st_cb_texture.c revision 28b315dc1aed36bebadfacbd55e481e7baacfcb5
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28#include "main/imports.h" 29#include "main/convolve.h" 30#include "main/enums.h" 31#include "main/image.h" 32#include "main/macros.h" 33#include "main/texcompress.h" 34#include "main/texformat.h" 35#include "main/teximage.h" 36#include "main/texobj.h" 37#include "main/texstore.h" 38 39#include "state_tracker/st_context.h" 40#include "state_tracker/st_cb_fbo.h" 41#include "state_tracker/st_cb_texture.h" 42#include "state_tracker/st_format.h" 43#include "state_tracker/st_mipmap_tree.h" 44 45#include "pipe/p_context.h" 46#include "pipe/p_defines.h" 47 48 49#define DBG if (0) printf 50 51 52struct st_texture_object 53{ 54 struct gl_texture_object base; /* The "parent" object */ 55 56 /* The mipmap tree must include at least these levels once 57 * validated: 58 */ 59 GLuint firstLevel; 60 GLuint lastLevel; 61 62 /* Offset for firstLevel image: 63 */ 64 GLuint textureOffset; 65 66 /* On validation any active images held in main memory or in other 67 * regions will be copied to this region and the old storage freed. 68 */ 69 struct pipe_mipmap_tree *mt; 70 71 GLboolean imageOverride; 72 GLint depthOverride; 73 GLuint pitchOverride; 74}; 75 76 77 78struct st_texture_image 79{ 80 struct gl_texture_image base; 81 82 /* These aren't stored in gl_texture_image 83 */ 84 GLuint level; 85 GLuint face; 86 87 /* If stImage->mt != NULL, image data is stored here. 88 * Else if stImage->base.Data != NULL, image is stored there. 89 * Else there is no image data. 90 */ 91 struct pipe_mipmap_tree *mt; 92}; 93 94 95 96 97static INLINE struct st_texture_object * 98st_texture_object(struct gl_texture_object *obj) 99{ 100 return (struct st_texture_object *) obj; 101} 102 103static INLINE struct st_texture_image * 104st_texture_image(struct gl_texture_image *img) 105{ 106 return (struct st_texture_image *) img; 107} 108 109 110struct pipe_mipmap_tree * 111st_get_texobj_mipmap_tree(struct gl_texture_object *texObj) 112{ 113 struct st_texture_object *stObj = st_texture_object(texObj); 114 return stObj->mt; 115} 116 117 118static unsigned 119gl_target_to_pipe(GLenum target) 120{ 121 switch (target) { 122 case GL_TEXTURE_1D: 123 return PIPE_TEXTURE_1D; 124 125 case GL_TEXTURE_2D: 126 case GL_TEXTURE_RECTANGLE_NV: 127 return PIPE_TEXTURE_2D; 128 129 case GL_TEXTURE_3D: 130 return PIPE_TEXTURE_3D; 131 132 case GL_TEXTURE_CUBE_MAP_ARB: 133 return PIPE_TEXTURE_CUBE; 134 135 default: 136 assert(0); 137 return 0; 138 } 139} 140 141 142static int 143compressed_num_bytes(GLuint mesaFormat) 144{ 145 int bytes = 0; 146 switch(mesaFormat) { 147 148 case MESA_FORMAT_RGB_FXT1: 149 case MESA_FORMAT_RGBA_FXT1: 150 case MESA_FORMAT_RGB_DXT1: 151 case MESA_FORMAT_RGBA_DXT1: 152 bytes = 2; 153 break; 154 155 case MESA_FORMAT_RGBA_DXT3: 156 case MESA_FORMAT_RGBA_DXT5: 157 bytes = 4; 158 default: 159 break; 160 } 161 162 return bytes; 163} 164 165 166 167 168static GLboolean 169st_IsTextureResident(GLcontext * ctx, struct gl_texture_object *texObj) 170{ 171#if 0 172 struct intel_context *intel = intel_context(ctx); 173 struct st_texture_object *stObj = st_texture_object(texObj); 174 175 return 176 stObj->mt && 177 stObj->mt->region && 178 intel_is_region_resident(intel, stObj->mt->region); 179#endif 180 return 1; 181} 182 183 184 185static struct gl_texture_image * 186st_NewTextureImage(GLcontext * ctx) 187{ 188 DBG("%s\n", __FUNCTION__); 189 (void) ctx; 190 return (struct gl_texture_image *) CALLOC_STRUCT(st_texture_image); 191} 192 193 194static struct gl_texture_object * 195st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 196{ 197 struct st_texture_object *obj = CALLOC_STRUCT(st_texture_object); 198 199 DBG("%s\n", __FUNCTION__); 200 _mesa_initialize_texture_object(&obj->base, name, target); 201 202 return &obj->base; 203} 204 205static void 206st_DeleteTextureObject(GLcontext *ctx, 207 struct gl_texture_object *texObj) 208{ 209 struct pipe_context *pipe = ctx->st->pipe; 210 struct st_texture_object *stObj = st_texture_object(texObj); 211 212 if (stObj->mt) 213 st_miptree_release(pipe, &stObj->mt); 214 215 _mesa_delete_texture_object(ctx, texObj); 216} 217 218 219static void 220st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 221{ 222 struct pipe_context *pipe = ctx->st->pipe; 223 struct st_texture_image *stImage = st_texture_image(texImage); 224 225 DBG("%s\n", __FUNCTION__); 226 227 if (stImage->mt) { 228 st_miptree_release(pipe, &stImage->mt); 229 } 230 231 if (texImage->Data) { 232 free(texImage->Data); 233 texImage->Data = NULL; 234 } 235} 236 237 238 239 240/* ================================================================ 241 * From linux kernel i386 header files, copes with odd sizes better 242 * than COPY_DWORDS would: 243 * XXX Put this in src/mesa/main/imports.h ??? 244 */ 245#if defined(i386) || defined(__i386__) 246static INLINE void * 247__memcpy(void *to, const void *from, size_t n) 248{ 249 int d0, d1, d2; 250 __asm__ __volatile__("rep ; movsl\n\t" 251 "testb $2,%b4\n\t" 252 "je 1f\n\t" 253 "movsw\n" 254 "1:\ttestb $1,%b4\n\t" 255 "je 2f\n\t" 256 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 257 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 258 :"memory"); 259 return (to); 260} 261#else 262#define __memcpy(a,b,c) memcpy(a,b,c) 263#endif 264 265 266/* The system memcpy (at least on ubuntu 5.10) has problems copying 267 * to agp (writecombined) memory from a source which isn't 64-byte 268 * aligned - there is a 4x performance falloff. 269 * 270 * The x86 __memcpy is immune to this but is slightly slower 271 * (10%-ish) than the system memcpy. 272 * 273 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 274 * isn't much faster than x86_memcpy for agp copies. 275 * 276 * TODO: switch dynamically. 277 */ 278static void * 279do_memcpy(void *dest, const void *src, size_t n) 280{ 281 if ((((unsigned) src) & 63) || (((unsigned) dest) & 63)) { 282 return __memcpy(dest, src, n); 283 } 284 else 285 return memcpy(dest, src, n); 286} 287 288 289/* Functions to store texture images. Where possible, mipmap_tree's 290 * will be created or further instantiated with image data, otherwise 291 * images will be stored in malloc'd memory. A validation step is 292 * required to pull those images into a mipmap tree, or otherwise 293 * decide a fallback is required. 294 */ 295 296 297static int 298logbase2(int n) 299{ 300 GLint i = 1; 301 GLint log2 = 0; 302 303 while (n > i) { 304 i *= 2; 305 log2++; 306 } 307 308 return log2; 309} 310 311 312/* Otherwise, store it in memory if (Border != 0) or (any dimension == 313 * 1). 314 * 315 * Otherwise, if max_level >= level >= min_level, create tree with 316 * space for textures from min_level down to max_level. 317 * 318 * Otherwise, create tree with space for textures from (level 319 * 0)..(1x1). Consider pruning this tree at a validation if the 320 * saving is worth it. 321 */ 322static void 323guess_and_alloc_mipmap_tree(struct pipe_context *pipe, 324 struct st_texture_object *stObj, 325 struct st_texture_image *stImage) 326{ 327 GLuint firstLevel; 328 GLuint lastLevel; 329 GLuint width = stImage->base.Width; 330 GLuint height = stImage->base.Height; 331 GLuint depth = stImage->base.Depth; 332 GLuint l2width, l2height, l2depth; 333 GLuint i, comp_byte = 0; 334 335 DBG("%s\n", __FUNCTION__); 336 337 if (stImage->base.Border) 338 return; 339 340 if (stImage->level > stObj->base.BaseLevel && 341 (stImage->base.Width == 1 || 342 (stObj->base.Target != GL_TEXTURE_1D && 343 stImage->base.Height == 1) || 344 (stObj->base.Target == GL_TEXTURE_3D && 345 stImage->base.Depth == 1))) 346 return; 347 348 /* If this image disrespects BaseLevel, allocate from level zero. 349 * Usually BaseLevel == 0, so it's unlikely to happen. 350 */ 351 if (stImage->level < stObj->base.BaseLevel) 352 firstLevel = 0; 353 else 354 firstLevel = stObj->base.BaseLevel; 355 356 357 /* Figure out image dimensions at start level. 358 */ 359 for (i = stImage->level; i > firstLevel; i--) { 360 width <<= 1; 361 if (height != 1) 362 height <<= 1; 363 if (depth != 1) 364 depth <<= 1; 365 } 366 367 /* Guess a reasonable value for lastLevel. This is probably going 368 * to be wrong fairly often and might mean that we have to look at 369 * resizable buffers, or require that buffers implement lazy 370 * pagetable arrangements. 371 */ 372 if ((stObj->base.MinFilter == GL_NEAREST || 373 stObj->base.MinFilter == GL_LINEAR) && 374 stImage->level == firstLevel) { 375 lastLevel = firstLevel; 376 } 377 else { 378 l2width = logbase2(width); 379 l2height = logbase2(height); 380 l2depth = logbase2(depth); 381 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 382 } 383 384 assert(!stObj->mt); 385 if (stImage->base.IsCompressed) 386 comp_byte = compressed_num_bytes(stImage->base.TexFormat->MesaFormat); 387 stObj->mt = st_miptree_create(pipe, 388 gl_target_to_pipe(stObj->base.Target), 389 stImage->base.InternalFormat, 390 firstLevel, 391 lastLevel, 392 width, 393 height, 394 depth, 395 stImage->base.TexFormat->TexelBytes, 396 comp_byte); 397 398 stObj->mt->format 399 = st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat); 400 401 DBG("%s - success\n", __FUNCTION__); 402} 403 404 405 406 407static GLuint 408target_to_face(GLenum target) 409{ 410 switch (target) { 411 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 412 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 413 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 414 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 415 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 416 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 417 return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X); 418 default: 419 return 0; 420 } 421} 422 423 424 425/* There are actually quite a few combinations this will work for, 426 * more than what I've listed here. 427 */ 428static GLboolean 429check_pbo_format(GLint internalFormat, 430 GLenum format, GLenum type, 431 const struct gl_texture_format *mesa_format) 432{ 433 switch (internalFormat) { 434 case 4: 435 case GL_RGBA: 436 return (format == GL_BGRA && 437 (type == GL_UNSIGNED_BYTE || 438 type == GL_UNSIGNED_INT_8_8_8_8_REV) && 439 mesa_format == &_mesa_texformat_argb8888); 440 case 3: 441 case GL_RGB: 442 return (format == GL_RGB && 443 type == GL_UNSIGNED_SHORT_5_6_5 && 444 mesa_format == &_mesa_texformat_rgb565); 445 case GL_YCBCR_MESA: 446 return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE); 447 default: 448 return GL_FALSE; 449 } 450} 451 452 453/* XXX: Do this for TexSubImage also: 454 */ 455static GLboolean 456try_pbo_upload(GLcontext *ctx, 457 struct st_texture_image *stImage, 458 const struct gl_pixelstore_attrib *unpack, 459 GLint internalFormat, 460 GLint width, GLint height, 461 GLenum format, GLenum type, const void *pixels) 462{ 463 return GL_FALSE; /* XXX fix flushing/locking/blitting below */ 464#if 000 465 struct intel_context *intel = intel_context(ctx); 466 struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj); 467 GLuint src_offset, src_stride; 468 GLuint dst_offset, dst_stride; 469 470 if (!pbo || 471 ctx._ImageTransferState || 472 unpack->SkipPixels || unpack->SkipRows) { 473 _mesa_printf("%s: failure 1\n", __FUNCTION__); 474 return GL_FALSE; 475 } 476 477 src_offset = (GLuint) pixels; 478 479 if (unpack->RowLength > 0) 480 src_stride = unpack->RowLength; 481 else 482 src_stride = width; 483 484 dst_offset = st_miptree_image_offset(stImage->mt, 485 stImage->face, 486 stImage->level); 487 488 dst_stride = stImage->mt->pitch; 489 490 { 491 struct _DriBufferObject *src_buffer = 492 intel_bufferobj_buffer(intel, pbo, INTEL_READ); 493 494 /* Temporary hack: cast to _DriBufferObject: 495 */ 496 struct _DriBufferObject *dst_buffer = 497 (struct _DriBufferObject *)stImage->mt->region->buffer; 498 499 500 intelEmitCopyBlit(intel, 501 stImage->mt->cpp, 502 src_stride, src_buffer, src_offset, 503 dst_stride, dst_buffer, dst_offset, 504 0, 0, 0, 0, width, height, 505 GL_COPY); 506 } 507 508 return GL_TRUE; 509#endif 510} 511 512 513 514static GLboolean 515try_pbo_zcopy(GLcontext *ctx, 516 struct st_texture_image *stImage, 517 const struct gl_pixelstore_attrib *unpack, 518 GLint internalFormat, 519 GLint width, GLint height, 520 GLenum format, GLenum type, const void *pixels) 521{ 522 return GL_FALSE; 523} 524 525 526 527 528 529 530static void 531st_TexImage(GLcontext * ctx, 532 GLint dims, 533 GLenum target, GLint level, 534 GLint internalFormat, 535 GLint width, GLint height, GLint depth, 536 GLint border, 537 GLenum format, GLenum type, const void *pixels, 538 const struct gl_pixelstore_attrib *unpack, 539 struct gl_texture_object *texObj, 540 struct gl_texture_image *texImage, GLsizei imageSize, int compressed) 541{ 542 struct pipe_context *pipe = ctx->st->pipe; 543 struct st_texture_object *stObj = st_texture_object(texObj); 544 struct st_texture_image *stImage = st_texture_image(texImage); 545 GLint postConvWidth = width; 546 GLint postConvHeight = height; 547 GLint texelBytes, sizeInBytes; 548 GLuint dstRowStride; 549 550 551 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 552 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 553 554 stImage->face = target_to_face(target); 555 stImage->level = level; 556 557 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 558 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 559 &postConvHeight); 560 } 561 562 /* choose the texture format */ 563 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 564 format, type); 565 566 _mesa_set_fetch_functions(texImage, dims); 567 568 if (texImage->TexFormat->TexelBytes == 0) { 569 /* must be a compressed format */ 570 texelBytes = 0; 571 texImage->IsCompressed = GL_TRUE; 572 texImage->CompressedSize = 573 ctx->Driver.CompressedTextureSize(ctx, texImage->Width, 574 texImage->Height, texImage->Depth, 575 texImage->TexFormat->MesaFormat); 576 } else { 577 texelBytes = texImage->TexFormat->TexelBytes; 578 579 /* Minimum pitch of 32 bytes */ 580 if (postConvWidth * texelBytes < 32) { 581 postConvWidth = 32 / texelBytes; 582 texImage->RowStride = postConvWidth; 583 } 584 585 assert(texImage->RowStride == postConvWidth); 586 } 587 588 /* Release the reference to a potentially orphaned buffer. 589 * Release any old malloced memory. 590 */ 591 if (stImage->mt) { 592 st_miptree_release(pipe, &stImage->mt); 593 assert(!texImage->Data); 594 } 595 else if (texImage->Data) { 596 _mesa_align_free(texImage->Data); 597 } 598 599 /* If this is the only texture image in the tree, could call 600 * bmBufferData with NULL data to free the old block and avoid 601 * waiting on any outstanding fences. 602 */ 603 if (stObj->mt && 604 stObj->mt->first_level == level && 605 stObj->mt->last_level == level && 606 stObj->mt->target != PIPE_TEXTURE_CUBE && 607 !st_miptree_match_image(stObj->mt, &stImage->base, 608 stImage->face, stImage->level)) { 609 610 DBG("release it\n"); 611 st_miptree_release(pipe, &stObj->mt); 612 assert(!stObj->mt); 613 } 614 615 if (!stObj->mt) { 616 guess_and_alloc_mipmap_tree(pipe, stObj, stImage); 617 if (!stObj->mt) { 618 DBG("guess_and_alloc_mipmap_tree: failed\n"); 619 } 620 } 621 622 assert(!stImage->mt); 623 624 if (stObj->mt && 625 st_miptree_match_image(stObj->mt, &stImage->base, 626 stImage->face, stImage->level)) { 627 628 st_miptree_reference(&stImage->mt, stObj->mt); 629 assert(stImage->mt); 630 } 631 632 if (!stImage->mt) 633 DBG("XXX: Image did not fit into tree - storing in local memory!\n"); 634 635#if 0 /* XXX FIX when st_buffer_objects are in place */ 636 /* PBO fastpaths: 637 */ 638 if (dims <= 2 && 639 stImage->mt && 640 intel_buffer_object(unpack->BufferObj) && 641 check_pbo_format(internalFormat, format, 642 type, stImage->base.TexFormat)) { 643 644 DBG("trying pbo upload\n"); 645 646 /* Attempt to texture directly from PBO data (zero copy upload). 647 * 648 * Currently disable as it can lead to worse as well as better 649 * performance (in particular when pipe_region_cow() is 650 * required). 651 */ 652 if (stObj->mt == stImage->mt && 653 stObj->mt->first_level == level && 654 stObj->mt->last_level == level) { 655 656 if (try_pbo_zcopy(intel, stImage, unpack, 657 internalFormat, 658 width, height, format, type, pixels)) { 659 660 DBG("pbo zcopy upload succeeded\n"); 661 return; 662 } 663 } 664 665 666 /* Otherwise, attempt to use the blitter for PBO image uploads. 667 */ 668 if (try_pbo_upload(intel, stImage, unpack, 669 internalFormat, 670 width, height, format, type, pixels)) { 671 DBG("pbo upload succeeded\n"); 672 return; 673 } 674 675 DBG("pbo upload failed\n"); 676 } 677#else 678 (void) try_pbo_upload; 679 (void) check_pbo_format; 680 (void) try_pbo_zcopy; 681#endif 682 683 684 /* intelCopyTexImage calls this function with pixels == NULL, with 685 * the expectation that the mipmap tree will be set up but nothing 686 * more will be done. This is where those calls return: 687 */ 688 if (compressed) { 689 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 690 unpack, 691 "glCompressedTexImage"); 692 } else { 693 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 694 format, type, 695 pixels, unpack, "glTexImage"); 696 } 697 if (!pixels) 698 return; 699 700 if (stImage->mt) { 701 texImage->Data = st_miptree_image_map(pipe, 702 stImage->mt, 703 stImage->face, 704 stImage->level, 705 &dstRowStride, 706 stImage->base.ImageOffsets); 707 } 708 else { 709 /* Allocate regular memory and store the image there temporarily. */ 710 if (texImage->IsCompressed) { 711 sizeInBytes = texImage->CompressedSize; 712 dstRowStride = 713 _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width); 714 assert(dims != 3); 715 } 716 else { 717 dstRowStride = postConvWidth * texelBytes; 718 sizeInBytes = depth * dstRowStride * postConvHeight; 719 } 720 721 texImage->Data = malloc(sizeInBytes); 722 } 723 724 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 725 width, height, depth, width * texelBytes, dstRowStride); 726 727 /* Copy data. Would like to know when it's ok for us to eg. use 728 * the blitter to copy. Or, use the hardware to do the format 729 * conversion and copy: 730 */ 731 if (compressed) { 732 memcpy(texImage->Data, pixels, imageSize); 733 } 734 else if (!texImage->TexFormat->StoreImage(ctx, dims, 735 texImage->_BaseFormat, 736 texImage->TexFormat, 737 texImage->Data, 738 0, 0, 0, /* dstX/Y/Zoffset */ 739 dstRowStride, 740 texImage->ImageOffsets, 741 width, height, depth, 742 format, type, pixels, unpack)) { 743 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 744 } 745 746 _mesa_unmap_teximage_pbo(ctx, unpack); 747 748 if (stImage->mt) { 749 st_miptree_image_unmap(pipe, stImage->mt); 750 texImage->Data = NULL; 751 } 752 753#if 0 754 /* GL_SGIS_generate_mipmap -- this can be accelerated now. 755 */ 756 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 757 intel_generate_mipmap(ctx, target, 758 &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 759 texObj); 760 } 761#endif 762} 763 764 765static void 766st_TexImage3D(GLcontext * ctx, 767 GLenum target, GLint level, 768 GLint internalFormat, 769 GLint width, GLint height, GLint depth, 770 GLint border, 771 GLenum format, GLenum type, const void *pixels, 772 const struct gl_pixelstore_attrib *unpack, 773 struct gl_texture_object *texObj, 774 struct gl_texture_image *texImage) 775{ 776 st_TexImage(ctx, 3, target, level, 777 internalFormat, width, height, depth, border, 778 format, type, pixels, unpack, texObj, texImage, 0, 0); 779} 780 781 782static void 783st_TexImage2D(GLcontext * ctx, 784 GLenum target, GLint level, 785 GLint internalFormat, 786 GLint width, GLint height, GLint border, 787 GLenum format, GLenum type, const void *pixels, 788 const struct gl_pixelstore_attrib *unpack, 789 struct gl_texture_object *texObj, 790 struct gl_texture_image *texImage) 791{ 792 st_TexImage(ctx, 2, target, level, 793 internalFormat, width, height, 1, border, 794 format, type, pixels, unpack, texObj, texImage, 0, 0); 795} 796 797 798static void 799st_TexImage1D(GLcontext * ctx, 800 GLenum target, GLint level, 801 GLint internalFormat, 802 GLint width, GLint border, 803 GLenum format, GLenum type, const void *pixels, 804 const struct gl_pixelstore_attrib *unpack, 805 struct gl_texture_object *texObj, 806 struct gl_texture_image *texImage) 807{ 808 st_TexImage(ctx, 1, target, level, 809 internalFormat, width, 1, 1, border, 810 format, type, pixels, unpack, texObj, texImage, 0, 0); 811} 812 813 814static void 815st_CompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level, 816 GLint internalFormat, 817 GLint width, GLint height, GLint border, 818 GLsizei imageSize, const GLvoid *data, 819 struct gl_texture_object *texObj, 820 struct gl_texture_image *texImage ) 821{ 822 st_TexImage(ctx, 2, target, level, 823 internalFormat, width, height, 1, border, 824 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, 1); 825} 826 827 828/** 829 * Need to map texture image into memory before copying image data, 830 * then unmap it. 831 */ 832static void 833st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 834 GLenum format, GLenum type, GLvoid * pixels, 835 struct gl_texture_object *texObj, 836 struct gl_texture_image *texImage, int compressed) 837{ 838 /* 839 struct intel_context *intel = intel_context(ctx); 840 */ 841 struct pipe_context *pipe = ctx->st->pipe; 842 struct st_texture_image *stImage = st_texture_image(texImage); 843 844 /* Map */ 845 if (stImage->mt) { 846 /* Image is stored in hardware format in a buffer managed by the 847 * kernel. Need to explicitly map and unmap it. 848 */ 849 stImage->base.Data = 850 st_miptree_image_map(pipe, 851 stImage->mt, 852 stImage->face, 853 stImage->level, 854 &stImage->base.RowStride, 855 stImage->base.ImageOffsets); 856 stImage->base.RowStride /= stImage->mt->cpp; 857 } 858 else { 859 /* Otherwise, the image should actually be stored in 860 * stImage->base.Data. This is pretty confusing for 861 * everybody, I'd much prefer to separate the two functions of 862 * texImage->Data - storage for texture images in main memory 863 * and access (ie mappings) of images. In other words, we'd 864 * create a new texImage->Map field and leave Data simply for 865 * storage. 866 */ 867 assert(stImage->base.Data); 868 } 869 870 871 if (compressed) { 872 _mesa_get_compressed_teximage(ctx, target, level, pixels, 873 texObj, texImage); 874 } else { 875 _mesa_get_teximage(ctx, target, level, format, type, pixels, 876 texObj, texImage); 877 } 878 879 880 /* Unmap */ 881 if (stImage->mt) { 882 st_miptree_image_unmap(pipe, stImage->mt); 883 stImage->base.Data = NULL; 884 } 885} 886 887 888static void 889st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 890 GLenum format, GLenum type, GLvoid * pixels, 891 struct gl_texture_object *texObj, 892 struct gl_texture_image *texImage) 893{ 894 st_get_tex_image(ctx, target, level, format, type, pixels, 895 texObj, texImage, 0); 896} 897 898 899static void 900st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 901 GLvoid *pixels, 902 const struct gl_texture_object *texObj, 903 const struct gl_texture_image *texImage) 904{ 905 st_get_tex_image(ctx, target, level, 0, 0, pixels, 906 (struct gl_texture_object *) texObj, 907 (struct gl_texture_image *) texImage, 1); 908} 909 910 911 912static void 913st_TexSubimage(GLcontext * ctx, 914 GLint dims, 915 GLenum target, GLint level, 916 GLint xoffset, GLint yoffset, GLint zoffset, 917 GLint width, GLint height, GLint depth, 918 GLenum format, GLenum type, const void *pixels, 919 const struct gl_pixelstore_attrib *packing, 920 struct gl_texture_object *texObj, 921 struct gl_texture_image *texImage) 922{ 923 struct pipe_context *pipe = ctx->st->pipe; 924 struct st_texture_image *stImage = st_texture_image(texImage); 925 GLuint dstRowStride; 926 927 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 928 _mesa_lookup_enum_by_nr(target), 929 level, xoffset, yoffset, width, height); 930 931 pixels = 932 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 933 type, pixels, packing, "glTexSubImage2D"); 934 if (!pixels) 935 return; 936 937 /* Map buffer if necessary. Need to lock to prevent other contexts 938 * from uploading the buffer under us. 939 */ 940 if (stImage->mt) 941 texImage->Data = st_miptree_image_map(pipe, 942 stImage->mt, 943 stImage->face, 944 stImage->level, 945 &dstRowStride, 946 texImage->ImageOffsets); 947 948 assert(dstRowStride); 949 950 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 951 texImage->TexFormat, 952 texImage->Data, 953 xoffset, yoffset, zoffset, 954 dstRowStride, 955 texImage->ImageOffsets, 956 width, height, depth, 957 format, type, pixels, packing)) { 958 _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage"); 959 } 960 961#if 0 962 /* GL_SGIS_generate_mipmap */ 963 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 964 _mesa_generate_mipmap(ctx, target, 965 &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 966 texObj); 967 } 968#endif 969 970 _mesa_unmap_teximage_pbo(ctx, packing); 971 972 if (stImage->mt) { 973 st_miptree_image_unmap(pipe, stImage->mt); 974 texImage->Data = NULL; 975 } 976} 977 978 979 980static void 981st_TexSubImage3D(GLcontext * ctx, 982 GLenum target, 983 GLint level, 984 GLint xoffset, GLint yoffset, GLint zoffset, 985 GLsizei width, GLsizei height, GLsizei depth, 986 GLenum format, GLenum type, 987 const GLvoid * pixels, 988 const struct gl_pixelstore_attrib *packing, 989 struct gl_texture_object *texObj, 990 struct gl_texture_image *texImage) 991{ 992 st_TexSubimage(ctx, 3, target, level, 993 xoffset, yoffset, zoffset, 994 width, height, depth, 995 format, type, pixels, packing, texObj, texImage); 996} 997 998 999 1000static void 1001st_TexSubImage2D(GLcontext * ctx, 1002 GLenum target, 1003 GLint level, 1004 GLint xoffset, GLint yoffset, 1005 GLsizei width, GLsizei height, 1006 GLenum format, GLenum type, 1007 const GLvoid * pixels, 1008 const struct gl_pixelstore_attrib *packing, 1009 struct gl_texture_object *texObj, 1010 struct gl_texture_image *texImage) 1011{ 1012 st_TexSubimage(ctx, 2, target, level, 1013 xoffset, yoffset, 0, 1014 width, height, 1, 1015 format, type, pixels, packing, texObj, texImage); 1016} 1017 1018 1019static void 1020st_TexSubImage1D(GLcontext * ctx, 1021 GLenum target, 1022 GLint level, 1023 GLint xoffset, 1024 GLsizei width, 1025 GLenum format, GLenum type, 1026 const GLvoid * pixels, 1027 const struct gl_pixelstore_attrib *packing, 1028 struct gl_texture_object *texObj, 1029 struct gl_texture_image *texImage) 1030{ 1031 st_TexSubimage(ctx, 1, target, level, 1032 xoffset, 0, 0, 1033 width, 1, 1, 1034 format, type, pixels, packing, texObj, texImage); 1035} 1036 1037 1038 1039/** 1040 * Return 0 for GL_TEXTURE_CUBE_MAP_POSITIVE_X, 1041 * 1 for GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 1042 * etc. 1043 * XXX duplicated from main/teximage.c 1044 */ 1045static uint 1046texture_face(GLenum target) 1047{ 1048 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 1049 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) 1050 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; 1051 else 1052 return 0; 1053} 1054 1055 1056 1057/** 1058 * Do a CopyTexSubImage operation by mapping the source region and 1059 * dest region and using get_tile()/put_tile() to access the pixels/texels. 1060 * 1061 * Note: srcY=0=TOP of renderbuffer 1062 */ 1063static void 1064fallback_copy_texsubimage(GLcontext *ctx, 1065 GLenum target, 1066 GLint level, 1067 struct st_renderbuffer *strb, 1068 struct st_texture_image *stImage, 1069 GLenum baseFormat, 1070 GLint destX, GLint destY, GLint destZ, 1071 GLint srcX, GLint srcY, 1072 GLsizei width, GLsizei height) 1073{ 1074 struct pipe_context *pipe = ctx->st->pipe; 1075 const uint face = texture_face(target); 1076 struct pipe_mipmap_tree *mt = stImage->mt; 1077 struct pipe_surface *src_surf, *dest_surf; 1078 GLfloat *data; 1079 GLint row, yStep; 1080 1081 /* determine bottom-to-top vs. top-to-bottom order */ 1082 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1083 destY = height - 1 - destY; 1084 yStep = -1; 1085 } 1086 else { 1087 yStep = 1; 1088 } 1089 1090 src_surf = strb->surface; 1091 1092 dest_surf = pipe->get_tex_surface(pipe, mt, 1093 face, level, destZ); 1094 1095 (void) pipe->region_map(pipe, dest_surf->region); 1096 (void) pipe->region_map(pipe, src_surf->region); 1097 1098 /* buffer for one row */ 1099 data = (GLfloat *) malloc(width * 4 * sizeof(GLfloat)); 1100 1101 /* do copy row by row */ 1102 for (row = 0; row < height; row++) { 1103 src_surf->get_tile(src_surf, srcX, srcY + row, width, 1, data); 1104 1105 /* XXX we're ignoring convolution for now */ 1106 if (ctx->_ImageTransferState) { 1107 _mesa_apply_rgba_transfer_ops(ctx, 1108 ctx->_ImageTransferState & ~IMAGE_CONVOLUTION_BIT, 1109 width, (GLfloat (*)[4])data); 1110 } 1111 1112 dest_surf->put_tile(dest_surf, destX, destY, width, 1, data); 1113 destY += yStep; 1114 } 1115 1116 1117 (void) pipe->region_unmap(pipe, dest_surf->region); 1118 (void) pipe->region_unmap(pipe, src_surf->region); 1119 1120 free(data); 1121} 1122 1123 1124 1125 1126/** 1127 * Do a CopyTex[Sub]Image using an optimized hardware (blit) path. 1128 * Note that the region to copy has already been clip tested. 1129 * 1130 * Note: srcY=0=Bottom of renderbuffer 1131 * 1132 * \return GL_TRUE if success, GL_FALSE if failure (use a fallback) 1133 */ 1134static void 1135do_copy_texsubimage(GLcontext *ctx, 1136 GLenum target, GLint level, 1137 GLint destX, GLint destY, GLint destZ, 1138 GLint srcX, GLint srcY, 1139 GLsizei width, GLsizei height) 1140{ 1141 struct gl_texture_unit *texUnit = 1142 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1143 struct gl_texture_object *texObj = 1144 _mesa_select_tex_object(ctx, texUnit, target); 1145 struct gl_texture_image *texImage = 1146 _mesa_select_tex_image(ctx, texObj, target, level); 1147 struct st_texture_image *stImage = st_texture_image(texImage); 1148 GLenum baseFormat = texImage->InternalFormat; 1149 struct gl_framebuffer *fb = ctx->ReadBuffer; 1150 struct st_renderbuffer *strb; 1151 struct pipe_context *pipe = ctx->st->pipe; 1152 struct pipe_region *src_region, *dest_region; 1153 uint dest_offset, src_offset; 1154 uint dest_format, src_format; 1155 1156 (void) texImage; 1157 1158 /* determine if copying depth or color data */ 1159 if (baseFormat == GL_DEPTH_COMPONENT) { 1160 strb = st_renderbuffer(fb->_DepthBuffer); 1161 } 1162 else if (baseFormat == GL_DEPTH_STENCIL_EXT) { 1163 strb = st_renderbuffer(fb->_StencilBuffer); 1164 } 1165 else { 1166 /* baseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1167 strb = st_renderbuffer(fb->_ColorReadBuffer); 1168 } 1169 1170 assert(strb); 1171 assert(strb->surface); 1172 assert(stImage->mt); 1173 1174 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1175 srcY = strb->Base.Height - srcY - height; 1176 } 1177 1178 src_format = strb->surface->format; 1179 dest_format = stImage->mt->format; 1180 1181 src_region = strb->surface->region; 1182 dest_region = stImage->mt->region; 1183 1184 if (src_format == dest_format && 1185 ctx->_ImageTransferState == 0x0 && 1186 src_region && 1187 dest_region && 1188 src_region->cpp == dest_region->cpp) { 1189 /* do blit-style copy */ 1190 src_offset = 0; 1191 dest_offset = st_miptree_image_offset(stImage->mt, 1192 stImage->face, 1193 stImage->level); 1194 1195 /* XXX may need to invert image depending on window 1196 * vs. user-created FBO 1197 */ 1198 1199#if 0 1200 /* A bit of fiddling to get the blitter to work with -ve 1201 * pitches. But we get a nice inverted blit this way, so it's 1202 * worth it: 1203 */ 1204 intelEmitCopyBlit(intel, 1205 stImage->mt->cpp, 1206 -src->pitch, 1207 src->buffer, 1208 src->height * src->pitch * src->cpp, 1209 stImage->mt->pitch, 1210 stImage->mt->region->buffer, 1211 dest_offset, 1212 x, y + height, dstx, dsty, width, height, 1213 GL_COPY); /* ? */ 1214#else 1215 1216 pipe->region_copy(pipe, 1217 /* dest */ 1218 dest_region, 1219 dest_offset, 1220 destX, destY, 1221 /* src */ 1222 src_region, 1223 src_offset, 1224 srcX, srcY, 1225 /* size */ 1226 width, height); 1227#endif 1228 } 1229 else { 1230 fallback_copy_texsubimage(ctx, target, level, 1231 strb, stImage, baseFormat, 1232 destX, destY, destZ, 1233 srcX, srcY, width, height); 1234 } 1235 1236 1237#if 0 1238 /* GL_SGIS_generate_mipmap -- this can be accelerated now. 1239 * XXX Add a ctx->Driver.GenerateMipmaps() function? 1240 */ 1241 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1242 intel_generate_mipmap(ctx, target, 1243 &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 1244 texObj); 1245 } 1246#endif 1247 1248} 1249 1250 1251 1252static void 1253st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1254 GLenum internalFormat, 1255 GLint x, GLint y, GLsizei width, GLint border) 1256{ 1257 struct gl_texture_unit *texUnit = 1258 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1259 struct gl_texture_object *texObj = 1260 _mesa_select_tex_object(ctx, texUnit, target); 1261 struct gl_texture_image *texImage = 1262 _mesa_select_tex_image(ctx, texObj, target, level); 1263 1264#if 0 1265 if (border) 1266 goto fail; 1267#endif 1268 1269 /* Setup or redefine the texture object, mipmap tree and texture 1270 * image. Don't populate yet. 1271 */ 1272 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1273 width, border, 1274 GL_RGBA, CHAN_TYPE, NULL, 1275 &ctx->DefaultPacking, texObj, texImage); 1276 1277 do_copy_texsubimage(ctx, target, level, 1278 0, 0, 0, 1279 x, y, width, 1); 1280} 1281 1282 1283static void 1284st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1285 GLenum internalFormat, 1286 GLint x, GLint y, GLsizei width, GLsizei height, 1287 GLint border) 1288{ 1289 struct gl_texture_unit *texUnit = 1290 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1291 struct gl_texture_object *texObj = 1292 _mesa_select_tex_object(ctx, texUnit, target); 1293 struct gl_texture_image *texImage = 1294 _mesa_select_tex_image(ctx, texObj, target, level); 1295 1296#if 0 1297 if (border) 1298 goto fail; 1299#endif 1300 1301 /* Setup or redefine the texture object, mipmap tree and texture 1302 * image. Don't populate yet. 1303 */ 1304 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1305 width, height, border, 1306 GL_RGBA, CHAN_TYPE, NULL, 1307 &ctx->DefaultPacking, texObj, texImage); 1308 1309 1310 do_copy_texsubimage(ctx, target, level, 1311 0, 0, 0, 1312 x, y, width, height); 1313} 1314 1315 1316static void 1317st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1318 GLint xoffset, GLint x, GLint y, GLsizei width) 1319{ 1320 const GLint yoffset = 0, zoffset = 0; 1321 const GLsizei height = 1; 1322 do_copy_texsubimage(ctx, target, level, 1323 xoffset, yoffset, zoffset, 1324 x, y, width, height); 1325} 1326 1327 1328static void 1329st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1330 GLint xoffset, GLint yoffset, 1331 GLint x, GLint y, GLsizei width, GLsizei height) 1332{ 1333 const GLint zoffset = 0; 1334 do_copy_texsubimage(ctx, target, level, 1335 xoffset, yoffset, zoffset, 1336 x, y, width, height); 1337} 1338 1339 1340static void 1341st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1342 GLint xoffset, GLint yoffset, GLint zoffset, 1343 GLint x, GLint y, GLsizei width, GLsizei height) 1344{ 1345 do_copy_texsubimage(ctx, target, level, 1346 xoffset, yoffset, zoffset, 1347 x, y, width, height); 1348} 1349 1350 1351 1352 1353/** 1354 * Compute which mipmap levels that really need to be sent to the hardware. 1355 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1356 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1357 */ 1358static void 1359calculate_first_last_level(struct st_texture_object *stObj) 1360{ 1361 struct gl_texture_object *tObj = &stObj->base; 1362 const struct gl_texture_image *const baseImage = 1363 tObj->Image[0][tObj->BaseLevel]; 1364 1365 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1366 * and having firstLevel and lastLevel as signed prevents the need for 1367 * extra sign checks. 1368 */ 1369 int firstLevel; 1370 int lastLevel; 1371 1372 /* Yes, this looks overly complicated, but it's all needed. 1373 */ 1374 switch (tObj->Target) { 1375 case GL_TEXTURE_1D: 1376 case GL_TEXTURE_2D: 1377 case GL_TEXTURE_3D: 1378 case GL_TEXTURE_CUBE_MAP: 1379 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1380 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1381 */ 1382 firstLevel = lastLevel = tObj->BaseLevel; 1383 } 1384 else { 1385 firstLevel = tObj->BaseLevel + (GLint) (tObj->MinLod + 0.5); 1386 firstLevel = MAX2(firstLevel, tObj->BaseLevel); 1387 lastLevel = tObj->BaseLevel + (GLint) (tObj->MaxLod + 0.5); 1388 lastLevel = MAX2(lastLevel, tObj->BaseLevel); 1389 lastLevel = MIN2(lastLevel, tObj->BaseLevel + baseImage->MaxLog2); 1390 lastLevel = MIN2(lastLevel, tObj->MaxLevel); 1391 lastLevel = MAX2(firstLevel, lastLevel); /* need at least one level */ 1392 } 1393 break; 1394 case GL_TEXTURE_RECTANGLE_NV: 1395 case GL_TEXTURE_4D_SGIS: 1396 firstLevel = lastLevel = 0; 1397 break; 1398 default: 1399 return; 1400 } 1401 1402 /* save these values */ 1403 stObj->firstLevel = firstLevel; 1404 stObj->lastLevel = lastLevel; 1405} 1406 1407 1408static void 1409copy_image_data_to_tree(struct pipe_context *pipe, 1410 struct st_texture_object *stObj, 1411 struct st_texture_image *stImage) 1412{ 1413 if (stImage->mt) { 1414 /* Copy potentially with the blitter: 1415 */ 1416 st_miptree_image_copy(pipe, 1417 stObj->mt, /* dest miptree */ 1418 stImage->face, stImage->level, 1419 stImage->mt /* src miptree */ 1420 ); 1421 1422 st_miptree_release(pipe, &stImage->mt); 1423 } 1424 else { 1425 assert(stImage->base.Data != NULL); 1426 1427 /* More straightforward upload. 1428 */ 1429 st_miptree_image_data(pipe, 1430 stObj->mt, 1431 stImage->face, 1432 stImage->level, 1433 stImage->base.Data, 1434 stImage->base.RowStride, 1435 stImage->base.RowStride * 1436 stImage->base.Height); 1437 _mesa_align_free(stImage->base.Data); 1438 stImage->base.Data = NULL; 1439 } 1440 1441 st_miptree_reference(&stImage->mt, stObj->mt); 1442} 1443 1444 1445/* 1446 */ 1447GLboolean 1448st_finalize_mipmap_tree(GLcontext *ctx, 1449 struct pipe_context *pipe, GLuint unit, 1450 GLboolean *needFlush) 1451{ 1452 struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current; 1453 struct st_texture_object *stObj = st_texture_object(tObj); 1454 int comp_byte = 0; 1455 int cpp; 1456 1457 GLuint face, i; 1458 GLuint nr_faces = 0; 1459 struct st_texture_image *firstImage; 1460 1461 *needFlush = GL_FALSE; 1462 1463 /* We know/require this is true by now: 1464 */ 1465 assert(stObj->base._Complete); 1466 1467 /* What levels must the tree include at a minimum? 1468 */ 1469 calculate_first_last_level(stObj); 1470 firstImage = 1471 st_texture_image(stObj->base.Image[0][stObj->firstLevel]); 1472 1473 /* Fallback case: 1474 */ 1475 if (firstImage->base.Border) { 1476 if (stObj->mt) { 1477 st_miptree_release(pipe, &stObj->mt); 1478 } 1479 return GL_FALSE; 1480 } 1481 1482 1483 /* If both firstImage and stObj have a tree which can contain 1484 * all active images, favour firstImage. Note that because of the 1485 * completeness requirement, we know that the image dimensions 1486 * will match. 1487 */ 1488 if (firstImage->mt && 1489 firstImage->mt != stObj->mt && 1490 firstImage->mt->first_level <= stObj->firstLevel && 1491 firstImage->mt->last_level >= stObj->lastLevel) { 1492 1493 if (stObj->mt) 1494 st_miptree_release(pipe, &stObj->mt); 1495 1496 st_miptree_reference(&stObj->mt, firstImage->mt); 1497 } 1498 1499 if (firstImage->base.IsCompressed) { 1500 comp_byte = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1501 cpp = comp_byte; 1502 } 1503 else cpp = firstImage->base.TexFormat->TexelBytes; 1504 1505 /* Check tree can hold all active levels. Check tree matches 1506 * target, imageFormat, etc. 1507 * 1508 * XXX: For some layouts (eg i945?), the test might have to be 1509 * first_level == firstLevel, as the tree isn't valid except at the 1510 * original start level. Hope to get around this by 1511 * programming minLod, maxLod, baseLevel into the hardware and 1512 * leaving the tree alone. 1513 */ 1514 if (stObj->mt && 1515 (stObj->mt->target != gl_target_to_pipe(stObj->base.Target) || 1516 stObj->mt->internal_format != firstImage->base.InternalFormat || 1517 stObj->mt->first_level != stObj->firstLevel || 1518 stObj->mt->last_level != stObj->lastLevel || 1519 stObj->mt->width0 != firstImage->base.Width || 1520 stObj->mt->height0 != firstImage->base.Height || 1521 stObj->mt->depth0 != firstImage->base.Depth || 1522 stObj->mt->cpp != cpp || 1523 stObj->mt->compressed != firstImage->base.IsCompressed)) { 1524 st_miptree_release(pipe, &stObj->mt); 1525 } 1526 1527 1528 /* May need to create a new tree: 1529 */ 1530 if (!stObj->mt) { 1531 stObj->mt = st_miptree_create(pipe, 1532 gl_target_to_pipe(stObj->base.Target), 1533 firstImage->base.InternalFormat, 1534 stObj->firstLevel, 1535 stObj->lastLevel, 1536 firstImage->base.Width, 1537 firstImage->base.Height, 1538 firstImage->base.Depth, 1539 cpp, 1540 comp_byte); 1541 1542 stObj->mt->format 1543 = st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1544 } 1545 1546 /* Pull in any images not in the object's tree: 1547 */ 1548 nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1549 for (face = 0; face < nr_faces; face++) { 1550 for (i = stObj->firstLevel; i <= stObj->lastLevel; i++) { 1551 struct st_texture_image *stImage = 1552 st_texture_image(stObj->base.Image[face][i]); 1553 1554 /* Need to import images in main memory or held in other trees. 1555 */ 1556 if (stObj->mt != stImage->mt) { 1557 copy_image_data_to_tree(pipe, stObj, stImage); 1558 *needFlush = GL_TRUE; 1559 } 1560 } 1561 } 1562 1563 1564 return GL_TRUE; 1565} 1566 1567 1568 1569 1570void 1571st_init_texture_functions(struct dd_function_table *functions) 1572{ 1573 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1574 functions->TexImage1D = st_TexImage1D; 1575 functions->TexImage2D = st_TexImage2D; 1576 functions->TexImage3D = st_TexImage3D; 1577 functions->TexSubImage1D = st_TexSubImage1D; 1578 functions->TexSubImage2D = st_TexSubImage2D; 1579 functions->TexSubImage3D = st_TexSubImage3D; 1580 functions->CopyTexImage1D = st_CopyTexImage1D; 1581 functions->CopyTexImage2D = st_CopyTexImage2D; 1582 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1583 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1584 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1585 1586 functions->GetTexImage = st_GetTexImage; 1587 1588 /* compressed texture functions */ 1589 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1590 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1591 1592 functions->NewTextureObject = st_NewTextureObject; 1593 functions->NewTextureImage = st_NewTextureImage; 1594 functions->DeleteTexture = st_DeleteTextureObject; 1595 functions->FreeTexImageData = st_FreeTextureImageData; 1596 functions->UpdateTexturePalette = 0; 1597 functions->IsTextureResident = st_IsTextureResident; 1598 1599 functions->TextureMemCpy = do_memcpy; 1600} 1601