static cairo_int_status_t
_cairo_paginated_surface_show_glyphs (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source,
cairo_glyph_t *glyphs,
int num_glyphs,
cairo_scaled_font_t *scaled_font)
{
cairo_paginated_surface_t *surface = abstract_surface;
cairo_int_status_t status;
/* Optimize away erasing of nothing. */
if (surface->page_is_blank && op == CAIRO_OPERATOR_CLEAR)
return CAIRO_STATUS_SUCCESS;
surface->page_is_blank = FALSE;
/* Since this is a "wrapping" surface, we're calling back into
* _cairo_surface_show_glyphs from within a call to the same.
* Since _cairo_surface_show_glyphs acquires a mutex, we release
* and re-acquire the mutex around this nested call.
*
* Yes, this is ugly, but we consider it pragmatic as compared to
* adding locking code to all 18 surface-backend-specific
* show_glyphs functions, (which would get less testing and likely
* lead to bugs).
*/
CAIRO_MUTEX_UNLOCK (scaled_font->mutex);
status = _cairo_surface_show_glyphs (surface->meta, op, source,
glyphs, num_glyphs,
scaled_font);
CAIRO_MUTEX_LOCK (scaled_font->mutex);
return status;
}
cairo_status_t
_cairo_scaled_font_show_glyphs (cairo_scaled_font_t *scaled_font,
cairo_operator_t operator,
cairo_pattern_t *pattern,
cairo_surface_t *surface,
int source_x,
int source_y,
int dest_x,
int dest_y,
unsigned int width,
unsigned int height,
cairo_glyph_t *glyphs,
int num_glyphs)
{
cairo_status_t status;
/* These operators aren't interpreted the same way by the backends;
* they are implemented in terms of other operators in cairo-gstate.c
*/
assert (operator != CAIRO_OPERATOR_SOURCE && operator != CAIRO_OPERATOR_CLEAR);
if (scaled_font->status)
return scaled_font->status;
status = _cairo_surface_show_glyphs (scaled_font, operator, pattern,
surface,
source_x, source_y,
dest_x, dest_y,
width, height,
glyphs, num_glyphs);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
return status;
/* Surface display routine either does not exist or failed. */
return scaled_font->backend->show_glyphs (scaled_font, operator, pattern,
surface,
source_x, source_y,
dest_x, dest_y,
width, height,
glyphs, num_glyphs);
}
cairo_int_status_t
_cairo_meta_surface_replay (cairo_surface_t *surface,
cairo_surface_t *target)
{
cairo_meta_surface_t *meta;
cairo_command_t *command, **elements;
int i, num_elements;
cairo_int_status_t status;
cairo_traps_t traps;
cairo_clip_t clip;
meta = (cairo_meta_surface_t *) surface;
status = CAIRO_STATUS_SUCCESS;
_cairo_clip_init (&clip, target);
num_elements = meta->commands.num_elements;
elements = (cairo_command_t **) meta->commands.elements;
for (i = 0; i < num_elements; i++) {
command = elements[i];
switch (command->type) {
case CAIRO_COMMAND_COMPOSITE:
status = _cairo_surface_set_clip (target, &clip);
if (status)
break;
status = _cairo_surface_composite
(command->composite.operator,
&command->composite.src_pattern.base,
command->composite.mask_pattern_pointer,
target,
command->composite.src_x,
command->composite.src_y,
command->composite.mask_x,
command->composite.mask_y,
command->composite.dst_x,
command->composite.dst_y,
command->composite.width,
command->composite.height);
break;
case CAIRO_COMMAND_FILL_RECTANGLES:
status = _cairo_surface_set_clip (target, &clip);
if (status)
break;
status = _cairo_surface_fill_rectangles
(target,
command->fill_rectangles.operator,
&command->fill_rectangles.color,
command->fill_rectangles.rects,
command->fill_rectangles.num_rects);
break;
case CAIRO_COMMAND_COMPOSITE_TRAPEZOIDS:
status = _cairo_surface_set_clip (target, &clip);
if (status)
break;
status = _cairo_surface_composite_trapezoids
(command->composite_trapezoids.operator,
&command->composite_trapezoids.pattern.base,
target,
command->composite_trapezoids.antialias,
command->composite_trapezoids.x_src,
command->composite_trapezoids.y_src,
command->composite_trapezoids.x_dst,
command->composite_trapezoids.y_dst,
command->composite_trapezoids.width,
command->composite_trapezoids.height,
command->composite_trapezoids.traps,
command->composite_trapezoids.num_traps);
break;
case CAIRO_COMMAND_INTERSECT_CLIP_PATH:
/* XXX Meta surface clipping is broken and requires some
* cairo-gstate.c rewriting. Work around it for now. */
if (command->intersect_clip_path.path_pointer == NULL)
status = _cairo_clip_reset (&clip);
else
status = _cairo_clip_clip (&clip,
command->intersect_clip_path.path_pointer,
command->intersect_clip_path.fill_rule,
command->intersect_clip_path.tolerance,
command->intersect_clip_path.antialias,
target);
break;
case CAIRO_COMMAND_SHOW_GLYPHS:
status = _cairo_surface_set_clip (target, &clip);
if (status)
break;
status = _cairo_surface_show_glyphs
(command->show_glyphs.scaled_font,
command->show_glyphs.operator,
&command->show_glyphs.pattern.base,
target,
command->show_glyphs.source_x,
command->show_glyphs.source_y,
command->show_glyphs.dest_x,
command->show_glyphs.dest_y,
command->show_glyphs.width,
command->show_glyphs.height,
command->show_glyphs.glyphs,
command->show_glyphs.num_glyphs);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
break;
status = (*command->show_glyphs.scaled_font->backend->
show_glyphs) (command->show_glyphs.scaled_font,
command->show_glyphs.operator,
&command->show_glyphs.pattern.base,
target,
command->show_glyphs.source_x,
command->show_glyphs.source_y,
command->show_glyphs.dest_x,
command->show_glyphs.dest_y,
command->show_glyphs.width,
command->show_glyphs.height,
command->show_glyphs.glyphs,
command->show_glyphs.num_glyphs);
break;
case CAIRO_COMMAND_FILL_PATH:
status = _cairo_surface_set_clip (target, &clip);
if (status)
break;
status = _cairo_surface_fill_path (command->fill_path.operator,
&command->fill_path.pattern.base,
target,
&command->fill_path.path,
command->fill_path.fill_rule,
command->fill_path.tolerance);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
break;
_cairo_traps_init (&traps);
status = _cairo_path_fixed_fill_to_traps (&command->fill_path.path,
command->fill_path.fill_rule,
command->fill_path.tolerance,
&traps);
if (status) {
_cairo_traps_fini (&traps);
break;
}
status = _cairo_surface_clip_and_composite_trapezoids (&command->fill_path.pattern.base,
command->fill_path.operator,
target,
&traps,
&clip,
command->fill_path.antialias);
_cairo_traps_fini (&traps);
break;
default:
ASSERT_NOT_REACHED;
}
if (status)
break;
}
_cairo_clip_fini (&clip);
return status;
}
