2010-01-10 18:04:29 +00:00
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/*
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* Cogl
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*
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2014-02-22 01:28:54 +00:00
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* A Low Level GPU Graphics and Utilities API
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2010-01-10 18:04:29 +00:00
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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2014-02-22 01:28:54 +00:00
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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2010-03-01 12:56:10 +00:00
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*
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*
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2010-01-10 18:04:29 +00:00
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*
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* Authors:
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* Damien Lespiau <damien.lespiau@intel.com>
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2010-07-03 22:46:03 +00:00
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* Robert Bragg <robert@linux.intel.com>
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2010-01-10 18:04:29 +00:00
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*/
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/* For an overview of the functionality implemented here, please see
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2011-03-02 15:19:57 +00:00
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* cogl-buffer-array.h, which contains the gtk-doc section overview for the
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2010-01-10 18:04:29 +00:00
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* Pixel Buffers API.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <glib.h>
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2012-02-13 23:02:04 +00:00
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#include "cogl-private.h"
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2010-01-10 18:04:29 +00:00
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#include "cogl-util.h"
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2010-11-04 22:25:52 +00:00
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#include "cogl-context-private.h"
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2010-07-03 19:24:36 +00:00
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#include "cogl-object.h"
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2011-03-02 15:19:57 +00:00
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#include "cogl-pixel-buffer-private.h"
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#include "cogl-pixel-buffer.h"
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2013-09-02 15:02:42 +00:00
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#include "cogl-gtype-private.h"
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2010-01-10 18:04:29 +00:00
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/*
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* GL/GLES compatibility defines for the buffer API:
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*/
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#if defined (HAVE_COGL_GL)
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#ifndef GL_PIXEL_UNPACK_BUFFER
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#define GL_PIXEL_UNPACK_BUFFER GL_PIXEL_UNPACK_BUFFER_ARB
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#endif
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#ifndef GL_PIXEL_PACK_BUFFER
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#define GL_PIXEL_PACK_BUFFER GL_PIXEL_PACK_BUFFER_ARB
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#endif
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#endif
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cogl: improves header and coding style consistency
We've had complaints that our Cogl code/headers are a bit "special" so
this is a first pass at tidying things up by giving them some
consistency. These changes are all consistent with how new code in Cogl
is being written, but the style isn't consistently applied across all
code yet.
There are two parts to this patch; but since each one required a large
amount of effort to maintain tidy indenting it made sense to combine the
changes to reduce the time spent re indenting the same lines.
The first change is to use a consistent style for declaring function
prototypes in headers. Cogl headers now consistently use this style for
prototypes:
return_type
cogl_function_name (CoglType arg0,
CoglType arg1);
Not everyone likes this style, but it seems that most of the currently
active Cogl developers agree on it.
The second change is to constrain the use of redundant glib data types
in Cogl. Uses of gint, guint, gfloat, glong, gulong and gchar have all
been replaced with int, unsigned int, float, long, unsigned long and char
respectively. When talking about pixel data; use of guchar has been
replaced with guint8, otherwise unsigned char can be used.
The glib types that we continue to use for portability are gboolean,
gint{8,16,32,64}, guint{8,16,32,64} and gsize.
The general intention is that Cogl should look palatable to the widest
range of C programmers including those outside the Gnome community so
- especially for the public API - we want to minimize the number of
foreign looking typedefs.
2010-02-10 01:57:32 +00:00
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static void
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2011-03-02 15:19:57 +00:00
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_cogl_pixel_buffer_free (CoglPixelBuffer *buffer);
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2010-01-10 18:04:29 +00:00
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2011-03-02 15:19:57 +00:00
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COGL_BUFFER_DEFINE (PixelBuffer, pixel_buffer)
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2013-09-02 15:02:42 +00:00
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COGL_GTYPE_DEFINE_CLASS (PixelBuffer, pixel_buffer)
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2010-01-10 18:04:29 +00:00
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2012-11-08 17:54:10 +00:00
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static CoglPixelBuffer *
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_cogl_pixel_buffer_new (CoglContext *context,
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size_t size,
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const void *data,
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CoglError **error)
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2010-01-10 18:04:29 +00:00
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{
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2011-03-02 15:19:57 +00:00
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CoglPixelBuffer *pixel_buffer = g_slice_new0 (CoglPixelBuffer);
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CoglBuffer *buffer = COGL_BUFFER (pixel_buffer);
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2010-07-06 00:21:43 +00:00
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2010-01-10 18:04:29 +00:00
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/* parent's constructor */
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_cogl_buffer_initialize (buffer,
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2012-02-06 17:08:58 +00:00
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context,
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2010-01-10 18:04:29 +00:00
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size,
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2010-07-05 22:24:34 +00:00
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COGL_BUFFER_BIND_TARGET_PIXEL_UNPACK,
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2010-02-08 17:11:43 +00:00
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COGL_BUFFER_USAGE_HINT_TEXTURE,
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2010-01-10 18:04:29 +00:00
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COGL_BUFFER_UPDATE_HINT_STATIC);
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2012-02-25 20:04:45 +00:00
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_cogl_pixel_buffer_object_new (pixel_buffer);
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2010-01-10 18:04:29 +00:00
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2012-02-25 20:04:45 +00:00
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if (data)
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2012-11-08 17:54:10 +00:00
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{
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if (!_cogl_buffer_set_data (COGL_BUFFER (pixel_buffer),
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0,
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data,
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size,
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error))
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{
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cogl_object_unref (pixel_buffer);
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return NULL;
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}
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}
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2012-02-25 20:04:45 +00:00
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return pixel_buffer;
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2010-01-10 18:04:29 +00:00
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}
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2012-11-08 17:54:10 +00:00
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CoglPixelBuffer *
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cogl_pixel_buffer_new (CoglContext *context,
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size_t size,
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const void *data)
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{
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CoglError *ignore_error = NULL;
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CoglPixelBuffer *buffer =
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_cogl_pixel_buffer_new (context, size, data, &ignore_error);
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if (!buffer)
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cogl_error_free (ignore_error);
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return buffer;
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}
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2010-01-10 18:04:29 +00:00
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static void
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2011-03-02 15:19:57 +00:00
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_cogl_pixel_buffer_free (CoglPixelBuffer *buffer)
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2010-01-10 18:04:29 +00:00
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{
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/* parent's destructor */
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_cogl_buffer_fini (COGL_BUFFER (buffer));
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2011-03-02 15:19:57 +00:00
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g_slice_free (CoglPixelBuffer, buffer);
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2010-01-10 18:04:29 +00:00
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}
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