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surface: Opencode create_similar

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We copy the _cairo_surface_create_similar_solid code into
cairo_surface_create_similar so that we can separate these later
as one wants to use backend sizes and one not.
This commit is contained in:
Alexander Larsson 2013-08-27 14:33:14 +02:00 • committed by Chris Wilson
parent 5f70148467
commit bdccf4fe51
1 changed files with 30 additions and 3 deletions
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33
src/cairo-surface.c
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@ -518,6 +518,8 @@ cairo_surface_create_similar (cairo_surface_t *other,
int height)
{
cairo_surface_t *surface;
cairo_status_t status;
cairo_solid_pattern_t pattern;
if (unlikely (other->status))
return _cairo_surface_create_in_error (other->status);
@ -529,9 +531,34 @@ cairo_surface_create_similar (cairo_surface_t *other,
if (unlikely (! CAIRO_CONTENT_VALID (content)))
return _cairo_surface_create_in_error (CAIRO_STATUS_INVALID_CONTENT);
surface = _cairo_surface_create_similar_solid (other,
content, width, height,
CAIRO_COLOR_TRANSPARENT);
if (unlikely (other->status))
return _cairo_surface_create_in_error (other->status);
surface = NULL;
if (other->backend->create_similar)
surface = other->backend->create_similar (other, content, width, height);
if (surface == NULL)
surface = cairo_surface_create_similar_image (other,
_cairo_format_from_content (content),
width, height);
if (unlikely (surface->status))
return surface;
_cairo_surface_copy_similar_properties (surface, other);
if (unlikely (surface->status))
return surface;
_cairo_pattern_init_solid (&pattern, CAIRO_COLOR_TRANSPARENT);
status = _cairo_surface_paint (surface,
CAIRO_OPERATOR_CLEAR,
&pattern.base, NULL);
if (unlikely (status)) {
cairo_surface_destroy (surface);
surface = _cairo_surface_create_in_error (status);
}
assert (surface->is_clear);
return surface;