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[video_core] Improve StagingBufferPool stream allocation (#4101)

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This fixes (I really hope so) the random graphical corruption issue that can occur in Mario Kart 8 Deluxe and possibly other games as well.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4101
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
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MaranBr 2026-06-22 17:04:52 +02:00 • committed by crueter
parent 7b97ec4594
commit c22f57bc4e
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GPG key ID: 425ACD2D4830EBC6
1 changed files with 3 additions and 3 deletions
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6
src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp
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@ -28,7 +28,7 @@ using namespace Common::Literals;
// Maximum potential alignment of a Vulkan buffer
constexpr VkDeviceSize MAX_ALIGNMENT = 256;
// Stream buffer size in bytes
constexpr VkDeviceSize MAX_STREAM_BUFFER_SIZE = 128_MiB;
constexpr VkDeviceSize MAX_STREAM_BUFFER_SIZE = 256_MiB;
size_t GetStreamBufferSize(const Device& device) {
if (!device.HasDebuggingToolAttached()) {
@ -46,13 +46,13 @@ size_t GetStreamBufferSize(const Device& device) {
// If rebar is not supported, cut the max heap size to 40%. This will allow 2 captures to be
// loaded at the same time in RenderDoc. If rebar is supported, this shouldn't be an issue
// as the heap will be much larger.
if (size <= 256_MiB) {
if (size <= MAX_STREAM_BUFFER_SIZE) {
size = size * 40 / 100;
}
} else {
size = MAX_STREAM_BUFFER_SIZE;
}
return (std::min)(Common::AlignUp(size, MAX_ALIGNMENT), MAX_STREAM_BUFFER_SIZE);
return Common::AlignUp(size, MAX_ALIGNMENT);
}
} // Anonymous namespace