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Diffstat (limited to 'driver/pack.c')
| -rw-r--r-- | driver/pack.c | 307 |
1 files changed, 0 insertions, 307 deletions
diff --git a/driver/pack.c b/driver/pack.c deleted file mode 100644 index db9e5de4..00000000 --- a/driver/pack.c +++ /dev/null @@ -1,307 +0,0 @@ -/* - * "$Id: pack.c 7306 2008-02-15 00:52:38Z mike $" - * - * Bit packing routines for CUPS. - * - * Copyright 2007 by Apple Inc. - * Copyright 1993-2005 by Easy Software Products. - * - * These coded instructions, statements, and computer programs are the - * property of Apple Inc. and are protected by Federal copyright - * law. Distribution and use rights are outlined in the file "LICENSE.txt" - * which should have been included with this file. If this file is - * file is missing or damaged, see the license at "http://www.cups.org/". - * - * Contents: - * - * cupsPackHorizontal() - Pack pixels horizontally... - * cupsPackHorizontal2() - Pack 2-bit pixels horizontally... - * cupsPackHorizontalBit() - Pack pixels horizontally by bit... - * cupsPackVertical() - Pack pixels vertically... - */ - -/* - * Include necessary headers... - */ - -#include "driver.h" - - -/* - * 'cupsPackHorizontal()' - Pack pixels horizontally... - */ - -void -cupsPackHorizontal(const unsigned char *ipixels,/* I - Input pixels */ - unsigned char *obytes, /* O - Output bytes */ - int width, /* I - Number of pixels */ - const unsigned char clearto, /* I - Initial value of bytes */ - const int step) /* I - Step value between pixels */ -{ - register unsigned char b; /* Current byte */ - - - /* - * Do whole bytes first... - */ - - while (width > 7) - { - b = clearto; - - if (*ipixels) - b ^= 0x80; - ipixels += step; - if (*ipixels) - b ^= 0x40; - ipixels += step; - if (*ipixels) - b ^= 0x20; - ipixels += step; - if (*ipixels) - b ^= 0x10; - ipixels += step; - if (*ipixels) - b ^= 0x08; - ipixels += step; - if (*ipixels) - b ^= 0x04; - ipixels += step; - if (*ipixels) - b ^= 0x02; - ipixels += step; - if (*ipixels) - b ^= 0x01; - ipixels += step; - - *obytes++ = b; - - width -= 8; - } - - /* - * Then do the last N bytes (N < 8)... - */ - - b = clearto; - - switch (width) - { - case 7 : - if (ipixels[6 * step]) - b ^= 0x02; - case 6 : - if (ipixels[5 * step]) - b ^= 0x04; - case 5 : - if (ipixels[4 * step]) - b ^= 0x08; - case 4 : - if (ipixels[3 * step]) - b ^= 0x10; - case 3 : - if (ipixels[2 * step]) - b ^= 0x20; - case 2 : - if (ipixels[1 * step]) - b ^= 0x40; - case 1 : - if (ipixels[0]) - b ^= 0x80; - *obytes = b; - break; - } -} - - -/* - * 'cupsPackHorizontal2()' - Pack 2-bit pixels horizontally... - */ - -void -cupsPackHorizontal2(const unsigned char *ipixels, /* I - Input pixels */ - unsigned char *obytes, /* O - Output bytes */ - int width, /* I - Number of pixels */ - const int step) /* I - Stepping value */ -{ - register unsigned char b; /* Current byte */ - - - /* - * Do whole bytes first... - */ - - while (width > 3) - { - b = *ipixels; - ipixels += step; - b = (b << 2) | *ipixels; - ipixels += step; - b = (b << 2) | *ipixels; - ipixels += step; - b = (b << 2) | *ipixels; - ipixels += step; - - *obytes++ = b; - - width -= 4; - } - - /* - * Then do the last N bytes (N < 4)... - */ - - b = 0; - - switch (width) - { - case 3 : - b = ipixels[2 * step]; - case 2 : - b = (b << 2) | ipixels[step]; - case 1 : - b = (b << 2) | ipixels[0]; - *obytes = b << (8 - 2 * width); - break; - } -} - - -/* - * 'cupsPackHorizontalBit()' - Pack pixels horizontally by bit... - */ - -void -cupsPackHorizontalBit(const unsigned char *ipixels, /* I - Input pixels */ - unsigned char *obytes, /* O - Output bytes */ - int width, /* I - Number of pixels */ - const unsigned char clearto, /* I - Initial value of bytes */ - const unsigned char bit) /* I - Bit to check */ -{ - register unsigned char b; /* Current byte */ - - - /* - * Do whole bytes first... - */ - - while (width > 7) - { - b = clearto; - - if (*ipixels++ & bit) - b ^= 0x80; - if (*ipixels++ & bit) - b ^= 0x40; - if (*ipixels++ & bit) - b ^= 0x20; - if (*ipixels++ & bit) - b ^= 0x10; - if (*ipixels++ & bit) - b ^= 0x08; - if (*ipixels++ & bit) - b ^= 0x04; - if (*ipixels++ & bit) - b ^= 0x02; - if (*ipixels++ & bit) - b ^= 0x01; - - *obytes++ = b; - - width -= 8; - } - - /* - * Then do the last N bytes (N < 8)... - */ - - b = clearto; - - switch (width) - { - case 7 : - if (ipixels[6] & bit) - b ^= 0x02; - case 6 : - if (ipixels[5] & bit) - b ^= 0x04; - case 5 : - if (ipixels[4] & bit) - b ^= 0x08; - case 4 : - if (ipixels[3] & bit) - b ^= 0x10; - case 3 : - if (ipixels[2] & bit) - b ^= 0x20; - case 2 : - if (ipixels[1] & bit) - b ^= 0x40; - case 1 : - if (ipixels[0] & bit) - b ^= 0x80; - *obytes = b; - break; - } -} - - -/* - * 'cupsPackVertical()' - Pack pixels vertically... - */ - -void -cupsPackVertical(const unsigned char *ipixels, /* I - Input pixels */ - unsigned char *obytes, /* O - Output bytes */ - int width, /* I - Number of input pixels */ - const unsigned char bit, /* I - Output bit */ - const int step) /* I - Number of bytes between columns */ -{ - /* - * Loop through the entire array... - */ - - while (width > 7) - { - if (*ipixels++) - *obytes ^= bit; - obytes += step; - if (*ipixels++) - *obytes ^= bit; - obytes += step; - if (*ipixels++) - *obytes ^= bit; - obytes += step; - if (*ipixels++) - *obytes ^= bit; - obytes += step; - if (*ipixels++) - *obytes ^= bit; - obytes += step; - if (*ipixels++) - *obytes ^= bit; - obytes += step; - if (*ipixels++) - *obytes ^= bit; - obytes += step; - if (*ipixels++) - *obytes ^= bit; - obytes += step; - - width -= 8; - } - - while (width > 0) - { - if (*ipixels++) - *obytes ^= bit; - - obytes += step; - width --; - } -} - - -/* - * End of "$Id: pack.c 7306 2008-02-15 00:52:38Z mike $". - */ |