st_cb_texture.c revision b43c182f19c6291c88420fa12714f952c2b461fb
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_context *pipe = ctx->st->pipe; 375 struct pipe_screen *screen = pipe->screen; 376 gl_format mesa_format; 377 struct pipe_texture templ; 378 struct pipe_texture *src_tex; 379 struct pipe_surface *dst_surface; 380 struct pipe_transfer *tex_xfer; 381 void *map; 382 383 if (!stImage->pt) { 384 /* XXX: Can this happen? Should we assert? */ 385 return GL_FALSE; 386 } 387 388 /* get destination surface (in the compressed texture) */ 389 dst_surface = screen->get_tex_surface(screen, stImage->pt, 390 stImage->face, stImage->level, 0, 391 PIPE_BUFFER_USAGE_GPU_WRITE); 392 if (!dst_surface) { 393 /* can't render into this format (or other problem) */ 394 return GL_FALSE; 395 } 396 397 /* Choose format for the temporary RGBA texture image. 398 */ 399 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); 400 assert(mesa_format); 401 if (!mesa_format) 402 return GL_FALSE; 403 404 /* Create the temporary source texture 405 */ 406 memset(&templ, 0, sizeof(templ)); 407 templ.target = PIPE_TEXTURE_2D; 408 templ.format = st_mesa_format_to_pipe_format(mesa_format); 409 templ.width0 = width; 410 templ.height0 = height; 411 templ.depth0 = 1; 412 templ.last_level = 0; 413 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 414 src_tex = screen->texture_create(screen, &templ); 415 416 if (!src_tex) 417 return GL_FALSE; 418 419 /* Put user's tex data into the temporary texture 420 */ 421 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex, 422 0, 0, 0, /* face, level are zero */ 423 PIPE_TRANSFER_WRITE, 424 0, 0, width, height); /* x, y, w, h */ 425 map = pipe->transfer_map(pipe, tex_xfer); 426 427 _mesa_texstore(ctx, 2, GL_RGBA, mesa_format, 428 map, /* dest ptr */ 429 0, 0, 0, /* dest x/y/z offset */ 430 tex_xfer->stride, /* dest row stride (bytes) */ 431 dstImageOffsets, /* image offsets (for 3D only) */ 432 width, height, 1, /* size */ 433 format, type, /* source format/type */ 434 pixels, /* source data */ 435 unpack); /* source data packing */ 436 437 pipe->transfer_unmap(pipe, tex_xfer); 438 pipe->tex_transfer_destroy(tex_xfer); 439 440 /* copy / compress image */ 441 util_blit_pixels_tex(ctx->st->blit, 442 src_tex, /* pipe_texture (src) */ 443 0, 0, /* src x0, y0 */ 444 width, height, /* src x1, y1 */ 445 dst_surface, /* pipe_surface (dst) */ 446 xoffset, yoffset, /* dst x0, y0 */ 447 xoffset + width, /* dst x1 */ 448 yoffset + height, /* dst y1 */ 449 0.0, /* z */ 450 PIPE_TEX_MIPFILTER_NEAREST); 451 452 pipe_surface_reference(&dst_surface, NULL); 453 pipe_texture_reference(&src_tex, NULL); 454 455 return GL_TRUE; 456} 457 458 459/** 460 * Do glTexImage1/2/3D(). 461 */ 462static void 463st_TexImage(GLcontext * ctx, 464 GLint dims, 465 GLenum target, GLint level, 466 GLint internalFormat, 467 GLint width, GLint height, GLint depth, 468 GLint border, 469 GLenum format, GLenum type, const void *pixels, 470 const struct gl_pixelstore_attrib *unpack, 471 struct gl_texture_object *texObj, 472 struct gl_texture_image *texImage, 473 GLsizei imageSize, GLboolean compressed_src) 474{ 475 struct pipe_screen *screen = ctx->st->pipe->screen; 476 struct st_texture_object *stObj = st_texture_object(texObj); 477 struct st_texture_image *stImage = st_texture_image(texImage); 478 GLint postConvWidth, postConvHeight; 479 GLint texelBytes, sizeInBytes; 480 GLuint dstRowStride = 0; 481 struct gl_pixelstore_attrib unpackNB; 482 enum pipe_transfer_usage transfer_usage = 0; 483 484 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 485 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 486 487 /* switch to "normal" */ 488 if (stObj->surface_based) { 489 _mesa_clear_texture_object(ctx, texObj); 490 stObj->surface_based = GL_FALSE; 491 } 492 493 /* gallium does not support texture borders, strip it off */ 494 if (border) { 495 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 496 unpack = &unpackNB; 497 texImage->Width = width; 498 texImage->Height = height; 499 texImage->Depth = depth; 500 texImage->Border = 0; 501 border = 0; 502 } 503 504 postConvWidth = width; 505 postConvHeight = height; 506 507 stImage->face = _mesa_tex_target_to_face(target); 508 stImage->level = level; 509 510#if FEATURE_convolve 511 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 512 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 513 &postConvHeight); 514 } 515#endif 516 517 _mesa_set_fetch_functions(texImage, dims); 518 519 if (_mesa_is_format_compressed(texImage->TexFormat)) { 520 /* must be a compressed format */ 521 texelBytes = 0; 522 } 523 else { 524 texelBytes = _mesa_get_format_bytes(texImage->TexFormat); 525 526 /* Minimum pitch of 32 bytes */ 527 if (postConvWidth * texelBytes < 32) { 528 postConvWidth = 32 / texelBytes; 529 texImage->RowStride = postConvWidth; 530 } 531 532 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 533 /*assert(texImage->RowStride == postConvWidth);*/ 534 } 535 536 /* Release the reference to a potentially orphaned buffer. 537 * Release any old malloced memory. 538 */ 539 if (stImage->pt) { 540 pipe_texture_reference(&stImage->pt, NULL); 541 assert(!texImage->Data); 542 } 543 else if (texImage->Data) { 544 _mesa_align_free(texImage->Data); 545 } 546 547 /* 548 * See if the new image is somehow incompatible with the existing 549 * mipmap. If so, free the old mipmap. 550 */ 551 if (stObj->pt) { 552 if (stObj->teximage_realloc || 553 level > (GLint) stObj->pt->last_level || 554 !st_texture_match_image(stObj->pt, &stImage->base, 555 stImage->face, stImage->level)) { 556 DBG("release it\n"); 557 pipe_texture_reference(&stObj->pt, NULL); 558 assert(!stObj->pt); 559 stObj->teximage_realloc = FALSE; 560 } 561 } 562 563 if (width == 0 || height == 0 || depth == 0) { 564 /* stop after freeing old image */ 565 return; 566 } 567 568 if (!stObj->pt) { 569 guess_and_alloc_texture(ctx->st, stObj, stImage); 570 if (!stObj->pt) { 571 /* Probably out of memory. 572 * Try flushing any pending rendering, then retry. 573 */ 574 st_finish(ctx->st); 575 guess_and_alloc_texture(ctx->st, stObj, stImage); 576 if (!stObj->pt) { 577 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 578 return; 579 } 580 } 581 } 582 583 assert(!stImage->pt); 584 585 if (stObj->pt && 586 st_texture_match_image(stObj->pt, &stImage->base, 587 stImage->face, stImage->level)) { 588 589 pipe_texture_reference(&stImage->pt, stObj->pt); 590 assert(stImage->pt); 591 } 592 593 if (!stImage->pt) 594 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 595 596 /* st_CopyTexImage calls this function with pixels == NULL, with 597 * the expectation that the texture will be set up but nothing 598 * more will be done. This is where those calls return: 599 */ 600 if (compressed_src) { 601 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 602 unpack, 603 "glCompressedTexImage"); 604 } 605 else { 606 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 607 format, type, 608 pixels, unpack, "glTexImage"); 609 } 610 611 /* Note: we can't check for pixels==NULL until after we've allocated 612 * memory for the texture. 613 */ 614 615 /* See if we can do texture compression with a blit/render. 616 */ 617 if (!compressed_src && 618 !ctx->Mesa_DXTn && 619 _mesa_is_format_compressed(texImage->TexFormat) && 620 screen->is_format_supported(screen, 621 stImage->pt->format, 622 stImage->pt->target, 623 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 624 if (!pixels) 625 goto done; 626 627 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 628 format, type, pixels, unpack, texImage)) { 629 goto done; 630 } 631 } 632 633 if (stImage->pt) { 634 if (format == GL_DEPTH_COMPONENT && 635 util_format_is_depth_and_stencil(stImage->pt->format)) 636 transfer_usage = PIPE_TRANSFER_READ_WRITE; 637 else 638 transfer_usage = PIPE_TRANSFER_WRITE; 639 640 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 641 transfer_usage, 0, 0, 642 stImage->base.Width, 643 stImage->base.Height); 644 if(stImage->transfer) 645 dstRowStride = stImage->transfer->stride; 646 } 647 else { 648 /* Allocate regular memory and store the image there temporarily. */ 649 if (_mesa_is_format_compressed(texImage->TexFormat)) { 650 sizeInBytes = _mesa_format_image_size(texImage->TexFormat, 651 texImage->Width, 652 texImage->Height, 653 texImage->Depth); 654 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width); 655 assert(dims != 3); 656 } 657 else { 658 dstRowStride = postConvWidth * texelBytes; 659 sizeInBytes = depth * dstRowStride * postConvHeight; 660 } 661 662 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 663 } 664 665 if (!texImage->Data) { 666 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 667 return; 668 } 669 670 if (!pixels) 671 goto done; 672 673 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 674 width, height, depth, width * texelBytes, dstRowStride); 675 676 /* Copy data. Would like to know when it's ok for us to eg. use 677 * the blitter to copy. Or, use the hardware to do the format 678 * conversion and copy: 679 */ 680 if (compressed_src) { 681 const GLuint srcImageStride = _mesa_format_row_stride(texImage->TexFormat, width); 682 if(dstRowStride == srcImageStride) 683 memcpy(texImage->Data, pixels, imageSize); 684 else 685 { 686 char *dst = texImage->Data; 687 const char *src = pixels; 688 GLuint i, bw, bh, lines; 689 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh); 690 lines = (height + bh - 1) / bh; 691 692 for(i = 0; i < lines; ++i) 693 { 694 memcpy(dst, src, srcImageStride); 695 dst += dstRowStride; 696 src += srcImageStride; 697 } 698 } 699 } 700 else { 701 const GLuint srcImageStride = 702 _mesa_image_image_stride(unpack, width, height, format, type); 703 GLint i; 704 const GLubyte *src = (const GLubyte *) pixels; 705 706 for (i = 0; i < depth; i++) { 707 if (!_mesa_texstore(ctx, dims, 708 texImage->_BaseFormat, 709 texImage->TexFormat, 710 texImage->Data, 711 0, 0, 0, /* dstX/Y/Zoffset */ 712 dstRowStride, 713 texImage->ImageOffsets, 714 width, height, 1, 715 format, type, src, unpack)) { 716 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 717 } 718 719 if (stImage->pt && i + 1 < depth) { 720 /* unmap this slice */ 721 st_texture_image_unmap(ctx->st, stImage); 722 /* map next slice of 3D texture */ 723 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 724 transfer_usage, 0, 0, 725 stImage->base.Width, 726 stImage->base.Height); 727 src += srcImageStride; 728 } 729 } 730 } 731 732done: 733 _mesa_unmap_teximage_pbo(ctx, unpack); 734 735 if (stImage->pt && texImage->Data) { 736 st_texture_image_unmap(ctx->st, stImage); 737 texImage->Data = NULL; 738 } 739} 740 741 742static void 743st_TexImage3D(GLcontext * ctx, 744 GLenum target, GLint level, 745 GLint internalFormat, 746 GLint width, GLint height, GLint depth, 747 GLint border, 748 GLenum format, GLenum type, const void *pixels, 749 const struct gl_pixelstore_attrib *unpack, 750 struct gl_texture_object *texObj, 751 struct gl_texture_image *texImage) 752{ 753 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 754 border, format, type, pixels, unpack, texObj, texImage, 755 0, GL_FALSE); 756} 757 758 759static void 760st_TexImage2D(GLcontext * ctx, 761 GLenum target, GLint level, 762 GLint internalFormat, 763 GLint width, GLint height, GLint border, 764 GLenum format, GLenum type, const void *pixels, 765 const struct gl_pixelstore_attrib *unpack, 766 struct gl_texture_object *texObj, 767 struct gl_texture_image *texImage) 768{ 769 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 770 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 771} 772 773 774static void 775st_TexImage1D(GLcontext * ctx, 776 GLenum target, GLint level, 777 GLint internalFormat, 778 GLint width, GLint border, 779 GLenum format, GLenum type, const void *pixels, 780 const struct gl_pixelstore_attrib *unpack, 781 struct gl_texture_object *texObj, 782 struct gl_texture_image *texImage) 783{ 784 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 785 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 786} 787 788 789static void 790st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 791 GLint internalFormat, 792 GLint width, GLint height, GLint border, 793 GLsizei imageSize, const GLvoid *data, 794 struct gl_texture_object *texObj, 795 struct gl_texture_image *texImage) 796{ 797 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 798 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 799} 800 801 802 803/** 804 * glGetTexImage() helper: decompress a compressed texture by rendering 805 * a textured quad. Store the results in the user's buffer. 806 */ 807static void 808decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 809 GLenum format, GLenum type, GLvoid *pixels, 810 struct gl_texture_object *texObj, 811 struct gl_texture_image *texImage) 812{ 813 struct pipe_context *pipe = ctx->st->pipe; 814 struct pipe_screen *screen = pipe->screen; 815 struct st_texture_image *stImage = st_texture_image(texImage); 816 const GLuint width = texImage->Width; 817 const GLuint height = texImage->Height; 818 struct pipe_surface *dst_surface; 819 struct pipe_texture *dst_texture; 820 struct pipe_transfer *tex_xfer; 821 822 /* create temp / dest surface */ 823 if (!util_create_rgba_surface(screen, width, height, 824 &dst_texture, &dst_surface)) { 825 _mesa_problem(ctx, "util_create_rgba_surface() failed " 826 "in decompress_with_blit()"); 827 return; 828 } 829 830 /* blit/render/decompress */ 831 util_blit_pixels_tex(ctx->st->blit, 832 stImage->pt, /* pipe_texture (src) */ 833 0, 0, /* src x0, y0 */ 834 width, height, /* src x1, y1 */ 835 dst_surface, /* pipe_surface (dst) */ 836 0, 0, /* dst x0, y0 */ 837 width, height, /* dst x1, y1 */ 838 0.0, /* z */ 839 PIPE_TEX_MIPFILTER_NEAREST); 840 841 /* map the dst_surface so we can read from it */ 842 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 843 dst_texture, 0, 0, 0, 844 PIPE_TRANSFER_READ, 845 0, 0, width, height); 846 847 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 848 849 /* copy/pack data into user buffer */ 850 if (st_equal_formats(stImage->pt->format, format, type)) { 851 /* memcpy */ 852 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); 853 ubyte *map = pipe->transfer_map(pipe, tex_xfer); 854 GLuint row; 855 for (row = 0; row < height; row++) { 856 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 857 height, format, type, row, 0); 858 memcpy(dest, map, bytesPerRow); 859 map += tex_xfer->stride; 860 } 861 pipe->transfer_unmap(pipe, tex_xfer); 862 } 863 else { 864 /* format translation via floats */ 865 GLuint row; 866 for (row = 0; row < height; row++) { 867 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 868 GLfloat rgba[4 * MAX_WIDTH]; 869 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 870 height, format, type, row, 0); 871 872 if (ST_DEBUG & DEBUG_FALLBACK) 873 debug_printf("%s: fallback format translation\n", __FUNCTION__); 874 875 /* get float[4] rgba row from surface */ 876 pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba); 877 878 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 879 type, dest, &ctx->Pack, transferOps); 880 } 881 } 882 883 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 884 885 /* destroy the temp / dest surface */ 886 util_destroy_rgba_surface(dst_texture, dst_surface); 887} 888 889 890 891/** 892 * Need to map texture image into memory before copying image data, 893 * then unmap it. 894 */ 895static void 896st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 897 GLenum format, GLenum type, GLvoid * pixels, 898 struct gl_texture_object *texObj, 899 struct gl_texture_image *texImage, GLboolean compressed_dst) 900{ 901 struct st_texture_image *stImage = st_texture_image(texImage); 902 const GLuint dstImageStride = 903 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 904 format, type); 905 GLuint depth, i; 906 GLubyte *dest; 907 908 if (stImage->pt && 909 util_format_is_compressed(stImage->pt->format) && 910 !compressed_dst) { 911 /* Need to decompress the texture. 912 * We'll do this by rendering a textured quad. 913 * Note that we only expect RGBA formats (no Z/depth formats). 914 */ 915 decompress_with_blit(ctx, target, level, format, type, pixels, 916 texObj, texImage); 917 return; 918 } 919 920 /* Map */ 921 if (stImage->pt) { 922 /* Image is stored in hardware format in a buffer managed by the 923 * kernel. Need to explicitly map and unmap it. 924 */ 925 unsigned face = _mesa_tex_target_to_face(target); 926 927 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 928 PIPE_TRANSFER_READ); 929 930 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 931 PIPE_TRANSFER_READ, 0, 0, 932 stImage->base.Width, 933 stImage->base.Height); 934 texImage->RowStride = stImage->transfer->stride / util_format_get_blocksize(stImage->pt->format); 935 } 936 else { 937 /* Otherwise, the image should actually be stored in 938 * texImage->Data. This is pretty confusing for 939 * everybody, I'd much prefer to separate the two functions of 940 * texImage->Data - storage for texture images in main memory 941 * and access (ie mappings) of images. In other words, we'd 942 * create a new texImage->Map field and leave Data simply for 943 * storage. 944 */ 945 assert(texImage->Data); 946 } 947 948 depth = texImage->Depth; 949 texImage->Depth = 1; 950 951 dest = (GLubyte *) pixels; 952 953 for (i = 0; i < depth; i++) { 954 if (compressed_dst) { 955 _mesa_get_compressed_teximage(ctx, target, level, dest, 956 texObj, texImage); 957 } 958 else { 959 _mesa_get_teximage(ctx, target, level, format, type, dest, 960 texObj, texImage); 961 } 962 963 if (stImage->pt && i + 1 < depth) { 964 /* unmap this slice */ 965 st_texture_image_unmap(ctx->st, stImage); 966 /* map next slice of 3D texture */ 967 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 968 PIPE_TRANSFER_READ, 0, 0, 969 stImage->base.Width, 970 stImage->base.Height); 971 dest += dstImageStride; 972 } 973 } 974 975 texImage->Depth = depth; 976 977 /* Unmap */ 978 if (stImage->pt) { 979 st_texture_image_unmap(ctx->st, stImage); 980 texImage->Data = NULL; 981 } 982} 983 984 985static void 986st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 987 GLenum format, GLenum type, GLvoid * pixels, 988 struct gl_texture_object *texObj, 989 struct gl_texture_image *texImage) 990{ 991 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 992 GL_FALSE); 993} 994 995 996static void 997st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 998 GLvoid *pixels, 999 struct gl_texture_object *texObj, 1000 struct gl_texture_image *texImage) 1001{ 1002 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1003 GL_TRUE); 1004} 1005 1006 1007 1008static void 1009st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1010 GLint xoffset, GLint yoffset, GLint zoffset, 1011 GLint width, GLint height, GLint depth, 1012 GLenum format, GLenum type, const void *pixels, 1013 const struct gl_pixelstore_attrib *packing, 1014 struct gl_texture_object *texObj, 1015 struct gl_texture_image *texImage) 1016{ 1017 struct pipe_screen *screen = ctx->st->pipe->screen; 1018 struct st_texture_image *stImage = st_texture_image(texImage); 1019 GLuint dstRowStride; 1020 const GLuint srcImageStride = 1021 _mesa_image_image_stride(packing, width, height, format, type); 1022 GLint i; 1023 const GLubyte *src; 1024 /* init to silence warning only: */ 1025 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1026 1027 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1028 _mesa_lookup_enum_by_nr(target), 1029 level, xoffset, yoffset, width, height); 1030 1031 pixels = 1032 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1033 type, pixels, packing, "glTexSubImage2D"); 1034 if (!pixels) 1035 return; 1036 1037 /* See if we can do texture compression with a blit/render. 1038 */ 1039 if (!ctx->Mesa_DXTn && 1040 _mesa_is_format_compressed(texImage->TexFormat) && 1041 screen->is_format_supported(screen, 1042 stImage->pt->format, 1043 stImage->pt->target, 1044 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1045 if (compress_with_blit(ctx, target, level, 1046 xoffset, yoffset, zoffset, 1047 width, height, depth, 1048 format, type, pixels, packing, texImage)) { 1049 goto done; 1050 } 1051 } 1052 1053 /* Map buffer if necessary. Need to lock to prevent other contexts 1054 * from uploading the buffer under us. 1055 */ 1056 if (stImage->pt) { 1057 unsigned face = _mesa_tex_target_to_face(target); 1058 1059 if (format == GL_DEPTH_COMPONENT && 1060 util_format_is_depth_and_stencil(stImage->pt->format)) 1061 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1062 else 1063 transfer_usage = PIPE_TRANSFER_WRITE; 1064 1065 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1066 transfer_usage); 1067 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1068 transfer_usage, 1069 xoffset, yoffset, 1070 width, height); 1071 } 1072 1073 if (!texImage->Data) { 1074 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1075 goto done; 1076 } 1077 1078 src = (const GLubyte *) pixels; 1079 dstRowStride = stImage->transfer->stride; 1080 1081 for (i = 0; i < depth; i++) { 1082 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat, 1083 texImage->TexFormat, 1084 texImage->Data, 1085 0, 0, 0, 1086 dstRowStride, 1087 texImage->ImageOffsets, 1088 width, height, 1, 1089 format, type, src, packing)) { 1090 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1091 } 1092 1093 if (stImage->pt && i + 1 < depth) { 1094 /* unmap this slice */ 1095 st_texture_image_unmap(ctx->st, stImage); 1096 /* map next slice of 3D texture */ 1097 texImage->Data = st_texture_image_map(ctx->st, stImage, 1098 zoffset + i + 1, 1099 transfer_usage, 1100 xoffset, yoffset, 1101 width, height); 1102 src += srcImageStride; 1103 } 1104 } 1105 1106done: 1107 _mesa_unmap_teximage_pbo(ctx, packing); 1108 1109 if (stImage->pt && texImage->Data) { 1110 st_texture_image_unmap(ctx->st, stImage); 1111 texImage->Data = NULL; 1112 } 1113} 1114 1115 1116 1117static void 1118st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1119 GLint xoffset, GLint yoffset, GLint zoffset, 1120 GLsizei width, GLsizei height, GLsizei depth, 1121 GLenum format, GLenum type, const GLvoid *pixels, 1122 const struct gl_pixelstore_attrib *packing, 1123 struct gl_texture_object *texObj, 1124 struct gl_texture_image *texImage) 1125{ 1126 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1127 width, height, depth, format, type, 1128 pixels, packing, texObj, texImage); 1129} 1130 1131 1132static void 1133st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1134 GLint xoffset, GLint yoffset, 1135 GLsizei width, GLsizei height, 1136 GLenum format, GLenum type, const GLvoid * pixels, 1137 const struct gl_pixelstore_attrib *packing, 1138 struct gl_texture_object *texObj, 1139 struct gl_texture_image *texImage) 1140{ 1141 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1142 width, height, 1, format, type, 1143 pixels, packing, texObj, texImage); 1144} 1145 1146 1147static void 1148st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1149 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1150 const GLvoid * pixels, 1151 const struct gl_pixelstore_attrib *packing, 1152 struct gl_texture_object *texObj, 1153 struct gl_texture_image *texImage) 1154{ 1155 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1156 format, type, pixels, packing, texObj, texImage); 1157} 1158 1159 1160static void 1161st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1162 GLint xoffset, GLsizei width, 1163 GLenum format, 1164 GLsizei imageSize, const GLvoid *data, 1165 struct gl_texture_object *texObj, 1166 struct gl_texture_image *texImage) 1167{ 1168 assert(0); 1169} 1170 1171 1172static void 1173st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1174 GLint xoffset, GLint yoffset, 1175 GLsizei width, GLint height, 1176 GLenum format, 1177 GLsizei imageSize, const GLvoid *data, 1178 struct gl_texture_object *texObj, 1179 struct gl_texture_image *texImage) 1180{ 1181 struct st_texture_image *stImage = st_texture_image(texImage); 1182 int srcBlockStride; 1183 int dstBlockStride; 1184 int y; 1185 enum pipe_format pformat= stImage->pt->format; 1186 1187 if (stImage->pt) { 1188 unsigned face = _mesa_tex_target_to_face(target); 1189 1190 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1191 PIPE_TRANSFER_WRITE); 1192 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1193 PIPE_TRANSFER_WRITE, 1194 xoffset, yoffset, 1195 width, height); 1196 1197 srcBlockStride = util_format_get_stride(pformat, width); 1198 dstBlockStride = stImage->transfer->stride; 1199 } else { 1200 assert(stImage->pt); 1201 /* TODO find good values for block and strides */ 1202 /* TODO also adjust texImage->data for yoffset/xoffset */ 1203 return; 1204 } 1205 1206 if (!texImage->Data) { 1207 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1208 return; 1209 } 1210 1211 assert(xoffset % util_format_get_blockwidth(pformat) == 0); 1212 assert(yoffset % util_format_get_blockheight(pformat) == 0); 1213 assert(width % util_format_get_blockwidth(pformat) == 0); 1214 assert(height % util_format_get_blockheight(pformat) == 0); 1215 1216 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) { 1217 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1218 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y); 1219 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y); 1220 memcpy(dst, src, util_format_get_stride(pformat, width)); 1221 } 1222 1223 if (stImage->pt) { 1224 st_texture_image_unmap(ctx->st, stImage); 1225 texImage->Data = NULL; 1226 } 1227} 1228 1229 1230static void 1231st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1232 GLint xoffset, GLint yoffset, GLint zoffset, 1233 GLsizei width, GLint height, GLint depth, 1234 GLenum format, 1235 GLsizei imageSize, const GLvoid *data, 1236 struct gl_texture_object *texObj, 1237 struct gl_texture_image *texImage) 1238{ 1239 assert(0); 1240} 1241 1242 1243 1244/** 1245 * Do a CopyTexSubImage operation using a read transfer from the source, 1246 * a write transfer to the destination and get_tile()/put_tile() to access 1247 * the pixels/texels. 1248 * 1249 * Note: srcY=0=TOP of renderbuffer 1250 */ 1251static void 1252fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1253 struct st_renderbuffer *strb, 1254 struct st_texture_image *stImage, 1255 GLenum baseFormat, 1256 GLint destX, GLint destY, GLint destZ, 1257 GLint srcX, GLint srcY, 1258 GLsizei width, GLsizei height) 1259{ 1260 struct pipe_context *pipe = ctx->st->pipe; 1261 struct pipe_transfer *src_trans; 1262 GLvoid *texDest; 1263 enum pipe_transfer_usage transfer_usage; 1264 1265 if (ST_DEBUG & DEBUG_FALLBACK) 1266 debug_printf("%s: fallback processing\n", __FUNCTION__); 1267 1268 assert(width <= MAX_WIDTH); 1269 1270 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1271 srcY = strb->Base.Height - srcY - height; 1272 } 1273 1274 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1275 strb->texture, 1276 0, 0, 0, 1277 PIPE_TRANSFER_READ, 1278 srcX, srcY, 1279 width, height); 1280 1281 if ((baseFormat == GL_DEPTH_COMPONENT || 1282 baseFormat == GL_DEPTH_STENCIL) && 1283 util_format_is_depth_and_stencil(stImage->pt->format)) 1284 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1285 else 1286 transfer_usage = PIPE_TRANSFER_WRITE; 1287 1288 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1289 transfer_usage); 1290 1291 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1292 destX, destY, width, height); 1293 1294 if (baseFormat == GL_DEPTH_COMPONENT || 1295 baseFormat == GL_DEPTH_STENCIL) { 1296 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1297 ctx->Pixel.DepthBias != 0.0F); 1298 GLint row, yStep; 1299 1300 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1301 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1302 srcY = height - 1; 1303 yStep = -1; 1304 } 1305 else { 1306 srcY = 0; 1307 yStep = 1; 1308 } 1309 1310 /* To avoid a large temp memory allocation, do copy row by row */ 1311 for (row = 0; row < height; row++, srcY += yStep) { 1312 uint data[MAX_WIDTH]; 1313 pipe_get_tile_z(src_trans, 0, srcY, width, 1, data); 1314 if (scaleOrBias) { 1315 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1316 } 1317 pipe_put_tile_z(stImage->transfer, 0, row, width, 1, data); 1318 } 1319 } 1320 else { 1321 /* RGBA format */ 1322 GLfloat *tempSrc = 1323 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); 1324 1325 if (tempSrc && texDest) { 1326 const GLint dims = 2; 1327 const GLint dstRowStride = stImage->transfer->stride; 1328 struct gl_texture_image *texImage = &stImage->base; 1329 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1330 1331 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1332 unpack.Invert = GL_TRUE; 1333 } 1334 1335 /* get float/RGBA image from framebuffer */ 1336 /* XXX this usually involves a lot of int/float conversion. 1337 * try to avoid that someday. 1338 */ 1339 pipe_get_tile_rgba(src_trans, 0, 0, width, height, tempSrc); 1340 1341 /* Store into texture memory. 1342 * Note that this does some special things such as pixel transfer 1343 * ops and format conversion. In particular, if the dest tex format 1344 * is actually RGBA but the user created the texture as GL_RGB we 1345 * need to fill-in/override the alpha channel with 1.0. 1346 */ 1347 _mesa_texstore(ctx, dims, 1348 texImage->_BaseFormat, 1349 texImage->TexFormat, 1350 texDest, 1351 0, 0, 0, 1352 dstRowStride, 1353 texImage->ImageOffsets, 1354 width, height, 1, 1355 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1356 &unpack); 1357 } 1358 else { 1359 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1360 } 1361 1362 if (tempSrc) 1363 free(tempSrc); 1364 } 1365 1366 st_texture_image_unmap(ctx->st, stImage); 1367 pipe->tex_transfer_destroy(src_trans); 1368} 1369 1370 1371 1372/** 1373 * If the format of the src renderbuffer and the format of the dest 1374 * texture are compatible (in terms of blitting), return a TGSI writemask 1375 * to be used during the blit. 1376 * If the src/dest are incompatible, return 0. 1377 */ 1378static unsigned 1379compatible_src_dst_formats(GLcontext *ctx, 1380 const struct gl_renderbuffer *src, 1381 const struct gl_texture_image *dst) 1382{ 1383 /* Get logical base formats for the src and dest. 1384 * That is, use the user-requested formats and not the actual, device- 1385 * chosen formats. 1386 * For example, the user may have requested an A8 texture but the 1387 * driver may actually be using an RGBA texture format. When we 1388 * copy/blit to that texture, we only want to copy the Alpha channel 1389 * and not the RGB channels. 1390 * 1391 * Similarly, when the src FBO was created an RGB format may have been 1392 * requested but the driver actually chose an RGBA format. In that case, 1393 * we don't want to copy the undefined Alpha channel to the dest texture 1394 * (it should be 1.0). 1395 */ 1396 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat); 1397 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat); 1398 1399 /** 1400 * XXX when we have red-only and red/green renderbuffers we'll need 1401 * to add more cases here (or implement a general-purpose routine that 1402 * queries the existance of the R,G,B,A channels in the src and dest). 1403 */ 1404 if (srcFormat == dstFormat) { 1405 /* This is the same as matching_base_formats, which should 1406 * always pass, as it did previously. 1407 */ 1408 return TGSI_WRITEMASK_XYZW; 1409 } 1410 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) { 1411 /* Make sure that A in the dest is 1. The actual src format 1412 * may be RGBA and have undefined A values. 1413 */ 1414 return TGSI_WRITEMASK_XYZ; 1415 } 1416 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) { 1417 /* Make sure that A in the dest is 1. The actual dst format 1418 * may be RGBA and will need A=1 to provide proper alpha values 1419 * when sampled later. 1420 */ 1421 return TGSI_WRITEMASK_XYZ; 1422 } 1423 else { 1424 if (ST_DEBUG & DEBUG_FALLBACK) 1425 debug_printf("%s failed for src %s, dst %s\n", 1426 __FUNCTION__, 1427 _mesa_lookup_enum_by_nr(srcFormat), 1428 _mesa_lookup_enum_by_nr(dstFormat)); 1429 1430 /* Otherwise fail. 1431 */ 1432 return 0; 1433 } 1434} 1435 1436 1437 1438/** 1439 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1440 * Note that the region to copy has already been clipped so we know we 1441 * won't read from outside the source renderbuffer's bounds. 1442 * 1443 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1444 */ 1445static void 1446st_copy_texsubimage(GLcontext *ctx, 1447 GLenum target, GLint level, 1448 GLint destX, GLint destY, GLint destZ, 1449 GLint srcX, GLint srcY, 1450 GLsizei width, GLsizei height) 1451{ 1452 struct gl_texture_unit *texUnit = 1453 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1454 struct gl_texture_object *texObj = 1455 _mesa_select_tex_object(ctx, texUnit, target); 1456 struct gl_texture_image *texImage = 1457 _mesa_select_tex_image(ctx, texObj, target, level); 1458 struct st_texture_image *stImage = st_texture_image(texImage); 1459 const GLenum texBaseFormat = texImage->_BaseFormat; 1460 struct gl_framebuffer *fb = ctx->ReadBuffer; 1461 struct st_renderbuffer *strb; 1462 struct pipe_context *pipe = ctx->st->pipe; 1463 struct pipe_screen *screen = pipe->screen; 1464 enum pipe_format dest_format, src_format; 1465 GLboolean use_fallback = GL_TRUE; 1466 GLboolean matching_base_formats; 1467 GLuint format_writemask; 1468 struct pipe_surface *dest_surface = NULL; 1469 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1470 1471 /* any rendering in progress must flushed before we grab the fb image */ 1472 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1473 1474 /* make sure finalize_textures has been called? 1475 */ 1476 if (0) st_validate_state(ctx->st); 1477 1478 /* determine if copying depth or color data */ 1479 if (texBaseFormat == GL_DEPTH_COMPONENT || 1480 texBaseFormat == GL_DEPTH_STENCIL) { 1481 strb = st_renderbuffer(fb->_DepthBuffer); 1482 } 1483 else { 1484 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1485 strb = st_renderbuffer(fb->_ColorReadBuffer); 1486 } 1487 1488 if (!strb || !strb->surface || !stImage->pt) { 1489 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1490 return; 1491 } 1492 1493 if (srcX < 0) { 1494 width -= -srcX; 1495 destX += -srcX; 1496 srcX = 0; 1497 } 1498 1499 if (srcY < 0) { 1500 height -= -srcY; 1501 destY += -srcY; 1502 srcY = 0; 1503 } 1504 1505 if (destX < 0) { 1506 width -= -destX; 1507 srcX += -destX; 1508 destX = 0; 1509 } 1510 1511 if (destY < 0) { 1512 height -= -destY; 1513 srcY += -destY; 1514 destY = 0; 1515 } 1516 1517 if (width < 0 || height < 0) 1518 return; 1519 1520 1521 assert(strb); 1522 assert(strb->surface); 1523 assert(stImage->pt); 1524 1525 src_format = strb->surface->format; 1526 dest_format = stImage->pt->format; 1527 1528 /* 1529 * Determine if the src framebuffer and dest texture have the same 1530 * base format. We need this to detect a case such as the framebuffer 1531 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1532 * texture format stores RGBA we need to set A=1 (overriding the 1533 * framebuffer's alpha values). We can't do that with the blit or 1534 * textured-quad paths. 1535 */ 1536 matching_base_formats = 1537 (_mesa_get_format_base_format(strb->Base.Format) == 1538 _mesa_get_format_base_format(texImage->TexFormat)); 1539 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage); 1540 1541 if (ctx->_ImageTransferState == 0x0) { 1542 1543 if (pipe->surface_copy && 1544 matching_base_formats && 1545 src_format == dest_format && 1546 !do_flip) 1547 { 1548 /* use surface_copy() / blit */ 1549 1550 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1551 stImage->face, stImage->level, 1552 destZ, 1553 PIPE_BUFFER_USAGE_GPU_WRITE); 1554 1555 /* for surface_copy(), y=0=top, always */ 1556 pipe->surface_copy(pipe, 1557 /* dest */ 1558 dest_surface, 1559 destX, destY, 1560 /* src */ 1561 strb->surface, 1562 srcX, srcY, 1563 /* size */ 1564 width, height); 1565 use_fallback = GL_FALSE; 1566 } 1567 else if (format_writemask && 1568 texBaseFormat != GL_DEPTH_COMPONENT && 1569 texBaseFormat != GL_DEPTH_STENCIL && 1570 screen->is_format_supported(screen, src_format, 1571 PIPE_TEXTURE_2D, 1572 PIPE_TEXTURE_USAGE_SAMPLER, 1573 0) && 1574 screen->is_format_supported(screen, dest_format, 1575 PIPE_TEXTURE_2D, 1576 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1577 0)) { 1578 /* draw textured quad to do the copy */ 1579 GLint srcY0, srcY1; 1580 1581 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1582 stImage->face, stImage->level, 1583 destZ, 1584 PIPE_BUFFER_USAGE_GPU_WRITE); 1585 1586 if (do_flip) { 1587 srcY1 = strb->Base.Height - srcY - height; 1588 srcY0 = srcY1 + height; 1589 } 1590 else { 1591 srcY0 = srcY; 1592 srcY1 = srcY0 + height; 1593 } 1594 util_blit_pixels_writemask(ctx->st->blit, 1595 strb->surface, 1596 srcX, srcY0, 1597 srcX + width, srcY1, 1598 dest_surface, 1599 destX, destY, 1600 destX + width, destY + height, 1601 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1602 format_writemask); 1603 use_fallback = GL_FALSE; 1604 } 1605 1606 if (dest_surface) 1607 pipe_surface_reference(&dest_surface, NULL); 1608 } 1609 1610 if (use_fallback) { 1611 /* software fallback */ 1612 fallback_copy_texsubimage(ctx, target, level, 1613 strb, stImage, texBaseFormat, 1614 destX, destY, destZ, 1615 srcX, srcY, width, height); 1616 } 1617} 1618 1619 1620 1621static void 1622st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1623 GLenum internalFormat, 1624 GLint x, GLint y, GLsizei width, GLint border) 1625{ 1626 struct gl_texture_unit *texUnit = 1627 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1628 struct gl_texture_object *texObj = 1629 _mesa_select_tex_object(ctx, texUnit, target); 1630 struct gl_texture_image *texImage = 1631 _mesa_select_tex_image(ctx, texObj, target, level); 1632 1633 /* Setup or redefine the texture object, texture and texture 1634 * image. Don't populate yet. 1635 */ 1636 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1637 width, border, 1638 GL_RGBA, CHAN_TYPE, NULL, 1639 &ctx->DefaultPacking, texObj, texImage); 1640 1641 st_copy_texsubimage(ctx, target, level, 1642 0, 0, 0, /* destX,Y,Z */ 1643 x, y, width, 1); /* src X, Y, size */ 1644} 1645 1646 1647static void 1648st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1649 GLenum internalFormat, 1650 GLint x, GLint y, GLsizei width, GLsizei height, 1651 GLint border) 1652{ 1653 struct gl_texture_unit *texUnit = 1654 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1655 struct gl_texture_object *texObj = 1656 _mesa_select_tex_object(ctx, texUnit, target); 1657 struct gl_texture_image *texImage = 1658 _mesa_select_tex_image(ctx, texObj, target, level); 1659 1660 /* Setup or redefine the texture object, texture and texture 1661 * image. Don't populate yet. 1662 */ 1663 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1664 width, height, border, 1665 GL_RGBA, CHAN_TYPE, NULL, 1666 &ctx->DefaultPacking, texObj, texImage); 1667 1668 st_copy_texsubimage(ctx, target, level, 1669 0, 0, 0, /* destX,Y,Z */ 1670 x, y, width, height); /* src X, Y, size */ 1671} 1672 1673 1674static void 1675st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1676 GLint xoffset, GLint x, GLint y, GLsizei width) 1677{ 1678 const GLint yoffset = 0, zoffset = 0; 1679 const GLsizei height = 1; 1680 st_copy_texsubimage(ctx, target, level, 1681 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1682 x, y, width, height); /* src X, Y, size */ 1683} 1684 1685 1686static void 1687st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1688 GLint xoffset, GLint yoffset, 1689 GLint x, GLint y, GLsizei width, GLsizei height) 1690{ 1691 const GLint zoffset = 0; 1692 st_copy_texsubimage(ctx, target, level, 1693 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1694 x, y, width, height); /* src X, Y, size */ 1695} 1696 1697 1698static void 1699st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1700 GLint xoffset, GLint yoffset, GLint zoffset, 1701 GLint x, GLint y, GLsizei width, GLsizei height) 1702{ 1703 st_copy_texsubimage(ctx, target, level, 1704 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1705 x, y, width, height); /* src X, Y, size */ 1706} 1707 1708 1709static void 1710copy_image_data_to_texture(struct st_context *st, 1711 struct st_texture_object *stObj, 1712 GLuint dstLevel, 1713 struct st_texture_image *stImage) 1714{ 1715 if (stImage->pt) { 1716 /* Copy potentially with the blitter: 1717 */ 1718 st_texture_image_copy(st->pipe, 1719 stObj->pt, dstLevel, /* dest texture, level */ 1720 stImage->pt, /* src texture */ 1721 stImage->face); 1722 1723 pipe_texture_reference(&stImage->pt, NULL); 1724 } 1725 else if (stImage->base.Data) { 1726 /* More straightforward upload. 1727 */ 1728 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1729 PIPE_TRANSFER_WRITE); 1730 1731 st_texture_image_data(st, 1732 stObj->pt, 1733 stImage->face, 1734 dstLevel, 1735 stImage->base.Data, 1736 stImage->base.RowStride * 1737 util_format_get_blocksize(stObj->pt->format), 1738 stImage->base.RowStride * 1739 stImage->base.Height * 1740 util_format_get_blocksize(stObj->pt->format)); 1741 _mesa_align_free(stImage->base.Data); 1742 stImage->base.Data = NULL; 1743 } 1744 1745 pipe_texture_reference(&stImage->pt, stObj->pt); 1746} 1747 1748 1749/** 1750 * Called during state validation. When this function is finished, 1751 * the texture object should be ready for rendering. 1752 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1753 */ 1754GLboolean 1755st_finalize_texture(GLcontext *ctx, 1756 struct pipe_context *pipe, 1757 struct gl_texture_object *tObj, 1758 GLboolean *needFlush) 1759{ 1760 struct st_texture_object *stObj = st_texture_object(tObj); 1761 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1762 GLuint blockSize, face; 1763 struct st_texture_image *firstImage; 1764 1765 *needFlush = GL_FALSE; 1766 1767 if (stObj->base._Complete) { 1768 /* The texture is complete and we know exactly how many mipmap levels 1769 * are present/needed. This is conditional because we may be called 1770 * from the st_generate_mipmap() function when the texture object is 1771 * incomplete. In that case, we'll have set stObj->lastLevel before 1772 * we get here. 1773 */ 1774 if (stObj->base.MinFilter == GL_LINEAR || 1775 stObj->base.MinFilter == GL_NEAREST) 1776 stObj->lastLevel = stObj->base.BaseLevel; 1777 else 1778 stObj->lastLevel = stObj->base._MaxLevel - stObj->base.BaseLevel; 1779 } 1780 1781 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1782 1783 /* If both firstImage and stObj point to a texture which can contain 1784 * all active images, favour firstImage. Note that because of the 1785 * completeness requirement, we know that the image dimensions 1786 * will match. 1787 */ 1788 if (firstImage->pt && 1789 firstImage->pt != stObj->pt && 1790 firstImage->pt->last_level >= stObj->lastLevel) { 1791 pipe_texture_reference(&stObj->pt, firstImage->pt); 1792 } 1793 1794 /* bytes per pixel block (blocks are usually 1x1) */ 1795 blockSize = _mesa_get_format_bytes(firstImage->base.TexFormat); 1796 1797 /* If we already have a gallium texture, check that it matches the texture 1798 * object's format, target, size, num_levels, etc. 1799 */ 1800 if (stObj->pt) { 1801 const enum pipe_format fmt = 1802 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1803 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1804 stObj->pt->format != fmt || 1805 stObj->pt->last_level < stObj->lastLevel || 1806 stObj->pt->width0 != firstImage->base.Width2 || 1807 stObj->pt->height0 != firstImage->base.Height2 || 1808 stObj->pt->depth0 != firstImage->base.Depth2) 1809 { 1810 pipe_texture_reference(&stObj->pt, NULL); 1811 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1812 } 1813 } 1814 1815 /* May need to create a new gallium texture: 1816 */ 1817 if (!stObj->pt) { 1818 const enum pipe_format fmt = 1819 st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1820 GLuint usage = default_usage(fmt); 1821 1822 stObj->pt = st_texture_create(ctx->st, 1823 gl_target_to_pipe(stObj->base.Target), 1824 fmt, 1825 stObj->lastLevel, 1826 firstImage->base.Width2, 1827 firstImage->base.Height2, 1828 firstImage->base.Depth2, 1829 usage); 1830 1831 if (!stObj->pt) { 1832 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1833 return GL_FALSE; 1834 } 1835 } 1836 1837 /* Pull in any images not in the object's texture: 1838 */ 1839 for (face = 0; face < nr_faces; face++) { 1840 GLuint level; 1841 for (level = 0; level <= stObj->lastLevel; level++) { 1842 struct st_texture_image *stImage = 1843 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1844 1845 /* Need to import images in main memory or held in other textures. 1846 */ 1847 if (stImage && stObj->pt != stImage->pt) { 1848 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1849 *needFlush = GL_TRUE; 1850 } 1851 } 1852 } 1853 1854 return GL_TRUE; 1855} 1856 1857 1858/** 1859 * Returns pointer to a default/dummy texture. 1860 * This is typically used when the current shader has tex/sample instructions 1861 * but the user has not provided a (any) texture(s). 1862 */ 1863struct gl_texture_object * 1864st_get_default_texture(struct st_context *st) 1865{ 1866 if (!st->default_texture) { 1867 static const GLenum target = GL_TEXTURE_2D; 1868 GLubyte pixels[16][16][4]; 1869 struct gl_texture_object *texObj; 1870 struct gl_texture_image *texImg; 1871 GLuint i, j; 1872 1873 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1874 * when attempting to sample incomplete textures. 1875 */ 1876 for (i = 0; i < 16; i++) { 1877 for (j = 0; j < 16; j++) { 1878 pixels[i][j][0] = 0; 1879 pixels[i][j][1] = 0; 1880 pixels[i][j][2] = 0; 1881 pixels[i][j][3] = 255; 1882 } 1883 } 1884 1885 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1886 1887 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1888 1889 _mesa_init_teximage_fields(st->ctx, target, texImg, 1890 16, 16, 1, 0, /* w, h, d, border */ 1891 GL_RGBA); 1892 1893 st_TexImage(st->ctx, 2, target, 1894 0, GL_RGBA, /* level, intformat */ 1895 16, 16, 1, 0, /* w, h, d, border */ 1896 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1897 &st->ctx->DefaultPacking, 1898 texObj, texImg, 1899 0, 0); 1900 1901 texObj->MinFilter = GL_NEAREST; 1902 texObj->MagFilter = GL_NEAREST; 1903 texObj->_Complete = GL_TRUE; 1904 1905 st->default_texture = texObj; 1906 } 1907 return st->default_texture; 1908} 1909 1910 1911void 1912st_init_texture_functions(struct dd_function_table *functions) 1913{ 1914 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1915 functions->TexImage1D = st_TexImage1D; 1916 functions->TexImage2D = st_TexImage2D; 1917 functions->TexImage3D = st_TexImage3D; 1918 functions->TexSubImage1D = st_TexSubImage1D; 1919 functions->TexSubImage2D = st_TexSubImage2D; 1920 functions->TexSubImage3D = st_TexSubImage3D; 1921 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1922 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1923 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1924 functions->CopyTexImage1D = st_CopyTexImage1D; 1925 functions->CopyTexImage2D = st_CopyTexImage2D; 1926 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1927 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1928 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1929 functions->GenerateMipmap = st_generate_mipmap; 1930 1931 functions->GetTexImage = st_GetTexImage; 1932 1933 /* compressed texture functions */ 1934 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1935 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1936 1937 functions->NewTextureObject = st_NewTextureObject; 1938 functions->NewTextureImage = st_NewTextureImage; 1939 functions->DeleteTexture = st_DeleteTextureObject; 1940 functions->FreeTexImageData = st_FreeTextureImageData; 1941 functions->UpdateTexturePalette = 0; 1942 1943 functions->TextureMemCpy = do_memcpy; 1944 1945 /* XXX Temporary until we can query pipe's texture sizes */ 1946 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1947} 1948