st_cb_texture.c revision 987d59bb83e9e08192563e5f1b52949c5511053c
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_texture.h" 44 45#include "pipe/p_context.h" 46#include "pipe/p_defines.h" 47#include "pipe/p_inlines.h" 48 49 50#define DBG if (0) printf 51 52 53struct st_texture_object 54{ 55 struct gl_texture_object base; /* The "parent" object */ 56 57 /* The texture must include at least these levels once 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_texture *pt; 70 71 GLboolean imageOverride; 72 GLint depthOverride; 73 GLuint pitchOverride; 74}; 75 76 77 78 79static INLINE struct st_texture_object * 80st_texture_object(struct gl_texture_object *obj) 81{ 82 return (struct st_texture_object *) obj; 83} 84 85static INLINE struct st_texture_image * 86st_texture_image(struct gl_texture_image *img) 87{ 88 return (struct st_texture_image *) img; 89} 90 91 92struct pipe_texture * 93st_get_texobj_texture(struct gl_texture_object *texObj) 94{ 95 struct st_texture_object *stObj = st_texture_object(texObj); 96 return stObj->pt; 97} 98 99 100static unsigned 101gl_target_to_pipe(GLenum target) 102{ 103 switch (target) { 104 case GL_TEXTURE_1D: 105 return PIPE_TEXTURE_1D; 106 107 case GL_TEXTURE_2D: 108 case GL_TEXTURE_RECTANGLE_NV: 109 return PIPE_TEXTURE_2D; 110 111 case GL_TEXTURE_3D: 112 return PIPE_TEXTURE_3D; 113 114 case GL_TEXTURE_CUBE_MAP_ARB: 115 return PIPE_TEXTURE_CUBE; 116 117 default: 118 assert(0); 119 return 0; 120 } 121} 122 123 124static int 125compressed_num_bytes(GLuint mesaFormat) 126{ 127 int bytes = 0; 128 switch(mesaFormat) { 129 130 case MESA_FORMAT_RGB_FXT1: 131 case MESA_FORMAT_RGBA_FXT1: 132 case MESA_FORMAT_RGB_DXT1: 133 case MESA_FORMAT_RGBA_DXT1: 134 bytes = 2; 135 break; 136 137 case MESA_FORMAT_RGBA_DXT3: 138 case MESA_FORMAT_RGBA_DXT5: 139 bytes = 4; 140 default: 141 break; 142 } 143 144 return bytes; 145} 146 147 148 149 150static GLboolean 151st_IsTextureResident(GLcontext * ctx, struct gl_texture_object *texObj) 152{ 153#if 0 154 struct intel_context *intel = intel_context(ctx); 155 struct st_texture_object *stObj = st_texture_object(texObj); 156 157 return 158 stObj->pt && 159 stObj->pt->region && 160 intel_is_region_resident(intel, stObj->pt->region); 161#endif 162 return 1; 163} 164 165 166 167static struct gl_texture_image * 168st_NewTextureImage(GLcontext * ctx) 169{ 170 DBG("%s\n", __FUNCTION__); 171 (void) ctx; 172 return (struct gl_texture_image *) CALLOC_STRUCT(st_texture_image); 173} 174 175 176static struct gl_texture_object * 177st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 178{ 179 struct st_texture_object *obj = CALLOC_STRUCT(st_texture_object); 180 181 DBG("%s\n", __FUNCTION__); 182 _mesa_initialize_texture_object(&obj->base, name, target); 183 184 return &obj->base; 185} 186 187static void 188st_DeleteTextureObject(GLcontext *ctx, 189 struct gl_texture_object *texObj) 190{ 191 struct st_texture_object *stObj = st_texture_object(texObj); 192 193 if (stObj->pt) 194 ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt); 195 196 _mesa_delete_texture_object(ctx, texObj); 197} 198 199 200static void 201st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 202{ 203 struct st_texture_image *stImage = st_texture_image(texImage); 204 205 DBG("%s\n", __FUNCTION__); 206 207 if (stImage->pt) { 208 ctx->st->pipe->texture_release(ctx->st->pipe, &stImage->pt); 209 } 210 211 if (texImage->Data) { 212 free(texImage->Data); 213 texImage->Data = NULL; 214 } 215} 216 217 218 219 220/* ================================================================ 221 * From linux kernel i386 header files, copes with odd sizes better 222 * than COPY_DWORDS would: 223 * XXX Put this in src/mesa/main/imports.h ??? 224 */ 225#if defined(i386) || defined(__i386__) 226static INLINE void * 227__memcpy(void *to, const void *from, size_t n) 228{ 229 int d0, d1, d2; 230 __asm__ __volatile__("rep ; movsl\n\t" 231 "testb $2,%b4\n\t" 232 "je 1f\n\t" 233 "movsw\n" 234 "1:\ttestb $1,%b4\n\t" 235 "je 2f\n\t" 236 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 237 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 238 :"memory"); 239 return (to); 240} 241#else 242#define __memcpy(a,b,c) memcpy(a,b,c) 243#endif 244 245 246/* The system memcpy (at least on ubuntu 5.10) has problems copying 247 * to agp (writecombined) memory from a source which isn't 64-byte 248 * aligned - there is a 4x performance falloff. 249 * 250 * The x86 __memcpy is immune to this but is slightly slower 251 * (10%-ish) than the system memcpy. 252 * 253 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 254 * isn't much faster than x86_memcpy for agp copies. 255 * 256 * TODO: switch dynamically. 257 */ 258static void * 259do_memcpy(void *dest, const void *src, size_t n) 260{ 261 if ((((unsigned) src) & 63) || (((unsigned) dest) & 63)) { 262 return __memcpy(dest, src, n); 263 } 264 else 265 return memcpy(dest, src, n); 266} 267 268 269/* Functions to store texture images. Where possible, textures 270 * will be created or further instantiated with image data, otherwise 271 * images will be stored in malloc'd memory. A validation step is 272 * required to pull those images into a texture, or otherwise 273 * decide a fallback is required. 274 */ 275 276 277static int 278logbase2(int n) 279{ 280 GLint i = 1; 281 GLint log2 = 0; 282 283 while (n > i) { 284 i *= 2; 285 log2++; 286 } 287 288 return log2; 289} 290 291 292/* Otherwise, store it in memory if (Border != 0) or (any dimension == 293 * 1). 294 * 295 * Otherwise, if max_level >= level >= min_level, create texture with 296 * space for images from min_level down to max_level. 297 * 298 * Otherwise, create texture with space for images from (level 0)..(1x1). 299 * Consider pruning this texture at a validation if the saving is worth it. 300 */ 301static void 302guess_and_alloc_texture(struct st_context *st, 303 struct st_texture_object *stObj, 304 struct st_texture_image *stImage) 305{ 306 GLuint firstLevel; 307 GLuint lastLevel; 308 GLuint width = stImage->base.Width; 309 GLuint height = stImage->base.Height; 310 GLuint depth = stImage->base.Depth; 311 GLuint l2width, l2height, l2depth; 312 GLuint i, comp_byte = 0; 313 314 DBG("%s\n", __FUNCTION__); 315 316 if (stImage->base.Border) 317 return; 318 319 if (stImage->level > stObj->base.BaseLevel && 320 (stImage->base.Width == 1 || 321 (stObj->base.Target != GL_TEXTURE_1D && 322 stImage->base.Height == 1) || 323 (stObj->base.Target == GL_TEXTURE_3D && 324 stImage->base.Depth == 1))) 325 return; 326 327 /* If this image disrespects BaseLevel, allocate from level zero. 328 * Usually BaseLevel == 0, so it's unlikely to happen. 329 */ 330 if (stImage->level < stObj->base.BaseLevel) 331 firstLevel = 0; 332 else 333 firstLevel = stObj->base.BaseLevel; 334 335 336 /* Figure out image dimensions at start level. 337 */ 338 for (i = stImage->level; i > firstLevel; i--) { 339 width <<= 1; 340 if (height != 1) 341 height <<= 1; 342 if (depth != 1) 343 depth <<= 1; 344 } 345 346 /* Guess a reasonable value for lastLevel. This is probably going 347 * to be wrong fairly often and might mean that we have to look at 348 * resizable buffers, or require that buffers implement lazy 349 * pagetable arrangements. 350 */ 351 if ((stObj->base.MinFilter == GL_NEAREST || 352 stObj->base.MinFilter == GL_LINEAR) && 353 stImage->level == firstLevel) { 354 lastLevel = firstLevel; 355 } 356 else { 357 l2width = logbase2(width); 358 l2height = logbase2(height); 359 l2depth = logbase2(depth); 360 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 361 } 362 363 assert(!stObj->pt); 364 if (stImage->base.IsCompressed) 365 comp_byte = compressed_num_bytes(stImage->base.TexFormat->MesaFormat); 366 stObj->pt = st_texture_create(st, 367 gl_target_to_pipe(stObj->base.Target), 368 st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat), 369 stImage->base.InternalFormat, 370 firstLevel, 371 lastLevel, 372 width, 373 height, 374 depth, 375 comp_byte); 376 377 DBG("%s - success\n", __FUNCTION__); 378} 379 380 381 382 383static GLuint 384target_to_face(GLenum target) 385{ 386 switch (target) { 387 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 388 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 389 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 390 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 391 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 392 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 393 return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X); 394 default: 395 return 0; 396 } 397} 398 399 400 401/* There are actually quite a few combinations this will work for, 402 * more than what I've listed here. 403 */ 404static GLboolean 405check_pbo_format(GLint internalFormat, 406 GLenum format, GLenum type, 407 const struct gl_texture_format *mesa_format) 408{ 409 switch (internalFormat) { 410 case 4: 411 case GL_RGBA: 412 return (format == GL_BGRA && 413 (type == GL_UNSIGNED_BYTE || 414 type == GL_UNSIGNED_INT_8_8_8_8_REV) && 415 mesa_format == &_mesa_texformat_argb8888); 416 case 3: 417 case GL_RGB: 418 return (format == GL_RGB && 419 type == GL_UNSIGNED_SHORT_5_6_5 && 420 mesa_format == &_mesa_texformat_rgb565); 421 case GL_YCBCR_MESA: 422 return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE); 423 default: 424 return GL_FALSE; 425 } 426} 427 428 429/* XXX: Do this for TexSubImage also: 430 */ 431static GLboolean 432try_pbo_upload(GLcontext *ctx, 433 struct st_texture_image *stImage, 434 const struct gl_pixelstore_attrib *unpack, 435 GLint internalFormat, 436 GLint width, GLint height, 437 GLenum format, GLenum type, const void *pixels) 438{ 439 return GL_FALSE; /* XXX fix flushing/locking/blitting below */ 440#if 000 441 struct intel_context *intel = intel_context(ctx); 442 struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj); 443 GLuint src_offset, src_stride; 444 GLuint dst_offset, dst_stride; 445 446 if (!pbo || 447 ctx._ImageTransferState || 448 unpack->SkipPixels || unpack->SkipRows) { 449 _mesa_printf("%s: failure 1\n", __FUNCTION__); 450 return GL_FALSE; 451 } 452 453 src_offset = (GLuint) pixels; 454 455 if (unpack->RowLength > 0) 456 src_stride = unpack->RowLength; 457 else 458 src_stride = width; 459 460 dst_offset = st_texture_image_offset(stImage->pt, 461 stImage->face, 462 stImage->level); 463 464 dst_stride = stImage->pt->pitch; 465 466 { 467 struct _DriBufferObject *src_buffer = 468 intel_bufferobj_buffer(intel, pbo, INTEL_READ); 469 470 /* Temporary hack: cast to _DriBufferObject: 471 */ 472 struct _DriBufferObject *dst_buffer = 473 (struct _DriBufferObject *)stImage->pt->region->buffer; 474 475 476 intelEmitCopyBlit(intel, 477 stImage->pt->cpp, 478 src_stride, src_buffer, src_offset, 479 dst_stride, dst_buffer, dst_offset, 480 0, 0, 0, 0, width, height, 481 GL_COPY); 482 } 483 484 return GL_TRUE; 485#endif 486} 487 488 489 490static GLboolean 491try_pbo_zcopy(GLcontext *ctx, 492 struct st_texture_image *stImage, 493 const struct gl_pixelstore_attrib *unpack, 494 GLint internalFormat, 495 GLint width, GLint height, 496 GLenum format, GLenum type, const void *pixels) 497{ 498 return GL_FALSE; 499} 500 501 502 503 504 505 506static void 507st_TexImage(GLcontext * ctx, 508 GLint dims, 509 GLenum target, GLint level, 510 GLint internalFormat, 511 GLint width, GLint height, GLint depth, 512 GLint border, 513 GLenum format, GLenum type, const void *pixels, 514 const struct gl_pixelstore_attrib *unpack, 515 struct gl_texture_object *texObj, 516 struct gl_texture_image *texImage, GLsizei imageSize, int compressed) 517{ 518 struct st_texture_object *stObj = st_texture_object(texObj); 519 struct st_texture_image *stImage = st_texture_image(texImage); 520 GLint postConvWidth = width; 521 GLint postConvHeight = height; 522 GLint texelBytes, sizeInBytes; 523 GLuint dstRowStride; 524 525 526 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 527 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 528 529 stImage->face = target_to_face(target); 530 stImage->level = level; 531 532 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 533 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 534 &postConvHeight); 535 } 536 537 /* choose the texture format */ 538 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 539 format, type); 540 541 _mesa_set_fetch_functions(texImage, dims); 542 543 if (texImage->TexFormat->TexelBytes == 0) { 544 /* must be a compressed format */ 545 texelBytes = 0; 546 texImage->IsCompressed = GL_TRUE; 547 texImage->CompressedSize = 548 ctx->Driver.CompressedTextureSize(ctx, texImage->Width, 549 texImage->Height, texImage->Depth, 550 texImage->TexFormat->MesaFormat); 551 } else { 552 texelBytes = texImage->TexFormat->TexelBytes; 553 554 /* Minimum pitch of 32 bytes */ 555 if (postConvWidth * texelBytes < 32) { 556 postConvWidth = 32 / texelBytes; 557 texImage->RowStride = postConvWidth; 558 } 559 560 assert(texImage->RowStride == postConvWidth); 561 } 562 563 /* Release the reference to a potentially orphaned buffer. 564 * Release any old malloced memory. 565 */ 566 if (stImage->pt) { 567 ctx->st->pipe->texture_release(ctx->st->pipe, &stImage->pt); 568 assert(!texImage->Data); 569 } 570 else if (texImage->Data) { 571 _mesa_align_free(texImage->Data); 572 } 573 574 /* If this is the only texture image in the texture, could call 575 * bmBufferData with NULL data to free the old block and avoid 576 * waiting on any outstanding fences. 577 */ 578 if (stObj->pt && 579 stObj->pt->first_level == level && 580 stObj->pt->last_level == level && 581 stObj->pt->target != PIPE_TEXTURE_CUBE && 582 !st_texture_match_image(stObj->pt, &stImage->base, 583 stImage->face, stImage->level)) { 584 585 DBG("release it\n"); 586 ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt); 587 assert(!stObj->pt); 588 } 589 590 if (!stObj->pt) { 591 guess_and_alloc_texture(ctx->st, stObj, stImage); 592 if (!stObj->pt) { 593 DBG("guess_and_alloc_texture: failed\n"); 594 } 595 } 596 597 assert(!stImage->pt); 598 599 if (stObj->pt && 600 st_texture_match_image(stObj->pt, &stImage->base, 601 stImage->face, stImage->level)) { 602 603 pipe_texture_reference(ctx->st->pipe, &stImage->pt, stObj->pt); 604 assert(stImage->pt); 605 } 606 607 if (!stImage->pt) 608 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 609 610#if 0 /* XXX FIX when st_buffer_objects are in place */ 611 /* PBO fastpaths: 612 */ 613 if (dims <= 2 && 614 stImage->pt && 615 intel_buffer_object(unpack->BufferObj) && 616 check_pbo_format(internalFormat, format, 617 type, texImage->TexFormat)) { 618 619 DBG("trying pbo upload\n"); 620 621 /* Attempt to texture directly from PBO data (zero copy upload). 622 * 623 * Currently disable as it can lead to worse as well as better 624 * performance (in particular when pipe_region_cow() is 625 * required). 626 */ 627 if (stObj->pt == stImage->pt && 628 stObj->pt->first_level == level && 629 stObj->pt->last_level == level) { 630 631 if (try_pbo_zcopy(intel, stImage, unpack, 632 internalFormat, 633 width, height, format, type, pixels)) { 634 635 DBG("pbo zcopy upload succeeded\n"); 636 return; 637 } 638 } 639 640 641 /* Otherwise, attempt to use the blitter for PBO image uploads. 642 */ 643 if (try_pbo_upload(intel, stImage, unpack, 644 internalFormat, 645 width, height, format, type, pixels)) { 646 DBG("pbo upload succeeded\n"); 647 return; 648 } 649 650 DBG("pbo upload failed\n"); 651 } 652#else 653 (void) try_pbo_upload; 654 (void) check_pbo_format; 655 (void) try_pbo_zcopy; 656#endif 657 658 659 /* st_CopyTexImage calls this function with pixels == NULL, with 660 * the expectation that the texture will be set up but nothing 661 * more will be done. This is where those calls return: 662 */ 663 if (compressed) { 664 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 665 unpack, 666 "glCompressedTexImage"); 667 } else { 668 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 669 format, type, 670 pixels, unpack, "glTexImage"); 671 } 672 if (!pixels) 673 return; 674 675 if (stImage->pt) { 676 texImage->Data = st_texture_image_map(ctx->st, stImage, 0); 677 dstRowStride = stImage->surface->pitch * stImage->surface->cpp; 678 } 679 else { 680 /* Allocate regular memory and store the image there temporarily. */ 681 if (texImage->IsCompressed) { 682 sizeInBytes = texImage->CompressedSize; 683 dstRowStride = 684 _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width); 685 assert(dims != 3); 686 } 687 else { 688 dstRowStride = postConvWidth * texelBytes; 689 sizeInBytes = depth * dstRowStride * postConvHeight; 690 } 691 692 texImage->Data = malloc(sizeInBytes); 693 } 694 695 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 696 width, height, depth, width * texelBytes, dstRowStride); 697 698 /* Copy data. Would like to know when it's ok for us to eg. use 699 * the blitter to copy. Or, use the hardware to do the format 700 * conversion and copy: 701 */ 702 if (compressed) { 703 memcpy(texImage->Data, pixels, imageSize); 704 } 705 else { 706 GLuint srcImageStride = _mesa_image_image_stride(unpack, width, height, 707 format, type); 708 int i; 709 710 for (i = 0; i++ < depth;) { 711 if (!texImage->TexFormat->StoreImage(ctx, dims, 712 texImage->_BaseFormat, 713 texImage->TexFormat, 714 texImage->Data, 715 0, 0, 0, /* dstX/Y/Zoffset */ 716 dstRowStride, 717 texImage->ImageOffsets, 718 width, height, 1, 719 format, type, pixels, unpack)) { 720 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 721 } 722 723 if (stImage->pt && i < depth) { 724 st_texture_image_unmap(ctx->st, stImage); 725 texImage->Data = st_texture_image_map(ctx->st, stImage, i); 726 pixels += srcImageStride; 727 } 728 } 729 } 730 731 _mesa_unmap_teximage_pbo(ctx, unpack); 732 733 if (stImage->pt) { 734 st_texture_image_unmap(ctx->st, stImage); 735 texImage->Data = NULL; 736 } 737 738#if 0 739 /* GL_SGIS_generate_mipmap -- this can be accelerated now. 740 */ 741 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 742 intel_generate_mipmap(ctx, target, 743 &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 744 texObj); 745 } 746#endif 747} 748 749 750static void 751st_TexImage3D(GLcontext * ctx, 752 GLenum target, GLint level, 753 GLint internalFormat, 754 GLint width, GLint height, GLint depth, 755 GLint border, 756 GLenum format, GLenum type, const void *pixels, 757 const struct gl_pixelstore_attrib *unpack, 758 struct gl_texture_object *texObj, 759 struct gl_texture_image *texImage) 760{ 761 st_TexImage(ctx, 3, target, level, 762 internalFormat, width, height, depth, border, 763 format, type, pixels, unpack, texObj, texImage, 0, 0); 764} 765 766 767static void 768st_TexImage2D(GLcontext * ctx, 769 GLenum target, GLint level, 770 GLint internalFormat, 771 GLint width, GLint height, GLint border, 772 GLenum format, GLenum type, const void *pixels, 773 const struct gl_pixelstore_attrib *unpack, 774 struct gl_texture_object *texObj, 775 struct gl_texture_image *texImage) 776{ 777 st_TexImage(ctx, 2, target, level, 778 internalFormat, width, height, 1, border, 779 format, type, pixels, unpack, texObj, texImage, 0, 0); 780} 781 782 783static void 784st_TexImage1D(GLcontext * ctx, 785 GLenum target, GLint level, 786 GLint internalFormat, 787 GLint width, GLint border, 788 GLenum format, GLenum type, const void *pixels, 789 const struct gl_pixelstore_attrib *unpack, 790 struct gl_texture_object *texObj, 791 struct gl_texture_image *texImage) 792{ 793 st_TexImage(ctx, 1, target, level, 794 internalFormat, width, 1, 1, border, 795 format, type, pixels, unpack, texObj, texImage, 0, 0); 796} 797 798 799static void 800st_CompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level, 801 GLint internalFormat, 802 GLint width, GLint height, GLint border, 803 GLsizei imageSize, const GLvoid *data, 804 struct gl_texture_object *texObj, 805 struct gl_texture_image *texImage ) 806{ 807 st_TexImage(ctx, 2, target, level, 808 internalFormat, width, height, 1, border, 809 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, 1); 810} 811 812 813/** 814 * Need to map texture image into memory before copying image data, 815 * then unmap it. 816 */ 817static void 818st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 819 GLenum format, GLenum type, GLvoid * pixels, 820 struct gl_texture_object *texObj, 821 struct gl_texture_image *texImage, int compressed) 822{ 823 struct st_texture_image *stImage = st_texture_image(texImage); 824 GLuint dstImageStride = _mesa_image_image_stride(&ctx->Pack, texImage->Width, 825 texImage->Height, format, 826 type); 827 GLuint depth; 828 int i; 829 830 /* Map */ 831 if (stImage->pt) { 832 /* Image is stored in hardware format in a buffer managed by the 833 * kernel. Need to explicitly map and unmap it. 834 */ 835 texImage->Data = st_texture_image_map(ctx->st, stImage, 0); 836 texImage->RowStride = stImage->surface->pitch; 837 } 838 else { 839 /* Otherwise, the image should actually be stored in 840 * texImage->Data. This is pretty confusing for 841 * everybody, I'd much prefer to separate the two functions of 842 * texImage->Data - storage for texture images in main memory 843 * and access (ie mappings) of images. In other words, we'd 844 * create a new texImage->Map field and leave Data simply for 845 * storage. 846 */ 847 assert(texImage->Data); 848 } 849 850 depth = texImage->Depth; 851 texImage->Depth = 1; 852 853 for (i = 0; i++ < depth;) { 854 if (compressed) { 855 _mesa_get_compressed_teximage(ctx, target, level, pixels, 856 texObj, texImage); 857 } else { 858 _mesa_get_teximage(ctx, target, level, format, type, pixels, 859 texObj, texImage); 860 } 861 862 if (stImage->pt && i < depth) { 863 st_texture_image_unmap(ctx->st, stImage); 864 texImage->Data = st_texture_image_map(ctx->st, stImage, i); 865 pixels += dstImageStride; 866 } 867 } 868 869 texImage->Depth = depth; 870 871 /* Unmap */ 872 if (stImage->pt) { 873 st_texture_image_unmap(ctx->st, stImage); 874 texImage->Data = NULL; 875 } 876} 877 878 879static void 880st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 881 GLenum format, GLenum type, GLvoid * pixels, 882 struct gl_texture_object *texObj, 883 struct gl_texture_image *texImage) 884{ 885 st_get_tex_image(ctx, target, level, format, type, pixels, 886 texObj, texImage, 0); 887} 888 889 890static void 891st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 892 GLvoid *pixels, 893 const struct gl_texture_object *texObj, 894 const struct gl_texture_image *texImage) 895{ 896 st_get_tex_image(ctx, target, level, 0, 0, pixels, 897 (struct gl_texture_object *) texObj, 898 (struct gl_texture_image *) texImage, 1); 899} 900 901 902 903static void 904st_TexSubimage(GLcontext * ctx, 905 GLint dims, 906 GLenum target, GLint level, 907 GLint xoffset, GLint yoffset, GLint zoffset, 908 GLint width, GLint height, GLint depth, 909 GLenum format, GLenum type, const void *pixels, 910 const struct gl_pixelstore_attrib *packing, 911 struct gl_texture_object *texObj, 912 struct gl_texture_image *texImage) 913{ 914 struct st_texture_image *stImage = st_texture_image(texImage); 915 GLuint dstRowStride; 916 GLuint srcImageStride = _mesa_image_image_stride(packing, width, height, 917 format, type); 918 int i; 919 920 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 921 _mesa_lookup_enum_by_nr(target), 922 level, xoffset, yoffset, width, height); 923 924 pixels = 925 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 926 type, pixels, packing, "glTexSubImage2D"); 927 if (!pixels) 928 return; 929 930 /* Map buffer if necessary. Need to lock to prevent other contexts 931 * from uploading the buffer under us. 932 */ 933 if (stImage->pt) { 934 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset); 935 dstRowStride = stImage->surface->pitch * stImage->surface->cpp; 936 } 937 938 for (i = 0; i++ < depth;) { 939 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 940 texImage->TexFormat, 941 texImage->Data, 942 xoffset, yoffset, 0, 943 dstRowStride, 944 texImage->ImageOffsets, 945 width, height, 1, 946 format, type, pixels, packing)) { 947 _mesa_error(ctx, GL_OUT_OF_MEMORY, "st_TexSubImage"); 948 } 949 950 if (stImage->pt && i < depth) { 951 st_texture_image_unmap(ctx->st, stImage); 952 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset + i); 953 pixels += srcImageStride; 954 } 955 } 956 957#if 0 958 /* GL_SGIS_generate_mipmap */ 959 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 960 _mesa_generate_mipmap(ctx, target, 961 &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 962 texObj); 963 } 964#endif 965 966 _mesa_unmap_teximage_pbo(ctx, packing); 967 968 if (stImage->pt) { 969 st_texture_image_unmap(ctx->st, stImage); 970 texImage->Data = NULL; 971 } 972} 973 974 975 976static void 977st_TexSubImage3D(GLcontext * ctx, 978 GLenum target, 979 GLint level, 980 GLint xoffset, GLint yoffset, GLint zoffset, 981 GLsizei width, GLsizei height, GLsizei depth, 982 GLenum format, GLenum type, 983 const GLvoid * pixels, 984 const struct gl_pixelstore_attrib *packing, 985 struct gl_texture_object *texObj, 986 struct gl_texture_image *texImage) 987{ 988 st_TexSubimage(ctx, 3, target, level, 989 xoffset, yoffset, zoffset, 990 width, height, depth, 991 format, type, pixels, packing, texObj, texImage); 992} 993 994 995 996static void 997st_TexSubImage2D(GLcontext * ctx, 998 GLenum target, 999 GLint level, 1000 GLint xoffset, GLint yoffset, 1001 GLsizei width, GLsizei height, 1002 GLenum format, GLenum type, 1003 const GLvoid * pixels, 1004 const struct gl_pixelstore_attrib *packing, 1005 struct gl_texture_object *texObj, 1006 struct gl_texture_image *texImage) 1007{ 1008 st_TexSubimage(ctx, 2, target, level, 1009 xoffset, yoffset, 0, 1010 width, height, 1, 1011 format, type, pixels, packing, texObj, texImage); 1012} 1013 1014 1015static void 1016st_TexSubImage1D(GLcontext * ctx, 1017 GLenum target, 1018 GLint level, 1019 GLint xoffset, 1020 GLsizei width, 1021 GLenum format, GLenum type, 1022 const GLvoid * pixels, 1023 const struct gl_pixelstore_attrib *packing, 1024 struct gl_texture_object *texObj, 1025 struct gl_texture_image *texImage) 1026{ 1027 st_TexSubimage(ctx, 1, target, level, 1028 xoffset, 0, 0, 1029 width, 1, 1, 1030 format, type, pixels, packing, texObj, texImage); 1031} 1032 1033 1034 1035/** 1036 * Return 0 for GL_TEXTURE_CUBE_MAP_POSITIVE_X, 1037 * 1 for GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 1038 * etc. 1039 * XXX duplicated from main/teximage.c 1040 */ 1041static uint 1042texture_face(GLenum target) 1043{ 1044 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 1045 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) 1046 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; 1047 else 1048 return 0; 1049} 1050 1051 1052 1053/** 1054 * Do a CopyTexSubImage operation by mapping the source region and 1055 * dest region and using get_tile()/put_tile() to access the pixels/texels. 1056 * 1057 * Note: srcY=0=TOP of renderbuffer 1058 */ 1059static void 1060fallback_copy_texsubimage(GLcontext *ctx, 1061 GLenum target, 1062 GLint level, 1063 struct st_renderbuffer *strb, 1064 struct st_texture_image *stImage, 1065 GLenum baseFormat, 1066 GLint destX, GLint destY, GLint destZ, 1067 GLint srcX, GLint srcY, 1068 GLsizei width, GLsizei height) 1069{ 1070 struct pipe_context *pipe = ctx->st->pipe; 1071 const uint face = texture_face(target); 1072 struct pipe_texture *pt = stImage->pt; 1073 struct pipe_surface *src_surf, *dest_surf; 1074 GLfloat *data; 1075 GLint row, yStep; 1076 1077 /* determine bottom-to-top vs. top-to-bottom order */ 1078 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1079 destY = height - 1 - destY; 1080 yStep = -1; 1081 } 1082 else { 1083 yStep = 1; 1084 } 1085 1086 src_surf = strb->surface; 1087 1088 dest_surf = pipe->get_tex_surface(pipe, pt, 1089 face, level, destZ); 1090 1091 (void) pipe->region_map(pipe, dest_surf->region); 1092 (void) pipe->region_map(pipe, src_surf->region); 1093 1094 /* buffer for one row */ 1095 data = (GLfloat *) malloc(width * 4 * sizeof(GLfloat)); 1096 1097 /* do copy row by row */ 1098 for (row = 0; row < height; row++) { 1099 pipe->get_tile_rgba(pipe, src_surf, srcX, srcY + row, width, 1, data); 1100 1101 /* XXX we're ignoring convolution for now */ 1102 if (ctx->_ImageTransferState) { 1103 _mesa_apply_rgba_transfer_ops(ctx, 1104 ctx->_ImageTransferState & ~IMAGE_CONVOLUTION_BIT, 1105 width, (GLfloat (*)[4])data); 1106 } 1107 1108 pipe->put_tile_rgba(pipe, dest_surf, destX, destY, width, 1, data); 1109 destY += yStep; 1110 } 1111 1112 1113 (void) pipe->region_unmap(pipe, dest_surf->region); 1114 (void) pipe->region_unmap(pipe, src_surf->region); 1115 1116 free(data); 1117} 1118 1119 1120 1121 1122/** 1123 * Do a CopyTex[Sub]Image using an optimized hardware (blit) path. 1124 * Note that the region to copy has already been clip tested. 1125 * 1126 * Note: srcY=0=Bottom of renderbuffer 1127 * 1128 * \return GL_TRUE if success, GL_FALSE if failure (use a fallback) 1129 */ 1130static void 1131do_copy_texsubimage(GLcontext *ctx, 1132 GLenum target, GLint level, 1133 GLint destX, GLint destY, GLint destZ, 1134 GLint srcX, GLint srcY, 1135 GLsizei width, GLsizei height) 1136{ 1137 struct gl_texture_unit *texUnit = 1138 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1139 struct gl_texture_object *texObj = 1140 _mesa_select_tex_object(ctx, texUnit, target); 1141 struct gl_texture_image *texImage = 1142 _mesa_select_tex_image(ctx, texObj, target, level); 1143 struct st_texture_image *stImage = st_texture_image(texImage); 1144 GLenum baseFormat = texImage->InternalFormat; 1145 struct gl_framebuffer *fb = ctx->ReadBuffer; 1146 struct st_renderbuffer *strb; 1147 struct pipe_context *pipe = ctx->st->pipe; 1148 struct pipe_surface *dest_surface; 1149 uint dest_format, src_format; 1150 1151 (void) texImage; 1152 1153 /* determine if copying depth or color data */ 1154 if (baseFormat == GL_DEPTH_COMPONENT) { 1155 strb = st_renderbuffer(fb->_DepthBuffer); 1156 } 1157 else if (baseFormat == GL_DEPTH_STENCIL_EXT) { 1158 strb = st_renderbuffer(fb->_StencilBuffer); 1159 } 1160 else { 1161 /* baseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1162 strb = st_renderbuffer(fb->_ColorReadBuffer); 1163 } 1164 1165 assert(strb); 1166 assert(strb->surface); 1167 assert(stImage->pt); 1168 1169 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1170 srcY = strb->Base.Height - srcY - height; 1171 } 1172 1173 src_format = strb->surface->format; 1174 dest_format = stImage->pt->format; 1175 1176 dest_surface = pipe->get_tex_surface(pipe, stImage->pt, stImage->face, 1177 stImage->level, destZ); 1178 1179 if (src_format == dest_format && 1180 ctx->_ImageTransferState == 0x0 && 1181 strb->surface->region && 1182 dest_surface->region && 1183 strb->surface->cpp == stImage->pt->cpp) { 1184 /* do blit-style copy */ 1185 1186 /* XXX may need to invert image depending on window 1187 * vs. user-created FBO 1188 */ 1189 1190#if 0 1191 /* A bit of fiddling to get the blitter to work with -ve 1192 * pitches. But we get a nice inverted blit this way, so it's 1193 * worth it: 1194 */ 1195 intelEmitCopyBlit(intel, 1196 stImage->pt->cpp, 1197 -src->pitch, 1198 src->buffer, 1199 src->height * src->pitch * src->cpp, 1200 stImage->pt->pitch, 1201 stImage->pt->region->buffer, 1202 dest_offset, 1203 x, y + height, dstx, dsty, width, height, 1204 GL_COPY); /* ? */ 1205#else 1206 1207 pipe->surface_copy(pipe, 1208 /* dest */ 1209 dest_surface, 1210 destX, destY, 1211 /* src */ 1212 strb->surface, 1213 srcX, srcY, 1214 /* size */ 1215 width, height); 1216#endif 1217 } 1218 else { 1219 fallback_copy_texsubimage(ctx, target, level, 1220 strb, stImage, baseFormat, 1221 destX, destY, destZ, 1222 srcX, srcY, width, height); 1223 } 1224 1225 pipe_surface_reference(&dest_surface, NULL); 1226 1227#if 0 1228 /* GL_SGIS_generate_mipmap -- this can be accelerated now. 1229 * XXX Add a ctx->Driver.GenerateMipmaps() function? 1230 */ 1231 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1232 intel_generate_mipmap(ctx, target, 1233 &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 1234 texObj); 1235 } 1236#endif 1237 1238} 1239 1240 1241 1242static void 1243st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1244 GLenum internalFormat, 1245 GLint x, GLint y, GLsizei width, GLint border) 1246{ 1247 struct gl_texture_unit *texUnit = 1248 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1249 struct gl_texture_object *texObj = 1250 _mesa_select_tex_object(ctx, texUnit, target); 1251 struct gl_texture_image *texImage = 1252 _mesa_select_tex_image(ctx, texObj, target, level); 1253 1254#if 0 1255 if (border) 1256 goto fail; 1257#endif 1258 1259 /* Setup or redefine the texture object, texture and texture 1260 * image. Don't populate yet. 1261 */ 1262 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1263 width, border, 1264 GL_RGBA, CHAN_TYPE, NULL, 1265 &ctx->DefaultPacking, texObj, texImage); 1266 1267 do_copy_texsubimage(ctx, target, level, 1268 0, 0, 0, 1269 x, y, width, 1); 1270} 1271 1272 1273static void 1274st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1275 GLenum internalFormat, 1276 GLint x, GLint y, GLsizei width, GLsizei height, 1277 GLint border) 1278{ 1279 struct gl_texture_unit *texUnit = 1280 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1281 struct gl_texture_object *texObj = 1282 _mesa_select_tex_object(ctx, texUnit, target); 1283 struct gl_texture_image *texImage = 1284 _mesa_select_tex_image(ctx, texObj, target, level); 1285 1286#if 0 1287 if (border) 1288 goto fail; 1289#endif 1290 1291 /* Setup or redefine the texture object, texture and texture 1292 * image. Don't populate yet. 1293 */ 1294 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1295 width, height, border, 1296 GL_RGBA, CHAN_TYPE, NULL, 1297 &ctx->DefaultPacking, texObj, texImage); 1298 1299 1300 do_copy_texsubimage(ctx, target, level, 1301 0, 0, 0, 1302 x, y, width, height); 1303} 1304 1305 1306static void 1307st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1308 GLint xoffset, GLint x, GLint y, GLsizei width) 1309{ 1310 const GLint yoffset = 0, zoffset = 0; 1311 const GLsizei height = 1; 1312 do_copy_texsubimage(ctx, target, level, 1313 xoffset, yoffset, zoffset, 1314 x, y, width, height); 1315} 1316 1317 1318static void 1319st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1320 GLint xoffset, GLint yoffset, 1321 GLint x, GLint y, GLsizei width, GLsizei height) 1322{ 1323 const GLint zoffset = 0; 1324 do_copy_texsubimage(ctx, target, level, 1325 xoffset, yoffset, zoffset, 1326 x, y, width, height); 1327} 1328 1329 1330static void 1331st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1332 GLint xoffset, GLint yoffset, GLint zoffset, 1333 GLint x, GLint y, GLsizei width, GLsizei height) 1334{ 1335 do_copy_texsubimage(ctx, target, level, 1336 xoffset, yoffset, zoffset, 1337 x, y, width, height); 1338} 1339 1340 1341 1342 1343/** 1344 * Compute which mipmap levels that really need to be sent to the hardware. 1345 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1346 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1347 */ 1348static void 1349calculate_first_last_level(struct st_texture_object *stObj) 1350{ 1351 struct gl_texture_object *tObj = &stObj->base; 1352 const struct gl_texture_image *const baseImage = 1353 tObj->Image[0][tObj->BaseLevel]; 1354 1355 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1356 * and having firstLevel and lastLevel as signed prevents the need for 1357 * extra sign checks. 1358 */ 1359 int firstLevel; 1360 int lastLevel; 1361 1362 /* Yes, this looks overly complicated, but it's all needed. 1363 */ 1364 switch (tObj->Target) { 1365 case GL_TEXTURE_1D: 1366 case GL_TEXTURE_2D: 1367 case GL_TEXTURE_3D: 1368 case GL_TEXTURE_CUBE_MAP: 1369 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1370 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1371 */ 1372 firstLevel = lastLevel = tObj->BaseLevel; 1373 } 1374 else { 1375 firstLevel = tObj->BaseLevel + (GLint) (tObj->MinLod + 0.5); 1376 firstLevel = MAX2(firstLevel, tObj->BaseLevel); 1377 lastLevel = tObj->BaseLevel + (GLint) (tObj->MaxLod + 0.5); 1378 lastLevel = MAX2(lastLevel, tObj->BaseLevel); 1379 lastLevel = MIN2(lastLevel, tObj->BaseLevel + baseImage->MaxLog2); 1380 lastLevel = MIN2(lastLevel, tObj->MaxLevel); 1381 lastLevel = MAX2(firstLevel, lastLevel); /* need at least one level */ 1382 } 1383 break; 1384 case GL_TEXTURE_RECTANGLE_NV: 1385 case GL_TEXTURE_4D_SGIS: 1386 firstLevel = lastLevel = 0; 1387 break; 1388 default: 1389 return; 1390 } 1391 1392 /* save these values */ 1393 stObj->firstLevel = firstLevel; 1394 stObj->lastLevel = lastLevel; 1395} 1396 1397 1398static void 1399copy_image_data_to_texture(struct st_context *st, 1400 struct st_texture_object *stObj, 1401 struct st_texture_image *stImage) 1402{ 1403 if (stImage->pt) { 1404 /* Copy potentially with the blitter: 1405 */ 1406 st_texture_image_copy(st->pipe, 1407 stObj->pt, /* dest texture */ 1408 stImage->face, stImage->level, 1409 stImage->pt /* src texture */ 1410 ); 1411 1412 st->pipe->texture_release(st->pipe, &stImage->pt); 1413 } 1414 else { 1415 assert(stImage->base.Data != NULL); 1416 1417 /* More straightforward upload. 1418 */ 1419 st_texture_image_data(st->pipe, 1420 stObj->pt, 1421 stImage->face, 1422 stImage->level, 1423 stImage->base.Data, 1424 stImage->base.RowStride, 1425 stImage->base.RowStride * 1426 stImage->base.Height); 1427 _mesa_align_free(stImage->base.Data); 1428 stImage->base.Data = NULL; 1429 } 1430 1431 pipe_texture_reference(st->pipe, &stImage->pt, stObj->pt); 1432} 1433 1434 1435/* 1436 */ 1437GLboolean 1438st_finalize_texture(GLcontext *ctx, 1439 struct pipe_context *pipe, GLuint unit, 1440 GLboolean *needFlush) 1441{ 1442 struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current; 1443 struct st_texture_object *stObj = st_texture_object(tObj); 1444 int comp_byte = 0; 1445 int cpp; 1446 1447 GLuint face, i; 1448 GLuint nr_faces = 0; 1449 struct st_texture_image *firstImage; 1450 1451 *needFlush = GL_FALSE; 1452 1453 /* We know/require this is true by now: 1454 */ 1455 assert(stObj->base._Complete); 1456 1457 /* What levels must the texture include at a minimum? 1458 */ 1459 calculate_first_last_level(stObj); 1460 firstImage = 1461 st_texture_image(stObj->base.Image[0][stObj->firstLevel]); 1462 1463 /* Fallback case: 1464 */ 1465 if (firstImage->base.Border) { 1466 if (stObj->pt) { 1467 ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt); 1468 } 1469 return GL_FALSE; 1470 } 1471 1472 1473 /* If both firstImage and stObj point to a texture which can contain 1474 * all active images, favour firstImage. Note that because of the 1475 * completeness requirement, we know that the image dimensions 1476 * will match. 1477 */ 1478 if (firstImage->pt && 1479 firstImage->pt != stObj->pt && 1480 firstImage->pt->first_level <= stObj->firstLevel && 1481 firstImage->pt->last_level >= stObj->lastLevel) { 1482 1483 if (stObj->pt) 1484 ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt); 1485 1486 pipe_texture_reference(ctx->st->pipe, &stObj->pt, firstImage->pt); 1487 } 1488 1489 if (firstImage->base.IsCompressed) { 1490 comp_byte = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1491 cpp = comp_byte; 1492 } 1493 else { 1494 cpp = firstImage->base.TexFormat->TexelBytes; 1495 } 1496 1497 /* Check texture can hold all active levels. Check texture matches 1498 * target, imageFormat, etc. 1499 * 1500 * XXX: For some layouts (eg i945?), the test might have to be 1501 * first_level == firstLevel, as the texture isn't valid except at the 1502 * original start level. Hope to get around this by 1503 * programming minLod, maxLod, baseLevel into the hardware and 1504 * leaving the texture alone. 1505 */ 1506 if (stObj->pt && 1507 (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1508 stObj->pt->internal_format != firstImage->base.InternalFormat || 1509 stObj->pt->first_level != stObj->firstLevel || 1510 stObj->pt->last_level != stObj->lastLevel || 1511 stObj->pt->width[0] != firstImage->base.Width || 1512 stObj->pt->height[0] != firstImage->base.Height || 1513 stObj->pt->depth[0] != firstImage->base.Depth || 1514 stObj->pt->cpp != cpp || 1515 stObj->pt->compressed != firstImage->base.IsCompressed)) { 1516 ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt); 1517 } 1518 1519 1520 /* May need to create a new texture: 1521 */ 1522 if (!stObj->pt) { 1523 stObj->pt = st_texture_create(ctx->st, 1524 gl_target_to_pipe(stObj->base.Target), 1525 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat), 1526 firstImage->base.InternalFormat, 1527 stObj->firstLevel, 1528 stObj->lastLevel, 1529 firstImage->base.Width, 1530 firstImage->base.Height, 1531 firstImage->base.Depth, 1532 comp_byte); 1533 } 1534 1535 /* Pull in any images not in the object's texture: 1536 */ 1537 nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1538 for (face = 0; face < nr_faces; face++) { 1539 for (i = stObj->firstLevel; i <= stObj->lastLevel; i++) { 1540 struct st_texture_image *stImage = 1541 st_texture_image(stObj->base.Image[face][i]); 1542 1543 /* Need to import images in main memory or held in other textures. 1544 */ 1545 if (stObj->pt != stImage->pt) { 1546 copy_image_data_to_texture(ctx->st, stObj, stImage); 1547 *needFlush = GL_TRUE; 1548 } 1549 } 1550 } 1551 1552 1553 return GL_TRUE; 1554} 1555 1556 1557 1558 1559void 1560st_init_texture_functions(struct dd_function_table *functions) 1561{ 1562 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1563 functions->TexImage1D = st_TexImage1D; 1564 functions->TexImage2D = st_TexImage2D; 1565 functions->TexImage3D = st_TexImage3D; 1566 functions->TexSubImage1D = st_TexSubImage1D; 1567 functions->TexSubImage2D = st_TexSubImage2D; 1568 functions->TexSubImage3D = st_TexSubImage3D; 1569 functions->CopyTexImage1D = st_CopyTexImage1D; 1570 functions->CopyTexImage2D = st_CopyTexImage2D; 1571 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1572 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1573 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1574 1575 functions->GetTexImage = st_GetTexImage; 1576 1577 /* compressed texture functions */ 1578 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1579 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1580 1581 functions->NewTextureObject = st_NewTextureObject; 1582 functions->NewTextureImage = st_NewTextureImage; 1583 functions->DeleteTexture = st_DeleteTextureObject; 1584 functions->FreeTexImageData = st_FreeTextureImageData; 1585 functions->UpdateTexturePalette = 0; 1586 functions->IsTextureResident = st_IsTextureResident; 1587 1588 functions->TextureMemCpy = do_memcpy; 1589 1590 /* XXX Temporary until we can query pipe's texture sizes */ 1591 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1592} 1593