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

   1
   2 #include "main/glheader.h"
   3 #include "main/macros.h"
   4 #include "main/mfeatures.h"
   5 #include "main/mtypes.h"
   6 #include "main/enums.h"
   7 #include "main/bufferobj.h"
   8 #include "main/context.h"
   9 #include "main/formats.h"
  10 #include "main/texcompress.h"
  11 #include "main/texstore.h"
  12 #include "main/texgetimage.h"
  13 #include "main/texobj.h"
  14 #include "main/teximage.h"
  15
  16 #include "intel_context.h"
  17 #include "intel_mipmap_tree.h"
  18 #include "intel_buffer_objects.h"
  19 #include "intel_batchbuffer.h"
  20 #include "intel_tex.h"
  21 #include "intel_blit.h"
  22 #include "intel_fbo.h"
  23
  24 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  25
  26 /* Functions to store texture images.  Where possible, mipmap_tree's
  27  * will be created or further instantiated with image data, otherwise
  28  * images will be stored in malloc'd memory.  A validation step is
  29  * required to pull those images into a mipmap tree, or otherwise
  30  * decide a fallback is required.
  31  */
  32
  33
  34 static int
  35 logbase2(int n)
  36 {
  37    GLint i = 1;
  38    GLint log2 = 0;
  39
  40    while (n > i) {
  41       i *= 2;
  42       log2++;
  43    }
  44
  45    return log2;
  46 }
  47
  48
  49 /* Otherwise, store it in memory if (Border != 0) or (any dimension ==
  50  * 1).
  51  *
  52  * Otherwise, if max_level >= level >= min_level, create tree with
  53  * space for textures from min_level down to max_level.
  54  *
  55  * Otherwise, create tree with space for textures from (level
  56  * 0)..(1x1).  Consider pruning this tree at a validation if the
  57  * saving is worth it.
  58  */
  59 static struct intel_mipmap_tree *
  60 intel_miptree_create_for_teximage(struct intel_context *intel,
  61                                   struct intel_texture_object *intelObj,
  62                                   struct intel_texture_image *intelImage,
  63                                   GLboolean expect_accelerated_upload)
  64 {
  65    GLuint firstLevel;
  66    GLuint lastLevel;
  67    GLuint width = intelImage->base.Width;
  68    GLuint height = intelImage->base.Height;
  69    GLuint depth = intelImage->base.Depth;
  70    GLuint i, comp_byte = 0;
  71    GLuint texelBytes;
  72
  73    DBG("%s\n", __FUNCTION__);
  74
  75    if (intelImage->base.Border)
  76       return NULL;
  77
  78    if (intelImage->level > intelObj->base.BaseLevel &&
  79        (intelImage->base.Width == 1 ||
  80         (intelObj->base.Target != GL_TEXTURE_1D &&
  81          intelImage->base.Height == 1) ||
  82         (intelObj->base.Target == GL_TEXTURE_3D &&
  83          intelImage->base.Depth == 1))) {
  84       /* For this combination, we're at some lower mipmap level and
  85        * some important dimension is 1.  We can't extrapolate up to a
  86        * likely base level width/height/depth for a full mipmap stack
  87        * from this info, so just allocate this one level.
  88        */
  89       firstLevel = intelImage->level;
  90       lastLevel = intelImage->level;
  91    } else {
  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       /* Figure out image dimensions at start level. */
 101       for (i = intelImage->level; i > firstLevel; i--) {
 102          width <<= 1;
 103          if (height != 1)
 104             height <<= 1;
 105          if (depth != 1)
 106             depth <<= 1;
 107       }
 108
 109       /* Guess a reasonable value for lastLevel.  This is probably going
 110        * to be wrong fairly often and might mean that we have to look at
 111        * resizable buffers, or require that buffers implement lazy
 112        * pagetable arrangements.
 113        */
 114       if ((intelObj->base.MinFilter == GL_NEAREST ||
 115            intelObj->base.MinFilter == GL_LINEAR) &&
 116           intelImage->level == firstLevel &&
 117           (intel->gen < 4 || firstLevel == 0)) {
 118          lastLevel = firstLevel;
 119       } else {
 120          lastLevel = firstLevel + logbase2(MAX2(MAX2(width, height), depth));
 121       }
 122    }
 123
 124    if (_mesa_is_format_compressed(intelImage->base.TexFormat))
 125       comp_byte = intel_compressed_num_bytes(intelImage->base.TexFormat);
 126
 127    texelBytes = _mesa_get_format_bytes(intelImage->base.TexFormat);
 128
 129    return intel_miptree_create(intel,
 130                                intelObj->base.Target,
 131                                intelImage->base._BaseFormat,
 132                                intelImage->base.InternalFormat,
 133                                firstLevel,
 134                                lastLevel,
 135                                width,
 136                                height,
 137                                depth,
 138                                texelBytes,
 139                                comp_byte,
 140                                expect_accelerated_upload);
 141 }
 142
 143
 144
 145
 146 static GLuint
 147 target_to_face(GLenum target)
 148 {
 149    switch (target) {
 150    case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
 151    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
 152    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
 153    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
 154    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
 155    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
 156       return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
 157    default:
 158       return 0;
 159    }
 160 }
 161
 162 /* There are actually quite a few combinations this will work for,
 163  * more than what I've listed here.
 164  */
 165 static GLboolean
 166 check_pbo_format(GLint internalFormat,
 167                  GLenum format, GLenum type,
 168                  gl_format mesa_format)
 169 {
 170    switch (internalFormat) {
 171    case 4:
 172    case GL_RGBA:
 173    case GL_RGBA8:
 174       return (format == GL_BGRA &&
 175               (type == GL_UNSIGNED_BYTE ||
 176                type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
 177               mesa_format == MESA_FORMAT_ARGB8888);
 178    case 3:
 179    case GL_RGB:
 180       return (format == GL_RGB &&
 181               type == GL_UNSIGNED_SHORT_5_6_5 &&
 182               mesa_format == MESA_FORMAT_RGB565);
 183    case 1:
 184    case GL_LUMINANCE:
 185       return (format == GL_LUMINANCE &&
 186               type == GL_UNSIGNED_BYTE &&
 187               mesa_format == MESA_FORMAT_L8);
 188    case GL_YCBCR_MESA:
 189       return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
 190    default:
 191       return GL_FALSE;
 192    }
 193 }
 194
 195
 196 /* XXX: Do this for TexSubImage also:
 197  */
 198 static GLboolean
 199 try_pbo_upload(struct intel_context *intel,
 200                struct intel_texture_image *intelImage,
 201                const struct gl_pixelstore_attrib *unpack,
 202                GLint internalFormat,
 203                GLint width, GLint height,
 204                GLenum format, GLenum type, const void *pixels)
 205 {
 206    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 207    GLuint src_offset, src_stride;
 208    GLuint dst_x, dst_y, dst_stride;
 209    drm_intel_bo *dst_buffer = intel_region_buffer(intel,
 210                                                   intelImage->mt->region,
 211                                                   INTEL_WRITE_FULL);
 212
 213    if (!_mesa_is_bufferobj(unpack->BufferObj) ||
 214        intel->ctx._ImageTransferState ||
 215        unpack->SkipPixels || unpack->SkipRows) {
 216       DBG("%s: failure 1\n", __FUNCTION__);
 217       return GL_FALSE;
 218    }
 219
 220    /* note: potential 64-bit ptr to 32-bit int cast */
 221    src_offset = (GLuint) (unsigned long) pixels;
 222
 223    if (unpack->RowLength > 0)
 224       src_stride = unpack->RowLength;
 225    else
 226       src_stride = width;
 227
 228    intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
 229                                   intelImage->face, 0,
 230                                   &dst_x, &dst_y);
 231
 232    dst_stride = intelImage->mt->region->pitch;
 233
 234    if (drm_intel_bo_references(intel->batch->buf, dst_buffer))
 235       intel_flush(&intel->ctx);
 236
 237    {
 238       drm_intel_bo *src_buffer = intel_bufferobj_buffer(intel, pbo, INTEL_READ);
 239
 240       if (!intelEmitCopyBlit(intel,
 241                              intelImage->mt->cpp,
 242                              src_stride, src_buffer, src_offset, GL_FALSE,
 243                              dst_stride, dst_buffer, 0,
 244                              intelImage->mt->region->tiling,
 245                              0, 0, dst_x, dst_y, width, height,
 246                              GL_COPY)) {
 247          return GL_FALSE;
 248       }
 249    }
 250
 251    return GL_TRUE;
 252 }
 253
 254
 255 static GLboolean
 256 try_pbo_zcopy(struct intel_context *intel,
 257               struct intel_texture_image *intelImage,
 258               const struct gl_pixelstore_attrib *unpack,
 259               GLint internalFormat,
 260               GLint width, GLint height,
 261               GLenum format, GLenum type, const void *pixels)
 262 {
 263    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 264    GLuint src_offset, src_stride;
 265    GLuint dst_x, dst_y, dst_stride;
 266
 267    if (!_mesa_is_bufferobj(unpack->BufferObj) ||
 268        intel->ctx._ImageTransferState ||
 269        unpack->SkipPixels || unpack->SkipRows) {
 270       DBG("%s: failure 1\n", __FUNCTION__);
 271       return GL_FALSE;
 272    }
 273
 274    /* note: potential 64-bit ptr to 32-bit int cast */
 275    src_offset = (GLuint) (unsigned long) pixels;
 276
 277    if (unpack->RowLength > 0)
 278       src_stride = unpack->RowLength;
 279    else
 280       src_stride = width;
 281
 282    intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
 283                                   intelImage->face, 0,
 284                                   &dst_x, &dst_y);
 285
 286    dst_stride = intelImage->mt->region->pitch;
 287
 288    if (src_stride != dst_stride || dst_x != 0 || dst_y != 0 ||
 289        src_offset != 0) {
 290       DBG("%s: failure 2\n", __FUNCTION__);
 291       return GL_FALSE;
 292    }
 293
 294    intel_region_attach_pbo(intel, intelImage->mt->region, pbo);
 295
 296    return GL_TRUE;
 297 }
 298
 299
 300 static void
 301 intelTexImage(struct gl_context * ctx,
 302               GLint dims,
 303               GLenum target, GLint level,
 304               GLint internalFormat,
 305               GLint width, GLint height, GLint depth,
 306               GLint border,
 307               GLenum format, GLenum type, const void *pixels,
 308               const struct gl_pixelstore_attrib *unpack,
 309               struct gl_texture_object *texObj,
 310               struct gl_texture_image *texImage, GLsizei imageSize,
 311               GLboolean compressed)
 312 {
 313    struct intel_context *intel = intel_context(ctx);
 314    struct intel_texture_object *intelObj = intel_texture_object(texObj);
 315    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 316    GLint texelBytes, sizeInBytes;
 317    GLuint dstRowStride = 0, srcRowStride = texImage->RowStride;
 318
 319    DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
 320        _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
 321
 322    intelImage->face = target_to_face(target);
 323    intelImage->level = level;
 324
 325    if (_mesa_is_format_compressed(texImage->TexFormat)) {
 326       texelBytes = 0;
 327    }
 328    else {
 329       texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
 330
 331       if (!intelImage->mt) {
 332           assert(texImage->RowStride == width);
 333       }
 334    }
 335
 336    /* Release the reference to a potentially orphaned buffer.
 337     * Release any old malloced memory.
 338     */
 339    if (intelImage->mt) {
 340       intel_miptree_release(intel, &intelImage->mt);
 341       assert(!texImage->Data);
 342    }
 343    else if (texImage->Data) {
 344       _mesa_free_texmemory(texImage->Data);
 345       texImage->Data = NULL;
 346    }
 347
 348    assert(!intelImage->mt);
 349
 350    if (intelObj->mt &&
 351        intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
 352       /* Use an existing miptree when possible */
 353       intel_miptree_reference(&intelImage->mt, intelObj->mt);
 354       assert(intelImage->mt);
 355    } else if (intelImage->base.Border == 0) {
 356       /* Didn't fit in the object miptree, but it's suitable for inclusion in
 357        * a miptree, so create one just for our level and store it in the image.
 358        * It'll get moved into the object miptree at validate time.
 359        */
 360       intelImage->mt = intel_miptree_create_for_teximage(intel, intelObj,
 361                                                          intelImage,
 362                                                          pixels == NULL);
 363
 364       /* Even if the object currently has a mipmap tree associated
 365        * with it, this one is a more likely candidate to represent the
 366        * whole object since our level didn't fit what was there
 367        * before, and any lower levels would fit into our miptree.
 368        */
 369       if (intelImage->mt)
 370          intel_miptree_reference(&intelObj->mt, intelImage->mt);
 371    }
 372
 373    /* PBO fastpaths:
 374     */
 375    if (dims <= 2 &&
 376        intelImage->mt &&
 377        _mesa_is_bufferobj(unpack->BufferObj) &&
 378        check_pbo_format(internalFormat, format,
 379                         type, intelImage->base.TexFormat)) {
 380
 381       DBG("trying pbo upload\n");
 382
 383       /* Attempt to texture directly from PBO data (zero copy upload).
 384        *
 385        * Currently disable as it can lead to worse as well as better
 386        * performance (in particular when intel_region_cow() is
 387        * required).
 388        */
 389       if (intelObj->mt == intelImage->mt &&
 390           intelObj->mt->first_level == level &&
 391           intelObj->mt->last_level == level) {
 392
 393          if (try_pbo_zcopy(intel, intelImage, unpack,
 394                            internalFormat,
 395                            width, height, format, type, pixels)) {
 396
 397             DBG("pbo zcopy upload succeeded\n");
 398             return;
 399          }
 400       }
 401
 402
 403       /* Otherwise, attempt to use the blitter for PBO image uploads.
 404        */
 405       if (try_pbo_upload(intel, intelImage, unpack,
 406                          internalFormat,
 407                          width, height, format, type, pixels)) {
 408          DBG("pbo upload succeeded\n");
 409          return;
 410       }
 411
 412       DBG("pbo upload failed\n");
 413    }
 414
 415    /* intelCopyTexImage calls this function with pixels == NULL, with
 416     * the expectation that the mipmap tree will be set up but nothing
 417     * more will be done.  This is where those calls return:
 418     */
 419    if (compressed) {
 420       pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
 421                                                       unpack,
 422                                                       "glCompressedTexImage");
 423    } else {
 424       pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
 425                                            format, type,
 426                                            pixels, unpack, "glTexImage");
 427    }
 428
 429    if (intelImage->mt) {
 430       if (pixels != NULL) {
 431          /* Flush any queued rendering with the texture before mapping. */
 432          if (drm_intel_bo_references(intel->batch->buf,
 433                                      intelImage->mt->region->buffer)) {
 434             intel_flush(ctx);
 435          }
 436          texImage->Data = intel_miptree_image_map(intel,
 437                                                   intelImage->mt,
 438                                                   intelImage->face,
 439                                                   intelImage->level,
 440                                                   &dstRowStride,
 441                                                   intelImage->base.ImageOffsets);
 442       }
 443
 444       texImage->RowStride = dstRowStride / intelImage->mt->cpp;
 445    }
 446    else {
 447       /* Allocate regular memory and store the image there temporarily.   */
 448       if (_mesa_is_format_compressed(texImage->TexFormat)) {
 449          sizeInBytes = _mesa_format_image_size(texImage->TexFormat,
 450                                                texImage->Width,
 451                                                texImage->Height,
 452                                                texImage->Depth);
 453          dstRowStride =
 454             _mesa_format_row_stride(texImage->TexFormat, width);
 455          assert(dims != 3);
 456       }
 457       else {
 458          dstRowStride = width * texelBytes;
 459          sizeInBytes = depth * dstRowStride * height;
 460       }
 461
 462       texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
 463    }
 464
 465    DBG("Upload image %dx%dx%d row_len %d "
 466        "pitch %d pixels %d compressed %d\n",
 467        width, height, depth, width * texelBytes, dstRowStride,
 468        pixels ? 1 : 0, compressed);
 469
 470    /* Copy data.  Would like to know when it's ok for us to eg. use
 471     * the blitter to copy.  Or, use the hardware to do the format
 472     * conversion and copy:
 473     */
 474    if (pixels) {
 475        if (compressed) {
 476            if (intelImage->mt) {
 477                struct intel_region *dst = intelImage->mt->region;
 478                _mesa_copy_rect(texImage->Data, dst->cpp, dst->pitch,
 479                                0, 0,
 480                                intelImage->mt->level[level].width,
 481                                (intelImage->mt->level[level].height+3)/4,
 482                                pixels,
 483                                srcRowStride,
 484                                0, 0);
 485            }
 486            else {
 487                memcpy(texImage->Data, pixels, imageSize);
 488            }
 489        }
 490        else if (!_mesa_texstore(ctx, dims,
 491                                 texImage->_BaseFormat,
 492                                 texImage->TexFormat,
 493                                 texImage->Data, 0, 0, 0, /* dstX/Y/Zoffset */
 494                                 dstRowStride,
 495                                 texImage->ImageOffsets,
 496                                 width, height, depth,
 497                                 format, type, pixels, unpack)) {
 498           _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
 499        }
 500    }
 501
 502    _mesa_unmap_teximage_pbo(ctx, unpack);
 503
 504    if (intelImage->mt) {
 505       if (pixels != NULL)
 506          intel_miptree_image_unmap(intel, intelImage->mt);
 507       texImage->Data = NULL;
 508    }
 509 }
 510
 511
 512 static void
 513 intelTexImage3D(struct gl_context * ctx,
 514                 GLenum target, GLint level,
 515                 GLint internalFormat,
 516                 GLint width, GLint height, GLint depth,
 517                 GLint border,
 518                 GLenum format, GLenum type, const void *pixels,
 519                 const struct gl_pixelstore_attrib *unpack,
 520                 struct gl_texture_object *texObj,
 521                 struct gl_texture_image *texImage)
 522 {
 523    intelTexImage(ctx, 3, target, level,
 524                  internalFormat, width, height, depth, border,
 525                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 526 }
 527
 528
 529 static void
 530 intelTexImage2D(struct gl_context * ctx,
 531                 GLenum target, GLint level,
 532                 GLint internalFormat,
 533                 GLint width, GLint height, GLint border,
 534                 GLenum format, GLenum type, const void *pixels,
 535                 const struct gl_pixelstore_attrib *unpack,
 536                 struct gl_texture_object *texObj,
 537                 struct gl_texture_image *texImage)
 538 {
 539    intelTexImage(ctx, 2, target, level,
 540                  internalFormat, width, height, 1, border,
 541                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 542 }
 543
 544
 545 static void
 546 intelTexImage1D(struct gl_context * ctx,
 547                 GLenum target, GLint level,
 548                 GLint internalFormat,
 549                 GLint width, GLint border,
 550                 GLenum format, GLenum type, const void *pixels,
 551                 const struct gl_pixelstore_attrib *unpack,
 552                 struct gl_texture_object *texObj,
 553                 struct gl_texture_image *texImage)
 554 {
 555    intelTexImage(ctx, 1, target, level,
 556                  internalFormat, width, 1, 1, border,
 557                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 558 }
 559
 560
 561 static void
 562 intelCompressedTexImage2D( struct gl_context *ctx, GLenum target, GLint level,
 563                            GLint internalFormat,
 564                            GLint width, GLint height, GLint border,
 565                            GLsizei imageSize, const GLvoid *data,
 566                            struct gl_texture_object *texObj,
 567                            struct gl_texture_image *texImage )
 568 {
 569    intelTexImage(ctx, 2, target, level,
 570                  internalFormat, width, height, 1, border,
 571                  0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
 572 }
 573
 574
 575 /**
 576  * Need to map texture image into memory before copying image data,
 577  * then unmap it.
 578  */
 579 static void
 580 intel_get_tex_image(struct gl_context * ctx, GLenum target, GLint level,
 581                     GLenum format, GLenum type, GLvoid * pixels,
 582                     struct gl_texture_object *texObj,
 583                     struct gl_texture_image *texImage, GLboolean compressed)
 584 {
 585    struct intel_context *intel = intel_context(ctx);
 586    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 587
 588    /* If we're reading from a texture that has been rendered to, need to
 589     * make sure rendering is complete.
 590     * We could probably predicate this on texObj->_RenderToTexture
 591     */
 592    intel_flush(ctx);
 593
 594    /* Map */
 595    if (intelImage->mt) {
 596       /* Image is stored in hardware format in a buffer managed by the
 597        * kernel.  Need to explicitly map and unmap it.
 598        */
 599       intelImage->base.Data =
 600          intel_miptree_image_map(intel,
 601                                  intelImage->mt,
 602                                  intelImage->face,
 603                                  intelImage->level,
 604                                  &intelImage->base.RowStride,
 605                                  intelImage->base.ImageOffsets);
 606       intelImage->base.RowStride /= intelImage->mt->cpp;
 607    }
 608    else {
 609       /* Otherwise, the image should actually be stored in
 610        * intelImage->base.Data.  This is pretty confusing for
 611        * everybody, I'd much prefer to separate the two functions of
 612        * texImage->Data - storage for texture images in main memory
 613        * and access (ie mappings) of images.  In other words, we'd
 614        * create a new texImage->Map field and leave Data simply for
 615        * storage.
 616        */
 617       assert(intelImage->base.Data);
 618    }
 619
 620
 621    if (compressed) {
 622       _mesa_get_compressed_teximage(ctx, target, level, pixels,
 623                                     texObj, texImage);
 624    }
 625    else {
 626       _mesa_get_teximage(ctx, target, level, format, type, pixels,
 627                          texObj, texImage);
 628    }
 629
 630
 631    /* Unmap */
 632    if (intelImage->mt) {
 633       intel_miptree_image_unmap(intel, intelImage->mt);
 634       intelImage->base.Data = NULL;
 635    }
 636 }
 637
 638
 639 static void
 640 intelGetTexImage(struct gl_context * ctx, GLenum target, GLint level,
 641                  GLenum format, GLenum type, GLvoid * pixels,
 642                  struct gl_texture_object *texObj,
 643                  struct gl_texture_image *texImage)
 644 {
 645    intel_get_tex_image(ctx, target, level, format, type, pixels,
 646                        texObj, texImage, GL_FALSE);
 647 }
 648
 649
 650 static void
 651 intelGetCompressedTexImage(struct gl_context *ctx, GLenum target, GLint level,
 652                            GLvoid *pixels,
 653                            struct gl_texture_object *texObj,
 654                            struct gl_texture_image *texImage)
 655 {
 656    intel_get_tex_image(ctx, target, level, 0, 0, pixels,
 657                        texObj, texImage, GL_TRUE);
 658 }
 659
 660 void
 661 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 662                    GLint texture_format,
 663                    __DRIdrawable *dPriv)
 664 {
 665    struct gl_framebuffer *fb = dPriv->driverPrivate;
 666    struct intel_context *intel = pDRICtx->driverPrivate;
 667    struct gl_context *ctx = &intel->ctx;
 668    struct intel_texture_object *intelObj;
 669    struct intel_texture_image *intelImage;
 670    struct intel_mipmap_tree *mt;
 671    struct intel_renderbuffer *rb;
 672    struct gl_texture_object *texObj;
 673    struct gl_texture_image *texImage;
 674    int level = 0, internalFormat;
 675    gl_format texFormat;
 676
 677    texObj = _mesa_get_current_tex_object(ctx, target);
 678    intelObj = intel_texture_object(texObj);
 679
 680    if (!intelObj)
 681       return;
 682
 683    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 684        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 685       intel_update_renderbuffers(pDRICtx, dPriv);
 686
 687    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 688    /* If the region isn't set, then intel_update_renderbuffers was unable
 689     * to get the buffers for the drawable.
 690     */
 691    if (rb->region == NULL)
 692       return;
 693
 694    if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 695       internalFormat = GL_RGB;
 696       texFormat = MESA_FORMAT_XRGB8888;
 697    }
 698    else {
 699       internalFormat = GL_RGBA;
 700       texFormat = MESA_FORMAT_ARGB8888;
 701    }
 702
 703    mt = intel_miptree_create_for_region(intel, target,
 704                                         internalFormat, rb->region, 1, 0);
 705    if (mt == NULL)
 706        return;
 707
 708    _mesa_lock_texture(&intel->ctx, texObj);
 709
 710    texImage = _mesa_get_tex_image(&intel->ctx, texObj, target, level);
 711    intelImage = intel_texture_image(texImage);
 712
 713    if (intelImage->mt) {
 714       intel_miptree_release(intel, &intelImage->mt);
 715       assert(!texImage->Data);
 716    }
 717    if (intelObj->mt)
 718       intel_miptree_release(intel, &intelObj->mt);
 719
 720    intelObj->mt = mt;
 721
 722    _mesa_init_teximage_fields(&intel->ctx, target, texImage,
 723                               rb->region->width, rb->region->height, 1,
 724                               0, internalFormat, texFormat);
 725
 726    intelImage->face = target_to_face(target);
 727    intelImage->level = level;
 728    texImage->RowStride = rb->region->pitch;
 729    intel_miptree_reference(&intelImage->mt, intelObj->mt);
 730
 731    if (!intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
 732            fprintf(stderr, "miptree doesn't match image\n");
 733    }
 734
 735    _mesa_unlock_texture(&intel->ctx, texObj);
 736 }
 737
 738 void
 739 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 740 {
 741    /* The old interface didn't have the format argument, so copy our
 742     * implementation's behavior at the time.
 743     */
 744    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 745 }
 746
 747 #if FEATURE_OES_EGL_image
 748 static void
 749 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 750                               struct gl_texture_object *texObj,
 751                               struct gl_texture_image *texImage,
 752                               GLeglImageOES image_handle)
 753 {
 754    struct intel_context *intel = intel_context(ctx);
 755    struct intel_texture_object *intelObj = intel_texture_object(texObj);
 756    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 757    struct intel_mipmap_tree *mt;
 758    __DRIscreen *screen;
 759    __DRIimage *image;
 760
 761    screen = intel->intelScreen->driScrnPriv;
 762    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 763                                               screen->loaderPrivate);
 764    if (image == NULL)
 765       return;
 766
 767    mt = intel_miptree_create_for_region(intel, target,
 768                                         image->internal_format,
 769                                         image->region, 1, 0);
 770    if (mt == NULL)
 771        return;
 772
 773    if (intelImage->mt) {
 774       intel_miptree_release(intel, &intelImage->mt);
 775       assert(!texImage->Data);
 776    }
 777    if (intelObj->mt)
 778       intel_miptree_release(intel, &intelObj->mt);
 779
 780    intelObj->mt = mt;
 781    _mesa_init_teximage_fields(&intel->ctx, target, texImage,
 782                               image->region->width, image->region->height, 1,
 783                               0, image->internal_format, image->format);
 784
 785    intelImage->face = target_to_face(target);
 786    intelImage->level = 0;
 787    texImage->RowStride = image->region->pitch;
 788    intel_miptree_reference(&intelImage->mt, intelObj->mt);
 789
 790    if (!intel_miptree_match_image(intelObj->mt, &intelImage->base))
 791       fprintf(stderr, "miptree doesn't match image\n");
 792 }
 793 #endif
 794
 795 void
 796 intelInitTextureImageFuncs(struct dd_function_table *functions)
 797 {
 798    functions->TexImage1D = intelTexImage1D;
 799    functions->TexImage2D = intelTexImage2D;
 800    functions->TexImage3D = intelTexImage3D;
 801    functions->GetTexImage = intelGetTexImage;
 802
 803    functions->CompressedTexImage2D = intelCompressedTexImage2D;
 804    functions->GetCompressedTexImage = intelGetCompressedTexImage;
 805
 806 #if FEATURE_OES_EGL_image
 807    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 808 #endif
 809 }