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TextureCache: Add the ability to deduce if two textures are depth on blit.
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parent
d633397883
commit
2036504a82
1 changed files with 142 additions and 2 deletions
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@ -224,8 +224,13 @@ public:
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const Tegra::Engines::Fermi2D::Regs::Surface& dst_config,
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const Tegra::Engines::Fermi2D::Config& copy_config) {
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std::lock_guard lock{mutex};
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std::pair<TSurface, TView> dst_surface = GetFermiSurface(dst_config);
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std::pair<TSurface, TView> src_surface = GetFermiSurface(src_config);
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SurfaceParams src_params = SurfaceParams::CreateForFermiCopySurface(src_config);
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SurfaceParams dst_params = SurfaceParams::CreateForFermiCopySurface(dst_config);
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const GPUVAddr src_gpu_addr = src_config.Address();
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const GPUVAddr dst_gpu_addr = dst_config.Address();
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DeduceBestBlit(src_params, dst_params, src_gpu_addr, dst_gpu_addr);
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std::pair<TSurface, TView> dst_surface = GetSurface(dst_gpu_addr, dst_params, true, false);
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std::pair<TSurface, TView> src_surface = GetSurface(src_gpu_addr, src_params, true, false);
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ImageBlit(src_surface.second, dst_surface.second, copy_config);
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dst_surface.first->MarkAsModified(true, Tick());
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}
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@ -357,6 +362,29 @@ private:
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BufferCopy = 3,
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};
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enum class DeductionType : u32 {
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DeductionComplete,
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DeductionIncomplete,
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DeductionFailed,
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};
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struct Deduction {
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DeductionType type{DeductionType::DeductionFailed};
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TSurface surface{};
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bool Failed() const {
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return type == DeductionType::DeductionFailed;
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}
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bool Incomplete() const {
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return type == DeductionType::DeductionIncomplete;
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}
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bool IsDepth() const {
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return surface->GetSurfaceParams().IsPixelFormatZeta();
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}
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};
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/**
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* `PickStrategy` takes care of selecting a proper strategy to deal with a texture recycle.
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* @param overlaps, the overlapping surfaces registered in the cache.
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@ -691,6 +719,118 @@ private:
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MatchTopologyResult::FullMatch);
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}
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/**
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* `DeduceSurface` gets the starting address and parameters of a candidate surface and tries
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* to find a matching surface within the cache that's similar to it. If there are many textures
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* or the texture found if entirely incompatible, it will fail. If no texture is found, the
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* blit will be unsuccessful.
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* @param gpu_addr, the starting address of the candidate surface.
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* @param params, the paremeters on the candidate surface.
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**/
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Deduction DeduceSurface(const GPUVAddr gpu_addr, const SurfaceParams& params) {
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const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
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const auto cache_addr{ToCacheAddr(host_ptr)};
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if (!cache_addr) {
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Deduction result{};
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result.type = DeductionType::DeductionFailed;
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return result;
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}
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if (const auto iter = l1_cache.find(cache_addr); iter != l1_cache.end()) {
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TSurface& current_surface = iter->second;
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const auto topological_result = current_surface->MatchesTopology(params);
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if (topological_result != MatchTopologyResult::FullMatch) {
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Deduction result{};
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result.type = DeductionType::DeductionFailed;
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return result;
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}
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const auto struct_result = current_surface->MatchesStructure(params);
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if (struct_result != MatchStructureResult::None &&
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current_surface->MatchTarget(params.target)) {
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Deduction result{};
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result.type = DeductionType::DeductionComplete;
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result.surface = current_surface;
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return result;
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}
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}
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const std::size_t candidate_size = params.GetGuestSizeInBytes();
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auto overlaps{GetSurfacesInRegion(cache_addr, candidate_size)};
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if (overlaps.empty()) {
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Deduction result{};
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result.type = DeductionType::DeductionIncomplete;
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return result;
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}
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if (overlaps.size() > 1) {
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Deduction result{};
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result.type = DeductionType::DeductionFailed;
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return result;
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} else {
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Deduction result{};
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result.type = DeductionType::DeductionComplete;
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result.surface = overlaps[0];
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return result;
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}
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}
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/**
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* `DeduceBestBlit` gets the a source and destination starting address and parameters,
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* and tries to deduce if they are supposed to be depth textures. If so, their
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* parameters are modified and fixed into so.
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* @param gpu_addr, the starting address of the candidate surface.
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* @param params, the parameters on the candidate surface.
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**/
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void DeduceBestBlit(SurfaceParams& src_params, SurfaceParams& dst_params,
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const GPUVAddr src_gpu_addr, const GPUVAddr dst_gpu_addr) {
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auto deduc_src = DeduceSurface(src_gpu_addr, src_params);
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auto deduc_dst = DeduceSurface(src_gpu_addr, src_params);
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if (deduc_src.Failed() || deduc_dst.Failed()) {
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return;
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}
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const bool incomplete_src = deduc_src.Incomplete();
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const bool incomplete_dst = deduc_dst.Incomplete();
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if (incomplete_src && incomplete_dst) {
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return;
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}
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const bool any_incomplete = incomplete_src || incomplete_dst;
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if (!any_incomplete && !(deduc_src.IsDepth() && deduc_dst.IsDepth())) {
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return;
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}
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if (incomplete_src && !(deduc_dst.IsDepth())) {
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return;
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}
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if (incomplete_dst && !(deduc_src.IsDepth())) {
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return;
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}
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const auto inherit_format = ([](SurfaceParams& to, TSurface from) {
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const SurfaceParams& params = from->GetSurfaceParams();
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to.pixel_format = params.pixel_format;
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to.component_type = params.component_type;
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to.type = params.type;
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});
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// Now we got the cases where one or both is Depth and the other is not known
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if (!incomplete_src) {
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inherit_format(src_params, deduc_src.surface);
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} else {
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inherit_format(src_params, deduc_dst.surface);
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}
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if (!incomplete_dst) {
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inherit_format(dst_params, deduc_dst.surface);
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} else {
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inherit_format(dst_params, deduc_src.surface);
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}
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}
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std::pair<TSurface, TView> InitializeSurface(GPUVAddr gpu_addr, const SurfaceParams& params,
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bool preserve_contents) {
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auto new_surface{GetUncachedSurface(gpu_addr, params)};
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