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-rw-r--r--libs/cairo-1.16.0/src/cairo-gl-source.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-gl-source.c b/libs/cairo-1.16.0/src/cairo-gl-source.c
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index 0000000..7e0ee4a
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+++ b/libs/cairo-1.16.0/src/cairo-gl-source.c
@@ -0,0 +1,113 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2011 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 Red Hat, Inc.
+ *
+ * Contributor(s):
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-gl-private.h"
+
+#include "cairo-surface-backend-private.h"
+
+static cairo_status_t
+_cairo_gl_source_finish (void *abstract_surface)
+{
+ cairo_gl_source_t *source = abstract_surface;
+
+ _cairo_gl_operand_destroy (&source->operand);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static const cairo_surface_backend_t cairo_gl_source_backend = {
+ CAIRO_SURFACE_TYPE_GL,
+ _cairo_gl_source_finish,
+ NULL, /* read-only wrapper */
+};
+
+cairo_surface_t *
+_cairo_gl_pattern_to_source (cairo_surface_t *dst,
+ const cairo_pattern_t *pattern,
+ cairo_bool_t is_mask,
+ const cairo_rectangle_int_t *extents,
+ const cairo_rectangle_int_t *sample,
+ int *src_x, int *src_y)
+{
+ cairo_gl_source_t *source;
+ cairo_int_status_t status;
+
+ TRACE ((stderr, "%s\n", __FUNCTION__));
+ if (pattern == NULL)
+ return _cairo_gl_white_source ();
+
+ source = _cairo_malloc (sizeof (*source));
+ if (unlikely (source == NULL))
+ return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+
+ _cairo_surface_init (&source->base,
+ &cairo_gl_source_backend,
+ NULL, /* device */
+ CAIRO_CONTENT_COLOR_ALPHA,
+ FALSE); /* is_vector */
+
+ *src_x = *src_y = 0;
+ status = _cairo_gl_operand_init (&source->operand, pattern,
+ (cairo_gl_surface_t *)dst,
+ sample, extents,
+ FALSE);
+ if (unlikely (status)) {
+ cairo_surface_destroy (&source->base);
+ return _cairo_surface_create_in_error (status);
+ }
+
+ return &source->base;
+}
+
+cairo_surface_t *
+_cairo_gl_white_source (void)
+{
+ cairo_gl_source_t *source;
+
+ source = _cairo_malloc (sizeof (*source));
+ if (unlikely (source == NULL))
+ return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+
+ _cairo_surface_init (&source->base,
+ &cairo_gl_source_backend,
+ NULL, /* device */
+ CAIRO_CONTENT_COLOR_ALPHA,
+ FALSE); /* is_vector */
+
+ _cairo_gl_solid_operand_init (&source->operand, CAIRO_COLOR_WHITE);
+
+ return &source->base;
+}