47cc5a4e43
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.
72 lines
2 KiB
C
72 lines
2 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Authors:
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* Damien Lespiau <damien.lespiau@intel.com>
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*/
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#ifndef __COGL_PIXEL_BUFFER_PRIVATE_H__
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#define __COGL_PIXEL_BUFFER_PRIVATE_H__
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#include "cogl-handle.h"
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#include "cogl-buffer-private.h"
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#include <glib.h>
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G_BEGIN_DECLS
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#define COGL_PIXEL_BUFFER(buffer) ((CoglPixelBuffer *)(buffer))
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#define COGL_PIXEL_BUFFER_SET_FLAG(buffer, flag) \
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((buffer)->flags |= (COGL_PIXEL_BUFFER_FLAG_ ## flag))
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#define COGL_PIXEL_BUFFER_CLEAR_FLAG(buffer, flag) \
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((buffer)->flags &= ~(COGL_PIXEL_BUFFER_FLAG_ ## flag))
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#define COGL_PIXEL_BUFFER_FLAG_IS_SET(buffer, flag) \
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((buffer)->flags & (COGL_PIXEL_BUFFER_FLAG_ ## flag))
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typedef enum _CoglPixelBufferFlags
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{
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COGL_PIXEL_BUFFER_FLAG_NONE = 0,
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COGL_PIXEL_BUFFER_FLAG_STORE_CREATED = 1 << 0,
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} CoglPixelBufferFlags;
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typedef struct _CoglPixelBuffer
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{
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CoglBuffer _parent;
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CoglPixelBufferFlags flags;
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GLenum gl_target;
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CoglPixelFormat format;
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guint width;
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guint height;
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guint stride;
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} CoglPixelBuffer;
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GQuark _cogl_handle_pixel_buffer_get_type (void);
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G_END_DECLS
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#endif /* __COGL_PIXEL_BUFFER_PRIVATE_H__ */
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