debuggerx/eden
1
0
Fork 0
mirror of https://git.eden-emu.dev/eden-emu/eden.git synced 2026-08-23 16:06:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

[buffer_cache] Add option to control GPU buffer readback (#4126)

Browse Source 
Added an option to control the GPU buffer readback, as it causes issues if the hardware cannot keep up with the additional workload.

Some games require this to render certain effects properly.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4126
This commit is contained in:
MaranBr
2026-06-27 08:38:04 +02:00
committed by crueter
parent 0d6a2158f0
commit b4b41ee62c
3 changed files with 19 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/video_core/buffer_cache/buffer_cache.h
+10 -8
View File
@@ -1634,15 +1634,17 @@ bool BufferCache<P>::SynchronizeBuffer(Buffer& buffer, DAddr device_addr, u32 si
if (total_size_bytes == 0) {
return true;
}
u64 min_offset = (std::numeric_limits<u64>::max)();
u64 max_offset = 0;
for (const auto& copy : upload_copies) {
min_offset = (std::min)(min_offset, copy.dst_offset);
max_offset = (std::max)(max_offset, copy.dst_offset + copy.size);
if (Settings::values.enable_gpu_buffer_readback.GetValue()) {
u64 min_offset = (std::numeric_limits<u64>::max)();
u64 max_offset = 0;
for (const auto& copy : upload_copies) {
min_offset = (std::min)(min_offset, copy.dst_offset);
max_offset = (std::max)(max_offset, copy.dst_offset + copy.size);
}
const DAddr sync_addr = buffer.CpuAddr() + min_offset;
const u64 sync_size = max_offset - min_offset;
DownloadBufferMemory(buffer, sync_addr, sync_size);
}
const DAddr sync_addr = buffer.CpuAddr() + min_offset;
const u64 sync_size = max_offset - min_offset;
DownloadBufferMemory(buffer, sync_addr, sync_size);
const std::span<BufferCopy> copies_span(upload_copies.data(), upload_copies.size());
UploadMemory(buffer, total_size_bytes, largest_copy, copies_span);
any_buffer_uploaded = true;