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[colr] Fix PNG placement

This commit is contained in:
Behdad Esfahbod 2022-12-17 13:56:22 -07:00
parent f07ce68f9c
commit e3153654cb
1 changed files with 10 additions and 7 deletions
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17
util/hb-test.c
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@ -333,21 +333,24 @@ paint_image (hb_paint_funcs_t *funcs,
read_blob_data_t r;
cairo_surface_t *surface;
cairo_pattern_t *pattern;
cairo_matrix_t m;
if (format != HB_PAINT_IMAGE_FORMAT_PNG)
if (format != HB_PAINT_IMAGE_FORMAT_PNG || !extents)
return;
r.blob = blob;
r.offset = 0;
surface = cairo_image_surface_create_from_png_stream (read_blob, &r);
int width = cairo_image_surface_get_width (surface);
int height = cairo_image_surface_get_width (surface);
pattern = cairo_pattern_create_for_surface (surface);
cairo_matrix_init_scale (&m, 1, -1);
cairo_matrix_translate (&m,
extents ? extents->x_bearing : 0,
extents ? - extents->y_bearing : 0);
cairo_pattern_set_matrix (pattern, &m);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_PAD);
cairo_matrix_t matrix = {(double) width, 0, 0, (double) height, 0, 0};
cairo_pattern_set_matrix (pattern, &matrix);
cairo_translate (data->cr, extents->x_bearing, extents->y_bearing);
cairo_scale (data->cr, extents->width, extents->height);
cairo_set_source (data->cr, pattern);
cairo_paint (data->cr);