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Diffstat (limited to 'ext/gd/libgd/gd_wbmp.c')
| -rw-r--r-- | ext/gd/libgd/gd_wbmp.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/ext/gd/libgd/gd_wbmp.c b/ext/gd/libgd/gd_wbmp.c new file mode 100644 index 0000000..b81eed8 --- /dev/null +++ b/ext/gd/libgd/gd_wbmp.c @@ -0,0 +1,210 @@ +/* + WBMP: Wireless Bitmap Type 0: B/W, Uncompressed Bitmap + Specification of the WBMP format can be found in the file: + SPEC-WAESpec-19990524.pdf + You can download the WAP specification on: http://www.wapforum.com/ + + gd_wbmp.c + + Copyright (C) Johan Van den Brande (johan@vandenbrande.com) + + Fixed: gdImageWBMPPtr, gdImageWBMP + + Recoded: gdImageWBMPCtx for use with my wbmp library + (wbmp library included, but you can find the latest distribution + at http://www.vandenbrande.com/wbmp) + + Implemented: gdImageCreateFromWBMPCtx, gdImageCreateFromWBMP + + --------------------------------------------------------------------------- + + Parts of this code are from Maurice Smurlo. + + + ** Copyright (C) Maurice Szmurlo --- T-SIT --- January 2000 + ** (Maurice.Szmurlo@info.unicaen.fr) + + ** Permission to use, copy, modify, and distribute this software and its + ** documentation for any purpose and without fee is hereby granted, provided + ** that the above copyright notice appear in all copies and that both that + ** copyright notice and this permission notice appear in supporting + ** documentation. This software is provided "as is" without express or + ** implied warranty. + + --------------------------------------------------------------------------- + Parts od this code are inspired by 'pbmtowbmp.c' and 'wbmptopbm.c' by + Terje Sannum <terje@looplab.com>. + ** + ** Permission to use, copy, modify, and distribute this software and its + ** documentation for any purpose and without fee is hereby granted, provided + ** that the above copyright notice appear in all copies and that both that + ** copyright notice and this permission notice appear in supporting + ** documentation. This software is provided "as is" without express or + ** implied warranty. + ** + --------------------------------------------------------------------------- + + Todo: + + gdCreateFromWBMP function for reading WBMP files + + ---------------------------------------------------------------------------- + */ + +#include <gd.h> +#include <gdfonts.h> +#include <stdio.h> +#include <stdlib.h> +#include <limits.h> + +#include "wbmp.h" + + +/* gd_putout + ** --------- + ** Wrapper around gdPutC for use with writewbmp + ** + */ +void gd_putout (int i, void *out) +{ + gdPutC(i, (gdIOCtx *) out); +} + + +/* gd_getin + ** -------- + ** Wrapper around gdGetC for use with readwbmp + ** + */ +int gd_getin (void *in) +{ + return (gdGetC((gdIOCtx *) in)); +} + + +/* gdImageWBMPCtx + ** -------------- + ** Write the image as a wbmp file + ** Parameters are: + ** image: gd image structure; + ** fg: the index of the foreground color. any other value will be + ** considered as background and will not be written + ** out: the stream where to write + */ +void gdImageWBMPCtx (gdImagePtr image, int fg, gdIOCtx * out) +{ + int x, y, pos; + Wbmp *wbmp; + + /* create the WBMP */ + if ((wbmp = createwbmp (gdImageSX (image), gdImageSY (image), WBMP_WHITE)) == NULL) { + php_gd_error("Could not create WBMP"); + } + + /* fill up the WBMP structure */ + pos = 0; + for (y = 0; y < gdImageSY(image); y++) { + for (x = 0; x < gdImageSX(image); x++) { + if (gdImageGetPixel (image, x, y) == fg) { + wbmp->bitmap[pos] = WBMP_BLACK; + } + pos++; + } + } + + /* write the WBMP to a gd file descriptor */ + if (writewbmp (wbmp, &gd_putout, out)) { + php_gd_error("Could not save WBMP"); + } + /* des submitted this bugfix: gdFree the memory. */ + freewbmp(wbmp); +} + +/* gdImageCreateFromWBMPCtx + ** ------------------------ + ** Create a gdImage from a WBMP file input from an gdIOCtx + */ +gdImagePtr gdImageCreateFromWBMPCtx (gdIOCtx * infile) +{ + /* FILE *wbmp_file; */ + Wbmp *wbmp; + gdImagePtr im = NULL; + int black, white; + int col, row, pos; + + if (readwbmp (&gd_getin, infile, &wbmp)) { + return NULL; + } + + if (!(im = gdImageCreate (wbmp->width, wbmp->height))) { + freewbmp (wbmp); + return NULL; + } + + /* create the background color */ + white = gdImageColorAllocate(im, 255, 255, 255); + /* create foreground color */ + black = gdImageColorAllocate(im, 0, 0, 0); + + /* fill in image (in a wbmp 1 = white/ 0 = black) */ + pos = 0; + for (row = 0; row < wbmp->height; row++) { + for (col = 0; col < wbmp->width; col++) { + if (wbmp->bitmap[pos++] == WBMP_WHITE) { + gdImageSetPixel(im, col, row, white); + } else { + gdImageSetPixel(im, col, row, black); + } + } + } + + freewbmp(wbmp); + + return im; +} + +/* gdImageCreateFromWBMP + ** --------------------- + */ +gdImagePtr gdImageCreateFromWBMP (FILE * inFile) +{ + gdImagePtr im; + gdIOCtx *in = gdNewFileCtx(inFile); + im = gdImageCreateFromWBMPCtx(in); + in->gd_free(in); + + return im; +} + +gdImagePtr gdImageCreateFromWBMPPtr (int size, void *data) +{ + gdImagePtr im; + gdIOCtx *in = gdNewDynamicCtxEx(size, data, 0); + im = gdImageCreateFromWBMPCtx(in); + in->gd_free(in); + return im; +} + +/* gdImageWBMP + ** ----------- + */ +void gdImageWBMP (gdImagePtr im, int fg, FILE * outFile) +{ + gdIOCtx *out = gdNewFileCtx(outFile); + gdImageWBMPCtx(im, fg, out); + out->gd_free(out); +} + +/* gdImageWBMPPtr + ** -------------- + */ +void * gdImageWBMPPtr (gdImagePtr im, int *size, int fg) +{ + void *rv; + gdIOCtx *out = gdNewDynamicCtx(2048, NULL); + gdImageWBMPCtx(im, fg, out); + rv = gdDPExtractData(out, size); + out->gd_free(out); + + return rv; +} |