st_cb_texture.c revision f4a93e0665881dd58a95abb6525676bd1cc2e6af
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 return PIPE_TEXTURE_1D; 77 case GL_TEXTURE_2D: 78 case GL_TEXTURE_EXTERNAL_OES: 79 return PIPE_TEXTURE_2D; 80 case GL_TEXTURE_RECTANGLE_NV: 81 return PIPE_TEXTURE_RECT; 82 case GL_TEXTURE_3D: 83 return PIPE_TEXTURE_3D; 84 case GL_TEXTURE_CUBE_MAP_ARB: 85 return PIPE_TEXTURE_CUBE; 86 case GL_TEXTURE_1D_ARRAY_EXT: 87 return PIPE_TEXTURE_1D_ARRAY; 88 case GL_TEXTURE_2D_ARRAY_EXT: 89 return PIPE_TEXTURE_2D_ARRAY; 90 case GL_TEXTURE_BUFFER: 91 return PIPE_BUFFER; 92 default: 93 assert(0); 94 return 0; 95 } 96} 97 98 99/** called via ctx->Driver.NewTextureImage() */ 100static struct gl_texture_image * 101st_NewTextureImage(struct gl_context * ctx) 102{ 103 DBG("%s\n", __FUNCTION__); 104 (void) ctx; 105 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 106} 107 108 109/** called via ctx->Driver.DeleteTextureImage() */ 110static void 111st_DeleteTextureImage(struct gl_context * ctx, struct gl_texture_image *img) 112{ 113 /* nothing special (yet) for st_texture_image */ 114 _mesa_delete_texture_image(ctx, img); 115} 116 117 118/** called via ctx->Driver.NewTextureObject() */ 119static struct gl_texture_object * 120st_NewTextureObject(struct gl_context * ctx, GLuint name, GLenum target) 121{ 122 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 123 124 DBG("%s\n", __FUNCTION__); 125 _mesa_initialize_texture_object(&obj->base, name, target); 126 127 return &obj->base; 128} 129 130/** called via ctx->Driver.DeleteTextureObject() */ 131static void 132st_DeleteTextureObject(struct gl_context *ctx, 133 struct gl_texture_object *texObj) 134{ 135 struct st_context *st = st_context(ctx); 136 struct st_texture_object *stObj = st_texture_object(texObj); 137 if (stObj->pt) 138 pipe_resource_reference(&stObj->pt, NULL); 139 if (stObj->sampler_view) { 140 pipe_sampler_view_release(st->pipe, &stObj->sampler_view); 141 } 142 _mesa_delete_texture_object(ctx, texObj); 143} 144 145 146/** called via ctx->Driver.FreeTextureImageBuffer() */ 147static void 148st_FreeTextureImageBuffer(struct gl_context *ctx, 149 struct gl_texture_image *texImage) 150{ 151 struct st_texture_image *stImage = st_texture_image(texImage); 152 153 DBG("%s\n", __FUNCTION__); 154 155 if (stImage->pt) { 156 pipe_resource_reference(&stImage->pt, NULL); 157 } 158 159 if (stImage->TexData) { 160 _mesa_align_free(stImage->TexData); 161 stImage->TexData = NULL; 162 } 163} 164 165 166/** called via ctx->Driver.MapTextureImage() */ 167static void 168st_MapTextureImage(struct gl_context *ctx, 169 struct gl_texture_image *texImage, 170 GLuint slice, GLuint x, GLuint y, GLuint w, GLuint h, 171 GLbitfield mode, 172 GLubyte **mapOut, GLint *rowStrideOut) 173{ 174 struct st_context *st = st_context(ctx); 175 struct st_texture_image *stImage = st_texture_image(texImage); 176 unsigned pipeMode; 177 GLubyte *map; 178 179 pipeMode = 0x0; 180 if (mode & GL_MAP_READ_BIT) 181 pipeMode |= PIPE_TRANSFER_READ; 182 if (mode & GL_MAP_WRITE_BIT) 183 pipeMode |= PIPE_TRANSFER_WRITE; 184 if (mode & GL_MAP_INVALIDATE_RANGE_BIT) 185 pipeMode |= PIPE_TRANSFER_DISCARD_RANGE; 186 187 map = st_texture_image_map(st, stImage, slice, pipeMode, x, y, w, h); 188 if (map) { 189 *mapOut = map; 190 *rowStrideOut = stImage->transfer->stride; 191 } 192 else { 193 *mapOut = NULL; 194 *rowStrideOut = 0; 195 } 196} 197 198 199/** called via ctx->Driver.UnmapTextureImage() */ 200static void 201st_UnmapTextureImage(struct gl_context *ctx, 202 struct gl_texture_image *texImage, 203 GLuint slice) 204{ 205 struct st_context *st = st_context(ctx); 206 struct st_texture_image *stImage = st_texture_image(texImage); 207 st_texture_image_unmap(st, stImage); 208} 209 210 211/** 212 * Return default texture resource binding bitmask for the given format. 213 */ 214static GLuint 215default_bindings(struct st_context *st, enum pipe_format format) 216{ 217 struct pipe_screen *screen = st->pipe->screen; 218 const unsigned target = PIPE_TEXTURE_2D; 219 unsigned bindings; 220 221 if (util_format_is_depth_or_stencil(format)) 222 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL; 223 else 224 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; 225 226 if (screen->is_format_supported(screen, format, target, 0, bindings)) 227 return bindings; 228 else { 229 /* Try non-sRGB. */ 230 format = util_format_linear(format); 231 232 if (screen->is_format_supported(screen, format, target, 0, bindings)) 233 return bindings; 234 else 235 return PIPE_BIND_SAMPLER_VIEW; 236 } 237} 238 239 240/** Return number of image dimensions (1, 2 or 3) for a texture target. */ 241static GLuint 242get_texture_dims(GLenum target) 243{ 244 switch (target) { 245 case GL_TEXTURE_1D: 246 case GL_TEXTURE_1D_ARRAY_EXT: 247 case GL_TEXTURE_BUFFER: 248 return 1; 249 case GL_TEXTURE_2D: 250 case GL_TEXTURE_CUBE_MAP_ARB: 251 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 252 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 253 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 254 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 255 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 256 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 257 case GL_TEXTURE_RECTANGLE_NV: 258 case GL_TEXTURE_2D_ARRAY_EXT: 259 case GL_TEXTURE_EXTERNAL_OES: 260 return 2; 261 case GL_TEXTURE_3D: 262 return 3; 263 default: 264 assert(0 && "invalid texture target in get_texture_dims()"); 265 return 1; 266 } 267} 268 269 270/** 271 * Given the size of a mipmap image, try to compute the size of the level=0 272 * mipmap image. 273 * 274 * Note that this isn't always accurate for odd-sized, non-POW textures. 275 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81. 276 * 277 * \return GL_TRUE for success, GL_FALSE for failure 278 */ 279static GLboolean 280guess_base_level_size(GLenum target, 281 GLuint width, GLuint height, GLuint depth, GLuint level, 282 GLuint *width0, GLuint *height0, GLuint *depth0) 283{ 284 const GLuint dims = get_texture_dims(target); 285 286 assert(width >= 1); 287 assert(height >= 1); 288 assert(depth >= 1); 289 290 if (level > 0) { 291 /* Depending on the image's size, we can't always make a guess here */ 292 if ((dims >= 1 && width == 1) || 293 (dims >= 2 && height == 1) || 294 (dims >= 3 && depth == 1)) { 295 /* we can't determine the image size at level=0 */ 296 return GL_FALSE; 297 } 298 299 /* grow the image size until we hit level = 0 */ 300 while (level > 0) { 301 if (width > 1) 302 width <<= 1; 303 if (height > 1) 304 height <<= 1; 305 if (depth > 1) 306 depth <<= 1; 307 level--; 308 } 309 } 310 311 *width0 = width; 312 *height0 = height; 313 *depth0 = depth; 314 315 return GL_TRUE; 316} 317 318 319/** 320 * Try to allocate a pipe_resource object for the given st_texture_object. 321 * 322 * We use the given st_texture_image as a clue to determine the size of the 323 * mipmap image at level=0. 324 * 325 * \return GL_TRUE for success, GL_FALSE if out of memory. 326 */ 327static GLboolean 328guess_and_alloc_texture(struct st_context *st, 329 struct st_texture_object *stObj, 330 const struct st_texture_image *stImage) 331{ 332 GLuint lastLevel, width, height, depth; 333 GLuint bindings; 334 GLuint ptWidth, ptHeight, ptDepth, ptLayers; 335 enum pipe_format fmt; 336 337 DBG("%s\n", __FUNCTION__); 338 339 assert(!stObj->pt); 340 341 if (!guess_base_level_size(stObj->base.Target, 342 stImage->base.Width2, 343 stImage->base.Height2, 344 stImage->base.Depth2, 345 stImage->base.Level, 346 &width, &height, &depth)) { 347 /* we can't determine the image size at level=0 */ 348 stObj->width0 = stObj->height0 = stObj->depth0 = 0; 349 /* this is not an out of memory error */ 350 return GL_TRUE; 351 } 352 353 /* At this point, (width x height x depth) is the expected size of 354 * the level=0 mipmap image. 355 */ 356 357 /* Guess a reasonable value for lastLevel. With OpenGL we have no 358 * idea how many mipmap levels will be in a texture until we start 359 * to render with it. Make an educated guess here but be prepared 360 * to re-allocating a texture buffer with space for more (or fewer) 361 * mipmap levels later. 362 */ 363 if ((stObj->base.Sampler.MinFilter == GL_NEAREST || 364 stObj->base.Sampler.MinFilter == GL_LINEAR || 365 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 366 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 367 !stObj->base.GenerateMipmap && 368 stImage->base.Level == 0) { 369 /* only alloc space for a single mipmap level */ 370 lastLevel = 0; 371 } 372 else { 373 /* alloc space for a full mipmap */ 374 GLuint l2width = util_logbase2(width); 375 GLuint l2height = util_logbase2(height); 376 GLuint l2depth = util_logbase2(depth); 377 lastLevel = MAX2(MAX2(l2width, l2height), l2depth); 378 } 379 380 /* Save the level=0 dimensions */ 381 stObj->width0 = width; 382 stObj->height0 = height; 383 stObj->depth0 = depth; 384 385 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat); 386 387 bindings = default_bindings(st, fmt); 388 389 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, 390 width, height, depth, 391 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 392 393 stObj->pt = st_texture_create(st, 394 gl_target_to_pipe(stObj->base.Target), 395 fmt, 396 lastLevel, 397 ptWidth, 398 ptHeight, 399 ptDepth, 400 ptLayers, 401 bindings); 402 403 DBG("%s returning %d\n", __FUNCTION__, (stObj->pt != NULL)); 404 405 return stObj->pt != NULL; 406} 407 408 409/** 410 * Called via ctx->Driver.AllocTextureImageBuffer(). 411 * If the texture object/buffer already has space for the indicated image, 412 * we're done. Otherwise, allocate memory for the new texture image. 413 */ 414static GLboolean 415st_AllocTextureImageBuffer(struct gl_context *ctx, 416 struct gl_texture_image *texImage, 417 gl_format format, GLsizei width, 418 GLsizei height, GLsizei depth) 419{ 420 struct st_context *st = st_context(ctx); 421 struct st_texture_image *stImage = st_texture_image(texImage); 422 struct st_texture_object *stObj = st_texture_object(texImage->TexObject); 423 const GLuint level = texImage->Level; 424 425 DBG("%s\n", __FUNCTION__); 426 427 assert(width > 0); 428 assert(height > 0); 429 assert(depth > 0); 430 assert(!stImage->TexData); 431 assert(!stImage->pt); /* xxx this might be wrong */ 432 433 /* Look if the parent texture object has space for this image */ 434 if (stObj->pt && 435 level <= stObj->pt->last_level && 436 st_texture_match_image(stObj->pt, texImage)) { 437 /* this image will fit in the existing texture object's memory */ 438 pipe_resource_reference(&stImage->pt, stObj->pt); 439 return GL_TRUE; 440 } 441 442 /* The parent texture object does not have space for this image */ 443 444 pipe_resource_reference(&stObj->pt, NULL); 445 pipe_sampler_view_release(st->pipe, &stObj->sampler_view); 446 447 if (!guess_and_alloc_texture(st, stObj, stImage)) { 448 /* Probably out of memory. 449 * Try flushing any pending rendering, then retry. 450 */ 451 st_finish(st); 452 if (!guess_and_alloc_texture(st, stObj, stImage)) { 453 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 454 return GL_FALSE; 455 } 456 } 457 458 if (stObj->pt && 459 st_texture_match_image(stObj->pt, texImage)) { 460 /* The image will live in the object's mipmap memory */ 461 pipe_resource_reference(&stImage->pt, stObj->pt); 462 assert(stImage->pt); 463 return GL_TRUE; 464 } 465 else { 466 /* Create a new, temporary texture/resource/buffer to hold this 467 * one texture image. Note that when we later access this image 468 * (either for mapping or copying) we'll want to always specify 469 * mipmap level=0, even if the image represents some other mipmap 470 * level. 471 */ 472 enum pipe_format format = 473 st_mesa_format_to_pipe_format(texImage->TexFormat); 474 GLuint bindings = default_bindings(st, format); 475 GLuint ptWidth, ptHeight, ptDepth, ptLayers; 476 477 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, 478 width, height, depth, 479 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 480 481 stImage->pt = st_texture_create(st, 482 gl_target_to_pipe(stObj->base.Target), 483 format, 484 0, /* lastLevel */ 485 ptWidth, 486 ptHeight, 487 ptDepth, 488 ptLayers, 489 bindings); 490 return stImage->pt != NULL; 491 } 492} 493 494 495/** 496 * Preparation prior to glTexImage. Basically check the 'surface_based' 497 * field and switch to a "normal" tex image if necessary. 498 */ 499static void 500prep_teximage(struct gl_context *ctx, struct gl_texture_image *texImage, 501 GLint internalFormat, 502 GLint width, GLint height, GLint depth, GLint border, 503 GLenum format, GLenum type) 504{ 505 struct gl_texture_object *texObj = texImage->TexObject; 506 struct st_texture_object *stObj = st_texture_object(texObj); 507 508 /* switch to "normal" */ 509 if (stObj->surface_based) { 510 const GLenum target = texObj->Target; 511 const GLuint level = texImage->Level; 512 gl_format texFormat; 513 514 _mesa_clear_texture_object(ctx, texObj); 515 pipe_resource_reference(&stObj->pt, NULL); 516 517 /* oops, need to init this image again */ 518 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 519 internalFormat, format, type); 520 521 _mesa_init_teximage_fields(ctx, texImage, 522 width, height, depth, border, 523 internalFormat, texFormat); 524 525 stObj->surface_based = GL_FALSE; 526 } 527} 528 529 530static void 531st_TexImage3D(struct gl_context * ctx, 532 struct gl_texture_image *texImage, 533 GLint internalFormat, 534 GLint width, GLint height, GLint depth, 535 GLint border, 536 GLenum format, GLenum type, const void *pixels, 537 const struct gl_pixelstore_attrib *unpack) 538{ 539 prep_teximage(ctx, texImage, internalFormat, width, height, depth, border, 540 format, type); 541 _mesa_store_teximage3d(ctx, texImage, internalFormat, width, height, depth, 542 border, format, type, pixels, unpack); 543} 544 545 546static void 547st_TexImage2D(struct gl_context * ctx, 548 struct gl_texture_image *texImage, 549 GLint internalFormat, 550 GLint width, GLint height, GLint border, 551 GLenum format, GLenum type, const void *pixels, 552 const struct gl_pixelstore_attrib *unpack) 553{ 554 prep_teximage(ctx, texImage, internalFormat, width, height, 1, border, 555 format, type); 556 _mesa_store_teximage2d(ctx, texImage, internalFormat, width, height, 557 border, format, type, pixels, unpack); 558} 559 560 561static void 562st_TexImage1D(struct gl_context * ctx, 563 struct gl_texture_image *texImage, 564 GLint internalFormat, 565 GLint width, GLint border, 566 GLenum format, GLenum type, const void *pixels, 567 const struct gl_pixelstore_attrib *unpack) 568{ 569 prep_teximage(ctx, texImage, internalFormat, width, 1, 1, border, 570 format, type); 571 _mesa_store_teximage1d(ctx, texImage, internalFormat, width, 572 border, format, type, pixels, unpack); 573} 574 575 576static void 577st_CompressedTexImage2D(struct gl_context *ctx, 578 struct gl_texture_image *texImage, 579 GLint internalFormat, 580 GLint width, GLint height, GLint border, 581 GLsizei imageSize, const GLvoid *data) 582{ 583 prep_teximage(ctx, texImage, internalFormat, width, 1, 1, border, 584 GL_NONE, GL_NONE); 585 _mesa_store_compressed_teximage2d(ctx, texImage, internalFormat, width, 586 height, border, imageSize, data); 587} 588 589 590 591/** 592 * glGetTexImage() helper: decompress a compressed texture by rendering 593 * a textured quad. Store the results in the user's buffer. 594 */ 595static void 596decompress_with_blit(struct gl_context * ctx, 597 GLenum format, GLenum type, GLvoid *pixels, 598 struct gl_texture_image *texImage) 599{ 600 struct st_context *st = st_context(ctx); 601 struct pipe_context *pipe = st->pipe; 602 struct st_texture_image *stImage = st_texture_image(texImage); 603 struct st_texture_object *stObj = st_texture_object(texImage->TexObject); 604 struct pipe_sampler_view *src_view; 605 const GLuint width = texImage->Width; 606 const GLuint height = texImage->Height; 607 struct pipe_surface *dst_surface; 608 struct pipe_resource *dst_texture; 609 struct pipe_transfer *tex_xfer; 610 unsigned bind = (PIPE_BIND_RENDER_TARGET | /* util_blit may choose to render */ 611 PIPE_BIND_TRANSFER_READ); 612 613 /* create temp / dest surface */ 614 if (!util_create_rgba_surface(pipe, width, height, bind, 615 &dst_texture, &dst_surface)) { 616 _mesa_problem(ctx, "util_create_rgba_surface() failed " 617 "in decompress_with_blit()"); 618 return; 619 } 620 621 /* Disable conditional rendering. */ 622 if (st->render_condition) { 623 pipe->render_condition(pipe, NULL, 0); 624 } 625 626 /* Create sampler view that limits fetches to the source mipmap level */ 627 { 628 struct pipe_sampler_view sv_temp; 629 630 u_sampler_view_default_template(&sv_temp, stObj->pt, stObj->pt->format); 631 632 sv_temp.u.tex.first_level = 633 sv_temp.u.tex.last_level = texImage->Level; 634 635 src_view = pipe->create_sampler_view(pipe, stObj->pt, &sv_temp); 636 if (!src_view) { 637 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage"); 638 return; 639 } 640 } 641 642 /* blit/render/decompress */ 643 util_blit_pixels_tex(st->blit, 644 src_view, /* pipe_resource (src) */ 645 0, 0, /* src x0, y0 */ 646 width, height, /* src x1, y1 */ 647 dst_surface, /* pipe_surface (dst) */ 648 0, 0, /* dst x0, y0 */ 649 width, height, /* dst x1, y1 */ 650 0.0, /* z */ 651 PIPE_TEX_MIPFILTER_NEAREST); 652 653 /* Restore conditional rendering state. */ 654 if (st->render_condition) { 655 pipe->render_condition(pipe, st->render_condition, 656 st->condition_mode); 657 } 658 659 /* map the dst_surface so we can read from it */ 660 tex_xfer = pipe_get_transfer(pipe, 661 dst_texture, 0, 0, 662 PIPE_TRANSFER_READ, 663 0, 0, width, height); 664 665 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 666 667 /* copy/pack data into user buffer */ 668 if (_mesa_format_matches_format_and_type(stImage->base.TexFormat, 669 format, type, 670 ctx->Pack.SwapBytes)) { 671 /* memcpy */ 672 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); 673 ubyte *map = pipe_transfer_map(pipe, tex_xfer); 674 GLuint row; 675 for (row = 0; row < height; row++) { 676 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 677 height, format, type, row, 0); 678 memcpy(dest, map, bytesPerRow); 679 map += tex_xfer->stride; 680 } 681 pipe_transfer_unmap(pipe, tex_xfer); 682 } 683 else { 684 /* format translation via floats */ 685 GLuint row; 686 enum pipe_format pformat = util_format_linear(dst_texture->format); 687 GLfloat *rgba; 688 689 rgba = (GLfloat *) malloc(width * 4 * sizeof(GLfloat)); 690 if (!rgba) { 691 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()"); 692 goto end; 693 } 694 695 for (row = 0; row < height; row++) { 696 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 697 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 698 height, format, type, row, 0); 699 700 if (ST_DEBUG & DEBUG_FALLBACK) 701 debug_printf("%s: fallback format translation\n", __FUNCTION__); 702 703 /* get float[4] rgba row from surface */ 704 pipe_get_tile_rgba_format(pipe, tex_xfer, 0, row, width, 1, 705 pformat, rgba); 706 707 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 708 type, dest, &ctx->Pack, transferOps); 709 } 710 711 free(rgba); 712 } 713 714end: 715 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 716 717 pipe->transfer_destroy(pipe, tex_xfer); 718 719 /* destroy the temp / dest surface */ 720 util_destroy_rgba_surface(dst_texture, dst_surface); 721 722 pipe_sampler_view_release(pipe, &src_view); 723} 724 725 726 727/** 728 * Called via ctx->Driver.GetTexImage() 729 */ 730static void 731st_GetTexImage(struct gl_context * ctx, 732 GLenum format, GLenum type, GLvoid * pixels, 733 struct gl_texture_image *texImage) 734{ 735 struct st_texture_image *stImage = st_texture_image(texImage); 736 737 if (stImage->pt && util_format_is_s3tc(stImage->pt->format)) { 738 /* Need to decompress the texture. 739 * We'll do this by rendering a textured quad (which is hopefully 740 * faster than using the fallback code in texcompress.c). 741 * Note that we only expect RGBA formats (no Z/depth formats). 742 */ 743 decompress_with_blit(ctx, format, type, pixels, texImage); 744 } 745 else { 746 _mesa_get_teximage(ctx, format, type, pixels, texImage); 747 } 748} 749 750 751/** 752 * Do a CopyTexSubImage operation using a read transfer from the source, 753 * a write transfer to the destination and get_tile()/put_tile() to access 754 * the pixels/texels. 755 * 756 * Note: srcY=0=TOP of renderbuffer 757 */ 758static void 759fallback_copy_texsubimage(struct gl_context *ctx, 760 struct st_renderbuffer *strb, 761 struct st_texture_image *stImage, 762 GLenum baseFormat, 763 GLint destX, GLint destY, GLint destZ, 764 GLint srcX, GLint srcY, 765 GLsizei width, GLsizei height) 766{ 767 struct st_context *st = st_context(ctx); 768 struct pipe_context *pipe = st->pipe; 769 struct pipe_transfer *src_trans; 770 GLvoid *texDest; 771 enum pipe_transfer_usage transfer_usage; 772 773 if (ST_DEBUG & DEBUG_FALLBACK) 774 debug_printf("%s: fallback processing\n", __FUNCTION__); 775 776 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 777 srcY = strb->Base.Height - srcY - height; 778 } 779 780 src_trans = pipe_get_transfer(pipe, 781 strb->texture, 782 strb->rtt_level, 783 strb->rtt_face + strb->rtt_slice, 784 PIPE_TRANSFER_READ, 785 srcX, srcY, 786 width, height); 787 788 if ((baseFormat == GL_DEPTH_COMPONENT || 789 baseFormat == GL_DEPTH_STENCIL) && 790 util_format_is_depth_and_stencil(stImage->pt->format)) 791 transfer_usage = PIPE_TRANSFER_READ_WRITE; 792 else 793 transfer_usage = PIPE_TRANSFER_WRITE; 794 795 /* XXX this used to ignore destZ param */ 796 texDest = st_texture_image_map(st, stImage, destZ, transfer_usage, 797 destX, destY, width, height); 798 799 if (baseFormat == GL_DEPTH_COMPONENT || 800 baseFormat == GL_DEPTH_STENCIL) { 801 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 802 ctx->Pixel.DepthBias != 0.0F); 803 GLint row, yStep; 804 uint *data; 805 806 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 807 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 808 srcY = height - 1; 809 yStep = -1; 810 } 811 else { 812 srcY = 0; 813 yStep = 1; 814 } 815 816 data = (uint *) malloc(width * sizeof(uint)); 817 818 if (data) { 819 /* To avoid a large temp memory allocation, do copy row by row */ 820 for (row = 0; row < height; row++, srcY += yStep) { 821 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data); 822 if (scaleOrBias) { 823 _mesa_scale_and_bias_depth_uint(ctx, width, data); 824 } 825 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data); 826 } 827 } 828 else { 829 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage()"); 830 } 831 832 free(data); 833 } 834 else { 835 /* RGBA format */ 836 GLfloat *tempSrc = 837 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); 838 839 if (tempSrc && texDest) { 840 const GLint dims = 2; 841 const GLint dstRowStride = stImage->transfer->stride; 842 struct gl_texture_image *texImage = &stImage->base; 843 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 844 845 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 846 unpack.Invert = GL_TRUE; 847 } 848 849 /* get float/RGBA image from framebuffer */ 850 /* XXX this usually involves a lot of int/float conversion. 851 * try to avoid that someday. 852 */ 853 pipe_get_tile_rgba_format(pipe, src_trans, 0, 0, width, height, 854 util_format_linear(strb->texture->format), 855 tempSrc); 856 857 /* Store into texture memory. 858 * Note that this does some special things such as pixel transfer 859 * ops and format conversion. In particular, if the dest tex format 860 * is actually RGBA but the user created the texture as GL_RGB we 861 * need to fill-in/override the alpha channel with 1.0. 862 */ 863 _mesa_texstore(ctx, dims, 864 texImage->_BaseFormat, 865 texImage->TexFormat, 866 dstRowStride, 867 (GLubyte **) &texDest, 868 width, height, 1, 869 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 870 &unpack); 871 } 872 else { 873 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 874 } 875 876 if (tempSrc) 877 free(tempSrc); 878 } 879 880 st_texture_image_unmap(st, stImage); 881 pipe->transfer_destroy(pipe, src_trans); 882} 883 884 885 886/** 887 * If the format of the src renderbuffer and the format of the dest 888 * texture are compatible (in terms of blitting), return a TGSI writemask 889 * to be used during the blit. 890 * If the src/dest are incompatible, return 0. 891 */ 892static unsigned 893compatible_src_dst_formats(struct gl_context *ctx, 894 const struct gl_renderbuffer *src, 895 const struct gl_texture_image *dst) 896{ 897 /* Get logical base formats for the src and dest. 898 * That is, use the user-requested formats and not the actual, device- 899 * chosen formats. 900 * For example, the user may have requested an A8 texture but the 901 * driver may actually be using an RGBA texture format. When we 902 * copy/blit to that texture, we only want to copy the Alpha channel 903 * and not the RGB channels. 904 * 905 * Similarly, when the src FBO was created an RGB format may have been 906 * requested but the driver actually chose an RGBA format. In that case, 907 * we don't want to copy the undefined Alpha channel to the dest texture 908 * (it should be 1.0). 909 */ 910 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat); 911 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat); 912 913 /** 914 * XXX when we have red-only and red/green renderbuffers we'll need 915 * to add more cases here (or implement a general-purpose routine that 916 * queries the existance of the R,G,B,A channels in the src and dest). 917 */ 918 if (srcFormat == dstFormat) { 919 /* This is the same as matching_base_formats, which should 920 * always pass, as it did previously. 921 */ 922 return TGSI_WRITEMASK_XYZW; 923 } 924 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) { 925 /* Make sure that A in the dest is 1. The actual src format 926 * may be RGBA and have undefined A values. 927 */ 928 return TGSI_WRITEMASK_XYZ; 929 } 930 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) { 931 /* Make sure that A in the dest is 1. The actual dst format 932 * may be RGBA and will need A=1 to provide proper alpha values 933 * when sampled later. 934 */ 935 return TGSI_WRITEMASK_XYZ; 936 } 937 else { 938 if (ST_DEBUG & DEBUG_FALLBACK) 939 debug_printf("%s failed for src %s, dst %s\n", 940 __FUNCTION__, 941 _mesa_lookup_enum_by_nr(srcFormat), 942 _mesa_lookup_enum_by_nr(dstFormat)); 943 944 /* Otherwise fail. 945 */ 946 return 0; 947 } 948} 949 950 951 952/** 953 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 954 * Note that the region to copy has already been clipped so we know we 955 * won't read from outside the source renderbuffer's bounds. 956 * 957 * Note: srcY=0=Bottom of renderbuffer (GL convention) 958 */ 959static void 960st_copy_texsubimage(struct gl_context *ctx, 961 struct gl_texture_image *texImage, 962 GLint destX, GLint destY, GLint destZ, 963 struct gl_renderbuffer *rb, 964 GLint srcX, GLint srcY, 965 GLsizei width, GLsizei height) 966{ 967 struct st_texture_image *stImage = st_texture_image(texImage); 968 const GLenum texBaseFormat = texImage->_BaseFormat; 969 struct gl_framebuffer *fb = ctx->ReadBuffer; 970 struct st_renderbuffer *strb; 971 struct st_context *st = st_context(ctx); 972 struct pipe_context *pipe = st->pipe; 973 struct pipe_screen *screen = pipe->screen; 974 enum pipe_format dest_format, src_format; 975 GLboolean matching_base_formats; 976 GLuint format_writemask, sample_count; 977 struct pipe_surface *dest_surface = NULL; 978 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 979 struct pipe_surface surf_tmpl; 980 unsigned int dst_usage; 981 GLint srcY0, srcY1; 982 983 /* make sure finalize_textures has been called? 984 */ 985 if (0) st_validate_state(st); 986 987 /* determine if copying depth or color data */ 988 if (texBaseFormat == GL_DEPTH_COMPONENT || 989 texBaseFormat == GL_DEPTH_STENCIL) { 990 strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer); 991 } 992 else { 993 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 994 strb = st_renderbuffer(fb->_ColorReadBuffer); 995 } 996 997 if (!strb || !strb->surface || !stImage->pt) { 998 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 999 return; 1000 } 1001 1002 sample_count = strb->surface->texture->nr_samples; 1003 /* I believe this would be legal, presumably would need to do a resolve 1004 for color, and for depth/stencil spec says to just use one of the 1005 depth/stencil samples per pixel? Need some transfer clarifications. */ 1006 assert(sample_count < 2); 1007 1008 assert(strb); 1009 assert(strb->surface); 1010 assert(stImage->pt); 1011 1012 src_format = strb->surface->format; 1013 dest_format = stImage->pt->format; 1014 1015 /* 1016 * Determine if the src framebuffer and dest texture have the same 1017 * base format. We need this to detect a case such as the framebuffer 1018 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1019 * texture format stores RGBA we need to set A=1 (overriding the 1020 * framebuffer's alpha values). We can't do that with the blit or 1021 * textured-quad paths. 1022 */ 1023 matching_base_formats = 1024 (_mesa_get_format_base_format(strb->Base.Format) == 1025 _mesa_get_format_base_format(texImage->TexFormat)); 1026 1027 if (ctx->_ImageTransferState) { 1028 goto fallback; 1029 } 1030 1031 if (matching_base_formats && 1032 src_format == dest_format && 1033 !do_flip) { 1034 /* use surface_copy() / blit */ 1035 struct pipe_box src_box; 1036 u_box_2d_zslice(srcX, srcY, strb->surface->u.tex.first_layer, 1037 width, height, &src_box); 1038 1039 /* for resource_copy_region(), y=0=top, always */ 1040 pipe->resource_copy_region(pipe, 1041 /* dest */ 1042 stImage->pt, 1043 stImage->base.Level, 1044 destX, destY, destZ + stImage->base.Face, 1045 /* src */ 1046 strb->texture, 1047 strb->surface->u.tex.level, 1048 &src_box); 1049 return; 1050 } 1051 1052 if (texBaseFormat == GL_DEPTH_STENCIL) { 1053 goto fallback; 1054 } 1055 1056 if (texBaseFormat == GL_DEPTH_COMPONENT) { 1057 format_writemask = TGSI_WRITEMASK_XYZW; 1058 dst_usage = PIPE_BIND_DEPTH_STENCIL; 1059 } 1060 else { 1061 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage); 1062 dst_usage = PIPE_BIND_RENDER_TARGET; 1063 } 1064 1065 if (!format_writemask || 1066 !screen->is_format_supported(screen, src_format, 1067 PIPE_TEXTURE_2D, sample_count, 1068 PIPE_BIND_SAMPLER_VIEW) || 1069 !screen->is_format_supported(screen, dest_format, 1070 PIPE_TEXTURE_2D, 0, 1071 dst_usage)) { 1072 goto fallback; 1073 } 1074 1075 if (do_flip) { 1076 srcY1 = strb->Base.Height - srcY - height; 1077 srcY0 = srcY1 + height; 1078 } 1079 else { 1080 srcY0 = srcY; 1081 srcY1 = srcY0 + height; 1082 } 1083 1084 /* Disable conditional rendering. */ 1085 if (st->render_condition) { 1086 pipe->render_condition(pipe, NULL, 0); 1087 } 1088 1089 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 1090 surf_tmpl.format = util_format_linear(stImage->pt->format); 1091 surf_tmpl.usage = dst_usage; 1092 surf_tmpl.u.tex.level = stImage->base.Level; 1093 surf_tmpl.u.tex.first_layer = stImage->base.Face + destZ; 1094 surf_tmpl.u.tex.last_layer = stImage->base.Face + destZ; 1095 1096 dest_surface = pipe->create_surface(pipe, stImage->pt, 1097 &surf_tmpl); 1098 util_blit_pixels_writemask(st->blit, 1099 strb->texture, 1100 strb->surface->u.tex.level, 1101 srcX, srcY0, 1102 srcX + width, srcY1, 1103 strb->surface->u.tex.first_layer, 1104 dest_surface, 1105 destX, destY, 1106 destX + width, destY + height, 1107 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1108 format_writemask); 1109 pipe_surface_reference(&dest_surface, NULL); 1110 1111 /* Restore conditional rendering state. */ 1112 if (st->render_condition) { 1113 pipe->render_condition(pipe, st->render_condition, 1114 st->condition_mode); 1115 } 1116 1117 return; 1118 1119fallback: 1120 /* software fallback */ 1121 fallback_copy_texsubimage(ctx, 1122 strb, stImage, texBaseFormat, 1123 destX, destY, destZ, 1124 srcX, srcY, width, height); 1125} 1126 1127 1128 1129static void 1130st_CopyTexSubImage1D(struct gl_context *ctx, 1131 struct gl_texture_image *texImage, 1132 GLint xoffset, 1133 struct gl_renderbuffer *rb, 1134 GLint x, GLint y, GLsizei width) 1135{ 1136 const GLint yoffset = 0, zoffset = 0; 1137 const GLsizei height = 1; 1138 st_copy_texsubimage(ctx, texImage, 1139 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1140 rb, x, y, width, height); /* src X, Y, size */ 1141} 1142 1143 1144static void 1145st_CopyTexSubImage2D(struct gl_context *ctx, 1146 struct gl_texture_image *texImage, 1147 GLint xoffset, GLint yoffset, 1148 struct gl_renderbuffer *rb, 1149 GLint x, GLint y, GLsizei width, GLsizei height) 1150{ 1151 const GLint zoffset = 0; 1152 st_copy_texsubimage(ctx, texImage, 1153 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1154 rb, x, y, width, height); /* src X, Y, size */ 1155} 1156 1157 1158static void 1159st_CopyTexSubImage3D(struct gl_context *ctx, 1160 struct gl_texture_image *texImage, 1161 GLint xoffset, GLint yoffset, GLint zoffset, 1162 struct gl_renderbuffer *rb, 1163 GLint x, GLint y, GLsizei width, GLsizei height) 1164{ 1165 st_copy_texsubimage(ctx, texImage, 1166 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1167 rb, x, y, width, height); /* src X, Y, size */ 1168} 1169 1170 1171/** 1172 * Copy image data from stImage into the texture object 'stObj' at level 1173 * 'dstLevel'. 1174 */ 1175static void 1176copy_image_data_to_texture(struct st_context *st, 1177 struct st_texture_object *stObj, 1178 GLuint dstLevel, 1179 struct st_texture_image *stImage) 1180{ 1181 /* debug checks */ 1182 { 1183 const struct gl_texture_image *dstImage = 1184 stObj->base.Image[stImage->base.Face][dstLevel]; 1185 assert(dstImage); 1186 assert(dstImage->Width == stImage->base.Width); 1187 assert(dstImage->Height == stImage->base.Height); 1188 assert(dstImage->Depth == stImage->base.Depth); 1189 } 1190 1191 if (stImage->pt) { 1192 /* Copy potentially with the blitter: 1193 */ 1194 GLuint src_level; 1195 if (stImage->pt != stObj->pt) 1196 src_level = 0; 1197 else 1198 src_level = stImage->base.Level; 1199 1200 st_texture_image_copy(st->pipe, 1201 stObj->pt, dstLevel, /* dest texture, level */ 1202 stImage->pt, src_level, /* src texture, level */ 1203 stImage->base.Face); 1204 1205 pipe_resource_reference(&stImage->pt, NULL); 1206 } 1207 else if (stImage->TexData) { 1208 /* Copy from malloc'd memory */ 1209 /* XXX this should be re-examined/tested with a compressed format */ 1210 GLuint blockSize = util_format_get_blocksize(stObj->pt->format); 1211 GLuint srcRowStride = stImage->base.Width * blockSize; 1212 GLuint srcSliceStride = stImage->base.Height * srcRowStride; 1213 st_texture_image_data(st, 1214 stObj->pt, 1215 stImage->base.Face, 1216 dstLevel, 1217 stImage->TexData, 1218 srcRowStride, 1219 srcSliceStride); 1220 _mesa_align_free(stImage->TexData); 1221 stImage->TexData = NULL; 1222 } 1223 1224 pipe_resource_reference(&stImage->pt, stObj->pt); 1225} 1226 1227 1228/** 1229 * Called during state validation. When this function is finished, 1230 * the texture object should be ready for rendering. 1231 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1232 */ 1233GLboolean 1234st_finalize_texture(struct gl_context *ctx, 1235 struct pipe_context *pipe, 1236 struct gl_texture_object *tObj) 1237{ 1238 struct st_context *st = st_context(ctx); 1239 struct st_texture_object *stObj = st_texture_object(tObj); 1240 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1241 GLuint face; 1242 struct st_texture_image *firstImage; 1243 enum pipe_format firstImageFormat; 1244 GLuint ptWidth, ptHeight, ptDepth, ptLayers; 1245 1246 if (_mesa_is_texture_complete(tObj, &tObj->Sampler)) { 1247 /* The texture is complete and we know exactly how many mipmap levels 1248 * are present/needed. This is conditional because we may be called 1249 * from the st_generate_mipmap() function when the texture object is 1250 * incomplete. In that case, we'll have set stObj->lastLevel before 1251 * we get here. 1252 */ 1253 if (stObj->base.Sampler.MinFilter == GL_LINEAR || 1254 stObj->base.Sampler.MinFilter == GL_NEAREST) 1255 stObj->lastLevel = stObj->base.BaseLevel; 1256 else 1257 stObj->lastLevel = stObj->base._MaxLevel; 1258 } 1259 1260 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1261 assert(firstImage); 1262 1263 /* If both firstImage and stObj point to a texture which can contain 1264 * all active images, favour firstImage. Note that because of the 1265 * completeness requirement, we know that the image dimensions 1266 * will match. 1267 */ 1268 if (firstImage->pt && 1269 firstImage->pt != stObj->pt && 1270 (!stObj->pt || firstImage->pt->last_level >= stObj->pt->last_level)) { 1271 pipe_resource_reference(&stObj->pt, firstImage->pt); 1272 pipe_sampler_view_release(st->pipe, &stObj->sampler_view); 1273 } 1274 1275 /* Find gallium format for the Mesa texture */ 1276 firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat); 1277 1278 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */ 1279 { 1280 GLuint width, height, depth; 1281 if (!guess_base_level_size(stObj->base.Target, 1282 firstImage->base.Width2, 1283 firstImage->base.Height2, 1284 firstImage->base.Depth2, 1285 firstImage->base.Level, 1286 &width, &height, &depth)) { 1287 width = stObj->width0; 1288 height = stObj->height0; 1289 depth = stObj->depth0; 1290 } 1291 /* convert GL dims to Gallium dims */ 1292 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth, 1293 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 1294 } 1295 1296 /* If we already have a gallium texture, check that it matches the texture 1297 * object's format, target, size, num_levels, etc. 1298 */ 1299 if (stObj->pt) { 1300 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1301 !st_sampler_compat_formats(stObj->pt->format, firstImageFormat) || 1302 stObj->pt->last_level < stObj->lastLevel || 1303 stObj->pt->width0 != ptWidth || 1304 stObj->pt->height0 != ptHeight || 1305 stObj->pt->depth0 != ptDepth || 1306 stObj->pt->array_size != ptLayers) 1307 { 1308 /* The gallium texture does not match the Mesa texture so delete the 1309 * gallium texture now. We'll make a new one below. 1310 */ 1311 pipe_resource_reference(&stObj->pt, NULL); 1312 pipe_sampler_view_release(st->pipe, &stObj->sampler_view); 1313 st->dirty.st |= ST_NEW_FRAMEBUFFER; 1314 } 1315 } 1316 1317 /* May need to create a new gallium texture: 1318 */ 1319 if (!stObj->pt) { 1320 GLuint bindings = default_bindings(st, firstImageFormat); 1321 1322 stObj->pt = st_texture_create(st, 1323 gl_target_to_pipe(stObj->base.Target), 1324 firstImageFormat, 1325 stObj->lastLevel, 1326 ptWidth, 1327 ptHeight, 1328 ptDepth, 1329 ptLayers, 1330 bindings); 1331 1332 if (!stObj->pt) { 1333 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1334 return GL_FALSE; 1335 } 1336 } 1337 1338 /* Pull in any images not in the object's texture: 1339 */ 1340 for (face = 0; face < nr_faces; face++) { 1341 GLuint level; 1342 for (level = stObj->base.BaseLevel; level <= stObj->lastLevel; level++) { 1343 struct st_texture_image *stImage = 1344 st_texture_image(stObj->base.Image[face][level]); 1345 1346 /* Need to import images in main memory or held in other textures. 1347 */ 1348 if (stImage && stObj->pt != stImage->pt) { 1349 if (level == 0 || 1350 (stImage->base.Width == u_minify(stObj->width0, level) && 1351 stImage->base.Height == u_minify(stObj->height0, level) && 1352 stImage->base.Depth == u_minify(stObj->depth0, level))) { 1353 /* src image fits expected dest mipmap level size */ 1354 copy_image_data_to_texture(st, stObj, level, stImage); 1355 } 1356 } 1357 } 1358 } 1359 1360 return GL_TRUE; 1361} 1362 1363 1364/** 1365 * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory 1366 * for a whole mipmap stack. 1367 */ 1368static GLboolean 1369st_AllocTextureStorage(struct gl_context *ctx, 1370 struct gl_texture_object *texObj, 1371 GLsizei levels, GLsizei width, 1372 GLsizei height, GLsizei depth) 1373{ 1374 const GLuint numFaces = (texObj->Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1375 struct st_context *st = st_context(ctx); 1376 struct st_texture_object *stObj = st_texture_object(texObj); 1377 GLuint ptWidth, ptHeight, ptDepth, ptLayers, bindings; 1378 enum pipe_format fmt; 1379 GLint level; 1380 1381 assert(levels > 0); 1382 1383 /* Save the level=0 dimensions */ 1384 stObj->width0 = width; 1385 stObj->height0 = height; 1386 stObj->depth0 = depth; 1387 stObj->lastLevel = levels - 1; 1388 1389 fmt = st_mesa_format_to_pipe_format(texObj->Image[0][0]->TexFormat); 1390 1391 bindings = default_bindings(st, fmt); 1392 1393 st_gl_texture_dims_to_pipe_dims(texObj->Target, 1394 width, height, depth, 1395 &ptWidth, &ptHeight, &ptDepth, &ptLayers); 1396 1397 stObj->pt = st_texture_create(st, 1398 gl_target_to_pipe(texObj->Target), 1399 fmt, 1400 levels, 1401 ptWidth, 1402 ptHeight, 1403 ptDepth, 1404 ptLayers, 1405 bindings); 1406 if (!stObj->pt) 1407 return GL_FALSE; 1408 1409 /* Set image resource pointers */ 1410 for (level = 0; level < levels; level++) { 1411 GLuint face; 1412 for (face = 0; face < numFaces; face++) { 1413 struct st_texture_image *stImage = 1414 st_texture_image(texObj->Image[face][level]); 1415 pipe_resource_reference(&stImage->pt, stObj->pt); 1416 } 1417 } 1418 1419 return GL_TRUE; 1420} 1421 1422 1423 1424void 1425st_init_texture_functions(struct dd_function_table *functions) 1426{ 1427 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1428 functions->TexImage1D = st_TexImage1D; 1429 functions->TexImage2D = st_TexImage2D; 1430 functions->TexImage3D = st_TexImage3D; 1431 functions->TexSubImage1D = _mesa_store_texsubimage1d; 1432 functions->TexSubImage2D = _mesa_store_texsubimage2d; 1433 functions->TexSubImage3D = _mesa_store_texsubimage3d; 1434 functions->CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d; 1435 functions->CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d; 1436 functions->CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d; 1437 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1438 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1439 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1440 functions->GenerateMipmap = st_generate_mipmap; 1441 1442 functions->GetTexImage = st_GetTexImage; 1443 1444 /* compressed texture functions */ 1445 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1446 functions->GetCompressedTexImage = _mesa_get_compressed_teximage; 1447 1448 functions->NewTextureObject = st_NewTextureObject; 1449 functions->NewTextureImage = st_NewTextureImage; 1450 functions->DeleteTextureImage = st_DeleteTextureImage; 1451 functions->DeleteTexture = st_DeleteTextureObject; 1452 functions->AllocTextureImageBuffer = st_AllocTextureImageBuffer; 1453 functions->FreeTextureImageBuffer = st_FreeTextureImageBuffer; 1454 functions->MapTextureImage = st_MapTextureImage; 1455 functions->UnmapTextureImage = st_UnmapTextureImage; 1456 1457 /* XXX Temporary until we can query pipe's texture sizes */ 1458 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1459 1460 functions->AllocTextureStorage = st_AllocTextureStorage; 1461} 1462