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[dxvk] Add function to set bind mask bit to a given value

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This commit is contained in:
Philip Rebohle 2019-08-26 17:19:45 +02:00
parent e7b71926e3
commit d2d19b0dec
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GPG Key ID: C8CC613427A31C99
1 changed files with 23 additions and 15 deletions
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38
src/dxvk/dxvk_bind_mask.h
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@ -35,6 +35,26 @@ namespace dxvk {
return (m_slots[intId] & bitMask) != 0; return (m_slots[intId] & bitMask) != 0;
} }
/**
* \brief Changes a single binding
*
* \param [in] slot The binding ID
* \param [in] value New binding state
* \returns \c true if the state has changed
*/
bool set(uint32_t slot, bool value) {
const uint32_t intId = slot / BitCount;
const uint32_t bitId = slot % BitCount;
const uint32_t bitMask = 1u << bitId;
const uint32_t prev = m_slots[intId];
const uint32_t next = value
? prev | bitMask
: prev & ~bitMask;
m_slots[intId] = next;
return prev != next;
}
/** /**
* \brief Marks a binding as active * \brief Marks a binding as active
* *
@ -42,15 +62,9 @@ namespace dxvk {
* \returns \c true if the state has changed * \returns \c true if the state has changed
*/ */
bool set(uint32_t slot) { bool set(uint32_t slot) {
const uint32_t intId = slot / BitCount; return set(slot, true);
const uint32_t bitId = slot % BitCount;
const uint32_t bitMask = 1u << bitId;
const uint32_t prev = m_slots[intId];
m_slots[intId] = prev | bitMask;
return (prev & bitMask) == 0;
} }
/** /**
* \brief Marks a binding as inactive * \brief Marks a binding as inactive
* *
@ -58,13 +72,7 @@ namespace dxvk {
* \returns \c true if the state has changed * \returns \c true if the state has changed
*/ */
bool clr(uint32_t slot) { bool clr(uint32_t slot) {
const uint32_t intId = slot / BitCount; return set(slot, false);
const uint32_t bitId = slot % BitCount;
const uint32_t bitMask = 1u << bitId;
const uint32_t prev = m_slots[intId];
m_slots[intId] = prev & ~bitMask;
return (prev & bitMask) != 0;
} }
/** /**