92 lines
1.9 KiB
C
92 lines
1.9 KiB
C
#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#ifndef _WIN32
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#include <unistd.h> /* For unlink function */
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#endif
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#include "gd.h"
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/* A short program which converts a .png file into a .gd file, for
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your convenience in creating images on the fly from a
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basis image that must be loaded quickly. The .gd format
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is not intended to be a general-purpose format. */
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void CompareImages(char *msg, gdImagePtr im1, gdImagePtr im2);
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int main(int argc, char **argv)
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{
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gdImagePtr im1, im2;
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FILE *in;
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if (argc != 3) {
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fprintf(stderr, "Usage: gdcmpgif filename.gif filename.gif\n");
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exit(1);
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}
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in = fopen(argv[1], "rb");
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if (!in) {
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fprintf(stderr, "Input file does not exist!\n");
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exit(1);
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}
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im1 = gdImageCreateFromGif(in);
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fclose(in);
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if (!im1) {
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fprintf(stderr, "Input is not in GIF format!\n");
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exit(1);
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}
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in = fopen(argv[2], "rb");
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if (!in) {
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fprintf(stderr, "Input file 2 does not exist!\n");
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exit(1);
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}
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im2 = gdImageCreateFromGif(in);
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fclose(in);
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if (!im2) {
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fprintf(stderr, "Input 2 is not in GIF format!\n");
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exit(1);
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}
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CompareImages("gdcmpgif", im1, im2);
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gdImageDestroy(im1);
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gdImageDestroy(im2);
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return 0;
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}
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void CompareImages(char *msg, gdImagePtr im1, gdImagePtr im2)
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{
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int cmpRes;
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cmpRes = gdImageCompare(im1, im2);
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if (cmpRes & GD_CMP_IMAGE) {
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printf("%%%s: ERROR images differ: BAD\n",msg);
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} else if (cmpRes != 0) {
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printf("%%%s: WARNING images differ: WARNING - Probably OK\n",msg);
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} else {
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printf("%%%s: OK\n",msg);
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return;
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}
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if (cmpRes & (GD_CMP_SIZE_X + GD_CMP_SIZE_Y)) {
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printf("-%s: INFO image sizes differ\n",msg);
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}
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if (cmpRes & GD_CMP_NUM_COLORS) {
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printf("-%s: INFO number of palette entries differ %d Vs. %d\n",msg,
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im1->colorsTotal, im2->colorsTotal);
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}
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if (cmpRes & GD_CMP_COLOR) {
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printf("-%s: INFO actual colours of pixels differ\n",msg);
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}
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}
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