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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
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<title>GStreamer VA-API Plugins 1.4 Library Reference Manual: GstVaapiWindowGLX</title>
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                  <a href="#libs-GstVaapiWindowGLX.description" class="shortcut">Description</a></span>
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<div class="refentry">
<a name="libs-GstVaapiWindowGLX"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libs-GstVaapiWindowGLX.top_of_page"></a>GstVaapiWindowGLX</span></h2>
<p>GstVaapiWindowGLX — VA/GLX window abstraction</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libs-GstVaapiWindowGLX.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="libs-GstVaapiWindow.html#GstVaapiWindow" title="GstVaapiWindow"><span class="returnvalue">GstVaapiWindow</span></a> *
</td>
<td class="function_name">
<a class="link" href="libs-GstVaapiWindowGLX.html#gst-vaapi-window-glx-new" title="gst_vaapi_window_glx_new ()">gst_vaapi_window_glx_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="libs-GstVaapiWindow.html#GstVaapiWindow" title="GstVaapiWindow"><span class="returnvalue">GstVaapiWindow</span></a> *
</td>
<td class="function_name">
<a class="link" href="libs-GstVaapiWindowGLX.html#gst-vaapi-window-glx-new-with-xid" title="gst_vaapi_window_glx_new_with_xid ()">gst_vaapi_window_glx_new_with_xid</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">GLXContext</span>
</td>
<td class="function_name">
<a class="link" href="libs-GstVaapiWindowGLX.html#gst-vaapi-window-glx-get-context" title="gst_vaapi_window_glx_get_context ()">gst_vaapi_window_glx_get_context</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libs-GstVaapiWindowGLX.html#gst-vaapi-window-glx-set-context" title="gst_vaapi_window_glx_set_context ()">gst_vaapi_window_glx_set_context</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libs-GstVaapiWindowGLX.html#gst-vaapi-window-glx-make-current" title="gst_vaapi_window_glx_make_current ()">gst_vaapi_window_glx_make_current</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libs-GstVaapiWindowGLX.html#gst-vaapi-window-glx-swap-buffers" title="gst_vaapi_window_glx_swap_buffers ()">gst_vaapi_window_glx_swap_buffers</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libs-GstVaapiWindowGLX.html#gst-vaapi-window-glx-put-texture" title="gst_vaapi_window_glx_put_texture ()">gst_vaapi_window_glx_put_texture</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libs-GstVaapiWindowGLX.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX">GstVaapiWindowGLX</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libs-GstVaapiWindowGLX.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="libs-GstVaapiWindowGLX.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gst-vaapi-window-glx-new"></a><h3>gst_vaapi_window_glx_new ()</h3>
<pre class="programlisting"><a class="link" href="libs-GstVaapiWindow.html#GstVaapiWindow" title="GstVaapiWindow"><span class="returnvalue">GstVaapiWindow</span></a> *
gst_vaapi_window_glx_new (<em class="parameter"><code><a class="link" href="libs-GstVaapiDisplay.html#GstVaapiDisplay" title="GstVaapiDisplay"><span class="type">GstVaapiDisplay</span></a> *display</code></em>,
                          <em class="parameter"><code><span class="type">guint</span> width</code></em>,
                          <em class="parameter"><code><span class="type">guint</span> height</code></em>);</pre>
<p>Creates a window with the specified <em class="parameter"><code>width</code></em>
 and <em class="parameter"><code>height</code></em>
. The window
will be attached to the <em class="parameter"><code>display</code></em>
 and remains invisible to the user
until <a class="link" href="libs-GstVaapiWindow.html#gst-vaapi-window-show" title="gst_vaapi_window_show ()"><code class="function">gst_vaapi_window_show()</code></a> is called.</p>
<div class="refsect3">
<a name="id-1.2.9.6.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>display</p></td>
<td class="parameter_description"><p>a <a class="link" href="libs-GstVaapiDisplay.html#GstVaapiDisplay" title="GstVaapiDisplay"><span class="type">GstVaapiDisplay</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>width</p></td>
<td class="parameter_description"><p>the requested window width, in pixels</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>height</p></td>
<td class="parameter_description"><p>the requested windo height, in pixels</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.6.2.6"></a><h4>Returns</h4>
<p> the newly allocated <a class="link" href="libs-GstVaapiWindow.html#GstVaapiWindow" title="GstVaapiWindow"><span class="type">GstVaapiWindow</span></a> object</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-vaapi-window-glx-new-with-xid"></a><h3>gst_vaapi_window_glx_new_with_xid ()</h3>
<pre class="programlisting"><a class="link" href="libs-GstVaapiWindow.html#GstVaapiWindow" title="GstVaapiWindow"><span class="returnvalue">GstVaapiWindow</span></a> *
gst_vaapi_window_glx_new_with_xid (<em class="parameter"><code><a class="link" href="libs-GstVaapiDisplay.html#GstVaapiDisplay" title="GstVaapiDisplay"><span class="type">GstVaapiDisplay</span></a> *display</code></em>,
                                   <em class="parameter"><code><span class="type">Window</span> xid</code></em>);</pre>
<p>Creates a <a class="link" href="libs-GstVaapiWindow.html#GstVaapiWindow" title="GstVaapiWindow"><span class="type">GstVaapiWindow</span></a> using the X11 <span class="type">Window</span> <em class="parameter"><code>xid</code></em>
. The caller
still owns the window and must call <code class="function">XDestroyWindow()</code> when all
<a class="link" href="libs-GstVaapiWindow.html#GstVaapiWindow" title="GstVaapiWindow"><span class="type">GstVaapiWindow</span></a> references are released. Doing so too early can
yield undefined behaviour.</p>
<div class="refsect3">
<a name="id-1.2.9.6.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>display</p></td>
<td class="parameter_description"><p>a <a class="link" href="libs-GstVaapiDisplay.html#GstVaapiDisplay" title="GstVaapiDisplay"><span class="type">GstVaapiDisplay</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xid</p></td>
<td class="parameter_description"><p>an X11 <span class="type">Window</span> id</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.6.3.6"></a><h4>Returns</h4>
<p> the newly allocated <a class="link" href="libs-GstVaapiWindow.html#GstVaapiWindow" title="GstVaapiWindow"><span class="type">GstVaapiWindow</span></a> object</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-vaapi-window-glx-get-context"></a><h3>gst_vaapi_window_glx_get_context ()</h3>
<pre class="programlisting"><span class="returnvalue">GLXContext</span>
gst_vaapi_window_glx_get_context (<em class="parameter"><code><a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a> *window</code></em>);</pre>
<p>Returns the <span class="type">GLXContext</span> bound to the <em class="parameter"><code>window</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.9.6.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>window</p></td>
<td class="parameter_description"><p>a <a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.6.4.6"></a><h4>Returns</h4>
<p> the <span class="type">GLXContext</span> bound to the <em class="parameter"><code>window</code></em>
</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-vaapi-window-glx-set-context"></a><h3>gst_vaapi_window_glx_set_context ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gst_vaapi_window_glx_set_context (<em class="parameter"><code><a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a> *window</code></em>,
                                  <em class="parameter"><code><span class="type">GLXContext</span> ctx</code></em>);</pre>
<p>Binds GLX context <em class="parameter"><code>ctx</code></em>
 to <em class="parameter"><code>window</code></em>
. If <em class="parameter"><code>ctx</code></em>
 is non <code class="literal">NULL</code>, the caller
is responsible to making sure it has compatible visual with that of
the underlying X window. If <em class="parameter"><code>ctx</code></em>
 is <code class="literal">NULL</code>, a new context is created
and the <em class="parameter"><code>window</code></em>
 owns it.</p>
<div class="refsect3">
<a name="id-1.2.9.6.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>window</p></td>
<td class="parameter_description"><p>a <a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>ctx</p></td>
<td class="parameter_description"><p>a GLX context</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.6.5.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> on success</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-vaapi-window-glx-make-current"></a><h3>gst_vaapi_window_glx_make_current ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gst_vaapi_window_glx_make_current (<em class="parameter"><code><a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a> *window</code></em>);</pre>
<p>Makes the <em class="parameter"><code>window</code></em>
 GLX context the current GLX rendering context of
the calling thread, replacing the previously current context if
there was one.</p>
<div class="refsect3">
<a name="id-1.2.9.6.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>window</p></td>
<td class="parameter_description"><p>a <a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.6.6.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> on success</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-vaapi-window-glx-swap-buffers"></a><h3>gst_vaapi_window_glx_swap_buffers ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_vaapi_window_glx_swap_buffers (<em class="parameter"><code><a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a> *window</code></em>);</pre>
<p>Promotes the contents of the back buffer of <em class="parameter"><code>window</code></em>
 to become the
contents of the front buffer of <em class="parameter"><code>window</code></em>
. This simply is wrapper
around <code class="function">glXSwapBuffers()</code>.</p>
<div class="refsect3">
<a name="id-1.2.9.6.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>window</p></td>
<td class="parameter_description"><p>a <a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-vaapi-window-glx-put-texture"></a><h3>gst_vaapi_window_glx_put_texture ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gst_vaapi_window_glx_put_texture (<em class="parameter"><code><a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a> *window</code></em>,
                                  <em class="parameter"><code><a class="link" href="libs-GstVaapiTexture.html#GstVaapiTexture" title="GstVaapiTexture"><span class="type">GstVaapiTexture</span></a> *texture</code></em>,
                                  <em class="parameter"><code>const <a class="link" href="libs-Basic-data-structures.html#GstVaapiRectangle" title="struct GstVaapiRectangle"><span class="type">GstVaapiRectangle</span></a> *src_rect</code></em>,
                                  <em class="parameter"><code>const <a class="link" href="libs-Basic-data-structures.html#GstVaapiRectangle" title="struct GstVaapiRectangle"><span class="type">GstVaapiRectangle</span></a> *dst_rect</code></em>);</pre>
<p>Renders the <em class="parameter"><code>texture</code></em>
 region specified by <em class="parameter"><code>src_rect</code></em>
 into the <em class="parameter"><code>window</code></em>

region specified by <em class="parameter"><code>dst_rect</code></em>
.</p>
<p>NOTE: only GL_TEXTURE_2D textures are supported at this time.</p>
<div class="refsect3">
<a name="id-1.2.9.6.8.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>window</p></td>
<td class="parameter_description"><p>a <a class="link" href="libs-GstVaapiWindowGLX.html#GstVaapiWindowGLX" title="GstVaapiWindowGLX"><span class="type">GstVaapiWindowGLX</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="libs-GstVaapiTexture.html#GstVaapiTexture" title="GstVaapiTexture"><span class="type">GstVaapiTexture</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>src_rect</p></td>
<td class="parameter_description"><p>the sub-rectangle of the source texture to
extract and process. If <code class="literal">NULL</code>, the entire texture will be used.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dst_rect</p></td>
<td class="parameter_description"><p>the sub-rectangle of the destination
window into which the texture is rendered. If <code class="literal">NULL</code>, the entire
window will be used.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.6.8.7"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> on success</p>
<p></p>
</div>
</div>
</div>
<div class="refsect1">
<a name="libs-GstVaapiWindowGLX.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstVaapiWindowGLX"></a><h3>GstVaapiWindowGLX</h3>
<pre class="programlisting">typedef struct _GstVaapiWindowGLX GstVaapiWindowGLX;</pre>
<p>An X11 <span class="type">Window</span> suitable for GLX rendering.</p>
</div>
</div>
</div>
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