/*
=====================
idRenderSystemLocal::SwapCommandBuffers_FinishRendering
=====================
*/
void idRenderSystemLocal::SwapCommandBuffers_FinishRendering(
uint64 * frontEndMicroSec,
uint64 * backEndMicroSec,
uint64 * shadowMicroSec,
uint64 * gpuMicroSec ) {
SCOPED_PROFILE_EVENT( "SwapCommandBuffers" );
if ( gpuMicroSec != NULL ) {
*gpuMicroSec = 0; // until shown otherwise
}
if ( !R_IsInitialized() ) {
return;
}
// After coming back from an autoswap, we won't have anything to render
if ( frameData->cmdHead->next != NULL ) {
// wait for our fence to hit, which means the swap has actually happened
// We must do this before clearing any resources the GPU may be using
void GL_BlockingSwapBuffers();
GL_BlockingSwapBuffers();
}
// read back the start and end timer queries from the previous frame
if ( glConfig.timerQueryAvailable ) {
uint64 drawingTimeNanoseconds = 0;
if ( tr.timerQueryId != 0 ) {
qglGetQueryObjectui64vEXT( tr.timerQueryId, GL_QUERY_RESULT, &drawingTimeNanoseconds );
}
if ( gpuMicroSec != NULL ) {
*gpuMicroSec = drawingTimeNanoseconds / 1000;
}
}
//------------------------------
// save out timing information
if ( frontEndMicroSec != NULL ) {
*frontEndMicroSec = pc.frontEndMicroSec;
}
if ( backEndMicroSec != NULL ) {
*backEndMicroSec = backEnd.pc.totalMicroSec;
}
if ( shadowMicroSec != NULL ) {
*shadowMicroSec = backEnd.pc.shadowMicroSec;
}
// print any other statistics and clear all of them
R_PerformanceCounters();
// check for dynamic changes that require some initialization
R_CheckCvars();
// check for errors
GL_CheckErrors();
}
/*
=============
EndFrame
Returns the number of msec spent in the back end
=============
*/
void idRenderSystemLocal::EndFrame( int *frontEndMsec, int *backEndMsec, bool swapFrontBack ) {
emptyCommand_t *cmd;
if ( !glConfig.isInitialized ) {
return;
}
// close any gui drawing
guiModel->EmitFullScreen();
guiModel->Clear();
// save out timing information
if ( frontEndMsec ) {
*frontEndMsec = pc.frontEndMsec;
}
if ( backEndMsec ) {
*backEndMsec = backEnd.pc.msec;
}
// print any other statistics and clear all of them
R_PerformanceCounters();
// check for dynamic changes that require some initialization
R_CheckCvars();
// check for errors
GL_CheckErrors();
// add the swapbuffers command
if(swapFrontBack)
{
cmd = (emptyCommand_t *)R_GetCommandBuffer( sizeof( *cmd ) );
cmd->commandId = RC_SWAP_BUFFERS;
}
// start the back end up again with the new command list
R_IssueRenderCommands();
// use the other buffers next frame, because another CPU
// may still be rendering into the current buffers
R_ToggleSmpFrame();
// we can now release the vertexes used this frame
vertexCache.EndFrame();
if ( session->writeDemo ) {
session->writeDemo->WriteInt( DS_RENDER );
session->writeDemo->WriteInt( DC_END_FRAME );
if ( r_showDemo.GetBool() ) {
common->Printf( "write DC_END_FRAME\n" );
}
}
}
