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/*
* MVKDescriptorSet.mm
*
* Copyright (c) 2015-2020 The Brenwill Workshop Ltd. (http://www.brenwill.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "MVKDescriptorSet.h"
#include "MVKInstance.h"
#include "MVKOSExtensions.h"
#pragma mark -
#pragma mark MVKDescriptorSetLayout
// A null cmdEncoder can be passed to perform a validation pass
void MVKDescriptorSetLayout::bindDescriptorSet(MVKCommandEncoder* cmdEncoder,
MVKDescriptorSet* descSet,
MVKShaderResourceBinding& dslMTLRezIdxOffsets,
MVKArrayRef<uint32_t> dynamicOffsets,
uint32_t& dynamicOffsetIndex) {
if (!cmdEncoder) { clearConfigurationResult(); }
if ( !_isPushDescriptorLayout ) {
for (auto& dslBind : _bindings) {
dslBind.bind(cmdEncoder, descSet, dslMTLRezIdxOffsets, dynamicOffsets, dynamicOffsetIndex);
}
}
}
static const void* getWriteParameters(VkDescriptorType type, const VkDescriptorImageInfo* pImageInfo,
const VkDescriptorBufferInfo* pBufferInfo, const VkBufferView* pTexelBufferView,
const VkWriteDescriptorSetInlineUniformBlockEXT* pInlineUniformBlock,
size_t& stride) {
const void* pData;
switch (type) {
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
pData = pBufferInfo;
stride = sizeof(VkDescriptorBufferInfo);
break;
case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
case VK_DESCRIPTOR_TYPE_SAMPLER:
case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
pData = pImageInfo;
stride = sizeof(VkDescriptorImageInfo);
break;
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
pData = pTexelBufferView;
stride = sizeof(MVKBufferView*);
break;
case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
pData = pInlineUniformBlock;
stride = sizeof(VkWriteDescriptorSetInlineUniformBlockEXT);
break;
default:
pData = nullptr;
stride = 0;
}
return pData;
}
// A null cmdEncoder can be passed to perform a validation pass
void MVKDescriptorSetLayout::pushDescriptorSet(MVKCommandEncoder* cmdEncoder,
MVKArrayRef<VkWriteDescriptorSet>& descriptorWrites,
MVKShaderResourceBinding& dslMTLRezIdxOffsets) {
if (!_isPushDescriptorLayout) return;
if (!cmdEncoder) { clearConfigurationResult(); }
for (const VkWriteDescriptorSet& descWrite : descriptorWrites) {
uint32_t dstBinding = descWrite.dstBinding;
uint32_t dstArrayElement = descWrite.dstArrayElement;
uint32_t descriptorCount = descWrite.descriptorCount;
const VkDescriptorImageInfo* pImageInfo = descWrite.pImageInfo;
const VkDescriptorBufferInfo* pBufferInfo = descWrite.pBufferInfo;
const VkBufferView* pTexelBufferView = descWrite.pTexelBufferView;
const VkWriteDescriptorSetInlineUniformBlockEXT* pInlineUniformBlock = nullptr;
if (_device->_enabledExtensions.vk_EXT_inline_uniform_block.enabled) {
for (const auto* next = (VkBaseInStructure*)descWrite.pNext; next; next = next->pNext) {
switch (next->sType) {
case VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET_INLINE_UNIFORM_BLOCK_EXT: {
pInlineUniformBlock = (VkWriteDescriptorSetInlineUniformBlockEXT*)next;
break;
}
default:
break;
}
}
}
if (!_bindingToIndex.count(dstBinding)) continue;
// Note: This will result in us walking off the end of the array
// in case there are too many updates... but that's ill-defined anyway.
for (; descriptorCount; dstBinding++) {
if (!_bindingToIndex.count(dstBinding)) continue;
size_t stride;
const void* pData = getWriteParameters(descWrite.descriptorType, pImageInfo,
pBufferInfo, pTexelBufferView, pInlineUniformBlock, stride);
uint32_t descriptorsPushed = 0;
uint32_t bindIdx = _bindingToIndex[dstBinding];
_bindings[bindIdx].push(cmdEncoder, dstArrayElement, descriptorCount,
descriptorsPushed, descWrite.descriptorType,
stride, pData, dslMTLRezIdxOffsets);
pBufferInfo += descriptorsPushed;
pImageInfo += descriptorsPushed;
pTexelBufferView += descriptorsPushed;
}
}
}
// A null cmdEncoder can be passed to perform a validation pass
void MVKDescriptorSetLayout::pushDescriptorSet(MVKCommandEncoder* cmdEncoder,
MVKDescriptorUpdateTemplate* descUpdateTemplate,
const void* pData,
MVKShaderResourceBinding& dslMTLRezIdxOffsets) {
if (!_isPushDescriptorLayout ||
descUpdateTemplate->getType() != VK_DESCRIPTOR_UPDATE_TEMPLATE_TYPE_PUSH_DESCRIPTORS_KHR)
return;
if (!cmdEncoder) { clearConfigurationResult(); }
for (uint32_t i = 0; i < descUpdateTemplate->getNumberOfEntries(); i++) {
const VkDescriptorUpdateTemplateEntryKHR* pEntry = descUpdateTemplate->getEntry(i);
uint32_t dstBinding = pEntry->dstBinding;
uint32_t dstArrayElement = pEntry->dstArrayElement;
uint32_t descriptorCount = pEntry->descriptorCount;
const void* pCurData = (const char*)pData + pEntry->offset;
if (!_bindingToIndex.count(dstBinding)) continue;
// Note: This will result in us walking off the end of the array
// in case there are too many updates... but that's ill-defined anyway.
for (; descriptorCount; dstBinding++) {
if (!_bindingToIndex.count(dstBinding)) continue;
uint32_t descriptorsPushed = 0;
uint32_t bindIdx = _bindingToIndex[dstBinding];
_bindings[bindIdx].push(cmdEncoder, dstArrayElement, descriptorCount,
descriptorsPushed, pEntry->descriptorType,
pEntry->stride, pCurData, dslMTLRezIdxOffsets);
pCurData = (const char*)pCurData + pEntry->stride * descriptorsPushed;
}
}
}
void MVKDescriptorSetLayout::populateShaderConverterContext(mvk::SPIRVToMSLConversionConfiguration& context,
MVKShaderResourceBinding& dslMTLRezIdxOffsets,
uint32_t dslIndex) {
uint32_t bindCnt = (uint32_t)_bindings.size();
for (uint32_t bindIdx = 0; bindIdx < bindCnt; bindIdx++) {
_bindings[bindIdx].populateShaderConverterContext(context, dslMTLRezIdxOffsets, dslIndex);
}
}
MVKDescriptorSetLayout::MVKDescriptorSetLayout(MVKDevice* device,
const VkDescriptorSetLayoutCreateInfo* pCreateInfo) : MVKVulkanAPIDeviceObject(device) {
uint32_t bindCnt = pCreateInfo->bindingCount;
const auto* pBindingFlags = getBindingFlags(pCreateInfo);
// The bindings in VkDescriptorSetLayoutCreateInfo do not need to provided in order of binding number.
// However, several subsequent operations, such as the dynamic offsets in vkCmdBindDescriptorSets()
// are ordered by binding number. To prepare for this, sort the bindings by binding number.
struct BindInfo {
const VkDescriptorSetLayoutBinding* pBinding;
VkDescriptorBindingFlags bindingFlags;
};
MVKSmallVector<BindInfo, 64> sortedBindings;
sortedBindings.reserve(bindCnt);
for (uint32_t bindIdx = 0; bindIdx < bindCnt; bindIdx++) {
sortedBindings.push_back( { &pCreateInfo->pBindings[bindIdx], pBindingFlags ? pBindingFlags[bindIdx] : 0 } );
}
std::sort(sortedBindings.begin(), sortedBindings.end(), [](BindInfo bindInfo1, BindInfo bindInfo2) {
return bindInfo1.pBinding->binding < bindInfo2.pBinding->binding;
});
_isPushDescriptorLayout = (pCreateInfo->flags & VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT_KHR) != 0;
_descriptorCount = 0;
_bindings.reserve(bindCnt);
for (uint32_t bindIdx = 0; bindIdx < bindCnt; bindIdx++) {
BindInfo& bindInfo = sortedBindings[bindIdx];
_bindings.emplace_back(_device, this, bindInfo.pBinding, bindInfo.bindingFlags);
_bindingToIndex[bindInfo.pBinding->binding] = bindIdx;
_bindingToDescriptorIndex[bindInfo.pBinding->binding] = _descriptorCount;
_descriptorCount += _bindings.back().getDescriptorCount(nullptr);
}
}
// Find and return an array of binding flags from the pNext chain of pCreateInfo,
// or return nullptr if the chain does not include binding flags.
const VkDescriptorBindingFlags* MVKDescriptorSetLayout::getBindingFlags(const VkDescriptorSetLayoutCreateInfo* pCreateInfo) {
for (const auto* next = (VkBaseInStructure*)pCreateInfo->pNext; next; next = next->pNext) {
switch (next->sType) {
case VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_BINDING_FLAGS_CREATE_INFO_EXT: {
auto* pDescSetLayoutBindingFlags = (VkDescriptorSetLayoutBindingFlagsCreateInfoEXT*)next;
return pDescSetLayoutBindingFlags->bindingCount ? pDescSetLayoutBindingFlags->pBindingFlags : nullptr;
}
default:
break;
}
}
return nullptr;
}
#pragma mark -
#pragma mark MVKDescriptorSet
VkDescriptorType MVKDescriptorSet::getDescriptorType(uint32_t binding) {
return _layout->getBinding(binding)->getDescriptorType();
}
MVKDescriptor* MVKDescriptorSet::getDescriptor(uint32_t binding, uint32_t elementIndex) {
return _descriptors[_layout->getDescriptorIndex(binding, elementIndex)];
}
template<typename DescriptorAction>
void MVKDescriptorSet::write(const DescriptorAction* pDescriptorAction,
size_t stride,
const void* pData) {
VkDescriptorType descType = getDescriptorType(pDescriptorAction->dstBinding);
if (descType == VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT) {
// For inline buffers dstArrayElement is a byte offset
MVKDescriptor* mvkDesc = getDescriptor(pDescriptorAction->dstBinding);
if (mvkDesc->getDescriptorType() == descType) {
mvkDesc->write(this, pDescriptorAction->dstArrayElement, stride, pData);
}
} else {
uint32_t dstStartIdx = _layout->getDescriptorIndex(pDescriptorAction->dstBinding, pDescriptorAction->dstArrayElement);
uint32_t descCnt = pDescriptorAction->descriptorCount;
for (uint32_t descIdx = 0; descIdx < descCnt; descIdx++) {
MVKDescriptor* mvkDesc = _descriptors[dstStartIdx + descIdx];
if (mvkDesc->getDescriptorType() == descType) {
mvkDesc->write(this, descIdx, stride, pData);
}
}
}
}
// Create concrete implementations of the three variations of the write() function.
template void MVKDescriptorSet::write<VkWriteDescriptorSet>(const VkWriteDescriptorSet* pDescriptorAction,
size_t stride, const void *pData);
template void MVKDescriptorSet::write<VkCopyDescriptorSet>(const VkCopyDescriptorSet* pDescriptorAction,
size_t stride, const void *pData);
template void MVKDescriptorSet::write<VkDescriptorUpdateTemplateEntryKHR>(const VkDescriptorUpdateTemplateEntryKHR* pDescriptorAction,
size_t stride, const void *pData);
void MVKDescriptorSet::read(const VkCopyDescriptorSet* pDescriptorCopy,
VkDescriptorImageInfo* pImageInfo,
VkDescriptorBufferInfo* pBufferInfo,
VkBufferView* pTexelBufferView,
VkWriteDescriptorSetInlineUniformBlockEXT* pInlineUniformBlock) {
VkDescriptorType descType = getDescriptorType(pDescriptorCopy->srcBinding);
uint32_t descCnt = pDescriptorCopy->descriptorCount;
if (descType == VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT) {
// For inline buffers srcArrayElement is a byte offset
MVKDescriptor* mvkDesc = getDescriptor(pDescriptorCopy->srcBinding);
if (mvkDesc->getDescriptorType() == descType) {
mvkDesc->read(this, pDescriptorCopy->srcArrayElement, pImageInfo, pBufferInfo, pTexelBufferView, pInlineUniformBlock);
}
} else {
uint32_t srcStartIdx = _layout->getDescriptorIndex(pDescriptorCopy->srcBinding, pDescriptorCopy->srcArrayElement);
for (uint32_t descIdx = 0; descIdx < descCnt; descIdx++) {
MVKDescriptor* mvkDesc = _descriptors[srcStartIdx + descIdx];
if (mvkDesc->getDescriptorType() == descType) {
mvkDesc->read(this, descIdx, pImageInfo, pBufferInfo, pTexelBufferView, pInlineUniformBlock);
}
}
}
}
MVKDescriptorSet::MVKDescriptorSet(MVKDescriptorSetLayout* layout,
uint32_t variableDescriptorCount,
MVKDescriptorPool* pool) :
MVKVulkanAPIDeviceObject(pool->_device),
_layout(layout),
_variableDescriptorCount(variableDescriptorCount),
_pool(pool) {
_descriptors.reserve(layout->getDescriptorCount());
uint32_t bindCnt = (uint32_t)layout->_bindings.size();
for (uint32_t bindIdx = 0; bindIdx < bindCnt; bindIdx++) {
MVKDescriptorSetLayoutBinding* mvkDSLBind = &layout->_bindings[bindIdx];
uint32_t descCnt = mvkDSLBind->getDescriptorCount(this);
for (uint32_t descIdx = 0; descIdx < descCnt; descIdx++) {
MVKDescriptor* mvkDesc = nullptr;
setConfigurationResult(_pool->allocateDescriptor(mvkDSLBind->getDescriptorType(), &mvkDesc));
if ( !wasConfigurationSuccessful() ) { break; }
mvkDesc->setLayout(mvkDSLBind, descIdx);
_descriptors.push_back(mvkDesc);
}
if ( !wasConfigurationSuccessful() ) { break; }
}
}
MVKDescriptorSet::~MVKDescriptorSet() {
for (auto mvkDesc : _descriptors) { _pool->freeDescriptor(mvkDesc); }
}
#pragma mark -
#pragma mark MVKDescriptorTypePreallocation
#ifndef MVK_CONFIG_PREALLOCATE_DESCRIPTORS
# define MVK_CONFIG_PREALLOCATE_DESCRIPTORS 0
#endif
static bool _mvkPreallocateDescriptors = MVK_CONFIG_PREALLOCATE_DESCRIPTORS;
static bool _mvkPreallocateDescriptorsInitialized = false;
// Returns whether descriptors should be preallocated in the descriptor pools
// We do this once lazily instead of in a library constructor function to
// ensure the NSProcessInfo environment is available when called upon.
static inline bool getMVKPreallocateDescriptors() {
if ( !_mvkPreallocateDescriptorsInitialized ) {
_mvkPreallocateDescriptorsInitialized = true;
MVK_SET_FROM_ENV_OR_BUILD_BOOL(_mvkPreallocateDescriptors, MVK_CONFIG_PREALLOCATE_DESCRIPTORS);
}
return _mvkPreallocateDescriptors;
}
template<class DescriptorClass>
VkResult MVKDescriptorTypePreallocation<DescriptorClass>::allocateDescriptor(MVKDescriptor** pMVKDesc) {
uint32_t descCnt = (uint32_t)_descriptors.size();
// Preallocated descriptors that CANNOT be freed.
// Next available index can only monotonically increase towards the limit.
if ( !_supportAvailability ) {
if (_nextAvailableIndex < descCnt) {
*pMVKDesc = &_descriptors[_nextAvailableIndex++];
return VK_SUCCESS;
} else {
return VK_ERROR_OUT_OF_POOL_MEMORY;
}
}
// Descriptors that CAN be freed.
// An available index might exist anywhere in the pool of descriptors.
uint32_t origNextAvailPoolIdx = _nextAvailableIndex;
// First start looking from most recently found available slot
if (findDescriptor(descCnt, pMVKDesc)) { return VK_SUCCESS; }
// Then look from beginning of the collection, in case any previous descriptors were freed
_nextAvailableIndex = 0;
if (findDescriptor(origNextAvailPoolIdx, pMVKDesc)) { return VK_SUCCESS; }
return VK_ERROR_OUT_OF_POOL_MEMORY;
}
// Find a descriptor within a range in a preallocated collection based on availability,
// and return true if found, false if not
template<typename DescriptorClass>
bool MVKDescriptorTypePreallocation<DescriptorClass>::findDescriptor(uint32_t endIndex,
MVKDescriptor** pMVKDesc) {
while (_nextAvailableIndex < endIndex) {
if (_availability[_nextAvailableIndex]) {
_availability[_nextAvailableIndex] = false;
*pMVKDesc = &_descriptors[_nextAvailableIndex];
_nextAvailableIndex++;
return true;
}
_nextAvailableIndex++;
}
return false;
}
// Reset a descriptor and mark it available, if applicable
template<typename DescriptorClass>
void MVKDescriptorTypePreallocation<DescriptorClass>::freeDescriptor(MVKDescriptor* mvkDesc) {
mvkDesc->reset();
if (_supportAvailability) {
bool found = false;
size_t descCnt = _descriptors.size();
for (uint32_t descIdx = 0; !found && descIdx < descCnt; descIdx++) {
if (&_descriptors[descIdx] == mvkDesc) {
found = true;
_availability[descIdx] = true;
}
}
}
}
template<typename DescriptorClass>
void MVKDescriptorTypePreallocation<DescriptorClass>::reset() {
_nextAvailableIndex = 0;
}
template<typename DescriptorClass>
MVKDescriptorTypePreallocation<DescriptorClass>::MVKDescriptorTypePreallocation(const VkDescriptorPoolCreateInfo* pCreateInfo,
VkDescriptorType descriptorType) {
// There may be more than one poolSizeCount instance for the desired VkDescriptorType.
// Accumulate the descriptor count for the desired VkDescriptorType, and size the collections accordingly.
uint32_t descriptorCount = 0;
uint32_t poolCnt = pCreateInfo->poolSizeCount;
for (uint32_t poolIdx = 0; poolIdx < poolCnt; poolIdx++) {
auto& poolSize = pCreateInfo->pPoolSizes[poolIdx];
if (poolSize.type == descriptorType) { descriptorCount += poolSize.descriptorCount; }
}
_descriptors.resize(descriptorCount);
// Determine whether we need to track the availability of previously freed descriptors.
_supportAvailability = mvkIsAnyFlagEnabled(pCreateInfo->flags, VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT);
if (_supportAvailability) { _availability.resize(descriptorCount, true); }
_nextAvailableIndex = 0;
}
#pragma mark -
#pragma mark MVKPreallocatedDescriptors
// Allocate a descriptor of the specified type
VkResult MVKPreallocatedDescriptors::allocateDescriptor(VkDescriptorType descriptorType,
MVKDescriptor** pMVKDesc) {
switch (descriptorType) {
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
return _uniformBufferDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
return _storageBufferDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
return _uniformBufferDynamicDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
return _storageBufferDynamicDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
return _inlineUniformBlockDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
return _sampledImageDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
return _storageImageDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
return _inputAttachmentDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_SAMPLER:
return _samplerDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
return _combinedImageSamplerDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
return _uniformTexelBufferDescriptors.allocateDescriptor(pMVKDesc);
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
return _storageTexelBufferDescriptors.allocateDescriptor(pMVKDesc);
default:
return reportError(VK_ERROR_INITIALIZATION_FAILED, "Unrecognized VkDescriptorType %d.", descriptorType);
}
}
void MVKPreallocatedDescriptors::freeDescriptor(MVKDescriptor* mvkDesc) {
VkDescriptorType descriptorType = mvkDesc->getDescriptorType();
switch (descriptorType) {
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
return _uniformBufferDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
return _storageBufferDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
return _uniformBufferDynamicDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
return _storageBufferDynamicDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
return _inlineUniformBlockDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
return _sampledImageDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
return _storageImageDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
return _inputAttachmentDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_SAMPLER:
return _samplerDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
return _combinedImageSamplerDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
return _uniformTexelBufferDescriptors.freeDescriptor(mvkDesc);
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
return _storageTexelBufferDescriptors.freeDescriptor(mvkDesc);
default:
reportError(VK_ERROR_INITIALIZATION_FAILED, "Unrecognized VkDescriptorType %d.", descriptorType);
}
}
void MVKPreallocatedDescriptors::reset() {
_uniformBufferDescriptors.reset();
_storageBufferDescriptors.reset();
_uniformBufferDynamicDescriptors.reset();
_storageBufferDynamicDescriptors.reset();
_inlineUniformBlockDescriptors.reset();
_sampledImageDescriptors.reset();
_storageImageDescriptors.reset();
_inputAttachmentDescriptors.reset();
_samplerDescriptors.reset();
_combinedImageSamplerDescriptors.reset();
_uniformTexelBufferDescriptors.reset();
_storageTexelBufferDescriptors.reset();
}
MVKPreallocatedDescriptors::MVKPreallocatedDescriptors(const VkDescriptorPoolCreateInfo* pCreateInfo) :
_uniformBufferDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER),
_storageBufferDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_STORAGE_BUFFER),
_uniformBufferDynamicDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC),
_storageBufferDynamicDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC),
_inlineUniformBlockDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT),
_sampledImageDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE),
_storageImageDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_STORAGE_IMAGE),
_inputAttachmentDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT),
_samplerDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_SAMPLER),
_combinedImageSamplerDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER),
_uniformTexelBufferDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER),
_storageTexelBufferDescriptors(pCreateInfo, VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER) {
}
#pragma mark -
#pragma mark MVKDescriptorPool
VkResult MVKDescriptorPool::allocateDescriptorSets(const VkDescriptorSetAllocateInfo* pAllocateInfo,
VkDescriptorSet* pDescriptorSets) {
if (_allocatedSets.size() + pAllocateInfo->descriptorSetCount > _maxSets) {
if (_device->_enabledExtensions.vk_KHR_maintenance1.enabled ||
_device->getInstance()->getAPIVersion() >= VK_API_VERSION_1_1) {
return VK_ERROR_OUT_OF_POOL_MEMORY; // Failure is an acceptable test...don't log as error.
} else {
return reportError(VK_ERROR_INITIALIZATION_FAILED, "The maximum number of descriptor sets that can be allocated by this descriptor pool is %d.", _maxSets);
}
}
VkResult rslt = VK_SUCCESS;
const auto* pVarDescCounts = getVariableDecriptorCounts(pAllocateInfo);
for (uint32_t dsIdx = 0; dsIdx < pAllocateInfo->descriptorSetCount; dsIdx++) {
MVKDescriptorSetLayout* mvkDSL = (MVKDescriptorSetLayout*)pAllocateInfo->pSetLayouts[dsIdx];
if ( !mvkDSL->isPushDescriptorLayout() ) {
rslt = allocateDescriptorSet(mvkDSL, (pVarDescCounts ? pVarDescCounts[dsIdx] : 0), &pDescriptorSets[dsIdx]);
if (rslt) { break; }
}
}
return rslt;
}
// Find and return an array of variable descriptor counts from the pNext chain of pCreateInfo,
// or return nullptr if the chain does not include variable descriptor counts.
const uint32_t* MVKDescriptorPool::getVariableDecriptorCounts(const VkDescriptorSetAllocateInfo* pAllocateInfo) {
for (const auto* next = (VkBaseInStructure*)pAllocateInfo->pNext; next; next = next->pNext) {
switch (next->sType) {
case VK_STRUCTURE_TYPE_DESCRIPTOR_SET_VARIABLE_DESCRIPTOR_COUNT_ALLOCATE_INFO_EXT: {
auto* pVarDescSetVarCounts = (VkDescriptorSetVariableDescriptorCountAllocateInfoEXT*)next;
return pVarDescSetVarCounts->descriptorSetCount ? pVarDescSetVarCounts->pDescriptorCounts : nullptr;
}
default:
break;
}
}
return nullptr;
}
// Ensure descriptor set was actually allocated, then return to pool
VkResult MVKDescriptorPool::freeDescriptorSets(uint32_t count, const VkDescriptorSet* pDescriptorSets) {
for (uint32_t dsIdx = 0; dsIdx < count; dsIdx++) {
MVKDescriptorSet* mvkDS = (MVKDescriptorSet*)pDescriptorSets[dsIdx];
if (_allocatedSets.erase(mvkDS)) {
freeDescriptorSet(mvkDS);
}
}
return VK_SUCCESS;
}
// Destroy all allocated descriptor sets
VkResult MVKDescriptorPool::reset(VkDescriptorPoolResetFlags flags) {
for (auto& mvkDS : _allocatedSets) { freeDescriptorSet(mvkDS); }
_allocatedSets.clear();
if (_preallocatedDescriptors) { _preallocatedDescriptors->reset(); }
return VK_SUCCESS;
}
VkResult MVKDescriptorPool::allocateDescriptorSet(MVKDescriptorSetLayout* mvkDSL,
uint32_t variableDescriptorCount,
VkDescriptorSet* pVKDS) {
MVKDescriptorSet* mvkDS = new MVKDescriptorSet(mvkDSL, variableDescriptorCount, this);
VkResult rslt = mvkDS->getConfigurationResult();
if (mvkDS->wasConfigurationSuccessful()) {
_allocatedSets.insert(mvkDS);
*pVKDS = (VkDescriptorSet)mvkDS;
} else {
freeDescriptorSet(mvkDS);
}
return rslt;
}
void MVKDescriptorPool::freeDescriptorSet(MVKDescriptorSet* mvkDS) { mvkDS->destroy(); }
// Allocate a descriptor of the specified type
VkResult MVKDescriptorPool::allocateDescriptor(VkDescriptorType descriptorType,
MVKDescriptor** pMVKDesc) {
// If descriptors are preallocated allocate from the preallocated pools
if (_preallocatedDescriptors) {
return _preallocatedDescriptors->allocateDescriptor(descriptorType, pMVKDesc);
}
// Otherwise instantiate one of the appropriate type now
switch (descriptorType) {
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
*pMVKDesc = new MVKUniformBufferDescriptor();
break;
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
*pMVKDesc = new MVKStorageBufferDescriptor();
break;
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
*pMVKDesc = new MVKUniformBufferDynamicDescriptor();
break;
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
*pMVKDesc = new MVKStorageBufferDynamicDescriptor();
break;
case VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT:
*pMVKDesc = new MVKInlineUniformBlockDescriptor();
break;
case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
*pMVKDesc = new MVKSampledImageDescriptor();
break;
case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
*pMVKDesc = new MVKStorageImageDescriptor();
break;
case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
*pMVKDesc = new MVKInputAttachmentDescriptor();
break;
case VK_DESCRIPTOR_TYPE_SAMPLER:
*pMVKDesc = new MVKSamplerDescriptor();
break;
case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
*pMVKDesc = new MVKCombinedImageSamplerDescriptor();
break;
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
*pMVKDesc = new MVKUniformTexelBufferDescriptor();
break;
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
*pMVKDesc = new MVKStorageTexelBufferDescriptor();
break;
default:
return reportError(VK_ERROR_INITIALIZATION_FAILED, "Unrecognized VkDescriptorType %d.", descriptorType);
}
return VK_SUCCESS;
}
// Free a descriptor, either through the preallocated pool, or directly destroy it
void MVKDescriptorPool::freeDescriptor(MVKDescriptor* mvkDesc) {
if (_preallocatedDescriptors) {
_preallocatedDescriptors->freeDescriptor(mvkDesc);
} else {
mvkDesc->destroy();
}
}
MVKDescriptorPool::MVKDescriptorPool(MVKDevice* device,
const VkDescriptorPoolCreateInfo* pCreateInfo) : MVKVulkanAPIDeviceObject(device) {
_maxSets = pCreateInfo->maxSets;
_preallocatedDescriptors = getMVKPreallocateDescriptors() ? new MVKPreallocatedDescriptors(pCreateInfo) : nullptr;
}
// Destroy all allocated descriptor sets and preallocated descriptors
MVKDescriptorPool::~MVKDescriptorPool() {
reset(0);
if (_preallocatedDescriptors) { _preallocatedDescriptors->destroy(); }
}
#pragma mark -
#pragma mark MVKDescriptorUpdateTemplate
const VkDescriptorUpdateTemplateEntryKHR* MVKDescriptorUpdateTemplate::getEntry(uint32_t n) const {
return &_entries[n];
}
uint32_t MVKDescriptorUpdateTemplate::getNumberOfEntries() const {
return (uint32_t)_entries.size();
}
VkDescriptorUpdateTemplateTypeKHR MVKDescriptorUpdateTemplate::getType() const {
return _type;
}
MVKDescriptorUpdateTemplate::MVKDescriptorUpdateTemplate(MVKDevice* device,
const VkDescriptorUpdateTemplateCreateInfoKHR* pCreateInfo) :
MVKVulkanAPIDeviceObject(device), _type(pCreateInfo->templateType) {
for (uint32_t i = 0; i < pCreateInfo->descriptorUpdateEntryCount; i++)
_entries.push_back(pCreateInfo->pDescriptorUpdateEntries[i]);
}
#pragma mark -
#pragma mark Support functions
// Updates the resource bindings in the descriptor sets inditified in the specified content.
void mvkUpdateDescriptorSets(uint32_t writeCount,
const VkWriteDescriptorSet* pDescriptorWrites,
uint32_t copyCount,
const VkCopyDescriptorSet* pDescriptorCopies) {
// Perform the write updates
for (uint32_t i = 0; i < writeCount; i++) {
const VkWriteDescriptorSet* pDescWrite = &pDescriptorWrites[i];
size_t stride;
MVKDescriptorSet* dstSet = (MVKDescriptorSet*)pDescWrite->dstSet;
const VkWriteDescriptorSetInlineUniformBlockEXT* pInlineUniformBlock = nullptr;
if (dstSet->getDevice()->_enabledExtensions.vk_EXT_inline_uniform_block.enabled) {
for (const auto* next = (VkBaseInStructure*)pDescWrite->pNext; next; next = next->pNext) {
switch (next->sType) {
case VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET_INLINE_UNIFORM_BLOCK_EXT: {
pInlineUniformBlock = (VkWriteDescriptorSetInlineUniformBlockEXT*)next;
break;
}
default:
break;
}
}
}
const void* pData = getWriteParameters(pDescWrite->descriptorType, pDescWrite->pImageInfo,
pDescWrite->pBufferInfo, pDescWrite->pTexelBufferView,
pInlineUniformBlock, stride);
dstSet->write(pDescWrite, stride, pData);
}
// Perform the copy updates by reading bindings from one set and writing to other set.
for (uint32_t i = 0; i < copyCount; i++) {
const VkCopyDescriptorSet* pDescCopy = &pDescriptorCopies[i];
uint32_t descCnt = pDescCopy->descriptorCount;
VkDescriptorImageInfo imgInfos[descCnt];
VkDescriptorBufferInfo buffInfos[descCnt];
VkBufferView texelBuffInfos[descCnt];
// For inline block create a temp buffer of descCnt bytes to hold data during copy.
uint8_t dstBuffer[descCnt];
VkWriteDescriptorSetInlineUniformBlockEXT inlineUniformBlock;
inlineUniformBlock.pData = dstBuffer;
inlineUniformBlock.dataSize = descCnt;
MVKDescriptorSet* srcSet = (MVKDescriptorSet*)pDescCopy->srcSet;
srcSet->read(pDescCopy, imgInfos, buffInfos, texelBuffInfos, &inlineUniformBlock);
MVKDescriptorSet* dstSet = (MVKDescriptorSet*)pDescCopy->dstSet;
VkDescriptorType descType = dstSet->getDescriptorType(pDescCopy->dstBinding);
size_t stride;
const void* pData = getWriteParameters(descType, imgInfos, buffInfos, texelBuffInfos, &inlineUniformBlock, stride);
dstSet->write(pDescCopy, stride, pData);
}
}
// Updates the resource bindings in the given descriptor set from the specified template.
void mvkUpdateDescriptorSetWithTemplate(VkDescriptorSet descriptorSet,
VkDescriptorUpdateTemplateKHR updateTemplate,
const void* pData) {
MVKDescriptorSet* dstSet = (MVKDescriptorSet*)descriptorSet;
MVKDescriptorUpdateTemplate* pTemplate = (MVKDescriptorUpdateTemplate*)updateTemplate;
if (pTemplate->getType() != VK_DESCRIPTOR_UPDATE_TEMPLATE_TYPE_DESCRIPTOR_SET_KHR)
return;
// Perform the updates
for (uint32_t i = 0; i < pTemplate->getNumberOfEntries(); i++) {
const VkDescriptorUpdateTemplateEntryKHR* pEntry = pTemplate->getEntry(i);
const void* pCurData = (const char*)pData + pEntry->offset;
dstSet->write(pEntry, pEntry->stride, pCurData);
}
}
void mvkPopulateShaderConverterContext(mvk::SPIRVToMSLConversionConfiguration& context,
MVKShaderStageResourceBinding& ssRB,
spv::ExecutionModel stage,
uint32_t descriptorSetIndex,
uint32_t bindingIndex,
uint32_t count,
MVKSampler* immutableSampler) {
mvk::MSLResourceBinding rb;
auto& rbb = rb.resourceBinding;
rbb.stage = stage;
rbb.desc_set = descriptorSetIndex;
rbb.binding = bindingIndex;
rbb.count = count;
rbb.msl_buffer = ssRB.bufferIndex;
rbb.msl_texture = ssRB.textureIndex;
rbb.msl_sampler = ssRB.samplerIndex;
if (immutableSampler) { immutableSampler->getConstexprSampler(rb); }
context.resourceBindings.push_back(rb);
}