+++ /dev/null
-/*
-
-Copyright 1990, 1994, 1998 The Open Group
-
-All Rights Reserved.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-*/
-/* $XFree86: xc/lib/font/util/utilbitmap.c,v 1.3 1999/08/22 08:58:58 dawes Exp $ */
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-
-#include <ft2build.h>
-#include "pcfutil.h"
-
-
- /* Utility functions for reformatting font bitmaps */
-
- static const unsigned char _reverse_byte[0x100] =
- {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
- };
-
- /*
- * Invert bit order within each BYTE of an array.
- */
-
- void
- BitOrderInvert( unsigned char* buf,
- int nbytes )
- {
- const unsigned char* rev = _reverse_byte;
-
-
- for ( ; --nbytes >= 0; buf++ )
- *buf = rev[*buf];
- }
-
-
- /*
- * Invert byte order within each 16-bits of an array.
- */
-
- void
- TwoByteSwap( unsigned char* buf,
- int nbytes )
- {
- unsigned char c;
-
-
- for ( ; nbytes > 0; nbytes -= 2, buf += 2 )
- {
- c = buf[0];
- buf[0] = buf[1];
- buf[1] = c;
- }
- }
-
- /*
- * Invert byte order within each 32-bits of an array.
- */
-
- void
- FourByteSwap( unsigned char* buf,
- int nbytes )
- {
- unsigned char c;
-
-
- for ( ; nbytes > 0; nbytes -= 4, buf += 4 )
- {
- c = buf[0];
- buf[0] = buf[3];
- buf[3] = c;
-
- c = buf[1];
- buf[1] = buf[2];
- buf[2] = c;
- }
- }
-
-
- /*
- * Repad a bitmap.
- */
-
- int
- RepadBitmap( char* pSrc,
- char* pDst,
- unsigned int srcPad,
- unsigned int dstPad,
- int width,
- int height )
- {
- int srcWidthBytes, dstWidthBytes;
- int row, col;
- char *pTmpSrc, *pTmpDst;
-
-
- switch ( srcPad )
- {
- case 1:
- srcWidthBytes = ( width + 7 ) >> 3;
- break;
-
- case 2:
- srcWidthBytes = ( ( width + 15 ) >> 4 ) << 1;
- break;
-
- case 4:
- srcWidthBytes = ( ( width + 31 ) >> 5 ) << 2;
- break;
-
- case 8:
- srcWidthBytes = ( ( width + 63 ) >> 6 ) << 3;
- break;
-
- default:
- return 0;
- }
-
- switch ( dstPad )
- {
- case 1:
- dstWidthBytes = ( width + 7 ) >> 3;
- break;
-
- case 2:
- dstWidthBytes = ( ( width + 15 ) >> 4 ) << 1;
- break;
-
- case 4:
- dstWidthBytes = ( ( width + 31 ) >> 5 ) << 2;
- break;
-
- case 8:
- dstWidthBytes = ( ( width + 63 ) >> 6 ) << 3;
- break;
-
- default:
- return 0;
- }
-
- width = srcWidthBytes;
- if ( width > dstWidthBytes )
- width = dstWidthBytes;
-
- pTmpSrc= pSrc;
- pTmpDst= pDst;
-
- for ( row = 0; row < height; row++ )
- {
- for ( col = 0; col < width; col++ )
- *pTmpDst++ = *pTmpSrc++;
-
- while ( col < dstWidthBytes )
- {
- *pTmpDst++ = '\0';
- col++;
- }
- pTmpSrc += srcWidthBytes - width;
- }
-
- return dstWidthBytes * height;
- }
-
-
-/* END */
projects / rrdtool.git / blobdiff