This file is indexed.

/usr/share/gtk-doc/html/cogl/cogl-Buffers.html is in libcogl-doc 1.10.0-0ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Buffers</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="index.html" title="Cogl Reference Manual">
<link rel="up" href="ch02.html" title="Cogl experimental API">
<link rel="prev" href="ch02.html" title="Cogl experimental API">
<link rel="next" href="cogl-Vectors.html" title="Vectors">
<meta name="generator" content="GTK-Doc V1.18 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
<tr valign="middle">
<td><a accesskey="p" href="ch02.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="ch02.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">Cogl Reference Manual</th>
<td><a accesskey="n" href="cogl-Vectors.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#cogl-Buffers.synopsis" class="shortcut">Top</a>
                   | 
                  <a href="#cogl-Buffers.description" class="shortcut">Description</a>
</td></tr>
</table>
<div class="refentry">
<a name="cogl-Buffers"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="cogl-Buffers.top_of_page"></a>Buffers</span></h2>
<p>Buffers — Common buffer functions, including data upload APIs</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="cogl-Buffers.stability-level"></a><h2>Stability Level</h2>
Unstable, unless otherwise indicated
</div>
<div class="refsynopsisdiv">
<a name="cogl-Buffers.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"><span class="returnvalue">gboolean</span>            <a class="link" href="cogl-Buffers.html#cogl-is-buffer" title="cogl_is_buffer ()">cogl_is_buffer</a>                      (<em class="parameter"><code><span class="type">void</span> *object</code></em>);
unsigned <span class="returnvalue">int</span>        <a class="link" href="cogl-Buffers.html#cogl-buffer-get-size" title="cogl_buffer_get_size ()">cogl_buffer_get_size</a>                (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>);
enum                <a class="link" href="cogl-Buffers.html#CoglBufferUpdateHint" title="enum CoglBufferUpdateHint">CoglBufferUpdateHint</a>;
<span class="returnvalue">void</span>                <a class="link" href="cogl-Buffers.html#cogl-buffer-set-update-hint" title="cogl_buffer_set_update_hint ()">cogl_buffer_set_update_hint</a>         (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>,
                                                         <em class="parameter"><code><a class="link" href="cogl-Buffers.html#CoglBufferUpdateHint" title="enum CoglBufferUpdateHint"><span class="type">CoglBufferUpdateHint</span></a> hint</code></em>);
<a class="link" href="cogl-Buffers.html#CoglBufferUpdateHint" title="enum CoglBufferUpdateHint"><span class="returnvalue">CoglBufferUpdateHint</span></a> <a class="link" href="cogl-Buffers.html#cogl-buffer-get-update-hint" title="cogl_buffer_get_update_hint ()">cogl_buffer_get_update_hint</a>        (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>);
enum                <a class="link" href="cogl-Buffers.html#CoglBufferAccess" title="enum CoglBufferAccess">CoglBufferAccess</a>;
<span class="returnvalue">void</span> *              <a class="link" href="cogl-Buffers.html#cogl-buffer-map" title="cogl_buffer_map ()">cogl_buffer_map</a>                     (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>,
                                                         <em class="parameter"><code><a class="link" href="cogl-Buffers.html#CoglBufferAccess" title="enum CoglBufferAccess"><span class="type">CoglBufferAccess</span></a> access</code></em>,
                                                         <em class="parameter"><code><span class="type">CoglBufferMapHint</span> hints</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="cogl-Buffers.html#cogl-buffer-unmap" title="cogl_buffer_unmap ()">cogl_buffer_unmap</a>                   (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="cogl-Buffers.html#cogl-buffer-set-data" title="cogl_buffer_set_data ()">cogl_buffer_set_data</a>                (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>,
                                                         <em class="parameter"><code><span class="type">gsize</span> offset</code></em>,
                                                         <em class="parameter"><code>const <span class="type">void</span> *data</code></em>,
                                                         <em class="parameter"><code><span class="type">gsize</span> size</code></em>);

#define             <a class="link" href="cogl-Buffers.html#cogl-pixel-buffer-new" title="cogl_pixel_buffer_new">cogl_pixel_buffer_new</a>
#define             <a class="link" href="cogl-Buffers.html#cogl-is-pixel-buffer" title="cogl_is_pixel_buffer">cogl_is_pixel_buffer</a>
</pre>
</div>
<div class="refsect1">
<a name="cogl-Buffers.description"></a><h2>Description</h2>
<p>
The CoglBuffer API provides a common interface to manipulate
buffers that have been allocated either via <a class="link" href="cogl-Buffers.html#cogl-pixel-buffer-new" title="cogl_pixel_buffer_new"><code class="function">cogl_pixel_buffer_new()</code></a>
or <code class="function">cogl_attribute_buffer_new()</code>. The API allows you to upload data
to these buffers and define usage hints that help Cogl manage your
buffer optimally.
</p>
<p>
Data can either be uploaded by supplying a pointer and size so Cogl
can copy your data, or you can <code class="function">mmap()</code> a CoglBuffer and then you can
copy data to the buffer directly.
</p>
<p>
One of the most common uses for CoglBuffers is to upload texture
data asynchronously since the ability to mmap the buffers into
the CPU makes it possible for another thread to handle the IO
of loading an image file and unpacking it into the mapped buffer
without blocking other Cogl operations.
</p>
</div>
<div class="refsect1">
<a name="cogl-Buffers.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="cogl-is-buffer"></a><h3>cogl_is_buffer ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            cogl_is_buffer                      (<em class="parameter"><code><span class="type">void</span> *object</code></em>);</pre>
<p>
Checks whether <em class="parameter"><code>buffer</code></em> is a buffer object.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>object</code></em> :</span></p></td>
<td>a buffer object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> if the handle is a CoglBuffer, and <code class="literal">FALSE</code> otherwise</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-buffer-get-size"></a><h3>cogl_buffer_get_size ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">int</span>        cogl_buffer_get_size                (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>);</pre>
<p>
Retrieves the size of buffer
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>a buffer object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the size of the buffer in bytes</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="CoglBufferUpdateHint"></a><h3>enum CoglBufferUpdateHint</h3>
<pre class="programlisting">typedef enum {
 /*&lt; prefix=COGL_BUFFER_UPDATE_HINT &gt;*/
  COGL_BUFFER_UPDATE_HINT_STATIC,
  COGL_BUFFER_UPDATE_HINT_DYNAMIC,
  COGL_BUFFER_UPDATE_HINT_STREAM
} CoglBufferUpdateHint;
</pre>
<p>
The update hint on a buffer allows the user to give some detail on how often
the buffer data is going to be updated.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="COGL-BUFFER-UPDATE-HINT-STATIC:CAPS"></a><span class="term"><code class="literal">COGL_BUFFER_UPDATE_HINT_STATIC</code></span></p></td>
<td>the buffer will not change over time
</td>
</tr>
<tr>
<td><p><a name="COGL-BUFFER-UPDATE-HINT-DYNAMIC:CAPS"></a><span class="term"><code class="literal">COGL_BUFFER_UPDATE_HINT_DYNAMIC</code></span></p></td>
<td>the buffer will change from time to time
</td>
</tr>
<tr>
<td><p><a name="COGL-BUFFER-UPDATE-HINT-STREAM:CAPS"></a><span class="term"><code class="literal">COGL_BUFFER_UPDATE_HINT_STREAM</code></span></p></td>
<td>the buffer will be used once or a couple of
  times
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-buffer-set-update-hint"></a><h3>cogl_buffer_set_update_hint ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                cogl_buffer_set_update_hint         (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>,
                                                         <em class="parameter"><code><a class="link" href="cogl-Buffers.html#CoglBufferUpdateHint" title="enum CoglBufferUpdateHint"><span class="type">CoglBufferUpdateHint</span></a> hint</code></em>);</pre>
<p>
Sets the update hint on a buffer. See <a class="link" href="cogl-Buffers.html#CoglBufferUpdateHint" title="enum CoglBufferUpdateHint"><span class="type">CoglBufferUpdateHint</span></a> for a description
of the available hints.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>a buffer object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>hint</code></em> :</span></p></td>
<td>the new hint</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-buffer-get-update-hint"></a><h3>cogl_buffer_get_update_hint ()</h3>
<pre class="programlisting"><a class="link" href="cogl-Buffers.html#CoglBufferUpdateHint" title="enum CoglBufferUpdateHint"><span class="returnvalue">CoglBufferUpdateHint</span></a> cogl_buffer_get_update_hint        (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>);</pre>
<p>
Retrieves the update hints set using <a class="link" href="cogl-Buffers.html#cogl-buffer-set-update-hint" title="cogl_buffer_set_update_hint ()"><code class="function">cogl_buffer_set_update_hint()</code></a>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>a buffer object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <a class="link" href="cogl-Buffers.html#CoglBufferUpdateHint" title="enum CoglBufferUpdateHint"><span class="type">CoglBufferUpdateHint</span></a> currently used by the buffer</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="CoglBufferAccess"></a><h3>enum CoglBufferAccess</h3>
<pre class="programlisting">typedef enum {
 /*&lt; prefix=COGL_BUFFER_ACCESS &gt;*/
 COGL_BUFFER_ACCESS_READ       = 1 &lt;&lt; 0,
 COGL_BUFFER_ACCESS_WRITE      = 1 &lt;&lt; 1,
 COGL_BUFFER_ACCESS_READ_WRITE = COGL_BUFFER_ACCESS_READ | COGL_BUFFER_ACCESS_WRITE
} CoglBufferAccess;
</pre>
<p>
The access hints for <a class="link" href="cogl-Buffers.html#cogl-buffer-set-update-hint" title="cogl_buffer_set_update_hint ()"><code class="function">cogl_buffer_set_update_hint()</code></a>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="COGL-BUFFER-ACCESS-READ:CAPS"></a><span class="term"><code class="literal">COGL_BUFFER_ACCESS_READ</code></span></p></td>
<td>the buffer will be read
</td>
</tr>
<tr>
<td><p><a name="COGL-BUFFER-ACCESS-WRITE:CAPS"></a><span class="term"><code class="literal">COGL_BUFFER_ACCESS_WRITE</code></span></p></td>
<td>the buffer will written to
</td>
</tr>
<tr>
<td><p><a name="COGL-BUFFER-ACCESS-READ-WRITE:CAPS"></a><span class="term"><code class="literal">COGL_BUFFER_ACCESS_READ_WRITE</code></span></p></td>
<td>the buffer will be used for both reading and
  writing
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-buffer-map"></a><h3>cogl_buffer_map ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> *              cogl_buffer_map                     (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>,
                                                         <em class="parameter"><code><a class="link" href="cogl-Buffers.html#CoglBufferAccess" title="enum CoglBufferAccess"><span class="type">CoglBufferAccess</span></a> access</code></em>,
                                                         <em class="parameter"><code><span class="type">CoglBufferMapHint</span> hints</code></em>);</pre>
<p>
Maps the buffer into the application address space for direct access.
</p>
<p>
It is strongly recommended that you pass
<code class="literal">COGL_BUFFER_MAP_HINT_DISCARD</code> as a hint if you are going to replace
all the buffer's data. This way if the buffer is currently being
used by the GPU then the driver won't have to stall the CPU and
wait for the hardware to finish because it can instead allocate a
new buffer to map.
</p>
<p>
The behaviour is undefined if you access the buffer in a way
conflicting with the <em class="parameter"><code>access</code></em> mask you pass. It is also an error to
release your last reference while the buffer is mapped.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>a buffer object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>access</code></em> :</span></p></td>
<td>how the mapped buffer will be used by the application</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>hints</code></em> :</span></p></td>
<td>A mask of <span class="type">CoglBufferMapHint</span>s that tell Cogl how
the data will be modified once mapped.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A pointer to the mapped memory or <code class="literal">NULL</code> is the call fails</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-buffer-unmap"></a><h3>cogl_buffer_unmap ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                cogl_buffer_unmap                   (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>);</pre>
<p>
Unmaps a buffer previously mapped by <a class="link" href="cogl-Buffers.html#cogl-buffer-map" title="cogl_buffer_map ()"><code class="function">cogl_buffer_map()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>a buffer object</td>
</tr></tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-buffer-set-data"></a><h3>cogl_buffer_set_data ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            cogl_buffer_set_data                (<em class="parameter"><code><span class="type">CoglBuffer</span> *buffer</code></em>,
                                                         <em class="parameter"><code><span class="type">gsize</span> offset</code></em>,
                                                         <em class="parameter"><code>const <span class="type">void</span> *data</code></em>,
                                                         <em class="parameter"><code><span class="type">gsize</span> size</code></em>);</pre>
<p>
Updates part of the buffer with new data from <em class="parameter"><code>data</code></em>. Where to put this new
data is controlled by <em class="parameter"><code>offset</code></em> and <em class="parameter"><code>offset</code></em> + <em class="parameter"><code>data</code></em> should be less than the
buffer size.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>a buffer object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td>destination offset (in bytes) in the buffer</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>a pointer to the data to be copied into the buffer</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>number of bytes to copy</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> is the operation succeeded, <code class="literal">FALSE</code> otherwise</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-pixel-buffer-new"></a><h3>cogl_pixel_buffer_new</h3>
<pre class="programlisting">#define cogl_pixel_buffer_new cogl_pixel_buffer_new_EXP
</pre>
<p>
Declares a new <span class="type">CoglPixelBuffer</span> of <em class="parameter"><code>size</code></em> bytes to contain arrays of
pixels. Once declared, data can be set using <a class="link" href="cogl-Buffers.html#cogl-buffer-set-data" title="cogl_buffer_set_data ()"><code class="function">cogl_buffer_set_data()</code></a>
or by mapping it into the application's address space using
<a class="link" href="cogl-Buffers.html#cogl-buffer-map" title="cogl_buffer_map ()"><code class="function">cogl_buffer_map()</code></a>.
</p>
<p>
If <em class="parameter"><code>data</code></em> isn't <code class="literal">NULL</code> then <em class="parameter"><code>size</code></em> bytes will be read from <em class="parameter"><code>data</code></em> and
immediately copied into the new buffer.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td>
<td>A <span class="type">CoglContext</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>The number of bytes to allocate for the pixel data.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>An optional pointer to vertex data to upload immediately</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.10</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-is-pixel-buffer"></a><h3>cogl_is_pixel_buffer</h3>
<pre class="programlisting">#define cogl_is_pixel_buffer cogl_is_pixel_buffer_EXP
</pre>
<p>
Checks whether <em class="parameter"><code>handle</code></em> is a pixel array.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>object</code></em> :</span></p></td>
<td>a <a class="link" href="cogl-General-API.html#CoglObject" title="CoglObject"><span class="type">CoglObject</span></a> to test</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> if the <em class="parameter"><code>handle</code></em> is a pixel array, and <code class="literal">FALSE</code>
otherwise</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.2</p>
<p class="stability">Stability Level: Unstable</p>
</div>
</div>
</div>
<div class="footer">
<hr>
          Generated by GTK-Doc V1.18</div>
</body>
</html>