st_cb_texture.c revision 8f55a95178069d5e8b18647e6b675fc403d68073
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/fbobject.h" 35#include "main/formats.h" 36#include "main/image.h" 37#include "main/imports.h" 38#include "main/macros.h" 39#include "main/mipmap.h" 40#include "main/texcompress.h" 41#include "main/texfetch.h" 42#include "main/texgetimage.h" 43#include "main/teximage.h" 44#include "main/texobj.h" 45#include "main/texstore.h" 46 47#include "state_tracker/st_debug.h" 48#include "state_tracker/st_context.h" 49#include "state_tracker/st_cb_fbo.h" 50#include "state_tracker/st_cb_texture.h" 51#include "state_tracker/st_format.h" 52#include "state_tracker/st_public.h" 53#include "state_tracker/st_texture.h" 54#include "state_tracker/st_gen_mipmap.h" 55#include "state_tracker/st_inlines.h" 56#include "state_tracker/st_atom.h" 57 58#include "pipe/p_context.h" 59#include "pipe/p_defines.h" 60#include "util/u_inlines.h" 61#include "pipe/p_shader_tokens.h" 62#include "util/u_tile.h" 63#include "util/u_blit.h" 64#include "util/u_format.h" 65#include "util/u_surface.h" 66#include "util/u_sampler.h" 67#include "util/u_math.h" 68 69 70#define DBG if (0) printf 71 72 73static enum pipe_texture_target 74gl_target_to_pipe(GLenum target) 75{ 76 switch (target) { 77 case GL_TEXTURE_1D: 78 return PIPE_TEXTURE_1D; 79 80 case GL_TEXTURE_2D: 81 case GL_TEXTURE_RECTANGLE_NV: 82 return PIPE_TEXTURE_2D; 83 84 case GL_TEXTURE_3D: 85 return PIPE_TEXTURE_3D; 86 87 case GL_TEXTURE_CUBE_MAP_ARB: 88 return PIPE_TEXTURE_CUBE; 89 90 default: 91 assert(0); 92 return 0; 93 } 94} 95 96 97/** called via ctx->Driver.NewTextureImage() */ 98static struct gl_texture_image * 99st_NewTextureImage(GLcontext * ctx) 100{ 101 DBG("%s\n", __FUNCTION__); 102 (void) ctx; 103 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 104} 105 106 107/** called via ctx->Driver.NewTextureObject() */ 108static struct gl_texture_object * 109st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 110{ 111 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 112 113 DBG("%s\n", __FUNCTION__); 114 _mesa_initialize_texture_object(&obj->base, name, target); 115 116 return &obj->base; 117} 118 119/** called via ctx->Driver.DeleteTextureImage() */ 120static void 121st_DeleteTextureObject(GLcontext *ctx, 122 struct gl_texture_object *texObj) 123{ 124 struct st_texture_object *stObj = st_texture_object(texObj); 125 if (stObj->pt) 126 pipe_texture_reference(&stObj->pt, NULL); 127 if (stObj->sampler_view) 128 pipe_sampler_view_reference(&stObj->sampler_view, NULL); 129 130 _mesa_delete_texture_object(ctx, texObj); 131} 132 133 134/** called via ctx->Driver.FreeTexImageData() */ 135static void 136st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 137{ 138 struct st_texture_image *stImage = st_texture_image(texImage); 139 140 DBG("%s\n", __FUNCTION__); 141 142 if (stImage->pt) { 143 pipe_texture_reference(&stImage->pt, NULL); 144 } 145 146 if (texImage->Data) { 147 _mesa_align_free(texImage->Data); 148 texImage->Data = NULL; 149 } 150} 151 152 153/** 154 * From linux kernel i386 header files, copes with odd sizes better 155 * than COPY_DWORDS would: 156 * XXX Put this in src/mesa/main/imports.h ??? 157 */ 158#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) 159static INLINE void * 160__memcpy(void *to, const void *from, size_t n) 161{ 162 int d0, d1, d2; 163 __asm__ __volatile__("rep ; movsl\n\t" 164 "testb $2,%b4\n\t" 165 "je 1f\n\t" 166 "movsw\n" 167 "1:\ttestb $1,%b4\n\t" 168 "je 2f\n\t" 169 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 170 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 171 :"memory"); 172 return (to); 173} 174#else 175#define __memcpy(a,b,c) memcpy(a,b,c) 176#endif 177 178 179/** 180 * The system memcpy (at least on ubuntu 5.10) has problems copying 181 * to agp (writecombined) memory from a source which isn't 64-byte 182 * aligned - there is a 4x performance falloff. 183 * 184 * The x86 __memcpy is immune to this but is slightly slower 185 * (10%-ish) than the system memcpy. 186 * 187 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 188 * isn't much faster than x86_memcpy for agp copies. 189 * 190 * TODO: switch dynamically. 191 */ 192static void * 193do_memcpy(void *dest, const void *src, size_t n) 194{ 195 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { 196 return __memcpy(dest, src, n); 197 } 198 else 199 return memcpy(dest, src, n); 200} 201 202 203/** 204 * Return default texture usage bitmask for the given texture format. 205 */ 206static GLuint 207default_usage(enum pipe_format fmt) 208{ 209 GLuint usage = PIPE_TEXTURE_USAGE_SAMPLER; 210 if (util_format_is_depth_or_stencil(fmt)) 211 usage |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL; 212 else 213 usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET; 214 return usage; 215} 216 217 218/** 219 * Allocate a pipe_texture object for the given st_texture_object using 220 * the given st_texture_image to guess the mipmap size/levels. 221 * 222 * [comments...] 223 * Otherwise, store it in memory if (Border != 0) or (any dimension == 224 * 1). 225 * 226 * Otherwise, if max_level >= level >= min_level, create texture with 227 * space for images from min_level down to max_level. 228 * 229 * Otherwise, create texture with space for images from (level 0)..(1x1). 230 * Consider pruning this texture at a validation if the saving is worth it. 231 */ 232static void 233guess_and_alloc_texture(struct st_context *st, 234 struct st_texture_object *stObj, 235 const struct st_texture_image *stImage) 236{ 237 GLuint firstLevel; 238 GLuint lastLevel; 239 GLuint width = stImage->base.Width2; /* size w/out border */ 240 GLuint height = stImage->base.Height2; 241 GLuint depth = stImage->base.Depth2; 242 GLuint i, usage; 243 enum pipe_format fmt; 244 245 DBG("%s\n", __FUNCTION__); 246 247 assert(!stObj->pt); 248 249 if (stObj->pt && 250 (GLint) stImage->level > stObj->base.BaseLevel && 251 (stImage->base.Width == 1 || 252 (stObj->base.Target != GL_TEXTURE_1D && 253 stImage->base.Height == 1) || 254 (stObj->base.Target == GL_TEXTURE_3D && 255 stImage->base.Depth == 1))) 256 return; 257 258 /* If this image disrespects BaseLevel, allocate from level zero. 259 * Usually BaseLevel == 0, so it's unlikely to happen. 260 */ 261 if ((GLint) stImage->level < stObj->base.BaseLevel) 262 firstLevel = 0; 263 else 264 firstLevel = stObj->base.BaseLevel; 265 266 267 /* Figure out image dimensions at start level. 268 */ 269 for (i = stImage->level; i > firstLevel; i--) { 270 if (width != 1) 271 width <<= 1; 272 if (height != 1) 273 height <<= 1; 274 if (depth != 1) 275 depth <<= 1; 276 } 277 278 if (width == 0 || height == 0 || depth == 0) { 279 /* no texture needed */ 280 return; 281 } 282 283 /* Guess a reasonable value for lastLevel. This is probably going 284 * to be wrong fairly often and might mean that we have to look at 285 * resizable buffers, or require that buffers implement lazy 286 * pagetable arrangements. 287 */ 288 if ((stObj->base.MinFilter == GL_NEAREST || 289 stObj->base.MinFilter == GL_LINEAR || 290 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 291 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 292 !stObj->base.GenerateMipmap && 293 stImage->level == firstLevel) { 294 /* only alloc space for a single mipmap level */ 295 lastLevel = firstLevel; 296 } 297 else { 298 /* alloc space for a full mipmap */ 299 GLuint l2width = util_logbase2(width); 300 GLuint l2height = util_logbase2(height); 301 GLuint l2depth = util_logbase2(depth); 302 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 303 } 304 305 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat); 306 307 usage = default_usage(fmt); 308 309 stObj->pt = st_texture_create(st, 310 gl_target_to_pipe(stObj->base.Target), 311 fmt, 312 lastLevel, 313 width, 314 height, 315 depth, 316 usage); 317 318 stObj->pipe = st->pipe; 319 320 DBG("%s - success\n", __FUNCTION__); 321} 322 323 324/** 325 * Adjust pixel unpack params and image dimensions to strip off the 326 * texture border. 327 * Gallium doesn't support texture borders. They've seldem been used 328 * and seldom been implemented correctly anyway. 329 * \param unpackNew returns the new pixel unpack parameters 330 */ 331static void 332strip_texture_border(GLint border, 333 GLint *width, GLint *height, GLint *depth, 334 const struct gl_pixelstore_attrib *unpack, 335 struct gl_pixelstore_attrib *unpackNew) 336{ 337 assert(border > 0); /* sanity check */ 338 339 *unpackNew = *unpack; 340 341 if (unpackNew->RowLength == 0) 342 unpackNew->RowLength = *width; 343 344 if (depth && unpackNew->ImageHeight == 0) 345 unpackNew->ImageHeight = *height; 346 347 unpackNew->SkipPixels += border; 348 if (height) 349 unpackNew->SkipRows += border; 350 if (depth) 351 unpackNew->SkipImages += border; 352 353 assert(*width >= 3); 354 *width = *width - 2 * border; 355 if (height && *height >= 3) 356 *height = *height - 2 * border; 357 if (depth && *depth >= 3) 358 *depth = *depth - 2 * border; 359} 360 361 362/** 363 * Try to do texture compression via rendering. If the Gallium driver 364 * can render into a compressed surface this will allow us to do texture 365 * compression. 366 * \return GL_TRUE for success, GL_FALSE for failure 367 */ 368static GLboolean 369compress_with_blit(GLcontext * ctx, 370 GLenum target, GLint level, 371 GLint xoffset, GLint yoffset, GLint zoffset, 372 GLint width, GLint height, GLint depth, 373 GLenum format, GLenum type, const void *pixels, 374 const struct gl_pixelstore_attrib *unpack, 375 struct gl_texture_image *texImage) 376{ 377 const GLuint dstImageOffsets[1] = {0}; 378 struct st_texture_image *stImage = st_texture_image(texImage); 379 struct pipe_context *pipe = ctx->st->pipe; 380 struct pipe_screen *screen = pipe->screen; 381 gl_format mesa_format; 382 struct pipe_texture templ; 383 struct pipe_texture *src_tex; 384 struct pipe_sampler_view view_templ; 385 struct pipe_sampler_view *src_view; 386 struct pipe_surface *dst_surface; 387 struct pipe_transfer *tex_xfer; 388 void *map; 389 390 if (!stImage->pt) { 391 /* XXX: Can this happen? Should we assert? */ 392 return GL_FALSE; 393 } 394 395 /* get destination surface (in the compressed texture) */ 396 dst_surface = screen->get_tex_surface(screen, stImage->pt, 397 stImage->face, stImage->level, 0, 398 PIPE_BUFFER_USAGE_GPU_WRITE); 399 if (!dst_surface) { 400 /* can't render into this format (or other problem) */ 401 return GL_FALSE; 402 } 403 404 /* Choose format for the temporary RGBA texture image. 405 */ 406 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); 407 assert(mesa_format); 408 if (!mesa_format) 409 return GL_FALSE; 410 411 /* Create the temporary source texture 412 */ 413 memset(&templ, 0, sizeof(templ)); 414 templ.target = PIPE_TEXTURE_2D; 415 templ.format = st_mesa_format_to_pipe_format(mesa_format); 416 templ.width0 = width; 417 templ.height0 = height; 418 templ.depth0 = 1; 419 templ.last_level = 0; 420 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 421 src_tex = screen->texture_create(screen, &templ); 422 423 if (!src_tex) 424 return GL_FALSE; 425 426 /* Put user's tex data into the temporary texture 427 */ 428 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex, 429 0, 0, 0, /* face, level are zero */ 430 PIPE_TRANSFER_WRITE, 431 0, 0, width, height); /* x, y, w, h */ 432 map = pipe->transfer_map(pipe, tex_xfer); 433 434 _mesa_texstore(ctx, 2, GL_RGBA, mesa_format, 435 map, /* dest ptr */ 436 0, 0, 0, /* dest x/y/z offset */ 437 tex_xfer->stride, /* dest row stride (bytes) */ 438 dstImageOffsets, /* image offsets (for 3D only) */ 439 width, height, 1, /* size */ 440 format, type, /* source format/type */ 441 pixels, /* source data */ 442 unpack); /* source data packing */ 443 444 pipe->transfer_unmap(pipe, tex_xfer); 445 pipe->tex_transfer_destroy(pipe, tex_xfer); 446 447 /* Create temporary sampler view */ 448 u_sampler_view_default_template(&view_templ, 449 src_tex, 450 src_tex->format); 451 src_view = pipe->create_sampler_view(pipe, src_tex, &view_templ); 452 453 454 /* copy / compress image */ 455 util_blit_pixels_tex(ctx->st->blit, 456 src_view, /* sampler view (src) */ 457 0, 0, /* src x0, y0 */ 458 width, height, /* src x1, y1 */ 459 dst_surface, /* pipe_surface (dst) */ 460 xoffset, yoffset, /* dst x0, y0 */ 461 xoffset + width, /* dst x1 */ 462 yoffset + height, /* dst y1 */ 463 0.0, /* z */ 464 PIPE_TEX_MIPFILTER_NEAREST); 465 466 pipe_surface_reference(&dst_surface, NULL); 467 pipe_texture_reference(&src_tex, NULL); 468 pipe_sampler_view_reference(&src_view, NULL); 469 470 return GL_TRUE; 471} 472 473 474/** 475 * Do glTexImage1/2/3D(). 476 */ 477static void 478st_TexImage(GLcontext * ctx, 479 GLint dims, 480 GLenum target, GLint level, 481 GLint internalFormat, 482 GLint width, GLint height, GLint depth, 483 GLint border, 484 GLenum format, GLenum type, const void *pixels, 485 const struct gl_pixelstore_attrib *unpack, 486 struct gl_texture_object *texObj, 487 struct gl_texture_image *texImage, 488 GLsizei imageSize, GLboolean compressed_src) 489{ 490 struct pipe_screen *screen = ctx->st->pipe->screen; 491 struct st_texture_object *stObj = st_texture_object(texObj); 492 struct st_texture_image *stImage = st_texture_image(texImage); 493 GLint postConvWidth, postConvHeight; 494 GLint texelBytes, sizeInBytes; 495 GLuint dstRowStride = 0; 496 struct gl_pixelstore_attrib unpackNB; 497 enum pipe_transfer_usage transfer_usage = 0; 498 499 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 500 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 501 502 /* switch to "normal" */ 503 if (stObj->surface_based) { 504 _mesa_clear_texture_object(ctx, texObj); 505 stObj->surface_based = GL_FALSE; 506 } 507 508 /* gallium does not support texture borders, strip it off */ 509 if (border) { 510 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 511 unpack = &unpackNB; 512 texImage->Width = width; 513 texImage->Height = height; 514 texImage->Depth = depth; 515 texImage->Border = 0; 516 border = 0; 517 } 518 519 postConvWidth = width; 520 postConvHeight = height; 521 522 stImage->face = _mesa_tex_target_to_face(target); 523 stImage->level = level; 524 525#if FEATURE_convolve 526 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 527 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 528 &postConvHeight); 529 } 530#endif 531 532 _mesa_set_fetch_functions(texImage, dims); 533 534 if (_mesa_is_format_compressed(texImage->TexFormat)) { 535 /* must be a compressed format */ 536 texelBytes = 0; 537 } 538 else { 539 texelBytes = _mesa_get_format_bytes(texImage->TexFormat); 540 541 /* Minimum pitch of 32 bytes */ 542 if (postConvWidth * texelBytes < 32) { 543 postConvWidth = 32 / texelBytes; 544 texImage->RowStride = postConvWidth; 545 } 546 547 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 548 /*assert(texImage->RowStride == postConvWidth);*/ 549 } 550 551 /* Release the reference to a potentially orphaned buffer. 552 * Release any old malloced memory. 553 */ 554 if (stImage->pt) { 555 pipe_texture_reference(&stImage->pt, NULL); 556 assert(!texImage->Data); 557 } 558 else if (texImage->Data) { 559 _mesa_align_free(texImage->Data); 560 } 561 562 /* 563 * See if the new image is somehow incompatible with the existing 564 * mipmap. If so, free the old mipmap. 565 */ 566 if (stObj->pt) { 567 if (stObj->teximage_realloc || 568 level > (GLint) stObj->pt->last_level || 569 !st_texture_match_image(stObj->pt, &stImage->base, 570 stImage->face, stImage->level)) { 571 DBG("release it\n"); 572 pipe_texture_reference(&stObj->pt, NULL); 573 assert(!stObj->pt); 574 stObj->teximage_realloc = FALSE; 575 } 576 } 577 578 if (width == 0 || height == 0 || depth == 0) { 579 /* stop after freeing old image */ 580 return; 581 } 582 583 if (!stObj->pt) { 584 guess_and_alloc_texture(ctx->st, stObj, stImage); 585 if (!stObj->pt) { 586 /* Probably out of memory. 587 * Try flushing any pending rendering, then retry. 588 */ 589 st_finish(ctx->st); 590 guess_and_alloc_texture(ctx->st, stObj, stImage); 591 if (!stObj->pt) { 592 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 593 return; 594 } 595 } 596 } 597 598 assert(!stImage->pt); 599 600 if (stObj->pt && 601 st_texture_match_image(stObj->pt, &stImage->base, 602 stImage->face, stImage->level)) { 603 604 pipe_texture_reference(&stImage->pt, stObj->pt); 605 assert(stImage->pt); 606 } 607 608 if (!stImage->pt) 609 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 610 611 /* st_CopyTexImage calls this function with pixels == NULL, with 612 * the expectation that the texture will be set up but nothing 613 * more will be done. This is where those calls return: 614 */ 615 if (compressed_src) { 616 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 617 unpack, 618 "glCompressedTexImage"); 619 } 620 else { 621 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 622 format, type, 623 pixels, unpack, "glTexImage"); 624 } 625 626 /* Note: we can't check for pixels==NULL until after we've allocated 627 * memory for the texture. 628 */ 629 630 /* See if we can do texture compression with a blit/render. 631 */ 632 if (!compressed_src && 633 !ctx->Mesa_DXTn && 634 _mesa_is_format_compressed(texImage->TexFormat) && 635 screen->is_format_supported(screen, 636 stImage->pt->format, 637 stImage->pt->target, 638 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 639 if (!pixels) 640 goto done; 641 642 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 643 format, type, pixels, unpack, texImage)) { 644 goto done; 645 } 646 } 647 648 if (stImage->pt) { 649 if (format == GL_DEPTH_COMPONENT && 650 util_format_is_depth_and_stencil(stImage->pt->format)) 651 transfer_usage = PIPE_TRANSFER_READ_WRITE; 652 else 653 transfer_usage = PIPE_TRANSFER_WRITE; 654 655 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 656 transfer_usage, 0, 0, 657 stImage->base.Width, 658 stImage->base.Height); 659 if(stImage->transfer) 660 dstRowStride = stImage->transfer->stride; 661 } 662 else { 663 /* Allocate regular memory and store the image there temporarily. */ 664 if (_mesa_is_format_compressed(texImage->TexFormat)) { 665 sizeInBytes = _mesa_format_image_size(texImage->TexFormat, 666 texImage->Width, 667 texImage->Height, 668 texImage->Depth); 669 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width); 670 assert(dims != 3); 671 } 672 else { 673 dstRowStride = postConvWidth * texelBytes; 674 sizeInBytes = depth * dstRowStride * postConvHeight; 675 } 676 677 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 678 } 679 680 if (!texImage->Data) { 681 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 682 return; 683 } 684 685 if (!pixels) 686 goto done; 687 688 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 689 width, height, depth, width * texelBytes, dstRowStride); 690 691 /* Copy data. Would like to know when it's ok for us to eg. use 692 * the blitter to copy. Or, use the hardware to do the format 693 * conversion and copy: 694 */ 695 if (compressed_src) { 696 const GLuint srcImageStride = _mesa_format_row_stride(texImage->TexFormat, width); 697 if(dstRowStride == srcImageStride) 698 memcpy(texImage->Data, pixels, imageSize); 699 else 700 { 701 char *dst = texImage->Data; 702 const char *src = pixels; 703 GLuint i, bw, bh, lines; 704 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh); 705 lines = (height + bh - 1) / bh; 706 707 for(i = 0; i < lines; ++i) 708 { 709 memcpy(dst, src, srcImageStride); 710 dst += dstRowStride; 711 src += srcImageStride; 712 } 713 } 714 } 715 else { 716 const GLuint srcImageStride = 717 _mesa_image_image_stride(unpack, width, height, format, type); 718 GLint i; 719 const GLubyte *src = (const GLubyte *) pixels; 720 721 for (i = 0; i < depth; i++) { 722 if (!_mesa_texstore(ctx, dims, 723 texImage->_BaseFormat, 724 texImage->TexFormat, 725 texImage->Data, 726 0, 0, 0, /* dstX/Y/Zoffset */ 727 dstRowStride, 728 texImage->ImageOffsets, 729 width, height, 1, 730 format, type, src, unpack)) { 731 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 732 } 733 734 if (stImage->pt && i + 1 < depth) { 735 /* unmap this slice */ 736 st_texture_image_unmap(ctx->st, stImage); 737 /* map next slice of 3D texture */ 738 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 739 transfer_usage, 0, 0, 740 stImage->base.Width, 741 stImage->base.Height); 742 src += srcImageStride; 743 } 744 } 745 } 746 747done: 748 _mesa_unmap_teximage_pbo(ctx, unpack); 749 750 if (stImage->pt && texImage->Data) { 751 st_texture_image_unmap(ctx->st, stImage); 752 texImage->Data = NULL; 753 } 754} 755 756 757static void 758st_TexImage3D(GLcontext * ctx, 759 GLenum target, GLint level, 760 GLint internalFormat, 761 GLint width, GLint height, GLint depth, 762 GLint border, 763 GLenum format, GLenum type, const void *pixels, 764 const struct gl_pixelstore_attrib *unpack, 765 struct gl_texture_object *texObj, 766 struct gl_texture_image *texImage) 767{ 768 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 769 border, format, type, pixels, unpack, texObj, texImage, 770 0, GL_FALSE); 771} 772 773 774static void 775st_TexImage2D(GLcontext * ctx, 776 GLenum target, GLint level, 777 GLint internalFormat, 778 GLint width, GLint height, GLint border, 779 GLenum format, GLenum type, const void *pixels, 780 const struct gl_pixelstore_attrib *unpack, 781 struct gl_texture_object *texObj, 782 struct gl_texture_image *texImage) 783{ 784 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 785 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 786} 787 788 789static void 790st_TexImage1D(GLcontext * ctx, 791 GLenum target, GLint level, 792 GLint internalFormat, 793 GLint width, 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, 1, target, level, internalFormat, width, 1, 1, border, 800 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 801} 802 803 804static void 805st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 806 GLint internalFormat, 807 GLint width, GLint height, GLint border, 808 GLsizei imageSize, const GLvoid *data, 809 struct gl_texture_object *texObj, 810 struct gl_texture_image *texImage) 811{ 812 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 813 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 814} 815 816 817 818/** 819 * glGetTexImage() helper: decompress a compressed texture by rendering 820 * a textured quad. Store the results in the user's buffer. 821 */ 822static void 823decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 824 GLenum format, GLenum type, GLvoid *pixels, 825 struct gl_texture_object *texObj, 826 struct gl_texture_image *texImage) 827{ 828 struct pipe_context *pipe = ctx->st->pipe; 829 struct pipe_screen *screen = pipe->screen; 830 struct st_texture_image *stImage = st_texture_image(texImage); 831 struct st_texture_object *stObj = st_texture_object(texObj); 832 struct pipe_sampler_view *src_view = st_get_stobj_sampler_view(stObj); 833 const GLuint width = texImage->Width; 834 const GLuint height = texImage->Height; 835 struct pipe_surface *dst_surface; 836 struct pipe_texture *dst_texture; 837 struct pipe_transfer *tex_xfer; 838 839 /* create temp / dest surface */ 840 if (!util_create_rgba_surface(screen, width, height, 841 &dst_texture, &dst_surface)) { 842 _mesa_problem(ctx, "util_create_rgba_surface() failed " 843 "in decompress_with_blit()"); 844 return; 845 } 846 847 /* blit/render/decompress */ 848 util_blit_pixels_tex(ctx->st->blit, 849 src_view, /* pipe_texture (src) */ 850 0, 0, /* src x0, y0 */ 851 width, height, /* src x1, y1 */ 852 dst_surface, /* pipe_surface (dst) */ 853 0, 0, /* dst x0, y0 */ 854 width, height, /* dst x1, y1 */ 855 0.0, /* z */ 856 PIPE_TEX_MIPFILTER_NEAREST); 857 858 /* map the dst_surface so we can read from it */ 859 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 860 dst_texture, 0, 0, 0, 861 PIPE_TRANSFER_READ, 862 0, 0, width, height); 863 864 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 865 866 /* copy/pack data into user buffer */ 867 if (st_equal_formats(stImage->pt->format, format, type)) { 868 /* memcpy */ 869 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); 870 ubyte *map = pipe->transfer_map(pipe, tex_xfer); 871 GLuint row; 872 for (row = 0; row < height; row++) { 873 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 874 height, format, type, row, 0); 875 memcpy(dest, map, bytesPerRow); 876 map += tex_xfer->stride; 877 } 878 pipe->transfer_unmap(pipe, tex_xfer); 879 } 880 else { 881 /* format translation via floats */ 882 GLuint row; 883 for (row = 0; row < height; row++) { 884 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 885 GLfloat rgba[4 * MAX_WIDTH]; 886 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 887 height, format, type, row, 0); 888 889 if (ST_DEBUG & DEBUG_FALLBACK) 890 debug_printf("%s: fallback format translation\n", __FUNCTION__); 891 892 /* get float[4] rgba row from surface */ 893 pipe_get_tile_rgba(pipe, tex_xfer, 0, row, width, 1, rgba); 894 895 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 896 type, dest, &ctx->Pack, transferOps); 897 } 898 } 899 900 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 901 902 /* destroy the temp / dest surface */ 903 util_destroy_rgba_surface(dst_texture, dst_surface); 904} 905 906 907 908/** 909 * Need to map texture image into memory before copying image data, 910 * then unmap it. 911 */ 912static void 913st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 914 GLenum format, GLenum type, GLvoid * pixels, 915 struct gl_texture_object *texObj, 916 struct gl_texture_image *texImage, GLboolean compressed_dst) 917{ 918 struct st_texture_image *stImage = st_texture_image(texImage); 919 const GLuint dstImageStride = 920 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 921 format, type); 922 GLuint depth, i; 923 GLubyte *dest; 924 925 if (stImage->pt && 926 util_format_is_compressed(stImage->pt->format) && 927 !compressed_dst) { 928 /* Need to decompress the texture. 929 * We'll do this by rendering a textured quad. 930 * Note that we only expect RGBA formats (no Z/depth formats). 931 */ 932 decompress_with_blit(ctx, target, level, format, type, pixels, 933 texObj, texImage); 934 return; 935 } 936 937 /* Map */ 938 if (stImage->pt) { 939 /* Image is stored in hardware format in a buffer managed by the 940 * kernel. Need to explicitly map and unmap it. 941 */ 942 unsigned face = _mesa_tex_target_to_face(target); 943 944 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 945 PIPE_TRANSFER_READ); 946 947 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 948 PIPE_TRANSFER_READ, 0, 0, 949 stImage->base.Width, 950 stImage->base.Height); 951 texImage->RowStride = stImage->transfer->stride / util_format_get_blocksize(stImage->pt->format); 952 } 953 else { 954 /* Otherwise, the image should actually be stored in 955 * texImage->Data. This is pretty confusing for 956 * everybody, I'd much prefer to separate the two functions of 957 * texImage->Data - storage for texture images in main memory 958 * and access (ie mappings) of images. In other words, we'd 959 * create a new texImage->Map field and leave Data simply for 960 * storage. 961 */ 962 assert(texImage->Data); 963 } 964 965 depth = texImage->Depth; 966 texImage->Depth = 1; 967 968 dest = (GLubyte *) pixels; 969 970 for (i = 0; i < depth; i++) { 971 if (compressed_dst) { 972 _mesa_get_compressed_teximage(ctx, target, level, dest, 973 texObj, texImage); 974 } 975 else { 976 _mesa_get_teximage(ctx, target, level, format, type, dest, 977 texObj, texImage); 978 } 979 980 if (stImage->pt && i + 1 < depth) { 981 /* unmap this slice */ 982 st_texture_image_unmap(ctx->st, stImage); 983 /* map next slice of 3D texture */ 984 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 985 PIPE_TRANSFER_READ, 0, 0, 986 stImage->base.Width, 987 stImage->base.Height); 988 dest += dstImageStride; 989 } 990 } 991 992 texImage->Depth = depth; 993 994 /* Unmap */ 995 if (stImage->pt) { 996 st_texture_image_unmap(ctx->st, stImage); 997 texImage->Data = NULL; 998 } 999} 1000 1001 1002static void 1003st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 1004 GLenum format, GLenum type, GLvoid * pixels, 1005 struct gl_texture_object *texObj, 1006 struct gl_texture_image *texImage) 1007{ 1008 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 1009 GL_FALSE); 1010} 1011 1012 1013static void 1014st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 1015 GLvoid *pixels, 1016 struct gl_texture_object *texObj, 1017 struct gl_texture_image *texImage) 1018{ 1019 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1020 GL_TRUE); 1021} 1022 1023 1024 1025static void 1026st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1027 GLint xoffset, GLint yoffset, GLint zoffset, 1028 GLint width, GLint height, GLint depth, 1029 GLenum format, GLenum type, const void *pixels, 1030 const struct gl_pixelstore_attrib *packing, 1031 struct gl_texture_object *texObj, 1032 struct gl_texture_image *texImage) 1033{ 1034 struct pipe_screen *screen = ctx->st->pipe->screen; 1035 struct st_texture_image *stImage = st_texture_image(texImage); 1036 GLuint dstRowStride; 1037 const GLuint srcImageStride = 1038 _mesa_image_image_stride(packing, width, height, format, type); 1039 GLint i; 1040 const GLubyte *src; 1041 /* init to silence warning only: */ 1042 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1043 1044 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1045 _mesa_lookup_enum_by_nr(target), 1046 level, xoffset, yoffset, width, height); 1047 1048 pixels = 1049 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1050 type, pixels, packing, "glTexSubImage2D"); 1051 if (!pixels) 1052 return; 1053 1054 /* See if we can do texture compression with a blit/render. 1055 */ 1056 if (!ctx->Mesa_DXTn && 1057 _mesa_is_format_compressed(texImage->TexFormat) && 1058 screen->is_format_supported(screen, 1059 stImage->pt->format, 1060 stImage->pt->target, 1061 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1062 if (compress_with_blit(ctx, target, level, 1063 xoffset, yoffset, zoffset, 1064 width, height, depth, 1065 format, type, pixels, packing, texImage)) { 1066 goto done; 1067 } 1068 } 1069 1070 /* Map buffer if necessary. Need to lock to prevent other contexts 1071 * from uploading the buffer under us. 1072 */ 1073 if (stImage->pt) { 1074 unsigned face = _mesa_tex_target_to_face(target); 1075 1076 if (format == GL_DEPTH_COMPONENT && 1077 util_format_is_depth_and_stencil(stImage->pt->format)) 1078 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1079 else 1080 transfer_usage = PIPE_TRANSFER_WRITE; 1081 1082 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1083 transfer_usage); 1084 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1085 transfer_usage, 1086 xoffset, yoffset, 1087 width, height); 1088 } 1089 1090 if (!texImage->Data) { 1091 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1092 goto done; 1093 } 1094 1095 src = (const GLubyte *) pixels; 1096 dstRowStride = stImage->transfer->stride; 1097 1098 for (i = 0; i < depth; i++) { 1099 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat, 1100 texImage->TexFormat, 1101 texImage->Data, 1102 0, 0, 0, 1103 dstRowStride, 1104 texImage->ImageOffsets, 1105 width, height, 1, 1106 format, type, src, packing)) { 1107 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1108 } 1109 1110 if (stImage->pt && i + 1 < depth) { 1111 /* unmap this slice */ 1112 st_texture_image_unmap(ctx->st, stImage); 1113 /* map next slice of 3D texture */ 1114 texImage->Data = st_texture_image_map(ctx->st, stImage, 1115 zoffset + i + 1, 1116 transfer_usage, 1117 xoffset, yoffset, 1118 width, height); 1119 src += srcImageStride; 1120 } 1121 } 1122 1123done: 1124 _mesa_unmap_teximage_pbo(ctx, packing); 1125 1126 if (stImage->pt && texImage->Data) { 1127 st_texture_image_unmap(ctx->st, stImage); 1128 texImage->Data = NULL; 1129 } 1130} 1131 1132 1133 1134static void 1135st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1136 GLint xoffset, GLint yoffset, GLint zoffset, 1137 GLsizei width, GLsizei height, GLsizei depth, 1138 GLenum format, GLenum type, const GLvoid *pixels, 1139 const struct gl_pixelstore_attrib *packing, 1140 struct gl_texture_object *texObj, 1141 struct gl_texture_image *texImage) 1142{ 1143 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1144 width, height, depth, format, type, 1145 pixels, packing, texObj, texImage); 1146} 1147 1148 1149static void 1150st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1151 GLint xoffset, GLint yoffset, 1152 GLsizei width, GLsizei height, 1153 GLenum format, GLenum type, const GLvoid * pixels, 1154 const struct gl_pixelstore_attrib *packing, 1155 struct gl_texture_object *texObj, 1156 struct gl_texture_image *texImage) 1157{ 1158 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1159 width, height, 1, format, type, 1160 pixels, packing, texObj, texImage); 1161} 1162 1163 1164static void 1165st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1166 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1167 const GLvoid * pixels, 1168 const struct gl_pixelstore_attrib *packing, 1169 struct gl_texture_object *texObj, 1170 struct gl_texture_image *texImage) 1171{ 1172 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1173 format, type, pixels, packing, texObj, texImage); 1174} 1175 1176 1177static void 1178st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1179 GLint xoffset, GLsizei width, 1180 GLenum format, 1181 GLsizei imageSize, const GLvoid *data, 1182 struct gl_texture_object *texObj, 1183 struct gl_texture_image *texImage) 1184{ 1185 assert(0); 1186} 1187 1188 1189static void 1190st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1191 GLint xoffset, GLint yoffset, 1192 GLsizei width, GLint height, 1193 GLenum format, 1194 GLsizei imageSize, const GLvoid *data, 1195 struct gl_texture_object *texObj, 1196 struct gl_texture_image *texImage) 1197{ 1198 struct st_texture_image *stImage = st_texture_image(texImage); 1199 int srcBlockStride; 1200 int dstBlockStride; 1201 int y; 1202 enum pipe_format pformat= stImage->pt->format; 1203 1204 if (stImage->pt) { 1205 unsigned face = _mesa_tex_target_to_face(target); 1206 1207 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1208 PIPE_TRANSFER_WRITE); 1209 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1210 PIPE_TRANSFER_WRITE, 1211 xoffset, yoffset, 1212 width, height); 1213 1214 srcBlockStride = util_format_get_stride(pformat, width); 1215 dstBlockStride = stImage->transfer->stride; 1216 } else { 1217 assert(stImage->pt); 1218 /* TODO find good values for block and strides */ 1219 /* TODO also adjust texImage->data for yoffset/xoffset */ 1220 return; 1221 } 1222 1223 if (!texImage->Data) { 1224 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1225 return; 1226 } 1227 1228 assert(xoffset % util_format_get_blockwidth(pformat) == 0); 1229 assert(yoffset % util_format_get_blockheight(pformat) == 0); 1230 assert(width % util_format_get_blockwidth(pformat) == 0); 1231 assert(height % util_format_get_blockheight(pformat) == 0); 1232 1233 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) { 1234 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1235 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y); 1236 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y); 1237 memcpy(dst, src, util_format_get_stride(pformat, width)); 1238 } 1239 1240 if (stImage->pt) { 1241 st_texture_image_unmap(ctx->st, stImage); 1242 texImage->Data = NULL; 1243 } 1244} 1245 1246 1247static void 1248st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1249 GLint xoffset, GLint yoffset, GLint zoffset, 1250 GLsizei width, GLint height, GLint depth, 1251 GLenum format, 1252 GLsizei imageSize, const GLvoid *data, 1253 struct gl_texture_object *texObj, 1254 struct gl_texture_image *texImage) 1255{ 1256 assert(0); 1257} 1258 1259 1260 1261/** 1262 * Do a CopyTexSubImage operation using a read transfer from the source, 1263 * a write transfer to the destination and get_tile()/put_tile() to access 1264 * the pixels/texels. 1265 * 1266 * Note: srcY=0=TOP of renderbuffer 1267 */ 1268static void 1269fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1270 struct st_renderbuffer *strb, 1271 struct st_texture_image *stImage, 1272 GLenum baseFormat, 1273 GLint destX, GLint destY, GLint destZ, 1274 GLint srcX, GLint srcY, 1275 GLsizei width, GLsizei height) 1276{ 1277 struct pipe_context *pipe = ctx->st->pipe; 1278 struct pipe_transfer *src_trans; 1279 GLvoid *texDest; 1280 enum pipe_transfer_usage transfer_usage; 1281 1282 if (ST_DEBUG & DEBUG_FALLBACK) 1283 debug_printf("%s: fallback processing\n", __FUNCTION__); 1284 1285 assert(width <= MAX_WIDTH); 1286 1287 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1288 srcY = strb->Base.Height - srcY - height; 1289 } 1290 1291 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1292 strb->texture, 1293 0, 0, 0, 1294 PIPE_TRANSFER_READ, 1295 srcX, srcY, 1296 width, height); 1297 1298 if ((baseFormat == GL_DEPTH_COMPONENT || 1299 baseFormat == GL_DEPTH_STENCIL) && 1300 util_format_is_depth_and_stencil(stImage->pt->format)) 1301 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1302 else 1303 transfer_usage = PIPE_TRANSFER_WRITE; 1304 1305 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1306 transfer_usage); 1307 1308 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1309 destX, destY, width, height); 1310 1311 if (baseFormat == GL_DEPTH_COMPONENT || 1312 baseFormat == GL_DEPTH_STENCIL) { 1313 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1314 ctx->Pixel.DepthBias != 0.0F); 1315 GLint row, yStep; 1316 1317 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1318 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1319 srcY = height - 1; 1320 yStep = -1; 1321 } 1322 else { 1323 srcY = 0; 1324 yStep = 1; 1325 } 1326 1327 /* To avoid a large temp memory allocation, do copy row by row */ 1328 for (row = 0; row < height; row++, srcY += yStep) { 1329 uint data[MAX_WIDTH]; 1330 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data); 1331 if (scaleOrBias) { 1332 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1333 } 1334 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data); 1335 } 1336 } 1337 else { 1338 /* RGBA format */ 1339 GLfloat *tempSrc = 1340 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); 1341 1342 if (tempSrc && texDest) { 1343 const GLint dims = 2; 1344 const GLint dstRowStride = stImage->transfer->stride; 1345 struct gl_texture_image *texImage = &stImage->base; 1346 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1347 1348 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1349 unpack.Invert = GL_TRUE; 1350 } 1351 1352 /* get float/RGBA image from framebuffer */ 1353 /* XXX this usually involves a lot of int/float conversion. 1354 * try to avoid that someday. 1355 */ 1356 pipe_get_tile_rgba(pipe, src_trans, 0, 0, width, height, tempSrc); 1357 1358 /* Store into texture memory. 1359 * Note that this does some special things such as pixel transfer 1360 * ops and format conversion. In particular, if the dest tex format 1361 * is actually RGBA but the user created the texture as GL_RGB we 1362 * need to fill-in/override the alpha channel with 1.0. 1363 */ 1364 _mesa_texstore(ctx, dims, 1365 texImage->_BaseFormat, 1366 texImage->TexFormat, 1367 texDest, 1368 0, 0, 0, 1369 dstRowStride, 1370 texImage->ImageOffsets, 1371 width, height, 1, 1372 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1373 &unpack); 1374 } 1375 else { 1376 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1377 } 1378 1379 if (tempSrc) 1380 free(tempSrc); 1381 } 1382 1383 st_texture_image_unmap(ctx->st, stImage); 1384 pipe->tex_transfer_destroy(pipe, src_trans); 1385} 1386 1387 1388 1389/** 1390 * If the format of the src renderbuffer and the format of the dest 1391 * texture are compatible (in terms of blitting), return a TGSI writemask 1392 * to be used during the blit. 1393 * If the src/dest are incompatible, return 0. 1394 */ 1395static unsigned 1396compatible_src_dst_formats(GLcontext *ctx, 1397 const struct gl_renderbuffer *src, 1398 const struct gl_texture_image *dst) 1399{ 1400 /* Get logical base formats for the src and dest. 1401 * That is, use the user-requested formats and not the actual, device- 1402 * chosen formats. 1403 * For example, the user may have requested an A8 texture but the 1404 * driver may actually be using an RGBA texture format. When we 1405 * copy/blit to that texture, we only want to copy the Alpha channel 1406 * and not the RGB channels. 1407 * 1408 * Similarly, when the src FBO was created an RGB format may have been 1409 * requested but the driver actually chose an RGBA format. In that case, 1410 * we don't want to copy the undefined Alpha channel to the dest texture 1411 * (it should be 1.0). 1412 */ 1413 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat); 1414 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat); 1415 1416 /** 1417 * XXX when we have red-only and red/green renderbuffers we'll need 1418 * to add more cases here (or implement a general-purpose routine that 1419 * queries the existance of the R,G,B,A channels in the src and dest). 1420 */ 1421 if (srcFormat == dstFormat) { 1422 /* This is the same as matching_base_formats, which should 1423 * always pass, as it did previously. 1424 */ 1425 return TGSI_WRITEMASK_XYZW; 1426 } 1427 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) { 1428 /* Make sure that A in the dest is 1. The actual src format 1429 * may be RGBA and have undefined A values. 1430 */ 1431 return TGSI_WRITEMASK_XYZ; 1432 } 1433 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) { 1434 /* Make sure that A in the dest is 1. The actual dst format 1435 * may be RGBA and will need A=1 to provide proper alpha values 1436 * when sampled later. 1437 */ 1438 return TGSI_WRITEMASK_XYZ; 1439 } 1440 else { 1441 if (ST_DEBUG & DEBUG_FALLBACK) 1442 debug_printf("%s failed for src %s, dst %s\n", 1443 __FUNCTION__, 1444 _mesa_lookup_enum_by_nr(srcFormat), 1445 _mesa_lookup_enum_by_nr(dstFormat)); 1446 1447 /* Otherwise fail. 1448 */ 1449 return 0; 1450 } 1451} 1452 1453 1454 1455/** 1456 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1457 * Note that the region to copy has already been clipped so we know we 1458 * won't read from outside the source renderbuffer's bounds. 1459 * 1460 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1461 */ 1462static void 1463st_copy_texsubimage(GLcontext *ctx, 1464 GLenum target, GLint level, 1465 GLint destX, GLint destY, GLint destZ, 1466 GLint srcX, GLint srcY, 1467 GLsizei width, GLsizei height) 1468{ 1469 struct gl_texture_unit *texUnit = 1470 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1471 struct gl_texture_object *texObj = 1472 _mesa_select_tex_object(ctx, texUnit, target); 1473 struct gl_texture_image *texImage = 1474 _mesa_select_tex_image(ctx, texObj, target, level); 1475 struct st_texture_image *stImage = st_texture_image(texImage); 1476 const GLenum texBaseFormat = texImage->_BaseFormat; 1477 struct gl_framebuffer *fb = ctx->ReadBuffer; 1478 struct st_renderbuffer *strb; 1479 struct pipe_context *pipe = ctx->st->pipe; 1480 struct pipe_screen *screen = pipe->screen; 1481 enum pipe_format dest_format, src_format; 1482 GLboolean use_fallback = GL_TRUE; 1483 GLboolean matching_base_formats; 1484 GLuint format_writemask; 1485 struct pipe_surface *dest_surface = NULL; 1486 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1487 1488 /* any rendering in progress must flushed before we grab the fb image */ 1489 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1490 1491 /* make sure finalize_textures has been called? 1492 */ 1493 if (0) st_validate_state(ctx->st); 1494 1495 /* determine if copying depth or color data */ 1496 if (texBaseFormat == GL_DEPTH_COMPONENT || 1497 texBaseFormat == GL_DEPTH_STENCIL) { 1498 strb = st_renderbuffer(fb->_DepthBuffer); 1499 } 1500 else { 1501 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1502 strb = st_renderbuffer(fb->_ColorReadBuffer); 1503 } 1504 1505 if (!strb || !strb->surface || !stImage->pt) { 1506 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1507 return; 1508 } 1509 1510 if (srcX < 0) { 1511 width -= -srcX; 1512 destX += -srcX; 1513 srcX = 0; 1514 } 1515 1516 if (srcY < 0) { 1517 height -= -srcY; 1518 destY += -srcY; 1519 srcY = 0; 1520 } 1521 1522 if (destX < 0) { 1523 width -= -destX; 1524 srcX += -destX; 1525 destX = 0; 1526 } 1527 1528 if (destY < 0) { 1529 height -= -destY; 1530 srcY += -destY; 1531 destY = 0; 1532 } 1533 1534 if (width < 0 || height < 0) 1535 return; 1536 1537 1538 assert(strb); 1539 assert(strb->surface); 1540 assert(stImage->pt); 1541 1542 src_format = strb->surface->format; 1543 dest_format = stImage->pt->format; 1544 1545 /* 1546 * Determine if the src framebuffer and dest texture have the same 1547 * base format. We need this to detect a case such as the framebuffer 1548 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1549 * texture format stores RGBA we need to set A=1 (overriding the 1550 * framebuffer's alpha values). We can't do that with the blit or 1551 * textured-quad paths. 1552 */ 1553 matching_base_formats = 1554 (_mesa_get_format_base_format(strb->Base.Format) == 1555 _mesa_get_format_base_format(texImage->TexFormat)); 1556 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage); 1557 1558 if (ctx->_ImageTransferState == 0x0) { 1559 1560 if (pipe->surface_copy && 1561 matching_base_formats && 1562 src_format == dest_format && 1563 !do_flip) 1564 { 1565 /* use surface_copy() / blit */ 1566 1567 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1568 stImage->face, stImage->level, 1569 destZ, 1570 PIPE_BUFFER_USAGE_GPU_WRITE); 1571 1572 /* for surface_copy(), y=0=top, always */ 1573 pipe->surface_copy(pipe, 1574 /* dest */ 1575 dest_surface, 1576 destX, destY, 1577 /* src */ 1578 strb->surface, 1579 srcX, srcY, 1580 /* size */ 1581 width, height); 1582 use_fallback = GL_FALSE; 1583 } 1584 else if (format_writemask && 1585 texBaseFormat != GL_DEPTH_COMPONENT && 1586 texBaseFormat != GL_DEPTH_STENCIL && 1587 screen->is_format_supported(screen, src_format, 1588 PIPE_TEXTURE_2D, 1589 PIPE_TEXTURE_USAGE_SAMPLER, 1590 0) && 1591 screen->is_format_supported(screen, dest_format, 1592 PIPE_TEXTURE_2D, 1593 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1594 0)) { 1595 /* draw textured quad to do the copy */ 1596 GLint srcY0, srcY1; 1597 1598 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1599 stImage->face, stImage->level, 1600 destZ, 1601 PIPE_BUFFER_USAGE_GPU_WRITE); 1602 1603 if (do_flip) { 1604 srcY1 = strb->Base.Height - srcY - height; 1605 srcY0 = srcY1 + height; 1606 } 1607 else { 1608 srcY0 = srcY; 1609 srcY1 = srcY0 + height; 1610 } 1611 util_blit_pixels_writemask(ctx->st->blit, 1612 strb->surface, 1613 st_renderbuffer_get_sampler_view(strb, pipe), 1614 srcX, srcY0, 1615 srcX + width, srcY1, 1616 dest_surface, 1617 destX, destY, 1618 destX + width, destY + height, 1619 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1620 format_writemask); 1621 use_fallback = GL_FALSE; 1622 } 1623 1624 if (dest_surface) 1625 pipe_surface_reference(&dest_surface, NULL); 1626 } 1627 1628 if (use_fallback) { 1629 /* software fallback */ 1630 fallback_copy_texsubimage(ctx, target, level, 1631 strb, stImage, texBaseFormat, 1632 destX, destY, destZ, 1633 srcX, srcY, width, height); 1634 } 1635} 1636 1637 1638 1639static void 1640st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1641 GLenum internalFormat, 1642 GLint x, GLint y, GLsizei width, GLint border) 1643{ 1644 struct gl_texture_unit *texUnit = 1645 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1646 struct gl_texture_object *texObj = 1647 _mesa_select_tex_object(ctx, texUnit, target); 1648 struct gl_texture_image *texImage = 1649 _mesa_select_tex_image(ctx, texObj, target, level); 1650 1651 /* Setup or redefine the texture object, texture and texture 1652 * image. Don't populate yet. 1653 */ 1654 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1655 width, border, 1656 GL_RGBA, CHAN_TYPE, NULL, 1657 &ctx->DefaultPacking, texObj, texImage); 1658 1659 st_copy_texsubimage(ctx, target, level, 1660 0, 0, 0, /* destX,Y,Z */ 1661 x, y, width, 1); /* src X, Y, size */ 1662} 1663 1664 1665static void 1666st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1667 GLenum internalFormat, 1668 GLint x, GLint y, GLsizei width, GLsizei height, 1669 GLint border) 1670{ 1671 struct gl_texture_unit *texUnit = 1672 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1673 struct gl_texture_object *texObj = 1674 _mesa_select_tex_object(ctx, texUnit, target); 1675 struct gl_texture_image *texImage = 1676 _mesa_select_tex_image(ctx, texObj, target, level); 1677 1678 /* Setup or redefine the texture object, texture and texture 1679 * image. Don't populate yet. 1680 */ 1681 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1682 width, height, border, 1683 GL_RGBA, CHAN_TYPE, NULL, 1684 &ctx->DefaultPacking, texObj, texImage); 1685 1686 st_copy_texsubimage(ctx, target, level, 1687 0, 0, 0, /* destX,Y,Z */ 1688 x, y, width, height); /* src X, Y, size */ 1689} 1690 1691 1692static void 1693st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1694 GLint xoffset, GLint x, GLint y, GLsizei width) 1695{ 1696 const GLint yoffset = 0, zoffset = 0; 1697 const GLsizei height = 1; 1698 st_copy_texsubimage(ctx, target, level, 1699 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1700 x, y, width, height); /* src X, Y, size */ 1701} 1702 1703 1704static void 1705st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1706 GLint xoffset, GLint yoffset, 1707 GLint x, GLint y, GLsizei width, GLsizei height) 1708{ 1709 const GLint zoffset = 0; 1710 st_copy_texsubimage(ctx, target, level, 1711 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1712 x, y, width, height); /* src X, Y, size */ 1713} 1714 1715 1716static void 1717st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1718 GLint xoffset, GLint yoffset, GLint zoffset, 1719 GLint x, GLint y, GLsizei width, GLsizei height) 1720{ 1721 st_copy_texsubimage(ctx, target, level, 1722 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1723 x, y, width, height); /* src X, Y, size */ 1724} 1725 1726 1727static void 1728copy_image_data_to_texture(struct st_context *st, 1729 struct st_texture_object *stObj, 1730 GLuint dstLevel, 1731 struct st_texture_image *stImage) 1732{ 1733 if (stImage->pt) { 1734 /* Copy potentially with the blitter: 1735 */ 1736 st_texture_image_copy(st->pipe, 1737 stObj->pt, dstLevel, /* dest texture, level */ 1738 stImage->pt, /* src texture */ 1739 stImage->face); 1740 1741 pipe_texture_reference(&stImage->pt, NULL); 1742 } 1743 else if (stImage->base.Data) { 1744 /* More straightforward upload. 1745 */ 1746 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1747 PIPE_TRANSFER_WRITE); 1748 1749 st_texture_image_data(st, 1750 stObj->pt, 1751 stImage->face, 1752 dstLevel, 1753 stImage->base.Data, 1754 stImage->base.RowStride * 1755 util_format_get_blocksize(stObj->pt->format), 1756 stImage->base.RowStride * 1757 stImage->base.Height * 1758 util_format_get_blocksize(stObj->pt->format)); 1759 _mesa_align_free(stImage->base.Data); 1760 stImage->base.Data = NULL; 1761 } 1762 1763 pipe_texture_reference(&stImage->pt, stObj->pt); 1764} 1765 1766 1767/** 1768 * Called during state validation. When this function is finished, 1769 * the texture object should be ready for rendering. 1770 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1771 */ 1772GLboolean 1773st_finalize_texture(GLcontext *ctx, 1774 struct pipe_context *pipe, 1775 struct gl_texture_object *tObj, 1776 GLboolean *needFlush) 1777{ 1778 struct st_texture_object *stObj = st_texture_object(tObj); 1779 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1780 GLuint blockSize, face; 1781 struct st_texture_image *firstImage; 1782 1783 *needFlush = GL_FALSE; 1784 1785 if (stObj->base._Complete) { 1786 /* The texture is complete and we know exactly how many mipmap levels 1787 * are present/needed. This is conditional because we may be called 1788 * from the st_generate_mipmap() function when the texture object is 1789 * incomplete. In that case, we'll have set stObj->lastLevel before 1790 * we get here. 1791 */ 1792 if (stObj->base.MinFilter == GL_LINEAR || 1793 stObj->base.MinFilter == GL_NEAREST) 1794 stObj->lastLevel = stObj->base.BaseLevel; 1795 else 1796 stObj->lastLevel = stObj->base._MaxLevel - stObj->base.BaseLevel; 1797 } 1798 1799 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1800 1801 /* If both firstImage and stObj point to a texture which can contain 1802 * all active images, favour firstImage. Note that because of the 1803 * completeness requirement, we know that the image dimensions 1804 * will match. 1805 */ 1806 if (firstImage->pt && 1807 firstImage->pt != stObj->pt && 1808 firstImage->pt->last_level >= stObj->lastLevel) { 1809 pipe_texture_reference(&stObj->pt, firstImage->pt); 1810 } 1811 1812 /* bytes per pixel block (blocks are usually 1x1) */ 1813 blockSize = _mesa_get_format_bytes(firstImage->base.TexFormat); 1814 1815 /* If we already have a gallium texture, check that it matches the texture 1816 * object's format, target, size, num_levels, etc. 1817 */ 1818 if (stObj->pt) { 1819 const enum pipe_format fmt = 1820 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1821 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1822 stObj->pt->format != fmt || 1823 stObj->pt->last_level < stObj->lastLevel || 1824 stObj->pt->width0 != firstImage->base.Width2 || 1825 stObj->pt->height0 != firstImage->base.Height2 || 1826 stObj->pt->depth0 != firstImage->base.Depth2) 1827 { 1828 pipe_texture_reference(&stObj->pt, NULL); 1829 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1830 } 1831 } 1832 1833 /* May need to create a new gallium texture: 1834 */ 1835 if (!stObj->pt) { 1836 const enum pipe_format fmt = 1837 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1838 GLuint usage = default_usage(fmt); 1839 1840 stObj->pt = st_texture_create(ctx->st, 1841 gl_target_to_pipe(stObj->base.Target), 1842 fmt, 1843 stObj->lastLevel, 1844 firstImage->base.Width2, 1845 firstImage->base.Height2, 1846 firstImage->base.Depth2, 1847 usage); 1848 1849 if (!stObj->pt) { 1850 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1851 return GL_FALSE; 1852 } 1853 } 1854 1855 /* Pull in any images not in the object's texture: 1856 */ 1857 for (face = 0; face < nr_faces; face++) { 1858 GLuint level; 1859 for (level = 0; level <= stObj->lastLevel; level++) { 1860 struct st_texture_image *stImage = 1861 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1862 1863 /* Need to import images in main memory or held in other textures. 1864 */ 1865 if (stImage && stObj->pt != stImage->pt) { 1866 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1867 *needFlush = GL_TRUE; 1868 } 1869 } 1870 } 1871 1872 return GL_TRUE; 1873} 1874 1875 1876/** 1877 * Returns pointer to a default/dummy texture. 1878 * This is typically used when the current shader has tex/sample instructions 1879 * but the user has not provided a (any) texture(s). 1880 */ 1881struct gl_texture_object * 1882st_get_default_texture(struct st_context *st) 1883{ 1884 if (!st->default_texture) { 1885 static const GLenum target = GL_TEXTURE_2D; 1886 GLubyte pixels[16][16][4]; 1887 struct gl_texture_object *texObj; 1888 struct gl_texture_image *texImg; 1889 GLuint i, j; 1890 1891 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1892 * when attempting to sample incomplete textures. 1893 */ 1894 for (i = 0; i < 16; i++) { 1895 for (j = 0; j < 16; j++) { 1896 pixels[i][j][0] = 0; 1897 pixels[i][j][1] = 0; 1898 pixels[i][j][2] = 0; 1899 pixels[i][j][3] = 255; 1900 } 1901 } 1902 1903 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1904 1905 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1906 1907 _mesa_init_teximage_fields(st->ctx, target, texImg, 1908 16, 16, 1, 0, /* w, h, d, border */ 1909 GL_RGBA); 1910 1911 st_TexImage(st->ctx, 2, target, 1912 0, GL_RGBA, /* level, intformat */ 1913 16, 16, 1, 0, /* w, h, d, border */ 1914 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1915 &st->ctx->DefaultPacking, 1916 texObj, texImg, 1917 0, 0); 1918 1919 texObj->MinFilter = GL_NEAREST; 1920 texObj->MagFilter = GL_NEAREST; 1921 texObj->_Complete = GL_TRUE; 1922 1923 st->default_texture = texObj; 1924 } 1925 return st->default_texture; 1926} 1927 1928 1929void 1930st_init_texture_functions(struct dd_function_table *functions) 1931{ 1932 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1933 functions->TexImage1D = st_TexImage1D; 1934 functions->TexImage2D = st_TexImage2D; 1935 functions->TexImage3D = st_TexImage3D; 1936 functions->TexSubImage1D = st_TexSubImage1D; 1937 functions->TexSubImage2D = st_TexSubImage2D; 1938 functions->TexSubImage3D = st_TexSubImage3D; 1939 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1940 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1941 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1942 functions->CopyTexImage1D = st_CopyTexImage1D; 1943 functions->CopyTexImage2D = st_CopyTexImage2D; 1944 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1945 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1946 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1947 functions->GenerateMipmap = st_generate_mipmap; 1948 1949 functions->GetTexImage = st_GetTexImage; 1950 1951 /* compressed texture functions */ 1952 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1953 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1954 1955 functions->NewTextureObject = st_NewTextureObject; 1956 functions->NewTextureImage = st_NewTextureImage; 1957 functions->DeleteTexture = st_DeleteTextureObject; 1958 functions->FreeTexImageData = st_FreeTextureImageData; 1959 functions->UpdateTexturePalette = 0; 1960 1961 functions->TextureMemCpy = do_memcpy; 1962 1963 /* XXX Temporary until we can query pipe's texture sizes */ 1964 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1965} 1966