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/*
* Copyright © 2006 Keith Packard
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is Keith Packard
*
* Contributor(s):
* Keith Packard <keithp@keithp.com>
*/
#include "cairoint.h"
#include "cairo-analysis-surface-private.h"
#include "cairo-paginated-surface-private.h"
typedef struct {
cairo_surface_t base;
int width;
int height;
cairo_surface_t *target;
cairo_bool_t fallback;
} cairo_analysis_surface_t;
static cairo_int_status_t
_cairo_analysis_surface_get_extents (void *abstract_surface,
cairo_rectangle_fixed_t *rectangle)
{
cairo_analysis_surface_t *surface = abstract_surface;
return _cairo_surface_get_extents (surface->target, rectangle);
}
static cairo_int_status_t
_cairo_analysis_surface_paint (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source)
{
cairo_analysis_surface_t *surface = abstract_surface;
cairo_status_t status;
if (!surface->target->backend->paint)
status = CAIRO_INT_STATUS_UNSUPPORTED;
else
status = (*surface->target->backend->paint) (surface->target, op,
source);
if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
surface->fallback = TRUE;
status = CAIRO_STATUS_SUCCESS;
}
return status;
}
static cairo_int_status_t
_cairo_analysis_surface_mask (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source,
cairo_pattern_t *mask)
{
cairo_analysis_surface_t *surface = abstract_surface;
cairo_status_t status;
if (!surface->target->backend->mask)
status = CAIRO_INT_STATUS_UNSUPPORTED;
else
status = (*surface->target->backend->mask) (surface->target, op,
source, mask);
if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
surface->fallback = TRUE;
status = CAIRO_STATUS_SUCCESS;
}
return status;
}
static cairo_int_status_t
_cairo_analysis_surface_stroke (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source,
cairo_path_fixed_t *path,
cairo_stroke_style_t *style,
cairo_matrix_t *ctm,
cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_antialias_t antialias)
{
cairo_analysis_surface_t *surface = abstract_surface;
cairo_status_t status;
if (!surface->target->backend->stroke)
status = CAIRO_INT_STATUS_UNSUPPORTED;
else
status = (*surface->target->backend->stroke) (surface->target, op,
source, path, style,
ctm, ctm_inverse,
tolerance, antialias);
if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
surface->fallback = TRUE;
status = CAIRO_STATUS_SUCCESS;
}
return status;
}
static cairo_int_status_t
_cairo_analysis_surface_fill (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source,
cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias)
{
cairo_analysis_surface_t *surface = abstract_surface;
cairo_status_t status;
if (!surface->target->backend->fill)
status = CAIRO_INT_STATUS_UNSUPPORTED;
else
status = (*surface->target->backend->fill) (surface->target, op,
source, path, fill_rule,
tolerance, antialias);
if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
surface->fallback = TRUE;
status = CAIRO_STATUS_SUCCESS;
}
return status;
}
static cairo_int_status_t
_cairo_analysis_surface_show_glyphs (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source,
const cairo_glyph_t *glyphs,
int num_glyphs,
cairo_scaled_font_t *scaled_font)
{
cairo_analysis_surface_t *surface = abstract_surface;
cairo_status_t status;
if (!surface->target->backend->show_glyphs)
status = CAIRO_INT_STATUS_UNSUPPORTED;
else
status = (*surface->target->backend->show_glyphs) (surface->target, op,
source,
glyphs, num_glyphs,
scaled_font);
if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
surface->fallback = TRUE;
status = CAIRO_STATUS_SUCCESS;
}
return status;
}
static const cairo_surface_backend_t cairo_analysis_surface_backend = {
CAIRO_INTERNAL_SURFACE_TYPE_ANALYSIS,
NULL, /* create_similar */
NULL, /* finish_surface */
NULL, /* acquire_source_image */
NULL, /* release_source_image */
NULL, /* acquire_dest_image */
NULL, /* release_dest_image */
NULL, /* clone_similar */
NULL, /* composite */
NULL, /* fill_rectangles */
NULL, /* composite_trapezoids */
NULL, /* copy_page */
NULL, /* show_page */
NULL, /* set_clip_region */
NULL, /* clip_path */
_cairo_analysis_surface_get_extents,
NULL, /* old_show_glyphs */
NULL, /* get_font_options */
NULL, /* flush */
NULL, /* mark_dirty_rectangle */
NULL, /* scaled_font_fini */
NULL, /* scaled_glyph_fini */
_cairo_analysis_surface_paint,
_cairo_analysis_surface_mask,
_cairo_analysis_surface_stroke,
_cairo_analysis_surface_fill,
_cairo_analysis_surface_show_glyphs,
NULL, /* snapshot */
};
cairo_private cairo_surface_t *
_cairo_analysis_surface_create (cairo_surface_t *target,
int width,
int height)
{
cairo_analysis_surface_t *surface;
surface = malloc (sizeof (cairo_analysis_surface_t));
if (surface == NULL)
goto FAIL;
/* I believe the content type here is truly arbitrary. I'm quite
* sure nothing will ever use this value. */
_cairo_surface_init (&surface->base, &cairo_analysis_surface_backend,
CAIRO_CONTENT_COLOR_ALPHA);
surface->width = width;
surface->height = height;
surface->target = target;
surface->fallback = FALSE;
return &surface->base;
FAIL:
_cairo_error (CAIRO_STATUS_NO_MEMORY);
return NULL;
}
cairo_private pixman_region16_t *
_cairo_analysis_surface_get_supported (cairo_surface_t *abstract_surface)
{
/* XXX */
return NULL;
}
cairo_private pixman_region16_t *
_cairo_analysis_surface_get_unsupported (cairo_surface_t *abstract_surface)
{
/* XXX */
return NULL;
}
cairo_private cairo_bool_t
_cairo_analysis_surface_has_unsupported (cairo_surface_t *abstract_surface)
{
cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface;
return surface->fallback;
}
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