Function UseTextures

trinity/Tr2RenderContext.cpp:33–81

Tr2EnumerableThreadSpecific<Tr2BindlessResourcesAL> s_perThreadUsedTextures;

void UseTextures( ITriRenderBatchAccumulator* batches, const BlueSharedString& techniqueName, Tr2RenderContextAL& renderContext )
{
#if TRINITY_PLATFORM_SUPPORTS_HEAP_VIEW
	CCP_STATS_ZONE( __FUNCTION__ );
	Tr2BindlessResourcesAL usedTextures;

	usedTextures.Add( Tr2Renderer::GetFallbackTexture( Tr2EffectResource::TEXTURE_2D, "" ) );
	usedTextures.Add( Tr2Renderer::GetFallbackTexture( Tr2EffectResource::TEXTURE_3D, "" ) );
	usedTextures.Add( Tr2Renderer::GetFallbackTexture( Tr2EffectResource::TEXTURE_CUBE, "" ) );

	auto ProcessBatch = [&techniqueName]( auto& batch, Tr2BindlessResourcesAL& resources ) {
		uint32_t technique;
		if( batch.m_shader->GetTechniqueIndex( techniqueName, technique ) )
		{
			batch.m_material->GetUsedBindlessTextures( technique, resources );
		}
	};
	auto ProcessBatches = [&ProcessBatch, &usedTextures]( auto& batches ) {
		const size_t partitionSize = 500;
		if( batches.size() > partitionSize )
		{
			Tr2ParallelFor( Tr2BlockedRange<size_t>( 0, batches.size(), partitionSize ), [&]( Tr2BlockedRange<size_t> range ) {
				for( auto i = range.begin(); i != range.end(); ++i )
				{
					ProcessBatch( batches[i], s_perThreadUsedTextures.local() );
				}
			} );
			for( auto& threadResources : s_perThreadUsedTextures )
			{
				usedTextures.Add( threadResources );
				threadResources.Clear();
			}
		}
		else
		{
			for( auto& batch : batches )
			{
				ProcessBatch( batch, usedTextures );
			}
		}
	};
	ProcessBatches( batches->GetGdprBatches() );
	ProcessBatches( batches->GetBatches() );
	{
		CCP_STATS_ZONE( "renderContext.UseResources" );
		renderContext.UseResources( Tr2UseResourceDestination::RENDER, Tr2GpuUsage::SHADER_RESOURCE, usedTextures );
	}
#endif
}

void SubmitGeometry( const Tr2RenderBatch& batch, Tr2RenderContext& renderContext )
{