src/mesa/drivers/dri/i965/intel_tex_image.c

   1
   2 #include "main/macros.h"
   3 #include "main/mtypes.h"
   4 #include "main/enums.h"
   5 #include "main/bufferobj.h"
   6 #include "main/context.h"
   7 #include "main/formats.h"
   8 #include "main/glformats.h"
   9 #include "main/image.h"
  10 #include "main/pbo.h"
  11 #include "main/renderbuffer.h"
  12 #include "main/texcompress.h"
  13 #include "main/texgetimage.h"
  14 #include "main/texobj.h"
  15 #include "main/teximage.h"
  16 #include "main/texstore.h"
  17
  18 #include "drivers/common/meta.h"
  19
  20 #include "intel_mipmap_tree.h"
  21 #include "intel_buffer_objects.h"
  22 #include "intel_batchbuffer.h"
  23 #include "intel_tex.h"
  24 #include "intel_blit.h"
  25 #include "intel_fbo.h"
  26 #include "intel_image.h"
  27 #include "intel_tiled_memcpy.h"
  28 #include "brw_context.h"
  29
  30 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  31
  32 /* Make sure one doesn't end up shrinking base level zero unnecessarily.
  33  * Determining the base level dimension by shifting higher level dimension
  34  * ends up in off-by-one value in case base level has NPOT size (for example,
  35  * 293 != 146 << 1).
  36  * Choose the original base level dimension when shifted dimensions agree.
  37  * Otherwise assume real resize is intended and use the new shifted value.
  38  */
  39 static unsigned
  40 get_base_dim(unsigned old_base_dim, unsigned new_level_dim, unsigned level)
  41 {
  42    const unsigned old_level_dim = old_base_dim >> level;
  43    const unsigned new_base_dim = new_level_dim << level;
  44
  45    return old_level_dim == new_level_dim ? old_base_dim : new_base_dim;
  46 }
  47
  48 /* Work back from the specified level of the image to the baselevel and create a
  49  * miptree of that size.
  50  */
  51 struct intel_mipmap_tree *
  52 intel_miptree_create_for_teximage(struct brw_context *brw,
  53                                   struct intel_texture_object *intelObj,
  54                                   struct intel_texture_image *intelImage,
  55                                   uint32_t layout_flags)
  56 {
  57    GLuint lastLevel;
  58    int width, height, depth;
  59    unsigned old_width = 0, old_height = 0, old_depth = 0;
  60    const struct intel_mipmap_tree *old_mt = intelObj->mt;
  61    const unsigned level = intelImage->base.Base.Level;
  62
  63    intel_get_image_dims(&intelImage->base.Base, &width, &height, &depth);
  64
  65    if (old_mt) {
  66       old_width = old_mt->surf.logical_level0_px.width;
  67       old_height = old_mt->surf.logical_level0_px.height;
  68       old_depth = old_mt->surf.dim == ISL_SURF_DIM_3D ?
  69                      old_mt->surf.logical_level0_px.depth :
  70                      old_mt->surf.logical_level0_px.array_len;
  71    }
  72
  73    DBG("%s\n", __func__);
  74
  75    /* Figure out image dimensions at start level. */
  76    switch(intelObj->base.Target) {
  77    case GL_TEXTURE_2D_MULTISAMPLE:
  78    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
  79    case GL_TEXTURE_RECTANGLE:
  80    case GL_TEXTURE_EXTERNAL_OES:
  81       assert(level == 0);
  82       break;
  83    case GL_TEXTURE_3D:
  84       depth = old_mt ? get_base_dim(old_depth, depth, level) :
  85                        depth << level;
  86       /* Fall through */
  87    case GL_TEXTURE_2D:
  88    case GL_TEXTURE_2D_ARRAY:
  89    case GL_TEXTURE_CUBE_MAP:
  90    case GL_TEXTURE_CUBE_MAP_ARRAY:
  91       height = old_mt ? get_base_dim(old_height, height, level) :
  92                         height << level;
  93       /* Fall through */
  94    case GL_TEXTURE_1D:
  95    case GL_TEXTURE_1D_ARRAY:
  96       width = old_mt ? get_base_dim(old_width, width, level) :
  97                        width << level;
  98       break;
  99    default:
 100       unreachable("Unexpected target");
 101    }
 102
 103    /* Guess a reasonable value for lastLevel.  This is probably going
 104     * to be wrong fairly often and might mean that we have to look at
 105     * resizable buffers, or require that buffers implement lazy
 106     * pagetable arrangements.
 107     */
 108    if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
 109         intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
 110        intelImage->base.Base.Level == 0 &&
 111        !intelObj->base.GenerateMipmap) {
 112       lastLevel = 0;
 113    } else {
 114       lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
 115                                                width, height, depth) - 1;
 116    }
 117
 118    return intel_miptree_create(brw,
 119                                intelObj->base.Target,
 120                                intelImage->base.Base.TexFormat,
 121                                0,
 122                                lastLevel,
 123                                width,
 124                                height,
 125                                depth,
 126                                MAX2(intelImage->base.Base.NumSamples, 1),
 127                                layout_flags);
 128 }
 129
 130 static void
 131 intelTexImage(struct gl_context * ctx,
 132               GLuint dims,
 133               struct gl_texture_image *texImage,
 134               GLenum format, GLenum type, const void *pixels,
 135               const struct gl_pixelstore_attrib *unpack)
 136 {
 137    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 138    bool ok;
 139
 140    bool tex_busy = intelImage->mt && brw_bo_busy(intelImage->mt->bo);
 141
 142    DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
 143        __func__, _mesa_get_format_name(texImage->TexFormat),
 144        _mesa_enum_to_string(texImage->TexObject->Target),
 145        _mesa_enum_to_string(format), _mesa_enum_to_string(type),
 146        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 147
 148    /* Allocate storage for texture data. */
 149    if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
 150       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
 151       return;
 152    }
 153
 154    assert(intelImage->mt);
 155
 156    if (intelImage->mt->format == MESA_FORMAT_S_UINT8)
 157       intelImage->mt->r8stencil_needs_update = true;
 158
 159    ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
 160                                    texImage->Width, texImage->Height,
 161                                    texImage->Depth,
 162                                    format, type, pixels,
 163                                    tex_busy, unpack);
 164    if (ok)
 165       return;
 166
 167    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 168                                        0, 0, 0, /*x,y,z offsets*/
 169                                        texImage->Width,
 170                                        texImage->Height,
 171                                        texImage->Depth,
 172                                        format, type, pixels, unpack,
 173                                        false /*allocate_storage*/);
 174    if (ok)
 175       return;
 176
 177    DBG("%s: upload image %dx%dx%d pixels %p\n",
 178        __func__, texImage->Width, texImage->Height, texImage->Depth,
 179        pixels);
 180
 181    _mesa_store_teximage(ctx, dims, texImage,
 182                         format, type, pixels, unpack);
 183 }
 184
 185
 186 static void
 187 intel_set_texture_image_mt(struct brw_context *brw,
 188                            struct gl_texture_image *image,
 189                            GLenum internal_format,
 190                            struct intel_mipmap_tree *mt)
 191
 192 {
 193    struct gl_texture_object *texobj = image->TexObject;
 194    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 195    struct intel_texture_image *intel_image = intel_texture_image(image);
 196
 197    _mesa_init_teximage_fields(&brw->ctx, image,
 198                               mt->surf.logical_level0_px.width,
 199                               mt->surf.logical_level0_px.height, 1,
 200                               0, internal_format, mt->format);
 201
 202    brw->ctx.Driver.FreeTextureImageBuffer(&brw->ctx, image);
 203
 204    intel_texobj->needs_validate = true;
 205    intel_image->base.RowStride = mt->surf.row_pitch / mt->cpp;
 206    assert(mt->surf.row_pitch % mt->cpp == 0);
 207
 208    intel_miptree_reference(&intel_image->mt, mt);
 209
 210    /* Immediately validate the image to the object. */
 211    intel_miptree_reference(&intel_texobj->mt, mt);
 212 }
 213
 214
 215 void
 216 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 217                    GLint texture_format,
 218                    __DRIdrawable *dPriv)
 219 {
 220    struct gl_framebuffer *fb = dPriv->driverPrivate;
 221    struct brw_context *brw = pDRICtx->driverPrivate;
 222    struct gl_context *ctx = &brw->ctx;
 223    struct intel_renderbuffer *rb;
 224    struct gl_texture_object *texObj;
 225    struct gl_texture_image *texImage;
 226    mesa_format texFormat = MESA_FORMAT_NONE;
 227    struct intel_mipmap_tree *mt;
 228    GLenum internal_format = 0;
 229
 230    texObj = _mesa_get_current_tex_object(ctx, target);
 231
 232    if (!texObj)
 233       return;
 234
 235    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 236        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 237       intel_update_renderbuffers(pDRICtx, dPriv);
 238
 239    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 240    /* If the miptree isn't set, then intel_update_renderbuffers was unable
 241     * to get the BO for the drawable from the window system.
 242     */
 243    if (!rb || !rb->mt)
 244       return;
 245
 246    if (rb->mt->cpp == 4) {
 247       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 248          internal_format = GL_RGB;
 249          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
 250       }
 251       else {
 252          internal_format = GL_RGBA;
 253          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 254       }
 255    } else if (rb->mt->cpp == 2) {
 256       internal_format = GL_RGB;
 257       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 258    }
 259
 260    intel_miptree_make_shareable(brw, rb->mt);
 261    mt = intel_miptree_create_for_bo(brw, rb->mt->bo, texFormat, 0,
 262                                     rb->Base.Base.Width,
 263                                     rb->Base.Base.Height,
 264                                     1, rb->mt->surf.row_pitch, 0);
 265    if (mt == NULL)
 266        return;
 267    mt->target = target;
 268
 269    _mesa_lock_texture(&brw->ctx, texObj);
 270    texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
 271    intel_set_texture_image_mt(brw, texImage, internal_format, mt);
 272    intel_miptree_release(&mt);
 273    _mesa_unlock_texture(&brw->ctx, texObj);
 274 }
 275
 276 static GLboolean
 277 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
 278                                   struct gl_renderbuffer *rb,
 279                                   struct gl_texture_image *image)
 280 {
 281    struct intel_renderbuffer *irb = intel_renderbuffer(rb);
 282    struct intel_texture_image *intel_image = intel_texture_image(image);
 283    struct gl_texture_object *texobj = image->TexObject;
 284    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 285
 286    /* We can only handle RB allocated with AllocRenderbufferStorage, or
 287     * window-system renderbuffers.
 288     */
 289    assert(!rb->TexImage);
 290
 291    if (!irb->mt)
 292       return false;
 293
 294    _mesa_lock_texture(ctx, texobj);
 295    _mesa_init_teximage_fields(ctx, image,
 296                               rb->Width, rb->Height, 1,
 297                               0, rb->InternalFormat, rb->Format);
 298    image->NumSamples = rb->NumSamples;
 299
 300    intel_miptree_reference(&intel_image->mt, irb->mt);
 301
 302    /* Immediately validate the image to the object. */
 303    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 304
 305    intel_texobj->needs_validate = true;
 306    _mesa_unlock_texture(ctx, texobj);
 307
 308    return true;
 309 }
 310
 311 void
 312 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 313 {
 314    /* The old interface didn't have the format argument, so copy our
 315     * implementation's behavior at the time.
 316     */
 317    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 318 }
 319
 320 static void
 321 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 322                               struct gl_texture_object *texObj,
 323                               struct gl_texture_image *texImage,
 324                               GLeglImageOES image_handle)
 325 {
 326    struct brw_context *brw = brw_context(ctx);
 327    struct intel_mipmap_tree *mt;
 328    __DRIscreen *dri_screen = brw->screen->driScrnPriv;
 329    __DRIimage *image;
 330
 331    image = dri_screen->dri2.image->lookupEGLImage(dri_screen, image_handle,
 332                                                   dri_screen->loaderPrivate);
 333    if (image == NULL)
 334       return;
 335
 336    /* We support external textures only for EGLImages created with
 337     * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
 338     */
 339    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 340       _mesa_error(ctx, GL_INVALID_OPERATION,
 341             "glEGLImageTargetTexture2DOES(external target is enabled only "
 342                "for images created with EGL_EXT_image_dma_buf_import");
 343       return;
 344    }
 345
 346    /* Disallow depth/stencil textures: we don't have a way to pass the
 347     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 348     */
 349    if (image->has_depthstencil) {
 350       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 351       return;
 352    }
 353
 354    mt = intel_miptree_create_for_dri_image(brw, image, target,
 355                                            ISL_COLORSPACE_NONE, false);
 356    if (mt == NULL)
 357       return;
 358
 359    struct intel_texture_object *intel_texobj = intel_texture_object(texObj);
 360    intel_texobj->planar_format = image->planar_format;
 361
 362    const GLenum internal_format =
 363       image->internal_format != 0 ?
 364       image->internal_format : _mesa_get_format_base_format(mt->format);
 365    intel_set_texture_image_mt(brw, texImage, internal_format, mt);
 366    intel_miptree_release(&mt);
 367 }
 368
 369 /**
 370  * \brief A fast path for glGetTexImage.
 371  *
 372  * \see intel_readpixels_tiled_memcpy()
 373  */
 374 bool
 375 intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
 376                                   struct gl_texture_image *texImage,
 377                                   GLint xoffset, GLint yoffset,
 378                                   GLsizei width, GLsizei height,
 379                                   GLenum format, GLenum type,
 380                                   GLvoid *pixels,
 381                                   const struct gl_pixelstore_attrib *packing)
 382 {
 383    struct brw_context *brw = brw_context(ctx);
 384    struct intel_texture_image *image = intel_texture_image(texImage);
 385    int dst_pitch;
 386
 387    /* The miptree's buffer. */
 388    struct brw_bo *bo;
 389
 390    uint32_t cpp;
 391    mem_copy_fn mem_copy = NULL;
 392
 393    /* This fastpath is restricted to specific texture types:
 394     * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
 395     * more types.
 396     *
 397     * FINISHME: The restrictions below on packing alignment and packing row
 398     * length are likely unneeded now because we calculate the destination stride
 399     * with _mesa_image_row_stride. However, before removing the restrictions
 400     * we need tests.
 401     */
 402    if (!brw->has_llc ||
 403        !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
 404        !(texImage->TexObject->Target == GL_TEXTURE_2D ||
 405          texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
 406        pixels == NULL ||
 407        _mesa_is_bufferobj(packing->BufferObj) ||
 408        packing->Alignment > 4 ||
 409        packing->SkipPixels > 0 ||
 410        packing->SkipRows > 0 ||
 411        (packing->RowLength != 0 && packing->RowLength != width) ||
 412        packing->SwapBytes ||
 413        packing->LsbFirst ||
 414        packing->Invert)
 415       return false;
 416
 417    /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
 418     * function doesn't set the last channel to 1. Note this checks BaseFormat
 419     * rather than TexFormat in case the RGBX format is being simulated with an
 420     * RGBA format.
 421     */
 422    if (texImage->_BaseFormat == GL_RGB)
 423       return false;
 424
 425    if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp))
 426       return false;
 427
 428    /* If this is a nontrivial texture view, let another path handle it instead. */
 429    if (texImage->TexObject->MinLayer)
 430       return false;
 431
 432    if (!image->mt ||
 433        (image->mt->surf.tiling != ISL_TILING_X &&
 434         image->mt->surf.tiling != ISL_TILING_Y0)) {
 435       /* The algorithm is written only for X- or Y-tiled memory. */
 436       return false;
 437    }
 438
 439    /* tiled_to_linear() assumes that if the object is swizzled, it is using
 440     * I915_BIT6_SWIZZLE_9_10 for X and I915_BIT6_SWIZZLE_9 for Y.  This is only
 441     * true on gen5 and above.
 442     *
 443     * The killer on top is that some gen4 have an L-shaped swizzle mode, where
 444     * parts of the memory aren't swizzled at all. Userspace just can't handle
 445     * that.
 446     */
 447    if (brw->gen < 5 && brw->has_swizzling)
 448       return false;
 449
 450    int level = texImage->Level + texImage->TexObject->MinLevel;
 451
 452    /* Since we are going to write raw data to the miptree, we need to resolve
 453     * any pending fast color clears before we start.
 454     */
 455    assert(image->mt->surf.logical_level0_px.depth == 1);
 456    assert(image->mt->surf.logical_level0_px.array_len == 1);
 457
 458    intel_miptree_access_raw(brw, image->mt, level, 0, true);
 459
 460    bo = image->mt->bo;
 461
 462    if (brw_batch_references(&brw->batch, bo)) {
 463       perf_debug("Flushing before mapping a referenced bo.\n");
 464       intel_batchbuffer_flush(brw);
 465    }
 466
 467    void *map = brw_bo_map(brw, bo, MAP_READ | MAP_RAW);
 468    if (map == NULL) {
 469       DBG("%s: failed to map bo\n", __func__);
 470       return false;
 471    }
 472
 473    dst_pitch = _mesa_image_row_stride(packing, width, format, type);
 474
 475    DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
 476        "mesa_format=0x%x tiling=%d "
 477        "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
 478        __func__, texImage->Level, xoffset, yoffset, width, height,
 479        format, type, texImage->TexFormat, image->mt->surf.tiling,
 480        packing->Alignment, packing->RowLength, packing->SkipPixels,
 481        packing->SkipRows);
 482
 483    /* Adjust x and y offset based on miplevel */
 484    unsigned level_x, level_y;
 485    intel_miptree_get_image_offset(image->mt, level, 0, &level_x, &level_y);
 486    xoffset += level_x;
 487    yoffset += level_y;
 488
 489    tiled_to_linear(
 490       xoffset * cpp, (xoffset + width) * cpp,
 491       yoffset, yoffset + height,
 492       pixels - (ptrdiff_t) yoffset * dst_pitch - (ptrdiff_t) xoffset * cpp,
 493       map,
 494       dst_pitch, image->mt->surf.row_pitch,
 495       brw->has_swizzling,
 496       image->mt->surf.tiling,
 497       mem_copy
 498    );
 499
 500    brw_bo_unmap(bo);
 501    return true;
 502 }
 503
 504 static void
 505 intel_get_tex_sub_image(struct gl_context *ctx,
 506                         GLint xoffset, GLint yoffset, GLint zoffset,
 507                         GLsizei width, GLsizei height, GLint depth,
 508                         GLenum format, GLenum type, GLvoid *pixels,
 509                         struct gl_texture_image *texImage)
 510 {
 511    struct brw_context *brw = brw_context(ctx);
 512    bool ok;
 513
 514    DBG("%s\n", __func__);
 515
 516    if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
 517       if (_mesa_meta_pbo_GetTexSubImage(ctx, 3, texImage,
 518                                         xoffset, yoffset, zoffset,
 519                                         width, height, depth, format, type,
 520                                         pixels, &ctx->Pack)) {
 521          /* Flush to guarantee coherency between the render cache and other
 522           * caches the PBO could potentially be bound to after this point.
 523           * See the related comment in intelReadPixels() for a more detailed
 524           * explanation.
 525           */
 526          brw_emit_mi_flush(brw);
 527          return;
 528       }
 529
 530       perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__);
 531    }
 532
 533    ok = intel_gettexsubimage_tiled_memcpy(ctx, texImage, xoffset, yoffset,
 534                                           width, height,
 535                                           format, type, pixels, &ctx->Pack);
 536
 537    if(ok)
 538       return;
 539
 540    _mesa_meta_GetTexSubImage(ctx, xoffset, yoffset, zoffset,
 541                              width, height, depth,
 542                              format, type, pixels, texImage);
 543
 544    DBG("%s - DONE\n", __func__);
 545 }
 546
 547 static void
 548 flush_astc_denorms(struct gl_context *ctx, GLuint dims,
 549                    struct gl_texture_image *texImage,
 550                    GLint xoffset, GLint yoffset, GLint zoffset,
 551                    GLsizei width, GLsizei height, GLsizei depth)
 552 {
 553    struct compressed_pixelstore store;
 554    _mesa_compute_compressed_pixelstore(dims, texImage->TexFormat,
 555                                        width, height, depth,
 556                                        &ctx->Unpack, &store);
 557
 558    for (int slice = 0; slice < store.CopySlices; slice++) {
 559
 560       /* Map dest texture buffer */
 561       GLubyte *dstMap;
 562       GLint dstRowStride;
 563       ctx->Driver.MapTextureImage(ctx, texImage, slice + zoffset,
 564                                   xoffset, yoffset, width, height,
 565                                   GL_MAP_READ_BIT | GL_MAP_WRITE_BIT,
 566                                   &dstMap, &dstRowStride);
 567       if (!dstMap)
 568          continue;
 569
 570       for (int i = 0; i < store.CopyRowsPerSlice; i++) {
 571
 572          /* An ASTC block is stored in little endian mode. The byte that
 573           * contains bits 0..7 is stored at the lower address in memory.
 574           */
 575          struct astc_void_extent {
 576             uint16_t header : 12;
 577             uint16_t dontcare[3];
 578             uint16_t R;
 579             uint16_t G;
 580             uint16_t B;
 581             uint16_t A;
 582          } *blocks = (struct astc_void_extent*) dstMap;
 583
 584          /* Iterate over every copied block in the row */
 585          for (int j = 0; j < store.CopyBytesPerRow / 16; j++) {
 586
 587             /* Check if the header matches that of an LDR void-extent block */
 588             if (blocks[j].header == 0xDFC) {
 589
 590                /* Flush UNORM16 values that would be denormalized */
 591                if (blocks[j].A < 4) blocks[j].A = 0;
 592                if (blocks[j].B < 4) blocks[j].B = 0;
 593                if (blocks[j].G < 4) blocks[j].G = 0;
 594                if (blocks[j].R < 4) blocks[j].R = 0;
 595             }
 596          }
 597
 598          dstMap += dstRowStride;
 599       }
 600
 601       ctx->Driver.UnmapTextureImage(ctx, texImage, slice + zoffset);
 602    }
 603 }
 604
 605
 606 static void
 607 intelCompressedTexSubImage(struct gl_context *ctx, GLuint dims,
 608                         struct gl_texture_image *texImage,
 609                         GLint xoffset, GLint yoffset, GLint zoffset,
 610                         GLsizei width, GLsizei height, GLsizei depth,
 611                         GLenum format,
 612                         GLsizei imageSize, const GLvoid *data)
 613 {
 614    /* Upload the compressed data blocks */
 615    _mesa_store_compressed_texsubimage(ctx, dims, texImage,
 616                                       xoffset, yoffset, zoffset,
 617                                       width, height, depth,
 618                                       format, imageSize, data);
 619
 620    /* Fix up copied ASTC blocks if necessary */
 621    GLenum gl_format = _mesa_compressed_format_to_glenum(ctx,
 622                                                         texImage->TexFormat);
 623    bool is_linear_astc = _mesa_is_astc_format(gl_format) &&
 624                         !_mesa_is_srgb_format(gl_format);
 625    struct brw_context *brw = (struct brw_context*) ctx;
 626    if (brw->gen == 9 && is_linear_astc)
 627       flush_astc_denorms(ctx, dims, texImage,
 628                          xoffset, yoffset, zoffset,
 629                          width, height, depth);
 630 }
 631
 632 void
 633 intelInitTextureImageFuncs(struct dd_function_table *functions)
 634 {
 635    functions->TexImage = intelTexImage;
 636    functions->CompressedTexSubImage = intelCompressedTexSubImage;
 637    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 638    functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
 639    functions->GetTexSubImage = intel_get_tex_sub_image;
 640 }