mirror of https://github.com/doitsujin/dxvk
101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
#pragma once
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#include "dxvk_buffer.h"
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#include "dxvk_descriptor.h"
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#include "dxvk_image.h"
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#include "dxvk_limits.h"
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#include "dxvk_sampler.h"
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namespace dxvk {
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/**
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* \brief Binding state
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*
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* Used to track which resource slots have a compatible
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* binding and which ones don't. This is used to set up
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* binding-related specialization constants in shaders.
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* \tparam N Number of binding slots
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*/
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class DxvkBindingState {
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constexpr static uint32_t BitCount = 32;
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constexpr static uint32_t IntCount = (MaxNumActiveBindings + BitCount - 1) / BitCount;
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public:
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/**
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* \brief Tests whether a binding is active
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*
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* \param [in] slot The binding ID
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* \returns \c true if the binding is active
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*/
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bool isBound(uint32_t slot) const {
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const uint32_t intId = slot / BitCount;
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const uint32_t bitId = slot % BitCount;
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const uint32_t bitMask = 1u << bitId;
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return (m_slots[intId] & bitMask) != 0;
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}
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/**
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* \brief Marks a binding as active
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*
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* \param [in] slot The binding ID
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* \returns \c true if the state has changed
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*/
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bool setBound(uint32_t slot) {
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const uint32_t intId = slot / BitCount;
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const uint32_t bitId = slot % BitCount;
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const uint32_t bitMask = 1u << bitId;
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const uint32_t prev = m_slots[intId];
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m_slots[intId] = prev | bitMask;
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return (prev & bitMask) == 0;
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}
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/**
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* \brief Marks a binding as inactive
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*
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* \param [in] slot The binding ID
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* \returns \c true if the state has changed
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*/
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bool setUnbound(uint32_t slot) {
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const uint32_t intId = slot / BitCount;
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const uint32_t bitId = slot % BitCount;
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const uint32_t bitMask = 1u << bitId;
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const uint32_t prev = m_slots[intId];
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m_slots[intId] = prev & ~bitMask;
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return (prev & bitMask) != 0;
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}
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/**
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* \brief Clears binding state
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*
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* Useful to zero out any bindings
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* that are not used by a pipeline.
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*/
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void clear() {
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for (uint32_t i = 0; i < IntCount; i++)
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m_slots[i] = 0;
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}
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private:
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uint32_t m_slots[IntCount];
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};
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/**
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* \brief Bound shader resources
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*
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* Stores the resources bound to a binding
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* slot in DXVK. These are used to create
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* descriptor sets.
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*/
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struct DxvkShaderResourceSlot {
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Rc<DxvkSampler> sampler;
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Rc<DxvkImageView> imageView;
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Rc<DxvkBufferView> bufferView;
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DxvkBufferSlice bufferSlice;
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};
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} |