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MobileGL/MobileGL/MG_Backend/DirectVulkan/Renderer/ProgramFactory.h
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// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/ProgramFactory.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 "MG_State/GLState/ProgramState/ProgramObject.h"
#include "MG_State/GLState/ProgramState/ShaderObject.h"
#include "MG_State/GLState/TextureState/TextureEnum.h"
#include <Includes.h>
#include <spirv_reflect.h>
namespace MobileGL::MG_Backend::DirectVulkan {
enum class SamplerNumericDomain : Uint8 {
Unknown = 0,
Float,
SignedInteger,
UnsignedInteger,
};
class ProgramFactory {
public:
enum class DescriptorBindingKind : Uint8 {
None = 0,
UniformBufferDynamic,
CombinedImageSampler,
UniformTexelBuffer,
StorageBuffer,
StorageImage
};
enum class CompileOptionBit : Uint {
None = 0,
PositionYFlip = 1 << 0,
PositionZRemap = 1 << 1,
SurfaceRotate90 = 1 << 2,
SurfaceRotate180 = 1 << 3,
SurfaceRotate270 = 1 << 4,
};
using CompileOptionFlags = Flags<CompileOptionBit>;
using HashType = Uint64;
struct VkProgramObject {
static constexpr Uint32 kMaxVertexInputLocations = 32;
HashType hash = 0;
Vector<VkPipelineShaderStageCreateInfo> stages;
Vector<VkShaderModule> modules;
// Layout data (previously in separate VkProgramLayout)
VkDescriptorSetLayout descriptorSetLayout = VK_NULL_HANDLE;
VkPipelineLayout pipelineLayout = VK_NULL_HANDLE;
Vector<DescriptorBindingKind> bindingKinds;
Vector<Uint32> dynamicBindings;
Vector<Int> uniformBlockIndexByBinding;
Vector<String> samplerNameByBinding;
Vector<Int> samplerUniformLocationByBinding;
Vector<TextureTarget> samplerTextureTargetByBinding;
Vector<SamplerNumericDomain> samplerNumericDomainByBinding;
Vector<VkFormat> storageImageFormatByBinding;
Vector<Bool> storageImageUsesBindingFormatByBinding;
Vector<String> storageBlockNameByBinding;
Vector<Int> storageBlockIndexByBinding;
Int globalUboBinding = -1;
Uint32 activeVertexInputLocationMask = 0;
Array<GLenum, kMaxVertexInputLocations> vertexInputTypes{};
Uint32 activeFragmentOutputLocationMask = 0;
Array<GLenum, kMaxVertexInputLocations> fragmentOutputTypes{};
ShaderStage rasterizationProducerStage = ShaderStage::Unknown;
Uint32 producerOutputComponentCount = 0;
Uint32 fragmentInputComponentCount = 0;
static inline VkDevice s_device = VK_NULL_HANDLE;
VkProgramObject() = default;
VkProgramObject(const VkProgramObject&) = delete;
VkProgramObject& operator=(const VkProgramObject&) = delete;
VkProgramObject(VkProgramObject&& other) noexcept {
hash = other.hash;
stages = std::move(other.stages);
modules = std::move(other.modules);
descriptorSetLayout = other.descriptorSetLayout;
pipelineLayout = other.pipelineLayout;
bindingKinds = std::move(other.bindingKinds);
dynamicBindings = std::move(other.dynamicBindings);
uniformBlockIndexByBinding = std::move(other.uniformBlockIndexByBinding);
samplerNameByBinding = std::move(other.samplerNameByBinding);
samplerUniformLocationByBinding = std::move(other.samplerUniformLocationByBinding);
samplerTextureTargetByBinding = std::move(other.samplerTextureTargetByBinding);
samplerNumericDomainByBinding = std::move(other.samplerNumericDomainByBinding);
storageImageFormatByBinding = std::move(other.storageImageFormatByBinding);
storageImageUsesBindingFormatByBinding =
std::move(other.storageImageUsesBindingFormatByBinding);
storageBlockNameByBinding = std::move(other.storageBlockNameByBinding);
storageBlockIndexByBinding = std::move(other.storageBlockIndexByBinding);
globalUboBinding = other.globalUboBinding;
activeVertexInputLocationMask = other.activeVertexInputLocationMask;
vertexInputTypes = other.vertexInputTypes;
activeFragmentOutputLocationMask = other.activeFragmentOutputLocationMask;
fragmentOutputTypes = other.fragmentOutputTypes;
rasterizationProducerStage = other.rasterizationProducerStage;
producerOutputComponentCount = other.producerOutputComponentCount;
fragmentInputComponentCount = other.fragmentInputComponentCount;
other.hash = 0;
other.descriptorSetLayout = VK_NULL_HANDLE;
other.pipelineLayout = VK_NULL_HANDLE;
other.globalUboBinding = -1;
other.activeVertexInputLocationMask = 0;
other.activeFragmentOutputLocationMask = 0;
other.rasterizationProducerStage = ShaderStage::Unknown;
other.producerOutputComponentCount = 0;
other.fragmentInputComponentCount = 0;
}
VkProgramObject& operator=(VkProgramObject&& other) noexcept {
if (this == &other) {
return *this;
}
Destroy();
hash = other.hash;
stages = std::move(other.stages);
modules = std::move(other.modules);
descriptorSetLayout = other.descriptorSetLayout;
pipelineLayout = other.pipelineLayout;
bindingKinds = std::move(other.bindingKinds);
dynamicBindings = std::move(other.dynamicBindings);
uniformBlockIndexByBinding = std::move(other.uniformBlockIndexByBinding);
samplerNameByBinding = std::move(other.samplerNameByBinding);
samplerUniformLocationByBinding = std::move(other.samplerUniformLocationByBinding);
samplerTextureTargetByBinding = std::move(other.samplerTextureTargetByBinding);
samplerNumericDomainByBinding = std::move(other.samplerNumericDomainByBinding);
storageImageFormatByBinding = std::move(other.storageImageFormatByBinding);
storageImageUsesBindingFormatByBinding =
std::move(other.storageImageUsesBindingFormatByBinding);
storageBlockNameByBinding = std::move(other.storageBlockNameByBinding);
storageBlockIndexByBinding = std::move(other.storageBlockIndexByBinding);
globalUboBinding = other.globalUboBinding;
activeVertexInputLocationMask = other.activeVertexInputLocationMask;
vertexInputTypes = other.vertexInputTypes;
activeFragmentOutputLocationMask = other.activeFragmentOutputLocationMask;
fragmentOutputTypes = other.fragmentOutputTypes;
rasterizationProducerStage = other.rasterizationProducerStage;
producerOutputComponentCount = other.producerOutputComponentCount;
fragmentInputComponentCount = other.fragmentInputComponentCount;
other.hash = 0;
other.descriptorSetLayout = VK_NULL_HANDLE;
other.pipelineLayout = VK_NULL_HANDLE;
other.globalUboBinding = -1;
other.activeVertexInputLocationMask = 0;
other.activeFragmentOutputLocationMask = 0;
other.rasterizationProducerStage = ShaderStage::Unknown;
other.producerOutputComponentCount = 0;
other.fragmentInputComponentCount = 0;
return *this;
}
~VkProgramObject() {
Destroy();
}
private:
void Destroy() {
if (s_device != VK_NULL_HANDLE) {
if (pipelineLayout != VK_NULL_HANDLE) {
vkDestroyPipelineLayout(s_device, pipelineLayout, nullptr);
pipelineLayout = VK_NULL_HANDLE;
}
if (descriptorSetLayout != VK_NULL_HANDLE) {
vkDestroyDescriptorSetLayout(s_device, descriptorSetLayout, nullptr);
descriptorSetLayout = VK_NULL_HANDLE;
}
for (auto module : modules) {
if (module != VK_NULL_HANDLE) {
vkDestroyShaderModule(s_device, module, nullptr);
}
}
}
modules.clear();
stages.clear();
}
};
explicit ProgramFactory(VkDevice device, const VulkanRendererConfig& config, Uint32 maxBindings = 16,
Bool shaderDrawParametersEnabled = false,
Bool unformattedFloatStorageImagesEnabled = false)
: m_device(device), m_maxBindings(maxBindings), m_config(config),
m_shaderDrawParametersEnabled(shaderDrawParametersEnabled),
m_unformattedFloatStorageImagesEnabled(unformattedFloatStorageImagesEnabled) {
VkProgramObject::s_device = device;
}
~ProgramFactory() = default;
ProgramFactory(const ProgramFactory&) = delete;
HashType ComputeHash(const MG_State::GLState::ProgramObject& program, CompileOptionFlags flags) const;
const VkProgramObject& GetOrCreateProgram(
const MG_State::GLState::ProgramObject& program, CompileOptionFlags flags);
static VkShaderStageFlagBits ToVkStage(ShaderStage stage);
static VkFormat ConvertSpirvImageFormatToVkFormat(SpvImageFormat format);
static SamplerNumericDomain UniformTypeToSamplerNumericDomain(GLenum glType);
private:
struct ProgramLookupCache {
const MG_State::GLState::ProgramObject* program = nullptr;
Uint32 backendStateVersion = 0;
CompileOptionFlags flags{};
HashType hash = 0;
};
static TextureTarget UniformTypeToTextureTarget(GLenum glType);
void ReflectVertexInputs(const Vector<SharedPtr<MG_State::GLState::ShaderObject>>& shaders,
const Vector<Vector<Uint>>& spirv,
VkProgramObject& entry) const;
void ReflectFragmentOutputs(const Vector<SharedPtr<MG_State::GLState::ShaderObject>>& shaders,
const Vector<Vector<Uint>>& spirv,
VkProgramObject& entry) const;
void ReflectLayout(const MG_State::GLState::ProgramObject& program, const Vector<Vector<Uint>>& spirv,
VkProgramObject& entry) const;
VkDevice m_device = VK_NULL_HANDLE;
Uint32 m_maxBindings = 0;
UnorderedMap<HashType, VkProgramObject> m_cache;
const VulkanRendererConfig& m_config;
// True when the device enabled shaderDrawParameters; gates the InstanceIndex rebase pass
// (which needs the DrawParameters capability / gl_BaseInstance builtin).
Bool m_shaderDrawParametersEnabled = false;
// True only when the logical device enabled both
// shaderStorageImageReadWithoutFormat and shaderStorageImageWriteWithoutFormat.
Bool m_unformattedFloatStorageImagesEnabled = false;
mutable ProgramLookupCache m_lastLookup;
static inline XXH64_state_t* m_hashState = XXH64_createState();
};
} // namespace MobileGL::MG_Backend::DirectVulkan