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

   1
   2 #include "main/glheader.h"
   3 #include "main/macros.h"
   4 #include "main/mtypes.h"
   5 #include "main/enums.h"
   6 #include "main/bufferobj.h"
   7 #include "main/context.h"
   8 #include "main/formats.h"
   9 #include "main/texcompress.h"
  10 #include "main/texstore.h"
  11 #include "main/texgetimage.h"
  12 #include "main/texobj.h"
  13 #include "main/teximage.h"
  14
  15 #include "intel_context.h"
  16 #include "intel_mipmap_tree.h"
  17 #include "intel_buffer_objects.h"
  18 #include "intel_batchbuffer.h"
  19 #include "intel_tex.h"
  20 #include "intel_blit.h"
  21 #include "intel_fbo.h"
  22
  23 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  24
  25 /* Functions to store texture images.  Where possible, mipmap_tree's
  26  * will be created or further instantiated with image data, otherwise
  27  * images will be stored in malloc'd memory.  A validation step is
  28  * required to pull those images into a mipmap tree, or otherwise
  29  * decide a fallback is required.
  30  */
  31
  32
  33 static int
  34 logbase2(int n)
  35 {
  36    GLint i = 1;
  37    GLint log2 = 0;
  38
  39    while (n > i) {
  40       i *= 2;
  41       log2++;
  42    }
  43
  44    return log2;
  45 }
  46
  47
  48 /* Otherwise, store it in memory if (Border != 0) or (any dimension ==
  49  * 1).
  50  *
  51  * Otherwise, if max_level >= level >= min_level, create tree with
  52  * space for textures from min_level down to max_level.
  53  *
  54  * Otherwise, create tree with space for textures from (level
  55  * 0)..(1x1).  Consider pruning this tree at a validation if the
  56  * saving is worth it.
  57  */
  58 static void
  59 guess_and_alloc_mipmap_tree(struct intel_context *intel,
  60                             struct intel_texture_object *intelObj,
  61                             struct intel_texture_image *intelImage,
  62                             GLboolean expect_accelerated_upload)
  63 {
  64    GLuint firstLevel;
  65    GLuint lastLevel;
  66    GLuint width = intelImage->base.Width;
  67    GLuint height = intelImage->base.Height;
  68    GLuint depth = intelImage->base.Depth;
  69    GLuint l2width, l2height, l2depth;
  70    GLuint i, comp_byte = 0;
  71    GLuint texelBytes;
  72
  73    DBG("%s\n", __FUNCTION__);
  74
  75    if (intelImage->base.Border)
  76       return;
  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       return;
  85
  86    /* If this image disrespects BaseLevel, allocate from level zero.
  87     * Usually BaseLevel == 0, so it's unlikely to happen.
  88     */
  89    if (intelImage->level < intelObj->base.BaseLevel)
  90       firstLevel = 0;
  91    else
  92       firstLevel = intelObj->base.BaseLevel;
  93
  94
  95    /* Figure out image dimensions at start level.
  96     */
  97    for (i = intelImage->level; i > firstLevel; i--) {
  98       width <<= 1;
  99       if (height != 1)
 100          height <<= 1;
 101       if (depth != 1)
 102          depth <<= 1;
 103    }
 104
 105    /* Guess a reasonable value for lastLevel.  This is probably going
 106     * to be wrong fairly often and might mean that we have to look at
 107     * resizable buffers, or require that buffers implement lazy
 108     * pagetable arrangements.
 109     */
 110    if ((intelObj->base.MinFilter == GL_NEAREST ||
 111         intelObj->base.MinFilter == GL_LINEAR) &&
 112        intelImage->level == firstLevel &&
 113        (intel->gen < 4 || firstLevel == 0)) {
 114       lastLevel = firstLevel;
 115    }
 116    else {
 117       l2width = logbase2(width);
 118       l2height = logbase2(height);
 119       l2depth = logbase2(depth);
 120       lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth);
 121    }
 122
 123    assert(!intelObj->mt);
 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    intelObj->mt = 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    DBG("%s - success\n", __FUNCTION__);
 143 }
 144
 145
 146
 147
 148 static GLuint
 149 target_to_face(GLenum target)
 150 {
 151    switch (target) {
 152    case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
 153    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
 154    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
 155    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
 156    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
 157    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
 158       return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
 159    default:
 160       return 0;
 161    }
 162 }
 163
 164 /* There are actually quite a few combinations this will work for,
 165  * more than what I've listed here.
 166  */
 167 static GLboolean
 168 check_pbo_format(GLint internalFormat,
 169                  GLenum format, GLenum type,
 170                  gl_format mesa_format)
 171 {
 172    switch (internalFormat) {
 173    case 4:
 174    case GL_RGBA:
 175    case GL_RGBA8:
 176       return (format == GL_BGRA &&
 177               (type == GL_UNSIGNED_BYTE ||
 178                type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
 179               mesa_format == MESA_FORMAT_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_FORMAT_RGB565);
 185    case 1:
 186    case GL_LUMINANCE:
 187       return (format == GL_LUMINANCE &&
 188               type == GL_UNSIGNED_BYTE &&
 189               mesa_format == MESA_FORMAT_L8);
 190    case GL_YCBCR_MESA:
 191       return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
 192    default:
 193       return GL_FALSE;
 194    }
 195 }
 196
 197
 198 /* XXX: Do this for TexSubImage also:
 199  */
 200 static GLboolean
 201 try_pbo_upload(struct intel_context *intel,
 202                struct intel_texture_image *intelImage,
 203                const struct gl_pixelstore_attrib *unpack,
 204                GLint internalFormat,
 205                GLint width, GLint height,
 206                GLenum format, GLenum type, const void *pixels)
 207 {
 208    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 209    GLuint src_offset, src_stride;
 210    GLuint dst_x, dst_y, dst_stride;
 211    drm_intel_bo *dst_buffer = intel_region_buffer(intel,
 212                                                   intelImage->mt->region,
 213                                                   INTEL_WRITE_FULL);
 214
 215    if (!_mesa_is_bufferobj(unpack->BufferObj) ||
 216        intel->ctx._ImageTransferState ||
 217        unpack->SkipPixels || unpack->SkipRows) {
 218       DBG("%s: failure 1\n", __FUNCTION__);
 219       return GL_FALSE;
 220    }
 221
 222    /* note: potential 64-bit ptr to 32-bit int cast */
 223    src_offset = (GLuint) (unsigned long) pixels;
 224
 225    if (unpack->RowLength > 0)
 226       src_stride = unpack->RowLength;
 227    else
 228       src_stride = width;
 229
 230    intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
 231                                   intelImage->face, 0,
 232                                   &dst_x, &dst_y);
 233
 234    dst_stride = intelImage->mt->region->pitch;
 235
 236    if (drm_intel_bo_references(intel->batch->buf, dst_buffer))
 237       intel_flush(&intel->ctx);
 238
 239    {
 240       drm_intel_bo *src_buffer = intel_bufferobj_buffer(intel, pbo, INTEL_READ);
 241
 242       if (!intelEmitCopyBlit(intel,
 243                              intelImage->mt->cpp,
 244                              src_stride, src_buffer, src_offset, GL_FALSE,
 245                              dst_stride, dst_buffer, 0,
 246                              intelImage->mt->region->tiling,
 247                              0, 0, dst_x, dst_y, width, height,
 248                              GL_COPY)) {
 249          return GL_FALSE;
 250       }
 251    }
 252
 253    return GL_TRUE;
 254 }
 255
 256
 257 static GLboolean
 258 try_pbo_zcopy(struct intel_context *intel,
 259               struct intel_texture_image *intelImage,
 260               const struct gl_pixelstore_attrib *unpack,
 261               GLint internalFormat,
 262               GLint width, GLint height,
 263               GLenum format, GLenum type, const void *pixels)
 264 {
 265    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 266    GLuint src_offset, src_stride;
 267    GLuint dst_x, dst_y, dst_stride;
 268
 269    if (!_mesa_is_bufferobj(unpack->BufferObj) ||
 270        intel->ctx._ImageTransferState ||
 271        unpack->SkipPixels || unpack->SkipRows) {
 272       DBG("%s: failure 1\n", __FUNCTION__);
 273       return GL_FALSE;
 274    }
 275
 276    /* note: potential 64-bit ptr to 32-bit int cast */
 277    src_offset = (GLuint) (unsigned long) pixels;
 278
 279    if (unpack->RowLength > 0)
 280       src_stride = unpack->RowLength;
 281    else
 282       src_stride = width;
 283
 284    intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
 285                                   intelImage->face, 0,
 286                                   &dst_x, &dst_y);
 287
 288    dst_stride = intelImage->mt->region->pitch;
 289
 290    if (src_stride != dst_stride || dst_x != 0 || dst_y != 0 ||
 291        src_offset != 0) {
 292       DBG("%s: failure 2\n", __FUNCTION__);
 293       return GL_FALSE;
 294    }
 295
 296    intel_region_attach_pbo(intel, intelImage->mt->region, pbo);
 297
 298    return GL_TRUE;
 299 }
 300
 301
 302 static void
 303 intelTexImage(struct gl_context * ctx,
 304               GLint dims,
 305               GLenum target, GLint level,
 306               GLint internalFormat,
 307               GLint width, GLint height, GLint depth,
 308               GLint border,
 309               GLenum format, GLenum type, const void *pixels,
 310               const struct gl_pixelstore_attrib *unpack,
 311               struct gl_texture_object *texObj,
 312               struct gl_texture_image *texImage, GLsizei imageSize,
 313               GLboolean compressed)
 314 {
 315    struct intel_context *intel = intel_context(ctx);
 316    struct intel_texture_object *intelObj = intel_texture_object(texObj);
 317    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 318    GLint texelBytes, sizeInBytes;
 319    GLuint dstRowStride = 0, srcRowStride = texImage->RowStride;
 320
 321    DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
 322        _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
 323
 324    intelImage->face = target_to_face(target);
 325    intelImage->level = level;
 326
 327    if (_mesa_is_format_compressed(texImage->TexFormat)) {
 328       texelBytes = 0;
 329    }
 330    else {
 331       texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
 332
 333       if (!intelImage->mt) {
 334           assert(texImage->RowStride == width);
 335       }
 336    }
 337
 338    /* Release the reference to a potentially orphaned buffer.
 339     * Release any old malloced memory.
 340     */
 341    if (intelImage->mt) {
 342       intel_miptree_release(intel, &intelImage->mt);
 343       assert(!texImage->Data);
 344    }
 345    else if (texImage->Data) {
 346       _mesa_free_texmemory(texImage->Data);
 347       texImage->Data = NULL;
 348    }
 349
 350    /* If this is the only texture image in the tree, could call
 351     * bmBufferData with NULL data to free the old block and avoid
 352     * waiting on any outstanding fences.
 353     */
 354    if (intelObj->mt &&
 355        intelObj->mt->first_level == level &&
 356        intelObj->mt->last_level == level &&
 357        intelObj->mt->target != GL_TEXTURE_CUBE_MAP_ARB &&
 358        !intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
 359
 360       DBG("release it\n");
 361       intel_miptree_release(intel, &intelObj->mt);
 362       assert(!intelObj->mt);
 363    }
 364
 365    if (!intelObj->mt) {
 366       guess_and_alloc_mipmap_tree(intel, intelObj, intelImage, pixels == NULL);
 367       if (!intelObj->mt) {
 368          DBG("guess_and_alloc_mipmap_tree: failed\n");
 369       }
 370    }
 371
 372    assert(!intelImage->mt);
 373
 374    if (intelObj->mt &&
 375        intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
 376
 377       intel_miptree_reference(&intelImage->mt, intelObj->mt);
 378       assert(intelImage->mt);
 379    } else if (intelImage->base.Border == 0) {
 380       int comp_byte = 0;
 381       GLuint texelBytes = _mesa_get_format_bytes(intelImage->base.TexFormat);
 382       GLenum baseFormat = _mesa_get_format_base_format(intelImage->base.TexFormat);
 383       if (_mesa_is_format_compressed(intelImage->base.TexFormat)) {
 384          comp_byte =
 385             intel_compressed_num_bytes(intelImage->base.TexFormat);
 386       }
 387
 388       /* Didn't fit in the object miptree, but it's suitable for inclusion in
 389        * a miptree, so create one just for our level and store it in the image.
 390        * It'll get moved into the object miptree at validate time.
 391        */
 392       intelImage->mt = intel_miptree_create(intel, target,
 393                                             baseFormat,
 394                                             internalFormat,
 395                                             level, level,
 396                                             width, height, depth,
 397                                             texelBytes,
 398                                             comp_byte, pixels == NULL);
 399
 400    }
 401
 402    /* PBO fastpaths:
 403     */
 404    if (dims <= 2 &&
 405        intelImage->mt &&
 406        _mesa_is_bufferobj(unpack->BufferObj) &&
 407        check_pbo_format(internalFormat, format,
 408                         type, intelImage->base.TexFormat)) {
 409
 410       DBG("trying pbo upload\n");
 411
 412       /* Attempt to texture directly from PBO data (zero copy upload).
 413        *
 414        * Currently disable as it can lead to worse as well as better
 415        * performance (in particular when intel_region_cow() is
 416        * required).
 417        */
 418       if (intelObj->mt == intelImage->mt &&
 419           intelObj->mt->first_level == level &&
 420           intelObj->mt->last_level == level) {
 421
 422          if (try_pbo_zcopy(intel, intelImage, unpack,
 423                            internalFormat,
 424                            width, height, format, type, pixels)) {
 425
 426             DBG("pbo zcopy upload succeeded\n");
 427             return;
 428          }
 429       }
 430
 431
 432       /* Otherwise, attempt to use the blitter for PBO image uploads.
 433        */
 434       if (try_pbo_upload(intel, intelImage, unpack,
 435                          internalFormat,
 436                          width, height, format, type, pixels)) {
 437          DBG("pbo upload succeeded\n");
 438          return;
 439       }
 440
 441       DBG("pbo upload failed\n");
 442    }
 443
 444    /* intelCopyTexImage calls this function with pixels == NULL, with
 445     * the expectation that the mipmap tree will be set up but nothing
 446     * more will be done.  This is where those calls return:
 447     */
 448    if (compressed) {
 449       pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
 450                                                       unpack,
 451                                                       "glCompressedTexImage");
 452    } else {
 453       pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
 454                                            format, type,
 455                                            pixels, unpack, "glTexImage");
 456    }
 457
 458    if (intelImage->mt) {
 459       if (pixels != NULL) {
 460          /* Flush any queued rendering with the texture before mapping. */
 461          if (drm_intel_bo_references(intel->batch->buf,
 462                                      intelImage->mt->region->buffer)) {
 463             intel_flush(ctx);
 464          }
 465          texImage->Data = intel_miptree_image_map(intel,
 466                                                   intelImage->mt,
 467                                                   intelImage->face,
 468                                                   intelImage->level,
 469                                                   &dstRowStride,
 470                                                   intelImage->base.ImageOffsets);
 471       }
 472
 473       texImage->RowStride = dstRowStride / intelImage->mt->cpp;
 474    }
 475    else {
 476       /* Allocate regular memory and store the image there temporarily.   */
 477       if (_mesa_is_format_compressed(texImage->TexFormat)) {
 478          sizeInBytes = _mesa_format_image_size(texImage->TexFormat,
 479                                                texImage->Width,
 480                                                texImage->Height,
 481                                                texImage->Depth);
 482          dstRowStride =
 483             _mesa_format_row_stride(texImage->TexFormat, width);
 484          assert(dims != 3);
 485       }
 486       else {
 487          dstRowStride = width * texelBytes;
 488          sizeInBytes = depth * dstRowStride * height;
 489       }
 490
 491       texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
 492    }
 493
 494    DBG("Upload image %dx%dx%d row_len %d "
 495        "pitch %d pixels %d compressed %d\n",
 496        width, height, depth, width * texelBytes, dstRowStride,
 497        pixels ? 1 : 0, compressed);
 498
 499    /* Copy data.  Would like to know when it's ok for us to eg. use
 500     * the blitter to copy.  Or, use the hardware to do the format
 501     * conversion and copy:
 502     */
 503    if (pixels) {
 504        if (compressed) {
 505            if (intelImage->mt) {
 506                struct intel_region *dst = intelImage->mt->region;
 507                _mesa_copy_rect(texImage->Data, dst->cpp, dst->pitch,
 508                                0, 0,
 509                                intelImage->mt->level[level].width,
 510                                (intelImage->mt->level[level].height+3)/4,
 511                                pixels,
 512                                srcRowStride,
 513                                0, 0);
 514            }
 515            else {
 516                memcpy(texImage->Data, pixels, imageSize);
 517            }
 518        }
 519        else if (!_mesa_texstore(ctx, dims,
 520                                 texImage->_BaseFormat,
 521                                 texImage->TexFormat,
 522                                 texImage->Data, 0, 0, 0, /* dstX/Y/Zoffset */
 523                                 dstRowStride,
 524                                 texImage->ImageOffsets,
 525                                 width, height, depth,
 526                                 format, type, pixels, unpack)) {
 527           _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
 528        }
 529    }
 530
 531    _mesa_unmap_teximage_pbo(ctx, unpack);
 532
 533    if (intelImage->mt) {
 534       if (pixels != NULL)
 535          intel_miptree_image_unmap(intel, intelImage->mt);
 536       texImage->Data = NULL;
 537    }
 538 }
 539
 540
 541 static void
 542 intelTexImage3D(struct gl_context * ctx,
 543                 GLenum target, GLint level,
 544                 GLint internalFormat,
 545                 GLint width, GLint height, GLint depth,
 546                 GLint border,
 547                 GLenum format, GLenum type, const void *pixels,
 548                 const struct gl_pixelstore_attrib *unpack,
 549                 struct gl_texture_object *texObj,
 550                 struct gl_texture_image *texImage)
 551 {
 552    intelTexImage(ctx, 3, target, level,
 553                  internalFormat, width, height, depth, border,
 554                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 555 }
 556
 557
 558 static void
 559 intelTexImage2D(struct gl_context * ctx,
 560                 GLenum target, GLint level,
 561                 GLint internalFormat,
 562                 GLint width, GLint height, 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, 2, target, level,
 569                  internalFormat, width, height, 1, border,
 570                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 571 }
 572
 573
 574 static void
 575 intelTexImage1D(struct gl_context * ctx,
 576                 GLenum target, GLint level,
 577                 GLint internalFormat,
 578                 GLint width, 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, 1, target, level,
 585                  internalFormat, width, 1, 1, border,
 586                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 587 }
 588
 589
 590 static void
 591 intelCompressedTexImage2D( struct gl_context *ctx, GLenum target, GLint level,
 592                            GLint internalFormat,
 593                            GLint width, GLint height, GLint border,
 594                            GLsizei imageSize, const GLvoid *data,
 595                            struct gl_texture_object *texObj,
 596                            struct gl_texture_image *texImage )
 597 {
 598    intelTexImage(ctx, 2, target, level,
 599                  internalFormat, width, height, 1, border,
 600                  0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
 601 }
 602
 603
 604 /**
 605  * Need to map texture image into memory before copying image data,
 606  * then unmap it.
 607  */
 608 static void
 609 intel_get_tex_image(struct gl_context * ctx, GLenum target, GLint level,
 610                     GLenum format, GLenum type, GLvoid * pixels,
 611                     struct gl_texture_object *texObj,
 612                     struct gl_texture_image *texImage, GLboolean compressed)
 613 {
 614    struct intel_context *intel = intel_context(ctx);
 615    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 616
 617    /* If we're reading from a texture that has been rendered to, need to
 618     * make sure rendering is complete.
 619     * We could probably predicate this on texObj->_RenderToTexture
 620     */
 621    intel_flush(ctx);
 622
 623    /* Map */
 624    if (intelImage->mt) {
 625       /* Image is stored in hardware format in a buffer managed by the
 626        * kernel.  Need to explicitly map and unmap it.
 627        */
 628       intelImage->base.Data =
 629          intel_miptree_image_map(intel,
 630                                  intelImage->mt,
 631                                  intelImage->face,
 632                                  intelImage->level,
 633                                  &intelImage->base.RowStride,
 634                                  intelImage->base.ImageOffsets);
 635       intelImage->base.RowStride /= intelImage->mt->cpp;
 636    }
 637    else {
 638       /* Otherwise, the image should actually be stored in
 639        * intelImage->base.Data.  This is pretty confusing for
 640        * everybody, I'd much prefer to separate the two functions of
 641        * texImage->Data - storage for texture images in main memory
 642        * and access (ie mappings) of images.  In other words, we'd
 643        * create a new texImage->Map field and leave Data simply for
 644        * storage.
 645        */
 646       assert(intelImage->base.Data);
 647    }
 648
 649
 650    if (compressed) {
 651       _mesa_get_compressed_teximage(ctx, target, level, pixels,
 652                                     texObj, texImage);
 653    }
 654    else {
 655       _mesa_get_teximage(ctx, target, level, format, type, pixels,
 656                          texObj, texImage);
 657    }
 658
 659
 660    /* Unmap */
 661    if (intelImage->mt) {
 662       intel_miptree_image_unmap(intel, intelImage->mt);
 663       intelImage->base.Data = NULL;
 664    }
 665 }
 666
 667
 668 static void
 669 intelGetTexImage(struct gl_context * ctx, GLenum target, GLint level,
 670                  GLenum format, GLenum type, GLvoid * pixels,
 671                  struct gl_texture_object *texObj,
 672                  struct gl_texture_image *texImage)
 673 {
 674    intel_get_tex_image(ctx, target, level, format, type, pixels,
 675                        texObj, texImage, GL_FALSE);
 676 }
 677
 678
 679 static void
 680 intelGetCompressedTexImage(struct gl_context *ctx, GLenum target, GLint level,
 681                            GLvoid *pixels,
 682                            struct gl_texture_object *texObj,
 683                            struct gl_texture_image *texImage)
 684 {
 685    intel_get_tex_image(ctx, target, level, 0, 0, pixels,
 686                        texObj, texImage, GL_TRUE);
 687 }
 688
 689 void
 690 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 691                    GLint texture_format,
 692                    __DRIdrawable *dPriv)
 693 {
 694    struct gl_framebuffer *fb = dPriv->driverPrivate;
 695    struct intel_context *intel = pDRICtx->driverPrivate;
 696    struct gl_context *ctx = &intel->ctx;
 697    struct intel_texture_object *intelObj;
 698    struct intel_texture_image *intelImage;
 699    struct intel_mipmap_tree *mt;
 700    struct intel_renderbuffer *rb;
 701    struct gl_texture_object *texObj;
 702    struct gl_texture_image *texImage;
 703    int level = 0, internalFormat;
 704
 705    texObj = _mesa_get_current_tex_object(ctx, target);
 706    intelObj = intel_texture_object(texObj);
 707
 708    if (!intelObj)
 709       return;
 710
 711    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 712        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 713       intel_update_renderbuffers(pDRICtx, dPriv);
 714
 715    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 716    /* If the region isn't set, then intel_update_renderbuffers was unable
 717     * to get the buffers for the drawable.
 718     */
 719    if (rb->region == NULL)
 720       return;
 721
 722    if (texture_format == __DRI_TEXTURE_FORMAT_RGB)
 723       internalFormat = GL_RGB;
 724    else
 725       internalFormat = GL_RGBA;
 726
 727    mt = intel_miptree_create_for_region(intel, target,
 728                                         internalFormat,
 729                                         0, 0, rb->region, 1, 0);
 730    if (mt == NULL)
 731        return;
 732
 733    _mesa_lock_texture(&intel->ctx, texObj);
 734
 735    texImage = _mesa_get_tex_image(&intel->ctx, texObj, target, level);
 736    intelImage = intel_texture_image(texImage);
 737
 738    if (intelImage->mt) {
 739       intel_miptree_release(intel, &intelImage->mt);
 740       assert(!texImage->Data);
 741    }
 742    if (intelObj->mt)
 743       intel_miptree_release(intel, &intelObj->mt);
 744
 745    intelObj->mt = mt;
 746    _mesa_init_teximage_fields(&intel->ctx, target, texImage,
 747                               rb->region->width, rb->region->height, 1,
 748                               0, internalFormat);
 749
 750    intelImage->face = target_to_face(target);
 751    intelImage->level = level;
 752    if (texture_format == __DRI_TEXTURE_FORMAT_RGB)
 753       texImage->TexFormat = MESA_FORMAT_XRGB8888;
 754    else
 755       texImage->TexFormat = MESA_FORMAT_ARGB8888;
 756    texImage->RowStride = rb->region->pitch;
 757    intel_miptree_reference(&intelImage->mt, intelObj->mt);
 758
 759    if (!intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
 760            fprintf(stderr, "miptree doesn't match image\n");
 761    }
 762
 763    _mesa_unlock_texture(&intel->ctx, texObj);
 764 }
 765
 766 void
 767 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 768 {
 769    /* The old interface didn't have the format argument, so copy our
 770     * implementation's behavior at the time.
 771     */
 772    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 773 }
 774
 775 #if FEATURE_OES_EGL_image
 776 static void
 777 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 778                               struct gl_texture_object *texObj,
 779                               struct gl_texture_image *texImage,
 780                               GLeglImageOES image_handle)
 781 {
 782    struct intel_context *intel = intel_context(ctx);
 783    struct intel_texture_object *intelObj = intel_texture_object(texObj);
 784    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 785    struct intel_mipmap_tree *mt;
 786    __DRIscreen *screen;
 787    __DRIimage *image;
 788
 789    screen = intel->intelScreen->driScrnPriv;
 790    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 791                                               screen->loaderPrivate);
 792    if (image == NULL)
 793       return;
 794
 795    mt = intel_miptree_create_for_region(intel, target,
 796                                         image->internal_format,
 797                                         0, 0, image->region, 1, 0);
 798    if (mt == NULL)
 799        return;
 800
 801    if (intelImage->mt) {
 802       intel_miptree_release(intel, &intelImage->mt);
 803       assert(!texImage->Data);
 804    }
 805    if (intelObj->mt)
 806       intel_miptree_release(intel, &intelObj->mt);
 807
 808    intelObj->mt = mt;
 809    _mesa_init_teximage_fields(&intel->ctx, target, texImage,
 810                               image->region->width, image->region->height, 1,
 811                               0, image->internal_format);
 812
 813    intelImage->face = target_to_face(target);
 814    intelImage->level = 0;
 815    texImage->TexFormat = image->format;
 816    texImage->RowStride = image->region->pitch;
 817    intel_miptree_reference(&intelImage->mt, intelObj->mt);
 818
 819    if (!intel_miptree_match_image(intelObj->mt, &intelImage->base))
 820       fprintf(stderr, "miptree doesn't match image\n");
 821 }
 822 #endif
 823
 824 void
 825 intelInitTextureImageFuncs(struct dd_function_table *functions)
 826 {
 827    functions->TexImage1D = intelTexImage1D;
 828    functions->TexImage2D = intelTexImage2D;
 829    functions->TexImage3D = intelTexImage3D;
 830    functions->GetTexImage = intelGetTexImage;
 831
 832    functions->CompressedTexImage2D = intelCompressedTexImage2D;
 833    functions->GetCompressedTexImage = intelGetCompressedTexImage;
 834
 835 #if FEATURE_OES_EGL_image
 836    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 837 #endif
 838 }