forked from KolibriOS/kolibrios
287 lines
8.8 KiB
C
287 lines
8.8 KiB
C
/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2005 Red Hat, Inc
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is Red Hat, Inc.
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*
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* Contributor(s):
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* Carl Worth <cworth@cworth.org>
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*/
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/* This isn't a "real" surface, but just something to be used by the
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* test suite to help exercise the paginated-surface paths in cairo.
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*
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* The defining feature of this backend is that it uses a paginated
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* surface to record all operations, and then replays everything to an
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* image surface.
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*
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* It's possible that this code might serve as a good starting point
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* for someone working on bringing up a new paginated-surface-based
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* backend.
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*/
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#include "cairoint.h"
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#include "test-paginated-surface.h"
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#include "cairo-default-context-private.h"
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#include "cairo-error-private.h"
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#include "cairo-paginated-private.h"
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#include "cairo-surface-backend-private.h"
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typedef struct _test_paginated_surface {
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cairo_surface_t base;
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cairo_surface_t *target;
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cairo_paginated_mode_t paginated_mode;
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} test_paginated_surface_t;
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static const cairo_surface_backend_t test_paginated_surface_backend;
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static const cairo_paginated_surface_backend_t test_paginated_surface_paginated_backend;
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cairo_surface_t *
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_cairo_test_paginated_surface_create (cairo_surface_t *target)
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{
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cairo_status_t status;
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cairo_surface_t *paginated;
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test_paginated_surface_t *surface;
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status = cairo_surface_status (target);
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if (unlikely (status))
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return _cairo_surface_create_in_error (status);
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surface = malloc (sizeof (test_paginated_surface_t));
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if (unlikely (surface == NULL))
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return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
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_cairo_surface_init (&surface->base,
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&test_paginated_surface_backend,
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NULL, /* device */
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target->content);
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surface->target = cairo_surface_reference (target);
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paginated = _cairo_paginated_surface_create (&surface->base,
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target->content,
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&test_paginated_surface_paginated_backend);
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status = paginated->status;
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if (status == CAIRO_STATUS_SUCCESS) {
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/* paginated keeps the only reference to surface now, drop ours */
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cairo_surface_destroy (&surface->base);
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return paginated;
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}
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cairo_surface_destroy (target);
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free (surface);
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return _cairo_surface_create_in_error (status);
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}
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static cairo_status_t
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_test_paginated_surface_finish (void *abstract_surface)
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{
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test_paginated_surface_t *surface = abstract_surface;
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cairo_surface_destroy (surface->target);
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_bool_t
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_test_paginated_surface_get_extents (void *abstract_surface,
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cairo_rectangle_int_t *rectangle)
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{
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test_paginated_surface_t *surface = abstract_surface;
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return _cairo_surface_get_extents (surface->target, rectangle);
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}
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static cairo_int_status_t
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_test_paginated_surface_paint (void *abstract_surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_clip_t *clip)
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{
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test_paginated_surface_t *surface = abstract_surface;
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if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE)
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return CAIRO_STATUS_SUCCESS;
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return _cairo_surface_paint (surface->target, op, source, clip);
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}
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static cairo_int_status_t
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_test_paginated_surface_mask (void *abstract_surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_pattern_t *mask,
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const cairo_clip_t *clip)
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{
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test_paginated_surface_t *surface = abstract_surface;
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if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE)
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return CAIRO_STATUS_SUCCESS;
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return _cairo_surface_mask (surface->target,
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op, source, mask, clip);
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}
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static cairo_int_status_t
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_test_paginated_surface_stroke (void *abstract_surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_path_fixed_t *path,
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const cairo_stroke_style_t *style,
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const cairo_matrix_t *ctm,
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const cairo_matrix_t *ctm_inverse,
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double tolerance,
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cairo_antialias_t antialias,
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const cairo_clip_t *clip)
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{
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test_paginated_surface_t *surface = abstract_surface;
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if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE)
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return CAIRO_STATUS_SUCCESS;
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return _cairo_surface_stroke (surface->target, op, source,
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path, style,
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ctm, ctm_inverse,
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tolerance, antialias,
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clip);
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}
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static cairo_int_status_t
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_test_paginated_surface_fill (void *abstract_surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_path_fixed_t *path,
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cairo_fill_rule_t fill_rule,
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double tolerance,
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cairo_antialias_t antialias,
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const cairo_clip_t *clip)
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{
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test_paginated_surface_t *surface = abstract_surface;
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if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE)
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return CAIRO_STATUS_SUCCESS;
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return _cairo_surface_fill (surface->target, op, source,
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path, fill_rule,
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tolerance, antialias,
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clip);
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}
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static cairo_bool_t
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_test_paginated_surface_has_show_text_glyphs (void *abstract_surface)
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{
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test_paginated_surface_t *surface = abstract_surface;
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return cairo_surface_has_show_text_glyphs (surface->target);
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}
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static cairo_int_status_t
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_test_paginated_surface_show_text_glyphs (void *abstract_surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const char *utf8,
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int utf8_len,
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cairo_glyph_t *glyphs,
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int num_glyphs,
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const cairo_text_cluster_t *clusters,
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int num_clusters,
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cairo_text_cluster_flags_t cluster_flags,
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cairo_scaled_font_t *scaled_font,
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const cairo_clip_t *clip)
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{
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test_paginated_surface_t *surface = abstract_surface;
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if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE)
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return CAIRO_STATUS_SUCCESS;
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return _cairo_surface_show_text_glyphs (surface->target, op, source,
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utf8, utf8_len,
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glyphs, num_glyphs,
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clusters, num_clusters,
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cluster_flags,
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scaled_font,
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clip);
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}
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static void
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_test_paginated_surface_set_paginated_mode (void *abstract_surface,
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cairo_paginated_mode_t mode)
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{
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test_paginated_surface_t *surface = abstract_surface;
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surface->paginated_mode = mode;
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}
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static const cairo_surface_backend_t test_paginated_surface_backend = {
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CAIRO_INTERNAL_SURFACE_TYPE_TEST_PAGINATED,
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_test_paginated_surface_finish,
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_cairo_default_context_create,
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/* Since we are a paginated user, we get to regard most of the
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* surface backend interface as historical cruft and ignore it. */
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NULL, /* create_similar */
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NULL, /* create similar image */
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NULL, /* map to image */
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NULL, /* unmap image */
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_cairo_surface_default_source,
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NULL, /* acquire_source_image */
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NULL, /* release_source_image */
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NULL, /* snapshot */
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NULL, /* copy_page */
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NULL, /* show_page */
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_test_paginated_surface_get_extents,
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NULL, /* get_font_options */
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NULL, /* flush */
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NULL, /* mark_dirty_rectangle */
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/* Here is the more "modern" section of the surface backend
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* interface which is mostly just drawing functions */
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_test_paginated_surface_paint,
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_test_paginated_surface_mask,
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_test_paginated_surface_stroke,
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_test_paginated_surface_fill,
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NULL, /* fill-stroke */
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NULL, /* replaced by show_text_glyphs */
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_test_paginated_surface_has_show_text_glyphs,
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_test_paginated_surface_show_text_glyphs
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};
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static const cairo_paginated_surface_backend_t test_paginated_surface_paginated_backend = {
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NULL, /* start_page */
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_test_paginated_surface_set_paginated_mode
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};
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