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texture_cache: Implement Irregular Views in surfaces

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This commit is contained in:
Fernando Sahmkow 2019-06-14 18:40:06 -04:00 committed by ReinUsesLisp
parent 082740d34d
commit fed773a86c
2 changed files with 24 additions and 4 deletions
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3
src/video_core/texture_cache/surface_base.cpp
View file

@ -100,6 +100,9 @@ MatchStructureResult SurfaceBaseImpl::MatchesStructure(const SurfaceParams& rhs)
std::optional<std::pair<u32, u32>> SurfaceBaseImpl::GetLayerMipmap(
const GPUVAddr candidate_gpu_addr) const {
if (gpu_addr == candidate_gpu_addr) {
return {{0,0}};
}
if (candidate_gpu_addr < gpu_addr) {
return {};
}

25
src/video_core/texture_cache/surface_base.h
View file

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