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// Copyright 2017 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoBackends/Software/SWTexture.h"
#include <cstring>
#include "VideoBackends/Software/CopyRegion.h"
namespace SW
{
namespace
{
#pragma pack(push, 1)
struct Pixel
{
u8 r;
u8 g;
u8 b;
u8 a;
};
#pragma pack(pop)
}
SWTexture::SWTexture(const TextureConfig& tex_config) : AbstractTexture(tex_config)
{
m_data.resize(tex_config.width * tex_config.height * 4);
}
void SWTexture::Bind(unsigned int stage)
{
}
void SWTexture::CopyRectangleFromTexture(const AbstractTexture* source,
const MathUtil::Rectangle<int>& srcrect,
const MathUtil::Rectangle<int>& dstrect)
{
const SWTexture* software_source_texture = static_cast<const SWTexture*>(source);
if (srcrect.GetWidth() == dstrect.GetWidth() && srcrect.GetHeight() == dstrect.GetHeight())
{
m_data.assign(software_source_texture->GetData(),
software_source_texture->GetData() + m_data.size());
}
else
{
std::vector<Pixel> source_pixels;
source_pixels.resize(srcrect.GetHeight() * srcrect.GetWidth() * 4);
memcpy(source_pixels.data(), software_source_texture->GetData(), source_pixels.size());
std::vector<Pixel> destination_pixels;
destination_pixels.resize(dstrect.GetHeight() * dstrect.GetWidth() * 4);
CopyRegion(source_pixels.data(), srcrect, destination_pixels.data(), dstrect);
memcpy(GetData(), destination_pixels.data(), destination_pixels.size());
}
}
void SWTexture::Load(u32 level, u32 width, u32 height, u32 row_length, const u8* buffer,
size_t buffer_size)
{
m_data.assign(buffer, buffer + buffer_size);
}
const u8* SWTexture::GetData() const
{
return m_data.data();
}
u8* SWTexture::GetData()
{
return m_data.data();
}
std::optional<AbstractTexture::RawTextureInfo> SWTexture::MapFullImpl()
{
return AbstractTexture::RawTextureInfo{GetData(), m_config.width * 4, m_config.width,
m_config.height};
}
} // namespace SW
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