st_cb_texture.c revision 253e7fee5dc7f0872987b214a6fa162db5e2aa19
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_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 "pipe/p_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_surface.h" 65#include "util/u_math.h" 66 67 68#define DBG if (0) printf 69 70 71static enum pipe_texture_target 72gl_target_to_pipe(GLenum target) 73{ 74 switch (target) { 75 case GL_TEXTURE_1D: 76 return PIPE_TEXTURE_1D; 77 78 case GL_TEXTURE_2D: 79 case GL_TEXTURE_RECTANGLE_NV: 80 return PIPE_TEXTURE_2D; 81 82 case GL_TEXTURE_3D: 83 return PIPE_TEXTURE_3D; 84 85 case GL_TEXTURE_CUBE_MAP_ARB: 86 return PIPE_TEXTURE_CUBE; 87 88 default: 89 assert(0); 90 return 0; 91 } 92} 93 94 95/** 96 * Return nominal bytes per texel for a compressed format, 0 for non-compressed 97 * format. 98 */ 99static GLuint 100compressed_num_bytes(gl_format format) 101{ 102 switch (format) { 103#if FEATURE_texture_fxt1 104 case MESA_FORMAT_RGB_FXT1: 105 case MESA_FORMAT_RGBA_FXT1: 106#endif 107#if FEATURE_texture_s3tc 108 case MESA_FORMAT_RGB_DXT1: 109 case MESA_FORMAT_RGBA_DXT1: 110 return 2; 111 case MESA_FORMAT_RGBA_DXT3: 112 case MESA_FORMAT_RGBA_DXT5: 113 return 4; 114#endif 115 default: 116 return 0; 117 } 118} 119 120 121static GLboolean 122is_compressed_mesa_format(gl_format format) 123{ 124 switch (format) { 125 case MESA_FORMAT_RGB_DXT1: 126 case MESA_FORMAT_RGBA_DXT1: 127 case MESA_FORMAT_RGBA_DXT3: 128 case MESA_FORMAT_RGBA_DXT5: 129 case MESA_FORMAT_SRGB_DXT1: 130 case MESA_FORMAT_SRGBA_DXT1: 131 case MESA_FORMAT_SRGBA_DXT3: 132 case MESA_FORMAT_SRGBA_DXT5: 133 return GL_TRUE; 134 default: 135 return GL_FALSE; 136 } 137} 138 139 140/** called via ctx->Driver.NewTextureImage() */ 141static struct gl_texture_image * 142st_NewTextureImage(GLcontext * ctx) 143{ 144 DBG("%s\n", __FUNCTION__); 145 (void) ctx; 146 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 147} 148 149 150/** called via ctx->Driver.NewTextureObject() */ 151static struct gl_texture_object * 152st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 153{ 154 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 155 156 DBG("%s\n", __FUNCTION__); 157 _mesa_initialize_texture_object(&obj->base, name, target); 158 159 return &obj->base; 160} 161 162/** called via ctx->Driver.DeleteTextureImage() */ 163static void 164st_DeleteTextureObject(GLcontext *ctx, 165 struct gl_texture_object *texObj) 166{ 167 struct st_texture_object *stObj = st_texture_object(texObj); 168 if (stObj->pt) 169 pipe_texture_reference(&stObj->pt, NULL); 170 171 _mesa_delete_texture_object(ctx, texObj); 172} 173 174 175/** called via ctx->Driver.FreeTexImageData() */ 176static void 177st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 178{ 179 struct st_texture_image *stImage = st_texture_image(texImage); 180 181 DBG("%s\n", __FUNCTION__); 182 183 if (stImage->pt) { 184 pipe_texture_reference(&stImage->pt, NULL); 185 } 186 187 if (texImage->Data) { 188 _mesa_align_free(texImage->Data); 189 texImage->Data = NULL; 190 } 191} 192 193 194/** 195 * From linux kernel i386 header files, copes with odd sizes better 196 * than COPY_DWORDS would: 197 * XXX Put this in src/mesa/main/imports.h ??? 198 */ 199#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) 200static INLINE void * 201__memcpy(void *to, const void *from, size_t n) 202{ 203 int d0, d1, d2; 204 __asm__ __volatile__("rep ; movsl\n\t" 205 "testb $2,%b4\n\t" 206 "je 1f\n\t" 207 "movsw\n" 208 "1:\ttestb $1,%b4\n\t" 209 "je 2f\n\t" 210 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 211 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 212 :"memory"); 213 return (to); 214} 215#else 216#define __memcpy(a,b,c) memcpy(a,b,c) 217#endif 218 219 220/** 221 * The system memcpy (at least on ubuntu 5.10) has problems copying 222 * to agp (writecombined) memory from a source which isn't 64-byte 223 * aligned - there is a 4x performance falloff. 224 * 225 * The x86 __memcpy is immune to this but is slightly slower 226 * (10%-ish) than the system memcpy. 227 * 228 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 229 * isn't much faster than x86_memcpy for agp copies. 230 * 231 * TODO: switch dynamically. 232 */ 233static void * 234do_memcpy(void *dest, const void *src, size_t n) 235{ 236 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { 237 return __memcpy(dest, src, n); 238 } 239 else 240 return memcpy(dest, src, n); 241} 242 243 244/** 245 * Return default texture usage bitmask for the given texture format. 246 */ 247static GLuint 248default_usage(enum pipe_format fmt) 249{ 250 GLuint usage = PIPE_TEXTURE_USAGE_SAMPLER; 251 if (pf_is_depth_stencil(fmt)) 252 usage |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL; 253 else 254 usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET; 255 return usage; 256} 257 258 259/** 260 * Allocate a pipe_texture object for the given st_texture_object using 261 * the given st_texture_image to guess the mipmap size/levels. 262 * 263 * [comments...] 264 * Otherwise, store it in memory if (Border != 0) or (any dimension == 265 * 1). 266 * 267 * Otherwise, if max_level >= level >= min_level, create texture with 268 * space for images from min_level down to max_level. 269 * 270 * Otherwise, create texture with space for images from (level 0)..(1x1). 271 * Consider pruning this texture at a validation if the saving is worth it. 272 */ 273static void 274guess_and_alloc_texture(struct st_context *st, 275 struct st_texture_object *stObj, 276 const struct st_texture_image *stImage) 277{ 278 GLuint firstLevel; 279 GLuint lastLevel; 280 GLuint width = stImage->base.Width2; /* size w/out border */ 281 GLuint height = stImage->base.Height2; 282 GLuint depth = stImage->base.Depth2; 283 GLuint i, usage; 284 enum pipe_format fmt; 285 286 DBG("%s\n", __FUNCTION__); 287 288 assert(!stObj->pt); 289 290 if (stObj->pt && 291 (GLint) stImage->level > stObj->base.BaseLevel && 292 (stImage->base.Width == 1 || 293 (stObj->base.Target != GL_TEXTURE_1D && 294 stImage->base.Height == 1) || 295 (stObj->base.Target == GL_TEXTURE_3D && 296 stImage->base.Depth == 1))) 297 return; 298 299 /* If this image disrespects BaseLevel, allocate from level zero. 300 * Usually BaseLevel == 0, so it's unlikely to happen. 301 */ 302 if ((GLint) stImage->level < stObj->base.BaseLevel) 303 firstLevel = 0; 304 else 305 firstLevel = stObj->base.BaseLevel; 306 307 308 /* Figure out image dimensions at start level. 309 */ 310 for (i = stImage->level; i > firstLevel; i--) { 311 if (width != 1) 312 width <<= 1; 313 if (height != 1) 314 height <<= 1; 315 if (depth != 1) 316 depth <<= 1; 317 } 318 319 if (width == 0 || height == 0 || depth == 0) { 320 /* no texture needed */ 321 return; 322 } 323 324 /* Guess a reasonable value for lastLevel. This is probably going 325 * to be wrong fairly often and might mean that we have to look at 326 * resizable buffers, or require that buffers implement lazy 327 * pagetable arrangements. 328 */ 329 if ((stObj->base.MinFilter == GL_NEAREST || 330 stObj->base.MinFilter == GL_LINEAR || 331 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 332 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 333 stImage->level == firstLevel) { 334 lastLevel = firstLevel; 335 } 336 else { 337 GLuint l2width = util_logbase2(width); 338 GLuint l2height = util_logbase2(height); 339 GLuint l2depth = util_logbase2(depth); 340 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 341 } 342 343 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat); 344 345 usage = default_usage(fmt); 346 347 stObj->pt = st_texture_create(st, 348 gl_target_to_pipe(stObj->base.Target), 349 fmt, 350 lastLevel, 351 width, 352 height, 353 depth, 354 usage); 355 356 DBG("%s - success\n", __FUNCTION__); 357} 358 359 360/** 361 * Adjust pixel unpack params and image dimensions to strip off the 362 * texture border. 363 * Gallium doesn't support texture borders. They've seldem been used 364 * and seldom been implemented correctly anyway. 365 * \param unpackNew returns the new pixel unpack parameters 366 */ 367static void 368strip_texture_border(GLint border, 369 GLint *width, GLint *height, GLint *depth, 370 const struct gl_pixelstore_attrib *unpack, 371 struct gl_pixelstore_attrib *unpackNew) 372{ 373 assert(border > 0); /* sanity check */ 374 375 *unpackNew = *unpack; 376 377 if (unpackNew->RowLength == 0) 378 unpackNew->RowLength = *width; 379 380 if (depth && unpackNew->ImageHeight == 0) 381 unpackNew->ImageHeight = *height; 382 383 unpackNew->SkipPixels += border; 384 if (height) 385 unpackNew->SkipRows += border; 386 if (depth) 387 unpackNew->SkipImages += border; 388 389 assert(*width >= 3); 390 *width = *width - 2 * border; 391 if (height && *height >= 3) 392 *height = *height - 2 * border; 393 if (depth && *depth >= 3) 394 *depth = *depth - 2 * border; 395} 396 397 398/** 399 * Try to do texture compression via rendering. If the Gallium driver 400 * can render into a compressed surface this will allow us to do texture 401 * compression. 402 * \return GL_TRUE for success, GL_FALSE for failure 403 */ 404static GLboolean 405compress_with_blit(GLcontext * ctx, 406 GLenum target, GLint level, 407 GLint xoffset, GLint yoffset, GLint zoffset, 408 GLint width, GLint height, GLint depth, 409 GLenum format, GLenum type, const void *pixels, 410 const struct gl_pixelstore_attrib *unpack, 411 struct gl_texture_image *texImage) 412{ 413 const GLuint dstImageOffsets[1] = {0}; 414 struct st_texture_image *stImage = st_texture_image(texImage); 415 struct pipe_screen *screen = ctx->st->pipe->screen; 416 gl_format mesa_format; 417 struct pipe_texture templ; 418 struct pipe_texture *src_tex; 419 struct pipe_surface *dst_surface; 420 struct pipe_transfer *tex_xfer; 421 void *map; 422 423 if (!stImage->pt) { 424 /* XXX: Can this happen? Should we assert? */ 425 return GL_FALSE; 426 } 427 428 /* get destination surface (in the compressed texture) */ 429 dst_surface = screen->get_tex_surface(screen, stImage->pt, 430 stImage->face, stImage->level, 0, 431 PIPE_BUFFER_USAGE_GPU_WRITE); 432 if (!dst_surface) { 433 /* can't render into this format (or other problem) */ 434 return GL_FALSE; 435 } 436 437 /* Choose format for the temporary RGBA texture image. 438 */ 439 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); 440 assert(mesa_format); 441 if (!mesa_format) 442 return GL_FALSE; 443 444 /* Create the temporary source texture 445 */ 446 memset(&templ, 0, sizeof(templ)); 447 templ.target = PIPE_TEXTURE_2D; 448 templ.format = st_mesa_format_to_pipe_format(mesa_format); 449 pf_get_block(templ.format, &templ.block); 450 templ.width[0] = width; 451 templ.height[0] = height; 452 templ.depth[0] = 1; 453 templ.last_level = 0; 454 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 455 src_tex = screen->texture_create(screen, &templ); 456 457 if (!src_tex) 458 return GL_FALSE; 459 460 /* Put user's tex data into the temporary texture 461 */ 462 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex, 463 0, 0, 0, /* face, level are zero */ 464 PIPE_TRANSFER_WRITE, 465 0, 0, width, height); /* x, y, w, h */ 466 map = screen->transfer_map(screen, tex_xfer); 467 468 _mesa_texstore(ctx, 2, GL_RGBA, mesa_format, 469 map, /* dest ptr */ 470 0, 0, 0, /* dest x/y/z offset */ 471 tex_xfer->stride, /* dest row stride (bytes) */ 472 dstImageOffsets, /* image offsets (for 3D only) */ 473 width, height, 1, /* size */ 474 format, type, /* source format/type */ 475 pixels, /* source data */ 476 unpack); /* source data packing */ 477 478 screen->transfer_unmap(screen, tex_xfer); 479 screen->tex_transfer_destroy(tex_xfer); 480 481 /* copy / compress image */ 482 util_blit_pixels_tex(ctx->st->blit, 483 src_tex, /* pipe_texture (src) */ 484 0, 0, /* src x0, y0 */ 485 width, height, /* src x1, y1 */ 486 dst_surface, /* pipe_surface (dst) */ 487 xoffset, yoffset, /* dst x0, y0 */ 488 xoffset + width, /* dst x1 */ 489 yoffset + height, /* dst y1 */ 490 0.0, /* z */ 491 PIPE_TEX_MIPFILTER_NEAREST); 492 493 pipe_surface_reference(&dst_surface, NULL); 494 pipe_texture_reference(&src_tex, NULL); 495 496 return GL_TRUE; 497} 498 499 500/** 501 * Do glTexImage1/2/3D(). 502 */ 503static void 504st_TexImage(GLcontext * ctx, 505 GLint dims, 506 GLenum target, GLint level, 507 GLint internalFormat, 508 GLint width, GLint height, GLint depth, 509 GLint border, 510 GLenum format, GLenum type, const void *pixels, 511 const struct gl_pixelstore_attrib *unpack, 512 struct gl_texture_object *texObj, 513 struct gl_texture_image *texImage, 514 GLsizei imageSize, GLboolean compressed_src) 515{ 516 struct pipe_screen *screen = ctx->st->pipe->screen; 517 struct st_texture_object *stObj = st_texture_object(texObj); 518 struct st_texture_image *stImage = st_texture_image(texImage); 519 GLint postConvWidth, postConvHeight; 520 GLint texelBytes, sizeInBytes; 521 GLuint dstRowStride = 0; 522 struct gl_pixelstore_attrib unpackNB; 523 enum pipe_transfer_usage transfer_usage = 0; 524 525 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 526 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 527 528 /* switch to "normal" */ 529 if (stObj->surface_based) { 530 _mesa_clear_texture_object(ctx, texObj); 531 stObj->surface_based = GL_FALSE; 532 } 533 534 /* gallium does not support texture borders, strip it off */ 535 if (border) { 536 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 537 unpack = &unpackNB; 538 texImage->Width = width; 539 texImage->Height = height; 540 texImage->Depth = depth; 541 texImage->Border = 0; 542 border = 0; 543 } 544 545 postConvWidth = width; 546 postConvHeight = height; 547 548 stImage->face = _mesa_tex_target_to_face(target); 549 stImage->level = level; 550 551#if FEATURE_convolve 552 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 553 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 554 &postConvHeight); 555 } 556#endif 557 558 /* choose the texture format */ 559 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 560 format, type); 561 562 _mesa_set_fetch_functions(texImage, dims); 563 564 if (_mesa_is_format_compressed(texImage->TexFormat)) { 565 /* must be a compressed format */ 566 texelBytes = 0; 567 } 568 else { 569 texelBytes = _mesa_get_format_bytes(texImage->TexFormat); 570 571 /* Minimum pitch of 32 bytes */ 572 if (postConvWidth * texelBytes < 32) { 573 postConvWidth = 32 / texelBytes; 574 texImage->RowStride = postConvWidth; 575 } 576 577 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 578 /*assert(texImage->RowStride == postConvWidth);*/ 579 } 580 581 /* Release the reference to a potentially orphaned buffer. 582 * Release any old malloced memory. 583 */ 584 if (stImage->pt) { 585 pipe_texture_reference(&stImage->pt, NULL); 586 assert(!texImage->Data); 587 } 588 else if (texImage->Data) { 589 _mesa_align_free(texImage->Data); 590 } 591 592 if (width == 0 || height == 0 || depth == 0) { 593 /* stop after freeing old image */ 594 return; 595 } 596 597 /* If this is the only mipmap level in the texture, could call 598 * bmBufferData with NULL data to free the old block and avoid 599 * waiting on any outstanding fences. 600 */ 601 if (stObj->pt) { 602 if (stObj->teximage_realloc || 603 level > (GLint) stObj->pt->last_level || 604 (stObj->pt->last_level == level && 605 stObj->pt->target != PIPE_TEXTURE_CUBE && 606 !st_texture_match_image(stObj->pt, &stImage->base, 607 stImage->face, stImage->level))) { 608 DBG("release it\n"); 609 pipe_texture_reference(&stObj->pt, NULL); 610 assert(!stObj->pt); 611 stObj->teximage_realloc = FALSE; 612 } 613 } 614 615 if (!stObj->pt) { 616 guess_and_alloc_texture(ctx->st, stObj, stImage); 617 if (!stObj->pt) { 618 /* Probably out of memory. 619 * Try flushing any pending rendering, then retry. 620 */ 621 st_finish(ctx->st); 622 guess_and_alloc_texture(ctx->st, stObj, stImage); 623 if (!stObj->pt) { 624 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 625 return; 626 } 627 } 628 } 629 630 assert(!stImage->pt); 631 632 if (stObj->pt && 633 st_texture_match_image(stObj->pt, &stImage->base, 634 stImage->face, stImage->level)) { 635 636 pipe_texture_reference(&stImage->pt, stObj->pt); 637 assert(stImage->pt); 638 } 639 640 if (!stImage->pt) 641 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 642 643 /* st_CopyTexImage calls this function with pixels == NULL, with 644 * the expectation that the texture will be set up but nothing 645 * more will be done. This is where those calls return: 646 */ 647 if (compressed_src) { 648 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 649 unpack, 650 "glCompressedTexImage"); 651 } 652 else { 653 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 654 format, type, 655 pixels, unpack, "glTexImage"); 656 } 657 658 /* Note: we can't check for pixels==NULL until after we've allocated 659 * memory for the texture. 660 */ 661 662 /* See if we can do texture compression with a blit/render. 663 */ 664 if (!compressed_src && 665 !ctx->Mesa_DXTn && 666 is_compressed_mesa_format(texImage->TexFormat) && 667 screen->is_format_supported(screen, 668 stImage->pt->format, 669 stImage->pt->target, 670 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 671 if (!pixels) 672 goto done; 673 674 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 675 format, type, pixels, unpack, texImage)) { 676 goto done; 677 } 678 } 679 680 if (stImage->pt) { 681 if (format == GL_DEPTH_COMPONENT && 682 pf_is_depth_and_stencil(stImage->pt->format)) 683 transfer_usage = PIPE_TRANSFER_READ_WRITE; 684 else 685 transfer_usage = PIPE_TRANSFER_WRITE; 686 687 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 688 transfer_usage, 0, 0, 689 stImage->base.Width, 690 stImage->base.Height); 691 if(stImage->transfer) 692 dstRowStride = stImage->transfer->stride; 693 } 694 else { 695 /* Allocate regular memory and store the image there temporarily. */ 696 if (_mesa_is_format_compressed(texImage->TexFormat)) { 697 sizeInBytes = _mesa_format_image_size(texImage->TexFormat, 698 texImage->Width, 699 texImage->Height, 700 texImage->Depth); 701 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width); 702 assert(dims != 3); 703 } 704 else { 705 dstRowStride = postConvWidth * texelBytes; 706 sizeInBytes = depth * dstRowStride * postConvHeight; 707 } 708 709 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 710 } 711 712 if (!texImage->Data) { 713 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 714 return; 715 } 716 717 if (!pixels) 718 goto done; 719 720 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 721 width, height, depth, width * texelBytes, dstRowStride); 722 723 /* Copy data. Would like to know when it's ok for us to eg. use 724 * the blitter to copy. Or, use the hardware to do the format 725 * conversion and copy: 726 */ 727 if (compressed_src) { 728 memcpy(texImage->Data, pixels, imageSize); 729 } 730 else { 731 const GLuint srcImageStride = 732 _mesa_image_image_stride(unpack, width, height, format, type); 733 GLint i; 734 const GLubyte *src = (const GLubyte *) pixels; 735 736 for (i = 0; i < depth; i++) { 737 if (!_mesa_texstore(ctx, dims, 738 texImage->_BaseFormat, 739 texImage->TexFormat, 740 texImage->Data, 741 0, 0, 0, /* dstX/Y/Zoffset */ 742 dstRowStride, 743 texImage->ImageOffsets, 744 width, height, 1, 745 format, type, src, unpack)) { 746 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 747 } 748 749 if (stImage->pt && i + 1 < depth) { 750 /* unmap this slice */ 751 st_texture_image_unmap(ctx->st, stImage); 752 /* map next slice of 3D texture */ 753 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 754 transfer_usage, 0, 0, 755 stImage->base.Width, 756 stImage->base.Height); 757 src += srcImageStride; 758 } 759 } 760 } 761 762done: 763 _mesa_unmap_teximage_pbo(ctx, unpack); 764 765 if (stImage->pt && texImage->Data) { 766 st_texture_image_unmap(ctx->st, stImage); 767 texImage->Data = NULL; 768 } 769} 770 771 772static void 773st_TexImage3D(GLcontext * ctx, 774 GLenum target, GLint level, 775 GLint internalFormat, 776 GLint width, GLint height, GLint depth, 777 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, 3, target, level, internalFormat, width, height, depth, 784 border, format, type, pixels, unpack, texObj, texImage, 785 0, GL_FALSE); 786} 787 788 789static void 790st_TexImage2D(GLcontext * ctx, 791 GLenum target, GLint level, 792 GLint internalFormat, 793 GLint width, GLint height, GLint border, 794 GLenum format, GLenum type, const void *pixels, 795 const struct gl_pixelstore_attrib *unpack, 796 struct gl_texture_object *texObj, 797 struct gl_texture_image *texImage) 798{ 799 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 800 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 801} 802 803 804static void 805st_TexImage1D(GLcontext * ctx, 806 GLenum target, GLint level, 807 GLint internalFormat, 808 GLint width, GLint border, 809 GLenum format, GLenum type, const void *pixels, 810 const struct gl_pixelstore_attrib *unpack, 811 struct gl_texture_object *texObj, 812 struct gl_texture_image *texImage) 813{ 814 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 815 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 816} 817 818 819static void 820st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 821 GLint internalFormat, 822 GLint width, GLint height, GLint border, 823 GLsizei imageSize, const GLvoid *data, 824 struct gl_texture_object *texObj, 825 struct gl_texture_image *texImage) 826{ 827 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 828 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 829} 830 831 832 833/** 834 * glGetTexImage() helper: decompress a compressed texture by rendering 835 * a textured quad. Store the results in the user's buffer. 836 */ 837static void 838decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 839 GLenum format, GLenum type, GLvoid *pixels, 840 struct gl_texture_object *texObj, 841 struct gl_texture_image *texImage) 842{ 843 struct pipe_screen *screen = ctx->st->pipe->screen; 844 struct st_texture_image *stImage = st_texture_image(texImage); 845 const GLuint width = texImage->Width; 846 const GLuint height = texImage->Height; 847 struct pipe_surface *dst_surface; 848 struct pipe_texture *dst_texture; 849 struct pipe_transfer *tex_xfer; 850 851 /* create temp / dest surface */ 852 if (!util_create_rgba_surface(screen, width, height, 853 &dst_texture, &dst_surface)) { 854 _mesa_problem(ctx, "util_create_rgba_surface() failed " 855 "in decompress_with_blit()"); 856 return; 857 } 858 859 /* blit/render/decompress */ 860 util_blit_pixels_tex(ctx->st->blit, 861 stImage->pt, /* pipe_texture (src) */ 862 0, 0, /* src x0, y0 */ 863 width, height, /* src x1, y1 */ 864 dst_surface, /* pipe_surface (dst) */ 865 0, 0, /* dst x0, y0 */ 866 width, height, /* dst x1, y1 */ 867 0.0, /* z */ 868 PIPE_TEX_MIPFILTER_NEAREST); 869 870 /* map the dst_surface so we can read from it */ 871 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 872 dst_texture, 0, 0, 0, 873 PIPE_TRANSFER_READ, 874 0, 0, width, height); 875 876 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 877 878 /* copy/pack data into user buffer */ 879 if (st_equal_formats(stImage->pt->format, format, type)) { 880 /* memcpy */ 881 const uint bytesPerRow = width * pf_get_size(stImage->pt->format); 882 ubyte *map = screen->transfer_map(screen, tex_xfer); 883 GLuint row; 884 for (row = 0; row < height; row++) { 885 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 886 height, format, type, row, 0); 887 memcpy(dest, map, bytesPerRow); 888 map += tex_xfer->stride; 889 } 890 screen->transfer_unmap(screen, tex_xfer); 891 } 892 else { 893 /* format translation via floats */ 894 GLuint row; 895 for (row = 0; row < height; row++) { 896 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 897 GLfloat rgba[4 * MAX_WIDTH]; 898 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 899 height, format, type, row, 0); 900 901 /* get float[4] rgba row from surface */ 902 pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba); 903 904 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 905 type, dest, &ctx->Pack, transferOps); 906 } 907 } 908 909 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 910 911 /* destroy the temp / dest surface */ 912 util_destroy_rgba_surface(dst_texture, dst_surface); 913} 914 915 916 917/** 918 * Need to map texture image into memory before copying image data, 919 * then unmap it. 920 */ 921static void 922st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 923 GLenum format, GLenum type, GLvoid * pixels, 924 struct gl_texture_object *texObj, 925 struct gl_texture_image *texImage, GLboolean compressed_dst) 926{ 927 struct st_texture_image *stImage = st_texture_image(texImage); 928 const GLuint dstImageStride = 929 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 930 format, type); 931 GLuint depth, i; 932 GLubyte *dest; 933 934 if (stImage->pt && 935 pf_is_compressed(stImage->pt->format) && 936 !compressed_dst) { 937 /* Need to decompress the texture. 938 * We'll do this by rendering a textured quad. 939 * Note that we only expect RGBA formats (no Z/depth formats). 940 */ 941 decompress_with_blit(ctx, target, level, format, type, pixels, 942 texObj, texImage); 943 return; 944 } 945 946 /* Map */ 947 if (stImage->pt) { 948 /* Image is stored in hardware format in a buffer managed by the 949 * kernel. Need to explicitly map and unmap it. 950 */ 951 unsigned face = _mesa_tex_target_to_face(target); 952 953 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 954 PIPE_TRANSFER_READ); 955 956 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 957 PIPE_TRANSFER_READ, 0, 0, 958 stImage->base.Width, 959 stImage->base.Height); 960 texImage->RowStride = stImage->transfer->stride / stImage->pt->block.size; 961 } 962 else { 963 /* Otherwise, the image should actually be stored in 964 * texImage->Data. This is pretty confusing for 965 * everybody, I'd much prefer to separate the two functions of 966 * texImage->Data - storage for texture images in main memory 967 * and access (ie mappings) of images. In other words, we'd 968 * create a new texImage->Map field and leave Data simply for 969 * storage. 970 */ 971 assert(texImage->Data); 972 } 973 974 depth = texImage->Depth; 975 texImage->Depth = 1; 976 977 dest = (GLubyte *) pixels; 978 979 for (i = 0; i < depth; i++) { 980 if (compressed_dst) { 981 _mesa_get_compressed_teximage(ctx, target, level, dest, 982 texObj, texImage); 983 } 984 else { 985 _mesa_get_teximage(ctx, target, level, format, type, dest, 986 texObj, texImage); 987 } 988 989 if (stImage->pt && i + 1 < depth) { 990 /* unmap this slice */ 991 st_texture_image_unmap(ctx->st, stImage); 992 /* map next slice of 3D texture */ 993 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 994 PIPE_TRANSFER_READ, 0, 0, 995 stImage->base.Width, 996 stImage->base.Height); 997 dest += dstImageStride; 998 } 999 } 1000 1001 texImage->Depth = depth; 1002 1003 /* Unmap */ 1004 if (stImage->pt) { 1005 st_texture_image_unmap(ctx->st, stImage); 1006 texImage->Data = NULL; 1007 } 1008} 1009 1010 1011static void 1012st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 1013 GLenum format, GLenum type, GLvoid * pixels, 1014 struct gl_texture_object *texObj, 1015 struct gl_texture_image *texImage) 1016{ 1017 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 1018 GL_FALSE); 1019} 1020 1021 1022static void 1023st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 1024 GLvoid *pixels, 1025 struct gl_texture_object *texObj, 1026 struct gl_texture_image *texImage) 1027{ 1028 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1029 GL_TRUE); 1030} 1031 1032 1033 1034static void 1035st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1036 GLint xoffset, GLint yoffset, GLint zoffset, 1037 GLint width, GLint height, GLint depth, 1038 GLenum format, GLenum type, const void *pixels, 1039 const struct gl_pixelstore_attrib *packing, 1040 struct gl_texture_object *texObj, 1041 struct gl_texture_image *texImage) 1042{ 1043 struct pipe_screen *screen = ctx->st->pipe->screen; 1044 struct st_texture_image *stImage = st_texture_image(texImage); 1045 GLuint dstRowStride; 1046 const GLuint srcImageStride = 1047 _mesa_image_image_stride(packing, width, height, format, type); 1048 GLint i; 1049 const GLubyte *src; 1050 /* init to silence warning only: */ 1051 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1052 1053 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1054 _mesa_lookup_enum_by_nr(target), 1055 level, xoffset, yoffset, width, height); 1056 1057 pixels = 1058 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1059 type, pixels, packing, "glTexSubImage2D"); 1060 if (!pixels) 1061 return; 1062 1063 /* See if we can do texture compression with a blit/render. 1064 */ 1065 if (!ctx->Mesa_DXTn && 1066 is_compressed_mesa_format(texImage->TexFormat) && 1067 screen->is_format_supported(screen, 1068 stImage->pt->format, 1069 stImage->pt->target, 1070 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1071 if (compress_with_blit(ctx, target, level, 1072 xoffset, yoffset, zoffset, 1073 width, height, depth, 1074 format, type, pixels, packing, texImage)) { 1075 goto done; 1076 } 1077 } 1078 1079 /* Map buffer if necessary. Need to lock to prevent other contexts 1080 * from uploading the buffer under us. 1081 */ 1082 if (stImage->pt) { 1083 unsigned face = _mesa_tex_target_to_face(target); 1084 1085 if (format == GL_DEPTH_COMPONENT && 1086 pf_is_depth_and_stencil(stImage->pt->format)) 1087 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1088 else 1089 transfer_usage = PIPE_TRANSFER_WRITE; 1090 1091 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1092 transfer_usage); 1093 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1094 transfer_usage, 1095 xoffset, yoffset, 1096 width, height); 1097 } 1098 1099 if (!texImage->Data) { 1100 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1101 goto done; 1102 } 1103 1104 src = (const GLubyte *) pixels; 1105 dstRowStride = stImage->transfer->stride; 1106 1107 for (i = 0; i < depth; i++) { 1108 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat, 1109 texImage->TexFormat, 1110 texImage->Data, 1111 0, 0, 0, 1112 dstRowStride, 1113 texImage->ImageOffsets, 1114 width, height, 1, 1115 format, type, src, packing)) { 1116 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1117 } 1118 1119 if (stImage->pt && i + 1 < depth) { 1120 /* unmap this slice */ 1121 st_texture_image_unmap(ctx->st, stImage); 1122 /* map next slice of 3D texture */ 1123 texImage->Data = st_texture_image_map(ctx->st, stImage, 1124 zoffset + i + 1, 1125 transfer_usage, 1126 xoffset, yoffset, 1127 width, height); 1128 src += srcImageStride; 1129 } 1130 } 1131 1132done: 1133 _mesa_unmap_teximage_pbo(ctx, packing); 1134 1135 if (stImage->pt) { 1136 st_texture_image_unmap(ctx->st, stImage); 1137 texImage->Data = NULL; 1138 } 1139} 1140 1141 1142 1143static void 1144st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1145 GLint xoffset, GLint yoffset, GLint zoffset, 1146 GLsizei width, GLsizei height, GLsizei depth, 1147 GLenum format, GLenum type, const GLvoid *pixels, 1148 const struct gl_pixelstore_attrib *packing, 1149 struct gl_texture_object *texObj, 1150 struct gl_texture_image *texImage) 1151{ 1152 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1153 width, height, depth, format, type, 1154 pixels, packing, texObj, texImage); 1155} 1156 1157 1158static void 1159st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1160 GLint xoffset, GLint yoffset, 1161 GLsizei width, GLsizei height, 1162 GLenum format, GLenum type, const GLvoid * pixels, 1163 const struct gl_pixelstore_attrib *packing, 1164 struct gl_texture_object *texObj, 1165 struct gl_texture_image *texImage) 1166{ 1167 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1168 width, height, 1, format, type, 1169 pixels, packing, texObj, texImage); 1170} 1171 1172 1173static void 1174st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1175 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1176 const GLvoid * pixels, 1177 const struct gl_pixelstore_attrib *packing, 1178 struct gl_texture_object *texObj, 1179 struct gl_texture_image *texImage) 1180{ 1181 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1182 format, type, pixels, packing, texObj, texImage); 1183} 1184 1185 1186static void 1187st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1188 GLint xoffset, GLsizei width, 1189 GLenum format, 1190 GLsizei imageSize, const GLvoid *data, 1191 struct gl_texture_object *texObj, 1192 struct gl_texture_image *texImage) 1193{ 1194 assert(0); 1195} 1196 1197 1198static void 1199st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1200 GLint xoffset, GLint yoffset, 1201 GLsizei width, GLint height, 1202 GLenum format, 1203 GLsizei imageSize, const GLvoid *data, 1204 struct gl_texture_object *texObj, 1205 struct gl_texture_image *texImage) 1206{ 1207 struct st_texture_image *stImage = st_texture_image(texImage); 1208 struct pipe_format_block block; 1209 int srcBlockStride; 1210 int dstBlockStride; 1211 int y; 1212 1213 if (stImage->pt) { 1214 unsigned face = _mesa_tex_target_to_face(target); 1215 1216 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1217 PIPE_TRANSFER_WRITE); 1218 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1219 PIPE_TRANSFER_WRITE, 1220 xoffset, yoffset, 1221 width, height); 1222 1223 block = stImage->pt->block; 1224 srcBlockStride = pf_get_stride(&block, width); 1225 dstBlockStride = stImage->transfer->stride; 1226 } else { 1227 assert(stImage->pt); 1228 /* TODO find good values for block and strides */ 1229 /* TODO also adjust texImage->data for yoffset/xoffset */ 1230 return; 1231 } 1232 1233 if (!texImage->Data) { 1234 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1235 return; 1236 } 1237 1238 assert(xoffset % block.width == 0); 1239 assert(yoffset % block.height == 0); 1240 assert(width % block.width == 0); 1241 assert(height % block.height == 0); 1242 1243 for (y = 0; y < height; y += block.height) { 1244 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1245 const char *src = (const char*)data + srcBlockStride * pf_get_nblocksy(&block, y); 1246 char *dst = (char*)texImage->Data + dstBlockStride * pf_get_nblocksy(&block, y); 1247 memcpy(dst, src, pf_get_stride(&block, width)); 1248 } 1249 1250 if (stImage->pt) { 1251 st_texture_image_unmap(ctx->st, stImage); 1252 texImage->Data = NULL; 1253 } 1254} 1255 1256 1257static void 1258st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1259 GLint xoffset, GLint yoffset, GLint zoffset, 1260 GLsizei width, GLint height, GLint depth, 1261 GLenum format, 1262 GLsizei imageSize, const GLvoid *data, 1263 struct gl_texture_object *texObj, 1264 struct gl_texture_image *texImage) 1265{ 1266 assert(0); 1267} 1268 1269 1270 1271/** 1272 * Do a CopyTexSubImage operation using a read transfer from the source, 1273 * a write transfer to the destination and get_tile()/put_tile() to access 1274 * the pixels/texels. 1275 * 1276 * Note: srcY=0=TOP of renderbuffer 1277 */ 1278static void 1279fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1280 struct st_renderbuffer *strb, 1281 struct st_texture_image *stImage, 1282 GLenum baseFormat, 1283 GLint destX, GLint destY, GLint destZ, 1284 GLint srcX, GLint srcY, 1285 GLsizei width, GLsizei height) 1286{ 1287 struct pipe_context *pipe = ctx->st->pipe; 1288 struct pipe_screen *screen = pipe->screen; 1289 struct pipe_transfer *src_trans; 1290 GLvoid *texDest; 1291 enum pipe_transfer_usage transfer_usage; 1292 1293 assert(width <= MAX_WIDTH); 1294 1295 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1296 srcY = strb->Base.Height - srcY - height; 1297 } 1298 1299 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1300 strb->texture, 1301 0, 0, 0, 1302 PIPE_TRANSFER_READ, 1303 srcX, srcY, 1304 width, height); 1305 1306 if (baseFormat == GL_DEPTH_COMPONENT && 1307 pf_is_depth_and_stencil(stImage->pt->format)) 1308 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1309 else 1310 transfer_usage = PIPE_TRANSFER_WRITE; 1311 1312 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1313 transfer_usage); 1314 1315 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1316 destX, destY, width, height); 1317 1318 if (baseFormat == GL_DEPTH_COMPONENT || 1319 baseFormat == GL_DEPTH24_STENCIL8) { 1320 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1321 ctx->Pixel.DepthBias != 0.0F); 1322 GLint row, yStep; 1323 1324 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1325 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1326 srcY = height - 1; 1327 yStep = -1; 1328 } 1329 else { 1330 srcY = 0; 1331 yStep = 1; 1332 } 1333 1334 /* To avoid a large temp memory allocation, do copy row by row */ 1335 for (row = 0; row < height; row++, srcY += yStep) { 1336 uint data[MAX_WIDTH]; 1337 pipe_get_tile_z(src_trans, 0, srcY, width, 1, data); 1338 if (scaleOrBias) { 1339 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1340 } 1341 pipe_put_tile_z(stImage->transfer, 0, row, width, 1, data); 1342 } 1343 } 1344 else { 1345 /* RGBA format */ 1346 GLfloat *tempSrc = 1347 (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); 1348 1349 if (tempSrc && texDest) { 1350 const GLint dims = 2; 1351 const GLint dstRowStride = stImage->transfer->stride; 1352 struct gl_texture_image *texImage = &stImage->base; 1353 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1354 1355 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1356 unpack.Invert = GL_TRUE; 1357 } 1358 1359 /* get float/RGBA image from framebuffer */ 1360 /* XXX this usually involves a lot of int/float conversion. 1361 * try to avoid that someday. 1362 */ 1363 pipe_get_tile_rgba(src_trans, 0, 0, width, height, tempSrc); 1364 1365 /* Store into texture memory. 1366 * Note that this does some special things such as pixel transfer 1367 * ops and format conversion. In particular, if the dest tex format 1368 * is actually RGBA but the user created the texture as GL_RGB we 1369 * need to fill-in/override the alpha channel with 1.0. 1370 */ 1371 _mesa_texstore(ctx, dims, 1372 texImage->_BaseFormat, 1373 texImage->TexFormat, 1374 texDest, 1375 0, 0, 0, 1376 dstRowStride, 1377 texImage->ImageOffsets, 1378 width, height, 1, 1379 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1380 &unpack); 1381 } 1382 else { 1383 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1384 } 1385 1386 if (tempSrc) 1387 _mesa_free(tempSrc); 1388 } 1389 1390 st_texture_image_unmap(ctx->st, stImage); 1391 screen->tex_transfer_destroy(src_trans); 1392} 1393 1394 1395static unsigned 1396compatible_src_dst_formats(const struct gl_renderbuffer *src, 1397 const struct gl_texture_image *dst) 1398{ 1399 const GLenum srcFormat = _mesa_get_format_base_format(src->Format); 1400 const GLenum dstLogicalFormat = _mesa_get_format_base_format(dst->TexFormat); 1401 1402 if (srcFormat == dstLogicalFormat) { 1403 /* This is the same as matching_base_formats, which should 1404 * always pass, as it did previously. 1405 */ 1406 return TGSI_WRITEMASK_XYZW; 1407 } 1408 else if (srcFormat == GL_RGBA && 1409 dstLogicalFormat == GL_RGB) { 1410 /* Add a single special case to cope with RGBA->RGB transfers, 1411 * setting A to 1.0 to cope with situations where the RGB 1412 * destination is actually stored as RGBA. 1413 */ 1414 return TGSI_WRITEMASK_XYZ; /* A ==> 1.0 */ 1415 } 1416 else { 1417 /* Otherwise fail. 1418 */ 1419 return 0; 1420 } 1421} 1422 1423 1424 1425/** 1426 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1427 * Note that the region to copy has already been clipped so we know we 1428 * won't read from outside the source renderbuffer's bounds. 1429 * 1430 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1431 */ 1432static void 1433st_copy_texsubimage(GLcontext *ctx, 1434 GLenum target, GLint level, 1435 GLint destX, GLint destY, GLint destZ, 1436 GLint srcX, GLint srcY, 1437 GLsizei width, GLsizei height) 1438{ 1439 struct gl_texture_unit *texUnit = 1440 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1441 struct gl_texture_object *texObj = 1442 _mesa_select_tex_object(ctx, texUnit, target); 1443 struct gl_texture_image *texImage = 1444 _mesa_select_tex_image(ctx, texObj, target, level); 1445 struct st_texture_image *stImage = st_texture_image(texImage); 1446 const GLenum texBaseFormat = texImage->InternalFormat; 1447 struct gl_framebuffer *fb = ctx->ReadBuffer; 1448 struct st_renderbuffer *strb; 1449 struct pipe_context *pipe = ctx->st->pipe; 1450 struct pipe_screen *screen = pipe->screen; 1451 enum pipe_format dest_format, src_format; 1452 GLboolean use_fallback = GL_TRUE; 1453 GLboolean matching_base_formats; 1454 GLuint format_writemask; 1455 struct pipe_surface *dest_surface = NULL; 1456 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1457 1458 /* any rendering in progress must flushed before we grab the fb image */ 1459 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1460 1461 /* make sure finalize_textures has been called? 1462 */ 1463 if (0) st_validate_state(ctx->st); 1464 1465 /* determine if copying depth or color data */ 1466 if (texBaseFormat == GL_DEPTH_COMPONENT || 1467 texBaseFormat == GL_DEPTH24_STENCIL8) { 1468 strb = st_renderbuffer(fb->_DepthBuffer); 1469 } 1470 else if (texBaseFormat == GL_DEPTH_STENCIL_EXT) { 1471 strb = st_renderbuffer(fb->_StencilBuffer); 1472 } 1473 else { 1474 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1475 strb = st_renderbuffer(fb->_ColorReadBuffer); 1476 } 1477 1478 if (!strb || !strb->surface || !stImage->pt) { 1479 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1480 return; 1481 } 1482 1483 if (srcX < 0) { 1484 width -= -srcX; 1485 destX += -srcX; 1486 srcX = 0; 1487 } 1488 1489 if (srcY < 0) { 1490 height -= -srcY; 1491 destY += -srcY; 1492 srcY = 0; 1493 } 1494 1495 if (destX < 0) { 1496 width -= -destX; 1497 srcX += -destX; 1498 destX = 0; 1499 } 1500 1501 if (destY < 0) { 1502 height -= -destY; 1503 srcY += -destY; 1504 destY = 0; 1505 } 1506 1507 if (width < 0 || height < 0) 1508 return; 1509 1510 1511 assert(strb); 1512 assert(strb->surface); 1513 assert(stImage->pt); 1514 1515 src_format = strb->surface->format; 1516 dest_format = stImage->pt->format; 1517 1518 /* 1519 * Determine if the src framebuffer and dest texture have the same 1520 * base format. We need this to detect a case such as the framebuffer 1521 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1522 * texture format stores RGBA we need to set A=1 (overriding the 1523 * framebuffer's alpha values). We can't do that with the blit or 1524 * textured-quad paths. 1525 */ 1526 matching_base_formats = 1527 (_mesa_get_format_base_format(strb->Base.Format) == 1528 _mesa_get_format_base_format(texImage->TexFormat)); 1529 format_writemask = compatible_src_dst_formats(&strb->Base, texImage); 1530 1531 if (ctx->_ImageTransferState == 0x0) { 1532 1533 if (matching_base_formats && 1534 src_format == dest_format && 1535 !do_flip) 1536 { 1537 /* use surface_copy() / blit */ 1538 1539 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1540 stImage->face, stImage->level, 1541 destZ, 1542 PIPE_BUFFER_USAGE_GPU_WRITE); 1543 1544 /* for surface_copy(), y=0=top, always */ 1545 pipe->surface_copy(pipe, 1546 /* dest */ 1547 dest_surface, 1548 destX, destY, 1549 /* src */ 1550 strb->surface, 1551 srcX, srcY, 1552 /* size */ 1553 width, height); 1554 use_fallback = GL_FALSE; 1555 } 1556 else if (format_writemask && 1557 screen->is_format_supported(screen, src_format, 1558 PIPE_TEXTURE_2D, 1559 PIPE_TEXTURE_USAGE_SAMPLER, 1560 0) && 1561 screen->is_format_supported(screen, dest_format, 1562 PIPE_TEXTURE_2D, 1563 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1564 0)) { 1565 /* draw textured quad to do the copy */ 1566 GLint srcY0, srcY1; 1567 1568 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1569 stImage->face, stImage->level, 1570 destZ, 1571 PIPE_BUFFER_USAGE_GPU_WRITE); 1572 1573 if (do_flip) { 1574 srcY1 = strb->Base.Height - srcY - height; 1575 srcY0 = srcY1 + height; 1576 } 1577 else { 1578 srcY0 = srcY; 1579 srcY1 = srcY0 + height; 1580 } 1581 util_blit_pixels_writemask(ctx->st->blit, 1582 strb->surface, 1583 srcX, srcY0, 1584 srcX + width, srcY1, 1585 dest_surface, 1586 destX, destY, 1587 destX + width, destY + height, 1588 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1589 format_writemask); 1590 use_fallback = GL_FALSE; 1591 } 1592 1593 if (dest_surface) 1594 pipe_surface_reference(&dest_surface, NULL); 1595 } 1596 1597 if (use_fallback) { 1598 /* software fallback */ 1599 fallback_copy_texsubimage(ctx, target, level, 1600 strb, stImage, texBaseFormat, 1601 destX, destY, destZ, 1602 srcX, srcY, width, height); 1603 } 1604} 1605 1606 1607 1608static void 1609st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1610 GLenum internalFormat, 1611 GLint x, GLint y, GLsizei width, GLint border) 1612{ 1613 struct gl_texture_unit *texUnit = 1614 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1615 struct gl_texture_object *texObj = 1616 _mesa_select_tex_object(ctx, texUnit, target); 1617 struct gl_texture_image *texImage = 1618 _mesa_select_tex_image(ctx, texObj, target, level); 1619 1620 /* Setup or redefine the texture object, texture and texture 1621 * image. Don't populate yet. 1622 */ 1623 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1624 width, border, 1625 GL_RGBA, CHAN_TYPE, NULL, 1626 &ctx->DefaultPacking, texObj, texImage); 1627 1628 st_copy_texsubimage(ctx, target, level, 1629 0, 0, 0, /* destX,Y,Z */ 1630 x, y, width, 1); /* src X, Y, size */ 1631} 1632 1633 1634static void 1635st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1636 GLenum internalFormat, 1637 GLint x, GLint y, GLsizei width, GLsizei height, 1638 GLint border) 1639{ 1640 struct gl_texture_unit *texUnit = 1641 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1642 struct gl_texture_object *texObj = 1643 _mesa_select_tex_object(ctx, texUnit, target); 1644 struct gl_texture_image *texImage = 1645 _mesa_select_tex_image(ctx, texObj, target, level); 1646 1647 /* Setup or redefine the texture object, texture and texture 1648 * image. Don't populate yet. 1649 */ 1650 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1651 width, height, border, 1652 GL_RGBA, CHAN_TYPE, NULL, 1653 &ctx->DefaultPacking, texObj, texImage); 1654 1655 st_copy_texsubimage(ctx, target, level, 1656 0, 0, 0, /* destX,Y,Z */ 1657 x, y, width, height); /* src X, Y, size */ 1658} 1659 1660 1661static void 1662st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1663 GLint xoffset, GLint x, GLint y, GLsizei width) 1664{ 1665 const GLint yoffset = 0, zoffset = 0; 1666 const GLsizei height = 1; 1667 st_copy_texsubimage(ctx, target, level, 1668 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1669 x, y, width, height); /* src X, Y, size */ 1670} 1671 1672 1673static void 1674st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1675 GLint xoffset, GLint yoffset, 1676 GLint x, GLint y, GLsizei width, GLsizei height) 1677{ 1678 const GLint zoffset = 0; 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_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1687 GLint xoffset, GLint yoffset, GLint zoffset, 1688 GLint x, GLint y, GLsizei width, GLsizei height) 1689{ 1690 st_copy_texsubimage(ctx, target, level, 1691 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1692 x, y, width, height); /* src X, Y, size */ 1693} 1694 1695 1696/** 1697 * Compute which mipmap levels that really need to be sent to the hardware. 1698 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1699 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1700 */ 1701static void 1702calculate_first_last_level(struct st_texture_object *stObj) 1703{ 1704 struct gl_texture_object *tObj = &stObj->base; 1705 1706 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1707 * and having firstLevel and lastLevel as signed prevents the need for 1708 * extra sign checks. 1709 */ 1710 GLint firstLevel; 1711 GLint lastLevel; 1712 1713 /* Yes, this looks overly complicated, but it's all needed. 1714 */ 1715 switch (tObj->Target) { 1716 case GL_TEXTURE_1D: 1717 case GL_TEXTURE_2D: 1718 case GL_TEXTURE_3D: 1719 case GL_TEXTURE_CUBE_MAP: 1720 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1721 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1722 */ 1723 firstLevel = lastLevel = tObj->BaseLevel; 1724 } 1725 else { 1726 firstLevel = 0; 1727 lastLevel = MIN2(tObj->MaxLevel, 1728 (int) tObj->Image[0][tObj->BaseLevel]->WidthLog2); 1729 } 1730 break; 1731 case GL_TEXTURE_RECTANGLE_NV: 1732 case GL_TEXTURE_4D_SGIS: 1733 firstLevel = lastLevel = 0; 1734 break; 1735 default: 1736 return; 1737 } 1738 1739 stObj->lastLevel = lastLevel; 1740} 1741 1742 1743static void 1744copy_image_data_to_texture(struct st_context *st, 1745 struct st_texture_object *stObj, 1746 GLuint dstLevel, 1747 struct st_texture_image *stImage) 1748{ 1749 if (stImage->pt) { 1750 /* Copy potentially with the blitter: 1751 */ 1752 st_texture_image_copy(st->pipe, 1753 stObj->pt, dstLevel, /* dest texture, level */ 1754 stImage->pt, /* src texture */ 1755 stImage->face 1756 ); 1757 1758 pipe_texture_reference(&stImage->pt, NULL); 1759 } 1760 else if (stImage->base.Data) { 1761 assert(stImage->base.Data != NULL); 1762 1763 /* More straightforward upload. 1764 */ 1765 1766 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1767 PIPE_TRANSFER_WRITE); 1768 1769 1770 st_texture_image_data(st, 1771 stObj->pt, 1772 stImage->face, 1773 dstLevel, 1774 stImage->base.Data, 1775 stImage->base.RowStride * 1776 stObj->pt->block.size, 1777 stImage->base.RowStride * 1778 stImage->base.Height * 1779 stObj->pt->block.size); 1780 _mesa_align_free(stImage->base.Data); 1781 stImage->base.Data = NULL; 1782 } 1783 1784 pipe_texture_reference(&stImage->pt, stObj->pt); 1785} 1786 1787 1788/** 1789 * Called during state validation. When this function is finished, 1790 * the texture object should be ready for rendering. 1791 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1792 */ 1793GLboolean 1794st_finalize_texture(GLcontext *ctx, 1795 struct pipe_context *pipe, 1796 struct gl_texture_object *tObj, 1797 GLboolean *needFlush) 1798{ 1799 struct st_texture_object *stObj = st_texture_object(tObj); 1800 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1801 GLuint cpp, face; 1802 struct st_texture_image *firstImage; 1803 1804 *needFlush = GL_FALSE; 1805 1806 /* We know/require this is true by now: 1807 */ 1808 assert(stObj->base._Complete); 1809 1810 /* What levels must the texture include at a minimum? 1811 */ 1812 calculate_first_last_level(stObj); 1813 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1814 1815 /* If both firstImage and stObj point to a texture which can contain 1816 * all active images, favour firstImage. Note that because of the 1817 * completeness requirement, we know that the image dimensions 1818 * will match. 1819 */ 1820 if (firstImage->pt && 1821 firstImage->pt != stObj->pt && 1822 firstImage->pt->last_level >= stObj->lastLevel) { 1823 pipe_texture_reference(&stObj->pt, firstImage->pt); 1824 } 1825 1826 /* FIXME: determine format block instead of cpp */ 1827 if (_mesa_is_format_compressed(firstImage->base.TexFormat)) { 1828 cpp = compressed_num_bytes(firstImage->base.TexFormat); 1829 } 1830 else { 1831 cpp = _mesa_get_format_bytes(firstImage->base.TexFormat); 1832 } 1833 1834 /* If we already have a gallium texture, check that it matches the texture 1835 * object's format, target, size, num_levels, etc. 1836 */ 1837 if (stObj->pt) { 1838 const enum pipe_format fmt = 1839 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1840 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1841 stObj->pt->format != fmt || 1842 stObj->pt->last_level < stObj->lastLevel || 1843 stObj->pt->width[0] != firstImage->base.Width2 || 1844 stObj->pt->height[0] != firstImage->base.Height2 || 1845 stObj->pt->depth[0] != firstImage->base.Depth2 || 1846 /* Nominal bytes per pixel: */ 1847 stObj->pt->block.size / stObj->pt->block.width != cpp) 1848 { 1849 pipe_texture_reference(&stObj->pt, NULL); 1850 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1851 } 1852 } 1853 1854 /* May need to create a new gallium texture: 1855 */ 1856 if (!stObj->pt) { 1857 const enum pipe_format fmt = 1858 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1859 GLuint usage = default_usage(fmt); 1860 1861 stObj->pt = st_texture_create(ctx->st, 1862 gl_target_to_pipe(stObj->base.Target), 1863 fmt, 1864 stObj->lastLevel, 1865 firstImage->base.Width2, 1866 firstImage->base.Height2, 1867 firstImage->base.Depth2, 1868 usage); 1869 1870 if (!stObj->pt) { 1871 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1872 return GL_FALSE; 1873 } 1874 } 1875 1876 /* Pull in any images not in the object's texture: 1877 */ 1878 for (face = 0; face < nr_faces; face++) { 1879 GLuint level; 1880 for (level = 0; level <= stObj->lastLevel; level++) { 1881 struct st_texture_image *stImage = 1882 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1883 1884 /* Need to import images in main memory or held in other textures. 1885 */ 1886 if (stImage && stObj->pt != stImage->pt) { 1887 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1888 *needFlush = GL_TRUE; 1889 } 1890 } 1891 } 1892 1893 return GL_TRUE; 1894} 1895 1896 1897/** 1898 * Returns pointer to a default/dummy texture. 1899 * This is typically used when the current shader has tex/sample instructions 1900 * but the user has not provided a (any) texture(s). 1901 */ 1902struct gl_texture_object * 1903st_get_default_texture(struct st_context *st) 1904{ 1905 if (!st->default_texture) { 1906 static const GLenum target = GL_TEXTURE_2D; 1907 GLubyte pixels[16][16][4]; 1908 struct gl_texture_object *texObj; 1909 struct gl_texture_image *texImg; 1910 GLuint i, j; 1911 1912 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1913 * when attempting to sample incomplete textures. 1914 */ 1915 for (i = 0; i < 16; i++) { 1916 for (j = 0; j < 16; j++) { 1917 pixels[i][j][0] = 0; 1918 pixels[i][j][1] = 0; 1919 pixels[i][j][2] = 0; 1920 pixels[i][j][3] = 255; 1921 } 1922 } 1923 1924 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1925 1926 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1927 1928 _mesa_init_teximage_fields(st->ctx, target, texImg, 1929 16, 16, 1, 0, /* w, h, d, border */ 1930 GL_RGBA); 1931 1932 st_TexImage(st->ctx, 2, target, 1933 0, GL_RGBA, /* level, intformat */ 1934 16, 16, 1, 0, /* w, h, d, border */ 1935 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1936 &st->ctx->DefaultPacking, 1937 texObj, texImg, 1938 0, 0); 1939 1940 texObj->MinFilter = GL_NEAREST; 1941 texObj->MagFilter = GL_NEAREST; 1942 texObj->_Complete = GL_TRUE; 1943 1944 st->default_texture = texObj; 1945 } 1946 return st->default_texture; 1947} 1948 1949 1950void 1951st_init_texture_functions(struct dd_function_table *functions) 1952{ 1953 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1954 functions->TexImage1D = st_TexImage1D; 1955 functions->TexImage2D = st_TexImage2D; 1956 functions->TexImage3D = st_TexImage3D; 1957 functions->TexSubImage1D = st_TexSubImage1D; 1958 functions->TexSubImage2D = st_TexSubImage2D; 1959 functions->TexSubImage3D = st_TexSubImage3D; 1960 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1961 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1962 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1963 functions->CopyTexImage1D = st_CopyTexImage1D; 1964 functions->CopyTexImage2D = st_CopyTexImage2D; 1965 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1966 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1967 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1968 functions->GenerateMipmap = st_generate_mipmap; 1969 1970 functions->GetTexImage = st_GetTexImage; 1971 1972 /* compressed texture functions */ 1973 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1974 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1975 1976 functions->NewTextureObject = st_NewTextureObject; 1977 functions->NewTextureImage = st_NewTextureImage; 1978 functions->DeleteTexture = st_DeleteTextureObject; 1979 functions->FreeTexImageData = st_FreeTextureImageData; 1980 functions->UpdateTexturePalette = 0; 1981 1982 functions->TextureMemCpy = do_memcpy; 1983 1984 /* XXX Temporary until we can query pipe's texture sizes */ 1985 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1986} 1987