Method update_texture_bindings

source/runtime_api.cpp:670–749

}

void reshade::runtime::update_texture_bindings(const char *semantic, api::resource_view srv, api::resource_view srv_srgb)
{
	if (srv_srgb == 0)
		srv_srgb = srv;

	if (srv != 0)
	{
		_texture_semantic_bindings[semantic] = { srv, srv_srgb };
	}
	else
	{
		_texture_semantic_bindings.erase(semantic);

		// Overwrite with empty texture, since it is not valid to bind a zero handle
		srv = srv_srgb = _empty_srv;
	}

	// Update texture bindings
	size_t num_bindings = 0;
	for (const effect &effect_data : _effects)
	{
		if (!effect_data.compiled)
			continue;

		num_bindings += effect_data.permutations[0].texture_semantic_to_binding.size();
	}

	num_bindings *= _effect_permutations.size();

	std::vector<api::descriptor_table_update> descriptor_writes;
	descriptor_writes.reserve(num_bindings);
	std::vector<api::sampler_with_resource_view> sampler_descriptors(num_bindings);

	for (const effect &effect_data : _effects)
	{
		if (!effect_data.compiled)
			continue;

		for (size_t permutation_index = 0; permutation_index < _effect_permutations.size(); ++permutation_index)
		{
			if (permutation_index >= effect_data.permutations.size())
				break;

			for (const effect::binding &binding : effect_data.permutations[permutation_index].texture_semantic_to_binding)
			{
				if (binding.semantic != semantic)
					continue;

				api::descriptor_table_update &write = descriptor_writes.emplace_back();
				write.table = binding.table;
				write.binding = binding.index;
				write.count = 1;

				if (binding.sampler != 0)
				{
					write.type = api::descriptor_type::sampler_with_resource_view;
					write.descriptors = &sampler_descriptors[--num_bindings];