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Check (and assert) return values of cairo_matrix_invert

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Now that we have matrix validation at the time of _cairo_scaled_font_init
we know that it is safe to invert this matrix.
This commit is contained in:
Carl Worth 2007-04-10 17:16:39 -07:00
parent 4ce2b62bce
commit dca69f73e3
2 changed files with 8 additions and 2 deletions
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5
src/cairo-pdf-surface.c
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@ -2285,6 +2285,7 @@ static cairo_status_t
_cairo_pdf_surface_emit_type3_font_subset (cairo_pdf_surface_t *surface,
cairo_scaled_font_subset_t *font_subset)
{
cairo_status_t status;
cairo_pdf_resource_t *glyphs, encoding, char_procs, subset_resource, to_unicode_stream;
cairo_pdf_font_t font;
cairo_matrix_t matrix;
@ -2361,7 +2362,9 @@ _cairo_pdf_surface_emit_type3_font_subset (cairo_pdf_surface_t *surface,
subset_resource = _cairo_pdf_surface_new_object (surface);
matrix = font_subset->scaled_font->scale;
cairo_matrix_invert (&matrix);
status = cairo_matrix_invert (&matrix);
/* _cairo_scaled_font_init ensures the matrix is invertible */
assert (status == CAIRO_STATUS_SUCCESS);
_cairo_output_stream_printf (surface->output,
"%d 0 obj\r\n"
"<< /Type /Font\r\n"

5
src/cairo-ps-surface.c
View file

@ -668,6 +668,7 @@ _cairo_ps_surface_emit_type3_font_subset (cairo_ps_surface_t *surface,
{
cairo_status_t status;
cairo_matrix_t matrix;
unsigned int i;
@ -680,7 +681,9 @@ _cairo_ps_surface_emit_type3_font_subset (cairo_ps_surface_t *surface,
font_subset->subset_id);
matrix = font_subset->scaled_font->scale;
cairo_matrix_invert (&matrix);
status = cairo_matrix_invert (&matrix);
/* _cairo_scaled_font_init ensures the matrix is invertible */
assert (status == CAIRO_STATUS_SUCCESS);
_cairo_output_stream_printf (surface->final_stream,
"\t/FontType\t3\n"
"\t/FontMatrix\t[%f %f %f %f 0 0]\n"