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[dxvk] Optimize descriptor set binding further

This commit is contained in:
Philip Rebohle 2022-06-25 16:02:22 +02:00
parent db07861518
commit 8d1d3d66e0
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GPG Key ID: C8CC613427A31C99
2 changed files with 22 additions and 41 deletions
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46
src/dxvk/dxvk_context.cpp
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@ -85,8 +85,6 @@ namespace dxvk {
VK_SHADER_STAGE_ALL_GRAPHICS |
VK_SHADER_STAGE_COMPUTE_BIT);
m_descriptorState.clearSets();
m_state.gp.pipeline = nullptr;
m_state.cp.pipeline = nullptr;
@ -4113,10 +4111,10 @@ namespace dxvk {
: m_descriptorState.getDirtyComputeSets();
dirtySetMask &= layoutSetMask;
uint32_t firstUpdated = bit::tzcnt(dirtySetMask);
uint32_t bindCount = 0;
uint32_t k = 0;
std::array<VkDescriptorSet, DxvkDescriptorSets::SetCount> sets = { };
std::array<VkDescriptorSet, DxvkDescriptorSets::SetCount> sets;
m_descriptorPool->alloc(layout, dirtySetMask, sets.data());
while (dirtySetMask) {
@ -4130,7 +4128,6 @@ namespace dxvk {
newBindMask.setRange(bindingIndex, bindingCount);
VkDescriptorSet set = sets[setIndex];
m_descriptorState.getSet<BindPoint>(setIndex) = set;
for (uint32_t j = 0; j < bindingCount; j++) {
const auto& binding = bindings.getBinding(setIndex, j);
@ -4287,28 +4284,29 @@ namespace dxvk {
&m_descriptors[k - bindingCount]);
}
bindCount += 1;
// If the next set is not dirty, update and bind all previously
// updated sets in one go in order to reduce api call overhead.
if (!(dirtySetMask & (1u << (setIndex + 1)))) {
if (!useDescriptorTemplates) {
m_cmd->updateDescriptorSets(k, m_descriptorWrites.data());
k = 0;
}
uint32_t firstSet = setIndex + 1 - bindCount;
m_cmd->cmdBindDescriptorSets(BindPoint,
layout->getPipelineLayout(),
firstSet, bindCount, &sets[firstSet],
0, nullptr);
bindCount = 0;
}
dirtySetMask &= dirtySetMask - 1;
}
if (!useDescriptorTemplates && k)
m_cmd->updateDescriptorSets(k, m_descriptorWrites.data());
// Bind all descriptor sets that need updating
uint32_t bindSetMask = layoutSetMask & ((~0u) << firstUpdated);
while (bindSetMask) {
uint32_t setIndex = bit::tzcnt(bindSetMask);
uint32_t setCount = bit::tzcnt(~(bindSetMask >> setIndex));
VkDescriptorSet* sets = &m_descriptorState.getSet<BindPoint>(setIndex);
m_cmd->cmdBindDescriptorSets(BindPoint,
layout->getPipelineLayout(),
setIndex, setCount, sets, 0, nullptr);
bindSetMask &= (~0u) << (setIndex + setCount);
}
// Update pipeline if there are unbound resources
if (refBindMask != newBindMask) {
refBindMask = newBindMask;

17
src/dxvk/dxvk_pipelayout.h
View File

@ -523,28 +523,11 @@ namespace dxvk {
return result;
}
void clearSets() {
for (size_t i = 0; i < m_sets.size(); i++)
m_sets[i] = VK_NULL_HANDLE;
}
template<VkPipelineBindPoint BindPoint>
VkDescriptorSet& getSet(uint32_t index) {
return m_sets[BindPoint * DxvkDescriptorSets::SetCount + index];
}
template<VkPipelineBindPoint BindPoint>
const VkDescriptorSet& getSet(uint32_t index) const {
return m_sets[BindPoint * DxvkDescriptorSets::SetCount + index];
}
private:
VkShaderStageFlags m_dirtyBuffers = 0;
VkShaderStageFlags m_dirtyViews = 0;
std::array<VkDescriptorSet, 2 * DxvkDescriptorSets::SetCount> m_sets;
};
}