127 lines
No EOL
6.2 KiB
C++
127 lines
No EOL
6.2 KiB
C++
/*
|
|
Crafter®.Graphics
|
|
Copyright (C) 2026 Catcrafts®
|
|
catcrafts.net
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License version 3.0 as published by the Free Software Foundation;
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
module;
|
|
#include "vulkan/vulkan.h"
|
|
export module Crafter.Graphics:DescriptorHeapVulkan;
|
|
import std;
|
|
import :Device;
|
|
import :Window;
|
|
import :Types;
|
|
import :VulkanBuffer;
|
|
|
|
export namespace Crafter {
|
|
struct ImageSlotRange { std::uint16_t firstElement; std::uint16_t count; };
|
|
struct BufferSlotRange { std::uint16_t firstElement; std::uint16_t count; };
|
|
struct SamplerSlotRange { std::uint16_t firstElement; std::uint16_t count; };
|
|
|
|
struct DescriptorHeapVulkan {
|
|
VulkanBuffer<std::uint8_t, true> resourceHeap[Window::numFrames];
|
|
VulkanBuffer<std::uint8_t, true> samplerHeap[Window::numFrames];
|
|
std::uint32_t bufferStartOffset;
|
|
std::uint16_t bufferStartElement;
|
|
|
|
std::uint16_t imageCapacity = 0;
|
|
std::uint16_t bufferCapacity = 0;
|
|
std::uint16_t samplerCapacity = 0;
|
|
std::uint16_t imageNext = 0;
|
|
std::uint16_t bufferNext = 0;
|
|
std::uint16_t samplerNext = 0;
|
|
|
|
void Initialize(std::uint16_t images, std::uint16_t buffers, std::uint16_t samplers) {
|
|
std::uint32_t descriptorRegion = images * Device::descriptorHeapProperties.imageDescriptorSize + buffers * Device::descriptorHeapProperties.bufferDescriptorSize;
|
|
std::uint32_t alignedDescriptorRegion = (descriptorRegion + Device::descriptorHeapProperties.imageDescriptorAlignment - 1) & ~(Device::descriptorHeapProperties.imageDescriptorAlignment - 1);
|
|
std::uint32_t resourceSize = alignedDescriptorRegion + Device::descriptorHeapProperties.minResourceHeapReservedRange;
|
|
std::uint32_t samplerSize = samplers * Device::descriptorHeapProperties.samplerDescriptorSize + Device::descriptorHeapProperties.minSamplerHeapReservedRange;
|
|
bufferStartElement = images * Device::descriptorHeapProperties.imageDescriptorSize / Device::descriptorHeapProperties.bufferDescriptorSize;
|
|
|
|
if(images > 0 && bufferStartElement == 0) {
|
|
bufferStartElement = 1;
|
|
}
|
|
bufferStartOffset = bufferStartElement * Device::descriptorHeapProperties.bufferDescriptorSize;
|
|
|
|
imageCapacity = images;
|
|
bufferCapacity = buffers;
|
|
samplerCapacity = samplers;
|
|
imageNext = 0;
|
|
bufferNext = 0;
|
|
samplerNext = 0;
|
|
|
|
for(std::uint8_t i = 0; i < Window::numFrames; i++) {
|
|
resourceHeap[i].Resize(VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT | VK_BUFFER_USAGE_DESCRIPTOR_HEAP_BIT_EXT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, resourceSize);
|
|
samplerHeap[i].Resize(VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT | VK_BUFFER_USAGE_DESCRIPTOR_HEAP_BIT_EXT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, samplerSize);
|
|
}
|
|
}
|
|
|
|
ImageSlotRange AllocateImageSlots(std::uint16_t count) {
|
|
if (imageNext + count > imageCapacity) {
|
|
throw std::runtime_error(std::format("DescriptorHeapVulkan: out of image slots ({} requested, {} remaining of {})", count, imageCapacity - imageNext, imageCapacity));
|
|
}
|
|
ImageSlotRange r{imageNext, count};
|
|
imageNext += count;
|
|
return r;
|
|
}
|
|
|
|
BufferSlotRange AllocateBufferSlots(std::uint16_t count) {
|
|
if (bufferNext + count > bufferCapacity) {
|
|
throw std::runtime_error(std::format("DescriptorHeapVulkan: out of buffer slots ({} requested, {} remaining of {})", count, bufferCapacity - bufferNext, bufferCapacity));
|
|
}
|
|
BufferSlotRange r{bufferNext, count};
|
|
bufferNext += count;
|
|
return r;
|
|
}
|
|
|
|
SamplerSlotRange AllocateSamplerSlots(std::uint16_t count) {
|
|
if (samplerNext + count > samplerCapacity) {
|
|
throw std::runtime_error(std::format("DescriptorHeapVulkan: out of sampler slots ({} requested, {} remaining of {})", count, samplerCapacity - samplerNext, samplerCapacity));
|
|
}
|
|
SamplerSlotRange r{samplerNext, count};
|
|
samplerNext += count;
|
|
return r;
|
|
}
|
|
|
|
std::uint32_t ImageByteOffset(std::uint16_t firstElement) const {
|
|
return firstElement * Device::descriptorHeapProperties.imageDescriptorSize;
|
|
}
|
|
std::uint32_t BufferByteOffset(std::uint16_t firstElement) const {
|
|
return bufferStartOffset + firstElement * Device::descriptorHeapProperties.bufferDescriptorSize;
|
|
}
|
|
std::uint32_t SamplerByteOffset(std::uint16_t firstElement) const {
|
|
return firstElement * Device::descriptorHeapProperties.samplerDescriptorSize;
|
|
}
|
|
|
|
inline static std::uint32_t GetBufferOffset(std::uint16_t images, std::uint16_t buffers) {
|
|
std::uint32_t bufferStartElement = images * Device::descriptorHeapProperties.imageDescriptorSize / Device::descriptorHeapProperties.bufferDescriptorSize;
|
|
|
|
if(images > 0 && bufferStartElement == 0) {
|
|
bufferStartElement = 1;
|
|
}
|
|
return bufferStartElement * Device::descriptorHeapProperties.bufferDescriptorSize;
|
|
}
|
|
inline static std::uint16_t GetBufferOffsetElement(std::uint16_t images, std::uint16_t buffers) {
|
|
std::uint16_t bufferStartElement = images * Device::descriptorHeapProperties.imageDescriptorSize / Device::descriptorHeapProperties.bufferDescriptorSize;
|
|
|
|
if(images > 0 && bufferStartElement == 0) {
|
|
bufferStartElement = 1;
|
|
}
|
|
|
|
return bufferStartElement;
|
|
}
|
|
};
|
|
} |