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[dxvk] Don't lock swap lock if not necessary

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The swap lock only protects the 'next' free list, which
is not accessed at all when creating a new buffer.
This commit is contained in:
Philip Rebohle 2019-10-26 14:20:04 +02:00
parent e868f829b5
commit 7751541662
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GPG Key ID: C8CC613427A31C99
1 changed files with 2 additions and 3 deletions
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src/dxvk/dxvk_buffer.h
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@ -236,15 +236,14 @@ namespace dxvk {
std::unique_lock<sync::Spinlock> freeLock(m_freeMutex);
// If no slices are available, swap the two free lists.
if (unlikely(m_freeSlices.size() == 0)) {
if (unlikely(m_freeSlices.empty())) {
std::unique_lock<sync::Spinlock> swapLock(m_swapMutex);
std::swap(m_freeSlices, m_nextSlices);
}
// If there are still no slices available, create a new
// backing buffer and add all slices to the free list.
if (unlikely(m_freeSlices.size() == 0)) {
std::unique_lock<sync::Spinlock> swapLock(m_swapMutex);
if (unlikely(m_freeSlices.empty())) {
DxvkBufferHandle handle = allocBuffer(m_physSliceCount);
DxvkBufferSliceHandle slice;