244 lines
9.4 KiB
C++
244 lines
9.4 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "VideoCommon/VertexLoader_Normal.h"
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#include <array>
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#include <type_traits>
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#include "Common/CommonTypes.h"
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#include "VideoCommon/DataReader.h"
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#include "VideoCommon/VertexLoader.h"
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#include "VideoCommon/VertexLoaderManager.h"
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#include "VideoCommon/VertexLoaderUtils.h"
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// warning: mapping buffer should be disabled to use this
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#define LOG_NORM() // PRIM_LOG("norm: {} {} {}, ", ((float*)g_vertex_manager_write_ptr)[-3],
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// ((float*)g_vertex_manager_write_ptr)[-2],
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// ((float*)g_vertex_manager_write_ptr)[-1]);
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namespace
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{
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template <typename T>
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constexpr float FracAdjust(T val)
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{
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// auto const S8FRAC = 1.f / (1u << 6);
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// auto const U8FRAC = 1.f / (1u << 7);
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// auto const S16FRAC = 1.f / (1u << 14);
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// auto const U16FRAC = 1.f / (1u << 15);
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// TODO: is this right?
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return val / float(1u << (sizeof(T) * 8 - std::is_signed_v<T> - 1));
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}
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template <>
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constexpr float FracAdjust(float val)
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{
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return val;
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}
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template <typename T, u32 N>
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void ReadIndirect(const T* data)
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{
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static_assert(3 == N || 9 == N, "N is only sane as 3 or 9!");
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DataReader dst(g_vertex_manager_write_ptr, nullptr);
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for (u32 i = 0; i < N; ++i)
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{
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dst.Write(FracAdjust(Common::FromBigEndian(data[i])));
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}
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g_vertex_manager_write_ptr = dst.GetPointer();
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LOG_NORM();
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}
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template <typename T, u32 N>
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struct Normal_Direct
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{
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static void function([[maybe_unused]] VertexLoader* loader)
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{
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auto const source = reinterpret_cast<const T*>(DataGetPosition());
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ReadIndirect<T, N * 3>(source);
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DataSkip<N * 3 * sizeof(T)>();
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}
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static constexpr u32 size = sizeof(T) * N * 3;
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};
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template <typename I, typename T, u32 N, u32 Offset>
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void Normal_Index_Offset()
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{
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static_assert(std::is_unsigned_v<I>, "Only unsigned I is sane!");
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auto const index = DataRead<I>();
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auto const data = reinterpret_cast<const T*>(
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VertexLoaderManager::cached_arraybases[ARRAY_NORMAL] +
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(index * g_main_cp_state.array_strides[ARRAY_NORMAL]) + sizeof(T) * 3 * Offset);
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ReadIndirect<T, N * 3>(data);
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}
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template <typename I, typename T, u32 N>
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struct Normal_Index
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{
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static void function([[maybe_unused]] VertexLoader* loader) { Normal_Index_Offset<I, T, N, 0>(); }
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static constexpr u32 size = sizeof(I);
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};
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template <typename I, typename T>
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struct Normal_Index_Indices3
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{
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static void function([[maybe_unused]] VertexLoader* loader)
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{
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Normal_Index_Offset<I, T, 1, 0>();
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Normal_Index_Offset<I, T, 1, 1>();
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Normal_Index_Offset<I, T, 1, 2>();
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}
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static constexpr u32 size = sizeof(I) * 3;
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};
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enum NormalType
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{
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NRM_NOT_PRESENT = 0,
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NRM_DIRECT = 1,
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NRM_INDEX8 = 2,
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NRM_INDEX16 = 3,
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NUM_NRM_TYPE
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};
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enum NormalFormat
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{
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FORMAT_UBYTE = 0,
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FORMAT_BYTE = 1,
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FORMAT_USHORT = 2,
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FORMAT_SHORT = 3,
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FORMAT_FLOAT = 4,
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NUM_NRM_FORMAT
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};
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enum NormalElements
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{
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NRM_NBT = 0,
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NRM_NBT3 = 1,
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NUM_NRM_ELEMENTS
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};
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enum NormalIndices
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{
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NRM_INDICES1 = 0,
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NRM_INDICES3 = 1,
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NUM_NRM_INDICES
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};
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struct Set
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{
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template <typename T>
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constexpr Set& operator=(const T&)
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{
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gc_size = T::size;
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function = T::function;
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return *this;
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}
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u32 gc_size;
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TPipelineFunction function;
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};
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using Formats = std::array<Set, NUM_NRM_FORMAT>;
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using Elements = std::array<Formats, NUM_NRM_ELEMENTS>;
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using Indices = std::array<Elements, NUM_NRM_INDICES>;
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using Types = std::array<Indices, NUM_NRM_TYPE>;
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constexpr Types InitializeTable()
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{
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Types table{};
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT][FORMAT_UBYTE] = Normal_Direct<u8, 1>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT][FORMAT_BYTE] = Normal_Direct<s8, 1>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT][FORMAT_USHORT] = Normal_Direct<u16, 1>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT][FORMAT_SHORT] = Normal_Direct<s16, 1>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT][FORMAT_FLOAT] = Normal_Direct<float, 1>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT3][FORMAT_UBYTE] = Normal_Direct<u8, 3>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT3][FORMAT_BYTE] = Normal_Direct<s8, 3>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT3][FORMAT_USHORT] = Normal_Direct<u16, 3>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT3][FORMAT_SHORT] = Normal_Direct<s16, 3>();
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table[NRM_DIRECT][NRM_INDICES1][NRM_NBT3][FORMAT_FLOAT] = Normal_Direct<float, 3>();
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// Same as above
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT][FORMAT_UBYTE] = Normal_Direct<u8, 1>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT][FORMAT_BYTE] = Normal_Direct<s8, 1>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT][FORMAT_USHORT] = Normal_Direct<u16, 1>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT][FORMAT_SHORT] = Normal_Direct<s16, 1>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT][FORMAT_FLOAT] = Normal_Direct<float, 1>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT3][FORMAT_UBYTE] = Normal_Direct<u8, 3>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT3][FORMAT_BYTE] = Normal_Direct<s8, 3>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT3][FORMAT_USHORT] = Normal_Direct<u16, 3>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT3][FORMAT_SHORT] = Normal_Direct<s16, 3>();
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table[NRM_DIRECT][NRM_INDICES3][NRM_NBT3][FORMAT_FLOAT] = Normal_Direct<float, 3>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT][FORMAT_UBYTE] = Normal_Index<u8, u8, 1>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT][FORMAT_BYTE] = Normal_Index<u8, s8, 1>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT][FORMAT_USHORT] = Normal_Index<u8, u16, 1>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT][FORMAT_SHORT] = Normal_Index<u8, s16, 1>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT][FORMAT_FLOAT] = Normal_Index<u8, float, 1>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT3][FORMAT_UBYTE] = Normal_Index<u8, u8, 3>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT3][FORMAT_BYTE] = Normal_Index<u8, s8, 3>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT3][FORMAT_USHORT] = Normal_Index<u8, u16, 3>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT3][FORMAT_SHORT] = Normal_Index<u8, s16, 3>();
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table[NRM_INDEX8][NRM_INDICES1][NRM_NBT3][FORMAT_FLOAT] = Normal_Index<u8, float, 3>();
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// Same as above for NRM_NBT
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT][FORMAT_UBYTE] = Normal_Index<u8, u8, 1>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT][FORMAT_BYTE] = Normal_Index<u8, s8, 1>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT][FORMAT_USHORT] = Normal_Index<u8, u16, 1>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT][FORMAT_SHORT] = Normal_Index<u8, s16, 1>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT][FORMAT_FLOAT] = Normal_Index<u8, float, 1>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT3][FORMAT_UBYTE] = Normal_Index_Indices3<u8, u8>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT3][FORMAT_BYTE] = Normal_Index_Indices3<u8, s8>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT3][FORMAT_USHORT] = Normal_Index_Indices3<u8, u16>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT3][FORMAT_SHORT] = Normal_Index_Indices3<u8, s16>();
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table[NRM_INDEX8][NRM_INDICES3][NRM_NBT3][FORMAT_FLOAT] = Normal_Index_Indices3<u8, float>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT][FORMAT_UBYTE] = Normal_Index<u16, u8, 1>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT][FORMAT_BYTE] = Normal_Index<u16, s8, 1>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT][FORMAT_USHORT] = Normal_Index<u16, u16, 1>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT][FORMAT_SHORT] = Normal_Index<u16, s16, 1>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT][FORMAT_FLOAT] = Normal_Index<u16, float, 1>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT3][FORMAT_UBYTE] = Normal_Index<u16, u8, 3>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT3][FORMAT_BYTE] = Normal_Index<u16, s8, 3>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT3][FORMAT_USHORT] = Normal_Index<u16, u16, 3>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT3][FORMAT_SHORT] = Normal_Index<u16, s16, 3>();
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table[NRM_INDEX16][NRM_INDICES1][NRM_NBT3][FORMAT_FLOAT] = Normal_Index<u16, float, 3>();
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// Same as above for NRM_NBT
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT][FORMAT_UBYTE] = Normal_Index<u16, u8, 1>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT][FORMAT_BYTE] = Normal_Index<u16, s8, 1>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT][FORMAT_USHORT] = Normal_Index<u16, u16, 1>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT][FORMAT_SHORT] = Normal_Index<u16, s16, 1>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT][FORMAT_FLOAT] = Normal_Index<u16, float, 1>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT3][FORMAT_UBYTE] = Normal_Index_Indices3<u16, u8>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT3][FORMAT_BYTE] = Normal_Index_Indices3<u16, s8>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT3][FORMAT_USHORT] = Normal_Index_Indices3<u16, u16>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT3][FORMAT_SHORT] = Normal_Index_Indices3<u16, s16>();
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table[NRM_INDEX16][NRM_INDICES3][NRM_NBT3][FORMAT_FLOAT] = Normal_Index_Indices3<u16, float>();
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return table;
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}
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constexpr Types s_table = InitializeTable();
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} // Anonymous namespace
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u32 VertexLoader_Normal::GetSize(VertexComponentFormat type, ComponentFormat format,
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NormalComponentCount elements, u32 index3)
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{
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return s_table[u32(type)][index3][u32(elements)][u32(format)].gc_size;
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}
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TPipelineFunction VertexLoader_Normal::GetFunction(VertexComponentFormat type,
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ComponentFormat format,
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NormalComponentCount elements, u32 index3)
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{
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return s_table[u32(type)][index3][u32(elements)][u32(format)].function;
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}
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