Merge pull request #5498 from iwubcode/hybrid_xfb

Hybrid xfb

1 files changed, 53 insertions, 0 deletions

diff --git a/Source/Core/VideoBackends/Software/SWTexture.cpp b/Source/Core/VideoBackends/Software/SWTexture.cpp
index 164c0d5314..aa279b520b 100644
--- a/Source/Core/VideoBackends/Software/SWTexture.cpp
+++ b/Source/Core/VideoBackends/Software/SWTexture.cpp
@@ -4,10 +4,27 @@
 
 #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)
@@ -18,11 +35,47 @@ 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