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https://github.com/dolphin-emu/dolphin.git
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0bcd3c79bb
DataReader is generally jank - it has a start and end pointer, but the end pointer is generally not used, and all of the vertex loaders mostly bypassed it anyways. Wrapper code (the vertex loaer test, as well as Fifo.cpp and OpcodeDecoding.cpp) still uses it, as does the software vertex loader (which is not a subclass of VertexLoader). These can probably be eliminated later.
109 lines
3.8 KiB
C++
109 lines
3.8 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_TextCoord.h"
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#include <type_traits>
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#include "Common/CommonTypes.h"
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#include "Common/Swap.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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namespace
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{
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void TexCoord_Read_Dummy(VertexLoader* loader)
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{
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loader->m_tcIndex++;
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}
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template <typename T>
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constexpr float TCScale(T val, float scale)
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{
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return val * scale;
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}
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template <>
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constexpr float TCScale(float val, [[maybe_unused]] float scale)
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{
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return val;
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}
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template <typename T, int N>
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void TexCoord_ReadDirect(VertexLoader* loader)
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{
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const auto scale = loader->m_tcScale[loader->m_tcIndex];
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for (int i = 0; i != N; ++i)
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DataWrite(TCScale(DataRead<T>(), scale));
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++loader->m_tcIndex;
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}
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template <typename I, typename T, int N>
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void TexCoord_ReadIndex(VertexLoader* loader)
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{
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static_assert(std::is_unsigned<I>::value, "Only unsigned I is sane!");
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const auto index = DataRead<I>();
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const auto data = reinterpret_cast<const T*>(
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VertexLoaderManager::cached_arraybases[CPArray::TexCoord0 + loader->m_tcIndex] +
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(index * g_main_cp_state.array_strides[CPArray::TexCoord0 + loader->m_tcIndex]));
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const auto scale = loader->m_tcScale[loader->m_tcIndex];
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for (int i = 0; i != N; ++i)
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DataWrite(TCScale(Common::FromBigEndian(data[i]), scale));
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++loader->m_tcIndex;
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}
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using ComponentCountRow = Common::EnumMap<TPipelineFunction, TexComponentCount::ST>;
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using ComponentFormatTable = Common::EnumMap<ComponentCountRow, ComponentFormat::Float>;
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using Table = Common::EnumMap<ComponentFormatTable, VertexComponentFormat::Index16>;
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constexpr Table s_table_read_tex_coord = {
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ComponentFormatTable({
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ComponentCountRow(nullptr, nullptr),
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ComponentCountRow(nullptr, nullptr),
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ComponentCountRow(nullptr, nullptr),
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ComponentCountRow(nullptr, nullptr),
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ComponentCountRow(nullptr, nullptr),
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}),
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ComponentFormatTable({
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ComponentCountRow(TexCoord_ReadDirect<u8, 1>, TexCoord_ReadDirect<u8, 2>),
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ComponentCountRow(TexCoord_ReadDirect<s8, 1>, TexCoord_ReadDirect<s8, 2>),
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ComponentCountRow(TexCoord_ReadDirect<u16, 1>, TexCoord_ReadDirect<u16, 2>),
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ComponentCountRow(TexCoord_ReadDirect<s16, 1>, TexCoord_ReadDirect<s16, 2>),
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ComponentCountRow(TexCoord_ReadDirect<float, 1>, TexCoord_ReadDirect<float, 2>),
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}),
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ComponentFormatTable({
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ComponentCountRow(TexCoord_ReadIndex<u8, u8, 1>, TexCoord_ReadIndex<u8, u8, 2>),
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ComponentCountRow(TexCoord_ReadIndex<u8, s8, 1>, TexCoord_ReadIndex<u8, s8, 2>),
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ComponentCountRow(TexCoord_ReadIndex<u8, u16, 1>, TexCoord_ReadIndex<u8, u16, 2>),
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ComponentCountRow(TexCoord_ReadIndex<u8, s16, 1>, TexCoord_ReadIndex<u8, s16, 2>),
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ComponentCountRow(TexCoord_ReadIndex<u8, float, 1>, TexCoord_ReadIndex<u8, float, 2>),
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}),
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ComponentFormatTable({
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ComponentCountRow(TexCoord_ReadIndex<u16, u8, 1>, TexCoord_ReadIndex<u16, u8, 2>),
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ComponentCountRow(TexCoord_ReadIndex<u16, s8, 1>, TexCoord_ReadIndex<u16, s8, 2>),
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ComponentCountRow(TexCoord_ReadIndex<u16, u16, 1>, TexCoord_ReadIndex<u16, u16, 2>),
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ComponentCountRow(TexCoord_ReadIndex<u16, s16, 1>, TexCoord_ReadIndex<u16, s16, 2>),
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ComponentCountRow(TexCoord_ReadIndex<u16, float, 1>, TexCoord_ReadIndex<u16, float, 2>),
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}),
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};
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} // Anonymous namespace
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TPipelineFunction VertexLoader_TextCoord::GetFunction(VertexComponentFormat type,
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ComponentFormat format,
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TexComponentCount elements)
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{
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return s_table_read_tex_coord[type][format][elements];
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}
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TPipelineFunction VertexLoader_TextCoord::GetDummyFunction()
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{
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return TexCoord_Read_Dummy;
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}
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