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texture_cache: Implement Buffer Copy and detect Turing GPUs Image Copies

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This commit is contained in:
Fernando Sahmkow 2019-06-01 19:12:00 -04:00 • committed by ReinUsesLisp
parent 228f516bb4
commit 60bf761afb
8 changed files with 148 additions and 12 deletions
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40
src/video_core/texture_cache/texture_cache.h
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@ -214,6 +214,13 @@ public:
}
protected:
// This structure is used for communicating with the backend, on which behaviors
// it supports and what not, to avoid assuming certain things about hardware.
// The backend is RESPONSIBLE for filling this settings on creation.
struct Support {
bool depth_color_image_copies;
} support_info;
TextureCache(Core::System& system, VideoCore::RasterizerInterface& rasterizer)
: system{system}, rasterizer{rasterizer} {
for (std::size_t i = 0; i < Tegra::Engines::Maxwell3D::Regs::NumRenderTargets; i++) {
@ -233,6 +240,10 @@ protected:
virtual void ImageBlit(TView src_view, TView dst_view,
const Tegra::Engines::Fermi2D::Config& copy_config) = 0;
// Depending on the backend, a buffer copy can be slow as it means deoptimizing the texture
// and reading it from a sepparate buffer.
virtual void BufferCopy(TSurface src_surface, TSurface dst_surface) = 0;
void Register(TSurface surface) {
std::lock_guard lock{mutex};
@ -377,9 +388,14 @@ private:
const SurfaceParams& params) {
const auto gpu_addr = current_surface->GetGpuAddr();
TSurface new_surface = GetUncachedSurface(gpu_addr, params);
std::vector<CopyParams> bricks = current_surface->BreakDown(params);
for (auto& brick : bricks) {
ImageCopy(current_surface, new_surface, brick);
const auto& cr_params = current_surface->GetSurfaceParams();
if (!support_info.depth_color_image_copies && cr_params.type != params.type) {
BufferCopy(current_surface, new_surface);
} else {
std::vector<CopyParams> bricks = current_surface->BreakDown(params);
for (auto& brick : bricks) {
ImageCopy(current_surface, new_surface, brick);
}
}
Unregister(current_surface);
Register(new_surface);
@ -505,7 +521,8 @@ private:
auto topological_result = current_surface->MatchesTopology(params);
if (topological_result != MatchTopologyResult::FullMatch) {
std::vector<TSurface> overlaps{current_surface};
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents, topological_result);
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents,
topological_result);
}
MatchStructureResult s_result = current_surface->MatchesStructure(params);
if (s_result != MatchStructureResult::None &&
@ -537,7 +554,8 @@ private:
for (auto surface : overlaps) {
auto topological_result = surface->MatchesTopology(params);
if (topological_result != MatchTopologyResult::FullMatch) {
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents, topological_result);
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents,
topological_result);
}
}
@ -555,7 +573,8 @@ private:
return *view;
}
}
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents, MatchTopologyResult::FullMatch);
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents,
MatchTopologyResult::FullMatch);
}
// Now we check if the candidate is a mipmap/layer of the overlap
std::optional<TView> view =
@ -578,13 +597,15 @@ private:
pair.first->EmplaceView(params, gpu_addr, candidate_size);
if (mirage_view)
return {pair.first, *mirage_view};
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents, MatchTopologyResult::FullMatch);
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents,
MatchTopologyResult::FullMatch);
}
return {current_surface, *view};
}
// The next case is unsafe, so if we r in accurate GPU, just skip it
if (Settings::values.use_accurate_gpu_emulation) {
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents, MatchTopologyResult::FullMatch);
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents,
MatchTopologyResult::FullMatch);
}
// This is the case the texture is a part of the parent.
if (current_surface->MatchesSubTexture(params, gpu_addr)) {
@ -601,7 +622,8 @@ private:
}
}
// We failed all the tests, recycle the overlaps into a new texture.
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents, MatchTopologyResult::FullMatch);
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents,
MatchTopologyResult::FullMatch);
}
std::pair<TSurface, TView> InitializeSurface(GPUVAddr gpu_addr, const SurfaceParams& params,