| 1 | <?xml version="1.0" encoding="UTF-8"?> |
| 2 | <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN" |
| 3 | "http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd"> |
| 4 | <refentry id="glGenTextures"> |
| 5 | <refmeta> |
| 6 | <refmetainfo> |
| 7 | <copyright> |
| 8 | <year>1991-2006</year> |
| 9 | <holder>Silicon Graphics, Inc.</holder> |
| 10 | </copyright> |
| 11 | </refmetainfo> |
| 12 | <refentrytitle>glGenTextures</refentrytitle> |
| 13 | <manvolnum>3G</manvolnum> |
| 14 | </refmeta> |
| 15 | <refnamediv> |
| 16 | <refname>glGenTextures</refname> |
| 17 | <refpurpose>generate texture names</refpurpose> |
| 18 | </refnamediv> |
| 19 | <refsynopsisdiv><title>C Specification</title> |
| 20 | <funcsynopsis> |
| 21 | <funcprototype> |
| 22 | <funcdef>void <function>glGenTextures</function></funcdef> |
| 23 | <paramdef>GLsizei <parameter>n</parameter></paramdef> |
| 24 | <paramdef>GLuint * <parameter>textures</parameter></paramdef> |
| 25 | </funcprototype> |
| 26 | </funcsynopsis> |
| 27 | </refsynopsisdiv> |
| 28 | <refsect1 id="parameters"><title>Parameters</title> |
| 29 | <variablelist> |
| 30 | <varlistentry> |
| 31 | <term><parameter>n</parameter></term> |
| 32 | <listitem> |
| 33 | <para> |
| 34 | Specifies the number of texture names to be generated. |
| 35 | </para> |
| 36 | </listitem> |
| 37 | </varlistentry> |
| 38 | <varlistentry> |
| 39 | <term><parameter>textures</parameter></term> |
| 40 | <listitem> |
| 41 | <para> |
| 42 | Specifies an array in which the generated texture names are stored. |
| 43 | </para> |
| 44 | </listitem> |
| 45 | </varlistentry> |
| 46 | </variablelist> |
| 47 | </refsect1> |
| 48 | <refsect1 id="description"><title>Description</title> |
| 49 | <para> |
| 50 | <function>glGenTextures</function> returns <parameter>n</parameter> texture names in <parameter>textures</parameter>. |
| 51 | There is no guarantee that the names form a contiguous set of integers; |
| 52 | however, it is guaranteed that none of the returned names was in use |
| 53 | immediately before the call to <function>glGenTextures</function>. |
| 54 | </para> |
| 55 | <para> |
| 56 | The generated textures have no dimensionality; they assume the dimensionality |
| 57 | of the texture target to which they are first bound |
| 58 | (see <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>). |
| 59 | </para> |
| 60 | <para> |
| 61 | Texture names returned by a call to <function>glGenTextures</function> are not returned by |
| 62 | subsequent calls, unless they are first deleted with |
| 63 | <citerefentry><refentrytitle>glDeleteTextures</refentrytitle></citerefentry>. |
| 64 | </para> |
| 65 | </refsect1> |
| 66 | <refsect1 id="notes"><title>Notes</title> |
| 67 | <para> |
| 68 | <function>glGenTextures</function> is available only if the GL version is 1.1 or greater. |
| 69 | </para> |
| 70 | </refsect1> |
| 71 | <refsect1 id="errors"><title>Errors</title> |
| 72 | <para> |
| 73 | <constant>GL_INVALID_VALUE</constant> is generated if <parameter>n</parameter> is negative. |
| 74 | </para> |
| 75 | <para> |
| 76 | <constant>GL_INVALID_OPERATION</constant> is generated if <function>glGenTextures</function> is executed |
| 77 | between the execution of <citerefentry><refentrytitle>glBegin</refentrytitle></citerefentry> and the corresponding |
| 78 | execution of <citerefentry><refentrytitle>glEnd</refentrytitle></citerefentry>. |
| 79 | </para> |
| 80 | </refsect1> |
| 81 | <refsect1 id="associatedgets"><title>Associated Gets</title> |
| 82 | <para> |
| 83 | <citerefentry><refentrytitle>glIsTexture</refentrytitle></citerefentry> |
| 84 | </para> |
| 85 | </refsect1> |
| 86 | <refsect1 id="seealso"><title>See Also</title> |
| 87 | <para> |
| 88 | <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>, |
| 89 | <citerefentry><refentrytitle>glCopyTexImage1D</refentrytitle></citerefentry>, |
| 90 | <citerefentry><refentrytitle>glCopyTexImage2D</refentrytitle></citerefentry>, |
| 91 | <citerefentry><refentrytitle>glDeleteTextures</refentrytitle></citerefentry>, |
| 92 | <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry>, |
| 93 | <citerefentry><refentrytitle>glGetTexParameter</refentrytitle></citerefentry>, |
| 94 | <citerefentry><refentrytitle>glTexImage1D</refentrytitle></citerefentry>, |
| 95 | <citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>, |
| 96 | <citerefentry><refentrytitle>glTexImage3D</refentrytitle></citerefentry>, |
| 97 | <citerefentry><refentrytitle>glTexParameter</refentrytitle></citerefentry> |
| 98 | </para> |
| 99 | </refsect1> |
| 100 | <refsect1 id="Copyright"><title>Copyright</title> |
| 101 | <para> |
| 102 | Copyright <trademark class="copyright"></trademark> 1991-2006 |
| 103 | Silicon Graphics, Inc. This document is licensed under the SGI |
| 104 | Free Software B License. For details, see |
| 105 | <ulink url="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</ulink>. |
| 106 | </para> |
| 107 | </refsect1> |
| 108 | </refentry> |