1 files changed, 74 insertions, 0 deletions
diff --git a/mpeglib/lib/util/render/dither2YUV/rgb2yuvdefs.h b/mpeglib/lib/util/render/dither2YUV/rgb2yuvdefs.h
new file mode 100644
index 00000000..5c7ae574
--- /dev/null
+++ b/mpeglib/lib/util/render/dither2YUV/rgb2yuvdefs.h
@@ -0,0 +1,74 @@
+/***************************************************************************
+                          rgb2yuvdefs.h  -  description
+                             -------------------
+    begin                : Tue Nov 2 2000
+    copyright            : (C) 2000 by Christian Gerlach
+    email                : cgerlach@rhrk.uni-kl.de
+ ***************************************************************************/
+ 
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef __RGB2YUVDEFS_H
+#define __RGB2YUVDEFS_H
+
+/* gcc 3.3.1 and later optimise the "not used" (only in asm code)
+   symbols away. So we need to mark them as used. */
+#if defined(__GNUC_PREREQ__) && !defined(__GNUC_PREREQ)
+#define __GNUC_PREREQ __GNUC_PREREQ__
+#endif
+#ifdef __GNUC_PREREQ
+#if __GNUC_PREREQ (3,1)
+# define __attribute_used__ __attribute__ ((__used__))
+#else
+# define __attribute_used__ 
+#endif
+#else
+# define __attribute_used__ 
+#endif
+
+// hicolor mode (16 bit) with r(5) g(6) b(5) bits (reverse order b, g, r)
+#define RED(rgb)      (unsigned char) ((rgb) << 3)
+#define GREEN(rgb)    (((rgb) & 0x7e0) >> 3)
+#define BLUE(rgb)     (((rgb) & 0xf800) >> 8)
+
+#define YUV_SHIFT       15
+#define YUV_HALF        (1<<(YUV_SHIFT-1))
+#define YUV_ONE         (1<<YUV_SHIFT)
+#define Y_R   ((int)( 0.299 * YUV_ONE ))
+#define Y_G   ((int)( 0.587 * YUV_ONE ))
+#define Y_B   ((int)( 0.114 * YUV_ONE ))
+#define U_R   ((int)(-0.146 * YUV_ONE ))
+#define U_G   ((int)(-0.288 * YUV_ONE ))
+#define U_B   ((int)( 0.434 * YUV_ONE ))
+#define V_R   ((int)( 0.617 * YUV_ONE ))
+#define V_G   ((int)(-0.517 * YUV_ONE ))
+#define V_B   ((int)(-0.100 * YUV_ONE ))
+  
+#define Y_RGB(R,G,B) (( Y_R * (R) + Y_G * (G) + Y_B * (B)) >> YUV_SHIFT) 
+#define U_RGB(R,G,B) ((( U_R * (R) + U_G * (G) + U_B * (B)) >> YUV_SHIFT) + 128)
+#define V_RGB(R,G,B) ((( V_R * (R) + V_G * (G) + V_B * (B)) >> YUV_SHIFT) + 128) 
+
+static unsigned char __attribute_used__ CLEARX[8]  = { 255, 0, 255, 0, 255, 0, 255, 0 };
+static short __attribute_used__ ZEROSX[4]  = { 0, 0, 0, 0 };
+
+static short __attribute_used__ OFFSETDX[4] = { 0, 64, 0, 64 };
+static short __attribute_used__ OFFSETWX[4] = { 128, 0, 128, 0 };
+static short __attribute_used__ OFFSETBX[4] = { 128, 128, 128, 128 };
+
+static short __attribute_used__ YR0GRX[4] = { Y_R, Y_G, 0, Y_R };
+static short __attribute_used__ YBG0BX[4] = { Y_B, 0, Y_G, Y_B };
+
+static short __attribute_used__ UR0GRX[4] = { U_R, U_G, 0, U_R };
+static short __attribute_used__ UBG0BX[4] = { U_B, 0, U_G, U_B };
+
+static short __attribute_used__ VR0GRX[4] = { V_R, V_G, 0, V_R };
+static short __attribute_used__ VBG0BX[4] = { V_B, 0, V_G, V_B };
+ 
+#endif