/*
====================
RenderCommandBuffers
====================
*/
void idRenderSystemLocal::RenderCommandBuffers( const emptyCommand_t* const cmdHead )
{
// if there isn't a draw view command, do nothing to avoid swapping a bad frame
bool hasView = false;
for( const emptyCommand_t* cmd = cmdHead ; cmd ; cmd = ( const emptyCommand_t* )cmd->next )
{
if( cmd->commandId == RC_DRAW_VIEW_3D || cmd->commandId == RC_DRAW_VIEW_GUI )
{
hasView = true;
break;
}
}
if( !hasView )
{
return;
}
// r_skipBackEnd allows the entire time of the back end
// to be removed from performance measurements, although
// nothing will be drawn to the screen. If the prints
// are going to a file, or r_skipBackEnd is later disabled,
// usefull data can be received.
// r_skipRender is usually more usefull, because it will still
// draw 2D graphics
if( !r_skipBackEnd.GetBool() )
{
if( glConfig.timerQueryAvailable )
{
if( tr.timerQueryId == 0 )
{
qglGenQueriesARB( 1, & tr.timerQueryId );
}
qglBeginQueryARB( GL_TIME_ELAPSED_EXT, tr.timerQueryId );
RB_ExecuteBackEndCommands( cmdHead );
qglEndQueryARB( GL_TIME_ELAPSED_EXT );
qglFlush();
}
else
{
RB_ExecuteBackEndCommands( cmdHead );
}
}
// pass in null for now - we may need to do some map specific hackery in the future
resolutionScale.InitForMap( NULL );
}
/*
====================
R_IssueRenderCommands
Called by R_EndFrame each frame
====================
*/
static void R_IssueRenderCommands( void ) {
if ( frameData->cmdHead->commandId == RC_NOP
&& !frameData->cmdHead->next ) {
// nothing to issue
return;
}
// r_skipBackEnd allows the entire time of the back end
// to be removed from performance measurements, although
// nothing will be drawn to the screen. If the prints
// are going to a file, or r_skipBackEnd is later disabled,
// usefull data can be received.
// r_skipRender is usually more usefull, because it will still
// draw 2D graphics
if ( !r_skipBackEnd.GetBool() ) {
RB_ExecuteBackEndCommands( frameData->cmdHead );
}
R_ClearCommandChain();
}