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buffer_cache: Delay buffer destructions

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Delay buffer destruction some extra frames to avoid destroying buffers
that are still being used from older frames. This happens on Nvidia's
driver with mailbox.
This commit is contained in:
ReinUsesLisp 2020-01-21 16:27:43 -03:00
parent b11aeced18
commit b35449c85d
1 changed files with 4 additions and 1 deletions
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5
src/video_core/buffer_cache/buffer_cache.h
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@ -101,7 +101,10 @@ public:
void TickFrame() { void TickFrame() {
++epoch; ++epoch;
while (!pending_destruction.empty()) { while (!pending_destruction.empty()) {
if (pending_destruction.front()->GetEpoch() + 1 > epoch) { // Delay at least 4 frames before destruction.
// This is due to triple buffering happening on some drivers.
static constexpr u64 epochs_to_destroy = 5;
if (pending_destruction.front()->GetEpoch() + epochs_to_destroy > epoch) {
break; break;
} }
pending_destruction.pop_front(); pending_destruction.pop_front();