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PDF: Avoid using patterns when painting surfaces with EXTEND_NONE

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This is an optimization the PS surface has been using to improve
printing speed and prevent printers from choking on large
images. Applying this optimzation to PDF prevents the same problem
occuring when the PDF is converted to PS.
This commit is contained in:
Adrian Johnson 2009-08-30 23:38:17 +09:30
parent 26d568a9ad
commit 6512faeb94
1 changed files with 58 additions and 0 deletions
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58
src/cairo-pdf-surface.c
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@ -3264,6 +3264,51 @@ _cairo_pdf_surface_emit_pattern (cairo_pdf_surface_t *surface, cairo_pdf_pattern
return status;
}
static cairo_status_t
_cairo_pdf_surface_paint_surface_pattern (cairo_pdf_surface_t *surface,
cairo_surface_pattern_t *source)
{
cairo_pdf_resource_t surface_res;
int width, height;
cairo_matrix_t cairo_p2d, pdf_p2d;
cairo_status_t status;
status = _cairo_pdf_surface_add_source_surface (surface,
source->surface,
source->base.filter,
&surface_res,
&width,
&height);
if (unlikely (status))
return status;
cairo_p2d = source->base.matrix;
status = cairo_matrix_invert (&cairo_p2d);
/* cairo_pattern_set_matrix ensures the matrix is invertible */
assert (status == CAIRO_STATUS_SUCCESS);
pdf_p2d = surface->cairo_to_pdf;
cairo_matrix_multiply (&pdf_p2d, &cairo_p2d, &pdf_p2d);
cairo_matrix_translate (&pdf_p2d, 0.0, height);
cairo_matrix_scale (&pdf_p2d, 1.0, -1.0);
if (! _cairo_surface_is_meta (source->surface))
cairo_matrix_scale (&pdf_p2d, width, height);
if (! _cairo_matrix_is_identity (&pdf_p2d)) {
_cairo_output_stream_printf (surface->output,
"%f %f %f %f %f %f cm\n",
pdf_p2d.xx, pdf_p2d.yx,
pdf_p2d.xy, pdf_p2d.yy,
pdf_p2d.x0, pdf_p2d.y0);
}
_cairo_output_stream_printf (surface->output,
"/x%d Do\n",
surface_res.id);
return _cairo_pdf_surface_add_xobject (surface, surface_res);
}
static cairo_status_t
_cairo_pdf_surface_select_operator (cairo_pdf_surface_t *surface,
cairo_operator_t op)
@ -5274,6 +5319,19 @@ _cairo_pdf_surface_paint (void *abstract_surface,
if (unlikely (status))
return status;
if (source->type == CAIRO_PATTERN_TYPE_SURFACE &&
source->extend == CAIRO_EXTEND_NONE) {
_cairo_output_stream_printf (surface->output, "q\n");
status = _cairo_pdf_surface_paint_surface_pattern (surface,
(cairo_surface_pattern_t *) source);
if (unlikely (status))
return status;
_cairo_output_stream_printf (surface->output, "Q\n");
return _cairo_output_stream_get_status (surface->output);
}
pattern_res.id = 0;
gstate_res.id = 0;
status = _cairo_pdf_surface_add_pdf_pattern (surface, source, clip,