Method RunComputeShaderIndirect

trinity/Tr2Renderer.cpp:942–971

-------------------------------------------------------------------------------------- Description: Execute compute shaders in all passes of the specified effect. Group drid dimensions are taken from indirectParams GPU buffer. The function will unset bound UAVs after each pass. Arguments: effect - Effect containing compute shaders indirectParams - GPU buffer containing group dimensions offset - by

//   false On failure
// --------------------------------------------------------------------------------------
bool Tr2Renderer::RunComputeShaderIndirect( Tr2Material* effect, Tr2BufferAL& indirectParams, unsigned offset, Tr2RenderContext& renderContext )
{
	if( !effect )
	{
		return false;
	}
	auto shader = effect->GetShaderStateInterface();
	if( !shader )
	{
		return false;
	}

	auto& desc = shader->GetEffectDescription();
	if( desc.techniques.empty() )
	{
		return false;
	}
	auto& technique = desc.techniques[0];
	for( size_t i = 0; i < technique.passes.size(); ++i )
	{
		auto& stage = technique.passes[i].stageInputs[COMPUTE_SHADER];
		if( stage.m_exists )
		{
			shader->ApplyAllStateForPass( 0, uint32_t( i ), renderContext );
			effect->ApplyMaterialDataForPass( 0, uint32_t( i ), renderContext );
			CR_RETURN_VAL( renderContext.RunComputeShaderIndirect( indirectParams, offset ), false );
		}
	}
	return true;
}

void Tr2Renderer::PushProjection()
{