//Anything above this #include will be ignored by the compiler #include "../qcommon/exe_headers.h" /* ** WIN_GLIMP.C ** ** This file contains ALL Win32 specific stuff having to do with the ** OpenGL refresh. When a port is being made the following functions ** must be implemented by the port: ** ** GLimp_EndFrame ** GLimp_Init ** GLimp_LogComment ** GLimp_Shutdown ** ** Note that the GLW_xxx functions are Windows specific GL-subsystem ** related functions that are relevant ONLY to win_glimp.c */ #include #include "../renderer/tr_local.h" #include "resource.h" #include "glw_win.h" #include "win_local.h" #include "../qcommon/stringed_ingame.h" extern void WG_CheckHardwareGamma( void ); extern void WG_RestoreGamma( void ); typedef enum { RSERR_OK, RSERR_INVALID_FULLSCREEN, RSERR_INVALID_MODE, RSERR_UNKNOWN } rserr_t; #define TRY_PFD_SUCCESS 0 #define TRY_PFD_FAIL_SOFT 1 #define TRY_PFD_FAIL_HARD 2 #define WINDOW_CLASS_NAME "Jedi KnightŪ: Jedi Academy (MP)" static void GLW_InitExtensions( void ); static rserr_t GLW_SetMode( int mode, int colorbits, qboolean cdsFullscreen ); static qboolean s_classRegistered = qfalse; // // function declaration // void QGL_EnableLogging( qboolean enable ); qboolean QGL_Init( const char *dllname ); void QGL_Shutdown( void ); // // variable declarations // glwstate_t glw_state; cvar_t *r_allowSoftwareGL; // don't abort out if the pixelformat claims software // Whether the current hardware supports dynamic glows/flares. extern bool g_bDynamicGlowSupported; // Hack variable for deciding which kind of texture rectangle thing to do (for some // reason it acts different on radeon! It's against the spec!). bool g_bTextureRectangleHack = false; /* ** GLW_StartDriverAndSetMode */ static qboolean GLW_StartDriverAndSetMode( int mode, int colorbits, qboolean cdsFullscreen ) { rserr_t err; err = GLW_SetMode( mode, colorbits, cdsFullscreen ); switch ( err ) { case RSERR_INVALID_FULLSCREEN: Com_Printf("...WARNING: fullscreen unavailable in this mode\n" ); return qfalse; case RSERR_INVALID_MODE: Com_Printf ("...WARNING: could not set the given mode (%d)\n", mode ); return qfalse; default: break; } return qtrue; } /* ** ChoosePFD ** ** Helper function that replaces ChoosePixelFormat. */ #define MAX_PFDS 256 static int GLW_ChoosePFD( HDC hDC, PIXELFORMATDESCRIPTOR *pPFD ) { PIXELFORMATDESCRIPTOR pfds[MAX_PFDS+1]; int maxPFD = 0; int i; int bestMatch = 0; Com_Printf ("...GLW_ChoosePFD( %d, %d, %d )\n", ( int ) pPFD->cColorBits, ( int ) pPFD->cDepthBits, ( int ) pPFD->cStencilBits ); // count number of PFDs maxPFD = DescribePixelFormat( hDC, 1, sizeof( PIXELFORMATDESCRIPTOR ), &pfds[0] ); if ( maxPFD > MAX_PFDS ) { Com_Printf (S_COLOR_YELLOW "...numPFDs > MAX_PFDS (%d > %d)\n", maxPFD, MAX_PFDS ); maxPFD = MAX_PFDS; } Com_Printf ("...%d PFDs found\n", maxPFD - 1 ); // grab information for ( i = 1; i <= maxPFD; i++ ) { DescribePixelFormat( hDC, i, sizeof( PIXELFORMATDESCRIPTOR ), &pfds[i] ); } // look for a best match for ( i = 1; i <= maxPFD; i++ ) { // // make sure this has hardware acceleration // if ( ( pfds[i].dwFlags & PFD_GENERIC_FORMAT ) != 0 ) { if ( !r_allowSoftwareGL->integer ) { if ( r_verbose->integer ) { Com_Printf ("...PFD %d rejected, software acceleration\n", i ); } continue; } } // verify pixel type if ( pfds[i].iPixelType != PFD_TYPE_RGBA ) { if ( r_verbose->integer ) { Com_Printf ("...PFD %d rejected, not RGBA\n", i ); } continue; } // verify proper flags if ( ( ( pfds[i].dwFlags & pPFD->dwFlags ) & pPFD->dwFlags ) != pPFD->dwFlags ) { if ( r_verbose->integer ) { Com_Printf ("...PFD %d rejected, improper flags (%x instead of %x)\n", i, pfds[i].dwFlags, pPFD->dwFlags ); } continue; } // verify enough bits if ( pfds[i].cDepthBits < 15 ) { continue; } if ( ( pfds[i].cStencilBits < 4 ) && ( pPFD->cStencilBits > 0 ) ) { continue; } // // selection criteria (in order of priority): // // PFD_STEREO // colorBits // depthBits // stencilBits // if ( bestMatch ) { // check stereo if ( ( pfds[i].dwFlags & PFD_STEREO ) && ( !( pfds[bestMatch].dwFlags & PFD_STEREO ) ) && ( pPFD->dwFlags & PFD_STEREO ) ) { bestMatch = i; continue; } if ( !( pfds[i].dwFlags & PFD_STEREO ) && ( pfds[bestMatch].dwFlags & PFD_STEREO ) && ( pPFD->dwFlags & PFD_STEREO ) ) { bestMatch = i; continue; } // check color if ( pfds[bestMatch].cColorBits != pPFD->cColorBits ) { // prefer perfect match if ( pfds[i].cColorBits == pPFD->cColorBits ) { bestMatch = i; continue; } // otherwise if this PFD has more bits than our best, use it else if ( pfds[i].cColorBits > pfds[bestMatch].cColorBits ) { bestMatch = i; continue; } } // check depth if ( pfds[bestMatch].cDepthBits != pPFD->cDepthBits ) { // prefer perfect match if ( pfds[i].cDepthBits == pPFD->cDepthBits ) { bestMatch = i; continue; } // otherwise if this PFD has more bits than our best, use it else if ( pfds[i].cDepthBits > pfds[bestMatch].cDepthBits ) { bestMatch = i; continue; } } // check stencil if ( pfds[bestMatch].cStencilBits != pPFD->cStencilBits ) { // prefer perfect match if ( pfds[i].cStencilBits == pPFD->cStencilBits ) { bestMatch = i; continue; } // otherwise if this PFD has more bits than our best, use it else if ( ( pfds[i].cStencilBits > pfds[bestMatch].cStencilBits ) && ( pPFD->cStencilBits > 0 ) ) { bestMatch = i; continue; } } } else { bestMatch = i; } } if ( !bestMatch ) return 0; if ( ( pfds[bestMatch].dwFlags & PFD_GENERIC_FORMAT ) != 0 ) { if ( !r_allowSoftwareGL->integer ) { Com_Printf ("...no hardware acceleration found\n" ); return 0; } else { Com_Printf ("...using software emulation\n" ); } } else if ( pfds[bestMatch].dwFlags & PFD_GENERIC_ACCELERATED ) { Com_Printf ("...MCD acceleration found\n" ); } else { Com_Printf ("...hardware acceleration found\n" ); } *pPFD = pfds[bestMatch]; return bestMatch; } /* ** void GLW_CreatePFD ** ** Helper function zeros out then fills in a PFD */ static void GLW_CreatePFD( PIXELFORMATDESCRIPTOR *pPFD, int colorbits, int depthbits, int stencilbits, qboolean stereo ) { PIXELFORMATDESCRIPTOR src = { sizeof(PIXELFORMATDESCRIPTOR), // size of this pfd 1, // version number PFD_DRAW_TO_WINDOW | // support window PFD_SUPPORT_OPENGL | // support OpenGL PFD_DOUBLEBUFFER, // double buffered PFD_TYPE_RGBA, // RGBA type 24, // 24-bit color depth 0, 0, 0, 0, 0, 0, // color bits ignored 0, // no alpha buffer 0, // shift bit ignored 0, // no accumulation buffer 0, 0, 0, 0, // accum bits ignored 24, // 24-bit z-buffer 8, // 8-bit stencil buffer 0, // no auxiliary buffer PFD_MAIN_PLANE, // main layer 0, // reserved 0, 0, 0 // layer masks ignored }; src.cColorBits = colorbits; src.cDepthBits = depthbits; src.cStencilBits = stencilbits; if ( stereo ) { Com_Printf ("...attempting to use stereo\n" ); src.dwFlags |= PFD_STEREO; glConfig.stereoEnabled = qtrue; } else { glConfig.stereoEnabled = qfalse; } *pPFD = src; } /* ** GLW_MakeContext */ static int GLW_MakeContext( PIXELFORMATDESCRIPTOR *pPFD ) { int pixelformat; // // don't putz around with pixelformat if it's already set (e.g. this is a soft // reset of the graphics system) // if ( !glw_state.pixelFormatSet ) { // // choose, set, and describe our desired pixel format. If we're // using a minidriver then we need to bypass the GDI functions, // otherwise use the GDI functions. // if ( ( pixelformat = GLW_ChoosePFD( glw_state.hDC, pPFD ) ) == 0 ) { Com_Printf ("...GLW_ChoosePFD failed\n"); return TRY_PFD_FAIL_SOFT; } Com_Printf ("...PIXELFORMAT %d selected\n", pixelformat ); DescribePixelFormat( glw_state.hDC, pixelformat, sizeof( *pPFD ), pPFD ); if ( SetPixelFormat( glw_state.hDC, pixelformat, pPFD ) == FALSE ) { Com_Printf ( "...SetPixelFormat failed\n", glw_state.hDC ); return TRY_PFD_FAIL_SOFT; } glw_state.pixelFormatSet = qtrue; } // // startup the OpenGL subsystem by creating a context and making it current // if ( !glw_state.hGLRC ) { Com_Printf ("...creating GL context: " ); if ( ( glw_state.hGLRC = qwglCreateContext( glw_state.hDC ) ) == 0 ) { Com_Printf ( "failed\n"); return TRY_PFD_FAIL_HARD; } Com_Printf ("succeeded\n" ); Com_Printf ("...making context current: " ); if ( !qwglMakeCurrent( glw_state.hDC, glw_state.hGLRC ) ) { qwglDeleteContext( glw_state.hGLRC ); glw_state.hGLRC = NULL; Com_Printf ( "failed\n"); return TRY_PFD_FAIL_HARD; } Com_Printf ("succeeded\n" ); } return TRY_PFD_SUCCESS; } /* ** GLW_InitDriver ** ** - get a DC if one doesn't exist ** - create an HGLRC if one doesn't exist */ static qboolean GLW_InitDriver( int colorbits ) { int tpfd; int depthbits, stencilbits; static PIXELFORMATDESCRIPTOR pfd; // save between frames since 'tr' gets cleared Com_Printf ("Initializing OpenGL driver\n" ); // // get a DC for our window if we don't already have one allocated // if ( glw_state.hDC == NULL ) { Com_Printf ("...getting DC: " ); if ( ( glw_state.hDC = GetDC( g_wv.hWnd ) ) == NULL ) { Com_Printf ("failed\n" ); return qfalse; } Com_Printf ("succeeded\n" ); } if ( colorbits == 0 ) { colorbits = glw_state.desktopBitsPixel; } // // implicitly assume Z-buffer depth == desktop color depth // if ( r_depthbits->integer == 0 ) { if ( colorbits > 16 ) { depthbits = 24; } else { depthbits = 16; } } else { depthbits = r_depthbits->integer; } // // do not allow stencil if Z-buffer depth likely won't contain it // stencilbits = r_stencilbits->integer; if ( depthbits < 24 ) { stencilbits = 0; } // // make two attempts to set the PIXELFORMAT // // // first attempt: r_colorbits, depthbits, and r_stencilbits // if ( !glw_state.pixelFormatSet ) { GLW_CreatePFD( &pfd, colorbits, depthbits, stencilbits, (qboolean)r_stereo->integer ); if ( ( tpfd = GLW_MakeContext( &pfd ) ) != TRY_PFD_SUCCESS ) { if ( tpfd == TRY_PFD_FAIL_HARD ) { Com_Printf (S_COLOR_YELLOW "...failed hard\n" ); return qfalse; } // // punt if we've already tried the desktop bit depth and no stencil bits // if ( ( r_colorbits->integer == glw_state.desktopBitsPixel ) && ( stencilbits == 0 ) ) { ReleaseDC( g_wv.hWnd, glw_state.hDC ); glw_state.hDC = NULL; Com_Printf ("...failed to find an appropriate PIXELFORMAT\n" ); return qfalse; } // // second attempt: desktop's color bits and no stencil // if ( colorbits > glw_state.desktopBitsPixel ) { colorbits = glw_state.desktopBitsPixel; } GLW_CreatePFD( &pfd, colorbits, depthbits, 0, (qboolean)r_stereo->integer ); if ( GLW_MakeContext( &pfd ) != TRY_PFD_SUCCESS ) { if ( glw_state.hDC ) { ReleaseDC( g_wv.hWnd, glw_state.hDC ); glw_state.hDC = NULL; } Com_Printf ("...failed to find an appropriate PIXELFORMAT\n" ); return qfalse; } } /* ** report if stereo is desired but unavailable */ if ( !( pfd.dwFlags & PFD_STEREO ) && ( r_stereo->integer != 0 ) ) { Com_Printf ("...failed to select stereo pixel format\n" ); glConfig.stereoEnabled = qfalse; } } /* ** store PFD specifics */ glConfig.colorBits = ( int ) pfd.cColorBits; glConfig.depthBits = ( int ) pfd.cDepthBits; glConfig.stencilBits = ( int ) pfd.cStencilBits; return qtrue; } /* ** GLW_CreateWindow ** ** Responsible for creating the Win32 window and initializing the OpenGL driver. */ #define WINDOW_STYLE (WS_OVERLAPPED|WS_BORDER|WS_CAPTION|WS_VISIBLE) static qboolean GLW_CreateWindow( int width, int height, int colorbits, qboolean cdsFullscreen ) { RECT r; cvar_t *vid_xpos, *vid_ypos; int stylebits; int x, y, w, h; int exstyle; // // register the window class if necessary // if ( !s_classRegistered ) { WNDCLASS wc; memset( &wc, 0, sizeof( wc ) ); wc.style = 0; wc.lpfnWndProc = (WNDPROC) glw_state.wndproc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = g_wv.hInstance; wc.hIcon = LoadIcon( g_wv.hInstance, MAKEINTRESOURCE(IDI_ICON1)); wc.hCursor = LoadCursor (NULL,IDC_ARROW); wc.hbrBackground = 0;//(HBRUSH__ *)COLOR_GRAYTEXT; wc.lpszMenuName = 0; wc.lpszClassName = WINDOW_CLASS_NAME; if ( !RegisterClass( &wc ) ) { Com_Error( ERR_FATAL, "GLW_CreateWindow: could not register window class" ); } s_classRegistered = qtrue; // Com_Printf ("...registered window class\n" ); } // // create the HWND if one does not already exist // if ( !g_wv.hWnd ) { // // compute width and height // r.left = 0; r.top = 0; r.right = width; r.bottom = height; if ( cdsFullscreen ) { exstyle = WS_EX_TOPMOST; stylebits = WS_SYSMENU|WS_POPUP|WS_VISIBLE; //sysmenu gives you the icon } else { exstyle = 0; stylebits = WS_SYSMENU|WINDOW_STYLE|WS_MINIMIZEBOX; AdjustWindowRect (&r, stylebits, FALSE); } w = r.right - r.left; h = r.bottom - r.top; if ( cdsFullscreen ) { x = 0; y = 0; } else { vid_xpos = Cvar_Get ("vid_xpos", "", 0); vid_ypos = Cvar_Get ("vid_ypos", "", 0); x = vid_xpos->integer; y = vid_ypos->integer; // adjust window coordinates if necessary // so that the window is completely on screen if ( x < 0 ) x = 0; if ( y < 0 ) y = 0; if ( w < glw_state.desktopWidth && h < glw_state.desktopHeight ) { if ( x + w > glw_state.desktopWidth ) x = ( glw_state.desktopWidth - w ); if ( y + h > glw_state.desktopHeight ) y = ( glw_state.desktopHeight - h ); } } g_wv.hWnd = CreateWindowEx ( exstyle, WINDOW_CLASS_NAME, WINDOW_CLASS_NAME, stylebits, x, y, w, h, NULL, NULL, g_wv.hInstance, NULL); if ( !g_wv.hWnd ) { Com_Error (ERR_FATAL, "GLW_CreateWindow() - Couldn't create window"); } ShowWindow( g_wv.hWnd, SW_SHOW ); UpdateWindow( g_wv.hWnd ); Com_Printf ("...created window@%d,%d (%dx%d)\n", x, y, w, h ); } else { Com_Printf ("...window already present, CreateWindowEx skipped\n" ); } if ( !GLW_InitDriver( colorbits ) ) { ShowWindow( g_wv.hWnd, SW_HIDE ); DestroyWindow( g_wv.hWnd ); g_wv.hWnd = NULL; return qfalse; } SetForegroundWindow( g_wv.hWnd ); SetFocus( g_wv.hWnd ); return qtrue; } static void PrintCDSError( int value ) { switch ( value ) { case DISP_CHANGE_RESTART: Com_Printf ("restart required\n" ); break; case DISP_CHANGE_BADPARAM: Com_Printf ("bad param\n" ); break; case DISP_CHANGE_BADFLAGS: Com_Printf ("bad flags\n" ); break; case DISP_CHANGE_FAILED: Com_Printf ("DISP_CHANGE_FAILED\n" ); break; case DISP_CHANGE_BADMODE: Com_Printf ("bad mode\n" ); break; case DISP_CHANGE_NOTUPDATED: Com_Printf ("not updated\n" ); break; default: Com_Printf ("unknown error %d\n", value ); break; } } /* ** GLW_SetMode */ static rserr_t GLW_SetMode( int mode, int colorbits, qboolean cdsFullscreen ) { HDC hDC; const char *win_fs[] = { "W", "FS" }; int cdsRet; DEVMODE dm; // // print out informational messages // Com_Printf ("...setting mode %d:", mode ); if ( !R_GetModeInfo( &glConfig.vidWidth, &glConfig.vidHeight, mode ) ) { Com_Printf (" invalid mode\n" ); return RSERR_INVALID_MODE; } Com_Printf (" %d %d %s\n", glConfig.vidWidth, glConfig.vidHeight, win_fs[cdsFullscreen] ); // // check our desktop attributes // hDC = GetDC( GetDesktopWindow() ); glw_state.desktopBitsPixel = GetDeviceCaps( hDC, BITSPIXEL ); glw_state.desktopWidth = GetDeviceCaps( hDC, HORZRES ); glw_state.desktopHeight = GetDeviceCaps( hDC, VERTRES ); ReleaseDC( GetDesktopWindow(), hDC ); // // verify desktop bit depth // if ( glw_state.desktopBitsPixel < 15 || glw_state.desktopBitsPixel == 24 ) { if (!cdsFullscreen && (colorbits == 0 || colorbits >= 15 ) ) { // since I can't be bothered trying to mess around with asian codepages and MBCS stuff for a windows // error box that'll only appear if something's seriously fucked then I'm going to fallback to // english text when these would otherwise be used... // char sErrorHead[1024]; // ott extern qboolean Language_IsAsian(void); Q_strncpyz(sErrorHead, Language_IsAsian() ? "Low Desktop Color Depth" : SE_GetString("CON_TEXT_LOW_DESKTOP_COLOUR_DEPTH"), sizeof(sErrorHead) ); const char *psErrorBody = Language_IsAsian() ? "It is highly unlikely that a correct windowed\n" "display can be initialized with the current\n" "desktop display depth. Select 'OK' to try\n" "anyway. Select 'Cancel' to try a fullscreen\n" "mode instead." : SE_GetString("CON_TEXT_TRY_ANYWAY"); if ( MessageBox( NULL, psErrorBody, sErrorHead, MB_OKCANCEL | MB_ICONEXCLAMATION ) != IDOK ) { return RSERR_INVALID_MODE; } } } // do a CDS if needed if ( cdsFullscreen ) { memset( &dm, 0, sizeof( dm ) ); dm.dmSize = sizeof( dm ); dm.dmPelsWidth = glConfig.vidWidth; dm.dmPelsHeight = glConfig.vidHeight; dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT; if ( r_displayRefresh->integer != 0 ) { dm.dmDisplayFrequency = r_displayRefresh->integer; dm.dmFields |= DM_DISPLAYFREQUENCY; } // try to change color depth if possible if ( colorbits != 0 ) { if ( glw_state.allowdisplaydepthchange ) { dm.dmBitsPerPel = colorbits; dm.dmFields |= DM_BITSPERPEL; Com_Printf ("...using colorsbits of %d\n", colorbits ); } else { Com_Printf ("WARNING:...changing depth not supported on Win95 < pre-OSR 2.x\n" ); } } else { Com_Printf ("...using desktop display depth of %d\n", glw_state.desktopBitsPixel ); } // // if we're already in fullscreen then just create the window // if ( glw_state.cdsFullscreen ) { Com_Printf ("...already fullscreen, avoiding redundant CDS\n" ); if ( !GLW_CreateWindow ( glConfig.vidWidth, glConfig.vidHeight, colorbits, qtrue ) ) { Com_Printf ("...restoring display settings\n" ); ChangeDisplaySettings( 0, 0 ); return RSERR_INVALID_MODE; } } // // need to call CDS // else { Com_Printf ("...calling CDS: " ); // try setting the exact mode requested, because some drivers don't report // the low res modes in EnumDisplaySettings, but still work if ( ( cdsRet = ChangeDisplaySettings( &dm, CDS_FULLSCREEN ) ) == DISP_CHANGE_SUCCESSFUL ) { Com_Printf ("ok\n" ); if ( !GLW_CreateWindow ( glConfig.vidWidth, glConfig.vidHeight, colorbits, qtrue) ) { Com_Printf ("...restoring display settings\n" ); ChangeDisplaySettings( 0, 0 ); return RSERR_INVALID_MODE; } glw_state.cdsFullscreen = qtrue; } else { // // the exact mode failed, so scan EnumDisplaySettings for the next largest mode // DEVMODE devmode; int modeNum; Com_Printf ("failed, " ); PrintCDSError( cdsRet ); Com_Printf ("...trying next higher resolution:" ); // we could do a better matching job here... for ( modeNum = 0 ; ; modeNum++ ) { if ( !EnumDisplaySettings( NULL, modeNum, &devmode ) ) { modeNum = -1; break; } if ( devmode.dmPelsWidth >= glConfig.vidWidth && devmode.dmPelsHeight >= glConfig.vidHeight && devmode.dmBitsPerPel >= 15 ) { break; } } if ( modeNum != -1 && ( cdsRet = ChangeDisplaySettings( &devmode, CDS_FULLSCREEN ) ) == DISP_CHANGE_SUCCESSFUL ) { Com_Printf (" ok\n" ); if ( !GLW_CreateWindow( glConfig.vidWidth, glConfig.vidHeight, colorbits, qtrue) ) { Com_Printf ("...restoring display settings\n" ); ChangeDisplaySettings( 0, 0 ); return RSERR_INVALID_MODE; } glw_state.cdsFullscreen = qtrue; } else { Com_Printf (" failed, " ); PrintCDSError( cdsRet ); Com_Printf ("...restoring display settings\n" ); ChangeDisplaySettings( 0, 0 ); /* jfm: i took out the following code to allow fallback to mode 3, with this code it goes half windowed and just doesn't work. glw_state.cdsFullscreen = qfalse; glConfig.isFullscreen = qfalse; if ( !GLW_CreateWindow( glConfig.vidWidth, glConfig.vidHeight, colorbits, qfalse) ) { return RSERR_INVALID_MODE; } */ return RSERR_INVALID_FULLSCREEN; } } } } else { if ( glw_state.cdsFullscreen ) { ChangeDisplaySettings( 0, 0 ); } glw_state.cdsFullscreen = qfalse; if ( !GLW_CreateWindow( glConfig.vidWidth, glConfig.vidHeight, colorbits, qfalse ) ) { return RSERR_INVALID_MODE; } } // // success, now check display frequency, although this won't be valid on Voodoo(2) // memset( &dm, 0, sizeof( dm ) ); dm.dmSize = sizeof( dm ); if ( EnumDisplaySettings( NULL, ENUM_CURRENT_SETTINGS, &dm ) ) { glConfig.displayFrequency = dm.dmDisplayFrequency; } // NOTE: this is overridden later on standalone 3Dfx drivers glConfig.isFullscreen = cdsFullscreen; return RSERR_OK; } /* ** GLW_CheckForExtension Cannot use strstr directly to differentiate between (for eg) reg_combiners and reg_combiners2 */ bool GL_CheckForExtension(const char *ext) { char *temp; char term; temp = strstr(glConfig.extensions_string, ext); if(!temp) { return(false); } // String exists but it may not be terminated term = temp[strlen(ext)]; if((term == ' ') || !term) { return(true); } return(false); } //-------------------------------------------- static void GLW_InitTextureCompression( void ) { qboolean newer_tc, old_tc; // Check for available tc methods. newer_tc = ( strstr( glConfig.extensions_string, "ARB_texture_compression" ) && strstr( glConfig.extensions_string, "EXT_texture_compression_s3tc" )) ? qtrue : qfalse; old_tc = ( strstr( glConfig.extensions_string, "GL_S3_s3tc" )) ? qtrue : qfalse; if ( old_tc ) { Com_Printf ("...GL_S3_s3tc available\n" ); } if ( newer_tc ) { Com_Printf ("...GL_EXT_texture_compression_s3tc available\n" ); } if ( !r_ext_compressed_textures->value ) { // Compressed textures are off glConfig.textureCompression = TC_NONE; Com_Printf ("...ignoring texture compression\n" ); } else if ( !old_tc && !newer_tc ) { // Requesting texture compression, but no method found glConfig.textureCompression = TC_NONE; Com_Printf ("...no supported texture compression method found\n" ); Com_Printf (".....ignoring texture compression\n" ); } else { // some form of supported texture compression is avaiable, so see if the user has a preference if ( r_ext_preferred_tc_method->integer == TC_NONE ) { // No preference, so pick the best if ( newer_tc ) { Com_Printf ("...no tc preference specified\n" ); Com_Printf (".....using GL_EXT_texture_compression_s3tc\n" ); glConfig.textureCompression = TC_S3TC_DXT; } else { Com_Printf ("...no tc preference specified\n" ); Com_Printf (".....using GL_S3_s3tc\n" ); glConfig.textureCompression = TC_S3TC; } } else { // User has specified a preference, now see if this request can be honored if ( old_tc && newer_tc ) { // both are avaiable, so we can use the desired tc method if ( r_ext_preferred_tc_method->integer == TC_S3TC ) { Com_Printf ("...using preferred tc method, GL_S3_s3tc\n" ); glConfig.textureCompression = TC_S3TC; } else { Com_Printf ("...using preferred tc method, GL_EXT_texture_compression_s3tc\n" ); glConfig.textureCompression = TC_S3TC_DXT; } } else { // Both methods are not available, so this gets trickier if ( r_ext_preferred_tc_method->integer == TC_S3TC ) { // Preferring to user older compression if ( old_tc ) { Com_Printf ("...using GL_S3_s3tc\n" ); glConfig.textureCompression = TC_S3TC; } else { // Drat, preference can't be honored Com_Printf ("...preferred tc method, GL_S3_s3tc not available\n" ); Com_Printf (".....falling back to GL_EXT_texture_compression_s3tc\n" ); glConfig.textureCompression = TC_S3TC_DXT; } } else { // Preferring to user newer compression if ( newer_tc ) { Com_Printf ("...using GL_EXT_texture_compression_s3tc\n" ); glConfig.textureCompression = TC_S3TC_DXT; } else { // Drat, preference can't be honored Com_Printf ("...preferred tc method, GL_EXT_texture_compression_s3tc not available\n" ); Com_Printf (".....falling back to GL_S3_s3tc\n" ); glConfig.textureCompression = TC_S3TC; } } } } } } /* ** GLW_InitExtensions */ static void GLW_InitExtensions( void ) { if ( !r_allowExtensions->integer ) { Com_Printf ("*** IGNORING OPENGL EXTENSIONS ***\n" ); g_bDynamicGlowSupported = false; Cvar_Set( "r_DynamicGlow","0" ); return; } Com_Printf ("Initializing OpenGL extensions\n" ); // Select our tc scheme GLW_InitTextureCompression(); // GL_EXT_texture_env_add glConfig.textureEnvAddAvailable = qfalse; if ( strstr( glConfig.extensions_string, "EXT_texture_env_add" ) ) { if ( r_ext_texture_env_add->integer ) { glConfig.textureEnvAddAvailable = qtrue; Com_Printf ("...using GL_EXT_texture_env_add\n" ); } else { glConfig.textureEnvAddAvailable = qfalse; Com_Printf ("...ignoring GL_EXT_texture_env_add\n" ); } } else { Com_Printf ("...GL_EXT_texture_env_add not found\n" ); } // GL_EXT_texture_filter_anisotropic glConfig.maxTextureFilterAnisotropy = 0; if ( strstr( glConfig.extensions_string, "EXT_texture_filter_anisotropic" ) ) { #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF //can't include glext.h here ... sigh qglGetFloatv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &glConfig.maxTextureFilterAnisotropy ); Com_Printf ("...GL_EXT_texture_filter_anisotropic available\n" ); if ( r_ext_texture_filter_anisotropic->integer>1 ) { Com_Printf ("...using GL_EXT_texture_filter_anisotropic\n" ); } else { Com_Printf ("...ignoring GL_EXT_texture_filter_anisotropic\n" ); } Cvar_Set( "r_ext_texture_filter_anisotropic_avail", va("%f",glConfig.maxTextureFilterAnisotropy) ); if ( r_ext_texture_filter_anisotropic->value > glConfig.maxTextureFilterAnisotropy ) { Cvar_Set( "r_ext_texture_filter_anisotropic", va("%f",glConfig.maxTextureFilterAnisotropy) ); } } else { Com_Printf ("...GL_EXT_texture_filter_anisotropic not found\n" ); Cvar_Set( "r_ext_texture_filter_anisotropic_avail", "0" ); } // GL_EXT_clamp_to_edge glConfig.clampToEdgeAvailable = qfalse; if ( strstr( glConfig.extensions_string, "GL_EXT_texture_edge_clamp" ) ) { glConfig.clampToEdgeAvailable = qtrue; Com_Printf ("...Using GL_EXT_texture_edge_clamp\n" ); } // WGL_EXT_swap_control qwglSwapIntervalEXT = ( BOOL (WINAPI *)(int)) qwglGetProcAddress( "wglSwapIntervalEXT" ); if ( qwglSwapIntervalEXT ) { Com_Printf ("...using WGL_EXT_swap_control\n" ); r_swapInterval->modified = qtrue; // force a set next frame } else { Com_Printf ("...WGL_EXT_swap_control not found\n" ); } // GL_ARB_multitexture qglMultiTexCoord2fARB = NULL; qglActiveTextureARB = NULL; qglClientActiveTextureARB = NULL; if ( strstr( glConfig.extensions_string, "GL_ARB_multitexture" ) ) { if ( r_ext_multitexture->integer ) { qglMultiTexCoord2fARB = ( PFNGLMULTITEXCOORD2FARBPROC ) qwglGetProcAddress( "glMultiTexCoord2fARB" ); qglActiveTextureARB = ( PFNGLACTIVETEXTUREARBPROC ) qwglGetProcAddress( "glActiveTextureARB" ); qglClientActiveTextureARB = ( PFNGLCLIENTACTIVETEXTUREARBPROC ) qwglGetProcAddress( "glClientActiveTextureARB" ); if ( qglActiveTextureARB ) { qglGetIntegerv( GL_MAX_ACTIVE_TEXTURES_ARB, &glConfig.maxActiveTextures ); if ( glConfig.maxActiveTextures > 1 ) { Com_Printf ("...using GL_ARB_multitexture\n" ); } else { qglMultiTexCoord2fARB = NULL; qglActiveTextureARB = NULL; qglClientActiveTextureARB = NULL; Com_Printf ("...not using GL_ARB_multitexture, < 2 texture units\n" ); } } } else { Com_Printf ("...ignoring GL_ARB_multitexture\n" ); } } else { Com_Printf ("...GL_ARB_multitexture not found\n" ); } // GL_EXT_compiled_vertex_array qglLockArraysEXT = NULL; qglUnlockArraysEXT = NULL; if ( strstr( glConfig.extensions_string, "GL_EXT_compiled_vertex_array" ) ) { if ( r_ext_compiled_vertex_array->integer ) { Com_Printf ("...using GL_EXT_compiled_vertex_array\n" ); qglLockArraysEXT = ( void ( APIENTRY * )( int, int ) ) qwglGetProcAddress( "glLockArraysEXT" ); qglUnlockArraysEXT = ( void ( APIENTRY * )( void ) ) qwglGetProcAddress( "glUnlockArraysEXT" ); if (!qglLockArraysEXT || !qglUnlockArraysEXT) { Com_Error (ERR_FATAL, "bad getprocaddress"); } } else { Com_Printf ("...ignoring GL_EXT_compiled_vertex_array\n" ); } } else { Com_Printf ("...GL_EXT_compiled_vertex_array not found\n" ); } qglPointParameterfEXT = NULL; qglPointParameterfvEXT = NULL; //3d textures -rww qglTexImage3DEXT = NULL; qglTexSubImage3DEXT = NULL; if ( strstr( glConfig.extensions_string, "GL_EXT_point_parameters" ) ) { if ( r_ext_compiled_vertex_array->integer || 1) { Com_Printf ("...using GL_EXT_point_parameters\n" ); qglPointParameterfEXT = ( void ( APIENTRY * )( GLenum, GLfloat) ) qwglGetProcAddress( "glPointParameterfEXT" ); qglPointParameterfvEXT = ( void ( APIENTRY * )( GLenum, GLfloat *) ) qwglGetProcAddress( "glPointParameterfvEXT" ); //3d textures -rww qglTexImage3DEXT = (void ( APIENTRY * ) (GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *) ) qwglGetProcAddress( "glTexImage3DEXT" ); qglTexSubImage3DEXT = (void ( APIENTRY * ) (GLenum, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLenum, const GLvoid *) ) qwglGetProcAddress( "glTexSubImage3DEXT" ); if (!qglPointParameterfEXT || !qglPointParameterfvEXT) { Com_Error (ERR_FATAL, "bad getprocaddress"); } } else { Com_Printf ("...ignoring GL_EXT_point_parameters\n" ); } } else { Com_Printf ("...GL_EXT_point_parameters not found\n" ); } bool bNVRegisterCombiners = false; // Register Combiners. if ( strstr( glConfig.extensions_string, "GL_NV_register_combiners" ) ) { // NOTE: This extension requires multitexture support (over 2 units). if ( glConfig.maxActiveTextures >= 2 ) { bNVRegisterCombiners = true; // Register Combiners function pointer address load. - AReis // NOTE: VV guys will _definetly_ not be able to use regcoms. Pixel Shaders are just as good though :-) // NOTE: Also, this is an nVidia specific extension (of course), so fragment shaders would serve the same purpose // if we needed some kind of fragment/pixel manipulation support. qglCombinerParameterfvNV = ( PFNGLCOMBINERPARAMETERFVNV ) qwglGetProcAddress( "glCombinerParameterfvNV" ); qglCombinerParameterivNV = ( PFNGLCOMBINERPARAMETERIVNV ) qwglGetProcAddress( "glCombinerParameterivNV" ); qglCombinerParameterfNV = ( PFNGLCOMBINERPARAMETERFNV ) qwglGetProcAddress( "glCombinerParameterfNV" ); qglCombinerParameteriNV = ( PFNGLCOMBINERPARAMETERINV ) qwglGetProcAddress( "glCombinerParameteriNV" ); qglCombinerInputNV = ( PFNGLCOMBINERINPUTNV ) qwglGetProcAddress( "glCombinerInputNV" ); qglCombinerOutputNV = ( PFNGLCOMBINEROUTPUTNV ) qwglGetProcAddress( "glCombinerOutputNV" ); qglFinalCombinerInputNV = ( PFNGLFINALCOMBINERINPUTNV ) qwglGetProcAddress( "glFinalCombinerInputNV" ); qglGetCombinerInputParameterfvNV = ( PFNGLGETCOMBINERINPUTPARAMETERFVNV ) qwglGetProcAddress( "glGetCombinerInputParameterfvNV" ); qglGetCombinerInputParameterivNV = ( PFNGLGETCOMBINERINPUTPARAMETERIVNV ) qwglGetProcAddress( "glGetCombinerInputParameterivNV" ); qglGetCombinerOutputParameterfvNV = ( PFNGLGETCOMBINEROUTPUTPARAMETERFVNV ) qwglGetProcAddress( "glGetCombinerOutputParameterfvNV" ); qglGetCombinerOutputParameterivNV = ( PFNGLGETCOMBINEROUTPUTPARAMETERIVNV ) qwglGetProcAddress( "glGetCombinerOutputParameterivNV" ); qglGetFinalCombinerInputParameterfvNV = ( PFNGLGETFINALCOMBINERINPUTPARAMETERFVNV ) qwglGetProcAddress( "glGetFinalCombinerInputParameterfvNV" ); qglGetFinalCombinerInputParameterivNV = ( PFNGLGETFINALCOMBINERINPUTPARAMETERIVNV ) qwglGetProcAddress( "glGetFinalCombinerInputParameterivNV" ); // Validate the functions we need. if ( !qglCombinerParameterfvNV || !qglCombinerParameterivNV || !qglCombinerParameterfNV || !qglCombinerParameteriNV || !qglCombinerInputNV || !qglCombinerOutputNV || !qglFinalCombinerInputNV || !qglGetCombinerInputParameterfvNV || !qglGetCombinerInputParameterivNV || !qglGetCombinerOutputParameterfvNV || !qglGetCombinerOutputParameterivNV || !qglGetFinalCombinerInputParameterfvNV || !qglGetFinalCombinerInputParameterivNV ) { bNVRegisterCombiners = false; qglCombinerParameterfvNV = NULL; qglCombinerParameteriNV = NULL; Com_Printf ("...GL_NV_register_combiners failed\n" ); } } else { bNVRegisterCombiners = false; Com_Printf ("...ignoring GL_NV_register_combiners\n" ); } } else { bNVRegisterCombiners = false; Com_Printf ("...GL_NV_register_combiners not found\n" ); } // NOTE: Vertex and Fragment Programs are very dependant on each other - this is actually a // good thing! So, just check to see which we support (one or the other) and load the shared // function pointers. ARB rocks! // Vertex Programs. bool bARBVertexProgram = false; if ( strstr( glConfig.extensions_string, "GL_ARB_vertex_program" ) ) { bARBVertexProgram = true; } else { bARBVertexProgram = false; Com_Printf ("...GL_ARB_vertex_program not found\n" ); } // Fragment Programs. bool bARBFragmentProgram = false; if ( strstr( glConfig.extensions_string, "GL_ARB_fragment_program" ) ) { bARBFragmentProgram = true; } else { bARBFragmentProgram = false; Com_Printf ("...GL_ARB_fragment_program not found\n" ); } // If we support one or the other, load the shared function pointers. if ( bARBVertexProgram || bARBFragmentProgram ) { qglProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC) qwglGetProcAddress("glProgramStringARB"); qglBindProgramARB = (PFNGLBINDPROGRAMARBPROC) qwglGetProcAddress("glBindProgramARB"); qglDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC) qwglGetProcAddress("glDeleteProgramsARB"); qglGenProgramsARB = (PFNGLGENPROGRAMSARBPROC) qwglGetProcAddress("glGenProgramsARB"); qglProgramEnvParameter4dARB = (PFNGLPROGRAMENVPARAMETER4DARBPROC) qwglGetProcAddress("glProgramEnvParameter4dARB"); qglProgramEnvParameter4dvARB = (PFNGLPROGRAMENVPARAMETER4DVARBPROC) qwglGetProcAddress("glProgramEnvParameter4dvARB"); qglProgramEnvParameter4fARB = (PFNGLPROGRAMENVPARAMETER4FARBPROC) qwglGetProcAddress("glProgramEnvParameter4fARB"); qglProgramEnvParameter4fvARB = (PFNGLPROGRAMENVPARAMETER4FVARBPROC) qwglGetProcAddress("glProgramEnvParameter4fvARB"); qglProgramLocalParameter4dARB = (PFNGLPROGRAMLOCALPARAMETER4DARBPROC) qwglGetProcAddress("glProgramLocalParameter4dARB"); qglProgramLocalParameter4dvARB = (PFNGLPROGRAMLOCALPARAMETER4DVARBPROC) qwglGetProcAddress("glProgramLocalParameter4dvARB"); qglProgramLocalParameter4fARB = (PFNGLPROGRAMLOCALPARAMETER4FARBPROC) qwglGetProcAddress("glProgramLocalParameter4fARB"); qglProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) qwglGetProcAddress("glProgramLocalParameter4fvARB"); qglGetProgramEnvParameterdvARB = (PFNGLGETPROGRAMENVPARAMETERDVARBPROC) qwglGetProcAddress("glGetProgramEnvParameterdvARB"); qglGetProgramEnvParameterfvARB = (PFNGLGETPROGRAMENVPARAMETERFVARBPROC) qwglGetProcAddress("glGetProgramEnvParameterfvARB"); qglGetProgramLocalParameterdvARB = (PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC) qwglGetProcAddress("glGetProgramLocalParameterdvARB"); qglGetProgramLocalParameterfvARB = (PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC) qwglGetProcAddress("glGetProgramLocalParameterfvARB"); qglGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC) qwglGetProcAddress("glGetProgramivARB"); qglGetProgramStringARB = (PFNGLGETPROGRAMSTRINGARBPROC) qwglGetProcAddress("glGetProgramStringARB"); qglIsProgramARB = (PFNGLISPROGRAMARBPROC) qwglGetProcAddress("glIsProgramARB"); // Validate the functions we need. if ( !qglProgramStringARB || !qglBindProgramARB || !qglDeleteProgramsARB || !qglGenProgramsARB || !qglProgramEnvParameter4dARB || !qglProgramEnvParameter4dvARB || !qglProgramEnvParameter4fARB || !qglProgramEnvParameter4fvARB || !qglProgramLocalParameter4dARB || !qglProgramLocalParameter4dvARB || !qglProgramLocalParameter4fARB || !qglProgramLocalParameter4fvARB || !qglGetProgramEnvParameterdvARB || !qglGetProgramEnvParameterfvARB || !qglGetProgramLocalParameterdvARB || !qglGetProgramLocalParameterfvARB || !qglGetProgramivARB || !qglGetProgramStringARB || !qglIsProgramARB ) { bARBVertexProgram = false; bARBFragmentProgram = false; qglGenProgramsARB = NULL; //clear ptrs that get checked qglProgramEnvParameter4fARB = NULL; Com_Printf ("...ignoring GL_ARB_vertex_program\n" ); Com_Printf ("...ignoring GL_ARB_fragment_program\n" ); } } // Figure out which texture rectangle extension to use. bool bTexRectSupported = false; if ( strnicmp( glConfig.vendor_string, "ATI Technologies",16 )==0 && strnicmp( glConfig.version_string, "1.3.3",5 )==0 && glConfig.version_string[5] < '9' ) //1.3.34 and 1.3.37 and 1.3.38 are broken for sure, 1.3.39 is not { g_bTextureRectangleHack = true; } if ( strstr( glConfig.extensions_string, "GL_NV_texture_rectangle" ) || strstr( glConfig.extensions_string, "GL_EXT_texture_rectangle" ) ) { bTexRectSupported = true; } // OK, so not so good to put this here, but no one else uses it!!! -AReis typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc); PFNWGLGETEXTENSIONSSTRINGARBPROC qwglGetExtensionsStringARB; qwglGetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC) qwglGetProcAddress("wglGetExtensionsStringARB"); const char *wglExtensions = NULL; bool bHasPixelFormat = false; bool bHasRenderTexture = false; // Get the WGL extensions string. if ( qwglGetExtensionsStringARB ) { wglExtensions = qwglGetExtensionsStringARB( glw_state.hDC ); } // This externsion is used to get the wgl extension string. if ( wglExtensions ) { // Pixel Format. if ( strstr( wglExtensions, "WGL_ARB_pixel_format" ) ) { qwglGetPixelFormatAttribivARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC) qwglGetProcAddress("wglGetPixelFormatAttribivARB"); qwglGetPixelFormatAttribfvARB = (PFNWGLGETPIXELFORMATATTRIBFVARBPROC) qwglGetProcAddress("wglGetPixelFormatAttribfvARB"); qwglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC) qwglGetProcAddress("wglChoosePixelFormatARB"); // Validate the functions we need. if ( !qwglGetPixelFormatAttribivARB || !qwglGetPixelFormatAttribfvARB || !qwglChoosePixelFormatARB ) { Com_Printf ("...ignoring WGL_ARB_pixel_format\n" ); } else { bHasPixelFormat = true; } } else { Com_Printf ("...ignoring WGL_ARB_pixel_format\n" ); } // Offscreen pixel-buffer. // NOTE: VV guys can use the equivelant SetRenderTarget() with the correct texture surfaces. bool bWGLARBPbuffer = false; if ( strstr( wglExtensions, "WGL_ARB_pbuffer" ) && bHasPixelFormat ) { bWGLARBPbuffer = true; qwglCreatePbufferARB = (PFNWGLCREATEPBUFFERARBPROC) qwglGetProcAddress("wglCreatePbufferARB"); qwglGetPbufferDCARB = (PFNWGLGETPBUFFERDCARBPROC) qwglGetProcAddress("wglGetPbufferDCARB"); qwglReleasePbufferDCARB = (PFNWGLRELEASEPBUFFERDCARBPROC) qwglGetProcAddress("wglReleasePbufferDCARB"); qwglDestroyPbufferARB = (PFNWGLDESTROYPBUFFERARBPROC) qwglGetProcAddress("wglDestroyPbufferARB"); qwglQueryPbufferARB = (PFNWGLQUERYPBUFFERARBPROC) qwglGetProcAddress("wglQueryPbufferARB"); // Validate the functions we need. if ( !qwglCreatePbufferARB || !qwglGetPbufferDCARB || !qwglReleasePbufferDCARB || !qwglDestroyPbufferARB || !qwglQueryPbufferARB ) { bWGLARBPbuffer = false; Com_Printf ("...WGL_ARB_pbuffer failed\n" ); } } else { bWGLARBPbuffer = false; Com_Printf ("...WGL_ARB_pbuffer not found\n" ); } // Render-Texture (requires pbuffer ext (and it's dependancies of course). if ( strstr( wglExtensions, "WGL_ARB_render_texture" ) && bWGLARBPbuffer ) { qwglBindTexImageARB = (PFNWGLBINDTEXIMAGEARBPROC) qwglGetProcAddress("wglBindTexImageARB"); qwglReleaseTexImageARB = (PFNWGLRELEASETEXIMAGEARBPROC) qwglGetProcAddress("wglReleaseTexImageARB"); qwglSetPbufferAttribARB = (PFNWGLSETPBUFFERATTRIBARBPROC) qwglGetProcAddress("wglSetPbufferAttribARB"); // Validate the functions we need. if ( !qwglCreatePbufferARB || !qwglGetPbufferDCARB || !qwglReleasePbufferDCARB || !qwglDestroyPbufferARB || !qwglQueryPbufferARB ) { Com_Printf ("...ignoring WGL_ARB_render_texture\n" ); } else { bHasRenderTexture = true; } } else { Com_Printf ("...ignoring WGL_ARB_render_texture\n" ); } } // Find out how many general combiners they have. #define GL_MAX_GENERAL_COMBINERS_NV 0x854D GLint iNumGeneralCombiners = 0; qglGetIntegerv( GL_MAX_GENERAL_COMBINERS_NV, &iNumGeneralCombiners ); // Only allow dynamic glows/flares if they have the hardware if ( bTexRectSupported && bARBVertexProgram && bHasRenderTexture && qglActiveTextureARB && glConfig.maxActiveTextures >= 4 && ( ( bNVRegisterCombiners && iNumGeneralCombiners >= 2 ) || bARBFragmentProgram ) ) { g_bDynamicGlowSupported = true; // this would overwrite any achived setting gwg // Cvar_Set( "r_DynamicGlow", "1" ); } else { g_bDynamicGlowSupported = false; Cvar_Set( "r_DynamicGlow","0" ); } } /* ** GLW_CheckOSVersion */ static qboolean GLW_CheckOSVersion( void ) { #define OSR2_BUILD_NUMBER 1111 OSVERSIONINFO vinfo; vinfo.dwOSVersionInfoSize = sizeof(vinfo); glw_state.allowdisplaydepthchange = qfalse; if ( GetVersionEx( &vinfo) ) { if ( vinfo.dwMajorVersion > 4 ) { glw_state.allowdisplaydepthchange = qtrue; } else if ( vinfo.dwMajorVersion == 4 ) { if ( vinfo.dwPlatformId == VER_PLATFORM_WIN32_NT ) { glw_state.allowdisplaydepthchange = qtrue; } else if ( vinfo.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS ) { if ( LOWORD( vinfo.dwBuildNumber ) >= OSR2_BUILD_NUMBER ) { glw_state.allowdisplaydepthchange = qtrue; } } } } else { Com_Printf ("GLW_CheckOSVersion() - GetVersionEx failed\n" ); return qfalse; } return qtrue; } /* ** GLW_LoadOpenGL ** ** GLimp_win.c internal function that attempts to load and use ** a specific OpenGL DLL. */ static qboolean GLW_LoadOpenGL( ) { char buffer[1024]; qboolean cdsFullscreen; strlwr( strcpy( buffer, OPENGL_DRIVER_NAME ) ); // // load the driver and bind our function pointers to it // if ( QGL_Init( buffer ) ) { cdsFullscreen = (qboolean)r_fullscreen->integer; // create the window and set up the context if ( !GLW_StartDriverAndSetMode( r_mode->integer, r_colorbits->integer, cdsFullscreen ) ) { // if we're on a 24/32-bit desktop and we're going fullscreen on an ICD, // try it again but with a 16-bit desktop if ( r_colorbits->integer != 16 || cdsFullscreen != qtrue || r_mode->integer != 3 ) { if ( !GLW_StartDriverAndSetMode( 3, 16, qtrue ) ) { goto fail; } } } #ifdef _CRAZY_ATTRIB_DEBUG //I can get away with this because we don't actually use push/pop attrib anywhere else. qglPushAttrib(GL_ACCUM_BUFFER_BIT|GL_COLOR_BUFFER_BIT|GL_CURRENT_BIT|GL_DEPTH_BUFFER_BIT| GL_ENABLE_BIT|GL_EVAL_BIT|GL_FOG_BIT|GL_HINT_BIT|GL_LIGHTING_BIT|GL_LINE_BIT|GL_LIST_BIT| GL_PIXEL_MODE_BIT|GL_POINT_BIT|GL_POLYGON_BIT|GL_POLYGON_STIPPLE_BIT|GL_SCISSOR_BIT| GL_STENCIL_BUFFER_BIT|GL_TEXTURE_BIT|GL_TRANSFORM_BIT|GL_VIEWPORT_BIT); #endif return qtrue; } fail: QGL_Shutdown(); return qfalse; } /* ** GLimp_EndFrame */ void GLimp_EndFrame (void) { // // swapinterval stuff // if ( r_swapInterval->modified ) { r_swapInterval->modified = qfalse; if ( !glConfig.stereoEnabled ) { // why? if ( qwglSwapIntervalEXT ) { qwglSwapIntervalEXT( r_swapInterval->integer ); } } } // don't flip if drawing to front buffer //if ( stricmp( r_drawBuffer->string, "GL_FRONT" ) != 0 ) { SwapBuffers( glw_state.hDC ); } // check logging QGL_EnableLogging( (qboolean)r_logFile->integer ); } static void GLW_StartOpenGL( void ) { // // load and initialize the specific OpenGL driver // if ( !GLW_LoadOpenGL() ) { Com_Error( ERR_FATAL, "GLW_StartOpenGL() - could not load OpenGL subsystem\n" ); } } /* ** GLimp_Init ** ** This is the platform specific OpenGL initialization function. It ** is responsible for loading OpenGL, initializing it, setting ** extensions, creating a window of the appropriate size, doing ** fullscreen manipulations, etc. Its overall responsibility is ** to make sure that a functional OpenGL subsystem is operating ** when it returns to the ref. */ void GLimp_Init( void ) { char buf[MAX_STRING_CHARS]; cvar_t *lastValidRenderer = Cvar_Get( "r_lastValidRenderer", "(uninitialized)", CVAR_ARCHIVE ); cvar_t *cv; // Com_Printf ("Initializing OpenGL subsystem\n" ); // // check OS version to see if we can do fullscreen display changes // if ( !GLW_CheckOSVersion() ) { Com_Error( ERR_FATAL, "GLimp_Init() - incorrect operating system\n" ); } // save off hInstance and wndproc cv = Cvar_Get( "win_hinstance", "", 0 ); sscanf( cv->string, "%i", (int *)&g_wv.hInstance ); cv = Cvar_Get( "win_wndproc", "", 0 ); sscanf( cv->string, "%i", (int *)&glw_state.wndproc ); r_allowSoftwareGL = Cvar_Get( "r_allowSoftwareGL", "0", CVAR_LATCH ); // load appropriate DLL and initialize subsystem GLW_StartOpenGL(); // get our config strings glConfig.vendor_string = (const char *) qglGetString (GL_VENDOR); glConfig.renderer_string = (const char *) qglGetString (GL_RENDERER); glConfig.version_string = (const char *) qglGetString (GL_VERSION); glConfig.extensions_string = (const char *) qglGetString (GL_EXTENSIONS); if (!glConfig.vendor_string || !glConfig.renderer_string || !glConfig.version_string || !glConfig.extensions_string) { Com_Error( ERR_FATAL, "GLimp_Init() - Invalid GL Driver\n" ); } // OpenGL driver constants qglGetIntegerv( GL_MAX_TEXTURE_SIZE, &glConfig.maxTextureSize ); // stubbed or broken drivers may have reported 0... if ( glConfig.maxTextureSize <= 0 ) { glConfig.maxTextureSize = 0; } // // chipset specific configuration // Q_strncpyz( buf, glConfig.renderer_string, sizeof(buf) ); 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. // extern qboolean Sys_LowPhysicalMemory(); if ( Q_stricmp( lastValidRenderer->string, glConfig.renderer_string ) ) { if (Sys_LowPhysicalMemory()) { Cvar_Set("s_khz", "11");// this will get called before S_Init } //reset to defaults Cvar_Set( "r_picmip", "1" ); // Savage3D and Savage4 should always have trilinear enabled if ( strstr( buf, "savage3d" ) || strstr( buf, "s3 savage4" ) || strstr( buf, "geforce" ) || strstr( buf, "quadro" ) ) { Cvar_Set( "r_texturemode", "GL_LINEAR_MIPMAP_LINEAR" ); } else { Cvar_Set( "r_textureMode", "GL_LINEAR_MIPMAP_NEAREST" ); } if ( strstr( buf, "kyro" ) ) { Cvar_Set( "r_ext_texture_filter_anisotropic", "0"); //KYROs have it avail, but suck at it! Cvar_Set( "r_ext_preferred_tc_method", "1"); //(Use DXT1 instead of DXT5 - same quality but much better performance on KYRO) } if ( strstr( buf, "geforce2" ) ) { Cvar_Set( "cg_renderToTextureFX", "0"); // slow to zero bug fix } if ( strstr( buf, "radeon 9000" ) ) { Cvar_Set( "cg_renderToTextureFX", "0"); // white texture bug } GLW_InitExtensions(); //get the values for test below //this must be a really sucky card! if ( (glConfig.textureCompression == TC_NONE) || (glConfig.maxActiveTextures < 2) || (glConfig.maxTextureSize <= 512) ) { Cvar_Set( "r_picmip", "2"); Cvar_Set( "r_colorbits", "16"); Cvar_Set( "r_texturebits", "16"); Cvar_Set( "r_mode", "3"); //force 640 Cmd_ExecuteString ("exec low.cfg\n"); //get the rest which can be pulled in after init } } Cvar_Set( "r_lastValidRenderer", glConfig.renderer_string ); GLW_InitExtensions(); WG_CheckHardwareGamma(); } /* ** GLimp_Shutdown ** ** This routine does all OS specific shutdown procedures for the OpenGL ** subsystem. */ void GLimp_Shutdown( void ) { // const char *strings[] = { "soft", "hard" }; // const char *success[] = { "failed", "success" }; int retVal; // FIXME: Brian, we need better fallbacks from partially initialized failures if ( !qwglMakeCurrent ) { return; } Com_Printf ("Shutting down OpenGL subsystem\n" ); // restore gamma. We do this first because 3Dfx's extension needs a valid OGL subsystem WG_RestoreGamma(); // set current context to NULL if ( qwglMakeCurrent ) { retVal = qwglMakeCurrent( NULL, NULL ) != 0; // Com_Printf ("...wglMakeCurrent( NULL, NULL ): %s\n", success[retVal] ); } // delete HGLRC if ( glw_state.hGLRC ) { retVal = qwglDeleteContext( glw_state.hGLRC ) != 0; // Com_Printf ("...deleting GL context: %s\n", success[retVal] ); glw_state.hGLRC = NULL; } // release DC if ( glw_state.hDC ) { retVal = ReleaseDC( g_wv.hWnd, glw_state.hDC ) != 0; // Com_Printf ("...releasing DC: %s\n", success[retVal] ); glw_state.hDC = NULL; } // destroy window if ( g_wv.hWnd ) { // Com_Printf ("...destroying window\n" ); ShowWindow( g_wv.hWnd, SW_HIDE ); DestroyWindow( g_wv.hWnd ); g_wv.hWnd = NULL; glw_state.pixelFormatSet = qfalse; } // close the r_logFile if ( glw_state.log_fp ) { fclose( glw_state.log_fp ); glw_state.log_fp = 0; } // reset display settings if ( glw_state.cdsFullscreen ) { // Com_Printf ("...resetting display\n" ); ChangeDisplaySettings( 0, 0 ); glw_state.cdsFullscreen = qfalse; } // shutdown QGL subsystem QGL_Shutdown(); memset( &glConfig, 0, sizeof( glConfig ) ); memset( &glState, 0, sizeof( glState ) ); } /* ** GLimp_LogComment */ void GLimp_LogComment( char *comment ) { if ( glw_state.log_fp ) { fprintf( glw_state.log_fp, "%s", comment ); } } /* =========================================================== SMP acceleration =========================================================== */ HANDLE renderCommandsEvent; HANDLE renderCompletedEvent; HANDLE renderActiveEvent; void (*glimpRenderThread)( void ); void GLimp_RenderThreadWrapper( void ) { glimpRenderThread(); // unbind the context before we die qwglMakeCurrent( glw_state.hDC, NULL ); } /* ======================= GLimp_SpawnRenderThread ======================= */ HANDLE renderThreadHandle; int renderThreadId; qboolean GLimp_SpawnRenderThread( void (*function)( void ) ) { renderCommandsEvent = CreateEvent( NULL, TRUE, FALSE, NULL ); renderCompletedEvent = CreateEvent( NULL, TRUE, FALSE, NULL ); renderActiveEvent = CreateEvent( NULL, TRUE, FALSE, NULL ); glimpRenderThread = function; renderThreadHandle = CreateThread( NULL, // LPSECURITY_ATTRIBUTES lpsa, 0, // DWORD cbStack, (LPTHREAD_START_ROUTINE)GLimp_RenderThreadWrapper, // LPTHREAD_START_ROUTINE lpStartAddr, 0, // LPVOID lpvThreadParm, 0, // DWORD fdwCreate, (unsigned long *)&renderThreadId ); if ( !renderThreadHandle ) { return qfalse; } return qtrue; } static void *smpData; static int wglErrors; void *GLimp_RendererSleep( void ) { void *data; if ( !qwglMakeCurrent( glw_state.hDC, NULL ) ) { wglErrors++; } ResetEvent( renderActiveEvent ); // after this, the front end can exit GLimp_FrontEndSleep SetEvent( renderCompletedEvent ); WaitForSingleObject( renderCommandsEvent, INFINITE ); if ( !qwglMakeCurrent( glw_state.hDC, glw_state.hGLRC ) ) { wglErrors++; } ResetEvent( renderCompletedEvent ); ResetEvent( renderCommandsEvent ); data = smpData; // after this, the main thread can exit GLimp_WakeRenderer SetEvent( renderActiveEvent ); return data; } void GLimp_FrontEndSleep( void ) { WaitForSingleObject( renderCompletedEvent, INFINITE ); if ( !qwglMakeCurrent( glw_state.hDC, glw_state.hGLRC ) ) { wglErrors++; } } void GLimp_WakeRenderer( void *data ) { smpData = data; if ( !qwglMakeCurrent( glw_state.hDC, NULL ) ) { wglErrors++; } // after this, the renderer can continue through GLimp_RendererSleep SetEvent( renderCommandsEvent ); WaitForSingleObject( renderActiveEvent, INFINITE ); } // Allocate and create a new PBuffer. bool CPBUFFER::Create( int iWidth, int iHeight, int iColorBits, int iDepthBits, int iStencilBits ) { m_iWidth = iWidth; m_iHeight = iHeight; m_iColorBits = iColorBits; m_iDepthBits = iDepthBits; m_iStencilBits = iStencilBits; extern glwstate_t glw_state; m_hOldRC = glw_state.hGLRC; //qwglGetCurrentContext(); // Get the current device context. m_hOldDC = glw_state.hDC; //qwglGetCurrentDC(); if( !m_hOldDC ) { return false; } #define WGL_BIND_TO_TEXTURE_RGB_ARB 0x2070 // These are standard settings. I suppose if one wanted more control you could pass an attrib list in (but why?). const int iAttribList[] = { WGL_SUPPORT_OPENGL_ARB, true, // P-buffer will be used with OpenGL. WGL_DRAW_TO_PBUFFER_ARB, true, // Enable render to p-buffer. WGL_BIND_TO_TEXTURE_RGBA_ARB, true, // P-buffer will be used as a texture. WGL_RED_BITS_ARB, 8, // At least 8 bits for RED channel. WGL_GREEN_BITS_ARB, 8, // At least 8 bits for GREEN channel. WGL_BLUE_BITS_ARB, 8, // At least 8 bits for BLUE channel. WGL_ALPHA_BITS_ARB, 8, // At least 8 bits for ALPHA channel. WGL_DEPTH_BITS_ARB, 16, // At least 16 bits for depth buffer. WGL_DOUBLE_BUFFER_ARB, false, // We don't require double buffering 0 // Zero terminates the list. }; #define WGL_TEXTURE_RECTANGLE_NV 0x20A2 //const float fAttribList[] = { 0 }; const int iFlags[] = { WGL_TEXTURE_FORMAT_ARB, WGL_TEXTURE_RGBA_ARB, // Our p-buffer will have a texture format of RGBA. WGL_TEXTURE_TARGET_ARB, WGL_TEXTURE_RECTANGLE_NV, // Texture target will be GL_TEXTURE_RECTANGLE. 0 // Zero terminates the list. }; // Choose pixel format. unsigned int numFormats; GLint pixelFormat; if( !qwglChoosePixelFormatARB( m_hOldDC, iAttribList, NULL, 1, &pixelFormat, &numFormats ) ) { return false; } // Create the pbuffer. m_hBuffer = qwglCreatePbufferARB( m_hOldDC, pixelFormat, m_iWidth, m_iHeight, iFlags ); if( !m_hBuffer ) { return false; } // Get the pbuffer's device context. m_hDC = qwglGetPbufferDCARB( m_hBuffer ); if( !m_hDC ) { return false; } // Create a rendering context for the pbuffer. m_hRC = qwglCreateContext( m_hDC ); if( !m_hRC ) { return false; } // Share Display Lists and Texture Objects between contexts (NOTE: Could // also just use parent app RC). qwglShareLists( m_hOldRC, m_hRC ); // Set and output the actual pBuffer dimensions. qwglQueryPbufferARB( m_hBuffer, WGL_PBUFFER_WIDTH_ARB, &m_iWidth ); qwglQueryPbufferARB( m_hBuffer, WGL_PBUFFER_HEIGHT_ARB, &m_iHeight ); // Create the PBuffer Texture. extern int giTextureBindNum; m_uiPBufferTexture = 1024 + giTextureBindNum++; qglDisable( GL_TEXTURE_2D ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); /*int *pTexture = new int [m_iWidth * m_iHeight]; memset( pTexture, 0, m_iWidth * m_iHeight * sizeof( int ) ); */ qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, m_uiPBufferTexture ); //qglTexImage2D( GL_TEXTURE_RECTANGLE_EXT, 0, GL_RGB, m_iWidth, m_iHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, pTexture ); qglTexImage2D( GL_TEXTURE_RECTANGLE_EXT, 0, GL_RGB, m_iWidth, m_iHeight, 0, GL_RGB, GL_FLOAT, 0 ); qglTexParameteri( GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); qglTexParameteri( GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); qglTexParameteri( GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_WRAP_S, GL_CLAMP ); qglTexParameteri( GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_WRAP_T, GL_CLAMP ); qglDisable( GL_TEXTURE_RECTANGLE_EXT ); qglEnable( GL_TEXTURE_2D ); //delete [] pTexture; return true; } // Destroy and deallocate a PBuffer. void CPBUFFER::Destroy() { // Release the pbuffer texture. qglDeleteTextures( 1, &m_uiPBufferTexture ); // Release RC. if( m_hRC ) { qwglDeleteContext( m_hRC ); m_hRC = NULL; } // Release DC. if( m_hDC ) { qwglReleasePbufferDCARB( m_hBuffer, m_hDC); m_hDC = NULL; } // Release PBuffer. qwglDestroyPbufferARB( m_hBuffer ); } // Make this PBuffer the current render device. bool CPBUFFER::Begin() { if( !qwglMakeCurrent( m_hDC, m_hRC ) ) { return false; } qwglCopyContext( m_hOldRC, m_hRC, GL_ALL_ATTRIB_BITS ); return true; } // Restore the previous render device. bool CPBUFFER::End() { if( !qwglMakeCurrent( m_hOldDC, m_hOldRC ) ) { return false; } return true; }