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Diffstat (limited to '')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_gen.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_gen.h b/src/video_core/renderer_opengl/gl_shader_gen.h deleted file mode 100644 index 2302ae453..000000000 --- a/src/video_core/renderer_opengl/gl_shader_gen.h +++ /dev/null @@ -1,162 +0,0 @@ -// Copyright 2015 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <array> -#include <cstring> -#include <functional> -#include <string> -#include <type_traits> -#include "video_core/regs.h" - -namespace GLShader { - -enum Attributes { - ATTRIBUTE_POSITION, - ATTRIBUTE_COLOR, - ATTRIBUTE_TEXCOORD0, - ATTRIBUTE_TEXCOORD1, - ATTRIBUTE_TEXCOORD2, - ATTRIBUTE_TEXCOORD0_W, - ATTRIBUTE_NORMQUAT, - ATTRIBUTE_VIEW, -}; - -/** - * This struct contains all state used to generate the GLSL shader program that emulates the current - * Pica register configuration. This struct is used as a cache key for generated GLSL shader - * programs. The functions in gl_shader_gen.cpp should retrieve state from this struct only, not by - * directly accessing Pica registers. This should reduce the risk of bugs in shader generation where - * Pica state is not being captured in the shader cache key, thereby resulting in (what should be) - * two separate shaders sharing the same key. - * - * We use a union because "implicitly-defined copy/move constructor for a union X copies the object - * representation of X." and "implicitly-defined copy assignment operator for a union X copies the - * object representation (3.9) of X." = Bytewise copy instead of memberwise copy. This is important - * because the padding bytes are included in the hash and comparison between objects. - */ -union PicaShaderConfig { - - /// Construct a PicaShaderConfig with the given Pica register configuration. - static PicaShaderConfig BuildFromRegs(const Pica::Regs& regs); - - bool TevStageUpdatesCombinerBufferColor(unsigned stage_index) const { - return (stage_index < 4) && (state.combiner_buffer_input & (1 << stage_index)); - } - - bool TevStageUpdatesCombinerBufferAlpha(unsigned stage_index) const { - return (stage_index < 4) && ((state.combiner_buffer_input >> 4) & (1 << stage_index)); - } - - bool operator==(const PicaShaderConfig& o) const { - return std::memcmp(&state, &o.state, sizeof(PicaShaderConfig::State)) == 0; - }; - - // NOTE: MSVC15 (Update 2) doesn't think `delete`'d constructors and operators are TC. - // This makes BitField not TC when used in a union or struct so we have to resort - // to this ugly hack. - // Once that bug is fixed we can use Pica::Regs::TevStageConfig here. - // Doesn't include const_color because we don't sync it, see comment in BuildFromRegs() - struct TevStageConfigRaw { - u32 sources_raw; - u32 modifiers_raw; - u32 ops_raw; - u32 scales_raw; - explicit operator Pica::TexturingRegs::TevStageConfig() const noexcept { - Pica::TexturingRegs::TevStageConfig stage; - stage.sources_raw = sources_raw; - stage.modifiers_raw = modifiers_raw; - stage.ops_raw = ops_raw; - stage.const_color = 0; - stage.scales_raw = scales_raw; - return stage; - } - }; - - struct State { - Pica::FramebufferRegs::CompareFunc alpha_test_func; - Pica::RasterizerRegs::ScissorMode scissor_test_mode; - Pica::TexturingRegs::TextureConfig::TextureType texture0_type; - bool texture2_use_coord1; - std::array<TevStageConfigRaw, 6> tev_stages; - u8 combiner_buffer_input; - - Pica::RasterizerRegs::DepthBuffering depthmap_enable; - Pica::TexturingRegs::FogMode fog_mode; - bool fog_flip; - - struct { - struct { - unsigned num; - bool directional; - bool two_sided_diffuse; - bool dist_atten_enable; - bool spot_atten_enable; - bool geometric_factor_0; - bool geometric_factor_1; - } light[8]; - - bool enable; - unsigned src_num; - Pica::LightingRegs::LightingBumpMode bump_mode; - unsigned bump_selector; - bool bump_renorm; - bool clamp_highlights; - - Pica::LightingRegs::LightingConfig config; - Pica::LightingRegs::LightingFresnelSelector fresnel_selector; - - struct { - bool enable; - bool abs_input; - Pica::LightingRegs::LightingLutInput type; - float scale; - } lut_d0, lut_d1, lut_sp, lut_fr, lut_rr, lut_rg, lut_rb; - } lighting; - - struct { - bool enable; - u32 coord; - Pica::TexturingRegs::ProcTexClamp u_clamp, v_clamp; - Pica::TexturingRegs::ProcTexCombiner color_combiner, alpha_combiner; - bool separate_alpha; - bool noise_enable; - Pica::TexturingRegs::ProcTexShift u_shift, v_shift; - u32 lut_width; - u32 lut_offset; - Pica::TexturingRegs::ProcTexFilter lut_filter; - } proctex; - - } state; -}; -#if (__GNUC__ >= 5) || defined(__clang__) || defined(_MSC_VER) -static_assert(std::is_trivially_copyable<PicaShaderConfig::State>::value, - "PicaShaderConfig::State must be trivially copyable"); -#endif - -/** - * Generates the GLSL vertex shader program source code for the current Pica state - * @returns String of the shader source code - */ -std::string GenerateVertexShader(); - -/** - * Generates the GLSL fragment shader program source code for the current Pica state - * @param config ShaderCacheKey object generated for the current Pica state, used for the shader - * configuration (NOTE: Use state in this struct only, not the Pica registers!) - * @returns String of the shader source code - */ -std::string GenerateFragmentShader(const PicaShaderConfig& config); - -} // namespace GLShader - -namespace std { -template <> -struct hash<GLShader::PicaShaderConfig> { - size_t operator()(const GLShader::PicaShaderConfig& k) const { - return Common::ComputeHash64(&k.state, sizeof(GLShader::PicaShaderConfig::State)); - } -}; -} // namespace std |