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[Vulkan] Implement tiled_shared_memory for resolution scaling

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Adds support for >3x resolution scaling to vulkan by implementing
sparse scaled resolve similar to the d3d12 implementation.
This commit is contained in:
Herman S.
2025-12-22 11:58:13 +09:00
parent a092551735
commit 5897de3eaf
10 changed files with 508 additions and 77 deletions
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34
src/xenia/gpu/d3d12/d3d12_texture_cache.cc
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@@ -846,40 +846,6 @@ void D3D12TextureCache::WriteSampler(SamplerParameters parameters,
device->CreateSampler(&desc, handle);
}
bool D3D12TextureCache::ClampDrawResolutionScaleToMaxSupported(
uint32_t& scale_x, uint32_t& scale_y,
const ui::d3d12::D3D12Provider& provider) {
bool was_clamped;
if (provider.GetTiledResourcesTier() < D3D12_TILED_RESOURCES_TIER_1) {
was_clamped = scale_x > 1 || scale_y > 1;
scale_x = 1;
scale_y = 1;
return !was_clamped;
}
// Limit to the virtual address space available for a resource.
was_clamped = false;
uint32_t virtual_address_bits_per_resource =
provider.GetVirtualAddressBitsPerResource();
while (scale_x > 1 || scale_y > 1) {
uint64_t highest_scaled_address =
uint64_t(SharedMemory::kBufferSize) * (scale_x * scale_y) - 1;
if (uint32_t(64) - xe::lzcnt(highest_scaled_address) <=
virtual_address_bits_per_resource) {
break;
}
// When reducing from a square size, prefer decreasing the horizontal
// resolution as vertical resolution difference is visible more clearly in
// perspective.
was_clamped = true;
if (scale_x >= scale_y) {
--scale_x;
} else {
--scale_y;
}
}
return !was_clamped;
}
bool D3D12TextureCache::EnsureScaledResolveMemoryCommitted(
uint32_t start_unscaled, uint32_t length_unscaled,
uint32_t length_scaled_alignment_log2) {