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texture_cache: fix exact-match reuse across different tile modes

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This commit is contained in:
nmzik
2026-07-29 23:12:06 +02:00
parent c508c4a9c0
commit 3965d41d36
2 changed files with 81 additions and 16 deletions
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tests/ShaderRecompilerComputeTests.cpp
+46
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@@ -4772,6 +4772,52 @@ public:
"successive near-capacity image transfers replaced the shared "
"download buffer");
constexpr uint64_t tile_alias_offset = 0x2000000;
constexpr uint64_t tile_alias_size = 0x400000;
constexpr uint32_t tile_alias_extent = 1024;
std::memset(memory + tile_alias_offset, 0,
static_cast<size_t>(tile_alias_size));
auto render_target_alias = MakeLinearDesc(
base + tile_alias_offset, tile_alias_size,
vk::Format::eR8G8B8A8Unorm,
Prospero::GpuEnumValue(Prospero::BufferFormat::k8_8_8_8UNorm),
Prospero::ImageType::kColor2D,
{tile_alias_extent, tile_alias_extent, 1}, 1, 4, 1);
render_target_alias.type = BindingType::Storage;
render_target_alias.info.tile_mode =
Prospero::GpuEnumValue(Prospero::TileMode::kRenderTarget);
render_target_alias.view_info.usage =
vk::ImageUsageFlagBits::eStorage;
const auto render_target_alias_image =
texture_cache.FindImage(render_target_alias);
auto standard_4kb_alias = render_target_alias;
standard_4kb_alias.type = BindingType::Texture;
standard_4kb_alias.info.tile_mode =
Prospero::GpuEnumValue(Prospero::TileMode::kStandard4KB);
standard_4kb_alias.view_info.usage =
vk::ImageUsageFlagBits::eSampled;
const auto standard_4kb_alias_image =
texture_cache.FindImage(standard_4kb_alias);
auto repeated_standard_4kb_alias = standard_4kb_alias;
const auto repeated_standard_4kb_alias_image =
texture_cache.FindImage(repeated_standard_4kb_alias);
Require(
name, "equal-size tile-mode alias",
render_target_alias_image && standard_4kb_alias_image &&
standard_4kb_alias_image != render_target_alias_image &&
repeated_standard_4kb_alias_image ==
standard_4kb_alias_image &&
texture_cache.GetImage(render_target_alias_image)
.info.tile_mode ==
Prospero::GpuEnumValue(
Prospero::TileMode::kRenderTarget) &&
texture_cache.GetImage(standard_4kb_alias_image)
.info.tile_mode ==
Prospero::GpuEnumValue(
Prospero::TileMode::kStandard4KB),
"equal address/size lookup reused an incompatible tiled backing");
for (auto &output : ms_observer_outputs) {
DestroyBuffer(&output);
}