mirror of
https://github.com/UberGames/lilium-voyager.git
synced 2024-12-14 22:20:58 +00:00
1010 lines
24 KiB
C
1010 lines
24 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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#if !SDL_VERSION_ATLEAST(1, 2, 10)
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#define SDL_GL_ACCELERATED_VISUAL 15
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#define SDL_GL_SWAP_CONTROL 16
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#elif MINSDL_PATCH >= 10
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#error Code block no longer necessary, please remove
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#endif
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#ifdef SMP
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# ifdef USE_LOCAL_HEADERS
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# include "SDL_thread.h"
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# else
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# include <SDL_thread.h>
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# endif
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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 "../renderer/tr_local.h"
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#include "../client/client.h"
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#include "../sys/sys_local.h"
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#include "sdl_icon.h"
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/* Just hack it for now. */
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#ifdef MACOS_X
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#include <OpenGL/OpenGL.h>
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typedef CGLContextObj QGLContext;
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#define GLimp_GetCurrentContext() CGLGetCurrentContext()
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#define GLimp_SetCurrentContext(ctx) CGLSetCurrentContext(ctx)
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#else
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typedef void *QGLContext;
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#define GLimp_GetCurrentContext() (NULL)
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#define GLimp_SetCurrentContext(ctx)
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#endif
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static QGLContext opengl_context;
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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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static SDL_Surface *screen = NULL;
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static const SDL_VideoInfo *videoInfo = 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_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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IN_Shutdown();
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SDL_QuitSubSystem( SDL_INIT_VIDEO );
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screen = NULL;
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Com_Memset( &glConfig, 0, sizeof( glConfig ) );
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Com_Memset( &glState, 0, sizeof( glState ) );
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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 aspectDiffA = fabs( ( (float)modeA->w / (float)modeA->h ) - displayAspect );
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float aspectDiffB = fabs( ( (float)modeB->w / (float)modeB->h ) - 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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{
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if( modeA->w == modeB->w )
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return modeA->h - modeB->h;
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else
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return modeA->w - modeB->w;
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}
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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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char buf[ MAX_STRING_CHARS ] = { 0 };
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SDL_Rect **modes;
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int numModes;
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int i;
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SDL_PixelFormat *format = NULL;
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#if SDL_VERSION_ATLEAST(1, 2, 10)
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format = videoInfo->vfmt;
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# if MINSDL_PATCH >= 10
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# error Ifdeffery no longer necessary, please remove
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# endif
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#endif
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modes = SDL_ListModes( format, SDL_OPENGL | SDL_FULLSCREEN );
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if( !modes )
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{
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ri.Printf( PRINT_WARNING, "Can't get list of available modes\n" );
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return;
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}
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if( modes == (SDL_Rect **)-1 )
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{
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ri.Printf( PRINT_ALL, "Display supports any resolution\n" );
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return; // can set any resolution
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}
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for( numModes = 0; modes[ numModes ]; numModes++ );
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if(numModes > 1)
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qsort( modes+1, numModes-1, 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%x, 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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}
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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 )
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{
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const char* glstring;
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int sdlcolorbits;
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int colorbits, depthbits, stencilbits;
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int tcolorbits, tdepthbits, tstencilbits;
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int samples;
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int i = 0;
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SDL_Surface *vidscreen = NULL;
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Uint32 flags = SDL_OPENGL;
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ri.Printf( PRINT_ALL, "Initializing OpenGL display\n");
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#if !SDL_VERSION_ATLEAST(1, 2, 10)
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// 1.2.10 is needed to get the desktop resolution
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displayAspect = 4.0f / 3.0f;
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#elif MINSDL_PATCH >= 10
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# error Ifdeffery no longer necessary, please remove
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#else
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if( videoInfo == NULL )
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{
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static SDL_VideoInfo sVideoInfo;
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static SDL_PixelFormat sPixelFormat;
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videoInfo = SDL_GetVideoInfo( );
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// Take a copy of the videoInfo
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Com_Memcpy( &sPixelFormat, videoInfo->vfmt, sizeof( SDL_PixelFormat ) );
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sPixelFormat.palette = NULL; // Should already be the case
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Com_Memcpy( &sVideoInfo, videoInfo, sizeof( SDL_VideoInfo ) );
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sVideoInfo.vfmt = &sPixelFormat;
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videoInfo = &sVideoInfo;
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// Guess the display aspect ratio through the desktop resolution
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// by assuming (relatively safely) that it is set at or close to
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// the display's native aspect ratio
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displayAspect = (float)videoInfo->current_w / (float)videoInfo->current_h;
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ri.Printf( PRINT_ALL, "Estimated display aspect: %.3f\n", displayAspect );
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}
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#endif
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ri.Printf (PRINT_ALL, "...setting mode %d:", mode );
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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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if (fullscreen)
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{
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flags |= SDL_FULLSCREEN;
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glConfig.isFullscreen = qtrue;
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}
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else
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glConfig.isFullscreen = qfalse;
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if (!r_colorbits->value)
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colorbits = 24;
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else
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colorbits = r_colorbits->value;
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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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// 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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tcolorbits = colorbits;
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tdepthbits = depthbits;
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tstencilbits = stencilbits;
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if ((i % 4) == 3)
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{ // reduce colorbits
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if (tcolorbits == 24)
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tcolorbits = 16;
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}
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if ((i % 4) == 2)
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{ // reduce depthbits
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if (tdepthbits == 24)
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tdepthbits = 16;
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else if (tdepthbits == 16)
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tdepthbits = 8;
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}
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if ((i % 4) == 1)
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{ // reduce stencilbits
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if (tstencilbits == 24)
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tstencilbits = 16;
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else if (tstencilbits == 16)
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tstencilbits = 8;
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else
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tstencilbits = 0;
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}
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sdlcolorbits = 4;
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if (tcolorbits == 24)
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sdlcolorbits = 8;
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SDL_GL_SetAttribute( SDL_GL_RED_SIZE, sdlcolorbits );
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SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, sdlcolorbits );
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SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, sdlcolorbits );
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SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, tdepthbits );
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SDL_GL_SetAttribute( SDL_GL_STENCIL_SIZE, tstencilbits );
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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 // See http://bugzilla.icculus.org/show_bug.cgi?id=3526
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// If not allowing software GL, demand accelerated
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if( !r_allowSoftwareGL->integer )
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{
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if( SDL_GL_SetAttribute( SDL_GL_ACCELERATED_VISUAL, 1 ) < 0 )
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{
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ri.Printf( PRINT_ALL, "Unable to guarantee accelerated "
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"visual with libSDL < 1.2.10\n" );
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}
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}
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#endif
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if( SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, r_swapInterval->integer ) < 0 )
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ri.Printf( PRINT_ALL, "r_swapInterval requires libSDL >= 1.2.10\n" );
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#ifdef USE_ICON
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{
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SDL_Surface *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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SDL_WM_SetIcon( icon, NULL );
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SDL_FreeSurface( icon );
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}
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#endif
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SDL_WM_SetCaption(CLIENT_WINDOW_TITLE, CLIENT_WINDOW_MIN_TITLE);
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SDL_ShowCursor(0);
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if (!(vidscreen = SDL_SetVideoMode(glConfig.vidWidth, glConfig.vidHeight, colorbits, flags)))
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{
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ri.Printf( PRINT_DEVELOPER, "SDL_SetVideoMode failed: %s\n", SDL_GetError( ) );
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continue;
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}
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opengl_context = GLimp_GetCurrentContext();
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ri.Printf( PRINT_ALL, "Using %d/%d/%d Color bits, %d depth, %d stencil display.\n",
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sdlcolorbits, sdlcolorbits, sdlcolorbits, tdepthbits, tstencilbits);
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glConfig.colorBits = tcolorbits;
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glConfig.depthBits = tdepthbits;
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glConfig.stencilBits = tstencilbits;
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break;
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}
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GLimp_DetectAvailableModes();
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if (!vidscreen)
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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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screen = vidscreen;
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|
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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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|
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return RSERR_OK;
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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 )
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|
{
|
|
rserr_t err;
|
|
|
|
if (!SDL_WasInit(SDL_INIT_VIDEO))
|
|
{
|
|
char driverName[ 64 ];
|
|
|
|
if (SDL_Init(SDL_INIT_VIDEO) == -1)
|
|
{
|
|
ri.Printf( PRINT_ALL, "SDL_Init( SDL_INIT_VIDEO ) FAILED (%s)\n",
|
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SDL_GetError());
|
|
return qfalse;
|
|
}
|
|
|
|
SDL_VideoDriverName( driverName, sizeof( driverName ) - 1 );
|
|
ri.Printf( PRINT_ALL, "SDL using driver \"%s\"\n", driverName );
|
|
Cvar_Set( "r_sdlDriver", driverName );
|
|
}
|
|
|
|
if (fullscreen && 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 );
|
|
|
|
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 )
|
|
{
|
|
qboolean success = qtrue;
|
|
|
|
r_allowSoftwareGL = ri.Cvar_Get( "r_allowSoftwareGL", "0", CVAR_LATCH );
|
|
r_sdlDriver = ri.Cvar_Get( "r_sdlDriver", "", CVAR_ROM );
|
|
|
|
Sys_GLimpInit( );
|
|
|
|
// create the window and set up the context
|
|
if( !GLimp_StartDriverAndSetMode( r_mode->integer, r_fullscreen->integer ) )
|
|
{
|
|
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 );
|
|
ri.Cvar_Set("r_ext_multisample", "0");
|
|
if( !GLimp_StartDriverAndSetMode( R_MODE_FALLBACK, r_fullscreen->integer ) )
|
|
success = qfalse;
|
|
}
|
|
else
|
|
success = qfalse;
|
|
}
|
|
|
|
if( !success )
|
|
ri.Error( ERR_FATAL, "GLimp_Init() - could not load OpenGL subsystem\n" );
|
|
|
|
// This values force the UI to disable driver selection
|
|
glConfig.driverType = GLDRV_ICD;
|
|
glConfig.hardwareType = GLHW_GENERIC;
|
|
glConfig.deviceSupportsGamma = !!( SDL_SetGamma( 1.0f, 1.0f, 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
|
|
IN_Init( );
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
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_SwapBuffers();
|
|
}
|
|
|
|
if( r_fullscreen->modified )
|
|
{
|
|
qboolean fullscreen;
|
|
qboolean needToToggle = qtrue;
|
|
qboolean sdlToggled = qfalse;
|
|
SDL_Surface *s = SDL_GetVideoSurface( );
|
|
|
|
if( s )
|
|
{
|
|
// Find out the current state
|
|
fullscreen = !!( s->flags & SDL_FULLSCREEN );
|
|
|
|
if( r_fullscreen->integer && 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_WM_ToggleFullScreen( s );
|
|
}
|
|
|
|
if( needToToggle )
|
|
{
|
|
// SDL_WM_ToggleFullScreen didn't work, so do it the slow way
|
|
if( !sdlToggled )
|
|
Cbuf_AddText( "vid_restart" );
|
|
|
|
IN_Restart( );
|
|
}
|
|
|
|
r_fullscreen->modified = qfalse;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
#ifdef SMP
|
|
/*
|
|
===========================================================
|
|
|
|
SMP acceleration
|
|
|
|
===========================================================
|
|
*/
|
|
|
|
/*
|
|
* I have no idea if this will even work...most platforms don't offer
|
|
* thread-safe OpenGL libraries, and it looks like the original Linux
|
|
* code counted on each thread claiming the GL context with glXMakeCurrent(),
|
|
* which you can't currently do in SDL. We'll just have to hope for the best.
|
|
*/
|
|
|
|
static SDL_mutex *smpMutex = NULL;
|
|
static SDL_cond *renderCommandsEvent = NULL;
|
|
static SDL_cond *renderCompletedEvent = NULL;
|
|
static void (*glimpRenderThread)( void ) = NULL;
|
|
static SDL_Thread *renderThread = NULL;
|
|
|
|
/*
|
|
===============
|
|
GLimp_ShutdownRenderThread
|
|
===============
|
|
*/
|
|
static void GLimp_ShutdownRenderThread(void)
|
|
{
|
|
if (smpMutex != NULL)
|
|
{
|
|
SDL_DestroyMutex(smpMutex);
|
|
smpMutex = NULL;
|
|
}
|
|
|
|
if (renderCommandsEvent != NULL)
|
|
{
|
|
SDL_DestroyCond(renderCommandsEvent);
|
|
renderCommandsEvent = NULL;
|
|
}
|
|
|
|
if (renderCompletedEvent != NULL)
|
|
{
|
|
SDL_DestroyCond(renderCompletedEvent);
|
|
renderCompletedEvent = NULL;
|
|
}
|
|
|
|
glimpRenderThread = NULL;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
GLimp_RenderThreadWrapper
|
|
===============
|
|
*/
|
|
static int GLimp_RenderThreadWrapper( void *arg )
|
|
{
|
|
Com_Printf( "Render thread starting\n" );
|
|
|
|
glimpRenderThread();
|
|
|
|
GLimp_SetCurrentContext(NULL);
|
|
|
|
Com_Printf( "Render thread terminating\n" );
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
GLimp_SpawnRenderThread
|
|
===============
|
|
*/
|
|
qboolean GLimp_SpawnRenderThread( void (*function)( void ) )
|
|
{
|
|
static qboolean warned = qfalse;
|
|
if (!warned)
|
|
{
|
|
Com_Printf("WARNING: You enable r_smp at your own risk!\n");
|
|
warned = qtrue;
|
|
}
|
|
|
|
#ifndef MACOS_X
|
|
return qfalse; /* better safe than sorry for now. */
|
|
#endif
|
|
|
|
if (renderThread != NULL) /* hopefully just a zombie at this point... */
|
|
{
|
|
Com_Printf("Already a render thread? Trying to clean it up...\n");
|
|
SDL_WaitThread(renderThread, NULL);
|
|
renderThread = NULL;
|
|
GLimp_ShutdownRenderThread();
|
|
}
|
|
|
|
smpMutex = SDL_CreateMutex();
|
|
if (smpMutex == NULL)
|
|
{
|
|
Com_Printf( "smpMutex creation failed: %s\n", SDL_GetError() );
|
|
GLimp_ShutdownRenderThread();
|
|
return qfalse;
|
|
}
|
|
|
|
renderCommandsEvent = SDL_CreateCond();
|
|
if (renderCommandsEvent == NULL)
|
|
{
|
|
Com_Printf( "renderCommandsEvent creation failed: %s\n", SDL_GetError() );
|
|
GLimp_ShutdownRenderThread();
|
|
return qfalse;
|
|
}
|
|
|
|
renderCompletedEvent = SDL_CreateCond();
|
|
if (renderCompletedEvent == NULL)
|
|
{
|
|
Com_Printf( "renderCompletedEvent creation failed: %s\n", SDL_GetError() );
|
|
GLimp_ShutdownRenderThread();
|
|
return qfalse;
|
|
}
|
|
|
|
glimpRenderThread = function;
|
|
renderThread = SDL_CreateThread(GLimp_RenderThreadWrapper, NULL);
|
|
if ( renderThread == NULL )
|
|
{
|
|
ri.Printf( PRINT_ALL, "SDL_CreateThread() returned %s", SDL_GetError() );
|
|
GLimp_ShutdownRenderThread();
|
|
return qfalse;
|
|
}
|
|
else
|
|
{
|
|
// tma 01/09/07: don't think this is necessary anyway?
|
|
//
|
|
// !!! FIXME: No detach API available in SDL!
|
|
//ret = pthread_detach( renderThread );
|
|
//if ( ret ) {
|
|
//ri.Printf( PRINT_ALL, "pthread_detach returned %d: %s", ret, strerror( ret ) );
|
|
//}
|
|
}
|
|
|
|
return qtrue;
|
|
}
|
|
|
|
static volatile void *smpData = NULL;
|
|
static volatile qboolean smpDataReady;
|
|
|
|
/*
|
|
===============
|
|
GLimp_RendererSleep
|
|
===============
|
|
*/
|
|
void *GLimp_RendererSleep( void )
|
|
{
|
|
void *data = NULL;
|
|
|
|
GLimp_SetCurrentContext(NULL);
|
|
|
|
SDL_LockMutex(smpMutex);
|
|
{
|
|
smpData = NULL;
|
|
smpDataReady = qfalse;
|
|
|
|
// after this, the front end can exit GLimp_FrontEndSleep
|
|
SDL_CondSignal(renderCompletedEvent);
|
|
|
|
while ( !smpDataReady )
|
|
SDL_CondWait(renderCommandsEvent, smpMutex);
|
|
|
|
data = (void *)smpData;
|
|
}
|
|
SDL_UnlockMutex(smpMutex);
|
|
|
|
GLimp_SetCurrentContext(opengl_context);
|
|
|
|
return data;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
GLimp_FrontEndSleep
|
|
===============
|
|
*/
|
|
void GLimp_FrontEndSleep( void )
|
|
{
|
|
SDL_LockMutex(smpMutex);
|
|
{
|
|
while ( smpData )
|
|
SDL_CondWait(renderCompletedEvent, smpMutex);
|
|
}
|
|
SDL_UnlockMutex(smpMutex);
|
|
|
|
GLimp_SetCurrentContext(opengl_context);
|
|
}
|
|
|
|
/*
|
|
===============
|
|
GLimp_WakeRenderer
|
|
===============
|
|
*/
|
|
void GLimp_WakeRenderer( void *data )
|
|
{
|
|
GLimp_SetCurrentContext(NULL);
|
|
|
|
SDL_LockMutex(smpMutex);
|
|
{
|
|
assert( smpData == NULL );
|
|
smpData = data;
|
|
smpDataReady = qtrue;
|
|
|
|
// after this, the renderer can continue through GLimp_RendererSleep
|
|
SDL_CondSignal(renderCommandsEvent);
|
|
}
|
|
SDL_UnlockMutex(smpMutex);
|
|
}
|
|
|
|
#else
|
|
|
|
// No SMP - stubs
|
|
void GLimp_RenderThreadWrapper( void *arg )
|
|
{
|
|
}
|
|
|
|
qboolean GLimp_SpawnRenderThread( void (*function)( void ) )
|
|
{
|
|
ri.Printf( PRINT_WARNING, "ERROR: SMP support was disabled at compile time\n");
|
|
return qfalse;
|
|
}
|
|
|
|
void *GLimp_RendererSleep( void )
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
void GLimp_FrontEndSleep( void )
|
|
{
|
|
}
|
|
|
|
void GLimp_WakeRenderer( void *data )
|
|
{
|
|
}
|
|
|
|
#endif
|