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/* cairo - a vector graphics library with display and print output
*
* Copyright © 2009 Eric Anholt
* Copyright © 2009 Chris Wilson
* Copyright © 2005,2010 Red Hat, Inc
*
* 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):
* Benjamin Otte <otte@gnome.org>
* Carl Worth <cworth@cworth.org>
* Chris Wilson <chris@chris-wilson.co.uk>
* Eric Anholt <eric@anholt.net>
*/
#ifndef CAIRO_GL_GRADIENT_PRIVATE_H
#define CAIRO_GL_GRADIENT_PRIVATE_H
#define GL_GLEXT_PROTOTYPES
#include "cairo-cache-private.h"
#include "cairo-device-private.h"
#include "cairo-reference-count-private.h"
#include "cairo-pattern-private.h"
#include "cairo-types-private.h"
#include "cairo-gl.h"
#if CAIRO_HAS_GL_SURFACE
#include <GL/gl.h>
#include <GL/glext.h>
#elif CAIRO_HAS_GLESV2_SURFACE
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#endif
#define CAIRO_GL_GRADIENT_CACHE_SIZE 4096
/* XXX: Declare in a better place */
typedef struct _cairo_gl_context cairo_gl_context_t;
typedef struct _cairo_gl_gradient {
cairo_cache_entry_t cache_entry;
cairo_reference_count_t ref_count;
cairo_device_t *device; /* NB: we don't hold a reference */
GLuint tex;
unsigned int n_stops;
const cairo_gradient_stop_t *stops;
cairo_gradient_stop_t stops_embedded[1];
} cairo_gl_gradient_t;
cairo_private cairo_int_status_t
_cairo_gl_gradient_create (cairo_gl_context_t *ctx,
unsigned int n_stops,
const cairo_gradient_stop_t *stops,
cairo_gl_gradient_t **gradient_out);
cairo_private_no_warn cairo_gl_gradient_t *
_cairo_gl_gradient_reference (cairo_gl_gradient_t *gradient);
cairo_private void
_cairo_gl_gradient_destroy (cairo_gl_gradient_t *gradient);
cairo_private cairo_bool_t
_cairo_gl_gradient_equal (const void *key_a, const void *key_b);
#endif /* CAIRO_GL_GRADIENT_PRIVATE_H */