145 lines
4.1 KiB
C++
145 lines
4.1 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <type_traits>
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#include "Common/CommonFuncs.h"
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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/VertexLoader_TextCoord.h"
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#include "VideoCommon/VertexLoaderManager.h"
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#include "VideoCommon/VertexLoaderUtils.h"
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template <int N>
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void LOG_TEX();
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template <>
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void LOG_TEX<1>()
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{
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// warning: mapping buffer should be disabled to use this
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// PRIM_LOG("tex: %f, ", ((float*)g_vertex_manager_write_ptr)[-1]);
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}
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template <>
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void LOG_TEX<2>()
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{
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// warning: mapping buffer should be disabled to use this
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// PRIM_LOG("tex: %f %f, ", ((float*)g_vertex_manager_write_ptr)[-2], ((float*)g_vertex_manager_write_ptr)[-1]);
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}
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static 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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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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float TCScale(float val, 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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auto const scale = loader->m_tcScale[loader->m_tcIndex];
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DataReader dst(g_vertex_manager_write_ptr, nullptr);
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DataReader src(g_video_buffer_read_ptr, nullptr);
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for (int i = 0; i != N; ++i)
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dst.Write(TCScale(src.Read<T>(), scale));
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g_vertex_manager_write_ptr = dst.GetPointer();
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g_video_buffer_read_ptr = src.GetPointer();
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LOG_TEX<N>();
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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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auto const index = DataRead<I>();
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auto const data = reinterpret_cast<const T*>(VertexLoaderManager::cached_arraybases[ARRAY_TEXCOORD0 + loader->m_tcIndex]
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+ (index * g_main_cp_state.array_strides[ARRAY_TEXCOORD0 + loader->m_tcIndex]));
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auto const scale = loader->m_tcScale[loader->m_tcIndex];
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DataReader dst(g_vertex_manager_write_ptr, nullptr);
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for (int i = 0; i != N; ++i)
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dst.Write(TCScale(Common::FromBigEndian(data[i]), scale));
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g_vertex_manager_write_ptr = dst.GetPointer();
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LOG_TEX<N>();
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++loader->m_tcIndex;
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}
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static TPipelineFunction tableReadTexCoord[4][8][2] = {
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{
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{nullptr, nullptr,},
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{nullptr, nullptr,},
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{nullptr, nullptr,},
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{nullptr, nullptr,},
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{nullptr, nullptr,},
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},
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{
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{TexCoord_ReadDirect<u8, 1>, TexCoord_ReadDirect<u8, 2>,},
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{TexCoord_ReadDirect<s8, 1>, TexCoord_ReadDirect<s8, 2>,},
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{TexCoord_ReadDirect<u16, 1>, TexCoord_ReadDirect<u16, 2>,},
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{TexCoord_ReadDirect<s16, 1>, TexCoord_ReadDirect<s16, 2>,},
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{TexCoord_ReadDirect<float, 1>, TexCoord_ReadDirect<float, 2>,},
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},
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{
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{TexCoord_ReadIndex<u8, u8, 1>, TexCoord_ReadIndex<u8, u8, 2>,},
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{TexCoord_ReadIndex<u8, s8, 1>, TexCoord_ReadIndex<u8, s8, 2>,},
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{TexCoord_ReadIndex<u8, u16, 1>, TexCoord_ReadIndex<u8, u16, 2>,},
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{TexCoord_ReadIndex<u8, s16, 1>, TexCoord_ReadIndex<u8, s16, 2>,},
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{TexCoord_ReadIndex<u8, float, 1>, TexCoord_ReadIndex<u8, float, 2>,},
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},
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{
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{TexCoord_ReadIndex<u16, u8, 1>, TexCoord_ReadIndex<u16, u8, 2>,},
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{TexCoord_ReadIndex<u16, s8, 1>, TexCoord_ReadIndex<u16, s8, 2>,},
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{TexCoord_ReadIndex<u16, u16, 1>, TexCoord_ReadIndex<u16, u16, 2>,},
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{TexCoord_ReadIndex<u16, s16, 1>, TexCoord_ReadIndex<u16, s16, 2>,},
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{TexCoord_ReadIndex<u16, float, 1>, TexCoord_ReadIndex<u16, float, 2>,},
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},
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};
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static int tableReadTexCoordVertexSize[4][8][2] = {
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{
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{0, 0,}, {0, 0,}, {0, 0,}, {0, 0,}, {0, 0,},
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},
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{
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{1, 2,}, {1, 2,}, {2, 4,}, {2, 4,}, {4, 8,},
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},
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{
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{1, 1,}, {1, 1,}, {1, 1,}, {1, 1,}, {1, 1,},
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},
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{
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{2, 2,}, {2, 2,}, {2, 2,}, {2, 2,}, {2, 2,},
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},
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};
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unsigned int VertexLoader_TextCoord::GetSize(u64 _type, unsigned int _format, unsigned int _elements)
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{
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return tableReadTexCoordVertexSize[_type][_format][_elements];
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}
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TPipelineFunction VertexLoader_TextCoord::GetFunction(u64 _type, unsigned int _format, unsigned int _elements)
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{
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return tableReadTexCoord[_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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