add cairo

1 files changed, 340 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/src/cairo-shape-mask-compositor.c b/libs/cairo-1.16.0/src/cairo-shape-mask-compositor.c
new file mode 100644
index 0000000..3117267
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-shape-mask-compositor.c
@@ -0,0 +1,340 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2012 Intel Corporation
+ *
+ * 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., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, 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 University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-compositor-private.h"
+#include "cairo-clip-private.h"
+#include "cairo-pattern-private.h"
+#include "cairo-surface-private.h"
+#include "cairo-surface-offset-private.h"
+
+static cairo_int_status_t
+_cairo_shape_mask_compositor_stroke (const cairo_compositor_t *_compositor,
+				     cairo_composite_rectangles_t *extents,
+				     const cairo_path_fixed_t	*path,
+				     const cairo_stroke_style_t	*style,
+				     const cairo_matrix_t	*ctm,
+				     const cairo_matrix_t	*ctm_inverse,
+				     double		 tolerance,
+				     cairo_antialias_t	 antialias)
+{
+    cairo_surface_t *mask;
+    cairo_surface_pattern_t pattern;
+    cairo_int_status_t status;
+    cairo_clip_t *clip;
+
+    if (! extents->is_bounded)
+	return CAIRO_INT_STATUS_UNSUPPORTED;
+
+    TRACE ((stderr, "%s\n", __FUNCTION__));
+    mask = _cairo_surface_create_scratch (extents->surface,
+					  CAIRO_CONTENT_ALPHA,
+					  extents->bounded.width,
+					  extents->bounded.height,
+					  NULL);
+    if (unlikely (mask->status))
+	return mask->status;
+
+    clip = extents->clip;
+    if (! _cairo_clip_is_region (clip))
+	clip = _cairo_clip_copy_region (clip);
+
+    if (! mask->is_clear) {
+	status = _cairo_surface_offset_paint (mask,
+					      extents->bounded.x,
+					      extents->bounded.y,
+					      CAIRO_OPERATOR_CLEAR,
+					      &_cairo_pattern_clear.base,
+					      clip);
+	if (unlikely (status))
+	    goto error;
+    }
+
+    status = _cairo_surface_offset_stroke (mask,
+					   extents->bounded.x,
+					   extents->bounded.y,
+					   CAIRO_OPERATOR_ADD,
+					   &_cairo_pattern_white.base,
+					   path, style, ctm, ctm_inverse,
+					   tolerance, antialias,
+					   clip);
+    if (unlikely (status))
+	goto error;
+
+    if (clip != extents->clip) {
+	status = _cairo_clip_combine_with_surface (extents->clip, mask,
+						   extents->bounded.x,
+						   extents->bounded.y);
+	if (unlikely (status))
+	    goto error;
+    }
+
+    _cairo_pattern_init_for_surface (&pattern, mask);
+    cairo_matrix_init_translate (&pattern.base.matrix,
+				 -extents->bounded.x,
+				 -extents->bounded.y);
+    pattern.base.filter = CAIRO_FILTER_NEAREST;
+    pattern.base.extend = CAIRO_EXTEND_NONE;
+    if (extents->op == CAIRO_OPERATOR_SOURCE) {
+	status = _cairo_surface_mask (extents->surface,
+				      CAIRO_OPERATOR_DEST_OUT,
+				      &_cairo_pattern_white.base,
+				      &pattern.base,
+				      clip);
+	if ((status == CAIRO_INT_STATUS_SUCCESS)) {
+	    status = _cairo_surface_mask (extents->surface,
+					  CAIRO_OPERATOR_ADD,
+					  &extents->source_pattern.base,
+					  &pattern.base,
+					  clip);
+	}
+    } else {
+	status = _cairo_surface_mask (extents->surface,
+				      extents->op,
+				      &extents->source_pattern.base,
+				      &pattern.base,
+				      clip);
+    }
+    _cairo_pattern_fini (&pattern.base);
+
+error:
+    cairo_surface_destroy (mask);
+    if (clip != extents->clip)
+	_cairo_clip_destroy (clip);
+    return status;
+}
+
+static cairo_int_status_t
+_cairo_shape_mask_compositor_fill (const cairo_compositor_t *_compositor,
+				   cairo_composite_rectangles_t *extents,
+				   const cairo_path_fixed_t	*path,
+				   cairo_fill_rule_t	 fill_rule,
+				   double			 tolerance,
+				   cairo_antialias_t	 antialias)
+{
+    cairo_surface_t *mask;
+    cairo_surface_pattern_t pattern;
+    cairo_int_status_t status;
+    cairo_clip_t *clip;
+
+    TRACE ((stderr, "%s\n", __FUNCTION__));
+
+    if (! extents->is_bounded)
+	return CAIRO_INT_STATUS_UNSUPPORTED;
+
+    mask = _cairo_surface_create_scratch (extents->surface,
+					  CAIRO_CONTENT_ALPHA,
+					  extents->bounded.width,
+					  extents->bounded.height,
+					  NULL);
+    if (unlikely (mask->status))
+	return mask->status;
+
+    clip = extents->clip;
+    if (! _cairo_clip_is_region (clip))
+	clip = _cairo_clip_copy_region (clip);
+
+    if (! mask->is_clear) {
+	status = _cairo_surface_offset_paint (mask,
+					      extents->bounded.x,
+					      extents->bounded.y,
+					      CAIRO_OPERATOR_CLEAR,
+					      &_cairo_pattern_clear.base,
+					      clip);
+	if (unlikely (status))
+	    goto error;
+    }
+
+    status = _cairo_surface_offset_fill (mask,
+					 extents->bounded.x,
+					 extents->bounded.y,
+					 CAIRO_OPERATOR_ADD,
+					 &_cairo_pattern_white.base,
+					 path, fill_rule, tolerance, antialias,
+					 clip);
+    if (unlikely (status))
+	goto error;
+
+    if (clip != extents->clip) {
+	status = _cairo_clip_combine_with_surface (extents->clip, mask,
+						   extents->bounded.x,
+						   extents->bounded.y);
+	if (unlikely (status))
+	    goto error;
+    }
+
+    _cairo_pattern_init_for_surface (&pattern, mask);
+    cairo_matrix_init_translate (&pattern.base.matrix,
+				 -extents->bounded.x,
+				 -extents->bounded.y);
+    pattern.base.filter = CAIRO_FILTER_NEAREST;
+    pattern.base.extend = CAIRO_EXTEND_NONE;
+    if (extents->op == CAIRO_OPERATOR_SOURCE) {
+	status = _cairo_surface_mask (extents->surface,
+				      CAIRO_OPERATOR_DEST_OUT,
+				      &_cairo_pattern_white.base,
+				      &pattern.base,
+				      clip);
+	if ((status == CAIRO_INT_STATUS_SUCCESS)) {
+	    status = _cairo_surface_mask (extents->surface,
+					  CAIRO_OPERATOR_ADD,
+					  &extents->source_pattern.base,
+					  &pattern.base,
+					  clip);
+	}
+    } else {
+	status = _cairo_surface_mask (extents->surface,
+				      extents->op,
+				      &extents->source_pattern.base,
+				      &pattern.base,
+				      clip);
+    }
+    _cairo_pattern_fini (&pattern.base);
+
+error:
+    if (clip != extents->clip)
+	_cairo_clip_destroy (clip);
+    cairo_surface_destroy (mask);
+    return status;
+}
+
+static cairo_int_status_t
+_cairo_shape_mask_compositor_glyphs (const cairo_compositor_t *_compositor,
+				     cairo_composite_rectangles_t *extents,
+				     cairo_scaled_font_t	*scaled_font,
+				     cairo_glyph_t		*glyphs,
+				     int			 num_glyphs,
+				     cairo_bool_t		 overlap)
+{
+    cairo_surface_t *mask;
+    cairo_surface_pattern_t pattern;
+    cairo_int_status_t status;
+    cairo_clip_t *clip;
+
+    if (! extents->is_bounded)
+	return CAIRO_INT_STATUS_UNSUPPORTED;
+
+    TRACE ((stderr, "%s\n", __FUNCTION__));
+    mask = _cairo_surface_create_scratch (extents->surface,
+					  CAIRO_CONTENT_ALPHA,
+					  extents->bounded.width,
+					  extents->bounded.height,
+					  NULL);
+    if (unlikely (mask->status))
+	return mask->status;
+
+    clip = extents->clip;
+    if (! _cairo_clip_is_region (clip))
+	clip = _cairo_clip_copy_region (clip);
+
+    if (! mask->is_clear) {
+	status = _cairo_surface_offset_paint (mask,
+					      extents->bounded.x,
+					      extents->bounded.y,
+					      CAIRO_OPERATOR_CLEAR,
+					      &_cairo_pattern_clear.base,
+					      clip);
+	if (unlikely (status))
+	    goto error;
+    }
+
+    status = _cairo_surface_offset_glyphs (mask,
+					   extents->bounded.x,
+					   extents->bounded.y,
+					   CAIRO_OPERATOR_ADD,
+					   &_cairo_pattern_white.base,
+					   scaled_font, glyphs, num_glyphs,
+					   clip);
+    if (unlikely (status))
+	goto error;
+
+    if (clip != extents->clip) {
+	status = _cairo_clip_combine_with_surface (extents->clip, mask,
+						   extents->bounded.x,
+						   extents->bounded.y);
+	if (unlikely (status))
+	    goto error;
+    }
+
+    _cairo_pattern_init_for_surface (&pattern, mask);
+    cairo_matrix_init_translate (&pattern.base.matrix,
+				 -extents->bounded.x,
+				 -extents->bounded.y);
+    pattern.base.filter = CAIRO_FILTER_NEAREST;
+    pattern.base.extend = CAIRO_EXTEND_NONE;
+    if (extents->op == CAIRO_OPERATOR_SOURCE) {
+	status = _cairo_surface_mask (extents->surface,
+				      CAIRO_OPERATOR_DEST_OUT,
+				      &_cairo_pattern_white.base,
+				      &pattern.base,
+				      clip);
+	if ((status == CAIRO_INT_STATUS_SUCCESS)) {
+	    status = _cairo_surface_mask (extents->surface,
+					  CAIRO_OPERATOR_ADD,
+					  &extents->source_pattern.base,
+					  &pattern.base,
+					  clip);
+	}
+    } else {
+	status = _cairo_surface_mask (extents->surface,
+				      extents->op,
+				      &extents->source_pattern.base,
+				      &pattern.base,
+				      clip);
+    }
+    _cairo_pattern_fini (&pattern.base);
+
+error:
+    if (clip != extents->clip)
+	_cairo_clip_destroy (clip);
+    cairo_surface_destroy (mask);
+    return status;
+}
+
+void
+_cairo_shape_mask_compositor_init (cairo_compositor_t *compositor,
+				   const cairo_compositor_t  *delegate)
+{
+    compositor->delegate = delegate;
+
+    compositor->paint  = NULL;
+    compositor->mask   = NULL;
+    compositor->fill   = _cairo_shape_mask_compositor_fill;
+    compositor->stroke = _cairo_shape_mask_compositor_stroke;
+    compositor->glyphs = _cairo_shape_mask_compositor_glyphs;
+}