st_cb_texture.c revision d4074c509b5d28be0a2ec51d40329e1aed7047ef
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/mipmap.h" 34#include "main/pixel.h" 35#include "main/texcompress.h" 36#include "main/texformat.h" 37#include "main/teximage.h" 38#include "main/texobj.h" 39#include "main/texstore.h" 40 41#include "state_tracker/st_context.h" 42#include "state_tracker/st_cb_fbo.h" 43#include "state_tracker/st_cb_texture.h" 44#include "state_tracker/st_format.h" 45#include "state_tracker/st_public.h" 46#include "state_tracker/st_texture.h" 47#include "state_tracker/st_gen_mipmap.h" 48 49#include "pipe/p_context.h" 50#include "pipe/p_defines.h" 51#include "pipe/p_inlines.h" 52#include "util/p_tile.h" 53#include "util/u_blit.h" 54 55 56#define DBG if (0) printf 57 58 59static INLINE struct st_texture_image * 60st_texture_image(struct gl_texture_image *img) 61{ 62 return (struct st_texture_image *) img; 63} 64 65 66static enum pipe_texture_target 67gl_target_to_pipe(GLenum target) 68{ 69 switch (target) { 70 case GL_TEXTURE_1D: 71 return PIPE_TEXTURE_1D; 72 73 case GL_TEXTURE_2D: 74 case GL_TEXTURE_RECTANGLE_NV: 75 return PIPE_TEXTURE_2D; 76 77 case GL_TEXTURE_3D: 78 return PIPE_TEXTURE_3D; 79 80 case GL_TEXTURE_CUBE_MAP_ARB: 81 return PIPE_TEXTURE_CUBE; 82 83 default: 84 assert(0); 85 return 0; 86 } 87} 88 89 90/** 91 * Return nominal bytes per texel for a compressed format, 0 for non-compressed 92 * format. 93 */ 94static int 95compressed_num_bytes(GLuint mesaFormat) 96{ 97 switch(mesaFormat) { 98 case MESA_FORMAT_RGB_FXT1: 99 case MESA_FORMAT_RGBA_FXT1: 100 case MESA_FORMAT_RGB_DXT1: 101 case MESA_FORMAT_RGBA_DXT1: 102 return 2; 103 case MESA_FORMAT_RGBA_DXT3: 104 case MESA_FORMAT_RGBA_DXT5: 105 return 4; 106 default: 107 return 0; 108 } 109} 110 111 112static GLboolean 113st_IsTextureResident(GLcontext * ctx, struct gl_texture_object *texObj) 114{ 115#if 0 116 struct intel_context *intel = intel_context(ctx); 117 struct st_texture_object *stObj = st_texture_object(texObj); 118 119 return 120 stObj->pt && 121 stObj->pt->region && 122 intel_is_region_resident(intel, stObj->pt->region); 123#endif 124 return 1; 125} 126 127 128static struct gl_texture_image * 129st_NewTextureImage(GLcontext * ctx) 130{ 131 DBG("%s\n", __FUNCTION__); 132 (void) ctx; 133 return (struct gl_texture_image *) CALLOC_STRUCT(st_texture_image); 134} 135 136 137static struct gl_texture_object * 138st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 139{ 140 struct st_texture_object *obj = CALLOC_STRUCT(st_texture_object); 141 142 DBG("%s\n", __FUNCTION__); 143 _mesa_initialize_texture_object(&obj->base, name, target); 144 145 return &obj->base; 146} 147 148static void 149st_DeleteTextureObject(GLcontext *ctx, 150 struct gl_texture_object *texObj) 151{ 152 struct st_texture_object *stObj = st_texture_object(texObj); 153 if (stObj->pt) 154 pipe_texture_release(&stObj->pt); 155 156 _mesa_delete_texture_object(ctx, texObj); 157} 158 159 160static void 161st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 162{ 163 struct st_texture_image *stImage = st_texture_image(texImage); 164 165 DBG("%s\n", __FUNCTION__); 166 167 if (stImage->pt) { 168 pipe_texture_release(&stImage->pt); 169 } 170 171 if (texImage->Data) { 172 free(texImage->Data); 173 texImage->Data = NULL; 174 } 175} 176 177 178/* ================================================================ 179 * From linux kernel i386 header files, copes with odd sizes better 180 * than COPY_DWORDS would: 181 * XXX Put this in src/mesa/main/imports.h ??? 182 */ 183#if defined(i386) || defined(__i386__) 184static INLINE void * 185__memcpy(void *to, const void *from, size_t n) 186{ 187 int d0, d1, d2; 188 __asm__ __volatile__("rep ; movsl\n\t" 189 "testb $2,%b4\n\t" 190 "je 1f\n\t" 191 "movsw\n" 192 "1:\ttestb $1,%b4\n\t" 193 "je 2f\n\t" 194 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 195 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 196 :"memory"); 197 return (to); 198} 199#else 200#define __memcpy(a,b,c) memcpy(a,b,c) 201#endif 202 203 204/* The system memcpy (at least on ubuntu 5.10) has problems copying 205 * to agp (writecombined) memory from a source which isn't 64-byte 206 * aligned - there is a 4x performance falloff. 207 * 208 * The x86 __memcpy is immune to this but is slightly slower 209 * (10%-ish) than the system memcpy. 210 * 211 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 212 * isn't much faster than x86_memcpy for agp copies. 213 * 214 * TODO: switch dynamically. 215 */ 216static void * 217do_memcpy(void *dest, const void *src, size_t n) 218{ 219 if ((((unsigned) src) & 63) || (((unsigned) dest) & 63)) { 220 return __memcpy(dest, src, n); 221 } 222 else 223 return memcpy(dest, src, n); 224} 225 226 227/* Functions to store texture images. Where possible, textures 228 * will be created or further instantiated with image data, otherwise 229 * images will be stored in malloc'd memory. A validation step is 230 * required to pull those images into a texture, or otherwise 231 * decide a fallback is required. 232 */ 233 234 235static int 236logbase2(int n) 237{ 238 GLint i = 1; 239 GLint log2 = 0; 240 241 while (n > i) { 242 i *= 2; 243 log2++; 244 } 245 246 return log2; 247} 248 249 250/** 251 * Allocate a pipe_texture object for the given st_texture_object using 252 * the given st_texture_image to guess the mipmap size/levels. 253 * 254 * [comments...] 255 * Otherwise, store it in memory if (Border != 0) or (any dimension == 256 * 1). 257 * 258 * Otherwise, if max_level >= level >= min_level, create texture with 259 * space for images from min_level down to max_level. 260 * 261 * Otherwise, create texture with space for images from (level 0)..(1x1). 262 * Consider pruning this texture at a validation if the saving is worth it. 263 */ 264static void 265guess_and_alloc_texture(struct st_context *st, 266 struct st_texture_object *stObj, 267 const struct st_texture_image *stImage) 268{ 269 GLuint firstLevel; 270 GLuint lastLevel; 271 GLuint width = stImage->base.Width2; /* size w/out border */ 272 GLuint height = stImage->base.Height2; 273 GLuint depth = stImage->base.Depth2; 274 GLuint i, comp_byte = 0; 275 276 DBG("%s\n", __FUNCTION__); 277 278 assert(!stObj->pt); 279 280 if (stObj->pt && 281 stImage->level > stObj->base.BaseLevel && 282 (stImage->base.Width == 1 || 283 (stObj->base.Target != GL_TEXTURE_1D && 284 stImage->base.Height == 1) || 285 (stObj->base.Target == GL_TEXTURE_3D && 286 stImage->base.Depth == 1))) 287 return; 288 289 /* If this image disrespects BaseLevel, allocate from level zero. 290 * Usually BaseLevel == 0, so it's unlikely to happen. 291 */ 292 if (stImage->level < stObj->base.BaseLevel) 293 firstLevel = 0; 294 else 295 firstLevel = stObj->base.BaseLevel; 296 297 298 /* Figure out image dimensions at start level. 299 */ 300 for (i = stImage->level; i > firstLevel; i--) { 301 if (width != 1) 302 width <<= 1; 303 if (height != 1) 304 height <<= 1; 305 if (depth != 1) 306 depth <<= 1; 307 } 308 309 /* Guess a reasonable value for lastLevel. This is probably going 310 * to be wrong fairly often and might mean that we have to look at 311 * resizable buffers, or require that buffers implement lazy 312 * pagetable arrangements. 313 */ 314 if ((stObj->base.MinFilter == GL_NEAREST || 315 stObj->base.MinFilter == GL_LINEAR) && 316 stImage->level == firstLevel) { 317 lastLevel = firstLevel; 318 } 319 else { 320 GLuint l2width = logbase2(width); 321 GLuint l2height = logbase2(height); 322 GLuint l2depth = logbase2(depth); 323 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 324 } 325 326 if (stImage->base.IsCompressed) 327 comp_byte = compressed_num_bytes(stImage->base.TexFormat->MesaFormat); 328 329 stObj->pt = st_texture_create(st, 330 gl_target_to_pipe(stObj->base.Target), 331 st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat), 332 lastLevel, 333 width, 334 height, 335 depth, 336 comp_byte); 337 338 DBG("%s - success\n", __FUNCTION__); 339} 340 341 342/* There are actually quite a few combinations this will work for, 343 * more than what I've listed here. 344 */ 345static GLboolean 346check_pbo_format(GLint internalFormat, 347 GLenum format, GLenum type, 348 const struct gl_texture_format *mesa_format) 349{ 350 switch (internalFormat) { 351 case 4: 352 case GL_RGBA: 353 return (format == GL_BGRA && 354 (type == GL_UNSIGNED_BYTE || 355 type == GL_UNSIGNED_INT_8_8_8_8_REV) && 356 mesa_format == &_mesa_texformat_argb8888); 357 case 3: 358 case GL_RGB: 359 return (format == GL_RGB && 360 type == GL_UNSIGNED_SHORT_5_6_5 && 361 mesa_format == &_mesa_texformat_rgb565); 362 case GL_YCBCR_MESA: 363 return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE); 364 default: 365 return GL_FALSE; 366 } 367} 368 369 370/* XXX: Do this for TexSubImage also: 371 */ 372static GLboolean 373try_pbo_upload(GLcontext *ctx, 374 struct st_texture_image *stImage, 375 const struct gl_pixelstore_attrib *unpack, 376 GLint internalFormat, 377 GLint width, GLint height, 378 GLenum format, GLenum type, const void *pixels) 379{ 380 return GL_FALSE; /* XXX fix flushing/locking/blitting below */ 381#if 000 382 struct intel_context *intel = intel_context(ctx); 383 struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj); 384 GLuint src_offset, src_stride; 385 GLuint dst_offset, dst_stride; 386 387 if (!pbo || 388 ctx._ImageTransferState || 389 unpack->SkipPixels || unpack->SkipRows) { 390 _mesa_printf("%s: failure 1\n", __FUNCTION__); 391 return GL_FALSE; 392 } 393 394 src_offset = (GLuint) pixels; 395 396 if (unpack->RowLength > 0) 397 src_stride = unpack->RowLength; 398 else 399 src_stride = width; 400 401 dst_offset = st_texture_image_offset(stImage->pt, 402 stImage->face, 403 stImage->level); 404 405 dst_stride = stImage->pt->pitch; 406 407 { 408 struct _DriBufferObject *src_buffer = 409 intel_bufferobj_buffer(intel, pbo, INTEL_READ); 410 411 /* Temporary hack: cast to _DriBufferObject: 412 */ 413 struct _DriBufferObject *dst_buffer = 414 (struct _DriBufferObject *)stImage->pt->region->buffer; 415 416 417 intelEmitCopyBlit(intel, 418 stImage->pt->cpp, 419 src_stride, src_buffer, src_offset, 420 dst_stride, dst_buffer, dst_offset, 421 0, 0, 0, 0, width, height, 422 GL_COPY); 423 } 424 425 return GL_TRUE; 426#endif 427} 428 429 430/** 431 * Adjust pixel unpack params and image dimensions to strip off the 432 * texture border. 433 * Gallium doesn't support texture borders. They've seldem been used 434 * and seldom been implemented correctly anyway. 435 * \param unpackNew returns the new pixel unpack parameters 436 */ 437static void 438strip_texture_border(GLint border, 439 GLint *width, GLint *height, GLint *depth, 440 const struct gl_pixelstore_attrib *unpack, 441 struct gl_pixelstore_attrib *unpackNew) 442{ 443 assert(border > 0); /* sanity check */ 444 445 *unpackNew = *unpack; 446 447 if (unpackNew->RowLength == 0) 448 unpackNew->RowLength = *width; 449 450 if (depth && unpackNew->ImageHeight == 0) 451 unpackNew->ImageHeight = *height; 452 453 unpackNew->SkipPixels += border; 454 if (height) 455 unpackNew->SkipRows += border; 456 if (depth) 457 unpackNew->SkipImages += border; 458 459 assert(*width >= 3); 460 *width = *width - 2 * border; 461 if (height && *height >= 3) 462 *height = *height - 2 * border; 463 if (depth && *depth >= 3) 464 *depth = *depth - 2 * border; 465} 466 467 468static void 469st_TexImage(GLcontext * ctx, 470 GLint dims, 471 GLenum target, GLint level, 472 GLint internalFormat, 473 GLint width, GLint height, GLint depth, 474 GLint border, 475 GLenum format, GLenum type, const void *pixels, 476 const struct gl_pixelstore_attrib *unpack, 477 struct gl_texture_object *texObj, 478 struct gl_texture_image *texImage, 479 GLsizei imageSize, int compressed) 480{ 481 struct pipe_context *pipe = ctx->st->pipe; 482 struct st_texture_object *stObj = st_texture_object(texObj); 483 struct st_texture_image *stImage = st_texture_image(texImage); 484 GLint postConvWidth, postConvHeight; 485 GLint texelBytes, sizeInBytes; 486 GLuint dstRowStride; 487 struct gl_pixelstore_attrib unpackNB; 488 489 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 490 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 491 492 /* gallium does not support texture borders, strip it off */ 493 if (border) { 494 strip_texture_border(border, &width, &height, &depth, 495 unpack, &unpackNB); 496 unpack = &unpackNB; 497 texImage->Width = width; 498 texImage->Height = height; 499 texImage->Depth = depth; 500 texImage->Border = 0; 501 border = 0; 502 } 503 504 postConvWidth = width; 505 postConvHeight = height; 506 507 stImage->face = _mesa_tex_target_to_face(target); 508 stImage->level = level; 509 510 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 511 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 512 &postConvHeight); 513 } 514 515 /* choose the texture format */ 516 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 517 format, type); 518 519 _mesa_set_fetch_functions(texImage, dims); 520 521 if (texImage->TexFormat->TexelBytes == 0) { 522 /* must be a compressed format */ 523 texelBytes = 0; 524 texImage->IsCompressed = GL_TRUE; 525 texImage->CompressedSize = 526 ctx->Driver.CompressedTextureSize(ctx, texImage->Width, 527 texImage->Height, texImage->Depth, 528 texImage->TexFormat->MesaFormat); 529 } 530 else { 531 texelBytes = texImage->TexFormat->TexelBytes; 532 533 /* Minimum pitch of 32 bytes */ 534 if (postConvWidth * texelBytes < 32) { 535 postConvWidth = 32 / texelBytes; 536 texImage->RowStride = postConvWidth; 537 } 538 539 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 540 /*assert(texImage->RowStride == postConvWidth);*/ 541 } 542 543 /* Release the reference to a potentially orphaned buffer. 544 * Release any old malloced memory. 545 */ 546 if (stImage->pt) { 547 pipe_texture_release(&stImage->pt); 548 assert(!texImage->Data); 549 } 550 else if (texImage->Data) { 551 _mesa_align_free(texImage->Data); 552 } 553 554 /* If this is the only mipmap level in the texture, could call 555 * bmBufferData with NULL data to free the old block and avoid 556 * waiting on any outstanding fences. 557 */ 558 if (stObj->pt && 559 (stObj->teximage_realloc || 560 (/*stObj->pt->first_level == level &&*/ 561 stObj->pt->last_level == level && 562 stObj->pt->target != PIPE_TEXTURE_CUBE && 563 !st_texture_match_image(stObj->pt, &stImage->base, 564 stImage->face, stImage->level)))) { 565 566 DBG("release it\n"); 567 pipe_texture_release(&stObj->pt); 568 assert(!stObj->pt); 569 stObj->teximage_realloc = FALSE; 570 } 571 572 if (!stObj->pt) { 573 guess_and_alloc_texture(ctx->st, stObj, stImage); 574 if (!stObj->pt) { 575 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 576 return; 577 } 578 } 579 580 assert(!stImage->pt); 581 582 if (stObj->pt && 583 st_texture_match_image(stObj->pt, &stImage->base, 584 stImage->face, stImage->level)) { 585 586 pipe_texture_reference(&stImage->pt, stObj->pt); 587 assert(stImage->pt); 588 } 589 590 if (!stImage->pt) 591 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 592 593#if 0 /* XXX FIX when st_buffer_objects are in place */ 594 /* PBO fastpaths: 595 */ 596 if (dims <= 2 && 597 stImage->pt && 598 intel_buffer_object(unpack->BufferObj) && 599 check_pbo_format(internalFormat, format, 600 type, texImage->TexFormat)) { 601 602 DBG("trying pbo upload\n"); 603 604 605 606 /* Otherwise, attempt to use the blitter for PBO image uploads. 607 */ 608 if (try_pbo_upload(intel, stImage, unpack, 609 internalFormat, 610 width, height, format, type, pixels)) { 611 DBG("pbo upload succeeded\n"); 612 return; 613 } 614 615 DBG("pbo upload failed\n"); 616 } 617#else 618 (void) try_pbo_upload; 619 (void) check_pbo_format; 620#endif 621 622 623 /* st_CopyTexImage calls this function with pixels == NULL, with 624 * the expectation that the texture will be set up but nothing 625 * more will be done. This is where those calls return: 626 */ 627 if (compressed) { 628 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 629 unpack, 630 "glCompressedTexImage"); 631 } else { 632 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 633 format, type, 634 pixels, unpack, "glTexImage"); 635 } 636 if (!pixels) 637 return; 638 639 if (stImage->pt) { 640 texImage->Data = st_texture_image_map(ctx->st, stImage, 0); 641 dstRowStride = stImage->surface->pitch * stImage->surface->cpp; 642 } 643 else { 644 /* Allocate regular memory and store the image there temporarily. */ 645 if (texImage->IsCompressed) { 646 sizeInBytes = texImage->CompressedSize; 647 dstRowStride = 648 _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width); 649 assert(dims != 3); 650 } 651 else { 652 dstRowStride = postConvWidth * texelBytes; 653 sizeInBytes = depth * dstRowStride * postConvHeight; 654 } 655 656 texImage->Data = malloc(sizeInBytes); 657 } 658 659 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 660 width, height, depth, width * texelBytes, dstRowStride); 661 662 /* Copy data. Would like to know when it's ok for us to eg. use 663 * the blitter to copy. Or, use the hardware to do the format 664 * conversion and copy: 665 */ 666 if (compressed) { 667 memcpy(texImage->Data, pixels, imageSize); 668 } 669 else { 670 GLuint srcImageStride = _mesa_image_image_stride(unpack, width, height, 671 format, type); 672 int i; 673 const GLubyte *src = (const GLubyte *) pixels; 674 675 for (i = 0; i++ < depth;) { 676 if (!texImage->TexFormat->StoreImage(ctx, dims, 677 texImage->_BaseFormat, 678 texImage->TexFormat, 679 texImage->Data, 680 0, 0, 0, /* dstX/Y/Zoffset */ 681 dstRowStride, 682 texImage->ImageOffsets, 683 width, height, 1, 684 format, type, src, unpack)) { 685 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 686 } 687 688 if (stImage->pt && i < depth) { 689 st_texture_image_unmap(stImage); 690 texImage->Data = st_texture_image_map(ctx->st, stImage, i); 691 src += srcImageStride; 692 } 693 } 694 } 695 696 _mesa_unmap_teximage_pbo(ctx, unpack); 697 698 if (stImage->pt) { 699 st_texture_image_unmap(stImage); 700 texImage->Data = NULL; 701 } 702 703 if (stObj->pt) 704 pipe->texture_update(pipe, stObj->pt, stImage->face, (1 << level)); 705 706 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 707 ctx->Driver.GenerateMipmap(ctx, target, texObj); 708 } 709} 710 711 712static void 713st_TexImage3D(GLcontext * ctx, 714 GLenum target, GLint level, 715 GLint internalFormat, 716 GLint width, GLint height, GLint depth, 717 GLint border, 718 GLenum format, GLenum type, const void *pixels, 719 const struct gl_pixelstore_attrib *unpack, 720 struct gl_texture_object *texObj, 721 struct gl_texture_image *texImage) 722{ 723 st_TexImage(ctx, 3, target, level, 724 internalFormat, width, height, depth, border, 725 format, type, pixels, unpack, texObj, texImage, 0, 0); 726} 727 728 729static void 730st_TexImage2D(GLcontext * ctx, 731 GLenum target, GLint level, 732 GLint internalFormat, 733 GLint width, GLint height, GLint border, 734 GLenum format, GLenum type, const void *pixels, 735 const struct gl_pixelstore_attrib *unpack, 736 struct gl_texture_object *texObj, 737 struct gl_texture_image *texImage) 738{ 739 st_TexImage(ctx, 2, target, level, 740 internalFormat, width, height, 1, border, 741 format, type, pixels, unpack, texObj, texImage, 0, 0); 742} 743 744 745static void 746st_TexImage1D(GLcontext * ctx, 747 GLenum target, GLint level, 748 GLint internalFormat, 749 GLint width, GLint border, 750 GLenum format, GLenum type, const void *pixels, 751 const struct gl_pixelstore_attrib *unpack, 752 struct gl_texture_object *texObj, 753 struct gl_texture_image *texImage) 754{ 755 st_TexImage(ctx, 1, target, level, 756 internalFormat, width, 1, 1, border, 757 format, type, pixels, unpack, texObj, texImage, 0, 0); 758} 759 760 761static void 762st_CompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level, 763 GLint internalFormat, 764 GLint width, GLint height, GLint border, 765 GLsizei imageSize, const GLvoid *data, 766 struct gl_texture_object *texObj, 767 struct gl_texture_image *texImage ) 768{ 769 st_TexImage(ctx, 2, target, level, 770 internalFormat, width, height, 1, border, 771 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, 1); 772} 773 774 775/** 776 * Need to map texture image into memory before copying image data, 777 * then unmap it. 778 */ 779static void 780st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 781 GLenum format, GLenum type, GLvoid * pixels, 782 struct gl_texture_object *texObj, 783 struct gl_texture_image *texImage, int compressed) 784{ 785 struct st_texture_image *stImage = st_texture_image(texImage); 786 GLuint dstImageStride = _mesa_image_image_stride(&ctx->Pack, texImage->Width, 787 texImage->Height, format, 788 type); 789 GLuint depth; 790 int i; 791 GLubyte *dest; 792 793 /* Map */ 794 if (stImage->pt) { 795 /* Image is stored in hardware format in a buffer managed by the 796 * kernel. Need to explicitly map and unmap it. 797 */ 798 texImage->Data = st_texture_image_map(ctx->st, stImage, 0); 799 texImage->RowStride = stImage->surface->pitch; 800 } 801 else { 802 /* Otherwise, the image should actually be stored in 803 * texImage->Data. This is pretty confusing for 804 * everybody, I'd much prefer to separate the two functions of 805 * texImage->Data - storage for texture images in main memory 806 * and access (ie mappings) of images. In other words, we'd 807 * create a new texImage->Map field and leave Data simply for 808 * storage. 809 */ 810 assert(texImage->Data); 811 } 812 813 depth = texImage->Depth; 814 texImage->Depth = 1; 815 816 dest = (GLubyte *) pixels; 817 818 for (i = 0; i++ < depth;) { 819 if (compressed) { 820 _mesa_get_compressed_teximage(ctx, target, level, dest, 821 texObj, texImage); 822 } else { 823 _mesa_get_teximage(ctx, target, level, format, type, dest, 824 texObj, texImage); 825 } 826 827 if (stImage->pt && i < depth) { 828 st_texture_image_unmap(stImage); 829 texImage->Data = st_texture_image_map(ctx->st, stImage, i); 830 dest += dstImageStride; 831 } 832 } 833 834 texImage->Depth = depth; 835 836 /* Unmap */ 837 if (stImage->pt) { 838 st_texture_image_unmap(stImage); 839 texImage->Data = NULL; 840 } 841} 842 843 844static void 845st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 846 GLenum format, GLenum type, GLvoid * pixels, 847 struct gl_texture_object *texObj, 848 struct gl_texture_image *texImage) 849{ 850 st_get_tex_image(ctx, target, level, format, type, pixels, 851 texObj, texImage, 0); 852} 853 854 855static void 856st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 857 GLvoid *pixels, 858 const struct gl_texture_object *texObj, 859 const struct gl_texture_image *texImage) 860{ 861 st_get_tex_image(ctx, target, level, 0, 0, pixels, 862 (struct gl_texture_object *) texObj, 863 (struct gl_texture_image *) texImage, 1); 864} 865 866 867 868static void 869st_TexSubimage(GLcontext * ctx, 870 GLint dims, 871 GLenum target, GLint level, 872 GLint xoffset, GLint yoffset, GLint zoffset, 873 GLint width, GLint height, GLint depth, 874 GLenum format, GLenum type, const void *pixels, 875 const struct gl_pixelstore_attrib *packing, 876 struct gl_texture_object *texObj, 877 struct gl_texture_image *texImage) 878{ 879 struct pipe_context *pipe = ctx->st->pipe; 880 struct st_texture_object *stObj = st_texture_object(texObj); 881 struct st_texture_image *stImage = st_texture_image(texImage); 882 GLuint dstRowStride; 883 GLuint srcImageStride = _mesa_image_image_stride(packing, width, height, 884 format, type); 885 int i; 886 const GLubyte *src; 887 888 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 889 _mesa_lookup_enum_by_nr(target), 890 level, xoffset, yoffset, width, height); 891 892 pixels = 893 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 894 type, pixels, packing, "glTexSubImage2D"); 895 if (!pixels) 896 return; 897 898 /* Map buffer if necessary. Need to lock to prevent other contexts 899 * from uploading the buffer under us. 900 */ 901 if (stImage->pt) { 902 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset); 903 dstRowStride = stImage->surface->pitch * stImage->surface->cpp; 904 } 905 906 if (!texImage->Data) { 907 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 908 return; 909 } 910 911 src = (const GLubyte *) pixels; 912 913 for (i = 0; i++ < depth;) { 914 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 915 texImage->TexFormat, 916 texImage->Data, 917 xoffset, yoffset, 0, 918 dstRowStride, 919 texImage->ImageOffsets, 920 width, height, 1, 921 format, type, src, packing)) { 922 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 923 } 924 925 if (stImage->pt && i < depth) { 926 /* map next slice of 3D texture */ 927 st_texture_image_unmap(stImage); 928 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset + i); 929 src += srcImageStride; 930 } 931 } 932 933 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 934 ctx->Driver.GenerateMipmap(ctx, target, texObj); 935 } 936 937 _mesa_unmap_teximage_pbo(ctx, packing); 938 939 if (stImage->pt) { 940 st_texture_image_unmap(stImage); 941 texImage->Data = NULL; 942 } 943 944 pipe->texture_update(pipe, stObj->pt, stImage->face, (1 << level)); 945} 946 947 948 949static void 950st_TexSubImage3D(GLcontext * ctx, 951 GLenum target, 952 GLint level, 953 GLint xoffset, GLint yoffset, GLint zoffset, 954 GLsizei width, GLsizei height, GLsizei depth, 955 GLenum format, GLenum type, 956 const GLvoid * pixels, 957 const struct gl_pixelstore_attrib *packing, 958 struct gl_texture_object *texObj, 959 struct gl_texture_image *texImage) 960{ 961 st_TexSubimage(ctx, 3, target, level, 962 xoffset, yoffset, zoffset, 963 width, height, depth, 964 format, type, pixels, packing, texObj, texImage); 965} 966 967 968 969static void 970st_TexSubImage2D(GLcontext * ctx, 971 GLenum target, 972 GLint level, 973 GLint xoffset, GLint yoffset, 974 GLsizei width, GLsizei height, 975 GLenum format, GLenum type, 976 const GLvoid * pixels, 977 const struct gl_pixelstore_attrib *packing, 978 struct gl_texture_object *texObj, 979 struct gl_texture_image *texImage) 980{ 981 st_TexSubimage(ctx, 2, target, level, 982 xoffset, yoffset, 0, 983 width, height, 1, 984 format, type, pixels, packing, texObj, texImage); 985} 986 987 988static void 989st_TexSubImage1D(GLcontext * ctx, 990 GLenum target, 991 GLint level, 992 GLint xoffset, 993 GLsizei width, 994 GLenum format, GLenum type, 995 const GLvoid * pixels, 996 const struct gl_pixelstore_attrib *packing, 997 struct gl_texture_object *texObj, 998 struct gl_texture_image *texImage) 999{ 1000 st_TexSubimage(ctx, 1, target, level, 1001 xoffset, 0, 0, 1002 width, 1, 1, 1003 format, type, pixels, packing, texObj, texImage); 1004} 1005 1006 1007 1008/** 1009 * Return 0 for GL_TEXTURE_CUBE_MAP_POSITIVE_X, 1010 * 1 for GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 1011 * etc. 1012 * XXX duplicated from main/teximage.c 1013 */ 1014static uint 1015texture_face(GLenum target) 1016{ 1017 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 1018 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) 1019 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; 1020 else 1021 return 0; 1022} 1023 1024 1025 1026/** 1027 * Do a CopyTexSubImage operation by mapping the source surface and 1028 * dest surface and using get_tile()/put_tile() to access the pixels/texels. 1029 * 1030 * Note: srcY=0=TOP of renderbuffer 1031 */ 1032static void 1033fallback_copy_texsubimage(GLcontext *ctx, 1034 GLenum target, 1035 GLint level, 1036 struct st_renderbuffer *strb, 1037 struct st_texture_image *stImage, 1038 GLenum baseFormat, 1039 GLint destX, GLint destY, GLint destZ, 1040 GLint srcX, GLint srcY, 1041 GLsizei width, GLsizei height) 1042{ 1043 struct pipe_context *pipe = ctx->st->pipe; 1044 struct pipe_screen *screen = pipe->screen; 1045 const uint face = texture_face(target); 1046 struct pipe_texture *pt = stImage->pt; 1047 struct pipe_surface *src_surf, *dest_surf; 1048 GLint row, yStep; 1049 1050 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1051 1052 /* determine bottom-to-top vs. top-to-bottom order */ 1053 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1054 destY = height - 1 - destY; 1055 yStep = -1; 1056 } 1057 else { 1058 yStep = 1; 1059 } 1060 1061 src_surf = strb->surface; 1062 1063 dest_surf = screen->get_tex_surface(screen, pt, face, level, destZ); 1064 1065 assert(width <= MAX_WIDTH); 1066 1067 /* 1068 * To avoid a large temp memory allocation, do copy row by row. 1069 */ 1070 if (baseFormat == GL_DEPTH_COMPONENT) { 1071 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1072 ctx->Pixel.DepthBias != 0.0F); 1073 1074 for (row = 0; row < height; row++, srcY++, destY += yStep) { 1075 uint data[MAX_WIDTH]; 1076 pipe_get_tile_z(pipe, src_surf, srcX, srcY, width, 1, data); 1077 if (scaleOrBias) { 1078 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1079 } 1080 pipe_put_tile_z(pipe, dest_surf, destX, destY, width, 1, data); 1081 } 1082 } 1083 else { 1084 /* RGBA format */ 1085 for (row = 0; row < height; row++, srcY++, destY += yStep) { 1086 float data[4 * MAX_WIDTH]; 1087 pipe_get_tile_rgba(pipe, src_surf, srcX, srcY, width, 1, data); 1088 /* XXX we're ignoring convolution for now */ 1089 if (ctx->_ImageTransferState) { 1090 _mesa_apply_rgba_transfer_ops(ctx, 1091 ctx->_ImageTransferState & ~IMAGE_CONVOLUTION_BIT, 1092 width, (GLfloat (*)[4]) data); 1093 } 1094 pipe_put_tile_rgba(pipe, dest_surf, destX, destY, width, 1, data); 1095 } 1096 } 1097} 1098 1099 1100 1101 1102/** 1103 * Do a CopyTex[Sub]Image using an optimized hardware (blit) path. 1104 * Note that the region to copy has already been clip tested. 1105 * 1106 * Note: srcY=0=Bottom of renderbuffer 1107 * 1108 * \return GL_TRUE if success, GL_FALSE if failure (use a fallback) 1109 */ 1110static void 1111do_copy_texsubimage(GLcontext *ctx, 1112 GLenum target, GLint level, 1113 GLint destX, GLint destY, GLint destZ, 1114 GLint srcX, GLint srcY, 1115 GLsizei width, GLsizei height) 1116{ 1117 struct gl_texture_unit *texUnit = 1118 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1119 struct gl_texture_object *texObj = 1120 _mesa_select_tex_object(ctx, texUnit, target); 1121 struct gl_texture_image *texImage = 1122 _mesa_select_tex_image(ctx, texObj, target, level); 1123 struct st_texture_image *stImage = st_texture_image(texImage); 1124 struct st_texture_object *stObj = st_texture_object(texObj); 1125 GLenum baseFormat = texImage->InternalFormat; 1126 struct gl_framebuffer *fb = ctx->ReadBuffer; 1127 struct st_renderbuffer *strb; 1128 struct pipe_context *pipe = ctx->st->pipe; 1129 struct pipe_screen *screen = pipe->screen; 1130 struct pipe_surface *dest_surface; 1131 uint dest_format, src_format; 1132 uint do_flip = FALSE; 1133 GLboolean use_fallback = GL_TRUE; 1134 1135 (void) texImage; 1136 1137 /* determine if copying depth or color data */ 1138 if (baseFormat == GL_DEPTH_COMPONENT) { 1139 strb = st_renderbuffer(fb->_DepthBuffer); 1140 } 1141 else if (baseFormat == GL_DEPTH_STENCIL_EXT) { 1142 strb = st_renderbuffer(fb->_StencilBuffer); 1143 } 1144 else { 1145 /* baseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1146 strb = st_renderbuffer(fb->_ColorReadBuffer); 1147 } 1148 1149 assert(strb); 1150 assert(strb->surface); 1151 assert(stImage->pt); 1152 1153 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1154 srcY = strb->Base.Height - srcY - height; 1155 do_flip = TRUE; 1156 } 1157 1158 src_format = strb->surface->format; 1159 dest_format = stImage->pt->format; 1160 1161 dest_surface = screen->get_tex_surface(screen, stImage->pt, stImage->face, 1162 stImage->level, destZ); 1163 1164 if (ctx->_ImageTransferState == 0x0 && 1165 strb->surface->buffer && 1166 dest_surface->buffer) { 1167 /* do blit-style copy */ 1168 1169 /* XXX may need to invert image depending on window 1170 * vs. user-created FBO 1171 */ 1172 1173#if 0 1174 /* A bit of fiddling to get the blitter to work with -ve 1175 * pitches. But we get a nice inverted blit this way, so it's 1176 * worth it: 1177 */ 1178 intelEmitCopyBlit(intel, 1179 stImage->pt->cpp, 1180 -src->pitch, 1181 src->buffer, 1182 src->height * src->pitch * src->cpp, 1183 stImage->pt->pitch, 1184 stImage->pt->region->buffer, 1185 dest_offset, 1186 x, y + height, dstx, dsty, width, height, 1187 GL_COPY); /* ? */ 1188#else 1189 1190 if (src_format == dest_format) { 1191 pipe->surface_copy(pipe, 1192 do_flip, 1193 /* dest */ 1194 dest_surface, 1195 destX, destY, 1196 /* src */ 1197 strb->surface, 1198 srcX, srcY, 1199 /* size */ 1200 width, height); 1201 use_fallback = GL_FALSE; 1202 } 1203 else if (screen->is_format_supported(screen, strb->surface->format, 1204 PIPE_TEXTURE) && 1205 screen->is_format_supported(screen, dest_surface->format, 1206 PIPE_SURFACE)) { 1207 util_blit_pixels(ctx->st->blit, 1208 strb->surface, 1209 srcX, do_flip ? srcY + height : srcY, 1210 srcX + width, do_flip ? srcY : srcY + height, 1211 dest_surface, 1212 destX, destY, destX + width, destY + height, 1213 0.0, PIPE_TEX_MIPFILTER_NEAREST); 1214 use_fallback = GL_FALSE; 1215 } 1216#endif 1217 } 1218 1219 if (use_fallback) { 1220 fallback_copy_texsubimage(ctx, target, level, 1221 strb, stImage, baseFormat, 1222 destX, destY, destZ, 1223 srcX, srcY, width, height); 1224 } 1225 1226 pipe_surface_reference(&dest_surface, NULL); 1227 1228 pipe->texture_update(pipe, stObj->pt, stImage->face, (1 << level)); 1229 1230 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1231 ctx->Driver.GenerateMipmap(ctx, target, texObj); 1232 } 1233} 1234 1235 1236 1237static void 1238st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1239 GLenum internalFormat, 1240 GLint x, GLint y, GLsizei width, GLint border) 1241{ 1242 struct gl_texture_unit *texUnit = 1243 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1244 struct gl_texture_object *texObj = 1245 _mesa_select_tex_object(ctx, texUnit, target); 1246 struct gl_texture_image *texImage = 1247 _mesa_select_tex_image(ctx, texObj, target, level); 1248 1249#if 0 1250 if (border) 1251 goto fail; 1252#endif 1253 1254 /* Setup or redefine the texture object, texture and texture 1255 * image. Don't populate yet. 1256 */ 1257 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1258 width, border, 1259 GL_RGBA, CHAN_TYPE, NULL, 1260 &ctx->DefaultPacking, texObj, texImage); 1261 1262 do_copy_texsubimage(ctx, target, level, 1263 0, 0, 0, 1264 x, y, width, 1); 1265} 1266 1267 1268static void 1269st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1270 GLenum internalFormat, 1271 GLint x, GLint y, GLsizei width, GLsizei height, 1272 GLint border) 1273{ 1274 struct gl_texture_unit *texUnit = 1275 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1276 struct gl_texture_object *texObj = 1277 _mesa_select_tex_object(ctx, texUnit, target); 1278 struct gl_texture_image *texImage = 1279 _mesa_select_tex_image(ctx, texObj, target, level); 1280 1281#if 0 1282 if (border) 1283 goto fail; 1284#endif 1285 1286 /* Setup or redefine the texture object, texture and texture 1287 * image. Don't populate yet. 1288 */ 1289 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1290 width, height, border, 1291 GL_RGBA, CHAN_TYPE, NULL, 1292 &ctx->DefaultPacking, texObj, texImage); 1293 1294 1295 do_copy_texsubimage(ctx, target, level, 1296 0, 0, 0, 1297 x, y, width, height); 1298} 1299 1300 1301static void 1302st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1303 GLint xoffset, GLint x, GLint y, GLsizei width) 1304{ 1305 const GLint yoffset = 0, zoffset = 0; 1306 const GLsizei height = 1; 1307 do_copy_texsubimage(ctx, target, level, 1308 xoffset, yoffset, zoffset, 1309 x, y, width, height); 1310} 1311 1312 1313static void 1314st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1315 GLint xoffset, GLint yoffset, 1316 GLint x, GLint y, GLsizei width, GLsizei height) 1317{ 1318 const GLint zoffset = 0; 1319 do_copy_texsubimage(ctx, target, level, 1320 xoffset, yoffset, zoffset, 1321 x, y, width, height); 1322} 1323 1324 1325static void 1326st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1327 GLint xoffset, GLint yoffset, GLint zoffset, 1328 GLint x, GLint y, GLsizei width, GLsizei height) 1329{ 1330 do_copy_texsubimage(ctx, target, level, 1331 xoffset, yoffset, zoffset, 1332 x, y, width, height); 1333} 1334 1335 1336 1337 1338/** 1339 * Compute which mipmap levels that really need to be sent to the hardware. 1340 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1341 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1342 */ 1343static void 1344calculate_first_last_level(struct st_texture_object *stObj) 1345{ 1346 struct gl_texture_object *tObj = &stObj->base; 1347 1348 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1349 * and having firstLevel and lastLevel as signed prevents the need for 1350 * extra sign checks. 1351 */ 1352 int firstLevel; 1353 int lastLevel; 1354 1355 /* Yes, this looks overly complicated, but it's all needed. 1356 */ 1357 switch (tObj->Target) { 1358 case GL_TEXTURE_1D: 1359 case GL_TEXTURE_2D: 1360 case GL_TEXTURE_3D: 1361 case GL_TEXTURE_CUBE_MAP: 1362 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1363 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1364 */ 1365 firstLevel = lastLevel = tObj->BaseLevel; 1366 } 1367 else { 1368 firstLevel = 0; 1369 lastLevel = MIN2(tObj->MaxLevel, tObj->Image[0][0]->WidthLog2); 1370 } 1371 break; 1372 case GL_TEXTURE_RECTANGLE_NV: 1373 case GL_TEXTURE_4D_SGIS: 1374 firstLevel = lastLevel = 0; 1375 break; 1376 default: 1377 return; 1378 } 1379 1380 stObj->lastLevel = lastLevel; 1381} 1382 1383 1384static void 1385copy_image_data_to_texture(struct st_context *st, 1386 struct st_texture_object *stObj, 1387 GLuint dstLevel, 1388 struct st_texture_image *stImage) 1389{ 1390 if (stImage->pt) { 1391 /* Copy potentially with the blitter: 1392 */ 1393 st_texture_image_copy(st->pipe, 1394 stObj->pt, dstLevel, /* dest texture, level */ 1395 stImage->pt, /* src texture */ 1396 stImage->face 1397 ); 1398 1399 pipe_texture_release(&stImage->pt); 1400 } 1401 else if (stImage->base.Data) { 1402 assert(stImage->base.Data != NULL); 1403 1404 /* More straightforward upload. 1405 */ 1406 st_texture_image_data(st->pipe, 1407 stObj->pt, 1408 stImage->face, 1409 dstLevel, 1410 stImage->base.Data, 1411 stImage->base.RowStride, 1412 stImage->base.RowStride * 1413 stImage->base.Height); 1414 _mesa_align_free(stImage->base.Data); 1415 stImage->base.Data = NULL; 1416 } 1417 1418 pipe_texture_reference(&stImage->pt, stObj->pt); 1419} 1420 1421 1422/** 1423 * Called during state validation. When this function is finished, 1424 * the texture object should be ready for rendering. 1425 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1426 */ 1427GLboolean 1428st_finalize_texture(GLcontext *ctx, 1429 struct pipe_context *pipe, 1430 struct gl_texture_object *tObj, 1431 GLboolean *needFlush) 1432{ 1433 struct st_texture_object *stObj = st_texture_object(tObj); 1434 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1435 int comp_byte = 0; 1436 int cpp; 1437 GLuint face; 1438 struct st_texture_image *firstImage; 1439 1440 *needFlush = GL_FALSE; 1441 1442 /* We know/require this is true by now: 1443 */ 1444 assert(stObj->base._Complete); 1445 1446 /* What levels must the texture include at a minimum? 1447 */ 1448 calculate_first_last_level(stObj); 1449 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1450 1451#if 0 1452 /* Fallback case: 1453 */ 1454 if (firstImage->base.Border) { 1455 if (stObj->pt) { 1456 pipe_texture_release(&stObj->pt); 1457 } 1458 return GL_FALSE; 1459 } 1460#endif 1461 1462 /* If both firstImage and stObj point to a texture which can contain 1463 * all active images, favour firstImage. Note that because of the 1464 * completeness requirement, we know that the image dimensions 1465 * will match. 1466 */ 1467 if (firstImage->pt && 1468 firstImage->pt != stObj->pt && 1469 firstImage->pt->last_level >= stObj->lastLevel) { 1470 1471 if (stObj->pt) 1472 pipe_texture_release(&stObj->pt); 1473 1474 pipe_texture_reference(&stObj->pt, firstImage->pt); 1475 } 1476 1477 if (firstImage->base.IsCompressed) { 1478 comp_byte = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1479 cpp = comp_byte; 1480 } 1481 else { 1482 cpp = firstImage->base.TexFormat->TexelBytes; 1483 } 1484 1485 /* Check texture can hold all active levels. Check texture matches 1486 * target, imageFormat, etc. 1487 */ 1488 if (stObj->pt && 1489 (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1490 stObj->pt->format != 1491 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat) || 1492 stObj->pt->last_level < stObj->lastLevel || 1493 stObj->pt->cpp != cpp || 1494 stObj->pt->compressed != firstImage->base.IsCompressed)) { 1495 pipe_texture_release(&stObj->pt); 1496 } 1497 1498 1499 /* May need to create a new texture: 1500 */ 1501 if (!stObj->pt) { 1502 stObj->pt = st_texture_create(ctx->st, 1503 gl_target_to_pipe(stObj->base.Target), 1504 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat), 1505 stObj->lastLevel, 1506 firstImage->base.Width2, 1507 firstImage->base.Height2, 1508 firstImage->base.Depth2, 1509 comp_byte); 1510 if (!stObj->pt) { 1511 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1512 return GL_FALSE; 1513 } 1514 } 1515 1516 /* Pull in any images not in the object's texture: 1517 */ 1518 for (face = 0; face < nr_faces; face++) { 1519 GLuint level; 1520 for (level = 0; level <= stObj->lastLevel; level++) { 1521 struct st_texture_image *stImage = 1522 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1523 1524 /* Need to import images in main memory or held in other textures. 1525 */ 1526 if (stImage && stObj->pt != stImage->pt) { 1527 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1528 *needFlush = GL_TRUE; 1529 pipe->texture_update(pipe, stObj->pt, face, (1 << level)); 1530 } 1531 } 1532 } 1533 1534 return GL_TRUE; 1535} 1536 1537 1538 1539 1540void 1541st_init_texture_functions(struct dd_function_table *functions) 1542{ 1543 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1544 functions->TexImage1D = st_TexImage1D; 1545 functions->TexImage2D = st_TexImage2D; 1546 functions->TexImage3D = st_TexImage3D; 1547 functions->TexSubImage1D = st_TexSubImage1D; 1548 functions->TexSubImage2D = st_TexSubImage2D; 1549 functions->TexSubImage3D = st_TexSubImage3D; 1550 functions->CopyTexImage1D = st_CopyTexImage1D; 1551 functions->CopyTexImage2D = st_CopyTexImage2D; 1552 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1553 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1554 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1555 functions->GenerateMipmap = st_generate_mipmap; 1556 1557 functions->GetTexImage = st_GetTexImage; 1558 1559 /* compressed texture functions */ 1560 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1561 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1562 functions->CompressedTextureSize = _mesa_compressed_texture_size; 1563 1564 functions->NewTextureObject = st_NewTextureObject; 1565 functions->NewTextureImage = st_NewTextureImage; 1566 functions->DeleteTexture = st_DeleteTextureObject; 1567 functions->FreeTexImageData = st_FreeTextureImageData; 1568 functions->UpdateTexturePalette = 0; 1569 functions->IsTextureResident = st_IsTextureResident; 1570 1571 functions->TextureMemCpy = do_memcpy; 1572 1573 /* XXX Temporary until we can query pipe's texture sizes */ 1574 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1575} 1576