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#include <fitz.h>
void
fz_convertpixmap(fz_colorspace *srcs, fz_pixmap *src, fz_colorspace *dsts, fz_pixmap *dst)
{
srcs->convpixmap(srcs, src, dsts, dst);
}
void
fz_convertcolor(fz_colorspace *srcs, float *srcv, fz_colorspace *dsts, float *dstv)
{
srcs->convcolor(srcs, srcv, dsts, dstv);
}
fz_colorspace *
fz_keepcolorspace(fz_colorspace *cs)
{
if (cs->refs < 0)
return cs;
cs->refs ++;
return cs;
}
void
fz_dropcolorspace(fz_colorspace *cs)
{
if (cs->refs < 0)
return;
if (--cs->refs == 0)
{
if (cs->drop)
cs->drop(cs);
fz_free(cs);
}
}
void
fz_stdconvcolor(fz_colorspace *srcs, float *srcv, fz_colorspace *dsts, float *dstv)
{
float xyz[3];
int i;
if (srcs != dsts)
{
srcs->toxyz(srcs, srcv, xyz);
dsts->fromxyz(dsts, xyz, dstv);
for (i = 0; i < dsts->n; i++)
dstv[i] = CLAMP(dstv[i], 0.0, 1.0);
}
else
{
for (i = 0; i < srcs->n; i++)
dstv[i] = srcv[i];
}
}
void
fz_stdconvpixmap(fz_colorspace *srcs, fz_pixmap *src, fz_colorspace *dsts, fz_pixmap *dst)
{
float srcv[FZ_MAXCOLORS];
float dstv[FZ_MAXCOLORS];
int y, x, k;
unsigned char *s = src->samples;
unsigned char *d = dst->samples;
printf("convert pixmap from %s to %s\n", srcs->name, dsts->name);
assert(src->w == dst->w && src->h == dst->h);
assert(src->n == srcs->n + 1);
assert(dst->n == dsts->n + 1);
for (y = 0; y < src->h; y++)
{
for (x = 0; x < src->w; x++)
{
*d++ = *s++;
for (k = 0; k < src->n - 1; k++)
srcv[k] = *s++ / 255.0;
fz_convertcolor(srcs, srcv, dsts, dstv);
for (k = 0; k < dst->n - 1; k++)
*d++ = dstv[k] * 255;
}
}
}
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