summaryrefslogtreecommitdiff
path: root/ext/gd/libgd/webpng.c
diff options
context:
space:
mode:
Diffstat (limited to 'ext/gd/libgd/webpng.c')
-rw-r--r--ext/gd/libgd/webpng.c289
1 files changed, 0 insertions, 289 deletions
diff --git a/ext/gd/libgd/webpng.c b/ext/gd/libgd/webpng.c
deleted file mode 100644
index f3c35e306f..0000000000
--- a/ext/gd/libgd/webpng.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/* Bring in the gd library functions */
-#include "gd.h"
-
-/* Bring in standard I/O and string manipulation functions */
-#include <stdio.h>
-#include <stdlib.h> /* for atoi() */
-#include <string.h>
-
-#ifdef _WIN32
-#include <process.h>
-int
-getpid ()
-{
- return _getpid ();
-}
-#else
-#include <unistd.h> /* for getpid(), unlink() */
-#endif
-int
-main (int argc, char **argv)
-{
- FILE *in;
- FILE *out;
- char outFn[20];
- int useStdinStdout = 0;
-
- /* Declare our image pointer */
- gdImagePtr im = 0;
- int i;
- /* We'll clear 'no' once we know the user has made a
- reasonable request. */
- int no = 1;
- /* We'll set 'write' once we know the user's request
- requires that the image be written back to disk. */
- int write = 0;
- /* C programs always get at least one argument; we want at
- least one more (the image), more in practice. */
- if (argc < 2 || !strcmp (argv[1], "--help"))
- {
- no = 1;
- goto usage;
- }
-
- /* The last argument should be the image. Open the file. */
- if (strcmp ("-", argv[argc - 1]) == 0)
- { /* - is synonymous with STDIN */
- useStdinStdout = 1;
- in = stdin;
- }
- else
- {
- in = fopen (argv[argc - 1], "rb");
- }
- if (!in)
- {
- fprintf (stderr,
- "Error: can't open file %s.\n", argv[argc - 1]);
- exit (1);
- }
- /* Now load the image. */
- im = gdImageCreateFromPng (in);
- fclose (in);
- /* If the load failed, it must not be a PNG file. */
- if (!im)
- {
- fprintf (stderr,
- "Error: %s is not a valid PNG file.\n", argv[argc - 1]);
- exit (1);
- }
- /* Consider each argument in turn. */
- for (i = 1; (i < (argc - 1)); i++)
- {
- /* -i turns on and off interlacing. */
- if (!strcmp (argv[i], "--help"))
- {
- /* Every program should use this for help! :) */
- no = 1;
- goto usage;
- }
- else if (!strcmp (argv[i], "-i"))
- {
- if (i == (argc - 2))
- {
- fprintf (stderr,
- "Error: -i specified without y or n.\n");
- no = 1;
- goto usage;
- }
- if (!strcmp (argv[i + 1], "y"))
- {
- /* Set interlace. */
- gdImageInterlace (im, 1);
- }
- else if (!strcmp (argv[i + 1], "n"))
- {
- /* Clear interlace. */
- gdImageInterlace (im, 0);
- }
- else
- {
- fprintf (stderr,
- "Error: -i specified without y or n.\n");
- no = 1;
- goto usage;
- }
- i++;
- no = 0;
- write = 1;
- }
- else if (!strcmp (argv[i], "-t"))
- {
- /* Set transparent index (or none). */
- int index;
- if (i == (argc - 2))
- {
- fprintf (stderr,
- "Error: -t specified without a color table index.\n");
- no = 1;
- goto usage;
- }
- if (!strcmp (argv[i + 1], "none"))
- {
- /* -1 means not transparent. */
- gdImageColorTransparent (im, -1);
- }
- else
- {
- /* OK, get an integer and set the index. */
- index = atoi (argv[i + 1]);
- gdImageColorTransparent (im, index);
- }
- i++;
- write = 1;
- no = 0;
- }
- else if (!strcmp (argv[i], "-l"))
- {
- /* List the colors in the color table. */
- int j;
- if (!im->trueColor)
- {
- /* Tabs used below. */
- printf ("Index Red Green Blue Alpha\n");
- for (j = 0; (j < gdImageColorsTotal (im)); j++)
- {
- /* Use access macros to learn colors. */
- printf ("%d %d %d %d %d\n",
- j,
- gdImageRed (im, j),
- gdImageGreen (im, j),
- gdImageBlue (im, j),
- gdImageAlpha (im, j));
- }
- }
- else
- {
- printf ("Truecolor image, no palette entries to list.\n");
- }
- no = 0;
- }
- else if (!strcmp (argv[i], "-d"))
- {
- /* Output dimensions, etc. */
- int t;
- printf ("Width: %d Height: %d Colors: %d\n",
- gdImageSX (im), gdImageSY (im),
- gdImageColorsTotal (im));
- t = gdImageGetTransparent (im);
- if (t != (-1))
- {
- printf ("First 100%% transparent index: %d\n", t);
- }
- else
- {
- /* -1 means the image is not transparent. */
- printf ("First 100%% transparent index: none\n");
- }
- if (gdImageGetInterlaced (im))
- {
- printf ("Interlaced: yes\n");
- }
- else
- {
- printf ("Interlaced: no\n");
- }
- no = 0;
- }
- else if (!strcmp(argv[i], "-a"))
- {
- int maxx, maxy, x, y, alpha, pix, nalpha = 0;
-
- maxx = gdImageSX(im);
- maxy = gdImageSY(im);
-
- printf("alpha channel information:\n");
-
- if (im->trueColor) {
- for (y = 0; y < maxy; y++) {
- for (x = 0; x < maxx; x++) {
- pix = gdImageGetPixel(im, x, y);
- alpha = gdTrueColorGetAlpha(pix);
-
- if (alpha > gdAlphaOpaque) {
- /* Use access macros to learn colors. */
- printf ("%d %d %d %d\n",
- gdTrueColorGetRed(pix),
- gdTrueColorGetGreen(pix),
- gdTrueColorGetBlue(pix),
- alpha);
- nalpha++;
- }
-
- }
- }
- }
- else
- printf("NOT a true color image\n");
- no = 0;
- printf("%d alpha channels\n", nalpha);
-
- }
- else
- {
- fprintf (stderr, "Unknown argument: %s\n", argv[i]);
- break;
- }
- }
-usage:
- if (no)
- {
- /* If the command failed, output an explanation. */
- fprintf (stderr,
- "Usage: webpng [-i y|n ] [-l] [-t index|none ] [-d] pngname.png\n"
-
- " -i [y|n] Turns on/off interlace\n"
- " -l Prints the table of color indexes\n"
- " -t [index] Set the transparent color to the specified index (0-255 or \"none\")\n"
- " -d Reports the dimensions and other characteristics of the image.\n"
- " -a Prints all alpha channels that are not 100%% opaque.\n"
- "\n"
- "If you specify '-' as the input file, stdin/stdout will be used input/output.\n"
- );
- }
- if (write)
- {
- if (useStdinStdout)
- {
- out = stdout;
- }
- else
- {
- /* Open a temporary file. */
-
- /* "temp.tmp" is not good temporary filename. */
- sprintf (outFn, "webpng.tmp%d", getpid ());
- out = fopen (outFn, "wb");
-
- if (!out)
- {
- fprintf (stderr,
- "Unable to write to %s -- exiting\n", outFn);
- exit (1);
- }
- }
-
- /* Write the new PNG. */
- gdImagePng (im, out);
-
- if (!useStdinStdout)
- {
- fclose (out);
- /* Erase the old PNG. */
- unlink (argv[argc - 1]);
- /* Rename the new to the old. */
- if (rename (outFn, argv[argc - 1]) != 0)
- {
- perror ("rename");
- exit (1);
- }
- }
- }
- /* Delete the image from memory. */
- if (im)
- {
- gdImageDestroy (im);
- }
- /* All's well that ends well. */
- return 0;
-}
View Lorry Controller Status