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https://github.com/RetroDECK/Duckstation.git
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69 lines
3.1 KiB
C++
69 lines
3.1 KiB
C++
// SPDX-FileCopyrightText: 2019-2023 Connor McLaughlin <stenzek@gmail.com>
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// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
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#pragma once
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#include "gpu_device.h"
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#include <sstream>
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#include <string>
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class ShaderGen
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{
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public:
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ShaderGen(RenderAPI render_api, bool supports_dual_source_blend, bool supports_framebuffer_fetch);
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~ShaderGen();
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static bool UseGLSLBindingLayout();
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std::string GenerateScreenQuadVertexShader();
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std::string GenerateUVQuadVertexShader();
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std::string GenerateFillFragmentShader();
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std::string GenerateCopyFragmentShader();
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std::string GenerateImGuiVertexShader();
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std::string GenerateImGuiFragmentShader();
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protected:
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ALWAYS_INLINE bool IsVulkan() const { return (m_render_api == RenderAPI::Vulkan); }
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ALWAYS_INLINE bool IsMetal() const { return (m_render_api == RenderAPI::Metal); }
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const char* GetInterpolationQualifier(bool interface_block, bool centroid_interpolation, bool sample_interpolation,
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bool is_out) const;
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#ifdef ENABLE_OPENGL
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void SetGLSLVersionString();
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#endif
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void DefineMacro(std::stringstream& ss, const char* name, bool enabled);
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void DefineMacro(std::stringstream& ss, const char* name, s32 value);
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void WriteHeader(std::stringstream& ss);
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void WriteUniformBufferDeclaration(std::stringstream& ss, bool push_constant_on_vulkan);
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void DeclareUniformBuffer(std::stringstream& ss, const std::initializer_list<const char*>& members,
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bool push_constant_on_vulkan);
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void DeclareTexture(std::stringstream& ss, const char* name, u32 index, bool multisampled = false,
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bool is_int = false, bool is_unsigned = false);
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void DeclareTextureBuffer(std::stringstream& ss, const char* name, u32 index, bool is_int, bool is_unsigned);
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void DeclareVertexEntryPoint(std::stringstream& ss, const std::initializer_list<const char*>& attributes,
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u32 num_color_outputs, u32 num_texcoord_outputs,
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const std::initializer_list<std::pair<const char*, const char*>>& additional_outputs,
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bool declare_vertex_id = false, const char* output_block_suffix = "", bool msaa = false,
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bool ssaa = false, bool noperspective_color = false);
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void DeclareFragmentEntryPoint(std::stringstream& ss, u32 num_color_inputs, u32 num_texcoord_inputs,
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const std::initializer_list<std::pair<const char*, const char*>>& additional_inputs,
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bool declare_fragcoord = false, u32 num_color_outputs = 1, bool depth_output = false,
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bool msaa = false, bool ssaa = false, bool declare_sample_id = false,
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bool noperspective_color = false, bool framebuffer_fetch = false);
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RenderAPI m_render_api;
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bool m_glsl;
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bool m_spirv;
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bool m_supports_dual_source_blend;
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bool m_supports_framebuffer_fetch;
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bool m_use_glsl_interface_blocks;
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bool m_use_glsl_binding_layout;
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bool m_has_uniform_buffer = false;
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std::string m_glsl_version_string;
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};
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