File: glGetTexLevelParameter.xhtml

package info (click to toggle)
khronos-opengl-man4 1.0~svn27841-1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 24,888 kB
  • ctags: 377
  • sloc: xml: 188,408; makefile: 1,153; python: 736; sh: 49; php: 7; sed: 2
file content (596 lines) | stat: -rw-r--r-- 32,785 bytes parent folder | download
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
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>glGetTexLevelParameter - OpenGL 4 Reference Pages</title>
    <link rel="stylesheet" type="text/css" href="opengl-man.css"/>
    <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"/>
    <script type="text/x-mathjax-config">
            MathJax.Hub.Config({
                MathML: {
                    extensions: ["content-mathml.js"]
                },
                tex2jax: {
                    inlineMath: [['$','$'], ['\\(','\\)']]
                }
            });
        </script>
    <script type="text/javascript" src="https://c328740.ssl.cf1.rackcdn.com/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"/>
  </head>
  <body>
    <header/>
    <div class="refentry" id="glGetTexLevelParameter">
      <div class="titlepage"/>
      <div class="refnamediv">
        <h2>Name</h2>
        <p>glGetTexLevelParameter — return texture parameter values for a specific level of
    detail</p>
      </div>
      <div class="refsynopsisdiv">
        <h2>C Specification</h2>
        <div class="funcsynopsis">
          <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
            <tr>
              <td>
                <code class="funcdef">void <strong class="fsfunc">glGetTexLevelParameterfv</strong>(</code>
              </td>
              <td>GLenum <var class="pdparam">target</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLint <var class="pdparam">level</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLenum <var class="pdparam">pname</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLfloat * <var class="pdparam">params</var><code>)</code>;</td>
            </tr>
          </table>
          <div class="funcprototype-spacer"> </div>
          <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
            <tr>
              <td>
                <code class="funcdef">void <strong class="fsfunc">glGetTexLevelParameteriv</strong>(</code>
              </td>
              <td>GLenum <var class="pdparam">target</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLint <var class="pdparam">level</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLenum <var class="pdparam">pname</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLint * <var class="pdparam">params</var><code>)</code>;</td>
            </tr>
          </table>
          <div class="funcprototype-spacer"> </div>
          <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
            <tr>
              <td>
                <code class="funcdef">void <strong class="fsfunc">glGetTextureLevelParameterfv</strong>(</code>
              </td>
              <td>GLuint <var class="pdparam">texture</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLint <var class="pdparam">level</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLenum <var class="pdparam">pname</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLfloat *<var class="pdparam">params</var><code>)</code>;</td>
            </tr>
          </table>
          <div class="funcprototype-spacer"> </div>
          <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
            <tr>
              <td>
                <code class="funcdef">void <strong class="fsfunc">glGetTextureLevelParameteriv</strong>(</code>
              </td>
              <td>GLuint <var class="pdparam">texture</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLint <var class="pdparam">level</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLenum <var class="pdparam">pname</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>GLint *<var class="pdparam">params</var><code>)</code>;</td>
            </tr>
          </table>
          <div class="funcprototype-spacer"> </div>
        </div>
      </div>
      <div class="refsect1" id="parameters">
        <h2>Parameters</h2>
        <div class="variablelist">
          <dl class="variablelist">
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>target</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>Specifies the target to which the texture is bound for
          <code class="function">glGetTexLevelParameterfv</code> and
          <code class="function">glGetTexLevelParameteriv</code> functions. Must be one
          of the following values: <code class="constant">GL_TEXTURE_1D</code>,
          <code class="constant">GL_TEXTURE_2D</code>,
          <code class="constant">GL_TEXTURE_3D</code>,
          <code class="constant">GL_TEXTURE_1D_ARRAY</code>,
          <code class="constant">GL_TEXTURE_2D_ARRAY</code>,
          <code class="constant">GL_TEXTURE_RECTANGLE</code>,
          <code class="constant">GL_TEXTURE_2D_MULTISAMPLE</code>,
          <code class="constant">GL_TEXTURE_2D_MULTISAMPLE_ARRAY</code>,
          <code class="constant">GL_TEXTURE_CUBE_MAP_POSITIVE_X</code>,
          <code class="constant">GL_TEXTURE_CUBE_MAP_NEGATIVE_X</code>,
          <code class="constant">GL_TEXTURE_CUBE_MAP_POSITIVE_Y</code>,
          <code class="constant">GL_TEXTURE_CUBE_MAP_NEGATIVE_Y</code>,
          <code class="constant">GL_TEXTURE_CUBE_MAP_POSITIVE_Z</code>,
          <code class="constant">GL_TEXTURE_CUBE_MAP_NEGATIVE_Z</code>,
          <code class="constant">GL_PROXY_TEXTURE_1D</code>,
          <code class="constant">GL_PROXY_TEXTURE_2D</code>,
          <code class="constant">GL_PROXY_TEXTURE_3D</code>,
          <code class="constant">GL_PROXY_TEXTURE_1D_ARRAY</code>,
          <code class="constant">GL_PROXY_TEXTURE_2D_ARRAY</code>,
          <code class="constant">GL_PROXY_TEXTURE_RECTANGLE</code>,
          <code class="constant">GL_PROXY_TEXTURE_2D_MULTISAMPLE</code>,
          <code class="constant">GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY</code>,
          <code class="constant">GL_PROXY_TEXTURE_CUBE_MAP</code>, or
          <code class="constant">GL_TEXTURE_BUFFER</code>.</p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>texture</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>Specifies the texture object name for
          <code class="function">glGetTextureLevelParameterfv</code> and
          <code class="function">glGetTextureLevelParameteriv</code> functions.</p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>level</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>
                    Specifies the level-of-detail number of the desired image.
                    Level 0 is the base image level.
                    Level
                    <math overflow="scroll"><mi mathvariant="italic">n</mi></math>
                    is the
                    <math overflow="scroll"><mi mathvariant="italic">n</mi></math>th
                    mipmap reduction image.
                </p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>pname</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>Specifies the symbolic name of a texture parameter.
          <code class="constant">GL_TEXTURE_WIDTH</code>,
          <code class="constant">GL_TEXTURE_HEIGHT</code>,
          <code class="constant">GL_TEXTURE_DEPTH</code>,
          <code class="constant">GL_TEXTURE_INTERNAL_FORMAT</code>,
          <code class="constant">GL_TEXTURE_RED_SIZE</code>,
          <code class="constant">GL_TEXTURE_GREEN_SIZE</code>,
          <code class="constant">GL_TEXTURE_BLUE_SIZE</code>,
          <code class="constant">GL_TEXTURE_ALPHA_SIZE</code>,
          <code class="constant">GL_TEXTURE_DEPTH_SIZE</code>,
          <code class="constant">GL_TEXTURE_COMPRESSED</code>,
          <code class="constant">GL_TEXTURE_COMPRESSED_IMAGE_SIZE</code>, and
          <code class="constant">GL_TEXTURE_BUFFER_OFFSET</code> are accepted.</p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>params</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>Returns the requested data.</p>
            </dd>
          </dl>
        </div>
      </div>
      <div class="refsect1" id="description">
        <h2>Description</h2>
        <p><code class="function">glGetTexLevelParameterfv</code>,
    <code class="function">glGetTexLevelParameteriv</code>,
    <code class="function">glGetTextureLevelParameterfv</code> and
    <code class="function">glGetTextureLevelParameteriv</code> return in
    <em class="parameter"><code>params</code></em> texture parameter values for a specific
    level-of-detail value, specified as <em class="parameter"><code>level</code></em>. For the
    first two functions, <em class="parameter"><code>target</code></em> defines the target
    texture, either <code class="constant">GL_TEXTURE_1D</code>,
    <code class="constant">GL_TEXTURE_2D</code>, <code class="constant">GL_TEXTURE_3D</code>,
    <code class="constant">GL_PROXY_TEXTURE_1D</code>,
    <code class="constant">GL_PROXY_TEXTURE_2D</code>,
    <code class="constant">GL_PROXY_TEXTURE_3D</code>,
    <code class="constant">GL_TEXTURE_CUBE_MAP_POSITIVE_X</code>,
    <code class="constant">GL_TEXTURE_CUBE_MAP_NEGATIVE_X</code>,
    <code class="constant">GL_TEXTURE_CUBE_MAP_POSITIVE_Y</code>,
    <code class="constant">GL_TEXTURE_CUBE_MAP_NEGATIVE_Y</code>,
    <code class="constant">GL_TEXTURE_CUBE_MAP_POSITIVE_Z</code>,
    <code class="constant">GL_TEXTURE_CUBE_MAP_NEGATIVE_Z</code>, or
    <code class="constant">GL_PROXY_TEXTURE_CUBE_MAP</code>. The remaining two take a
    <em class="parameter"><code>texture</code></em> argument which specifies the name of the
    texture object.</p>
        <p><code class="constant">GL_MAX_TEXTURE_SIZE</code>, and
    <code class="constant">GL_MAX_3D_TEXTURE_SIZE</code> are not really descriptive
    enough. It has to report the largest square texture image that can be
    accommodated with mipmaps but a long skinny texture, or a texture without
    mipmaps may easily fit in texture memory. The proxy targets allow the user
    to more accurately query whether the GL can accommodate a texture of a
    given configuration. If the texture cannot be accommodated, the texture
    state variables, which may be queried with
    <code class="function">glGetTexLevelParameter</code> and
    <code class="function">glGetTextureLevelParameter</code>, are set to 0. If the
    texture can be accommodated, the texture state values will be set as they
    would be set for a non-proxy target.</p>
        <p><em class="parameter"><code>pname</code></em> specifies the texture parameter whose
    value or values will be returned.</p>
        <p>The accepted parameter names are as follows:</p>
        <div class="variablelist">
          <dl class="variablelist">
            <dt>
              <span class="term">
                <code class="constant">GL_TEXTURE_WIDTH</code>
              </span>
            </dt>
            <dd>
              <p><em class="parameter"><code>params</code></em> returns a single value, the
          width of the texture image. The initial value is 0.</p>
            </dd>
            <dt>
              <span class="term">
                <code class="constant">GL_TEXTURE_HEIGHT</code>
              </span>
            </dt>
            <dd>
              <p><em class="parameter"><code>params</code></em> returns a single value, the
          height of the texture image. The initial value is 0.</p>
            </dd>
            <dt>
              <span class="term">
                <code class="constant">GL_TEXTURE_DEPTH</code>
              </span>
            </dt>
            <dd>
              <p><em class="parameter"><code>params</code></em> returns a single value, the
          depth of the texture image. The initial value is 0.</p>
            </dd>
            <dt>
              <span class="term">
                <code class="constant">GL_TEXTURE_INTERNAL_FORMAT</code>
              </span>
            </dt>
            <dd>
              <p><em class="parameter"><code>params</code></em> returns a single value, the
          internal format of the texture image.</p>
            </dd>
            <dt>
              <span class="term"><code class="constant">GL_TEXTURE_RED_TYPE</code>,
        <code class="constant">GL_TEXTURE_GREEN_TYPE</code>,
        <code class="constant">GL_TEXTURE_BLUE_TYPE</code>,
        <code class="constant">GL_TEXTURE_ALPHA_TYPE</code>,
        <code class="constant">GL_TEXTURE_DEPTH_TYPE</code></span>
            </dt>
            <dd>
              <p>The data type used to store the component. The types
          <code class="constant">GL_NONE</code>,
          <code class="constant">GL_SIGNED_NORMALIZED</code>,
          <code class="constant">GL_UNSIGNED_NORMALIZED</code>,
          <code class="constant">GL_FLOAT</code>, <code class="constant">GL_INT</code>, and
          <code class="constant">GL_UNSIGNED_INT</code> may be returned to indicate
          signed normalized fixed-point, unsigned normalized fixed-point,
          floating-point, integer unnormalized, and unsigned integer
          unnormalized components, respectively.</p>
            </dd>
            <dt>
              <span class="term"><code class="constant">GL_TEXTURE_RED_SIZE</code>,
        <code class="constant">GL_TEXTURE_GREEN_SIZE</code>,
        <code class="constant">GL_TEXTURE_BLUE_SIZE</code>,
        <code class="constant">GL_TEXTURE_ALPHA_SIZE</code>,
        <code class="constant">GL_TEXTURE_DEPTH_SIZE</code></span>
            </dt>
            <dd>
              <p/>
              <p>The internal storage resolution of an individual component.
          The resolution chosen by the GL will be a close match for the
          resolution requested by the user with the component argument of
          <a class="citerefentry" href="glTexImage1D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexImage1D</span></span></a>, <a class="citerefentry" href="glTexImage2D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>, <a class="citerefentry" href="glTexImage3D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexImage3D</span></span></a>, <a class="citerefentry" href="glCopyTexImage1D.xhtml"><span class="citerefentry"><span class="refentrytitle">glCopyTexImage1D</span></span></a>, and <a class="citerefentry" href="glCopyTexImage2D.xhtml"><span class="citerefentry"><span class="refentrytitle">glCopyTexImage2D</span></span></a>. The initial value is 0.</p>
            </dd>
            <dt>
              <span class="term">
                <code class="constant">GL_TEXTURE_COMPRESSED</code>
              </span>
            </dt>
            <dd>
              <p/>
              <p><em class="parameter"><code>params</code></em> returns a single boolean value
          indicating if the texture image is stored in a compressed internal
          format. The initiali value is <code class="constant">GL_FALSE</code>.</p>
            </dd>
            <dt>
              <span class="term">
                <code class="constant">GL_TEXTURE_COMPRESSED_IMAGE_SIZE</code>
              </span>
            </dt>
            <dd>
              <p/>
              <p><em class="parameter"><code>params</code></em> returns a single integer value,
          the number of unsigned bytes of the compressed texture image that
          would be returned from <a class="citerefentry" href="glGetCompressedTexImage.xhtml"><span class="citerefentry"><span class="refentrytitle">glGetCompressedTexImage</span></span></a>.</p>
            </dd>
            <dt>
              <span class="term">
                <code class="constant">GL_TEXTURE_BUFFER_OFFSET</code>
              </span>
            </dt>
            <dd>
              <p/>
              <p><em class="parameter"><code>params</code></em> returns a single integer value,
          the offset into the data store of the buffer bound to a buffer
          texture. <a class="citerefentry" href="glTexBufferRange.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexBufferRange</span></span></a>.</p>
            </dd>
            <dt>
              <span class="term">
                <code class="constant">GL_TEXTURE_BUFFER_SIZE</code>
              </span>
            </dt>
            <dd>
              <p/>
              <p><em class="parameter"><code>params</code></em> returns a single integer value,
          the size of the range of a data store of the buffer bound to a
          buffer texture. <a class="citerefentry" href="glTexBufferRange.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexBufferRange</span></span></a>.</p>
            </dd>
          </dl>
        </div>
      </div>
      <div class="refsect1" id="notes">
        <h2>Notes</h2>
        <p>If an error is generated, no change is made to the contents of
    <em class="parameter"><code>params</code></em>.</p>
        <p><code class="function">glGetTexLevelParameter</code> returns the texture
    level parameters for the active texture unit.</p>
        <p><code class="constant">GL_TEXTURE_BUFFER_OFFSET</code> and
    <code class="constant">GL_TEXTURE_BUFFER_SIZE</code> are available only if the GL
    version is 4.3 or greater.</p>
      </div>
      <div class="refsect1" id="errors">
        <h2>Errors</h2>
        <p><code class="constant">GL_INVALID_OPERATION</code> is generated by
    <code class="function">glGetTextureLevelParameterfv</code> and
    <code class="function">glGetTextureLevelParameteriv</code> functions if
    <em class="parameter"><code>texture</code></em> is not the name of an existing texture
    object.</p>
        <p><code class="constant">GL_INVALID_ENUM</code> is generated by
    <code class="function">glGetTexLevelParameterfv</code> and
    <code class="function">glGetTexLevelParameteriv</code> functions if
    <em class="parameter"><code>target</code></em> or <em class="parameter"><code>pname</code></em> is not an
    accepted value.</p>
        <p><code class="constant">GL_INVALID_VALUE</code> is generated if
    <em class="parameter"><code>level</code></em> is less than 0.</p>
        <p><code class="constant">GL_INVALID_VALUE</code> may be generated if
    <em class="parameter"><code>level</code></em> is greater than <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll">
          

          <mml:msub>
            <mml:mi mathvariant="italic">log</mml:mi>

            <mml:mn>2</mml:mn>
          </mml:msub>
        </mml:math> <span class="emphasis"><em>max</em></span>, where
    <span class="emphasis"><em>max</em></span> is the returned value of
    <code class="constant">GL_MAX_TEXTURE_SIZE</code>.</p>
        <p><code class="constant">GL_INVALID_VALUE</code> is generated if
    <em class="parameter"><code>target</code></em> is <code class="constant">GL_TEXTURE_BUFFER</code>
    and <em class="parameter"><code>level</code></em> is not zero.</p>
        <p><code class="constant">GL_INVALID_OPERATION</code> is generated if
    <code class="constant">GL_TEXTURE_COMPRESSED_IMAGE_SIZE</code> is queried on
    texture images with an uncompressed internal format or on proxy
    targets.</p>
      </div>
      <div class="refsect1" id="versions">
        <h2>Version Support</h2>
        <div class="informaltable">
          <table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; ">
            <colgroup>
              <col style="text-align: left; "/>
              <col style="text-align: center; " class="firstvers"/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; " class="lastvers"/>
            </colgroup>
            <thead>
              <tr>
                <th style="text-align: left; border-right: 2px solid ; ">
                 
            </th>
                <th style="text-align: center; border-bottom: 2px solid ; " colspan="12">
                <span class="bold"><strong>OpenGL Version</strong></span>
            </th>
              </tr>
              <tr>
                <th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>Function / Feature Name</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>2.0</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>2.1</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.0</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.1</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.2</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.3</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>4.0</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>4.1</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>4.2</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>4.3</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>4.4</strong></span>
            </th>
                <th style="text-align: center; border-bottom: 2px solid ; ">
                <span class="bold"><strong>4.5</strong></span>
            </th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
                  <code class="function">glGetTexLevelParameterfv</code>
                </td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-bottom: 2px solid ; ">✔</td>
              </tr>
              <tr>
                <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
                  <code class="function">glGetTexLevelParameteriv</code>
                </td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
                <td style="text-align: center; border-bottom: 2px solid ; ">✔</td>
              </tr>
              <tr>
                <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
                  <code class="function">glGetTextureLevelParameterfv</code>
                </td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
                <td style="text-align: center; border-bottom: 2px solid ; ">✔</td>
              </tr>
              <tr>
                <td style="text-align: left; border-right: 2px solid ; ">
                  <code class="function">glGetTextureLevelParameteriv</code>
                </td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; ">✔</td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
      <div class="refsect1" id="seealso">
        <h2>See Also</h2>
        <p>
            <a class="citerefentry" href="glActiveTexture.xhtml"><span class="citerefentry"><span class="refentrytitle">glActiveTexture</span></span></a>,
            <a class="citerefentry" href="glGetTexParameter.xhtml"><span class="citerefentry"><span class="refentrytitle">glGetTexParameter</span></span></a>,
            <a class="citerefentry" href="glCopyTexImage1D.xhtml"><span class="citerefentry"><span class="refentrytitle">glCopyTexImage1D</span></span></a>,
            <a class="citerefentry" href="glCopyTexImage2D.xhtml"><span class="citerefentry"><span class="refentrytitle">glCopyTexImage2D</span></span></a>,
            <a class="citerefentry" href="glCopyTexSubImage1D.xhtml"><span class="citerefentry"><span class="refentrytitle">glCopyTexSubImage1D</span></span></a>,
            <a class="citerefentry" href="glCopyTexSubImage2D.xhtml"><span class="citerefentry"><span class="refentrytitle">glCopyTexSubImage2D</span></span></a>,
            <a class="citerefentry" href="glCopyTexSubImage3D.xhtml"><span class="citerefentry"><span class="refentrytitle">glCopyTexSubImage3D</span></span></a>,
            <a class="citerefentry" href="glTexImage1D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexImage1D</span></span></a>,
            <a class="citerefentry" href="glTexImage2D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>,
            <a class="citerefentry" href="glTexImage3D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexImage3D</span></span></a>,
            <a class="citerefentry" href="glTexSubImage1D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexSubImage1D</span></span></a>,
            <a class="citerefentry" href="glTexSubImage2D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexSubImage2D</span></span></a>,
            <a class="citerefentry" href="glTexSubImage3D.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexSubImage3D</span></span></a>,
            <a class="citerefentry" href="glTexParameter.xhtml"><span class="citerefentry"><span class="refentrytitle">glTexParameter</span></span></a>
        </p>
      </div>
      <div class="refsect1" id="Copyright">
        <h2>Copyright</h2>
        <p>
            Copyright <span class="trademark"/>© 1991-2006
            Silicon Graphics, Inc. Copyright <span class="trademark"/>© 2010-2014
            Khronos Group. This document is licensed under the SGI
            Free Software B License. For details, see
            <a class="link" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
        </p>
      </div>
    </div>
    <footer/>
  </body>
</html>