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texture_cache: copy depth sampled through non-depth color formats

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nmzik committed 2026-10-30 10:12:37 +01:00
1 parent 346e9a3c69
commit 0543c3d228
2 files changed
+68 -12
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tests/ShaderRecompilerComputeTests.cpp
+59
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@@ -7025,6 +7025,65 @@ public:
nullptr,
"D16 uint sampling did not create an integer sampled view");
auto raw_d16_rg8_depth = raw_d16;
raw_d16_rg8_depth.info.data.address += 0x800;
const auto raw_d16_rg8_depth_image =
texture_cache.FindImage(raw_d16_rg8_depth);
(void)texture_cache.FindDepthTarget(raw_d16_rg8_depth_image,
raw_d16_rg8_depth);
auto &raw_d16_rg8_depth_native =
texture_cache.GetImage(raw_d16_rg8_depth_image);
raw_d16_rg8_depth_native.Transit(vk::ImageLayout::eTransferDstOptimal,
vk::AccessFlagBits2::eTransferWrite, {},
scheduler.Current().Handle());
const vk::ClearDepthStencilValue raw_d16_rg8_clear{16384.0f / 65535.0f,
0};
const vk::ImageSubresourceRange raw_d16_rg8_clear_range{
vk::ImageAspectFlagBits::eDepth, 0, 1, 0, 1};
scheduler.Current().Handle().clearDepthStencilImage(
raw_d16_rg8_depth_native.backing.image,
vk::ImageLayout::eTransferDstOptimal, &raw_d16_rg8_clear, 1,
&raw_d16_rg8_clear_range);
texture_cache.MarkGpuWritten(raw_d16_rg8_depth_image);
auto raw_d16_rg8 = raw_d16_uint;
raw_d16_rg8.info.data = raw_d16_rg8_depth.info.data;
raw_d16_rg8.info.pixel_format = vk::Format::eR8G8Unorm;
raw_d16_rg8.info.guest_format = Prospero::BufferFormat::k8_8UNorm;
raw_d16_rg8.view_info.format = vk::Format::eR8G8Unorm;
const auto raw_d16_rg8_image = texture_cache.FindImage(raw_d16_rg8);
Require(
name, "raw D16 8_8 texture backing",
raw_d16_rg8_image && raw_d16_rg8_image != raw_d16_rg8_depth_image &&
!TextureCacheTestAccess::Contains(texture_cache,
raw_d16_rg8_depth_image) &&
texture_cache.GetImage(raw_d16_rg8_image).backing.format ==
vk::Format::eR8G8Unorm &&
texture_cache.FindTexture(raw_d16_rg8_image, raw_d16_rg8) !=
nullptr,
"D16 sampled as 8_8 UNORM did not recreate a color backing");
auto raw_d16_rg8_readback =
CreateHostBuffer(name, sizeof(raw_d16_values),
vk::BufferUsageFlagBits::eTransferDst, {0u});
auto &raw_d16_rg8_native = texture_cache.GetImage(raw_d16_rg8_image);
raw_d16_rg8_native.Transit(vk::ImageLayout::eTransferSrcOptimal,
vk::AccessFlagBits2::eTransferRead, {},
scheduler.Current().Handle());
vk::BufferImageCopy raw_d16_rg8_copy{};
raw_d16_rg8_copy.imageSubresource = {vk::ImageAspectFlagBits::eColor, 0,
0, 1};
raw_d16_rg8_copy.imageExtent = {2, 1, 1};
scheduler.Current().Handle().copyImageToBuffer(
raw_d16_rg8_native.backing.image,
vk::ImageLayout::eTransferSrcOptimal, raw_d16_rg8_readback.buffer, 1,
&raw_d16_rg8_copy);
HostReadBarrier(raw_d16_rg8_readback.buffer, raw_d16_rg8_readback.size,
vk::PipelineStageFlagBits::eTransfer,
vk::AccessFlagBits::eTransferWrite);
scheduler.Finish();
Require(name, "raw D16 8_8 texture bytes",
ReadBuffer(name, raw_d16_rg8_readback, 1)[0] == 0x40004000u,
"D16 sampled as 8_8 UNORM lost the depth bytes");
constexpr uint64_t layered_raw_d16_offset = raw_d16_offset + 0x1000;
constexpr std::array<uint16_t, 12> layered_raw_d16_values{
0x0102u, 0x0304u, 0x1112u, 0x1314u, 0x2122u, 0x2324u,