249 lines
7.4 KiB
C
249 lines
7.4 KiB
C
/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
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/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2002 University of Southern California
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* Copyright © 2005 Red Hat, Inc.
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* Copyright © 2011 Intel Corporation
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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 University of Southern
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* California.
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*
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* Contributor(s):
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* Carl D. Worth <cworth@cworth.org>
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* Behdad Esfahbod <behdad@behdad.org>
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* Chris Wilson <chris@chris-wilson.co.uk>
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* Karl Tomlinson <karlt+@karlt.net>, Mozilla Corporation
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*/
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#include "cairoint.h"
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#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS
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#include "cairo-xlib-private.h"
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#include "cairo-compositor-private.h"
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#include "cairo-image-surface-private.h"
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#include "cairo-surface-offset-private.h"
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static const cairo_compositor_t *
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_get_compositor (cairo_surface_t *surface)
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{
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return ((cairo_image_surface_t *)surface)->compositor;
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}
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static cairo_bool_t
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unclipped (cairo_xlib_surface_t *xlib, cairo_clip_t *clip)
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{
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cairo_rectangle_int_t r;
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r.x = r.y = 0;
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r.width = xlib->width;
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r.height = xlib->height;
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return _cairo_clip_contains_rectangle (clip, &r);
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}
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static cairo_int_status_t
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_cairo_xlib_shm_compositor_paint (const cairo_compositor_t *_compositor,
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cairo_composite_rectangles_t *extents)
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{
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cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface;
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cairo_int_status_t status;
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cairo_surface_t *shm;
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cairo_bool_t overwrite;
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TRACE ((stderr, "%s\n", __FUNCTION__));
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overwrite =
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extents->op <= CAIRO_OPERATOR_SOURCE && unclipped (xlib, extents->clip);
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shm = _cairo_xlib_surface_get_shm (xlib, overwrite);
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if (shm == NULL)
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return CAIRO_INT_STATUS_UNSUPPORTED;
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status = _cairo_compositor_paint (_get_compositor (shm), shm,
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extents->op,
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&extents->source_pattern.base,
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extents->clip);
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if (unlikely (status))
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return status;
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xlib->base.is_clear =
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extents->op == CAIRO_OPERATOR_CLEAR && unclipped (xlib, extents->clip);
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xlib->base.serial++;
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xlib->fallback++;
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return CAIRO_INT_STATUS_NOTHING_TO_DO;
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}
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static cairo_int_status_t
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_cairo_xlib_shm_compositor_mask (const cairo_compositor_t *_compositor,
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cairo_composite_rectangles_t *extents)
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{
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cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface;
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cairo_int_status_t status;
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cairo_surface_t *shm;
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TRACE ((stderr, "%s\n", __FUNCTION__));
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shm = _cairo_xlib_surface_get_shm (xlib, FALSE);
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if (shm == NULL)
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return CAIRO_INT_STATUS_UNSUPPORTED;
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status = _cairo_compositor_mask (_get_compositor (shm), shm,
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extents->op,
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&extents->source_pattern.base,
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&extents->mask_pattern.base,
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extents->clip);
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if (unlikely (status))
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return status;
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xlib->base.is_clear = FALSE;
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xlib->base.serial++;
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xlib->fallback++;
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return CAIRO_INT_STATUS_NOTHING_TO_DO;
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}
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static cairo_int_status_t
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_cairo_xlib_shm_compositor_stroke (const cairo_compositor_t *_compositor,
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cairo_composite_rectangles_t *extents,
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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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{
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cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface;
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cairo_int_status_t status;
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cairo_surface_t *shm;
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TRACE ((stderr, "%s\n", __FUNCTION__));
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shm = _cairo_xlib_surface_get_shm (xlib, FALSE);
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if (shm == NULL)
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return CAIRO_INT_STATUS_UNSUPPORTED;
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status = _cairo_compositor_stroke (_get_compositor (shm), shm,
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extents->op,
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&extents->source_pattern.base,
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path, style,
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ctm, ctm_inverse,
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tolerance,
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antialias,
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extents->clip);
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if (unlikely (status))
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return status;
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xlib->base.is_clear = FALSE;
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xlib->base.serial++;
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xlib->fallback++;
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return CAIRO_INT_STATUS_NOTHING_TO_DO;
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}
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static cairo_int_status_t
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_cairo_xlib_shm_compositor_fill (const cairo_compositor_t *_compositor,
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cairo_composite_rectangles_t *extents,
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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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{
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cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface;
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cairo_int_status_t status;
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cairo_surface_t *shm;
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TRACE ((stderr, "%s\n", __FUNCTION__));
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shm = _cairo_xlib_surface_get_shm (xlib, FALSE);
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if (shm == NULL)
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return CAIRO_INT_STATUS_UNSUPPORTED;
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status = _cairo_compositor_fill (_get_compositor (shm), shm,
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extents->op,
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&extents->source_pattern.base,
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path,
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fill_rule, tolerance, antialias,
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extents->clip);
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if (unlikely (status))
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return status;
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xlib->base.is_clear = FALSE;
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xlib->base.serial++;
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xlib->fallback++;
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return CAIRO_INT_STATUS_NOTHING_TO_DO;
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}
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static cairo_int_status_t
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_cairo_xlib_shm_compositor_glyphs (const cairo_compositor_t *_compositor,
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cairo_composite_rectangles_t *extents,
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cairo_scaled_font_t *scaled_font,
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cairo_glyph_t *glyphs,
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int num_glyphs,
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cairo_bool_t overlap)
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{
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cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface;
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cairo_int_status_t status;
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cairo_surface_t *shm;
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TRACE ((stderr, "%s\n", __FUNCTION__));
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shm = _cairo_xlib_surface_get_shm (xlib, FALSE);
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if (shm == NULL)
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return CAIRO_INT_STATUS_UNSUPPORTED;
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status = _cairo_compositor_glyphs (_get_compositor (shm), shm,
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extents->op,
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&extents->source_pattern.base,
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glyphs, num_glyphs, scaled_font,
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extents->clip);
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if (unlikely (status))
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return status;
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xlib->base.is_clear = FALSE;
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xlib->base.serial++;
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xlib->fallback++;
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return CAIRO_INT_STATUS_NOTHING_TO_DO;
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}
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static const cairo_compositor_t _cairo_xlib_shm_compositor = {
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&_cairo_fallback_compositor,
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_cairo_xlib_shm_compositor_paint,
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_cairo_xlib_shm_compositor_mask,
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_cairo_xlib_shm_compositor_stroke,
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_cairo_xlib_shm_compositor_fill,
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_cairo_xlib_shm_compositor_glyphs,
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};
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const cairo_compositor_t *
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_cairo_xlib_fallback_compositor_get (void)
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{
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return &_cairo_xlib_shm_compositor;
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}
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#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */
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