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MobileGL/MobileGL/MG_Backend/DirectVulkan/Renderer/VkTextureSamplerManager.h
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// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/VkTextureSamplerManager.h
// Copyright (c) 2025-2026 MobileGL-Dev
// Licensed under the GNU Lesser General Public License v3.0:
// https://www.gnu.org/licenses/gpl-3.0.txt
// https://www.gnu.org/licenses/lgpl-3.0.txt
// SPDX-License-Identifier: LGPL-3.0-only
// End of Source File Header
#pragma once
#include "../VkIncludes.h"
#include "../VulkanRendererConfig.h"
#include <Includes.h>
#include <MG_State/GLState/SamplerState/SamplerObject.h>
#include <MG_State/GLState/TextureState/TextureObject.h>
#include <vk_mem_alloc.h>
namespace MobileGL::MG_State::GLState {
class ITextureObject;
class SamplerObject;
}
namespace MobileGL::MG_Backend::DirectVulkan {
class VkTextureSamplerManager {
public:
struct InitInfo {
VkDevice device = VK_NULL_HANDLE;
VkPhysicalDevice physicalDevice = VK_NULL_HANDLE;
VmaAllocator allocator = nullptr;
VkCommandPool commandPool = VK_NULL_HANDLE;
VkQueue graphicsQueue = VK_NULL_HANDLE;
const VulkanRendererConfig* config = nullptr;
};
Bool Initialize(const InitInfo& initInfo);
void Shutdown();
Bool SyncTextureAndGetDescriptor(const MG_State::GLState::ITextureObject& texture,
const MG_State::GLState::SamplerObject* samplerOverride,
VkDescriptorImageInfo& outImageInfo);
private:
struct TextureResource {
VkImage image = VK_NULL_HANDLE;
VmaAllocation allocation = nullptr;
VkImageView view = VK_NULL_HANDLE;
VkImageLayout layout = VK_IMAGE_LAYOUT_UNDEFINED;
VkExtent2D extent = {0, 0};
VkFormat format = VK_FORMAT_UNDEFINED;
Uint textureExternalIndex = 0;
};
struct SamplerCacheEntry {
VkSampler handle = VK_NULL_HANDLE;
Uint externalIndex = 0;
Uint16 version = 0;
};
Bool EnsureTextureSynced(TextureResource& resource, const MG_State::GLState::ITextureObject& texture);
Bool EnsureTextureResource(TextureResource& resource, const MG_State::GLState::ITextureObject& texture,
TextureUploadTarget level0Target, const IntVec3& texelSize, SizeT byteSize);
Bool UploadLevel0(TextureResource& resource, const MG_State::GLState::TextureObjectMipmap& mipmapTexture,
TextureUploadTarget level0Target, SizeT byteSize);
Bool ExecuteImmediate(const std::function<void(VkCommandBuffer)>& recorder) const;
void DestroyTextureResource(TextureResource& resource) const;
static Bool ResolveLevel0(const MG_State::GLState::ITextureObject& texture, TextureUploadTarget& outTarget,
IntVec3& outTexelSize, SizeT& outByteSize);
static VkFormat ResolveTextureFormat(TextureInternalFormat format);
Uint64 BuildSamplerKey(const MG_State::GLState::SamplerObject& sampler) const;
VkSampler GetOrCreateSampler(const MG_State::GLState::SamplerObject& sampler);
static VkFilter ToVkFilter(SamplerFilterMode mode);
static VkSamplerMipmapMode ToVkMipmapMode(SamplerMipmapMode mode);
static VkSamplerAddressMode ToVkAddressMode(SamplerWrapMode mode);
static VkCompareOp ToVkCompareOp(SamplerCompareFunc func);
VkDevice m_device = VK_NULL_HANDLE;
VkPhysicalDevice m_physicalDevice = VK_NULL_HANDLE;
VmaAllocator m_allocator = nullptr;
VkCommandPool m_commandPool = VK_NULL_HANDLE;
VkQueue m_graphicsQueue = VK_NULL_HANDLE;
const VulkanRendererConfig* m_config = nullptr;
UnorderedMap<Uint, TextureResource> m_textureResources;
UnorderedMap<Uint64, SamplerCacheEntry> m_samplers;
static inline XXH64_state_t* m_hashState = XXH64_createState();
};
} // namespace MobileGL::MG_Backend::DirectVulkan