diff options
author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
---|---|---|
committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | e2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch) | |
tree | 9047cf9e6b5c43878d5bf82660adae77ceee097a /mpeglib/lib/util/render/dither2YUV/rgb2yuvdefs.h | |
download | tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip |
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'mpeglib/lib/util/render/dither2YUV/rgb2yuvdefs.h')
-rw-r--r-- | mpeglib/lib/util/render/dither2YUV/rgb2yuvdefs.h | 74 |
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 : [email protected] + ***************************************************************************/ + +/*************************************************************************** + * * + * 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 |