82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
// Copyright 2017 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 "VideoBackends/Software/SWTexture.h"
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#include <cstring>
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#include "VideoBackends/Software/CopyRegion.h"
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namespace SW
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{
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namespace
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{
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#pragma pack(push, 1)
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struct Pixel
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{
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u8 r;
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u8 g;
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u8 b;
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u8 a;
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};
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#pragma pack(pop)
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}
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SWTexture::SWTexture(const TextureConfig& tex_config) : AbstractTexture(tex_config)
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{
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m_data.resize(tex_config.width * tex_config.height * 4);
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}
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void SWTexture::Bind(unsigned int stage)
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{
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}
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void SWTexture::CopyRectangleFromTexture(const AbstractTexture* source,
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const MathUtil::Rectangle<int>& srcrect,
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const MathUtil::Rectangle<int>& dstrect)
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{
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const SWTexture* software_source_texture = static_cast<const SWTexture*>(source);
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if (srcrect.GetWidth() == dstrect.GetWidth() && srcrect.GetHeight() == dstrect.GetHeight())
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{
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m_data.assign(software_source_texture->GetData(),
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software_source_texture->GetData() + m_data.size());
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}
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else
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{
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std::vector<Pixel> source_pixels;
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source_pixels.resize(srcrect.GetHeight() * srcrect.GetWidth() * 4);
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memcpy(source_pixels.data(), software_source_texture->GetData(), source_pixels.size());
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std::vector<Pixel> destination_pixels;
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destination_pixels.resize(dstrect.GetHeight() * dstrect.GetWidth() * 4);
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CopyRegion(source_pixels.data(), srcrect, destination_pixels.data(), dstrect);
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memcpy(GetData(), destination_pixels.data(), destination_pixels.size());
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}
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}
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void SWTexture::Load(u32 level, u32 width, u32 height, u32 row_length, const u8* buffer,
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size_t buffer_size)
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{
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m_data.assign(buffer, buffer + buffer_size);
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}
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const u8* SWTexture::GetData() const
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{
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return m_data.data();
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}
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u8* SWTexture::GetData()
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{
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return m_data.data();
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}
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std::optional<AbstractTexture::RawTextureInfo> SWTexture::MapFullImpl()
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{
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return AbstractTexture::RawTextureInfo{GetData(), m_config.width * 4, m_config.width,
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m_config.height};
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}
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} // namespace SW
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