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/*
* Cogl
*
* A Low Level GPU Graphics and Utilities API
*
* Copyright (C) 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.
*
*
*
* 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"
#include "cogl-gtype-private.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)
COGL_GTYPE_DEFINE_CLASS (PixelBuffer, pixel_buffer)
static 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;
}
CoglPixelBuffer *
cogl_pixel_buffer_new (CoglContext *context,
size_t size,
const void *data)
{
CoglError *ignore_error = NULL;
CoglPixelBuffer *buffer =
_cogl_pixel_buffer_new (context, size, data, &ignore_error);
if (!buffer)
cogl_error_free (ignore_error);
return 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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