texture_cache: Implement Irregular Views in surfaces
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082740d34d
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fed773a86c
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@ -100,6 +100,9 @@ MatchStructureResult SurfaceBaseImpl::MatchesStructure(const SurfaceParams& rhs)
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std::optional<std::pair<u32, u32>> SurfaceBaseImpl::GetLayerMipmap(
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const GPUVAddr candidate_gpu_addr) const {
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if (gpu_addr == candidate_gpu_addr) {
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return {{0,0}};
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}
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if (candidate_gpu_addr < gpu_addr) {
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return {};
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}
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@ -238,6 +238,26 @@ public:
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return GetView(ViewParams(overview_params.target, 0, num_layers, 0, params.num_levels));
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}
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std::optional<TView> EmplaceIrregularView(const SurfaceParams& view_params,
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const GPUVAddr view_addr,
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const std::size_t candidate_size, const u32 mipmap,
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const u32 layer) {
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const auto layer_mipmap{GetLayerMipmap(view_addr + candidate_size)};
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if (!layer_mipmap) {
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return {};
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}
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const u32 end_layer{layer_mipmap->first};
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const u32 end_mipmap{layer_mipmap->second};
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if (layer != end_layer) {
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if (mipmap == 0 && end_mipmap == 0) {
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return GetView(ViewParams(view_params.target, layer, end_layer - layer + 1, 0, 1));
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}
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return {};
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} else {
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return GetView(ViewParams(view_params.target, layer, 1, mipmap, end_mipmap - mipmap + 1));
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}
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}
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std::optional<TView> EmplaceView(const SurfaceParams& view_params, const GPUVAddr view_addr,
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const std::size_t candidate_size) {
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if (params.target == SurfaceTarget::Texture3D ||
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@ -252,10 +272,7 @@ public:
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const u32 layer{layer_mipmap->first};
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const u32 mipmap{layer_mipmap->second};
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if (GetMipmapSize(mipmap) != candidate_size) {
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// TODO: The view may cover many mimaps, this case can still go on.
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// This edge-case can be safely be ignored since it will just result in worse
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// performance.
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return {};
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return EmplaceIrregularView(view_params, view_addr, candidate_size, mipmap, layer);
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}
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return GetView(ViewParams(view_params.target, layer, 1, mipmap, 1));
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}
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