st_cb_texture.c revision f1c448d2e59bd14b4ddb63654e7b6d605f877d10
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#include "main/enums.h" 31#include "main/fbobject.h" 32#include "main/formats.h" 33#include "main/image.h" 34#include "main/imports.h" 35#include "main/macros.h" 36#include "main/mipmap.h" 37#include "main/pack.h" 38#include "main/pbo.h" 39#include "main/pixeltransfer.h" 40#include "main/texcompress.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_debug.h" 47#include "state_tracker/st_context.h" 48#include "state_tracker/st_cb_fbo.h" 49#include "state_tracker/st_cb_flush.h" 50#include "state_tracker/st_cb_texture.h" 51#include "state_tracker/st_format.h" 52#include "state_tracker/st_texture.h" 53#include "state_tracker/st_gen_mipmap.h" 54#include "state_tracker/st_atom.h" 55 56#include "pipe/p_context.h" 57#include "pipe/p_defines.h" 58#include "util/u_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_format.h" 63#include "util/u_surface.h" 64#include "util/u_sampler.h" 65#include "util/u_math.h" 66#include "util/u_box.h" 67 68#define DBG if (0) printf 69 70 71static enum pipe_texture_target 72gl_target_to_pipe(GLenum target) 73{ 74 switch (target) { 75 case GL_TEXTURE_1D: 76 case GL_PROXY_TEXTURE_1D: 77 return PIPE_TEXTURE_1D; 78 case GL_TEXTURE_2D: 79 case GL_PROXY_TEXTURE_2D: 80 case GL_TEXTURE_EXTERNAL_OES: 81 return PIPE_TEXTURE_2D; 82 case GL_TEXTURE_RECTANGLE_NV: 83 case GL_PROXY_TEXTURE_RECTANGLE_NV: 84 return PIPE_TEXTURE_RECT; 85 case GL_TEXTURE_3D: 86 case GL_PROXY_TEXTURE_3D: 87 return PIPE_TEXTURE_3D; 88 case GL_TEXTURE_CUBE_MAP_ARB: 89 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 90 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 91 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 92 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 93 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 94 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 95 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 96 return PIPE_TEXTURE_CUBE; 97 case GL_TEXTURE_1D_ARRAY_EXT: 98 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 99 return PIPE_TEXTURE_1D_ARRAY; 100 case GL_TEXTURE_2D_ARRAY_EXT: 101 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 102 return PIPE_TEXTURE_2D_ARRAY; 103 case GL_TEXTURE_BUFFER: 104 return PIPE_BUFFER; 105 default: 106 assert(0); 107 return 0; 108 } 109} 110 111 112/** called via ctx->Driver.NewTextureImage() */ 113static struct gl_texture_image * 114st_NewTextureImage(struct gl_context * ctx) 115{ 116 DBG("%s\n", __FUNCTION__); 117 (void) ctx; 118 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 119} 120 121 122/** called via ctx->Driver.DeleteTextureImage() */ 123static void 124st_DeleteTextureImage(struct gl_context * ctx, struct gl_texture_image *img) 125{ 126 /* nothing special (yet) for st_texture_image */ 127 _mesa_delete_texture_image(ctx, img); 128} 129 130 131/** called via ctx->Driver.NewTextureObject() */ 132static struct gl_texture_object * 133st_NewTextureObject(struct gl_context * ctx, GLuint name, GLenum target) 134{ 135 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 136 137 DBG("%s\n", __FUNCTION__); 138 _mesa_initialize_texture_object(&obj->base, name, target); 139 140 return &obj->base; 141} 142 143/** called via ctx->Driver.DeleteTextureObject() */ 144static void 145st_DeleteTextureObject(struct gl_context *ctx, 146 struct gl_texture_object *texObj) 147{ 148 struct st_context *st = st_context(ctx); 149 struct st_texture_object *stObj = st_texture_object(texObj); 150 if (stObj->pt) 151 pipe_resource_reference(&stObj->pt, NULL); 152 if (stObj->sampler_view) { 153 pipe_sampler_view_release(st->pipe, &stObj->sampler_view); 154 } 155 _mesa_delete_texture_object(ctx, texObj); 156} 157 158 159/** called via ctx->Driver.FreeTextureImageBuffer() */ 160static void 161st_FreeTextureImageBuffer(struct gl_context *ctx, 162 struct gl_texture_image *texImage) 163{ 164 struct st_texture_image *stImage = st_texture_image(texImage); 165 166 DBG("%s\n", __FUNCTION__); 167 168 if (stImage->pt) { 169 pipe_resource_reference(&stImage->pt, NULL); 170 } 171 172 if (stImage->TexData) { 173 _mesa_align_free(stImage->TexData); 174 stImage->TexData = NULL; 175 } 176} 177 178 179/** called via ctx->Driver.MapTextureImage() */ 180static void 181st_MapTextureImage(struct gl_context *ctx, 182 struct gl_texture_image *texImage, 183 GLuint slice, GLuint x, GLuint y, GLuint w, GLuint h, 184 GLbitfield mode, 185 GLubyte **mapOut, GLint *rowStrideOut) 186{ 187 struct st_context *st = st_context(ctx); 188 struct st_texture_image *stImage = st_texture_image(texImage); 189 unsigned pipeMode; 190 GLubyte *map; 191 192 pipeMode = 0x0; 193 if (mode & GL_MAP_READ_BIT) 194 pipeMode |= PIPE_TRANSFER_READ; 195 if (mode & GL_MAP_WRITE_BIT) 196 pipeMode |= PIPE_TRANSFER_WRITE; 197 if (mode & GL_MAP_INVALIDATE_RANGE_BIT) 198 pipeMode |= PIPE_TRANSFER_DISCARD_RANGE; 199 200 map = st_texture_image_map(st, stImage, slice, pipeMode, x, y, w, h); 201 if (map) { 202 *mapOut = map; 203 *rowStrideOut = stImage->transfer->stride; 204 } 205 else { 206 *mapOut = NULL; 207 *rowStrideOut = 0; 208 } 209} 210 211 212/** called via ctx->Driver.UnmapTextureImage() */ 213static void 214st_UnmapTextureImage(struct gl_context *ctx, 215 struct gl_texture_image *texImage, 216 GLuint slice) 217{ 218 struct st_context *st = st_context(ctx); 219 struct st_texture_image *stImage = st_texture_image(texImage); 220 st_texture_image_unmap(st, stImage); 221} 222 223 224/** 225 * Return default texture resource binding bitmask for the given format. 226 */ 227static GLuint 228default_bindings(struct st_context *st, enum pipe_format format) 229{ 230 struct pipe_screen *screen = st->pipe->screen; 231 const unsigned target = PIPE_TEXTURE_2D; 232 unsigned bindings; 233 234 if (util_format_is_depth_or_stencil(format)) 235 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL; 236 else 237 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; 238 239 if (screen->is_format_supported(screen, format, target, 0, bindings)) 240 return bindings; 241 else { 242 /* Try non-sRGB. */ 243 format = util_format_linear(format); 244 245 if (screen->is_format_supported(screen, format, target, 0, bindings)) 246 return bindings; 247 else 248 return PIPE_BIND_SAMPLER_VIEW; 249 } 250} 251 252 253/** Return number of image dimensions (1, 2 or 3) for a texture target. */ 254static GLuint 255get_texture_dims(GLenum target) 256{ 257 switch (target) { 258 case GL_TEXTURE_1D: 259 case GL_TEXTURE_1D_ARRAY_EXT: 260 case GL_TEXTURE_BUFFER: 261 return 1; 262 case GL_TEXTURE_2D: 263 case GL_TEXTURE_CUBE_MAP_ARB: 264 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 265 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 266 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 267 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 268 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 269 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 270 case GL_TEXTURE_RECTANGLE_NV: 271 case GL_TEXTURE_2D_ARRAY_EXT: 272 case GL_TEXTURE_EXTERNAL_OES: 273 return 2; 274 case GL_TEXTURE_3D: 275 return 3; 276 default: 277 assert(0 && "invalid texture target in get_texture_dims()"); 278 return 1; 279 } 280} 281 282 283/** 284 * Given the size of a mipmap image, try to compute the size of the level=0 285 * mipmap image. 286 * 287 * Note that this isn't always accurate for odd-sized, non-POW textures. 288 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81. 289 * 290 * \return GL_TRUE for success, GL_FALSE for failure 291 */ 292static GLboolean 293guess_base_level_size(GLenum target, 294 GLuint width, GLuint height, GLuint depth, GLuint level, 295 GLuint *width0, GLuint *height0, GLuint *depth0) 296{ 297 const GLuint dims = get_texture_dims(target); 298 299 assert(width >= 1); 300 assert(height >= 1); 301 assert(depth >= 1); 302 303 if (level > 0) { 304 /* Depending on the image's size, we can't always make a guess here */ 305 if ((dims >= 1 && width == 1) || 306 (dims >= 2 && height == 1) || 307 (dims >= 3 && depth == 1)) { 308 /* we can't determine the image size at level=0 */ 309 return GL_FALSE; 310 } 311 312 /* grow the image size until we hit level = 0 */ 313 while (level > 0) { 314 if (width > 1) 315 width <<= 1; 316 if (height > 1) 317 height <<= 1; 318 if (depth > 1) 319 depth <<= 1; 320 level--; 321 } 322 } 323 324 *width0 = width; 325 *height0 = height; 326 *depth0 = depth; 327 328 return GL_TRUE; 329} 330 331 332/** 333 * Try to allocate a pipe_resource object for the given st_texture_object. 334 * 335 * We use the given st_texture_image as a clue to determine the size of the 336 * mipmap image at level=0. 337 * 338 * \return GL_TRUE for success, GL_FALSE if out of memory. 339 */ 340static GLboolean 341guess_and_alloc_texture(struct st_context *st, 342 struct st_texture_object *stObj, 343 const struct st_texture_image *stImage) 344{ 345 GLuint lastLevel, width, height, depth; 346 GLuint bindings; 347 GLuint ptWidth, ptHeight, ptDepth, ptLayers; 348 enum pipe_format fmt; 349 350 DBG("%s\n", __FUNCTION__); 351 352 assert(!stObj->pt); 353 354 if (!guess_base_level_size(stObj->base.Target, 355 stImage->base.Width2, 356 stImage->base.Height2, 357 stImage->base.Depth2, 358 stImage->base.Level, 359 &width, &height, &depth)) { 360 /* we can't determine the image size at level=0 */ 361 stObj->width0 = stObj->height0 = stObj->depth0 = 0; 362 /* this is not an out of memory error */ 363 return GL_TRUE; 364 } 365 366 /* At this point, (width x height x depth) is the expected size of 367 * the level=0 mipmap image. 368 */ 369 370 /* Guess a reasonable value for lastLevel. With OpenGL we have no 371 * idea how many mipmap levels will be in a texture until we start 372 * to render with it. Make an educated guess here but be prepared 373 * to re-allocating a texture buffer with space for more (or fewer) 374 * mipmap levels later. 375 */ 376 if ((stObj->base.Sampler.MinFilter == GL_NEAREST || 377 stObj->base.Sampler.MinFilter == GL_LINEAR || 378 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 379 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 380 !stObj->base.GenerateMipmap && 381 stImage->base.Level == 0) { 382 /* only alloc space for a single mipmap level */ 383 lastLevel = 0; 384 } 385 else { 386 /* alloc space for a full mipmap */ 387 GLuint l2width = util_logbase2(width); 388 GLuint l2height = util_logbase2(height); 389 GLuint l2depth = util_logbase2(depth); 390 lastLevel = MAX2(MAX2(l2width, l2height), l2depth); 391 } 392 393 /* Save the level=0 dimensions */ 394 stObj->width0 = width; 395 stObj->height0 = height; 396 stObj->depth0 = depth; 397 398 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat); 399 400 bindings = default_bindings(st, fmt); 401 402 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, 403 width, height, depth, 404 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 405 406 stObj->pt = st_texture_create(st, 407 gl_target_to_pipe(stObj->base.Target), 408 fmt, 409 lastLevel, 410 ptWidth, 411 ptHeight, 412 ptDepth, 413 ptLayers, 414 bindings); 415 416 stObj->lastLevel = lastLevel; 417 418 DBG("%s returning %d\n", __FUNCTION__, (stObj->pt != NULL)); 419 420 return stObj->pt != NULL; 421} 422 423 424/** 425 * Called via ctx->Driver.AllocTextureImageBuffer(). 426 * If the texture object/buffer already has space for the indicated image, 427 * we're done. Otherwise, allocate memory for the new texture image. 428 */ 429static GLboolean 430st_AllocTextureImageBuffer(struct gl_context *ctx, 431 struct gl_texture_image *texImage) 432{ 433 struct st_context *st = st_context(ctx); 434 struct st_texture_image *stImage = st_texture_image(texImage); 435 struct st_texture_object *stObj = st_texture_object(texImage->TexObject); 436 const GLuint level = texImage->Level; 437 GLuint width = texImage->Width; 438 GLuint height = texImage->Height; 439 GLuint depth = texImage->Depth; 440 441 DBG("%s\n", __FUNCTION__); 442 443 assert(!stImage->TexData); 444 assert(!stImage->pt); /* xxx this might be wrong */ 445 446 /* Look if the parent texture object has space for this image */ 447 if (stObj->pt && 448 level <= stObj->pt->last_level && 449 st_texture_match_image(stObj->pt, texImage)) { 450 /* this image will fit in the existing texture object's memory */ 451 pipe_resource_reference(&stImage->pt, stObj->pt); 452 return GL_TRUE; 453 } 454 455 /* The parent texture object does not have space for this image */ 456 457 pipe_resource_reference(&stObj->pt, NULL); 458 pipe_sampler_view_release(st->pipe, &stObj->sampler_view); 459 460 if (!guess_and_alloc_texture(st, stObj, stImage)) { 461 /* Probably out of memory. 462 * Try flushing any pending rendering, then retry. 463 */ 464 st_finish(st); 465 if (!guess_and_alloc_texture(st, stObj, stImage)) { 466 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 467 return GL_FALSE; 468 } 469 } 470 471 if (stObj->pt && 472 st_texture_match_image(stObj->pt, texImage)) { 473 /* The image will live in the object's mipmap memory */ 474 pipe_resource_reference(&stImage->pt, stObj->pt); 475 assert(stImage->pt); 476 return GL_TRUE; 477 } 478 else { 479 /* Create a new, temporary texture/resource/buffer to hold this 480 * one texture image. Note that when we later access this image 481 * (either for mapping or copying) we'll want to always specify 482 * mipmap level=0, even if the image represents some other mipmap 483 * level. 484 */ 485 enum pipe_format format = 486 st_mesa_format_to_pipe_format(texImage->TexFormat); 487 GLuint bindings = default_bindings(st, format); 488 GLuint ptWidth, ptHeight, ptDepth, ptLayers; 489 490 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, 491 width, height, depth, 492 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 493 494 stImage->pt = st_texture_create(st, 495 gl_target_to_pipe(stObj->base.Target), 496 format, 497 0, /* lastLevel */ 498 ptWidth, 499 ptHeight, 500 ptDepth, 501 ptLayers, 502 bindings); 503 return stImage->pt != NULL; 504 } 505} 506 507 508/** 509 * Preparation prior to glTexImage. Basically check the 'surface_based' 510 * field and switch to a "normal" tex image if necessary. 511 */ 512static void 513prep_teximage(struct gl_context *ctx, struct gl_texture_image *texImage, 514 GLenum format, GLenum type) 515{ 516 struct gl_texture_object *texObj = texImage->TexObject; 517 struct st_texture_object *stObj = st_texture_object(texObj); 518 519 /* switch to "normal" */ 520 if (stObj->surface_based) { 521 const GLenum target = texObj->Target; 522 const GLuint level = texImage->Level; 523 gl_format texFormat; 524 525 _mesa_clear_texture_object(ctx, texObj); 526 pipe_resource_reference(&stObj->pt, NULL); 527 528 /* oops, need to init this image again */ 529 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 530 texImage->InternalFormat, format, 531 type); 532 533 _mesa_init_teximage_fields(ctx, texImage, 534 texImage->Width, texImage->Height, 535 texImage->Depth, texImage->Border, 536 texImage->InternalFormat, texFormat); 537 538 stObj->surface_based = GL_FALSE; 539 } 540} 541 542 543static void 544st_TexImage(struct gl_context * ctx, GLuint dims, 545 struct gl_texture_image *texImage, 546 GLenum format, GLenum type, const void *pixels, 547 const struct gl_pixelstore_attrib *unpack) 548{ 549 prep_teximage(ctx, texImage, format, type); 550 _mesa_store_teximage(ctx, dims, texImage, format, type, pixels, unpack); 551} 552 553 554static void 555st_CompressedTexImage(struct gl_context *ctx, GLuint dims, 556 struct gl_texture_image *texImage, 557 GLsizei imageSize, const GLvoid *data) 558{ 559 prep_teximage(ctx, texImage, GL_NONE, GL_NONE); 560 _mesa_store_compressed_teximage(ctx, dims, texImage, imageSize, data); 561} 562 563 564 565/** 566 * glGetTexImage() helper: decompress a compressed texture by rendering 567 * a textured quad. Store the results in the user's buffer. 568 */ 569static void 570decompress_with_blit(struct gl_context * ctx, 571 GLenum format, GLenum type, GLvoid *pixels, 572 struct gl_texture_image *texImage) 573{ 574 struct st_context *st = st_context(ctx); 575 struct pipe_context *pipe = st->pipe; 576 struct st_texture_image *stImage = st_texture_image(texImage); 577 struct st_texture_object *stObj = st_texture_object(texImage->TexObject); 578 struct pipe_sampler_view *src_view; 579 const GLuint width = texImage->Width; 580 const GLuint height = texImage->Height; 581 struct pipe_surface *dst_surface; 582 struct pipe_resource *dst_texture; 583 struct pipe_transfer *tex_xfer; 584 unsigned bind = (PIPE_BIND_RENDER_TARGET | /* util_blit may choose to render */ 585 PIPE_BIND_TRANSFER_READ); 586 587 /* create temp / dest surface */ 588 if (!util_create_rgba_surface(pipe, width, height, bind, 589 &dst_texture, &dst_surface)) { 590 _mesa_problem(ctx, "util_create_rgba_surface() failed " 591 "in decompress_with_blit()"); 592 return; 593 } 594 595 /* Disable conditional rendering. */ 596 if (st->render_condition) { 597 pipe->render_condition(pipe, NULL, 0); 598 } 599 600 /* Create sampler view that limits fetches to the source mipmap level */ 601 { 602 struct pipe_sampler_view sv_temp; 603 604 u_sampler_view_default_template(&sv_temp, stObj->pt, stObj->pt->format); 605 606 sv_temp.format = util_format_linear(sv_temp.format); 607 sv_temp.u.tex.first_level = 608 sv_temp.u.tex.last_level = texImage->Level; 609 610 src_view = pipe->create_sampler_view(pipe, stObj->pt, &sv_temp); 611 if (!src_view) { 612 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage"); 613 return; 614 } 615 } 616 617 /* blit/render/decompress */ 618 util_blit_pixels_tex(st->blit, 619 src_view, /* pipe_resource (src) */ 620 0, 0, /* src x0, y0 */ 621 width, height, /* src x1, y1 */ 622 dst_surface, /* pipe_surface (dst) */ 623 0, 0, /* dst x0, y0 */ 624 width, height, /* dst x1, y1 */ 625 0.0, /* z */ 626 PIPE_TEX_MIPFILTER_NEAREST); 627 628 /* Restore conditional rendering state. */ 629 if (st->render_condition) { 630 pipe->render_condition(pipe, st->render_condition, 631 st->condition_mode); 632 } 633 634 /* map the dst_surface so we can read from it */ 635 tex_xfer = pipe_get_transfer(pipe, 636 dst_texture, 0, 0, 637 PIPE_TRANSFER_READ, 638 0, 0, width, height); 639 640 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 641 642 /* copy/pack data into user buffer */ 643 if (_mesa_format_matches_format_and_type(stImage->base.TexFormat, 644 format, type, 645 ctx->Pack.SwapBytes)) { 646 /* memcpy */ 647 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); 648 ubyte *map = pipe_transfer_map(pipe, tex_xfer); 649 GLuint row; 650 for (row = 0; row < height; row++) { 651 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 652 height, format, type, row, 0); 653 memcpy(dest, map, bytesPerRow); 654 map += tex_xfer->stride; 655 } 656 pipe_transfer_unmap(pipe, tex_xfer); 657 } 658 else { 659 /* format translation via floats */ 660 GLuint row; 661 enum pipe_format pformat = util_format_linear(dst_texture->format); 662 GLfloat *rgba; 663 664 rgba = malloc(width * 4 * sizeof(GLfloat)); 665 if (!rgba) { 666 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()"); 667 goto end; 668 } 669 670 for (row = 0; row < height; row++) { 671 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 672 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 673 height, format, type, row, 0); 674 675 if (ST_DEBUG & DEBUG_FALLBACK) 676 debug_printf("%s: fallback format translation\n", __FUNCTION__); 677 678 /* get float[4] rgba row from surface */ 679 pipe_get_tile_rgba_format(pipe, tex_xfer, 0, row, width, 1, 680 pformat, rgba); 681 682 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 683 type, dest, &ctx->Pack, transferOps); 684 } 685 686 free(rgba); 687 } 688 689end: 690 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 691 692 pipe->transfer_destroy(pipe, tex_xfer); 693 694 /* destroy the temp / dest surface */ 695 util_destroy_rgba_surface(dst_texture, dst_surface); 696 697 pipe_sampler_view_release(pipe, &src_view); 698} 699 700 701 702/** 703 * Called via ctx->Driver.GetTexImage() 704 */ 705static void 706st_GetTexImage(struct gl_context * ctx, 707 GLenum format, GLenum type, GLvoid * pixels, 708 struct gl_texture_image *texImage) 709{ 710 struct st_texture_image *stImage = st_texture_image(texImage); 711 712 if (stImage->pt && util_format_is_s3tc(stImage->pt->format)) { 713 /* Need to decompress the texture. 714 * We'll do this by rendering a textured quad (which is hopefully 715 * faster than using the fallback code in texcompress.c). 716 * Note that we only expect RGBA formats (no Z/depth formats). 717 */ 718 decompress_with_blit(ctx, format, type, pixels, texImage); 719 } 720 else { 721 _mesa_get_teximage(ctx, format, type, pixels, texImage); 722 } 723} 724 725 726/** 727 * Do a CopyTexSubImage operation using a read transfer from the source, 728 * a write transfer to the destination and get_tile()/put_tile() to access 729 * the pixels/texels. 730 * 731 * Note: srcY=0=TOP of renderbuffer 732 */ 733static void 734fallback_copy_texsubimage(struct gl_context *ctx, 735 struct st_renderbuffer *strb, 736 struct st_texture_image *stImage, 737 GLenum baseFormat, 738 GLint destX, GLint destY, GLint destZ, 739 GLint srcX, GLint srcY, 740 GLsizei width, GLsizei height) 741{ 742 struct st_context *st = st_context(ctx); 743 struct pipe_context *pipe = st->pipe; 744 struct pipe_transfer *src_trans; 745 GLvoid *texDest; 746 enum pipe_transfer_usage transfer_usage; 747 748 if (ST_DEBUG & DEBUG_FALLBACK) 749 debug_printf("%s: fallback processing\n", __FUNCTION__); 750 751 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 752 srcY = strb->Base.Height - srcY - height; 753 } 754 755 src_trans = pipe_get_transfer(pipe, 756 strb->texture, 757 strb->rtt_level, 758 strb->rtt_face + strb->rtt_slice, 759 PIPE_TRANSFER_READ, 760 srcX, srcY, 761 width, height); 762 763 if ((baseFormat == GL_DEPTH_COMPONENT || 764 baseFormat == GL_DEPTH_STENCIL) && 765 util_format_is_depth_and_stencil(stImage->pt->format)) 766 transfer_usage = PIPE_TRANSFER_READ_WRITE; 767 else 768 transfer_usage = PIPE_TRANSFER_WRITE; 769 770 /* XXX this used to ignore destZ param */ 771 texDest = st_texture_image_map(st, stImage, destZ, transfer_usage, 772 destX, destY, width, height); 773 774 if (baseFormat == GL_DEPTH_COMPONENT || 775 baseFormat == GL_DEPTH_STENCIL) { 776 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 777 ctx->Pixel.DepthBias != 0.0F); 778 GLint row, yStep; 779 uint *data; 780 781 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 782 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 783 srcY = height - 1; 784 yStep = -1; 785 } 786 else { 787 srcY = 0; 788 yStep = 1; 789 } 790 791 data = malloc(width * sizeof(uint)); 792 793 if (data) { 794 /* To avoid a large temp memory allocation, do copy row by row */ 795 for (row = 0; row < height; row++, srcY += yStep) { 796 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data); 797 if (scaleOrBias) { 798 _mesa_scale_and_bias_depth_uint(ctx, width, data); 799 } 800 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data); 801 } 802 } 803 else { 804 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage()"); 805 } 806 807 free(data); 808 } 809 else { 810 /* RGBA format */ 811 GLfloat *tempSrc = 812 malloc(width * height * 4 * sizeof(GLfloat)); 813 814 if (tempSrc && texDest) { 815 const GLint dims = 2; 816 const GLint dstRowStride = stImage->transfer->stride; 817 struct gl_texture_image *texImage = &stImage->base; 818 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 819 820 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 821 unpack.Invert = GL_TRUE; 822 } 823 824 /* get float/RGBA image from framebuffer */ 825 /* XXX this usually involves a lot of int/float conversion. 826 * try to avoid that someday. 827 */ 828 pipe_get_tile_rgba_format(pipe, src_trans, 0, 0, width, height, 829 util_format_linear(strb->texture->format), 830 tempSrc); 831 832 /* Store into texture memory. 833 * Note that this does some special things such as pixel transfer 834 * ops and format conversion. In particular, if the dest tex format 835 * is actually RGBA but the user created the texture as GL_RGB we 836 * need to fill-in/override the alpha channel with 1.0. 837 */ 838 _mesa_texstore(ctx, dims, 839 texImage->_BaseFormat, 840 texImage->TexFormat, 841 dstRowStride, 842 (GLubyte **) &texDest, 843 width, height, 1, 844 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 845 &unpack); 846 } 847 else { 848 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 849 } 850 851 free(tempSrc); 852 } 853 854 st_texture_image_unmap(st, stImage); 855 pipe->transfer_destroy(pipe, src_trans); 856} 857 858 859 860/** 861 * If the format of the src renderbuffer and the format of the dest 862 * texture are compatible (in terms of blitting), return a TGSI writemask 863 * to be used during the blit. 864 * If the src/dest are incompatible, return 0. 865 */ 866static unsigned 867compatible_src_dst_formats(struct gl_context *ctx, 868 const struct gl_renderbuffer *src, 869 const struct gl_texture_image *dst) 870{ 871 /* Get logical base formats for the src and dest. 872 * That is, use the user-requested formats and not the actual, device- 873 * chosen formats. 874 * For example, the user may have requested an A8 texture but the 875 * driver may actually be using an RGBA texture format. When we 876 * copy/blit to that texture, we only want to copy the Alpha channel 877 * and not the RGB channels. 878 * 879 * Similarly, when the src FBO was created an RGB format may have been 880 * requested but the driver actually chose an RGBA format. In that case, 881 * we don't want to copy the undefined Alpha channel to the dest texture 882 * (it should be 1.0). 883 */ 884 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat); 885 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat); 886 887 /** 888 * XXX when we have red-only and red/green renderbuffers we'll need 889 * to add more cases here (or implement a general-purpose routine that 890 * queries the existance of the R,G,B,A channels in the src and dest). 891 */ 892 if (srcFormat == dstFormat) { 893 /* This is the same as matching_base_formats, which should 894 * always pass, as it did previously. 895 */ 896 return TGSI_WRITEMASK_XYZW; 897 } 898 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) { 899 /* Make sure that A in the dest is 1. The actual src format 900 * may be RGBA and have undefined A values. 901 */ 902 return TGSI_WRITEMASK_XYZ; 903 } 904 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) { 905 /* Make sure that A in the dest is 1. The actual dst format 906 * may be RGBA and will need A=1 to provide proper alpha values 907 * when sampled later. 908 */ 909 return TGSI_WRITEMASK_XYZ; 910 } 911 else { 912 if (ST_DEBUG & DEBUG_FALLBACK) 913 debug_printf("%s failed for src %s, dst %s\n", 914 __FUNCTION__, 915 _mesa_lookup_enum_by_nr(srcFormat), 916 _mesa_lookup_enum_by_nr(dstFormat)); 917 918 /* Otherwise fail. 919 */ 920 return 0; 921 } 922} 923 924 925 926/** 927 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 928 * Note that the region to copy has already been clipped so we know we 929 * won't read from outside the source renderbuffer's bounds. 930 * 931 * Note: srcY=0=Bottom of renderbuffer (GL convention) 932 */ 933static void 934st_CopyTexSubImage(struct gl_context *ctx, GLuint dims, 935 struct gl_texture_image *texImage, 936 GLint destX, GLint destY, GLint destZ, 937 struct gl_renderbuffer *rb, 938 GLint srcX, GLint srcY, GLsizei width, GLsizei height) 939{ 940 struct st_texture_image *stImage = st_texture_image(texImage); 941 const GLenum texBaseFormat = texImage->_BaseFormat; 942 struct gl_framebuffer *fb = ctx->ReadBuffer; 943 struct st_renderbuffer *strb; 944 struct st_context *st = st_context(ctx); 945 struct pipe_context *pipe = st->pipe; 946 struct pipe_screen *screen = pipe->screen; 947 enum pipe_format dest_format, src_format; 948 GLboolean matching_base_formats; 949 GLuint color_writemask, zs_writemask, sample_count; 950 struct pipe_surface *dest_surface = NULL; 951 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 952 struct pipe_surface surf_tmpl; 953 unsigned int dst_usage; 954 GLint srcY0, srcY1; 955 956 /* make sure finalize_textures has been called? 957 */ 958 if (0) st_validate_state(st); 959 960 /* determine if copying depth or color data */ 961 if (texBaseFormat == GL_DEPTH_COMPONENT || 962 texBaseFormat == GL_DEPTH_STENCIL) { 963 strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer); 964 } 965 else { 966 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 967 strb = st_renderbuffer(fb->_ColorReadBuffer); 968 } 969 970 if (!strb || !strb->surface || !stImage->pt) { 971 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 972 return; 973 } 974 975 sample_count = strb->surface->texture->nr_samples; 976 /* I believe this would be legal, presumably would need to do a resolve 977 for color, and for depth/stencil spec says to just use one of the 978 depth/stencil samples per pixel? Need some transfer clarifications. */ 979 assert(sample_count < 2); 980 981 assert(strb); 982 assert(strb->surface); 983 assert(stImage->pt); 984 985 src_format = strb->surface->format; 986 dest_format = stImage->pt->format; 987 988 /* 989 * Determine if the src framebuffer and dest texture have the same 990 * base format. We need this to detect a case such as the framebuffer 991 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 992 * texture format stores RGBA we need to set A=1 (overriding the 993 * framebuffer's alpha values). We can't do that with the blit or 994 * textured-quad paths. 995 */ 996 matching_base_formats = 997 (_mesa_get_format_base_format(strb->Base.Format) == 998 _mesa_get_format_base_format(texImage->TexFormat)); 999 1000 if (ctx->_ImageTransferState) { 1001 goto fallback; 1002 } 1003 1004 if (texImage->TexObject->Target == GL_TEXTURE_1D_ARRAY) { 1005 /* 1D arrays might be thought of as 2D images but the actual layout 1006 * might not be that way. At some points, we convert OpenGL's 1D 1007 * array 'height' into gallium 'layers' and that prevents the blit 1008 * utility code from doing the right thing. Simpy use the memcpy-based 1009 * fallback. 1010 */ 1011 goto fallback; 1012 } 1013 1014 if (matching_base_formats && 1015 src_format == dest_format && 1016 !do_flip) { 1017 /* use surface_copy() / blit */ 1018 struct pipe_box src_box; 1019 unsigned dstLevel; 1020 1021 u_box_2d_zslice(srcX, srcY, strb->surface->u.tex.first_layer, 1022 width, height, &src_box); 1023 1024 /* If stImage->pt is an independent image (not a pointer into a full 1025 * mipmap) stImage->pt.last_level will be zero and we need to use that 1026 * as the dest level. 1027 */ 1028 dstLevel = MIN2(stImage->base.Level, stImage->pt->last_level); 1029 1030 /* for resource_copy_region(), y=0=top, always */ 1031 pipe->resource_copy_region(pipe, 1032 /* dest */ 1033 stImage->pt, 1034 dstLevel, 1035 destX, destY, destZ + stImage->base.Face, 1036 /* src */ 1037 strb->texture, 1038 strb->surface->u.tex.level, 1039 &src_box); 1040 return; 1041 } 1042 1043 if (texBaseFormat == GL_DEPTH_STENCIL) { 1044 goto fallback; 1045 } 1046 1047 if (texBaseFormat == GL_DEPTH_COMPONENT) { 1048 color_writemask = 0; 1049 zs_writemask = BLIT_WRITEMASK_Z; 1050 dst_usage = PIPE_BIND_DEPTH_STENCIL; 1051 } 1052 else { 1053 color_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage); 1054 zs_writemask = 0; 1055 dst_usage = PIPE_BIND_RENDER_TARGET; 1056 } 1057 1058 if ((!color_writemask && !zs_writemask) || 1059 !screen->is_format_supported(screen, src_format, 1060 PIPE_TEXTURE_2D, sample_count, 1061 PIPE_BIND_SAMPLER_VIEW) || 1062 !screen->is_format_supported(screen, dest_format, 1063 PIPE_TEXTURE_2D, 0, 1064 dst_usage)) { 1065 goto fallback; 1066 } 1067 1068 if (do_flip) { 1069 srcY1 = strb->Base.Height - srcY - height; 1070 srcY0 = srcY1 + height; 1071 } 1072 else { 1073 srcY0 = srcY; 1074 srcY1 = srcY0 + height; 1075 } 1076 1077 /* Disable conditional rendering. */ 1078 if (st->render_condition) { 1079 pipe->render_condition(pipe, NULL, 0); 1080 } 1081 1082 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 1083 surf_tmpl.format = util_format_linear(stImage->pt->format); 1084 surf_tmpl.usage = dst_usage; 1085 surf_tmpl.u.tex.level = stImage->base.Level; 1086 surf_tmpl.u.tex.first_layer = stImage->base.Face + destZ; 1087 surf_tmpl.u.tex.last_layer = stImage->base.Face + destZ; 1088 1089 dest_surface = pipe->create_surface(pipe, stImage->pt, 1090 &surf_tmpl); 1091 util_blit_pixels(st->blit, 1092 strb->texture, 1093 strb->surface->u.tex.level, 1094 srcX, srcY0, 1095 srcX + width, srcY1, 1096 strb->surface->u.tex.first_layer, 1097 dest_surface, 1098 destX, destY, 1099 destX + width, destY + height, 1100 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1101 color_writemask, zs_writemask); 1102 pipe_surface_reference(&dest_surface, NULL); 1103 1104 /* Restore conditional rendering state. */ 1105 if (st->render_condition) { 1106 pipe->render_condition(pipe, st->render_condition, 1107 st->condition_mode); 1108 } 1109 1110 return; 1111 1112fallback: 1113 /* software fallback */ 1114 fallback_copy_texsubimage(ctx, 1115 strb, stImage, texBaseFormat, 1116 destX, destY, destZ, 1117 srcX, srcY, width, height); 1118} 1119 1120 1121/** 1122 * Copy image data from stImage into the texture object 'stObj' at level 1123 * 'dstLevel'. 1124 */ 1125static void 1126copy_image_data_to_texture(struct st_context *st, 1127 struct st_texture_object *stObj, 1128 GLuint dstLevel, 1129 struct st_texture_image *stImage) 1130{ 1131 /* debug checks */ 1132 { 1133 const struct gl_texture_image *dstImage = 1134 stObj->base.Image[stImage->base.Face][dstLevel]; 1135 assert(dstImage); 1136 assert(dstImage->Width == stImage->base.Width); 1137 assert(dstImage->Height == stImage->base.Height); 1138 assert(dstImage->Depth == stImage->base.Depth); 1139 } 1140 1141 if (stImage->pt) { 1142 /* Copy potentially with the blitter: 1143 */ 1144 GLuint src_level; 1145 if (stImage->pt != stObj->pt) 1146 src_level = 0; 1147 else 1148 src_level = stImage->base.Level; 1149 1150 st_texture_image_copy(st->pipe, 1151 stObj->pt, dstLevel, /* dest texture, level */ 1152 stImage->pt, src_level, /* src texture, level */ 1153 stImage->base.Face); 1154 1155 pipe_resource_reference(&stImage->pt, NULL); 1156 } 1157 else if (stImage->TexData) { 1158 /* Copy from malloc'd memory */ 1159 /* XXX this should be re-examined/tested with a compressed format */ 1160 GLuint blockSize = util_format_get_blocksize(stObj->pt->format); 1161 GLuint srcRowStride = stImage->base.Width * blockSize; 1162 GLuint srcSliceStride = stImage->base.Height * srcRowStride; 1163 st_texture_image_data(st, 1164 stObj->pt, 1165 stImage->base.Face, 1166 dstLevel, 1167 stImage->TexData, 1168 srcRowStride, 1169 srcSliceStride); 1170 _mesa_align_free(stImage->TexData); 1171 stImage->TexData = NULL; 1172 } 1173 1174 pipe_resource_reference(&stImage->pt, stObj->pt); 1175} 1176 1177 1178/** 1179 * Called during state validation. When this function is finished, 1180 * the texture object should be ready for rendering. 1181 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1182 */ 1183GLboolean 1184st_finalize_texture(struct gl_context *ctx, 1185 struct pipe_context *pipe, 1186 struct gl_texture_object *tObj) 1187{ 1188 struct st_context *st = st_context(ctx); 1189 struct st_texture_object *stObj = st_texture_object(tObj); 1190 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1191 GLuint face; 1192 struct st_texture_image *firstImage; 1193 enum pipe_format firstImageFormat; 1194 GLuint ptWidth, ptHeight, ptDepth, ptLayers; 1195 1196 if (_mesa_is_texture_complete(tObj, &tObj->Sampler)) { 1197 /* The texture is complete and we know exactly how many mipmap levels 1198 * are present/needed. This is conditional because we may be called 1199 * from the st_generate_mipmap() function when the texture object is 1200 * incomplete. In that case, we'll have set stObj->lastLevel before 1201 * we get here. 1202 */ 1203 if (stObj->base.Sampler.MinFilter == GL_LINEAR || 1204 stObj->base.Sampler.MinFilter == GL_NEAREST) 1205 stObj->lastLevel = stObj->base.BaseLevel; 1206 else 1207 stObj->lastLevel = stObj->base._MaxLevel; 1208 } 1209 1210 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1211 assert(firstImage); 1212 1213 /* If both firstImage and stObj point to a texture which can contain 1214 * all active images, favour firstImage. Note that because of the 1215 * completeness requirement, we know that the image dimensions 1216 * will match. 1217 */ 1218 if (firstImage->pt && 1219 firstImage->pt != stObj->pt && 1220 (!stObj->pt || firstImage->pt->last_level >= stObj->pt->last_level)) { 1221 pipe_resource_reference(&stObj->pt, firstImage->pt); 1222 pipe_sampler_view_release(st->pipe, &stObj->sampler_view); 1223 } 1224 1225 /* Find gallium format for the Mesa texture */ 1226 firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1227 1228 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */ 1229 { 1230 GLuint width, height, depth; 1231 if (!guess_base_level_size(stObj->base.Target, 1232 firstImage->base.Width2, 1233 firstImage->base.Height2, 1234 firstImage->base.Depth2, 1235 firstImage->base.Level, 1236 &width, &height, &depth)) { 1237 width = stObj->width0; 1238 height = stObj->height0; 1239 depth = stObj->depth0; 1240 } 1241 /* convert GL dims to Gallium dims */ 1242 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth, 1243 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 1244 } 1245 1246 /* If we already have a gallium texture, check that it matches the texture 1247 * object's format, target, size, num_levels, etc. 1248 */ 1249 if (stObj->pt) { 1250 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1251 !st_sampler_compat_formats(stObj->pt->format, firstImageFormat) || 1252 stObj->pt->last_level < stObj->lastLevel || 1253 stObj->pt->width0 != ptWidth || 1254 stObj->pt->height0 != ptHeight || 1255 stObj->pt->depth0 != ptDepth || 1256 stObj->pt->array_size != ptLayers) 1257 { 1258 /* The gallium texture does not match the Mesa texture so delete the 1259 * gallium texture now. We'll make a new one below. 1260 */ 1261 pipe_resource_reference(&stObj->pt, NULL); 1262 pipe_sampler_view_release(st->pipe, &stObj->sampler_view); 1263 st->dirty.st |= ST_NEW_FRAMEBUFFER; 1264 } 1265 } 1266 1267 /* May need to create a new gallium texture: 1268 */ 1269 if (!stObj->pt) { 1270 GLuint bindings = default_bindings(st, firstImageFormat); 1271 1272 stObj->pt = st_texture_create(st, 1273 gl_target_to_pipe(stObj->base.Target), 1274 firstImageFormat, 1275 stObj->lastLevel, 1276 ptWidth, 1277 ptHeight, 1278 ptDepth, 1279 ptLayers, 1280 bindings); 1281 1282 if (!stObj->pt) { 1283 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1284 return GL_FALSE; 1285 } 1286 } 1287 1288 /* Pull in any images not in the object's texture: 1289 */ 1290 for (face = 0; face < nr_faces; face++) { 1291 GLuint level; 1292 for (level = stObj->base.BaseLevel; level <= stObj->lastLevel; level++) { 1293 struct st_texture_image *stImage = 1294 st_texture_image(stObj->base.Image[face][level]); 1295 1296 /* Need to import images in main memory or held in other textures. 1297 */ 1298 if (stImage && stObj->pt != stImage->pt) { 1299 if (level == 0 || 1300 (stImage->base.Width == u_minify(stObj->width0, level) && 1301 stImage->base.Height == u_minify(stObj->height0, level) && 1302 stImage->base.Depth == u_minify(stObj->depth0, level))) { 1303 /* src image fits expected dest mipmap level size */ 1304 copy_image_data_to_texture(st, stObj, level, stImage); 1305 } 1306 } 1307 } 1308 } 1309 1310 return GL_TRUE; 1311} 1312 1313 1314/** 1315 * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory 1316 * for a whole mipmap stack. 1317 */ 1318static GLboolean 1319st_AllocTextureStorage(struct gl_context *ctx, 1320 struct gl_texture_object *texObj, 1321 GLsizei levels, GLsizei width, 1322 GLsizei height, GLsizei depth) 1323{ 1324 const GLuint numFaces = _mesa_num_tex_faces(texObj->Target); 1325 struct st_context *st = st_context(ctx); 1326 struct st_texture_object *stObj = st_texture_object(texObj); 1327 GLuint ptWidth, ptHeight, ptDepth, ptLayers, bindings; 1328 enum pipe_format fmt; 1329 GLint level; 1330 1331 assert(levels > 0); 1332 1333 /* Save the level=0 dimensions */ 1334 stObj->width0 = width; 1335 stObj->height0 = height; 1336 stObj->depth0 = depth; 1337 stObj->lastLevel = levels - 1; 1338 1339 fmt = st_mesa_format_to_pipe_format(texObj->Image[0][0]->TexFormat); 1340 1341 bindings = default_bindings(st, fmt); 1342 1343 st_gl_texture_dims_to_pipe_dims(texObj->Target, 1344 width, height, depth, 1345 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 1346 1347 stObj->pt = st_texture_create(st, 1348 gl_target_to_pipe(texObj->Target), 1349 fmt, 1350 levels, 1351 ptWidth, 1352 ptHeight, 1353 ptDepth, 1354 ptLayers, 1355 bindings); 1356 if (!stObj->pt) 1357 return GL_FALSE; 1358 1359 /* Set image resource pointers */ 1360 for (level = 0; level < levels; level++) { 1361 GLuint face; 1362 for (face = 0; face < numFaces; face++) { 1363 struct st_texture_image *stImage = 1364 st_texture_image(texObj->Image[face][level]); 1365 pipe_resource_reference(&stImage->pt, stObj->pt); 1366 } 1367 } 1368 1369 return GL_TRUE; 1370} 1371 1372 1373static GLboolean 1374st_TestProxyTexImage(struct gl_context *ctx, GLenum target, 1375 GLint level, gl_format format, 1376 GLint width, GLint height, 1377 GLint depth, GLint border) 1378{ 1379 struct st_context *st = st_context(ctx); 1380 struct pipe_context *pipe = st->pipe; 1381 1382 if (width == 0 || height == 0 || depth == 0) { 1383 /* zero-sized images are legal, and always fit! */ 1384 return GL_TRUE; 1385 } 1386 1387 if (pipe->screen->can_create_resource) { 1388 /* Ask the gallium driver if the texture is too large */ 1389 struct gl_texture_object *texObj = 1390 _mesa_get_current_tex_object(ctx, target); 1391 struct pipe_resource pt; 1392 1393 /* Setup the pipe_resource object 1394 */ 1395 memset(&pt, 0, sizeof(pt)); 1396 1397 pt.target = gl_target_to_pipe(target); 1398 pt.format = st_mesa_format_to_pipe_format(format); 1399 1400 st_gl_texture_dims_to_pipe_dims(target, 1401 width, height, depth, 1402 &pt.width0, &pt.height0, 1403 &pt.depth0, &pt.array_size); 1404 1405 if (level == 0 && (texObj->Sampler.MinFilter == GL_LINEAR || 1406 texObj->Sampler.MinFilter == GL_NEAREST)) { 1407 /* assume just one mipmap level */ 1408 pt.last_level = 0; 1409 } 1410 else { 1411 /* assume a full set of mipmaps */ 1412 pt.last_level = _mesa_logbase2(MAX3(width, height, depth)); 1413 } 1414 1415 return pipe->screen->can_create_resource(pipe->screen, &pt); 1416 } 1417 else { 1418 /* Use core Mesa fallback */ 1419 return _mesa_test_proxy_teximage(ctx, target, level, format, 1420 width, height, depth, border); 1421 } 1422} 1423 1424 1425void 1426st_init_texture_functions(struct dd_function_table *functions) 1427{ 1428 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1429 functions->TexImage = st_TexImage; 1430 functions->TexSubImage = _mesa_store_texsubimage; 1431 functions->CompressedTexSubImage = _mesa_store_compressed_texsubimage; 1432 functions->CopyTexSubImage = st_CopyTexSubImage; 1433 functions->GenerateMipmap = st_generate_mipmap; 1434 1435 functions->GetTexImage = st_GetTexImage; 1436 1437 /* compressed texture functions */ 1438 functions->CompressedTexImage = st_CompressedTexImage; 1439 functions->GetCompressedTexImage = _mesa_get_compressed_teximage; 1440 1441 functions->NewTextureObject = st_NewTextureObject; 1442 functions->NewTextureImage = st_NewTextureImage; 1443 functions->DeleteTextureImage = st_DeleteTextureImage; 1444 functions->DeleteTexture = st_DeleteTextureObject; 1445 functions->AllocTextureImageBuffer = st_AllocTextureImageBuffer; 1446 functions->FreeTextureImageBuffer = st_FreeTextureImageBuffer; 1447 functions->MapTextureImage = st_MapTextureImage; 1448 functions->UnmapTextureImage = st_UnmapTextureImage; 1449 1450 /* XXX Temporary until we can query pipe's texture sizes */ 1451 functions->TestProxyTexImage = st_TestProxyTexImage; 1452 1453 functions->AllocTextureStorage = st_AllocTextureStorage; 1454} 1455