diff options
Diffstat (limited to 'code/renderer/tr_cmds.c')
| -rwxr-xr-x | code/renderer/tr_cmds.c | 894 |
1 files changed, 447 insertions, 447 deletions
diff --git a/code/renderer/tr_cmds.c b/code/renderer/tr_cmds.c index 3808dc3..33f43cc 100755 --- a/code/renderer/tr_cmds.c +++ b/code/renderer/tr_cmds.c @@ -1,447 +1,447 @@ -/*
-===========================================================================
-Copyright (C) 1999-2005 Id Software, Inc.
-
-This file is part of Quake III Arena source code.
-
-Quake III Arena source code is free software; you can redistribute it
-and/or modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation; either version 2 of the License,
-or (at your option) any later version.
-
-Quake III Arena source code is distributed in the hope that it will be
-useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with Foobar; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-===========================================================================
-*/
-#include "tr_local.h"
-
-volatile renderCommandList_t *renderCommandList;
-
-volatile qboolean renderThreadActive;
-
-
-/*
-=====================
-R_PerformanceCounters
-=====================
-*/
-void R_PerformanceCounters( void ) {
- if ( !r_speeds->integer ) {
- // clear the counters even if we aren't printing
- Com_Memset( &tr.pc, 0, sizeof( tr.pc ) );
- Com_Memset( &backEnd.pc, 0, sizeof( backEnd.pc ) );
- return;
- }
-
- if (r_speeds->integer == 1) {
- ri.Printf (PRINT_ALL, "%i/%i shaders/surfs %i leafs %i verts %i/%i tris %.2f mtex %.2f dc\n",
- backEnd.pc.c_shaders, backEnd.pc.c_surfaces, tr.pc.c_leafs, backEnd.pc.c_vertexes,
- backEnd.pc.c_indexes/3, backEnd.pc.c_totalIndexes/3,
- R_SumOfUsedImages()/(1000000.0f), backEnd.pc.c_overDraw / (float)(glConfig.vidWidth * glConfig.vidHeight) );
- } else if (r_speeds->integer == 2) {
- ri.Printf (PRINT_ALL, "(patch) %i sin %i sclip %i sout %i bin %i bclip %i bout\n",
- tr.pc.c_sphere_cull_patch_in, tr.pc.c_sphere_cull_patch_clip, tr.pc.c_sphere_cull_patch_out,
- tr.pc.c_box_cull_patch_in, tr.pc.c_box_cull_patch_clip, tr.pc.c_box_cull_patch_out );
- ri.Printf (PRINT_ALL, "(md3) %i sin %i sclip %i sout %i bin %i bclip %i bout\n",
- tr.pc.c_sphere_cull_md3_in, tr.pc.c_sphere_cull_md3_clip, tr.pc.c_sphere_cull_md3_out,
- tr.pc.c_box_cull_md3_in, tr.pc.c_box_cull_md3_clip, tr.pc.c_box_cull_md3_out );
- } else if (r_speeds->integer == 3) {
- ri.Printf (PRINT_ALL, "viewcluster: %i\n", tr.viewCluster );
- } else if (r_speeds->integer == 4) {
- if ( backEnd.pc.c_dlightVertexes ) {
- ri.Printf (PRINT_ALL, "dlight srf:%i culled:%i verts:%i tris:%i\n",
- tr.pc.c_dlightSurfaces, tr.pc.c_dlightSurfacesCulled,
- backEnd.pc.c_dlightVertexes, backEnd.pc.c_dlightIndexes / 3 );
- }
- }
- else if (r_speeds->integer == 5 )
- {
- ri.Printf( PRINT_ALL, "zFar: %.0f\n", tr.viewParms.zFar );
- }
- else if (r_speeds->integer == 6 )
- {
- ri.Printf( PRINT_ALL, "flare adds:%i tests:%i renders:%i\n",
- backEnd.pc.c_flareAdds, backEnd.pc.c_flareTests, backEnd.pc.c_flareRenders );
- }
-
- Com_Memset( &tr.pc, 0, sizeof( tr.pc ) );
- Com_Memset( &backEnd.pc, 0, sizeof( backEnd.pc ) );
-}
-
-
-/*
-====================
-R_InitCommandBuffers
-====================
-*/
-void R_InitCommandBuffers( void ) {
- glConfig.smpActive = qfalse;
- if ( r_smp->integer ) {
- ri.Printf( PRINT_ALL, "Trying SMP acceleration...\n" );
- if ( GLimp_SpawnRenderThread( RB_RenderThread ) ) {
- ri.Printf( PRINT_ALL, "...succeeded.\n" );
- glConfig.smpActive = qtrue;
- } else {
- ri.Printf( PRINT_ALL, "...failed.\n" );
- }
- }
-}
-
-/*
-====================
-R_ShutdownCommandBuffers
-====================
-*/
-void R_ShutdownCommandBuffers( void ) {
- // kill the rendering thread
- if ( glConfig.smpActive ) {
- GLimp_WakeRenderer( NULL );
- glConfig.smpActive = qfalse;
- }
-}
-
-/*
-====================
-R_IssueRenderCommands
-====================
-*/
-int c_blockedOnRender;
-int c_blockedOnMain;
-
-void R_IssueRenderCommands( qboolean runPerformanceCounters ) {
- renderCommandList_t *cmdList;
-
- cmdList = &backEndData[tr.smpFrame]->commands;
- assert(cmdList); // bk001205
- // add an end-of-list command
- *(int *)(cmdList->cmds + cmdList->used) = RC_END_OF_LIST;
-
- // clear it out, in case this is a sync and not a buffer flip
- cmdList->used = 0;
-
- if ( glConfig.smpActive ) {
- // if the render thread is not idle, wait for it
- if ( renderThreadActive ) {
- c_blockedOnRender++;
- if ( r_showSmp->integer ) {
- ri.Printf( PRINT_ALL, "R" );
- }
- } else {
- c_blockedOnMain++;
- if ( r_showSmp->integer ) {
- ri.Printf( PRINT_ALL, "." );
- }
- }
-
- // sleep until the renderer has completed
- GLimp_FrontEndSleep();
- }
-
- // at this point, the back end thread is idle, so it is ok
- // to look at it's performance counters
- if ( runPerformanceCounters ) {
- R_PerformanceCounters();
- }
-
- // actually start the commands going
- if ( !r_skipBackEnd->integer ) {
- // let it start on the new batch
- if ( !glConfig.smpActive ) {
- RB_ExecuteRenderCommands( cmdList->cmds );
- } else {
- GLimp_WakeRenderer( cmdList );
- }
- }
-}
-
-
-/*
-====================
-R_SyncRenderThread
-
-Issue any pending commands and wait for them to complete.
-After exiting, the render thread will have completed its work
-and will remain idle and the main thread is free to issue
-OpenGL calls until R_IssueRenderCommands is called.
-====================
-*/
-void R_SyncRenderThread( void ) {
- if ( !tr.registered ) {
- return;
- }
- R_IssueRenderCommands( qfalse );
-
- if ( !glConfig.smpActive ) {
- return;
- }
- GLimp_FrontEndSleep();
-}
-
-/*
-============
-R_GetCommandBuffer
-
-make sure there is enough command space, waiting on the
-render thread if needed.
-============
-*/
-void *R_GetCommandBuffer( int bytes ) {
- renderCommandList_t *cmdList;
-
- cmdList = &backEndData[tr.smpFrame]->commands;
-
- // always leave room for the end of list command
- if ( cmdList->used + bytes + 4 > MAX_RENDER_COMMANDS ) {
- if ( bytes > MAX_RENDER_COMMANDS - 4 ) {
- ri.Error( ERR_FATAL, "R_GetCommandBuffer: bad size %i", bytes );
- }
- // if we run out of room, just start dropping commands
- return NULL;
- }
-
- cmdList->used += bytes;
-
- return cmdList->cmds + cmdList->used - bytes;
-}
-
-
-/*
-=============
-R_AddDrawSurfCmd
-
-=============
-*/
-void R_AddDrawSurfCmd( drawSurf_t *drawSurfs, int numDrawSurfs ) {
- drawSurfsCommand_t *cmd;
-
- cmd = R_GetCommandBuffer( sizeof( *cmd ) );
- if ( !cmd ) {
- return;
- }
- cmd->commandId = RC_DRAW_SURFS;
-
- cmd->drawSurfs = drawSurfs;
- cmd->numDrawSurfs = numDrawSurfs;
-
- cmd->refdef = tr.refdef;
- cmd->viewParms = tr.viewParms;
-}
-
-
-/*
-=============
-RE_SetColor
-
-Passing NULL will set the color to white
-=============
-*/
-void RE_SetColor( const float *rgba ) {
- setColorCommand_t *cmd;
-
- if ( !tr.registered ) {
- return;
- }
- cmd = R_GetCommandBuffer( sizeof( *cmd ) );
- if ( !cmd ) {
- return;
- }
- cmd->commandId = RC_SET_COLOR;
- if ( !rgba ) {
- static float colorWhite[4] = { 1, 1, 1, 1 };
-
- rgba = colorWhite;
- }
-
- cmd->color[0] = rgba[0];
- cmd->color[1] = rgba[1];
- cmd->color[2] = rgba[2];
- cmd->color[3] = rgba[3];
-}
-
-
-/*
-=============
-RE_StretchPic
-=============
-*/
-void RE_StretchPic ( float x, float y, float w, float h,
- float s1, float t1, float s2, float t2, qhandle_t hShader ) {
- stretchPicCommand_t *cmd;
-
- if (!tr.registered) {
- return;
- }
- cmd = R_GetCommandBuffer( sizeof( *cmd ) );
- if ( !cmd ) {
- return;
- }
- cmd->commandId = RC_STRETCH_PIC;
- cmd->shader = R_GetShaderByHandle( hShader );
- cmd->x = x;
- cmd->y = y;
- cmd->w = w;
- cmd->h = h;
- cmd->s1 = s1;
- cmd->t1 = t1;
- cmd->s2 = s2;
- cmd->t2 = t2;
-}
-
-
-/*
-====================
-RE_BeginFrame
-
-If running in stereo, RE_BeginFrame will be called twice
-for each RE_EndFrame
-====================
-*/
-void RE_BeginFrame( stereoFrame_t stereoFrame ) {
- drawBufferCommand_t *cmd;
-
- if ( !tr.registered ) {
- return;
- }
- glState.finishCalled = qfalse;
-
- tr.frameCount++;
- tr.frameSceneNum = 0;
-
- //
- // do overdraw measurement
- //
- if ( r_measureOverdraw->integer )
- {
- if ( glConfig.stencilBits < 4 )
- {
- ri.Printf( PRINT_ALL, "Warning: not enough stencil bits to measure overdraw: %d\n", glConfig.stencilBits );
- ri.Cvar_Set( "r_measureOverdraw", "0" );
- r_measureOverdraw->modified = qfalse;
- }
- else if ( r_shadows->integer == 2 )
- {
- ri.Printf( PRINT_ALL, "Warning: stencil shadows and overdraw measurement are mutually exclusive\n" );
- ri.Cvar_Set( "r_measureOverdraw", "0" );
- r_measureOverdraw->modified = qfalse;
- }
- else
- {
- R_SyncRenderThread();
- qglEnable( GL_STENCIL_TEST );
- qglStencilMask( ~0U );
- qglClearStencil( 0U );
- qglStencilFunc( GL_ALWAYS, 0U, ~0U );
- qglStencilOp( GL_KEEP, GL_INCR, GL_INCR );
- }
- r_measureOverdraw->modified = qfalse;
- }
- else
- {
- // this is only reached if it was on and is now off
- if ( r_measureOverdraw->modified ) {
- R_SyncRenderThread();
- qglDisable( GL_STENCIL_TEST );
- }
- r_measureOverdraw->modified = qfalse;
- }
-
- //
- // texturemode stuff
- //
- if ( r_textureMode->modified ) {
- R_SyncRenderThread();
- GL_TextureMode( r_textureMode->string );
- r_textureMode->modified = qfalse;
- }
-
- //
- // gamma stuff
- //
- if ( r_gamma->modified ) {
- r_gamma->modified = qfalse;
-
- R_SyncRenderThread();
- R_SetColorMappings();
- }
-
- // check for errors
- if ( !r_ignoreGLErrors->integer ) {
- int err;
-
- R_SyncRenderThread();
- if ( ( err = qglGetError() ) != GL_NO_ERROR ) {
- ri.Error( ERR_FATAL, "RE_BeginFrame() - glGetError() failed (0x%x)!\n", err );
- }
- }
-
- //
- // draw buffer stuff
- //
- cmd = R_GetCommandBuffer( sizeof( *cmd ) );
- if ( !cmd ) {
- return;
- }
- cmd->commandId = RC_DRAW_BUFFER;
-
- if ( glConfig.stereoEnabled ) {
- if ( stereoFrame == STEREO_LEFT ) {
- cmd->buffer = (int)GL_BACK_LEFT;
- } else if ( stereoFrame == STEREO_RIGHT ) {
- cmd->buffer = (int)GL_BACK_RIGHT;
- } else {
- ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame );
- }
- } else {
- if ( stereoFrame != STEREO_CENTER ) {
- ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is disabled, but stereoFrame was %i", stereoFrame );
- }
- if ( !Q_stricmp( r_drawBuffer->string, "GL_FRONT" ) ) {
- cmd->buffer = (int)GL_FRONT;
- } else {
- cmd->buffer = (int)GL_BACK;
- }
- }
-}
-
-
-/*
-=============
-RE_EndFrame
-
-Returns the number of msec spent in the back end
-=============
-*/
-void RE_EndFrame( int *frontEndMsec, int *backEndMsec ) {
- swapBuffersCommand_t *cmd;
-
- if ( !tr.registered ) {
- return;
- }
- cmd = R_GetCommandBuffer( sizeof( *cmd ) );
- if ( !cmd ) {
- return;
- }
- cmd->commandId = RC_SWAP_BUFFERS;
-
- R_IssueRenderCommands( qtrue );
-
- // use the other buffers next frame, because another CPU
- // may still be rendering into the current ones
- R_ToggleSmpFrame();
-
- if ( frontEndMsec ) {
- *frontEndMsec = tr.frontEndMsec;
- }
- tr.frontEndMsec = 0;
- if ( backEndMsec ) {
- *backEndMsec = backEnd.pc.msec;
- }
- backEnd.pc.msec = 0;
-}
-
+/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. + +This file is part of Quake III Arena source code. + +Quake III Arena source code is free software; you can redistribute it +and/or modify it under the terms of the GNU General Public License as +published by the Free Software Foundation; either version 2 of the License, +or (at your option) any later version. + +Quake III Arena source code is distributed in the hope that it will be +useful, but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with Foobar; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +#include "tr_local.h" + +volatile renderCommandList_t *renderCommandList; + +volatile qboolean renderThreadActive; + + +/* +===================== +R_PerformanceCounters +===================== +*/ +void R_PerformanceCounters( void ) { + if ( !r_speeds->integer ) { + // clear the counters even if we aren't printing + Com_Memset( &tr.pc, 0, sizeof( tr.pc ) ); + Com_Memset( &backEnd.pc, 0, sizeof( backEnd.pc ) ); + return; + } + + if (r_speeds->integer == 1) { + ri.Printf (PRINT_ALL, "%i/%i shaders/surfs %i leafs %i verts %i/%i tris %.2f mtex %.2f dc\n", + backEnd.pc.c_shaders, backEnd.pc.c_surfaces, tr.pc.c_leafs, backEnd.pc.c_vertexes, + backEnd.pc.c_indexes/3, backEnd.pc.c_totalIndexes/3, + R_SumOfUsedImages()/(1000000.0f), backEnd.pc.c_overDraw / (float)(glConfig.vidWidth * glConfig.vidHeight) ); + } else if (r_speeds->integer == 2) { + ri.Printf (PRINT_ALL, "(patch) %i sin %i sclip %i sout %i bin %i bclip %i bout\n", + tr.pc.c_sphere_cull_patch_in, tr.pc.c_sphere_cull_patch_clip, tr.pc.c_sphere_cull_patch_out, + tr.pc.c_box_cull_patch_in, tr.pc.c_box_cull_patch_clip, tr.pc.c_box_cull_patch_out ); + ri.Printf (PRINT_ALL, "(md3) %i sin %i sclip %i sout %i bin %i bclip %i bout\n", + tr.pc.c_sphere_cull_md3_in, tr.pc.c_sphere_cull_md3_clip, tr.pc.c_sphere_cull_md3_out, + tr.pc.c_box_cull_md3_in, tr.pc.c_box_cull_md3_clip, tr.pc.c_box_cull_md3_out ); + } else if (r_speeds->integer == 3) { + ri.Printf (PRINT_ALL, "viewcluster: %i\n", tr.viewCluster ); + } else if (r_speeds->integer == 4) { + if ( backEnd.pc.c_dlightVertexes ) { + ri.Printf (PRINT_ALL, "dlight srf:%i culled:%i verts:%i tris:%i\n", + tr.pc.c_dlightSurfaces, tr.pc.c_dlightSurfacesCulled, + backEnd.pc.c_dlightVertexes, backEnd.pc.c_dlightIndexes / 3 ); + } + } + else if (r_speeds->integer == 5 ) + { + ri.Printf( PRINT_ALL, "zFar: %.0f\n", tr.viewParms.zFar ); + } + else if (r_speeds->integer == 6 ) + { + ri.Printf( PRINT_ALL, "flare adds:%i tests:%i renders:%i\n", + backEnd.pc.c_flareAdds, backEnd.pc.c_flareTests, backEnd.pc.c_flareRenders ); + } + + Com_Memset( &tr.pc, 0, sizeof( tr.pc ) ); + Com_Memset( &backEnd.pc, 0, sizeof( backEnd.pc ) ); +} + + +/* +==================== +R_InitCommandBuffers +==================== +*/ +void R_InitCommandBuffers( void ) { + glConfig.smpActive = qfalse; + if ( r_smp->integer ) { + ri.Printf( PRINT_ALL, "Trying SMP acceleration...\n" ); + if ( GLimp_SpawnRenderThread( RB_RenderThread ) ) { + ri.Printf( PRINT_ALL, "...succeeded.\n" ); + glConfig.smpActive = qtrue; + } else { + ri.Printf( PRINT_ALL, "...failed.\n" ); + } + } +} + +/* +==================== +R_ShutdownCommandBuffers +==================== +*/ +void R_ShutdownCommandBuffers( void ) { + // kill the rendering thread + if ( glConfig.smpActive ) { + GLimp_WakeRenderer( NULL ); + glConfig.smpActive = qfalse; + } +} + +/* +==================== +R_IssueRenderCommands +==================== +*/ +int c_blockedOnRender; +int c_blockedOnMain; + +void R_IssueRenderCommands( qboolean runPerformanceCounters ) { + renderCommandList_t *cmdList; + + cmdList = &backEndData[tr.smpFrame]->commands; + assert(cmdList); // bk001205 + // add an end-of-list command + *(int *)(cmdList->cmds + cmdList->used) = RC_END_OF_LIST; + + // clear it out, in case this is a sync and not a buffer flip + cmdList->used = 0; + + if ( glConfig.smpActive ) { + // if the render thread is not idle, wait for it + if ( renderThreadActive ) { + c_blockedOnRender++; + if ( r_showSmp->integer ) { + ri.Printf( PRINT_ALL, "R" ); + } + } else { + c_blockedOnMain++; + if ( r_showSmp->integer ) { + ri.Printf( PRINT_ALL, "." ); + } + } + + // sleep until the renderer has completed + GLimp_FrontEndSleep(); + } + + // at this point, the back end thread is idle, so it is ok + // to look at it's performance counters + if ( runPerformanceCounters ) { + R_PerformanceCounters(); + } + + // actually start the commands going + if ( !r_skipBackEnd->integer ) { + // let it start on the new batch + if ( !glConfig.smpActive ) { + RB_ExecuteRenderCommands( cmdList->cmds ); + } else { + GLimp_WakeRenderer( cmdList ); + } + } +} + + +/* +==================== +R_SyncRenderThread + +Issue any pending commands and wait for them to complete. +After exiting, the render thread will have completed its work +and will remain idle and the main thread is free to issue +OpenGL calls until R_IssueRenderCommands is called. +==================== +*/ +void R_SyncRenderThread( void ) { + if ( !tr.registered ) { + return; + } + R_IssueRenderCommands( qfalse ); + + if ( !glConfig.smpActive ) { + return; + } + GLimp_FrontEndSleep(); +} + +/* +============ +R_GetCommandBuffer + +make sure there is enough command space, waiting on the +render thread if needed. +============ +*/ +void *R_GetCommandBuffer( int bytes ) { + renderCommandList_t *cmdList; + + cmdList = &backEndData[tr.smpFrame]->commands; + + // always leave room for the end of list command + if ( cmdList->used + bytes + 4 > MAX_RENDER_COMMANDS ) { + if ( bytes > MAX_RENDER_COMMANDS - 4 ) { + ri.Error( ERR_FATAL, "R_GetCommandBuffer: bad size %i", bytes ); + } + // if we run out of room, just start dropping commands + return NULL; + } + + cmdList->used += bytes; + + return cmdList->cmds + cmdList->used - bytes; +} + + +/* +============= +R_AddDrawSurfCmd + +============= +*/ +void R_AddDrawSurfCmd( drawSurf_t *drawSurfs, int numDrawSurfs ) { + drawSurfsCommand_t *cmd; + + cmd = R_GetCommandBuffer( sizeof( *cmd ) ); + if ( !cmd ) { + return; + } + cmd->commandId = RC_DRAW_SURFS; + + cmd->drawSurfs = drawSurfs; + cmd->numDrawSurfs = numDrawSurfs; + + cmd->refdef = tr.refdef; + cmd->viewParms = tr.viewParms; +} + + +/* +============= +RE_SetColor + +Passing NULL will set the color to white +============= +*/ +void RE_SetColor( const float *rgba ) { + setColorCommand_t *cmd; + + if ( !tr.registered ) { + return; + } + cmd = R_GetCommandBuffer( sizeof( *cmd ) ); + if ( !cmd ) { + return; + } + cmd->commandId = RC_SET_COLOR; + if ( !rgba ) { + static float colorWhite[4] = { 1, 1, 1, 1 }; + + rgba = colorWhite; + } + + cmd->color[0] = rgba[0]; + cmd->color[1] = rgba[1]; + cmd->color[2] = rgba[2]; + cmd->color[3] = rgba[3]; +} + + +/* +============= +RE_StretchPic +============= +*/ +void RE_StretchPic ( float x, float y, float w, float h, + float s1, float t1, float s2, float t2, qhandle_t hShader ) { + stretchPicCommand_t *cmd; + + if (!tr.registered) { + return; + } + cmd = R_GetCommandBuffer( sizeof( *cmd ) ); + if ( !cmd ) { + return; + } + cmd->commandId = RC_STRETCH_PIC; + cmd->shader = R_GetShaderByHandle( hShader ); + cmd->x = x; + cmd->y = y; + cmd->w = w; + cmd->h = h; + cmd->s1 = s1; + cmd->t1 = t1; + cmd->s2 = s2; + cmd->t2 = t2; +} + + +/* +==================== +RE_BeginFrame + +If running in stereo, RE_BeginFrame will be called twice +for each RE_EndFrame +==================== +*/ +void RE_BeginFrame( stereoFrame_t stereoFrame ) { + drawBufferCommand_t *cmd; + + if ( !tr.registered ) { + return; + } + glState.finishCalled = qfalse; + + tr.frameCount++; + tr.frameSceneNum = 0; + + // + // do overdraw measurement + // + if ( r_measureOverdraw->integer ) + { + if ( glConfig.stencilBits < 4 ) + { + ri.Printf( PRINT_ALL, "Warning: not enough stencil bits to measure overdraw: %d\n", glConfig.stencilBits ); + ri.Cvar_Set( "r_measureOverdraw", "0" ); + r_measureOverdraw->modified = qfalse; + } + else if ( r_shadows->integer == 2 ) + { + ri.Printf( PRINT_ALL, "Warning: stencil shadows and overdraw measurement are mutually exclusive\n" ); + ri.Cvar_Set( "r_measureOverdraw", "0" ); + r_measureOverdraw->modified = qfalse; + } + else + { + R_SyncRenderThread(); + qglEnable( GL_STENCIL_TEST ); + qglStencilMask( ~0U ); + qglClearStencil( 0U ); + qglStencilFunc( GL_ALWAYS, 0U, ~0U ); + qglStencilOp( GL_KEEP, GL_INCR, GL_INCR ); + } + r_measureOverdraw->modified = qfalse; + } + else + { + // this is only reached if it was on and is now off + if ( r_measureOverdraw->modified ) { + R_SyncRenderThread(); + qglDisable( GL_STENCIL_TEST ); + } + r_measureOverdraw->modified = qfalse; + } + + // + // texturemode stuff + // + if ( r_textureMode->modified ) { + R_SyncRenderThread(); + GL_TextureMode( r_textureMode->string ); + r_textureMode->modified = qfalse; + } + + // + // gamma stuff + // + if ( r_gamma->modified ) { + r_gamma->modified = qfalse; + + R_SyncRenderThread(); + R_SetColorMappings(); + } + + // check for errors + if ( !r_ignoreGLErrors->integer ) { + int err; + + R_SyncRenderThread(); + if ( ( err = qglGetError() ) != GL_NO_ERROR ) { + ri.Error( ERR_FATAL, "RE_BeginFrame() - glGetError() failed (0x%x)!\n", err ); + } + } + + // + // draw buffer stuff + // + cmd = R_GetCommandBuffer( sizeof( *cmd ) ); + if ( !cmd ) { + return; + } + cmd->commandId = RC_DRAW_BUFFER; + + if ( glConfig.stereoEnabled ) { + if ( stereoFrame == STEREO_LEFT ) { + cmd->buffer = (int)GL_BACK_LEFT; + } else if ( stereoFrame == STEREO_RIGHT ) { + cmd->buffer = (int)GL_BACK_RIGHT; + } else { + ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame ); + } + } else { + if ( stereoFrame != STEREO_CENTER ) { + ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is disabled, but stereoFrame was %i", stereoFrame ); + } + if ( !Q_stricmp( r_drawBuffer->string, "GL_FRONT" ) ) { + cmd->buffer = (int)GL_FRONT; + } else { + cmd->buffer = (int)GL_BACK; + } + } +} + + +/* +============= +RE_EndFrame + +Returns the number of msec spent in the back end +============= +*/ +void RE_EndFrame( int *frontEndMsec, int *backEndMsec ) { + swapBuffersCommand_t *cmd; + + if ( !tr.registered ) { + return; + } + cmd = R_GetCommandBuffer( sizeof( *cmd ) ); + if ( !cmd ) { + return; + } + cmd->commandId = RC_SWAP_BUFFERS; + + R_IssueRenderCommands( qtrue ); + + // use the other buffers next frame, because another CPU + // may still be rendering into the current ones + R_ToggleSmpFrame(); + + if ( frontEndMsec ) { + *frontEndMsec = tr.frontEndMsec; + } + tr.frontEndMsec = 0; + if ( backEndMsec ) { + *backEndMsec = backEnd.pc.msec; + } + backEnd.pc.msec = 0; +} + |