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

   1
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4
   5 #include "main/glheader.h"
   6 #include "main/macros.h"
   7 #include "main/mtypes.h"
   8 #include "main/enums.h"
   9 #include "main/colortab.h"
  10 #include "main/convolve.h"
  11 #include "main/context.h"
  12 #include "main/simple_list.h"
  13 #include "main/texcompress.h"
  14 #include "main/texformat.h"
  15 #include "main/texobj.h"
  16 #include "main/texstore.h"
  17 #include "main/teximage.h"
  18
  19 #include "intel_context.h"
  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
  27 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  28
  29 /* Functions to store texture images.  Where possible, mipmap_tree's
  30  * will be created or further instantiated with image data, otherwise
  31  * images will be stored in malloc'd memory.  A validation step is
  32  * required to pull those images into a mipmap tree, or otherwise
  33  * decide a fallback is required.
  34  */
  35
  36
  37 static int
  38 logbase2(int n)
  39 {
  40    GLint i = 1;
  41    GLint log2 = 0;
  42
  43    while (n > i) {
  44       i *= 2;
  45       log2++;
  46    }
  47
  48    return log2;
  49 }
  50
  51
  52 /* Otherwise, store it in memory if (Border != 0) or (any dimension ==
  53  * 1).
  54  *
  55  * Otherwise, if max_level >= level >= min_level, create tree with
  56  * space for textures from min_level down to max_level.
  57  *
  58  * Otherwise, create tree with space for textures from (level
  59  * 0)..(1x1).  Consider pruning this tree at a validation if the
  60  * saving is worth it.
  61  */
  62 static void
  63 guess_and_alloc_mipmap_tree(struct intel_context *intel,
  64                             struct intel_texture_object *intelObj,
  65                             struct intel_texture_image *intelImage,
  66                             GLboolean expect_accelerated_upload)
  67 {
  68    GLuint firstLevel;
  69    GLuint lastLevel;
  70    GLuint width = intelImage->base.Width;
  71    GLuint height = intelImage->base.Height;
  72    GLuint depth = intelImage->base.Depth;
  73    GLuint l2width, l2height, l2depth;
  74    GLuint i, comp_byte = 0;
  75
  76    DBG("%s\n", __FUNCTION__);
  77
  78    if (intelImage->base.Border ||
  79        ((intelImage->base._BaseFormat == GL_DEPTH_COMPONENT) &&
  80         ((intelObj->base.WrapS == GL_CLAMP_TO_BORDER) ||
  81          (intelObj->base.WrapT == GL_CLAMP_TO_BORDER))))
  82       return;
  83
  84    if (intelImage->level > intelObj->base.BaseLevel &&
  85        (intelImage->base.Width == 1 ||
  86         (intelObj->base.Target != GL_TEXTURE_1D &&
  87          intelImage->base.Height == 1) ||
  88         (intelObj->base.Target == GL_TEXTURE_3D &&
  89          intelImage->base.Depth == 1)))
  90       return;
  91
  92    /* If this image disrespects BaseLevel, allocate from level zero.
  93     * Usually BaseLevel == 0, so it's unlikely to happen.
  94     */
  95    if (intelImage->level < intelObj->base.BaseLevel)
  96       firstLevel = 0;
  97    else
  98       firstLevel = intelObj->base.BaseLevel;
  99
 100
 101    /* Figure out image dimensions at start level.
 102     */
 103    for (i = intelImage->level; i > firstLevel; i--) {
 104       width <<= 1;
 105       if (height != 1)
 106          height <<= 1;
 107       if (depth != 1)
 108          depth <<= 1;
 109    }
 110
 111    /* Guess a reasonable value for lastLevel.  This is probably going
 112     * to be wrong fairly often and might mean that we have to look at
 113     * resizable buffers, or require that buffers implement lazy
 114     * pagetable arrangements.
 115     */
 116    if ((intelObj->base.MinFilter == GL_NEAREST ||
 117         intelObj->base.MinFilter == GL_LINEAR) &&
 118        intelImage->level == firstLevel) {
 119       lastLevel = firstLevel;
 120    }
 121    else {
 122       l2width = logbase2(width);
 123       l2height = logbase2(height);
 124       l2depth = logbase2(depth);
 125       lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth);
 126    }
 127
 128    assert(!intelObj->mt);
 129    if (intelImage->base.IsCompressed)
 130       comp_byte = intel_compressed_num_bytes(intelImage->base.TexFormat->MesaFormat);
 131    intelObj->mt = intel_miptree_create(intel,
 132                                        intelObj->base.Target,
 133                                        intelImage->base.InternalFormat,
 134                                        firstLevel,
 135                                        lastLevel,
 136                                        width,
 137                                        height,
 138                                        depth,
 139                                        intelImage->base.TexFormat->TexelBytes,
 140                                        comp_byte,
 141                                        expect_accelerated_upload);
 142
 143    DBG("%s - success\n", __FUNCTION__);
 144 }
 145
 146
 147
 148
 149 static GLuint
 150 target_to_face(GLenum target)
 151 {
 152    switch (target) {
 153    case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
 154    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
 155    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
 156    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
 157    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
 158    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
 159       return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
 160    default:
 161       return 0;
 162    }
 163 }
 164
 165 /* There are actually quite a few combinations this will work for,
 166  * more than what I've listed here.
 167  */
 168 static GLboolean
 169 check_pbo_format(GLint internalFormat,
 170                  GLenum format, GLenum type,
 171                  const struct gl_texture_format *mesa_format)
 172 {
 173    switch (internalFormat) {
 174    case 4:
 175    case GL_RGBA:
 176       return (format == GL_BGRA &&
 177               (type == GL_UNSIGNED_BYTE ||
 178                type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
 179               mesa_format == &_mesa_texformat_argb8888);
 180    case 3:
 181    case GL_RGB:
 182       return (format == GL_RGB &&
 183               type == GL_UNSIGNED_SHORT_5_6_5 &&
 184               mesa_format == &_mesa_texformat_rgb565);
 185    case GL_YCBCR_MESA:
 186       return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
 187    default:
 188       return GL_FALSE;
 189    }
 190 }
 191
 192
 193 /* XXX: Do this for TexSubImage also:
 194  */
 195 static GLboolean
 196 try_pbo_upload(struct intel_context *intel,
 197                struct intel_texture_image *intelImage,
 198                const struct gl_pixelstore_attrib *unpack,
 199                GLint internalFormat,
 200                GLint width, GLint height,
 201                GLenum format, GLenum type, const void *pixels)
 202 {
 203    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 204    GLuint src_offset, src_stride;
 205    GLuint dst_offset, dst_stride;
 206
 207    if (!pbo ||
 208        intel->ctx._ImageTransferState ||
 209        unpack->SkipPixels || unpack->SkipRows) {
 210       _mesa_printf("%s: failure 1\n", __FUNCTION__);
 211       return GL_FALSE;
 212    }
 213
 214    /* note: potential 64-bit ptr to 32-bit int cast */
 215    src_offset = (GLuint) (unsigned long) pixels;
 216
 217    if (unpack->RowLength > 0)
 218       src_stride = unpack->RowLength;
 219    else
 220       src_stride = width;
 221
 222    dst_offset = intel_miptree_image_offset(intelImage->mt,
 223                                            intelImage->face,
 224                                            intelImage->level);
 225
 226    dst_stride = intelImage->mt->pitch;
 227
 228    intelFlush(&intel->ctx);
 229    LOCK_HARDWARE(intel);
 230    {
 231       dri_bo *src_buffer = intel_bufferobj_buffer(intel, pbo, INTEL_READ);
 232       dri_bo *dst_buffer = intel_region_buffer(intel,
 233                                                intelImage->mt->region,
 234                                                INTEL_WRITE_FULL);
 235
 236
 237       intelEmitCopyBlit(intel,
 238                         intelImage->mt->cpp,
 239                         src_stride, src_buffer, src_offset, GL_FALSE,
 240                         dst_stride, dst_buffer, dst_offset, GL_FALSE,
 241                         0, 0, 0, 0, width, height,
 242                         GL_COPY);
 243    }
 244    UNLOCK_HARDWARE(intel);
 245
 246    return GL_TRUE;
 247 }
 248
 249
 250
 251 static GLboolean
 252 try_pbo_zcopy(struct intel_context *intel,
 253               struct intel_texture_image *intelImage,
 254               const struct gl_pixelstore_attrib *unpack,
 255               GLint internalFormat,
 256               GLint width, GLint height,
 257               GLenum format, GLenum type, const void *pixels)
 258 {
 259    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 260    GLuint src_offset, src_stride;
 261    GLuint dst_offset, dst_stride;
 262
 263    if (!pbo ||
 264        intel->ctx._ImageTransferState ||
 265        unpack->SkipPixels || unpack->SkipRows) {
 266       _mesa_printf("%s: failure 1\n", __FUNCTION__);
 267       return GL_FALSE;
 268    }
 269
 270    /* note: potential 64-bit ptr to 32-bit int cast */
 271    src_offset = (GLuint) (unsigned long) pixels;
 272
 273    if (unpack->RowLength > 0)
 274       src_stride = unpack->RowLength;
 275    else
 276       src_stride = width;
 277
 278    dst_offset = intel_miptree_image_offset(intelImage->mt,
 279                                            intelImage->face,
 280                                            intelImage->level);
 281
 282    dst_stride = intelImage->mt->pitch;
 283
 284    if (src_stride != dst_stride || dst_offset != 0 || src_offset != 0) {
 285       _mesa_printf("%s: failure 2\n", __FUNCTION__);
 286       return GL_FALSE;
 287    }
 288
 289    intel_region_attach_pbo(intel, intelImage->mt->region, pbo);
 290
 291    return GL_TRUE;
 292 }
 293
 294
 295
 296
 297
 298
 299 static void
 300 intelTexImage(GLcontext * ctx,
 301               GLint dims,
 302               GLenum target, GLint level,
 303               GLint internalFormat,
 304               GLint width, GLint height, GLint depth,
 305               GLint border,
 306               GLenum format, GLenum type, const void *pixels,
 307               const struct gl_pixelstore_attrib *unpack,
 308               struct gl_texture_object *texObj,
 309               struct gl_texture_image *texImage, GLsizei imageSize, int compressed)
 310 {
 311    struct intel_context *intel = intel_context(ctx);
 312    struct intel_texture_object *intelObj = intel_texture_object(texObj);
 313    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 314    GLint postConvWidth = width;
 315    GLint postConvHeight = height;
 316    GLint texelBytes, sizeInBytes;
 317    GLuint dstRowStride, srcRowStride = texImage->RowStride;
 318
 319
 320    DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
 321        _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
 322
 323    intelFlush(ctx);
 324
 325    intelImage->face = target_to_face(target);
 326    intelImage->level = level;
 327
 328    if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
 329       _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth,
 330                                          &postConvHeight);
 331    }
 332
 333    /* choose the texture format */
 334    texImage->TexFormat = intelChooseTextureFormat(ctx, internalFormat,
 335                                                   format, type);
 336
 337    _mesa_set_fetch_functions(texImage, dims);
 338
 339    if (texImage->TexFormat->TexelBytes == 0) {
 340       /* must be a compressed format */
 341       texelBytes = 0;
 342       texImage->IsCompressed = GL_TRUE;
 343       texImage->CompressedSize =
 344          ctx->Driver.CompressedTextureSize(ctx, texImage->Width,
 345                                            texImage->Height, texImage->Depth,
 346                                            texImage->TexFormat->MesaFormat);
 347    } else {
 348       texelBytes = texImage->TexFormat->TexelBytes;
 349
 350       /* Minimum pitch of 32 bytes */
 351       if (postConvWidth * texelBytes < 32) {
 352          postConvWidth = 32 / texelBytes;
 353          texImage->RowStride = postConvWidth;
 354       }
 355
 356       if (!intelImage->mt) {
 357           assert(texImage->RowStride == postConvWidth);
 358       }
 359    }
 360
 361    /* Release the reference to a potentially orphaned buffer.
 362     * Release any old malloced memory.
 363     */
 364    if (intelImage->mt) {
 365       intel_miptree_release(intel, &intelImage->mt);
 366       assert(!texImage->Data);
 367    }
 368    else if (texImage->Data) {
 369       _mesa_free_texmemory(texImage->Data);
 370       texImage->Data = NULL;
 371    }
 372
 373    /* If this is the only texture image in the tree, could call
 374     * bmBufferData with NULL data to free the old block and avoid
 375     * waiting on any outstanding fences.
 376     */
 377    if (intelObj->mt &&
 378        intelObj->mt->first_level == level &&
 379        intelObj->mt->last_level == level &&
 380        intelObj->mt->target != GL_TEXTURE_CUBE_MAP_ARB &&
 381        !intel_miptree_match_image(intelObj->mt, &intelImage->base,
 382                                   intelImage->face, intelImage->level)) {
 383
 384       DBG("release it\n");
 385       intel_miptree_release(intel, &intelObj->mt);
 386       assert(!intelObj->mt);
 387    }
 388
 389    if (!intelObj->mt) {
 390       guess_and_alloc_mipmap_tree(intel, intelObj, intelImage, pixels == NULL);
 391       if (!intelObj->mt) {
 392          DBG("guess_and_alloc_mipmap_tree: failed\n");
 393       }
 394    }
 395
 396    assert(!intelImage->mt);
 397
 398    if (intelObj->mt &&
 399        intel_miptree_match_image(intelObj->mt, &intelImage->base,
 400                                  intelImage->face, intelImage->level)) {
 401
 402       intel_miptree_reference(&intelImage->mt, intelObj->mt);
 403       assert(intelImage->mt);
 404    } else if (intelImage->base.Border == 0) {
 405       int comp_byte = 0;
 406
 407       if (intelImage->base.IsCompressed) {
 408          comp_byte =
 409             intel_compressed_num_bytes(intelImage->base.TexFormat->MesaFormat);
 410       }
 411
 412       /* Didn't fit in the object miptree, but it's suitable for inclusion in
 413        * a miptree, so create one just for our level and store it in the image.
 414        * It'll get moved into the object miptree at validate time.
 415        */
 416       intelImage->mt = intel_miptree_create(intel, target, internalFormat,
 417                                             level, level,
 418                                             width, height, depth,
 419                                             intelImage->base.TexFormat->TexelBytes,
 420                                             comp_byte, pixels == NULL);
 421
 422    }
 423
 424    /* PBO fastpaths:
 425     */
 426    if (dims <= 2 &&
 427        intelImage->mt &&
 428        intel_buffer_object(unpack->BufferObj) &&
 429        check_pbo_format(internalFormat, format,
 430                         type, intelImage->base.TexFormat)) {
 431
 432       DBG("trying pbo upload\n");
 433
 434       /* Attempt to texture directly from PBO data (zero copy upload).
 435        *
 436        * Currently disable as it can lead to worse as well as better
 437        * performance (in particular when intel_region_cow() is
 438        * required).
 439        */
 440       if (intelObj->mt == intelImage->mt &&
 441           intelObj->mt->first_level == level &&
 442           intelObj->mt->last_level == level) {
 443
 444          if (try_pbo_zcopy(intel, intelImage, unpack,
 445                            internalFormat,
 446                            width, height, format, type, pixels)) {
 447
 448             DBG("pbo zcopy upload succeeded\n");
 449             return;
 450          }
 451       }
 452
 453
 454       /* Otherwise, attempt to use the blitter for PBO image uploads.
 455        */
 456       if (try_pbo_upload(intel, intelImage, unpack,
 457                          internalFormat,
 458                          width, height, format, type, pixels)) {
 459          DBG("pbo upload succeeded\n");
 460          return;
 461       }
 462
 463       DBG("pbo upload failed\n");
 464    }
 465
 466
 467
 468    /* intelCopyTexImage calls this function with pixels == NULL, with
 469     * the expectation that the mipmap tree will be set up but nothing
 470     * more will be done.  This is where those calls return:
 471     */
 472    if (compressed) {
 473       pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
 474                                                       unpack,
 475                                                       "glCompressedTexImage");
 476    } else {
 477       pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
 478                                            format, type,
 479                                            pixels, unpack, "glTexImage");
 480    }
 481
 482    LOCK_HARDWARE(intel);
 483
 484    if (intelImage->mt) {
 485       texImage->Data = intel_miptree_image_map(intel,
 486                                                intelImage->mt,
 487                                                intelImage->face,
 488                                                intelImage->level,
 489                                                &dstRowStride,
 490                                                intelImage->base.ImageOffsets);
 491       texImage->RowStride = dstRowStride / intelImage->mt->cpp;
 492    }
 493    else {
 494       /* Allocate regular memory and store the image there temporarily.   */
 495       if (texImage->IsCompressed) {
 496          sizeInBytes = texImage->CompressedSize;
 497          dstRowStride =
 498             _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width);
 499          assert(dims != 3);
 500       }
 501       else {
 502          dstRowStride = postConvWidth * texelBytes;
 503          sizeInBytes = depth * dstRowStride * postConvHeight;
 504       }
 505
 506       texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
 507    }
 508
 509    DBG("Upload image %dx%dx%d row_len %d "
 510        "pitch %d\n",
 511        width, height, depth, width * texelBytes, dstRowStride);
 512
 513    /* Copy data.  Would like to know when it's ok for us to eg. use
 514     * the blitter to copy.  Or, use the hardware to do the format
 515     * conversion and copy:
 516     */
 517    if (pixels) {
 518        if (compressed) {
 519            if (intelImage->mt) {
 520                struct intel_region *dst = intelImage->mt->region;
 521                _mesa_copy_rect(texImage->Data, dst->cpp, dst->pitch,
 522                                0, 0,
 523                                intelImage->mt->level[level].width,
 524                                intelImage->mt->level[level].height/4,
 525                                pixels,
 526                                srcRowStride,
 527                                0, 0);
 528            } else
 529                memcpy(texImage->Data, pixels, imageSize);
 530        } else if (!texImage->TexFormat->StoreImage(ctx, dims,
 531                                                    texImage->_BaseFormat,
 532                                                    texImage->TexFormat,
 533                                                    texImage->Data, 0, 0, 0, /* dstX/Y/Zoffset */
 534                                                    dstRowStride,
 535                                                    texImage->ImageOffsets,
 536                                                    width, height, depth,
 537                                                    format, type, pixels, unpack)) {
 538            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
 539        }
 540    }
 541
 542    /* GL_SGIS_generate_mipmap */
 543    if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
 544       intel_generate_mipmap(ctx, target, texObj);
 545    }
 546
 547    _mesa_unmap_teximage_pbo(ctx, unpack);
 548
 549    if (intelImage->mt) {
 550       intel_miptree_image_unmap(intel, intelImage->mt);
 551       texImage->Data = NULL;
 552    }
 553
 554    UNLOCK_HARDWARE(intel);
 555 }
 556
 557 void
 558 intelTexImage3D(GLcontext * ctx,
 559                 GLenum target, GLint level,
 560                 GLint internalFormat,
 561                 GLint width, GLint height, GLint depth,
 562                 GLint border,
 563                 GLenum format, GLenum type, const void *pixels,
 564                 const struct gl_pixelstore_attrib *unpack,
 565                 struct gl_texture_object *texObj,
 566                 struct gl_texture_image *texImage)
 567 {
 568    intelTexImage(ctx, 3, target, level,
 569                  internalFormat, width, height, depth, border,
 570                  format, type, pixels, unpack, texObj, texImage, 0, 0);
 571 }
 572
 573
 574 void
 575 intelTexImage2D(GLcontext * ctx,
 576                 GLenum target, GLint level,
 577                 GLint internalFormat,
 578                 GLint width, GLint height, GLint border,
 579                 GLenum format, GLenum type, const void *pixels,
 580                 const struct gl_pixelstore_attrib *unpack,
 581                 struct gl_texture_object *texObj,
 582                 struct gl_texture_image *texImage)
 583 {
 584    intelTexImage(ctx, 2, target, level,
 585                  internalFormat, width, height, 1, border,
 586                  format, type, pixels, unpack, texObj, texImage, 0, 0);
 587 }
 588
 589 void
 590 intelTexImage1D(GLcontext * ctx,
 591                 GLenum target, GLint level,
 592                 GLint internalFormat,
 593                 GLint width, GLint border,
 594                 GLenum format, GLenum type, const void *pixels,
 595                 const struct gl_pixelstore_attrib *unpack,
 596                 struct gl_texture_object *texObj,
 597                 struct gl_texture_image *texImage)
 598 {
 599    intelTexImage(ctx, 1, target, level,
 600                  internalFormat, width, 1, 1, border,
 601                  format, type, pixels, unpack, texObj, texImage, 0, 0);
 602 }
 603
 604 void intelCompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level,
 605                                 GLint internalFormat,
 606                                 GLint width, GLint height, GLint border,
 607                                 GLsizei imageSize, const GLvoid *data,
 608                                 struct gl_texture_object *texObj,
 609                                 struct gl_texture_image *texImage )
 610 {
 611    intelTexImage(ctx, 2, target, level,
 612                  internalFormat, width, height, 1, border,
 613                  0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, 1);
 614 }
 615
 616 /**
 617  * Need to map texture image into memory before copying image data,
 618  * then unmap it.
 619  */
 620 static void
 621 intel_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
 622                     GLenum format, GLenum type, GLvoid * pixels,
 623                     struct gl_texture_object *texObj,
 624                     struct gl_texture_image *texImage, int compressed)
 625 {
 626    struct intel_context *intel = intel_context(ctx);
 627    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 628
 629    /* Map */
 630    if (intelImage->mt) {
 631       /* Image is stored in hardware format in a buffer managed by the
 632        * kernel.  Need to explicitly map and unmap it.
 633        */
 634       intelImage->base.Data =
 635          intel_miptree_image_map(intel,
 636                                  intelImage->mt,
 637                                  intelImage->face,
 638                                  intelImage->level,
 639                                  &intelImage->base.RowStride,
 640                                  intelImage->base.ImageOffsets);
 641       intelImage->base.RowStride /= intelImage->mt->cpp;
 642    }
 643    else {
 644       /* Otherwise, the image should actually be stored in
 645        * intelImage->base.Data.  This is pretty confusing for
 646        * everybody, I'd much prefer to separate the two functions of
 647        * texImage->Data - storage for texture images in main memory
 648        * and access (ie mappings) of images.  In other words, we'd
 649        * create a new texImage->Map field and leave Data simply for
 650        * storage.
 651        */
 652       assert(intelImage->base.Data);
 653    }
 654
 655
 656    if (compressed) {
 657       _mesa_get_compressed_teximage(ctx, target, level, pixels,
 658                                     texObj, texImage);
 659    } else {
 660       _mesa_get_teximage(ctx, target, level, format, type, pixels,
 661                          texObj, texImage);
 662    }
 663
 664
 665    /* Unmap */
 666    if (intelImage->mt) {
 667       intel_miptree_image_unmap(intel, intelImage->mt);
 668       intelImage->base.Data = NULL;
 669    }
 670 }
 671
 672 void
 673 intelGetTexImage(GLcontext * ctx, GLenum target, GLint level,
 674                  GLenum format, GLenum type, GLvoid * pixels,
 675                  struct gl_texture_object *texObj,
 676                  struct gl_texture_image *texImage)
 677 {
 678    intel_get_tex_image(ctx, target, level, format, type, pixels,
 679                        texObj, texImage, 0);
 680
 681
 682 }
 683
 684 void
 685 intelGetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
 686                            GLvoid *pixels,
 687                            struct gl_texture_object *texObj,
 688                            struct gl_texture_image *texImage)
 689 {
 690    intel_get_tex_image(ctx, target, level, 0, 0, pixels,
 691                        texObj, texImage, 1);
 692 }
 693
 694 void
 695 intelSetTexOffset(__DRIcontext *pDRICtx, GLint texname,
 696                   unsigned long long offset, GLint depth, GLuint pitch)
 697 {
 698    struct intel_context *intel = pDRICtx->driverPrivate;
 699    struct gl_texture_object *tObj = _mesa_lookup_texture(&intel->ctx, texname);
 700    struct intel_texture_object *intelObj = intel_texture_object(tObj);
 701
 702    if (!intelObj)
 703       return;
 704
 705    if (intelObj->mt)
 706       intel_miptree_release(intel, &intelObj->mt);
 707
 708    intelObj->imageOverride = GL_TRUE;
 709    intelObj->depthOverride = depth;
 710    intelObj->pitchOverride = pitch;
 711
 712    if (offset)
 713       intelObj->textureOffset = offset;
 714 }
 715
 716 void
 717 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 718                    GLint glx_texture_format,
 719                    __DRIdrawable *dPriv)
 720 {
 721    struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
 722    struct intel_context *intel = pDRICtx->driverPrivate;
 723    struct intel_texture_object *intelObj;
 724    struct intel_texture_image *intelImage;
 725    struct intel_mipmap_tree *mt;
 726    struct intel_renderbuffer *rb;
 727    struct gl_texture_unit *texUnit;
 728    struct gl_texture_object *texObj;
 729    struct gl_texture_image *texImage;
 730    int level = 0, type, format, internalFormat;
 731
 732    texUnit = &intel->ctx.Texture.Unit[intel->ctx.Texture.CurrentUnit];
 733    texObj = _mesa_select_tex_object(&intel->ctx, texUnit, target);
 734    intelObj = intel_texture_object(texObj);
 735
 736    if (!intelObj)
 737       return;
 738
 739    intel_update_renderbuffers(pDRICtx, dPriv);
 740
 741    rb = intel_fb->color_rb[0];
 742    /* If the region isn't set, then intel_update_renderbuffers was unable
 743     * to get the buffers for the drawable.
 744     */
 745    if (rb->region == NULL)
 746       return;
 747
 748    type = GL_BGRA;
 749    format = GL_UNSIGNED_BYTE;
 750    if (glx_texture_format == GLX_TEXTURE_FORMAT_RGB_EXT)
 751       internalFormat = GL_RGB;
 752    else
 753       internalFormat = GL_RGBA;
 754
 755    mt = intel_miptree_create_for_region(intel, target,
 756                                         internalFormat,
 757                                         0, 0, rb->region, 1, 0);
 758    if (mt == NULL)
 759        return;
 760
 761    _mesa_lock_texture(&intel->ctx, texObj);
 762
 763    texImage = _mesa_get_tex_image(&intel->ctx, texObj, target, level);
 764    intelImage = intel_texture_image(texImage);
 765
 766    if (intelImage->mt) {
 767       intel_miptree_release(intel, &intelImage->mt);
 768       assert(!texImage->Data);
 769    }
 770    if (intelObj->mt)
 771       intel_miptree_release(intel, &intelObj->mt);
 772
 773    intelObj->mt = mt;
 774    _mesa_init_teximage_fields(&intel->ctx, target, texImage,
 775                               rb->region->width, rb->region->height, 1,
 776                               0, internalFormat);
 777
 778    intelImage->face = target_to_face(target);
 779    intelImage->level = level;
 780    texImage->TexFormat = intelChooseTextureFormat(&intel->ctx, internalFormat,
 781                                                   type, format);
 782    _mesa_set_fetch_functions(texImage, 2);
 783    texImage->RowStride = rb->region->pitch;
 784    intel_miptree_reference(&intelImage->mt, intelObj->mt);
 785
 786    if (!intel_miptree_match_image(intelObj->mt, &intelImage->base,
 787                                   intelImage->face, intelImage->level)) {
 788            fprintf(stderr, "miptree doesn't match image\n");
 789    }
 790
 791    _mesa_unlock_texture(&intel->ctx, texObj);
 792 }
 793
 794 void
 795 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 796 {
 797    /* The old interface didn't have the format argument, so copy our
 798     * implementation's behavior at the time.
 799     */
 800    intelSetTexBuffer2(pDRICtx, target, GLX_TEXTURE_FORMAT_RGBA_EXT, dPriv);
 801 }