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<div class="refentry">
<a name="cogl-Shaders-and-Programmable-Pipeline-(Deprecated)"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).top_of_page"></a>Shaders and Programmable Pipeline (Deprecated)</span></h2>
<p>Shaders and Programmable Pipeline (Deprecated)</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="returnvalue">CoglHandle</span></a> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-shader-ref" title="cogl_shader_ref ()">cogl_shader_ref</a> (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);
<span class="returnvalue">void</span> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-shader-unref" title="cogl_shader_unref ()">cogl_shader_unref</a> (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);
<a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="returnvalue">CoglHandle</span></a> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-ref" title="cogl_program_ref ()">cogl_program_ref</a> (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);
<span class="returnvalue">void</span> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-unref" title="cogl_program_unref ()">cogl_program_unref</a> (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);
<span class="returnvalue">void</span> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-use" title="cogl_program_use ()">cogl_program_use</a> (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);
<span class="returnvalue">void</span> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-uniform-1f" title="cogl_program_uniform_1f ()">cogl_program_uniform_1f</a> (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">float</span> value</code></em>);
<span class="returnvalue">void</span> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-uniform-1i" title="cogl_program_uniform_1i ()">cogl_program_uniform_1i</a> (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">int</span> value</code></em>);
<span class="returnvalue">void</span> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-uniform-float" title="cogl_program_uniform_float ()">cogl_program_uniform_float</a> (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">int</span> size</code></em>,
<em class="parameter"><code><span class="type">int</span> count</code></em>,
<em class="parameter"><code>const <span class="type">float</span> *value</code></em>);
<span class="returnvalue">void</span> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-uniform-int" title="cogl_program_uniform_int ()">cogl_program_uniform_int</a> (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">int</span> size</code></em>,
<em class="parameter"><code><span class="type">int</span> count</code></em>,
<em class="parameter"><code>const <span class="type">int</span> *value</code></em>);
<span class="returnvalue">void</span> <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-uniform-matrix" title="cogl_program_uniform_matrix ()">cogl_program_uniform_matrix</a> (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">int</span> size</code></em>,
<em class="parameter"><code><span class="type">int</span> count</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> transpose</code></em>,
<em class="parameter"><code>const <span class="type">float</span> *value</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).details"></a><h2>Details</h2>
<div class="refsect2">
<a name="cogl-shader-ref"></a><h3>cogl_shader_ref ()</h3>
<pre class="programlisting"><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="returnvalue">CoglHandle</span></a> cogl_shader_ref (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_shader_ref</code> has been deprecated since version 1.0 and should not be used in newly-written code. Please use <a class="link" href="cogl-General-API.html#cogl-handle-ref" title="cogl_handle_ref ()"><code class="function">cogl_handle_ref()</code></a> instead.</p>
</div>
<p>
Add an extra reference to a shader.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td>A <a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> to a shader.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td><em class="parameter"><code>handle</code></em></td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-shader-unref"></a><h3>cogl_shader_unref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> cogl_shader_unref (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_shader_unref</code> has been deprecated since version 1.0 and should not be used in newly-written code. Please use <a class="link" href="cogl-General-API.html#cogl-handle-unref" title="cogl_handle_unref ()"><code class="function">cogl_handle_unref()</code></a> instead.</p>
</div>
<p>
Removes a reference to a shader. If it was the last reference the
shader object will be destroyed.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td>A <a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> to a shader.</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-program-ref"></a><h3>cogl_program_ref ()</h3>
<pre class="programlisting"><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="returnvalue">CoglHandle</span></a> cogl_program_ref (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_program_ref</code> has been deprecated since version 1.0 and should not be used in newly-written code. Please use <a class="link" href="cogl-General-API.html#cogl-handle-ref" title="cogl_handle_ref ()"><code class="function">cogl_handle_ref()</code></a> instead.</p>
</div>
<p>
Add an extra reference to a program.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td>A <a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> to a program.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td><em class="parameter"><code>handle</code></em></td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-program-unref"></a><h3>cogl_program_unref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> cogl_program_unref (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_program_unref</code> has been deprecated since version 1.0 and should not be used in newly-written code. Please use <a class="link" href="cogl-General-API.html#cogl-handle-unref" title="cogl_handle_unref ()"><code class="function">cogl_handle_unref()</code></a> instead.</p>
</div>
<p>
Removes a reference to a program. If it was the last reference the
program object will be destroyed.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td>A <a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> to a program.</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-program-use"></a><h3>cogl_program_use ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> cogl_program_use (<em class="parameter"><code><a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> handle</code></em>);</pre>
<p>
Activate a specific shader program replacing that part of the GL
rendering pipeline, if passed in <a class="link" href="cogl-General-API.html#COGL-INVALID-HANDLE:CAPS" title="COGL_INVALID_HANDLE"><code class="literal">COGL_INVALID_HANDLE</code></a> the default
behavior of GL is reinstated.
</p>
<p>
This function affects the global state of the current Cogl
context. It is much more efficient to attach the shader to a
specific material used for rendering instead by calling
<a class="link" href="cogl-Materials.html#cogl-material-set-user-program" title="cogl_material_set_user_program ()"><code class="function">cogl_material_set_user_program()</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>handle</code></em> :</span></p></td>
<td>a <a class="link" href="cogl-General-API.html#CoglHandle" title="CoglHandle"><span class="type">CoglHandle</span></a> for a shader program or <a class="link" href="cogl-General-API.html#COGL-INVALID-HANDLE:CAPS" title="COGL_INVALID_HANDLE"><code class="literal">COGL_INVALID_HANDLE</code></a>.</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-program-uniform-1f"></a><h3>cogl_program_uniform_1f ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> cogl_program_uniform_1f (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">float</span> value</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_program_uniform_1f</code> has been deprecated since version 1.4 and should not be used in newly-written code. Use <a class="link" href="cogl-Shaders-and-Programmable-Pipeline.html#cogl-program-set-uniform-1f" title="cogl_program_set_uniform_1f ()"><code class="function">cogl_program_set_uniform_1f()</code></a> instead.</p>
</div>
<p>
Changes the value of a floating point uniform in the currently
used (see <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-use" title="cogl_program_use ()"><code class="function">cogl_program_use()</code></a>) shader program.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>uniform_no</code></em> :</span></p></td>
<td>the uniform to set.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>the new value of the uniform.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-program-uniform-1i"></a><h3>cogl_program_uniform_1i ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> cogl_program_uniform_1i (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">int</span> value</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_program_uniform_1i</code> has been deprecated since version 1.4 and should not be used in newly-written code. Use <a class="link" href="cogl-Shaders-and-Programmable-Pipeline.html#cogl-program-set-uniform-1i" title="cogl_program_set_uniform_1i ()"><code class="function">cogl_program_set_uniform_1i()</code></a> instead.</p>
</div>
<p>
Changes the value of an integer uniform in the currently
used (see <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-use" title="cogl_program_use ()"><code class="function">cogl_program_use()</code></a>) shader program.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>uniform_no</code></em> :</span></p></td>
<td>the uniform to set.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>the new value of the uniform.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-program-uniform-float"></a><h3>cogl_program_uniform_float ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> cogl_program_uniform_float (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">int</span> size</code></em>,
<em class="parameter"><code><span class="type">int</span> count</code></em>,
<em class="parameter"><code>const <span class="type">float</span> *value</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_program_uniform_float</code> has been deprecated since version 1.4 and should not be used in newly-written code. Use <a class="link" href="cogl-Shaders-and-Programmable-Pipeline.html#cogl-program-set-uniform-float" title="cogl_program_set_uniform_float ()"><code class="function">cogl_program_set_uniform_float()</code></a> instead.</p>
</div>
<p>
Changes the value of a float vector uniform, or uniform array in the
currently used (see <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-use" title="cogl_program_use ()"><code class="function">cogl_program_use()</code></a>) shader program.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>uniform_no</code></em> :</span></p></td>
<td>the uniform to set.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>Size of float vector.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>count</code></em> :</span></p></td>
<td>Size of array of uniforms.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>the new value of the uniform. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=count]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-program-uniform-int"></a><h3>cogl_program_uniform_int ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> cogl_program_uniform_int (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">int</span> size</code></em>,
<em class="parameter"><code><span class="type">int</span> count</code></em>,
<em class="parameter"><code>const <span class="type">int</span> *value</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_program_uniform_int</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
Changes the value of a int vector uniform, or uniform array in the
currently used (see <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-use" title="cogl_program_use ()"><code class="function">cogl_program_use()</code></a>) shader program.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>uniform_no</code></em> :</span></p></td>
<td>the uniform to set.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>Size of int vector.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>count</code></em> :</span></p></td>
<td>Size of array of uniforms.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>the new value of the uniform. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=count]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-program-uniform-matrix"></a><h3>cogl_program_uniform_matrix ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> cogl_program_uniform_matrix (<em class="parameter"><code><span class="type">int</span> uniform_no</code></em>,
<em class="parameter"><code><span class="type">int</span> size</code></em>,
<em class="parameter"><code><span class="type">int</span> count</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> transpose</code></em>,
<em class="parameter"><code>const <span class="type">float</span> *value</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">cogl_program_uniform_matrix</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
Changes the value of a matrix uniform, or uniform array in the
currently used (see <a class="link" href="cogl-Shaders-and-Programmable-Pipeline-(Deprecated).html#cogl-program-use" title="cogl_program_use ()"><code class="function">cogl_program_use()</code></a>) shader program. The <em class="parameter"><code>size</code></em>
parameter is used to determine the square size of the matrix.
</p>
<div class="variablelist"><table border="0">
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<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>uniform_no</code></em> :</span></p></td>
<td>the uniform to set.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>Size of matrix.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>count</code></em> :</span></p></td>
<td>Size of array of uniforms.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>transpose</code></em> :</span></p></td>
<td>Whether to transpose the matrix when setting the uniform.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>the new value of the uniform. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=count]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
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