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// Copyright 2016 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <cstddef>
#include <map>
#include <memory>
#include <string>
#include <unordered_map>
#include <utility>
#include "Common/CommonTypes.h"
#include "Common/LinearDiskCache.h"
#include "VideoBackends/Vulkan/Constants.h"
#include "VideoBackends/Vulkan/ObjectCache.h"
#include "VideoBackends/Vulkan/ShaderCompiler.h"
#include "VideoCommon/RenderState.h"
namespace Vulkan
{
class CommandBufferManager;
class VertexFormat;
class StreamBuffer;
struct PipelineInfo
{
// These are packed in descending order of size, to avoid any padding so that the structure
// can be copied/compared as a single block of memory. 64-bit pointer size is assumed.
const VertexFormat* vertex_format;
VkPipelineLayout pipeline_layout;
VkShaderModule vs;
VkShaderModule gs;
VkShaderModule ps;
VkRenderPass render_pass;
BlendingState blend_state;
RasterizationState rasterization_state;
DepthState depth_state;
MultisamplingState multisampling_state;
};
struct PipelineInfoHash
{
std::size_t operator()(const PipelineInfo& key) const;
};
bool operator==(const PipelineInfo& lhs, const PipelineInfo& rhs);
bool operator!=(const PipelineInfo& lhs, const PipelineInfo& rhs);
bool operator<(const PipelineInfo& lhs, const PipelineInfo& rhs);
bool operator>(const PipelineInfo& lhs, const PipelineInfo& rhs);
struct ComputePipelineInfo
{
VkPipelineLayout pipeline_layout;
VkShaderModule cs;
};
struct ComputePipelineInfoHash
{
std::size_t operator()(const ComputePipelineInfo& key) const;
};
bool operator==(const ComputePipelineInfo& lhs, const ComputePipelineInfo& rhs);
bool operator!=(const ComputePipelineInfo& lhs, const ComputePipelineInfo& rhs);
bool operator<(const ComputePipelineInfo& lhs, const ComputePipelineInfo& rhs);
bool operator>(const ComputePipelineInfo& lhs, const ComputePipelineInfo& rhs);
class ShaderCache
{
public:
ShaderCache();
~ShaderCache();
// Get utility shader header based on current config.
std::string GetUtilityShaderHeader() const;
// Perform at startup, create descriptor layouts, compiles all static shaders.
bool Initialize();
void Shutdown();
// Creates a pipeline for the specified description. The resulting pipeline, if successful
// is not stored anywhere, this is left up to the caller.
VkPipeline CreatePipeline(const PipelineInfo& info);
// Find a pipeline by the specified description, if not found, attempts to create it.
VkPipeline GetPipeline(const PipelineInfo& info);
// Creates a compute pipeline, and does not track the handle.
VkPipeline CreateComputePipeline(const ComputePipelineInfo& info);
// Find a pipeline by the specified description, if not found, attempts to create it
VkPipeline GetComputePipeline(const ComputePipelineInfo& info);
// Clears our pipeline cache of all objects. This is necessary when recompiling shaders,
// as drivers are free to return the same pointer again, which means that we may end up using
// and old pipeline object if they are not cleared first. Some stutter may be experienced
// while our cache is rebuilt on use, but the pipeline cache object should mitigate this.
// NOTE: Ensure that none of these objects are in use before calling.
void ClearPipelineCache();
// Saves the pipeline cache to disk. Call when shutting down.
void SavePipelineCache();
// Recompile shared shaders, call when stereo mode changes.
void RecompileSharedShaders();
// Reload pipeline cache. This will destroy all pipelines.
void ReloadPipelineCache();
// Shared shader accessors
VkShaderModule GetScreenQuadVertexShader() const { return m_screen_quad_vertex_shader; }
VkShaderModule GetPassthroughVertexShader() const { return m_passthrough_vertex_shader; }
VkShaderModule GetScreenQuadGeometryShader() const { return m_screen_quad_geometry_shader; }
VkShaderModule GetPassthroughGeometryShader() const { return m_passthrough_geometry_shader; }
private:
bool CreatePipelineCache();
bool LoadPipelineCache();
bool ValidatePipelineCache(const u8* data, size_t data_length);
void DestroyPipelineCache();
bool CompileSharedShaders();
void DestroySharedShaders();
std::unordered_map<PipelineInfo, VkPipeline, PipelineInfoHash> m_pipeline_objects;
std::unordered_map<ComputePipelineInfo, VkPipeline, ComputePipelineInfoHash>
m_compute_pipeline_objects;
VkPipelineCache m_pipeline_cache = VK_NULL_HANDLE;
std::string m_pipeline_cache_filename;
// Utility/shared shaders
VkShaderModule m_screen_quad_vertex_shader = VK_NULL_HANDLE;
VkShaderModule m_passthrough_vertex_shader = VK_NULL_HANDLE;
VkShaderModule m_screen_quad_geometry_shader = VK_NULL_HANDLE;
VkShaderModule m_passthrough_geometry_shader = VK_NULL_HANDLE;
};
extern std::unique_ptr<ShaderCache> g_shader_cache;
} // namespace Vulkan
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