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Removing redundant stagging per downloaded and swizzled image

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This commit is contained in:
CamilleLaVey
2026-08-28 23:16:49 -04:00
parent 024f7d4918
commit 68e1048194
1 changed files with 17 additions and 6 deletions
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src/video_core/texture_cache/texture_cache.h
+17 -6
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@@ -627,14 +627,25 @@ void TextureCache<P>::DownloadMemory(DAddr cpu_addr, size_t size) {
std::ranges::sort(images, [this](ImageId lhs, ImageId rhs) {
return slot_images[lhs].modification_tick < slot_images[rhs].modification_tick;
});
size_t total_size_bytes = 0;
for (const ImageId image_id : images) {
total_size_bytes += slot_images[image_id].unswizzled_size_bytes;
}
auto download_map = runtime.DownloadStagingBuffer(total_size_bytes);
for (const ImageId image_id : images) {
Image& image = slot_images[image_id];
auto map = runtime.DownloadStagingBuffer(image.unswizzled_size_bytes);
const auto copies = FixSmallVectorADL(FullDownloadCopies(image.info));
image.DownloadMemory(map, copies);
runtime.Finish();
SwizzleImage(*gpu_memory, image.gpu_addr, image.info, copies, map.mapped_span,
image.DownloadMemory(download_map, copies);
download_map.offset += image.unswizzled_size_bytes;
}
runtime.Finish();
std::span<u8> download_span = download_map.mapped_span;
for (const ImageId image_id : images) {
const ImageBase& image = slot_images[image_id];
const auto copies = FixSmallVectorADL(FullDownloadCopies(image.info));
SwizzleImage(*gpu_memory, image.gpu_addr, image.info, copies, download_span,
swizzle_data_buffer);
download_span = download_span.subspan(image.unswizzled_size_bytes);
}
}
@@ -1361,12 +1372,12 @@ void TextureCache<P>::QueueAsyncDecode(Image& image, ImageId image_id) {
decode->image_id = image_id;
async_decodes.push_back(std::move(decode));
std::vector<u8> local_unswizzle_data_buffer(image.unswizzled_size_bytes, 0);
Common::ScratchBuffer<u8> local_unswizzle_data_buffer(image.unswizzled_size_bytes);
Tegra::Memory::GpuGuestMemory<u8, Tegra::Memory::GuestMemoryFlags::UnsafeRead> swizzle_data(*gpu_memory, image.gpu_addr, image.guest_size_bytes, &swizzle_data_buffer);
auto copies = UnswizzleImage(*gpu_memory, image.gpu_addr, image.info, swizzle_data, local_unswizzle_data_buffer);
const size_t out_size = MapSizeBytes(image);
auto func = [out_size, copies, info = image.info,
auto func = [out_size, copies = std::move(copies), info = image.info,
input = std::move(local_unswizzle_data_buffer),
async_decode = decode_ptr]() mutable {
async_decode->decoded_data.resize_destructive(out_size);