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author | marha <marha@users.sourceforge.net> | 2011-01-19 10:06:48 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2011-01-19 10:06:48 +0000 |
commit | 6e3cfc5bc8ca969856e4d56dec01870df709d75a (patch) | |
tree | 92d253c403ac0ecfbb1c2859c283649bd46da65b /libXft/src/xftswap.c | |
parent | fe39224c389ccc187c2232d9cc796599e150fa6b (diff) | |
download | vcxsrv-6e3cfc5bc8ca969856e4d56dec01870df709d75a.tar.gz vcxsrv-6e3cfc5bc8ca969856e4d56dec01870df709d75a.tar.bz2 vcxsrv-6e3cfc5bc8ca969856e4d56dec01870df709d75a.zip |
Added libXft-2.2.0 fontconfig-2.8.0 libXrender-0.9.6
Diffstat (limited to 'libXft/src/xftswap.c')
-rw-r--r-- | libXft/src/xftswap.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/libXft/src/xftswap.c b/libXft/src/xftswap.c new file mode 100644 index 000000000..942efdb31 --- /dev/null +++ b/libXft/src/xftswap.c @@ -0,0 +1,119 @@ +/* + * Copyright © 2002 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "xftint.h" + +_X_HIDDEN int +XftNativeByteOrder (void) +{ + int whichbyte = 1; + + if (*((char *) &whichbyte)) + return LSBFirst; + return MSBFirst; +} + +/* byte swap a 32-bit value */ +#define swapl(x, n) { \ + n = ((char *) (x))[0];\ + ((char *) (x))[0] = ((char *) (x))[3];\ + ((char *) (x))[3] = n;\ + n = ((char *) (x))[1];\ + ((char *) (x))[1] = ((char *) (x))[2];\ + ((char *) (x))[2] = n; } + +/* byte swap a short */ +#define swaps(x, n) { \ + n = ((char *) (x))[0];\ + ((char *) (x))[0] = ((char *) (x))[1];\ + ((char *) (x))[1] = n; } + +/* byte swap a three-byte unit */ +#define swapt(x, n) { \ + n = ((char *) (x))[0];\ + ((char *) (x))[0] = ((char *) (x))[2];\ + ((char *) (x))[2] = n; } + +_X_HIDDEN void +XftSwapCARD32 (CARD32 *data, int u) +{ + char n; + while (u--) + { + swapl (data, n); + data++; + } +} + +_X_HIDDEN void +XftSwapCARD24 (CARD8 *data, int width, int height) +{ + int units, u; + char n; + CARD8 *d; + + units = width / 3; + while (height--) + { + d = data; + data += width; + u = units; + while (u--) + { + swapt (d, n); + d += 3; + } + } +} + +_X_HIDDEN void +XftSwapCARD16 (CARD16 *data, int u) +{ + char n; + while (u--) + { + swaps (data, n); + data++; + } +} + +_X_HIDDEN void +XftSwapImage (XImage *image) +{ + switch (image->bits_per_pixel) { + case 32: + XftSwapCARD32 ((CARD32 *) image->data, + image->height * image->bytes_per_line >> 2); + break; + case 24: + XftSwapCARD24 ((CARD8 *) image->data, + image->bytes_per_line, + image->height); + break; + case 16: + XftSwapCARD16 ((CARD16 *) image->data, + image->height * image->bytes_per_line >> 1); + break; + default: + break; + } +} |