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// Copyright 2008 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "VideoCommon/VertexLoader_Normal.h"
#include <array>
#include <type_traits>
#include "Common/CommonTypes.h"
#include "Common/EnumMap.h"
#include "VideoCommon/VertexLoader.h"
#include "VideoCommon/VertexLoaderManager.h"
#include "VideoCommon/VertexLoaderUtils.h"
// warning: mapping buffer should be disabled to use this
#define LOG_NORM() // PRIM_LOG("norm: {} {} {}, ", ((float*)g_vertex_manager_write_ptr)[-3],
// ((float*)g_vertex_manager_write_ptr)[-2],
// ((float*)g_vertex_manager_write_ptr)[-1]);
namespace
{
template <typename T>
constexpr float FracAdjust(T val)
{
// auto const S8FRAC = 1.f / (1u << 6);
// auto const U8FRAC = 1.f / (1u << 7);
// auto const S16FRAC = 1.f / (1u << 14);
// auto const U16FRAC = 1.f / (1u << 15);
// TODO: is this right?
return val / float(1u << (sizeof(T) * 8 - std::is_signed_v<T> - 1));
}
template <>
constexpr float FracAdjust(float val)
{
return val;
}
template <typename T, u32 N, u32 Offset>
void ReadIndirect(VertexLoader* loader, const T* data)
{
static_assert(3 == N || 9 == N, "N is only sane as 3 or 9!");
static_assert(!(Offset != 0 && 9 == N), "N == 9 only makes sense if offset == 0");
for (u32 i = Offset; i < N + Offset; ++i)
{
const float value = FracAdjust(Common::FromBigEndian(data[i]));
if (loader->m_remaining == 0)
{
if (i >= 3 && i < 6)
VertexLoaderManager::tangent_cache[i - 3] = value;
else if (i >= 6 && i < 9)
VertexLoaderManager::binormal_cache[i - 6] = value;
}
DataWrite(value);
}
LOG_NORM();
}
template <typename T, u32 N>
void Normal_ReadDirect(VertexLoader* loader)
{
const auto source = reinterpret_cast<const T*>(DataGetPosition());
ReadIndirect<T, N * 3, 0>(loader, source);
DataSkip<N * 3 * sizeof(T)>();
}
template <typename I, typename T, u32 N, u32 Offset>
void Normal_ReadIndex_Offset(VertexLoader* loader)
{
static_assert(std::is_unsigned_v<I>, "Only unsigned I is sane!");
const auto index = DataRead<I>();
const auto data =
reinterpret_cast<const T*>(VertexLoaderManager::cached_arraybases[CPArray::Normal] +
(index * g_main_cp_state.array_strides[CPArray::Normal]));
ReadIndirect<T, N * 3, Offset * 3>(loader, data);
}
template <typename I, typename T, u32 N>
void Normal_ReadIndex(VertexLoader* loader)
{
Normal_ReadIndex_Offset<I, T, N, 0>(loader);
}
template <typename I, typename T>
void Normal_ReadIndex_Indices3(VertexLoader* loader)
{
Normal_ReadIndex_Offset<I, T, 1, 0>(loader);
Normal_ReadIndex_Offset<I, T, 1, 1>(loader);
Normal_ReadIndex_Offset<I, T, 1, 2>(loader);
}
using Common::EnumMap;
using Formats = EnumMap<TPipelineFunction, ComponentFormat::InvalidFloat7>;
using Elements = EnumMap<Formats, NormalComponentCount::NTB>;
using Indices = std::array<Elements, 2>;
using Types = EnumMap<Indices, VertexComponentFormat::Index16>;
consteval Types InitializeTable()
{
Types table{};
using VCF = VertexComponentFormat;
using NCC = NormalComponentCount;
using FMT = ComponentFormat;
table[VCF::Direct][false][NCC::N][FMT::UByte] = Normal_ReadDirect<u8, 1>;
table[VCF::Direct][false][NCC::N][FMT::Byte] = Normal_ReadDirect<s8, 1>;
table[VCF::Direct][false][NCC::N][FMT::UShort] = Normal_ReadDirect<u16, 1>;
table[VCF::Direct][false][NCC::N][FMT::Short] = Normal_ReadDirect<s16, 1>;
table[VCF::Direct][false][NCC::N][FMT::Float] = Normal_ReadDirect<float, 1>;
table[VCF::Direct][false][NCC::N][FMT::InvalidFloat5] = Normal_ReadDirect<float, 1>;
table[VCF::Direct][false][NCC::N][FMT::InvalidFloat6] = Normal_ReadDirect<float, 1>;
table[VCF::Direct][false][NCC::N][FMT::InvalidFloat7] = Normal_ReadDirect<float, 1>;
table[VCF::Direct][false][NCC::NTB][FMT::UByte] = Normal_ReadDirect<u8, 3>;
table[VCF::Direct][false][NCC::NTB][FMT::Byte] = Normal_ReadDirect<s8, 3>;
table[VCF::Direct][false][NCC::NTB][FMT::UShort] = Normal_ReadDirect<u16, 3>;
table[VCF::Direct][false][NCC::NTB][FMT::Short] = Normal_ReadDirect<s16, 3>;
table[VCF::Direct][false][NCC::NTB][FMT::Float] = Normal_ReadDirect<float, 3>;
table[VCF::Direct][false][NCC::NTB][FMT::InvalidFloat5] = Normal_ReadDirect<float, 3>;
table[VCF::Direct][false][NCC::NTB][FMT::InvalidFloat6] = Normal_ReadDirect<float, 3>;
table[VCF::Direct][false][NCC::NTB][FMT::InvalidFloat7] = Normal_ReadDirect<float, 3>;
// Same as above, since there are no indices
table[VCF::Direct][true][NCC::N][FMT::UByte] = Normal_ReadDirect<u8, 1>;
table[VCF::Direct][true][NCC::N][FMT::Byte] = Normal_ReadDirect<s8, 1>;
table[VCF::Direct][true][NCC::N][FMT::UShort] = Normal_ReadDirect<u16, 1>;
table[VCF::Direct][true][NCC::N][FMT::Short] = Normal_ReadDirect<s16, 1>;
table[VCF::Direct][true][NCC::N][FMT::Float] = Normal_ReadDirect<float, 1>;
table[VCF::Direct][true][NCC::N][FMT::InvalidFloat5] = Normal_ReadDirect<float, 1>;
table[VCF::Direct][true][NCC::N][FMT::InvalidFloat6] = Normal_ReadDirect<float, 1>;
table[VCF::Direct][true][NCC::N][FMT::InvalidFloat7] = Normal_ReadDirect<float, 1>;
table[VCF::Direct][true][NCC::NTB][FMT::UByte] = Normal_ReadDirect<u8, 3>;
table[VCF::Direct][true][NCC::NTB][FMT::Byte] = Normal_ReadDirect<s8, 3>;
table[VCF::Direct][true][NCC::NTB][FMT::UShort] = Normal_ReadDirect<u16, 3>;
table[VCF::Direct][true][NCC::NTB][FMT::Short] = Normal_ReadDirect<s16, 3>;
table[VCF::Direct][true][NCC::NTB][FMT::Float] = Normal_ReadDirect<float, 3>;
table[VCF::Direct][true][NCC::NTB][FMT::InvalidFloat5] = Normal_ReadDirect<float, 3>;
table[VCF::Direct][true][NCC::NTB][FMT::InvalidFloat6] = Normal_ReadDirect<float, 3>;
table[VCF::Direct][true][NCC::NTB][FMT::InvalidFloat7] = Normal_ReadDirect<float, 3>;
table[VCF::Index8][false][NCC::N][FMT::UByte] = Normal_ReadIndex<u8, u8, 1>;
table[VCF::Index8][false][NCC::N][FMT::Byte] = Normal_ReadIndex<u8, s8, 1>;
table[VCF::Index8][false][NCC::N][FMT::UShort] = Normal_ReadIndex<u8, u16, 1>;
table[VCF::Index8][false][NCC::N][FMT::Short] = Normal_ReadIndex<u8, s16, 1>;
table[VCF::Index8][false][NCC::N][FMT::Float] = Normal_ReadIndex<u8, float, 1>;
table[VCF::Index8][false][NCC::N][FMT::InvalidFloat5] = Normal_ReadIndex<u8, float, 1>;
table[VCF::Index8][false][NCC::N][FMT::InvalidFloat6] = Normal_ReadIndex<u8, float, 1>;
table[VCF::Index8][false][NCC::N][FMT::InvalidFloat7] = Normal_ReadIndex<u8, float, 1>;
table[VCF::Index8][false][NCC::NTB][FMT::UByte] = Normal_ReadIndex<u8, u8, 3>;
table[VCF::Index8][false][NCC::NTB][FMT::Byte] = Normal_ReadIndex<u8, s8, 3>;
table[VCF::Index8][false][NCC::NTB][FMT::UShort] = Normal_ReadIndex<u8, u16, 3>;
table[VCF::Index8][false][NCC::NTB][FMT::Short] = Normal_ReadIndex<u8, s16, 3>;
table[VCF::Index8][false][NCC::NTB][FMT::Float] = Normal_ReadIndex<u8, float, 3>;
table[VCF::Index8][false][NCC::NTB][FMT::InvalidFloat5] = Normal_ReadIndex<u8, float, 3>;
table[VCF::Index8][false][NCC::NTB][FMT::InvalidFloat6] = Normal_ReadIndex<u8, float, 3>;
table[VCF::Index8][false][NCC::NTB][FMT::InvalidFloat7] = Normal_ReadIndex<u8, float, 3>;
// Same for NormalComponentCount::N; differs for NTB
table[VCF::Index8][true][NCC::N][FMT::UByte] = Normal_ReadIndex<u8, u8, 1>;
table[VCF::Index8][true][NCC::N][FMT::Byte] = Normal_ReadIndex<u8, s8, 1>;
table[VCF::Index8][true][NCC::N][FMT::UShort] = Normal_ReadIndex<u8, u16, 1>;
table[VCF::Index8][true][NCC::N][FMT::Short] = Normal_ReadIndex<u8, s16, 1>;
table[VCF::Index8][true][NCC::N][FMT::Float] = Normal_ReadIndex<u8, float, 1>;
table[VCF::Index8][true][NCC::N][FMT::InvalidFloat5] = Normal_ReadIndex<u8, float, 1>;
table[VCF::Index8][true][NCC::N][FMT::InvalidFloat6] = Normal_ReadIndex<u8, float, 1>;
table[VCF::Index8][true][NCC::N][FMT::InvalidFloat7] = Normal_ReadIndex<u8, float, 1>;
table[VCF::Index8][true][NCC::NTB][FMT::UByte] = Normal_ReadIndex_Indices3<u8, u8>;
table[VCF::Index8][true][NCC::NTB][FMT::Byte] = Normal_ReadIndex_Indices3<u8, s8>;
table[VCF::Index8][true][NCC::NTB][FMT::UShort] = Normal_ReadIndex_Indices3<u8, u16>;
table[VCF::Index8][true][NCC::NTB][FMT::Short] = Normal_ReadIndex_Indices3<u8, s16>;
table[VCF::Index8][true][NCC::NTB][FMT::Float] = Normal_ReadIndex_Indices3<u8, float>;
table[VCF::Index8][true][NCC::NTB][FMT::InvalidFloat5] = Normal_ReadIndex_Indices3<u8, float>;
table[VCF::Index8][true][NCC::NTB][FMT::InvalidFloat6] = Normal_ReadIndex_Indices3<u8, float>;
table[VCF::Index8][true][NCC::NTB][FMT::InvalidFloat7] = Normal_ReadIndex_Indices3<u8, float>;
table[VCF::Index16][false][NCC::N][FMT::UByte] = Normal_ReadIndex<u16, u8, 1>;
table[VCF::Index16][false][NCC::N][FMT::Byte] = Normal_ReadIndex<u16, s8, 1>;
table[VCF::Index16][false][NCC::N][FMT::UShort] = Normal_ReadIndex<u16, u16, 1>;
table[VCF::Index16][false][NCC::N][FMT::Short] = Normal_ReadIndex<u16, s16, 1>;
table[VCF::Index16][false][NCC::N][FMT::Float] = Normal_ReadIndex<u16, float, 1>;
table[VCF::Index16][false][NCC::N][FMT::InvalidFloat5] = Normal_ReadIndex<u16, float, 1>;
table[VCF::Index16][false][NCC::N][FMT::InvalidFloat6] = Normal_ReadIndex<u16, float, 1>;
table[VCF::Index16][false][NCC::N][FMT::InvalidFloat7] = Normal_ReadIndex<u16, float, 1>;
table[VCF::Index16][false][NCC::NTB][FMT::UByte] = Normal_ReadIndex<u16, u8, 3>;
table[VCF::Index16][false][NCC::NTB][FMT::Byte] = Normal_ReadIndex<u16, s8, 3>;
table[VCF::Index16][false][NCC::NTB][FMT::UShort] = Normal_ReadIndex<u16, u16, 3>;
table[VCF::Index16][false][NCC::NTB][FMT::Short] = Normal_ReadIndex<u16, s16, 3>;
table[VCF::Index16][false][NCC::NTB][FMT::Float] = Normal_ReadIndex<u16, float, 3>;
table[VCF::Index16][false][NCC::NTB][FMT::InvalidFloat5] = Normal_ReadIndex<u16, float, 3>;
table[VCF::Index16][false][NCC::NTB][FMT::InvalidFloat6] = Normal_ReadIndex<u16, float, 3>;
table[VCF::Index16][false][NCC::NTB][FMT::InvalidFloat7] = Normal_ReadIndex<u16, float, 3>;
// Same for NormalComponentCount::N; differs for NTB
table[VCF::Index16][true][NCC::N][FMT::UByte] = Normal_ReadIndex<u16, u8, 1>;
table[VCF::Index16][true][NCC::N][FMT::Byte] = Normal_ReadIndex<u16, s8, 1>;
table[VCF::Index16][true][NCC::N][FMT::UShort] = Normal_ReadIndex<u16, u16, 1>;
table[VCF::Index16][true][NCC::N][FMT::Short] = Normal_ReadIndex<u16, s16, 1>;
table[VCF::Index16][true][NCC::N][FMT::Float] = Normal_ReadIndex<u16, float, 1>;
table[VCF::Index16][true][NCC::N][FMT::InvalidFloat5] = Normal_ReadIndex<u16, float, 1>;
table[VCF::Index16][true][NCC::N][FMT::InvalidFloat6] = Normal_ReadIndex<u16, float, 1>;
table[VCF::Index16][true][NCC::N][FMT::InvalidFloat7] = Normal_ReadIndex<u16, float, 1>;
table[VCF::Index16][true][NCC::NTB][FMT::UByte] = Normal_ReadIndex_Indices3<u16, u8>;
table[VCF::Index16][true][NCC::NTB][FMT::Byte] = Normal_ReadIndex_Indices3<u16, s8>;
table[VCF::Index16][true][NCC::NTB][FMT::UShort] = Normal_ReadIndex_Indices3<u16, u16>;
table[VCF::Index16][true][NCC::NTB][FMT::Short] = Normal_ReadIndex_Indices3<u16, s16>;
table[VCF::Index16][true][NCC::NTB][FMT::Float] = Normal_ReadIndex_Indices3<u16, float>;
table[VCF::Index16][true][NCC::NTB][FMT::InvalidFloat5] = Normal_ReadIndex_Indices3<u16, float>;
table[VCF::Index16][true][NCC::NTB][FMT::InvalidFloat6] = Normal_ReadIndex_Indices3<u16, float>;
table[VCF::Index16][true][NCC::NTB][FMT::InvalidFloat7] = Normal_ReadIndex_Indices3<u16, float>;
return table;
}
constexpr Types s_table_read_normal = InitializeTable();
} // Anonymous namespace
TPipelineFunction VertexLoader_Normal::GetFunction(VertexComponentFormat type,
ComponentFormat format,
NormalComponentCount elements, bool index3)
{
return s_table_read_normal[type][index3][elements][format];
}
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