| /* 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 */ |