mutter/cogl/cogl-pixel-buffer-private.h
Damien Lespiau 47cc5a4e43 cogl-pixel-buffer: add a pixel buffer object class
This subclass of CoglBuffer aims at wrapping PBOs or other system
surfaces like DRM buffer objects. Two constructors are available:

cogl_pixel_buffer_new() with a size when you only care about the size of
the buffer (such a buffer can be used to store several texture data such
as the three planes of a I420 frame).

cogl_pixel_buffer_new_full() is more a 1:1 mapping between the data and
an underlying surface, with the possibility of having access to a low
level memory buffer that may have a stride.
2010-02-08 17:14:49 +00:00

73 lines
2.0 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors:
* Damien Lespiau <damien.lespiau@intel.com>
*/
#ifndef __COGL_PIXEL_BUFFER_PRIVATE_H__
#define __COGL_PIXEL_BUFFER_PRIVATE_H__
#include "cogl-handle.h"
#include "cogl-buffer-private.h"
#include <glib.h>
G_BEGIN_DECLS
#define COGL_PIXEL_BUFFER(buffer) ((CoglPixelBuffer *)(buffer))
#define COGL_PIXEL_BUFFER_SET_FLAG(buffer, flag) \
((buffer)->flags |= (COGL_PIXEL_BUFFER_FLAG_ ## flag))
#define COGL_PIXEL_BUFFER_CLEAR_FLAG(buffer, flag) \
((buffer)->flags &= ~(COGL_PIXEL_BUFFER_FLAG_ ## flag))
#define COGL_PIXEL_BUFFER_FLAG_IS_SET(buffer, flag) \
((buffer)->flags & (COGL_PIXEL_BUFFER_FLAG_ ## flag))
typedef enum _CoglPixelBufferFlags
{
COGL_PIXEL_BUFFER_FLAG_NONE = 0,
COGL_PIXEL_BUFFER_FLAG_STORE_CREATED = 1 << 0,
} CoglPixelBufferFlags;
typedef struct _CoglPixelBuffer
{
CoglBuffer _parent;
CoglPixelBufferFlags flags;
GLenum gl_target;
CoglPixelFormat format;
guint width;
guint height;
guint stride;
} CoglPixelBuffer;
GQuark _cogl_handle_pixel_buffer_get_type (void);
G_END_DECLS
#endif /* __COGL_PIXEL_BUFFER_PRIVATE_H__ */