st_cb_texture.c revision c11d582411a999ed40db4c02143dd380113e0ffd
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 pipe_sampler_view_reference(&stObj->sampler_view, NULL); 575 stObj->teximage_realloc = FALSE; 576 } 577 } 578 579 if (width == 0 || height == 0 || depth == 0) { 580 /* stop after freeing old image */ 581 return; 582 } 583 584 if (!stObj->pt) { 585 guess_and_alloc_texture(ctx->st, stObj, stImage); 586 if (!stObj->pt) { 587 /* Probably out of memory. 588 * Try flushing any pending rendering, then retry. 589 */ 590 st_finish(ctx->st); 591 guess_and_alloc_texture(ctx->st, stObj, stImage); 592 if (!stObj->pt) { 593 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 594 return; 595 } 596 } 597 } 598 599 assert(!stImage->pt); 600 601 if (stObj->pt && 602 st_texture_match_image(stObj->pt, &stImage->base, 603 stImage->face, stImage->level)) { 604 605 pipe_texture_reference(&stImage->pt, stObj->pt); 606 assert(stImage->pt); 607 } 608 609 if (!stImage->pt) 610 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 611 612 /* st_CopyTexImage calls this function with pixels == NULL, with 613 * the expectation that the texture will be set up but nothing 614 * more will be done. This is where those calls return: 615 */ 616 if (compressed_src) { 617 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 618 unpack, 619 "glCompressedTexImage"); 620 } 621 else { 622 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 623 format, type, 624 pixels, unpack, "glTexImage"); 625 } 626 627 /* Note: we can't check for pixels==NULL until after we've allocated 628 * memory for the texture. 629 */ 630 631 /* See if we can do texture compression with a blit/render. 632 */ 633 if (!compressed_src && 634 !ctx->Mesa_DXTn && 635 _mesa_is_format_compressed(texImage->TexFormat) && 636 screen->is_format_supported(screen, 637 stImage->pt->format, 638 stImage->pt->target, 639 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 640 if (!pixels) 641 goto done; 642 643 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 644 format, type, pixels, unpack, texImage)) { 645 goto done; 646 } 647 } 648 649 if (stImage->pt) { 650 if (format == GL_DEPTH_COMPONENT && 651 util_format_is_depth_and_stencil(stImage->pt->format)) 652 transfer_usage = PIPE_TRANSFER_READ_WRITE; 653 else 654 transfer_usage = PIPE_TRANSFER_WRITE; 655 656 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 657 transfer_usage, 0, 0, 658 stImage->base.Width, 659 stImage->base.Height); 660 if(stImage->transfer) 661 dstRowStride = stImage->transfer->stride; 662 } 663 else { 664 /* Allocate regular memory and store the image there temporarily. */ 665 if (_mesa_is_format_compressed(texImage->TexFormat)) { 666 sizeInBytes = _mesa_format_image_size(texImage->TexFormat, 667 texImage->Width, 668 texImage->Height, 669 texImage->Depth); 670 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width); 671 assert(dims != 3); 672 } 673 else { 674 dstRowStride = postConvWidth * texelBytes; 675 sizeInBytes = depth * dstRowStride * postConvHeight; 676 } 677 678 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 679 } 680 681 if (!texImage->Data) { 682 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 683 return; 684 } 685 686 if (!pixels) 687 goto done; 688 689 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 690 width, height, depth, width * texelBytes, dstRowStride); 691 692 /* Copy data. Would like to know when it's ok for us to eg. use 693 * the blitter to copy. Or, use the hardware to do the format 694 * conversion and copy: 695 */ 696 if (compressed_src) { 697 const GLuint srcImageStride = _mesa_format_row_stride(texImage->TexFormat, width); 698 if(dstRowStride == srcImageStride) 699 memcpy(texImage->Data, pixels, imageSize); 700 else 701 { 702 char *dst = texImage->Data; 703 const char *src = pixels; 704 GLuint i, bw, bh, lines; 705 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh); 706 lines = (height + bh - 1) / bh; 707 708 for(i = 0; i < lines; ++i) 709 { 710 memcpy(dst, src, srcImageStride); 711 dst += dstRowStride; 712 src += srcImageStride; 713 } 714 } 715 } 716 else { 717 const GLuint srcImageStride = 718 _mesa_image_image_stride(unpack, width, height, format, type); 719 GLint i; 720 const GLubyte *src = (const GLubyte *) pixels; 721 722 for (i = 0; i < depth; i++) { 723 if (!_mesa_texstore(ctx, dims, 724 texImage->_BaseFormat, 725 texImage->TexFormat, 726 texImage->Data, 727 0, 0, 0, /* dstX/Y/Zoffset */ 728 dstRowStride, 729 texImage->ImageOffsets, 730 width, height, 1, 731 format, type, src, unpack)) { 732 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 733 } 734 735 if (stImage->pt && i + 1 < depth) { 736 /* unmap this slice */ 737 st_texture_image_unmap(ctx->st, stImage); 738 /* map next slice of 3D texture */ 739 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 740 transfer_usage, 0, 0, 741 stImage->base.Width, 742 stImage->base.Height); 743 src += srcImageStride; 744 } 745 } 746 } 747 748done: 749 _mesa_unmap_teximage_pbo(ctx, unpack); 750 751 if (stImage->pt && texImage->Data) { 752 st_texture_image_unmap(ctx->st, stImage); 753 texImage->Data = NULL; 754 } 755} 756 757 758static void 759st_TexImage3D(GLcontext * ctx, 760 GLenum target, GLint level, 761 GLint internalFormat, 762 GLint width, GLint height, GLint depth, 763 GLint border, 764 GLenum format, GLenum type, const void *pixels, 765 const struct gl_pixelstore_attrib *unpack, 766 struct gl_texture_object *texObj, 767 struct gl_texture_image *texImage) 768{ 769 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 770 border, format, type, pixels, unpack, texObj, texImage, 771 0, GL_FALSE); 772} 773 774 775static void 776st_TexImage2D(GLcontext * ctx, 777 GLenum target, GLint level, 778 GLint internalFormat, 779 GLint width, GLint height, GLint border, 780 GLenum format, GLenum type, const void *pixels, 781 const struct gl_pixelstore_attrib *unpack, 782 struct gl_texture_object *texObj, 783 struct gl_texture_image *texImage) 784{ 785 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 786 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 787} 788 789 790static void 791st_TexImage1D(GLcontext * ctx, 792 GLenum target, GLint level, 793 GLint internalFormat, 794 GLint width, GLint border, 795 GLenum format, GLenum type, const void *pixels, 796 const struct gl_pixelstore_attrib *unpack, 797 struct gl_texture_object *texObj, 798 struct gl_texture_image *texImage) 799{ 800 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 801 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 802} 803 804 805static void 806st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 807 GLint internalFormat, 808 GLint width, GLint height, GLint border, 809 GLsizei imageSize, const GLvoid *data, 810 struct gl_texture_object *texObj, 811 struct gl_texture_image *texImage) 812{ 813 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 814 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 815} 816 817 818 819/** 820 * glGetTexImage() helper: decompress a compressed texture by rendering 821 * a textured quad. Store the results in the user's buffer. 822 */ 823static void 824decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 825 GLenum format, GLenum type, GLvoid *pixels, 826 struct gl_texture_object *texObj, 827 struct gl_texture_image *texImage) 828{ 829 struct pipe_context *pipe = ctx->st->pipe; 830 struct pipe_screen *screen = pipe->screen; 831 struct st_texture_image *stImage = st_texture_image(texImage); 832 struct st_texture_object *stObj = st_texture_object(texObj); 833 struct pipe_sampler_view *src_view = st_get_stobj_sampler_view(stObj); 834 const GLuint width = texImage->Width; 835 const GLuint height = texImage->Height; 836 struct pipe_surface *dst_surface; 837 struct pipe_texture *dst_texture; 838 struct pipe_transfer *tex_xfer; 839 840 /* create temp / dest surface */ 841 if (!util_create_rgba_surface(screen, width, height, 842 &dst_texture, &dst_surface)) { 843 _mesa_problem(ctx, "util_create_rgba_surface() failed " 844 "in decompress_with_blit()"); 845 return; 846 } 847 848 /* blit/render/decompress */ 849 util_blit_pixels_tex(ctx->st->blit, 850 src_view, /* pipe_texture (src) */ 851 0, 0, /* src x0, y0 */ 852 width, height, /* src x1, y1 */ 853 dst_surface, /* pipe_surface (dst) */ 854 0, 0, /* dst x0, y0 */ 855 width, height, /* dst x1, y1 */ 856 0.0, /* z */ 857 PIPE_TEX_MIPFILTER_NEAREST); 858 859 /* map the dst_surface so we can read from it */ 860 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 861 dst_texture, 0, 0, 0, 862 PIPE_TRANSFER_READ, 863 0, 0, width, height); 864 865 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 866 867 /* copy/pack data into user buffer */ 868 if (st_equal_formats(stImage->pt->format, format, type)) { 869 /* memcpy */ 870 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); 871 ubyte *map = pipe->transfer_map(pipe, tex_xfer); 872 GLuint row; 873 for (row = 0; row < height; row++) { 874 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 875 height, format, type, row, 0); 876 memcpy(dest, map, bytesPerRow); 877 map += tex_xfer->stride; 878 } 879 pipe->transfer_unmap(pipe, tex_xfer); 880 } 881 else { 882 /* format translation via floats */ 883 GLuint row; 884 for (row = 0; row < height; row++) { 885 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 886 GLfloat rgba[4 * MAX_WIDTH]; 887 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 888 height, format, type, row, 0); 889 890 if (ST_DEBUG & DEBUG_FALLBACK) 891 debug_printf("%s: fallback format translation\n", __FUNCTION__); 892 893 /* get float[4] rgba row from surface */ 894 pipe_get_tile_rgba(pipe, tex_xfer, 0, row, width, 1, rgba); 895 896 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 897 type, dest, &ctx->Pack, transferOps); 898 } 899 } 900 901 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 902 903 pipe->tex_transfer_destroy(pipe, tex_xfer); 904 905 /* destroy the temp / dest surface */ 906 util_destroy_rgba_surface(dst_texture, dst_surface); 907} 908 909 910 911/** 912 * Need to map texture image into memory before copying image data, 913 * then unmap it. 914 */ 915static void 916st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 917 GLenum format, GLenum type, GLvoid * pixels, 918 struct gl_texture_object *texObj, 919 struct gl_texture_image *texImage, GLboolean compressed_dst) 920{ 921 struct st_texture_image *stImage = st_texture_image(texImage); 922 const GLuint dstImageStride = 923 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 924 format, type); 925 GLuint depth, i; 926 GLubyte *dest; 927 928 if (stImage->pt && 929 util_format_is_compressed(stImage->pt->format) && 930 !compressed_dst) { 931 /* Need to decompress the texture. 932 * We'll do this by rendering a textured quad. 933 * Note that we only expect RGBA formats (no Z/depth formats). 934 */ 935 decompress_with_blit(ctx, target, level, format, type, pixels, 936 texObj, texImage); 937 return; 938 } 939 940 /* Map */ 941 if (stImage->pt) { 942 /* Image is stored in hardware format in a buffer managed by the 943 * kernel. Need to explicitly map and unmap it. 944 */ 945 unsigned face = _mesa_tex_target_to_face(target); 946 947 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 948 PIPE_TRANSFER_READ); 949 950 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 951 PIPE_TRANSFER_READ, 0, 0, 952 stImage->base.Width, 953 stImage->base.Height); 954 texImage->RowStride = stImage->transfer->stride / util_format_get_blocksize(stImage->pt->format); 955 } 956 else { 957 /* Otherwise, the image should actually be stored in 958 * texImage->Data. This is pretty confusing for 959 * everybody, I'd much prefer to separate the two functions of 960 * texImage->Data - storage for texture images in main memory 961 * and access (ie mappings) of images. In other words, we'd 962 * create a new texImage->Map field and leave Data simply for 963 * storage. 964 */ 965 assert(texImage->Data); 966 } 967 968 depth = texImage->Depth; 969 texImage->Depth = 1; 970 971 dest = (GLubyte *) pixels; 972 973 for (i = 0; i < depth; i++) { 974 if (compressed_dst) { 975 _mesa_get_compressed_teximage(ctx, target, level, dest, 976 texObj, texImage); 977 } 978 else { 979 _mesa_get_teximage(ctx, target, level, format, type, dest, 980 texObj, texImage); 981 } 982 983 if (stImage->pt && i + 1 < depth) { 984 /* unmap this slice */ 985 st_texture_image_unmap(ctx->st, stImage); 986 /* map next slice of 3D texture */ 987 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 988 PIPE_TRANSFER_READ, 0, 0, 989 stImage->base.Width, 990 stImage->base.Height); 991 dest += dstImageStride; 992 } 993 } 994 995 texImage->Depth = depth; 996 997 /* Unmap */ 998 if (stImage->pt) { 999 st_texture_image_unmap(ctx->st, stImage); 1000 texImage->Data = NULL; 1001 } 1002} 1003 1004 1005static void 1006st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 1007 GLenum format, GLenum type, GLvoid * pixels, 1008 struct gl_texture_object *texObj, 1009 struct gl_texture_image *texImage) 1010{ 1011 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 1012 GL_FALSE); 1013} 1014 1015 1016static void 1017st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 1018 GLvoid *pixels, 1019 struct gl_texture_object *texObj, 1020 struct gl_texture_image *texImage) 1021{ 1022 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1023 GL_TRUE); 1024} 1025 1026 1027 1028static void 1029st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1030 GLint xoffset, GLint yoffset, GLint zoffset, 1031 GLint width, GLint height, GLint depth, 1032 GLenum format, GLenum type, const void *pixels, 1033 const struct gl_pixelstore_attrib *packing, 1034 struct gl_texture_object *texObj, 1035 struct gl_texture_image *texImage) 1036{ 1037 struct pipe_screen *screen = ctx->st->pipe->screen; 1038 struct st_texture_image *stImage = st_texture_image(texImage); 1039 GLuint dstRowStride; 1040 const GLuint srcImageStride = 1041 _mesa_image_image_stride(packing, width, height, format, type); 1042 GLint i; 1043 const GLubyte *src; 1044 /* init to silence warning only: */ 1045 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1046 1047 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1048 _mesa_lookup_enum_by_nr(target), 1049 level, xoffset, yoffset, width, height); 1050 1051 pixels = 1052 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1053 type, pixels, packing, "glTexSubImage2D"); 1054 if (!pixels) 1055 return; 1056 1057 /* See if we can do texture compression with a blit/render. 1058 */ 1059 if (!ctx->Mesa_DXTn && 1060 _mesa_is_format_compressed(texImage->TexFormat) && 1061 screen->is_format_supported(screen, 1062 stImage->pt->format, 1063 stImage->pt->target, 1064 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1065 if (compress_with_blit(ctx, target, level, 1066 xoffset, yoffset, zoffset, 1067 width, height, depth, 1068 format, type, pixels, packing, texImage)) { 1069 goto done; 1070 } 1071 } 1072 1073 /* Map buffer if necessary. Need to lock to prevent other contexts 1074 * from uploading the buffer under us. 1075 */ 1076 if (stImage->pt) { 1077 unsigned face = _mesa_tex_target_to_face(target); 1078 1079 if (format == GL_DEPTH_COMPONENT && 1080 util_format_is_depth_and_stencil(stImage->pt->format)) 1081 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1082 else 1083 transfer_usage = PIPE_TRANSFER_WRITE; 1084 1085 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1086 transfer_usage); 1087 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1088 transfer_usage, 1089 xoffset, yoffset, 1090 width, height); 1091 } 1092 1093 if (!texImage->Data) { 1094 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1095 goto done; 1096 } 1097 1098 src = (const GLubyte *) pixels; 1099 dstRowStride = stImage->transfer->stride; 1100 1101 for (i = 0; i < depth; i++) { 1102 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat, 1103 texImage->TexFormat, 1104 texImage->Data, 1105 0, 0, 0, 1106 dstRowStride, 1107 texImage->ImageOffsets, 1108 width, height, 1, 1109 format, type, src, packing)) { 1110 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1111 } 1112 1113 if (stImage->pt && i + 1 < depth) { 1114 /* unmap this slice */ 1115 st_texture_image_unmap(ctx->st, stImage); 1116 /* map next slice of 3D texture */ 1117 texImage->Data = st_texture_image_map(ctx->st, stImage, 1118 zoffset + i + 1, 1119 transfer_usage, 1120 xoffset, yoffset, 1121 width, height); 1122 src += srcImageStride; 1123 } 1124 } 1125 1126done: 1127 _mesa_unmap_teximage_pbo(ctx, packing); 1128 1129 if (stImage->pt && texImage->Data) { 1130 st_texture_image_unmap(ctx->st, stImage); 1131 texImage->Data = NULL; 1132 } 1133} 1134 1135 1136 1137static void 1138st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1139 GLint xoffset, GLint yoffset, GLint zoffset, 1140 GLsizei width, GLsizei height, GLsizei depth, 1141 GLenum format, GLenum type, const GLvoid *pixels, 1142 const struct gl_pixelstore_attrib *packing, 1143 struct gl_texture_object *texObj, 1144 struct gl_texture_image *texImage) 1145{ 1146 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1147 width, height, depth, format, type, 1148 pixels, packing, texObj, texImage); 1149} 1150 1151 1152static void 1153st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1154 GLint xoffset, GLint yoffset, 1155 GLsizei width, GLsizei height, 1156 GLenum format, GLenum type, const GLvoid * pixels, 1157 const struct gl_pixelstore_attrib *packing, 1158 struct gl_texture_object *texObj, 1159 struct gl_texture_image *texImage) 1160{ 1161 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1162 width, height, 1, format, type, 1163 pixels, packing, texObj, texImage); 1164} 1165 1166 1167static void 1168st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1169 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1170 const GLvoid * pixels, 1171 const struct gl_pixelstore_attrib *packing, 1172 struct gl_texture_object *texObj, 1173 struct gl_texture_image *texImage) 1174{ 1175 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1176 format, type, pixels, packing, texObj, texImage); 1177} 1178 1179 1180static void 1181st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1182 GLint xoffset, GLsizei width, 1183 GLenum format, 1184 GLsizei imageSize, const GLvoid *data, 1185 struct gl_texture_object *texObj, 1186 struct gl_texture_image *texImage) 1187{ 1188 assert(0); 1189} 1190 1191 1192static void 1193st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1194 GLint xoffset, GLint yoffset, 1195 GLsizei width, GLint height, 1196 GLenum format, 1197 GLsizei imageSize, const GLvoid *data, 1198 struct gl_texture_object *texObj, 1199 struct gl_texture_image *texImage) 1200{ 1201 struct st_texture_image *stImage = st_texture_image(texImage); 1202 int srcBlockStride; 1203 int dstBlockStride; 1204 int y; 1205 enum pipe_format pformat= stImage->pt->format; 1206 1207 if (stImage->pt) { 1208 unsigned face = _mesa_tex_target_to_face(target); 1209 1210 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1211 PIPE_TRANSFER_WRITE); 1212 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1213 PIPE_TRANSFER_WRITE, 1214 xoffset, yoffset, 1215 width, height); 1216 1217 srcBlockStride = util_format_get_stride(pformat, width); 1218 dstBlockStride = stImage->transfer->stride; 1219 } else { 1220 assert(stImage->pt); 1221 /* TODO find good values for block and strides */ 1222 /* TODO also adjust texImage->data for yoffset/xoffset */ 1223 return; 1224 } 1225 1226 if (!texImage->Data) { 1227 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1228 return; 1229 } 1230 1231 assert(xoffset % util_format_get_blockwidth(pformat) == 0); 1232 assert(yoffset % util_format_get_blockheight(pformat) == 0); 1233 assert(width % util_format_get_blockwidth(pformat) == 0); 1234 assert(height % util_format_get_blockheight(pformat) == 0); 1235 1236 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) { 1237 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1238 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y); 1239 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y); 1240 memcpy(dst, src, util_format_get_stride(pformat, width)); 1241 } 1242 1243 if (stImage->pt) { 1244 st_texture_image_unmap(ctx->st, stImage); 1245 texImage->Data = NULL; 1246 } 1247} 1248 1249 1250static void 1251st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1252 GLint xoffset, GLint yoffset, GLint zoffset, 1253 GLsizei width, GLint height, GLint depth, 1254 GLenum format, 1255 GLsizei imageSize, const GLvoid *data, 1256 struct gl_texture_object *texObj, 1257 struct gl_texture_image *texImage) 1258{ 1259 assert(0); 1260} 1261 1262 1263 1264/** 1265 * Do a CopyTexSubImage operation using a read transfer from the source, 1266 * a write transfer to the destination and get_tile()/put_tile() to access 1267 * the pixels/texels. 1268 * 1269 * Note: srcY=0=TOP of renderbuffer 1270 */ 1271static void 1272fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1273 struct st_renderbuffer *strb, 1274 struct st_texture_image *stImage, 1275 GLenum baseFormat, 1276 GLint destX, GLint destY, GLint destZ, 1277 GLint srcX, GLint srcY, 1278 GLsizei width, GLsizei height) 1279{ 1280 struct pipe_context *pipe = ctx->st->pipe; 1281 struct pipe_transfer *src_trans; 1282 GLvoid *texDest; 1283 enum pipe_transfer_usage transfer_usage; 1284 1285 if (ST_DEBUG & DEBUG_FALLBACK) 1286 debug_printf("%s: fallback processing\n", __FUNCTION__); 1287 1288 assert(width <= MAX_WIDTH); 1289 1290 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1291 srcY = strb->Base.Height - srcY - height; 1292 } 1293 1294 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1295 strb->texture, 1296 0, 0, 0, 1297 PIPE_TRANSFER_READ, 1298 srcX, srcY, 1299 width, height); 1300 1301 if ((baseFormat == GL_DEPTH_COMPONENT || 1302 baseFormat == GL_DEPTH_STENCIL) && 1303 util_format_is_depth_and_stencil(stImage->pt->format)) 1304 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1305 else 1306 transfer_usage = PIPE_TRANSFER_WRITE; 1307 1308 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1309 transfer_usage); 1310 1311 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1312 destX, destY, width, height); 1313 1314 if (baseFormat == GL_DEPTH_COMPONENT || 1315 baseFormat == GL_DEPTH_STENCIL) { 1316 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1317 ctx->Pixel.DepthBias != 0.0F); 1318 GLint row, yStep; 1319 1320 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1321 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1322 srcY = height - 1; 1323 yStep = -1; 1324 } 1325 else { 1326 srcY = 0; 1327 yStep = 1; 1328 } 1329 1330 /* To avoid a large temp memory allocation, do copy row by row */ 1331 for (row = 0; row < height; row++, srcY += yStep) { 1332 uint data[MAX_WIDTH]; 1333 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data); 1334 if (scaleOrBias) { 1335 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1336 } 1337 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data); 1338 } 1339 } 1340 else { 1341 /* RGBA format */ 1342 GLfloat *tempSrc = 1343 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); 1344 1345 if (tempSrc && texDest) { 1346 const GLint dims = 2; 1347 const GLint dstRowStride = stImage->transfer->stride; 1348 struct gl_texture_image *texImage = &stImage->base; 1349 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1350 1351 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1352 unpack.Invert = GL_TRUE; 1353 } 1354 1355 /* get float/RGBA image from framebuffer */ 1356 /* XXX this usually involves a lot of int/float conversion. 1357 * try to avoid that someday. 1358 */ 1359 pipe_get_tile_rgba(pipe, src_trans, 0, 0, width, height, tempSrc); 1360 1361 /* Store into texture memory. 1362 * Note that this does some special things such as pixel transfer 1363 * ops and format conversion. In particular, if the dest tex format 1364 * is actually RGBA but the user created the texture as GL_RGB we 1365 * need to fill-in/override the alpha channel with 1.0. 1366 */ 1367 _mesa_texstore(ctx, dims, 1368 texImage->_BaseFormat, 1369 texImage->TexFormat, 1370 texDest, 1371 0, 0, 0, 1372 dstRowStride, 1373 texImage->ImageOffsets, 1374 width, height, 1, 1375 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1376 &unpack); 1377 } 1378 else { 1379 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1380 } 1381 1382 if (tempSrc) 1383 free(tempSrc); 1384 } 1385 1386 st_texture_image_unmap(ctx->st, stImage); 1387 pipe->tex_transfer_destroy(pipe, src_trans); 1388} 1389 1390 1391 1392/** 1393 * If the format of the src renderbuffer and the format of the dest 1394 * texture are compatible (in terms of blitting), return a TGSI writemask 1395 * to be used during the blit. 1396 * If the src/dest are incompatible, return 0. 1397 */ 1398static unsigned 1399compatible_src_dst_formats(GLcontext *ctx, 1400 const struct gl_renderbuffer *src, 1401 const struct gl_texture_image *dst) 1402{ 1403 /* Get logical base formats for the src and dest. 1404 * That is, use the user-requested formats and not the actual, device- 1405 * chosen formats. 1406 * For example, the user may have requested an A8 texture but the 1407 * driver may actually be using an RGBA texture format. When we 1408 * copy/blit to that texture, we only want to copy the Alpha channel 1409 * and not the RGB channels. 1410 * 1411 * Similarly, when the src FBO was created an RGB format may have been 1412 * requested but the driver actually chose an RGBA format. In that case, 1413 * we don't want to copy the undefined Alpha channel to the dest texture 1414 * (it should be 1.0). 1415 */ 1416 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat); 1417 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat); 1418 1419 /** 1420 * XXX when we have red-only and red/green renderbuffers we'll need 1421 * to add more cases here (or implement a general-purpose routine that 1422 * queries the existance of the R,G,B,A channels in the src and dest). 1423 */ 1424 if (srcFormat == dstFormat) { 1425 /* This is the same as matching_base_formats, which should 1426 * always pass, as it did previously. 1427 */ 1428 return TGSI_WRITEMASK_XYZW; 1429 } 1430 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) { 1431 /* Make sure that A in the dest is 1. The actual src format 1432 * may be RGBA and have undefined A values. 1433 */ 1434 return TGSI_WRITEMASK_XYZ; 1435 } 1436 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) { 1437 /* Make sure that A in the dest is 1. The actual dst format 1438 * may be RGBA and will need A=1 to provide proper alpha values 1439 * when sampled later. 1440 */ 1441 return TGSI_WRITEMASK_XYZ; 1442 } 1443 else { 1444 if (ST_DEBUG & DEBUG_FALLBACK) 1445 debug_printf("%s failed for src %s, dst %s\n", 1446 __FUNCTION__, 1447 _mesa_lookup_enum_by_nr(srcFormat), 1448 _mesa_lookup_enum_by_nr(dstFormat)); 1449 1450 /* Otherwise fail. 1451 */ 1452 return 0; 1453 } 1454} 1455 1456 1457 1458/** 1459 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1460 * Note that the region to copy has already been clipped so we know we 1461 * won't read from outside the source renderbuffer's bounds. 1462 * 1463 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1464 */ 1465static void 1466st_copy_texsubimage(GLcontext *ctx, 1467 GLenum target, GLint level, 1468 GLint destX, GLint destY, GLint destZ, 1469 GLint srcX, GLint srcY, 1470 GLsizei width, GLsizei height) 1471{ 1472 struct gl_texture_unit *texUnit = 1473 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1474 struct gl_texture_object *texObj = 1475 _mesa_select_tex_object(ctx, texUnit, target); 1476 struct gl_texture_image *texImage = 1477 _mesa_select_tex_image(ctx, texObj, target, level); 1478 struct st_texture_image *stImage = st_texture_image(texImage); 1479 const GLenum texBaseFormat = texImage->_BaseFormat; 1480 struct gl_framebuffer *fb = ctx->ReadBuffer; 1481 struct st_renderbuffer *strb; 1482 struct pipe_context *pipe = ctx->st->pipe; 1483 struct pipe_screen *screen = pipe->screen; 1484 enum pipe_format dest_format, src_format; 1485 GLboolean use_fallback = GL_TRUE; 1486 GLboolean matching_base_formats; 1487 GLuint format_writemask; 1488 struct pipe_surface *dest_surface = NULL; 1489 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1490 1491 /* any rendering in progress must flushed before we grab the fb image */ 1492 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1493 1494 /* make sure finalize_textures has been called? 1495 */ 1496 if (0) st_validate_state(ctx->st); 1497 1498 /* determine if copying depth or color data */ 1499 if (texBaseFormat == GL_DEPTH_COMPONENT || 1500 texBaseFormat == GL_DEPTH_STENCIL) { 1501 strb = st_renderbuffer(fb->_DepthBuffer); 1502 } 1503 else { 1504 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1505 strb = st_renderbuffer(fb->_ColorReadBuffer); 1506 } 1507 1508 if (!strb || !strb->surface || !stImage->pt) { 1509 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1510 return; 1511 } 1512 1513 if (srcX < 0) { 1514 width -= -srcX; 1515 destX += -srcX; 1516 srcX = 0; 1517 } 1518 1519 if (srcY < 0) { 1520 height -= -srcY; 1521 destY += -srcY; 1522 srcY = 0; 1523 } 1524 1525 if (destX < 0) { 1526 width -= -destX; 1527 srcX += -destX; 1528 destX = 0; 1529 } 1530 1531 if (destY < 0) { 1532 height -= -destY; 1533 srcY += -destY; 1534 destY = 0; 1535 } 1536 1537 if (width < 0 || height < 0) 1538 return; 1539 1540 1541 assert(strb); 1542 assert(strb->surface); 1543 assert(stImage->pt); 1544 1545 src_format = strb->surface->format; 1546 dest_format = stImage->pt->format; 1547 1548 /* 1549 * Determine if the src framebuffer and dest texture have the same 1550 * base format. We need this to detect a case such as the framebuffer 1551 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1552 * texture format stores RGBA we need to set A=1 (overriding the 1553 * framebuffer's alpha values). We can't do that with the blit or 1554 * textured-quad paths. 1555 */ 1556 matching_base_formats = 1557 (_mesa_get_format_base_format(strb->Base.Format) == 1558 _mesa_get_format_base_format(texImage->TexFormat)); 1559 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage); 1560 1561 if (ctx->_ImageTransferState == 0x0) { 1562 1563 if (matching_base_formats && 1564 src_format == dest_format && 1565 !do_flip) 1566 { 1567 /* use surface_copy() / blit */ 1568 1569 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1570 stImage->face, stImage->level, 1571 destZ, 1572 PIPE_BUFFER_USAGE_GPU_WRITE); 1573 1574 /* for surface_copy(), y=0=top, always */ 1575 pipe->surface_copy(pipe, 1576 /* dest */ 1577 dest_surface, 1578 destX, destY, 1579 /* src */ 1580 strb->surface, 1581 srcX, srcY, 1582 /* size */ 1583 width, height); 1584 use_fallback = GL_FALSE; 1585 } 1586 else if (format_writemask && 1587 texBaseFormat != GL_DEPTH_COMPONENT && 1588 texBaseFormat != GL_DEPTH_STENCIL && 1589 screen->is_format_supported(screen, src_format, 1590 PIPE_TEXTURE_2D, 1591 PIPE_TEXTURE_USAGE_SAMPLER, 1592 0) && 1593 screen->is_format_supported(screen, dest_format, 1594 PIPE_TEXTURE_2D, 1595 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1596 0)) { 1597 /* draw textured quad to do the copy */ 1598 GLint srcY0, srcY1; 1599 1600 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1601 stImage->face, stImage->level, 1602 destZ, 1603 PIPE_BUFFER_USAGE_GPU_WRITE); 1604 1605 if (do_flip) { 1606 srcY1 = strb->Base.Height - srcY - height; 1607 srcY0 = srcY1 + height; 1608 } 1609 else { 1610 srcY0 = srcY; 1611 srcY1 = srcY0 + height; 1612 } 1613 util_blit_pixels_writemask(ctx->st->blit, 1614 strb->surface, 1615 st_renderbuffer_get_sampler_view(strb, pipe), 1616 srcX, srcY0, 1617 srcX + width, srcY1, 1618 dest_surface, 1619 destX, destY, 1620 destX + width, destY + height, 1621 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1622 format_writemask); 1623 use_fallback = GL_FALSE; 1624 } 1625 1626 if (dest_surface) 1627 pipe_surface_reference(&dest_surface, NULL); 1628 } 1629 1630 if (use_fallback) { 1631 /* software fallback */ 1632 fallback_copy_texsubimage(ctx, target, level, 1633 strb, stImage, texBaseFormat, 1634 destX, destY, destZ, 1635 srcX, srcY, width, height); 1636 } 1637} 1638 1639 1640 1641static void 1642st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1643 GLenum internalFormat, 1644 GLint x, GLint y, GLsizei width, GLint border) 1645{ 1646 struct gl_texture_unit *texUnit = 1647 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1648 struct gl_texture_object *texObj = 1649 _mesa_select_tex_object(ctx, texUnit, target); 1650 struct gl_texture_image *texImage = 1651 _mesa_select_tex_image(ctx, texObj, target, level); 1652 1653 /* Setup or redefine the texture object, texture and texture 1654 * image. Don't populate yet. 1655 */ 1656 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1657 width, border, 1658 GL_RGBA, CHAN_TYPE, NULL, 1659 &ctx->DefaultPacking, texObj, texImage); 1660 1661 st_copy_texsubimage(ctx, target, level, 1662 0, 0, 0, /* destX,Y,Z */ 1663 x, y, width, 1); /* src X, Y, size */ 1664} 1665 1666 1667static void 1668st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1669 GLenum internalFormat, 1670 GLint x, GLint y, GLsizei width, GLsizei height, 1671 GLint border) 1672{ 1673 struct gl_texture_unit *texUnit = 1674 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1675 struct gl_texture_object *texObj = 1676 _mesa_select_tex_object(ctx, texUnit, target); 1677 struct gl_texture_image *texImage = 1678 _mesa_select_tex_image(ctx, texObj, target, level); 1679 1680 /* Setup or redefine the texture object, texture and texture 1681 * image. Don't populate yet. 1682 */ 1683 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1684 width, height, border, 1685 GL_RGBA, CHAN_TYPE, NULL, 1686 &ctx->DefaultPacking, texObj, texImage); 1687 1688 st_copy_texsubimage(ctx, target, level, 1689 0, 0, 0, /* destX,Y,Z */ 1690 x, y, width, height); /* src X, Y, size */ 1691} 1692 1693 1694static void 1695st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1696 GLint xoffset, GLint x, GLint y, GLsizei width) 1697{ 1698 const GLint yoffset = 0, zoffset = 0; 1699 const GLsizei height = 1; 1700 st_copy_texsubimage(ctx, target, level, 1701 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1702 x, y, width, height); /* src X, Y, size */ 1703} 1704 1705 1706static void 1707st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1708 GLint xoffset, GLint yoffset, 1709 GLint x, GLint y, GLsizei width, GLsizei height) 1710{ 1711 const GLint zoffset = 0; 1712 st_copy_texsubimage(ctx, target, level, 1713 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1714 x, y, width, height); /* src X, Y, size */ 1715} 1716 1717 1718static void 1719st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1720 GLint xoffset, GLint yoffset, GLint zoffset, 1721 GLint x, GLint y, GLsizei width, GLsizei height) 1722{ 1723 st_copy_texsubimage(ctx, target, level, 1724 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1725 x, y, width, height); /* src X, Y, size */ 1726} 1727 1728 1729static void 1730copy_image_data_to_texture(struct st_context *st, 1731 struct st_texture_object *stObj, 1732 GLuint dstLevel, 1733 struct st_texture_image *stImage) 1734{ 1735 if (stImage->pt) { 1736 /* Copy potentially with the blitter: 1737 */ 1738 st_texture_image_copy(st->pipe, 1739 stObj->pt, dstLevel, /* dest texture, level */ 1740 stImage->pt, /* src texture */ 1741 stImage->face); 1742 1743 pipe_texture_reference(&stImage->pt, NULL); 1744 } 1745 else if (stImage->base.Data) { 1746 /* More straightforward upload. 1747 */ 1748 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1749 PIPE_TRANSFER_WRITE); 1750 1751 st_texture_image_data(st, 1752 stObj->pt, 1753 stImage->face, 1754 dstLevel, 1755 stImage->base.Data, 1756 stImage->base.RowStride * 1757 util_format_get_blocksize(stObj->pt->format), 1758 stImage->base.RowStride * 1759 stImage->base.Height * 1760 util_format_get_blocksize(stObj->pt->format)); 1761 _mesa_align_free(stImage->base.Data); 1762 stImage->base.Data = NULL; 1763 } 1764 1765 pipe_texture_reference(&stImage->pt, stObj->pt); 1766} 1767 1768 1769/** 1770 * Called during state validation. When this function is finished, 1771 * the texture object should be ready for rendering. 1772 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1773 */ 1774GLboolean 1775st_finalize_texture(GLcontext *ctx, 1776 struct pipe_context *pipe, 1777 struct gl_texture_object *tObj, 1778 GLboolean *needFlush) 1779{ 1780 struct st_texture_object *stObj = st_texture_object(tObj); 1781 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1782 GLuint blockSize, face; 1783 struct st_texture_image *firstImage; 1784 1785 *needFlush = GL_FALSE; 1786 1787 if (stObj->base._Complete) { 1788 /* The texture is complete and we know exactly how many mipmap levels 1789 * are present/needed. This is conditional because we may be called 1790 * from the st_generate_mipmap() function when the texture object is 1791 * incomplete. In that case, we'll have set stObj->lastLevel before 1792 * we get here. 1793 */ 1794 if (stObj->base.MinFilter == GL_LINEAR || 1795 stObj->base.MinFilter == GL_NEAREST) 1796 stObj->lastLevel = stObj->base.BaseLevel; 1797 else 1798 stObj->lastLevel = stObj->base._MaxLevel - stObj->base.BaseLevel; 1799 } 1800 1801 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1802 1803 /* If both firstImage and stObj point to a texture which can contain 1804 * all active images, favour firstImage. Note that because of the 1805 * completeness requirement, we know that the image dimensions 1806 * will match. 1807 */ 1808 if (firstImage->pt && 1809 firstImage->pt != stObj->pt && 1810 firstImage->pt->last_level >= stObj->lastLevel) { 1811 pipe_texture_reference(&stObj->pt, firstImage->pt); 1812 pipe_sampler_view_reference(&stObj->sampler_view, NULL); 1813 } 1814 1815 /* bytes per pixel block (blocks are usually 1x1) */ 1816 blockSize = _mesa_get_format_bytes(firstImage->base.TexFormat); 1817 1818 /* If we already have a gallium texture, check that it matches the texture 1819 * object's format, target, size, num_levels, etc. 1820 */ 1821 if (stObj->pt) { 1822 const enum pipe_format fmt = 1823 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1824 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1825 stObj->pt->format != fmt || 1826 stObj->pt->last_level < stObj->lastLevel || 1827 stObj->pt->width0 != firstImage->base.Width2 || 1828 stObj->pt->height0 != firstImage->base.Height2 || 1829 stObj->pt->depth0 != firstImage->base.Depth2) 1830 { 1831 pipe_texture_reference(&stObj->pt, NULL); 1832 pipe_sampler_view_reference(&stObj->sampler_view, NULL); 1833 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1834 } 1835 } 1836 1837 /* May need to create a new gallium texture: 1838 */ 1839 if (!stObj->pt) { 1840 const enum pipe_format fmt = 1841 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1842 GLuint usage = default_usage(fmt); 1843 1844 stObj->pt = st_texture_create(ctx->st, 1845 gl_target_to_pipe(stObj->base.Target), 1846 fmt, 1847 stObj->lastLevel, 1848 firstImage->base.Width2, 1849 firstImage->base.Height2, 1850 firstImage->base.Depth2, 1851 usage); 1852 1853 if (!stObj->pt) { 1854 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1855 return GL_FALSE; 1856 } 1857 } 1858 1859 /* Pull in any images not in the object's texture: 1860 */ 1861 for (face = 0; face < nr_faces; face++) { 1862 GLuint level; 1863 for (level = 0; level <= stObj->lastLevel; level++) { 1864 struct st_texture_image *stImage = 1865 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1866 1867 /* Need to import images in main memory or held in other textures. 1868 */ 1869 if (stImage && stObj->pt != stImage->pt) { 1870 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1871 *needFlush = GL_TRUE; 1872 } 1873 } 1874 } 1875 1876 return GL_TRUE; 1877} 1878 1879 1880/** 1881 * Returns pointer to a default/dummy texture. 1882 * This is typically used when the current shader has tex/sample instructions 1883 * but the user has not provided a (any) texture(s). 1884 */ 1885struct gl_texture_object * 1886st_get_default_texture(struct st_context *st) 1887{ 1888 if (!st->default_texture) { 1889 static const GLenum target = GL_TEXTURE_2D; 1890 GLubyte pixels[16][16][4]; 1891 struct gl_texture_object *texObj; 1892 struct gl_texture_image *texImg; 1893 GLuint i, j; 1894 1895 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1896 * when attempting to sample incomplete textures. 1897 */ 1898 for (i = 0; i < 16; i++) { 1899 for (j = 0; j < 16; j++) { 1900 pixels[i][j][0] = 0; 1901 pixels[i][j][1] = 0; 1902 pixels[i][j][2] = 0; 1903 pixels[i][j][3] = 255; 1904 } 1905 } 1906 1907 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1908 1909 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1910 1911 _mesa_init_teximage_fields(st->ctx, target, texImg, 1912 16, 16, 1, 0, /* w, h, d, border */ 1913 GL_RGBA); 1914 1915 st_TexImage(st->ctx, 2, target, 1916 0, GL_RGBA, /* level, intformat */ 1917 16, 16, 1, 0, /* w, h, d, border */ 1918 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1919 &st->ctx->DefaultPacking, 1920 texObj, texImg, 1921 0, 0); 1922 1923 texObj->MinFilter = GL_NEAREST; 1924 texObj->MagFilter = GL_NEAREST; 1925 texObj->_Complete = GL_TRUE; 1926 1927 st->default_texture = texObj; 1928 } 1929 return st->default_texture; 1930} 1931 1932 1933void 1934st_init_texture_functions(struct dd_function_table *functions) 1935{ 1936 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1937 functions->TexImage1D = st_TexImage1D; 1938 functions->TexImage2D = st_TexImage2D; 1939 functions->TexImage3D = st_TexImage3D; 1940 functions->TexSubImage1D = st_TexSubImage1D; 1941 functions->TexSubImage2D = st_TexSubImage2D; 1942 functions->TexSubImage3D = st_TexSubImage3D; 1943 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1944 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1945 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1946 functions->CopyTexImage1D = st_CopyTexImage1D; 1947 functions->CopyTexImage2D = st_CopyTexImage2D; 1948 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1949 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1950 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1951 functions->GenerateMipmap = st_generate_mipmap; 1952 1953 functions->GetTexImage = st_GetTexImage; 1954 1955 /* compressed texture functions */ 1956 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1957 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1958 1959 functions->NewTextureObject = st_NewTextureObject; 1960 functions->NewTextureImage = st_NewTextureImage; 1961 functions->DeleteTexture = st_DeleteTextureObject; 1962 functions->FreeTexImageData = st_FreeTextureImageData; 1963 functions->UpdateTexturePalette = 0; 1964 1965 functions->TextureMemCpy = do_memcpy; 1966 1967 /* XXX Temporary until we can query pipe's texture sizes */ 1968 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1969} 1970