st_cb_texture.c revision b1ed72ebe2599ec178f51d86fd42f26486b9a19b
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/formats.h" 35#include "main/image.h" 36#include "main/imports.h" 37#include "main/macros.h" 38#include "main/mipmap.h" 39#include "main/pixel.h" 40#include "main/texcompress.h" 41#include "main/texfetch.h" 42#include "main/texformat.h" 43#include "main/texgetimage.h" 44#include "main/teximage.h" 45#include "main/texobj.h" 46#include "main/texstore.h" 47 48#include "state_tracker/st_debug.h" 49#include "state_tracker/st_context.h" 50#include "state_tracker/st_cb_fbo.h" 51#include "state_tracker/st_cb_texture.h" 52#include "state_tracker/st_format.h" 53#include "state_tracker/st_public.h" 54#include "state_tracker/st_texture.h" 55#include "state_tracker/st_gen_mipmap.h" 56#include "state_tracker/st_inlines.h" 57#include "state_tracker/st_atom.h" 58 59#include "pipe/p_context.h" 60#include "pipe/p_defines.h" 61#include "pipe/p_inlines.h" 62#include "pipe/p_shader_tokens.h" 63#include "util/u_tile.h" 64#include "util/u_blit.h" 65#include "util/u_format.h" 66#include "util/u_surface.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); 127 128 _mesa_delete_texture_object(ctx, texObj); 129} 130 131 132/** called via ctx->Driver.FreeTexImageData() */ 133static void 134st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 135{ 136 struct st_texture_image *stImage = st_texture_image(texImage); 137 138 DBG("%s\n", __FUNCTION__); 139 140 if (stImage->pt) { 141 pipe_texture_reference(&stImage->pt, NULL); 142 } 143 144 if (texImage->Data) { 145 _mesa_align_free(texImage->Data); 146 texImage->Data = NULL; 147 } 148} 149 150 151/** 152 * From linux kernel i386 header files, copes with odd sizes better 153 * than COPY_DWORDS would: 154 * XXX Put this in src/mesa/main/imports.h ??? 155 */ 156#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) 157static INLINE void * 158__memcpy(void *to, const void *from, size_t n) 159{ 160 int d0, d1, d2; 161 __asm__ __volatile__("rep ; movsl\n\t" 162 "testb $2,%b4\n\t" 163 "je 1f\n\t" 164 "movsw\n" 165 "1:\ttestb $1,%b4\n\t" 166 "je 2f\n\t" 167 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 168 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 169 :"memory"); 170 return (to); 171} 172#else 173#define __memcpy(a,b,c) memcpy(a,b,c) 174#endif 175 176 177/** 178 * The system memcpy (at least on ubuntu 5.10) has problems copying 179 * to agp (writecombined) memory from a source which isn't 64-byte 180 * aligned - there is a 4x performance falloff. 181 * 182 * The x86 __memcpy is immune to this but is slightly slower 183 * (10%-ish) than the system memcpy. 184 * 185 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 186 * isn't much faster than x86_memcpy for agp copies. 187 * 188 * TODO: switch dynamically. 189 */ 190static void * 191do_memcpy(void *dest, const void *src, size_t n) 192{ 193 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { 194 return __memcpy(dest, src, n); 195 } 196 else 197 return memcpy(dest, src, n); 198} 199 200 201/** 202 * Return default texture usage bitmask for the given texture format. 203 */ 204static GLuint 205default_usage(enum pipe_format fmt) 206{ 207 GLuint usage = PIPE_TEXTURE_USAGE_SAMPLER; 208 if (util_format_is_depth_or_stencil(fmt)) 209 usage |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL; 210 else 211 usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET; 212 return usage; 213} 214 215 216/** 217 * Allocate a pipe_texture object for the given st_texture_object using 218 * the given st_texture_image to guess the mipmap size/levels. 219 * 220 * [comments...] 221 * Otherwise, store it in memory if (Border != 0) or (any dimension == 222 * 1). 223 * 224 * Otherwise, if max_level >= level >= min_level, create texture with 225 * space for images from min_level down to max_level. 226 * 227 * Otherwise, create texture with space for images from (level 0)..(1x1). 228 * Consider pruning this texture at a validation if the saving is worth it. 229 */ 230static void 231guess_and_alloc_texture(struct st_context *st, 232 struct st_texture_object *stObj, 233 const struct st_texture_image *stImage) 234{ 235 GLuint firstLevel; 236 GLuint lastLevel; 237 GLuint width = stImage->base.Width2; /* size w/out border */ 238 GLuint height = stImage->base.Height2; 239 GLuint depth = stImage->base.Depth2; 240 GLuint i, usage; 241 enum pipe_format fmt; 242 243 DBG("%s\n", __FUNCTION__); 244 245 assert(!stObj->pt); 246 247 if (stObj->pt && 248 (GLint) stImage->level > stObj->base.BaseLevel && 249 (stImage->base.Width == 1 || 250 (stObj->base.Target != GL_TEXTURE_1D && 251 stImage->base.Height == 1) || 252 (stObj->base.Target == GL_TEXTURE_3D && 253 stImage->base.Depth == 1))) 254 return; 255 256 /* If this image disrespects BaseLevel, allocate from level zero. 257 * Usually BaseLevel == 0, so it's unlikely to happen. 258 */ 259 if ((GLint) stImage->level < stObj->base.BaseLevel) 260 firstLevel = 0; 261 else 262 firstLevel = stObj->base.BaseLevel; 263 264 265 /* Figure out image dimensions at start level. 266 */ 267 for (i = stImage->level; i > firstLevel; i--) { 268 if (width != 1) 269 width <<= 1; 270 if (height != 1) 271 height <<= 1; 272 if (depth != 1) 273 depth <<= 1; 274 } 275 276 if (width == 0 || height == 0 || depth == 0) { 277 /* no texture needed */ 278 return; 279 } 280 281 /* Guess a reasonable value for lastLevel. This is probably going 282 * to be wrong fairly often and might mean that we have to look at 283 * resizable buffers, or require that buffers implement lazy 284 * pagetable arrangements. 285 */ 286 if ((stObj->base.MinFilter == GL_NEAREST || 287 stObj->base.MinFilter == GL_LINEAR || 288 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 289 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 290 !stObj->base.GenerateMipmap && 291 stImage->level == firstLevel) { 292 /* only alloc space for a single mipmap level */ 293 lastLevel = firstLevel; 294 } 295 else { 296 /* alloc space for a full mipmap */ 297 GLuint l2width = util_logbase2(width); 298 GLuint l2height = util_logbase2(height); 299 GLuint l2depth = util_logbase2(depth); 300 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 301 } 302 303 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat); 304 305 usage = default_usage(fmt); 306 307 stObj->pt = st_texture_create(st, 308 gl_target_to_pipe(stObj->base.Target), 309 fmt, 310 lastLevel, 311 width, 312 height, 313 depth, 314 usage); 315 316 DBG("%s - success\n", __FUNCTION__); 317} 318 319 320/** 321 * Adjust pixel unpack params and image dimensions to strip off the 322 * texture border. 323 * Gallium doesn't support texture borders. They've seldem been used 324 * and seldom been implemented correctly anyway. 325 * \param unpackNew returns the new pixel unpack parameters 326 */ 327static void 328strip_texture_border(GLint border, 329 GLint *width, GLint *height, GLint *depth, 330 const struct gl_pixelstore_attrib *unpack, 331 struct gl_pixelstore_attrib *unpackNew) 332{ 333 assert(border > 0); /* sanity check */ 334 335 *unpackNew = *unpack; 336 337 if (unpackNew->RowLength == 0) 338 unpackNew->RowLength = *width; 339 340 if (depth && unpackNew->ImageHeight == 0) 341 unpackNew->ImageHeight = *height; 342 343 unpackNew->SkipPixels += border; 344 if (height) 345 unpackNew->SkipRows += border; 346 if (depth) 347 unpackNew->SkipImages += border; 348 349 assert(*width >= 3); 350 *width = *width - 2 * border; 351 if (height && *height >= 3) 352 *height = *height - 2 * border; 353 if (depth && *depth >= 3) 354 *depth = *depth - 2 * border; 355} 356 357 358/** 359 * Try to do texture compression via rendering. If the Gallium driver 360 * can render into a compressed surface this will allow us to do texture 361 * compression. 362 * \return GL_TRUE for success, GL_FALSE for failure 363 */ 364static GLboolean 365compress_with_blit(GLcontext * ctx, 366 GLenum target, GLint level, 367 GLint xoffset, GLint yoffset, GLint zoffset, 368 GLint width, GLint height, GLint depth, 369 GLenum format, GLenum type, const void *pixels, 370 const struct gl_pixelstore_attrib *unpack, 371 struct gl_texture_image *texImage) 372{ 373 const GLuint dstImageOffsets[1] = {0}; 374 struct st_texture_image *stImage = st_texture_image(texImage); 375 struct pipe_screen *screen = ctx->st->pipe->screen; 376 gl_format mesa_format; 377 struct pipe_texture templ; 378 struct pipe_texture *src_tex; 379 struct pipe_surface *dst_surface; 380 struct pipe_transfer *tex_xfer; 381 void *map; 382 383 if (!stImage->pt) { 384 /* XXX: Can this happen? Should we assert? */ 385 return GL_FALSE; 386 } 387 388 /* get destination surface (in the compressed texture) */ 389 dst_surface = screen->get_tex_surface(screen, stImage->pt, 390 stImage->face, stImage->level, 0, 391 PIPE_BUFFER_USAGE_GPU_WRITE); 392 if (!dst_surface) { 393 /* can't render into this format (or other problem) */ 394 return GL_FALSE; 395 } 396 397 /* Choose format for the temporary RGBA texture image. 398 */ 399 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); 400 assert(mesa_format); 401 if (!mesa_format) 402 return GL_FALSE; 403 404 /* Create the temporary source texture 405 */ 406 memset(&templ, 0, sizeof(templ)); 407 templ.target = PIPE_TEXTURE_2D; 408 templ.format = st_mesa_format_to_pipe_format(mesa_format); 409 templ.width0 = width; 410 templ.height0 = height; 411 templ.depth0 = 1; 412 templ.last_level = 0; 413 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 414 src_tex = screen->texture_create(screen, &templ); 415 416 if (!src_tex) 417 return GL_FALSE; 418 419 /* Put user's tex data into the temporary texture 420 */ 421 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex, 422 0, 0, 0, /* face, level are zero */ 423 PIPE_TRANSFER_WRITE, 424 0, 0, width, height); /* x, y, w, h */ 425 map = screen->transfer_map(screen, tex_xfer); 426 427 _mesa_texstore(ctx, 2, GL_RGBA, mesa_format, 428 map, /* dest ptr */ 429 0, 0, 0, /* dest x/y/z offset */ 430 tex_xfer->stride, /* dest row stride (bytes) */ 431 dstImageOffsets, /* image offsets (for 3D only) */ 432 width, height, 1, /* size */ 433 format, type, /* source format/type */ 434 pixels, /* source data */ 435 unpack); /* source data packing */ 436 437 screen->transfer_unmap(screen, tex_xfer); 438 screen->tex_transfer_destroy(tex_xfer); 439 440 /* copy / compress image */ 441 util_blit_pixels_tex(ctx->st->blit, 442 src_tex, /* pipe_texture (src) */ 443 0, 0, /* src x0, y0 */ 444 width, height, /* src x1, y1 */ 445 dst_surface, /* pipe_surface (dst) */ 446 xoffset, yoffset, /* dst x0, y0 */ 447 xoffset + width, /* dst x1 */ 448 yoffset + height, /* dst y1 */ 449 0.0, /* z */ 450 PIPE_TEX_MIPFILTER_NEAREST); 451 452 pipe_surface_reference(&dst_surface, NULL); 453 pipe_texture_reference(&src_tex, NULL); 454 455 return GL_TRUE; 456} 457 458 459/** 460 * Do glTexImage1/2/3D(). 461 */ 462static void 463st_TexImage(GLcontext * ctx, 464 GLint dims, 465 GLenum target, GLint level, 466 GLint internalFormat, 467 GLint width, GLint height, GLint depth, 468 GLint border, 469 GLenum format, GLenum type, const void *pixels, 470 const struct gl_pixelstore_attrib *unpack, 471 struct gl_texture_object *texObj, 472 struct gl_texture_image *texImage, 473 GLsizei imageSize, GLboolean compressed_src) 474{ 475 struct pipe_screen *screen = ctx->st->pipe->screen; 476 struct st_texture_object *stObj = st_texture_object(texObj); 477 struct st_texture_image *stImage = st_texture_image(texImage); 478 GLint postConvWidth, postConvHeight; 479 GLint texelBytes, sizeInBytes; 480 GLuint dstRowStride = 0; 481 struct gl_pixelstore_attrib unpackNB; 482 enum pipe_transfer_usage transfer_usage = 0; 483 484 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 485 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 486 487 /* switch to "normal" */ 488 if (stObj->surface_based) { 489 _mesa_clear_texture_object(ctx, texObj); 490 stObj->surface_based = GL_FALSE; 491 } 492 493 /* gallium does not support texture borders, strip it off */ 494 if (border) { 495 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 496 unpack = &unpackNB; 497 texImage->Width = width; 498 texImage->Height = height; 499 texImage->Depth = depth; 500 texImage->Border = 0; 501 border = 0; 502 } 503 504 postConvWidth = width; 505 postConvHeight = height; 506 507 stImage->face = _mesa_tex_target_to_face(target); 508 stImage->level = level; 509 510#if FEATURE_convolve 511 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 512 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 513 &postConvHeight); 514 } 515#endif 516 517 _mesa_set_fetch_functions(texImage, dims); 518 519 if (_mesa_is_format_compressed(texImage->TexFormat)) { 520 /* must be a compressed format */ 521 texelBytes = 0; 522 } 523 else { 524 texelBytes = _mesa_get_format_bytes(texImage->TexFormat); 525 526 /* Minimum pitch of 32 bytes */ 527 if (postConvWidth * texelBytes < 32) { 528 postConvWidth = 32 / texelBytes; 529 texImage->RowStride = postConvWidth; 530 } 531 532 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 533 /*assert(texImage->RowStride == postConvWidth);*/ 534 } 535 536 /* Release the reference to a potentially orphaned buffer. 537 * Release any old malloced memory. 538 */ 539 if (stImage->pt) { 540 pipe_texture_reference(&stImage->pt, NULL); 541 assert(!texImage->Data); 542 } 543 else if (texImage->Data) { 544 _mesa_align_free(texImage->Data); 545 } 546 547 if (width == 0 || height == 0 || depth == 0) { 548 /* stop after freeing old image */ 549 return; 550 } 551 552 /* If this is the only mipmap level in the texture, could call 553 * bmBufferData with NULL data to free the old block and avoid 554 * waiting on any outstanding fences. 555 */ 556 if (stObj->pt) { 557 if (stObj->teximage_realloc || 558 level > (GLint) stObj->pt->last_level || 559 (stObj->pt->last_level == level && 560 stObj->pt->target != PIPE_TEXTURE_CUBE && 561 !st_texture_match_image(stObj->pt, &stImage->base, 562 stImage->face, stImage->level))) { 563 DBG("release it\n"); 564 pipe_texture_reference(&stObj->pt, NULL); 565 assert(!stObj->pt); 566 stObj->teximage_realloc = FALSE; 567 } 568 } 569 570 if (!stObj->pt) { 571 guess_and_alloc_texture(ctx->st, stObj, stImage); 572 if (!stObj->pt) { 573 /* Probably out of memory. 574 * Try flushing any pending rendering, then retry. 575 */ 576 st_finish(ctx->st); 577 guess_and_alloc_texture(ctx->st, stObj, stImage); 578 if (!stObj->pt) { 579 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 580 return; 581 } 582 } 583 } 584 585 assert(!stImage->pt); 586 587 if (stObj->pt && 588 st_texture_match_image(stObj->pt, &stImage->base, 589 stImage->face, stImage->level)) { 590 591 pipe_texture_reference(&stImage->pt, stObj->pt); 592 assert(stImage->pt); 593 } 594 595 if (!stImage->pt) 596 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 597 598 /* st_CopyTexImage calls this function with pixels == NULL, with 599 * the expectation that the texture will be set up but nothing 600 * more will be done. This is where those calls return: 601 */ 602 if (compressed_src) { 603 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 604 unpack, 605 "glCompressedTexImage"); 606 } 607 else { 608 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 609 format, type, 610 pixels, unpack, "glTexImage"); 611 } 612 613 /* Note: we can't check for pixels==NULL until after we've allocated 614 * memory for the texture. 615 */ 616 617 /* See if we can do texture compression with a blit/render. 618 */ 619 if (!compressed_src && 620 !ctx->Mesa_DXTn && 621 _mesa_is_format_compressed(texImage->TexFormat) && 622 screen->is_format_supported(screen, 623 stImage->pt->format, 624 stImage->pt->target, 625 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 626 if (!pixels) 627 goto done; 628 629 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 630 format, type, pixels, unpack, texImage)) { 631 goto done; 632 } 633 } 634 635 if (stImage->pt) { 636 if (format == GL_DEPTH_COMPONENT && 637 util_format_is_depth_and_stencil(stImage->pt->format)) 638 transfer_usage = PIPE_TRANSFER_READ_WRITE; 639 else 640 transfer_usage = PIPE_TRANSFER_WRITE; 641 642 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 643 transfer_usage, 0, 0, 644 stImage->base.Width, 645 stImage->base.Height); 646 if(stImage->transfer) 647 dstRowStride = stImage->transfer->stride; 648 } 649 else { 650 /* Allocate regular memory and store the image there temporarily. */ 651 if (_mesa_is_format_compressed(texImage->TexFormat)) { 652 sizeInBytes = _mesa_format_image_size(texImage->TexFormat, 653 texImage->Width, 654 texImage->Height, 655 texImage->Depth); 656 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width); 657 assert(dims != 3); 658 } 659 else { 660 dstRowStride = postConvWidth * texelBytes; 661 sizeInBytes = depth * dstRowStride * postConvHeight; 662 } 663 664 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 665 } 666 667 if (!texImage->Data) { 668 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 669 return; 670 } 671 672 if (!pixels) 673 goto done; 674 675 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 676 width, height, depth, width * texelBytes, dstRowStride); 677 678 /* Copy data. Would like to know when it's ok for us to eg. use 679 * the blitter to copy. Or, use the hardware to do the format 680 * conversion and copy: 681 */ 682 if (compressed_src) { 683 memcpy(texImage->Data, pixels, imageSize); 684 } 685 else { 686 const GLuint srcImageStride = 687 _mesa_image_image_stride(unpack, width, height, format, type); 688 GLint i; 689 const GLubyte *src = (const GLubyte *) pixels; 690 691 for (i = 0; i < depth; i++) { 692 if (!_mesa_texstore(ctx, dims, 693 texImage->_BaseFormat, 694 texImage->TexFormat, 695 texImage->Data, 696 0, 0, 0, /* dstX/Y/Zoffset */ 697 dstRowStride, 698 texImage->ImageOffsets, 699 width, height, 1, 700 format, type, src, unpack)) { 701 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 702 } 703 704 if (stImage->pt && i + 1 < depth) { 705 /* unmap this slice */ 706 st_texture_image_unmap(ctx->st, stImage); 707 /* map next slice of 3D texture */ 708 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 709 transfer_usage, 0, 0, 710 stImage->base.Width, 711 stImage->base.Height); 712 src += srcImageStride; 713 } 714 } 715 } 716 717done: 718 _mesa_unmap_teximage_pbo(ctx, unpack); 719 720 if (stImage->pt && texImage->Data) { 721 st_texture_image_unmap(ctx->st, stImage); 722 texImage->Data = NULL; 723 } 724} 725 726 727static void 728st_TexImage3D(GLcontext * ctx, 729 GLenum target, GLint level, 730 GLint internalFormat, 731 GLint width, GLint height, GLint depth, 732 GLint border, 733 GLenum format, GLenum type, const void *pixels, 734 const struct gl_pixelstore_attrib *unpack, 735 struct gl_texture_object *texObj, 736 struct gl_texture_image *texImage) 737{ 738 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 739 border, format, type, pixels, unpack, texObj, texImage, 740 0, GL_FALSE); 741} 742 743 744static void 745st_TexImage2D(GLcontext * ctx, 746 GLenum target, GLint level, 747 GLint internalFormat, 748 GLint width, GLint height, GLint border, 749 GLenum format, GLenum type, const void *pixels, 750 const struct gl_pixelstore_attrib *unpack, 751 struct gl_texture_object *texObj, 752 struct gl_texture_image *texImage) 753{ 754 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 755 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 756} 757 758 759static void 760st_TexImage1D(GLcontext * ctx, 761 GLenum target, GLint level, 762 GLint internalFormat, 763 GLint width, 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, 1, target, level, internalFormat, width, 1, 1, border, 770 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 771} 772 773 774static void 775st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 776 GLint internalFormat, 777 GLint width, GLint height, GLint border, 778 GLsizei imageSize, const GLvoid *data, 779 struct gl_texture_object *texObj, 780 struct gl_texture_image *texImage) 781{ 782 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 783 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 784} 785 786 787 788/** 789 * glGetTexImage() helper: decompress a compressed texture by rendering 790 * a textured quad. Store the results in the user's buffer. 791 */ 792static void 793decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 794 GLenum format, GLenum type, GLvoid *pixels, 795 struct gl_texture_object *texObj, 796 struct gl_texture_image *texImage) 797{ 798 struct pipe_screen *screen = ctx->st->pipe->screen; 799 struct st_texture_image *stImage = st_texture_image(texImage); 800 const GLuint width = texImage->Width; 801 const GLuint height = texImage->Height; 802 struct pipe_surface *dst_surface; 803 struct pipe_texture *dst_texture; 804 struct pipe_transfer *tex_xfer; 805 806 /* create temp / dest surface */ 807 if (!util_create_rgba_surface(screen, width, height, 808 &dst_texture, &dst_surface)) { 809 _mesa_problem(ctx, "util_create_rgba_surface() failed " 810 "in decompress_with_blit()"); 811 return; 812 } 813 814 /* blit/render/decompress */ 815 util_blit_pixels_tex(ctx->st->blit, 816 stImage->pt, /* pipe_texture (src) */ 817 0, 0, /* src x0, y0 */ 818 width, height, /* src x1, y1 */ 819 dst_surface, /* pipe_surface (dst) */ 820 0, 0, /* dst x0, y0 */ 821 width, height, /* dst x1, y1 */ 822 0.0, /* z */ 823 PIPE_TEX_MIPFILTER_NEAREST); 824 825 /* map the dst_surface so we can read from it */ 826 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 827 dst_texture, 0, 0, 0, 828 PIPE_TRANSFER_READ, 829 0, 0, width, height); 830 831 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 832 833 /* copy/pack data into user buffer */ 834 if (st_equal_formats(stImage->pt->format, format, type)) { 835 /* memcpy */ 836 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); 837 ubyte *map = screen->transfer_map(screen, tex_xfer); 838 GLuint row; 839 for (row = 0; row < height; row++) { 840 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 841 height, format, type, row, 0); 842 memcpy(dest, map, bytesPerRow); 843 map += tex_xfer->stride; 844 } 845 screen->transfer_unmap(screen, tex_xfer); 846 } 847 else { 848 /* format translation via floats */ 849 GLuint row; 850 for (row = 0; row < height; row++) { 851 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 852 GLfloat rgba[4 * MAX_WIDTH]; 853 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 854 height, format, type, row, 0); 855 856 if (ST_DEBUG & DEBUG_FALLBACK) 857 debug_printf("%s: fallback format translation\n", __FUNCTION__); 858 859 /* get float[4] rgba row from surface */ 860 pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba); 861 862 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 863 type, dest, &ctx->Pack, transferOps); 864 } 865 } 866 867 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 868 869 /* destroy the temp / dest surface */ 870 util_destroy_rgba_surface(dst_texture, dst_surface); 871} 872 873 874 875/** 876 * Need to map texture image into memory before copying image data, 877 * then unmap it. 878 */ 879static void 880st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 881 GLenum format, GLenum type, GLvoid * pixels, 882 struct gl_texture_object *texObj, 883 struct gl_texture_image *texImage, GLboolean compressed_dst) 884{ 885 struct st_texture_image *stImage = st_texture_image(texImage); 886 const GLuint dstImageStride = 887 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 888 format, type); 889 GLuint depth, i; 890 GLubyte *dest; 891 892 if (stImage->pt && 893 util_format_is_compressed(stImage->pt->format) && 894 !compressed_dst) { 895 /* Need to decompress the texture. 896 * We'll do this by rendering a textured quad. 897 * Note that we only expect RGBA formats (no Z/depth formats). 898 */ 899 decompress_with_blit(ctx, target, level, format, type, pixels, 900 texObj, texImage); 901 return; 902 } 903 904 /* Map */ 905 if (stImage->pt) { 906 /* Image is stored in hardware format in a buffer managed by the 907 * kernel. Need to explicitly map and unmap it. 908 */ 909 unsigned face = _mesa_tex_target_to_face(target); 910 911 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 912 PIPE_TRANSFER_READ); 913 914 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 915 PIPE_TRANSFER_READ, 0, 0, 916 stImage->base.Width, 917 stImage->base.Height); 918 texImage->RowStride = stImage->transfer->stride / util_format_get_blocksize(stImage->pt->format); 919 } 920 else { 921 /* Otherwise, the image should actually be stored in 922 * texImage->Data. This is pretty confusing for 923 * everybody, I'd much prefer to separate the two functions of 924 * texImage->Data - storage for texture images in main memory 925 * and access (ie mappings) of images. In other words, we'd 926 * create a new texImage->Map field and leave Data simply for 927 * storage. 928 */ 929 assert(texImage->Data); 930 } 931 932 depth = texImage->Depth; 933 texImage->Depth = 1; 934 935 dest = (GLubyte *) pixels; 936 937 for (i = 0; i < depth; i++) { 938 if (compressed_dst) { 939 _mesa_get_compressed_teximage(ctx, target, level, dest, 940 texObj, texImage); 941 } 942 else { 943 _mesa_get_teximage(ctx, target, level, format, type, dest, 944 texObj, texImage); 945 } 946 947 if (stImage->pt && i + 1 < depth) { 948 /* unmap this slice */ 949 st_texture_image_unmap(ctx->st, stImage); 950 /* map next slice of 3D texture */ 951 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 952 PIPE_TRANSFER_READ, 0, 0, 953 stImage->base.Width, 954 stImage->base.Height); 955 dest += dstImageStride; 956 } 957 } 958 959 texImage->Depth = depth; 960 961 /* Unmap */ 962 if (stImage->pt) { 963 st_texture_image_unmap(ctx->st, stImage); 964 texImage->Data = NULL; 965 } 966} 967 968 969static void 970st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 971 GLenum format, GLenum type, GLvoid * pixels, 972 struct gl_texture_object *texObj, 973 struct gl_texture_image *texImage) 974{ 975 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 976 GL_FALSE); 977} 978 979 980static void 981st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 982 GLvoid *pixels, 983 struct gl_texture_object *texObj, 984 struct gl_texture_image *texImage) 985{ 986 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 987 GL_TRUE); 988} 989 990 991 992static void 993st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 994 GLint xoffset, GLint yoffset, GLint zoffset, 995 GLint width, GLint height, GLint depth, 996 GLenum format, GLenum type, const void *pixels, 997 const struct gl_pixelstore_attrib *packing, 998 struct gl_texture_object *texObj, 999 struct gl_texture_image *texImage) 1000{ 1001 struct pipe_screen *screen = ctx->st->pipe->screen; 1002 struct st_texture_image *stImage = st_texture_image(texImage); 1003 GLuint dstRowStride; 1004 const GLuint srcImageStride = 1005 _mesa_image_image_stride(packing, width, height, format, type); 1006 GLint i; 1007 const GLubyte *src; 1008 /* init to silence warning only: */ 1009 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1010 1011 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1012 _mesa_lookup_enum_by_nr(target), 1013 level, xoffset, yoffset, width, height); 1014 1015 pixels = 1016 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1017 type, pixels, packing, "glTexSubImage2D"); 1018 if (!pixels) 1019 return; 1020 1021 /* See if we can do texture compression with a blit/render. 1022 */ 1023 if (!ctx->Mesa_DXTn && 1024 _mesa_is_format_compressed(texImage->TexFormat) && 1025 screen->is_format_supported(screen, 1026 stImage->pt->format, 1027 stImage->pt->target, 1028 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1029 if (compress_with_blit(ctx, target, level, 1030 xoffset, yoffset, zoffset, 1031 width, height, depth, 1032 format, type, pixels, packing, texImage)) { 1033 goto done; 1034 } 1035 } 1036 1037 /* Map buffer if necessary. Need to lock to prevent other contexts 1038 * from uploading the buffer under us. 1039 */ 1040 if (stImage->pt) { 1041 unsigned face = _mesa_tex_target_to_face(target); 1042 1043 if (format == GL_DEPTH_COMPONENT && 1044 util_format_is_depth_and_stencil(stImage->pt->format)) 1045 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1046 else 1047 transfer_usage = PIPE_TRANSFER_WRITE; 1048 1049 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1050 transfer_usage); 1051 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1052 transfer_usage, 1053 xoffset, yoffset, 1054 width, height); 1055 } 1056 1057 if (!texImage->Data) { 1058 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1059 goto done; 1060 } 1061 1062 src = (const GLubyte *) pixels; 1063 dstRowStride = stImage->transfer->stride; 1064 1065 for (i = 0; i < depth; i++) { 1066 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat, 1067 texImage->TexFormat, 1068 texImage->Data, 1069 0, 0, 0, 1070 dstRowStride, 1071 texImage->ImageOffsets, 1072 width, height, 1, 1073 format, type, src, packing)) { 1074 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1075 } 1076 1077 if (stImage->pt && i + 1 < depth) { 1078 /* unmap this slice */ 1079 st_texture_image_unmap(ctx->st, stImage); 1080 /* map next slice of 3D texture */ 1081 texImage->Data = st_texture_image_map(ctx->st, stImage, 1082 zoffset + i + 1, 1083 transfer_usage, 1084 xoffset, yoffset, 1085 width, height); 1086 src += srcImageStride; 1087 } 1088 } 1089 1090done: 1091 _mesa_unmap_teximage_pbo(ctx, packing); 1092 1093 if (stImage->pt) { 1094 st_texture_image_unmap(ctx->st, stImage); 1095 texImage->Data = NULL; 1096 } 1097} 1098 1099 1100 1101static void 1102st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1103 GLint xoffset, GLint yoffset, GLint zoffset, 1104 GLsizei width, GLsizei height, GLsizei depth, 1105 GLenum format, GLenum type, 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, 3, target, level, xoffset, yoffset, zoffset, 1111 width, height, depth, format, type, 1112 pixels, packing, texObj, texImage); 1113} 1114 1115 1116static void 1117st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1118 GLint xoffset, GLint yoffset, 1119 GLsizei width, GLsizei height, 1120 GLenum format, GLenum type, const GLvoid * pixels, 1121 const struct gl_pixelstore_attrib *packing, 1122 struct gl_texture_object *texObj, 1123 struct gl_texture_image *texImage) 1124{ 1125 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1126 width, height, 1, format, type, 1127 pixels, packing, texObj, texImage); 1128} 1129 1130 1131static void 1132st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1133 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1134 const GLvoid * pixels, 1135 const struct gl_pixelstore_attrib *packing, 1136 struct gl_texture_object *texObj, 1137 struct gl_texture_image *texImage) 1138{ 1139 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1140 format, type, pixels, packing, texObj, texImage); 1141} 1142 1143 1144static void 1145st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1146 GLint xoffset, GLsizei width, 1147 GLenum format, 1148 GLsizei imageSize, const GLvoid *data, 1149 struct gl_texture_object *texObj, 1150 struct gl_texture_image *texImage) 1151{ 1152 assert(0); 1153} 1154 1155 1156static void 1157st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1158 GLint xoffset, GLint yoffset, 1159 GLsizei width, GLint height, 1160 GLenum format, 1161 GLsizei imageSize, const GLvoid *data, 1162 struct gl_texture_object *texObj, 1163 struct gl_texture_image *texImage) 1164{ 1165 struct st_texture_image *stImage = st_texture_image(texImage); 1166 int srcBlockStride; 1167 int dstBlockStride; 1168 int y; 1169 enum pipe_format pformat= stImage->pt->format; 1170 1171 if (stImage->pt) { 1172 unsigned face = _mesa_tex_target_to_face(target); 1173 1174 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1175 PIPE_TRANSFER_WRITE); 1176 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1177 PIPE_TRANSFER_WRITE, 1178 xoffset, yoffset, 1179 width, height); 1180 1181 srcBlockStride = util_format_get_stride(pformat, width); 1182 dstBlockStride = stImage->transfer->stride; 1183 } else { 1184 assert(stImage->pt); 1185 /* TODO find good values for block and strides */ 1186 /* TODO also adjust texImage->data for yoffset/xoffset */ 1187 return; 1188 } 1189 1190 if (!texImage->Data) { 1191 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1192 return; 1193 } 1194 1195 assert(xoffset % util_format_get_blockwidth(pformat) == 0); 1196 assert(yoffset % util_format_get_blockheight(pformat) == 0); 1197 assert(width % util_format_get_blockwidth(pformat) == 0); 1198 assert(height % util_format_get_blockheight(pformat) == 0); 1199 1200 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) { 1201 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1202 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y); 1203 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y); 1204 memcpy(dst, src, util_format_get_stride(pformat, width)); 1205 } 1206 1207 if (stImage->pt) { 1208 st_texture_image_unmap(ctx->st, stImage); 1209 texImage->Data = NULL; 1210 } 1211} 1212 1213 1214static void 1215st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1216 GLint xoffset, GLint yoffset, GLint zoffset, 1217 GLsizei width, GLint height, GLint depth, 1218 GLenum format, 1219 GLsizei imageSize, const GLvoid *data, 1220 struct gl_texture_object *texObj, 1221 struct gl_texture_image *texImage) 1222{ 1223 assert(0); 1224} 1225 1226 1227 1228/** 1229 * Do a CopyTexSubImage operation using a read transfer from the source, 1230 * a write transfer to the destination and get_tile()/put_tile() to access 1231 * the pixels/texels. 1232 * 1233 * Note: srcY=0=TOP of renderbuffer 1234 */ 1235static void 1236fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1237 struct st_renderbuffer *strb, 1238 struct st_texture_image *stImage, 1239 GLenum baseFormat, 1240 GLint destX, GLint destY, GLint destZ, 1241 GLint srcX, GLint srcY, 1242 GLsizei width, GLsizei height) 1243{ 1244 struct pipe_context *pipe = ctx->st->pipe; 1245 struct pipe_screen *screen = pipe->screen; 1246 struct pipe_transfer *src_trans; 1247 GLvoid *texDest; 1248 enum pipe_transfer_usage transfer_usage; 1249 1250 if (ST_DEBUG & DEBUG_FALLBACK) 1251 debug_printf("%s: fallback processing\n", __FUNCTION__); 1252 1253 assert(width <= MAX_WIDTH); 1254 1255 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1256 srcY = strb->Base.Height - srcY - height; 1257 } 1258 1259 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1260 strb->texture, 1261 0, 0, 0, 1262 PIPE_TRANSFER_READ, 1263 srcX, srcY, 1264 width, height); 1265 1266 if ((baseFormat == GL_DEPTH_COMPONENT || 1267 baseFormat == GL_DEPTH_STENCIL) && 1268 util_format_is_depth_and_stencil(stImage->pt->format)) 1269 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1270 else 1271 transfer_usage = PIPE_TRANSFER_WRITE; 1272 1273 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1274 transfer_usage); 1275 1276 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1277 destX, destY, width, height); 1278 1279 if (baseFormat == GL_DEPTH_COMPONENT || 1280 baseFormat == GL_DEPTH_STENCIL) { 1281 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1282 ctx->Pixel.DepthBias != 0.0F); 1283 GLint row, yStep; 1284 1285 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1286 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1287 srcY = height - 1; 1288 yStep = -1; 1289 } 1290 else { 1291 srcY = 0; 1292 yStep = 1; 1293 } 1294 1295 /* To avoid a large temp memory allocation, do copy row by row */ 1296 for (row = 0; row < height; row++, srcY += yStep) { 1297 uint data[MAX_WIDTH]; 1298 pipe_get_tile_z(src_trans, 0, srcY, width, 1, data); 1299 if (scaleOrBias) { 1300 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1301 } 1302 pipe_put_tile_z(stImage->transfer, 0, row, width, 1, data); 1303 } 1304 } 1305 else { 1306 /* RGBA format */ 1307 GLfloat *tempSrc = 1308 (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); 1309 1310 if (tempSrc && texDest) { 1311 const GLint dims = 2; 1312 const GLint dstRowStride = stImage->transfer->stride; 1313 struct gl_texture_image *texImage = &stImage->base; 1314 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1315 1316 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1317 unpack.Invert = GL_TRUE; 1318 } 1319 1320 /* get float/RGBA image from framebuffer */ 1321 /* XXX this usually involves a lot of int/float conversion. 1322 * try to avoid that someday. 1323 */ 1324 pipe_get_tile_rgba(src_trans, 0, 0, width, height, tempSrc); 1325 1326 /* Store into texture memory. 1327 * Note that this does some special things such as pixel transfer 1328 * ops and format conversion. In particular, if the dest tex format 1329 * is actually RGBA but the user created the texture as GL_RGB we 1330 * need to fill-in/override the alpha channel with 1.0. 1331 */ 1332 _mesa_texstore(ctx, dims, 1333 texImage->_BaseFormat, 1334 texImage->TexFormat, 1335 texDest, 1336 0, 0, 0, 1337 dstRowStride, 1338 texImage->ImageOffsets, 1339 width, height, 1, 1340 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1341 &unpack); 1342 } 1343 else { 1344 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1345 } 1346 1347 if (tempSrc) 1348 _mesa_free(tempSrc); 1349 } 1350 1351 st_texture_image_unmap(ctx->st, stImage); 1352 screen->tex_transfer_destroy(src_trans); 1353} 1354 1355 1356static unsigned 1357compatible_src_dst_formats(const struct gl_renderbuffer *src, 1358 const struct gl_texture_image *dst) 1359{ 1360 const GLenum srcFormat = _mesa_get_format_base_format(src->Format); 1361 const GLenum dstLogicalFormat = _mesa_get_format_base_format(dst->TexFormat); 1362 1363 if (srcFormat == dstLogicalFormat) { 1364 /* This is the same as matching_base_formats, which should 1365 * always pass, as it did previously. 1366 */ 1367 return TGSI_WRITEMASK_XYZW; 1368 } 1369 else if (srcFormat == GL_RGBA && 1370 dstLogicalFormat == GL_RGB) { 1371 /* Add a single special case to cope with RGBA->RGB transfers, 1372 * setting A to 1.0 to cope with situations where the RGB 1373 * destination is actually stored as RGBA. 1374 */ 1375 return TGSI_WRITEMASK_XYZ; /* A ==> 1.0 */ 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(dstLogicalFormat)); 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(GLcontext *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 pipe_context *pipe = ctx->st->pipe; 1417 struct pipe_screen *screen = pipe->screen; 1418 enum pipe_format dest_format, src_format; 1419 GLboolean use_fallback = GL_TRUE; 1420 GLboolean matching_base_formats; 1421 GLuint format_writemask; 1422 struct pipe_surface *dest_surface = NULL; 1423 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1424 1425 /* any rendering in progress must flushed before we grab the fb image */ 1426 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1427 1428 /* make sure finalize_textures has been called? 1429 */ 1430 if (0) st_validate_state(ctx->st); 1431 1432 /* determine if copying depth or color data */ 1433 if (texBaseFormat == GL_DEPTH_COMPONENT || 1434 texBaseFormat == GL_DEPTH_STENCIL) { 1435 strb = st_renderbuffer(fb->_DepthBuffer); 1436 } 1437 else { 1438 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1439 strb = st_renderbuffer(fb->_ColorReadBuffer); 1440 } 1441 1442 if (!strb || !strb->surface || !stImage->pt) { 1443 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1444 return; 1445 } 1446 1447 if (srcX < 0) { 1448 width -= -srcX; 1449 destX += -srcX; 1450 srcX = 0; 1451 } 1452 1453 if (srcY < 0) { 1454 height -= -srcY; 1455 destY += -srcY; 1456 srcY = 0; 1457 } 1458 1459 if (destX < 0) { 1460 width -= -destX; 1461 srcX += -destX; 1462 destX = 0; 1463 } 1464 1465 if (destY < 0) { 1466 height -= -destY; 1467 srcY += -destY; 1468 destY = 0; 1469 } 1470 1471 if (width < 0 || height < 0) 1472 return; 1473 1474 1475 assert(strb); 1476 assert(strb->surface); 1477 assert(stImage->pt); 1478 1479 src_format = strb->surface->format; 1480 dest_format = stImage->pt->format; 1481 1482 /* 1483 * Determine if the src framebuffer and dest texture have the same 1484 * base format. We need this to detect a case such as the framebuffer 1485 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1486 * texture format stores RGBA we need to set A=1 (overriding the 1487 * framebuffer's alpha values). We can't do that with the blit or 1488 * textured-quad paths. 1489 */ 1490 matching_base_formats = 1491 (_mesa_get_format_base_format(strb->Base.Format) == 1492 _mesa_get_format_base_format(texImage->TexFormat)); 1493 format_writemask = compatible_src_dst_formats(&strb->Base, texImage); 1494 1495 if (ctx->_ImageTransferState == 0x0) { 1496 1497 if (pipe->surface_copy && 1498 matching_base_formats && 1499 src_format == dest_format && 1500 !do_flip) 1501 { 1502 /* use surface_copy() / blit */ 1503 1504 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1505 stImage->face, stImage->level, 1506 destZ, 1507 PIPE_BUFFER_USAGE_GPU_WRITE); 1508 1509 /* for surface_copy(), y=0=top, always */ 1510 pipe->surface_copy(pipe, 1511 /* dest */ 1512 dest_surface, 1513 destX, destY, 1514 /* src */ 1515 strb->surface, 1516 srcX, srcY, 1517 /* size */ 1518 width, height); 1519 use_fallback = GL_FALSE; 1520 } 1521 else if (format_writemask && 1522 texBaseFormat != GL_DEPTH_COMPONENT && 1523 texBaseFormat != GL_DEPTH_STENCIL && 1524 screen->is_format_supported(screen, src_format, 1525 PIPE_TEXTURE_2D, 1526 PIPE_TEXTURE_USAGE_SAMPLER, 1527 0) && 1528 screen->is_format_supported(screen, dest_format, 1529 PIPE_TEXTURE_2D, 1530 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1531 0)) { 1532 /* draw textured quad to do the copy */ 1533 GLint srcY0, srcY1; 1534 1535 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1536 stImage->face, stImage->level, 1537 destZ, 1538 PIPE_BUFFER_USAGE_GPU_WRITE); 1539 1540 if (do_flip) { 1541 srcY1 = strb->Base.Height - srcY - height; 1542 srcY0 = srcY1 + height; 1543 } 1544 else { 1545 srcY0 = srcY; 1546 srcY1 = srcY0 + height; 1547 } 1548 util_blit_pixels_writemask(ctx->st->blit, 1549 strb->surface, 1550 srcX, srcY0, 1551 srcX + width, srcY1, 1552 dest_surface, 1553 destX, destY, 1554 destX + width, destY + height, 1555 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1556 format_writemask); 1557 use_fallback = GL_FALSE; 1558 } 1559 1560 if (dest_surface) 1561 pipe_surface_reference(&dest_surface, NULL); 1562 } 1563 1564 if (use_fallback) { 1565 /* software fallback */ 1566 fallback_copy_texsubimage(ctx, target, level, 1567 strb, stImage, texBaseFormat, 1568 destX, destY, destZ, 1569 srcX, srcY, width, height); 1570 } 1571} 1572 1573 1574 1575static void 1576st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1577 GLenum internalFormat, 1578 GLint x, GLint y, GLsizei width, GLint border) 1579{ 1580 struct gl_texture_unit *texUnit = 1581 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1582 struct gl_texture_object *texObj = 1583 _mesa_select_tex_object(ctx, texUnit, target); 1584 struct gl_texture_image *texImage = 1585 _mesa_select_tex_image(ctx, texObj, target, level); 1586 1587 /* Setup or redefine the texture object, texture and texture 1588 * image. Don't populate yet. 1589 */ 1590 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1591 width, border, 1592 GL_RGBA, CHAN_TYPE, NULL, 1593 &ctx->DefaultPacking, texObj, texImage); 1594 1595 st_copy_texsubimage(ctx, target, level, 1596 0, 0, 0, /* destX,Y,Z */ 1597 x, y, width, 1); /* src X, Y, size */ 1598} 1599 1600 1601static void 1602st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1603 GLenum internalFormat, 1604 GLint x, GLint y, GLsizei width, GLsizei height, 1605 GLint border) 1606{ 1607 struct gl_texture_unit *texUnit = 1608 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1609 struct gl_texture_object *texObj = 1610 _mesa_select_tex_object(ctx, texUnit, target); 1611 struct gl_texture_image *texImage = 1612 _mesa_select_tex_image(ctx, texObj, target, level); 1613 1614 /* Setup or redefine the texture object, texture and texture 1615 * image. Don't populate yet. 1616 */ 1617 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1618 width, height, border, 1619 GL_RGBA, CHAN_TYPE, NULL, 1620 &ctx->DefaultPacking, texObj, texImage); 1621 1622 st_copy_texsubimage(ctx, target, level, 1623 0, 0, 0, /* destX,Y,Z */ 1624 x, y, width, height); /* src X, Y, size */ 1625} 1626 1627 1628static void 1629st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1630 GLint xoffset, GLint x, GLint y, GLsizei width) 1631{ 1632 const GLint yoffset = 0, zoffset = 0; 1633 const GLsizei height = 1; 1634 st_copy_texsubimage(ctx, target, level, 1635 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1636 x, y, width, height); /* src X, Y, size */ 1637} 1638 1639 1640static void 1641st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1642 GLint xoffset, GLint yoffset, 1643 GLint x, GLint y, GLsizei width, GLsizei height) 1644{ 1645 const GLint zoffset = 0; 1646 st_copy_texsubimage(ctx, target, level, 1647 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1648 x, y, width, height); /* src X, Y, size */ 1649} 1650 1651 1652static void 1653st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1654 GLint xoffset, GLint yoffset, GLint zoffset, 1655 GLint x, GLint y, GLsizei width, GLsizei height) 1656{ 1657 st_copy_texsubimage(ctx, target, level, 1658 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1659 x, y, width, height); /* src X, Y, size */ 1660} 1661 1662 1663static void 1664copy_image_data_to_texture(struct st_context *st, 1665 struct st_texture_object *stObj, 1666 GLuint dstLevel, 1667 struct st_texture_image *stImage) 1668{ 1669 if (stImage->pt) { 1670 /* Copy potentially with the blitter: 1671 */ 1672 st_texture_image_copy(st->pipe, 1673 stObj->pt, dstLevel, /* dest texture, level */ 1674 stImage->pt, /* src texture */ 1675 stImage->face 1676 ); 1677 1678 pipe_texture_reference(&stImage->pt, NULL); 1679 } 1680 else if (stImage->base.Data) { 1681 /* More straightforward upload. 1682 */ 1683 1684 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1685 PIPE_TRANSFER_WRITE); 1686 1687 1688 st_texture_image_data(st, 1689 stObj->pt, 1690 stImage->face, 1691 dstLevel, 1692 stImage->base.Data, 1693 stImage->base.RowStride * 1694 util_format_get_blocksize(stObj->pt->format), 1695 stImage->base.RowStride * 1696 stImage->base.Height * 1697 util_format_get_blocksize(stObj->pt->format)); 1698 _mesa_align_free(stImage->base.Data); 1699 stImage->base.Data = NULL; 1700 } 1701 1702 pipe_texture_reference(&stImage->pt, stObj->pt); 1703} 1704 1705 1706/** 1707 * Called during state validation. When this function is finished, 1708 * the texture object should be ready for rendering. 1709 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1710 */ 1711GLboolean 1712st_finalize_texture(GLcontext *ctx, 1713 struct pipe_context *pipe, 1714 struct gl_texture_object *tObj, 1715 GLboolean *needFlush) 1716{ 1717 struct st_texture_object *stObj = st_texture_object(tObj); 1718 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1719 GLuint blockSize, face; 1720 struct st_texture_image *firstImage; 1721 1722 *needFlush = GL_FALSE; 1723 1724 if (stObj->base._Complete) { 1725 /* The texture is complete and we know exactly how many mipmap levels 1726 * are present/needed. This is conditional because we may be called 1727 * from the st_generate_mipmap() function when the texture object is 1728 * incomplete. In that case, we'll have set stObj->lastLevel before 1729 * we get here. 1730 */ 1731 if (stObj->base.MinFilter == GL_LINEAR || 1732 stObj->base.MinFilter == GL_NEAREST) 1733 stObj->lastLevel = stObj->base.BaseLevel; 1734 else 1735 stObj->lastLevel = stObj->base._MaxLevel - stObj->base.BaseLevel; 1736 } 1737 1738 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1739 1740 /* If both firstImage and stObj point to a texture which can contain 1741 * all active images, favour firstImage. Note that because of the 1742 * completeness requirement, we know that the image dimensions 1743 * will match. 1744 */ 1745 if (firstImage->pt && 1746 firstImage->pt != stObj->pt && 1747 firstImage->pt->last_level >= stObj->lastLevel) { 1748 pipe_texture_reference(&stObj->pt, firstImage->pt); 1749 } 1750 1751 /* bytes per pixel block (blocks are usually 1x1) */ 1752 blockSize = _mesa_get_format_bytes(firstImage->base.TexFormat); 1753 1754 /* If we already have a gallium texture, check that it matches the texture 1755 * object's format, target, size, num_levels, etc. 1756 */ 1757 if (stObj->pt) { 1758 const enum pipe_format fmt = 1759 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1760 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1761 stObj->pt->format != fmt || 1762 stObj->pt->last_level < stObj->lastLevel || 1763 stObj->pt->width0 != firstImage->base.Width2 || 1764 stObj->pt->height0 != firstImage->base.Height2 || 1765 stObj->pt->depth0 != firstImage->base.Depth2) 1766 { 1767 pipe_texture_reference(&stObj->pt, NULL); 1768 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1769 } 1770 } 1771 1772 /* May need to create a new gallium texture: 1773 */ 1774 if (!stObj->pt) { 1775 const enum pipe_format fmt = 1776 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1777 GLuint usage = default_usage(fmt); 1778 1779 stObj->pt = st_texture_create(ctx->st, 1780 gl_target_to_pipe(stObj->base.Target), 1781 fmt, 1782 stObj->lastLevel, 1783 firstImage->base.Width2, 1784 firstImage->base.Height2, 1785 firstImage->base.Depth2, 1786 usage); 1787 1788 if (!stObj->pt) { 1789 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1790 return GL_FALSE; 1791 } 1792 } 1793 1794 /* Pull in any images not in the object's texture: 1795 */ 1796 for (face = 0; face < nr_faces; face++) { 1797 GLuint level; 1798 for (level = 0; level <= stObj->lastLevel; level++) { 1799 struct st_texture_image *stImage = 1800 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1801 1802 /* Need to import images in main memory or held in other textures. 1803 */ 1804 if (stImage && stObj->pt != stImage->pt) { 1805 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1806 *needFlush = GL_TRUE; 1807 } 1808 } 1809 } 1810 1811 return GL_TRUE; 1812} 1813 1814 1815/** 1816 * Returns pointer to a default/dummy texture. 1817 * This is typically used when the current shader has tex/sample instructions 1818 * but the user has not provided a (any) texture(s). 1819 */ 1820struct gl_texture_object * 1821st_get_default_texture(struct st_context *st) 1822{ 1823 if (!st->default_texture) { 1824 static const GLenum target = GL_TEXTURE_2D; 1825 GLubyte pixels[16][16][4]; 1826 struct gl_texture_object *texObj; 1827 struct gl_texture_image *texImg; 1828 GLuint i, j; 1829 1830 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1831 * when attempting to sample incomplete textures. 1832 */ 1833 for (i = 0; i < 16; i++) { 1834 for (j = 0; j < 16; j++) { 1835 pixels[i][j][0] = 0; 1836 pixels[i][j][1] = 0; 1837 pixels[i][j][2] = 0; 1838 pixels[i][j][3] = 255; 1839 } 1840 } 1841 1842 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1843 1844 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1845 1846 _mesa_init_teximage_fields(st->ctx, target, texImg, 1847 16, 16, 1, 0, /* w, h, d, border */ 1848 GL_RGBA); 1849 1850 st_TexImage(st->ctx, 2, target, 1851 0, GL_RGBA, /* level, intformat */ 1852 16, 16, 1, 0, /* w, h, d, border */ 1853 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1854 &st->ctx->DefaultPacking, 1855 texObj, texImg, 1856 0, 0); 1857 1858 texObj->MinFilter = GL_NEAREST; 1859 texObj->MagFilter = GL_NEAREST; 1860 texObj->_Complete = GL_TRUE; 1861 1862 st->default_texture = texObj; 1863 } 1864 return st->default_texture; 1865} 1866 1867 1868void 1869st_init_texture_functions(struct dd_function_table *functions) 1870{ 1871 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1872 functions->TexImage1D = st_TexImage1D; 1873 functions->TexImage2D = st_TexImage2D; 1874 functions->TexImage3D = st_TexImage3D; 1875 functions->TexSubImage1D = st_TexSubImage1D; 1876 functions->TexSubImage2D = st_TexSubImage2D; 1877 functions->TexSubImage3D = st_TexSubImage3D; 1878 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1879 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1880 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1881 functions->CopyTexImage1D = st_CopyTexImage1D; 1882 functions->CopyTexImage2D = st_CopyTexImage2D; 1883 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1884 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1885 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1886 functions->GenerateMipmap = st_generate_mipmap; 1887 1888 functions->GetTexImage = st_GetTexImage; 1889 1890 /* compressed texture functions */ 1891 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1892 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1893 1894 functions->NewTextureObject = st_NewTextureObject; 1895 functions->NewTextureImage = st_NewTextureImage; 1896 functions->DeleteTexture = st_DeleteTextureObject; 1897 functions->FreeTexImageData = st_FreeTextureImageData; 1898 functions->UpdateTexturePalette = 0; 1899 1900 functions->TextureMemCpy = do_memcpy; 1901 1902 /* XXX Temporary until we can query pipe's texture sizes */ 1903 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1904} 1905