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#include <fitz.h>
static int cmpy(const void *a, const void *b)
{
const fz_point *ap = a;
const fz_point *bp = b;
return bp->y - ap->y;
}
static void
drawtile(fz_pixmap *out, fz_pixmap *tile, fz_matrix ctm)
{
static const fz_point rect[4] = { {0, 0}, {0, 1}, {1, 1}, {1, 0} };
fz_point v[4];
int i;
for (i = 0; i < 4; i++)
v[i] = fz_transformpoint(ctm, rect[i]);
qsort(v, 4, sizeof(fz_point), cmpy);
for (i = 0; i < 4; i++)
printf("%d: %g %g\n", i, v[i].x, v[i].y);
}
fz_error *
fz_renderimage(fz_renderer *gc, fz_imagenode *node, fz_matrix ctm)
{
fz_error *error;
fz_pixmap *tile;
fz_image *image = node->image;
fz_colorspace *cs = image->cs;
int w = image->w;
int h = image->h;
int n = image->n;
error = fz_newpixmap(&tile, cs, 0, 0, w, h, n, 1);
if (error)
return error;
error = fz_newpixmap(&gc->tmp, cs, gc->x, gc->y, gc->w, gc->h, n, 1);
if (error)
goto cleanup;
error = image->loadtile(image, tile);
if (error)
goto cleanup;
drawtile(gc->tmp, tile, ctm);
fz_freepixmap(tile);
return nil;
cleanup:
fz_freepixmap(tile);
return error;
}
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