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1 | <?xml version="1.0" encoding="UTF-8"?> |
2 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd"> | |
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4 | <?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="stylesheet" type="text/css" href="opengl-man.css" /><title>glTexSubImage3D - OpenGL 3.3 Reference Pages</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glTexSubImage3D"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glTexSubImage3D — specify a three-dimensional texture subimage</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glTexSubImage3D</b>(</code></td><td>GLenum </td><td><var class="pdparam">target</var>, </td></tr><tr><td> </td><td>GLint </td><td><var class="pdparam">level</var>, </td></tr><tr><td> </td><td>GLint </td><td><var class="pdparam">xoffset</var>, </td></tr><tr><td> </td><td>GLint </td><td><var class="pdparam">yoffset</var>, </td></tr><tr><td> </td><td>GLint </td><td><var class="pdparam">zoffset</var>, </td></tr><tr><td> </td><td>GLsizei </td><td><var class="pdparam">width</var>, </td></tr><tr><td> </td><td>GLsizei </td><td><var class="pdparam">height</var>, </td></tr><tr><td> </td><td>GLsizei </td><td><var class="pdparam">depth</var>, </td></tr><tr><td> </td><td>GLenum </td><td><var class="pdparam">format</var>, </td></tr><tr><td> </td><td>GLenum </td><td><var class="pdparam">type</var>, </td></tr><tr><td> </td><td>const GLvoid * </td><td><var class="pdparam">data</var><code>)</code>;</td></tr></table></div></div><p> | |
5 | </p><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>target</code></em></span></dt><dd><p> | |
6 | Specifies the target texture. | |
7 | Must be <code class="constant">GL_TEXTURE_3D</code> or <code class="constant">GL_TEXTURE_2D_ARRAY</code>. | |
8 | </p></dd><dt><span class="term"><em class="parameter"><code>level</code></em></span></dt><dd><p> | |
9 | Specifies the level-of-detail number. | |
10 | Level 0 is the base image level. | |
11 | Level <span class="emphasis"><em>n</em></span> is the <span class="emphasis"><em>n</em></span>th mipmap reduction image. | |
12 | </p></dd><dt><span class="term"><em class="parameter"><code>xoffset</code></em></span></dt><dd><p> | |
13 | Specifies a texel offset in the x direction within the texture array. | |
14 | </p></dd><dt><span class="term"><em class="parameter"><code>yoffset</code></em></span></dt><dd><p> | |
15 | Specifies a texel offset in the y direction within the texture array. | |
16 | </p></dd><dt><span class="term"><em class="parameter"><code>zoffset</code></em></span></dt><dd><p> | |
17 | Specifies a texel offset in the z direction within the texture array. | |
18 | </p></dd><dt><span class="term"><em class="parameter"><code>width</code></em></span></dt><dd><p> | |
19 | Specifies the width of the texture subimage. | |
20 | </p></dd><dt><span class="term"><em class="parameter"><code>height</code></em></span></dt><dd><p> | |
21 | Specifies the height of the texture subimage. | |
22 | </p></dd><dt><span class="term"><em class="parameter"><code>depth</code></em></span></dt><dd><p> | |
23 | Specifies the depth of the texture subimage. | |
24 | </p></dd><dt><span class="term"><em class="parameter"><code>format</code></em></span></dt><dd><p> | |
25 | Specifies the format of the pixel data. | |
26 | The following symbolic values are accepted: | |
27 | <code class="constant">GL_RED</code>, | |
28 | <code class="constant">GL_RG</code>, | |
29 | <code class="constant">GL_RGB</code>, | |
30 | <code class="constant">GL_BGR</code>, | |
31 | <code class="constant">GL_RGBA</code>, and | |
32 | <code class="constant">GL_BGRA</code>. | |
33 | </p></dd><dt><span class="term"><em class="parameter"><code>type</code></em></span></dt><dd><p> | |
34 | Specifies the data type of the pixel data. | |
35 | The following symbolic values are accepted: | |
36 | <code class="constant">GL_UNSIGNED_BYTE</code>, | |
37 | <code class="constant">GL_BYTE</code>, | |
38 | <code class="constant">GL_UNSIGNED_SHORT</code>, | |
39 | <code class="constant">GL_SHORT</code>, | |
40 | <code class="constant">GL_UNSIGNED_INT</code>, | |
41 | <code class="constant">GL_INT</code>, | |
42 | <code class="constant">GL_FLOAT</code>, | |
43 | <code class="constant">GL_UNSIGNED_BYTE_3_3_2</code>, | |
44 | <code class="constant">GL_UNSIGNED_BYTE_2_3_3_REV</code>, | |
45 | <code class="constant">GL_UNSIGNED_SHORT_5_6_5</code>, | |
46 | <code class="constant">GL_UNSIGNED_SHORT_5_6_5_REV</code>, | |
47 | <code class="constant">GL_UNSIGNED_SHORT_4_4_4_4</code>, | |
48 | <code class="constant">GL_UNSIGNED_SHORT_4_4_4_4_REV</code>, | |
49 | <code class="constant">GL_UNSIGNED_SHORT_5_5_5_1</code>, | |
50 | <code class="constant">GL_UNSIGNED_SHORT_1_5_5_5_REV</code>, | |
51 | <code class="constant">GL_UNSIGNED_INT_8_8_8_8</code>, | |
52 | <code class="constant">GL_UNSIGNED_INT_8_8_8_8_REV</code>, | |
53 | <code class="constant">GL_UNSIGNED_INT_10_10_10_2</code>, and | |
54 | <code class="constant">GL_UNSIGNED_INT_2_10_10_10_REV</code>. | |
55 | </p></dd><dt><span class="term"><em class="parameter"><code>data</code></em></span></dt><dd><p> | |
56 | Specifies a pointer to the image data in memory. | |
57 | </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> | |
58 | Texturing maps a portion of a specified texture image | |
59 | onto each graphical primitive for which texturing is enabled. | |
60 | </p><p> | |
61 | <code class="function">glTexSubImage3D</code> redefines a contiguous subregion of an existing three-dimensional | |
62 | or two-dimensioanl array texture image. | |
63 | The texels referenced by <em class="parameter"><code>data</code></em> replace the portion of the | |
64 | existing texture array with x indices <em class="parameter"><code>xoffset</code></em> and | |
65 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
66 | ||
67 | <mml:mrow> | |
68 | <mml:mi mathvariant="italic">xoffset</mml:mi> | |
69 | <mml:mo>+</mml:mo> | |
70 | <mml:mi mathvariant="italic">width</mml:mi> | |
71 | <mml:mo>-</mml:mo> | |
72 | <mml:mn>1</mml:mn> | |
73 | </mml:mrow> | |
74 | </mml:math>, | |
75 | inclusive, | |
76 | y indices <em class="parameter"><code>yoffset</code></em> and | |
77 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
78 | ||
79 | <mml:mrow> | |
80 | <mml:mi mathvariant="italic">yoffset</mml:mi> | |
81 | <mml:mo>+</mml:mo> | |
82 | <mml:mi mathvariant="italic">height</mml:mi> | |
83 | <mml:mo>-</mml:mo> | |
84 | <mml:mn>1</mml:mn> | |
85 | </mml:mrow> | |
86 | </mml:math>, | |
87 | inclusive, | |
88 | and z indices <em class="parameter"><code>zoffset</code></em> and | |
89 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
90 | ||
91 | <mml:mrow> | |
92 | <mml:mi mathvariant="italic">zoffset</mml:mi> | |
93 | <mml:mo>+</mml:mo> | |
94 | <mml:mi mathvariant="italic">depth</mml:mi> | |
95 | <mml:mo>-</mml:mo> | |
96 | <mml:mn>1</mml:mn> | |
97 | </mml:mrow> | |
98 | </mml:math>, | |
99 | inclusive. | |
100 | For three-dimensional textures, the z index refers to the third | |
101 | dimension. For two-dimensional array textures, the z index refers to | |
102 | the slice index. | |
103 | This region may not include any texels outside the range of the | |
104 | texture array as it was originally specified. | |
105 | It is not an error to specify a subtexture with zero width, height, or | |
106 | depth but such a specification has no effect. | |
107 | </p><p> | |
108 | If a non-zero named buffer object is bound to the <code class="constant">GL_PIXEL_UNPACK_BUFFER</code> target | |
109 | (see <a href="glBindBuffer.xml"><span class="citerefentry"><span class="refentrytitle">glBindBuffer</span></span></a>) while a texture image is | |
110 | specified, <em class="parameter"><code>data</code></em> is treated as a byte offset into the buffer object's data store. | |
111 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p> | |
112 | The <a href="glPixelStore.xml"><span class="citerefentry"><span class="refentrytitle">glPixelStore</span></span></a> modes affect texture images. | |
113 | </p><p> | |
114 | <code class="function">glTexSubImage3D</code> specifies a three-dimensional or two-dimenaional array subtexture for the current texture unit, | |
115 | specified with <a href="glActiveTexture.xml"><span class="citerefentry"><span class="refentrytitle">glActiveTexture</span></span></a>. | |
116 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p> | |
117 | <code class="constant">GL_INVALID_ENUM</code> is generated if /<em class="parameter"><code>target</code></em> is not <code class="constant">GL_TEXTURE_3D</code> or <code class="constant">GL_TEXTURE_2D_ARRAY</code>. | |
118 | </p><p> | |
119 | <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>format</code></em> is not an accepted | |
120 | format constant. | |
121 | </p><p> | |
122 | <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>type</code></em> is not a type constant. | |
123 | </p><p> | |
124 | <code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>level</code></em> is less than 0. | |
125 | </p><p> | |
126 | <code class="constant">GL_INVALID_VALUE</code> may be generated if <em class="parameter"><code>level</code></em> is greater | |
127 | than | |
128 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
129 | ||
130 | <mml:msub><mml:mi mathvariant="italic">log</mml:mi> | |
131 | <mml:mn>2</mml:mn> | |
132 | </mml:msub> | |
133 | </mml:math> | |
134 | <span class="emphasis"><em>max</em></span>, | |
135 | where <span class="emphasis"><em>max</em></span> is the returned value of <code class="constant">GL_MAX_TEXTURE_SIZE</code>. | |
136 | </p><p> | |
137 | <code class="constant">GL_INVALID_VALUE</code> is generated if | |
138 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
139 | ||
140 | <mml:mrow> | |
141 | <mml:mi mathvariant="italic">xoffset</mml:mi> | |
142 | <mml:mo><</mml:mo> | |
143 | <mml:mrow> | |
144 | <mml:mo>-</mml:mo> | |
145 | <mml:mi mathvariant="italic">b</mml:mi> | |
146 | </mml:mrow> | |
147 | </mml:mrow> | |
148 | </mml:math>, | |
149 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
150 | ||
151 | <mml:mrow> | |
152 | <mml:mfenced open="(" close=")"> | |
153 | <mml:mrow> | |
154 | <mml:mi mathvariant="italic">xoffset</mml:mi> | |
155 | <mml:mo>+</mml:mo> | |
156 | <mml:mi mathvariant="italic">width</mml:mi> | |
157 | </mml:mrow> | |
158 | </mml:mfenced> | |
159 | <mml:mo>></mml:mo> | |
160 | <mml:mfenced open="(" close=")"> | |
161 | <mml:mrow> | |
162 | <mml:mi mathvariant="italic">w</mml:mi> | |
163 | <mml:mo>-</mml:mo> | |
164 | <mml:mi mathvariant="italic">b</mml:mi> | |
165 | </mml:mrow> | |
166 | </mml:mfenced> | |
167 | </mml:mrow> | |
168 | </mml:math>, | |
169 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
170 | ||
171 | <mml:mrow> | |
172 | <mml:mi mathvariant="italic">yoffset</mml:mi> | |
173 | <mml:mo><</mml:mo> | |
174 | <mml:mrow> | |
175 | <mml:mo>-</mml:mo> | |
176 | <mml:mi mathvariant="italic">b</mml:mi> | |
177 | </mml:mrow> | |
178 | </mml:mrow> | |
179 | </mml:math>, | |
180 | or | |
181 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
182 | ||
183 | <mml:mrow> | |
184 | <mml:mfenced open="(" close=")"> | |
185 | <mml:mrow> | |
186 | <mml:mi mathvariant="italic">yoffset</mml:mi> | |
187 | <mml:mo>+</mml:mo> | |
188 | <mml:mi mathvariant="italic">height</mml:mi> | |
189 | </mml:mrow> | |
190 | </mml:mfenced> | |
191 | <mml:mo>></mml:mo> | |
192 | <mml:mfenced open="(" close=")"> | |
193 | <mml:mrow> | |
194 | <mml:mi mathvariant="italic">h</mml:mi> | |
195 | <mml:mo>-</mml:mo> | |
196 | <mml:mi mathvariant="italic">b</mml:mi> | |
197 | </mml:mrow> | |
198 | </mml:mfenced> | |
199 | </mml:mrow> | |
200 | </mml:math>, | |
201 | or | |
202 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
203 | ||
204 | <mml:mrow> | |
205 | <mml:mi mathvariant="italic">zoffset</mml:mi> | |
206 | <mml:mo><</mml:mo> | |
207 | <mml:mrow> | |
208 | <mml:mo>-</mml:mo> | |
209 | <mml:mi mathvariant="italic">b</mml:mi> | |
210 | </mml:mrow> | |
211 | </mml:mrow> | |
212 | </mml:math>, | |
213 | or | |
214 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
215 | ||
216 | <mml:mrow> | |
217 | <mml:mfenced open="(" close=")"> | |
218 | <mml:mrow> | |
219 | <mml:mi mathvariant="italic">zoffset</mml:mi> | |
220 | <mml:mo>+</mml:mo> | |
221 | <mml:mi mathvariant="italic">depth</mml:mi> | |
222 | </mml:mrow> | |
223 | </mml:mfenced> | |
224 | <mml:mo>></mml:mo> | |
225 | <mml:mfenced open="(" close=")"> | |
226 | <mml:mrow> | |
227 | <mml:mi mathvariant="italic">d</mml:mi> | |
228 | <mml:mo>-</mml:mo> | |
229 | <mml:mi mathvariant="italic">b</mml:mi> | |
230 | </mml:mrow> | |
231 | </mml:mfenced> | |
232 | </mml:mrow> | |
233 | </mml:math>, | |
234 | where | |
235 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">w</mml:mi></mml:math> | |
236 | is the <code class="constant">GL_TEXTURE_WIDTH</code>, | |
237 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">h</mml:mi></mml:math> | |
238 | is the <code class="constant">GL_TEXTURE_HEIGHT</code>, | |
239 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">d</mml:mi></mml:math> | |
240 | is the <code class="constant">GL_TEXTURE_DEPTH</code> | |
241 | and | |
242 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">b</mml:mi></mml:math> | |
243 | is the border width of the texture image being modified. | |
244 | Note that | |
245 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">w</mml:mi></mml:math>, | |
246 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">h</mml:mi></mml:math>, | |
247 | and | |
248 | <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">d</mml:mi></mml:math> | |
249 | include twice the border width. | |
250 | </p><p> | |
251 | <code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>width</code></em>, <em class="parameter"><code>height</code></em>, or <em class="parameter"><code>depth</code></em> | |
252 | is less than 0. | |
253 | </p><p> | |
254 | <code class="constant">GL_INVALID_OPERATION</code> is generated if the texture array has not | |
255 | been defined by a previous <a href="glTexImage3D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage3D</span></span></a> operation. | |
256 | </p><p> | |
257 | <code class="constant">GL_INVALID_OPERATION</code> is generated if <em class="parameter"><code>type</code></em> is one of | |
258 | <code class="constant">GL_UNSIGNED_BYTE_3_3_2</code>, | |
259 | <code class="constant">GL_UNSIGNED_BYTE_2_3_3_REV</code>, | |
260 | <code class="constant">GL_UNSIGNED_SHORT_5_6_5</code>, or | |
261 | <code class="constant">GL_UNSIGNED_SHORT_5_6_5_REV</code> | |
262 | and <em class="parameter"><code>format</code></em> is not <code class="constant">GL_RGB</code>. | |
263 | </p><p> | |
264 | <code class="constant">GL_INVALID_OPERATION</code> is generated if <em class="parameter"><code>type</code></em> is one of | |
265 | <code class="constant">GL_UNSIGNED_SHORT_4_4_4_4</code>, | |
266 | <code class="constant">GL_UNSIGNED_SHORT_4_4_4_4_REV</code>, | |
267 | <code class="constant">GL_UNSIGNED_SHORT_5_5_5_1</code>, | |
268 | <code class="constant">GL_UNSIGNED_SHORT_1_5_5_5_REV</code>, | |
269 | <code class="constant">GL_UNSIGNED_INT_8_8_8_8</code>, | |
270 | <code class="constant">GL_UNSIGNED_INT_8_8_8_8_REV</code>, | |
271 | <code class="constant">GL_UNSIGNED_INT_10_10_10_2</code>, or | |
272 | <code class="constant">GL_UNSIGNED_INT_2_10_10_10_REV</code> | |
273 | and <em class="parameter"><code>format</code></em> is neither <code class="constant">GL_RGBA</code> nor <code class="constant">GL_BGRA</code>. | |
274 | </p><p> | |
275 | <code class="constant">GL_INVALID_OPERATION</code> is generated if a non-zero buffer object name is bound to the | |
276 | <code class="constant">GL_PIXEL_UNPACK_BUFFER</code> target and the buffer object's data store is currently mapped. | |
277 | </p><p> | |
278 | <code class="constant">GL_INVALID_OPERATION</code> is generated if a non-zero buffer object name is bound to the | |
279 | <code class="constant">GL_PIXEL_UNPACK_BUFFER</code> target and the data would be unpacked from the buffer | |
280 | object such that the memory reads required would exceed the data store size. | |
281 | </p><p> | |
282 | <code class="constant">GL_INVALID_OPERATION</code> is generated if a non-zero buffer object name is bound to the | |
283 | <code class="constant">GL_PIXEL_UNPACK_BUFFER</code> target and <em class="parameter"><code>data</code></em> is not evenly divisible | |
284 | into the number of bytes needed to store in memory a datum indicated by <em class="parameter"><code>type</code></em>. | |
285 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p> | |
286 | <a href="glGetTexImage.xml"><span class="citerefentry"><span class="refentrytitle">glGetTexImage</span></span></a> | |
287 | </p><p> | |
288 | <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_PIXEL_UNPACK_BUFFER_BINDING</code> | |
289 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> | |
290 | <a href="glActiveTexture.xml"><span class="citerefentry"><span class="refentrytitle">glActiveTexture</span></span></a>, | |
291 | <a href="glCopyTexImage1D.xml"><span class="citerefentry"><span class="refentrytitle">glCopyTexImage1D</span></span></a>, | |
292 | <a href="glCopyTexImage2D.xml"><span class="citerefentry"><span class="refentrytitle">glCopyTexImage2D</span></span></a>, | |
293 | <a href="glCopyTexSubImage1D.xml"><span class="citerefentry"><span class="refentrytitle">glCopyTexSubImage1D</span></span></a>, | |
294 | <a href="glCopyTexSubImage2D.xml"><span class="citerefentry"><span class="refentrytitle">glCopyTexSubImage2D</span></span></a>, | |
295 | <a href="glCopyTexSubImage3D.xml"><span class="citerefentry"><span class="refentrytitle">glCopyTexSubImage3D</span></span></a>, | |
296 | <a href="glPixelStore.xml"><span class="citerefentry"><span class="refentrytitle">glPixelStore</span></span></a>, | |
297 | <a href="glTexImage1D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage1D</span></span></a>, | |
298 | <a href="glTexImage2D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>, | |
299 | <a href="glTexImage3D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage3D</span></span></a>, | |
300 | <a href="glTexSubImage1D.xml"><span class="citerefentry"><span class="refentrytitle">glTexSubImage1D</span></span></a>, | |
301 | <a href="glTexSubImage2D.xml"><span class="citerefentry"><span class="refentrytitle">glTexSubImage2D</span></span></a>, | |
302 | <a href="glTexParameter.xml"><span class="citerefentry"><span class="refentrytitle">glTexParameter</span></span></a> | |
303 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> | |
304 | Copyright <span class="trademark"></span>© 1991-2006 | |
305 | Silicon Graphics, Inc. This document is licensed under the SGI | |
306 | Free Software B License. For details, see | |
307 | <a href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>. | |
308 | </p></div></div></body></html> |