st_cb_texture.c revision 124fc96ddf2695b4eca1a9b373f33cb993de9f6a
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#include "main/enums.h" 31#include "main/fbobject.h" 32#include "main/formats.h" 33#include "main/image.h" 34#include "main/imports.h" 35#include "main/macros.h" 36#include "main/mipmap.h" 37#include "main/pack.h" 38#include "main/pbo.h" 39#include "main/pixeltransfer.h" 40#include "main/texcompress.h" 41#include "main/texgetimage.h" 42#include "main/teximage.h" 43#include "main/texobj.h" 44#include "main/texstore.h" 45 46#include "state_tracker/st_debug.h" 47#include "state_tracker/st_context.h" 48#include "state_tracker/st_cb_fbo.h" 49#include "state_tracker/st_cb_flush.h" 50#include "state_tracker/st_cb_texture.h" 51#include "state_tracker/st_format.h" 52#include "state_tracker/st_texture.h" 53#include "state_tracker/st_gen_mipmap.h" 54#include "state_tracker/st_atom.h" 55 56#include "pipe/p_context.h" 57#include "pipe/p_defines.h" 58#include "util/u_inlines.h" 59#include "pipe/p_shader_tokens.h" 60#include "util/u_tile.h" 61#include "util/u_blit.h" 62#include "util/u_format.h" 63#include "util/u_surface.h" 64#include "util/u_sampler.h" 65#include "util/u_math.h" 66#include "util/u_box.h" 67 68#define DBG if (0) printf 69 70 71static enum pipe_texture_target 72gl_target_to_pipe(GLenum target) 73{ 74 switch (target) { 75 case GL_TEXTURE_1D: 76 return PIPE_TEXTURE_1D; 77 case GL_TEXTURE_2D: 78 return PIPE_TEXTURE_2D; 79 case GL_TEXTURE_RECTANGLE_NV: 80 return PIPE_TEXTURE_RECT; 81 case GL_TEXTURE_3D: 82 return PIPE_TEXTURE_3D; 83 case GL_TEXTURE_CUBE_MAP_ARB: 84 return PIPE_TEXTURE_CUBE; 85 case GL_TEXTURE_1D_ARRAY_EXT: 86 return PIPE_TEXTURE_1D_ARRAY; 87 case GL_TEXTURE_2D_ARRAY_EXT: 88 return PIPE_TEXTURE_2D_ARRAY; 89 case GL_TEXTURE_BUFFER: 90 return PIPE_BUFFER; 91 default: 92 assert(0); 93 return 0; 94 } 95} 96 97 98/** called via ctx->Driver.NewTextureImage() */ 99static struct gl_texture_image * 100st_NewTextureImage(struct gl_context * ctx) 101{ 102 DBG("%s\n", __FUNCTION__); 103 (void) ctx; 104 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 105} 106 107 108/** called via ctx->Driver.DeleteTextureImage() */ 109static void 110st_DeleteTextureImage(struct gl_context * ctx, struct gl_texture_image *img) 111{ 112 /* nothing special (yet) for st_texture_image */ 113 _mesa_delete_texture_image(ctx, img); 114} 115 116 117/** called via ctx->Driver.NewTextureObject() */ 118static struct gl_texture_object * 119st_NewTextureObject(struct gl_context * ctx, GLuint name, GLenum target) 120{ 121 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 122 123 DBG("%s\n", __FUNCTION__); 124 _mesa_initialize_texture_object(&obj->base, name, target); 125 126 return &obj->base; 127} 128 129/** called via ctx->Driver.DeleteTextureObject() */ 130static void 131st_DeleteTextureObject(struct gl_context *ctx, 132 struct gl_texture_object *texObj) 133{ 134 struct st_context *st = st_context(ctx); 135 struct st_texture_object *stObj = st_texture_object(texObj); 136 if (stObj->pt) 137 pipe_resource_reference(&stObj->pt, NULL); 138 if (stObj->sampler_view) { 139 if (stObj->sampler_view->context != st->pipe) { 140 /* Take "ownership" of this texture sampler view by setting 141 * its context pointer to this context. This avoids potential 142 * crashes when the texture object is shared among contexts 143 * and the original/owner context has already been destroyed. 144 */ 145 stObj->sampler_view->context = st->pipe; 146 } 147 pipe_sampler_view_reference(&stObj->sampler_view, NULL); 148 } 149 _mesa_delete_texture_object(ctx, texObj); 150} 151 152 153/** called via ctx->Driver.FreeTextureImageBuffer() */ 154static void 155st_FreeTextureImageBuffer(struct gl_context * ctx, struct gl_texture_image *texImage) 156{ 157 struct st_texture_image *stImage = st_texture_image(texImage); 158 159 DBG("%s\n", __FUNCTION__); 160 161 if (stImage->pt) { 162 pipe_resource_reference(&stImage->pt, NULL); 163 } 164 165 if (texImage->Data) { 166 _mesa_align_free(texImage->Data); 167 texImage->Data = NULL; 168 } 169} 170 171 172/** called via ctx->Driver.MapTextureImage() */ 173static void 174st_MapTextureImage(struct gl_context *ctx, 175 struct gl_texture_image *texImage, 176 GLuint slice, GLuint x, GLuint y, GLuint w, GLuint h, 177 GLbitfield mode, 178 GLubyte **mapOut, GLint *rowStrideOut) 179{ 180 struct st_context *st = st_context(ctx); 181 struct st_texture_image *stImage = st_texture_image(texImage); 182 unsigned pipeMode; 183 GLubyte *map; 184 185 pipeMode = 0x0; 186 if (mode & GL_MAP_READ_BIT) 187 pipeMode |= PIPE_TRANSFER_READ; 188 if (mode & GL_MAP_WRITE_BIT) 189 pipeMode |= PIPE_TRANSFER_WRITE; 190 191 map = st_texture_image_map(st, stImage, slice, pipeMode, x, y, w, h); 192 if (map) { 193 *mapOut = map; 194 *rowStrideOut = stImage->transfer->stride; 195 } 196 else { 197 *mapOut = NULL; 198 *rowStrideOut = 0; 199 } 200} 201 202 203/** called via ctx->Driver.UnmapTextureImage() */ 204static void 205st_UnmapTextureImage(struct gl_context *ctx, 206 struct gl_texture_image *texImage, 207 GLuint slice) 208{ 209 struct st_context *st = st_context(ctx); 210 struct st_texture_image *stImage = st_texture_image(texImage); 211 st_texture_image_unmap(st, stImage); 212} 213 214 215/** 216 * From linux kernel i386 header files, copes with odd sizes better 217 * than COPY_DWORDS would: 218 * XXX Put this in src/mesa/main/imports.h ??? 219 */ 220#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) 221static INLINE void * 222__memcpy(void *to, const void *from, size_t n) 223{ 224 int d0, d1, d2; 225 __asm__ __volatile__("rep ; movsl\n\t" 226 "testb $2,%b4\n\t" 227 "je 1f\n\t" 228 "movsw\n" 229 "1:\ttestb $1,%b4\n\t" 230 "je 2f\n\t" 231 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 232 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 233 :"memory"); 234 return (to); 235} 236#else 237#define __memcpy(a,b,c) memcpy(a,b,c) 238#endif 239 240 241/** 242 * The system memcpy (at least on ubuntu 5.10) has problems copying 243 * to agp (writecombined) memory from a source which isn't 64-byte 244 * aligned - there is a 4x performance falloff. 245 * 246 * The x86 __memcpy is immune to this but is slightly slower 247 * (10%-ish) than the system memcpy. 248 * 249 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 250 * isn't much faster than x86_memcpy for agp copies. 251 * 252 * TODO: switch dynamically. 253 */ 254static void * 255do_memcpy(void *dest, const void *src, size_t n) 256{ 257 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { 258 return __memcpy(dest, src, n); 259 } 260 else 261 return memcpy(dest, src, n); 262} 263 264 265/** 266 * Return default texture resource binding bitmask for the given format. 267 */ 268static GLuint 269default_bindings(struct st_context *st, enum pipe_format format) 270{ 271 struct pipe_screen *screen = st->pipe->screen; 272 const unsigned target = PIPE_TEXTURE_2D; 273 unsigned bindings; 274 275 if (util_format_is_depth_or_stencil(format)) 276 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL; 277 else 278 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; 279 280 if (screen->is_format_supported(screen, format, target, 0, bindings)) 281 return bindings; 282 else { 283 /* Try non-sRGB. */ 284 format = util_format_linear(format); 285 286 if (screen->is_format_supported(screen, format, target, 0, bindings)) 287 return bindings; 288 else 289 return PIPE_BIND_SAMPLER_VIEW; 290 } 291} 292 293 294/** Return number of image dimensions (1, 2 or 3) for a texture target. */ 295static GLuint 296get_texture_dims(GLenum target) 297{ 298 switch (target) { 299 case GL_TEXTURE_1D: 300 case GL_TEXTURE_1D_ARRAY_EXT: 301 case GL_TEXTURE_BUFFER: 302 return 1; 303 case GL_TEXTURE_2D: 304 case GL_TEXTURE_CUBE_MAP_ARB: 305 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 306 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 307 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 308 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 309 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 310 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 311 case GL_TEXTURE_RECTANGLE_NV: 312 case GL_TEXTURE_2D_ARRAY_EXT: 313 return 2; 314 case GL_TEXTURE_3D: 315 return 3; 316 default: 317 assert(0 && "invalid texture target in get_texture_dims()"); 318 return 1; 319 } 320} 321 322 323/** 324 * Given the size of a mipmap image, try to compute the size of the level=0 325 * mipmap image. 326 * 327 * Note that this isn't always accurate for odd-sized, non-POW textures. 328 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81. 329 * 330 * \return GL_TRUE for success, GL_FALSE for failure 331 */ 332static GLboolean 333guess_base_level_size(GLenum target, 334 GLuint width, GLuint height, GLuint depth, GLuint level, 335 GLuint *width0, GLuint *height0, GLuint *depth0) 336{ 337 const GLuint dims = get_texture_dims(target); 338 339 assert(width >= 1); 340 assert(height >= 1); 341 assert(depth >= 1); 342 343 if (level > 0) { 344 /* Depending on the image's size, we can't always make a guess here */ 345 if ((dims >= 1 && width == 1) || 346 (dims >= 2 && height == 1) || 347 (dims >= 3 && depth == 1)) { 348 /* we can't determine the image size at level=0 */ 349 return GL_FALSE; 350 } 351 352 /* grow the image size until we hit level = 0 */ 353 while (level > 0) { 354 if (width > 1) 355 width <<= 1; 356 if (height > 1) 357 height <<= 1; 358 if (depth > 1) 359 depth <<= 1; 360 level--; 361 } 362 } 363 364 *width0 = width; 365 *height0 = height; 366 *depth0 = depth; 367 368 return GL_TRUE; 369} 370 371 372/** 373 * Try to allocate a pipe_resource object for the given st_texture_object. 374 * 375 * We use the given st_texture_image as a clue to determine the size of the 376 * mipmap image at level=0. 377 * 378 * \return GL_TRUE for success, GL_FALSE if out of memory. 379 */ 380static GLboolean 381guess_and_alloc_texture(struct st_context *st, 382 struct st_texture_object *stObj, 383 const struct st_texture_image *stImage) 384{ 385 GLuint lastLevel, width, height, depth; 386 GLuint bindings; 387 GLuint ptWidth, ptHeight, ptDepth, ptLayers; 388 enum pipe_format fmt; 389 390 DBG("%s\n", __FUNCTION__); 391 392 assert(!stObj->pt); 393 394 if (!guess_base_level_size(stObj->base.Target, 395 stImage->base.Width2, 396 stImage->base.Height2, 397 stImage->base.Depth2, 398 stImage->base.Level, 399 &width, &height, &depth)) { 400 /* we can't determine the image size at level=0 */ 401 stObj->width0 = stObj->height0 = stObj->depth0 = 0; 402 /* this is not an out of memory error */ 403 return GL_TRUE; 404 } 405 406 /* At this point, (width x height x depth) is the expected size of 407 * the level=0 mipmap image. 408 */ 409 410 /* Guess a reasonable value for lastLevel. With OpenGL we have no 411 * idea how many mipmap levels will be in a texture until we start 412 * to render with it. Make an educated guess here but be prepared 413 * to re-allocating a texture buffer with space for more (or fewer) 414 * mipmap levels later. 415 */ 416 if ((stObj->base.Sampler.MinFilter == GL_NEAREST || 417 stObj->base.Sampler.MinFilter == GL_LINEAR || 418 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 419 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 420 !stObj->base.GenerateMipmap && 421 stImage->base.Level == 0) { 422 /* only alloc space for a single mipmap level */ 423 lastLevel = 0; 424 } 425 else { 426 /* alloc space for a full mipmap */ 427 GLuint l2width = util_logbase2(width); 428 GLuint l2height = util_logbase2(height); 429 GLuint l2depth = util_logbase2(depth); 430 lastLevel = MAX2(MAX2(l2width, l2height), l2depth); 431 } 432 433 /* Save the level=0 dimensions */ 434 stObj->width0 = width; 435 stObj->height0 = height; 436 stObj->depth0 = depth; 437 438 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat); 439 440 bindings = default_bindings(st, fmt); 441 442 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, 443 width, height, depth, 444 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 445 446 stObj->pt = st_texture_create(st, 447 gl_target_to_pipe(stObj->base.Target), 448 fmt, 449 lastLevel, 450 ptWidth, 451 ptHeight, 452 ptDepth, 453 ptLayers, 454 bindings); 455 456 DBG("%s returning %d\n", __FUNCTION__, (stObj->pt != NULL)); 457 458 return stObj->pt != NULL; 459} 460 461 462/** 463 * Adjust pixel unpack params and image dimensions to strip off the 464 * texture border. 465 * Gallium doesn't support texture borders. They've seldem been used 466 * and seldom been implemented correctly anyway. 467 * \param unpackNew returns the new pixel unpack parameters 468 */ 469static void 470strip_texture_border(GLint border, 471 GLint *width, GLint *height, GLint *depth, 472 const struct gl_pixelstore_attrib *unpack, 473 struct gl_pixelstore_attrib *unpackNew) 474{ 475 assert(border > 0); /* sanity check */ 476 477 *unpackNew = *unpack; 478 479 if (unpackNew->RowLength == 0) 480 unpackNew->RowLength = *width; 481 482 if (depth && unpackNew->ImageHeight == 0) 483 unpackNew->ImageHeight = *height; 484 485 unpackNew->SkipPixels += border; 486 if (height) 487 unpackNew->SkipRows += border; 488 if (depth) 489 unpackNew->SkipImages += border; 490 491 assert(*width >= 3); 492 *width = *width - 2 * border; 493 if (height && *height >= 3) 494 *height = *height - 2 * border; 495 if (depth && *depth >= 3) 496 *depth = *depth - 2 * border; 497} 498 499 500/** 501 * Do glTexImage1/2/3D(). 502 */ 503static void 504st_TexImage(struct gl_context * ctx, 505 GLint dims, 506 GLenum target, GLint level, 507 GLint internalFormat, 508 GLint width, GLint height, GLint depth, 509 GLint border, 510 GLenum format, GLenum type, const void *pixels, 511 const struct gl_pixelstore_attrib *unpack, 512 struct gl_texture_object *texObj, 513 struct gl_texture_image *texImage, 514 GLsizei imageSize, GLboolean compressed_src) 515{ 516 struct st_context *st = st_context(ctx); 517 struct st_texture_object *stObj = st_texture_object(texObj); 518 struct st_texture_image *stImage = st_texture_image(texImage); 519 GLuint dstRowStride = 0; 520 struct gl_pixelstore_attrib unpackNB; 521 enum pipe_transfer_usage transfer_usage = 0; 522 523 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 524 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 525 526 /* switch to "normal" */ 527 if (stObj->surface_based) { 528 gl_format texFormat; 529 530 _mesa_clear_texture_object(ctx, texObj); 531 pipe_resource_reference(&stObj->pt, NULL); 532 533 /* oops, need to init this image again */ 534 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 535 internalFormat, format, type); 536 537 _mesa_init_teximage_fields(ctx, target, texImage, 538 width, height, depth, border, 539 internalFormat, texFormat); 540 541 stObj->surface_based = GL_FALSE; 542 } 543 544 /* gallium does not support texture borders, strip it off */ 545 if (border) { 546 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 547 unpack = &unpackNB; 548 texImage->Width = width; 549 texImage->Height = height; 550 texImage->Depth = depth; 551 texImage->Border = 0; 552 border = 0; 553 } 554 else { 555 assert(texImage->Width == width); 556 assert(texImage->Height == height); 557 assert(texImage->Depth == depth); 558 } 559 560 stImage->base.Face = _mesa_tex_target_to_face(target); 561 stImage->base.Level = level; 562 563 /* Release the reference to a potentially orphaned buffer. 564 * Release any old malloced memory. 565 */ 566 if (stImage->pt) { 567 pipe_resource_reference(&stImage->pt, NULL); 568 assert(!texImage->Data); 569 } 570 else if (texImage->Data) { 571 _mesa_align_free(texImage->Data); 572 } 573 574 /* 575 * See if the new image is somehow incompatible with the existing 576 * mipmap. If so, free the old mipmap. 577 */ 578 if (stObj->pt) { 579 if (level > (GLint) stObj->pt->last_level || 580 !st_texture_match_image(stObj->pt, &stImage->base)) { 581 DBG("release it\n"); 582 pipe_resource_reference(&stObj->pt, NULL); 583 assert(!stObj->pt); 584 pipe_sampler_view_reference(&stObj->sampler_view, NULL); 585 } 586 } 587 588 if (width == 0 || height == 0 || depth == 0) { 589 /* stop after freeing old image */ 590 return; 591 } 592 593 if (!stObj->pt) { 594 if (!guess_and_alloc_texture(st, stObj, stImage)) { 595 /* Probably out of memory. 596 * Try flushing any pending rendering, then retry. 597 */ 598 st_finish(st); 599 if (!guess_and_alloc_texture(st, stObj, stImage)) { 600 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 601 return; 602 } 603 } 604 } 605 606 assert(!stImage->pt); 607 608 /* Check if this texture image can live inside the texture object's buffer. 609 * If so, store the image there. Otherwise the image will temporarily live 610 * in its own buffer. 611 */ 612 if (stObj->pt && 613 st_texture_match_image(stObj->pt, &stImage->base)) { 614 615 pipe_resource_reference(&stImage->pt, stObj->pt); 616 assert(stImage->pt); 617 } 618 619 if (!stImage->pt) 620 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 621 622 /* Pixel data may come from regular user memory or a PBO. For the later, 623 * do bounds checking and map the PBO to read pixels data from it. 624 * 625 * XXX we should try to use a GPU-accelerated path to copy the image data 626 * from the PBO to the texture. 627 */ 628 if (compressed_src) { 629 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 630 unpack, 631 "glCompressedTexImage"); 632 } 633 else { 634 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 635 format, type, 636 pixels, unpack, "glTexImage"); 637 } 638 639 /* for a 1D array upload the image as a series of layer with height = 1 */ 640 if (target == GL_TEXTURE_1D_ARRAY) { 641 depth = height; 642 height = 1; 643 } 644 645 /* 646 * Prepare to store the texture data. Either map the gallium texture buffer 647 * memory or malloc space for it. 648 */ 649 if (stImage->pt) { 650 if (!pixels) { 651 /* We've allocated texture resource, but have no pixel data - all done. */ 652 goto done; 653 } 654 655 /* Store the image in the gallium transfer object */ 656 if (format == GL_DEPTH_COMPONENT && 657 util_format_is_depth_and_stencil(stImage->pt->format)) 658 transfer_usage = PIPE_TRANSFER_READ_WRITE; 659 else 660 transfer_usage = PIPE_TRANSFER_WRITE; 661 662 texImage->Data = st_texture_image_map(st, stImage, 0, 663 transfer_usage, 0, 0, width, height); 664 if(stImage->transfer) 665 dstRowStride = stImage->transfer->stride; 666 } 667 else { 668 /* Allocate regular memory and store the image there temporarily. */ 669 GLuint imageSize = _mesa_format_image_size(texImage->TexFormat, 670 width, height, depth); 671 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width); 672 673 texImage->Data = _mesa_align_malloc(imageSize, 16); 674 } 675 676 if (!texImage->Data) { 677 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 678 return; 679 } 680 681 if (!pixels) { 682 /* We've allocated texture memory, but have no pixel data - all done. */ 683 goto done; 684 } 685 686 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 687 width, height, depth, width, dstRowStride); 688 689 /* Copy user texture image into the texture buffer. 690 */ 691 if (compressed_src) { 692 const GLuint srcRowStride = 693 _mesa_format_row_stride(texImage->TexFormat, width); 694 if (dstRowStride == srcRowStride) { 695 memcpy(texImage->Data, pixels, imageSize); 696 } 697 else { 698 char *dst = texImage->Data; 699 const char *src = pixels; 700 GLuint i, bw, bh, lines; 701 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh); 702 lines = (height + bh - 1) / bh; 703 704 for (i = 0; i < lines; ++i) { 705 memcpy(dst, src, srcRowStride); 706 dst += dstRowStride; 707 src += srcRowStride; 708 } 709 } 710 } 711 else { 712 const GLuint srcImageStride = 713 _mesa_image_image_stride(unpack, width, height, format, type); 714 GLint i; 715 const GLubyte *src = (const GLubyte *) pixels; 716 717 for (i = 0; i < depth; i++) { 718 if (!_mesa_texstore(ctx, dims, 719 texImage->_BaseFormat, 720 texImage->TexFormat, 721 texImage->Data, 722 0, 0, 0, /* dstX/Y/Zoffset */ 723 dstRowStride, 724 texImage->ImageOffsets, 725 width, height, 1, 726 format, type, src, unpack)) { 727 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 728 } 729 730 if (stImage->pt && i + 1 < depth) { 731 /* unmap this slice */ 732 st_texture_image_unmap(st, stImage); 733 /* map next slice of 3D texture */ 734 texImage->Data = st_texture_image_map(st, stImage, i + 1, 735 transfer_usage, 0, 0, 736 width, height); 737 src += srcImageStride; 738 } 739 } 740 } 741 742done: 743 _mesa_unmap_teximage_pbo(ctx, unpack); 744 745 if (stImage->pt && texImage->Data) { 746 st_texture_image_unmap(st, stImage); 747 texImage->Data = NULL; 748 } 749} 750 751 752static void 753st_TexImage3D(struct gl_context * ctx, 754 GLenum target, GLint level, 755 GLint internalFormat, 756 GLint width, GLint height, GLint depth, 757 GLint border, 758 GLenum format, GLenum type, const void *pixels, 759 const struct gl_pixelstore_attrib *unpack, 760 struct gl_texture_object *texObj, 761 struct gl_texture_image *texImage) 762{ 763 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 764 border, format, type, pixels, unpack, texObj, texImage, 765 0, GL_FALSE); 766} 767 768 769static void 770st_TexImage2D(struct gl_context * ctx, 771 GLenum target, GLint level, 772 GLint internalFormat, 773 GLint width, GLint height, GLint border, 774 GLenum format, GLenum type, const void *pixels, 775 const struct gl_pixelstore_attrib *unpack, 776 struct gl_texture_object *texObj, 777 struct gl_texture_image *texImage) 778{ 779 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 780 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 781} 782 783 784static void 785st_TexImage1D(struct gl_context * ctx, 786 GLenum target, GLint level, 787 GLint internalFormat, 788 GLint width, GLint border, 789 GLenum format, GLenum type, const void *pixels, 790 const struct gl_pixelstore_attrib *unpack, 791 struct gl_texture_object *texObj, 792 struct gl_texture_image *texImage) 793{ 794 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 795 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 796} 797 798 799static void 800st_CompressedTexImage2D(struct gl_context *ctx, GLenum target, GLint level, 801 GLint internalFormat, 802 GLint width, GLint height, GLint border, 803 GLsizei imageSize, const GLvoid *data, 804 struct gl_texture_object *texObj, 805 struct gl_texture_image *texImage) 806{ 807 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 808 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 809} 810 811 812 813/** 814 * glGetTexImage() helper: decompress a compressed texture by rendering 815 * a textured quad. Store the results in the user's buffer. 816 */ 817static void 818decompress_with_blit(struct gl_context * ctx, GLenum target, GLint level, 819 GLenum format, GLenum type, GLvoid *pixels, 820 struct gl_texture_object *texObj, 821 struct gl_texture_image *texImage) 822{ 823 struct st_context *st = st_context(ctx); 824 struct pipe_context *pipe = st->pipe; 825 struct st_texture_image *stImage = st_texture_image(texImage); 826 struct st_texture_object *stObj = st_texture_object(texObj); 827 struct pipe_sampler_view *src_view = 828 st_get_texture_sampler_view(stObj, pipe); 829 const GLuint width = texImage->Width; 830 const GLuint height = texImage->Height; 831 struct pipe_surface *dst_surface; 832 struct pipe_resource *dst_texture; 833 struct pipe_transfer *tex_xfer; 834 unsigned bind = (PIPE_BIND_RENDER_TARGET | /* util_blit may choose to render */ 835 PIPE_BIND_TRANSFER_READ); 836 837 /* create temp / dest surface */ 838 if (!util_create_rgba_surface(pipe, width, height, bind, 839 &dst_texture, &dst_surface)) { 840 _mesa_problem(ctx, "util_create_rgba_surface() failed " 841 "in decompress_with_blit()"); 842 return; 843 } 844 845 /* Disable conditional rendering. */ 846 if (st->render_condition) { 847 pipe->render_condition(pipe, NULL, 0); 848 } 849 850 /* Choose the source mipmap level */ 851 src_view->u.tex.first_level = src_view->u.tex.last_level = level; 852 853 /* blit/render/decompress */ 854 util_blit_pixels_tex(st->blit, 855 src_view, /* pipe_resource (src) */ 856 0, 0, /* src x0, y0 */ 857 width, height, /* src x1, y1 */ 858 dst_surface, /* pipe_surface (dst) */ 859 0, 0, /* dst x0, y0 */ 860 width, height, /* dst x1, y1 */ 861 0.0, /* z */ 862 PIPE_TEX_MIPFILTER_NEAREST); 863 864 /* Restore conditional rendering state. */ 865 if (st->render_condition) { 866 pipe->render_condition(pipe, st->render_condition, 867 st->condition_mode); 868 } 869 870 /* map the dst_surface so we can read from it */ 871 tex_xfer = pipe_get_transfer(pipe, 872 dst_texture, 0, 0, 873 PIPE_TRANSFER_READ, 874 0, 0, width, height); 875 876 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 877 878 /* copy/pack data into user buffer */ 879 if (st_equal_formats(stImage->pt->format, format, type)) { 880 /* memcpy */ 881 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); 882 ubyte *map = pipe_transfer_map(pipe, tex_xfer); 883 GLuint row; 884 for (row = 0; row < height; row++) { 885 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 886 height, format, type, row, 0); 887 memcpy(dest, map, bytesPerRow); 888 map += tex_xfer->stride; 889 } 890 pipe_transfer_unmap(pipe, tex_xfer); 891 } 892 else { 893 /* format translation via floats */ 894 GLuint row; 895 enum pipe_format pformat = util_format_linear(dst_texture->format); 896 for (row = 0; row < height; row++) { 897 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 898 GLfloat rgba[4 * MAX_WIDTH]; 899 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 900 height, format, type, row, 0); 901 902 if (ST_DEBUG & DEBUG_FALLBACK) 903 debug_printf("%s: fallback format translation\n", __FUNCTION__); 904 905 /* get float[4] rgba row from surface */ 906 pipe_get_tile_rgba_format(pipe, tex_xfer, 0, row, width, 1, 907 pformat, rgba); 908 909 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 910 type, dest, &ctx->Pack, transferOps); 911 } 912 } 913 914 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 915 916 pipe->transfer_destroy(pipe, tex_xfer); 917 918 /* destroy the temp / dest surface */ 919 util_destroy_rgba_surface(dst_texture, dst_surface); 920} 921 922 923 924/** 925 * Need to map texture image into memory before copying image data, 926 * then unmap it. 927 */ 928static void 929st_GetTexImage(struct gl_context * ctx, GLenum target, GLint level, 930 GLenum format, GLenum type, GLvoid * pixels, 931 struct gl_texture_object *texObj, 932 struct gl_texture_image *texImage) 933{ 934 struct st_context *st = st_context(ctx); 935 struct st_texture_image *stImage = st_texture_image(texImage); 936 const GLuint dstImageStride = 937 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 938 format, type); 939 GLuint depth, i; 940 GLubyte *dest; 941 942 if (stImage->pt && util_format_is_s3tc(stImage->pt->format)) { 943 /* Need to decompress the texture. 944 * We'll do this by rendering a textured quad. 945 * Note that we only expect RGBA formats (no Z/depth formats). 946 */ 947 decompress_with_blit(ctx, target, level, format, type, pixels, 948 texObj, texImage); 949 return; 950 } 951 952 depth = texImage->Depth; 953 texImage->Depth = 1; 954 955 dest = (GLubyte *) pixels; 956 957 for (i = 0; i < depth; i++) { 958 _mesa_get_teximage(ctx, target, level, format, type, dest, 959 texObj, texImage); 960 961 if (stImage->pt && i + 1 < depth) { 962 /* unmap this slice */ 963 st_texture_image_unmap(st, stImage); 964 /* map next slice of 3D texture */ 965 texImage->Data = st_texture_image_map(st, stImage, i + 1, 966 PIPE_TRANSFER_READ, 0, 0, 967 stImage->base.Width, 968 stImage->base.Height); 969 dest += dstImageStride; 970 } 971 } 972 973 texImage->Depth = depth; 974} 975 976 977static void 978st_TexSubimage(struct gl_context *ctx, GLint dims, GLenum target, GLint level, 979 GLint xoffset, GLint yoffset, GLint zoffset, 980 GLint width, GLint height, GLint depth, 981 GLenum format, GLenum type, const void *pixels, 982 const struct gl_pixelstore_attrib *packing, 983 struct gl_texture_object *texObj, 984 struct gl_texture_image *texImage) 985{ 986 struct st_context *st = st_context(ctx); 987 struct st_texture_image *stImage = st_texture_image(texImage); 988 GLuint dstRowStride; 989 const GLuint srcImageStride = 990 _mesa_image_image_stride(packing, width, height, format, type); 991 GLint i; 992 const GLubyte *src; 993 /* init to silence warning only: */ 994 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 995 996 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 997 _mesa_lookup_enum_by_nr(target), 998 level, xoffset, yoffset, width, height); 999 1000 pixels = 1001 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1002 type, pixels, packing, "glTexSubImage2D"); 1003 if (!pixels) 1004 return; 1005 1006 /* for a 1D array upload the image as a series of layer with height = 1 */ 1007 if (target == GL_TEXTURE_1D_ARRAY) { 1008 depth = height; 1009 height = 1; 1010 } 1011 1012 /* Map buffer if necessary. Need to lock to prevent other contexts 1013 * from uploading the buffer under us. 1014 */ 1015 if (stImage->pt) { 1016 if (format == GL_DEPTH_COMPONENT && 1017 util_format_is_depth_and_stencil(stImage->pt->format)) 1018 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1019 else 1020 transfer_usage = PIPE_TRANSFER_WRITE; 1021 1022 texImage->Data = st_texture_image_map(st, stImage, zoffset, 1023 transfer_usage, 1024 xoffset, yoffset, 1025 width, height); 1026 } 1027 1028 if (!texImage->Data) { 1029 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1030 goto done; 1031 } 1032 1033 src = (const GLubyte *) pixels; 1034 dstRowStride = stImage->transfer->stride; 1035 1036 for (i = 0; i < depth; i++) { 1037 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat, 1038 texImage->TexFormat, 1039 texImage->Data, 1040 0, 0, 0, 1041 dstRowStride, 1042 texImage->ImageOffsets, 1043 width, height, 1, 1044 format, type, src, packing)) { 1045 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1046 } 1047 1048 if (stImage->pt && i + 1 < depth) { 1049 /* unmap this slice */ 1050 st_texture_image_unmap(st, stImage); 1051 /* map next slice of 3D texture */ 1052 texImage->Data = st_texture_image_map(st, stImage, 1053 zoffset + i + 1, 1054 transfer_usage, 1055 xoffset, yoffset, 1056 width, height); 1057 src += srcImageStride; 1058 } 1059 } 1060 1061done: 1062 _mesa_unmap_teximage_pbo(ctx, packing); 1063 1064 if (stImage->pt && texImage->Data) { 1065 st_texture_image_unmap(st, stImage); 1066 texImage->Data = NULL; 1067 } 1068} 1069 1070 1071 1072static void 1073st_TexSubImage3D(struct gl_context *ctx, GLenum target, GLint level, 1074 GLint xoffset, GLint yoffset, GLint zoffset, 1075 GLsizei width, GLsizei height, GLsizei depth, 1076 GLenum format, GLenum type, const GLvoid *pixels, 1077 const struct gl_pixelstore_attrib *packing, 1078 struct gl_texture_object *texObj, 1079 struct gl_texture_image *texImage) 1080{ 1081 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1082 width, height, depth, format, type, 1083 pixels, packing, texObj, texImage); 1084} 1085 1086 1087static void 1088st_TexSubImage2D(struct gl_context *ctx, GLenum target, GLint level, 1089 GLint xoffset, GLint yoffset, 1090 GLsizei width, GLsizei height, 1091 GLenum format, GLenum type, const GLvoid * pixels, 1092 const struct gl_pixelstore_attrib *packing, 1093 struct gl_texture_object *texObj, 1094 struct gl_texture_image *texImage) 1095{ 1096 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1097 width, height, 1, format, type, 1098 pixels, packing, texObj, texImage); 1099} 1100 1101 1102static void 1103st_TexSubImage1D(struct gl_context *ctx, GLenum target, GLint level, 1104 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1105 const GLvoid * pixels, 1106 const struct gl_pixelstore_attrib *packing, 1107 struct gl_texture_object *texObj, 1108 struct gl_texture_image *texImage) 1109{ 1110 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1111 format, type, pixels, packing, texObj, texImage); 1112} 1113 1114 1115static void 1116st_CompressedTexSubImage1D(struct gl_context *ctx, GLenum target, GLint level, 1117 GLint xoffset, GLsizei width, 1118 GLenum format, 1119 GLsizei imageSize, const GLvoid *data, 1120 struct gl_texture_object *texObj, 1121 struct gl_texture_image *texImage) 1122{ 1123 assert(0); 1124} 1125 1126 1127static void 1128st_CompressedTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level, 1129 GLint xoffset, GLint yoffset, 1130 GLsizei width, GLint height, 1131 GLenum format, 1132 GLsizei imageSize, const GLvoid *data, 1133 struct gl_texture_object *texObj, 1134 struct gl_texture_image *texImage) 1135{ 1136 struct st_context *st = st_context(ctx); 1137 struct st_texture_image *stImage = st_texture_image(texImage); 1138 int srcBlockStride; 1139 int dstBlockStride; 1140 int y; 1141 enum pipe_format pformat; 1142 1143 if (stImage->pt) { 1144 pformat = stImage->pt->format; 1145 1146 texImage->Data = st_texture_image_map(st, stImage, 0, 1147 PIPE_TRANSFER_WRITE, 1148 xoffset, yoffset, 1149 width, height); 1150 1151 srcBlockStride = util_format_get_stride(pformat, width); 1152 dstBlockStride = stImage->transfer->stride; 1153 } else { 1154 assert(stImage->pt); 1155 /* TODO find good values for block and strides */ 1156 /* TODO also adjust texImage->data for yoffset/xoffset */ 1157 return; 1158 } 1159 1160 if (!texImage->Data) { 1161 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1162 return; 1163 } 1164 1165 assert(xoffset % util_format_get_blockwidth(pformat) == 0); 1166 assert(yoffset % util_format_get_blockheight(pformat) == 0); 1167 1168 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) { 1169 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1170 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y); 1171 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y); 1172 memcpy(dst, src, util_format_get_stride(pformat, width)); 1173 } 1174 1175 if (stImage->pt) { 1176 st_texture_image_unmap(st, stImage); 1177 texImage->Data = NULL; 1178 } 1179} 1180 1181 1182static void 1183st_CompressedTexSubImage3D(struct gl_context *ctx, GLenum target, GLint level, 1184 GLint xoffset, GLint yoffset, GLint zoffset, 1185 GLsizei width, GLint height, GLint depth, 1186 GLenum format, 1187 GLsizei imageSize, const GLvoid *data, 1188 struct gl_texture_object *texObj, 1189 struct gl_texture_image *texImage) 1190{ 1191 assert(0); 1192} 1193 1194 1195 1196/** 1197 * Do a CopyTexSubImage operation using a read transfer from the source, 1198 * a write transfer to the destination and get_tile()/put_tile() to access 1199 * the pixels/texels. 1200 * 1201 * Note: srcY=0=TOP of renderbuffer 1202 */ 1203static void 1204fallback_copy_texsubimage(struct gl_context *ctx, GLenum target, GLint level, 1205 struct st_renderbuffer *strb, 1206 struct st_texture_image *stImage, 1207 GLenum baseFormat, 1208 GLint destX, GLint destY, GLint destZ, 1209 GLint srcX, GLint srcY, 1210 GLsizei width, GLsizei height) 1211{ 1212 struct st_context *st = st_context(ctx); 1213 struct pipe_context *pipe = st->pipe; 1214 struct pipe_transfer *src_trans; 1215 GLvoid *texDest; 1216 enum pipe_transfer_usage transfer_usage; 1217 1218 if (ST_DEBUG & DEBUG_FALLBACK) 1219 debug_printf("%s: fallback processing\n", __FUNCTION__); 1220 1221 assert(width <= MAX_WIDTH); 1222 1223 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1224 srcY = strb->Base.Height - srcY - height; 1225 } 1226 1227 src_trans = pipe_get_transfer(pipe, 1228 strb->texture, 1229 strb->rtt_level, 1230 strb->rtt_face + strb->rtt_slice, 1231 PIPE_TRANSFER_READ, 1232 srcX, srcY, 1233 width, height); 1234 1235 if ((baseFormat == GL_DEPTH_COMPONENT || 1236 baseFormat == GL_DEPTH_STENCIL) && 1237 util_format_is_depth_and_stencil(stImage->pt->format)) 1238 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1239 else 1240 transfer_usage = PIPE_TRANSFER_WRITE; 1241 1242 /* XXX this used to ignore destZ param */ 1243 texDest = st_texture_image_map(st, stImage, destZ, transfer_usage, 1244 destX, destY, width, height); 1245 1246 if (baseFormat == GL_DEPTH_COMPONENT || 1247 baseFormat == GL_DEPTH_STENCIL) { 1248 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1249 ctx->Pixel.DepthBias != 0.0F); 1250 GLint row, yStep; 1251 1252 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1253 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1254 srcY = height - 1; 1255 yStep = -1; 1256 } 1257 else { 1258 srcY = 0; 1259 yStep = 1; 1260 } 1261 1262 /* To avoid a large temp memory allocation, do copy row by row */ 1263 for (row = 0; row < height; row++, srcY += yStep) { 1264 uint data[MAX_WIDTH]; 1265 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data); 1266 if (scaleOrBias) { 1267 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1268 } 1269 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data); 1270 } 1271 } 1272 else { 1273 /* RGBA format */ 1274 GLfloat *tempSrc = 1275 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); 1276 1277 if (tempSrc && texDest) { 1278 const GLint dims = 2; 1279 const GLint dstRowStride = stImage->transfer->stride; 1280 struct gl_texture_image *texImage = &stImage->base; 1281 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1282 1283 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1284 unpack.Invert = GL_TRUE; 1285 } 1286 1287 /* get float/RGBA image from framebuffer */ 1288 /* XXX this usually involves a lot of int/float conversion. 1289 * try to avoid that someday. 1290 */ 1291 pipe_get_tile_rgba_format(pipe, src_trans, 0, 0, width, height, 1292 util_format_linear(strb->texture->format), 1293 tempSrc); 1294 1295 /* Store into texture memory. 1296 * Note that this does some special things such as pixel transfer 1297 * ops and format conversion. In particular, if the dest tex format 1298 * is actually RGBA but the user created the texture as GL_RGB we 1299 * need to fill-in/override the alpha channel with 1.0. 1300 */ 1301 _mesa_texstore(ctx, dims, 1302 texImage->_BaseFormat, 1303 texImage->TexFormat, 1304 texDest, 1305 0, 0, 0, 1306 dstRowStride, 1307 texImage->ImageOffsets, 1308 width, height, 1, 1309 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1310 &unpack); 1311 } 1312 else { 1313 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1314 } 1315 1316 if (tempSrc) 1317 free(tempSrc); 1318 } 1319 1320 st_texture_image_unmap(st, stImage); 1321 pipe->transfer_destroy(pipe, src_trans); 1322} 1323 1324 1325 1326/** 1327 * If the format of the src renderbuffer and the format of the dest 1328 * texture are compatible (in terms of blitting), return a TGSI writemask 1329 * to be used during the blit. 1330 * If the src/dest are incompatible, return 0. 1331 */ 1332static unsigned 1333compatible_src_dst_formats(struct gl_context *ctx, 1334 const struct gl_renderbuffer *src, 1335 const struct gl_texture_image *dst) 1336{ 1337 /* Get logical base formats for the src and dest. 1338 * That is, use the user-requested formats and not the actual, device- 1339 * chosen formats. 1340 * For example, the user may have requested an A8 texture but the 1341 * driver may actually be using an RGBA texture format. When we 1342 * copy/blit to that texture, we only want to copy the Alpha channel 1343 * and not the RGB channels. 1344 * 1345 * Similarly, when the src FBO was created an RGB format may have been 1346 * requested but the driver actually chose an RGBA format. In that case, 1347 * we don't want to copy the undefined Alpha channel to the dest texture 1348 * (it should be 1.0). 1349 */ 1350 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat); 1351 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat); 1352 1353 /** 1354 * XXX when we have red-only and red/green renderbuffers we'll need 1355 * to add more cases here (or implement a general-purpose routine that 1356 * queries the existance of the R,G,B,A channels in the src and dest). 1357 */ 1358 if (srcFormat == dstFormat) { 1359 /* This is the same as matching_base_formats, which should 1360 * always pass, as it did previously. 1361 */ 1362 return TGSI_WRITEMASK_XYZW; 1363 } 1364 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) { 1365 /* Make sure that A in the dest is 1. The actual src format 1366 * may be RGBA and have undefined A values. 1367 */ 1368 return TGSI_WRITEMASK_XYZ; 1369 } 1370 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) { 1371 /* Make sure that A in the dest is 1. The actual dst format 1372 * may be RGBA and will need A=1 to provide proper alpha values 1373 * when sampled later. 1374 */ 1375 return TGSI_WRITEMASK_XYZ; 1376 } 1377 else { 1378 if (ST_DEBUG & DEBUG_FALLBACK) 1379 debug_printf("%s failed for src %s, dst %s\n", 1380 __FUNCTION__, 1381 _mesa_lookup_enum_by_nr(srcFormat), 1382 _mesa_lookup_enum_by_nr(dstFormat)); 1383 1384 /* Otherwise fail. 1385 */ 1386 return 0; 1387 } 1388} 1389 1390 1391 1392/** 1393 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1394 * Note that the region to copy has already been clipped so we know we 1395 * won't read from outside the source renderbuffer's bounds. 1396 * 1397 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1398 */ 1399static void 1400st_copy_texsubimage(struct gl_context *ctx, 1401 GLenum target, GLint level, 1402 GLint destX, GLint destY, GLint destZ, 1403 GLint srcX, GLint srcY, 1404 GLsizei width, GLsizei height) 1405{ 1406 struct gl_texture_unit *texUnit = 1407 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1408 struct gl_texture_object *texObj = 1409 _mesa_select_tex_object(ctx, texUnit, target); 1410 struct gl_texture_image *texImage = 1411 _mesa_select_tex_image(ctx, texObj, target, level); 1412 struct st_texture_image *stImage = st_texture_image(texImage); 1413 const GLenum texBaseFormat = texImage->_BaseFormat; 1414 struct gl_framebuffer *fb = ctx->ReadBuffer; 1415 struct st_renderbuffer *strb; 1416 struct st_context *st = st_context(ctx); 1417 struct pipe_context *pipe = st->pipe; 1418 struct pipe_screen *screen = pipe->screen; 1419 enum pipe_format dest_format, src_format; 1420 GLboolean use_fallback = GL_TRUE; 1421 GLboolean matching_base_formats; 1422 GLuint format_writemask, sample_count; 1423 struct pipe_surface *dest_surface = NULL; 1424 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1425 1426 /* make sure finalize_textures has been called? 1427 */ 1428 if (0) st_validate_state(st); 1429 1430 /* determine if copying depth or color data */ 1431 if (texBaseFormat == GL_DEPTH_COMPONENT || 1432 texBaseFormat == GL_DEPTH_STENCIL) { 1433 strb = st_renderbuffer(fb->_DepthBuffer); 1434 if (strb->Base.Wrapped) { 1435 strb = st_renderbuffer(strb->Base.Wrapped); 1436 } 1437 } 1438 else { 1439 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1440 strb = st_renderbuffer(fb->_ColorReadBuffer); 1441 } 1442 1443 if (!strb || !strb->surface || !stImage->pt) { 1444 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1445 return; 1446 } 1447 1448 sample_count = strb->surface->texture->nr_samples; 1449 /* I believe this would be legal, presumably would need to do a resolve 1450 for color, and for depth/stencil spec says to just use one of the 1451 depth/stencil samples per pixel? Need some transfer clarifications. */ 1452 assert(sample_count < 2); 1453 1454 assert(strb); 1455 assert(strb->surface); 1456 assert(stImage->pt); 1457 1458 src_format = strb->surface->format; 1459 dest_format = stImage->pt->format; 1460 1461 /* 1462 * Determine if the src framebuffer and dest texture have the same 1463 * base format. We need this to detect a case such as the framebuffer 1464 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1465 * texture format stores RGBA we need to set A=1 (overriding the 1466 * framebuffer's alpha values). We can't do that with the blit or 1467 * textured-quad paths. 1468 */ 1469 matching_base_formats = 1470 (_mesa_get_format_base_format(strb->Base.Format) == 1471 _mesa_get_format_base_format(texImage->TexFormat)); 1472 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage); 1473 1474 if (ctx->_ImageTransferState == 0x0) { 1475 1476 if (matching_base_formats && 1477 src_format == dest_format && 1478 !do_flip) 1479 { 1480 /* use surface_copy() / blit */ 1481 struct pipe_box src_box; 1482 u_box_2d_zslice(srcX, srcY, strb->surface->u.tex.first_layer, 1483 width, height, &src_box); 1484 1485 /* for resource_copy_region(), y=0=top, always */ 1486 pipe->resource_copy_region(pipe, 1487 /* dest */ 1488 stImage->pt, 1489 stImage->base.Level, 1490 destX, destY, destZ + stImage->base.Face, 1491 /* src */ 1492 strb->texture, 1493 strb->surface->u.tex.level, 1494 &src_box); 1495 use_fallback = GL_FALSE; 1496 } 1497 else if (format_writemask && 1498 texBaseFormat != GL_DEPTH_COMPONENT && 1499 texBaseFormat != GL_DEPTH_STENCIL && 1500 screen->is_format_supported(screen, src_format, 1501 PIPE_TEXTURE_2D, sample_count, 1502 PIPE_BIND_SAMPLER_VIEW) && 1503 screen->is_format_supported(screen, dest_format, 1504 PIPE_TEXTURE_2D, 0, 1505 PIPE_BIND_RENDER_TARGET)) { 1506 /* draw textured quad to do the copy */ 1507 GLint srcY0, srcY1; 1508 struct pipe_surface surf_tmpl; 1509 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 1510 surf_tmpl.format = util_format_linear(stImage->pt->format); 1511 surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; 1512 surf_tmpl.u.tex.level = stImage->base.Level; 1513 surf_tmpl.u.tex.first_layer = stImage->base.Face + destZ; 1514 surf_tmpl.u.tex.last_layer = stImage->base.Face + destZ; 1515 1516 dest_surface = pipe->create_surface(pipe, stImage->pt, 1517 &surf_tmpl); 1518 1519 if (do_flip) { 1520 srcY1 = strb->Base.Height - srcY - height; 1521 srcY0 = srcY1 + height; 1522 } 1523 else { 1524 srcY0 = srcY; 1525 srcY1 = srcY0 + height; 1526 } 1527 1528 /* Disable conditional rendering. */ 1529 if (st->render_condition) { 1530 pipe->render_condition(pipe, NULL, 0); 1531 } 1532 1533 util_blit_pixels_writemask(st->blit, 1534 strb->texture, 1535 strb->surface->u.tex.level, 1536 srcX, srcY0, 1537 srcX + width, srcY1, 1538 strb->surface->u.tex.first_layer, 1539 dest_surface, 1540 destX, destY, 1541 destX + width, destY + height, 1542 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1543 format_writemask); 1544 1545 /* Restore conditional rendering state. */ 1546 if (st->render_condition) { 1547 pipe->render_condition(pipe, st->render_condition, 1548 st->condition_mode); 1549 } 1550 1551 use_fallback = GL_FALSE; 1552 } 1553 1554 if (dest_surface) 1555 pipe_surface_reference(&dest_surface, NULL); 1556 } 1557 1558 if (use_fallback) { 1559 /* software fallback */ 1560 fallback_copy_texsubimage(ctx, target, level, 1561 strb, stImage, texBaseFormat, 1562 destX, destY, destZ, 1563 srcX, srcY, width, height); 1564 } 1565} 1566 1567 1568 1569static void 1570st_CopyTexSubImage1D(struct gl_context * ctx, GLenum target, GLint level, 1571 GLint xoffset, GLint x, GLint y, GLsizei width) 1572{ 1573 const GLint yoffset = 0, zoffset = 0; 1574 const GLsizei height = 1; 1575 st_copy_texsubimage(ctx, target, level, 1576 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1577 x, y, width, height); /* src X, Y, size */ 1578} 1579 1580 1581static void 1582st_CopyTexSubImage2D(struct gl_context * ctx, GLenum target, GLint level, 1583 GLint xoffset, GLint yoffset, 1584 GLint x, GLint y, GLsizei width, GLsizei height) 1585{ 1586 const GLint zoffset = 0; 1587 st_copy_texsubimage(ctx, target, level, 1588 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1589 x, y, width, height); /* src X, Y, size */ 1590} 1591 1592 1593static void 1594st_CopyTexSubImage3D(struct gl_context * ctx, GLenum target, GLint level, 1595 GLint xoffset, GLint yoffset, GLint zoffset, 1596 GLint x, GLint y, GLsizei width, GLsizei height) 1597{ 1598 st_copy_texsubimage(ctx, target, level, 1599 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1600 x, y, width, height); /* src X, Y, size */ 1601} 1602 1603 1604/** 1605 * Copy image data from stImage into the texture object 'stObj' at level 1606 * 'dstLevel'. 1607 */ 1608static void 1609copy_image_data_to_texture(struct st_context *st, 1610 struct st_texture_object *stObj, 1611 GLuint dstLevel, 1612 struct st_texture_image *stImage) 1613{ 1614 /* debug checks */ 1615 { 1616 const struct gl_texture_image *dstImage = 1617 stObj->base.Image[stImage->base.Face][dstLevel]; 1618 assert(dstImage); 1619 assert(dstImage->Width == stImage->base.Width); 1620 assert(dstImage->Height == stImage->base.Height); 1621 assert(dstImage->Depth == stImage->base.Depth); 1622 } 1623 1624 if (stImage->pt) { 1625 /* Copy potentially with the blitter: 1626 */ 1627 st_texture_image_copy(st->pipe, 1628 stObj->pt, dstLevel, /* dest texture, level */ 1629 stImage->pt, stImage->base.Level, /* src texture, level */ 1630 stImage->base.Face); 1631 1632 pipe_resource_reference(&stImage->pt, NULL); 1633 } 1634 else if (stImage->base.Data) { 1635 st_texture_image_data(st, 1636 stObj->pt, 1637 stImage->base.Face, 1638 dstLevel, 1639 stImage->base.Data, 1640 stImage->base.RowStride * 1641 util_format_get_blocksize(stObj->pt->format), 1642 stImage->base.RowStride * 1643 stImage->base.Height * 1644 util_format_get_blocksize(stObj->pt->format)); 1645 _mesa_align_free(stImage->base.Data); 1646 stImage->base.Data = NULL; 1647 } 1648 1649 pipe_resource_reference(&stImage->pt, stObj->pt); 1650} 1651 1652 1653/** 1654 * Called during state validation. When this function is finished, 1655 * the texture object should be ready for rendering. 1656 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1657 */ 1658GLboolean 1659st_finalize_texture(struct gl_context *ctx, 1660 struct pipe_context *pipe, 1661 struct gl_texture_object *tObj) 1662{ 1663 struct st_context *st = st_context(ctx); 1664 struct st_texture_object *stObj = st_texture_object(tObj); 1665 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1666 GLuint face; 1667 struct st_texture_image *firstImage; 1668 enum pipe_format firstImageFormat; 1669 GLuint ptWidth, ptHeight, ptDepth, ptLayers; 1670 1671 if (stObj->base._Complete) { 1672 /* The texture is complete and we know exactly how many mipmap levels 1673 * are present/needed. This is conditional because we may be called 1674 * from the st_generate_mipmap() function when the texture object is 1675 * incomplete. In that case, we'll have set stObj->lastLevel before 1676 * we get here. 1677 */ 1678 if (stObj->base.Sampler.MinFilter == GL_LINEAR || 1679 stObj->base.Sampler.MinFilter == GL_NEAREST) 1680 stObj->lastLevel = stObj->base.BaseLevel; 1681 else 1682 stObj->lastLevel = stObj->base._MaxLevel; 1683 } 1684 1685 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1686 assert(firstImage); 1687 1688 /* If both firstImage and stObj point to a texture which can contain 1689 * all active images, favour firstImage. Note that because of the 1690 * completeness requirement, we know that the image dimensions 1691 * will match. 1692 */ 1693 if (firstImage->pt && 1694 firstImage->pt != stObj->pt && 1695 (!stObj->pt || firstImage->pt->last_level >= stObj->pt->last_level)) { 1696 pipe_resource_reference(&stObj->pt, firstImage->pt); 1697 pipe_sampler_view_reference(&stObj->sampler_view, NULL); 1698 } 1699 1700 /* Find gallium format for the Mesa texture */ 1701 firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1702 1703 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */ 1704 { 1705 GLuint width, height, depth; 1706 if (!guess_base_level_size(stObj->base.Target, 1707 firstImage->base.Width2, 1708 firstImage->base.Height2, 1709 firstImage->base.Depth2, 1710 firstImage->base.Level, 1711 &width, &height, &depth)) { 1712 width = stObj->width0; 1713 height = stObj->height0; 1714 depth = stObj->depth0; 1715 } 1716 /* convert GL dims to Gallium dims */ 1717 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth, 1718 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 1719 } 1720 1721 /* If we already have a gallium texture, check that it matches the texture 1722 * object's format, target, size, num_levels, etc. 1723 */ 1724 if (stObj->pt) { 1725 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1726 !st_sampler_compat_formats(stObj->pt->format, firstImageFormat) || 1727 stObj->pt->last_level < stObj->lastLevel || 1728 stObj->pt->width0 != ptWidth || 1729 stObj->pt->height0 != ptHeight || 1730 stObj->pt->depth0 != ptDepth || 1731 stObj->pt->array_size != ptLayers) 1732 { 1733 /* The gallium texture does not match the Mesa texture so delete the 1734 * gallium texture now. We'll make a new one below. 1735 */ 1736 pipe_resource_reference(&stObj->pt, NULL); 1737 pipe_sampler_view_reference(&stObj->sampler_view, NULL); 1738 st->dirty.st |= ST_NEW_FRAMEBUFFER; 1739 } 1740 } 1741 1742 /* May need to create a new gallium texture: 1743 */ 1744 if (!stObj->pt) { 1745 GLuint bindings = default_bindings(st, firstImageFormat); 1746 1747 stObj->pt = st_texture_create(st, 1748 gl_target_to_pipe(stObj->base.Target), 1749 firstImageFormat, 1750 stObj->lastLevel, 1751 ptWidth, 1752 ptHeight, 1753 ptDepth, 1754 ptLayers, 1755 bindings); 1756 1757 if (!stObj->pt) { 1758 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1759 return GL_FALSE; 1760 } 1761 } 1762 1763 /* Pull in any images not in the object's texture: 1764 */ 1765 for (face = 0; face < nr_faces; face++) { 1766 GLuint level; 1767 for (level = stObj->base.BaseLevel; level <= stObj->lastLevel; level++) { 1768 struct st_texture_image *stImage = 1769 st_texture_image(stObj->base.Image[face][level]); 1770 1771 /* Need to import images in main memory or held in other textures. 1772 */ 1773 if (stImage && stObj->pt != stImage->pt) { 1774 if (level == 0 || 1775 (stImage->base.Width == u_minify(stObj->width0, level) && 1776 stImage->base.Height == u_minify(stObj->height0, level) && 1777 stImage->base.Depth == u_minify(stObj->depth0, level))) { 1778 /* src image fits expected dest mipmap level size */ 1779 copy_image_data_to_texture(st, stObj, level, stImage); 1780 } 1781 } 1782 } 1783 } 1784 1785 return GL_TRUE; 1786} 1787 1788 1789/** 1790 * Returns pointer to a default/dummy texture. 1791 * This is typically used when the current shader has tex/sample instructions 1792 * but the user has not provided a (any) texture(s). 1793 */ 1794struct gl_texture_object * 1795st_get_default_texture(struct st_context *st) 1796{ 1797 if (!st->default_texture) { 1798 static const GLenum target = GL_TEXTURE_2D; 1799 GLubyte pixels[16][16][4]; 1800 struct gl_texture_object *texObj; 1801 struct gl_texture_image *texImg; 1802 GLuint i, j; 1803 1804 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1805 * when attempting to sample incomplete textures. 1806 */ 1807 for (i = 0; i < 16; i++) { 1808 for (j = 0; j < 16; j++) { 1809 pixels[i][j][0] = 0; 1810 pixels[i][j][1] = 0; 1811 pixels[i][j][2] = 0; 1812 pixels[i][j][3] = 255; 1813 } 1814 } 1815 1816 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1817 1818 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1819 1820 _mesa_init_teximage_fields(st->ctx, target, texImg, 1821 16, 16, 1, 0, /* w, h, d, border */ 1822 GL_RGBA, MESA_FORMAT_RGBA8888); 1823 1824 st_TexImage(st->ctx, 2, target, 1825 0, GL_RGBA, /* level, intformat */ 1826 16, 16, 1, 0, /* w, h, d, border */ 1827 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1828 &st->ctx->DefaultPacking, 1829 texObj, texImg, 1830 0, 0); 1831 1832 texObj->Sampler.MinFilter = GL_NEAREST; 1833 texObj->Sampler.MagFilter = GL_NEAREST; 1834 texObj->_Complete = GL_TRUE; 1835 1836 st->default_texture = texObj; 1837 } 1838 return st->default_texture; 1839} 1840 1841 1842void 1843st_init_texture_functions(struct dd_function_table *functions) 1844{ 1845 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1846 functions->TexImage1D = st_TexImage1D; 1847 functions->TexImage2D = st_TexImage2D; 1848 functions->TexImage3D = st_TexImage3D; 1849 functions->TexSubImage1D = st_TexSubImage1D; 1850 functions->TexSubImage2D = st_TexSubImage2D; 1851 functions->TexSubImage3D = st_TexSubImage3D; 1852 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1853 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1854 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1855 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1856 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1857 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1858 functions->GenerateMipmap = st_generate_mipmap; 1859 1860 functions->GetTexImage = st_GetTexImage; 1861 1862 /* compressed texture functions */ 1863 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1864 functions->GetCompressedTexImage = _mesa_get_compressed_teximage; 1865 1866 functions->NewTextureObject = st_NewTextureObject; 1867 functions->NewTextureImage = st_NewTextureImage; 1868 functions->DeleteTextureImage = st_DeleteTextureImage; 1869 functions->DeleteTexture = st_DeleteTextureObject; 1870 functions->FreeTextureImageBuffer = st_FreeTextureImageBuffer; 1871 functions->MapTextureImage = st_MapTextureImage; 1872 functions->UnmapTextureImage = st_UnmapTextureImage; 1873 1874 functions->TextureMemCpy = do_memcpy; 1875 1876 /* XXX Temporary until we can query pipe's texture sizes */ 1877 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1878} 1879