st_cb_texture.c revision 8fda97afb8b7a03415dbca6d83691d2d6461126c
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/image.h" 35#include "main/imports.h" 36#include "main/macros.h" 37#include "main/mipmap.h" 38#include "main/pixel.h" 39#include "main/texcompress.h" 40#include "main/texformat.h" 41#include "main/texgetimage.h" 42#include "main/teximage.h" 43#include "main/texobj.h" 44#include "main/texstore.h" 45 46#include "state_tracker/st_context.h" 47#include "state_tracker/st_cb_fbo.h" 48#include "state_tracker/st_cb_texture.h" 49#include "state_tracker/st_format.h" 50#include "state_tracker/st_public.h" 51#include "state_tracker/st_texture.h" 52#include "state_tracker/st_gen_mipmap.h" 53#include "state_tracker/st_inlines.h" 54#include "state_tracker/st_atom.h" 55 56#include "pipe/p_context.h" 57#include "pipe/p_defines.h" 58#include "pipe/p_inlines.h" 59#include "pipe/p_shader_tokens.h" 60#include "util/u_tile.h" 61#include "util/u_blit.h" 62#include "util/u_surface.h" 63#include "util/u_math.h" 64 65 66#define DBG if (0) printf 67 68 69static enum pipe_texture_target 70gl_target_to_pipe(GLenum target) 71{ 72 switch (target) { 73 case GL_TEXTURE_1D: 74 return PIPE_TEXTURE_1D; 75 76 case GL_TEXTURE_2D: 77 case GL_TEXTURE_RECTANGLE_NV: 78 return PIPE_TEXTURE_2D; 79 80 case GL_TEXTURE_3D: 81 return PIPE_TEXTURE_3D; 82 83 case GL_TEXTURE_CUBE_MAP_ARB: 84 return PIPE_TEXTURE_CUBE; 85 86 default: 87 assert(0); 88 return 0; 89 } 90} 91 92 93/** 94 * Return nominal bytes per texel for a compressed format, 0 for non-compressed 95 * format. 96 */ 97static GLuint 98compressed_num_bytes(GLuint mesaFormat) 99{ 100 switch(mesaFormat) { 101#if FEATURE_texture_fxt1 102 case MESA_FORMAT_RGB_FXT1: 103 case MESA_FORMAT_RGBA_FXT1: 104#endif 105#if FEATURE_texture_s3tc 106 case MESA_FORMAT_RGB_DXT1: 107 case MESA_FORMAT_RGBA_DXT1: 108 return 2; 109 case MESA_FORMAT_RGBA_DXT3: 110 case MESA_FORMAT_RGBA_DXT5: 111 return 4; 112#endif 113 default: 114 return 0; 115 } 116} 117 118 119static GLboolean 120is_compressed_mesa_format(const struct gl_texture_format *format) 121{ 122 switch (format->MesaFormat) { 123 case MESA_FORMAT_RGB_DXT1: 124 case MESA_FORMAT_RGBA_DXT1: 125 case MESA_FORMAT_RGBA_DXT3: 126 case MESA_FORMAT_RGBA_DXT5: 127 case MESA_FORMAT_SRGB_DXT1: 128 case MESA_FORMAT_SRGBA_DXT1: 129 case MESA_FORMAT_SRGBA_DXT3: 130 case MESA_FORMAT_SRGBA_DXT5: 131 return GL_TRUE; 132 default: 133 return GL_FALSE; 134 } 135} 136 137 138/** called via ctx->Driver.NewTextureImage() */ 139static struct gl_texture_image * 140st_NewTextureImage(GLcontext * ctx) 141{ 142 DBG("%s\n", __FUNCTION__); 143 (void) ctx; 144 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 145} 146 147 148/** called via ctx->Driver.NewTextureObject() */ 149static struct gl_texture_object * 150st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 151{ 152 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 153 154 DBG("%s\n", __FUNCTION__); 155 _mesa_initialize_texture_object(&obj->base, name, target); 156 157 return &obj->base; 158} 159 160/** called via ctx->Driver.DeleteTextureImage() */ 161static void 162st_DeleteTextureObject(GLcontext *ctx, 163 struct gl_texture_object *texObj) 164{ 165 struct st_texture_object *stObj = st_texture_object(texObj); 166 if (stObj->pt) 167 pipe_texture_reference(&stObj->pt, NULL); 168 169 _mesa_delete_texture_object(ctx, texObj); 170} 171 172 173/** called via ctx->Driver.FreeTexImageData() */ 174static void 175st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 176{ 177 struct st_texture_image *stImage = st_texture_image(texImage); 178 179 DBG("%s\n", __FUNCTION__); 180 181 if (stImage->pt) { 182 pipe_texture_reference(&stImage->pt, NULL); 183 } 184 185 if (texImage->Data) { 186 _mesa_align_free(texImage->Data); 187 texImage->Data = NULL; 188 } 189} 190 191 192/** 193 * From linux kernel i386 header files, copes with odd sizes better 194 * than COPY_DWORDS would: 195 * XXX Put this in src/mesa/main/imports.h ??? 196 */ 197#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) 198static INLINE void * 199__memcpy(void *to, const void *from, size_t n) 200{ 201 int d0, d1, d2; 202 __asm__ __volatile__("rep ; movsl\n\t" 203 "testb $2,%b4\n\t" 204 "je 1f\n\t" 205 "movsw\n" 206 "1:\ttestb $1,%b4\n\t" 207 "je 2f\n\t" 208 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 209 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 210 :"memory"); 211 return (to); 212} 213#else 214#define __memcpy(a,b,c) memcpy(a,b,c) 215#endif 216 217 218/** 219 * The system memcpy (at least on ubuntu 5.10) has problems copying 220 * to agp (writecombined) memory from a source which isn't 64-byte 221 * aligned - there is a 4x performance falloff. 222 * 223 * The x86 __memcpy is immune to this but is slightly slower 224 * (10%-ish) than the system memcpy. 225 * 226 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 227 * isn't much faster than x86_memcpy for agp copies. 228 * 229 * TODO: switch dynamically. 230 */ 231static void * 232do_memcpy(void *dest, const void *src, size_t n) 233{ 234 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { 235 return __memcpy(dest, src, n); 236 } 237 else 238 return memcpy(dest, src, n); 239} 240 241 242/** 243 * Return default texture usage bitmask for the given texture format. 244 */ 245static GLuint 246default_usage(enum pipe_format fmt) 247{ 248 GLuint usage = PIPE_TEXTURE_USAGE_SAMPLER; 249 if (pf_is_depth_stencil(fmt)) 250 usage |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL; 251 else 252 usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET; 253 return usage; 254} 255 256 257/** 258 * Allocate a pipe_texture object for the given st_texture_object using 259 * the given st_texture_image to guess the mipmap size/levels. 260 * 261 * [comments...] 262 * Otherwise, store it in memory if (Border != 0) or (any dimension == 263 * 1). 264 * 265 * Otherwise, if max_level >= level >= min_level, create texture with 266 * space for images from min_level down to max_level. 267 * 268 * Otherwise, create texture with space for images from (level 0)..(1x1). 269 * Consider pruning this texture at a validation if the saving is worth it. 270 */ 271static void 272guess_and_alloc_texture(struct st_context *st, 273 struct st_texture_object *stObj, 274 const struct st_texture_image *stImage) 275{ 276 GLuint firstLevel; 277 GLuint lastLevel; 278 GLuint width = stImage->base.Width2; /* size w/out border */ 279 GLuint height = stImage->base.Height2; 280 GLuint depth = stImage->base.Depth2; 281 GLuint i, usage; 282 enum pipe_format fmt; 283 284 DBG("%s\n", __FUNCTION__); 285 286 assert(!stObj->pt); 287 288 if (stObj->pt && 289 (GLint) stImage->level > stObj->base.BaseLevel && 290 (stImage->base.Width == 1 || 291 (stObj->base.Target != GL_TEXTURE_1D && 292 stImage->base.Height == 1) || 293 (stObj->base.Target == GL_TEXTURE_3D && 294 stImage->base.Depth == 1))) 295 return; 296 297 /* If this image disrespects BaseLevel, allocate from level zero. 298 * Usually BaseLevel == 0, so it's unlikely to happen. 299 */ 300 if ((GLint) stImage->level < stObj->base.BaseLevel) 301 firstLevel = 0; 302 else 303 firstLevel = stObj->base.BaseLevel; 304 305 306 /* Figure out image dimensions at start level. 307 */ 308 for (i = stImage->level; i > firstLevel; i--) { 309 if (width != 1) 310 width <<= 1; 311 if (height != 1) 312 height <<= 1; 313 if (depth != 1) 314 depth <<= 1; 315 } 316 317 if (width == 0 || height == 0 || depth == 0) { 318 /* no texture needed */ 319 return; 320 } 321 322 /* Guess a reasonable value for lastLevel. This is probably going 323 * to be wrong fairly often and might mean that we have to look at 324 * resizable buffers, or require that buffers implement lazy 325 * pagetable arrangements. 326 */ 327 if ((stObj->base.MinFilter == GL_NEAREST || 328 stObj->base.MinFilter == GL_LINEAR || 329 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 330 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 331 stImage->level == firstLevel) { 332 lastLevel = firstLevel; 333 } 334 else { 335 GLuint l2width = util_logbase2(width); 336 GLuint l2height = util_logbase2(height); 337 GLuint l2depth = util_logbase2(depth); 338 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 339 } 340 341 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat); 342 343 usage = default_usage(fmt); 344 345 stObj->pt = st_texture_create(st, 346 gl_target_to_pipe(stObj->base.Target), 347 fmt, 348 lastLevel, 349 width, 350 height, 351 depth, 352 usage); 353 354 DBG("%s - success\n", __FUNCTION__); 355} 356 357 358/** 359 * Adjust pixel unpack params and image dimensions to strip off the 360 * texture border. 361 * Gallium doesn't support texture borders. They've seldem been used 362 * and seldom been implemented correctly anyway. 363 * \param unpackNew returns the new pixel unpack parameters 364 */ 365static void 366strip_texture_border(GLint border, 367 GLint *width, GLint *height, GLint *depth, 368 const struct gl_pixelstore_attrib *unpack, 369 struct gl_pixelstore_attrib *unpackNew) 370{ 371 assert(border > 0); /* sanity check */ 372 373 *unpackNew = *unpack; 374 375 if (unpackNew->RowLength == 0) 376 unpackNew->RowLength = *width; 377 378 if (depth && unpackNew->ImageHeight == 0) 379 unpackNew->ImageHeight = *height; 380 381 unpackNew->SkipPixels += border; 382 if (height) 383 unpackNew->SkipRows += border; 384 if (depth) 385 unpackNew->SkipImages += border; 386 387 assert(*width >= 3); 388 *width = *width - 2 * border; 389 if (height && *height >= 3) 390 *height = *height - 2 * border; 391 if (depth && *depth >= 3) 392 *depth = *depth - 2 * border; 393} 394 395 396/** 397 * Try to do texture compression via rendering. If the Gallium driver 398 * can render into a compressed surface this will allow us to do texture 399 * compression. 400 * \return GL_TRUE for success, GL_FALSE for failure 401 */ 402static GLboolean 403compress_with_blit(GLcontext * ctx, 404 GLenum target, GLint level, 405 GLint xoffset, GLint yoffset, GLint zoffset, 406 GLint width, GLint height, GLint depth, 407 GLenum format, GLenum type, const void *pixels, 408 const struct gl_pixelstore_attrib *unpack, 409 struct gl_texture_image *texImage) 410{ 411 const GLuint dstImageOffsets[1] = {0}; 412 struct st_texture_image *stImage = st_texture_image(texImage); 413 struct pipe_screen *screen = ctx->st->pipe->screen; 414 const struct gl_texture_format *mesa_format; 415 struct pipe_texture templ; 416 struct pipe_texture *src_tex; 417 struct pipe_surface *dst_surface; 418 struct pipe_transfer *tex_xfer; 419 void *map; 420 421 422 if (!stImage->pt) { 423 /* XXX: Can this happen? Should we assert? */ 424 return GL_FALSE; 425 } 426 427 /* get destination surface (in the compressed texture) */ 428 dst_surface = screen->get_tex_surface(screen, stImage->pt, 429 stImage->face, stImage->level, 0, 430 PIPE_BUFFER_USAGE_GPU_WRITE); 431 if (!dst_surface) { 432 /* can't render into this format (or other problem) */ 433 return GL_FALSE; 434 } 435 436 /* Choose format for the temporary RGBA texture image. 437 */ 438 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); 439 assert(mesa_format); 440 if (!mesa_format) 441 return GL_FALSE; 442 443 /* Create the temporary source texture 444 */ 445 memset(&templ, 0, sizeof(templ)); 446 templ.target = PIPE_TEXTURE_2D; 447 templ.format = st_mesa_format_to_pipe_format(mesa_format->MesaFormat); 448 pf_get_block(templ.format, &templ.block); 449 templ.width[0] = width; 450 templ.height[0] = height; 451 templ.depth[0] = 1; 452 templ.last_level = 0; 453 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 454 src_tex = screen->texture_create(screen, &templ); 455 456 if (!src_tex) 457 return GL_FALSE; 458 459 /* Put user's tex data into the temporary texture 460 */ 461 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex, 462 0, 0, 0, /* face, level are zero */ 463 PIPE_TRANSFER_WRITE, 464 0, 0, width, height); /* x, y, w, h */ 465 map = screen->transfer_map(screen, tex_xfer); 466 467 mesa_format->StoreImage(ctx, 2, GL_RGBA, mesa_format, 468 map, /* dest ptr */ 469 0, 0, 0, /* dest x/y/z offset */ 470 tex_xfer->stride, /* dest row stride (bytes) */ 471 dstImageOffsets, /* image offsets (for 3D only) */ 472 width, height, 1, /* size */ 473 format, type, /* source format/type */ 474 pixels, /* source data */ 475 unpack); /* source data packing */ 476 477 screen->transfer_unmap(screen, tex_xfer); 478 screen->tex_transfer_destroy(tex_xfer); 479 480 /* copy / compress image */ 481 util_blit_pixels_tex(ctx->st->blit, 482 src_tex, /* pipe_texture (src) */ 483 0, 0, /* src x0, y0 */ 484 width, height, /* src x1, y1 */ 485 dst_surface, /* pipe_surface (dst) */ 486 xoffset, yoffset, /* dst x0, y0 */ 487 xoffset + width, /* dst x1 */ 488 yoffset + height, /* dst y1 */ 489 0.0, /* z */ 490 PIPE_TEX_MIPFILTER_NEAREST); 491 492 pipe_surface_reference(&dst_surface, NULL); 493 pipe_texture_reference(&src_tex, NULL); 494 495 return GL_TRUE; 496} 497 498 499/** 500 * Do glTexImage1/2/3D(). 501 */ 502static void 503st_TexImage(GLcontext * ctx, 504 GLint dims, 505 GLenum target, GLint level, 506 GLint internalFormat, 507 GLint width, GLint height, GLint depth, 508 GLint border, 509 GLenum format, GLenum type, const void *pixels, 510 const struct gl_pixelstore_attrib *unpack, 511 struct gl_texture_object *texObj, 512 struct gl_texture_image *texImage, 513 GLsizei imageSize, GLboolean compressed_src) 514{ 515 struct pipe_screen *screen = ctx->st->pipe->screen; 516 struct st_texture_object *stObj = st_texture_object(texObj); 517 struct st_texture_image *stImage = st_texture_image(texImage); 518 GLint postConvWidth, postConvHeight; 519 GLint texelBytes, sizeInBytes; 520 GLuint dstRowStride = 0; 521 struct gl_pixelstore_attrib unpackNB; 522 enum pipe_transfer_usage transfer_usage = 0; 523 524 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 525 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 526 527 /* switch to "normal" */ 528 if (stObj->surface_based) { 529 _mesa_clear_texture_object(ctx, texObj); 530 stObj->surface_based = GL_FALSE; 531 } 532 533 /* gallium does not support texture borders, strip it off */ 534 if (border) { 535 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 536 unpack = &unpackNB; 537 texImage->Width = width; 538 texImage->Height = height; 539 texImage->Depth = depth; 540 texImage->Border = 0; 541 border = 0; 542 } 543 544 postConvWidth = width; 545 postConvHeight = height; 546 547 stImage->face = _mesa_tex_target_to_face(target); 548 stImage->level = level; 549 550#if FEATURE_convolve 551 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 552 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 553 &postConvHeight); 554 } 555#endif 556 557 /* choose the texture format */ 558 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 559 format, type); 560 561 _mesa_set_fetch_functions(texImage, dims); 562 563 if (texImage->TexFormat->TexelBytes == 0) { 564 /* must be a compressed format */ 565 texelBytes = 0; 566 texImage->IsCompressed = GL_TRUE; 567 texImage->CompressedSize = 568 ctx->Driver.CompressedTextureSize(ctx, texImage->Width, 569 texImage->Height, texImage->Depth, 570 texImage->TexFormat->MesaFormat); 571 } 572 else { 573 texelBytes = texImage->TexFormat->TexelBytes; 574 575 /* Minimum pitch of 32 bytes */ 576 if (postConvWidth * texelBytes < 32) { 577 postConvWidth = 32 / texelBytes; 578 texImage->RowStride = postConvWidth; 579 } 580 581 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 582 /*assert(texImage->RowStride == postConvWidth);*/ 583 } 584 585 /* Release the reference to a potentially orphaned buffer. 586 * Release any old malloced memory. 587 */ 588 if (stImage->pt) { 589 pipe_texture_reference(&stImage->pt, NULL); 590 assert(!texImage->Data); 591 } 592 else if (texImage->Data) { 593 _mesa_align_free(texImage->Data); 594 } 595 596 if (width == 0 || height == 0 || depth == 0) { 597 /* stop after freeing old image */ 598 return; 599 } 600 601 /* If this is the only mipmap level in the texture, could call 602 * bmBufferData with NULL data to free the old block and avoid 603 * waiting on any outstanding fences. 604 */ 605 if (stObj->pt) { 606 if (stObj->teximage_realloc || 607 level > (GLint) stObj->pt->last_level || 608 (stObj->pt->last_level == level && 609 stObj->pt->target != PIPE_TEXTURE_CUBE && 610 !st_texture_match_image(stObj->pt, &stImage->base, 611 stImage->face, stImage->level))) { 612 DBG("release it\n"); 613 pipe_texture_reference(&stObj->pt, NULL); 614 assert(!stObj->pt); 615 stObj->teximage_realloc = FALSE; 616 } 617 } 618 619 if (!stObj->pt) { 620 guess_and_alloc_texture(ctx->st, stObj, stImage); 621 if (!stObj->pt) { 622 /* Probably out of memory. 623 * Try flushing any pending rendering, then retry. 624 */ 625 st_finish(ctx->st); 626 guess_and_alloc_texture(ctx->st, stObj, stImage); 627 if (!stObj->pt) { 628 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 629 return; 630 } 631 } 632 } 633 634 assert(!stImage->pt); 635 636 if (stObj->pt && 637 st_texture_match_image(stObj->pt, &stImage->base, 638 stImage->face, stImage->level)) { 639 640 pipe_texture_reference(&stImage->pt, stObj->pt); 641 assert(stImage->pt); 642 } 643 644 if (!stImage->pt) 645 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 646 647 /* st_CopyTexImage calls this function with pixels == NULL, with 648 * the expectation that the texture will be set up but nothing 649 * more will be done. This is where those calls return: 650 */ 651 if (compressed_src) { 652 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 653 unpack, 654 "glCompressedTexImage"); 655 } 656 else { 657 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 658 format, type, 659 pixels, unpack, "glTexImage"); 660 } 661 662 /* Note: we can't check for pixels==NULL until after we've allocated 663 * memory for the texture. 664 */ 665 666 /* See if we can do texture compression with a blit/render. 667 */ 668 if (!compressed_src && 669 !ctx->Mesa_DXTn && 670 is_compressed_mesa_format(texImage->TexFormat) && 671 screen->is_format_supported(screen, 672 stImage->pt->format, 673 stImage->pt->target, 674 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 675 if (!pixels) 676 goto done; 677 678 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 679 format, type, pixels, unpack, texImage)) { 680 goto done; 681 } 682 } 683 684 if (stImage->pt) { 685 if (format == GL_DEPTH_COMPONENT && 686 pf_is_depth_and_stencil(stImage->pt->format)) 687 transfer_usage = PIPE_TRANSFER_READ_WRITE; 688 else 689 transfer_usage = PIPE_TRANSFER_WRITE; 690 691 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 692 transfer_usage, 0, 0, 693 stImage->base.Width, 694 stImage->base.Height); 695 if(stImage->transfer) 696 dstRowStride = stImage->transfer->stride; 697 } 698 else { 699 /* Allocate regular memory and store the image there temporarily. */ 700 if (texImage->IsCompressed) { 701 sizeInBytes = texImage->CompressedSize; 702 dstRowStride = 703 _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width); 704 assert(dims != 3); 705 } 706 else { 707 dstRowStride = postConvWidth * texelBytes; 708 sizeInBytes = depth * dstRowStride * postConvHeight; 709 } 710 711 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 712 } 713 714 if (!texImage->Data) { 715 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 716 return; 717 } 718 719 if (!pixels) 720 goto done; 721 722 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 723 width, height, depth, width * texelBytes, dstRowStride); 724 725 /* Copy data. Would like to know when it's ok for us to eg. use 726 * the blitter to copy. Or, use the hardware to do the format 727 * conversion and copy: 728 */ 729 if (compressed_src) { 730 memcpy(texImage->Data, pixels, imageSize); 731 } 732 else { 733 const GLuint srcImageStride = 734 _mesa_image_image_stride(unpack, width, height, format, type); 735 GLint i; 736 const GLubyte *src = (const GLubyte *) pixels; 737 738 for (i = 0; i < depth; i++) { 739 if (!texImage->TexFormat->StoreImage(ctx, dims, 740 texImage->_BaseFormat, 741 texImage->TexFormat, 742 texImage->Data, 743 0, 0, 0, /* dstX/Y/Zoffset */ 744 dstRowStride, 745 texImage->ImageOffsets, 746 width, height, 1, 747 format, type, src, unpack)) { 748 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 749 } 750 751 if (stImage->pt && i + 1 < depth) { 752 /* unmap this slice */ 753 st_texture_image_unmap(ctx->st, stImage); 754 /* map next slice of 3D texture */ 755 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 756 transfer_usage, 0, 0, 757 stImage->base.Width, 758 stImage->base.Height); 759 src += srcImageStride; 760 } 761 } 762 } 763 764done: 765 _mesa_unmap_teximage_pbo(ctx, unpack); 766 767 if (stImage->pt && texImage->Data) { 768 st_texture_image_unmap(ctx->st, stImage); 769 texImage->Data = NULL; 770 } 771} 772 773 774static void 775st_TexImage3D(GLcontext * ctx, 776 GLenum target, GLint level, 777 GLint internalFormat, 778 GLint width, GLint height, GLint depth, 779 GLint border, 780 GLenum format, GLenum type, const void *pixels, 781 const struct gl_pixelstore_attrib *unpack, 782 struct gl_texture_object *texObj, 783 struct gl_texture_image *texImage) 784{ 785 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 786 border, format, type, pixels, unpack, texObj, texImage, 787 0, GL_FALSE); 788} 789 790 791static void 792st_TexImage2D(GLcontext * ctx, 793 GLenum target, GLint level, 794 GLint internalFormat, 795 GLint width, GLint height, GLint border, 796 GLenum format, GLenum type, const void *pixels, 797 const struct gl_pixelstore_attrib *unpack, 798 struct gl_texture_object *texObj, 799 struct gl_texture_image *texImage) 800{ 801 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 802 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 803} 804 805 806static void 807st_TexImage1D(GLcontext * ctx, 808 GLenum target, GLint level, 809 GLint internalFormat, 810 GLint width, GLint border, 811 GLenum format, GLenum type, const void *pixels, 812 const struct gl_pixelstore_attrib *unpack, 813 struct gl_texture_object *texObj, 814 struct gl_texture_image *texImage) 815{ 816 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 817 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 818} 819 820 821static void 822st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 823 GLint internalFormat, 824 GLint width, GLint height, GLint border, 825 GLsizei imageSize, const GLvoid *data, 826 struct gl_texture_object *texObj, 827 struct gl_texture_image *texImage) 828{ 829 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 830 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 831} 832 833 834 835/** 836 * glGetTexImage() helper: decompress a compressed texture by rendering 837 * a textured quad. Store the results in the user's buffer. 838 */ 839static void 840decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 841 GLenum format, GLenum type, GLvoid *pixels, 842 struct gl_texture_object *texObj, 843 struct gl_texture_image *texImage) 844{ 845 struct pipe_screen *screen = ctx->st->pipe->screen; 846 struct st_texture_image *stImage = st_texture_image(texImage); 847 const GLuint width = texImage->Width; 848 const GLuint height = texImage->Height; 849 struct pipe_surface *dst_surface; 850 struct pipe_texture *dst_texture; 851 struct pipe_transfer *tex_xfer; 852 853 /* create temp / dest surface */ 854 if (!util_create_rgba_surface(screen, width, height, 855 &dst_texture, &dst_surface)) { 856 _mesa_problem(ctx, "util_create_rgba_surface() failed " 857 "in decompress_with_blit()"); 858 return; 859 } 860 861 /* blit/render/decompress */ 862 util_blit_pixels_tex(ctx->st->blit, 863 stImage->pt, /* pipe_texture (src) */ 864 0, 0, /* src x0, y0 */ 865 width, height, /* src x1, y1 */ 866 dst_surface, /* pipe_surface (dst) */ 867 0, 0, /* dst x0, y0 */ 868 width, height, /* dst x1, y1 */ 869 0.0, /* z */ 870 PIPE_TEX_MIPFILTER_NEAREST); 871 872 /* map the dst_surface so we can read from it */ 873 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 874 dst_texture, 0, 0, 0, 875 PIPE_TRANSFER_READ, 876 0, 0, width, height); 877 878 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 879 880 /* copy/pack data into user buffer */ 881 if (st_equal_formats(stImage->pt->format, format, type)) { 882 /* memcpy */ 883 const uint bytesPerRow = width * pf_get_size(stImage->pt->format); 884 ubyte *map = screen->transfer_map(screen, tex_xfer); 885 GLuint row; 886 for (row = 0; row < height; row++) { 887 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 888 height, format, type, row, 0); 889 memcpy(dest, map, bytesPerRow); 890 map += tex_xfer->stride; 891 } 892 screen->transfer_unmap(screen, tex_xfer); 893 } 894 else { 895 /* format translation via floats */ 896 GLuint row; 897 for (row = 0; row < height; row++) { 898 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 899 GLfloat rgba[4 * MAX_WIDTH]; 900 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 901 height, format, type, row, 0); 902 903 /* get float[4] rgba row from surface */ 904 pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba); 905 906 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 907 type, dest, &ctx->Pack, transferOps); 908 } 909 } 910 911 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 912 913 /* destroy the temp / dest surface */ 914 util_destroy_rgba_surface(dst_texture, dst_surface); 915} 916 917 918 919/** 920 * Need to map texture image into memory before copying image data, 921 * then unmap it. 922 */ 923static void 924st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 925 GLenum format, GLenum type, GLvoid * pixels, 926 struct gl_texture_object *texObj, 927 struct gl_texture_image *texImage, GLboolean compressed_dst) 928{ 929 struct st_texture_image *stImage = st_texture_image(texImage); 930 const GLuint dstImageStride = 931 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 932 format, type); 933 GLuint depth, i; 934 GLubyte *dest; 935 936 if (stImage->pt && 937 pf_is_compressed(stImage->pt->format) && 938 !compressed_dst) { 939 /* Need to decompress the texture. 940 * We'll do this by rendering a textured quad. 941 * Note that we only expect RGBA formats (no Z/depth formats). 942 */ 943 decompress_with_blit(ctx, target, level, format, type, pixels, 944 texObj, texImage); 945 return; 946 } 947 948 /* Map */ 949 if (stImage->pt) { 950 /* Image is stored in hardware format in a buffer managed by the 951 * kernel. Need to explicitly map and unmap it. 952 */ 953 unsigned face = _mesa_tex_target_to_face(target); 954 955 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 956 PIPE_TRANSFER_READ); 957 958 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 959 PIPE_TRANSFER_READ, 0, 0, 960 stImage->base.Width, 961 stImage->base.Height); 962 texImage->RowStride = stImage->transfer->stride / stImage->pt->block.size; 963 } 964 else { 965 /* Otherwise, the image should actually be stored in 966 * texImage->Data. This is pretty confusing for 967 * everybody, I'd much prefer to separate the two functions of 968 * texImage->Data - storage for texture images in main memory 969 * and access (ie mappings) of images. In other words, we'd 970 * create a new texImage->Map field and leave Data simply for 971 * storage. 972 */ 973 assert(texImage->Data); 974 } 975 976 depth = texImage->Depth; 977 texImage->Depth = 1; 978 979 dest = (GLubyte *) pixels; 980 981 for (i = 0; i < depth; i++) { 982 if (compressed_dst) { 983 _mesa_get_compressed_teximage(ctx, target, level, dest, 984 texObj, texImage); 985 } 986 else { 987 _mesa_get_teximage(ctx, target, level, format, type, dest, 988 texObj, texImage); 989 } 990 991 if (stImage->pt && i + 1 < depth) { 992 /* unmap this slice */ 993 st_texture_image_unmap(ctx->st, stImage); 994 /* map next slice of 3D texture */ 995 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 996 PIPE_TRANSFER_READ, 0, 0, 997 stImage->base.Width, 998 stImage->base.Height); 999 dest += dstImageStride; 1000 } 1001 } 1002 1003 texImage->Depth = depth; 1004 1005 /* Unmap */ 1006 if (stImage->pt) { 1007 st_texture_image_unmap(ctx->st, stImage); 1008 texImage->Data = NULL; 1009 } 1010} 1011 1012 1013static void 1014st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 1015 GLenum format, GLenum type, GLvoid * pixels, 1016 struct gl_texture_object *texObj, 1017 struct gl_texture_image *texImage) 1018{ 1019 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 1020 GL_FALSE); 1021} 1022 1023 1024static void 1025st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 1026 GLvoid *pixels, 1027 struct gl_texture_object *texObj, 1028 struct gl_texture_image *texImage) 1029{ 1030 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1031 GL_TRUE); 1032} 1033 1034 1035 1036static void 1037st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1038 GLint xoffset, GLint yoffset, GLint zoffset, 1039 GLint width, GLint height, GLint depth, 1040 GLenum format, GLenum type, const void *pixels, 1041 const struct gl_pixelstore_attrib *packing, 1042 struct gl_texture_object *texObj, 1043 struct gl_texture_image *texImage) 1044{ 1045 struct pipe_screen *screen = ctx->st->pipe->screen; 1046 struct st_texture_image *stImage = st_texture_image(texImage); 1047 GLuint dstRowStride; 1048 const GLuint srcImageStride = 1049 _mesa_image_image_stride(packing, width, height, format, type); 1050 GLint i; 1051 const GLubyte *src; 1052 /* init to silence warning only: */ 1053 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1054 1055 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1056 _mesa_lookup_enum_by_nr(target), 1057 level, xoffset, yoffset, width, height); 1058 1059 pixels = 1060 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1061 type, pixels, packing, "glTexSubImage2D"); 1062 if (!pixels) 1063 return; 1064 1065 /* See if we can do texture compression with a blit/render. 1066 */ 1067 if (!ctx->Mesa_DXTn && 1068 is_compressed_mesa_format(texImage->TexFormat) && 1069 screen->is_format_supported(screen, 1070 stImage->pt->format, 1071 stImage->pt->target, 1072 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1073 if (compress_with_blit(ctx, target, level, 1074 xoffset, yoffset, zoffset, 1075 width, height, depth, 1076 format, type, pixels, packing, texImage)) { 1077 goto done; 1078 } 1079 } 1080 1081 /* Map buffer if necessary. Need to lock to prevent other contexts 1082 * from uploading the buffer under us. 1083 */ 1084 if (stImage->pt) { 1085 unsigned face = _mesa_tex_target_to_face(target); 1086 1087 if (format == GL_DEPTH_COMPONENT && 1088 pf_is_depth_and_stencil(stImage->pt->format)) 1089 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1090 else 1091 transfer_usage = PIPE_TRANSFER_WRITE; 1092 1093 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1094 transfer_usage); 1095 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1096 transfer_usage, 1097 xoffset, yoffset, 1098 width, height); 1099 } 1100 1101 if (!texImage->Data) { 1102 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1103 goto done; 1104 } 1105 1106 src = (const GLubyte *) pixels; 1107 dstRowStride = stImage->transfer->stride; 1108 1109 for (i = 0; i < depth; i++) { 1110 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 1111 texImage->TexFormat, 1112 texImage->Data, 1113 0, 0, 0, 1114 dstRowStride, 1115 texImage->ImageOffsets, 1116 width, height, 1, 1117 format, type, src, packing)) { 1118 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1119 } 1120 1121 if (stImage->pt && i + 1 < depth) { 1122 /* unmap this slice */ 1123 st_texture_image_unmap(ctx->st, stImage); 1124 /* map next slice of 3D texture */ 1125 texImage->Data = st_texture_image_map(ctx->st, stImage, 1126 zoffset + i + 1, 1127 transfer_usage, 1128 xoffset, yoffset, 1129 width, height); 1130 src += srcImageStride; 1131 } 1132 } 1133 1134done: 1135 _mesa_unmap_teximage_pbo(ctx, packing); 1136 1137 if (stImage->pt) { 1138 st_texture_image_unmap(ctx->st, stImage); 1139 texImage->Data = NULL; 1140 } 1141} 1142 1143 1144 1145static void 1146st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1147 GLint xoffset, GLint yoffset, GLint zoffset, 1148 GLsizei width, GLsizei height, GLsizei depth, 1149 GLenum format, GLenum type, const GLvoid *pixels, 1150 const struct gl_pixelstore_attrib *packing, 1151 struct gl_texture_object *texObj, 1152 struct gl_texture_image *texImage) 1153{ 1154 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1155 width, height, depth, format, type, 1156 pixels, packing, texObj, texImage); 1157} 1158 1159 1160static void 1161st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1162 GLint xoffset, GLint yoffset, 1163 GLsizei width, GLsizei height, 1164 GLenum format, GLenum type, const GLvoid * pixels, 1165 const struct gl_pixelstore_attrib *packing, 1166 struct gl_texture_object *texObj, 1167 struct gl_texture_image *texImage) 1168{ 1169 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1170 width, height, 1, format, type, 1171 pixels, packing, texObj, texImage); 1172} 1173 1174 1175static void 1176st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1177 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1178 const GLvoid * pixels, 1179 const struct gl_pixelstore_attrib *packing, 1180 struct gl_texture_object *texObj, 1181 struct gl_texture_image *texImage) 1182{ 1183 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1184 format, type, pixels, packing, texObj, texImage); 1185} 1186 1187 1188static void 1189st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1190 GLint xoffset, GLsizei width, 1191 GLenum format, 1192 GLsizei imageSize, const GLvoid *data, 1193 struct gl_texture_object *texObj, 1194 struct gl_texture_image *texImage) 1195{ 1196 assert(0); 1197} 1198 1199 1200static void 1201st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1202 GLint xoffset, GLint yoffset, 1203 GLsizei width, GLint height, 1204 GLenum format, 1205 GLsizei imageSize, const GLvoid *data, 1206 struct gl_texture_object *texObj, 1207 struct gl_texture_image *texImage) 1208{ 1209 struct st_texture_image *stImage = st_texture_image(texImage); 1210 struct pipe_format_block block; 1211 int srcBlockStride; 1212 int dstBlockStride; 1213 int y; 1214 1215 if (stImage->pt) { 1216 unsigned face = _mesa_tex_target_to_face(target); 1217 1218 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1219 PIPE_TRANSFER_WRITE); 1220 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1221 PIPE_TRANSFER_WRITE, 1222 xoffset, yoffset, 1223 width, height); 1224 1225 block = stImage->pt->block; 1226 srcBlockStride = pf_get_stride(&block, width); 1227 dstBlockStride = stImage->transfer->stride; 1228 } else { 1229 assert(stImage->pt); 1230 /* TODO find good values for block and strides */ 1231 /* TODO also adjust texImage->data for yoffset/xoffset */ 1232 return; 1233 } 1234 1235 if (!texImage->Data) { 1236 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1237 return; 1238 } 1239 1240 assert(xoffset % block.width == 0); 1241 assert(yoffset % block.height == 0); 1242 assert(width % block.width == 0); 1243 assert(height % block.height == 0); 1244 1245 for (y = 0; y < height; y += block.height) { 1246 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1247 const char *src = (const char*)data + srcBlockStride * pf_get_nblocksy(&block, y); 1248 char *dst = (char*)texImage->Data + dstBlockStride * pf_get_nblocksy(&block, y); 1249 memcpy(dst, src, pf_get_stride(&block, width)); 1250 } 1251 1252 if (stImage->pt) { 1253 st_texture_image_unmap(ctx->st, stImage); 1254 texImage->Data = NULL; 1255 } 1256} 1257 1258 1259static void 1260st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1261 GLint xoffset, GLint yoffset, GLint zoffset, 1262 GLsizei width, GLint height, GLint depth, 1263 GLenum format, 1264 GLsizei imageSize, const GLvoid *data, 1265 struct gl_texture_object *texObj, 1266 struct gl_texture_image *texImage) 1267{ 1268 assert(0); 1269} 1270 1271 1272 1273/** 1274 * Do a CopyTexSubImage operation using a read transfer from the source, 1275 * a write transfer to the destination and get_tile()/put_tile() to access 1276 * the pixels/texels. 1277 * 1278 * Note: srcY=0=TOP of renderbuffer 1279 */ 1280static void 1281fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1282 struct st_renderbuffer *strb, 1283 struct st_texture_image *stImage, 1284 GLenum baseFormat, 1285 GLint destX, GLint destY, GLint destZ, 1286 GLint srcX, GLint srcY, 1287 GLsizei width, GLsizei height) 1288{ 1289 struct pipe_context *pipe = ctx->st->pipe; 1290 struct pipe_screen *screen = pipe->screen; 1291 struct pipe_transfer *src_trans; 1292 GLvoid *texDest; 1293 enum pipe_transfer_usage transfer_usage; 1294 1295 assert(width <= MAX_WIDTH); 1296 1297 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1298 srcY = strb->Base.Height - srcY - height; 1299 } 1300 1301 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1302 strb->texture, 1303 0, 0, 0, 1304 PIPE_TRANSFER_READ, 1305 srcX, srcY, 1306 width, height); 1307 1308 if (baseFormat == GL_DEPTH_COMPONENT && 1309 pf_is_depth_and_stencil(stImage->pt->format)) 1310 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1311 else 1312 transfer_usage = PIPE_TRANSFER_WRITE; 1313 1314 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1315 transfer_usage); 1316 1317 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1318 destX, destY, width, height); 1319 1320 if (baseFormat == GL_DEPTH_COMPONENT || 1321 baseFormat == GL_DEPTH24_STENCIL8) { 1322 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1323 ctx->Pixel.DepthBias != 0.0F); 1324 GLint row, yStep; 1325 1326 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1327 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1328 srcY = height - 1; 1329 yStep = -1; 1330 } 1331 else { 1332 srcY = 0; 1333 yStep = 1; 1334 } 1335 1336 /* To avoid a large temp memory allocation, do copy row by row */ 1337 for (row = 0; row < height; row++, srcY += yStep) { 1338 uint data[MAX_WIDTH]; 1339 pipe_get_tile_z(src_trans, 0, srcY, width, 1, data); 1340 if (scaleOrBias) { 1341 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1342 } 1343 pipe_put_tile_z(stImage->transfer, 0, row, width, 1, data); 1344 } 1345 } 1346 else { 1347 /* RGBA format */ 1348 GLfloat *tempSrc = 1349 (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); 1350 1351 if (tempSrc && texDest) { 1352 const GLint dims = 2; 1353 const GLint dstRowStride = stImage->transfer->stride; 1354 struct gl_texture_image *texImage = &stImage->base; 1355 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1356 1357 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1358 unpack.Invert = GL_TRUE; 1359 } 1360 1361 /* get float/RGBA image from framebuffer */ 1362 /* XXX this usually involves a lot of int/float conversion. 1363 * try to avoid that someday. 1364 */ 1365 pipe_get_tile_rgba(src_trans, 0, 0, width, height, tempSrc); 1366 1367 /* Store into texture memory. 1368 * Note that this does some special things such as pixel transfer 1369 * ops and format conversion. In particular, if the dest tex format 1370 * is actually RGBA but the user created the texture as GL_RGB we 1371 * need to fill-in/override the alpha channel with 1.0. 1372 */ 1373 texImage->TexFormat->StoreImage(ctx, dims, 1374 texImage->_BaseFormat, 1375 texImage->TexFormat, 1376 texDest, 1377 0, 0, 0, 1378 dstRowStride, 1379 texImage->ImageOffsets, 1380 width, height, 1, 1381 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1382 &unpack); 1383 } 1384 else { 1385 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1386 } 1387 1388 if (tempSrc) 1389 _mesa_free(tempSrc); 1390 } 1391 1392 st_texture_image_unmap(ctx->st, stImage); 1393 screen->tex_transfer_destroy(src_trans); 1394} 1395 1396 1397static unsigned 1398compatible_src_dst_formats(const struct gl_renderbuffer *src, 1399 const struct gl_texture_image *dst) 1400{ 1401 const GLenum srcFormat = src->_BaseFormat; 1402 const GLenum dstLogicalFormat = dst->_BaseFormat; 1403 1404 if (srcFormat == dstLogicalFormat) { 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_RGBA && 1411 dstLogicalFormat == GL_RGB) { 1412 /* Add a single special case to cope with RGBA->RGB transfers, 1413 * setting A to 1.0 to cope with situations where the RGB 1414 * destination is actually stored as RGBA. 1415 */ 1416 return TGSI_WRITEMASK_XYZ; /* A ==> 1.0 */ 1417 } 1418 else { 1419 /* Otherwise fail. 1420 */ 1421 return 0; 1422 } 1423} 1424 1425 1426 1427/** 1428 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1429 * Note that the region to copy has already been clipped so we know we 1430 * won't read from outside the source renderbuffer's bounds. 1431 * 1432 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1433 */ 1434static void 1435st_copy_texsubimage(GLcontext *ctx, 1436 GLenum target, GLint level, 1437 GLint destX, GLint destY, GLint destZ, 1438 GLint srcX, GLint srcY, 1439 GLsizei width, GLsizei height) 1440{ 1441 struct gl_texture_unit *texUnit = 1442 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1443 struct gl_texture_object *texObj = 1444 _mesa_select_tex_object(ctx, texUnit, target); 1445 struct gl_texture_image *texImage = 1446 _mesa_select_tex_image(ctx, texObj, target, level); 1447 struct st_texture_image *stImage = st_texture_image(texImage); 1448 const GLenum texBaseFormat = texImage->InternalFormat; 1449 struct gl_framebuffer *fb = ctx->ReadBuffer; 1450 struct st_renderbuffer *strb; 1451 struct pipe_context *pipe = ctx->st->pipe; 1452 struct pipe_screen *screen = pipe->screen; 1453 enum pipe_format dest_format, src_format; 1454 GLboolean use_fallback = GL_TRUE; 1455 GLboolean matching_base_formats; 1456 GLuint format_writemask; 1457 struct pipe_surface *dest_surface = NULL; 1458 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1459 1460 /* any rendering in progress must flushed before we grab the fb image */ 1461 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1462 1463 /* make sure finalize_textures has been called? 1464 */ 1465 if (0) st_validate_state(ctx->st); 1466 1467 /* determine if copying depth or color data */ 1468 if (texBaseFormat == GL_DEPTH_COMPONENT || 1469 texBaseFormat == GL_DEPTH24_STENCIL8) { 1470 strb = st_renderbuffer(fb->_DepthBuffer); 1471 } 1472 else if (texBaseFormat == GL_DEPTH_STENCIL_EXT) { 1473 strb = st_renderbuffer(fb->_StencilBuffer); 1474 } 1475 else { 1476 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1477 strb = st_renderbuffer(fb->_ColorReadBuffer); 1478 } 1479 1480 if (!strb || !strb->surface || !stImage->pt) { 1481 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1482 return; 1483 } 1484 1485 if (srcX < 0) { 1486 width -= -srcX; 1487 destX += -srcX; 1488 srcX = 0; 1489 } 1490 1491 if (srcY < 0) { 1492 height -= -srcY; 1493 destY += -srcY; 1494 srcY = 0; 1495 } 1496 1497 if (destX < 0) { 1498 width -= -destX; 1499 srcX += -destX; 1500 destX = 0; 1501 } 1502 1503 if (destY < 0) { 1504 height -= -destY; 1505 srcY += -destY; 1506 destY = 0; 1507 } 1508 1509 if (width < 0 || height < 0) 1510 return; 1511 1512 1513 assert(strb); 1514 assert(strb->surface); 1515 assert(stImage->pt); 1516 1517 src_format = strb->surface->format; 1518 dest_format = stImage->pt->format; 1519 1520 /* 1521 * Determine if the src framebuffer and dest texture have the same 1522 * base format. We need this to detect a case such as the framebuffer 1523 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1524 * texture format stores RGBA we need to set A=1 (overriding the 1525 * framebuffer's alpha values). We can't do that with the blit or 1526 * textured-quad paths. 1527 */ 1528 matching_base_formats = (strb->Base._BaseFormat == texImage->_BaseFormat); 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 1696static void 1697copy_image_data_to_texture(struct st_context *st, 1698 struct st_texture_object *stObj, 1699 GLuint dstLevel, 1700 struct st_texture_image *stImage) 1701{ 1702 if (stImage->pt) { 1703 /* Copy potentially with the blitter: 1704 */ 1705 st_texture_image_copy(st->pipe, 1706 stObj->pt, dstLevel, /* dest texture, level */ 1707 stImage->pt, /* src texture */ 1708 stImage->face 1709 ); 1710 1711 pipe_texture_reference(&stImage->pt, NULL); 1712 } 1713 else if (stImage->base.Data) { 1714 assert(stImage->base.Data != NULL); 1715 1716 /* More straightforward upload. 1717 */ 1718 1719 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1720 PIPE_TRANSFER_WRITE); 1721 1722 1723 st_texture_image_data(st, 1724 stObj->pt, 1725 stImage->face, 1726 dstLevel, 1727 stImage->base.Data, 1728 stImage->base.RowStride * 1729 stObj->pt->block.size, 1730 stImage->base.RowStride * 1731 stImage->base.Height * 1732 stObj->pt->block.size); 1733 _mesa_align_free(stImage->base.Data); 1734 stImage->base.Data = NULL; 1735 } 1736 1737 pipe_texture_reference(&stImage->pt, stObj->pt); 1738} 1739 1740 1741/** 1742 * Called during state validation. When this function is finished, 1743 * the texture object should be ready for rendering. 1744 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1745 */ 1746GLboolean 1747st_finalize_texture(GLcontext *ctx, 1748 struct pipe_context *pipe, 1749 struct gl_texture_object *tObj, 1750 GLboolean *needFlush) 1751{ 1752 struct st_texture_object *stObj = st_texture_object(tObj); 1753 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1754 GLuint cpp, face; 1755 struct st_texture_image *firstImage; 1756 1757 *needFlush = GL_FALSE; 1758 1759 if (stObj->base._Complete) { 1760 /* The texture is complete and we know exactly how many mipmap levels 1761 * are present/needed. This is conditional because we may be called 1762 * from the st_generate_mipmap() function when the texture object is 1763 * incomplete. In that case, we'll have set stObj->lastLevel before 1764 * we get here. 1765 */ 1766 stObj->lastLevel = stObj->base._MaxLevel - stObj->base.BaseLevel; 1767 } 1768 1769 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1770 1771 /* If both firstImage and stObj point to a texture which can contain 1772 * all active images, favour firstImage. Note that because of the 1773 * completeness requirement, we know that the image dimensions 1774 * will match. 1775 */ 1776 if (firstImage->pt && 1777 firstImage->pt != stObj->pt && 1778 firstImage->pt->last_level >= stObj->lastLevel) { 1779 pipe_texture_reference(&stObj->pt, firstImage->pt); 1780 } 1781 1782 /* FIXME: determine format block instead of cpp */ 1783 if (firstImage->base.IsCompressed) { 1784 cpp = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1785 } 1786 else { 1787 cpp = firstImage->base.TexFormat->TexelBytes; 1788 } 1789 1790 /* If we already have a gallium texture, check that it matches the texture 1791 * object's format, target, size, num_levels, etc. 1792 */ 1793 if (stObj->pt) { 1794 const enum pipe_format fmt = 1795 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1796 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1797 stObj->pt->format != fmt || 1798 stObj->pt->last_level < stObj->lastLevel || 1799 stObj->pt->width[0] != firstImage->base.Width2 || 1800 stObj->pt->height[0] != firstImage->base.Height2 || 1801 stObj->pt->depth[0] != firstImage->base.Depth2 || 1802 /* Nominal bytes per pixel: */ 1803 stObj->pt->block.size / stObj->pt->block.width != cpp) 1804 { 1805 pipe_texture_reference(&stObj->pt, NULL); 1806 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1807 } 1808 } 1809 1810 /* May need to create a new gallium texture: 1811 */ 1812 if (!stObj->pt) { 1813 const enum pipe_format fmt = 1814 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1815 GLuint usage = default_usage(fmt); 1816 1817 stObj->pt = st_texture_create(ctx->st, 1818 gl_target_to_pipe(stObj->base.Target), 1819 fmt, 1820 stObj->lastLevel, 1821 firstImage->base.Width2, 1822 firstImage->base.Height2, 1823 firstImage->base.Depth2, 1824 usage); 1825 1826 if (!stObj->pt) { 1827 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1828 return GL_FALSE; 1829 } 1830 } 1831 1832 /* Pull in any images not in the object's texture: 1833 */ 1834 for (face = 0; face < nr_faces; face++) { 1835 GLuint level; 1836 for (level = 0; level <= stObj->lastLevel; level++) { 1837 struct st_texture_image *stImage = 1838 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1839 1840 /* Need to import images in main memory or held in other textures. 1841 */ 1842 if (stImage && stObj->pt != stImage->pt) { 1843 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1844 *needFlush = GL_TRUE; 1845 } 1846 } 1847 } 1848 1849 return GL_TRUE; 1850} 1851 1852 1853/** 1854 * Returns pointer to a default/dummy texture. 1855 * This is typically used when the current shader has tex/sample instructions 1856 * but the user has not provided a (any) texture(s). 1857 */ 1858struct gl_texture_object * 1859st_get_default_texture(struct st_context *st) 1860{ 1861 if (!st->default_texture) { 1862 static const GLenum target = GL_TEXTURE_2D; 1863 GLubyte pixels[16][16][4]; 1864 struct gl_texture_object *texObj; 1865 struct gl_texture_image *texImg; 1866 GLuint i, j; 1867 1868 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1869 * when attempting to sample incomplete textures. 1870 */ 1871 for (i = 0; i < 16; i++) { 1872 for (j = 0; j < 16; j++) { 1873 pixels[i][j][0] = 0; 1874 pixels[i][j][1] = 0; 1875 pixels[i][j][2] = 0; 1876 pixels[i][j][3] = 255; 1877 } 1878 } 1879 1880 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1881 1882 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1883 1884 _mesa_init_teximage_fields(st->ctx, target, texImg, 1885 16, 16, 1, 0, /* w, h, d, border */ 1886 GL_RGBA); 1887 1888 st_TexImage(st->ctx, 2, target, 1889 0, GL_RGBA, /* level, intformat */ 1890 16, 16, 1, 0, /* w, h, d, border */ 1891 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1892 &st->ctx->DefaultPacking, 1893 texObj, texImg, 1894 0, 0); 1895 1896 texObj->MinFilter = GL_NEAREST; 1897 texObj->MagFilter = GL_NEAREST; 1898 texObj->_Complete = GL_TRUE; 1899 1900 st->default_texture = texObj; 1901 } 1902 return st->default_texture; 1903} 1904 1905 1906void 1907st_init_texture_functions(struct dd_function_table *functions) 1908{ 1909 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1910 functions->TexImage1D = st_TexImage1D; 1911 functions->TexImage2D = st_TexImage2D; 1912 functions->TexImage3D = st_TexImage3D; 1913 functions->TexSubImage1D = st_TexSubImage1D; 1914 functions->TexSubImage2D = st_TexSubImage2D; 1915 functions->TexSubImage3D = st_TexSubImage3D; 1916 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1917 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1918 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1919 functions->CopyTexImage1D = st_CopyTexImage1D; 1920 functions->CopyTexImage2D = st_CopyTexImage2D; 1921 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1922 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1923 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1924 functions->GenerateMipmap = st_generate_mipmap; 1925 1926 functions->GetTexImage = st_GetTexImage; 1927 1928 /* compressed texture functions */ 1929 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1930 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1931 functions->CompressedTextureSize = _mesa_compressed_texture_size; 1932 1933 functions->NewTextureObject = st_NewTextureObject; 1934 functions->NewTextureImage = st_NewTextureImage; 1935 functions->DeleteTexture = st_DeleteTextureObject; 1936 functions->FreeTexImageData = st_FreeTextureImageData; 1937 functions->UpdateTexturePalette = 0; 1938 1939 functions->TextureMemCpy = do_memcpy; 1940 1941 /* XXX Temporary until we can query pipe's texture sizes */ 1942 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1943} 1944