st_cb_texture.c revision 45dac0d82a5a69166e86dce77c2550f7512c541e
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28#include "main/mfeatures.h" 29#include "main/bufferobj.h" 30#if FEATURE_convolve 31#include "main/convolve.h" 32#endif 33#include "main/enums.h" 34#include "main/fbobject.h" 35#include "main/formats.h" 36#include "main/image.h" 37#include "main/imports.h" 38#include "main/macros.h" 39#include "main/mipmap.h" 40#include "main/texcompress.h" 41#include "main/texfetch.h" 42#include "main/texgetimage.h" 43#include "main/teximage.h" 44#include "main/texobj.h" 45#include "main/texstore.h" 46 47#include "state_tracker/st_debug.h" 48#include "state_tracker/st_context.h" 49#include "state_tracker/st_cb_fbo.h" 50#include "state_tracker/st_cb_texture.h" 51#include "state_tracker/st_format.h" 52#include "state_tracker/st_public.h" 53#include "state_tracker/st_texture.h" 54#include "state_tracker/st_gen_mipmap.h" 55#include "state_tracker/st_inlines.h" 56#include "state_tracker/st_atom.h" 57 58#include "pipe/p_context.h" 59#include "pipe/p_defines.h" 60#include "util/u_inlines.h" 61#include "pipe/p_shader_tokens.h" 62#include "util/u_tile.h" 63#include "util/u_blit.h" 64#include "util/u_format.h" 65#include "util/u_surface.h" 66#include "util/u_math.h" 67 68 69#define DBG if (0) printf 70 71 72static enum pipe_texture_target 73gl_target_to_pipe(GLenum target) 74{ 75 switch (target) { 76 case GL_TEXTURE_1D: 77 return PIPE_TEXTURE_1D; 78 79 case GL_TEXTURE_2D: 80 case GL_TEXTURE_RECTANGLE_NV: 81 return PIPE_TEXTURE_2D; 82 83 case GL_TEXTURE_3D: 84 return PIPE_TEXTURE_3D; 85 86 case GL_TEXTURE_CUBE_MAP_ARB: 87 return PIPE_TEXTURE_CUBE; 88 89 default: 90 assert(0); 91 return 0; 92 } 93} 94 95 96/** called via ctx->Driver.NewTextureImage() */ 97static struct gl_texture_image * 98st_NewTextureImage(GLcontext * ctx) 99{ 100 DBG("%s\n", __FUNCTION__); 101 (void) ctx; 102 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 103} 104 105 106/** called via ctx->Driver.NewTextureObject() */ 107static struct gl_texture_object * 108st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 109{ 110 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 111 112 DBG("%s\n", __FUNCTION__); 113 _mesa_initialize_texture_object(&obj->base, name, target); 114 115 return &obj->base; 116} 117 118/** called via ctx->Driver.DeleteTextureImage() */ 119static void 120st_DeleteTextureObject(GLcontext *ctx, 121 struct gl_texture_object *texObj) 122{ 123 struct st_texture_object *stObj = st_texture_object(texObj); 124 if (stObj->pt) 125 pipe_texture_reference(&stObj->pt, NULL); 126 127 _mesa_delete_texture_object(ctx, texObj); 128} 129 130 131/** called via ctx->Driver.FreeTexImageData() */ 132static void 133st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 134{ 135 struct st_texture_image *stImage = st_texture_image(texImage); 136 137 DBG("%s\n", __FUNCTION__); 138 139 if (stImage->pt) { 140 pipe_texture_reference(&stImage->pt, NULL); 141 } 142 143 if (texImage->Data) { 144 _mesa_align_free(texImage->Data); 145 texImage->Data = NULL; 146 } 147} 148 149 150/** 151 * From linux kernel i386 header files, copes with odd sizes better 152 * than COPY_DWORDS would: 153 * XXX Put this in src/mesa/main/imports.h ??? 154 */ 155#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) 156static INLINE void * 157__memcpy(void *to, const void *from, size_t n) 158{ 159 int d0, d1, d2; 160 __asm__ __volatile__("rep ; movsl\n\t" 161 "testb $2,%b4\n\t" 162 "je 1f\n\t" 163 "movsw\n" 164 "1:\ttestb $1,%b4\n\t" 165 "je 2f\n\t" 166 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 167 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 168 :"memory"); 169 return (to); 170} 171#else 172#define __memcpy(a,b,c) memcpy(a,b,c) 173#endif 174 175 176/** 177 * The system memcpy (at least on ubuntu 5.10) has problems copying 178 * to agp (writecombined) memory from a source which isn't 64-byte 179 * aligned - there is a 4x performance falloff. 180 * 181 * The x86 __memcpy is immune to this but is slightly slower 182 * (10%-ish) than the system memcpy. 183 * 184 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 185 * isn't much faster than x86_memcpy for agp copies. 186 * 187 * TODO: switch dynamically. 188 */ 189static void * 190do_memcpy(void *dest, const void *src, size_t n) 191{ 192 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { 193 return __memcpy(dest, src, n); 194 } 195 else 196 return memcpy(dest, src, n); 197} 198 199 200/** 201 * Return default texture usage bitmask for the given texture format. 202 */ 203static GLuint 204default_usage(enum pipe_format fmt) 205{ 206 GLuint usage = PIPE_TEXTURE_USAGE_SAMPLER; 207 if (util_format_is_depth_or_stencil(fmt)) 208 usage |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL; 209 else 210 usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET; 211 return usage; 212} 213 214 215/** 216 * Allocate a pipe_texture object for the given st_texture_object using 217 * the given st_texture_image to guess the mipmap size/levels. 218 * 219 * [comments...] 220 * Otherwise, store it in memory if (Border != 0) or (any dimension == 221 * 1). 222 * 223 * Otherwise, if max_level >= level >= min_level, create texture with 224 * space for images from min_level down to max_level. 225 * 226 * Otherwise, create texture with space for images from (level 0)..(1x1). 227 * Consider pruning this texture at a validation if the saving is worth it. 228 */ 229static void 230guess_and_alloc_texture(struct st_context *st, 231 struct st_texture_object *stObj, 232 const struct st_texture_image *stImage) 233{ 234 GLuint firstLevel; 235 GLuint lastLevel; 236 GLuint width = stImage->base.Width2; /* size w/out border */ 237 GLuint height = stImage->base.Height2; 238 GLuint depth = stImage->base.Depth2; 239 GLuint i, usage; 240 enum pipe_format fmt; 241 242 DBG("%s\n", __FUNCTION__); 243 244 assert(!stObj->pt); 245 246 if (stObj->pt && 247 (GLint) stImage->level > stObj->base.BaseLevel && 248 (stImage->base.Width == 1 || 249 (stObj->base.Target != GL_TEXTURE_1D && 250 stImage->base.Height == 1) || 251 (stObj->base.Target == GL_TEXTURE_3D && 252 stImage->base.Depth == 1))) 253 return; 254 255 /* If this image disrespects BaseLevel, allocate from level zero. 256 * Usually BaseLevel == 0, so it's unlikely to happen. 257 */ 258 if ((GLint) stImage->level < stObj->base.BaseLevel) 259 firstLevel = 0; 260 else 261 firstLevel = stObj->base.BaseLevel; 262 263 264 /* Figure out image dimensions at start level. 265 */ 266 for (i = stImage->level; i > firstLevel; i--) { 267 if (width != 1) 268 width <<= 1; 269 if (height != 1) 270 height <<= 1; 271 if (depth != 1) 272 depth <<= 1; 273 } 274 275 if (width == 0 || height == 0 || depth == 0) { 276 /* no texture needed */ 277 return; 278 } 279 280 /* Guess a reasonable value for lastLevel. This is probably going 281 * to be wrong fairly often and might mean that we have to look at 282 * resizable buffers, or require that buffers implement lazy 283 * pagetable arrangements. 284 */ 285 if ((stObj->base.MinFilter == GL_NEAREST || 286 stObj->base.MinFilter == GL_LINEAR || 287 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 288 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 289 !stObj->base.GenerateMipmap && 290 stImage->level == firstLevel) { 291 /* only alloc space for a single mipmap level */ 292 lastLevel = firstLevel; 293 } 294 else { 295 /* alloc space for a full mipmap */ 296 GLuint l2width = util_logbase2(width); 297 GLuint l2height = util_logbase2(height); 298 GLuint l2depth = util_logbase2(depth); 299 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 300 } 301 302 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat); 303 304 usage = default_usage(fmt); 305 306 stObj->pt = st_texture_create(st, 307 gl_target_to_pipe(stObj->base.Target), 308 fmt, 309 lastLevel, 310 width, 311 height, 312 depth, 313 usage); 314 315 DBG("%s - success\n", __FUNCTION__); 316} 317 318 319/** 320 * Adjust pixel unpack params and image dimensions to strip off the 321 * texture border. 322 * Gallium doesn't support texture borders. They've seldem been used 323 * and seldom been implemented correctly anyway. 324 * \param unpackNew returns the new pixel unpack parameters 325 */ 326static void 327strip_texture_border(GLint border, 328 GLint *width, GLint *height, GLint *depth, 329 const struct gl_pixelstore_attrib *unpack, 330 struct gl_pixelstore_attrib *unpackNew) 331{ 332 assert(border > 0); /* sanity check */ 333 334 *unpackNew = *unpack; 335 336 if (unpackNew->RowLength == 0) 337 unpackNew->RowLength = *width; 338 339 if (depth && unpackNew->ImageHeight == 0) 340 unpackNew->ImageHeight = *height; 341 342 unpackNew->SkipPixels += border; 343 if (height) 344 unpackNew->SkipRows += border; 345 if (depth) 346 unpackNew->SkipImages += border; 347 348 assert(*width >= 3); 349 *width = *width - 2 * border; 350 if (height && *height >= 3) 351 *height = *height - 2 * border; 352 if (depth && *depth >= 3) 353 *depth = *depth - 2 * border; 354} 355 356 357/** 358 * Try to do texture compression via rendering. If the Gallium driver 359 * can render into a compressed surface this will allow us to do texture 360 * compression. 361 * \return GL_TRUE for success, GL_FALSE for failure 362 */ 363static GLboolean 364compress_with_blit(GLcontext * ctx, 365 GLenum target, GLint level, 366 GLint xoffset, GLint yoffset, GLint zoffset, 367 GLint width, GLint height, GLint depth, 368 GLenum format, GLenum type, const void *pixels, 369 const struct gl_pixelstore_attrib *unpack, 370 struct gl_texture_image *texImage) 371{ 372 const GLuint dstImageOffsets[1] = {0}; 373 struct st_texture_image *stImage = st_texture_image(texImage); 374 struct pipe_screen *screen = ctx->st->pipe->screen; 375 gl_format mesa_format; 376 struct pipe_texture templ; 377 struct pipe_texture *src_tex; 378 struct pipe_surface *dst_surface; 379 struct pipe_transfer *tex_xfer; 380 void *map; 381 382 if (!stImage->pt) { 383 /* XXX: Can this happen? Should we assert? */ 384 return GL_FALSE; 385 } 386 387 /* get destination surface (in the compressed texture) */ 388 dst_surface = screen->get_tex_surface(screen, stImage->pt, 389 stImage->face, stImage->level, 0, 390 PIPE_BUFFER_USAGE_GPU_WRITE); 391 if (!dst_surface) { 392 /* can't render into this format (or other problem) */ 393 return GL_FALSE; 394 } 395 396 /* Choose format for the temporary RGBA texture image. 397 */ 398 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); 399 assert(mesa_format); 400 if (!mesa_format) 401 return GL_FALSE; 402 403 /* Create the temporary source texture 404 */ 405 memset(&templ, 0, sizeof(templ)); 406 templ.target = PIPE_TEXTURE_2D; 407 templ.format = st_mesa_format_to_pipe_format(mesa_format); 408 templ.width0 = width; 409 templ.height0 = height; 410 templ.depth0 = 1; 411 templ.last_level = 0; 412 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 413 src_tex = screen->texture_create(screen, &templ); 414 415 if (!src_tex) 416 return GL_FALSE; 417 418 /* Put user's tex data into the temporary texture 419 */ 420 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex, 421 0, 0, 0, /* face, level are zero */ 422 PIPE_TRANSFER_WRITE, 423 0, 0, width, height); /* x, y, w, h */ 424 map = screen->transfer_map(screen, tex_xfer); 425 426 _mesa_texstore(ctx, 2, GL_RGBA, mesa_format, 427 map, /* dest ptr */ 428 0, 0, 0, /* dest x/y/z offset */ 429 tex_xfer->stride, /* dest row stride (bytes) */ 430 dstImageOffsets, /* image offsets (for 3D only) */ 431 width, height, 1, /* size */ 432 format, type, /* source format/type */ 433 pixels, /* source data */ 434 unpack); /* source data packing */ 435 436 screen->transfer_unmap(screen, tex_xfer); 437 screen->tex_transfer_destroy(tex_xfer); 438 439 /* copy / compress image */ 440 util_blit_pixels_tex(ctx->st->blit, 441 src_tex, /* pipe_texture (src) */ 442 0, 0, /* src x0, y0 */ 443 width, height, /* src x1, y1 */ 444 dst_surface, /* pipe_surface (dst) */ 445 xoffset, yoffset, /* dst x0, y0 */ 446 xoffset + width, /* dst x1 */ 447 yoffset + height, /* dst y1 */ 448 0.0, /* z */ 449 PIPE_TEX_MIPFILTER_NEAREST); 450 451 pipe_surface_reference(&dst_surface, NULL); 452 pipe_texture_reference(&src_tex, NULL); 453 454 return GL_TRUE; 455} 456 457 458/** 459 * Do glTexImage1/2/3D(). 460 */ 461static void 462st_TexImage(GLcontext * ctx, 463 GLint dims, 464 GLenum target, GLint level, 465 GLint internalFormat, 466 GLint width, GLint height, GLint depth, 467 GLint border, 468 GLenum format, GLenum type, const void *pixels, 469 const struct gl_pixelstore_attrib *unpack, 470 struct gl_texture_object *texObj, 471 struct gl_texture_image *texImage, 472 GLsizei imageSize, GLboolean compressed_src) 473{ 474 struct pipe_screen *screen = ctx->st->pipe->screen; 475 struct st_texture_object *stObj = st_texture_object(texObj); 476 struct st_texture_image *stImage = st_texture_image(texImage); 477 GLint postConvWidth, postConvHeight; 478 GLint texelBytes, sizeInBytes; 479 GLuint dstRowStride = 0; 480 struct gl_pixelstore_attrib unpackNB; 481 enum pipe_transfer_usage transfer_usage = 0; 482 483 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 484 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 485 486 /* switch to "normal" */ 487 if (stObj->surface_based) { 488 _mesa_clear_texture_object(ctx, texObj); 489 stObj->surface_based = GL_FALSE; 490 } 491 492 /* gallium does not support texture borders, strip it off */ 493 if (border) { 494 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 495 unpack = &unpackNB; 496 texImage->Width = width; 497 texImage->Height = height; 498 texImage->Depth = depth; 499 texImage->Border = 0; 500 border = 0; 501 } 502 503 postConvWidth = width; 504 postConvHeight = height; 505 506 stImage->face = _mesa_tex_target_to_face(target); 507 stImage->level = level; 508 509#if FEATURE_convolve 510 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 511 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 512 &postConvHeight); 513 } 514#endif 515 516 _mesa_set_fetch_functions(texImage, dims); 517 518 if (_mesa_is_format_compressed(texImage->TexFormat)) { 519 /* must be a compressed format */ 520 texelBytes = 0; 521 } 522 else { 523 texelBytes = _mesa_get_format_bytes(texImage->TexFormat); 524 525 /* Minimum pitch of 32 bytes */ 526 if (postConvWidth * texelBytes < 32) { 527 postConvWidth = 32 / texelBytes; 528 texImage->RowStride = postConvWidth; 529 } 530 531 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 532 /*assert(texImage->RowStride == postConvWidth);*/ 533 } 534 535 /* Release the reference to a potentially orphaned buffer. 536 * Release any old malloced memory. 537 */ 538 if (stImage->pt) { 539 pipe_texture_reference(&stImage->pt, NULL); 540 assert(!texImage->Data); 541 } 542 else if (texImage->Data) { 543 _mesa_align_free(texImage->Data); 544 } 545 546 /* 547 * See if the new image is somehow incompatible with the existing 548 * mipmap. If so, free the old mipmap. 549 */ 550 if (stObj->pt) { 551 if (stObj->teximage_realloc || 552 level > (GLint) stObj->pt->last_level || 553 !st_texture_match_image(stObj->pt, &stImage->base, 554 stImage->face, stImage->level)) { 555 DBG("release it\n"); 556 pipe_texture_reference(&stObj->pt, NULL); 557 assert(!stObj->pt); 558 stObj->teximage_realloc = FALSE; 559 } 560 } 561 562 if (width == 0 || height == 0 || depth == 0) { 563 /* stop after freeing old image */ 564 return; 565 } 566 567 if (!stObj->pt) { 568 guess_and_alloc_texture(ctx->st, stObj, stImage); 569 if (!stObj->pt) { 570 /* Probably out of memory. 571 * Try flushing any pending rendering, then retry. 572 */ 573 st_finish(ctx->st); 574 guess_and_alloc_texture(ctx->st, stObj, stImage); 575 if (!stObj->pt) { 576 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 577 return; 578 } 579 } 580 } 581 582 assert(!stImage->pt); 583 584 if (stObj->pt && 585 st_texture_match_image(stObj->pt, &stImage->base, 586 stImage->face, stImage->level)) { 587 588 pipe_texture_reference(&stImage->pt, stObj->pt); 589 assert(stImage->pt); 590 } 591 592 if (!stImage->pt) 593 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 594 595 /* st_CopyTexImage calls this function with pixels == NULL, with 596 * the expectation that the texture will be set up but nothing 597 * more will be done. This is where those calls return: 598 */ 599 if (compressed_src) { 600 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 601 unpack, 602 "glCompressedTexImage"); 603 } 604 else { 605 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 606 format, type, 607 pixels, unpack, "glTexImage"); 608 } 609 610 /* Note: we can't check for pixels==NULL until after we've allocated 611 * memory for the texture. 612 */ 613 614 /* See if we can do texture compression with a blit/render. 615 */ 616 if (!compressed_src && 617 !ctx->Mesa_DXTn && 618 _mesa_is_format_compressed(texImage->TexFormat) && 619 screen->is_format_supported(screen, 620 stImage->pt->format, 621 stImage->pt->target, 622 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 623 if (!pixels) 624 goto done; 625 626 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 627 format, type, pixels, unpack, texImage)) { 628 goto done; 629 } 630 } 631 632 if (stImage->pt) { 633 if (format == GL_DEPTH_COMPONENT && 634 util_format_is_depth_and_stencil(stImage->pt->format)) 635 transfer_usage = PIPE_TRANSFER_READ_WRITE; 636 else 637 transfer_usage = PIPE_TRANSFER_WRITE; 638 639 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 640 transfer_usage, 0, 0, 641 stImage->base.Width, 642 stImage->base.Height); 643 if(stImage->transfer) 644 dstRowStride = stImage->transfer->stride; 645 } 646 else { 647 /* Allocate regular memory and store the image there temporarily. */ 648 if (_mesa_is_format_compressed(texImage->TexFormat)) { 649 sizeInBytes = _mesa_format_image_size(texImage->TexFormat, 650 texImage->Width, 651 texImage->Height, 652 texImage->Depth); 653 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width); 654 assert(dims != 3); 655 } 656 else { 657 dstRowStride = postConvWidth * texelBytes; 658 sizeInBytes = depth * dstRowStride * postConvHeight; 659 } 660 661 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 662 } 663 664 if (!texImage->Data) { 665 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 666 return; 667 } 668 669 if (!pixels) 670 goto done; 671 672 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 673 width, height, depth, width * texelBytes, dstRowStride); 674 675 /* Copy data. Would like to know when it's ok for us to eg. use 676 * the blitter to copy. Or, use the hardware to do the format 677 * conversion and copy: 678 */ 679 if (compressed_src) { 680 const GLuint srcImageStride = _mesa_format_row_stride(texImage->TexFormat, width); 681 if(dstRowStride == srcImageStride) 682 memcpy(texImage->Data, pixels, imageSize); 683 else 684 { 685 char *dst = texImage->Data; 686 const char *src = pixels; 687 GLuint i, bw, bh, lines; 688 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh); 689 lines = (height + bh - 1) / bh; 690 691 for(i = 0; i < lines; ++i) 692 { 693 memcpy(dst, src, srcImageStride); 694 dst += dstRowStride; 695 src += srcImageStride; 696 } 697 } 698 } 699 else { 700 const GLuint srcImageStride = 701 _mesa_image_image_stride(unpack, width, height, format, type); 702 GLint i; 703 const GLubyte *src = (const GLubyte *) pixels; 704 705 for (i = 0; i < depth; i++) { 706 if (!_mesa_texstore(ctx, dims, 707 texImage->_BaseFormat, 708 texImage->TexFormat, 709 texImage->Data, 710 0, 0, 0, /* dstX/Y/Zoffset */ 711 dstRowStride, 712 texImage->ImageOffsets, 713 width, height, 1, 714 format, type, src, unpack)) { 715 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 716 } 717 718 if (stImage->pt && i + 1 < depth) { 719 /* unmap this slice */ 720 st_texture_image_unmap(ctx->st, stImage); 721 /* map next slice of 3D texture */ 722 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 723 transfer_usage, 0, 0, 724 stImage->base.Width, 725 stImage->base.Height); 726 src += srcImageStride; 727 } 728 } 729 } 730 731done: 732 _mesa_unmap_teximage_pbo(ctx, unpack); 733 734 if (stImage->pt && texImage->Data) { 735 st_texture_image_unmap(ctx->st, stImage); 736 texImage->Data = NULL; 737 } 738} 739 740 741static void 742st_TexImage3D(GLcontext * ctx, 743 GLenum target, GLint level, 744 GLint internalFormat, 745 GLint width, GLint height, GLint depth, 746 GLint border, 747 GLenum format, GLenum type, const void *pixels, 748 const struct gl_pixelstore_attrib *unpack, 749 struct gl_texture_object *texObj, 750 struct gl_texture_image *texImage) 751{ 752 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 753 border, format, type, pixels, unpack, texObj, texImage, 754 0, GL_FALSE); 755} 756 757 758static void 759st_TexImage2D(GLcontext * ctx, 760 GLenum target, GLint level, 761 GLint internalFormat, 762 GLint width, GLint height, GLint border, 763 GLenum format, GLenum type, const void *pixels, 764 const struct gl_pixelstore_attrib *unpack, 765 struct gl_texture_object *texObj, 766 struct gl_texture_image *texImage) 767{ 768 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 769 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 770} 771 772 773static void 774st_TexImage1D(GLcontext * ctx, 775 GLenum target, GLint level, 776 GLint internalFormat, 777 GLint width, GLint border, 778 GLenum format, GLenum type, const void *pixels, 779 const struct gl_pixelstore_attrib *unpack, 780 struct gl_texture_object *texObj, 781 struct gl_texture_image *texImage) 782{ 783 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 784 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 785} 786 787 788static void 789st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 790 GLint internalFormat, 791 GLint width, GLint height, GLint border, 792 GLsizei imageSize, const GLvoid *data, 793 struct gl_texture_object *texObj, 794 struct gl_texture_image *texImage) 795{ 796 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 797 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 798} 799 800 801 802/** 803 * glGetTexImage() helper: decompress a compressed texture by rendering 804 * a textured quad. Store the results in the user's buffer. 805 */ 806static void 807decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 808 GLenum format, GLenum type, GLvoid *pixels, 809 struct gl_texture_object *texObj, 810 struct gl_texture_image *texImage) 811{ 812 struct pipe_screen *screen = ctx->st->pipe->screen; 813 struct st_texture_image *stImage = st_texture_image(texImage); 814 const GLuint width = texImage->Width; 815 const GLuint height = texImage->Height; 816 struct pipe_surface *dst_surface; 817 struct pipe_texture *dst_texture; 818 struct pipe_transfer *tex_xfer; 819 820 /* create temp / dest surface */ 821 if (!util_create_rgba_surface(screen, width, height, 822 &dst_texture, &dst_surface)) { 823 _mesa_problem(ctx, "util_create_rgba_surface() failed " 824 "in decompress_with_blit()"); 825 return; 826 } 827 828 /* blit/render/decompress */ 829 util_blit_pixels_tex(ctx->st->blit, 830 stImage->pt, /* pipe_texture (src) */ 831 0, 0, /* src x0, y0 */ 832 width, height, /* src x1, y1 */ 833 dst_surface, /* pipe_surface (dst) */ 834 0, 0, /* dst x0, y0 */ 835 width, height, /* dst x1, y1 */ 836 0.0, /* z */ 837 PIPE_TEX_MIPFILTER_NEAREST); 838 839 /* map the dst_surface so we can read from it */ 840 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 841 dst_texture, 0, 0, 0, 842 PIPE_TRANSFER_READ, 843 0, 0, width, height); 844 845 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 846 847 /* copy/pack data into user buffer */ 848 if (st_equal_formats(stImage->pt->format, format, type)) { 849 /* memcpy */ 850 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); 851 ubyte *map = screen->transfer_map(screen, tex_xfer); 852 GLuint row; 853 for (row = 0; row < height; row++) { 854 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 855 height, format, type, row, 0); 856 memcpy(dest, map, bytesPerRow); 857 map += tex_xfer->stride; 858 } 859 screen->transfer_unmap(screen, tex_xfer); 860 } 861 else { 862 /* format translation via floats */ 863 GLuint row; 864 for (row = 0; row < height; row++) { 865 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 866 GLfloat rgba[4 * MAX_WIDTH]; 867 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 868 height, format, type, row, 0); 869 870 if (ST_DEBUG & DEBUG_FALLBACK) 871 debug_printf("%s: fallback format translation\n", __FUNCTION__); 872 873 /* get float[4] rgba row from surface */ 874 pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba); 875 876 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 877 type, dest, &ctx->Pack, transferOps); 878 } 879 } 880 881 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 882 883 /* destroy the temp / dest surface */ 884 util_destroy_rgba_surface(dst_texture, dst_surface); 885} 886 887 888 889/** 890 * Need to map texture image into memory before copying image data, 891 * then unmap it. 892 */ 893static void 894st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 895 GLenum format, GLenum type, GLvoid * pixels, 896 struct gl_texture_object *texObj, 897 struct gl_texture_image *texImage, GLboolean compressed_dst) 898{ 899 struct st_texture_image *stImage = st_texture_image(texImage); 900 const GLuint dstImageStride = 901 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 902 format, type); 903 GLuint depth, i; 904 GLubyte *dest; 905 906 if (stImage->pt && 907 util_format_is_compressed(stImage->pt->format) && 908 !compressed_dst) { 909 /* Need to decompress the texture. 910 * We'll do this by rendering a textured quad. 911 * Note that we only expect RGBA formats (no Z/depth formats). 912 */ 913 decompress_with_blit(ctx, target, level, format, type, pixels, 914 texObj, texImage); 915 return; 916 } 917 918 /* Map */ 919 if (stImage->pt) { 920 /* Image is stored in hardware format in a buffer managed by the 921 * kernel. Need to explicitly map and unmap it. 922 */ 923 unsigned face = _mesa_tex_target_to_face(target); 924 925 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 926 PIPE_TRANSFER_READ); 927 928 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 929 PIPE_TRANSFER_READ, 0, 0, 930 stImage->base.Width, 931 stImage->base.Height); 932 texImage->RowStride = stImage->transfer->stride / util_format_get_blocksize(stImage->pt->format); 933 } 934 else { 935 /* Otherwise, the image should actually be stored in 936 * texImage->Data. This is pretty confusing for 937 * everybody, I'd much prefer to separate the two functions of 938 * texImage->Data - storage for texture images in main memory 939 * and access (ie mappings) of images. In other words, we'd 940 * create a new texImage->Map field and leave Data simply for 941 * storage. 942 */ 943 assert(texImage->Data); 944 } 945 946 depth = texImage->Depth; 947 texImage->Depth = 1; 948 949 dest = (GLubyte *) pixels; 950 951 for (i = 0; i < depth; i++) { 952 if (compressed_dst) { 953 _mesa_get_compressed_teximage(ctx, target, level, dest, 954 texObj, texImage); 955 } 956 else { 957 _mesa_get_teximage(ctx, target, level, format, type, dest, 958 texObj, texImage); 959 } 960 961 if (stImage->pt && i + 1 < depth) { 962 /* unmap this slice */ 963 st_texture_image_unmap(ctx->st, stImage); 964 /* map next slice of 3D texture */ 965 texImage->Data = st_texture_image_map(ctx->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 /* Unmap */ 976 if (stImage->pt) { 977 st_texture_image_unmap(ctx->st, stImage); 978 texImage->Data = NULL; 979 } 980} 981 982 983static void 984st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 985 GLenum format, GLenum type, GLvoid * pixels, 986 struct gl_texture_object *texObj, 987 struct gl_texture_image *texImage) 988{ 989 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 990 GL_FALSE); 991} 992 993 994static void 995st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 996 GLvoid *pixels, 997 struct gl_texture_object *texObj, 998 struct gl_texture_image *texImage) 999{ 1000 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1001 GL_TRUE); 1002} 1003 1004 1005 1006static void 1007st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1008 GLint xoffset, GLint yoffset, GLint zoffset, 1009 GLint width, GLint height, GLint depth, 1010 GLenum format, GLenum type, const void *pixels, 1011 const struct gl_pixelstore_attrib *packing, 1012 struct gl_texture_object *texObj, 1013 struct gl_texture_image *texImage) 1014{ 1015 struct pipe_screen *screen = ctx->st->pipe->screen; 1016 struct st_texture_image *stImage = st_texture_image(texImage); 1017 GLuint dstRowStride; 1018 const GLuint srcImageStride = 1019 _mesa_image_image_stride(packing, width, height, format, type); 1020 GLint i; 1021 const GLubyte *src; 1022 /* init to silence warning only: */ 1023 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1024 1025 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1026 _mesa_lookup_enum_by_nr(target), 1027 level, xoffset, yoffset, width, height); 1028 1029 pixels = 1030 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1031 type, pixels, packing, "glTexSubImage2D"); 1032 if (!pixels) 1033 return; 1034 1035 /* See if we can do texture compression with a blit/render. 1036 */ 1037 if (!ctx->Mesa_DXTn && 1038 _mesa_is_format_compressed(texImage->TexFormat) && 1039 screen->is_format_supported(screen, 1040 stImage->pt->format, 1041 stImage->pt->target, 1042 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1043 if (compress_with_blit(ctx, target, level, 1044 xoffset, yoffset, zoffset, 1045 width, height, depth, 1046 format, type, pixels, packing, texImage)) { 1047 goto done; 1048 } 1049 } 1050 1051 /* Map buffer if necessary. Need to lock to prevent other contexts 1052 * from uploading the buffer under us. 1053 */ 1054 if (stImage->pt) { 1055 unsigned face = _mesa_tex_target_to_face(target); 1056 1057 if (format == GL_DEPTH_COMPONENT && 1058 util_format_is_depth_and_stencil(stImage->pt->format)) 1059 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1060 else 1061 transfer_usage = PIPE_TRANSFER_WRITE; 1062 1063 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1064 transfer_usage); 1065 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1066 transfer_usage, 1067 xoffset, yoffset, 1068 width, height); 1069 } 1070 1071 if (!texImage->Data) { 1072 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1073 goto done; 1074 } 1075 1076 src = (const GLubyte *) pixels; 1077 dstRowStride = stImage->transfer->stride; 1078 1079 for (i = 0; i < depth; i++) { 1080 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat, 1081 texImage->TexFormat, 1082 texImage->Data, 1083 0, 0, 0, 1084 dstRowStride, 1085 texImage->ImageOffsets, 1086 width, height, 1, 1087 format, type, src, packing)) { 1088 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1089 } 1090 1091 if (stImage->pt && i + 1 < depth) { 1092 /* unmap this slice */ 1093 st_texture_image_unmap(ctx->st, stImage); 1094 /* map next slice of 3D texture */ 1095 texImage->Data = st_texture_image_map(ctx->st, stImage, 1096 zoffset + i + 1, 1097 transfer_usage, 1098 xoffset, yoffset, 1099 width, height); 1100 src += srcImageStride; 1101 } 1102 } 1103 1104done: 1105 _mesa_unmap_teximage_pbo(ctx, packing); 1106 1107 if (stImage->pt && texImage->Data) { 1108 st_texture_image_unmap(ctx->st, stImage); 1109 texImage->Data = NULL; 1110 } 1111} 1112 1113 1114 1115static void 1116st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1117 GLint xoffset, GLint yoffset, GLint zoffset, 1118 GLsizei width, GLsizei height, GLsizei depth, 1119 GLenum format, GLenum type, const GLvoid *pixels, 1120 const struct gl_pixelstore_attrib *packing, 1121 struct gl_texture_object *texObj, 1122 struct gl_texture_image *texImage) 1123{ 1124 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1125 width, height, depth, format, type, 1126 pixels, packing, texObj, texImage); 1127} 1128 1129 1130static void 1131st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1132 GLint xoffset, GLint yoffset, 1133 GLsizei width, GLsizei height, 1134 GLenum format, GLenum type, 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, 2, target, level, xoffset, yoffset, 0, 1140 width, height, 1, format, type, 1141 pixels, packing, texObj, texImage); 1142} 1143 1144 1145static void 1146st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1147 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1148 const GLvoid * pixels, 1149 const struct gl_pixelstore_attrib *packing, 1150 struct gl_texture_object *texObj, 1151 struct gl_texture_image *texImage) 1152{ 1153 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1154 format, type, pixels, packing, texObj, texImage); 1155} 1156 1157 1158static void 1159st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1160 GLint xoffset, GLsizei width, 1161 GLenum format, 1162 GLsizei imageSize, const GLvoid *data, 1163 struct gl_texture_object *texObj, 1164 struct gl_texture_image *texImage) 1165{ 1166 assert(0); 1167} 1168 1169 1170static void 1171st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1172 GLint xoffset, GLint yoffset, 1173 GLsizei width, GLint height, 1174 GLenum format, 1175 GLsizei imageSize, const GLvoid *data, 1176 struct gl_texture_object *texObj, 1177 struct gl_texture_image *texImage) 1178{ 1179 struct st_texture_image *stImage = st_texture_image(texImage); 1180 int srcBlockStride; 1181 int dstBlockStride; 1182 int y; 1183 enum pipe_format pformat= stImage->pt->format; 1184 1185 if (stImage->pt) { 1186 unsigned face = _mesa_tex_target_to_face(target); 1187 1188 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1189 PIPE_TRANSFER_WRITE); 1190 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1191 PIPE_TRANSFER_WRITE, 1192 xoffset, yoffset, 1193 width, height); 1194 1195 srcBlockStride = util_format_get_stride(pformat, width); 1196 dstBlockStride = stImage->transfer->stride; 1197 } else { 1198 assert(stImage->pt); 1199 /* TODO find good values for block and strides */ 1200 /* TODO also adjust texImage->data for yoffset/xoffset */ 1201 return; 1202 } 1203 1204 if (!texImage->Data) { 1205 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1206 return; 1207 } 1208 1209 assert(xoffset % util_format_get_blockwidth(pformat) == 0); 1210 assert(yoffset % util_format_get_blockheight(pformat) == 0); 1211 assert(width % util_format_get_blockwidth(pformat) == 0); 1212 assert(height % util_format_get_blockheight(pformat) == 0); 1213 1214 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) { 1215 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1216 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y); 1217 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y); 1218 memcpy(dst, src, util_format_get_stride(pformat, width)); 1219 } 1220 1221 if (stImage->pt) { 1222 st_texture_image_unmap(ctx->st, stImage); 1223 texImage->Data = NULL; 1224 } 1225} 1226 1227 1228static void 1229st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1230 GLint xoffset, GLint yoffset, GLint zoffset, 1231 GLsizei width, GLint height, GLint depth, 1232 GLenum format, 1233 GLsizei imageSize, const GLvoid *data, 1234 struct gl_texture_object *texObj, 1235 struct gl_texture_image *texImage) 1236{ 1237 assert(0); 1238} 1239 1240 1241 1242/** 1243 * Do a CopyTexSubImage operation using a read transfer from the source, 1244 * a write transfer to the destination and get_tile()/put_tile() to access 1245 * the pixels/texels. 1246 * 1247 * Note: srcY=0=TOP of renderbuffer 1248 */ 1249static void 1250fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1251 struct st_renderbuffer *strb, 1252 struct st_texture_image *stImage, 1253 GLenum baseFormat, 1254 GLint destX, GLint destY, GLint destZ, 1255 GLint srcX, GLint srcY, 1256 GLsizei width, GLsizei height) 1257{ 1258 struct pipe_context *pipe = ctx->st->pipe; 1259 struct pipe_screen *screen = pipe->screen; 1260 struct pipe_transfer *src_trans; 1261 GLvoid *texDest; 1262 enum pipe_transfer_usage transfer_usage; 1263 1264 if (ST_DEBUG & DEBUG_FALLBACK) 1265 debug_printf("%s: fallback processing\n", __FUNCTION__); 1266 1267 assert(width <= MAX_WIDTH); 1268 1269 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1270 srcY = strb->Base.Height - srcY - height; 1271 } 1272 1273 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1274 strb->texture, 1275 0, 0, 0, 1276 PIPE_TRANSFER_READ, 1277 srcX, srcY, 1278 width, height); 1279 1280 if ((baseFormat == GL_DEPTH_COMPONENT || 1281 baseFormat == GL_DEPTH_STENCIL) && 1282 util_format_is_depth_and_stencil(stImage->pt->format)) 1283 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1284 else 1285 transfer_usage = PIPE_TRANSFER_WRITE; 1286 1287 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1288 transfer_usage); 1289 1290 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1291 destX, destY, width, height); 1292 1293 if (baseFormat == GL_DEPTH_COMPONENT || 1294 baseFormat == GL_DEPTH_STENCIL) { 1295 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1296 ctx->Pixel.DepthBias != 0.0F); 1297 GLint row, yStep; 1298 1299 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1300 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1301 srcY = height - 1; 1302 yStep = -1; 1303 } 1304 else { 1305 srcY = 0; 1306 yStep = 1; 1307 } 1308 1309 /* To avoid a large temp memory allocation, do copy row by row */ 1310 for (row = 0; row < height; row++, srcY += yStep) { 1311 uint data[MAX_WIDTH]; 1312 pipe_get_tile_z(src_trans, 0, srcY, width, 1, data); 1313 if (scaleOrBias) { 1314 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1315 } 1316 pipe_put_tile_z(stImage->transfer, 0, row, width, 1, data); 1317 } 1318 } 1319 else { 1320 /* RGBA format */ 1321 GLfloat *tempSrc = 1322 (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); 1323 1324 if (tempSrc && texDest) { 1325 const GLint dims = 2; 1326 const GLint dstRowStride = stImage->transfer->stride; 1327 struct gl_texture_image *texImage = &stImage->base; 1328 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1329 1330 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1331 unpack.Invert = GL_TRUE; 1332 } 1333 1334 /* get float/RGBA image from framebuffer */ 1335 /* XXX this usually involves a lot of int/float conversion. 1336 * try to avoid that someday. 1337 */ 1338 pipe_get_tile_rgba(src_trans, 0, 0, width, height, tempSrc); 1339 1340 /* Store into texture memory. 1341 * Note that this does some special things such as pixel transfer 1342 * ops and format conversion. In particular, if the dest tex format 1343 * is actually RGBA but the user created the texture as GL_RGB we 1344 * need to fill-in/override the alpha channel with 1.0. 1345 */ 1346 _mesa_texstore(ctx, dims, 1347 texImage->_BaseFormat, 1348 texImage->TexFormat, 1349 texDest, 1350 0, 0, 0, 1351 dstRowStride, 1352 texImage->ImageOffsets, 1353 width, height, 1, 1354 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1355 &unpack); 1356 } 1357 else { 1358 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1359 } 1360 1361 if (tempSrc) 1362 _mesa_free(tempSrc); 1363 } 1364 1365 st_texture_image_unmap(ctx->st, stImage); 1366 screen->tex_transfer_destroy(src_trans); 1367} 1368 1369 1370 1371/** 1372 * If the format of the src renderbuffer and the format of the dest 1373 * texture are compatible (in terms of blitting), return a TGSI writemask 1374 * to be used during the blit. 1375 * If the src/dest are incompatible, return 0. 1376 */ 1377static unsigned 1378compatible_src_dst_formats(GLcontext *ctx, 1379 const struct gl_renderbuffer *src, 1380 const struct gl_texture_image *dst) 1381{ 1382 /* Get logical base formats for the src and dest. 1383 * That is, use the user-requested formats and not the actual, device- 1384 * chosen formats. 1385 * For example, the user may have requested an A8 texture but the 1386 * driver may actually be using an RGBA texture format. When we 1387 * copy/blit to that texture, we only want to copy the Alpha channel 1388 * and not the RGB channels. 1389 * 1390 * Similarly, when the src FBO was created an RGB format may have been 1391 * requested but the driver actually chose an RGBA format. In that case, 1392 * we don't want to copy the undefined Alpha channel to the dest texture 1393 * (it should be 1.0). 1394 */ 1395 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat); 1396 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat); 1397 1398 /** 1399 * XXX when we have red-only and red/green renderbuffers we'll need 1400 * to add more cases here (or implement a general-purpose routine that 1401 * queries the existance of the R,G,B,A channels in the src and dest). 1402 */ 1403 if (srcFormat == dstFormat) { 1404 /* This is the same as matching_base_formats, which should 1405 * always pass, as it did previously. 1406 */ 1407 return TGSI_WRITEMASK_XYZW; 1408 } 1409 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) { 1410 /* Make sure that A in the dest is 1. The actual src format 1411 * may be RGBA and have undefined A values. 1412 */ 1413 return TGSI_WRITEMASK_XYZ; 1414 } 1415 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) { 1416 /* Make sure that A in the dest is 1. The actual dst format 1417 * may be RGBA and will need A=1 to provide proper alpha values 1418 * when sampled later. 1419 */ 1420 return TGSI_WRITEMASK_XYZ; 1421 } 1422 else { 1423 if (ST_DEBUG & DEBUG_FALLBACK) 1424 debug_printf("%s failed for src %s, dst %s\n", 1425 __FUNCTION__, 1426 _mesa_lookup_enum_by_nr(srcFormat), 1427 _mesa_lookup_enum_by_nr(dstFormat)); 1428 1429 /* Otherwise fail. 1430 */ 1431 return 0; 1432 } 1433} 1434 1435 1436 1437/** 1438 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1439 * Note that the region to copy has already been clipped so we know we 1440 * won't read from outside the source renderbuffer's bounds. 1441 * 1442 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1443 */ 1444static void 1445st_copy_texsubimage(GLcontext *ctx, 1446 GLenum target, GLint level, 1447 GLint destX, GLint destY, GLint destZ, 1448 GLint srcX, GLint srcY, 1449 GLsizei width, GLsizei height) 1450{ 1451 struct gl_texture_unit *texUnit = 1452 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1453 struct gl_texture_object *texObj = 1454 _mesa_select_tex_object(ctx, texUnit, target); 1455 struct gl_texture_image *texImage = 1456 _mesa_select_tex_image(ctx, texObj, target, level); 1457 struct st_texture_image *stImage = st_texture_image(texImage); 1458 const GLenum texBaseFormat = texImage->_BaseFormat; 1459 struct gl_framebuffer *fb = ctx->ReadBuffer; 1460 struct st_renderbuffer *strb; 1461 struct pipe_context *pipe = ctx->st->pipe; 1462 struct pipe_screen *screen = pipe->screen; 1463 enum pipe_format dest_format, src_format; 1464 GLboolean use_fallback = GL_TRUE; 1465 GLboolean matching_base_formats; 1466 GLuint format_writemask; 1467 struct pipe_surface *dest_surface = NULL; 1468 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1469 1470 /* any rendering in progress must flushed before we grab the fb image */ 1471 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1472 1473 /* make sure finalize_textures has been called? 1474 */ 1475 if (0) st_validate_state(ctx->st); 1476 1477 /* determine if copying depth or color data */ 1478 if (texBaseFormat == GL_DEPTH_COMPONENT || 1479 texBaseFormat == GL_DEPTH_STENCIL) { 1480 strb = st_renderbuffer(fb->_DepthBuffer); 1481 } 1482 else { 1483 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1484 strb = st_renderbuffer(fb->_ColorReadBuffer); 1485 } 1486 1487 if (!strb || !strb->surface || !stImage->pt) { 1488 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1489 return; 1490 } 1491 1492 if (srcX < 0) { 1493 width -= -srcX; 1494 destX += -srcX; 1495 srcX = 0; 1496 } 1497 1498 if (srcY < 0) { 1499 height -= -srcY; 1500 destY += -srcY; 1501 srcY = 0; 1502 } 1503 1504 if (destX < 0) { 1505 width -= -destX; 1506 srcX += -destX; 1507 destX = 0; 1508 } 1509 1510 if (destY < 0) { 1511 height -= -destY; 1512 srcY += -destY; 1513 destY = 0; 1514 } 1515 1516 if (width < 0 || height < 0) 1517 return; 1518 1519 1520 assert(strb); 1521 assert(strb->surface); 1522 assert(stImage->pt); 1523 1524 src_format = strb->surface->format; 1525 dest_format = stImage->pt->format; 1526 1527 /* 1528 * Determine if the src framebuffer and dest texture have the same 1529 * base format. We need this to detect a case such as the framebuffer 1530 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1531 * texture format stores RGBA we need to set A=1 (overriding the 1532 * framebuffer's alpha values). We can't do that with the blit or 1533 * textured-quad paths. 1534 */ 1535 matching_base_formats = 1536 (_mesa_get_format_base_format(strb->Base.Format) == 1537 _mesa_get_format_base_format(texImage->TexFormat)); 1538 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage); 1539 1540 if (ctx->_ImageTransferState == 0x0) { 1541 1542 if (pipe->surface_copy && 1543 matching_base_formats && 1544 src_format == dest_format && 1545 !do_flip) 1546 { 1547 /* use surface_copy() / blit */ 1548 1549 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1550 stImage->face, stImage->level, 1551 destZ, 1552 PIPE_BUFFER_USAGE_GPU_WRITE); 1553 1554 /* for surface_copy(), y=0=top, always */ 1555 pipe->surface_copy(pipe, 1556 /* dest */ 1557 dest_surface, 1558 destX, destY, 1559 /* src */ 1560 strb->surface, 1561 srcX, srcY, 1562 /* size */ 1563 width, height); 1564 use_fallback = GL_FALSE; 1565 } 1566 else if (format_writemask && 1567 texBaseFormat != GL_DEPTH_COMPONENT && 1568 texBaseFormat != GL_DEPTH_STENCIL && 1569 screen->is_format_supported(screen, src_format, 1570 PIPE_TEXTURE_2D, 1571 PIPE_TEXTURE_USAGE_SAMPLER, 1572 0) && 1573 screen->is_format_supported(screen, dest_format, 1574 PIPE_TEXTURE_2D, 1575 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1576 0)) { 1577 /* draw textured quad to do the copy */ 1578 GLint srcY0, srcY1; 1579 1580 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1581 stImage->face, stImage->level, 1582 destZ, 1583 PIPE_BUFFER_USAGE_GPU_WRITE); 1584 1585 if (do_flip) { 1586 srcY1 = strb->Base.Height - srcY - height; 1587 srcY0 = srcY1 + height; 1588 } 1589 else { 1590 srcY0 = srcY; 1591 srcY1 = srcY0 + height; 1592 } 1593 util_blit_pixels_writemask(ctx->st->blit, 1594 strb->surface, 1595 srcX, srcY0, 1596 srcX + width, srcY1, 1597 dest_surface, 1598 destX, destY, 1599 destX + width, destY + height, 1600 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1601 format_writemask); 1602 use_fallback = GL_FALSE; 1603 } 1604 1605 if (dest_surface) 1606 pipe_surface_reference(&dest_surface, NULL); 1607 } 1608 1609 if (use_fallback) { 1610 /* software fallback */ 1611 fallback_copy_texsubimage(ctx, target, level, 1612 strb, stImage, texBaseFormat, 1613 destX, destY, destZ, 1614 srcX, srcY, width, height); 1615 } 1616} 1617 1618 1619 1620static void 1621st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1622 GLenum internalFormat, 1623 GLint x, GLint y, GLsizei width, GLint border) 1624{ 1625 struct gl_texture_unit *texUnit = 1626 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1627 struct gl_texture_object *texObj = 1628 _mesa_select_tex_object(ctx, texUnit, target); 1629 struct gl_texture_image *texImage = 1630 _mesa_select_tex_image(ctx, texObj, target, level); 1631 1632 /* Setup or redefine the texture object, texture and texture 1633 * image. Don't populate yet. 1634 */ 1635 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1636 width, border, 1637 GL_RGBA, CHAN_TYPE, NULL, 1638 &ctx->DefaultPacking, texObj, texImage); 1639 1640 st_copy_texsubimage(ctx, target, level, 1641 0, 0, 0, /* destX,Y,Z */ 1642 x, y, width, 1); /* src X, Y, size */ 1643} 1644 1645 1646static void 1647st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1648 GLenum internalFormat, 1649 GLint x, GLint y, GLsizei width, GLsizei height, 1650 GLint border) 1651{ 1652 struct gl_texture_unit *texUnit = 1653 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1654 struct gl_texture_object *texObj = 1655 _mesa_select_tex_object(ctx, texUnit, target); 1656 struct gl_texture_image *texImage = 1657 _mesa_select_tex_image(ctx, texObj, target, level); 1658 1659 /* Setup or redefine the texture object, texture and texture 1660 * image. Don't populate yet. 1661 */ 1662 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1663 width, height, border, 1664 GL_RGBA, CHAN_TYPE, NULL, 1665 &ctx->DefaultPacking, texObj, texImage); 1666 1667 st_copy_texsubimage(ctx, target, level, 1668 0, 0, 0, /* destX,Y,Z */ 1669 x, y, width, height); /* src X, Y, size */ 1670} 1671 1672 1673static void 1674st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1675 GLint xoffset, GLint x, GLint y, GLsizei width) 1676{ 1677 const GLint yoffset = 0, zoffset = 0; 1678 const GLsizei height = 1; 1679 st_copy_texsubimage(ctx, target, level, 1680 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1681 x, y, width, height); /* src X, Y, size */ 1682} 1683 1684 1685static void 1686st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1687 GLint xoffset, GLint yoffset, 1688 GLint x, GLint y, GLsizei width, GLsizei height) 1689{ 1690 const GLint zoffset = 0; 1691 st_copy_texsubimage(ctx, target, level, 1692 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1693 x, y, width, height); /* src X, Y, size */ 1694} 1695 1696 1697static void 1698st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1699 GLint xoffset, GLint yoffset, GLint zoffset, 1700 GLint x, GLint y, GLsizei width, GLsizei height) 1701{ 1702 st_copy_texsubimage(ctx, target, level, 1703 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1704 x, y, width, height); /* src X, Y, size */ 1705} 1706 1707 1708static void 1709copy_image_data_to_texture(struct st_context *st, 1710 struct st_texture_object *stObj, 1711 GLuint dstLevel, 1712 struct st_texture_image *stImage) 1713{ 1714 if (stImage->pt) { 1715 /* Copy potentially with the blitter: 1716 */ 1717 st_texture_image_copy(st->pipe, 1718 stObj->pt, dstLevel, /* dest texture, level */ 1719 stImage->pt, /* src texture */ 1720 stImage->face 1721 ); 1722 1723 pipe_texture_reference(&stImage->pt, NULL); 1724 } 1725 else if (stImage->base.Data) { 1726 /* More straightforward upload. 1727 */ 1728 1729 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1730 PIPE_TRANSFER_WRITE); 1731 1732 1733 st_texture_image_data(st, 1734 stObj->pt, 1735 stImage->face, 1736 dstLevel, 1737 stImage->base.Data, 1738 stImage->base.RowStride * 1739 util_format_get_blocksize(stObj->pt->format), 1740 stImage->base.RowStride * 1741 stImage->base.Height * 1742 util_format_get_blocksize(stObj->pt->format)); 1743 _mesa_align_free(stImage->base.Data); 1744 stImage->base.Data = NULL; 1745 } 1746 1747 pipe_texture_reference(&stImage->pt, stObj->pt); 1748} 1749 1750 1751/** 1752 * Called during state validation. When this function is finished, 1753 * the texture object should be ready for rendering. 1754 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1755 */ 1756GLboolean 1757st_finalize_texture(GLcontext *ctx, 1758 struct pipe_context *pipe, 1759 struct gl_texture_object *tObj, 1760 GLboolean *needFlush) 1761{ 1762 struct st_texture_object *stObj = st_texture_object(tObj); 1763 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1764 GLuint blockSize, face; 1765 struct st_texture_image *firstImage; 1766 1767 *needFlush = GL_FALSE; 1768 1769 if (stObj->base._Complete) { 1770 /* The texture is complete and we know exactly how many mipmap levels 1771 * are present/needed. This is conditional because we may be called 1772 * from the st_generate_mipmap() function when the texture object is 1773 * incomplete. In that case, we'll have set stObj->lastLevel before 1774 * we get here. 1775 */ 1776 if (stObj->base.MinFilter == GL_LINEAR || 1777 stObj->base.MinFilter == GL_NEAREST) 1778 stObj->lastLevel = stObj->base.BaseLevel; 1779 else 1780 stObj->lastLevel = stObj->base._MaxLevel - stObj->base.BaseLevel; 1781 } 1782 1783 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1784 1785 /* If both firstImage and stObj point to a texture which can contain 1786 * all active images, favour firstImage. Note that because of the 1787 * completeness requirement, we know that the image dimensions 1788 * will match. 1789 */ 1790 if (firstImage->pt && 1791 firstImage->pt != stObj->pt && 1792 firstImage->pt->last_level >= stObj->lastLevel) { 1793 pipe_texture_reference(&stObj->pt, firstImage->pt); 1794 } 1795 1796 /* bytes per pixel block (blocks are usually 1x1) */ 1797 blockSize = _mesa_get_format_bytes(firstImage->base.TexFormat); 1798 1799 /* If we already have a gallium texture, check that it matches the texture 1800 * object's format, target, size, num_levels, etc. 1801 */ 1802 if (stObj->pt) { 1803 const enum pipe_format fmt = 1804 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1805 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1806 stObj->pt->format != fmt || 1807 stObj->pt->last_level < stObj->lastLevel || 1808 stObj->pt->width0 != firstImage->base.Width2 || 1809 stObj->pt->height0 != firstImage->base.Height2 || 1810 stObj->pt->depth0 != firstImage->base.Depth2) 1811 { 1812 pipe_texture_reference(&stObj->pt, NULL); 1813 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1814 } 1815 } 1816 1817 /* May need to create a new gallium texture: 1818 */ 1819 if (!stObj->pt) { 1820 const enum pipe_format fmt = 1821 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1822 GLuint usage = default_usage(fmt); 1823 1824 stObj->pt = st_texture_create(ctx->st, 1825 gl_target_to_pipe(stObj->base.Target), 1826 fmt, 1827 stObj->lastLevel, 1828 firstImage->base.Width2, 1829 firstImage->base.Height2, 1830 firstImage->base.Depth2, 1831 usage); 1832 1833 if (!stObj->pt) { 1834 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1835 return GL_FALSE; 1836 } 1837 } 1838 1839 /* Pull in any images not in the object's texture: 1840 */ 1841 for (face = 0; face < nr_faces; face++) { 1842 GLuint level; 1843 for (level = 0; level <= stObj->lastLevel; level++) { 1844 struct st_texture_image *stImage = 1845 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1846 1847 /* Need to import images in main memory or held in other textures. 1848 */ 1849 if (stImage && stObj->pt != stImage->pt) { 1850 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1851 *needFlush = GL_TRUE; 1852 } 1853 } 1854 } 1855 1856 return GL_TRUE; 1857} 1858 1859 1860/** 1861 * Returns pointer to a default/dummy texture. 1862 * This is typically used when the current shader has tex/sample instructions 1863 * but the user has not provided a (any) texture(s). 1864 */ 1865struct gl_texture_object * 1866st_get_default_texture(struct st_context *st) 1867{ 1868 if (!st->default_texture) { 1869 static const GLenum target = GL_TEXTURE_2D; 1870 GLubyte pixels[16][16][4]; 1871 struct gl_texture_object *texObj; 1872 struct gl_texture_image *texImg; 1873 GLuint i, j; 1874 1875 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1876 * when attempting to sample incomplete textures. 1877 */ 1878 for (i = 0; i < 16; i++) { 1879 for (j = 0; j < 16; j++) { 1880 pixels[i][j][0] = 0; 1881 pixels[i][j][1] = 0; 1882 pixels[i][j][2] = 0; 1883 pixels[i][j][3] = 255; 1884 } 1885 } 1886 1887 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1888 1889 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1890 1891 _mesa_init_teximage_fields(st->ctx, target, texImg, 1892 16, 16, 1, 0, /* w, h, d, border */ 1893 GL_RGBA); 1894 1895 st_TexImage(st->ctx, 2, target, 1896 0, GL_RGBA, /* level, intformat */ 1897 16, 16, 1, 0, /* w, h, d, border */ 1898 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1899 &st->ctx->DefaultPacking, 1900 texObj, texImg, 1901 0, 0); 1902 1903 texObj->MinFilter = GL_NEAREST; 1904 texObj->MagFilter = GL_NEAREST; 1905 texObj->_Complete = GL_TRUE; 1906 1907 st->default_texture = texObj; 1908 } 1909 return st->default_texture; 1910} 1911 1912 1913void 1914st_init_texture_functions(struct dd_function_table *functions) 1915{ 1916 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1917 functions->TexImage1D = st_TexImage1D; 1918 functions->TexImage2D = st_TexImage2D; 1919 functions->TexImage3D = st_TexImage3D; 1920 functions->TexSubImage1D = st_TexSubImage1D; 1921 functions->TexSubImage2D = st_TexSubImage2D; 1922 functions->TexSubImage3D = st_TexSubImage3D; 1923 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1924 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1925 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1926 functions->CopyTexImage1D = st_CopyTexImage1D; 1927 functions->CopyTexImage2D = st_CopyTexImage2D; 1928 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1929 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1930 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1931 functions->GenerateMipmap = st_generate_mipmap; 1932 1933 functions->GetTexImage = st_GetTexImage; 1934 1935 /* compressed texture functions */ 1936 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1937 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1938 1939 functions->NewTextureObject = st_NewTextureObject; 1940 functions->NewTextureImage = st_NewTextureImage; 1941 functions->DeleteTexture = st_DeleteTextureObject; 1942 functions->FreeTexImageData = st_FreeTextureImageData; 1943 functions->UpdateTexturePalette = 0; 1944 1945 functions->TextureMemCpy = do_memcpy; 1946 1947 /* XXX Temporary until we can query pipe's texture sizes */ 1948 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1949} 1950