIVE, "textures anisotropic filter" );
gl_texture_lodbias = Cvar_Get( "gl_texture_lodbias", "0.0", FCVAR_ARCHIVE, "LOD bias for mipmapped textures (perfomance|quality)" );
gl_keeptjunctions = Cvar_Get( "gl_keeptjunctions", "1", FCVAR_ARCHIVE, "removing tjuncs causes blinking pixels" );
gl_showtextures = Cvar_Get( "r_showtextures", "0", FCVAR_CHEAT, "show all uploaded textures" );
gl_finish = Cvar_Get( "gl_finish", "0", FCVAR_ARCHIVE, "use glFinish instead of glFlush" );
gl_nosort = Cvar_Get( "gl_nosort", "0", FCVAR_ARCHIVE, "disable sorting of translucent surfaces" );
gl_clear = Cvar_Get( "gl_clear", "0", FCVAR_ARCHIVE, "clearing screen after each frame" );
gl_test = Cvar_Get( "gl_test", "0", 0, "engine developer cvar for quick testing new features" );
gl_wireframe = Cvar_Get( "gl_wireframe", "0", FCVAR_ARCHIVE|FCVAR_SPONLY, "show wireframe overlay" );
gl_msaa = Cvar_Get( "gl_msaa", "0", FCVAR_GLCONFIG, "MSAA samples. Use with caution, engine may fail with some values" );
gl_stencilbits = Cvar_Get( "gl_stencilbits", "8", FCVAR_GLCONFIG, "pixelformat stencil bits (0 - auto)" );
gl_round_down = Cvar_Get( "gl_round_down", "2", FCVAR_RENDERINFO, "round texture sizes to nearest POT value" );
// these cvar not used by engine but some mods requires this
gl_polyoffset = Cvar_Get( "gl_polyoffset", "2.0", FCVAR_ARCHIVE, "polygon offset for decals" );
// make sure gl_vsync is checked after vid_restart
SetBits( gl_vsync->flags, FCVAR_CHANGED );
vid_gamma = Cvar_Get( "gamma", "2.5", FCVAR_ARCHIVE, "gamma amount" );
vid_brightness = Cvar_Get( "brightness", "0.0", FCVAR_ARCHIVE, "brighntess factor" );
vid_mode = Cvar_Get( "vid_mode", "-1", FCVAR_RENDERINFO|FCVAR_VIDRESTART, "display resolution mode" );
vid_fullscreen = Cvar_Get( "fullscreen", "0", FCVAR_RENDERINFO|FCVAR_VIDRESTART, "enable fullscreen mode" );
vid_displayfrequency = Cvar_Get ( "vid_displayfrequency", "0", FCVAR_RENDERINFO|FCVAR_VIDRESTART, "fullscreen refresh rate" );
vid_highdpi = Cvar_Get( "vid_highdpi", "1", FCVAR_RENDERINFO|FCVAR_VIDRESTART, "Enable High-DPI mode" );
Cmd_AddCommand( "r_info", R_RenderInfo_f, "display renderer info" );
// give initial OpenGL configuration
host.apply_opengl_config = true;
Cbuf_AddText( "exec opengl.cfg\n" );
Cbuf_Execute();
host.apply_opengl_config = false;
// apply actual video mode to window
Cbuf_AddText( "exec video.cfg\n" );
Cbuf_Execute();
}
/*
=================
GL_RemoveCommands
=================
*/
void GL_RemoveCommands( void )
{
Cmd_RemoveCommand( "r_info");
}
#ifdef WIN32
typedef enum _XASH_DPI_AWARENESS
{
XASH_DPI_UNAWARE = 0,
XASH_SYSTEM_DPI_AWARE = 1,
XASH_PER_MONITOR_DPI_AWARE = 2
} XASH_DPI_AWARENESS;
void WIN_SetDPIAwareness( void )
{
HMODULE hModule;
HRESULT ( __stdcall *pSetProcessDpiAwareness )( XASH_DPI_AWARENESS );
BOOL ( __stdcall *pSetProcessDPIAware )( void );
BOOL bSuccess = FALSE;
if( ( hModule = LoadLibrary( "shcore.dll" ) ) )
{
if( ( pSetProcessDpiAwareness = (void*)GetProcAddress( hModule, "SetProcessDpiAwareness" ) ) )
{
// I hope SDL don't handle WM_DPICHANGED message
HRESULT hResult = pSetProcessDpiAwareness( XASH_SYSTEM_DPI_AWARE );
if( hResult == S_OK )
{
MsgDev( D_NOTE, "SetDPIAwareness: Success\n" );
bSuccess = TRUE;
}
else if( hResult = E_INVALIDARG ) MsgDev( D_NOTE, "SetDPIAwareness: Invalid argument\n" );
else if( hResult == E_ACCESSDENIED ) MsgDev( D_NOTE, "SetDPIAwareness: Access Denied\n" );
}
else MsgDev( D_NOTE, "SetDPIAwareness: Can't get SetProcessDpiAwareness\n" );
FreeLibrary( hModule );
}
else MsgDev( D_NOTE, "SetDPIAwareness: Can't load shcore.dll\n" );
if( !bSuccess )
{
MsgDev( D_NOTE, "SetDPIAwareness: Trying SetProcessDPIAware...\n" );
if( ( hModule = LoadLibrary( "user32.dll" ) ) )
{
if( ( pSetProcessDPIAware = ( void* )GetProcAddress( hModule, "SetProcessDPIAware" ) ) )
{
// I hope SDL don't handle WM_DPICHANGED message
BOOL hResult = pSetProcessDPIAware();
if( hResult )
{
MsgDev( D_NOTE, "SetDPIAwareness: Success\n" );
bSuccess = TRUE;
}
else MsgDev( D_NOTE, "SetDPIAwareness: fail\n" );
}
else MsgDev( D_NOTE, "SetDPIAwareness: Can't get SetProcessDPIAware\n" );
FreeLibrary( hModule );
}
else MsgDev( D_NOTE, "SetDPIAwareness: Can't load user32.dll\n" );
}
}
#endif
static void SetWidthAndHeightFromCommandLine()
{
int width;
int height;
Sys_GetIntFromCmdLine( "-width", &width );
Sys_GetIntFromCmdLine( "-height", &height );
if( width < 1 || height < 1 )
{
// Not specified or invalid, so don't bother.
return;
}
Cvar_SetValue( "vid_mode", VID_NOMODE );
Cvar_SetValue( "width", width );
Cvar_SetValue( "height", height );
}
static void SetFullscreenModeFromCommandLine( )
{
#ifndef __ANDROID__
if ( Sys_CheckParm("-fullscreen") )
{
Cvar_Set( "fullscreen", "1" );
}
else if ( Sys_CheckParm( "-windowed" ) )
{
Cvar_Set( "fullscreen", "0" );
}
#endif
}
/*
===============
R_Init
===============
*/
qboolean R_Init( void )
{
if( glw_state.initialized )
return true;
GL_InitCommands();
GL_InitRandomTable();
// Set screen resolution and fullscreen mode if passed in on command line.
// This is done after executing opengl.cfg, as the command line values should take priority.
SetWidthAndHeightFromCommandLine();
SetFullscreenModeFromCommandLine();
GL_SetDefaultState();
#ifdef WIN32
WIN_SetDPIAwareness( );
#endif
// create the window and set up the context
if( !R_Init_OpenGL( ))
{
GL_RemoveCommands();
R_Free_OpenGL();
Sys_Error( "Can't initialize video subsystem\nProbably driver was not installed" );
return false;
}
host.renderinfo_changed = false;
r_temppool = Mem_AllocPool( "Render Zone" );
GL_InitExtensions();
GL_SetDefaults();
R_InitImages();
R_SpriteInit();
R_StudioInit();
R_AliasInit();
R_ClearDecals();
R_ClearScene();
// initialize screen
SCR_Init();
return true;
}
/*
===============
R_Shutdown
===============
*/
void R_Shutdown( void )
{
model_t *mod;
int i;
if( !glw_state.initialized )
return;
// release SpriteTextures
for( i = 1, mod = clgame.sprites; i < MAX_CLIENT_SPRITES; i++, mod++ )
{
if( !mod->name[0] ) continue;
Mod_UnloadSpriteModel( mod );
}
memset( clgame.sprites, 0, sizeof( clgame.sprites ));
GL_RemoveCommands();
R_ShutdownImages();
Mem_FreePool( &r_temppool );
// shut down OS specific OpenGL stuff like contexts, etc.
R_Free_OpenGL();
}
/*
=================
GL_CheckForErrors
obsolete
=================
*/
void GL_CheckForErrors_( const char *filename, const int fileline )
{
int err;
char *str;
if( !gl_check_errors->value )
return;
if(( err = pglGetError( )) == GL_NO_ERROR )
return;
switch( err )
{
case GL_STACK_OVERFLOW:
str = "GL_STACK_OVERFLOW";
break;
case GL_STACK_UNDERFLOW:
str = "GL_STACK_UNDERFLOW";
break;
case GL_INVALID_ENUM:
str = "GL_INVALID_ENUM";
break;
case GL_INVALID_VALUE:
str = "GL_INVALID_VALUE";
break;
case GL_INVALID_OPERATION:
str = "GL_INVALID_OPERATION";
break;
case GL_OUT_OF_MEMORY:
str = "GL_OUT_OF_MEMORY";
break;
default:
str = "UNKNOWN ERROR";
break;
}
Con_Printf( S_OPENGL_ERROR "%s (called at %s:%i)\n", str, filename, fileline );
}
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