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#include "gd.h"
#include <string.h>
#define PI 3.141592
#define DEG2RAD(x) ((x)*PI/180.)
#define MAX(x,y) ((x) > (y) ? (x) : (y))
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#define MAX4(x,y,z,w) \
((MAX((x),(y))) > (MAX((z),(w))) ? (MAX((x),(y))) : (MAX((z),(w))))
#define MIN4(x,y,z,w) \
((MIN((x),(y))) < (MIN((z),(w))) ? (MIN((x),(y))) : (MIN((z),(w))))
#define MAXX(x) MAX4(x[0],x[2],x[4],x[6])
#define MINX(x) MIN4(x[0],x[2],x[4],x[6])
#define MAXY(x) MAX4(x[1],x[3],x[5],x[7])
#define MINY(x) MIN4(x[1],x[3],x[5],x[7])
int
main (int argc, char *argv[])
{
#ifndef HAVE_LIBFREETYPE
fprintf (stderr, "gd was not compiled with HAVE_LIBFREETYPE defined.\n");
fprintf (stderr, "Install the FreeType library, including the\n");
fprintf (stderr, "header files. Then edit the gd Makefile, type\n");
fprintf (stderr, "make clean, and type make again.\n");
return 1;
#else
gdImagePtr im, im2;
int blue;
int blueAlpha;
int white;
int brect[8];
int x, y, sx, sy;
char *err;
FILE *out;
#ifdef JISX0208
char *s = "Hello. こんにちは Qyjpqg,"; /* String to draw. */
#else
char *s = "Hello. Qyjpqg,"; /* String to draw. */
#endif
double sz = 40.;
#if 0
double angle = 0.;
#else
double angle = DEG2RAD (-90);
#endif
char *f;
if (argc == 2) {
f = argv[1];
} else {
/* 2.02: usage message. Defaulting to Times wasn't working well for the
many people with no /usr/share/fonts/truetype. */
fprintf(stderr, "Usage: gdtestft fontfilename\n");
fprintf(stderr, "If fontfilename is not a full or relative path, GDFONTPATH is searched for\n"
"it. If GDFONTPATH is not set, /usr/share/fonts/truetype is searched.\n");
exit(1);
}
/* obtain brect so that we can size the image */
err = gdImageStringFT ((gdImagePtr) NULL, &brect[0], 0, f, sz, angle, 0, 0, s);
if (err)
{
fprintf (stderr, err);
return 1;
}
/* create an image just big enough for the string (x3) */
sx = MAXX (brect) - MINX (brect) + 6;
sy = MAXY (brect) - MINY (brect) + 6;
#if 0
/* Would be palette color 8-bit (which of course is still allowed,
but not impressive when used with a JPEG background and antialiasing
and alpha channel and so on!) */
im = gdImageCreate (sx * 3, sy);
#else
/* gd 2.0: true color images can use freetype too,
and they can do antialiasing against arbitrary
complex backgrounds. */
im = gdImageCreateTrueColor (sx * 3, sy);
#endif
/* Background color. gd 2.0: fill the image with it; truecolor
images have a black background otherwise. */
white = gdImageColorResolve (im, 255, 255, 255);
/* Load a pretty background and resample it to cover the entire image */
{
FILE *in = fopen("eleanor.jpg", "rb");
gdImagePtr imb;
if (in) {
imb = gdImageCreateFromJpeg(in);
if (!imb) {
fprintf(stderr, "gdImageCreateFromJpeg failed\n");
exit(1);
}
/* Resample background image to cover new image exactly */
gdImageCopyResampled(im, imb, 0, 0, 0, 0, sx * 3, sy,
gdImageSX(imb), gdImageSY(imb));
} else {
/* Can't get background, so paint a simple one */
/* Truecolor images start out black, so paint it white */
gdImageFilledRectangle (im, 0, 0, sx * 3, sy, white);
}
}
/* TBB 2.0.2: only black was working, and I didn't know it because
the test program used black. Funny, huh? Let's do a more interesting
color this time. */
blue = gdImageColorResolve (im, 128, 192, 255);
/* Almost-transparent blue (alpha blending), with antialiasing */
blueAlpha = gdImageColorResolveAlpha(im, 128, 192, 255, gdAlphaMax / 2);
/* render the string, offset origin to center string */
x = 0 - MINX (brect) + 3;
y = 0 - MINY (brect) + 3;
/* With antialiasing (positive color value) */
err = gdImageStringFT (im, NULL, blue, f, sz, angle, x, y, s);
if (err)
{
fprintf (stderr, err);
return 1;
}
/* Without antialiasing (negative color value) */
err = gdImageStringFT (im, NULL, -blue, f, sz, angle, sx + x, y, s);
if (err)
{
fprintf (stderr, err);
return 1;
}
/* With antialiasing, and 50% alpha blending */
err = gdImageStringFT (im, NULL, blueAlpha, f, sz, angle, sx * 2 + x, y, s);
if (err)
{
fprintf (stderr, err);
return 1;
}
/* TBB: Write img to test/fttest.jpg */
out = fopen ("test/fttest.jpg", "wb");
if (!out)
{
fprintf (stderr, "Can't create test/fttest.jpg\n");
exit (1);
}
/* Fairly high JPEG quality setting */
gdImageJpeg (im, out, 90);
fclose (out);
fprintf (stderr, "Test image written to test/fttest.jpg\n");
/* Destroy it */
gdImageDestroy (im);
return 0;
#endif /* HAVE_LIBFREETYPE */
}
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