st_cb_texture.c revision 6b0fd0f1572cd6af1e931b70f75852de25d32649
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 if (width == 0 || height == 0 || depth == 0) { 310 /* no texture needed */ 311 return; 312 } 313 314 /* Guess a reasonable value for lastLevel. This is probably going 315 * to be wrong fairly often and might mean that we have to look at 316 * resizable buffers, or require that buffers implement lazy 317 * pagetable arrangements. 318 */ 319 if ((stObj->base.MinFilter == GL_NEAREST || 320 stObj->base.MinFilter == GL_LINEAR) && 321 stImage->level == firstLevel) { 322 lastLevel = firstLevel; 323 } 324 else { 325 GLuint l2width = logbase2(width); 326 GLuint l2height = logbase2(height); 327 GLuint l2depth = logbase2(depth); 328 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 329 } 330 331 if (stImage->base.IsCompressed) 332 comp_byte = compressed_num_bytes(stImage->base.TexFormat->MesaFormat); 333 334 stObj->pt = st_texture_create(st, 335 gl_target_to_pipe(stObj->base.Target), 336 st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat), 337 lastLevel, 338 width, 339 height, 340 depth, 341 comp_byte, 342 ( PIPE_TEXTURE_USAGE_RENDER_TARGET | 343 PIPE_TEXTURE_USAGE_SAMPLER )); 344 345 DBG("%s - success\n", __FUNCTION__); 346} 347 348 349/* There are actually quite a few combinations this will work for, 350 * more than what I've listed here. 351 */ 352static GLboolean 353check_pbo_format(GLint internalFormat, 354 GLenum format, GLenum type, 355 const struct gl_texture_format *mesa_format) 356{ 357 switch (internalFormat) { 358 case 4: 359 case GL_RGBA: 360 return (format == GL_BGRA && 361 (type == GL_UNSIGNED_BYTE || 362 type == GL_UNSIGNED_INT_8_8_8_8_REV) && 363 mesa_format == &_mesa_texformat_argb8888); 364 case 3: 365 case GL_RGB: 366 return (format == GL_RGB && 367 type == GL_UNSIGNED_SHORT_5_6_5 && 368 mesa_format == &_mesa_texformat_rgb565); 369 case GL_YCBCR_MESA: 370 return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE); 371 default: 372 return GL_FALSE; 373 } 374} 375 376 377/* XXX: Do this for TexSubImage also: 378 */ 379static GLboolean 380try_pbo_upload(GLcontext *ctx, 381 struct st_texture_image *stImage, 382 const struct gl_pixelstore_attrib *unpack, 383 GLint internalFormat, 384 GLint width, GLint height, 385 GLenum format, GLenum type, const void *pixels) 386{ 387 return GL_FALSE; /* XXX fix flushing/locking/blitting below */ 388#if 000 389 struct intel_context *intel = intel_context(ctx); 390 struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj); 391 GLuint src_offset, src_stride; 392 GLuint dst_offset, dst_stride; 393 394 if (!pbo || 395 ctx._ImageTransferState || 396 unpack->SkipPixels || unpack->SkipRows) { 397 _mesa_printf("%s: failure 1\n", __FUNCTION__); 398 return GL_FALSE; 399 } 400 401 src_offset = (GLuint) pixels; 402 403 if (unpack->RowLength > 0) 404 src_stride = unpack->RowLength; 405 else 406 src_stride = width; 407 408 dst_offset = st_texture_image_offset(stImage->pt, 409 stImage->face, 410 stImage->level); 411 412 dst_stride = stImage->pt->pitch; 413 414 { 415 struct _DriBufferObject *src_buffer = 416 intel_bufferobj_buffer(intel, pbo, INTEL_READ); 417 418 /* Temporary hack: cast to _DriBufferObject: 419 */ 420 struct _DriBufferObject *dst_buffer = 421 (struct _DriBufferObject *)stImage->pt->region->buffer; 422 423 424 intelEmitCopyBlit(intel, 425 stImage->pt->cpp, 426 src_stride, src_buffer, src_offset, 427 dst_stride, dst_buffer, dst_offset, 428 0, 0, 0, 0, width, height, 429 GL_COPY); 430 } 431 432 return GL_TRUE; 433#endif 434} 435 436 437/** 438 * Adjust pixel unpack params and image dimensions to strip off the 439 * texture border. 440 * Gallium doesn't support texture borders. They've seldem been used 441 * and seldom been implemented correctly anyway. 442 * \param unpackNew returns the new pixel unpack parameters 443 */ 444static void 445strip_texture_border(GLint border, 446 GLint *width, GLint *height, GLint *depth, 447 const struct gl_pixelstore_attrib *unpack, 448 struct gl_pixelstore_attrib *unpackNew) 449{ 450 assert(border > 0); /* sanity check */ 451 452 *unpackNew = *unpack; 453 454 if (unpackNew->RowLength == 0) 455 unpackNew->RowLength = *width; 456 457 if (depth && unpackNew->ImageHeight == 0) 458 unpackNew->ImageHeight = *height; 459 460 unpackNew->SkipPixels += border; 461 if (height) 462 unpackNew->SkipRows += border; 463 if (depth) 464 unpackNew->SkipImages += border; 465 466 assert(*width >= 3); 467 *width = *width - 2 * border; 468 if (height && *height >= 3) 469 *height = *height - 2 * border; 470 if (depth && *depth >= 3) 471 *depth = *depth - 2 * border; 472} 473 474 475static void 476st_TexImage(GLcontext * ctx, 477 GLint dims, 478 GLenum target, GLint level, 479 GLint internalFormat, 480 GLint width, GLint height, GLint depth, 481 GLint border, 482 GLenum format, GLenum type, const void *pixels, 483 const struct gl_pixelstore_attrib *unpack, 484 struct gl_texture_object *texObj, 485 struct gl_texture_image *texImage, 486 GLsizei imageSize, int compressed) 487{ 488 struct st_texture_object *stObj = st_texture_object(texObj); 489 struct st_texture_image *stImage = st_texture_image(texImage); 490 GLint postConvWidth, postConvHeight; 491 GLint texelBytes, sizeInBytes; 492 GLuint dstRowStride; 493 struct gl_pixelstore_attrib unpackNB; 494 495 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 496 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 497 498 /* gallium does not support texture borders, strip it off */ 499 if (border) { 500 strip_texture_border(border, &width, &height, &depth, 501 unpack, &unpackNB); 502 unpack = &unpackNB; 503 texImage->Width = width; 504 texImage->Height = height; 505 texImage->Depth = depth; 506 texImage->Border = 0; 507 border = 0; 508 } 509 510 postConvWidth = width; 511 postConvHeight = height; 512 513 stImage->face = _mesa_tex_target_to_face(target); 514 stImage->level = level; 515 516 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 517 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 518 &postConvHeight); 519 } 520 521 /* choose the texture format */ 522 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 523 format, type); 524 525 _mesa_set_fetch_functions(texImage, dims); 526 527 if (texImage->TexFormat->TexelBytes == 0) { 528 /* must be a compressed format */ 529 texelBytes = 0; 530 texImage->IsCompressed = GL_TRUE; 531 texImage->CompressedSize = 532 ctx->Driver.CompressedTextureSize(ctx, texImage->Width, 533 texImage->Height, texImage->Depth, 534 texImage->TexFormat->MesaFormat); 535 } 536 else { 537 texelBytes = texImage->TexFormat->TexelBytes; 538 539 /* Minimum pitch of 32 bytes */ 540 if (postConvWidth * texelBytes < 32) { 541 postConvWidth = 32 / texelBytes; 542 texImage->RowStride = postConvWidth; 543 } 544 545 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 546 /*assert(texImage->RowStride == postConvWidth);*/ 547 } 548 549 /* Release the reference to a potentially orphaned buffer. 550 * Release any old malloced memory. 551 */ 552 if (stImage->pt) { 553 pipe_texture_release(&stImage->pt); 554 assert(!texImage->Data); 555 } 556 else if (texImage->Data) { 557 _mesa_align_free(texImage->Data); 558 } 559 560 /* If this is the only mipmap level in the texture, could call 561 * bmBufferData with NULL data to free the old block and avoid 562 * waiting on any outstanding fences. 563 */ 564 if (stObj->pt && 565 (stObj->teximage_realloc || 566 (/*stObj->pt->first_level == level &&*/ 567 stObj->pt->last_level == level && 568 stObj->pt->target != PIPE_TEXTURE_CUBE && 569 !st_texture_match_image(stObj->pt, &stImage->base, 570 stImage->face, stImage->level)))) { 571 572 DBG("release it\n"); 573 pipe_texture_release(&stObj->pt); 574 assert(!stObj->pt); 575 stObj->teximage_realloc = FALSE; 576 } 577 578 if (!stObj->pt) { 579 guess_and_alloc_texture(ctx->st, stObj, stImage); 580 if (!stObj->pt) { 581 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 582 return; 583 } 584 } 585 586 assert(!stImage->pt); 587 588 if (stObj->pt && 589 st_texture_match_image(stObj->pt, &stImage->base, 590 stImage->face, stImage->level)) { 591 592 pipe_texture_reference(&stImage->pt, stObj->pt); 593 assert(stImage->pt); 594 } 595 596 if (!stImage->pt) 597 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 598 599#if 0 /* XXX FIX when st_buffer_objects are in place */ 600 /* PBO fastpaths: 601 */ 602 if (dims <= 2 && 603 stImage->pt && 604 intel_buffer_object(unpack->BufferObj) && 605 check_pbo_format(internalFormat, format, 606 type, texImage->TexFormat)) { 607 608 DBG("trying pbo upload\n"); 609 610 611 612 /* Otherwise, attempt to use the blitter for PBO image uploads. 613 */ 614 if (try_pbo_upload(intel, stImage, unpack, 615 internalFormat, 616 width, height, format, type, pixels)) { 617 DBG("pbo upload succeeded\n"); 618 return; 619 } 620 621 DBG("pbo upload failed\n"); 622 } 623#else 624 (void) try_pbo_upload; 625 (void) check_pbo_format; 626#endif 627 628 629 /* st_CopyTexImage calls this function with pixels == NULL, with 630 * the expectation that the texture will be set up but nothing 631 * more will be done. This is where those calls return: 632 */ 633 if (compressed) { 634 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 635 unpack, 636 "glCompressedTexImage"); 637 } else { 638 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 639 format, type, 640 pixels, unpack, "glTexImage"); 641 } 642 if (!pixels) 643 return; 644 645 if (stImage->pt) { 646 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 647 PIPE_BUFFER_USAGE_CPU_WRITE); 648 dstRowStride = stImage->surface->pitch * stImage->surface->cpp; 649 } 650 else { 651 /* Allocate regular memory and store the image there temporarily. */ 652 if (texImage->IsCompressed) { 653 sizeInBytes = texImage->CompressedSize; 654 dstRowStride = 655 _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width); 656 assert(dims != 3); 657 } 658 else { 659 dstRowStride = postConvWidth * texelBytes; 660 sizeInBytes = depth * dstRowStride * postConvHeight; 661 } 662 663 texImage->Data = malloc(sizeInBytes); 664 } 665 666 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 667 width, height, depth, width * texelBytes, dstRowStride); 668 669 /* Copy data. Would like to know when it's ok for us to eg. use 670 * the blitter to copy. Or, use the hardware to do the format 671 * conversion and copy: 672 */ 673 if (compressed) { 674 memcpy(texImage->Data, pixels, imageSize); 675 } 676 else { 677 GLuint srcImageStride = _mesa_image_image_stride(unpack, width, height, 678 format, type); 679 int i; 680 const GLubyte *src = (const GLubyte *) pixels; 681 682 for (i = 0; i++ < depth;) { 683 if (!texImage->TexFormat->StoreImage(ctx, dims, 684 texImage->_BaseFormat, 685 texImage->TexFormat, 686 texImage->Data, 687 0, 0, 0, /* dstX/Y/Zoffset */ 688 dstRowStride, 689 texImage->ImageOffsets, 690 width, height, 1, 691 format, type, src, unpack)) { 692 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 693 } 694 695 if (stImage->pt && i < depth) { 696 st_texture_image_unmap(ctx->st, stImage); 697 texImage->Data = st_texture_image_map(ctx->st, stImage, i, 698 PIPE_BUFFER_USAGE_CPU_WRITE); 699 src += srcImageStride; 700 } 701 } 702 } 703 704 _mesa_unmap_teximage_pbo(ctx, unpack); 705 706 if (stImage->pt) { 707 st_texture_image_unmap(ctx->st, stImage); 708 texImage->Data = NULL; 709 } 710 711 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 712 ctx->Driver.GenerateMipmap(ctx, target, texObj); 713 } 714} 715 716 717static void 718st_TexImage3D(GLcontext * ctx, 719 GLenum target, GLint level, 720 GLint internalFormat, 721 GLint width, GLint height, GLint depth, 722 GLint border, 723 GLenum format, GLenum type, const void *pixels, 724 const struct gl_pixelstore_attrib *unpack, 725 struct gl_texture_object *texObj, 726 struct gl_texture_image *texImage) 727{ 728 st_TexImage(ctx, 3, target, level, 729 internalFormat, width, height, depth, border, 730 format, type, pixels, unpack, texObj, texImage, 0, 0); 731} 732 733 734static void 735st_TexImage2D(GLcontext * ctx, 736 GLenum target, GLint level, 737 GLint internalFormat, 738 GLint width, GLint height, GLint border, 739 GLenum format, GLenum type, const void *pixels, 740 const struct gl_pixelstore_attrib *unpack, 741 struct gl_texture_object *texObj, 742 struct gl_texture_image *texImage) 743{ 744 st_TexImage(ctx, 2, target, level, 745 internalFormat, width, height, 1, border, 746 format, type, pixels, unpack, texObj, texImage, 0, 0); 747} 748 749 750static void 751st_TexImage1D(GLcontext * ctx, 752 GLenum target, GLint level, 753 GLint internalFormat, 754 GLint width, GLint border, 755 GLenum format, GLenum type, const void *pixels, 756 const struct gl_pixelstore_attrib *unpack, 757 struct gl_texture_object *texObj, 758 struct gl_texture_image *texImage) 759{ 760 st_TexImage(ctx, 1, target, level, 761 internalFormat, width, 1, 1, border, 762 format, type, pixels, unpack, texObj, texImage, 0, 0); 763} 764 765 766static void 767st_CompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level, 768 GLint internalFormat, 769 GLint width, GLint height, GLint border, 770 GLsizei imageSize, const GLvoid *data, 771 struct gl_texture_object *texObj, 772 struct gl_texture_image *texImage ) 773{ 774 st_TexImage(ctx, 2, target, level, 775 internalFormat, width, height, 1, border, 776 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, 1); 777} 778 779 780/** 781 * Need to map texture image into memory before copying image data, 782 * then unmap it. 783 */ 784static void 785st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 786 GLenum format, GLenum type, GLvoid * pixels, 787 struct gl_texture_object *texObj, 788 struct gl_texture_image *texImage, int compressed) 789{ 790 struct st_texture_image *stImage = st_texture_image(texImage); 791 GLuint dstImageStride = _mesa_image_image_stride(&ctx->Pack, texImage->Width, 792 texImage->Height, format, 793 type); 794 GLuint depth; 795 int i; 796 GLubyte *dest; 797 798 /* Map */ 799 if (stImage->pt) { 800 /* Image is stored in hardware format in a buffer managed by the 801 * kernel. Need to explicitly map and unmap it. 802 */ 803 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 804 PIPE_BUFFER_USAGE_CPU_READ); 805 texImage->RowStride = stImage->surface->pitch; 806 } 807 else { 808 /* Otherwise, the image should actually be stored in 809 * texImage->Data. This is pretty confusing for 810 * everybody, I'd much prefer to separate the two functions of 811 * texImage->Data - storage for texture images in main memory 812 * and access (ie mappings) of images. In other words, we'd 813 * create a new texImage->Map field and leave Data simply for 814 * storage. 815 */ 816 assert(texImage->Data); 817 } 818 819 depth = texImage->Depth; 820 texImage->Depth = 1; 821 822 dest = (GLubyte *) pixels; 823 824 for (i = 0; i++ < depth;) { 825 if (compressed) { 826 _mesa_get_compressed_teximage(ctx, target, level, dest, 827 texObj, texImage); 828 } else { 829 _mesa_get_teximage(ctx, target, level, format, type, dest, 830 texObj, texImage); 831 } 832 833 if (stImage->pt && i < depth) { 834 st_texture_image_unmap(ctx->st, stImage); 835 texImage->Data = st_texture_image_map(ctx->st, stImage, i, 836 PIPE_BUFFER_USAGE_CPU_READ); 837 dest += dstImageStride; 838 } 839 } 840 841 texImage->Depth = depth; 842 843 /* Unmap */ 844 if (stImage->pt) { 845 st_texture_image_unmap(ctx->st, stImage); 846 texImage->Data = NULL; 847 } 848} 849 850 851static void 852st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 853 GLenum format, GLenum type, GLvoid * pixels, 854 struct gl_texture_object *texObj, 855 struct gl_texture_image *texImage) 856{ 857 st_get_tex_image(ctx, target, level, format, type, pixels, 858 texObj, texImage, 0); 859} 860 861 862static void 863st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 864 GLvoid *pixels, 865 const struct gl_texture_object *texObj, 866 const struct gl_texture_image *texImage) 867{ 868 st_get_tex_image(ctx, target, level, 0, 0, pixels, 869 (struct gl_texture_object *) texObj, 870 (struct gl_texture_image *) texImage, 1); 871} 872 873 874 875static void 876st_TexSubimage(GLcontext * ctx, 877 GLint dims, 878 GLenum target, GLint level, 879 GLint xoffset, GLint yoffset, GLint zoffset, 880 GLint width, GLint height, GLint depth, 881 GLenum format, GLenum type, const void *pixels, 882 const struct gl_pixelstore_attrib *packing, 883 struct gl_texture_object *texObj, 884 struct gl_texture_image *texImage) 885{ 886 struct st_texture_image *stImage = st_texture_image(texImage); 887 GLuint dstRowStride; 888 GLuint srcImageStride = _mesa_image_image_stride(packing, width, height, 889 format, type); 890 int i; 891 const GLubyte *src; 892 893 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 894 _mesa_lookup_enum_by_nr(target), 895 level, xoffset, yoffset, width, height); 896 897 pixels = 898 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 899 type, pixels, packing, "glTexSubImage2D"); 900 if (!pixels) 901 return; 902 903 /* Map buffer if necessary. Need to lock to prevent other contexts 904 * from uploading the buffer under us. 905 */ 906 if (stImage->pt) { 907 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 908 PIPE_BUFFER_USAGE_CPU_WRITE); 909 dstRowStride = stImage->surface->pitch * stImage->surface->cpp; 910 } 911 912 if (!texImage->Data) { 913 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 914 return; 915 } 916 917 src = (const GLubyte *) pixels; 918 919 for (i = 0; i++ < depth;) { 920 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 921 texImage->TexFormat, 922 texImage->Data, 923 xoffset, yoffset, 0, 924 dstRowStride, 925 texImage->ImageOffsets, 926 width, height, 1, 927 format, type, src, packing)) { 928 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 929 } 930 931 if (stImage->pt && i < depth) { 932 /* map next slice of 3D texture */ 933 st_texture_image_unmap(ctx->st, stImage); 934 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset + i, 935 PIPE_BUFFER_USAGE_CPU_WRITE); 936 src += srcImageStride; 937 } 938 } 939 940 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 941 ctx->Driver.GenerateMipmap(ctx, target, texObj); 942 } 943 944 _mesa_unmap_teximage_pbo(ctx, packing); 945 946 if (stImage->pt) { 947 st_texture_image_unmap(ctx->st, stImage); 948 texImage->Data = NULL; 949 } 950} 951 952 953 954static void 955st_TexSubImage3D(GLcontext * ctx, 956 GLenum target, 957 GLint level, 958 GLint xoffset, GLint yoffset, GLint zoffset, 959 GLsizei width, GLsizei height, GLsizei depth, 960 GLenum format, GLenum type, 961 const GLvoid * pixels, 962 const struct gl_pixelstore_attrib *packing, 963 struct gl_texture_object *texObj, 964 struct gl_texture_image *texImage) 965{ 966 st_TexSubimage(ctx, 3, target, level, 967 xoffset, yoffset, zoffset, 968 width, height, depth, 969 format, type, pixels, packing, texObj, texImage); 970} 971 972 973 974static void 975st_TexSubImage2D(GLcontext * ctx, 976 GLenum target, 977 GLint level, 978 GLint xoffset, GLint yoffset, 979 GLsizei width, GLsizei height, 980 GLenum format, GLenum type, 981 const GLvoid * pixels, 982 const struct gl_pixelstore_attrib *packing, 983 struct gl_texture_object *texObj, 984 struct gl_texture_image *texImage) 985{ 986 st_TexSubimage(ctx, 2, target, level, 987 xoffset, yoffset, 0, 988 width, height, 1, 989 format, type, pixels, packing, texObj, texImage); 990} 991 992 993static void 994st_TexSubImage1D(GLcontext * ctx, 995 GLenum target, 996 GLint level, 997 GLint xoffset, 998 GLsizei width, 999 GLenum format, GLenum type, 1000 const GLvoid * pixels, 1001 const struct gl_pixelstore_attrib *packing, 1002 struct gl_texture_object *texObj, 1003 struct gl_texture_image *texImage) 1004{ 1005 st_TexSubimage(ctx, 1, target, level, 1006 xoffset, 0, 0, 1007 width, 1, 1, 1008 format, type, pixels, packing, texObj, texImage); 1009} 1010 1011 1012 1013/** 1014 * Return 0 for GL_TEXTURE_CUBE_MAP_POSITIVE_X, 1015 * 1 for GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 1016 * etc. 1017 * XXX duplicated from main/teximage.c 1018 */ 1019static uint 1020texture_face(GLenum target) 1021{ 1022 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && 1023 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) 1024 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; 1025 else 1026 return 0; 1027} 1028 1029 1030 1031/** 1032 * Do a CopyTexSubImage operation by mapping the source surface and 1033 * dest surface and using get_tile()/put_tile() to access the pixels/texels. 1034 * 1035 * Note: srcY=0=TOP of renderbuffer 1036 */ 1037static void 1038fallback_copy_texsubimage(GLcontext *ctx, 1039 GLenum target, 1040 GLint level, 1041 struct st_renderbuffer *strb, 1042 struct st_texture_image *stImage, 1043 GLenum baseFormat, 1044 GLint destX, GLint destY, GLint destZ, 1045 GLint srcX, GLint srcY, 1046 GLsizei width, GLsizei height) 1047{ 1048 struct pipe_context *pipe = ctx->st->pipe; 1049 struct pipe_screen *screen = pipe->screen; 1050 const uint face = texture_face(target); 1051 struct pipe_texture *pt = stImage->pt; 1052 struct pipe_surface *src_surf, *dest_surf; 1053 GLint row, yStep; 1054 1055 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1056 1057 /* determine bottom-to-top vs. top-to-bottom order */ 1058 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1059 destY = height - 1 - destY; 1060 yStep = -1; 1061 } 1062 else { 1063 yStep = 1; 1064 } 1065 1066 src_surf = strb->surface; 1067 src_surf = screen->get_tex_surface(screen, strb->texture, face, level, destZ, 1068 PIPE_BUFFER_USAGE_CPU_READ); 1069 1070 dest_surf = screen->get_tex_surface(screen, pt, face, level, destZ, 1071 PIPE_BUFFER_USAGE_CPU_WRITE); 1072 1073 assert(width <= MAX_WIDTH); 1074 1075 /* 1076 * To avoid a large temp memory allocation, do copy row by row. 1077 */ 1078 if (baseFormat == GL_DEPTH_COMPONENT) { 1079 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1080 ctx->Pixel.DepthBias != 0.0F); 1081 1082 for (row = 0; row < height; row++, srcY++, destY += yStep) { 1083 uint data[MAX_WIDTH]; 1084 pipe_get_tile_z(pipe, src_surf, srcX, srcY, width, 1, data); 1085 if (scaleOrBias) { 1086 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1087 } 1088 pipe_put_tile_z(pipe, dest_surf, destX, destY, width, 1, data); 1089 } 1090 } 1091 else { 1092 /* RGBA format */ 1093 for (row = 0; row < height; row++, srcY++, destY += yStep) { 1094 float data[4 * MAX_WIDTH]; 1095 pipe_get_tile_rgba(pipe, src_surf, srcX, srcY, width, 1, data); 1096 /* XXX we're ignoring convolution for now */ 1097 if (ctx->_ImageTransferState) { 1098 _mesa_apply_rgba_transfer_ops(ctx, 1099 ctx->_ImageTransferState & ~IMAGE_CONVOLUTION_BIT, 1100 width, (GLfloat (*)[4]) data); 1101 } 1102 pipe_put_tile_rgba(pipe, dest_surf, destX, destY, width, 1, data); 1103 } 1104 } 1105 1106 screen->tex_surface_release(screen, &dest_surf); 1107 screen->tex_surface_release(screen, &src_surf); 1108} 1109 1110 1111 1112 1113/** 1114 * Do a CopyTex[Sub]Image using an optimized hardware (blit) path. 1115 * Note that the region to copy has already been clip tested. 1116 * 1117 * Note: srcY=0=Bottom of renderbuffer 1118 * 1119 * \return GL_TRUE if success, GL_FALSE if failure (use a fallback) 1120 */ 1121static void 1122do_copy_texsubimage(GLcontext *ctx, 1123 GLenum target, GLint level, 1124 GLint destX, GLint destY, GLint destZ, 1125 GLint srcX, GLint srcY, 1126 GLsizei width, GLsizei height) 1127{ 1128 struct gl_texture_unit *texUnit = 1129 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1130 struct gl_texture_object *texObj = 1131 _mesa_select_tex_object(ctx, texUnit, target); 1132 struct gl_texture_image *texImage = 1133 _mesa_select_tex_image(ctx, texObj, target, level); 1134 struct st_texture_image *stImage = st_texture_image(texImage); 1135 GLenum baseFormat = texImage->InternalFormat; 1136 struct gl_framebuffer *fb = ctx->ReadBuffer; 1137 struct st_renderbuffer *strb; 1138 struct pipe_context *pipe = ctx->st->pipe; 1139 struct pipe_screen *screen = pipe->screen; 1140 struct pipe_surface *dest_surface; 1141 uint dest_format, src_format; 1142 uint do_flip = FALSE; 1143 GLboolean use_fallback = GL_TRUE; 1144 1145 (void) texImage; 1146 1147 /* determine if copying depth or color data */ 1148 if (baseFormat == GL_DEPTH_COMPONENT) { 1149 strb = st_renderbuffer(fb->_DepthBuffer); 1150 } 1151 else if (baseFormat == GL_DEPTH_STENCIL_EXT) { 1152 strb = st_renderbuffer(fb->_StencilBuffer); 1153 } 1154 else { 1155 /* baseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1156 strb = st_renderbuffer(fb->_ColorReadBuffer); 1157 } 1158 1159 assert(strb); 1160 assert(strb->surface); 1161 assert(stImage->pt); 1162 1163 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1164 srcY = strb->Base.Height - srcY - height; 1165 do_flip = TRUE; 1166 } 1167 1168 src_format = strb->surface->format; 1169 dest_format = stImage->pt->format; 1170 1171 dest_surface = screen->get_tex_surface(screen, stImage->pt, stImage->face, 1172 stImage->level, destZ, 1173 PIPE_BUFFER_USAGE_CPU_WRITE); 1174 1175 if (ctx->_ImageTransferState == 0x0 && 1176 strb->surface->buffer && 1177 dest_surface->buffer) { 1178 /* do blit-style copy */ 1179 1180 /* XXX may need to invert image depending on window 1181 * vs. user-created FBO 1182 */ 1183 1184#if 0 1185 /* A bit of fiddling to get the blitter to work with -ve 1186 * pitches. But we get a nice inverted blit this way, so it's 1187 * worth it: 1188 */ 1189 intelEmitCopyBlit(intel, 1190 stImage->pt->cpp, 1191 -src->pitch, 1192 src->buffer, 1193 src->height * src->pitch * src->cpp, 1194 stImage->pt->pitch, 1195 stImage->pt->region->buffer, 1196 dest_offset, 1197 x, y + height, dstx, dsty, width, height, 1198 GL_COPY); /* ? */ 1199#else 1200 1201 if (src_format == dest_format) { 1202 pipe->surface_copy(pipe, 1203 do_flip, 1204 /* dest */ 1205 dest_surface, 1206 destX, destY, 1207 /* src */ 1208 strb->surface, 1209 srcX, srcY, 1210 /* size */ 1211 width, height); 1212 use_fallback = GL_FALSE; 1213 } 1214 else if (screen->is_format_supported(screen, strb->surface->format, 1215 PIPE_TEXTURE) && 1216 screen->is_format_supported(screen, dest_surface->format, 1217 PIPE_SURFACE)) { 1218 util_blit_pixels(ctx->st->blit, 1219 strb->surface, 1220 srcX, do_flip ? srcY + height : srcY, 1221 srcX + width, do_flip ? srcY : srcY + height, 1222 dest_surface, 1223 destX, destY, destX + width, destY + height, 1224 0.0, PIPE_TEX_MIPFILTER_NEAREST); 1225 use_fallback = GL_FALSE; 1226 } 1227#endif 1228 } 1229 1230 if (use_fallback) { 1231 fallback_copy_texsubimage(ctx, target, level, 1232 strb, stImage, baseFormat, 1233 destX, destY, destZ, 1234 srcX, srcY, width, height); 1235 } 1236 1237 pipe_surface_reference(&dest_surface, NULL); 1238 1239 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1240 ctx->Driver.GenerateMipmap(ctx, target, texObj); 1241 } 1242} 1243 1244 1245 1246static void 1247st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1248 GLenum internalFormat, 1249 GLint x, GLint y, GLsizei width, GLint border) 1250{ 1251 struct gl_texture_unit *texUnit = 1252 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1253 struct gl_texture_object *texObj = 1254 _mesa_select_tex_object(ctx, texUnit, target); 1255 struct gl_texture_image *texImage = 1256 _mesa_select_tex_image(ctx, texObj, target, level); 1257 1258#if 0 1259 if (border) 1260 goto fail; 1261#endif 1262 1263 /* Setup or redefine the texture object, texture and texture 1264 * image. Don't populate yet. 1265 */ 1266 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1267 width, border, 1268 GL_RGBA, CHAN_TYPE, NULL, 1269 &ctx->DefaultPacking, texObj, texImage); 1270 1271 do_copy_texsubimage(ctx, target, level, 1272 0, 0, 0, 1273 x, y, width, 1); 1274} 1275 1276 1277static void 1278st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1279 GLenum internalFormat, 1280 GLint x, GLint y, GLsizei width, GLsizei height, 1281 GLint border) 1282{ 1283 struct gl_texture_unit *texUnit = 1284 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1285 struct gl_texture_object *texObj = 1286 _mesa_select_tex_object(ctx, texUnit, target); 1287 struct gl_texture_image *texImage = 1288 _mesa_select_tex_image(ctx, texObj, target, level); 1289 1290#if 0 1291 if (border) 1292 goto fail; 1293#endif 1294 1295 /* Setup or redefine the texture object, texture and texture 1296 * image. Don't populate yet. 1297 */ 1298 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1299 width, height, border, 1300 GL_RGBA, CHAN_TYPE, NULL, 1301 &ctx->DefaultPacking, texObj, texImage); 1302 1303 1304 do_copy_texsubimage(ctx, target, level, 1305 0, 0, 0, 1306 x, y, width, height); 1307} 1308 1309 1310static void 1311st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1312 GLint xoffset, GLint x, GLint y, GLsizei width) 1313{ 1314 const GLint yoffset = 0, zoffset = 0; 1315 const GLsizei height = 1; 1316 do_copy_texsubimage(ctx, target, level, 1317 xoffset, yoffset, zoffset, 1318 x, y, width, height); 1319} 1320 1321 1322static void 1323st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1324 GLint xoffset, GLint yoffset, 1325 GLint x, GLint y, GLsizei width, GLsizei height) 1326{ 1327 const GLint zoffset = 0; 1328 do_copy_texsubimage(ctx, target, level, 1329 xoffset, yoffset, zoffset, 1330 x, y, width, height); 1331} 1332 1333 1334static void 1335st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1336 GLint xoffset, GLint yoffset, GLint zoffset, 1337 GLint x, GLint y, GLsizei width, GLsizei height) 1338{ 1339 do_copy_texsubimage(ctx, target, level, 1340 xoffset, yoffset, zoffset, 1341 x, y, width, height); 1342} 1343 1344 1345 1346 1347/** 1348 * Compute which mipmap levels that really need to be sent to the hardware. 1349 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1350 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1351 */ 1352static void 1353calculate_first_last_level(struct st_texture_object *stObj) 1354{ 1355 struct gl_texture_object *tObj = &stObj->base; 1356 1357 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1358 * and having firstLevel and lastLevel as signed prevents the need for 1359 * extra sign checks. 1360 */ 1361 int firstLevel; 1362 int lastLevel; 1363 1364 /* Yes, this looks overly complicated, but it's all needed. 1365 */ 1366 switch (tObj->Target) { 1367 case GL_TEXTURE_1D: 1368 case GL_TEXTURE_2D: 1369 case GL_TEXTURE_3D: 1370 case GL_TEXTURE_CUBE_MAP: 1371 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1372 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1373 */ 1374 firstLevel = lastLevel = tObj->BaseLevel; 1375 } 1376 else { 1377 firstLevel = 0; 1378 lastLevel = MIN2(tObj->MaxLevel, tObj->Image[0][tObj->BaseLevel]->WidthLog2); 1379 } 1380 break; 1381 case GL_TEXTURE_RECTANGLE_NV: 1382 case GL_TEXTURE_4D_SGIS: 1383 firstLevel = lastLevel = 0; 1384 break; 1385 default: 1386 return; 1387 } 1388 1389 stObj->lastLevel = lastLevel; 1390} 1391 1392 1393static void 1394copy_image_data_to_texture(struct st_context *st, 1395 struct st_texture_object *stObj, 1396 GLuint dstLevel, 1397 struct st_texture_image *stImage) 1398{ 1399 if (stImage->pt) { 1400 /* Copy potentially with the blitter: 1401 */ 1402 st_texture_image_copy(st->pipe, 1403 stObj->pt, dstLevel, /* dest texture, level */ 1404 stImage->pt, /* src texture */ 1405 stImage->face 1406 ); 1407 1408 pipe_texture_release(&stImage->pt); 1409 } 1410 else if (stImage->base.Data) { 1411 assert(stImage->base.Data != NULL); 1412 1413 /* More straightforward upload. 1414 */ 1415 st_texture_image_data(st->pipe, 1416 stObj->pt, 1417 stImage->face, 1418 dstLevel, 1419 stImage->base.Data, 1420 stImage->base.RowStride, 1421 stImage->base.RowStride * 1422 stImage->base.Height); 1423 _mesa_align_free(stImage->base.Data); 1424 stImage->base.Data = NULL; 1425 } 1426 1427 pipe_texture_reference(&stImage->pt, stObj->pt); 1428} 1429 1430 1431/** 1432 * Called during state validation. When this function is finished, 1433 * the texture object should be ready for rendering. 1434 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1435 */ 1436GLboolean 1437st_finalize_texture(GLcontext *ctx, 1438 struct pipe_context *pipe, 1439 struct gl_texture_object *tObj, 1440 GLboolean *needFlush) 1441{ 1442 struct st_texture_object *stObj = st_texture_object(tObj); 1443 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1444 int comp_byte = 0; 1445 int cpp; 1446 GLuint face; 1447 struct st_texture_image *firstImage; 1448 1449 *needFlush = GL_FALSE; 1450 1451 /* We know/require this is true by now: 1452 */ 1453 assert(stObj->base._Complete); 1454 1455 /* What levels must the texture include at a minimum? 1456 */ 1457 calculate_first_last_level(stObj); 1458 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1459 1460 /* If both firstImage and stObj point to a texture which can contain 1461 * all active images, favour firstImage. Note that because of the 1462 * completeness requirement, we know that the image dimensions 1463 * will match. 1464 */ 1465 if (firstImage->pt && 1466 firstImage->pt != stObj->pt && 1467 firstImage->pt->last_level >= stObj->lastLevel) { 1468 1469 if (stObj->pt) 1470 pipe_texture_release(&stObj->pt); 1471 1472 pipe_texture_reference(&stObj->pt, firstImage->pt); 1473 } 1474 1475 if (firstImage->base.IsCompressed) { 1476 comp_byte = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1477 cpp = comp_byte; 1478 } 1479 else { 1480 cpp = firstImage->base.TexFormat->TexelBytes; 1481 } 1482 1483 /* If we already have a gallium texture, check that it matches the texture 1484 * object's format, target, size, num_levels, etc. 1485 */ 1486 if (stObj->pt) { 1487 const enum pipe_format fmt = 1488 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1489 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1490 stObj->pt->format != fmt || 1491 stObj->pt->last_level < stObj->lastLevel || 1492 stObj->pt->width[0] != firstImage->base.Width2 || 1493 stObj->pt->height[0] != firstImage->base.Height2 || 1494 stObj->pt->depth[0] != firstImage->base.Depth2 || 1495 stObj->pt->cpp != cpp || 1496 stObj->pt->compressed != firstImage->base.IsCompressed) { 1497 pipe_texture_release(&stObj->pt); 1498 } 1499 } 1500 1501 /* May need to create a new gallium texture: 1502 */ 1503 if (!stObj->pt) { 1504 stObj->pt = st_texture_create(ctx->st, 1505 gl_target_to_pipe(stObj->base.Target), 1506 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat), 1507 stObj->lastLevel, 1508 firstImage->base.Width2, 1509 firstImage->base.Height2, 1510 firstImage->base.Depth2, 1511 comp_byte, 1512 1513 ( PIPE_TEXTURE_USAGE_RENDER_TARGET | 1514 PIPE_TEXTURE_USAGE_SAMPLER )); 1515 1516 if (!stObj->pt) { 1517 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1518 return GL_FALSE; 1519 } 1520 } 1521 1522 /* Pull in any images not in the object's texture: 1523 */ 1524 for (face = 0; face < nr_faces; face++) { 1525 GLuint level; 1526 for (level = 0; level <= stObj->lastLevel; level++) { 1527 struct st_texture_image *stImage = 1528 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1529 1530 /* Need to import images in main memory or held in other textures. 1531 */ 1532 if (stImage && stObj->pt != stImage->pt) { 1533 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1534 *needFlush = GL_TRUE; 1535 } 1536 } 1537 } 1538 1539 return GL_TRUE; 1540} 1541 1542 1543 1544 1545void 1546st_init_texture_functions(struct dd_function_table *functions) 1547{ 1548 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1549 functions->TexImage1D = st_TexImage1D; 1550 functions->TexImage2D = st_TexImage2D; 1551 functions->TexImage3D = st_TexImage3D; 1552 functions->TexSubImage1D = st_TexSubImage1D; 1553 functions->TexSubImage2D = st_TexSubImage2D; 1554 functions->TexSubImage3D = st_TexSubImage3D; 1555 functions->CopyTexImage1D = st_CopyTexImage1D; 1556 functions->CopyTexImage2D = st_CopyTexImage2D; 1557 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1558 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1559 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1560 functions->GenerateMipmap = st_generate_mipmap; 1561 1562 functions->GetTexImage = st_GetTexImage; 1563 1564 /* compressed texture functions */ 1565 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1566 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1567 functions->CompressedTextureSize = _mesa_compressed_texture_size; 1568 1569 functions->NewTextureObject = st_NewTextureObject; 1570 functions->NewTextureImage = st_NewTextureImage; 1571 functions->DeleteTexture = st_DeleteTextureObject; 1572 functions->FreeTexImageData = st_FreeTextureImageData; 1573 functions->UpdateTexturePalette = 0; 1574 functions->IsTextureResident = st_IsTextureResident; 1575 1576 functions->TextureMemCpy = do_memcpy; 1577 1578 /* XXX Temporary until we can query pipe's texture sizes */ 1579 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1580} 1581