st_cb_texture.c revision 809dd9089bae70cf35cea6a75258e700e7455738
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 ( PIPE_TEXTURE_USAGE_RENDER_TARGET | 338 PIPE_TEXTURE_USAGE_SAMPLER )); 339 340 DBG("%s - success\n", __FUNCTION__); 341} 342 343 344/* There are actually quite a few combinations this will work for, 345 * more than what I've listed here. 346 */ 347static GLboolean 348check_pbo_format(GLint internalFormat, 349 GLenum format, GLenum type, 350 const struct gl_texture_format *mesa_format) 351{ 352 switch (internalFormat) { 353 case 4: 354 case GL_RGBA: 355 return (format == GL_BGRA && 356 (type == GL_UNSIGNED_BYTE || 357 type == GL_UNSIGNED_INT_8_8_8_8_REV) && 358 mesa_format == &_mesa_texformat_argb8888); 359 case 3: 360 case GL_RGB: 361 return (format == GL_RGB && 362 type == GL_UNSIGNED_SHORT_5_6_5 && 363 mesa_format == &_mesa_texformat_rgb565); 364 case GL_YCBCR_MESA: 365 return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE); 366 default: 367 return GL_FALSE; 368 } 369} 370 371 372/* XXX: Do this for TexSubImage also: 373 */ 374static GLboolean 375try_pbo_upload(GLcontext *ctx, 376 struct st_texture_image *stImage, 377 const struct gl_pixelstore_attrib *unpack, 378 GLint internalFormat, 379 GLint width, GLint height, 380 GLenum format, GLenum type, const void *pixels) 381{ 382 return GL_FALSE; /* XXX fix flushing/locking/blitting below */ 383#if 000 384 struct intel_context *intel = intel_context(ctx); 385 struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj); 386 GLuint src_offset, src_stride; 387 GLuint dst_offset, dst_stride; 388 389 if (!pbo || 390 ctx._ImageTransferState || 391 unpack->SkipPixels || unpack->SkipRows) { 392 _mesa_printf("%s: failure 1\n", __FUNCTION__); 393 return GL_FALSE; 394 } 395 396 src_offset = (GLuint) pixels; 397 398 if (unpack->RowLength > 0) 399 src_stride = unpack->RowLength; 400 else 401 src_stride = width; 402 403 dst_offset = st_texture_image_offset(stImage->pt, 404 stImage->face, 405 stImage->level); 406 407 dst_stride = stImage->pt->pitch; 408 409 { 410 struct _DriBufferObject *src_buffer = 411 intel_bufferobj_buffer(intel, pbo, INTEL_READ); 412 413 /* Temporary hack: cast to _DriBufferObject: 414 */ 415 struct _DriBufferObject *dst_buffer = 416 (struct _DriBufferObject *)stImage->pt->region->buffer; 417 418 419 intelEmitCopyBlit(intel, 420 stImage->pt->cpp, 421 src_stride, src_buffer, src_offset, 422 dst_stride, dst_buffer, dst_offset, 423 0, 0, 0, 0, width, height, 424 GL_COPY); 425 } 426 427 return GL_TRUE; 428#endif 429} 430 431 432/** 433 * Adjust pixel unpack params and image dimensions to strip off the 434 * texture border. 435 * Gallium doesn't support texture borders. They've seldem been used 436 * and seldom been implemented correctly anyway. 437 * \param unpackNew returns the new pixel unpack parameters 438 */ 439static void 440strip_texture_border(GLint border, 441 GLint *width, GLint *height, GLint *depth, 442 const struct gl_pixelstore_attrib *unpack, 443 struct gl_pixelstore_attrib *unpackNew) 444{ 445 assert(border > 0); /* sanity check */ 446 447 *unpackNew = *unpack; 448 449 if (unpackNew->RowLength == 0) 450 unpackNew->RowLength = *width; 451 452 if (depth && unpackNew->ImageHeight == 0) 453 unpackNew->ImageHeight = *height; 454 455 unpackNew->SkipPixels += border; 456 if (height) 457 unpackNew->SkipRows += border; 458 if (depth) 459 unpackNew->SkipImages += border; 460 461 assert(*width >= 3); 462 *width = *width - 2 * border; 463 if (height && *height >= 3) 464 *height = *height - 2 * border; 465 if (depth && *depth >= 3) 466 *depth = *depth - 2 * border; 467} 468 469 470static void 471st_TexImage(GLcontext * ctx, 472 GLint dims, 473 GLenum target, GLint level, 474 GLint internalFormat, 475 GLint width, GLint height, GLint depth, 476 GLint border, 477 GLenum format, GLenum type, const void *pixels, 478 const struct gl_pixelstore_attrib *unpack, 479 struct gl_texture_object *texObj, 480 struct gl_texture_image *texImage, 481 GLsizei imageSize, int compressed) 482{ 483 struct st_texture_object *stObj = st_texture_object(texObj); 484 struct st_texture_image *stImage = st_texture_image(texImage); 485 GLint postConvWidth, postConvHeight; 486 GLint texelBytes, sizeInBytes; 487 GLuint dstRowStride; 488 struct gl_pixelstore_attrib unpackNB; 489 490 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 491 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 492 493 /* gallium does not support texture borders, strip it off */ 494 if (border) { 495 strip_texture_border(border, &width, &height, &depth, 496 unpack, &unpackNB); 497 unpack = &unpackNB; 498 texImage->Width = width; 499 texImage->Height = height; 500 texImage->Depth = depth; 501 texImage->Border = 0; 502 border = 0; 503 } 504 505 postConvWidth = width; 506 postConvHeight = height; 507 508 stImage->face = _mesa_tex_target_to_face(target); 509 stImage->level = level; 510 511 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 512 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 513 &postConvHeight); 514 } 515 516 /* choose the texture format */ 517 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 518 format, type); 519 520 _mesa_set_fetch_functions(texImage, dims); 521 522 if (texImage->TexFormat->TexelBytes == 0) { 523 /* must be a compressed format */ 524 texelBytes = 0; 525 texImage->IsCompressed = GL_TRUE; 526 texImage->CompressedSize = 527 ctx->Driver.CompressedTextureSize(ctx, texImage->Width, 528 texImage->Height, texImage->Depth, 529 texImage->TexFormat->MesaFormat); 530 } 531 else { 532 texelBytes = texImage->TexFormat->TexelBytes; 533 534 /* Minimum pitch of 32 bytes */ 535 if (postConvWidth * texelBytes < 32) { 536 postConvWidth = 32 / texelBytes; 537 texImage->RowStride = postConvWidth; 538 } 539 540 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 541 /*assert(texImage->RowStride == postConvWidth);*/ 542 } 543 544 /* Release the reference to a potentially orphaned buffer. 545 * Release any old malloced memory. 546 */ 547 if (stImage->pt) { 548 pipe_texture_release(&stImage->pt); 549 assert(!texImage->Data); 550 } 551 else if (texImage->Data) { 552 _mesa_align_free(texImage->Data); 553 } 554 555 /* If this is the only mipmap level in the texture, could call 556 * bmBufferData with NULL data to free the old block and avoid 557 * waiting on any outstanding fences. 558 */ 559 if (stObj->pt && 560 (stObj->teximage_realloc || 561 (/*stObj->pt->first_level == level &&*/ 562 stObj->pt->last_level == level && 563 stObj->pt->target != PIPE_TEXTURE_CUBE && 564 !st_texture_match_image(stObj->pt, &stImage->base, 565 stImage->face, stImage->level)))) { 566 567 DBG("release it\n"); 568 pipe_texture_release(&stObj->pt); 569 assert(!stObj->pt); 570 stObj->teximage_realloc = FALSE; 571 } 572 573 if (!stObj->pt) { 574 guess_and_alloc_texture(ctx->st, stObj, stImage); 575 if (!stObj->pt) { 576 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 577 return; 578 } 579 } 580 581 assert(!stImage->pt); 582 583 if (stObj->pt && 584 st_texture_match_image(stObj->pt, &stImage->base, 585 stImage->face, stImage->level)) { 586 587 pipe_texture_reference(&stImage->pt, stObj->pt); 588 assert(stImage->pt); 589 } 590 591 if (!stImage->pt) 592 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 593 594#if 0 /* XXX FIX when st_buffer_objects are in place */ 595 /* PBO fastpaths: 596 */ 597 if (dims <= 2 && 598 stImage->pt && 599 intel_buffer_object(unpack->BufferObj) && 600 check_pbo_format(internalFormat, format, 601 type, texImage->TexFormat)) { 602 603 DBG("trying pbo upload\n"); 604 605 606 607 /* Otherwise, attempt to use the blitter for PBO image uploads. 608 */ 609 if (try_pbo_upload(intel, stImage, unpack, 610 internalFormat, 611 width, height, format, type, pixels)) { 612 DBG("pbo upload succeeded\n"); 613 return; 614 } 615 616 DBG("pbo upload failed\n"); 617 } 618#else 619 (void) try_pbo_upload; 620 (void) check_pbo_format; 621#endif 622 623 624 /* st_CopyTexImage calls this function with pixels == NULL, with 625 * the expectation that the texture will be set up but nothing 626 * more will be done. This is where those calls return: 627 */ 628 if (compressed) { 629 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 630 unpack, 631 "glCompressedTexImage"); 632 } else { 633 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 634 format, type, 635 pixels, unpack, "glTexImage"); 636 } 637 if (!pixels) 638 return; 639 640 if (stImage->pt) { 641 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 642 PIPE_BUFFER_USAGE_CPU_WRITE); 643 dstRowStride = stImage->surface->pitch * stImage->surface->cpp; 644 } 645 else { 646 /* Allocate regular memory and store the image there temporarily. */ 647 if (texImage->IsCompressed) { 648 sizeInBytes = texImage->CompressedSize; 649 dstRowStride = 650 _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width); 651 assert(dims != 3); 652 } 653 else { 654 dstRowStride = postConvWidth * texelBytes; 655 sizeInBytes = depth * dstRowStride * postConvHeight; 656 } 657 658 texImage->Data = malloc(sizeInBytes); 659 } 660 661 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 662 width, height, depth, width * texelBytes, dstRowStride); 663 664 /* Copy data. Would like to know when it's ok for us to eg. use 665 * the blitter to copy. Or, use the hardware to do the format 666 * conversion and copy: 667 */ 668 if (compressed) { 669 memcpy(texImage->Data, pixels, imageSize); 670 } 671 else { 672 GLuint srcImageStride = _mesa_image_image_stride(unpack, width, height, 673 format, type); 674 int i; 675 const GLubyte *src = (const GLubyte *) pixels; 676 677 for (i = 0; i++ < depth;) { 678 if (!texImage->TexFormat->StoreImage(ctx, dims, 679 texImage->_BaseFormat, 680 texImage->TexFormat, 681 texImage->Data, 682 0, 0, 0, /* dstX/Y/Zoffset */ 683 dstRowStride, 684 texImage->ImageOffsets, 685 width, height, 1, 686 format, type, src, unpack)) { 687 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 688 } 689 690 if (stImage->pt && i < depth) { 691 st_texture_image_unmap(ctx->st, stImage); 692 texImage->Data = st_texture_image_map(ctx->st, stImage, i, 693 PIPE_BUFFER_USAGE_CPU_WRITE); 694 src += srcImageStride; 695 } 696 } 697 } 698 699 _mesa_unmap_teximage_pbo(ctx, unpack); 700 701 if (stImage->pt) { 702 st_texture_image_unmap(ctx->st, stImage); 703 texImage->Data = NULL; 704 } 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 PIPE_BUFFER_USAGE_CPU_READ); 800 texImage->RowStride = stImage->surface->pitch; 801 } 802 else { 803 /* Otherwise, the image should actually be stored in 804 * texImage->Data. This is pretty confusing for 805 * everybody, I'd much prefer to separate the two functions of 806 * texImage->Data - storage for texture images in main memory 807 * and access (ie mappings) of images. In other words, we'd 808 * create a new texImage->Map field and leave Data simply for 809 * storage. 810 */ 811 assert(texImage->Data); 812 } 813 814 depth = texImage->Depth; 815 texImage->Depth = 1; 816 817 dest = (GLubyte *) pixels; 818 819 for (i = 0; i++ < depth;) { 820 if (compressed) { 821 _mesa_get_compressed_teximage(ctx, target, level, dest, 822 texObj, texImage); 823 } else { 824 _mesa_get_teximage(ctx, target, level, format, type, dest, 825 texObj, texImage); 826 } 827 828 if (stImage->pt && i < depth) { 829 st_texture_image_unmap(ctx->st, stImage); 830 texImage->Data = st_texture_image_map(ctx->st, stImage, i, 831 PIPE_BUFFER_USAGE_CPU_READ); 832 dest += dstImageStride; 833 } 834 } 835 836 texImage->Depth = depth; 837 838 /* Unmap */ 839 if (stImage->pt) { 840 st_texture_image_unmap(ctx->st, stImage); 841 texImage->Data = NULL; 842 } 843} 844 845 846static void 847st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 848 GLenum format, GLenum type, GLvoid * pixels, 849 struct gl_texture_object *texObj, 850 struct gl_texture_image *texImage) 851{ 852 st_get_tex_image(ctx, target, level, format, type, pixels, 853 texObj, texImage, 0); 854} 855 856 857static void 858st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 859 GLvoid *pixels, 860 const struct gl_texture_object *texObj, 861 const struct gl_texture_image *texImage) 862{ 863 st_get_tex_image(ctx, target, level, 0, 0, pixels, 864 (struct gl_texture_object *) texObj, 865 (struct gl_texture_image *) texImage, 1); 866} 867 868 869 870static void 871st_TexSubimage(GLcontext * ctx, 872 GLint dims, 873 GLenum target, GLint level, 874 GLint xoffset, GLint yoffset, GLint zoffset, 875 GLint width, GLint height, GLint depth, 876 GLenum format, GLenum type, const void *pixels, 877 const struct gl_pixelstore_attrib *packing, 878 struct gl_texture_object *texObj, 879 struct gl_texture_image *texImage) 880{ 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 PIPE_BUFFER_USAGE_CPU_WRITE); 904 dstRowStride = stImage->surface->pitch * stImage->surface->cpp; 905 } 906 907 if (!texImage->Data) { 908 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 909 return; 910 } 911 912 src = (const GLubyte *) pixels; 913 914 for (i = 0; i++ < depth;) { 915 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 916 texImage->TexFormat, 917 texImage->Data, 918 xoffset, yoffset, 0, 919 dstRowStride, 920 texImage->ImageOffsets, 921 width, height, 1, 922 format, type, src, packing)) { 923 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 924 } 925 926 if (stImage->pt && i < depth) { 927 /* map next slice of 3D texture */ 928 st_texture_image_unmap(ctx->st, stImage); 929 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset + i, 930 PIPE_BUFFER_USAGE_CPU_WRITE); 931 src += srcImageStride; 932 } 933 } 934 935 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 936 ctx->Driver.GenerateMipmap(ctx, target, texObj); 937 } 938 939 _mesa_unmap_teximage_pbo(ctx, packing); 940 941 if (stImage->pt) { 942 st_texture_image_unmap(ctx->st, stImage); 943 texImage->Data = NULL; 944 } 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 PIPE_BUFFER_USAGE_CPU_WRITE); 1065 1066 assert(width <= MAX_WIDTH); 1067 1068 /* 1069 * To avoid a large temp memory allocation, do copy row by row. 1070 */ 1071 if (baseFormat == GL_DEPTH_COMPONENT) { 1072 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1073 ctx->Pixel.DepthBias != 0.0F); 1074 1075 for (row = 0; row < height; row++, srcY++, destY += yStep) { 1076 uint data[MAX_WIDTH]; 1077 pipe_get_tile_z(pipe, src_surf, srcX, srcY, width, 1, data); 1078 if (scaleOrBias) { 1079 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1080 } 1081 pipe_put_tile_z(pipe, dest_surf, destX, destY, width, 1, data); 1082 } 1083 } 1084 else { 1085 /* RGBA format */ 1086 for (row = 0; row < height; row++, srcY++, destY += yStep) { 1087 float data[4 * MAX_WIDTH]; 1088 pipe_get_tile_rgba(pipe, src_surf, srcX, srcY, width, 1, data); 1089 /* XXX we're ignoring convolution for now */ 1090 if (ctx->_ImageTransferState) { 1091 _mesa_apply_rgba_transfer_ops(ctx, 1092 ctx->_ImageTransferState & ~IMAGE_CONVOLUTION_BIT, 1093 width, (GLfloat (*)[4]) data); 1094 } 1095 pipe_put_tile_rgba(pipe, dest_surf, destX, destY, width, 1, data); 1096 } 1097 } 1098 1099 screen->tex_surface_release(screen, &dest_surf); 1100} 1101 1102 1103 1104 1105/** 1106 * Do a CopyTex[Sub]Image using an optimized hardware (blit) path. 1107 * Note that the region to copy has already been clip tested. 1108 * 1109 * Note: srcY=0=Bottom of renderbuffer 1110 * 1111 * \return GL_TRUE if success, GL_FALSE if failure (use a fallback) 1112 */ 1113static void 1114do_copy_texsubimage(GLcontext *ctx, 1115 GLenum target, GLint level, 1116 GLint destX, GLint destY, GLint destZ, 1117 GLint srcX, GLint srcY, 1118 GLsizei width, GLsizei height) 1119{ 1120 struct gl_texture_unit *texUnit = 1121 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1122 struct gl_texture_object *texObj = 1123 _mesa_select_tex_object(ctx, texUnit, target); 1124 struct gl_texture_image *texImage = 1125 _mesa_select_tex_image(ctx, texObj, target, level); 1126 struct st_texture_image *stImage = st_texture_image(texImage); 1127 GLenum baseFormat = texImage->InternalFormat; 1128 struct gl_framebuffer *fb = ctx->ReadBuffer; 1129 struct st_renderbuffer *strb; 1130 struct pipe_context *pipe = ctx->st->pipe; 1131 struct pipe_screen *screen = pipe->screen; 1132 uint dest_format, src_format; 1133 uint do_flip = FALSE; 1134 GLboolean use_fallback = GL_TRUE; 1135 1136 (void) texImage; 1137 1138 /* determine if copying depth or color data */ 1139 if (baseFormat == GL_DEPTH_COMPONENT) { 1140 strb = st_renderbuffer(fb->_DepthBuffer); 1141 } 1142 else if (baseFormat == GL_DEPTH_STENCIL_EXT) { 1143 strb = st_renderbuffer(fb->_StencilBuffer); 1144 } 1145 else { 1146 /* baseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1147 strb = st_renderbuffer(fb->_ColorReadBuffer); 1148 } 1149 1150 assert(strb); 1151 assert(strb->surface); 1152 assert(stImage->pt); 1153 1154 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1155 srcY = strb->Base.Height - srcY - height; 1156 do_flip = TRUE; 1157 } 1158 1159 src_format = strb->surface->format; 1160 dest_format = stImage->pt->format; 1161 1162 if (ctx->_ImageTransferState == 0x0) { 1163 /* do blit-style copy */ 1164 1165 /* XXX may need to invert image depending on window 1166 * vs. user-created FBO 1167 */ 1168 1169#if 0 1170 /* A bit of fiddling to get the blitter to work with -ve 1171 * pitches. But we get a nice inverted blit this way, so it's 1172 * worth it: 1173 */ 1174 intelEmitCopyBlit(intel, 1175 stImage->pt->cpp, 1176 -src->pitch, 1177 src->buffer, 1178 src->height * src->pitch * src->cpp, 1179 stImage->pt->pitch, 1180 stImage->pt->region->buffer, 1181 dest_offset, 1182 x, y + height, dstx, dsty, width, height, 1183 GL_COPY); /* ? */ 1184#else 1185 struct pipe_surface *dest_surface; 1186 1187 dest_surface = screen->get_tex_surface(screen, stImage->pt, stImage->face, 1188 stImage->level, destZ, 1189 PIPE_BUFFER_USAGE_GPU_WRITE); 1190 1191 assert(strb->surface->buffer); 1192 assert(dest_surface->buffer); 1193 1194 if (src_format == dest_format) { 1195 pipe->surface_copy(pipe, 1196 do_flip, 1197 /* dest */ 1198 dest_surface, 1199 destX, destY, 1200 /* src */ 1201 strb->surface, 1202 srcX, srcY, 1203 /* size */ 1204 width, height); 1205 use_fallback = GL_FALSE; 1206 } 1207 else if (screen->is_format_supported(screen, strb->surface->format, 1208 PIPE_TEXTURE) && 1209 screen->is_format_supported(screen, dest_surface->format, 1210 PIPE_SURFACE)) { 1211 util_blit_pixels(ctx->st->blit, 1212 strb->surface, 1213 srcX, do_flip ? srcY + height : srcY, 1214 srcX + width, do_flip ? srcY : srcY + height, 1215 dest_surface, 1216 destX, destY, destX + width, destY + height, 1217 0.0, PIPE_TEX_MIPFILTER_NEAREST); 1218 use_fallback = GL_FALSE; 1219 } 1220 1221 pipe_surface_reference(&dest_surface, NULL); 1222#endif 1223 } 1224 1225 if (use_fallback) { 1226 fallback_copy_texsubimage(ctx, target, level, 1227 strb, stImage, baseFormat, 1228 destX, destY, destZ, 1229 srcX, srcY, width, height); 1230 } 1231 1232 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1233 ctx->Driver.GenerateMipmap(ctx, target, texObj); 1234 } 1235} 1236 1237 1238 1239static void 1240st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1241 GLenum internalFormat, 1242 GLint x, GLint y, GLsizei width, GLint border) 1243{ 1244 struct gl_texture_unit *texUnit = 1245 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1246 struct gl_texture_object *texObj = 1247 _mesa_select_tex_object(ctx, texUnit, target); 1248 struct gl_texture_image *texImage = 1249 _mesa_select_tex_image(ctx, texObj, target, level); 1250 1251#if 0 1252 if (border) 1253 goto fail; 1254#endif 1255 1256 /* Setup or redefine the texture object, texture and texture 1257 * image. Don't populate yet. 1258 */ 1259 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1260 width, border, 1261 GL_RGBA, CHAN_TYPE, NULL, 1262 &ctx->DefaultPacking, texObj, texImage); 1263 1264 do_copy_texsubimage(ctx, target, level, 1265 0, 0, 0, 1266 x, y, width, 1); 1267} 1268 1269 1270static void 1271st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1272 GLenum internalFormat, 1273 GLint x, GLint y, GLsizei width, GLsizei height, 1274 GLint border) 1275{ 1276 struct gl_texture_unit *texUnit = 1277 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1278 struct gl_texture_object *texObj = 1279 _mesa_select_tex_object(ctx, texUnit, target); 1280 struct gl_texture_image *texImage = 1281 _mesa_select_tex_image(ctx, texObj, target, level); 1282 1283#if 0 1284 if (border) 1285 goto fail; 1286#endif 1287 1288 /* Setup or redefine the texture object, texture and texture 1289 * image. Don't populate yet. 1290 */ 1291 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1292 width, height, border, 1293 GL_RGBA, CHAN_TYPE, NULL, 1294 &ctx->DefaultPacking, texObj, texImage); 1295 1296 1297 do_copy_texsubimage(ctx, target, level, 1298 0, 0, 0, 1299 x, y, width, height); 1300} 1301 1302 1303static void 1304st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1305 GLint xoffset, GLint x, GLint y, GLsizei width) 1306{ 1307 const GLint yoffset = 0, zoffset = 0; 1308 const GLsizei height = 1; 1309 do_copy_texsubimage(ctx, target, level, 1310 xoffset, yoffset, zoffset, 1311 x, y, width, height); 1312} 1313 1314 1315static void 1316st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1317 GLint xoffset, GLint yoffset, 1318 GLint x, GLint y, GLsizei width, GLsizei height) 1319{ 1320 const GLint zoffset = 0; 1321 do_copy_texsubimage(ctx, target, level, 1322 xoffset, yoffset, zoffset, 1323 x, y, width, height); 1324} 1325 1326 1327static void 1328st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1329 GLint xoffset, GLint yoffset, GLint zoffset, 1330 GLint x, GLint y, GLsizei width, GLsizei height) 1331{ 1332 do_copy_texsubimage(ctx, target, level, 1333 xoffset, yoffset, zoffset, 1334 x, y, width, height); 1335} 1336 1337 1338 1339 1340/** 1341 * Compute which mipmap levels that really need to be sent to the hardware. 1342 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1343 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1344 */ 1345static void 1346calculate_first_last_level(struct st_texture_object *stObj) 1347{ 1348 struct gl_texture_object *tObj = &stObj->base; 1349 1350 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1351 * and having firstLevel and lastLevel as signed prevents the need for 1352 * extra sign checks. 1353 */ 1354 int firstLevel; 1355 int lastLevel; 1356 1357 /* Yes, this looks overly complicated, but it's all needed. 1358 */ 1359 switch (tObj->Target) { 1360 case GL_TEXTURE_1D: 1361 case GL_TEXTURE_2D: 1362 case GL_TEXTURE_3D: 1363 case GL_TEXTURE_CUBE_MAP: 1364 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1365 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1366 */ 1367 firstLevel = lastLevel = tObj->BaseLevel; 1368 } 1369 else { 1370 firstLevel = 0; 1371 lastLevel = MIN2(tObj->MaxLevel, tObj->Image[0][tObj->BaseLevel]->WidthLog2); 1372 } 1373 break; 1374 case GL_TEXTURE_RECTANGLE_NV: 1375 case GL_TEXTURE_4D_SGIS: 1376 firstLevel = lastLevel = 0; 1377 break; 1378 default: 1379 return; 1380 } 1381 1382 stObj->lastLevel = lastLevel; 1383} 1384 1385 1386static void 1387copy_image_data_to_texture(struct st_context *st, 1388 struct st_texture_object *stObj, 1389 GLuint dstLevel, 1390 struct st_texture_image *stImage) 1391{ 1392 if (stImage->pt) { 1393 /* Copy potentially with the blitter: 1394 */ 1395 st_texture_image_copy(st->pipe, 1396 stObj->pt, dstLevel, /* dest texture, level */ 1397 stImage->pt, /* src texture */ 1398 stImage->face 1399 ); 1400 1401 pipe_texture_release(&stImage->pt); 1402 } 1403 else if (stImage->base.Data) { 1404 assert(stImage->base.Data != NULL); 1405 1406 /* More straightforward upload. 1407 */ 1408 st_texture_image_data(st->pipe, 1409 stObj->pt, 1410 stImage->face, 1411 dstLevel, 1412 stImage->base.Data, 1413 stImage->base.RowStride, 1414 stImage->base.RowStride * 1415 stImage->base.Height); 1416 _mesa_align_free(stImage->base.Data); 1417 stImage->base.Data = NULL; 1418 } 1419 1420 pipe_texture_reference(&stImage->pt, stObj->pt); 1421} 1422 1423 1424/** 1425 * Called during state validation. When this function is finished, 1426 * the texture object should be ready for rendering. 1427 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1428 */ 1429GLboolean 1430st_finalize_texture(GLcontext *ctx, 1431 struct pipe_context *pipe, 1432 struct gl_texture_object *tObj, 1433 GLboolean *needFlush) 1434{ 1435 struct st_texture_object *stObj = st_texture_object(tObj); 1436 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1437 int comp_byte = 0; 1438 int cpp; 1439 GLuint face; 1440 struct st_texture_image *firstImage; 1441 1442 *needFlush = GL_FALSE; 1443 1444 /* We know/require this is true by now: 1445 */ 1446 assert(stObj->base._Complete); 1447 1448 /* What levels must the texture include at a minimum? 1449 */ 1450 calculate_first_last_level(stObj); 1451 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1452 1453 /* If both firstImage and stObj point to a texture which can contain 1454 * all active images, favour firstImage. Note that because of the 1455 * completeness requirement, we know that the image dimensions 1456 * will match. 1457 */ 1458 if (firstImage->pt && 1459 firstImage->pt != stObj->pt && 1460 firstImage->pt->last_level >= stObj->lastLevel) { 1461 1462 if (stObj->pt) 1463 pipe_texture_release(&stObj->pt); 1464 1465 pipe_texture_reference(&stObj->pt, firstImage->pt); 1466 } 1467 1468 if (firstImage->base.IsCompressed) { 1469 comp_byte = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1470 cpp = comp_byte; 1471 } 1472 else { 1473 cpp = firstImage->base.TexFormat->TexelBytes; 1474 } 1475 1476 /* If we already have a gallium texture, check that it matches the texture 1477 * object's format, target, size, num_levels, etc. 1478 */ 1479 if (stObj->pt) { 1480 const enum pipe_format fmt = 1481 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1482 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1483 stObj->pt->format != fmt || 1484 stObj->pt->last_level < stObj->lastLevel || 1485 stObj->pt->width[0] != firstImage->base.Width2 || 1486 stObj->pt->height[0] != firstImage->base.Height2 || 1487 stObj->pt->depth[0] != firstImage->base.Depth2 || 1488 stObj->pt->cpp != cpp || 1489 stObj->pt->compressed != firstImage->base.IsCompressed) { 1490 pipe_texture_release(&stObj->pt); 1491 } 1492 } 1493 1494 /* May need to create a new gallium texture: 1495 */ 1496 if (!stObj->pt) { 1497 stObj->pt = st_texture_create(ctx->st, 1498 gl_target_to_pipe(stObj->base.Target), 1499 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat), 1500 stObj->lastLevel, 1501 firstImage->base.Width2, 1502 firstImage->base.Height2, 1503 firstImage->base.Depth2, 1504 comp_byte, 1505 1506 ( PIPE_TEXTURE_USAGE_RENDER_TARGET | 1507 PIPE_TEXTURE_USAGE_SAMPLER )); 1508 1509 if (!stObj->pt) { 1510 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1511 return GL_FALSE; 1512 } 1513 } 1514 1515 /* Pull in any images not in the object's texture: 1516 */ 1517 for (face = 0; face < nr_faces; face++) { 1518 GLuint level; 1519 for (level = 0; level <= stObj->lastLevel; level++) { 1520 struct st_texture_image *stImage = 1521 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1522 1523 /* Need to import images in main memory or held in other textures. 1524 */ 1525 if (stImage && stObj->pt != stImage->pt) { 1526 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1527 *needFlush = GL_TRUE; 1528 } 1529 } 1530 } 1531 1532 return GL_TRUE; 1533} 1534 1535 1536 1537 1538void 1539st_init_texture_functions(struct dd_function_table *functions) 1540{ 1541 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1542 functions->TexImage1D = st_TexImage1D; 1543 functions->TexImage2D = st_TexImage2D; 1544 functions->TexImage3D = st_TexImage3D; 1545 functions->TexSubImage1D = st_TexSubImage1D; 1546 functions->TexSubImage2D = st_TexSubImage2D; 1547 functions->TexSubImage3D = st_TexSubImage3D; 1548 functions->CopyTexImage1D = st_CopyTexImage1D; 1549 functions->CopyTexImage2D = st_CopyTexImage2D; 1550 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1551 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1552 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1553 functions->GenerateMipmap = st_generate_mipmap; 1554 1555 functions->GetTexImage = st_GetTexImage; 1556 1557 /* compressed texture functions */ 1558 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1559 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1560 functions->CompressedTextureSize = _mesa_compressed_texture_size; 1561 1562 functions->NewTextureObject = st_NewTextureObject; 1563 functions->NewTextureImage = st_NewTextureImage; 1564 functions->DeleteTexture = st_DeleteTextureObject; 1565 functions->FreeTexImageData = st_FreeTextureImageData; 1566 functions->UpdateTexturePalette = 0; 1567 functions->IsTextureResident = st_IsTextureResident; 1568 1569 functions->TextureMemCpy = do_memcpy; 1570 1571 /* XXX Temporary until we can query pipe's texture sizes */ 1572 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1573} 1574