added: function to convert rgba <-> bgra.

theuni · Jul 9, 2011 · 972791b · davilla · Jul 10, 2011 · davilla
1 parent 3851c02
commit 972791b
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diff --git a/xbmc/guilib/Texture.cpp b/xbmc/guilib/Texture.cpp
@@ -412,6 +412,19 @@ unsigned int CBaseTexture::PadPow2(unsigned int x)
   return ++x;
 }
 
+bool CBaseTexture::SwapBlueRed(unsigned char *pixels, unsigned int height, unsigned int pitch, unsigned int elements, unsigned int offset)
+{
+if (!pixels) return false;
+  unsigned char *dst = pixels;
+  for (unsigned int y = 0; y < height; y++)
+  {
+    dst = pixels + (y * pitch);
+    for (unsigned int x = 0; x < pitch; x+=elements)
+       std::swap(dst[x+offset], dst[x+2+offset]);
+  }
+return true;
+}
+
 unsigned int CBaseTexture::GetPitch(unsigned int width) const
 {
   switch (m_format)

diff --git a/xbmc/guilib/Texture.h b/xbmc/guilib/Texture.h
@@ -89,6 +89,7 @@ class CBaseTexture
   void ClampToEdge();
 
   static unsigned int PadPow2(unsigned int x);
+  bool SwapBlueRed(unsigned char *pixels, unsigned int height, unsigned int pitch, unsigned int elements = 4, unsigned int offset=0);
 
 protected:
   // helpers for computation of texture parameters for compressed textures