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https://github.com/UberGames/ioef.git
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db941dcb5f
SDL_GL_SetSwapInterval() check
872 lines
22 KiB
C
872 lines
22 KiB
C
/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Quake III Arena source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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#ifdef USE_LOCAL_HEADERS
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# include "SDL.h"
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#else
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# include <SDL.h>
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#endif
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include "../renderercommon/tr_common.h"
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#include "../sys/sys_local.h"
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#include "sdl_icon.h"
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typedef enum
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{
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RSERR_OK,
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RSERR_INVALID_FULLSCREEN,
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RSERR_INVALID_MODE,
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RSERR_UNKNOWN
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} rserr_t;
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SDL_Window *SDL_window = NULL;
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static SDL_GLContext SDL_glContext = NULL;
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cvar_t *r_allowSoftwareGL; // Don't abort out if a hardware visual can't be obtained
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cvar_t *r_allowResize; // make window resizable
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cvar_t *r_centerWindow;
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cvar_t *r_sdlDriver;
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void (APIENTRYP qglActiveTextureARB) (GLenum texture);
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void (APIENTRYP qglClientActiveTextureARB) (GLenum texture);
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void (APIENTRYP qglMultiTexCoord2fARB) (GLenum target, GLfloat s, GLfloat t);
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void (APIENTRYP qglLockArraysEXT) (GLint first, GLsizei count);
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void (APIENTRYP qglUnlockArraysEXT) (void);
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/*
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===============
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GLimp_Shutdown
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===============
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*/
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void GLimp_Shutdown( void )
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{
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ri.IN_Shutdown();
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SDL_QuitSubSystem( SDL_INIT_VIDEO );
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}
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/*
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===============
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GLimp_Minimize
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Minimize the game so that user is back at the desktop
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===============
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*/
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void GLimp_Minimize( void )
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{
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SDL_MinimizeWindow( SDL_window );
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}
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/*
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===============
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GLimp_LogComment
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===============
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*/
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void GLimp_LogComment( char *comment )
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{
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}
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/*
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===============
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GLimp_CompareModes
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===============
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*/
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static int GLimp_CompareModes( const void *a, const void *b )
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{
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const float ASPECT_EPSILON = 0.001f;
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SDL_Rect *modeA = (SDL_Rect *)a;
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SDL_Rect *modeB = (SDL_Rect *)b;
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float aspectA = (float)modeA->w / (float)modeA->h;
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float aspectB = (float)modeB->w / (float)modeB->h;
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int areaA = modeA->w * modeA->h;
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int areaB = modeB->w * modeB->h;
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float aspectDiffA = fabs( aspectA - displayAspect );
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float aspectDiffB = fabs( aspectB - displayAspect );
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float aspectDiffsDiff = aspectDiffA - aspectDiffB;
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if( aspectDiffsDiff > ASPECT_EPSILON )
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return 1;
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else if( aspectDiffsDiff < -ASPECT_EPSILON )
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return -1;
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else
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return areaA - areaB;
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}
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/*
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===============
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GLimp_DetectAvailableModes
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===============
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*/
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static void GLimp_DetectAvailableModes(void)
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{
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int i, j;
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char buf[ MAX_STRING_CHARS ] = { 0 };
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int numSDLModes;
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SDL_Rect *modes;
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int numModes = 0;
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SDL_DisplayMode windowMode;
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int display = SDL_GetWindowDisplayIndex( SDL_window );
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if( display < 0 )
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{
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ri.Printf( PRINT_WARNING, "Couldn't get window display index, no resolutions detected: %s\n", SDL_GetError() );
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return;
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}
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numSDLModes = SDL_GetNumDisplayModes( display );
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if( SDL_GetWindowDisplayMode( SDL_window, &windowMode ) < 0 || numSDLModes <= 0 )
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{
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ri.Printf( PRINT_WARNING, "Couldn't get window display mode, no resolutions detected: %s\n", SDL_GetError() );
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return;
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}
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modes = SDL_calloc( (size_t)numSDLModes, sizeof( SDL_Rect ) );
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if ( !modes )
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{
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ri.Error( ERR_FATAL, "Out of memory" );
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}
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for( i = 0; i < numSDLModes; i++ )
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{
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SDL_DisplayMode mode;
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if( SDL_GetDisplayMode( display, i, &mode ) < 0 )
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continue;
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if( !mode.w || !mode.h )
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{
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ri.Printf( PRINT_ALL, "Display supports any resolution\n" );
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SDL_free( modes );
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return;
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}
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if( windowMode.format != mode.format )
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continue;
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// SDL can give the same resolution with different refresh rates.
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// Only list resolution once.
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for( j = 0; j < numModes; j++ )
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{
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if( mode.w == modes[ j ].w && mode.h == modes[ j ].h )
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break;
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}
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if( j != numModes )
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continue;
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modes[ numModes ].w = mode.w;
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modes[ numModes ].h = mode.h;
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numModes++;
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}
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if( numModes > 1 )
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qsort( modes, numModes, sizeof( SDL_Rect ), GLimp_CompareModes );
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for( i = 0; i < numModes; i++ )
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{
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const char *newModeString = va( "%ux%u ", modes[ i ].w, modes[ i ].h );
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if( strlen( newModeString ) < (int)sizeof( buf ) - strlen( buf ) )
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Q_strcat( buf, sizeof( buf ), newModeString );
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else
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ri.Printf( PRINT_WARNING, "Skipping mode %ux%u, buffer too small\n", modes[ i ].w, modes[ i ].h );
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}
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if( *buf )
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{
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buf[ strlen( buf ) - 1 ] = 0;
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ri.Printf( PRINT_ALL, "Available modes: '%s'\n", buf );
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ri.Cvar_Set( "r_availableModes", buf );
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}
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SDL_free( modes );
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}
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/*
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===============
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GLimp_SetMode
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===============
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*/
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static int GLimp_SetMode(int mode, qboolean fullscreen, qboolean noborder)
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{
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const char *glstring;
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int perChannelColorBits;
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int colorBits, depthBits, stencilBits;
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int samples;
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int i = 0;
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SDL_Surface *icon = NULL;
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Uint32 flags = SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL;
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SDL_DisplayMode desktopMode;
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int display = 0;
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int x = SDL_WINDOWPOS_UNDEFINED, y = SDL_WINDOWPOS_UNDEFINED;
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ri.Printf( PRINT_ALL, "Initializing OpenGL display\n");
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if ( r_allowResize->integer )
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flags |= SDL_WINDOW_RESIZABLE;
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#ifdef USE_ICON
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icon = SDL_CreateRGBSurfaceFrom(
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(void *)CLIENT_WINDOW_ICON.pixel_data,
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CLIENT_WINDOW_ICON.width,
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CLIENT_WINDOW_ICON.height,
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CLIENT_WINDOW_ICON.bytes_per_pixel * 8,
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CLIENT_WINDOW_ICON.bytes_per_pixel * CLIENT_WINDOW_ICON.width,
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#ifdef Q3_LITTLE_ENDIAN
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0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
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#else
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0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
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#endif
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);
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#endif
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// If a window exists, note its display index
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if( SDL_window != NULL )
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{
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display = SDL_GetWindowDisplayIndex( SDL_window );
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if( display < 0 )
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{
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ri.Printf( PRINT_DEVELOPER, "SDL_GetWindowDisplayIndex() failed: %s\n", SDL_GetError() );
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}
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}
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if( display >= 0 && SDL_GetDesktopDisplayMode( display, &desktopMode ) == 0 )
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{
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displayAspect = (float)desktopMode.w / (float)desktopMode.h;
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ri.Printf( PRINT_ALL, "Display aspect: %.3f\n", displayAspect );
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}
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else
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{
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Com_Memset( &desktopMode, 0, sizeof( SDL_DisplayMode ) );
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ri.Printf( PRINT_ALL,
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"Cannot determine display aspect, assuming 1.333\n" );
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}
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ri.Printf (PRINT_ALL, "...setting mode %d:", mode );
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if (mode == -2)
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{
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// use desktop video resolution
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if( desktopMode.h > 0 )
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{
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glConfig.vidWidth = desktopMode.w;
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glConfig.vidHeight = desktopMode.h;
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}
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else
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{
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glConfig.vidWidth = 640;
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glConfig.vidHeight = 480;
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ri.Printf( PRINT_ALL,
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"Cannot determine display resolution, assuming 640x480\n" );
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}
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glConfig.windowAspect = (float)glConfig.vidWidth / (float)glConfig.vidHeight;
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}
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else if ( !R_GetModeInfo( &glConfig.vidWidth, &glConfig.vidHeight, &glConfig.windowAspect, mode ) )
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{
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ri.Printf( PRINT_ALL, " invalid mode\n" );
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return RSERR_INVALID_MODE;
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}
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ri.Printf( PRINT_ALL, " %d %d\n", glConfig.vidWidth, glConfig.vidHeight);
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// Center window
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if( r_centerWindow->integer && !fullscreen )
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{
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x = ( desktopMode.w / 2 ) - ( glConfig.vidWidth / 2 );
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y = ( desktopMode.h / 2 ) - ( glConfig.vidHeight / 2 );
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}
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// Destroy existing state if it exists
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if( SDL_glContext != NULL )
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{
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SDL_GL_DeleteContext( SDL_glContext );
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SDL_glContext = NULL;
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}
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if( SDL_window != NULL )
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{
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SDL_GetWindowPosition( SDL_window, &x, &y );
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ri.Printf( PRINT_DEVELOPER, "Existing window at %dx%d before being destroyed\n", x, y );
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SDL_DestroyWindow( SDL_window );
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SDL_window = NULL;
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}
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if( fullscreen )
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{
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flags |= SDL_WINDOW_FULLSCREEN;
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glConfig.isFullscreen = qtrue;
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}
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else
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{
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if( noborder )
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flags |= SDL_WINDOW_BORDERLESS;
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glConfig.isFullscreen = qfalse;
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}
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colorBits = r_colorbits->value;
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if ((!colorBits) || (colorBits >= 32))
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colorBits = 24;
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if (!r_depthbits->value)
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depthBits = 24;
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else
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depthBits = r_depthbits->value;
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stencilBits = r_stencilbits->value;
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samples = r_ext_multisample->value;
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for (i = 0; i < 16; i++)
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{
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int testColorBits, testDepthBits, testStencilBits;
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// 0 - default
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// 1 - minus colorBits
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// 2 - minus depthBits
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// 3 - minus stencil
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if ((i % 4) == 0 && i)
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{
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// one pass, reduce
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switch (i / 4)
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{
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case 2 :
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if (colorBits == 24)
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colorBits = 16;
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break;
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case 1 :
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if (depthBits == 24)
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depthBits = 16;
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else if (depthBits == 16)
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depthBits = 8;
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case 3 :
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if (stencilBits == 24)
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stencilBits = 16;
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else if (stencilBits == 16)
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stencilBits = 8;
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}
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}
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testColorBits = colorBits;
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testDepthBits = depthBits;
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testStencilBits = stencilBits;
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if ((i % 4) == 3)
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{ // reduce colorBits
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if (testColorBits == 24)
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testColorBits = 16;
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}
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if ((i % 4) == 2)
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{ // reduce depthBits
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if (testDepthBits == 24)
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testDepthBits = 16;
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else if (testDepthBits == 16)
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testDepthBits = 8;
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}
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if ((i % 4) == 1)
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{ // reduce stencilBits
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if (testStencilBits == 24)
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testStencilBits = 16;
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else if (testStencilBits == 16)
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testStencilBits = 8;
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else
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testStencilBits = 0;
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}
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if (testColorBits == 24)
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perChannelColorBits = 8;
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else
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perChannelColorBits = 4;
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#ifdef __sgi /* Fix for SGIs grabbing too many bits of color */
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if (perChannelColorBits == 4)
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perChannelColorBits = 0; /* Use minimum size for 16-bit color */
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/* Need alpha or else SGIs choose 36+ bit RGB mode */
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SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 1);
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#endif
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SDL_GL_SetAttribute( SDL_GL_RED_SIZE, perChannelColorBits );
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SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, perChannelColorBits );
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SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, perChannelColorBits );
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SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, testDepthBits );
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SDL_GL_SetAttribute( SDL_GL_STENCIL_SIZE, testStencilBits );
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SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, samples ? 1 : 0 );
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SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, samples );
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if(r_stereoEnabled->integer)
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{
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glConfig.stereoEnabled = qtrue;
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SDL_GL_SetAttribute(SDL_GL_STEREO, 1);
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}
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else
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{
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glConfig.stereoEnabled = qfalse;
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SDL_GL_SetAttribute(SDL_GL_STEREO, 0);
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}
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SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
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#if 0 // if multisampling is enabled on X11, this causes create window to fail.
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// If not allowing software GL, demand accelerated
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if( !r_allowSoftwareGL->integer )
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SDL_GL_SetAttribute( SDL_GL_ACCELERATED_VISUAL, 1 );
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#endif
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if( ( SDL_window = SDL_CreateWindow( CLIENT_WINDOW_TITLE, x, y,
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glConfig.vidWidth, glConfig.vidHeight, flags ) ) == NULL )
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{
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ri.Printf( PRINT_DEVELOPER, "SDL_CreateWindow failed: %s\n", SDL_GetError( ) );
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continue;
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}
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if( fullscreen )
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{
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SDL_DisplayMode mode;
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switch( testColorBits )
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{
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case 16: mode.format = SDL_PIXELFORMAT_RGB565; break;
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case 24: mode.format = SDL_PIXELFORMAT_RGB24; break;
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default: ri.Printf( PRINT_DEVELOPER, "testColorBits is %d, can't fullscreen\n", testColorBits ); continue;
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}
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mode.w = glConfig.vidWidth;
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mode.h = glConfig.vidHeight;
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mode.refresh_rate = glConfig.displayFrequency = ri.Cvar_VariableIntegerValue( "r_displayRefresh" );
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mode.driverdata = NULL;
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if( SDL_SetWindowDisplayMode( SDL_window, &mode ) < 0 )
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{
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ri.Printf( PRINT_DEVELOPER, "SDL_SetWindowDisplayMode failed: %s\n", SDL_GetError( ) );
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continue;
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}
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}
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SDL_SetWindowIcon( SDL_window, icon );
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if( ( SDL_glContext = SDL_GL_CreateContext( SDL_window ) ) == NULL )
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{
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ri.Printf( PRINT_DEVELOPER, "SDL_GL_CreateContext failed: %s\n", SDL_GetError( ) );
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continue;
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}
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qglClearColor( 0, 0, 0, 1 );
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qglClear( GL_COLOR_BUFFER_BIT );
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SDL_GL_SwapWindow( SDL_window );
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if( SDL_GL_SetSwapInterval( r_swapInterval->integer ) == -1 )
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{
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ri.Printf( PRINT_DEVELOPER, "SDL_GL_SetSwapInterval failed: %s\n", SDL_GetError( ) );
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}
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glConfig.colorBits = testColorBits;
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glConfig.depthBits = testDepthBits;
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glConfig.stencilBits = testStencilBits;
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ri.Printf( PRINT_ALL, "Using %d color bits, %d depth, %d stencil display.\n",
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glConfig.colorBits, glConfig.depthBits, glConfig.stencilBits );
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break;
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}
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SDL_FreeSurface( icon );
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if( !SDL_window )
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{
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ri.Printf( PRINT_ALL, "Couldn't get a visual\n" );
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return RSERR_INVALID_MODE;
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}
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GLimp_DetectAvailableModes();
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glstring = (char *) qglGetString (GL_RENDERER);
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ri.Printf( PRINT_ALL, "GL_RENDERER: %s\n", glstring );
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return RSERR_OK;
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}
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/*
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===============
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GLimp_StartDriverAndSetMode
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===============
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*/
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static qboolean GLimp_StartDriverAndSetMode(int mode, qboolean fullscreen, qboolean noborder)
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{
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rserr_t err;
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if (!SDL_WasInit(SDL_INIT_VIDEO))
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{
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const char *driverName;
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if (SDL_Init(SDL_INIT_VIDEO) != 0)
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{
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ri.Printf( PRINT_ALL, "SDL_Init( SDL_INIT_VIDEO ) FAILED (%s)\n", SDL_GetError());
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return qfalse;
|
|
}
|
|
|
|
driverName = SDL_GetCurrentVideoDriver( );
|
|
ri.Printf( PRINT_ALL, "SDL using driver \"%s\"\n", driverName );
|
|
ri.Cvar_Set( "r_sdlDriver", driverName );
|
|
}
|
|
|
|
if (fullscreen && ri.Cvar_VariableIntegerValue( "in_nograb" ) )
|
|
{
|
|
ri.Printf( PRINT_ALL, "Fullscreen not allowed with in_nograb 1\n");
|
|
ri.Cvar_Set( "r_fullscreen", "0" );
|
|
r_fullscreen->modified = qfalse;
|
|
fullscreen = qfalse;
|
|
}
|
|
|
|
err = GLimp_SetMode(mode, fullscreen, noborder);
|
|
|
|
switch ( err )
|
|
{
|
|
case RSERR_INVALID_FULLSCREEN:
|
|
ri.Printf( PRINT_ALL, "...WARNING: fullscreen unavailable in this mode\n" );
|
|
return qfalse;
|
|
case RSERR_INVALID_MODE:
|
|
ri.Printf( PRINT_ALL, "...WARNING: could not set the given mode (%d)\n", mode );
|
|
return qfalse;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return qtrue;
|
|
}
|
|
|
|
static qboolean GLimp_HaveExtension(const char *ext)
|
|
{
|
|
const char *ptr = Q_stristr( glConfig.extensions_string, ext );
|
|
if (ptr == NULL)
|
|
return qfalse;
|
|
ptr += strlen(ext);
|
|
return ((*ptr == ' ') || (*ptr == '\0')); // verify it's complete string.
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
GLimp_InitExtensions
|
|
===============
|
|
*/
|
|
static void GLimp_InitExtensions( void )
|
|
{
|
|
if ( !r_allowExtensions->integer )
|
|
{
|
|
ri.Printf( PRINT_ALL, "* IGNORING OPENGL EXTENSIONS *\n" );
|
|
return;
|
|
}
|
|
|
|
ri.Printf( PRINT_ALL, "Initializing OpenGL extensions\n" );
|
|
|
|
glConfig.textureCompression = TC_NONE;
|
|
|
|
// GL_EXT_texture_compression_s3tc
|
|
if ( GLimp_HaveExtension( "GL_ARB_texture_compression" ) &&
|
|
GLimp_HaveExtension( "GL_EXT_texture_compression_s3tc" ) )
|
|
{
|
|
if ( r_ext_compressed_textures->value )
|
|
{
|
|
glConfig.textureCompression = TC_S3TC_ARB;
|
|
ri.Printf( PRINT_ALL, "...using GL_EXT_texture_compression_s3tc\n" );
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...ignoring GL_EXT_texture_compression_s3tc\n" );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...GL_EXT_texture_compression_s3tc not found\n" );
|
|
}
|
|
|
|
// GL_S3_s3tc ... legacy extension before GL_EXT_texture_compression_s3tc.
|
|
if (glConfig.textureCompression == TC_NONE)
|
|
{
|
|
if ( GLimp_HaveExtension( "GL_S3_s3tc" ) )
|
|
{
|
|
if ( r_ext_compressed_textures->value )
|
|
{
|
|
glConfig.textureCompression = TC_S3TC;
|
|
ri.Printf( PRINT_ALL, "...using GL_S3_s3tc\n" );
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...ignoring GL_S3_s3tc\n" );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...GL_S3_s3tc not found\n" );
|
|
}
|
|
}
|
|
|
|
|
|
// GL_EXT_texture_env_add
|
|
glConfig.textureEnvAddAvailable = qfalse;
|
|
if ( GLimp_HaveExtension( "EXT_texture_env_add" ) )
|
|
{
|
|
if ( r_ext_texture_env_add->integer )
|
|
{
|
|
glConfig.textureEnvAddAvailable = qtrue;
|
|
ri.Printf( PRINT_ALL, "...using GL_EXT_texture_env_add\n" );
|
|
}
|
|
else
|
|
{
|
|
glConfig.textureEnvAddAvailable = qfalse;
|
|
ri.Printf( PRINT_ALL, "...ignoring GL_EXT_texture_env_add\n" );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...GL_EXT_texture_env_add not found\n" );
|
|
}
|
|
|
|
// GL_ARB_multitexture
|
|
qglMultiTexCoord2fARB = NULL;
|
|
qglActiveTextureARB = NULL;
|
|
qglClientActiveTextureARB = NULL;
|
|
if ( GLimp_HaveExtension( "GL_ARB_multitexture" ) )
|
|
{
|
|
if ( r_ext_multitexture->value )
|
|
{
|
|
qglMultiTexCoord2fARB = SDL_GL_GetProcAddress( "glMultiTexCoord2fARB" );
|
|
qglActiveTextureARB = SDL_GL_GetProcAddress( "glActiveTextureARB" );
|
|
qglClientActiveTextureARB = SDL_GL_GetProcAddress( "glClientActiveTextureARB" );
|
|
|
|
if ( qglActiveTextureARB )
|
|
{
|
|
GLint glint = 0;
|
|
qglGetIntegerv( GL_MAX_TEXTURE_UNITS_ARB, &glint );
|
|
glConfig.numTextureUnits = (int) glint;
|
|
if ( glConfig.numTextureUnits > 1 )
|
|
{
|
|
ri.Printf( PRINT_ALL, "...using GL_ARB_multitexture\n" );
|
|
}
|
|
else
|
|
{
|
|
qglMultiTexCoord2fARB = NULL;
|
|
qglActiveTextureARB = NULL;
|
|
qglClientActiveTextureARB = NULL;
|
|
ri.Printf( PRINT_ALL, "...not using GL_ARB_multitexture, < 2 texture units\n" );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...ignoring GL_ARB_multitexture\n" );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...GL_ARB_multitexture not found\n" );
|
|
}
|
|
|
|
// GL_EXT_compiled_vertex_array
|
|
if ( GLimp_HaveExtension( "GL_EXT_compiled_vertex_array" ) )
|
|
{
|
|
if ( r_ext_compiled_vertex_array->value )
|
|
{
|
|
ri.Printf( PRINT_ALL, "...using GL_EXT_compiled_vertex_array\n" );
|
|
qglLockArraysEXT = ( void ( APIENTRY * )( GLint, GLint ) ) SDL_GL_GetProcAddress( "glLockArraysEXT" );
|
|
qglUnlockArraysEXT = ( void ( APIENTRY * )( void ) ) SDL_GL_GetProcAddress( "glUnlockArraysEXT" );
|
|
if (!qglLockArraysEXT || !qglUnlockArraysEXT)
|
|
{
|
|
ri.Error (ERR_FATAL, "bad getprocaddress");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...ignoring GL_EXT_compiled_vertex_array\n" );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...GL_EXT_compiled_vertex_array not found\n" );
|
|
}
|
|
|
|
textureFilterAnisotropic = qfalse;
|
|
if ( GLimp_HaveExtension( "GL_EXT_texture_filter_anisotropic" ) )
|
|
{
|
|
if ( r_ext_texture_filter_anisotropic->integer ) {
|
|
qglGetIntegerv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, (GLint *)&maxAnisotropy );
|
|
if ( maxAnisotropy <= 0 ) {
|
|
ri.Printf( PRINT_ALL, "...GL_EXT_texture_filter_anisotropic not properly supported!\n" );
|
|
maxAnisotropy = 0;
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...using GL_EXT_texture_filter_anisotropic (max: %i)\n", maxAnisotropy );
|
|
textureFilterAnisotropic = qtrue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...ignoring GL_EXT_texture_filter_anisotropic\n" );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ri.Printf( PRINT_ALL, "...GL_EXT_texture_filter_anisotropic not found\n" );
|
|
}
|
|
}
|
|
|
|
#define R_MODE_FALLBACK 3 // 640 * 480
|
|
|
|
/*
|
|
===============
|
|
GLimp_Init
|
|
|
|
This routine is responsible for initializing the OS specific portions
|
|
of OpenGL
|
|
===============
|
|
*/
|
|
void GLimp_Init( void )
|
|
{
|
|
ri.Printf( PRINT_DEVELOPER, "Glimp_Init( )\n" );
|
|
|
|
r_allowSoftwareGL = ri.Cvar_Get( "r_allowSoftwareGL", "0", CVAR_LATCH );
|
|
r_sdlDriver = ri.Cvar_Get( "r_sdlDriver", "", CVAR_ROM );
|
|
r_allowResize = ri.Cvar_Get( "r_allowResize", "0", CVAR_ARCHIVE | CVAR_LATCH );
|
|
r_centerWindow = ri.Cvar_Get( "r_centerWindow", "0", CVAR_ARCHIVE | CVAR_LATCH );
|
|
|
|
if( ri.Cvar_VariableIntegerValue( "com_abnormalExit" ) )
|
|
{
|
|
ri.Cvar_Set( "r_mode", va( "%d", R_MODE_FALLBACK ) );
|
|
ri.Cvar_Set( "r_fullscreen", "0" );
|
|
ri.Cvar_Set( "r_centerWindow", "0" );
|
|
ri.Cvar_Set( "com_abnormalExit", "0" );
|
|
}
|
|
|
|
ri.Sys_GLimpInit( );
|
|
|
|
// Create the window and set up the context
|
|
if(GLimp_StartDriverAndSetMode(r_mode->integer, r_fullscreen->integer, r_noborder->integer))
|
|
goto success;
|
|
|
|
// Try again, this time in a platform specific "safe mode"
|
|
ri.Sys_GLimpSafeInit( );
|
|
|
|
if(GLimp_StartDriverAndSetMode(r_mode->integer, r_fullscreen->integer, qfalse))
|
|
goto success;
|
|
|
|
// Finally, try the default screen resolution
|
|
if( r_mode->integer != R_MODE_FALLBACK )
|
|
{
|
|
ri.Printf( PRINT_ALL, "Setting r_mode %d failed, falling back on r_mode %d\n",
|
|
r_mode->integer, R_MODE_FALLBACK );
|
|
|
|
if(GLimp_StartDriverAndSetMode(R_MODE_FALLBACK, qfalse, qfalse))
|
|
goto success;
|
|
}
|
|
|
|
// Nothing worked, give up
|
|
ri.Error( ERR_FATAL, "GLimp_Init() - could not load OpenGL subsystem" );
|
|
|
|
success:
|
|
// These values force the UI to disable driver selection
|
|
glConfig.driverType = GLDRV_ICD;
|
|
glConfig.hardwareType = GLHW_GENERIC;
|
|
|
|
// Only using SDL_SetWindowBrightness to determine if hardware gamma is supported
|
|
glConfig.deviceSupportsGamma = !r_ignorehwgamma->integer &&
|
|
SDL_SetWindowBrightness( SDL_window, 1.0f ) >= 0;
|
|
|
|
// 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 ) );
|
|
|
|
// initialize extensions
|
|
GLimp_InitExtensions( );
|
|
|
|
ri.Cvar_Get( "r_availableModes", "", CVAR_ROM );
|
|
|
|
// This depends on SDL_INIT_VIDEO, hence having it here
|
|
ri.IN_Init( SDL_window );
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
GLimp_EndFrame
|
|
|
|
Responsible for doing a swapbuffers
|
|
===============
|
|
*/
|
|
void GLimp_EndFrame( void )
|
|
{
|
|
// don't flip if drawing to front buffer
|
|
if ( Q_stricmp( r_drawBuffer->string, "GL_FRONT" ) != 0 )
|
|
{
|
|
SDL_GL_SwapWindow( SDL_window );
|
|
}
|
|
|
|
if( r_fullscreen->modified )
|
|
{
|
|
int fullscreen;
|
|
qboolean needToToggle;
|
|
qboolean sdlToggled = qfalse;
|
|
|
|
// Find out the current state
|
|
fullscreen = !!( SDL_GetWindowFlags( SDL_window ) & SDL_WINDOW_FULLSCREEN );
|
|
|
|
if( r_fullscreen->integer && ri.Cvar_VariableIntegerValue( "in_nograb" ) )
|
|
{
|
|
ri.Printf( PRINT_ALL, "Fullscreen not allowed with in_nograb 1\n");
|
|
ri.Cvar_Set( "r_fullscreen", "0" );
|
|
r_fullscreen->modified = qfalse;
|
|
}
|
|
|
|
// Is the state we want different from the current state?
|
|
needToToggle = !!r_fullscreen->integer != fullscreen;
|
|
|
|
if( needToToggle )
|
|
{
|
|
sdlToggled = SDL_SetWindowFullscreen( SDL_window, r_fullscreen->integer ) >= 0;
|
|
|
|
// SDL_WM_ToggleFullScreen didn't work, so do it the slow way
|
|
if( !sdlToggled )
|
|
ri.Cmd_ExecuteText(EXEC_APPEND, "vid_restart\n");
|
|
|
|
ri.IN_Restart( );
|
|
}
|
|
|
|
r_fullscreen->modified = qfalse;
|
|
}
|
|
}
|