Moved image code from bgfx into bimg library.

3rdparty/pvrtc/RgbBitmap.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "Bitmap.h"
+#include "ColorRgba.h"
+
+namespace Javelin {
+
+class RgbBitmap : public Bitmap {
+public:
+    RgbBitmap() {}
+
+    RgbBitmap(int w, int h)
+        : Bitmap(w, h, 3) {
+    }
+
+    const ColorRgb<unsigned char> *GetData() const { 
+        return reinterpret_cast<ColorRgb<unsigned char> *>(data); 
+    }
+
+    ColorRgb<unsigned char> *GetData() { 
+        return reinterpret_cast<ColorRgb<unsigned char> *>(data); 
+    }
+};
+
+}