st_cb_texture.c revision 82c2f7756af19f0a19aeda7ea1f627262e4561c0
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 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 773 ctx->Driver.GenerateMipmap(ctx, target, texObj); 774 } 775} 776 777 778static void 779st_TexImage3D(GLcontext * ctx, 780 GLenum target, GLint level, 781 GLint internalFormat, 782 GLint width, GLint height, GLint depth, 783 GLint border, 784 GLenum format, GLenum type, const void *pixels, 785 const struct gl_pixelstore_attrib *unpack, 786 struct gl_texture_object *texObj, 787 struct gl_texture_image *texImage) 788{ 789 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 790 border, format, type, pixels, unpack, texObj, texImage, 791 0, GL_FALSE); 792} 793 794 795static void 796st_TexImage2D(GLcontext * ctx, 797 GLenum target, GLint level, 798 GLint internalFormat, 799 GLint width, GLint height, GLint border, 800 GLenum format, GLenum type, const void *pixels, 801 const struct gl_pixelstore_attrib *unpack, 802 struct gl_texture_object *texObj, 803 struct gl_texture_image *texImage) 804{ 805 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 806 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 807} 808 809 810static void 811st_TexImage1D(GLcontext * ctx, 812 GLenum target, GLint level, 813 GLint internalFormat, 814 GLint width, GLint border, 815 GLenum format, GLenum type, const void *pixels, 816 const struct gl_pixelstore_attrib *unpack, 817 struct gl_texture_object *texObj, 818 struct gl_texture_image *texImage) 819{ 820 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 821 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 822} 823 824 825static void 826st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 827 GLint internalFormat, 828 GLint width, GLint height, GLint border, 829 GLsizei imageSize, const GLvoid *data, 830 struct gl_texture_object *texObj, 831 struct gl_texture_image *texImage) 832{ 833 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 834 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 835} 836 837 838 839/** 840 * glGetTexImage() helper: decompress a compressed texture by rendering 841 * a textured quad. Store the results in the user's buffer. 842 */ 843static void 844decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 845 GLenum format, GLenum type, GLvoid *pixels, 846 struct gl_texture_object *texObj, 847 struct gl_texture_image *texImage) 848{ 849 struct pipe_screen *screen = ctx->st->pipe->screen; 850 struct st_texture_image *stImage = st_texture_image(texImage); 851 const GLuint width = texImage->Width; 852 const GLuint height = texImage->Height; 853 struct pipe_surface *dst_surface; 854 struct pipe_texture *dst_texture; 855 struct pipe_transfer *tex_xfer; 856 857 /* create temp / dest surface */ 858 if (!util_create_rgba_surface(screen, width, height, 859 &dst_texture, &dst_surface)) { 860 _mesa_problem(ctx, "util_create_rgba_surface() failed " 861 "in decompress_with_blit()"); 862 return; 863 } 864 865 /* blit/render/decompress */ 866 util_blit_pixels_tex(ctx->st->blit, 867 stImage->pt, /* pipe_texture (src) */ 868 0, 0, /* src x0, y0 */ 869 width, height, /* src x1, y1 */ 870 dst_surface, /* pipe_surface (dst) */ 871 0, 0, /* dst x0, y0 */ 872 width, height, /* dst x1, y1 */ 873 0.0, /* z */ 874 PIPE_TEX_MIPFILTER_NEAREST); 875 876 /* map the dst_surface so we can read from it */ 877 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 878 dst_texture, 0, 0, 0, 879 PIPE_TRANSFER_READ, 880 0, 0, width, height); 881 882 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 883 884 /* copy/pack data into user buffer */ 885 if (st_equal_formats(stImage->pt->format, format, type)) { 886 /* memcpy */ 887 const uint bytesPerRow = width * pf_get_size(stImage->pt->format); 888 ubyte *map = screen->transfer_map(screen, tex_xfer); 889 GLuint row; 890 for (row = 0; row < height; row++) { 891 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 892 height, format, type, row, 0); 893 memcpy(dest, map, bytesPerRow); 894 map += tex_xfer->stride; 895 } 896 screen->transfer_unmap(screen, tex_xfer); 897 } 898 else { 899 /* format translation via floats */ 900 GLuint row; 901 for (row = 0; row < height; row++) { 902 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 903 GLfloat rgba[4 * MAX_WIDTH]; 904 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 905 height, format, type, row, 0); 906 907 /* get float[4] rgba row from surface */ 908 pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba); 909 910 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 911 type, dest, &ctx->Pack, transferOps); 912 } 913 } 914 915 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 916 917 /* destroy the temp / dest surface */ 918 util_destroy_rgba_surface(dst_texture, dst_surface); 919} 920 921 922 923/** 924 * Need to map texture image into memory before copying image data, 925 * then unmap it. 926 */ 927static void 928st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 929 GLenum format, GLenum type, GLvoid * pixels, 930 struct gl_texture_object *texObj, 931 struct gl_texture_image *texImage, GLboolean compressed_dst) 932{ 933 struct st_texture_image *stImage = st_texture_image(texImage); 934 const GLuint dstImageStride = 935 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 936 format, type); 937 GLuint depth, i; 938 GLubyte *dest; 939 940 if (stImage->pt && 941 pf_is_compressed(stImage->pt->format) && 942 !compressed_dst) { 943 /* Need to decompress the texture. 944 * We'll do this by rendering a textured quad. 945 * Note that we only expect RGBA formats (no Z/depth formats). 946 */ 947 decompress_with_blit(ctx, target, level, format, type, pixels, 948 texObj, texImage); 949 return; 950 } 951 952 /* Map */ 953 if (stImage->pt) { 954 /* Image is stored in hardware format in a buffer managed by the 955 * kernel. Need to explicitly map and unmap it. 956 */ 957 unsigned face = _mesa_tex_target_to_face(target); 958 959 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 960 PIPE_TRANSFER_READ); 961 962 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 963 PIPE_TRANSFER_READ, 0, 0, 964 stImage->base.Width, 965 stImage->base.Height); 966 texImage->RowStride = stImage->transfer->stride / stImage->pt->block.size; 967 } 968 else { 969 /* Otherwise, the image should actually be stored in 970 * texImage->Data. This is pretty confusing for 971 * everybody, I'd much prefer to separate the two functions of 972 * texImage->Data - storage for texture images in main memory 973 * and access (ie mappings) of images. In other words, we'd 974 * create a new texImage->Map field and leave Data simply for 975 * storage. 976 */ 977 assert(texImage->Data); 978 } 979 980 depth = texImage->Depth; 981 texImage->Depth = 1; 982 983 dest = (GLubyte *) pixels; 984 985 for (i = 0; i < depth; i++) { 986 if (compressed_dst) { 987 _mesa_get_compressed_teximage(ctx, target, level, dest, 988 texObj, texImage); 989 } 990 else { 991 _mesa_get_teximage(ctx, target, level, format, type, dest, 992 texObj, texImage); 993 } 994 995 if (stImage->pt && i + 1 < depth) { 996 /* unmap this slice */ 997 st_texture_image_unmap(ctx->st, stImage); 998 /* map next slice of 3D texture */ 999 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 1000 PIPE_TRANSFER_READ, 0, 0, 1001 stImage->base.Width, 1002 stImage->base.Height); 1003 dest += dstImageStride; 1004 } 1005 } 1006 1007 texImage->Depth = depth; 1008 1009 /* Unmap */ 1010 if (stImage->pt) { 1011 st_texture_image_unmap(ctx->st, stImage); 1012 texImage->Data = NULL; 1013 } 1014} 1015 1016 1017static void 1018st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 1019 GLenum format, GLenum type, GLvoid * pixels, 1020 struct gl_texture_object *texObj, 1021 struct gl_texture_image *texImage) 1022{ 1023 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 1024 GL_FALSE); 1025} 1026 1027 1028static void 1029st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 1030 GLvoid *pixels, 1031 struct gl_texture_object *texObj, 1032 struct gl_texture_image *texImage) 1033{ 1034 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1035 GL_TRUE); 1036} 1037 1038 1039 1040static void 1041st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1042 GLint xoffset, GLint yoffset, GLint zoffset, 1043 GLint width, GLint height, GLint depth, 1044 GLenum format, GLenum type, const void *pixels, 1045 const struct gl_pixelstore_attrib *packing, 1046 struct gl_texture_object *texObj, 1047 struct gl_texture_image *texImage) 1048{ 1049 struct pipe_screen *screen = ctx->st->pipe->screen; 1050 struct st_texture_image *stImage = st_texture_image(texImage); 1051 GLuint dstRowStride; 1052 const GLuint srcImageStride = 1053 _mesa_image_image_stride(packing, width, height, format, type); 1054 GLint i; 1055 const GLubyte *src; 1056 /* init to silence warning only: */ 1057 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1058 1059 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1060 _mesa_lookup_enum_by_nr(target), 1061 level, xoffset, yoffset, width, height); 1062 1063 pixels = 1064 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1065 type, pixels, packing, "glTexSubImage2D"); 1066 if (!pixels) 1067 return; 1068 1069 /* See if we can do texture compression with a blit/render. 1070 */ 1071 if (!ctx->Mesa_DXTn && 1072 is_compressed_mesa_format(texImage->TexFormat) && 1073 screen->is_format_supported(screen, 1074 stImage->pt->format, 1075 stImage->pt->target, 1076 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1077 if (compress_with_blit(ctx, target, level, 1078 xoffset, yoffset, zoffset, 1079 width, height, depth, 1080 format, type, pixels, packing, texImage)) { 1081 goto done; 1082 } 1083 } 1084 1085 /* Map buffer if necessary. Need to lock to prevent other contexts 1086 * from uploading the buffer under us. 1087 */ 1088 if (stImage->pt) { 1089 unsigned face = _mesa_tex_target_to_face(target); 1090 1091 if (format == GL_DEPTH_COMPONENT && 1092 pf_is_depth_and_stencil(stImage->pt->format)) 1093 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1094 else 1095 transfer_usage = PIPE_TRANSFER_WRITE; 1096 1097 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1098 transfer_usage); 1099 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1100 transfer_usage, 1101 xoffset, yoffset, 1102 width, height); 1103 } 1104 1105 if (!texImage->Data) { 1106 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1107 goto done; 1108 } 1109 1110 src = (const GLubyte *) pixels; 1111 dstRowStride = stImage->transfer->stride; 1112 1113 for (i = 0; i < depth; i++) { 1114 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 1115 texImage->TexFormat, 1116 texImage->Data, 1117 0, 0, 0, 1118 dstRowStride, 1119 texImage->ImageOffsets, 1120 width, height, 1, 1121 format, type, src, packing)) { 1122 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1123 } 1124 1125 if (stImage->pt && i + 1 < depth) { 1126 /* unmap this slice */ 1127 st_texture_image_unmap(ctx->st, stImage); 1128 /* map next slice of 3D texture */ 1129 texImage->Data = st_texture_image_map(ctx->st, stImage, 1130 zoffset + i + 1, 1131 transfer_usage, 1132 xoffset, yoffset, 1133 width, height); 1134 src += srcImageStride; 1135 } 1136 } 1137 1138done: 1139 _mesa_unmap_teximage_pbo(ctx, packing); 1140 1141 if (stImage->pt) { 1142 st_texture_image_unmap(ctx->st, stImage); 1143 texImage->Data = NULL; 1144 } 1145 1146 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1147 ctx->Driver.GenerateMipmap(ctx, target, texObj); 1148 } 1149} 1150 1151 1152 1153static void 1154st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1155 GLint xoffset, GLint yoffset, GLint zoffset, 1156 GLsizei width, GLsizei height, GLsizei depth, 1157 GLenum format, GLenum type, const GLvoid *pixels, 1158 const struct gl_pixelstore_attrib *packing, 1159 struct gl_texture_object *texObj, 1160 struct gl_texture_image *texImage) 1161{ 1162 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1163 width, height, depth, format, type, 1164 pixels, packing, texObj, texImage); 1165} 1166 1167 1168static void 1169st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1170 GLint xoffset, GLint yoffset, 1171 GLsizei width, GLsizei height, 1172 GLenum format, GLenum type, const GLvoid * pixels, 1173 const struct gl_pixelstore_attrib *packing, 1174 struct gl_texture_object *texObj, 1175 struct gl_texture_image *texImage) 1176{ 1177 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1178 width, height, 1, format, type, 1179 pixels, packing, texObj, texImage); 1180} 1181 1182 1183static void 1184st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1185 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1186 const GLvoid * pixels, 1187 const struct gl_pixelstore_attrib *packing, 1188 struct gl_texture_object *texObj, 1189 struct gl_texture_image *texImage) 1190{ 1191 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1192 format, type, pixels, packing, texObj, texImage); 1193} 1194 1195 1196static void 1197st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1198 GLint xoffset, GLsizei width, 1199 GLenum format, 1200 GLsizei imageSize, const GLvoid *data, 1201 struct gl_texture_object *texObj, 1202 struct gl_texture_image *texImage) 1203{ 1204 assert(0); 1205} 1206 1207 1208static void 1209st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1210 GLint xoffset, GLint yoffset, 1211 GLsizei width, GLint height, 1212 GLenum format, 1213 GLsizei imageSize, const GLvoid *data, 1214 struct gl_texture_object *texObj, 1215 struct gl_texture_image *texImage) 1216{ 1217 struct st_texture_image *stImage = st_texture_image(texImage); 1218 struct pipe_format_block block; 1219 int srcBlockStride; 1220 int dstBlockStride; 1221 int y; 1222 1223 if (stImage->pt) { 1224 unsigned face = _mesa_tex_target_to_face(target); 1225 1226 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1227 PIPE_TRANSFER_WRITE); 1228 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1229 PIPE_TRANSFER_WRITE, 1230 xoffset, yoffset, 1231 width, height); 1232 1233 block = stImage->pt->block; 1234 srcBlockStride = pf_get_stride(&block, width); 1235 dstBlockStride = stImage->transfer->stride; 1236 } else { 1237 assert(stImage->pt); 1238 /* TODO find good values for block and strides */ 1239 /* TODO also adjust texImage->data for yoffset/xoffset */ 1240 return; 1241 } 1242 1243 if (!texImage->Data) { 1244 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1245 return; 1246 } 1247 1248 assert(xoffset % block.width == 0); 1249 assert(yoffset % block.height == 0); 1250 assert(width % block.width == 0); 1251 assert(height % block.height == 0); 1252 1253 for (y = 0; y < height; y += block.height) { 1254 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1255 const char *src = (const char*)data + srcBlockStride * pf_get_nblocksy(&block, y); 1256 char *dst = (char*)texImage->Data + dstBlockStride * pf_get_nblocksy(&block, y); 1257 memcpy(dst, src, pf_get_stride(&block, width)); 1258 } 1259 1260 if (stImage->pt) { 1261 st_texture_image_unmap(ctx->st, stImage); 1262 texImage->Data = NULL; 1263 } 1264} 1265 1266 1267static void 1268st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1269 GLint xoffset, GLint yoffset, GLint zoffset, 1270 GLsizei width, GLint height, GLint depth, 1271 GLenum format, 1272 GLsizei imageSize, const GLvoid *data, 1273 struct gl_texture_object *texObj, 1274 struct gl_texture_image *texImage) 1275{ 1276 assert(0); 1277} 1278 1279 1280 1281/** 1282 * Do a CopyTexSubImage operation using a read transfer from the source, 1283 * a write transfer to the destination and get_tile()/put_tile() to access 1284 * the pixels/texels. 1285 * 1286 * Note: srcY=0=TOP of renderbuffer 1287 */ 1288static void 1289fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1290 struct st_renderbuffer *strb, 1291 struct st_texture_image *stImage, 1292 GLenum baseFormat, 1293 GLint destX, GLint destY, GLint destZ, 1294 GLint srcX, GLint srcY, 1295 GLsizei width, GLsizei height) 1296{ 1297 struct pipe_context *pipe = ctx->st->pipe; 1298 struct pipe_screen *screen = pipe->screen; 1299 struct pipe_transfer *src_trans; 1300 GLvoid *texDest; 1301 enum pipe_transfer_usage transfer_usage; 1302 1303 assert(width <= MAX_WIDTH); 1304 1305 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1306 srcY = strb->Base.Height - srcY - height; 1307 } 1308 1309 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1310 strb->texture, 1311 0, 0, 0, 1312 PIPE_TRANSFER_READ, 1313 srcX, srcY, 1314 width, height); 1315 1316 if (baseFormat == GL_DEPTH_COMPONENT && 1317 pf_is_depth_and_stencil(stImage->pt->format)) 1318 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1319 else 1320 transfer_usage = PIPE_TRANSFER_WRITE; 1321 1322 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1323 transfer_usage); 1324 1325 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1326 destX, destY, width, height); 1327 1328 if (baseFormat == GL_DEPTH_COMPONENT || 1329 baseFormat == GL_DEPTH24_STENCIL8) { 1330 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1331 ctx->Pixel.DepthBias != 0.0F); 1332 GLint row, yStep; 1333 1334 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1335 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1336 srcY = height - 1; 1337 yStep = -1; 1338 } 1339 else { 1340 srcY = 0; 1341 yStep = 1; 1342 } 1343 1344 /* To avoid a large temp memory allocation, do copy row by row */ 1345 for (row = 0; row < height; row++, srcY += yStep) { 1346 uint data[MAX_WIDTH]; 1347 pipe_get_tile_z(src_trans, 0, srcY, width, 1, data); 1348 if (scaleOrBias) { 1349 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1350 } 1351 pipe_put_tile_z(stImage->transfer, 0, row, width, 1, data); 1352 } 1353 } 1354 else { 1355 /* RGBA format */ 1356 GLfloat *tempSrc = 1357 (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); 1358 1359 if (tempSrc && texDest) { 1360 const GLint dims = 2; 1361 const GLint dstRowStride = stImage->transfer->stride; 1362 struct gl_texture_image *texImage = &stImage->base; 1363 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1364 1365 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1366 unpack.Invert = GL_TRUE; 1367 } 1368 1369 /* get float/RGBA image from framebuffer */ 1370 /* XXX this usually involves a lot of int/float conversion. 1371 * try to avoid that someday. 1372 */ 1373 pipe_get_tile_rgba(src_trans, 0, 0, width, height, tempSrc); 1374 1375 /* Store into texture memory. 1376 * Note that this does some special things such as pixel transfer 1377 * ops and format conversion. In particular, if the dest tex format 1378 * is actually RGBA but the user created the texture as GL_RGB we 1379 * need to fill-in/override the alpha channel with 1.0. 1380 */ 1381 texImage->TexFormat->StoreImage(ctx, dims, 1382 texImage->_BaseFormat, 1383 texImage->TexFormat, 1384 texDest, 1385 0, 0, 0, 1386 dstRowStride, 1387 texImage->ImageOffsets, 1388 width, height, 1, 1389 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1390 &unpack); 1391 } 1392 else { 1393 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1394 } 1395 1396 if (tempSrc) 1397 _mesa_free(tempSrc); 1398 } 1399 1400 st_texture_image_unmap(ctx->st, stImage); 1401 screen->tex_transfer_destroy(src_trans); 1402} 1403 1404 1405static unsigned 1406compatible_src_dst_formats(const struct gl_renderbuffer *src, 1407 const struct gl_texture_image *dst) 1408{ 1409 const GLenum srcFormat = src->_BaseFormat; 1410 const GLenum dstLogicalFormat = dst->_BaseFormat; 1411 1412 if (srcFormat == dstLogicalFormat) { 1413 /* This is the same as matching_base_formats, which should 1414 * always pass, as it did previously. 1415 */ 1416 return TGSI_WRITEMASK_XYZW; 1417 } 1418 else if (srcFormat == GL_RGBA && 1419 dstLogicalFormat == GL_RGB) { 1420 /* Add a single special case to cope with RGBA->RGB transfers, 1421 * setting A to 1.0 to cope with situations where the RGB 1422 * destination is actually stored as RGBA. 1423 */ 1424 return TGSI_WRITEMASK_XYZ; /* A ==> 1.0 */ 1425 } 1426 else { 1427 /* Otherwise fail. 1428 */ 1429 return 0; 1430 } 1431} 1432 1433 1434 1435/** 1436 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1437 * Note that the region to copy has already been clipped so we know we 1438 * won't read from outside the source renderbuffer's bounds. 1439 * 1440 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1441 */ 1442static void 1443st_copy_texsubimage(GLcontext *ctx, 1444 GLenum target, GLint level, 1445 GLint destX, GLint destY, GLint destZ, 1446 GLint srcX, GLint srcY, 1447 GLsizei width, GLsizei height) 1448{ 1449 struct gl_texture_unit *texUnit = 1450 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1451 struct gl_texture_object *texObj = 1452 _mesa_select_tex_object(ctx, texUnit, target); 1453 struct gl_texture_image *texImage = 1454 _mesa_select_tex_image(ctx, texObj, target, level); 1455 struct st_texture_image *stImage = st_texture_image(texImage); 1456 const GLenum texBaseFormat = texImage->InternalFormat; 1457 struct gl_framebuffer *fb = ctx->ReadBuffer; 1458 struct st_renderbuffer *strb; 1459 struct pipe_context *pipe = ctx->st->pipe; 1460 struct pipe_screen *screen = pipe->screen; 1461 enum pipe_format dest_format, src_format; 1462 GLboolean use_fallback = GL_TRUE; 1463 GLboolean matching_base_formats; 1464 GLuint format_writemask; 1465 struct pipe_surface *dest_surface = NULL; 1466 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1467 1468 /* any rendering in progress must flushed before we grab the fb image */ 1469 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1470 1471 /* make sure finalize_textures has been called? 1472 */ 1473 if (0) st_validate_state(ctx->st); 1474 1475 /* determine if copying depth or color data */ 1476 if (texBaseFormat == GL_DEPTH_COMPONENT || 1477 texBaseFormat == GL_DEPTH24_STENCIL8) { 1478 strb = st_renderbuffer(fb->_DepthBuffer); 1479 } 1480 else if (texBaseFormat == GL_DEPTH_STENCIL_EXT) { 1481 strb = st_renderbuffer(fb->_StencilBuffer); 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 = (strb->Base._BaseFormat == texImage->_BaseFormat); 1537 format_writemask = compatible_src_dst_formats(&strb->Base, texImage); 1538 1539 if (ctx->_ImageTransferState == 0x0) { 1540 1541 if (matching_base_formats && 1542 src_format == dest_format && 1543 !do_flip) 1544 { 1545 /* use surface_copy() / blit */ 1546 1547 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1548 stImage->face, stImage->level, 1549 destZ, 1550 PIPE_BUFFER_USAGE_GPU_WRITE); 1551 1552 /* for surface_copy(), y=0=top, always */ 1553 pipe->surface_copy(pipe, 1554 /* dest */ 1555 dest_surface, 1556 destX, destY, 1557 /* src */ 1558 strb->surface, 1559 srcX, srcY, 1560 /* size */ 1561 width, height); 1562 use_fallback = GL_FALSE; 1563 } 1564 else if (format_writemask && 1565 screen->is_format_supported(screen, src_format, 1566 PIPE_TEXTURE_2D, 1567 PIPE_TEXTURE_USAGE_SAMPLER, 1568 0) && 1569 screen->is_format_supported(screen, dest_format, 1570 PIPE_TEXTURE_2D, 1571 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1572 0)) { 1573 /* draw textured quad to do the copy */ 1574 GLint srcY0, srcY1; 1575 1576 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1577 stImage->face, stImage->level, 1578 destZ, 1579 PIPE_BUFFER_USAGE_GPU_WRITE); 1580 1581 if (do_flip) { 1582 srcY1 = strb->Base.Height - srcY - height; 1583 srcY0 = srcY1 + height; 1584 } 1585 else { 1586 srcY0 = srcY; 1587 srcY1 = srcY0 + height; 1588 } 1589 util_blit_pixels_writemask(ctx->st->blit, 1590 strb->surface, 1591 srcX, srcY0, 1592 srcX + width, srcY1, 1593 dest_surface, 1594 destX, destY, 1595 destX + width, destY + height, 1596 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1597 format_writemask); 1598 use_fallback = GL_FALSE; 1599 } 1600 1601 if (dest_surface) 1602 pipe_surface_reference(&dest_surface, NULL); 1603 } 1604 1605 if (use_fallback) { 1606 /* software fallback */ 1607 fallback_copy_texsubimage(ctx, target, level, 1608 strb, stImage, texBaseFormat, 1609 destX, destY, destZ, 1610 srcX, srcY, width, height); 1611 } 1612 1613 if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 1614 ctx->Driver.GenerateMipmap(ctx, target, texObj); 1615 } 1616} 1617 1618 1619 1620static void 1621st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1622 GLenum internalFormat, 1623 GLint x, GLint y, GLsizei width, GLint border) 1624{ 1625 struct gl_texture_unit *texUnit = 1626 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1627 struct gl_texture_object *texObj = 1628 _mesa_select_tex_object(ctx, texUnit, target); 1629 struct gl_texture_image *texImage = 1630 _mesa_select_tex_image(ctx, texObj, target, level); 1631 1632 /* Setup or redefine the texture object, texture and texture 1633 * image. Don't populate yet. 1634 */ 1635 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1636 width, border, 1637 GL_RGBA, CHAN_TYPE, NULL, 1638 &ctx->DefaultPacking, texObj, texImage); 1639 1640 st_copy_texsubimage(ctx, target, level, 1641 0, 0, 0, /* destX,Y,Z */ 1642 x, y, width, 1); /* src X, Y, size */ 1643} 1644 1645 1646static void 1647st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1648 GLenum internalFormat, 1649 GLint x, GLint y, GLsizei width, GLsizei height, 1650 GLint border) 1651{ 1652 struct gl_texture_unit *texUnit = 1653 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1654 struct gl_texture_object *texObj = 1655 _mesa_select_tex_object(ctx, texUnit, target); 1656 struct gl_texture_image *texImage = 1657 _mesa_select_tex_image(ctx, texObj, target, level); 1658 1659 /* Setup or redefine the texture object, texture and texture 1660 * image. Don't populate yet. 1661 */ 1662 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1663 width, height, border, 1664 GL_RGBA, CHAN_TYPE, NULL, 1665 &ctx->DefaultPacking, texObj, texImage); 1666 1667 st_copy_texsubimage(ctx, target, level, 1668 0, 0, 0, /* destX,Y,Z */ 1669 x, y, width, height); /* src X, Y, size */ 1670} 1671 1672 1673static void 1674st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1675 GLint xoffset, GLint x, GLint y, GLsizei width) 1676{ 1677 const GLint yoffset = 0, zoffset = 0; 1678 const GLsizei height = 1; 1679 st_copy_texsubimage(ctx, target, level, 1680 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1681 x, y, width, height); /* src X, Y, size */ 1682} 1683 1684 1685static void 1686st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1687 GLint xoffset, GLint yoffset, 1688 GLint x, GLint y, GLsizei width, GLsizei height) 1689{ 1690 const GLint zoffset = 0; 1691 st_copy_texsubimage(ctx, target, level, 1692 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1693 x, y, width, height); /* src X, Y, size */ 1694} 1695 1696 1697static void 1698st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1699 GLint xoffset, GLint yoffset, GLint zoffset, 1700 GLint x, GLint y, GLsizei width, GLsizei height) 1701{ 1702 st_copy_texsubimage(ctx, target, level, 1703 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1704 x, y, width, height); /* src X, Y, size */ 1705} 1706 1707 1708/** 1709 * Compute which mipmap levels that really need to be sent to the hardware. 1710 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1711 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1712 */ 1713static void 1714calculate_first_last_level(struct st_texture_object *stObj) 1715{ 1716 struct gl_texture_object *tObj = &stObj->base; 1717 1718 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1719 * and having firstLevel and lastLevel as signed prevents the need for 1720 * extra sign checks. 1721 */ 1722 GLint firstLevel; 1723 GLint lastLevel; 1724 1725 /* Yes, this looks overly complicated, but it's all needed. 1726 */ 1727 switch (tObj->Target) { 1728 case GL_TEXTURE_1D: 1729 case GL_TEXTURE_2D: 1730 case GL_TEXTURE_3D: 1731 case GL_TEXTURE_CUBE_MAP: 1732 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1733 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1734 */ 1735 firstLevel = lastLevel = tObj->BaseLevel; 1736 } 1737 else { 1738 firstLevel = 0; 1739 lastLevel = MIN2(tObj->MaxLevel, 1740 (int) tObj->Image[0][tObj->BaseLevel]->WidthLog2); 1741 } 1742 break; 1743 case GL_TEXTURE_RECTANGLE_NV: 1744 case GL_TEXTURE_4D_SGIS: 1745 firstLevel = lastLevel = 0; 1746 break; 1747 default: 1748 return; 1749 } 1750 1751 stObj->lastLevel = lastLevel; 1752} 1753 1754 1755static void 1756copy_image_data_to_texture(struct st_context *st, 1757 struct st_texture_object *stObj, 1758 GLuint dstLevel, 1759 struct st_texture_image *stImage) 1760{ 1761 if (stImage->pt) { 1762 /* Copy potentially with the blitter: 1763 */ 1764 st_texture_image_copy(st->pipe, 1765 stObj->pt, dstLevel, /* dest texture, level */ 1766 stImage->pt, /* src texture */ 1767 stImage->face 1768 ); 1769 1770 pipe_texture_reference(&stImage->pt, NULL); 1771 } 1772 else if (stImage->base.Data) { 1773 assert(stImage->base.Data != NULL); 1774 1775 /* More straightforward upload. 1776 */ 1777 1778 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1779 PIPE_TRANSFER_WRITE); 1780 1781 1782 st_texture_image_data(st, 1783 stObj->pt, 1784 stImage->face, 1785 dstLevel, 1786 stImage->base.Data, 1787 stImage->base.RowStride * 1788 stObj->pt->block.size, 1789 stImage->base.RowStride * 1790 stImage->base.Height * 1791 stObj->pt->block.size); 1792 _mesa_align_free(stImage->base.Data); 1793 stImage->base.Data = NULL; 1794 } 1795 1796 pipe_texture_reference(&stImage->pt, stObj->pt); 1797} 1798 1799 1800/** 1801 * Called during state validation. When this function is finished, 1802 * the texture object should be ready for rendering. 1803 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1804 */ 1805GLboolean 1806st_finalize_texture(GLcontext *ctx, 1807 struct pipe_context *pipe, 1808 struct gl_texture_object *tObj, 1809 GLboolean *needFlush) 1810{ 1811 struct st_texture_object *stObj = st_texture_object(tObj); 1812 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1813 GLuint cpp, face; 1814 struct st_texture_image *firstImage; 1815 1816 *needFlush = GL_FALSE; 1817 1818 /* We know/require this is true by now: 1819 */ 1820 assert(stObj->base._Complete); 1821 1822 /* What levels must the texture include at a minimum? 1823 */ 1824 calculate_first_last_level(stObj); 1825 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1826 1827 /* If both firstImage and stObj point to a texture which can contain 1828 * all active images, favour firstImage. Note that because of the 1829 * completeness requirement, we know that the image dimensions 1830 * will match. 1831 */ 1832 if (firstImage->pt && 1833 firstImage->pt != stObj->pt && 1834 firstImage->pt->last_level >= stObj->lastLevel) { 1835 pipe_texture_reference(&stObj->pt, firstImage->pt); 1836 } 1837 1838 /* FIXME: determine format block instead of cpp */ 1839 if (firstImage->base.IsCompressed) { 1840 cpp = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1841 } 1842 else { 1843 cpp = firstImage->base.TexFormat->TexelBytes; 1844 } 1845 1846 /* If we already have a gallium texture, check that it matches the texture 1847 * object's format, target, size, num_levels, etc. 1848 */ 1849 if (stObj->pt) { 1850 const enum pipe_format fmt = 1851 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1852 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1853 stObj->pt->format != fmt || 1854 stObj->pt->last_level < stObj->lastLevel || 1855 stObj->pt->width[0] != firstImage->base.Width2 || 1856 stObj->pt->height[0] != firstImage->base.Height2 || 1857 stObj->pt->depth[0] != firstImage->base.Depth2 || 1858 /* Nominal bytes per pixel: */ 1859 stObj->pt->block.size / stObj->pt->block.width != cpp) 1860 { 1861 pipe_texture_reference(&stObj->pt, NULL); 1862 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1863 } 1864 } 1865 1866 /* May need to create a new gallium texture: 1867 */ 1868 if (!stObj->pt) { 1869 const enum pipe_format fmt = 1870 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1871 GLuint usage = default_usage(fmt); 1872 1873 stObj->pt = st_texture_create(ctx->st, 1874 gl_target_to_pipe(stObj->base.Target), 1875 fmt, 1876 stObj->lastLevel, 1877 firstImage->base.Width2, 1878 firstImage->base.Height2, 1879 firstImage->base.Depth2, 1880 usage); 1881 1882 if (!stObj->pt) { 1883 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1884 return GL_FALSE; 1885 } 1886 } 1887 1888 /* Pull in any images not in the object's texture: 1889 */ 1890 for (face = 0; face < nr_faces; face++) { 1891 GLuint level; 1892 for (level = 0; level <= stObj->lastLevel; level++) { 1893 struct st_texture_image *stImage = 1894 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1895 1896 /* Need to import images in main memory or held in other textures. 1897 */ 1898 if (stImage && stObj->pt != stImage->pt) { 1899 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1900 *needFlush = GL_TRUE; 1901 } 1902 } 1903 } 1904 1905 return GL_TRUE; 1906} 1907 1908 1909/** 1910 * Returns pointer to a default/dummy texture. 1911 * This is typically used when the current shader has tex/sample instructions 1912 * but the user has not provided a (any) texture(s). 1913 */ 1914struct gl_texture_object * 1915st_get_default_texture(struct st_context *st) 1916{ 1917 if (!st->default_texture) { 1918 static const GLenum target = GL_TEXTURE_2D; 1919 GLubyte pixels[16][16][4]; 1920 struct gl_texture_object *texObj; 1921 struct gl_texture_image *texImg; 1922 GLuint i, j; 1923 1924 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1925 * when attempting to sample incomplete textures. 1926 */ 1927 for (i = 0; i < 16; i++) { 1928 for (j = 0; j < 16; j++) { 1929 pixels[i][j][0] = 0; 1930 pixels[i][j][1] = 0; 1931 pixels[i][j][2] = 0; 1932 pixels[i][j][3] = 255; 1933 } 1934 } 1935 1936 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1937 1938 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1939 1940 _mesa_init_teximage_fields(st->ctx, target, texImg, 1941 16, 16, 1, 0, /* w, h, d, border */ 1942 GL_RGBA); 1943 1944 st_TexImage(st->ctx, 2, target, 1945 0, GL_RGBA, /* level, intformat */ 1946 16, 16, 1, 0, /* w, h, d, border */ 1947 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1948 &st->ctx->DefaultPacking, 1949 texObj, texImg, 1950 0, 0); 1951 1952 texObj->MinFilter = GL_NEAREST; 1953 texObj->MagFilter = GL_NEAREST; 1954 texObj->_Complete = GL_TRUE; 1955 1956 st->default_texture = texObj; 1957 } 1958 return st->default_texture; 1959} 1960 1961 1962void 1963st_init_texture_functions(struct dd_function_table *functions) 1964{ 1965 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1966 functions->TexImage1D = st_TexImage1D; 1967 functions->TexImage2D = st_TexImage2D; 1968 functions->TexImage3D = st_TexImage3D; 1969 functions->TexSubImage1D = st_TexSubImage1D; 1970 functions->TexSubImage2D = st_TexSubImage2D; 1971 functions->TexSubImage3D = st_TexSubImage3D; 1972 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1973 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1974 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1975 functions->CopyTexImage1D = st_CopyTexImage1D; 1976 functions->CopyTexImage2D = st_CopyTexImage2D; 1977 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1978 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1979 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1980 functions->GenerateMipmap = st_generate_mipmap; 1981 1982 functions->GetTexImage = st_GetTexImage; 1983 1984 /* compressed texture functions */ 1985 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1986 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1987 functions->CompressedTextureSize = _mesa_compressed_texture_size; 1988 1989 functions->NewTextureObject = st_NewTextureObject; 1990 functions->NewTextureImage = st_NewTextureImage; 1991 functions->DeleteTexture = st_DeleteTextureObject; 1992 functions->FreeTexImageData = st_FreeTextureImageData; 1993 functions->UpdateTexturePalette = 0; 1994 1995 functions->TextureMemCpy = do_memcpy; 1996 1997 /* XXX Temporary until we can query pipe's texture sizes */ 1998 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1999} 2000