#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef _WIN32
#include <process.h>
int
unlink (const char *filename)
{
return _unlink (filename);
}
#else
#include <unistd.h>
#endif
#include "gd.h"
void CompareImages (char *msg, gdImagePtr im1, gdImagePtr im2);
static int freadWrapper (void *context, char *buf, int len);
static int fwriteWrapper (void *context, const char *buffer, int len);
int
main (int argc, char **argv)
{
#ifdef HAVE_LIBPNG
gdImagePtr im, ref, im2, im3;
FILE *in, *out;
void *iptr;
int sz;
gdIOCtxPtr ctx;
char of[256];
int colRed, colBlu;
gdSource imgsrc;
gdSink imgsnk;
int foreground;
int i;
if (argc != 2)
{
fprintf (stderr, "Usage: gdtest filename.png\n");
exit (1);
}
in = fopen (argv[1], "rb");
if (!in)
{
fprintf (stderr, "Input file does not exist!\n");
exit (1);
}
im = gdImageCreateFromPng (in);
rewind (in);
ref = gdImageCreateFromPng (in);
fclose (in);
printf ("Reference File has %d Palette entries\n", ref->colorsTotal);
CompareImages ("Initial Versions", ref, im);
sprintf (of, "%s.png", argv[1]);
out = fopen (of, "wb");
gdImagePng (im, out);
fclose (out);
in = fopen (of, "rb");
if (!in)
{
fprintf (stderr, "PNG Output file does not exist!\n");
exit (1);
}
im2 = gdImageCreateFromPng (in);
fclose (in);
CompareImages ("GD->PNG File->GD", ref, im2);
unlink (of);
gdImageDestroy (im2);
iptr = gdImagePngPtr (im, &sz);
ctx = gdNewDynamicCtx (sz, iptr);
im2 = gdImageCreateFromPngCtx (ctx);
CompareImages ("GD->PNG ptr->GD", ref, im2);
gdImageDestroy (im2);
ctx->gd_free (ctx);
sprintf (of, "%s.gd2", argv[1]);
out = fopen (of, "wb");
gdImageGd2 (im, out, 128, 2);
fclose (out);
in = fopen (of, "rb");
if (!in)
{
fprintf (stderr, "GD2 Output file does not exist!\n");
exit (1);
}
im2 = gdImageCreateFromGd2 (in);
fclose (in);
CompareImages ("GD->GD2 File->GD", ref, im2);
unlink (of);
gdImageDestroy (im2);
iptr = gdImageGd2Ptr (im, 128, 2, &sz);
ctx = gdNewDynamicCtx (sz, iptr);
im2 = gdImageCreateFromGd2Ctx (ctx);
CompareImages ("GD->GD2 ptr->GD", ref, im2);
gdImageDestroy (im2);
ctx->gd_free (ctx);
sprintf (of, "%s.gd", argv[1]);
out = fopen (of, "wb");
gdImageGd (im, out);
fclose (out);
in = fopen (of, "rb");
if (!in)
{
fprintf (stderr, "GD Output file does not exist!\n");
exit (1);
}
im2 = gdImageCreateFromGd (in);
fclose (in);
CompareImages ("GD->GD File->GD", ref, im2);
unlink (of);
gdImageDestroy (im2);
iptr = gdImageGdPtr (im, &sz);
ctx = gdNewDynamicCtx (sz, iptr);
im2 = gdImageCreateFromGdCtx (ctx);
CompareImages ("GD->GD ptr->GD", ref, im2);
gdImageDestroy (im2);
ctx->gd_free (ctx);
in = fopen (argv[1], "rb");
imgsrc.source = freadWrapper;
imgsrc.context = in;
im2 = gdImageCreateFromPngSource (&imgsrc);
fclose (in);
if (im2 == NULL)
{
printf
("GD Source: ERROR Null returned by gdImageCreateFromPngSource\n");
}
else
{
CompareImages ("GD Source", ref, im2);
gdImageDestroy (im2);
};
sprintf (of, "%s.snk", argv[1]);
out = fopen (of, "wb");
imgsnk.sink = fwriteWrapper;
imgsnk.context = out;
gdImagePngToSink (im, &imgsnk);
fclose (out);
in = fopen (of, "rb");
if (!in)
{
fprintf (stderr,
"GD Sink: ERROR - GD Sink Output file does not exist!\n");
}
else
{
im2 = gdImageCreateFromPng (in);
fclose (in);
CompareImages ("GD Sink", ref, im2);
gdImageDestroy (im2);
};
unlink (of);
in = fopen ("test/gdtest_200_300_150_100.png", "rb");
if (!in)
{
fprintf (stderr, "gdtest_200_300_150_100.png does not exist!\n");
exit (1);
}
im2 = gdImageCreateFromPng (in);
fclose (in);
in = fopen ("test/gdtest.gd2", "rb");
if (!in)
{
fprintf (stderr, "gdtest.gd2 does not exist!\n");
exit (1);
}
im3 = gdImageCreateFromGd2Part (in, 200, 300, 150, 100);
fclose (in);
CompareImages ("GD2Part (gdtest_200_300_150_100.png, gdtest.gd2(part))",
im2, im3);
gdImageDestroy (im2);
gdImageDestroy (im3);
in = fopen ("test/gdtest.png", "rb");
if (!in)
{
fprintf (stderr, "gdtest.png does not exist!\n");
exit (1);
}
im2 = gdImageCreateFromPng (in);
fclose (in);
im3 = gdImageCreate (100, 60);
colRed = gdImageColorAllocate (im3, 255, 0, 0);
colBlu = gdImageColorAllocate (im3, 0, 0, 255);
gdImageFilledRectangle (im3, 0, 0, 49, 30, colRed);
gdImageFilledRectangle (im3, 50, 30, 99, 59, colBlu);
gdImageCopyMerge (im2, im3, 150, 200, 10, 10, 90, 50, 50);
gdImageCopyMerge (im2, im3, 180, 70, 10, 10, 90, 50, 50);
gdImageCopyMergeGray (im2, im3, 250, 160, 10, 10, 90, 50, 50);
gdImageCopyMergeGray (im2, im3, 80, 70, 10, 10, 90, 50, 50);
gdImageDestroy (im3);
in = fopen ("test/gdtest_merge.png", "rb");
if (!in)
{
fprintf (stderr, "gdtest_merge.png does not exist!\n");
exit (1);
}
im3 = gdImageCreateFromPng (in);
fclose (in);
printf ("[Merged Image has %d colours]\n", im2->colorsTotal);
CompareImages ("Merged (gdtest.png, gdtest_merge.png)", im2, im3);
gdImageDestroy (im2);
gdImageDestroy (im3);
#ifdef HAVE_LIBJPEG
out = fopen ("test/gdtest.jpg", "wb");
if (!out)
{
fprintf (stderr, "Can't create file test/gdtest.jpg.\n");
exit (1);
}
gdImageJpeg (im, out, -1);
fclose (out);
in = fopen ("test/gdtest.jpg", "rb");
if (!in)
{
fprintf (stderr, "Can't open file test/gdtest.jpg.\n");
exit (1);
}
im2 = gdImageCreateFromJpeg (in);
fclose (in);
if (!im2)
{
fprintf (stderr, "gdImageCreateFromJpeg failed.\n");
exit (1);
}
gdImageDestroy (im2);
printf ("Created test/gdtest.jpg successfully. Compare this image\n"
"to the input image manually. Some difference must be\n"
"expected as JPEG is a lossy file format.\n");
#endif
fprintf (stderr,
"NOTE: the WBMP output image will NOT match the original unless the original\n"
"is also black and white. This is OK!\n");
foreground = gdImageColorClosest (im, 0, 0, 0);
fprintf (stderr, "Foreground index is %d\n", foreground);
if (foreground == -1)
{
fprintf (stderr, "Source image has no colors, skipping wbmp test.\n");
}
else
{
out = fopen ("test/gdtest.wbmp", "wb");
if (!out)
{
fprintf (stderr, "Can't create file test/gdtest.wbmp.\n");
exit (1);
}
gdImageWBMP (im, foreground, out);
fclose (out);
in = fopen ("test/gdtest.wbmp", "rb");
if (!in)
{
fprintf (stderr, "Can't open file test/gdtest.wbmp.\n");
exit (1);
}
im2 = gdImageCreateFromWBMP (in);
fprintf (stderr, "WBMP has %d colors\n", gdImageColorsTotal (im2));
fprintf (stderr, "WBMP colors are:\n");
for (i = 0; (i < gdImageColorsTotal (im2)); i++)
{
fprintf (stderr, "%02X%02X%02X\n",
gdImageRed (im2, i),
gdImageGreen (im2, i), gdImageBlue (im2, i));
}
fclose (in);
if (!im2)
{
fprintf (stderr, "gdImageCreateFromWBMP failed.\n");
exit (1);
}
CompareImages ("WBMP test (gdtest.png, gdtest.wbmp)", ref, im2);
out = fopen ("test/gdtest_wbmp_to_png.png", "wb");
if (!out)
{
fprintf (stderr,
"Can't create file test/gdtest_wbmp_to_png.png.\n");
exit (1);
}
gdImagePng (im2, out);
fclose (out);
gdImageDestroy (im2);
}
gdImageDestroy (im);
gdImageDestroy (ref);
#else
fprintf (stderr, "No PNG library support.\n");
#endif
return 0;
}
void
CompareImages (char *msg, gdImagePtr im1, gdImagePtr im2)
{
int cmpRes;
cmpRes = gdImageCompare (im1, im2);
if (cmpRes & GD_CMP_IMAGE)
{
printf ("%%%s: ERROR images differ: BAD\n", msg);
}
else if (cmpRes != 0)
{
printf ("%%%s: WARNING images differ: WARNING - Probably OK\n", msg);
}
else
{
printf ("%%%s: OK\n", msg);
return;
}
if (cmpRes & (GD_CMP_SIZE_X + GD_CMP_SIZE_Y))
{
printf ("-%s: INFO image sizes differ\n", msg);
}
if (cmpRes & GD_CMP_NUM_COLORS)
{
printf ("-%s: INFO number of pallette entries differ %d Vs. %d\n", msg,
im1->colorsTotal, im2->colorsTotal);
}
if (cmpRes & GD_CMP_COLOR)
{
printf ("-%s: INFO actual colours of pixels differ\n", msg);
}
}
static int
freadWrapper (void *context, char *buf, int len)
{
int got = fread (buf, 1, len, (FILE *) context);
return got;
}
static int
fwriteWrapper (void *context, const char *buffer, int len)
{
return fwrite (buffer, 1, len, (FILE *) context);
}