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pdf (debug API): Export the ability to force fallbacks

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We need to occasionally force fallbacks whilst testing the PDF
output, so export a debug interface to do so in order to avoid poking
around inside cairo internals.

References: https://bugs.freedesktop.org/show_bug.cgi?id=48577
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-04-12 10:51:38 +01:00
parent a3f97d1d2e
commit 25abe58298
3 changed files with 32 additions and 13 deletions
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19
boilerplate/cairo-boilerplate-pdf.c
View file

@ -29,8 +29,6 @@
#if CAIRO_CAN_TEST_PDF_SURFACE
#include <cairo-pdf.h>
#include <cairo-pdf-surface-private.h>
#include <cairo-paginated-surface-private.h>
#if HAVE_SIGNAL_H
#include <signal.h>
@ -221,23 +219,18 @@ _cairo_boilerplate_pdf_cleanup (void *closure)
}
static void
_cairo_boilerplate_pdf_force_fallbacks (cairo_surface_t *abstract_surface,
_cairo_boilerplate_pdf_force_fallbacks (cairo_surface_t *surface,
double x_pixels_per_inch,
double y_pixels_per_inch)
{
pdf_target_closure_t *ptc = cairo_surface_get_user_data (abstract_surface,
&pdf_closure_key);
cairo_paginated_surface_t *paginated;
cairo_pdf_surface_t *surface;
pdf_target_closure_t *ptc =
cairo_surface_get_user_data (surface, &pdf_closure_key);
if (ptc->target)
abstract_surface = ptc->target;
surface = ptc->target;
paginated = (cairo_paginated_surface_t*) abstract_surface;
surface = (cairo_pdf_surface_t*) paginated->target;
surface->force_fallbacks = TRUE;
cairo_surface_set_fallback_resolution (&paginated->base,
cairo_pdf_surface_debug_force_fallbacks (surface);
cairo_surface_set_fallback_resolution (surface,
x_pixels_per_inch,
y_pixels_per_inch);
}

21
src/cairo-pdf-surface.c
View file

@ -683,6 +683,27 @@ cairo_pdf_surface_set_size (cairo_surface_t *surface,
status = _cairo_surface_set_error (surface, status);
}
/**
* cairo_pdf_surface_debug_force_fallbacks:
* @surface: a PDF #cairo_surface_t
*
* This is purely a debugging interface, intended only to be used in
* conformation testing, to force the surface to contain only rasterised
* graphics and no native PDF drawing.
*
* Since: 1.12.2
**/
void
cairo_pdf_surface_debug_force_fallbacks (cairo_surface_t *abstract_surface)
{
cairo_pdf_surface_t *surface = NULL;
if (! _extract_pdf_surface (abstract_surface, &surface))
return;
surface->force_fallbacks = TRUE;
}
static void
_cairo_pdf_surface_clear (cairo_pdf_surface_t *surface)
{

5
src/cairo-pdf.h
View file

@ -85,6 +85,11 @@ cairo_pdf_surface_set_size (cairo_surface_t *surface,
double width_in_points,
double height_in_points);
/* debug interface */
cairo_public void
cairo_pdf_surface_debug_force_fallbacks (cairo_surface_t *abstract_surface);
CAIRO_END_DECLS
#else /* CAIRO_HAS_PDF_SURFACE */