/usr/share/gtk-doc/html/cogl-2.0-experimental/cogl-2.0-experimental-The-Texture-Interface.html is in libcogl-doc 1.22.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>The Texture Interface: Cogl 2.0 Reference Manual</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<link rel="home" href="index.html" title="Cogl 2.0 Reference Manual">
<link rel="up" href="cogl-textures.html" title="Textures">
<link rel="prev" href="cogl-2.0-experimental-Bitmap.html" title="Bitmap">
<link rel="next" href="cogl-meta-textures.html" title="Meta Textures">
<meta name="generator" content="GTK-Doc V1.24 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
<a href="#cogl-2.0-experimental-The-Texture-Interface.description" class="shortcut">Description</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="cogl-textures.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="cogl-2.0-experimental-Bitmap.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="cogl-meta-textures.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="cogl-2.0-experimental-The-Texture-Interface"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="cogl-2.0-experimental-The-Texture-Interface.top_of_page"></a>The Texture Interface</span></h2>
<p>The Texture Interface — Functions for creating and manipulating textures</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="cogl-2.0-experimental-The-Texture-Interface.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="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-is-texture" title="cogl_is_texture ()">cogl_is_texture</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#COGL-TEXTURE-ERROR:CAPS" title="COGL_TEXTURE_ERROR">COGL_TEXTURE_ERROR</a></td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-allocate" title="cogl_texture_allocate ()">cogl_texture_allocate</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">unsigned <span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-get-width" title="cogl_texture_get_width ()">cogl_texture_get_width</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">unsigned <span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-get-height" title="cogl_texture_get_height ()">cogl_texture_get_height</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-is-sliced" title="cogl_texture_is_sliced ()">cogl_texture_is_sliced</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-get-data" title="cogl_texture_get_data ()">cogl_texture_get_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-data" title="cogl_texture_set_data ()">cogl_texture_set_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-region" title="cogl_texture_set_region ()">cogl_texture_set_region</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="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-components" title="cogl_texture_set_components ()">cogl_texture_set_components</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTextureComponents" title="enum CoglTextureComponents"><span class="returnvalue">CoglTextureComponents</span></a>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-get-components" title="cogl_texture_get_components ()">cogl_texture_get_components</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="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-premultiplied" title="cogl_texture_set_premultiplied ()">cogl_texture_set_premultiplied</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
</td>
<td class="function_name">
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-get-premultiplied" title="cogl_texture_get_premultiplied ()">cogl_texture_get_premultiplied</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="cogl-2.0-experimental-The-Texture-Interface.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="typedef_keyword">typedef</td>
<td class="function_name"><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture">CoglTexture</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTextureError" title="enum CoglTextureError">CoglTextureError</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTextureType" title="enum CoglTextureType">CoglTextureType</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTextureComponents" title="enum CoglTextureComponents">CoglTextureComponents</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="cogl-2.0-experimental-The-Texture-Interface.description"></a><h2>Description</h2>
<p>Cogl allows creating and manipulating textures using a uniform
API that tries to hide all the various complexities of creating,
loading and manipulating textures.</p>
</div>
<div class="refsect1">
<a name="cogl-2.0-experimental-The-Texture-Interface.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="cogl-is-texture"></a><h3>cogl_is_texture ()</h3>
<pre class="programlisting"><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
cogl_is_texture (<em class="parameter"><code><span class="type">void</span> *object</code></em>);</pre>
<p>Gets whether the given object references a texture object.</p>
<div class="refsect3">
<a name="id-1.2.9.3.6.2.5"></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>object</p></td>
<td class="parameter_description"><p>A <a class="link" href="cogl-2.0-experimental-The-Object-Interface.html#CoglObject" title="CoglObject"><span class="type">CoglObject</span></a> pointer</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.2.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the <em class="parameter"><code>object</code></em>
references a texture, and
<code class="literal">FALSE</code> otherwise</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="COGL-TEXTURE-ERROR:CAPS"></a><h3>COGL_TEXTURE_ERROR</h3>
<pre class="programlisting">#define COGL_TEXTURE_ERROR (cogl_texture_error_quark ())
</pre>
<p><a class="link" href="cogl-2.0-experimental-Exception-handling.html#CoglError" title="CoglError"><span class="type">CoglError</span></a> domain for texture errors.</p>
<p class="since">Since: 1.8</p>
<p class="stability">Stability Level: <acronym title="Unstable interfaces are experimental or transitional. They are typically used to
give outside developers early access to new or rapidly changing technology, or
to provide an interim solution to a problem where a more general solution is
anticipated. No claims are made about either source or binary compatibility from
one minor release to the next.
The Unstable interface level is a warning that these interfaces are subject to
change without warning and should not be used in unbundled products.
Given such caveats, customer impact need not be a factor when considering
incompatible changes to an Unstable interface in a major or minor release.
Nonetheless, when such changes are introduced, the changes should still be
mentioned in the release notes for the affected release.
"><span class="acronym">Unstable</span></acronym></p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-allocate"></a><h3>cogl_texture_allocate ()</h3>
<pre class="programlisting"><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
cogl_texture_allocate (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>,
<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-Exception-handling.html#CoglError" title="CoglError"><span class="type">CoglError</span></a> **error</code></em>);</pre>
<p>Explicitly allocates the storage for the given <em class="parameter"><code>texture</code></em>
which
allows you to be sure that there is enough memory for the
texture and if not then the error can be handled gracefully.</p>
<div class="note">Normally applications don't need to use this api directly
since the texture will be implicitly allocated when data is set on
the texture, or if the texture is attached to a <a class="link" href="cogl-2.0-experimental-Offscreen-Framebuffers.html#CoglOffscreen" title="CoglOffscreen"><span class="type">CoglOffscreen</span></a>
framebuffer and rendered too.</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.4.6"></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>texture</p></td>
<td class="parameter_description"><p>A <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>A <a class="link" href="cogl-2.0-experimental-Exception-handling.html#CoglError" title="CoglError"><span class="type">CoglError</span></a> to return exceptional errors or <code class="literal">NULL</code></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.4.7"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the texture was successfully allocated,
otherwise <code class="literal">FALSE</code> and <em class="parameter"><code>error</code></em>
will be updated if it
wasn't <code class="literal">NULL</code>.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-get-width"></a><h3>cogl_texture_get_width ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">int</span>
cogl_texture_get_width (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>);</pre>
<p>Queries the width of a cogl texture.</p>
<div class="refsect3">
<a name="id-1.2.9.3.6.5.5"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> pointer.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.5.6"></a><h4>Returns</h4>
<p> the width of the GPU side texture in pixels</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-get-height"></a><h3>cogl_texture_get_height ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">int</span>
cogl_texture_get_height (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>);</pre>
<p>Queries the height of a cogl texture.</p>
<div class="refsect3">
<a name="id-1.2.9.3.6.6.5"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> pointer.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.6.6"></a><h4>Returns</h4>
<p> the height of the GPU side texture in pixels</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-is-sliced"></a><h3>cogl_texture_is_sliced ()</h3>
<pre class="programlisting"><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
cogl_texture_is_sliced (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>);</pre>
<p>Queries if a texture is sliced (stored as multiple GPU side tecture
objects).</p>
<div class="refsect3">
<a name="id-1.2.9.3.6.7.5"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> pointer.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.7.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the texture is sliced, <code class="literal">FALSE</code> if the texture
is stored as a single GPU texture</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-get-data"></a><h3>cogl_texture_get_data ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
cogl_texture_get_data (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>,
<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglPixelFormat" title="enum CoglPixelFormat"><span class="type">CoglPixelFormat</span></a> format</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> rowstride</code></em>,
<em class="parameter"><code><span class="type">uint8_t</span> *data</code></em>);</pre>
<p>Copies the pixel data from a cogl texture to system memory.</p>
<div class="note">Don't pass the value of <code class="function">cogl_texture_get_rowstride()</code> as the
<em class="parameter"><code>rowstride</code></em> argument, the rowstride should be the rowstride you
want for the destination <em class="parameter"><code>data</code></em> buffer not the rowstride of the
source texture</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.8.6"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> pointer.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>the <a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglPixelFormat" title="enum CoglPixelFormat"><span class="type">CoglPixelFormat</span></a> to store the texture as.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>rowstride</p></td>
<td class="parameter_description"><p>the rowstride of <em class="parameter"><code>data</code></em>
in bytes or pass 0 to calculate
from the bytes-per-pixel of <em class="parameter"><code>format</code></em>
multiplied by the
<em class="parameter"><code>texture</code></em>
width.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>memory location to write the <em class="parameter"><code>texture</code></em>
's contents, or <code class="literal">NULL</code>
to only query the data size through the return value.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.8.7"></a><h4>Returns</h4>
<p> the size of the texture data in bytes</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-set-data"></a><h3>cogl_texture_set_data ()</h3>
<pre class="programlisting"><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
cogl_texture_set_data (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>,
<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglPixelFormat" title="enum CoglPixelFormat"><span class="type">CoglPixelFormat</span></a> format</code></em>,
<em class="parameter"><code><span class="type">int</span> rowstride</code></em>,
<em class="parameter"><code>const <span class="type">uint8_t</span> *data</code></em>,
<em class="parameter"><code><span class="type">int</span> level</code></em>,
<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-Exception-handling.html#CoglError" title="CoglError"><span class="type">CoglError</span></a> **error</code></em>);</pre>
<p>Sets all the pixels for a given mipmap <em class="parameter"><code>level</code></em>
by copying the pixel
data pointed to by the <em class="parameter"><code>data</code></em>
argument into the given <em class="parameter"><code>texture</code></em>
.</p>
<p><em class="parameter"><code>data</code></em>
should point to the first pixel to copy corresponding
to the top left of the mipmap <em class="parameter"><code>level</code></em>
being set.</p>
<p>If <em class="parameter"><code>rowstride</code></em>
equals 0 then it will be automatically calculated
from the width of the mipmap level and the bytes-per-pixel for the
given <em class="parameter"><code>format</code></em>
.</p>
<p>A mipmap <em class="parameter"><code>level</code></em>
of 0 corresponds to the largest, base image of a
texture and <em class="parameter"><code>level</code></em>
1 is half the width and height of level 0. If
dividing any dimension of the previous level by two results in a
fraction then round the number down (<code class="function">floor()</code>), but clamp to 1
something like this:</p>
<div class="informalexample"><pre class="programlisting">
next_width = MAX (1, floor (prev_width));
</pre></div>
<p></p>
<p>You can determine the number of mipmap levels for a given texture
like this:</p>
<div class="informalexample"><pre class="programlisting">
n_levels = 1 + floor (log2 (max_dimension));
</pre></div>
<p></p>
<p>Where <code class="literal">max_dimension</code> is the larger of <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-get-width" title="cogl_texture_get_width ()"><code class="function">cogl_texture_get_width()</code></a> and
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-get-height" title="cogl_texture_get_height ()"><code class="function">cogl_texture_get_height()</code></a>.</p>
<p>It is an error to pass a <em class="parameter"><code>level</code></em>
number >= the number of levels that
<em class="parameter"><code>texture</code></em>
can have according to the above calculation.</p>
<div class="note">Since the storage for a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> is allocated lazily then
if the given <em class="parameter"><code>texture</code></em> has not previously been allocated then this
api can return <code class="literal">FALSE</code> and throw an exceptional <em class="parameter"><code>error</code></em> if there is
not enough memory to allocate storage for <em class="parameter"><code>texture</code></em>.</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.9.16"></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>format</p></td>
<td class="parameter_description"><p>the <a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglPixelFormat" title="enum CoglPixelFormat"><span class="type">CoglPixelFormat</span></a> used in the source <em class="parameter"><code>data</code></em>
buffer.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>rowstride</p></td>
<td class="parameter_description"><p>rowstride of the source <em class="parameter"><code>data</code></em>
buffer (computed from
the texture width and <em class="parameter"><code>format</code></em>
if it equals 0)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the source data, pointing to the first top-left pixel to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>level</p></td>
<td class="parameter_description"><p>The mipmap level to update (Normally 0 for the largest,
base texture)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>A <a class="link" href="cogl-2.0-experimental-Exception-handling.html#CoglError" title="CoglError"><span class="type">CoglError</span></a> to return exceptional errors</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.9.17"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the data upload was successful, and
<code class="literal">FALSE</code> otherwise</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-set-region"></a><h3>cogl_texture_set_region ()</h3>
<pre class="programlisting"><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
cogl_texture_set_region (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>,
<em class="parameter"><code><span class="type">int</span> src_x</code></em>,
<em class="parameter"><code><span class="type">int</span> src_y</code></em>,
<em class="parameter"><code><span class="type">int</span> dst_x</code></em>,
<em class="parameter"><code><span class="type">int</span> dst_y</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> dst_width</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> dst_height</code></em>,
<em class="parameter"><code><span class="type">int</span> width</code></em>,
<em class="parameter"><code><span class="type">int</span> height</code></em>,
<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglPixelFormat" title="enum CoglPixelFormat"><span class="type">CoglPixelFormat</span></a> format</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> rowstride</code></em>,
<em class="parameter"><code>const <span class="type">uint8_t</span> *data</code></em>);</pre>
<p>Sets the pixels in a rectangular subregion of <em class="parameter"><code>texture</code></em>
from an in-memory
buffer containing pixel data.</p>
<div class="note">The region set can't be larger than the source <em class="parameter"><code>data</code></em>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.10.6"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>src_x</p></td>
<td class="parameter_description"><p>upper left coordinate to use from source data.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>src_y</p></td>
<td class="parameter_description"><p>upper left coordinate to use from source data.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dst_x</p></td>
<td class="parameter_description"><p>upper left destination horizontal coordinate.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dst_y</p></td>
<td class="parameter_description"><p>upper left destination vertical coordinate.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dst_width</p></td>
<td class="parameter_description"><p>width of destination region to write. (Must be less
than or equal to <em class="parameter"><code>width</code></em>
)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dst_height</p></td>
<td class="parameter_description"><p>height of destination region to write. (Must be less
than or equal to <em class="parameter"><code>height</code></em>
)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>width</p></td>
<td class="parameter_description"><p>width of source data buffer.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>height</p></td>
<td class="parameter_description"><p>height of source data buffer.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>the <a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglPixelFormat" title="enum CoglPixelFormat"><span class="type">CoglPixelFormat</span></a> used in the source buffer.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>rowstride</p></td>
<td class="parameter_description"><p>rowstride of source buffer (computed from width if none
specified)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the actual pixel data.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.10.7"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the subregion upload was successful, and
<code class="literal">FALSE</code> otherwise</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-set-components"></a><h3>cogl_texture_set_components ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
cogl_texture_set_components (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>,
<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTextureComponents" title="enum CoglTextureComponents"><span class="type">CoglTextureComponents</span></a> components</code></em>);</pre>
<p>Affects the internal storage format for this texture by specifying
what components will be required for sampling later.</p>
<p>This api affects how data is uploaded to the GPU since unused
components can potentially be discarded from source data.</p>
<p>For textures created by the ‘_with_size’ constructors the default
is <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#COGL-TEXTURE-COMPONENTS-RGBA:CAPS"><code class="literal">COGL_TEXTURE_COMPONENTS_RGBA</code></a>. The other constructors which take
a <a class="link" href="cogl-2.0-experimental-Bitmap.html#CoglBitmap" title="CoglBitmap"><code class="literal">CoglBitmap</code></a> or a data pointer default to the same components as
the pixel format of the data.</p>
<p>Note that the <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#COGL-TEXTURE-COMPONENTS-RG:CAPS"><code class="literal">COGL_TEXTURE_COMPONENTS_RG</code></a> format is not available
on all drivers. The availability can be determined by checking for
the <a class="link" href="cogl-2.0-experimental-The-Top-Level-Context.html#COGL-FEATURE-ID-TEXTURE-RG:CAPS"><code class="literal">COGL_FEATURE_ID_TEXTURE_RG</code></a> feature. If this format is used on
a driver where it is not available then <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#COGL-TEXTURE-ERROR-FORMAT:CAPS"><code class="literal">COGL_TEXTURE_ERROR_FORMAT</code></a>
will be raised when the texture is allocated. Even if the feature
is not available then <a class="link" href="cogl-2.0-experimental-Common-Types.html#COGL-PIXEL-FORMAT-RG-88:CAPS"><code class="literal">COGL_PIXEL_FORMAT_RG_88</code></a> can still be used as
an image format as long as <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#COGL-TEXTURE-COMPONENTS-RG:CAPS"><code class="literal">COGL_TEXTURE_COMPONENTS_RG</code></a> isn't used
as the texture's components.</p>
<div class="refsect3">
<a name="id-1.2.9.3.6.11.8"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> pointer.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: 1.18</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-get-components"></a><h3>cogl_texture_get_components ()</h3>
<pre class="programlisting"><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTextureComponents" title="enum CoglTextureComponents"><span class="returnvalue">CoglTextureComponents</span></a>
cogl_texture_get_components (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>);</pre>
<p>Queries what components the given <em class="parameter"><code>texture</code></em>
stores internally as set
via <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-components" title="cogl_texture_set_components ()"><code class="function">cogl_texture_set_components()</code></a>.</p>
<p>For textures created by the ‘_with_size’ constructors the default
is <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#COGL-TEXTURE-COMPONENTS-RGBA:CAPS"><code class="literal">COGL_TEXTURE_COMPONENTS_RGBA</code></a>. The other constructors which take
a <a class="link" href="cogl-2.0-experimental-Bitmap.html#CoglBitmap" title="CoglBitmap"><code class="literal">CoglBitmap</code></a> or a data pointer default to the same components as
the pixel format of the data.</p>
<div class="refsect3">
<a name="id-1.2.9.3.6.12.6"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> pointer.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: 1.18</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-set-premultiplied"></a><h3>cogl_texture_set_premultiplied ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
cogl_texture_set_premultiplied (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>,
<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="type">CoglBool</span></a> premultiplied</code></em>);</pre>
<p>Affects the internal storage format for this texture by specifying
whether red, green and blue color components should be stored as
pre-multiplied alpha values.</p>
<p>This api affects how data is uploaded to the GPU since Cogl will
convert source data to have premultiplied or unpremultiplied
components according to this state.</p>
<p>For example if you create a texture via
<a class="link" href="cogl-2.0-experimental-2D-textures.html#cogl-texture-2d-new-with-size" title="cogl_texture_2d_new_with_size ()"><code class="function">cogl_texture_2d_new_with_size()</code></a> and then upload data via
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-data" title="cogl_texture_set_data ()"><code class="function">cogl_texture_set_data()</code></a> passing a source format of
<a class="link" href="cogl-2.0-experimental-Common-Types.html#COGL-PIXEL-FORMAT-RGBA-8888:CAPS"><code class="literal">COGL_PIXEL_FORMAT_RGBA_8888</code></a> then Cogl will internally multiply the
red, green and blue components of the source data by the alpha
component, for each pixel so that the internally stored data has
pre-multiplied alpha components. If you instead upload data that
already has pre-multiplied components by passing
<a class="link" href="cogl-2.0-experimental-Common-Types.html#COGL-PIXEL-FORMAT-RGBA-8888-PRE:CAPS"><code class="literal">COGL_PIXEL_FORMAT_RGBA_8888_PRE</code></a> as the source format to
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-data" title="cogl_texture_set_data ()"><code class="function">cogl_texture_set_data()</code></a> then the data can be uploaded without being
converted.</p>
<p>By default the <em class="parameter"><code>premultipled</code></em>
state is <em class="parameter"><code>TRUE</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.9.3.6.13.8"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> pointer.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>premultiplied</p></td>
<td class="parameter_description"><p>Whether any internally stored red, green or blue
components are pre-multiplied by an alpha
component.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: 1.18</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-texture-get-premultiplied"></a><h3>cogl_texture_get_premultiplied ()</h3>
<pre class="programlisting"><a class="link" href="cogl-2.0-experimental-Common-Types.html#CoglBool" title="CoglBool"><span class="returnvalue">CoglBool</span></a>
cogl_texture_get_premultiplied (<em class="parameter"><code><a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> *texture</code></em>);</pre>
<p>Queries the pre-multiplied alpha status for internally stored red,
green and blue components for the given <em class="parameter"><code>texture</code></em>
as set by
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-premultiplied" title="cogl_texture_set_premultiplied ()"><code class="function">cogl_texture_set_premultiplied()</code></a>.</p>
<p>By default the pre-multipled state is <em class="parameter"><code>TRUE</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.9.3.6.14.6"></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>texture</p></td>
<td class="parameter_description"><p>a <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a> pointer.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.3.6.14.7"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if red, green and blue components are
internally stored pre-multiplied by the alpha
value or <code class="literal">FALSE</code> if not.</p>
</div>
<p class="since">Since: 1.18</p>
</div>
</div>
<div class="refsect1">
<a name="cogl-2.0-experimental-The-Texture-Interface.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="CoglTexture"></a><h3>CoglTexture</h3>
<pre class="programlisting">typedef void CoglTexture;
</pre>
</div>
<hr>
<div class="refsect2">
<a name="CoglTextureError"></a><h3>enum CoglTextureError</h3>
<p>Error codes that can be thrown when allocating textures.</p>
<div class="refsect3">
<a name="id-1.2.9.3.7.3.4"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-ERROR-SIZE:CAPS"></a>COGL_TEXTURE_ERROR_SIZE</p></td>
<td class="enum_member_description">
<p>Unsupported size</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-ERROR-FORMAT:CAPS"></a>COGL_TEXTURE_ERROR_FORMAT</p></td>
<td class="enum_member_description">
<p>Unsupported format</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-ERROR-BAD-PARAMETER:CAPS"></a>COGL_TEXTURE_ERROR_BAD_PARAMETER</p></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-ERROR-TYPE:CAPS"></a>COGL_TEXTURE_ERROR_TYPE</p></td>
<td class="enum_member_description">
<p>A primitive texture type that is
unsupported by the driver was used</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: 1.8</p>
<p class="stability">Stability Level: <acronym title="Unstable interfaces are experimental or transitional. They are typically used to
give outside developers early access to new or rapidly changing technology, or
to provide an interim solution to a problem where a more general solution is
anticipated. No claims are made about either source or binary compatibility from
one minor release to the next.
The Unstable interface level is a warning that these interfaces are subject to
change without warning and should not be used in unbundled products.
Given such caveats, customer impact need not be a factor when considering
incompatible changes to an Unstable interface in a major or minor release.
Nonetheless, when such changes are introduced, the changes should still be
mentioned in the release notes for the affected release.
"><span class="acronym">Unstable</span></acronym></p>
</div>
<hr>
<div class="refsect2">
<a name="CoglTextureType"></a><h3>enum CoglTextureType</h3>
<p>Constants representing the underlying hardware texture type of a
<a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a>.</p>
<div class="refsect3">
<a name="id-1.2.9.3.7.4.4"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-TYPE-2D:CAPS"></a>COGL_TEXTURE_TYPE_2D</p></td>
<td class="enum_member_description">
<p>A <a class="link" href="cogl-2.0-experimental-2D-textures.html#CoglTexture2D" title="CoglTexture2D"><span class="type">CoglTexture2D</span></a></p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-TYPE-3D:CAPS"></a>COGL_TEXTURE_TYPE_3D</p></td>
<td class="enum_member_description">
<p>A <a class="link" href="cogl-2.0-experimental-3D-textures.html#CoglTexture3D" title="CoglTexture3D"><span class="type">CoglTexture3D</span></a></p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-TYPE-RECTANGLE:CAPS"></a>COGL_TEXTURE_TYPE_RECTANGLE</p></td>
<td class="enum_member_description">
<p>A <a class="link" href="cogl-2.0-experimental-Rectangle-textures-(non-normalized-coordinates).html#CoglTextureRectangle" title="CoglTextureRectangle"><span class="type">CoglTextureRectangle</span></a></p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: 1.10</p>
<p class="stability">Stability Level: <acronym title="Unstable interfaces are experimental or transitional. They are typically used to
give outside developers early access to new or rapidly changing technology, or
to provide an interim solution to a problem where a more general solution is
anticipated. No claims are made about either source or binary compatibility from
one minor release to the next.
The Unstable interface level is a warning that these interfaces are subject to
change without warning and should not be used in unbundled products.
Given such caveats, customer impact need not be a factor when considering
incompatible changes to an Unstable interface in a major or minor release.
Nonetheless, when such changes are introduced, the changes should still be
mentioned in the release notes for the affected release.
"><span class="acronym">Unstable</span></acronym></p>
</div>
<hr>
<div class="refsect2">
<a name="CoglTextureComponents"></a><h3>enum CoglTextureComponents</h3>
<p>See <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#cogl-texture-set-components" title="cogl_texture_set_components ()"><code class="function">cogl_texture_set_components()</code></a>.</p>
<div class="refsect3">
<a name="id-1.2.9.3.7.5.4"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-COMPONENTS-A:CAPS"></a>COGL_TEXTURE_COMPONENTS_A</p></td>
<td class="enum_member_description">
<p>Only the alpha component</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-COMPONENTS-RG:CAPS"></a>COGL_TEXTURE_COMPONENTS_RG</p></td>
<td class="enum_member_description">
<p>Red and green components. Note that
this can only be used if the <a class="link" href="cogl-2.0-experimental-The-Top-Level-Context.html#COGL-FEATURE-ID-TEXTURE-RG:CAPS"><code class="literal">COGL_FEATURE_ID_TEXTURE_RG</code></a> feature
is advertised.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-COMPONENTS-RGB:CAPS"></a>COGL_TEXTURE_COMPONENTS_RGB</p></td>
<td class="enum_member_description">
<p>Red, green and blue components</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-COMPONENTS-RGBA:CAPS"></a>COGL_TEXTURE_COMPONENTS_RGBA</p></td>
<td class="enum_member_description">
<p>Red, green, blue and alpha components</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="COGL-TEXTURE-COMPONENTS-DEPTH:CAPS"></a>COGL_TEXTURE_COMPONENTS_DEPTH</p></td>
<td class="enum_member_description">
<p>Only a depth component</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: 1.18</p>
</div>
</div>
</div>
<div class="footer">
<hr>Generated by GTK-Doc V1.24</div>
</body>
</html>
|