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/*
* 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, see <http://www.gnu.org/licenses/>.
*
*
*
* Authors:
* Damien Lespiau <damien.lespiau@intel.com>
* Robert Bragg <robert@linux.intel.com>
*/
/* For an overview of the functionality implemented here, please see
* cogl-buffer-array.h, which contains the gtk-doc section overview for the
* Pixel Buffers API.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include "cogl-private.h"
#include "cogl-util.h"
#include "cogl-context-private.h"
#include "cogl-object.h"
#include "cogl-pixel-buffer-private.h"
#include "cogl-pixel-buffer.h"
/*
* GL/GLES compatibility defines for the buffer API:
*/
#if defined (HAVE_COGL_GL)
#ifndef GL_PIXEL_UNPACK_BUFFER
#define GL_PIXEL_UNPACK_BUFFER GL_PIXEL_UNPACK_BUFFER_ARB
#endif
#ifndef GL_PIXEL_PACK_BUFFER
#define GL_PIXEL_PACK_BUFFER GL_PIXEL_PACK_BUFFER_ARB
#endif
#endif
static void
_cogl_pixel_buffer_free (CoglPixelBuffer *buffer);
COGL_BUFFER_DEFINE (PixelBuffer, pixel_buffer)
CoglPixelBuffer *
cogl_pixel_buffer_new (CoglContext *context,
size_t size,
const void *data,
CoglError **error)
{
CoglPixelBuffer *pixel_buffer = g_slice_new0 (CoglPixelBuffer);
CoglBuffer *buffer = COGL_BUFFER (pixel_buffer);
/* parent's constructor */
_cogl_buffer_initialize (buffer,
context,
size,
COGL_BUFFER_BIND_TARGET_PIXEL_UNPACK,
COGL_BUFFER_USAGE_HINT_TEXTURE,
COGL_BUFFER_UPDATE_HINT_STATIC);
_cogl_pixel_buffer_object_new (pixel_buffer);
if (data)
{
if (!cogl_buffer_set_data (COGL_BUFFER (pixel_buffer),
0,
data,
size,
error))
{
cogl_object_unref (pixel_buffer);
return NULL;
}
}
return pixel_buffer;
}
static void
_cogl_pixel_buffer_free (CoglPixelBuffer *buffer)
{
/* parent's destructor */
_cogl_buffer_fini (COGL_BUFFER (buffer));
g_slice_free (CoglPixelBuffer, buffer);
}
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