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gl_buffer_cache: Copy to buffers created as STREAM_READ before downloading

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After marking buffers as resident, Nvidia's driver seems to take a
slow path. To workaround this issue, copy to a STREAM_READ buffer and
then call GetNamedBufferSubData on it.

This is a temporary solution until we have asynchronous flushing.
This commit is contained in:
ReinUsesLisp 2020-06-26 16:58:40 -03:00
parent 257cf13b70
commit 95c7c7db0a
5 changed files with 24 additions and 18 deletions
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6
src/video_core/buffer_cache/buffer_cache.h
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@ -322,8 +322,7 @@ protected:
}
private:
MapInterval* MapAddress(const Buffer* block, GPUVAddr gpu_addr, VAddr cpu_addr,
std::size_t size) {
MapInterval* MapAddress(Buffer* block, GPUVAddr gpu_addr, VAddr cpu_addr, std::size_t size) {
const VectorMapInterval overlaps = GetMapsInRange(cpu_addr, size);
if (overlaps.empty()) {
auto& memory_manager = system.GPU().MemoryManager();
@ -377,8 +376,7 @@ private:
return map;
}
void UpdateBlock(const Buffer* block, VAddr start, VAddr end,
const VectorMapInterval& overlaps) {
void UpdateBlock(Buffer* block, VAddr start, VAddr end, const VectorMapInterval& overlaps) {
const IntervalType base_interval{start, end};
IntervalSet interval_set{};
interval_set.add(base_interval);