teximage.c revision c52fc9b49cbd6158da9e96ccd57a38197293a3e0
1/* $Id: teximage.c,v 1.48 2000/09/05 22:11:38 brianp Exp $ */ 2 3/* 4 * Mesa 3-D graphics library 5 * Version: 3.5 6 * 7 * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included 17 * in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 */ 26 27 28#ifdef PC_HEADER 29#include "all.h" 30#else 31#include "glheader.h" 32#include "context.h" 33#include "convolve.h" 34#include "image.h" 35#include "mem.h" 36#include "mmath.h" 37#include "span.h" 38#include "state.h" 39#include "teximage.h" 40#include "texstate.h" 41#include "types.h" 42#endif 43 44 45/* 46 * NOTES: 47 * 48 * Mesa's native texture datatype is GLubyte. Native formats are 49 * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA, 50 * and GL_COLOR_INDEX. 51 * Device drivers are free to implement any internal format they want. 52 */ 53 54 55#ifdef DEBUG 56static void PrintTexture(const struct gl_texture_image *img) 57{ 58 int i, j, c; 59 GLubyte *data = img->Data; 60 61 if (!data) { 62 printf("No texture data\n"); 63 return; 64 } 65 66 switch (img->Format) { 67 case GL_ALPHA: 68 case GL_LUMINANCE: 69 case GL_INTENSITY: 70 case GL_COLOR_INDEX: 71 c = 1; 72 break; 73 case GL_LUMINANCE_ALPHA: 74 c = 2; 75 break; 76 case GL_RGB: 77 c = 3; 78 break; 79 case GL_RGBA: 80 c = 4; 81 break; 82 default: 83 gl_problem(NULL, "error in PrintTexture\n"); 84 return; 85 } 86 87 88 for (i = 0; i < img->Height; i++) { 89 for (j = 0; j < img->Width; j++) { 90 if (c==1) 91 printf("%02x ", data[0]); 92 else if (c==2) 93 printf("%02x%02x ", data[0], data[1]); 94 else if (c==3) 95 printf("%02x%02x%02x ", data[0], data[1], data[2]); 96 else if (c==4) 97 printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]); 98 data += c; 99 } 100 printf("\n"); 101 } 102} 103#endif 104 105 106 107/* 108 * Compute log base 2 of n. 109 * If n isn't an exact power of two return -1. 110 * If n<0 return -1. 111 */ 112static int 113logbase2( int n ) 114{ 115 GLint i = 1; 116 GLint log2 = 0; 117 118 if (n<0) { 119 return -1; 120 } 121 122 while ( n > i ) { 123 i *= 2; 124 log2++; 125 } 126 if (i != n) { 127 return -1; 128 } 129 else { 130 return log2; 131 } 132} 133 134 135 136/* 137 * Given an internal texture format enum or 1, 2, 3, 4 return the 138 * corresponding _base_ internal format: GL_ALPHA, GL_LUMINANCE, 139 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA. 140 * Return -1 if invalid enum. 141 */ 142GLint 143_mesa_base_tex_format( GLcontext *ctx, GLint format ) 144{ 145 /* 146 * Ask the driver for the base format, if it doesn't 147 * know, it will return -1; 148 */ 149 if (ctx->Driver.BaseCompressedTexFormat) { 150 GLint ifmt = (*ctx->Driver.BaseCompressedTexFormat)(ctx, format); 151 if (ifmt >= 0) { 152 return ifmt; 153 } 154 } 155 switch (format) { 156 case GL_ALPHA: 157 case GL_ALPHA4: 158 case GL_ALPHA8: 159 case GL_ALPHA12: 160 case GL_ALPHA16: 161 return GL_ALPHA; 162 case 1: 163 case GL_LUMINANCE: 164 case GL_LUMINANCE4: 165 case GL_LUMINANCE8: 166 case GL_LUMINANCE12: 167 case GL_LUMINANCE16: 168 return GL_LUMINANCE; 169 case 2: 170 case GL_LUMINANCE_ALPHA: 171 case GL_LUMINANCE4_ALPHA4: 172 case GL_LUMINANCE6_ALPHA2: 173 case GL_LUMINANCE8_ALPHA8: 174 case GL_LUMINANCE12_ALPHA4: 175 case GL_LUMINANCE12_ALPHA12: 176 case GL_LUMINANCE16_ALPHA16: 177 return GL_LUMINANCE_ALPHA; 178 case GL_INTENSITY: 179 case GL_INTENSITY4: 180 case GL_INTENSITY8: 181 case GL_INTENSITY12: 182 case GL_INTENSITY16: 183 return GL_INTENSITY; 184 case 3: 185 case GL_RGB: 186 case GL_R3_G3_B2: 187 case GL_RGB4: 188 case GL_RGB5: 189 case GL_RGB8: 190 case GL_RGB10: 191 case GL_RGB12: 192 case GL_RGB16: 193 return GL_RGB; 194 case 4: 195 case GL_RGBA: 196 case GL_RGBA2: 197 case GL_RGBA4: 198 case GL_RGB5_A1: 199 case GL_RGBA8: 200 case GL_RGB10_A2: 201 case GL_RGBA12: 202 case GL_RGBA16: 203 return GL_RGBA; 204 case GL_COLOR_INDEX: 205 case GL_COLOR_INDEX1_EXT: 206 case GL_COLOR_INDEX2_EXT: 207 case GL_COLOR_INDEX4_EXT: 208 case GL_COLOR_INDEX8_EXT: 209 case GL_COLOR_INDEX12_EXT: 210 case GL_COLOR_INDEX16_EXT: 211 return GL_COLOR_INDEX; 212 default: 213 return -1; /* error */ 214 } 215} 216 217 218 219/* 220 * Given an internal texture format enum or 1, 2, 3, 4 return the 221 * corresponding _base_ internal format: GL_ALPHA, GL_LUMINANCE, 222 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA. Return the 223 * number of components for the format. Return -1 if invalid enum. 224 */ 225static GLint 226components_in_intformat( GLint format ) 227{ 228 switch (format) { 229 case GL_ALPHA: 230 case GL_ALPHA4: 231 case GL_ALPHA8: 232 case GL_ALPHA12: 233 case GL_ALPHA16: 234 return 1; 235 case 1: 236 case GL_LUMINANCE: 237 case GL_LUMINANCE4: 238 case GL_LUMINANCE8: 239 case GL_LUMINANCE12: 240 case GL_LUMINANCE16: 241 return 1; 242 case 2: 243 case GL_LUMINANCE_ALPHA: 244 case GL_LUMINANCE4_ALPHA4: 245 case GL_LUMINANCE6_ALPHA2: 246 case GL_LUMINANCE8_ALPHA8: 247 case GL_LUMINANCE12_ALPHA4: 248 case GL_LUMINANCE12_ALPHA12: 249 case GL_LUMINANCE16_ALPHA16: 250 return 2; 251 case GL_INTENSITY: 252 case GL_INTENSITY4: 253 case GL_INTENSITY8: 254 case GL_INTENSITY12: 255 case GL_INTENSITY16: 256 return 1; 257 case 3: 258 case GL_RGB: 259 case GL_R3_G3_B2: 260 case GL_RGB4: 261 case GL_RGB5: 262 case GL_RGB8: 263 case GL_RGB10: 264 case GL_RGB12: 265 case GL_RGB16: 266 return 3; 267 case 4: 268 case GL_RGBA: 269 case GL_RGBA2: 270 case GL_RGBA4: 271 case GL_RGB5_A1: 272 case GL_RGBA8: 273 case GL_RGB10_A2: 274 case GL_RGBA12: 275 case GL_RGBA16: 276 return 4; 277 case GL_COLOR_INDEX: 278 case GL_COLOR_INDEX1_EXT: 279 case GL_COLOR_INDEX2_EXT: 280 case GL_COLOR_INDEX4_EXT: 281 case GL_COLOR_INDEX8_EXT: 282 case GL_COLOR_INDEX12_EXT: 283 case GL_COLOR_INDEX16_EXT: 284 return 1; 285 default: 286 return -1; /* error */ 287 } 288} 289 290 291/* 292 * Return GL_TRUE if internalFormat is a compressed format, return GL_FALSE 293 * otherwise. 294 */ 295static GLboolean 296is_compressed_format(GLcontext *ctx, GLenum internalFormat) 297{ 298 if (ctx->Driver.IsCompressedFormat) { 299 return (*ctx->Driver.IsCompressedFormat)(ctx, internalFormat); 300 } 301 return GL_FALSE; 302} 303 304 305 306/* 307 * Examine the texImage->Format field and set the Red, Green, Blue, etc 308 * texel component sizes to default values. 309 * These fields are set only here by core Mesa but device drivers may 310 * overwritting these fields to indicate true texel resolution. 311 */ 312static void 313set_teximage_component_sizes( struct gl_texture_image *texImage ) 314{ 315 switch (texImage->Format) { 316 case GL_ALPHA: 317 texImage->RedBits = 0; 318 texImage->GreenBits = 0; 319 texImage->BlueBits = 0; 320 texImage->AlphaBits = 8; 321 texImage->IntensityBits = 0; 322 texImage->LuminanceBits = 0; 323 texImage->IndexBits = 0; 324 break; 325 case GL_LUMINANCE: 326 texImage->RedBits = 0; 327 texImage->GreenBits = 0; 328 texImage->BlueBits = 0; 329 texImage->AlphaBits = 0; 330 texImage->IntensityBits = 0; 331 texImage->LuminanceBits = 8; 332 texImage->IndexBits = 0; 333 break; 334 case GL_LUMINANCE_ALPHA: 335 texImage->RedBits = 0; 336 texImage->GreenBits = 0; 337 texImage->BlueBits = 0; 338 texImage->AlphaBits = 8; 339 texImage->IntensityBits = 0; 340 texImage->LuminanceBits = 8; 341 texImage->IndexBits = 0; 342 break; 343 case GL_INTENSITY: 344 texImage->RedBits = 0; 345 texImage->GreenBits = 0; 346 texImage->BlueBits = 0; 347 texImage->AlphaBits = 0; 348 texImage->IntensityBits = 8; 349 texImage->LuminanceBits = 0; 350 texImage->IndexBits = 0; 351 break; 352 case GL_RED: 353 texImage->RedBits = 8; 354 texImage->GreenBits = 0; 355 texImage->BlueBits = 0; 356 texImage->AlphaBits = 0; 357 texImage->IntensityBits = 0; 358 texImage->LuminanceBits = 0; 359 texImage->IndexBits = 0; 360 break; 361 case GL_GREEN: 362 texImage->RedBits = 0; 363 texImage->GreenBits = 8; 364 texImage->BlueBits = 0; 365 texImage->AlphaBits = 0; 366 texImage->IntensityBits = 0; 367 texImage->LuminanceBits = 0; 368 texImage->IndexBits = 0; 369 break; 370 case GL_BLUE: 371 texImage->RedBits = 0; 372 texImage->GreenBits = 0; 373 texImage->BlueBits = 8; 374 texImage->AlphaBits = 0; 375 texImage->IntensityBits = 0; 376 texImage->LuminanceBits = 0; 377 texImage->IndexBits = 0; 378 break; 379 case GL_RGB: 380 case GL_BGR: 381 texImage->RedBits = 8; 382 texImage->GreenBits = 8; 383 texImage->BlueBits = 8; 384 texImage->AlphaBits = 0; 385 texImage->IntensityBits = 0; 386 texImage->LuminanceBits = 0; 387 texImage->IndexBits = 0; 388 break; 389 case GL_RGBA: 390 case GL_BGRA: 391 case GL_ABGR_EXT: 392 texImage->RedBits = 8; 393 texImage->GreenBits = 8; 394 texImage->BlueBits = 8; 395 texImage->AlphaBits = 8; 396 texImage->IntensityBits = 0; 397 texImage->LuminanceBits = 0; 398 texImage->IndexBits = 0; 399 break; 400 case GL_COLOR_INDEX: 401 texImage->RedBits = 0; 402 texImage->GreenBits = 0; 403 texImage->BlueBits = 0; 404 texImage->AlphaBits = 0; 405 texImage->IntensityBits = 0; 406 texImage->LuminanceBits = 0; 407 texImage->IndexBits = 8; 408 break; 409 default: 410 gl_problem(NULL, "unexpected format in set_teximage_component_sizes"); 411 } 412} 413 414 415static void 416set_tex_image(struct gl_texture_object *tObj, 417 GLenum target, GLint level, 418 struct gl_texture_image *texImage) 419{ 420 ASSERT(tObj); 421 ASSERT(texImage); 422 switch (target) { 423 case GL_TEXTURE_2D: 424 tObj->Image[level] = texImage; 425 return; 426 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 427 tObj->Image[level] = texImage; 428 return; 429 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 430 tObj->NegX[level] = texImage; 431 return; 432 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 433 tObj->PosY[level] = texImage; 434 return; 435 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 436 tObj->NegY[level] = texImage; 437 return; 438 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 439 tObj->PosZ[level] = texImage; 440 return; 441 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 442 tObj->NegZ[level] = texImage; 443 return; 444 default: 445 gl_problem(NULL, "bad target in set_tex_image()"); 446 return; 447 } 448} 449 450 451/* 452 * Return new gl_texture_image struct with all fields initialized to zero. 453 */ 454struct gl_texture_image * 455_mesa_alloc_texture_image( void ) 456{ 457 return CALLOC_STRUCT(gl_texture_image); 458} 459 460 461 462/* 463 * Initialize most fields of a gl_texture_image struct. 464 */ 465static void 466init_texture_image( GLcontext *ctx, 467 struct gl_texture_image *img, 468 GLsizei width, GLsizei height, GLsizei depth, 469 GLint border, GLenum internalFormat ) 470{ 471 ASSERT(img); 472 ASSERT(!img->Data); 473 img->Format = (GLenum) _mesa_base_tex_format(ctx, internalFormat); 474 set_teximage_component_sizes( img ); 475 img->IntFormat = (GLenum) internalFormat; 476 img->Border = border; 477 img->Width = width; 478 img->Height = height; 479 img->Depth = depth; 480 img->WidthLog2 = logbase2(width - 2 * border); 481 if (height == 1) /* 1-D texture */ 482 img->HeightLog2 = 0; 483 else 484 img->HeightLog2 = logbase2(height - 2 * border); 485 if (depth == 1) /* 2-D texture */ 486 img->DepthLog2 = 0; 487 else 488 img->DepthLog2 = logbase2(depth - 2 * border); 489 img->Width2 = 1 << img->WidthLog2; 490 img->Height2 = 1 << img->HeightLog2; 491 img->Depth2 = 1 << img->DepthLog2; 492 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); 493 img->IsCompressed = is_compressed_format(ctx, internalFormat); 494} 495 496 497 498void 499_mesa_free_texture_image( struct gl_texture_image *teximage ) 500{ 501 if (teximage->Data) { 502 FREE( teximage->Data ); 503 teximage->Data = NULL; 504 } 505 FREE( teximage ); 506} 507 508 509 510/* 511 * Return number of bytes of storage needed to store a compressed texture 512 * image. Only the driver knows for sure. If the driver can't help us, 513 * we must return 0. 514 */ 515GLuint 516_mesa_compressed_image_size(GLcontext *ctx, 517 GLenum internalFormat, 518 GLint numDimensions, 519 GLint width, 520 GLint height, 521 GLint depth) 522{ 523 if (ctx->Driver.CompressedImageSize) { 524 return (*ctx->Driver.CompressedImageSize)(ctx, internalFormat, 525 numDimensions, 526 width, height, depth); 527 } 528 else { 529 /* Shouldn't this be an internal error of some sort? */ 530 return 0; 531 } 532} 533 534 535 536/* 537 * Given a texture unit and a texture target, return the corresponding 538 * texture object. 539 */ 540struct gl_texture_object * 541_mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit, 542 GLenum target) 543{ 544 switch (target) { 545 case GL_TEXTURE_1D: 546 return texUnit->CurrentD[1]; 547 case GL_PROXY_TEXTURE_1D: 548 return ctx->Texture.Proxy1D; 549 case GL_TEXTURE_2D: 550 return texUnit->CurrentD[2]; 551 case GL_PROXY_TEXTURE_2D: 552 return ctx->Texture.Proxy2D; 553 case GL_TEXTURE_3D: 554 return texUnit->CurrentD[3]; 555 case GL_PROXY_TEXTURE_3D: 556 return ctx->Texture.Proxy3D; 557 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 558 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 559 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 560 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 561 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 562 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 563 return ctx->Extensions.HaveTextureCubeMap 564 ? texUnit->CurrentCubeMap : NULL; 565 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 566 return ctx->Extensions.HaveTextureCubeMap 567 ? ctx->Texture.ProxyCubeMap : NULL; 568 default: 569 gl_problem(NULL, "bad target in _mesa_select_tex_object()"); 570 return NULL; 571 } 572} 573 574 575/* 576 * Return the texture image struct which corresponds to target and level 577 * for the given texture unit. 578 */ 579struct gl_texture_image * 580_mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit, 581 GLenum target, GLint level) 582{ 583 ASSERT(texUnit); 584 switch (target) { 585 case GL_TEXTURE_1D: 586 return texUnit->CurrentD[1]->Image[level]; 587 case GL_PROXY_TEXTURE_1D: 588 return ctx->Texture.Proxy1D->Image[level]; 589 case GL_TEXTURE_2D: 590 return texUnit->CurrentD[2]->Image[level]; 591 case GL_PROXY_TEXTURE_2D: 592 return ctx->Texture.Proxy2D->Image[level]; 593 case GL_TEXTURE_3D: 594 return texUnit->CurrentD[3]->Image[level]; 595 case GL_PROXY_TEXTURE_3D: 596 return ctx->Texture.Proxy3D->Image[level]; 597 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 598 if (ctx->Extensions.HaveTextureCubeMap) 599 return texUnit->CurrentCubeMap->Image[level]; 600 else 601 return NULL; 602 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 603 if (ctx->Extensions.HaveTextureCubeMap) 604 return texUnit->CurrentCubeMap->NegX[level]; 605 else 606 return NULL; 607 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 608 if (ctx->Extensions.HaveTextureCubeMap) 609 return texUnit->CurrentCubeMap->PosY[level]; 610 else 611 return NULL; 612 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 613 if (ctx->Extensions.HaveTextureCubeMap) 614 return texUnit->CurrentCubeMap->NegY[level]; 615 else 616 return NULL; 617 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 618 if (ctx->Extensions.HaveTextureCubeMap) 619 return texUnit->CurrentCubeMap->PosZ[level]; 620 else 621 return NULL; 622 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 623 if (ctx->Extensions.HaveTextureCubeMap) 624 return texUnit->CurrentCubeMap->NegZ[level]; 625 else 626 return NULL; 627 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 628 if (ctx->Extensions.HaveTextureCubeMap) 629 return ctx->Texture.ProxyCubeMap->Image[level]; 630 else 631 return NULL; 632 default: 633 gl_problem(ctx, "bad target in _mesa_select_tex_image()"); 634 return NULL; 635 } 636} 637 638 639 640/* 641 * Calling glTexImage and related functions when convolution is enabled 642 * with GL_REDUCE border mode causes some complications. 643 * The incoming image must be extra large so that the post-convolution 644 * image size is reduced to a power of two size (plus 2 * border). 645 * This function adjusts a texture width and height accordingly if 646 * convolution with GL_REDUCE is enabled. 647 */ 648static void 649adjust_texture_size_for_convolution(const GLcontext *ctx, GLuint dimensions, 650 GLsizei *width, GLsizei *height) 651{ 652 if (ctx->Pixel.Convolution1DEnabled 653 && dimensions == 1 654 && ctx->Pixel.ConvolutionBorderMode[0] == GL_REDUCE) { 655 *width = *width - (MAX2(ctx->Convolution1D.Width, 1) - 1); 656 } 657 else if (ctx->Pixel.Convolution2DEnabled 658 && dimensions > 1 659 && ctx->Pixel.ConvolutionBorderMode[1] == GL_REDUCE) { 660 *width = *width - (MAX2(ctx->Convolution2D.Width, 1) - 1); 661 *height = *height - (MAX2(ctx->Convolution2D.Height, 1) - 1); 662 } 663 else if (ctx->Pixel.Separable2DEnabled 664 && dimensions > 1 665 && ctx->Pixel.ConvolutionBorderMode[2] == GL_REDUCE) { 666 *width = *width - (MAX2(ctx->Separable2D.Width, 1) - 1); 667 *height = *height - (MAX2(ctx->Separable2D.Height, 1) - 1); 668 } 669} 670 671 672 673/* 674 * This function is used to move user image data into a texture image. 675 * We handle full texture images and subtexture images. We also take 676 * care of all image transfer operations here, including convolution. 677 * Input: 678 * dstXoffset, dstYoffset, dstZoffset - offsets in pixels 679 * dstRowStride, dstImageStride - strides in bytes 680 */ 681static void 682fill_texture_image( GLcontext *ctx, GLuint dimensions, 683 GLenum texFormat, GLubyte *texAddr, 684 GLint srcWidth, GLint srcHeight, GLint srcDepth, 685 GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, 686 GLint dstRowStride, GLint dstImageStride, 687 GLenum srcFormat, GLenum srcType, const GLvoid *srcAddr, 688 const struct gl_pixelstore_attrib *srcPacking) 689{ 690 GLint texComponents; 691 692 ASSERT(ctx); 693 ASSERT(dimensions >= 1 && dimensions <= 3); 694 ASSERT(texAddr); 695 ASSERT(srcWidth >= 1); 696 ASSERT(srcHeight >= 1); 697 ASSERT(srcDepth >= 1); 698 ASSERT(dstXoffset >= 0); 699 ASSERT(dstYoffset >= 0); 700 ASSERT(dstZoffset >= 0); 701 ASSERT(dstRowStride >= 0); 702 ASSERT(dstImageStride >= 0); 703 ASSERT(srcAddr); 704 ASSERT(srcPacking); 705 706 texComponents = components_in_intformat(texFormat); 707 708 /* try common 2D texture cases first */ 709 if (!ctx->ImageTransferState && dimensions == 2 710 && srcType == GL_UNSIGNED_BYTE) { 711 712 if (srcFormat == texFormat) { 713 /* This will cover the common GL_RGB, GL_RGBA, GL_ALPHA, 714 * GL_LUMINANCE_ALPHA, etc. texture formats. Use memcpy(). 715 */ 716 const GLubyte *src = (const GLubyte *) _mesa_image_address( 717 srcPacking, srcAddr, srcWidth, srcHeight, 718 srcFormat, srcType, 0, 0, 0); 719 const GLint srcRowStride = _mesa_image_row_stride(srcPacking, 720 srcWidth, srcFormat, srcType); 721 const GLint widthInBytes = srcWidth * texComponents; 722 GLubyte *dst = texAddr + dstYoffset * dstRowStride 723 + dstXoffset * texComponents * sizeof(GLubyte); 724 if (srcRowStride == widthInBytes && dstRowStride == widthInBytes) { 725 MEMCPY(dst, src, srcHeight * widthInBytes); 726 } 727 else { 728 GLint i; 729 for (i = 0; i < srcHeight; i++) { 730 MEMCPY(dst, src, widthInBytes); 731 src += srcRowStride; 732 dst += dstRowStride; 733 } 734 } 735 return; /* all done */ 736 } 737 else if (srcFormat == GL_RGBA && texFormat == GL_RGB) { 738 /* commonly used by Quake */ 739 const GLubyte *src = (const GLubyte *) _mesa_image_address( 740 srcPacking, srcAddr, srcWidth, srcHeight, 741 srcFormat, srcType, 0, 0, 0); 742 const GLint srcRowStride = _mesa_image_row_stride(srcPacking, 743 srcWidth, srcFormat, srcType); 744 GLubyte *dst = texAddr + dstYoffset * dstRowStride 745 + dstXoffset * texComponents * sizeof(GLubyte); 746 GLint i, j; 747 for (i = 0; i < srcHeight; i++) { 748 const GLubyte *s = src; 749 GLubyte *d = dst; 750 for (j = 0; j < srcWidth; j++) { 751 *d++ = *s++; /*red*/ 752 *d++ = *s++; /*green*/ 753 *d++ = *s++; /*blue*/ 754 s++; /*alpha*/ 755 } 756 src += srcRowStride; 757 dst += dstRowStride; 758 } 759 return; /* all done */ 760 } 761 } 762 763 /* 764 * General case solutions 765 */ 766 if (texFormat == GL_COLOR_INDEX) { 767 /* color index texture */ 768 const GLenum texType = GL_UNSIGNED_BYTE; 769 GLint img, row; 770 GLubyte *dest = texAddr + dstZoffset * dstImageStride 771 + dstYoffset * dstRowStride 772 + dstXoffset * texComponents * sizeof(GLubyte); 773 for (img = 0; img < srcDepth; img++) { 774 GLubyte *destRow = dest; 775 for (row = 0; row < srcHeight; row++) { 776 const GLvoid *src = _mesa_image_address(srcPacking, 777 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); 778 _mesa_unpack_index_span(ctx, srcWidth, texType, destRow, 779 srcType, src, srcPacking, 780 ctx->ImageTransferState); 781 destRow += dstRowStride; 782 } 783 dest += dstImageStride; 784 } 785 } 786 else { 787 /* regular, color texture */ 788 if ((dimensions == 1 && ctx->Pixel.Convolution1DEnabled) || 789 (dimensions >= 2 && ctx->Pixel.Convolution2DEnabled) || 790 (dimensions >= 2 && ctx->Pixel.Separable2DEnabled)) { 791 /* 792 * Fill texture image with convolution 793 */ 794 GLint img, row; 795 GLint convWidth = srcWidth, convHeight = srcHeight; 796 GLfloat *tmpImage, *convImage; 797 tmpImage = (GLfloat *) MALLOC(srcWidth * srcHeight * 4 * sizeof(GLfloat)); 798 if (!tmpImage) { 799 gl_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 800 return; 801 } 802 convImage = (GLfloat *) MALLOC(srcWidth * srcHeight * 4 * sizeof(GLfloat)); 803 if (!convImage) { 804 gl_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 805 FREE(tmpImage); 806 return; 807 } 808 809 for (img = 0; img < srcDepth; img++) { 810 const GLfloat *srcf; 811 GLfloat *dstf = tmpImage; 812 GLubyte *dest; 813 814 /* unpack and do transfer ops up to convolution */ 815 for (row = 0; row < srcHeight; row++) { 816 const GLvoid *src = _mesa_image_address(srcPacking, 817 srcAddr, srcWidth, srcHeight, 818 srcFormat, srcType, img, row, 0); 819 _mesa_unpack_float_color_span(ctx, srcWidth, GL_RGBA, dstf, 820 srcFormat, srcType, src, srcPacking, 821 ctx->ImageTransferState & IMAGE_PRE_CONVOLUTION_BITS, 822 GL_TRUE); 823 dstf += srcWidth * 4; 824 } 825 826 /* convolve */ 827 if (dimensions == 1) { 828 ASSERT(ctx->Pixel.Convolution1DEnabled); 829 _mesa_convolve_1d_image(ctx, &convWidth, tmpImage, convImage); 830 } 831 else { 832 if (ctx->Pixel.Convolution2DEnabled) { 833 _mesa_convolve_2d_image(ctx, &convWidth, &convHeight, 834 tmpImage, convImage); 835 } 836 else { 837 ASSERT(ctx->Pixel.Separable2DEnabled); 838 _mesa_convolve_sep_image(ctx, &convWidth, &convHeight, 839 tmpImage, convImage); 840 } 841 } 842 843 /* packing and transfer ops after convolution */ 844 srcf = convImage; 845 dest = texAddr + (dstZoffset + img) * dstImageStride 846 + dstYoffset * dstRowStride; 847 for (row = 0; row < convHeight; row++) { 848 _mesa_pack_float_rgba_span(ctx, convWidth, 849 (const GLfloat (*)[4]) srcf, 850 texFormat, GL_UNSIGNED_BYTE, 851 dest, &_mesa_native_packing, 852 ctx->ImageTransferState 853 & IMAGE_POST_CONVOLUTION_BITS); 854 srcf += convWidth * 4; 855 dest += dstRowStride; 856 } 857 } 858 859 FREE(convImage); 860 FREE(tmpImage); 861 } 862 else { 863 /* 864 * no convolution 865 */ 866 GLint img, row; 867 GLubyte *dest = texAddr + dstZoffset * dstImageStride 868 + dstYoffset * dstRowStride 869 + dstXoffset * texComponents * sizeof(GLubyte); 870 for (img = 0; img < srcDepth; img++) { 871 GLubyte *destRow = dest; 872 for (row = 0; row < srcHeight; row++) { 873 const GLvoid *srcRow = _mesa_image_address(srcPacking, 874 srcAddr, srcWidth, srcHeight, 875 srcFormat, srcType, img, row, 0); 876 _mesa_unpack_ubyte_color_span(ctx, srcWidth, texFormat, destRow, 877 srcFormat, srcType, srcRow, srcPacking, 878 ctx->ImageTransferState); 879 destRow += dstRowStride; 880 } 881 dest += dstImageStride; 882 } 883 } 884 } 885} 886 887 888 889/* Need this to prevent an out-of-bounds memory access when using 890 * X86 optimized code. 891 */ 892#ifdef USE_X86_ASM 893# define EXTRA_BYTE 1 894#else 895# define EXTRA_BYTE 0 896#endif 897 898 899 900/* 901 * Called by glTexImage[123]D. Fill in a texture image with data given 902 * by the client. All pixel transfer and unpack modes are handled here. 903 * Input: dimensions (1, 2, or 3) 904 * texImage - destination texture image (we'll malloc the memory) 905 * width, height, depth - size of source image 906 * srcFormat, srcType - source image format and type 907 * pixels - source image data 908 * srcPacking - source image packing parameters 909 * 910 * NOTE: All texture image parameters should have already been error checked. 911 * 912 * NOTE: the texImage dimensions and source image dimensions must be correct 913 * with respect to convolution with border mode = reduce. 914 */ 915static void 916make_texture_image( GLcontext *ctx, GLuint dimensions, 917 struct gl_texture_image *texImage, 918 GLint width, GLint height, GLint depth, 919 GLenum srcFormat, GLenum srcType, const GLvoid *pixels, 920 const struct gl_pixelstore_attrib *srcPacking) 921{ 922 const GLint internalFormat = texImage->IntFormat; 923 const GLint components = components_in_intformat(internalFormat); 924 GLint convWidth = width, convHeight = height; 925 926 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) { 927 _mesa_update_image_transfer_state(ctx); 928 } 929 930 if (ctx->ImageTransferState & IMAGE_CONVOLUTION_BIT) { 931 adjust_texture_size_for_convolution(ctx, dimensions, 932 &convWidth, &convHeight); 933 } 934 935 texImage->Data = (GLubyte *) MALLOC(convWidth * convHeight * depth 936 * components + EXTRA_BYTE); 937 if (!texImage->Data) 938 return; /* out of memory */ 939 940 fill_texture_image(ctx, dimensions, texImage->Format, texImage->Data, 941 width, height, depth, 0, 0, 0, 942 convWidth * components * sizeof(GLubyte), 943 convWidth * convHeight * components * sizeof(GLubyte), 944 srcFormat, srcType, pixels, srcPacking); 945} 946 947 948 949/* 950 * glTexImage[123]D can accept a NULL image pointer. In this case we 951 * create a texture image with unspecified image contents per the OpenGL 952 * spec. This function creates an empty image for the given texture image. 953 */ 954static void 955make_null_texture( struct gl_texture_image *texImage ) 956{ 957 GLint components; 958 GLint numPixels; 959 960 ASSERT(texImage); 961 ASSERT(!texImage->Data); 962 963 components = components_in_intformat(texImage->IntFormat); 964 numPixels = texImage->Width * texImage->Height * texImage->Depth; 965 966 texImage->Data = (GLubyte *) MALLOC( numPixels * components + EXTRA_BYTE ); 967 968 /* 969 * Let's see if anyone finds this. If glTexImage2D() is called with 970 * a NULL image pointer then load the texture image with something 971 * interesting instead of leaving it indeterminate. 972 */ 973 if (texImage->Data) { 974 static const char message[8][32] = { 975 " X X XXXXX XXX X ", 976 " XX XX X X X X X ", 977 " X X X X X X X ", 978 " X X XXXX XXX XXXXX ", 979 " X X X X X X ", 980 " X X X X X X X ", 981 " X X XXXXX XXX X X ", 982 " " 983 }; 984 985 GLubyte *imgPtr = texImage->Data; 986 GLint i, j, k; 987 for (i = 0; i < texImage->Height; i++) { 988 GLint srcRow = 7 - i % 8; 989 for (j = 0; j < texImage->Width; j++) { 990 GLint srcCol = j % 32; 991 GLint texel = (message[srcRow][srcCol]=='X') ? 255 : 70; 992 for (k=0;k<components;k++) { 993 *imgPtr++ = (GLubyte) texel; 994 } 995 } 996 } 997 } 998} 999 1000 1001 1002/* 1003 * This is called when a proxy texture test fails, we set all the 1004 * image members (except DriverData) to zero. 1005 */ 1006static void 1007clear_proxy_teximage(struct gl_texture_image *img) 1008{ 1009 ASSERT(img); 1010 img->Format = 0; 1011 img->IntFormat = 0; 1012 img->RedBits = 0; 1013 img->GreenBits = 0; 1014 img->BlueBits = 0; 1015 img->AlphaBits = 0; 1016 img->IntensityBits = 0; 1017 img->LuminanceBits = 0; 1018 img->IndexBits = 0; 1019 img->Border = 0; 1020 img->Width = 0; 1021 img->Height = 0; 1022 img->Depth = 0; 1023 img->Width2 = 0; 1024 img->Height2 = 0; 1025 img->Depth2 = 0; 1026 img->WidthLog2 = 0; 1027 img->HeightLog2 = 0; 1028 img->DepthLog2 = 0; 1029 img->Data = NULL; 1030 img->IsCompressed = 0; 1031 img->CompressedSize = 0; 1032} 1033 1034 1035 1036/* 1037 * Test glTexImage[123]D() parameters for errors. 1038 * Input: 1039 * dimensions - must be 1 or 2 or 3 1040 * Return: GL_TRUE = an error was detected, GL_FALSE = no errors 1041 */ 1042static GLboolean 1043texture_error_check( GLcontext *ctx, GLenum target, 1044 GLint level, GLint internalFormat, 1045 GLenum format, GLenum type, 1046 GLuint dimensions, 1047 GLint width, GLint height, 1048 GLint depth, GLint border ) 1049{ 1050 GLboolean isProxy; 1051 GLint iformat; 1052 1053 if (dimensions == 1) { 1054 isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_1D); 1055 if (target != GL_TEXTURE_1D && !isProxy) { 1056 gl_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" ); 1057 return GL_TRUE; 1058 } 1059 } 1060 else if (dimensions == 2) { 1061 isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_2D); 1062 if (target != GL_TEXTURE_2D && !isProxy && 1063 !(ctx->Extensions.HaveTextureCubeMap && 1064 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 1065 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) { 1066 gl_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" ); 1067 return GL_TRUE; 1068 } 1069 } 1070 else if (dimensions == 3) { 1071 isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_3D); 1072 if (target != GL_TEXTURE_3D && !isProxy) { 1073 gl_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" ); 1074 return GL_TRUE; 1075 } 1076 } 1077 else { 1078 gl_problem( ctx, "bad dims in texture_error_check" ); 1079 return GL_TRUE; 1080 } 1081 1082 /* Border */ 1083 if (border != 0 && border != 1) { 1084 if (!isProxy) { 1085 char message[100]; 1086 sprintf(message, "glTexImage%dD(border)", dimensions); 1087 gl_error(ctx, GL_INVALID_VALUE, message); 1088 } 1089 return GL_TRUE; 1090 } 1091 1092 /* Width */ 1093 if (width < 2 * border || width > 2 + ctx->Const.MaxTextureSize 1094 || logbase2( width - 2 * border ) < 0) { 1095 if (!isProxy) { 1096 char message[100]; 1097 sprintf(message, "glTexImage%dD(width)", dimensions); 1098 gl_error(ctx, GL_INVALID_VALUE, message); 1099 } 1100 return GL_TRUE; 1101 } 1102 1103 /* Height */ 1104 if (dimensions >= 2) { 1105 if (height < 2 * border || height > 2 + ctx->Const.MaxTextureSize 1106 || logbase2( height - 2 * border ) < 0) { 1107 if (!isProxy) { 1108 char message[100]; 1109 sprintf(message, "glTexImage%dD(height)", dimensions); 1110 gl_error(ctx, GL_INVALID_VALUE, message); 1111 } 1112 return GL_TRUE; 1113 } 1114 } 1115 1116 /* For cube map, width must equal height */ 1117 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 1118 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { 1119 if (width != height) { 1120 if (!isProxy) { 1121 gl_error(ctx, GL_INVALID_VALUE, "glTexImage2D(width != height)"); 1122 } 1123 return GL_TRUE; 1124 } 1125 } 1126 1127 /* Depth */ 1128 if (dimensions >= 3) { 1129 if (depth < 2 * border || depth > 2 + ctx->Const.MaxTextureSize 1130 || logbase2( depth - 2 * border ) < 0) { 1131 if (!isProxy) { 1132 gl_error( ctx, GL_INVALID_VALUE, "glTexImage3D(depth)" ); 1133 } 1134 return GL_TRUE; 1135 } 1136 } 1137 1138 /* Level */ 1139 if (level < 0 || level >= ctx->Const.MaxTextureLevels) { 1140 if (!isProxy) { 1141 char message[100]; 1142 sprintf(message, "glTexImage%dD(level)", dimensions); 1143 gl_error(ctx, GL_INVALID_VALUE, message); 1144 } 1145 return GL_TRUE; 1146 } 1147 1148 iformat = _mesa_base_tex_format( ctx, internalFormat ); 1149 if (iformat < 0) { 1150 if (!isProxy) { 1151 char message[100]; 1152 sprintf(message, "glTexImage%dD(internalFormat)", dimensions); 1153 gl_error(ctx, GL_INVALID_VALUE, message); 1154 } 1155 return GL_TRUE; 1156 } 1157 1158 if (!is_compressed_format(ctx, internalFormat)) { 1159 if (!_mesa_is_legal_format_and_type( format, type )) { 1160 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there 1161 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4. 1162 */ 1163 if (!isProxy) { 1164 char message[100]; 1165 sprintf(message, "glTexImage%dD(format or type)", dimensions); 1166 gl_error(ctx, GL_INVALID_OPERATION, message); 1167 } 1168 return GL_TRUE; 1169 } 1170 } 1171 1172 /* if we get here, the parameters are OK */ 1173 return GL_FALSE; 1174} 1175 1176 1177 1178/* 1179 * Test glTexSubImage[123]D() parameters for errors. 1180 * Input: 1181 * dimensions - must be 1 or 2 or 3 1182 * Return: GL_TRUE = an error was detected, GL_FALSE = no errors 1183 */ 1184static GLboolean 1185subtexture_error_check( GLcontext *ctx, GLuint dimensions, 1186 GLenum target, GLint level, 1187 GLint xoffset, GLint yoffset, GLint zoffset, 1188 GLint width, GLint height, GLint depth, 1189 GLenum format, GLenum type ) 1190{ 1191 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1192 struct gl_texture_image *destTex; 1193 1194 if (dimensions == 1) { 1195 if (target != GL_TEXTURE_1D) { 1196 gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" ); 1197 return GL_TRUE; 1198 } 1199 } 1200 else if (dimensions == 2) { 1201 if (ctx->Extensions.HaveTextureCubeMap) { 1202 if ((target < GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB || 1203 target > GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) && 1204 target != GL_TEXTURE_2D) { 1205 gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" ); 1206 return GL_TRUE; 1207 } 1208 } 1209 else if (target != GL_TEXTURE_2D) { 1210 gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" ); 1211 return GL_TRUE; 1212 } 1213 } 1214 else if (dimensions == 3) { 1215 if (target != GL_TEXTURE_3D) { 1216 gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" ); 1217 return GL_TRUE; 1218 } 1219 } 1220 else { 1221 gl_problem( ctx, "bad dims in texture_error_check" ); 1222 return GL_TRUE; 1223 } 1224 1225 if (level < 0 || level >= ctx->Const.MaxTextureLevels) { 1226 gl_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level)"); 1227 return GL_TRUE; 1228 } 1229 1230 if (width < 0) { 1231 char message[100]; 1232 sprintf(message, "glTexSubImage%dD(width)", dimensions); 1233 gl_error(ctx, GL_INVALID_VALUE, message); 1234 return GL_TRUE; 1235 } 1236 if (height < 0 && dimensions > 1) { 1237 char message[100]; 1238 sprintf(message, "glTexSubImage%dD(height)", dimensions); 1239 gl_error(ctx, GL_INVALID_VALUE, message); 1240 return GL_TRUE; 1241 } 1242 if (depth < 0 && dimensions > 2) { 1243 char message[100]; 1244 sprintf(message, "glTexSubImage%dD(depth)", dimensions); 1245 gl_error(ctx, GL_INVALID_VALUE, message); 1246 return GL_TRUE; 1247 } 1248 1249 destTex = texUnit->CurrentD[2]->Image[level]; 1250 if (!destTex) { 1251 gl_error(ctx, GL_INVALID_OPERATION, "glTexSubImage2D"); 1252 return GL_TRUE; 1253 } 1254 1255 if (xoffset < -((GLint)destTex->Border)) { 1256 gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage1/2/3D(xoffset)"); 1257 return GL_TRUE; 1258 } 1259 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { 1260 gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage1/2/3D(xoffset+width)"); 1261 return GL_TRUE; 1262 } 1263 if (dimensions > 1) { 1264 if (yoffset < -((GLint)destTex->Border)) { 1265 gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage2/3D(yoffset)"); 1266 return GL_TRUE; 1267 } 1268 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) { 1269 gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage2/3D(yoffset+height)"); 1270 return GL_TRUE; 1271 } 1272 } 1273 if (dimensions > 2) { 1274 if (zoffset < -((GLint)destTex->Border)) { 1275 gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); 1276 return GL_TRUE; 1277 } 1278 if (zoffset + depth > (GLint) (destTex->Depth+destTex->Border)) { 1279 gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); 1280 return GL_TRUE; 1281 } 1282 } 1283 1284 if (!is_compressed_format(ctx, destTex->IntFormat)) { 1285 if (!_mesa_is_legal_format_and_type(format, type)) { 1286 char message[100]; 1287 sprintf(message, "glTexSubImage%dD(format or type)", dimensions); 1288 gl_error(ctx, GL_INVALID_ENUM, message); 1289 return GL_TRUE; 1290 } 1291 } 1292 1293 return GL_FALSE; 1294} 1295 1296 1297/* 1298 * Test glCopyTexImage[12]D() parameters for errors. 1299 * Input: dimensions - must be 1 or 2 or 3 1300 * Return: GL_TRUE = an error was detected, GL_FALSE = no errors 1301 */ 1302static GLboolean 1303copytexture_error_check( GLcontext *ctx, GLuint dimensions, 1304 GLenum target, GLint level, GLint internalFormat, 1305 GLint width, GLint height, GLint border ) 1306{ 1307 GLint iformat; 1308 1309 if (dimensions == 1) { 1310 if (target != GL_TEXTURE_1D) { 1311 gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" ); 1312 return GL_TRUE; 1313 } 1314 } 1315 else if (dimensions == 2) { 1316 if (ctx->Extensions.HaveTextureCubeMap) { 1317 if ((target < GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB || 1318 target > GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) && 1319 target != GL_TEXTURE_2D) { 1320 gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" ); 1321 return GL_TRUE; 1322 } 1323 } 1324 else if (target != GL_TEXTURE_2D) { 1325 gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" ); 1326 return GL_TRUE; 1327 } 1328 } 1329 1330 /* Border */ 1331 if (border!=0 && border!=1) { 1332 char message[100]; 1333 sprintf(message, "glCopyTexImage%dD(border)", dimensions); 1334 gl_error(ctx, GL_INVALID_VALUE, message); 1335 return GL_TRUE; 1336 } 1337 1338 /* Width */ 1339 if (width < 2 * border || width > 2 + ctx->Const.MaxTextureSize 1340 || logbase2( width - 2 * border ) < 0) { 1341 char message[100]; 1342 sprintf(message, "glCopyTexImage%dD(width)", dimensions); 1343 gl_error(ctx, GL_INVALID_VALUE, message); 1344 return GL_TRUE; 1345 } 1346 1347 /* Height */ 1348 if (dimensions >= 2) { 1349 if (height < 2 * border || height > 2 + ctx->Const.MaxTextureSize 1350 || logbase2( height - 2 * border ) < 0) { 1351 char message[100]; 1352 sprintf(message, "glCopyTexImage%dD(height)", dimensions); 1353 gl_error(ctx, GL_INVALID_VALUE, message); 1354 return GL_TRUE; 1355 } 1356 } 1357 1358 /* For cube map, width must equal height */ 1359 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 1360 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { 1361 if (width != height) { 1362 gl_error(ctx, GL_INVALID_VALUE, "glCopyTexImage2D(width != height)"); 1363 return GL_TRUE; 1364 } 1365 } 1366 1367 /* Level */ 1368 if (level<0 || level>=ctx->Const.MaxTextureLevels) { 1369 char message[100]; 1370 sprintf(message, "glCopyTexImage%dD(level)", dimensions); 1371 gl_error(ctx, GL_INVALID_VALUE, message); 1372 return GL_TRUE; 1373 } 1374 1375 iformat = _mesa_base_tex_format( ctx, internalFormat ); 1376 if (iformat < 0) { 1377 char message[100]; 1378 sprintf(message, "glCopyTexImage%dD(internalFormat)", dimensions); 1379 gl_error(ctx, GL_INVALID_VALUE, message); 1380 return GL_TRUE; 1381 } 1382 1383 /* if we get here, the parameters are OK */ 1384 return GL_FALSE; 1385} 1386 1387 1388static GLboolean 1389copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions, 1390 GLenum target, GLint level, 1391 GLint xoffset, GLint yoffset, GLint zoffset, 1392 GLsizei width, GLsizei height ) 1393{ 1394 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1395 struct gl_texture_image *teximage; 1396 1397 if (dimensions == 1) { 1398 if (target != GL_TEXTURE_1D) { 1399 gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" ); 1400 return GL_TRUE; 1401 } 1402 } 1403 else if (dimensions == 2) { 1404 if (ctx->Extensions.HaveTextureCubeMap) { 1405 if ((target < GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB || 1406 target > GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) && 1407 target != GL_TEXTURE_2D) { 1408 gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" ); 1409 return GL_TRUE; 1410 } 1411 } 1412 else if (target != GL_TEXTURE_2D) { 1413 gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" ); 1414 return GL_TRUE; 1415 } 1416 } 1417 else if (dimensions == 3) { 1418 if (target != GL_TEXTURE_3D) { 1419 gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" ); 1420 return GL_TRUE; 1421 } 1422 } 1423 1424 if (level < 0 || level >= ctx->Const.MaxTextureLevels) { 1425 char message[100]; 1426 sprintf(message, "glCopyTexSubImage%dD(level)", dimensions); 1427 gl_error(ctx, GL_INVALID_VALUE, message); 1428 return GL_TRUE; 1429 } 1430 1431 if (width < 0) { 1432 char message[100]; 1433 sprintf(message, "glCopyTexSubImage%dD(width)", dimensions ); 1434 gl_error(ctx, GL_INVALID_VALUE, message); 1435 return GL_TRUE; 1436 } 1437 if (dimensions > 1 && height < 0) { 1438 char message[100]; 1439 sprintf(message, "glCopyTexSubImage%dD(height)", dimensions ); 1440 gl_error(ctx, GL_INVALID_VALUE, message); 1441 return GL_TRUE; 1442 } 1443 1444 teximage = texUnit->CurrentD[dimensions]->Image[level]; 1445 if (!teximage) { 1446 char message[100]; 1447 sprintf(message, "glCopyTexSubImage%dD(undefined texture)", dimensions); 1448 gl_error(ctx, GL_INVALID_OPERATION, message); 1449 return GL_TRUE; 1450 } 1451 1452 if (xoffset < -((GLint)teximage->Border)) { 1453 char message[100]; 1454 sprintf(message, "glCopyTexSubImage%dD(xoffset)", dimensions); 1455 gl_error(ctx, GL_INVALID_VALUE, message); 1456 return GL_TRUE; 1457 } 1458 if (xoffset+width > (GLint) (teximage->Width+teximage->Border)) { 1459 char message[100]; 1460 sprintf(message, "glCopyTexSubImage%dD(xoffset+width)", dimensions); 1461 gl_error(ctx, GL_INVALID_VALUE, message); 1462 return GL_TRUE; 1463 } 1464 if (dimensions > 1) { 1465 if (yoffset < -((GLint)teximage->Border)) { 1466 char message[100]; 1467 sprintf(message, "glCopyTexSubImage%dD(yoffset)", dimensions); 1468 gl_error(ctx, GL_INVALID_VALUE, message); 1469 return GL_TRUE; 1470 } 1471 /* NOTE: we're adding the border here, not subtracting! */ 1472 if (yoffset+height > (GLint) (teximage->Height+teximage->Border)) { 1473 char message[100]; 1474 sprintf(message, "glCopyTexSubImage%dD(yoffset+height)", dimensions); 1475 gl_error(ctx, GL_INVALID_VALUE, message); 1476 return GL_TRUE; 1477 } 1478 } 1479 1480 if (dimensions > 2) { 1481 if (zoffset < -((GLint)teximage->Border)) { 1482 char message[100]; 1483 sprintf(message, "glCopyTexSubImage%dD(zoffset)", dimensions); 1484 gl_error(ctx, GL_INVALID_VALUE, message); 1485 return GL_TRUE; 1486 } 1487 if (zoffset > (GLint) (teximage->Depth+teximage->Border)) { 1488 char message[100]; 1489 sprintf(message, "glCopyTexSubImage%dD(zoffset+depth)", dimensions); 1490 gl_error(ctx, GL_INVALID_VALUE, message); 1491 return GL_TRUE; 1492 } 1493 } 1494 1495 /* if we get here, the parameters are OK */ 1496 return GL_FALSE; 1497} 1498 1499 1500 1501 1502/* 1503 * Turn generic compressed formats into specific compressed format. 1504 * Some of the compressed formats we don't support, so we 1505 * fall back to the uncompressed format. (See issue 15 of 1506 * the GL_ARB_texture_compression specification.) 1507 */ 1508static GLint 1509get_specific_compressed_tex_format(GLcontext *ctx, 1510 GLint ifmt, GLint numDimensions) 1511{ 1512 char message[100]; 1513 GLint internalFormat = ifmt; 1514 1515 if (ctx->Extensions.HaveTextureCompression 1516 && ctx->Driver.SpecificCompressedTexFormat) { 1517 /* 1518 * First, ask the driver for the specific format. 1519 */ 1520 switch (internalFormat) { 1521 case GL_COMPRESSED_ALPHA_ARB: 1522 case GL_COMPRESSED_LUMINANCE_ARB: 1523 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: 1524 case GL_COMPRESSED_INTENSITY_ARB: 1525 case GL_COMPRESSED_RGB_ARB: 1526 case GL_COMPRESSED_RGBA_ARB: 1527 internalFormat = (*ctx->Driver.SpecificCompressedTexFormat) 1528 (ctx, internalFormat, numDimensions); 1529 /* XXX shouldn't we return now? */ 1530 break; 1531 default: 1532 /* silence compiler warnings */ 1533 ; 1534 } 1535 } 1536 1537 /* 1538 * Now, convert any generic format left to an uncompressed 1539 * specific format. If the driver does not support compression 1540 * of the format, we must drop back to the uncompressed format. 1541 * See issue 15 of the GL_ARB_texture_compression specification. 1542 */ 1543 switch (internalFormat) { 1544 case GL_COMPRESSED_ALPHA_ARB: 1545 if (ctx && !ctx->Extensions.HaveTextureCompression) { 1546 sprintf(message, "glTexImage%dD(internalFormat)", numDimensions); 1547 gl_error(ctx, GL_INVALID_VALUE, message); 1548 return -1; 1549 } 1550 internalFormat = GL_ALPHA; 1551 break; 1552 case GL_COMPRESSED_LUMINANCE_ARB: 1553 if (ctx && !ctx->Extensions.HaveTextureCompression) { 1554 sprintf(message, "glTexImage%dD(internalFormat)", numDimensions); 1555 gl_error(ctx, GL_INVALID_VALUE, message); 1556 return -1; 1557 } 1558 internalFormat = GL_LUMINANCE; 1559 break; 1560 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: 1561 if (ctx && !ctx->Extensions.HaveTextureCompression) { 1562 sprintf(message, "glTexImage%dD(internalFormat)", numDimensions); 1563 gl_error(ctx, GL_INVALID_VALUE, message); 1564 return -1; 1565 } 1566 internalFormat = GL_LUMINANCE_ALPHA; 1567 break; 1568 case GL_COMPRESSED_INTENSITY_ARB: 1569 if (ctx && !ctx->Extensions.HaveTextureCompression) { 1570 sprintf(message, "glTexImage%dD(internalFormat)", numDimensions); 1571 gl_error(ctx, GL_INVALID_VALUE, message); 1572 return -1; 1573 } 1574 internalFormat = GL_INTENSITY; 1575 break; 1576 case GL_COMPRESSED_RGB_ARB: 1577 if (ctx && !ctx->Extensions.HaveTextureCompression) { 1578 sprintf(message, "glTexImage%dD(internalFormat)", numDimensions); 1579 gl_error(ctx, GL_INVALID_VALUE, message); 1580 return -1; 1581 } 1582 internalFormat = GL_RGB; 1583 break; 1584 case GL_COMPRESSED_RGBA_ARB: 1585 if (ctx && !ctx->Extensions.HaveTextureCompression) { 1586 sprintf(message, "glTexImage%dD(internalFormat)", numDimensions); 1587 gl_error(ctx, GL_INVALID_VALUE, message); 1588 return -1; 1589 } 1590 internalFormat = GL_RGBA; 1591 break; 1592 default: 1593 /* silence compiler warning */ 1594 ; 1595 } 1596 return internalFormat; 1597} 1598 1599 1600 1601/* 1602 * Called from the API. Note that width includes the border. 1603 */ 1604void 1605_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, 1606 GLsizei width, GLint border, GLenum format, 1607 GLenum type, const GLvoid *pixels ) 1608{ 1609 GLsizei postConvWidth; 1610 GET_CURRENT_CONTEXT(ctx); 1611 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage1D"); 1612 1613 postConvWidth = width; 1614 adjust_texture_size_for_convolution(ctx, 1, &postConvWidth, NULL); 1615 1616 if (target==GL_TEXTURE_1D) { 1617 struct gl_texture_unit *texUnit; 1618 struct gl_texture_object *texObj; 1619 struct gl_texture_image *texImage; 1620 GLint ifmt; 1621 1622 ifmt = get_specific_compressed_tex_format(ctx, internalFormat, 1); 1623 if (ifmt < 0) { 1624 /* 1625 * The error here is that we were sent a generic compressed 1626 * format, but the extension is not supported. 1627 */ 1628 return; 1629 } 1630 else { 1631 internalFormat = ifmt; 1632 } 1633 1634 if (texture_error_check(ctx, target, level, internalFormat, 1635 format, type, 1, postConvWidth, 1, 1, border)) { 1636 return; /* error in texture image was detected */ 1637 } 1638 1639 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1640 texObj = texUnit->CurrentD[1]; 1641 texImage = texObj->Image[level]; 1642 1643 if (!texImage) { 1644 texImage = _mesa_alloc_texture_image(); 1645 texObj->Image[level] = texImage; 1646 if (!texImage) { 1647 gl_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D"); 1648 return; 1649 } 1650 } 1651 else if (texImage->Data) { 1652 FREE(texImage->Data); 1653 texImage->Data = NULL; 1654 } 1655 1656 /* setup the teximage struct's fields */ 1657 init_texture_image(ctx, texImage, postConvWidth, 1, 1, border, internalFormat); 1658 1659 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 1660 _mesa_update_image_transfer_state(ctx); 1661 1662 /* process the texture image */ 1663 if (pixels) { 1664 GLboolean retain = GL_TRUE; 1665 GLboolean success = GL_FALSE; 1666 if (!ctx->ImageTransferState && ctx->Driver.TexImage1D) { 1667 /* let device driver try to use raw image */ 1668 success = (*ctx->Driver.TexImage1D)( ctx, target, level, format, 1669 type, pixels, &ctx->Unpack, 1670 texObj, texImage, &retain); 1671 } 1672 if (retain || !success) { 1673 /* make internal copy of the texture image */ 1674 make_texture_image(ctx, 1, texImage, width, 1, 1, 1675 format, type, pixels, &ctx->Unpack); 1676 if (!success && ctx->Driver.TexImage1D) { 1677 /* let device driver try to use unpacked image */ 1678 (*ctx->Driver.TexImage1D)( ctx, target, level, texImage->Format, 1679 GL_UNSIGNED_BYTE, texImage->Data, 1680 &_mesa_native_packing, 1681 texObj, texImage, &retain); 1682 } 1683 } 1684 if (!retain && texImage->Data) { 1685 FREE(texImage->Data); 1686 texImage->Data = NULL; 1687 } 1688 } 1689 else { 1690 make_null_texture(texImage); 1691 if (ctx->Driver.TexImage1D) { 1692 GLboolean retain; 1693 (*ctx->Driver.TexImage1D)( ctx, target, level, texImage->Format, 1694 GL_UNSIGNED_BYTE, texImage->Data, 1695 &_mesa_native_packing, 1696 texObj, texImage, &retain); 1697 } 1698 } 1699 1700 /* state update */ 1701 gl_put_texobj_on_dirty_list( ctx, texObj ); 1702 ctx->NewState |= NEW_TEXTURING; 1703 } 1704 else if (target==GL_PROXY_TEXTURE_1D) { 1705 /* Proxy texture: check for errors and update proxy state */ 1706 if (texture_error_check(ctx, target, level, internalFormat, 1707 format, type, 1, postConvWidth, 1, 1, border)) { 1708 /* if error, clear all proxy texture image parameters */ 1709 if (level>=0 && level<ctx->Const.MaxTextureLevels) { 1710 clear_proxy_teximage(ctx->Texture.Proxy1D->Image[level]); 1711 } 1712 } 1713 else { 1714 /* if no error, update proxy texture image parameters */ 1715 init_texture_image(ctx, ctx->Texture.Proxy1D->Image[level], 1716 width, 1, 1, border, internalFormat); 1717 } 1718 } 1719 else { 1720 gl_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" ); 1721 return; 1722 } 1723} 1724 1725 1726void 1727_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, 1728 GLsizei width, GLsizei height, GLint border, 1729 GLenum format, GLenum type, 1730 const GLvoid *pixels ) 1731{ 1732 GLsizei postConvWidth, postConvHeight; 1733 GET_CURRENT_CONTEXT(ctx); 1734 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage2D"); 1735 1736 postConvWidth = width; 1737 postConvHeight = height; 1738 adjust_texture_size_for_convolution(ctx, 2, &postConvWidth,&postConvHeight); 1739 1740 if (target==GL_TEXTURE_2D || 1741 (ctx->Extensions.HaveTextureCubeMap && 1742 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 1743 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) { 1744 struct gl_texture_unit *texUnit; 1745 struct gl_texture_object *texObj; 1746 struct gl_texture_image *texImage; 1747 GLint ifmt; 1748 1749 ifmt = get_specific_compressed_tex_format(ctx, internalFormat, 2); 1750 if (ifmt < 0) { 1751 /* 1752 * The error here is that we were sent a generic compressed 1753 * format, but the extension is not supported. 1754 */ 1755 return; 1756 } 1757 else { 1758 internalFormat = ifmt; 1759 } 1760 1761 if (texture_error_check(ctx, target, level, internalFormat, 1762 format, type, 2, postConvWidth, postConvHeight, 1763 1, border)) { 1764 return; /* error in texture image was detected */ 1765 } 1766 1767 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1768 texObj = _mesa_select_tex_object(ctx, texUnit, target); 1769 texImage = _mesa_select_tex_image(ctx, texUnit, target, level); 1770 1771 if (!texImage) { 1772 texImage = _mesa_alloc_texture_image(); 1773 set_tex_image(texObj, target, level, texImage); 1774 /*texObj->Image[level] = texImage;*/ 1775 if (!texImage) { 1776 gl_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); 1777 return; 1778 } 1779 } 1780 else if (texImage->Data) { 1781 FREE(texImage->Data); 1782 texImage->Data = NULL; 1783 } 1784 1785 /* setup the teximage struct's fields */ 1786 init_texture_image(ctx, texImage, postConvWidth, postConvHeight, 1787 1, border, internalFormat); 1788 1789 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 1790 _mesa_update_image_transfer_state(ctx); 1791 1792 /* process the texture image */ 1793 if (pixels) { 1794 GLboolean retain = GL_TRUE; 1795 GLboolean success = GL_FALSE; 1796 if (!ctx->ImageTransferState && ctx->Driver.TexImage2D) { 1797 /* let device driver try to use raw image */ 1798 success = (*ctx->Driver.TexImage2D)( ctx, target, level, format, 1799 type, pixels, &ctx->Unpack, 1800 texObj, texImage, &retain); 1801 } 1802 if (retain || !success) { 1803 /* make internal copy of the texture image */ 1804 make_texture_image(ctx, 2, texImage, width, height, 1, 1805 format, type, pixels, &ctx->Unpack); 1806 if (!success && ctx->Driver.TexImage2D) { 1807 /* let device driver try to use unpacked image */ 1808 (*ctx->Driver.TexImage2D)( ctx, target, level, texImage->Format, 1809 GL_UNSIGNED_BYTE, texImage->Data, 1810 &_mesa_native_packing, 1811 texObj, texImage, &retain); 1812 } 1813 } 1814 if (!retain && texImage->Data) { 1815 FREE(texImage->Data); 1816 texImage->Data = NULL; 1817 } 1818 } 1819 else { 1820 make_null_texture(texImage); 1821 if (ctx->Driver.TexImage2D) { 1822 GLboolean retain; 1823 (*ctx->Driver.TexImage2D)( ctx, target, level, texImage->Format, 1824 GL_UNSIGNED_BYTE, texImage->Data, 1825 &_mesa_native_packing, 1826 texObj, texImage, &retain); 1827 } 1828 } 1829 1830#define OLD_DD_TEXTURE 1831#ifdef OLD_DD_TEXTURE 1832 /* XXX this will be removed in the future */ 1833 if (ctx->Driver.TexImage) { 1834 (*ctx->Driver.TexImage)( ctx, target, texObj, level, internalFormat, 1835 texImage ); 1836 } 1837#endif 1838 1839 /* state update */ 1840 gl_put_texobj_on_dirty_list( ctx, texObj ); 1841 ctx->NewState |= NEW_TEXTURING; 1842 } 1843 else if (target==GL_PROXY_TEXTURE_2D) { 1844 /* Proxy texture: check for errors and update proxy state */ 1845 if (texture_error_check(ctx, target, level, internalFormat, 1846 format, type, 2, postConvWidth, height, 1, border)) { 1847 /* if error, clear all proxy texture image parameters */ 1848 if (level>=0 && level<ctx->Const.MaxTextureLevels) { 1849 clear_proxy_teximage(ctx->Texture.Proxy2D->Image[level]); 1850 } 1851 } 1852 else { 1853 /* if no error, update proxy texture image parameters */ 1854 init_texture_image(ctx, 1855 ctx->Texture.Proxy2D->Image[level], 1856 width, height, 1, border, internalFormat); 1857 } 1858 } 1859 else { 1860 gl_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" ); 1861 return; 1862 } 1863} 1864 1865 1866 1867/* 1868 * Called by the API or display list executor. 1869 * Note that width and height include the border. 1870 */ 1871void 1872_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, 1873 GLsizei width, GLsizei height, GLsizei depth, 1874 GLint border, GLenum format, GLenum type, 1875 const GLvoid *pixels ) 1876{ 1877 GET_CURRENT_CONTEXT(ctx); 1878 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage3D"); 1879 1880 if (target==GL_TEXTURE_3D_EXT) { 1881 struct gl_texture_unit *texUnit; 1882 struct gl_texture_object *texObj; 1883 struct gl_texture_image *texImage; 1884 GLint ifmt; 1885 1886 ifmt = get_specific_compressed_tex_format(ctx, internalFormat, 3); 1887 if (ifmt < 0) { 1888 /* 1889 * The error here is that we were sent a generic compressed 1890 * format, but the extension is not supported. 1891 */ 1892 return; 1893 } 1894 else { 1895 internalFormat = ifmt; 1896 } 1897 1898 if (texture_error_check(ctx, target, level, internalFormat, 1899 format, type, 3, width, height, depth, border)) { 1900 return; /* error in texture image was detected */ 1901 } 1902 1903 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1904 texObj = texUnit->CurrentD[3]; 1905 texImage = texObj->Image[level]; 1906 1907 if (!texImage) { 1908 texImage = _mesa_alloc_texture_image(); 1909 texObj->Image[level] = texImage; 1910 if (!texImage) { 1911 gl_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D"); 1912 return; 1913 } 1914 } 1915 else if (texImage->Data) { 1916 FREE(texImage->Data); 1917 texImage->Data = NULL; 1918 } 1919 1920 /* setup the teximage struct's fields */ 1921 init_texture_image(ctx, texImage, width, height, depth, 1922 border, internalFormat); 1923 1924 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 1925 _mesa_update_image_transfer_state(ctx); 1926 1927 /* process the texture image */ 1928 if (pixels) { 1929 GLboolean retain = GL_TRUE; 1930 GLboolean success = GL_FALSE; 1931 if (!ctx->ImageTransferState && ctx->Driver.TexImage3D) { 1932 /* let device driver try to use raw image */ 1933 success = (*ctx->Driver.TexImage3D)( ctx, target, level, format, 1934 type, pixels, &ctx->Unpack, 1935 texObj, texImage, &retain); 1936 } 1937 if (retain || !success) { 1938 /* make internal copy of the texture image */ 1939 make_texture_image(ctx, 3, texImage, width, height, depth, 1940 format, type, pixels, &ctx->Unpack); 1941 if (!success && ctx->Driver.TexImage3D) { 1942 /* let device driver try to use unpacked image */ 1943 (*ctx->Driver.TexImage3D)( ctx, target, level, texImage->Format, 1944 GL_UNSIGNED_BYTE, texImage->Data, 1945 &_mesa_native_packing, 1946 texObj, texImage, &retain); 1947 } 1948 } 1949 if (!retain && texImage->Data) { 1950 FREE(texImage->Data); 1951 texImage->Data = NULL; 1952 } 1953 } 1954 else { 1955 make_null_texture(texImage); 1956 if (ctx->Driver.TexImage3D) { 1957 GLboolean retain; 1958 (*ctx->Driver.TexImage3D)( ctx, target, level, texImage->Format, 1959 GL_UNSIGNED_BYTE, texImage->Data, 1960 &_mesa_native_packing, 1961 texObj, texImage, &retain); 1962 } 1963 } 1964 1965 /* state update */ 1966 gl_put_texobj_on_dirty_list( ctx, texObj ); 1967 ctx->NewState |= NEW_TEXTURING; 1968 } 1969 else if (target==GL_PROXY_TEXTURE_3D) { 1970 /* Proxy texture: check for errors and update proxy state */ 1971 if (texture_error_check(ctx, target, level, internalFormat, 1972 format, type, 3, width, height, depth, border)) { 1973 /* if error, clear all proxy texture image parameters */ 1974 if (level>=0 && level<ctx->Const.MaxTextureLevels) { 1975 clear_proxy_teximage(ctx->Texture.Proxy3D->Image[level]); 1976 } 1977 } 1978 else { 1979 /* if no error, update proxy texture image parameters */ 1980 init_texture_image(ctx, ctx->Texture.Proxy3D->Image[level], 1981 width, height, depth, border, internalFormat); 1982 } 1983 } 1984 else { 1985 gl_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" ); 1986 return; 1987 } 1988} 1989 1990 1991void 1992_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, 1993 GLsizei width, GLsizei height, GLsizei depth, 1994 GLint border, GLenum format, GLenum type, 1995 const GLvoid *pixels ) 1996{ 1997 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, 1998 depth, border, format, type, pixels); 1999} 2000 2001 2002/* 2003 * Fetch a texture image from the device driver. 2004 * Store the results in the given texture object at the given mipmap level. 2005 */ 2006void 2007_mesa_get_teximage_from_driver( GLcontext *ctx, GLenum target, GLint level, 2008 const struct gl_texture_object *texObj ) 2009{ 2010 GLvoid *image; 2011 GLenum imgFormat, imgType; 2012 GLboolean freeImage; 2013 struct gl_texture_image *texImage; 2014 GLint destComponents, numPixels, srcBytesPerTexel; 2015 2016 if (!ctx->Driver.GetTexImage) 2017 return; 2018 2019 image = (*ctx->Driver.GetTexImage)( ctx, target, level, texObj, 2020 &imgFormat, &imgType, &freeImage); 2021 if (!image) 2022 return; 2023 2024 texImage = texObj->Image[level]; 2025 ASSERT(texImage); 2026 if (!texImage) 2027 return; 2028 2029 destComponents = components_in_intformat(texImage->Format); 2030 assert(destComponents > 0); 2031 numPixels = texImage->Width * texImage->Height * texImage->Depth; 2032 assert(numPixels > 0); 2033 srcBytesPerTexel = _mesa_bytes_per_pixel(imgFormat, imgType); 2034 assert(srcBytesPerTexel > 0); 2035 2036 if (!texImage->Data) { 2037 /* Allocate memory for the texture image data */ 2038 texImage->Data = (GLubyte *) MALLOC(numPixels * destComponents + EXTRA_BYTE); 2039 } 2040 2041 if (imgFormat == texImage->Format && imgType == GL_UNSIGNED_BYTE) { 2042 /* We got lucky! The driver's format and type match Mesa's format. */ 2043 if (texImage->Data) { 2044 MEMCPY(texImage->Data, image, numPixels * destComponents); 2045 } 2046 } 2047 else { 2048 /* Convert the texture image from the driver's format to Mesa's 2049 * internal format. 2050 */ 2051 const GLint width = texImage->Width; 2052 const GLint height = texImage->Height; 2053 const GLint depth = texImage->Depth; 2054 const GLint destBytesPerRow = width * destComponents * sizeof(GLchan); 2055 const GLint srcBytesPerRow = width * srcBytesPerTexel; 2056 const GLenum dstType = GL_UNSIGNED_BYTE; 2057 const GLenum dstFormat = texImage->Format; 2058 const GLubyte *srcPtr = (const GLubyte *) image; 2059 GLubyte *destPtr = texImage->Data; 2060 2061 if (texImage->Format == GL_COLOR_INDEX) { 2062 /* color index texture */ 2063 GLint img, row; 2064 assert(imgFormat == GL_COLOR_INDEX); 2065 for (img = 0; img < depth; img++) { 2066 for (row = 0; row < height; row++) { 2067 _mesa_unpack_index_span(ctx, width, dstType, destPtr, 2068 imgType, srcPtr, &_mesa_native_packing, GL_FALSE); 2069 destPtr += destBytesPerRow; 2070 srcPtr += srcBytesPerRow; 2071 } 2072 } 2073 } 2074 else { 2075 /* color texture */ 2076 GLint img, row; 2077 for (img = 0; img < depth; img++) { 2078 for (row = 0; row < height; row++) { 2079 _mesa_unpack_ubyte_color_span(ctx, width, dstFormat, destPtr, 2080 imgFormat, imgType, srcPtr, &_mesa_native_packing, GL_FALSE); 2081 destPtr += destBytesPerRow; 2082 srcPtr += srcBytesPerRow; 2083 } 2084 } 2085 } 2086 } 2087 2088 if (freeImage) 2089 FREE(image); 2090} 2091 2092 2093void 2094_mesa_GetTexImage( GLenum target, GLint level, GLenum format, 2095 GLenum type, GLvoid *pixels ) 2096{ 2097 GET_CURRENT_CONTEXT(ctx); 2098 const struct gl_texture_unit *texUnit; 2099 const struct gl_texture_object *texObj; 2100 struct gl_texture_image *texImage; 2101 GLboolean discardImage; 2102 2103 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexImage"); 2104 2105 if (level < 0 || level >= ctx->Const.MaxTextureLevels) { 2106 gl_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" ); 2107 return; 2108 } 2109 2110 if (_mesa_sizeof_type(type) <= 0) { 2111 gl_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" ); 2112 return; 2113 } 2114 2115 if (_mesa_components_in_format(format) <= 0) { 2116 gl_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" ); 2117 return; 2118 } 2119 2120 if (!pixels) 2121 return; 2122 2123 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]); 2124 texObj = _mesa_select_tex_object(ctx, texUnit, target); 2125 texImage = _mesa_select_tex_image(ctx, texUnit, target, level); 2126 if (!texObj || !texImage || 2127 target == GL_PROXY_TEXTURE_1D || 2128 target == GL_PROXY_TEXTURE_2D || 2129 target == GL_PROXY_TEXTURE_3D) { 2130 gl_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)"); 2131 return; 2132 } 2133 2134 if (!texImage) { 2135 /* invalid mipmap level */ 2136 return; 2137 } 2138 2139 if (!texImage->Data) { 2140 /* try to get the texture image from the device driver */ 2141 _mesa_get_teximage_from_driver(ctx, target, level, texObj); 2142 discardImage = GL_TRUE; 2143 } 2144 else { 2145 discardImage = GL_FALSE; 2146 } 2147 2148 if (texImage->Data) { 2149 GLint width = texImage->Width; 2150 GLint height = texImage->Height; 2151 GLint row; 2152 2153 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2154 _mesa_update_image_transfer_state(ctx); 2155 2156 for (row = 0; row < height; row++) { 2157 /* compute destination address in client memory */ 2158 GLvoid *dest = _mesa_image_address( &ctx->Unpack, pixels, 2159 width, height, 2160 format, type, 0, row, 0); 2161 2162 assert(dest); 2163 if (texImage->Format == GL_RGBA) { 2164 const GLubyte *src = texImage->Data + row * width * 4 * sizeof(GLubyte); 2165 /* XXX convolution */ 2166 _mesa_pack_rgba_span( ctx, width, (CONST GLubyte (*)[4]) src, 2167 format, type, dest, &ctx->Pack, 2168 ctx->ImageTransferState ); 2169 } 2170 else { 2171 /* fetch RGBA row from texture image then pack it in client mem */ 2172 GLubyte rgba[MAX_WIDTH][4]; 2173 GLint i; 2174 const GLubyte *src; 2175 switch (texImage->Format) { 2176 case GL_ALPHA: 2177 src = texImage->Data + row * width * sizeof(GLubyte); 2178 for (i = 0; i < width; i++) { 2179 rgba[i][RCOMP] = 255; 2180 rgba[i][GCOMP] = 255; 2181 rgba[i][BCOMP] = 255; 2182 rgba[i][ACOMP] = src[i]; 2183 } 2184 break; 2185 case GL_LUMINANCE: 2186 src = texImage->Data + row * width * sizeof(GLubyte); 2187 for (i = 0; i < width; i++) { 2188 rgba[i][RCOMP] = src[i]; 2189 rgba[i][GCOMP] = src[i]; 2190 rgba[i][BCOMP] = src[i]; 2191 rgba[i][ACOMP] = 255; 2192 } 2193 break; 2194 case GL_LUMINANCE_ALPHA: 2195 src = texImage->Data + row * 2 * width * sizeof(GLubyte); 2196 for (i = 0; i < width; i++) { 2197 rgba[i][RCOMP] = src[i*2+0]; 2198 rgba[i][GCOMP] = src[i*2+0]; 2199 rgba[i][BCOMP] = src[i*2+0]; 2200 rgba[i][ACOMP] = src[i*2+1]; 2201 } 2202 break; 2203 case GL_INTENSITY: 2204 src = texImage->Data + row * width * sizeof(GLubyte); 2205 for (i = 0; i < width; i++) { 2206 rgba[i][RCOMP] = src[i]; 2207 rgba[i][GCOMP] = src[i]; 2208 rgba[i][BCOMP] = src[i]; 2209 rgba[i][ACOMP] = 255; 2210 } 2211 break; 2212 case GL_RGB: 2213 src = texImage->Data + row * 3 * width * sizeof(GLubyte); 2214 for (i = 0; i < width; i++) { 2215 rgba[i][RCOMP] = src[i*3+0]; 2216 rgba[i][GCOMP] = src[i*3+1]; 2217 rgba[i][BCOMP] = src[i*3+2]; 2218 rgba[i][ACOMP] = 255; 2219 } 2220 break; 2221 case GL_RGBA: 2222 /* this special case should have been handled above! */ 2223 gl_problem( ctx, "error 1 in gl_GetTexImage" ); 2224 break; 2225 case GL_COLOR_INDEX: 2226 gl_problem( ctx, "GL_COLOR_INDEX not implemented in gl_GetTexImage" ); 2227 break; 2228 default: 2229 gl_problem( ctx, "bad format in gl_GetTexImage" ); 2230 } 2231 /* XXX convolution */ 2232 _mesa_pack_rgba_span( ctx, width, (const GLubyte (*)[4])rgba, 2233 format, type, dest, &ctx->Pack, 2234 ctx->ImageTransferState ); 2235 } 2236 } 2237 2238 /* if we got the teximage from the device driver we'll discard it now */ 2239 if (discardImage) { 2240 FREE(texImage->Data); 2241 texImage->Data = NULL; 2242 } 2243 } 2244} 2245 2246 2247 2248void 2249_mesa_TexSubImage1D( GLenum target, GLint level, 2250 GLint xoffset, GLsizei width, 2251 GLenum format, GLenum type, 2252 const GLvoid *pixels ) 2253{ 2254 GET_CURRENT_CONTEXT(ctx); 2255 struct gl_texture_unit *texUnit; 2256 struct gl_texture_object *texObj; 2257 struct gl_texture_image *texImage; 2258 GLboolean success = GL_FALSE; 2259 GLsizei postConvWidth; 2260 2261 postConvWidth = width; 2262 adjust_texture_size_for_convolution(ctx, 1, &postConvWidth, NULL); 2263 2264 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0, 2265 postConvWidth, 1, 1, format, type)) { 2266 return; /* error was detected */ 2267 } 2268 2269 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 2270 texObj = texUnit->CurrentD[1]; 2271 texImage = texObj->Image[level]; 2272 assert(texImage); 2273 2274 if (width == 0 || !pixels) 2275 return; /* no-op, not an error */ 2276 2277 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2278 _mesa_update_image_transfer_state(ctx); 2279 2280 if (!ctx->ImageTransferState && ctx->Driver.TexSubImage1D) { 2281 success = (*ctx->Driver.TexSubImage1D)( ctx, target, level, xoffset, 2282 width, format, type, pixels, 2283 &ctx->Unpack, texObj, texImage ); 2284 } 2285 if (!success) { 2286 /* XXX if Driver.TexSubImage1D, unpack image and try again? */ 2287 GLboolean retain = GL_TRUE; 2288 if (!texImage->Data) { 2289 _mesa_get_teximage_from_driver( ctx, target, level, texObj ); 2290 if (!texImage->Data) { 2291 make_null_texture(texImage); 2292 } 2293 if (!texImage->Data) 2294 return; /* we're really out of luck! */ 2295 } 2296 2297 fill_texture_image(ctx, 1, texImage->Format, texImage->Data, 2298 width, 1, 1, xoffset, 0, 0, /* size and offsets */ 2299 0, 0, /* strides */ 2300 format, type, pixels, &ctx->Unpack); 2301 2302 if (ctx->Driver.TexImage1D) { 2303 (*ctx->Driver.TexImage1D)( ctx, target, level, texImage->Format, 2304 GL_UNSIGNED_BYTE, texImage->Data, 2305 &_mesa_native_packing, texObj, texImage, 2306 &retain ); 2307 } 2308 2309 if (!retain && texImage->Data) { 2310 FREE(texImage->Data); 2311 texImage->Data = NULL; 2312 } 2313 } 2314} 2315 2316 2317void 2318_mesa_TexSubImage2D( GLenum target, GLint level, 2319 GLint xoffset, GLint yoffset, 2320 GLsizei width, GLsizei height, 2321 GLenum format, GLenum type, 2322 const GLvoid *pixels ) 2323{ 2324 GET_CURRENT_CONTEXT(ctx); 2325 struct gl_texture_unit *texUnit; 2326 struct gl_texture_object *texObj; 2327 struct gl_texture_image *texImage; 2328 GLboolean success = GL_FALSE; 2329 GLsizei postConvWidth, postConvHeight; 2330 2331 postConvWidth = width; 2332 postConvHeight = height; 2333 adjust_texture_size_for_convolution(ctx, 2, &postConvWidth,&postConvHeight); 2334 2335 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0, 2336 postConvWidth, postConvHeight, 1, format, type)) { 2337 return; /* error was detected */ 2338 } 2339 2340 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 2341 texObj = _mesa_select_tex_object(ctx, texUnit, target); 2342 texImage = texObj->Image[level]; 2343 assert(texImage); 2344 2345 if (width == 0 || height == 0 || !pixels) 2346 return; /* no-op, not an error */ 2347 2348 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2349 _mesa_update_image_transfer_state(ctx); 2350 2351 if (!ctx->ImageTransferState && ctx->Driver.TexSubImage2D) { 2352 success = (*ctx->Driver.TexSubImage2D)( ctx, target, level, xoffset, 2353 yoffset, width, height, format, type, 2354 pixels, &ctx->Unpack, texObj, texImage ); 2355 } 2356 if (!success) { 2357 /* XXX if Driver.TexSubImage2D, unpack image and try again? */ 2358 const GLint texComps = components_in_intformat(texImage->Format); 2359 const GLint texRowStride = texImage->Width * texComps * sizeof(GLubyte); 2360 GLboolean retain = GL_TRUE; 2361 2362 if (!texImage->Data) { 2363 _mesa_get_teximage_from_driver( ctx, target, level, texObj ); 2364 if (!texImage->Data) { 2365 make_null_texture(texImage); 2366 } 2367 if (!texImage->Data) 2368 return; /* we're really out of luck! */ 2369 } 2370 2371 fill_texture_image(ctx, 2, texImage->Format, texImage->Data, 2372 width, height, 1, xoffset, yoffset, 0, 2373 texRowStride, 0, 2374 format, type, pixels, &ctx->Unpack); 2375 2376 if (ctx->Driver.TexImage2D) { 2377 (*ctx->Driver.TexImage2D)(ctx, target, level, texImage->Format, 2378 GL_UNSIGNED_BYTE, texImage->Data, 2379 &_mesa_native_packing, texObj, texImage, 2380 &retain); 2381 } 2382 2383 if (!retain && texImage->Data) { 2384 FREE(texImage->Data); 2385 texImage->Data = NULL; 2386 } 2387 2388#ifdef OLD_DD_TEXTURE 2389 /* XXX this will be removed in the future */ 2390 if (ctx->Driver.TexSubImage) { 2391 (*ctx->Driver.TexSubImage)(ctx, target, texObj, level, 2392 xoffset, yoffset, width, height, 2393 texImage->IntFormat, texImage); 2394 } 2395 else if (ctx->Driver.TexImage) { 2396 (*ctx->Driver.TexImage)(ctx, GL_TEXTURE_2D, texObj, 2397 level, texImage->IntFormat, texImage ); 2398 } 2399#endif 2400 } 2401} 2402 2403 2404 2405void 2406_mesa_TexSubImage3D( GLenum target, GLint level, 2407 GLint xoffset, GLint yoffset, GLint zoffset, 2408 GLsizei width, GLsizei height, GLsizei depth, 2409 GLenum format, GLenum type, 2410 const GLvoid *pixels ) 2411{ 2412 GET_CURRENT_CONTEXT(ctx); 2413 struct gl_texture_unit *texUnit; 2414 struct gl_texture_object *texObj; 2415 struct gl_texture_image *texImage; 2416 GLboolean success = GL_FALSE; 2417 2418 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset, 2419 width, height, depth, format, type)) { 2420 return; /* error was detected */ 2421 } 2422 2423 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 2424 texObj = texUnit->CurrentD[3]; 2425 texImage = texObj->Image[level]; 2426 assert(texImage); 2427 2428 if (width == 0 || height == 0 || height == 0 || !pixels) 2429 return; /* no-op, not an error */ 2430 2431 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2432 _mesa_update_image_transfer_state(ctx); 2433 2434 if (!ctx->ImageTransferState && ctx->Driver.TexSubImage3D) { 2435 success = (*ctx->Driver.TexSubImage3D)( ctx, target, level, xoffset, 2436 yoffset, zoffset, width, height, depth, format, 2437 type, pixels, &ctx->Unpack, texObj, texImage ); 2438 } 2439 if (!success) { 2440 /* XXX if Driver.TexSubImage3D, unpack image and try again? */ 2441 const GLint texComps = components_in_intformat(texImage->Format); 2442 const GLint texRowStride = texImage->Width * texComps * sizeof(GLubyte); 2443 const GLint texImgStride = texRowStride * texImage->Height; 2444 GLboolean retain = GL_TRUE; 2445 2446 if (!texImage->Data) { 2447 _mesa_get_teximage_from_driver( ctx, target, level, texObj ); 2448 if (!texImage->Data) { 2449 make_null_texture(texImage); 2450 } 2451 if (!texImage->Data) 2452 return; /* we're really out of luck! */ 2453 } 2454 2455 fill_texture_image(ctx, 3, texImage->Format, texImage->Data, 2456 width, height, depth, xoffset, yoffset, zoffset, 2457 texRowStride, texImgStride, 2458 format, type, pixels, &ctx->Unpack); 2459 2460 if (ctx->Driver.TexImage3D) { 2461 (*ctx->Driver.TexImage3D)(ctx, target, level, texImage->Format, 2462 GL_UNSIGNED_BYTE, texImage->Data, 2463 &_mesa_native_packing, texObj, texImage, 2464 &retain); 2465 } 2466 2467 if (!retain && texImage->Data) { 2468 FREE(texImage->Data); 2469 texImage->Data = NULL; 2470 } 2471 } 2472} 2473 2474 2475 2476/* 2477 * Read an RGBA image from the frame buffer. 2478 * This is used by glCopyTex[Sub]Image[12]D(). 2479 * Input: ctx - the context 2480 * x, y - lower left corner 2481 * width, height - size of region to read 2482 * Return: pointer to block of GL_RGBA, GLubyte data. 2483 */ 2484static GLubyte * 2485read_color_image( GLcontext *ctx, GLint x, GLint y, 2486 GLsizei width, GLsizei height ) 2487{ 2488 GLint stride, i; 2489 GLubyte *image, *dst; 2490 2491 image = (GLubyte *) MALLOC(width * height * 4 * sizeof(GLubyte)); 2492 if (!image) 2493 return NULL; 2494 2495 /* Select buffer to read from */ 2496 (*ctx->Driver.SetReadBuffer)( ctx, ctx->ReadBuffer, 2497 ctx->Pixel.DriverReadBuffer ); 2498 2499 dst = image; 2500 stride = width * 4 * sizeof(GLubyte); 2501 for (i = 0; i < height; i++) { 2502 gl_read_rgba_span( ctx, ctx->ReadBuffer, width, x, y + i, 2503 (GLubyte (*)[4]) dst ); 2504 dst += stride; 2505 } 2506 2507 /* Read from draw buffer (the default) */ 2508 (*ctx->Driver.SetReadBuffer)( ctx, ctx->DrawBuffer, 2509 ctx->Color.DriverDrawBuffer ); 2510 2511 return image; 2512} 2513 2514 2515 2516void 2517_mesa_CopyTexImage1D( GLenum target, GLint level, 2518 GLenum internalFormat, 2519 GLint x, GLint y, 2520 GLsizei width, GLint border ) 2521{ 2522 GET_CURRENT_CONTEXT(ctx); 2523 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexImage1D"); 2524 2525 if (copytexture_error_check(ctx, 1, target, level, internalFormat, 2526 width, 1, border)) 2527 return; 2528 2529 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2530 _mesa_update_image_transfer_state(ctx); 2531 2532 if (ctx->ImageTransferState || !ctx->Driver.CopyTexImage1D 2533 || !(*ctx->Driver.CopyTexImage1D)(ctx, target, level, 2534 internalFormat, x, y, width, border)) { 2535 struct gl_pixelstore_attrib unpackSave; 2536 2537 /* get image from framebuffer */ 2538 GLubyte *image = read_color_image( ctx, x, y, width, 1 ); 2539 if (!image) { 2540 gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D" ); 2541 return; 2542 } 2543 2544 /* call glTexImage1D to redefine the texture */ 2545 unpackSave = ctx->Unpack; 2546 ctx->Unpack = _mesa_native_packing; 2547 (*ctx->Exec->TexImage1D)( target, level, internalFormat, width, 2548 border, GL_RGBA, GL_UNSIGNED_BYTE, image ); 2549 ctx->Unpack = unpackSave; 2550 2551 FREE(image); 2552 } 2553} 2554 2555 2556 2557void 2558_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, 2559 GLint x, GLint y, GLsizei width, GLsizei height, 2560 GLint border ) 2561{ 2562 GET_CURRENT_CONTEXT(ctx); 2563 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexImage2D"); 2564 2565 if (copytexture_error_check(ctx, 2, target, level, internalFormat, 2566 width, height, border)) 2567 return; 2568 2569 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2570 _mesa_update_image_transfer_state(ctx); 2571 2572 if (ctx->ImageTransferState || !ctx->Driver.CopyTexImage2D 2573 || !(*ctx->Driver.CopyTexImage2D)(ctx, target, level, 2574 internalFormat, x, y, width, height, border)) { 2575 struct gl_pixelstore_attrib unpackSave; 2576 2577 /* get image from framebuffer */ 2578 GLubyte *image = read_color_image( ctx, x, y, width, height ); 2579 if (!image) { 2580 gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D" ); 2581 return; 2582 } 2583 2584 /* call glTexImage2D to redefine the texture */ 2585 unpackSave = ctx->Unpack; 2586 ctx->Unpack = _mesa_native_packing; 2587 (ctx->Exec->TexImage2D)( target, level, internalFormat, width, 2588 height, border, GL_RGBA, GL_UNSIGNED_BYTE, image ); 2589 ctx->Unpack = unpackSave; 2590 2591 FREE(image); 2592 } 2593} 2594 2595 2596 2597void 2598_mesa_CopyTexSubImage1D( GLenum target, GLint level, 2599 GLint xoffset, GLint x, GLint y, GLsizei width ) 2600{ 2601 GET_CURRENT_CONTEXT(ctx); 2602 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage1D"); 2603 2604 if (copytexsubimage_error_check(ctx, 1, target, level, 2605 xoffset, 0, 0, width, 1)) 2606 return; 2607 2608 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2609 _mesa_update_image_transfer_state(ctx); 2610 2611 if (ctx->ImageTransferState || !ctx->Driver.CopyTexSubImage1D 2612 || !(*ctx->Driver.CopyTexSubImage1D)(ctx, target, level, 2613 xoffset, x, y, width)) { 2614 struct gl_texture_unit *texUnit; 2615 struct gl_texture_image *teximage; 2616 struct gl_pixelstore_attrib unpackSave; 2617 GLubyte *image; 2618 2619 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 2620 teximage = texUnit->CurrentD[1]->Image[level]; 2621 assert(teximage); 2622 2623 /* get image from frame buffer */ 2624 image = read_color_image(ctx, x, y, width, 1); 2625 if (!image) { 2626 gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage2D" ); 2627 return; 2628 } 2629 2630 /* now call glTexSubImage1D to do the real work */ 2631 unpackSave = ctx->Unpack; 2632 ctx->Unpack = _mesa_native_packing; 2633 _mesa_TexSubImage1D(target, level, xoffset, width, 2634 GL_RGBA, GL_UNSIGNED_BYTE, image); 2635 ctx->Unpack = unpackSave; 2636 2637 FREE(image); 2638 } 2639} 2640 2641 2642 2643void 2644_mesa_CopyTexSubImage2D( GLenum target, GLint level, 2645 GLint xoffset, GLint yoffset, 2646 GLint x, GLint y, GLsizei width, GLsizei height ) 2647{ 2648 GET_CURRENT_CONTEXT(ctx); 2649 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage2D"); 2650 2651 if (copytexsubimage_error_check(ctx, 2, target, level, 2652 xoffset, yoffset, 0, width, height)) 2653 return; 2654 2655 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2656 _mesa_update_image_transfer_state(ctx); 2657 2658 if (ctx->ImageTransferState || !ctx->Driver.CopyTexSubImage2D 2659 || !(*ctx->Driver.CopyTexSubImage2D)(ctx, target, level, 2660 xoffset, yoffset, x, y, width, height )) { 2661 struct gl_texture_unit *texUnit; 2662 struct gl_texture_image *teximage; 2663 struct gl_pixelstore_attrib unpackSave; 2664 GLubyte *image; 2665 2666 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 2667 teximage = texUnit->CurrentD[2]->Image[level]; 2668 assert(teximage); 2669 2670 /* get image from frame buffer */ 2671 image = read_color_image(ctx, x, y, width, height); 2672 if (!image) { 2673 gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage2D" ); 2674 return; 2675 } 2676 2677 /* now call glTexSubImage2D to do the real work */ 2678 unpackSave = ctx->Unpack; 2679 ctx->Unpack = _mesa_native_packing; 2680 _mesa_TexSubImage2D(target, level, xoffset, yoffset, width, height, 2681 GL_RGBA, GL_UNSIGNED_BYTE, image); 2682 ctx->Unpack = unpackSave; 2683 2684 FREE(image); 2685 } 2686} 2687 2688 2689 2690void 2691_mesa_CopyTexSubImage3D( GLenum target, GLint level, 2692 GLint xoffset, GLint yoffset, GLint zoffset, 2693 GLint x, GLint y, GLsizei width, GLsizei height ) 2694{ 2695 GET_CURRENT_CONTEXT(ctx); 2696 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage3D"); 2697 2698 if (copytexsubimage_error_check(ctx, 3, target, level, 2699 xoffset, yoffset, zoffset, width, height)) 2700 return; 2701 2702 if (ctx->ImageTransferState == UPDATE_IMAGE_TRANSFER_STATE) 2703 _mesa_update_image_transfer_state(ctx); 2704 2705 if (ctx->ImageTransferState || !ctx->Driver.CopyTexSubImage3D 2706 || !(*ctx->Driver.CopyTexSubImage3D)(ctx, target, level, 2707 xoffset, yoffset, zoffset, x, y, width, height )) { 2708 struct gl_texture_unit *texUnit; 2709 struct gl_texture_image *teximage; 2710 struct gl_pixelstore_attrib unpackSave; 2711 GLubyte *image; 2712 2713 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 2714 teximage = texUnit->CurrentD[3]->Image[level]; 2715 assert(teximage); 2716 2717 /* get image from frame buffer */ 2718 image = read_color_image(ctx, x, y, width, height); 2719 if (!image) { 2720 gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage2D" ); 2721 return; 2722 } 2723 2724 /* now call glTexSubImage2D to do the real work */ 2725 unpackSave = ctx->Unpack; 2726 ctx->Unpack = _mesa_native_packing; 2727 _mesa_TexSubImage3D(target, level, xoffset, yoffset, zoffset, 2728 width, height, 1, GL_RGBA, GL_UNSIGNED_BYTE, image); 2729 ctx->Unpack = unpackSave; 2730 2731 FREE(image); 2732 } 2733} 2734 2735 2736 2737void 2738_mesa_CompressedTexImage1DARB(GLenum target, GLint level, 2739 GLenum internalFormat, GLsizei width, 2740 GLint border, GLsizei imageSize, 2741 const GLvoid *data) 2742{ 2743 GET_CURRENT_CONTEXT(ctx); 2744 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCompressedTexImage1DARB"); 2745 2746 switch (internalFormat) { 2747 case GL_COMPRESSED_ALPHA_ARB: 2748 case GL_COMPRESSED_LUMINANCE_ARB: 2749 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: 2750 case GL_COMPRESSED_INTENSITY_ARB: 2751 case GL_COMPRESSED_RGB_ARB: 2752 case GL_COMPRESSED_RGBA_ARB: 2753 gl_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1DARB"); 2754 return; 2755 default: 2756 /* silence compiler warning */ 2757 ; 2758 } 2759 2760 if (target == GL_TEXTURE_1D) { 2761 struct gl_texture_unit *texUnit; 2762 struct gl_texture_object *texObj; 2763 struct gl_texture_image *texImage; 2764 GLsizei computedImageSize; 2765 2766 if (texture_error_check(ctx, target, level, internalFormat, 2767 GL_NONE, GL_NONE, 1, width, 1, 1, border)) { 2768 return; /* error in texture image was detected */ 2769 } 2770 2771 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 2772 texObj = texUnit->CurrentD[1]; 2773 texImage = texObj->Image[level]; 2774 2775 if (!texImage) { 2776 texImage = _mesa_alloc_texture_image(); 2777 texObj->Image[level] = texImage; 2778 if (!texImage) { 2779 gl_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1DARB"); 2780 return; 2781 } 2782 } 2783 else if (texImage->Data) { 2784 FREE(texImage->Data); 2785 texImage->Data = NULL; 2786 } 2787 2788 /* setup the teximage struct's fields */ 2789 init_texture_image(ctx, texImage, width, 1, 1, 2790 border, internalFormat); 2791 2792 /* process the texture image */ 2793 if (data) { 2794 GLboolean retain = GL_TRUE; 2795 GLboolean success = GL_FALSE; 2796 if (ctx->Driver.CompressedTexImage1D) { 2797 success = (*ctx->Driver.CompressedTexImage1D)(ctx, target, level, 2798 imageSize, data, texObj, texImage, &retain); 2799 } 2800 if (retain || !success) { 2801 /* make internal copy of the texture image */ 2802 computedImageSize = _mesa_compressed_image_size(ctx, 2803 internalFormat, 2804 1, /* num dims */ 2805 width, 2806 1, /* height */ 2807 1); /* depth */ 2808 if (computedImageSize != imageSize) { 2809 gl_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage1DARB(imageSize)"); 2810 return; 2811 } 2812 texImage->Data = MALLOC(computedImageSize); 2813 if (texImage->Data) { 2814 MEMCPY(texImage->Data, data, computedImageSize); 2815 } 2816 } 2817 if (!retain && texImage->Data) { 2818 FREE(texImage->Data); 2819 texImage->Data = NULL; 2820 } 2821 } 2822 else { 2823 make_null_texture(texImage); 2824 if (ctx->Driver.CompressedTexImage1D) { 2825 GLboolean retain; 2826 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level, 0, 2827 texImage->Data, texObj, 2828 texImage, &retain); 2829 } 2830 } 2831 2832 /* state update */ 2833 gl_put_texobj_on_dirty_list( ctx, texObj ); 2834 ctx->NewState |= NEW_TEXTURING; 2835 } 2836 else if (target == GL_PROXY_TEXTURE_1D) { 2837 /* Proxy texture: check for errors and update proxy state */ 2838 if (texture_error_check(ctx, target, level, internalFormat, 2839 GL_NONE, GL_NONE, 1, width, 1, 1, border)) { 2840 /* if error, clear all proxy texture image parameters */ 2841 if (level>=0 && level<ctx->Const.MaxTextureLevels) { 2842 clear_proxy_teximage(ctx->Texture.Proxy1D->Image[level]); 2843 } 2844 } 2845 else { 2846 /* if no error, update proxy texture image parameters */ 2847 init_texture_image(ctx, ctx->Texture.Proxy1D->Image[level], 2848 width, 1, 1, border, internalFormat); 2849 } 2850 } 2851 else { 2852 gl_error( ctx, GL_INVALID_ENUM, "glCompressedTexImage1DARB(target)" ); 2853 return; 2854 } 2855} 2856 2857 2858void 2859_mesa_CompressedTexImage2DARB(GLenum target, GLint level, 2860 GLenum internalFormat, GLsizei width, 2861 GLsizei height, GLint border, GLsizei imageSize, 2862 const GLvoid *data) 2863{ 2864 GET_CURRENT_CONTEXT(ctx); 2865 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCompressedTexImage2DARB"); 2866 2867 switch (internalFormat) { 2868 case GL_COMPRESSED_ALPHA_ARB: 2869 case GL_COMPRESSED_LUMINANCE_ARB: 2870 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: 2871 case GL_COMPRESSED_INTENSITY_ARB: 2872 case GL_COMPRESSED_RGB_ARB: 2873 case GL_COMPRESSED_RGBA_ARB: 2874 gl_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2DARB"); 2875 return; 2876 default: 2877 /* silence compiler warning */ 2878 ; 2879 } 2880 2881 if (target==GL_TEXTURE_2D || 2882 (ctx->Extensions.HaveTextureCubeMap && 2883 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 2884 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) { 2885 struct gl_texture_unit *texUnit; 2886 struct gl_texture_object *texObj; 2887 struct gl_texture_image *texImage; 2888 GLsizei computedImageSize; 2889 2890 if (texture_error_check(ctx, target, level, internalFormat, 2891 GL_NONE, GL_NONE, 1, width, height, 1, border)) { 2892 return; /* error in texture image was detected */ 2893 } 2894 2895 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 2896 texObj = texUnit->CurrentD[2]; 2897 texImage = texObj->Image[level]; 2898 2899 if (!texImage) { 2900 texImage = _mesa_alloc_texture_image(); 2901 texObj->Image[level] = texImage; 2902 if (!texImage) { 2903 gl_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2DARB"); 2904 return; 2905 } 2906 } 2907 else if (texImage->Data) { 2908 FREE(texImage->Data); 2909 texImage->Data = NULL; 2910 } 2911 2912 /* setup the teximage struct's fields */ 2913 init_texture_image(ctx, texImage, width, height, 1, border, internalFormat); 2914 2915 /* process the texture image */ 2916 if (data) { 2917 GLboolean retain = GL_TRUE; 2918 GLboolean success = GL_FALSE; 2919 if (ctx->Driver.CompressedTexImage2D) { 2920 success = (*ctx->Driver.CompressedTexImage2D)( ctx, 2921 target, 2922 level, 2923 imageSize, 2924 data, 2925 texObj, 2926 texImage, 2927 &retain); 2928 } 2929 if (retain || !success) { 2930 /* make internal copy of the texture image */ 2931 computedImageSize = _mesa_compressed_image_size(ctx, 2932 internalFormat, 2933 2, /* num dims */ 2934 width, 2935 height, 2936 1); /* depth */ 2937 if (computedImageSize != imageSize) { 2938 gl_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage2DARB(imageSize)"); 2939 return; 2940 } 2941 texImage->Data = MALLOC(computedImageSize); 2942 if (texImage->Data) { 2943 MEMCPY(texImage->Data, data, computedImageSize); 2944 } 2945 } 2946 if (!retain && texImage->Data) { 2947 FREE(texImage->Data); 2948 texImage->Data = NULL; 2949 } 2950 } 2951 else { 2952 make_null_texture(texImage); 2953 if (ctx->Driver.CompressedTexImage2D) { 2954 GLboolean retain; 2955 (*ctx->Driver.CompressedTexImage2D)( ctx, target, level, 0, 2956 texImage->Data, texObj, 2957 texImage, &retain); 2958 } 2959 } 2960 2961 /* state update */ 2962 gl_put_texobj_on_dirty_list( ctx, texObj ); 2963 ctx->NewState |= NEW_TEXTURING; 2964 } 2965 else if (target == GL_PROXY_TEXTURE_2D) { 2966 /* Proxy texture: check for errors and update proxy state */ 2967 if (texture_error_check(ctx, target, level, internalFormat, 2968 GL_NONE, GL_NONE, 1, width, 1, 1, border)) { 2969 /* if error, clear all proxy texture image parameters */ 2970 if (level>=0 && level<ctx->Const.MaxTextureLevels) { 2971 clear_proxy_teximage(ctx->Texture.Proxy2D->Image[level]); 2972 } 2973 } 2974 else { 2975 /* if no error, update proxy texture image parameters */ 2976 init_texture_image(ctx, ctx->Texture.Proxy2D->Image[level], 2977 width, 1, 1, border, internalFormat); 2978 } 2979 } 2980 else { 2981 gl_error( ctx, GL_INVALID_ENUM, "glCompressedTexImage2DARB(target)" ); 2982 return; 2983 } 2984} 2985 2986 2987void 2988_mesa_CompressedTexImage3DARB(GLenum target, GLint level, 2989 GLenum internalFormat, GLsizei width, 2990 GLsizei height, GLsizei depth, GLint border, 2991 GLsizei imageSize, const GLvoid *data) 2992{ 2993 GET_CURRENT_CONTEXT(ctx); 2994 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCompressedTexImage3DARB"); 2995 2996 switch (internalFormat) { 2997 case GL_COMPRESSED_ALPHA_ARB: 2998 case GL_COMPRESSED_LUMINANCE_ARB: 2999 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: 3000 case GL_COMPRESSED_INTENSITY_ARB: 3001 case GL_COMPRESSED_RGB_ARB: 3002 case GL_COMPRESSED_RGBA_ARB: 3003 gl_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3DARB"); 3004 return; 3005 default: 3006 /* silence compiler warning */ 3007 ; 3008 } 3009 3010 if (target == GL_TEXTURE_3D) { 3011 struct gl_texture_unit *texUnit; 3012 struct gl_texture_object *texObj; 3013 struct gl_texture_image *texImage; 3014 GLsizei computedImageSize; 3015 3016 if (texture_error_check(ctx, target, level, internalFormat, 3017 GL_NONE, GL_NONE, 1, width, height, depth, border)) { 3018 return; /* error in texture image was detected */ 3019 } 3020 3021 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 3022 texObj = texUnit->CurrentD[3]; 3023 texImage = texObj->Image[level]; 3024 3025 if (!texImage) { 3026 texImage = _mesa_alloc_texture_image(); 3027 texObj->Image[level] = texImage; 3028 if (!texImage) { 3029 gl_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3DARB"); 3030 return; 3031 } 3032 } 3033 else if (texImage->Data) { 3034 FREE(texImage->Data); 3035 texImage->Data = NULL; 3036 } 3037 3038 /* setup the teximage struct's fields */ 3039 init_texture_image(ctx, texImage, width, height, depth, 3040 border, internalFormat); 3041 3042 /* process the texture image */ 3043 if (data) { 3044 GLboolean retain = GL_TRUE; 3045 GLboolean success = GL_FALSE; 3046 if (ctx->Driver.CompressedTexImage3D) { 3047 success = (*ctx->Driver.CompressedTexImage3D)(ctx, target, level, 3048 imageSize, data, 3049 texObj, texImage, 3050 &retain); 3051 } 3052 if (retain || !success) { 3053 /* make internal copy of the texture image */ 3054 computedImageSize = _mesa_compressed_image_size(ctx, 3055 internalFormat, 3056 3, /* num dims */ 3057 width, 3058 height, 3059 depth); 3060 if (computedImageSize != imageSize) { 3061 gl_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage3DARB(imageSize)"); 3062 return; 3063 } 3064 texImage->Data = MALLOC(computedImageSize); 3065 if (texImage->Data) { 3066 MEMCPY(texImage->Data, data, computedImageSize); 3067 } 3068 } 3069 if (!retain && texImage->Data) { 3070 FREE(texImage->Data); 3071 texImage->Data = NULL; 3072 } 3073 } 3074 else { 3075 make_null_texture(texImage); 3076 if (ctx->Driver.CompressedTexImage3D) { 3077 GLboolean retain; 3078 (*ctx->Driver.CompressedTexImage3D)( ctx, target, level, 0, 3079 texImage->Data, texObj, 3080 texImage, &retain); 3081 } 3082 } 3083 3084 /* state update */ 3085 gl_put_texobj_on_dirty_list( ctx, texObj ); 3086 ctx->NewState |= NEW_TEXTURING; 3087 } 3088 else if (target == GL_PROXY_TEXTURE_3D) { 3089 /* Proxy texture: check for errors and update proxy state */ 3090 if (texture_error_check(ctx, target, level, internalFormat, 3091 GL_NONE, GL_NONE, 1, width, height, depth, border)) { 3092 /* if error, clear all proxy texture image parameters */ 3093 if (level>=0 && level<ctx->Const.MaxTextureLevels) { 3094 clear_proxy_teximage(ctx->Texture.Proxy3D->Image[level]); 3095 } 3096 } 3097 else { 3098 /* if no error, update proxy texture image parameters */ 3099 init_texture_image(ctx, ctx->Texture.Proxy3D->Image[level], 3100 width, 1, 1, border, internalFormat); 3101 } 3102 } 3103 else { 3104 gl_error( ctx, GL_INVALID_ENUM, "glCompressedTexImage3DARB(target)" ); 3105 return; 3106 } 3107} 3108 3109 3110void 3111_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, 3112 GLsizei width, GLenum format, 3113 GLsizei imageSize, const GLvoid *data) 3114{ 3115 GET_CURRENT_CONTEXT(ctx); 3116 struct gl_texture_unit *texUnit; 3117 struct gl_texture_object *texObj; 3118 struct gl_texture_image *texImage; 3119 GLboolean success = GL_FALSE; 3120 3121 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0, 3122 width, 1, 1, format, GL_NONE)) { 3123 return; /* error was detected */ 3124 } 3125 3126 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 3127 texObj = _mesa_select_tex_object(ctx, texUnit, target); 3128 texImage = texObj->Image[level]; 3129 assert(texImage); 3130 3131 if (width == 0 || !data) 3132 return; /* no-op, not an error */ 3133 3134 if (ctx->Driver.CompressedTexSubImage1D) { 3135 success = (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level, 3136 xoffset, width, format, imageSize, data, texObj, texImage); 3137 } 3138 if (!success) { 3139 /* XXX what else can we do? */ 3140 gl_problem(ctx, "glCompressedTexSubImage1DARB failed!"); 3141 return; 3142 } 3143} 3144 3145 3146void 3147_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, 3148 GLint yoffset, GLsizei width, GLsizei height, 3149 GLenum format, GLsizei imageSize, 3150 const GLvoid *data) 3151{ 3152 GET_CURRENT_CONTEXT(ctx); 3153 struct gl_texture_unit *texUnit; 3154 struct gl_texture_object *texObj; 3155 struct gl_texture_image *texImage; 3156 GLboolean success = GL_FALSE; 3157 3158 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0, 3159 width, height, 1, format, GL_NONE)) { 3160 return; /* error was detected */ 3161 } 3162 3163 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 3164 texObj = _mesa_select_tex_object(ctx, texUnit, target); 3165 texImage = texObj->Image[level]; 3166 assert(texImage); 3167 3168 if (width == 0 || height == 0 || !data) 3169 return; /* no-op, not an error */ 3170 3171 if (ctx->Driver.CompressedTexSubImage2D) { 3172 success = (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level, 3173 xoffset, yoffset, width, height, format, 3174 imageSize, data, texObj, texImage); 3175 } 3176 if (!success) { 3177 /* XXX what else can we do? */ 3178 gl_problem(ctx, "glCompressedTexSubImage2DARB failed!"); 3179 return; 3180 } 3181} 3182 3183 3184void 3185_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, 3186 GLint yoffset, GLint zoffset, GLsizei width, 3187 GLsizei height, GLsizei depth, GLenum format, 3188 GLsizei imageSize, const GLvoid *data) 3189{ 3190 GET_CURRENT_CONTEXT(ctx); 3191 struct gl_texture_unit *texUnit; 3192 struct gl_texture_object *texObj; 3193 struct gl_texture_image *texImage; 3194 GLboolean success = GL_FALSE; 3195 3196 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset, 3197 width, height, depth, format, GL_NONE)) { 3198 return; /* error was detected */ 3199 } 3200 3201 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 3202 texObj = _mesa_select_tex_object(ctx, texUnit, target); 3203 texImage = texObj->Image[level]; 3204 assert(texImage); 3205 3206 if (width == 0 || height == 0 || depth == 0 || !data) 3207 return; /* no-op, not an error */ 3208 3209 if (ctx->Driver.CompressedTexSubImage3D) { 3210 success = (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level, 3211 xoffset, yoffset, zoffset, width, height, depth, 3212 format, imageSize, data, texObj, texImage); 3213 } 3214 if (!success) { 3215 /* XXX what else can we do? */ 3216 gl_problem(ctx, "glCompressedTexSubImage3DARB failed!"); 3217 return; 3218 } 3219} 3220 3221 3222void 3223_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img) 3224{ 3225 GET_CURRENT_CONTEXT(ctx); 3226 const struct gl_texture_object *texObj; 3227 struct gl_texture_image *texImage; 3228 3229 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetCompressedTexImageARB"); 3230 3231 if (level < 0 || level >= ctx->Const.MaxTextureLevels) { 3232 gl_error( ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)" ); 3233 return; 3234 } 3235 3236 switch (target) { 3237 case GL_TEXTURE_1D: 3238 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentD[1]; 3239 texImage = texObj->Image[level]; 3240 break; 3241 case GL_TEXTURE_2D: 3242 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentD[2]; 3243 texImage = texObj->Image[level]; 3244 break; 3245 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 3246 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap; 3247 texImage = texObj->Image[level]; 3248 break; 3249 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 3250 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap; 3251 texImage = texObj->NegX[level]; 3252 break; 3253 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 3254 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap; 3255 texImage = texObj->PosY[level]; 3256 break; 3257 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 3258 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap; 3259 texImage = texObj->NegY[level]; 3260 break; 3261 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 3262 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap; 3263 texImage = texObj->PosZ[level]; 3264 break; 3265 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 3266 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap; 3267 texImage = texObj->NegZ[level]; 3268 break; 3269 case GL_TEXTURE_3D: 3270 texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentD[3]; 3271 texImage = texObj->Image[level]; 3272 break; 3273 default: 3274 gl_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)"); 3275 return; 3276 } 3277 3278 if (!texImage) { 3279 /* invalid mipmap level */ 3280 gl_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)"); 3281 return; 3282 } 3283 3284 if (!texImage->IsCompressed) { 3285 gl_error(ctx, GL_INVALID_OPERATION, "glGetCompressedTexImageARB"); 3286 return; 3287 } 3288 3289 if (!img) 3290 return; 3291 3292 if (ctx->Driver.GetCompressedTexImage) { 3293 (*ctx->Driver.GetCompressedTexImage)(ctx, target, level, img, texObj, 3294 texImage); 3295 } 3296 else { 3297 gl_problem(ctx, "Driver doesn't implement GetCompressedTexImage"); 3298 } 3299} 3300