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 && old_mt->surf.size > 0) {
  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    } else if (old_mt) {
  72       old_width = old_mt->logical_width0;
  73       old_height = old_mt->logical_height0;
  74       old_depth = old_mt->logical_depth0;
  75    }
  76
  77    DBG("%s\n", __func__);
  78
  79    /* Figure out image dimensions at start level. */
  80    switch(intelObj->base.Target) {
  81    case GL_TEXTURE_2D_MULTISAMPLE:
  82    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
  83    case GL_TEXTURE_RECTANGLE:
  84    case GL_TEXTURE_EXTERNAL_OES:
  85       assert(level == 0);
  86       break;
  87    case GL_TEXTURE_3D:
  88       depth = old_mt ? get_base_dim(old_depth, depth, level) :
  89                        depth << level;
  90       /* Fall through */
  91    case GL_TEXTURE_2D:
  92    case GL_TEXTURE_2D_ARRAY:
  93    case GL_TEXTURE_CUBE_MAP:
  94    case GL_TEXTURE_CUBE_MAP_ARRAY:
  95       height = old_mt ? get_base_dim(old_height, height, level) :
  96                         height << level;
  97       /* Fall through */
  98    case GL_TEXTURE_1D:
  99    case GL_TEXTURE_1D_ARRAY:
 100       width = old_mt ? get_base_dim(old_width, width, level) :
 101                        width << level;
 102       break;
 103    default:
 104       unreachable("Unexpected target");
 105    }
 106
 107    /* Guess a reasonable value for lastLevel.  This is probably going
 108     * to be wrong fairly often and might mean that we have to look at
 109     * resizable buffers, or require that buffers implement lazy
 110     * pagetable arrangements.
 111     */
 112    if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
 113         intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
 114        intelImage->base.Base.Level == 0 &&
 115        !intelObj->base.GenerateMipmap) {
 116       lastLevel = 0;
 117    } else {
 118       lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
 119                                                width, height, depth) - 1;
 120    }
 121
 122    return intel_miptree_create(brw,
 123                                intelObj->base.Target,
 124                                intelImage->base.Base.TexFormat,
 125                                0,
 126                                lastLevel,
 127                                width,
 128                                height,
 129                                depth,
 130                                intelImage->base.Base.NumSamples,
 131                                layout_flags | MIPTREE_LAYOUT_TILING_ANY);
 132 }
 133
 134 static void
 135 intelTexImage(struct gl_context * ctx,
 136               GLuint dims,
 137               struct gl_texture_image *texImage,
 138               GLenum format, GLenum type, const void *pixels,
 139               const struct gl_pixelstore_attrib *unpack)
 140 {
 141    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 142    bool ok;
 143
 144    bool tex_busy = intelImage->mt && brw_bo_busy(intelImage->mt->bo);
 145
 146    DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
 147        __func__, _mesa_get_format_name(texImage->TexFormat),
 148        _mesa_enum_to_string(texImage->TexObject->Target),
 149        _mesa_enum_to_string(format), _mesa_enum_to_string(type),
 150        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 151
 152    /* Allocate storage for texture data. */
 153    if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
 154       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
 155       return;
 156    }
 157
 158    assert(intelImage->mt);
 159
 160    if (intelImage->mt->format == MESA_FORMAT_S_UINT8)
 161       intelImage->mt->r8stencil_needs_update = true;
 162
 163    ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
 164                                    texImage->Width, texImage->Height,
 165                                    texImage->Depth,
 166                                    format, type, pixels,
 167                                    tex_busy, unpack);
 168    if (ok)
 169       return;
 170
 171    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 172                                        0, 0, 0, /*x,y,z offsets*/
 173                                        texImage->Width,
 174                                        texImage->Height,
 175                                        texImage->Depth,
 176                                        format, type, pixels, unpack,
 177                                        false /*allocate_storage*/);
 178    if (ok)
 179       return;
 180
 181    DBG("%s: upload image %dx%dx%d pixels %p\n",
 182        __func__, texImage->Width, texImage->Height, texImage->Depth,
 183        pixels);
 184
 185    _mesa_store_teximage(ctx, dims, texImage,
 186                         format, type, pixels, unpack);
 187 }
 188
 189
 190 static void
 191 intel_set_texture_image_mt(struct brw_context *brw,
 192                            struct gl_texture_image *image,
 193                            GLenum internal_format,
 194                            struct intel_mipmap_tree *mt)
 195
 196 {
 197    struct gl_texture_object *texobj = image->TexObject;
 198    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 199    struct intel_texture_image *intel_image = intel_texture_image(image);
 200
 201    _mesa_init_teximage_fields(&brw->ctx, image,
 202                               mt->logical_width0, mt->logical_height0, 1,
 203                               0, internal_format, mt->format);
 204
 205    brw->ctx.Driver.FreeTextureImageBuffer(&brw->ctx, image);
 206
 207    intel_texobj->needs_validate = true;
 208    intel_image->base.RowStride = mt->pitch / mt->cpp;
 209    assert(mt->pitch % mt->cpp == 0);
 210
 211    intel_miptree_reference(&intel_image->mt, mt);
 212
 213    /* Immediately validate the image to the object. */
 214    intel_miptree_reference(&intel_texobj->mt, mt);
 215 }
 216
 217
 218 void
 219 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 220                    GLint texture_format,
 221                    __DRIdrawable *dPriv)
 222 {
 223    struct gl_framebuffer *fb = dPriv->driverPrivate;
 224    struct brw_context *brw = pDRICtx->driverPrivate;
 225    struct gl_context *ctx = &brw->ctx;
 226    struct intel_renderbuffer *rb;
 227    struct gl_texture_object *texObj;
 228    struct gl_texture_image *texImage;
 229    mesa_format texFormat = MESA_FORMAT_NONE;
 230    struct intel_mipmap_tree *mt;
 231    GLenum internal_format = 0;
 232
 233    texObj = _mesa_get_current_tex_object(ctx, target);
 234
 235    if (!texObj)
 236       return;
 237
 238    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 239        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 240       intel_update_renderbuffers(pDRICtx, dPriv);
 241
 242    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 243    /* If the miptree isn't set, then intel_update_renderbuffers was unable
 244     * to get the BO for the drawable from the window system.
 245     */
 246    if (!rb || !rb->mt)
 247       return;
 248
 249    if (rb->mt->cpp == 4) {
 250       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 251          internal_format = GL_RGB;
 252          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
 253       }
 254       else {
 255          internal_format = GL_RGBA;
 256          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 257       }
 258    } else if (rb->mt->cpp == 2) {
 259       internal_format = GL_RGB;
 260       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 261    }
 262
 263    intel_miptree_make_shareable(brw, rb->mt);
 264    mt = intel_miptree_create_for_bo(brw, rb->mt->bo, texFormat, 0,
 265                                     rb->Base.Base.Width,
 266                                     rb->Base.Base.Height,
 267                                     1, rb->mt->pitch, 0);
 268    if (mt == NULL)
 269        return;
 270    mt->target = target;
 271    mt->total_width = rb->Base.Base.Width;
 272    mt->total_height = rb->Base.Base.Height;
 273
 274    _mesa_lock_texture(&brw->ctx, texObj);
 275    texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
 276    intel_set_texture_image_mt(brw, texImage, internal_format, mt);
 277    intel_miptree_release(&mt);
 278    _mesa_unlock_texture(&brw->ctx, texObj);
 279 }
 280
 281 static GLboolean
 282 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
 283                                   struct gl_renderbuffer *rb,
 284                                   struct gl_texture_image *image)
 285 {
 286    struct intel_renderbuffer *irb = intel_renderbuffer(rb);
 287    struct intel_texture_image *intel_image = intel_texture_image(image);
 288    struct gl_texture_object *texobj = image->TexObject;
 289    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 290
 291    /* We can only handle RB allocated with AllocRenderbufferStorage, or
 292     * window-system renderbuffers.
 293     */
 294    assert(!rb->TexImage);
 295
 296    if (!irb->mt)
 297       return false;
 298
 299    _mesa_lock_texture(ctx, texobj);
 300    _mesa_init_teximage_fields(ctx, image,
 301                               rb->Width, rb->Height, 1,
 302                               0, rb->InternalFormat, rb->Format);
 303    image->NumSamples = rb->NumSamples;
 304
 305    intel_miptree_reference(&intel_image->mt, irb->mt);
 306
 307    /* Immediately validate the image to the object. */
 308    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 309
 310    intel_texobj->needs_validate = true;
 311    _mesa_unlock_texture(ctx, texobj);
 312
 313    return true;
 314 }
 315
 316 void
 317 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 318 {
 319    /* The old interface didn't have the format argument, so copy our
 320     * implementation's behavior at the time.
 321     */
 322    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 323 }
 324
 325 static void
 326 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 327                               struct gl_texture_object *texObj,
 328                               struct gl_texture_image *texImage,
 329                               GLeglImageOES image_handle)
 330 {
 331    struct brw_context *brw = brw_context(ctx);
 332    struct intel_mipmap_tree *mt;
 333    __DRIscreen *dri_screen = brw->screen->driScrnPriv;
 334    __DRIimage *image;
 335
 336    image = dri_screen->dri2.image->lookupEGLImage(dri_screen, image_handle,
 337                                                   dri_screen->loaderPrivate);
 338    if (image == NULL)
 339       return;
 340
 341    /* We support external textures only for EGLImages created with
 342     * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
 343     */
 344    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 345       _mesa_error(ctx, GL_INVALID_OPERATION,
 346             "glEGLImageTargetTexture2DOES(external target is enabled only "
 347                "for images created with EGL_EXT_image_dma_buf_import");
 348       return;
 349    }
 350
 351    /* Disallow depth/stencil textures: we don't have a way to pass the
 352     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 353     */
 354    if (image->has_depthstencil) {
 355       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 356       return;
 357    }
 358
 359    mt = intel_miptree_create_for_dri_image(brw, image, target);
 360    if (mt == NULL)
 361       return;
 362
 363    struct intel_texture_object *intel_texobj = intel_texture_object(texObj);
 364    intel_texobj->planar_format = image->planar_format;
 365
 366    const GLenum internal_format =
 367       image->internal_format != 0 ?
 368       image->internal_format : _mesa_get_format_base_format(mt->format);
 369    intel_set_texture_image_mt(brw, texImage, internal_format, mt);
 370    intel_miptree_release(&mt);
 371 }
 372
 373 /**
 374  * \brief A fast path for glGetTexImage.
 375  *
 376  * \see intel_readpixels_tiled_memcpy()
 377  */
 378 bool
 379 intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
 380                                   struct gl_texture_image *texImage,
 381                                   GLint xoffset, GLint yoffset,
 382                                   GLsizei width, GLsizei height,
 383                                   GLenum format, GLenum type,
 384                                   GLvoid *pixels,
 385                                   const struct gl_pixelstore_attrib *packing)
 386 {
 387    struct brw_context *brw = brw_context(ctx);
 388    struct intel_texture_image *image = intel_texture_image(texImage);
 389    int dst_pitch;
 390
 391    /* The miptree's buffer. */
 392    struct brw_bo *bo;
 393
 394    uint32_t cpp;
 395    mem_copy_fn mem_copy = NULL;
 396
 397    /* This fastpath is restricted to specific texture types:
 398     * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
 399     * more types.
 400     *
 401     * FINISHME: The restrictions below on packing alignment and packing row
 402     * length are likely unneeded now because we calculate the destination stride
 403     * with _mesa_image_row_stride. However, before removing the restrictions
 404     * we need tests.
 405     */
 406    if (!brw->has_llc ||
 407        !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
 408        !(texImage->TexObject->Target == GL_TEXTURE_2D ||
 409          texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
 410        pixels == NULL ||
 411        _mesa_is_bufferobj(packing->BufferObj) ||
 412        packing->Alignment > 4 ||
 413        packing->SkipPixels > 0 ||
 414        packing->SkipRows > 0 ||
 415        (packing->RowLength != 0 && packing->RowLength != width) ||
 416        packing->SwapBytes ||
 417        packing->LsbFirst ||
 418        packing->Invert)
 419       return false;
 420
 421    /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
 422     * function doesn't set the last channel to 1. Note this checks BaseFormat
 423     * rather than TexFormat in case the RGBX format is being simulated with an
 424     * RGBA format.
 425     */
 426    if (texImage->_BaseFormat == GL_RGB)
 427       return false;
 428
 429    if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp))
 430       return false;
 431
 432    /* If this is a nontrivial texture view, let another path handle it instead. */
 433    if (texImage->TexObject->MinLayer)
 434       return false;
 435
 436    if (!image->mt ||
 437        (image->mt->tiling != I915_TILING_X &&
 438        image->mt->tiling != I915_TILING_Y)) {
 439       /* The algorithm is written only for X- or Y-tiled memory. */
 440       return false;
 441    }
 442
 443    /* tiled_to_linear() assumes that if the object is swizzled, it is using
 444     * I915_BIT6_SWIZZLE_9_10 for X and I915_BIT6_SWIZZLE_9 for Y.  This is only
 445     * true on gen5 and above.
 446     *
 447     * The killer on top is that some gen4 have an L-shaped swizzle mode, where
 448     * parts of the memory aren't swizzled at all. Userspace just can't handle
 449     * that.
 450     */
 451    if (brw->gen < 5 && brw->has_swizzling)
 452       return false;
 453
 454    int level = texImage->Level + texImage->TexObject->MinLevel;
 455
 456    /* Since we are going to write raw data to the miptree, we need to resolve
 457     * any pending fast color clears before we start.
 458     */
 459    assert(image->mt->logical_depth0 == 1);
 460    intel_miptree_access_raw(brw, image->mt, level, 0, true);
 461
 462    bo = image->mt->bo;
 463
 464    if (brw_batch_references(&brw->batch, bo)) {
 465       perf_debug("Flushing before mapping a referenced bo.\n");
 466       intel_batchbuffer_flush(brw);
 467    }
 468
 469    void *map = brw_bo_map(brw, bo, MAP_READ | MAP_RAW);
 470    if (map == NULL) {
 471       DBG("%s: failed to map bo\n", __func__);
 472       return false;
 473    }
 474
 475    dst_pitch = _mesa_image_row_stride(packing, width, format, type);
 476
 477    DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
 478        "mesa_format=0x%x tiling=%d "
 479        "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
 480        __func__, texImage->Level, xoffset, yoffset, width, height,
 481        format, type, texImage->TexFormat, image->mt->tiling,
 482        packing->Alignment, packing->RowLength, packing->SkipPixels,
 483        packing->SkipRows);
 484
 485    /* Adjust x and y offset based on miplevel */
 486    xoffset += image->mt->level[level].level_x;
 487    yoffset += image->mt->level[level].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->pitch,
 495       brw->has_swizzling,
 496       image->mt->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 }