From 6e686f6ea10c486a6271a6ca7cd084e124776b5a Mon Sep 17 00:00:00 2001
From: iwubcode <iwubcode@users.noreply.github.com>
Date: Wed, 23 Aug 2017 21:46:23 -0500
Subject: Software Backend: Fix xfb output and add vertical scaling support

---
 Source/Core/VideoBackends/Software/SWTexture.cpp | 32 ++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'Source/Core/VideoBackends/Software/SWTexture.cpp')

diff --git a/Source/Core/VideoBackends/Software/SWTexture.cpp b/Source/Core/VideoBackends/Software/SWTexture.cpp
index 164c0d5314..e2752fe0c7 100644
--- a/Source/Core/VideoBackends/Software/SWTexture.cpp
+++ b/Source/Core/VideoBackends/Software/SWTexture.cpp
@@ -4,8 +4,13 @@
 
 #include "VideoBackends/Software/SWTexture.h"
 
+#include <cstring>
+
+#include "VideoBackends/Software/CopyRegion.h"
+
 namespace SW
 {
+
 SWTexture::SWTexture(const TextureConfig& tex_config) : AbstractTexture(tex_config)
 {
 }
@@ -18,11 +23,38 @@ 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
+  {
+    copy_region(software_source_texture->GetData(), srcrect, GetData(), dstrect);
+  }
 }
 
 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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