mirror of https://github.com/AxioDL/metaforce.git
245 lines
8.6 KiB
C++
245 lines
8.6 KiB
C++
#pragma once
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#include "common.hpp"
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#include <type_traits>
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#include <variant>
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namespace aurora::gfx::gx {
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constexpr u32 MaxTextures = GX::MAX_TEXMAP;
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constexpr u32 MaxTevStages = GX::MAX_TEVSTAGE;
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constexpr u32 MaxColorChannels = 2; // COLOR0A0, COLOR1A1
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constexpr u32 MaxTevRegs = 3; // TEVREG0-2
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constexpr u32 MaxKColors = GX::MAX_KCOLOR;
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constexpr u32 MaxTexMtx = 10;
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constexpr u32 MaxPTTexMtx = 20;
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constexpr u32 MaxTexCoord = GX::MAX_TEXCOORD;
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constexpr u32 MaxVtxAttr = GX::VA_MAX_ATTR;
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constexpr u32 MaxTevSwap = GX::MAX_TEVSWAP;
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template <typename Arg, Arg Default>
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struct TevPass {
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Arg a = Default;
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Arg b = Default;
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Arg c = Default;
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Arg d = Default;
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bool operator==(const TevPass&) const = default;
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};
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static_assert(std::has_unique_object_representations_v<TevPass<GX::TevColorArg, GX::CC_ZERO>>);
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static_assert(std::has_unique_object_representations_v<TevPass<GX::TevAlphaArg, GX::CA_ZERO>>);
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struct TevOp {
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GX::TevOp op = GX::TevOp::TEV_ADD;
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GX::TevBias bias = GX::TevBias::TB_ZERO;
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GX::TevScale scale = GX::TevScale::CS_SCALE_1;
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GX::TevRegID outReg = GX::TevRegID::TEVPREV;
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bool clamp = true;
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u8 _p1 = 0;
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u8 _p2 = 0;
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u8 _p3 = 0;
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bool operator==(const TevOp&) const = default;
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};
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static_assert(std::has_unique_object_representations_v<TevOp>);
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struct TevStage {
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TevPass<GX::TevColorArg, GX::CC_ZERO> colorPass;
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TevPass<GX::TevAlphaArg, GX::CA_ZERO> alphaPass;
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TevOp colorOp;
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TevOp alphaOp;
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GX::TevKColorSel kcSel = GX::TEV_KCSEL_1;
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GX::TevKAlphaSel kaSel = GX::TEV_KASEL_1;
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GX::TexCoordID texCoordId = GX::TEXCOORD_NULL;
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GX::TexMapID texMapId = GX::TEXMAP_NULL;
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GX::ChannelID channelId = GX::COLOR_NULL;
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GX::TevSwapSel tevSwapRas = GX::TEV_SWAP0;
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GX::TevSwapSel tevSwapTex = GX::TEV_SWAP0;
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bool operator==(const TevStage&) const = default;
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};
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static_assert(std::has_unique_object_representations_v<TevStage>);
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struct TextureBind {
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aurora::gfx::TextureHandle handle;
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metaforce::EClampMode clampMode;
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float lod;
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TextureBind() noexcept = default;
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TextureBind(aurora::gfx::TextureHandle handle, metaforce::EClampMode clampMode, float lod) noexcept
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: handle(std::move(handle)), clampMode(clampMode), lod(lod) {}
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void reset() noexcept { handle.reset(); };
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[[nodiscard]] wgpu::SamplerDescriptor get_descriptor() const noexcept;
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operator bool() const noexcept { return handle; }
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};
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// For shader generation
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struct ColorChannelConfig {
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GX::ColorSrc matSrc = GX::SRC_REG;
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GX::ColorSrc ambSrc = GX::SRC_REG;
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bool lightingEnabled = false;
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u8 _p1 = 0;
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u8 _p2 = 0;
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u8 _p3 = 0;
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bool operator==(const ColorChannelConfig&) const = default;
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};
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static_assert(std::has_unique_object_representations_v<ColorChannelConfig>);
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// For uniform generation
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struct ColorChannelState {
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zeus::CColor matColor;
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zeus::CColor ambColor;
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GX::LightMask lightState;
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};
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using LightVariant = std::variant<std::monostate, Light, zeus::CColor>;
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// Mat4x4 used instead of Mat4x3 for padding purposes
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using TexMtxVariant = std::variant<std::monostate, Mat4x2<float>, Mat4x4<float>>;
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struct TcgConfig {
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GX::TexGenType type = GX::TG_MTX2x4;
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GX::TexGenSrc src = GX::MAX_TEXGENSRC;
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GX::TexMtx mtx = GX::IDENTITY;
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GX::PTTexMtx postMtx = GX::PTIDENTITY;
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bool normalize = false;
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u8 _p1 = 0;
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u8 _p2 = 0;
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u8 _p3 = 0;
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bool operator==(const TcgConfig&) const = default;
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};
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static_assert(std::has_unique_object_representations_v<TcgConfig>);
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struct FogState {
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GX::FogType type = GX::FOG_NONE;
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float startZ = 0.f;
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float endZ = 0.f;
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float nearZ = 0.f;
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float farZ = 0.f;
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zeus::CColor color;
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};
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struct TevSwap {
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GX::TevColorChan red = GX::CH_RED;
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GX::TevColorChan green = GX::CH_GREEN;
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GX::TevColorChan blue = GX::CH_BLUE;
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GX::TevColorChan alpha = GX::CH_ALPHA;
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bool operator==(const TevSwap&) const = default;
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operator bool() const { return *this != TevSwap{}; }
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};
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static_assert(std::has_unique_object_representations_v<TevSwap>);
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struct AlphaCompare {
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GX::Compare comp0 = GX::ALWAYS;
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u32 ref0; // would be u8 but extended to avoid padding bytes
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GX::AlphaOp op = GX::AOP_AND;
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GX::Compare comp1 = GX::ALWAYS;
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u32 ref1;
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bool operator==(const AlphaCompare& other) const = default;
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operator bool() const { return *this != AlphaCompare{}; }
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};
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static_assert(std::has_unique_object_representations_v<AlphaCompare>);
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struct GXState {
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zeus::CMatrix4f mv;
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zeus::CMatrix4f mvInv;
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zeus::CMatrix4f proj;
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FogState fog;
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GX::CullMode cullMode = GX::CULL_BACK;
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GX::BlendMode blendMode = GX::BM_NONE;
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GX::BlendFactor blendFacSrc = GX::BL_SRCALPHA;
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GX::BlendFactor blendFacDst = GX::BL_INVSRCALPHA;
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GX::LogicOp blendOp = GX::LO_CLEAR;
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GX::Compare depthFunc = GX::LEQUAL;
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zeus::CColor clearColor = zeus::skBlack;
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u32 dstAlpha; // u8; UINT32_MAX = disabled
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AlphaCompare alphaCompare;
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std::array<zeus::CColor, MaxTevRegs> colorRegs;
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std::array<zeus::CColor, GX::MAX_KCOLOR> kcolors;
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std::array<ColorChannelConfig, MaxColorChannels> colorChannelConfig;
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std::array<ColorChannelState, MaxColorChannels> colorChannelState;
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std::array<LightVariant, GX::MaxLights> lights;
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std::array<TevStage, MaxTevStages> tevStages;
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std::array<TextureBind, MaxTextures> textures;
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std::array<TexMtxVariant, MaxTexMtx> texMtxs;
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std::array<Mat4x4<float>, MaxPTTexMtx> ptTexMtxs;
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std::array<TcgConfig, MaxTexCoord> tcgs;
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std::array<GX::AttrType, MaxVtxAttr> vtxDesc;
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std::array<TevSwap, MaxTevSwap> tevSwapTable{
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TevSwap{},
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TevSwap{GX::CH_RED, GX::CH_RED, GX::CH_RED, GX::CH_ALPHA},
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TevSwap{GX::CH_GREEN, GX::CH_GREEN, GX::CH_GREEN, GX::CH_ALPHA},
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TevSwap{GX::CH_BLUE, GX::CH_BLUE, GX::CH_BLUE, GX::CH_ALPHA},
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};
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bool depthCompare = true;
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bool depthUpdate = true;
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bool alphaUpdate = true;
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u8 numChans = 0;
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u8 numIndStages = 0;
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u8 numTevStages = 0;
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u8 numTexGens = 0;
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};
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extern GXState g_gxState;
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static inline Mat4x4<float> get_combined_matrix() noexcept { return g_gxState.proj * g_gxState.mv; }
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void shutdown() noexcept;
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const TextureBind& get_texture(GX::TexMapID id) noexcept;
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struct ShaderConfig {
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GX::FogType fogType;
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std::array<GX::AttrType, MaxVtxAttr> vtxAttrs;
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std::array<TevSwap, MaxTevSwap> tevSwapTable;
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std::array<TevStage, MaxTevStages> tevStages;
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u32 tevStageCount = 0;
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std::array<ColorChannelConfig, MaxColorChannels> colorChannels;
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std::array<TcgConfig, MaxTexCoord> tcgs;
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AlphaCompare alphaCompare;
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u32 indexedAttributeCount = 0;
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bool operator==(const ShaderConfig&) const = default;
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};
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static_assert(std::has_unique_object_representations_v<ShaderConfig>);
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constexpr u32 GXPipelineConfigVersion = 1;
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struct PipelineConfig {
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u32 version = GXPipelineConfigVersion;
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ShaderConfig shaderConfig;
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GX::Primitive primitive;
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GX::Compare depthFunc;
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GX::CullMode cullMode;
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GX::BlendMode blendMode;
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GX::BlendFactor blendFacSrc, blendFacDst;
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GX::LogicOp blendOp;
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u32 dstAlpha;
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bool depthCompare, depthUpdate, alphaUpdate;
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u8 _pad = 0;
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};
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static_assert(std::has_unique_object_representations_v<PipelineConfig>);
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struct GXBindGroupLayouts {
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wgpu::BindGroupLayout uniformLayout;
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wgpu::BindGroupLayout samplerLayout;
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wgpu::BindGroupLayout textureLayout;
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};
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struct GXBindGroups {
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BindGroupRef uniformBindGroup;
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BindGroupRef samplerBindGroup;
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BindGroupRef textureBindGroup;
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};
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// Output info from shader generation
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struct ShaderInfo {
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std::bitset<MaxTextures> sampledTextures;
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std::bitset<MaxKColors> sampledKColors;
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std::bitset<MaxColorChannels> sampledColorChannels;
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std::bitset<MaxTevRegs> usesTevReg;
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std::bitset<MaxTexMtx> usesTexMtx;
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std::bitset<MaxPTTexMtx> usesPTTexMtx;
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std::array<GX::TexGenType, MaxTexMtx> texMtxTypes;
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u32 uniformSize = 0;
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bool usesFog : 1 = false;
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};
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struct BindGroupRanges {
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Range vtxDataRange;
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Range nrmDataRange;
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Range tcDataRange;
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Range packedTcDataRange;
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};
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void populate_pipeline_config(PipelineConfig& config, GX::Primitive primitive) noexcept;
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wgpu::RenderPipeline build_pipeline(const PipelineConfig& config, const ShaderInfo& info,
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ArrayRef<wgpu::VertexBufferLayout> vtxBuffers, wgpu::ShaderModule shader,
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zstring_view label) noexcept;
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ShaderInfo build_shader_info(const ShaderConfig& config) noexcept;
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wgpu::ShaderModule build_shader(const ShaderConfig& config, const ShaderInfo& info) noexcept;
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// Range build_vertex_buffer(const GXShaderInfo& info) noexcept;
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Range build_uniform(const ShaderInfo& info) noexcept;
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GXBindGroupLayouts build_bind_group_layouts(const ShaderInfo& info, const ShaderConfig& config) noexcept;
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GXBindGroups build_bind_groups(const ShaderInfo& info, const ShaderConfig& config,
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const BindGroupRanges& ranges) noexcept;
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} // namespace aurora::gfx::gx
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