|
Packit |
ed3af9 |
/* $Id$ */
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
#include "gd.h"
|
|
Packit |
ed3af9 |
#include <stdio.h>
|
|
Packit |
ed3af9 |
#include <stdlib.h>
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
void save_png(gdImagePtr im, const char *filename)
|
|
Packit |
ed3af9 |
{
|
|
Packit |
ed3af9 |
FILE *fp;
|
|
Packit |
ed3af9 |
fp = fopen(filename, "wb");
|
|
Packit |
ed3af9 |
if (!fp) {
|
|
Packit |
ed3af9 |
fprintf(stderr, "Can't save png image %s\n", filename);
|
|
Packit |
ed3af9 |
return;
|
|
Packit |
ed3af9 |
}
|
|
Packit |
ed3af9 |
#ifdef HAVE_LIBPNG
|
|
Packit |
ed3af9 |
gdImagePng(im, fp);
|
|
Packit |
ed3af9 |
#else
|
|
Packit |
ed3af9 |
printf("No PNG support. Cannot save image.\n");
|
|
Packit |
ed3af9 |
#endif
|
|
Packit |
ed3af9 |
fclose(fp);
|
|
Packit |
ed3af9 |
}
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
int main()
|
|
Packit |
ed3af9 |
{
|
|
Packit |
ed3af9 |
#ifdef HAVE_JPEG
|
|
Packit |
ed3af9 |
gdImagePtr im, im2;
|
|
Packit |
ed3af9 |
FILE *fp;
|
|
Packit |
ed3af9 |
char path[2048];
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
fp=fopen("resampledbug.jpeg", "rb");
|
|
Packit |
ed3af9 |
if (!fp) {
|
|
Packit |
ed3af9 |
fprintf(stderr, "Can't load /home/pierre/IM3801.jpg\n");
|
|
Packit |
ed3af9 |
return 1;
|
|
Packit |
ed3af9 |
}
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
im = gdImageCreateFromJpeg(fp);
|
|
Packit |
ed3af9 |
fclose(fp);
|
|
Packit |
ed3af9 |
if (!im) {
|
|
Packit |
ed3af9 |
fprintf(stderr, "Can't load TIFF image %s\n", path);
|
|
Packit |
ed3af9 |
return 1;
|
|
Packit |
ed3af9 |
}
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
im2 = gdImageNeuQuant(im, 256, 3);
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
if (im2) {
|
|
Packit |
ed3af9 |
gdImageSaveAlpha(im2, 1);
|
|
Packit |
ed3af9 |
save_png(im2, "a_nnquant.png");
|
|
Packit |
ed3af9 |
gdImageDestroy(im2);
|
|
Packit |
ed3af9 |
} else {
|
|
Packit |
ed3af9 |
printf("neu quant failed.\n");
|
|
Packit |
ed3af9 |
}
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
gdImageTrueColorToPalette(im, 1, 256);
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
gdImageSaveAlpha(im, 1);
|
|
Packit |
ed3af9 |
save_png(im, "a_jquant_dither.png");
|
|
Packit |
ed3af9 |
|
|
Packit |
ed3af9 |
gdImageDestroy(im);
|
|
Packit |
ed3af9 |
#else
|
|
Packit |
ed3af9 |
printf("JPEG support is required for this example. Please recompile GD with JPEG or change this example to use another format as input.");
|
|
Packit |
ed3af9 |
return 1;
|
|
Packit |
ed3af9 |
#endif
|
|
Packit |
ed3af9 |
return 0;
|
|
Packit |
ed3af9 |
}
|