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[dxvk] Add function to find set bits in binding mask

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Philip Rebohle 2019-08-26 18:08:47 +02:00
parent d2d19b0dec
commit 473025a93b
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1 changed files with 24 additions and 0 deletions
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src/dxvk/dxvk_bind_mask.h
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@ -97,6 +97,30 @@ namespace dxvk {
}
}
/**
* \brief Finds next set binding
*
* \param [in] first Fist bit to consider
* \returns Binding ID, or -1 if none was found
*/
int32_t findNext(uint32_t first) const {
if (unlikely(first >= BindingCount))
return -1;
uint32_t intId = first / BitCount;
uint32_t bitId = first % BitCount;
auto mask = m_slots[intId] & ~((1 << bitId) - 1);
while (!mask && ++intId < IntCount)
mask = m_slots[intId];
if (!mask)
return -1;
return BitCount * intId + bit::tzcnt(mask);
}
bool operator == (const DxvkBindingSet& other) const {
bool eq = true;
for (uint32_t i = 0; i < IntCount; i++)