st_cb_texture.c revision a7427b0f7b2325b8dcc560d57cb894df25ebef93
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/mfeatures.h" 29#include "main/bufferobj.h" 30#if FEATURE_convolve 31#include "main/convolve.h" 32#endif 33#include "main/enums.h" 34#include "main/image.h" 35#include "main/imports.h" 36#include "main/macros.h" 37#include "main/mipmap.h" 38#include "main/pixel.h" 39#include "main/texcompress.h" 40#include "main/texformat.h" 41#include "main/texgetimage.h" 42#include "main/teximage.h" 43#include "main/texobj.h" 44#include "main/texstore.h" 45 46#include "state_tracker/st_context.h" 47#include "state_tracker/st_cb_fbo.h" 48#include "state_tracker/st_cb_texture.h" 49#include "state_tracker/st_format.h" 50#include "state_tracker/st_public.h" 51#include "state_tracker/st_texture.h" 52#include "state_tracker/st_gen_mipmap.h" 53#include "state_tracker/st_inlines.h" 54#include "state_tracker/st_atom.h" 55 56#include "pipe/p_context.h" 57#include "pipe/p_defines.h" 58#include "pipe/p_inlines.h" 59#include "util/u_tile.h" 60#include "util/u_blit.h" 61#include "util/u_surface.h" 62 63 64#define DBG if (0) printf 65 66 67static enum pipe_texture_target 68gl_target_to_pipe(GLenum target) 69{ 70 switch (target) { 71 case GL_TEXTURE_1D: 72 return PIPE_TEXTURE_1D; 73 74 case GL_TEXTURE_2D: 75 case GL_TEXTURE_RECTANGLE_NV: 76 return PIPE_TEXTURE_2D; 77 78 case GL_TEXTURE_3D: 79 return PIPE_TEXTURE_3D; 80 81 case GL_TEXTURE_CUBE_MAP_ARB: 82 return PIPE_TEXTURE_CUBE; 83 84 default: 85 assert(0); 86 return 0; 87 } 88} 89 90 91/** 92 * Return nominal bytes per texel for a compressed format, 0 for non-compressed 93 * format. 94 */ 95static GLuint 96compressed_num_bytes(GLuint mesaFormat) 97{ 98 switch(mesaFormat) { 99#if FEATURE_texture_fxt1 100 case MESA_FORMAT_RGB_FXT1: 101 case MESA_FORMAT_RGBA_FXT1: 102#endif 103#if FEATURE_texture_s3tc 104 case MESA_FORMAT_RGB_DXT1: 105 case MESA_FORMAT_RGBA_DXT1: 106 return 2; 107 case MESA_FORMAT_RGBA_DXT3: 108 case MESA_FORMAT_RGBA_DXT5: 109 return 4; 110#endif 111 default: 112 return 0; 113 } 114} 115 116 117static GLboolean 118is_compressed_mesa_format(const struct gl_texture_format *format) 119{ 120 switch (format->MesaFormat) { 121 case MESA_FORMAT_RGB_DXT1: 122 case MESA_FORMAT_RGBA_DXT1: 123 case MESA_FORMAT_RGBA_DXT3: 124 case MESA_FORMAT_RGBA_DXT5: 125 case MESA_FORMAT_SRGB_DXT1: 126 case MESA_FORMAT_SRGBA_DXT1: 127 case MESA_FORMAT_SRGBA_DXT3: 128 case MESA_FORMAT_SRGBA_DXT5: 129 return GL_TRUE; 130 default: 131 return GL_FALSE; 132 } 133} 134 135 136/** called via ctx->Driver.NewTextureImage() */ 137static struct gl_texture_image * 138st_NewTextureImage(GLcontext * ctx) 139{ 140 DBG("%s\n", __FUNCTION__); 141 (void) ctx; 142 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 143} 144 145 146/** called via ctx->Driver.NewTextureObject() */ 147static struct gl_texture_object * 148st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 149{ 150 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 151 152 DBG("%s\n", __FUNCTION__); 153 _mesa_initialize_texture_object(&obj->base, name, target); 154 155 return &obj->base; 156} 157 158/** called via ctx->Driver.DeleteTextureImage() */ 159static void 160st_DeleteTextureObject(GLcontext *ctx, 161 struct gl_texture_object *texObj) 162{ 163 struct st_texture_object *stObj = st_texture_object(texObj); 164 if (stObj->pt) 165 pipe_texture_reference(&stObj->pt, NULL); 166 167 _mesa_delete_texture_object(ctx, texObj); 168} 169 170 171/** called via ctx->Driver.FreeTexImageData() */ 172static void 173st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 174{ 175 struct st_texture_image *stImage = st_texture_image(texImage); 176 177 DBG("%s\n", __FUNCTION__); 178 179 if (stImage->pt) { 180 pipe_texture_reference(&stImage->pt, NULL); 181 } 182 183 if (texImage->Data) { 184 _mesa_align_free(texImage->Data); 185 texImage->Data = NULL; 186 } 187} 188 189 190/** 191 * From linux kernel i386 header files, copes with odd sizes better 192 * than COPY_DWORDS would: 193 * XXX Put this in src/mesa/main/imports.h ??? 194 */ 195#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) 196static INLINE void * 197__memcpy(void *to, const void *from, size_t n) 198{ 199 int d0, d1, d2; 200 __asm__ __volatile__("rep ; movsl\n\t" 201 "testb $2,%b4\n\t" 202 "je 1f\n\t" 203 "movsw\n" 204 "1:\ttestb $1,%b4\n\t" 205 "je 2f\n\t" 206 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 207 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 208 :"memory"); 209 return (to); 210} 211#else 212#define __memcpy(a,b,c) memcpy(a,b,c) 213#endif 214 215 216/** 217 * The system memcpy (at least on ubuntu 5.10) has problems copying 218 * to agp (writecombined) memory from a source which isn't 64-byte 219 * aligned - there is a 4x performance falloff. 220 * 221 * The x86 __memcpy is immune to this but is slightly slower 222 * (10%-ish) than the system memcpy. 223 * 224 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 225 * isn't much faster than x86_memcpy for agp copies. 226 * 227 * TODO: switch dynamically. 228 */ 229static void * 230do_memcpy(void *dest, const void *src, size_t n) 231{ 232 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { 233 return __memcpy(dest, src, n); 234 } 235 else 236 return memcpy(dest, src, n); 237} 238 239 240static INLINE unsigned 241logbase2(unsigned n) 242{ 243 unsigned log2 = 0; 244 while (n >>= 1) 245 ++log2; 246 return log2; 247} 248 249 250/** 251 * Return default texture usage bitmask for the given texture format. 252 */ 253static GLuint 254default_usage(enum pipe_format fmt) 255{ 256 GLuint usage = PIPE_TEXTURE_USAGE_SAMPLER; 257 if (pf_is_depth_stencil(fmt)) 258 usage |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL; 259 else 260 usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET; 261 return usage; 262} 263 264 265/** 266 * Allocate a pipe_texture object for the given st_texture_object using 267 * the given st_texture_image to guess the mipmap size/levels. 268 * 269 * [comments...] 270 * Otherwise, store it in memory if (Border != 0) or (any dimension == 271 * 1). 272 * 273 * Otherwise, if max_level >= level >= min_level, create texture with 274 * space for images from min_level down to max_level. 275 * 276 * Otherwise, create texture with space for images from (level 0)..(1x1). 277 * Consider pruning this texture at a validation if the saving is worth it. 278 */ 279static void 280guess_and_alloc_texture(struct st_context *st, 281 struct st_texture_object *stObj, 282 const struct st_texture_image *stImage) 283{ 284 GLuint firstLevel; 285 GLuint lastLevel; 286 GLuint width = stImage->base.Width2; /* size w/out border */ 287 GLuint height = stImage->base.Height2; 288 GLuint depth = stImage->base.Depth2; 289 GLuint i, usage; 290 enum pipe_format fmt; 291 292 DBG("%s\n", __FUNCTION__); 293 294 assert(!stObj->pt); 295 296 if (stObj->pt && 297 (GLint) stImage->level > stObj->base.BaseLevel && 298 (stImage->base.Width == 1 || 299 (stObj->base.Target != GL_TEXTURE_1D && 300 stImage->base.Height == 1) || 301 (stObj->base.Target == GL_TEXTURE_3D && 302 stImage->base.Depth == 1))) 303 return; 304 305 /* If this image disrespects BaseLevel, allocate from level zero. 306 * Usually BaseLevel == 0, so it's unlikely to happen. 307 */ 308 if ((GLint) stImage->level < stObj->base.BaseLevel) 309 firstLevel = 0; 310 else 311 firstLevel = stObj->base.BaseLevel; 312 313 314 /* Figure out image dimensions at start level. 315 */ 316 for (i = stImage->level; i > firstLevel; i--) { 317 if (width != 1) 318 width <<= 1; 319 if (height != 1) 320 height <<= 1; 321 if (depth != 1) 322 depth <<= 1; 323 } 324 325 if (width == 0 || height == 0 || depth == 0) { 326 /* no texture needed */ 327 return; 328 } 329 330 /* Guess a reasonable value for lastLevel. This is probably going 331 * to be wrong fairly often and might mean that we have to look at 332 * resizable buffers, or require that buffers implement lazy 333 * pagetable arrangements. 334 */ 335 if ((stObj->base.MinFilter == GL_NEAREST || 336 stObj->base.MinFilter == GL_LINEAR || 337 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 338 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 339 stImage->level == firstLevel) { 340 lastLevel = firstLevel; 341 } 342 else { 343 GLuint l2width = logbase2(width); 344 GLuint l2height = logbase2(height); 345 GLuint l2depth = logbase2(depth); 346 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 347 } 348 349 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat); 350 351 usage = default_usage(fmt); 352 353 stObj->pt = st_texture_create(st, 354 gl_target_to_pipe(stObj->base.Target), 355 fmt, 356 lastLevel, 357 width, 358 height, 359 depth, 360 usage); 361 362 DBG("%s - success\n", __FUNCTION__); 363} 364 365 366/** 367 * Adjust pixel unpack params and image dimensions to strip off the 368 * texture border. 369 * Gallium doesn't support texture borders. They've seldem been used 370 * and seldom been implemented correctly anyway. 371 * \param unpackNew returns the new pixel unpack parameters 372 */ 373static void 374strip_texture_border(GLint border, 375 GLint *width, GLint *height, GLint *depth, 376 const struct gl_pixelstore_attrib *unpack, 377 struct gl_pixelstore_attrib *unpackNew) 378{ 379 assert(border > 0); /* sanity check */ 380 381 *unpackNew = *unpack; 382 383 if (unpackNew->RowLength == 0) 384 unpackNew->RowLength = *width; 385 386 if (depth && unpackNew->ImageHeight == 0) 387 unpackNew->ImageHeight = *height; 388 389 unpackNew->SkipPixels += border; 390 if (height) 391 unpackNew->SkipRows += border; 392 if (depth) 393 unpackNew->SkipImages += border; 394 395 assert(*width >= 3); 396 *width = *width - 2 * border; 397 if (height && *height >= 3) 398 *height = *height - 2 * border; 399 if (depth && *depth >= 3) 400 *depth = *depth - 2 * border; 401} 402 403 404/** 405 * Try to do texture compression via rendering. If the Gallium driver 406 * can render into a compressed surface this will allow us to do texture 407 * compression. 408 * \return GL_TRUE for success, GL_FALSE for failure 409 */ 410static GLboolean 411compress_with_blit(GLcontext * ctx, 412 GLenum target, GLint level, 413 GLint xoffset, GLint yoffset, GLint zoffset, 414 GLint width, GLint height, GLint depth, 415 GLenum format, GLenum type, const void *pixels, 416 const struct gl_pixelstore_attrib *unpack, 417 struct gl_texture_image *texImage) 418{ 419 const GLuint dstImageOffsets[1] = {0}; 420 struct st_texture_image *stImage = st_texture_image(texImage); 421 struct pipe_screen *screen = ctx->st->pipe->screen; 422 const struct gl_texture_format *mesa_format; 423 struct pipe_texture templ; 424 struct pipe_texture *src_tex; 425 struct pipe_surface *dst_surface; 426 struct pipe_transfer *tex_xfer; 427 void *map; 428 429 430 if (!stImage->pt) { 431 /* XXX: Can this happen? Should we assert? */ 432 return GL_FALSE; 433 } 434 435 /* get destination surface (in the compressed texture) */ 436 dst_surface = screen->get_tex_surface(screen, stImage->pt, 437 stImage->face, stImage->level, 0, 438 PIPE_BUFFER_USAGE_GPU_WRITE); 439 if (!dst_surface) { 440 /* can't render into this format (or other problem) */ 441 return GL_FALSE; 442 } 443 444 /* Choose format for the temporary RGBA texture image. 445 */ 446 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); 447 assert(mesa_format); 448 if (!mesa_format) 449 return GL_FALSE; 450 451 /* Create the temporary source texture 452 */ 453 memset(&templ, 0, sizeof(templ)); 454 templ.target = PIPE_TEXTURE_2D; 455 templ.format = st_mesa_format_to_pipe_format(mesa_format->MesaFormat); 456 pf_get_block(templ.format, &templ.block); 457 templ.width[0] = width; 458 templ.height[0] = height; 459 templ.depth[0] = 1; 460 templ.last_level = 0; 461 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 462 src_tex = screen->texture_create(screen, &templ); 463 464 if (!src_tex) 465 return GL_FALSE; 466 467 /* Put user's tex data into the temporary texture 468 */ 469 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex, 470 0, 0, 0, /* face, level are zero */ 471 PIPE_TRANSFER_WRITE, 472 0, 0, width, height); /* x, y, w, h */ 473 map = screen->transfer_map(screen, tex_xfer); 474 475 mesa_format->StoreImage(ctx, 2, GL_RGBA, mesa_format, 476 map, /* dest ptr */ 477 0, 0, 0, /* dest x/y/z offset */ 478 tex_xfer->stride, /* dest row stride (bytes) */ 479 dstImageOffsets, /* image offsets (for 3D only) */ 480 width, height, 1, /* size */ 481 format, type, /* source format/type */ 482 pixels, /* source data */ 483 unpack); /* source data packing */ 484 485 screen->transfer_unmap(screen, tex_xfer); 486 screen->tex_transfer_destroy(tex_xfer); 487 488 /* copy / compress image */ 489 util_blit_pixels_tex(ctx->st->blit, 490 src_tex, /* pipe_texture (src) */ 491 0, 0, /* src x0, y0 */ 492 width, height, /* src x1, y1 */ 493 dst_surface, /* pipe_surface (dst) */ 494 xoffset, yoffset, /* dst x0, y0 */ 495 xoffset + width, /* dst x1 */ 496 yoffset + height, /* dst y1 */ 497 0.0, /* z */ 498 PIPE_TEX_MIPFILTER_NEAREST); 499 500 pipe_surface_reference(&dst_surface, NULL); 501 pipe_texture_reference(&src_tex, NULL); 502 503 return GL_TRUE; 504} 505 506 507/** 508 * Do glTexImage1/2/3D(). 509 */ 510static void 511st_TexImage(GLcontext * ctx, 512 GLint dims, 513 GLenum target, GLint level, 514 GLint internalFormat, 515 GLint width, GLint height, GLint depth, 516 GLint border, 517 GLenum format, GLenum type, const void *pixels, 518 const struct gl_pixelstore_attrib *unpack, 519 struct gl_texture_object *texObj, 520 struct gl_texture_image *texImage, 521 GLsizei imageSize, GLboolean compressed_src) 522{ 523 struct pipe_screen *screen = ctx->st->pipe->screen; 524 struct st_texture_object *stObj = st_texture_object(texObj); 525 struct st_texture_image *stImage = st_texture_image(texImage); 526 GLint postConvWidth, postConvHeight; 527 GLint texelBytes, sizeInBytes; 528 GLuint dstRowStride; 529 struct gl_pixelstore_attrib unpackNB; 530 enum pipe_transfer_usage transfer_usage; 531 532 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 533 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 534 535 /* gallium does not support texture borders, strip it off */ 536 if (border) { 537 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 538 unpack = &unpackNB; 539 texImage->Width = width; 540 texImage->Height = height; 541 texImage->Depth = depth; 542 texImage->Border = 0; 543 border = 0; 544 } 545 546 postConvWidth = width; 547 postConvHeight = height; 548 549 stImage->face = _mesa_tex_target_to_face(target); 550 stImage->level = level; 551 552#if FEATURE_convolve 553 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 554 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 555 &postConvHeight); 556 } 557#endif 558 559 /* choose the texture format */ 560 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 561 format, type); 562 563 _mesa_set_fetch_functions(texImage, dims); 564 565 if (texImage->TexFormat->TexelBytes == 0) { 566 /* must be a compressed format */ 567 texelBytes = 0; 568 texImage->IsCompressed = GL_TRUE; 569 texImage->CompressedSize = 570 ctx->Driver.CompressedTextureSize(ctx, texImage->Width, 571 texImage->Height, texImage->Depth, 572 texImage->TexFormat->MesaFormat); 573 } 574 else { 575 texelBytes = texImage->TexFormat->TexelBytes; 576 577 /* Minimum pitch of 32 bytes */ 578 if (postConvWidth * texelBytes < 32) { 579 postConvWidth = 32 / texelBytes; 580 texImage->RowStride = postConvWidth; 581 } 582 583 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 584 /*assert(texImage->RowStride == postConvWidth);*/ 585 } 586 587 /* Release the reference to a potentially orphaned buffer. 588 * Release any old malloced memory. 589 */ 590 if (stImage->pt) { 591 pipe_texture_reference(&stImage->pt, NULL); 592 assert(!texImage->Data); 593 } 594 else if (texImage->Data) { 595 _mesa_align_free(texImage->Data); 596 } 597 598 if (width == 0 || height == 0 || depth == 0) { 599 /* stop after freeing old image */ 600 return; 601 } 602 603 /* If this is the only mipmap level in the texture, could call 604 * bmBufferData with NULL data to free the old block and avoid 605 * waiting on any outstanding fences. 606 */ 607 if (stObj->pt) { 608 if (stObj->teximage_realloc || 609 level > (GLint) stObj->pt->last_level || 610 (stObj->pt->last_level == level && 611 stObj->pt->target != PIPE_TEXTURE_CUBE && 612 !st_texture_match_image(stObj->pt, &stImage->base, 613 stImage->face, stImage->level))) { 614 DBG("release it\n"); 615 pipe_texture_reference(&stObj->pt, NULL); 616 assert(!stObj->pt); 617 stObj->teximage_realloc = FALSE; 618 } 619 } 620 621 if (!stObj->pt) { 622 guess_and_alloc_texture(ctx->st, stObj, stImage); 623 if (!stObj->pt) { 624 /* Probably out of memory. 625 * Try flushing any pending rendering, then retry. 626 */ 627 st_finish(ctx->st); 628 guess_and_alloc_texture(ctx->st, stObj, stImage); 629 if (!stObj->pt) { 630 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 631 return; 632 } 633 } 634 } 635 636 assert(!stImage->pt); 637 638 if (stObj->pt && 639 st_texture_match_image(stObj->pt, &stImage->base, 640 stImage->face, stImage->level)) { 641 642 pipe_texture_reference(&stImage->pt, stObj->pt); 643 assert(stImage->pt); 644 } 645 646 if (!stImage->pt) 647 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 648 649 /* st_CopyTexImage calls this function with pixels == NULL, with 650 * the expectation that the texture will be set up but nothing 651 * more will be done. This is where those calls return: 652 */ 653 if (compressed_src) { 654 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 655 unpack, 656 "glCompressedTexImage"); 657 } 658 else { 659 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 660 format, type, 661 pixels, unpack, "glTexImage"); 662 } 663 if (!pixels) 664 return; 665 666 /* See if we can do texture compression with a blit/render. 667 */ 668 if (!compressed_src && 669 !ctx->Mesa_DXTn && 670 is_compressed_mesa_format(texImage->TexFormat) && 671 screen->is_format_supported(screen, 672 stImage->pt->format, 673 stImage->pt->target, 674 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 675 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 676 format, type, pixels, unpack, texImage)) { 677 goto done; 678 } 679 } 680 681 if (stImage->pt) { 682 if (format == GL_DEPTH_COMPONENT && 683 pf_is_depth_and_stencil(stImage->pt->format)) 684 transfer_usage = PIPE_TRANSFER_READ_WRITE; 685 else 686 transfer_usage = PIPE_TRANSFER_WRITE; 687 688 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 689 transfer_usage, 0, 0, 690 stImage->base.Width, 691 stImage->base.Height); 692 if(stImage->transfer) 693 dstRowStride = stImage->transfer->stride; 694 } 695 else { 696 /* Allocate regular memory and store the image there temporarily. */ 697 if (texImage->IsCompressed) { 698 sizeInBytes = texImage->CompressedSize; 699 dstRowStride = 700 _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width); 701 assert(dims != 3); 702 } 703 else { 704 dstRowStride = postConvWidth * texelBytes; 705 sizeInBytes = depth * dstRowStride * postConvHeight; 706 } 707 708 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 709 } 710 711 if (!texImage->Data) { 712 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 713 return; 714 } 715 716 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 717 width, height, depth, width * texelBytes, dstRowStride); 718 719 /* Copy data. Would like to know when it's ok for us to eg. use 720 * the blitter to copy. Or, use the hardware to do the format 721 * conversion and copy: 722 */ 723 if (compressed_src) { 724 memcpy(texImage->Data, pixels, imageSize); 725 } 726 else { 727 const GLuint srcImageStride = 728 _mesa_image_image_stride(unpack, width, height, format, type); 729 GLint i; 730 const GLubyte *src = (const GLubyte *) pixels; 731 732 for (i = 0; i < depth; i++) { 733 if (!texImage->TexFormat->StoreImage(ctx, dims, 734 texImage->_BaseFormat, 735 texImage->TexFormat, 736 texImage->Data, 737 0, 0, 0, /* dstX/Y/Zoffset */ 738 dstRowStride, 739 texImage->ImageOffsets, 740 width, height, 1, 741 format, type, src, unpack)) { 742 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 743 } 744 745 if (stImage->pt && i + 1 < depth) { 746 /* unmap this slice */ 747 st_texture_image_unmap(ctx->st, stImage); 748 /* map next slice of 3D texture */ 749 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 750 transfer_usage, 0, 0, 751 stImage->base.Width, 752 stImage->base.Height); 753 src += srcImageStride; 754 } 755 } 756 } 757 758 _mesa_unmap_teximage_pbo(ctx, unpack); 759 760done: 761 if (stImage->pt && texImage->Data) { 762 st_texture_image_unmap(ctx->st, stImage); 763 texImage->Data = NULL; 764 } 765 766 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 767 ctx->Driver.GenerateMipmap(ctx, target, texObj); 768 } 769} 770 771 772static void 773st_TexImage3D(GLcontext * ctx, 774 GLenum target, GLint level, 775 GLint internalFormat, 776 GLint width, GLint height, GLint depth, 777 GLint border, 778 GLenum format, GLenum type, const void *pixels, 779 const struct gl_pixelstore_attrib *unpack, 780 struct gl_texture_object *texObj, 781 struct gl_texture_image *texImage) 782{ 783 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 784 border, format, type, pixels, unpack, texObj, texImage, 785 0, GL_FALSE); 786} 787 788 789static void 790st_TexImage2D(GLcontext * ctx, 791 GLenum target, GLint level, 792 GLint internalFormat, 793 GLint width, GLint height, GLint border, 794 GLenum format, GLenum type, const void *pixels, 795 const struct gl_pixelstore_attrib *unpack, 796 struct gl_texture_object *texObj, 797 struct gl_texture_image *texImage) 798{ 799 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 800 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 801} 802 803 804static void 805st_TexImage1D(GLcontext * ctx, 806 GLenum target, GLint level, 807 GLint internalFormat, 808 GLint width, GLint border, 809 GLenum format, GLenum type, const void *pixels, 810 const struct gl_pixelstore_attrib *unpack, 811 struct gl_texture_object *texObj, 812 struct gl_texture_image *texImage) 813{ 814 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 815 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 816} 817 818 819static void 820st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 821 GLint internalFormat, 822 GLint width, GLint height, GLint border, 823 GLsizei imageSize, const GLvoid *data, 824 struct gl_texture_object *texObj, 825 struct gl_texture_image *texImage) 826{ 827 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 828 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 829} 830 831 832 833/** 834 * glGetTexImage() helper: decompress a compressed texture by rendering 835 * a textured quad. Store the results in the user's buffer. 836 */ 837static void 838decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 839 GLenum format, GLenum type, GLvoid *pixels, 840 struct gl_texture_object *texObj, 841 struct gl_texture_image *texImage) 842{ 843 struct pipe_screen *screen = ctx->st->pipe->screen; 844 struct st_texture_image *stImage = st_texture_image(texImage); 845 const GLuint width = texImage->Width; 846 const GLuint height = texImage->Height; 847 struct pipe_surface *dst_surface; 848 struct pipe_texture *dst_texture; 849 struct pipe_transfer *tex_xfer; 850 851 /* create temp / dest surface */ 852 if (!util_create_rgba_surface(screen, width, height, 853 &dst_texture, &dst_surface)) { 854 _mesa_problem(ctx, "util_create_rgba_surface() failed " 855 "in decompress_with_blit()"); 856 return; 857 } 858 859 /* blit/render/decompress */ 860 util_blit_pixels_tex(ctx->st->blit, 861 stImage->pt, /* pipe_texture (src) */ 862 0, 0, /* src x0, y0 */ 863 width, height, /* src x1, y1 */ 864 dst_surface, /* pipe_surface (dst) */ 865 0, 0, /* dst x0, y0 */ 866 width, height, /* dst x1, y1 */ 867 0.0, /* z */ 868 PIPE_TEX_MIPFILTER_NEAREST); 869 870 /* map the dst_surface so we can read from it */ 871 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 872 dst_texture, 0, 0, 0, 873 PIPE_TRANSFER_READ, 874 0, 0, width, height); 875 876 pixels = _mesa_map_readpix_pbo(ctx, &ctx->Pack, pixels); 877 878 /* copy/pack data into user buffer */ 879 if (st_equal_formats(stImage->pt->format, format, type)) { 880 /* memcpy */ 881 const uint bytesPerRow = width * pf_get_size(stImage->pt->format); 882 ubyte *map = screen->transfer_map(screen, tex_xfer); 883 GLuint row; 884 for (row = 0; row < height; row++) { 885 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 886 height, format, type, row, 0); 887 memcpy(dest, map, bytesPerRow); 888 map += tex_xfer->stride; 889 } 890 screen->transfer_unmap(screen, tex_xfer); 891 } 892 else { 893 /* format translation via floats */ 894 GLuint row; 895 for (row = 0; row < height; row++) { 896 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 897 GLfloat rgba[4 * MAX_WIDTH]; 898 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 899 height, format, type, row, 0); 900 901 /* get float[4] rgba row from surface */ 902 pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba); 903 904 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 905 type, dest, &ctx->Pack, transferOps); 906 } 907 } 908 909 _mesa_unmap_readpix_pbo(ctx, &ctx->Pack); 910 911 /* destroy the temp / dest surface */ 912 util_destroy_rgba_surface(dst_texture, dst_surface); 913} 914 915 916 917/** 918 * Need to map texture image into memory before copying image data, 919 * then unmap it. 920 */ 921static void 922st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 923 GLenum format, GLenum type, GLvoid * pixels, 924 struct gl_texture_object *texObj, 925 struct gl_texture_image *texImage, GLboolean compressed_dst) 926{ 927 struct st_texture_image *stImage = st_texture_image(texImage); 928 const GLuint dstImageStride = 929 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 930 format, type); 931 GLuint depth, i; 932 GLubyte *dest; 933 934 if (stImage->pt && 935 pf_is_compressed(stImage->pt->format) && 936 !compressed_dst) { 937 /* Need to decompress the texture. 938 * We'll do this by rendering a textured quad. 939 * Note that we only expect RGBA formats (no Z/depth formats). 940 */ 941 decompress_with_blit(ctx, target, level, format, type, pixels, 942 texObj, texImage); 943 return; 944 } 945 946 /* Map */ 947 if (stImage->pt) { 948 /* Image is stored in hardware format in a buffer managed by the 949 * kernel. Need to explicitly map and unmap it. 950 */ 951 unsigned face = _mesa_tex_target_to_face(target); 952 953 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 954 PIPE_TRANSFER_READ); 955 956 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 957 PIPE_TRANSFER_READ, 0, 0, 958 stImage->base.Width, 959 stImage->base.Height); 960 texImage->RowStride = stImage->transfer->stride / stImage->pt->block.size; 961 } 962 else { 963 /* Otherwise, the image should actually be stored in 964 * texImage->Data. This is pretty confusing for 965 * everybody, I'd much prefer to separate the two functions of 966 * texImage->Data - storage for texture images in main memory 967 * and access (ie mappings) of images. In other words, we'd 968 * create a new texImage->Map field and leave Data simply for 969 * storage. 970 */ 971 assert(texImage->Data); 972 } 973 974 depth = texImage->Depth; 975 texImage->Depth = 1; 976 977 dest = (GLubyte *) pixels; 978 979 for (i = 0; i < depth; i++) { 980 if (compressed_dst) { 981 _mesa_get_compressed_teximage(ctx, target, level, dest, 982 texObj, texImage); 983 } 984 else { 985 _mesa_get_teximage(ctx, target, level, format, type, dest, 986 texObj, texImage); 987 } 988 989 if (stImage->pt && i + 1 < depth) { 990 /* unmap this slice */ 991 st_texture_image_unmap(ctx->st, stImage); 992 /* map next slice of 3D texture */ 993 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 994 PIPE_TRANSFER_READ, 0, 0, 995 stImage->base.Width, 996 stImage->base.Height); 997 dest += dstImageStride; 998 } 999 } 1000 1001 texImage->Depth = depth; 1002 1003 /* Unmap */ 1004 if (stImage->pt) { 1005 st_texture_image_unmap(ctx->st, stImage); 1006 texImage->Data = NULL; 1007 } 1008} 1009 1010 1011static void 1012st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 1013 GLenum format, GLenum type, GLvoid * pixels, 1014 struct gl_texture_object *texObj, 1015 struct gl_texture_image *texImage) 1016{ 1017 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 1018 GL_FALSE); 1019} 1020 1021 1022static void 1023st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 1024 GLvoid *pixels, 1025 struct gl_texture_object *texObj, 1026 struct gl_texture_image *texImage) 1027{ 1028 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1029 GL_TRUE); 1030} 1031 1032 1033 1034static void 1035st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1036 GLint xoffset, GLint yoffset, GLint zoffset, 1037 GLint width, GLint height, GLint depth, 1038 GLenum format, GLenum type, const void *pixels, 1039 const struct gl_pixelstore_attrib *packing, 1040 struct gl_texture_object *texObj, 1041 struct gl_texture_image *texImage) 1042{ 1043 struct pipe_screen *screen = ctx->st->pipe->screen; 1044 struct st_texture_image *stImage = st_texture_image(texImage); 1045 GLuint dstRowStride; 1046 const GLuint srcImageStride = 1047 _mesa_image_image_stride(packing, width, height, format, type); 1048 GLint i; 1049 const GLubyte *src; 1050 /* init to silence warning only: */ 1051 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1052 1053 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1054 _mesa_lookup_enum_by_nr(target), 1055 level, xoffset, yoffset, width, height); 1056 1057 pixels = 1058 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1059 type, pixels, packing, "glTexSubImage2D"); 1060 if (!pixels) 1061 return; 1062 1063 /* See if we can do texture compression with a blit/render. 1064 */ 1065 if (!ctx->Mesa_DXTn && 1066 is_compressed_mesa_format(texImage->TexFormat) && 1067 screen->is_format_supported(screen, 1068 stImage->pt->format, 1069 stImage->pt->target, 1070 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1071 if (compress_with_blit(ctx, target, level, 1072 xoffset, yoffset, zoffset, 1073 width, height, depth, 1074 format, type, pixels, packing, texImage)) { 1075 goto done; 1076 } 1077 } 1078 1079 /* Map buffer if necessary. Need to lock to prevent other contexts 1080 * from uploading the buffer under us. 1081 */ 1082 if (stImage->pt) { 1083 unsigned face = _mesa_tex_target_to_face(target); 1084 1085 if (format == GL_DEPTH_COMPONENT && 1086 pf_is_depth_and_stencil(stImage->pt->format)) 1087 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1088 else 1089 transfer_usage = PIPE_TRANSFER_WRITE; 1090 1091 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1092 transfer_usage); 1093 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1094 transfer_usage, 1095 xoffset, yoffset, 1096 width, height); 1097 } 1098 1099 if (!texImage->Data) { 1100 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1101 return; 1102 } 1103 1104 src = (const GLubyte *) pixels; 1105 dstRowStride = stImage->transfer->stride; 1106 1107 for (i = 0; i < depth; i++) { 1108 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 1109 texImage->TexFormat, 1110 texImage->Data, 1111 0, 0, 0, 1112 dstRowStride, 1113 texImage->ImageOffsets, 1114 width, height, 1, 1115 format, type, src, packing)) { 1116 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1117 } 1118 1119 if (stImage->pt && i + 1 < depth) { 1120 /* unmap this slice */ 1121 st_texture_image_unmap(ctx->st, stImage); 1122 /* map next slice of 3D texture */ 1123 texImage->Data = st_texture_image_map(ctx->st, stImage, 1124 zoffset + i + 1, 1125 transfer_usage, 1126 xoffset, yoffset, 1127 width, height); 1128 src += srcImageStride; 1129 } 1130 } 1131 1132 _mesa_unmap_teximage_pbo(ctx, packing); 1133 1134done: 1135 if (stImage->pt) { 1136 st_texture_image_unmap(ctx->st, stImage); 1137 texImage->Data = NULL; 1138 } 1139 1140 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1141 ctx->Driver.GenerateMipmap(ctx, target, texObj); 1142 } 1143} 1144 1145 1146 1147static void 1148st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1149 GLint xoffset, GLint yoffset, GLint zoffset, 1150 GLsizei width, GLsizei height, GLsizei depth, 1151 GLenum format, GLenum type, const GLvoid *pixels, 1152 const struct gl_pixelstore_attrib *packing, 1153 struct gl_texture_object *texObj, 1154 struct gl_texture_image *texImage) 1155{ 1156 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1157 width, height, depth, format, type, 1158 pixels, packing, texObj, texImage); 1159} 1160 1161 1162static void 1163st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1164 GLint xoffset, GLint yoffset, 1165 GLsizei width, GLsizei height, 1166 GLenum format, GLenum type, const GLvoid * pixels, 1167 const struct gl_pixelstore_attrib *packing, 1168 struct gl_texture_object *texObj, 1169 struct gl_texture_image *texImage) 1170{ 1171 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1172 width, height, 1, format, type, 1173 pixels, packing, texObj, texImage); 1174} 1175 1176 1177static void 1178st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1179 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1180 const GLvoid * pixels, 1181 const struct gl_pixelstore_attrib *packing, 1182 struct gl_texture_object *texObj, 1183 struct gl_texture_image *texImage) 1184{ 1185 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1186 format, type, pixels, packing, texObj, texImage); 1187} 1188 1189 1190static void 1191st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1192 GLint xoffset, GLsizei width, 1193 GLenum format, 1194 GLsizei imageSize, const GLvoid *data, 1195 struct gl_texture_object *texObj, 1196 struct gl_texture_image *texImage) 1197{ 1198 assert(0); 1199} 1200 1201 1202static void 1203st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1204 GLint xoffset, GLint yoffset, 1205 GLsizei width, GLint height, 1206 GLenum format, 1207 GLsizei imageSize, const GLvoid *data, 1208 struct gl_texture_object *texObj, 1209 struct gl_texture_image *texImage) 1210{ 1211 struct st_texture_image *stImage = st_texture_image(texImage); 1212 struct pipe_format_block block; 1213 int srcBlockStride; 1214 int dstBlockStride; 1215 int y; 1216 1217 if (stImage->pt) { 1218 unsigned face = _mesa_tex_target_to_face(target); 1219 1220 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1221 PIPE_TRANSFER_WRITE); 1222 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1223 PIPE_TRANSFER_WRITE, 1224 xoffset, yoffset, 1225 width, height); 1226 1227 block = stImage->pt->block; 1228 srcBlockStride = pf_get_stride(&block, width); 1229 dstBlockStride = stImage->transfer->stride; 1230 } else { 1231 assert(stImage->pt); 1232 /* TODO find good values for block and strides */ 1233 /* TODO also adjust texImage->data for yoffset/xoffset */ 1234 return; 1235 } 1236 1237 if (!texImage->Data) { 1238 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1239 return; 1240 } 1241 1242 assert(xoffset % block.width == 0); 1243 assert(yoffset % block.height == 0); 1244 assert(width % block.width == 0); 1245 assert(height % block.height == 0); 1246 1247 for (y = 0; y < height; y += block.height) { 1248 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1249 const char *src = (const char*)data + srcBlockStride * pf_get_nblocksy(&block, y); 1250 char *dst = (char*)texImage->Data + dstBlockStride * pf_get_nblocksy(&block, y); 1251 memcpy(dst, src, pf_get_stride(&block, width)); 1252 } 1253 1254 if (stImage->pt) { 1255 st_texture_image_unmap(ctx->st, stImage); 1256 texImage->Data = NULL; 1257 } 1258} 1259 1260 1261static void 1262st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1263 GLint xoffset, GLint yoffset, GLint zoffset, 1264 GLsizei width, GLint height, GLint depth, 1265 GLenum format, 1266 GLsizei imageSize, const GLvoid *data, 1267 struct gl_texture_object *texObj, 1268 struct gl_texture_image *texImage) 1269{ 1270 assert(0); 1271} 1272 1273 1274 1275/** 1276 * Do a CopyTexSubImage operation using a read transfer from the source, 1277 * a write transfer to the destination and get_tile()/put_tile() to access 1278 * the pixels/texels. 1279 * 1280 * Note: srcY=0=TOP of renderbuffer 1281 */ 1282static void 1283fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1284 struct st_renderbuffer *strb, 1285 struct st_texture_image *stImage, 1286 GLenum baseFormat, 1287 GLint destX, GLint destY, GLint destZ, 1288 GLint srcX, GLint srcY, 1289 GLsizei width, GLsizei height) 1290{ 1291 struct pipe_context *pipe = ctx->st->pipe; 1292 struct pipe_screen *screen = pipe->screen; 1293 struct pipe_transfer *src_trans; 1294 GLvoid *texDest; 1295 enum pipe_transfer_usage transfer_usage; 1296 1297 assert(width <= MAX_WIDTH); 1298 1299 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1300 srcY = strb->Base.Height - srcY - height; 1301 } 1302 1303 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1304 strb->texture, 1305 0, 0, 0, 1306 PIPE_TRANSFER_READ, 1307 srcX, srcY, 1308 width, height); 1309 1310 if (baseFormat == GL_DEPTH_COMPONENT && 1311 pf_is_depth_and_stencil(stImage->pt->format)) 1312 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1313 else 1314 transfer_usage = PIPE_TRANSFER_WRITE; 1315 1316 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1317 transfer_usage); 1318 1319 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1320 destX, destY, width, height); 1321 1322 if (baseFormat == GL_DEPTH_COMPONENT || 1323 baseFormat == GL_DEPTH24_STENCIL8) { 1324 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1325 ctx->Pixel.DepthBias != 0.0F); 1326 GLint row, yStep; 1327 1328 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1329 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1330 srcY = height - 1; 1331 yStep = -1; 1332 } 1333 else { 1334 srcY = 0; 1335 yStep = 1; 1336 } 1337 1338 /* To avoid a large temp memory allocation, do copy row by row */ 1339 for (row = 0; row < height; row++, srcY += yStep) { 1340 uint data[MAX_WIDTH]; 1341 pipe_get_tile_z(src_trans, 0, srcY, width, 1, data); 1342 if (scaleOrBias) { 1343 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1344 } 1345 pipe_put_tile_z(stImage->transfer, 0, row, width, 1, data); 1346 } 1347 } 1348 else { 1349 /* RGBA format */ 1350 GLfloat *tempSrc = 1351 (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); 1352 1353 if (tempSrc && texDest) { 1354 const GLint dims = 2; 1355 const GLint dstRowStride = stImage->transfer->stride; 1356 struct gl_texture_image *texImage = &stImage->base; 1357 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1358 1359 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1360 unpack.Invert = GL_TRUE; 1361 } 1362 1363 /* get float/RGBA image from framebuffer */ 1364 /* XXX this usually involves a lot of int/float conversion. 1365 * try to avoid that someday. 1366 */ 1367 pipe_get_tile_rgba(src_trans, 0, 0, width, height, tempSrc); 1368 1369 /* Store into texture memory. 1370 * Note that this does some special things such as pixel transfer 1371 * ops and format conversion. In particular, if the dest tex format 1372 * is actually RGBA but the user created the texture as GL_RGB we 1373 * need to fill-in/override the alpha channel with 1.0. 1374 */ 1375 texImage->TexFormat->StoreImage(ctx, dims, 1376 texImage->_BaseFormat, 1377 texImage->TexFormat, 1378 texDest, 1379 0, 0, 0, 1380 dstRowStride, 1381 texImage->ImageOffsets, 1382 width, height, 1, 1383 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1384 &unpack); 1385 } 1386 else { 1387 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1388 } 1389 1390 if (tempSrc) 1391 _mesa_free(tempSrc); 1392 } 1393 1394 st_texture_image_unmap(ctx->st, stImage); 1395 screen->tex_transfer_destroy(src_trans); 1396} 1397 1398 1399/** 1400 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1401 * Note that the region to copy has already been clipped so we know we 1402 * won't read from outside the source renderbuffer's bounds. 1403 * 1404 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1405 */ 1406static void 1407st_copy_texsubimage(GLcontext *ctx, 1408 GLenum target, GLint level, 1409 GLint destX, GLint destY, GLint destZ, 1410 GLint srcX, GLint srcY, 1411 GLsizei width, GLsizei height) 1412{ 1413 struct gl_texture_unit *texUnit = 1414 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1415 struct gl_texture_object *texObj = 1416 _mesa_select_tex_object(ctx, texUnit, target); 1417 struct gl_texture_image *texImage = 1418 _mesa_select_tex_image(ctx, texObj, target, level); 1419 struct st_texture_image *stImage = st_texture_image(texImage); 1420 const GLenum texBaseFormat = texImage->InternalFormat; 1421 struct gl_framebuffer *fb = ctx->ReadBuffer; 1422 struct st_renderbuffer *strb; 1423 struct pipe_context *pipe = ctx->st->pipe; 1424 struct pipe_screen *screen = pipe->screen; 1425 enum pipe_format dest_format, src_format; 1426 GLboolean use_fallback = GL_TRUE; 1427 GLboolean matching_base_formats; 1428 1429 /* any rendering in progress must flushed before we grab the fb image */ 1430 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1431 1432 /* make sure finalize_textures has been called? 1433 */ 1434 if (0) st_validate_state(ctx->st); 1435 1436 /* determine if copying depth or color data */ 1437 if (texBaseFormat == GL_DEPTH_COMPONENT || 1438 texBaseFormat == GL_DEPTH24_STENCIL8) { 1439 strb = st_renderbuffer(fb->_DepthBuffer); 1440 } 1441 else if (texBaseFormat == GL_DEPTH_STENCIL_EXT) { 1442 strb = st_renderbuffer(fb->_StencilBuffer); 1443 } 1444 else { 1445 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1446 strb = st_renderbuffer(fb->_ColorReadBuffer); 1447 } 1448 1449 if (!strb || !strb->surface || !stImage->pt) { 1450 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1451 return; 1452 } 1453 1454 if (srcX < 0) { 1455 width -= -srcX; 1456 destX += -srcX; 1457 srcX = 0; 1458 } 1459 1460 if (srcY < 0) { 1461 height -= -srcY; 1462 destY += -srcY; 1463 srcY = 0; 1464 } 1465 1466 if (destX < 0) { 1467 width -= -destX; 1468 srcX += -destX; 1469 destX = 0; 1470 } 1471 1472 if (destY < 0) { 1473 height -= -destY; 1474 srcY += -destY; 1475 destY = 0; 1476 } 1477 1478 if (width < 0 || height < 0) 1479 return; 1480 1481 1482 assert(strb); 1483 assert(strb->surface); 1484 assert(stImage->pt); 1485 1486 src_format = strb->surface->format; 1487 dest_format = stImage->pt->format; 1488 1489 /* 1490 * Determine if the src framebuffer and dest texture have the same 1491 * base format. We need this to detect a case such as the framebuffer 1492 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1493 * texture format stores RGBA we need to set A=1 (overriding the 1494 * framebuffer's alpha values). We can't do that with the blit or 1495 * textured-quad paths. 1496 */ 1497 matching_base_formats = (strb->Base._BaseFormat == texImage->_BaseFormat); 1498 1499 if (matching_base_formats && ctx->_ImageTransferState == 0x0) { 1500 /* try potential hardware path */ 1501 struct pipe_surface *dest_surface = NULL; 1502 boolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1503 1504 if (src_format == dest_format && !do_flip) { 1505 /* use surface_copy() / blit */ 1506 1507 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1508 stImage->face, stImage->level, 1509 destZ, 1510 PIPE_BUFFER_USAGE_GPU_WRITE); 1511 1512 /* for surface_copy(), y=0=top, always */ 1513 pipe->surface_copy(pipe, 1514 /* dest */ 1515 dest_surface, 1516 destX, destY, 1517 /* src */ 1518 strb->surface, 1519 srcX, srcY, 1520 /* size */ 1521 width, height); 1522 use_fallback = GL_FALSE; 1523 } 1524 else if (screen->is_format_supported(screen, src_format, 1525 PIPE_TEXTURE_2D, 1526 PIPE_TEXTURE_USAGE_SAMPLER, 1527 0) && 1528 screen->is_format_supported(screen, dest_format, 1529 PIPE_TEXTURE_2D, 1530 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1531 0)) { 1532 /* draw textured quad to do the copy */ 1533 GLint srcY0, srcY1; 1534 1535 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1536 stImage->face, stImage->level, 1537 destZ, 1538 PIPE_BUFFER_USAGE_GPU_WRITE); 1539 1540 if (do_flip) { 1541 srcY1 = strb->Base.Height - srcY - height; 1542 srcY0 = srcY1 + height; 1543 } 1544 else { 1545 srcY0 = srcY; 1546 srcY1 = srcY0 + height; 1547 } 1548 util_blit_pixels(ctx->st->blit, 1549 strb->surface, 1550 srcX, srcY0, 1551 srcX + width, srcY1, 1552 dest_surface, 1553 destX, destY, 1554 destX + width, destY + height, 1555 0.0, PIPE_TEX_MIPFILTER_NEAREST); 1556 use_fallback = GL_FALSE; 1557 } 1558 1559 if (dest_surface) 1560 pipe_surface_reference(&dest_surface, NULL); 1561 } 1562 1563 if (use_fallback) { 1564 /* software fallback */ 1565 fallback_copy_texsubimage(ctx, target, level, 1566 strb, stImage, texBaseFormat, 1567 destX, destY, destZ, 1568 srcX, srcY, width, height); 1569 } 1570 1571 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1572 ctx->Driver.GenerateMipmap(ctx, target, texObj); 1573 } 1574} 1575 1576 1577 1578static void 1579st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1580 GLenum internalFormat, 1581 GLint x, GLint y, GLsizei width, GLint border) 1582{ 1583 struct gl_texture_unit *texUnit = 1584 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1585 struct gl_texture_object *texObj = 1586 _mesa_select_tex_object(ctx, texUnit, target); 1587 struct gl_texture_image *texImage = 1588 _mesa_select_tex_image(ctx, texObj, target, level); 1589 1590 /* Setup or redefine the texture object, texture and texture 1591 * image. Don't populate yet. 1592 */ 1593 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1594 width, border, 1595 GL_RGBA, CHAN_TYPE, NULL, 1596 &ctx->DefaultPacking, texObj, texImage); 1597 1598 st_copy_texsubimage(ctx, target, level, 1599 0, 0, 0, /* destX,Y,Z */ 1600 x, y, width, 1); /* src X, Y, size */ 1601} 1602 1603 1604static void 1605st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1606 GLenum internalFormat, 1607 GLint x, GLint y, GLsizei width, GLsizei height, 1608 GLint border) 1609{ 1610 struct gl_texture_unit *texUnit = 1611 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1612 struct gl_texture_object *texObj = 1613 _mesa_select_tex_object(ctx, texUnit, target); 1614 struct gl_texture_image *texImage = 1615 _mesa_select_tex_image(ctx, texObj, target, level); 1616 1617 /* Setup or redefine the texture object, texture and texture 1618 * image. Don't populate yet. 1619 */ 1620 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1621 width, height, border, 1622 GL_RGBA, CHAN_TYPE, NULL, 1623 &ctx->DefaultPacking, texObj, texImage); 1624 1625 st_copy_texsubimage(ctx, target, level, 1626 0, 0, 0, /* destX,Y,Z */ 1627 x, y, width, height); /* src X, Y, size */ 1628} 1629 1630 1631static void 1632st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1633 GLint xoffset, GLint x, GLint y, GLsizei width) 1634{ 1635 const GLint yoffset = 0, zoffset = 0; 1636 const GLsizei height = 1; 1637 st_copy_texsubimage(ctx, target, level, 1638 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1639 x, y, width, height); /* src X, Y, size */ 1640} 1641 1642 1643static void 1644st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1645 GLint xoffset, GLint yoffset, 1646 GLint x, GLint y, GLsizei width, GLsizei height) 1647{ 1648 const GLint zoffset = 0; 1649 st_copy_texsubimage(ctx, target, level, 1650 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1651 x, y, width, height); /* src X, Y, size */ 1652} 1653 1654 1655static void 1656st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1657 GLint xoffset, GLint yoffset, GLint zoffset, 1658 GLint x, GLint y, GLsizei width, GLsizei height) 1659{ 1660 st_copy_texsubimage(ctx, target, level, 1661 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1662 x, y, width, height); /* src X, Y, size */ 1663} 1664 1665 1666/** 1667 * Compute which mipmap levels that really need to be sent to the hardware. 1668 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1669 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1670 */ 1671static void 1672calculate_first_last_level(struct st_texture_object *stObj) 1673{ 1674 struct gl_texture_object *tObj = &stObj->base; 1675 1676 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1677 * and having firstLevel and lastLevel as signed prevents the need for 1678 * extra sign checks. 1679 */ 1680 GLint firstLevel; 1681 GLint lastLevel; 1682 1683 /* Yes, this looks overly complicated, but it's all needed. 1684 */ 1685 switch (tObj->Target) { 1686 case GL_TEXTURE_1D: 1687 case GL_TEXTURE_2D: 1688 case GL_TEXTURE_3D: 1689 case GL_TEXTURE_CUBE_MAP: 1690 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1691 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1692 */ 1693 firstLevel = lastLevel = tObj->BaseLevel; 1694 } 1695 else { 1696 firstLevel = 0; 1697 lastLevel = MIN2(tObj->MaxLevel, 1698 (int) tObj->Image[0][tObj->BaseLevel]->WidthLog2); 1699 } 1700 break; 1701 case GL_TEXTURE_RECTANGLE_NV: 1702 case GL_TEXTURE_4D_SGIS: 1703 firstLevel = lastLevel = 0; 1704 break; 1705 default: 1706 return; 1707 } 1708 1709 stObj->lastLevel = lastLevel; 1710} 1711 1712 1713static void 1714copy_image_data_to_texture(struct st_context *st, 1715 struct st_texture_object *stObj, 1716 GLuint dstLevel, 1717 struct st_texture_image *stImage) 1718{ 1719 if (stImage->pt) { 1720 /* Copy potentially with the blitter: 1721 */ 1722 st_texture_image_copy(st->pipe, 1723 stObj->pt, dstLevel, /* dest texture, level */ 1724 stImage->pt, /* src texture */ 1725 stImage->face 1726 ); 1727 1728 pipe_texture_reference(&stImage->pt, NULL); 1729 } 1730 else if (stImage->base.Data) { 1731 assert(stImage->base.Data != NULL); 1732 1733 /* More straightforward upload. 1734 */ 1735 1736 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1737 PIPE_TRANSFER_WRITE); 1738 1739 1740 st_texture_image_data(st, 1741 stObj->pt, 1742 stImage->face, 1743 dstLevel, 1744 stImage->base.Data, 1745 stImage->base.RowStride * 1746 stObj->pt->block.size, 1747 stImage->base.RowStride * 1748 stImage->base.Height * 1749 stObj->pt->block.size); 1750 _mesa_align_free(stImage->base.Data); 1751 stImage->base.Data = NULL; 1752 } 1753 1754 pipe_texture_reference(&stImage->pt, stObj->pt); 1755} 1756 1757 1758/** 1759 * Called during state validation. When this function is finished, 1760 * the texture object should be ready for rendering. 1761 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1762 */ 1763GLboolean 1764st_finalize_texture(GLcontext *ctx, 1765 struct pipe_context *pipe, 1766 struct gl_texture_object *tObj, 1767 GLboolean *needFlush) 1768{ 1769 struct st_texture_object *stObj = st_texture_object(tObj); 1770 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1771 GLuint cpp, face; 1772 struct st_texture_image *firstImage; 1773 1774 *needFlush = GL_FALSE; 1775 1776 /* We know/require this is true by now: 1777 */ 1778 assert(stObj->base._Complete); 1779 1780 /* What levels must the texture include at a minimum? 1781 */ 1782 calculate_first_last_level(stObj); 1783 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1784 1785 /* If both firstImage and stObj point to a texture which can contain 1786 * all active images, favour firstImage. Note that because of the 1787 * completeness requirement, we know that the image dimensions 1788 * will match. 1789 */ 1790 if (firstImage->pt && 1791 firstImage->pt != stObj->pt && 1792 firstImage->pt->last_level >= stObj->lastLevel) { 1793 pipe_texture_reference(&stObj->pt, firstImage->pt); 1794 } 1795 1796 /* FIXME: determine format block instead of cpp */ 1797 if (firstImage->base.IsCompressed) { 1798 cpp = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1799 } 1800 else { 1801 cpp = firstImage->base.TexFormat->TexelBytes; 1802 } 1803 1804 /* If we already have a gallium texture, check that it matches the texture 1805 * object's format, target, size, num_levels, etc. 1806 */ 1807 if (stObj->pt) { 1808 const enum pipe_format fmt = 1809 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1810 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1811 stObj->pt->format != fmt || 1812 stObj->pt->last_level < stObj->lastLevel || 1813 stObj->pt->width[0] != firstImage->base.Width2 || 1814 stObj->pt->height[0] != firstImage->base.Height2 || 1815 stObj->pt->depth[0] != firstImage->base.Depth2 || 1816 /* Nominal bytes per pixel: */ 1817 stObj->pt->block.size / stObj->pt->block.width != cpp) 1818 { 1819 pipe_texture_reference(&stObj->pt, NULL); 1820 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1821 } 1822 } 1823 1824 /* May need to create a new gallium texture: 1825 */ 1826 if (!stObj->pt) { 1827 const enum pipe_format fmt = 1828 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1829 GLuint usage = default_usage(fmt); 1830 1831 stObj->pt = st_texture_create(ctx->st, 1832 gl_target_to_pipe(stObj->base.Target), 1833 fmt, 1834 stObj->lastLevel, 1835 firstImage->base.Width2, 1836 firstImage->base.Height2, 1837 firstImage->base.Depth2, 1838 usage); 1839 1840 if (!stObj->pt) { 1841 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1842 return GL_FALSE; 1843 } 1844 } 1845 1846 /* Pull in any images not in the object's texture: 1847 */ 1848 for (face = 0; face < nr_faces; face++) { 1849 GLuint level; 1850 for (level = 0; level <= stObj->lastLevel; level++) { 1851 struct st_texture_image *stImage = 1852 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1853 1854 /* Need to import images in main memory or held in other textures. 1855 */ 1856 if (stImage && stObj->pt != stImage->pt) { 1857 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1858 *needFlush = GL_TRUE; 1859 } 1860 } 1861 } 1862 1863 return GL_TRUE; 1864} 1865 1866 1867/** 1868 * Returns pointer to a default/dummy texture. 1869 * This is typically used when the current shader has tex/sample instructions 1870 * but the user has not provided a (any) texture(s). 1871 */ 1872struct gl_texture_object * 1873st_get_default_texture(struct st_context *st) 1874{ 1875 if (!st->default_texture) { 1876 static const GLenum target = GL_TEXTURE_2D; 1877 GLubyte pixels[16][16][4]; 1878 struct gl_texture_object *texObj; 1879 struct gl_texture_image *texImg; 1880 GLuint i, j; 1881 1882 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1883 * when attempting to sample incomplete textures. 1884 */ 1885 for (i = 0; i < 16; i++) { 1886 for (j = 0; j < 16; j++) { 1887 pixels[i][j][0] = 0; 1888 pixels[i][j][1] = 0; 1889 pixels[i][j][2] = 0; 1890 pixels[i][j][3] = 255; 1891 } 1892 } 1893 1894 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1895 1896 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1897 1898 _mesa_init_teximage_fields(st->ctx, target, texImg, 1899 16, 16, 1, 0, /* w, h, d, border */ 1900 GL_RGBA); 1901 1902 st_TexImage(st->ctx, 2, target, 1903 0, GL_RGBA, /* level, intformat */ 1904 16, 16, 1, 0, /* w, h, d, border */ 1905 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1906 &st->ctx->DefaultPacking, 1907 texObj, texImg, 1908 0, 0); 1909 1910 texObj->MinFilter = GL_NEAREST; 1911 texObj->MagFilter = GL_NEAREST; 1912 texObj->_Complete = GL_TRUE; 1913 1914 st->default_texture = texObj; 1915 } 1916 return st->default_texture; 1917} 1918 1919 1920void 1921st_init_texture_functions(struct dd_function_table *functions) 1922{ 1923 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1924 functions->TexImage1D = st_TexImage1D; 1925 functions->TexImage2D = st_TexImage2D; 1926 functions->TexImage3D = st_TexImage3D; 1927 functions->TexSubImage1D = st_TexSubImage1D; 1928 functions->TexSubImage2D = st_TexSubImage2D; 1929 functions->TexSubImage3D = st_TexSubImage3D; 1930 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1931 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1932 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1933 functions->CopyTexImage1D = st_CopyTexImage1D; 1934 functions->CopyTexImage2D = st_CopyTexImage2D; 1935 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1936 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1937 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1938 functions->GenerateMipmap = st_generate_mipmap; 1939 1940 functions->GetTexImage = st_GetTexImage; 1941 1942 /* compressed texture functions */ 1943 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1944 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1945 functions->CompressedTextureSize = _mesa_compressed_texture_size; 1946 1947 functions->NewTextureObject = st_NewTextureObject; 1948 functions->NewTextureImage = st_NewTextureImage; 1949 functions->DeleteTexture = st_DeleteTextureObject; 1950 functions->FreeTexImageData = st_FreeTextureImageData; 1951 functions->UpdateTexturePalette = 0; 1952 1953 functions->TextureMemCpy = do_memcpy; 1954 1955 /* XXX Temporary until we can query pipe's texture sizes */ 1956 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1957} 1958