diff options
Diffstat (limited to 'src/renderer/tr_cmds.c')
| -rw-r--r-- | src/renderer/tr_cmds.c | 475 |
1 files changed, 475 insertions, 0 deletions
diff --git a/src/renderer/tr_cmds.c b/src/renderer/tr_cmds.c new file mode 100644 index 0000000..d637aec --- /dev/null +++ b/src/renderer/tr_cmds.c @@ -0,0 +1,475 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. +Copyright (C) 2000-2006 Tim Angus + +This file is part of Tremulous. + +Tremulous 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. + +Tremulous 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 Tremulous; 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; +} + +/* +============= +RE_TakeVideoFrame +============= +*/ +void RE_TakeVideoFrame( int width, int height, + byte *captureBuffer, byte *encodeBuffer, qboolean motionJpeg ) +{ + videoFrameCommand_t *cmd; + + if( !tr.registered ) { + return; + } + + cmd = R_GetCommandBuffer( sizeof( *cmd ) ); + if( !cmd ) { + return; + } + + cmd->commandId = RC_VIDEOFRAME; + + cmd->width = width; + cmd->height = height; + cmd->captureBuffer = captureBuffer; + cmd->encodeBuffer = encodeBuffer; + cmd->motionJpeg = motionJpeg; +} |