mutter/cogl/cogl-egl.h

/*
 * Cogl
 *
 * A Low Level GPU Graphics and Utilities API
 *
 * Copyright (C) 2007,2008,2009,2010 Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy,
 * modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 *
 */

#ifndef __COGL_EGL_H__
#define __COGL_EGL_H__

/* NB: this is a top-level header that can be included directly but we
 * want to be careful not to define __COGL_H_INSIDE__ when this is
 * included internally while building Cogl itself since
 * __COGL_H_INSIDE__ is used in headers to guard public vs private api
 * definitions
 */
#ifndef COGL_COMPILATION

/* Note: When building Cogl .gir we explicitly define
 * __COGL_EGL_H_INSIDE__ */
#ifndef __COGL_EGL_H_INSIDE__
#define __COGL_EGL_H_INSIDE__
#endif

/* Note: When building Cogl .gir we explicitly define
 * __COGL_H_INSIDE__ */
#ifndef __COGL_H_INSIDE__
#define __COGL_H_INSIDE__
#define __COGL_MUST_UNDEF_COGL_H_INSIDE__
#endif

#endif /* COGL_COMPILATION */


#include <cogl/cogl-egl-defines.h>
#include <cogl/cogl-types.h>

COGL_BEGIN_DECLS

/**
 * cogl_egl_context_get_egl_display:
 * @context: A #CoglContext pointer
 *
 * If you have done a runtime check to determine that Cogl is using
 * EGL internally then this API can be used to retrieve the EGLDisplay
 * handle that was setup internally. The result is undefined if Cogl
 * is not using EGL.
 *
 * Note: The current window system backend can be checked using
 * cogl_renderer_get_winsys_id().
 *
 * Return value: The internally setup EGLDisplay handle.
 * Since: 1.8
 * Stability: unstable
 */
EGLDisplay
cogl_egl_context_get_egl_display (CoglContext *context);

/**
 * cogl_egl_context_get_egl_context:
 * @context: A #CoglContext pointer
 *
 * If you have done a runtime check to determine that Cogl is using
 * EGL internally then this API can be used to retrieve the EGLContext
 * handle that was setup internally. The result is undefined if Cogl
 * is not using EGL.
 *
 * Note: The current window system backend can be checked using
 * cogl_renderer_get_winsys_id().
 *
 * Return value: The internally setup EGLDisplay handle.
 * Since: 1.18
 * Stability: unstable
 */
EGLContext
cogl_egl_context_get_egl_context (CoglContext *context);


COGL_END_DECLS

/* The gobject introspection scanner seems to parse public headers in
 * isolation which means we need to be extra careful about how we
 * define and undefine __COGL_H_INSIDE__ used to detect when internal
 * headers are incorrectly included by developers. In the gobject
 * introspection case we have to manually define __COGL_H_INSIDE__ as
 * a commandline argument for the scanner which means we must be
 * careful not to undefine it in a header...
 */
#ifdef __COGL_MUST_UNDEF_COGL_H_INSIDE__
#undef __COGL_H_INSIDE__
#undef __COGL_EGL_H_INSIDE__
#undef __COGL_MUST_UNDEF_COGL_H_INSIDE__
#endif

#endif /* __COGL_EGL_H__ */