forked from dolphin-emu/dolphin
		
	
		
			
				
	
	
		
			96 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			96 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
// Copyright 2017 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <cstddef>
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#include <string>
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#include <utility>
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#include <vector>
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#include "Common/CommonTypes.h"
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#include "VideoCommon/RenderState.h"
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#include "VideoCommon/TextureConfig.h"
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class AbstractShader;
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class NativeVertexFormat;
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// We use three pipeline usages:
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//   - GX
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//       - Per-stage UBO (VS/GS/PS, VS constants accessible from PS)
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//       - 8 combined image samplers (accessible from PS)
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//       - 1 SSBO, accessible from PS if bounding box is enabled
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//   - Utility
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//       - Single UBO, accessible from all stages [set=0, binding=1]
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//       - 8 combined image samplers (accessible from PS) [set=1, binding=0-7]
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//       - 1 texel buffer, accessible from PS [set=2, binding=0]
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//   - Compute
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//       - 1 uniform buffer [set=0, binding=1]
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//       - 8 combined image samplers [set=1, binding=0-7]
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//       - 1 texel buffer [set=2, binding=0]
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//       - 1 storage image [set=3, binding=0]
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enum class AbstractPipelineUsage
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{
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  GX,
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  Utility
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};
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struct AbstractPipelineConfig
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{
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  const NativeVertexFormat* vertex_format;
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  const AbstractShader* vertex_shader;
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  const AbstractShader* geometry_shader;
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  const AbstractShader* pixel_shader;
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  RasterizationState rasterization_state;
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  DepthState depth_state;
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  BlendingState blending_state;
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  union FramebufferState
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  {
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    BitField<0, 8, AbstractTextureFormat> color_texture_format;
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    BitField<8, 8, AbstractTextureFormat> depth_texture_format;
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    BitField<16, 8, u32> samples;
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    BitField<24, 1, u32> per_sample_shading;
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    bool operator==(const FramebufferState& rhs) const { return hex == rhs.hex; }
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    bool operator!=(const FramebufferState& rhs) const { return hex != rhs.hex; }
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    FramebufferState& operator=(const FramebufferState& rhs)
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    {
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      hex = rhs.hex;
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      return *this;
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    }
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    u32 hex;
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  } framebuffer_state;
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  AbstractPipelineUsage usage;
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  bool operator==(const AbstractPipelineConfig& rhs) const
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  {
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    return std::tie(vertex_format, vertex_shader, geometry_shader, pixel_shader,
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                    rasterization_state.hex, depth_state.hex, blending_state.hex,
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                    framebuffer_state.hex, usage) ==
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           std::tie(rhs.vertex_format, rhs.vertex_shader, rhs.geometry_shader, rhs.pixel_shader,
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                    rhs.rasterization_state.hex, rhs.depth_state.hex, rhs.blending_state.hex,
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                    rhs.framebuffer_state.hex, rhs.usage);
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  }
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  bool operator!=(const AbstractPipelineConfig& rhs) const { return !operator==(rhs); }
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  bool operator<(const AbstractPipelineConfig& rhs) const
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  {
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    return std::tie(vertex_format, vertex_shader, geometry_shader, pixel_shader,
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                    rasterization_state.hex, depth_state.hex, blending_state.hex,
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                    framebuffer_state.hex, usage) <
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           std::tie(rhs.vertex_format, rhs.vertex_shader, rhs.geometry_shader, rhs.pixel_shader,
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                    rhs.rasterization_state.hex, rhs.depth_state.hex, rhs.blending_state.hex,
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                    rhs.framebuffer_state.hex, rhs.usage);
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  }
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};
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class AbstractPipeline
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{
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public:
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  AbstractPipeline() = default;
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  virtual ~AbstractPipeline() = default;
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};
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