Files
MapLibreParticleLab/include/mbgl/vulkan/buffer_resource.hpp
Adrian Cojocaru 1b6ed35426 Vulkan fill extrusion instancing [Core optimization] (#4310)
Co-authored-by: Alex Cristici <alex.cristici@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Bart Louwers <bart@emeel.net>
2026-06-06 01:06:59 +02:00

93 lines
2.8 KiB
C++

#pragma once
#include <mbgl/vulkan/renderer_backend.hpp>
#include <cstddef>
#include <cstdint>
#include <vector>
namespace mbgl {
namespace vulkan {
class Context;
struct BufferAllocation {
const VmaAllocator& allocator;
VmaAllocation allocation{};
vk::Buffer buffer{};
void* mappedBuffer{};
BufferAllocation() = delete;
BufferAllocation(BufferAllocation&) = delete;
BufferAllocation& operator=(const BufferAllocation& other) = delete;
BufferAllocation(BufferAllocation&& other) = default;
BufferAllocation(const VmaAllocator& allocator_)
: allocator(allocator_) {}
~BufferAllocation() { destroy(); }
bool create(const VmaAllocationCreateInfo& allocInfo, const vk::BufferCreateInfo& bufferInfo);
void destroy();
void setName(const std::string& name) const;
};
using UniqueBufferAllocation = std::unique_ptr<BufferAllocation>;
using SharedBufferAllocation = std::shared_ptr<BufferAllocation>;
class BufferResource {
public:
BufferResource() noexcept = delete;
BufferResource(Context& context_, const void* raw, std::size_t size, std::uint32_t usage, bool persistent);
BufferResource(BufferResource&&) noexcept;
virtual ~BufferResource() noexcept;
BufferResource& operator=(BufferResource&&) noexcept;
BufferResource clone() const;
BufferResource shared() const;
void destroy(bool deferred = true);
void update(const void* data, std::size_t size, std::size_t offset) noexcept;
std::size_t getSizeInBytes() const noexcept { return size; }
const void* contents() const noexcept;
const void* contents(uint8_t resourceIndex) const noexcept;
Context& getContext() const noexcept { return context; }
const vk::Buffer& getVulkanBuffer() const noexcept { return bufferAllocation->buffer; }
std::size_t getVulkanBufferOffset() const noexcept;
std::size_t getVulkanBufferOffset(uint8_t resourceIndex) const noexcept;
// update the current sub-buffer with the latest data
void updateVulkanBuffer();
void updateVulkanBuffer(const int8_t destination, const uint8_t source);
bool isValid() const noexcept { return !!bufferAllocation; }
operator bool() const noexcept { return isValid(); }
bool operator!() const noexcept { return !isValid(); }
using VersionType = std::uint16_t;
/// Used to detect whether buffer contents have changed
VersionType getVersion() const noexcept { return version; }
protected:
BufferResource(const BufferResource&) noexcept;
protected:
Context& context;
std::size_t size;
std::uint32_t usage;
VersionType version = 0;
bool persistent;
SharedBufferAllocation bufferAllocation;
size_t bufferWindowSize = 0;
std::vector<VersionType> bufferWindowVersions;
};
} // namespace vulkan
} // namespace mbgl