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.bo, dst_buffer))
 235       intel_flush(&intel->ctx);
 236
 237    {
 238       GLuint offset;
 239       drm_intel_bo *src_buffer = intel_bufferobj_source(intel, pbo, &offset);
 240
 241       if (!intelEmitCopyBlit(intel,
 242                              intelImage->mt->cpp,
 243                              src_stride, src_buffer,
 244                              src_offset + 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    assert(!intelImage->mt);
 351
 352    if (intelObj->mt &&
 353        intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
 354       /* Use an existing miptree when possible */
 355       intel_miptree_reference(&intelImage->mt, intelObj->mt);
 356       assert(intelImage->mt);
 357    } else if (intelImage->base.Border == 0) {
 358       /* Didn't fit in the object miptree, but it's suitable for inclusion in
 359        * a miptree, so create one just for our level and store it in the image.
 360        * It'll get moved into the object miptree at validate time.
 361        */
 362       intelImage->mt = intel_miptree_create_for_teximage(intel, intelObj,
 363                                                          intelImage,
 364                                                          pixels == NULL);
 365
 366       /* Even if the object currently has a mipmap tree associated
 367        * with it, this one is a more likely candidate to represent the
 368        * whole object since our level didn't fit what was there
 369        * before, and any lower levels would fit into our miptree.
 370        */
 371       if (intelImage->mt)
 372          intel_miptree_reference(&intelObj->mt, intelImage->mt);
 373    }
 374
 375    /* PBO fastpaths:
 376     */
 377    if (dims <= 2 &&
 378        intelImage->mt &&
 379        _mesa_is_bufferobj(unpack->BufferObj) &&
 380        check_pbo_format(internalFormat, format,
 381                         type, intelImage->base.TexFormat)) {
 382
 383       DBG("trying pbo upload\n");
 384
 385       /* Attempt to texture directly from PBO data (zero copy upload).
 386        *
 387        * Currently disable as it can lead to worse as well as better
 388        * performance (in particular when intel_region_cow() is
 389        * required).
 390        */
 391       if (intelObj->mt == intelImage->mt &&
 392           intelObj->mt->first_level == level &&
 393           intelObj->mt->last_level == level) {
 394
 395          if (try_pbo_zcopy(intel, intelImage, unpack,
 396                            internalFormat,
 397                            width, height, format, type, pixels)) {
 398
 399             DBG("pbo zcopy upload succeeded\n");
 400             return;
 401          }
 402       }
 403
 404
 405       /* Otherwise, attempt to use the blitter for PBO image uploads.
 406        */
 407       if (try_pbo_upload(intel, intelImage, unpack,
 408                          internalFormat,
 409                          width, height, format, type, pixels)) {
 410          DBG("pbo upload succeeded\n");
 411          return;
 412       }
 413
 414       DBG("pbo upload failed\n");
 415    }
 416
 417    /* intelCopyTexImage calls this function with pixels == NULL, with
 418     * the expectation that the mipmap tree will be set up but nothing
 419     * more will be done.  This is where those calls return:
 420     */
 421    if (compressed) {
 422       pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
 423                                                       unpack,
 424                                                       "glCompressedTexImage");
 425    } else {
 426       pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
 427                                            format, type,
 428                                            pixels, unpack, "glTexImage");
 429    }
 430
 431    if (intelImage->mt) {
 432       if (pixels != NULL) {
 433          /* Flush any queued rendering with the texture before mapping. */
 434          if (drm_intel_bo_references(intel->batch.bo,
 435                                      intelImage->mt->region->buffer)) {
 436             intel_flush(ctx);
 437          }
 438          texImage->Data = intel_miptree_image_map(intel,
 439                                                   intelImage->mt,
 440                                                   intelImage->face,
 441                                                   intelImage->level,
 442                                                   &dstRowStride,
 443                                                   intelImage->base.ImageOffsets);
 444       }
 445
 446       texImage->RowStride = dstRowStride / intelImage->mt->cpp;
 447    }
 448    else {
 449       /* Allocate regular memory and store the image there temporarily.   */
 450       if (_mesa_is_format_compressed(texImage->TexFormat)) {
 451          sizeInBytes = _mesa_format_image_size(texImage->TexFormat,
 452                                                texImage->Width,
 453                                                texImage->Height,
 454                                                texImage->Depth);
 455          dstRowStride =
 456             _mesa_format_row_stride(texImage->TexFormat, width);
 457          assert(dims != 3);
 458       }
 459       else {
 460          dstRowStride = width * texelBytes;
 461          sizeInBytes = depth * dstRowStride * height;
 462       }
 463
 464       texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
 465    }
 466
 467    DBG("Upload image %dx%dx%d row_len %d "
 468        "pitch %d pixels %d compressed %d\n",
 469        width, height, depth, width * texelBytes, dstRowStride,
 470        pixels ? 1 : 0, compressed);
 471
 472    /* Copy data.  Would like to know when it's ok for us to eg. use
 473     * the blitter to copy.  Or, use the hardware to do the format
 474     * conversion and copy:
 475     */
 476    if (pixels) {
 477        if (compressed) {
 478            if (intelImage->mt) {
 479                struct intel_region *dst = intelImage->mt->region;
 480                _mesa_copy_rect(texImage->Data, dst->cpp, dst->pitch,
 481                                0, 0,
 482                                intelImage->mt->level[level].width,
 483                                (intelImage->mt->level[level].height+3)/4,
 484                                pixels,
 485                                srcRowStride,
 486                                0, 0);
 487            }
 488            else {
 489                memcpy(texImage->Data, pixels, imageSize);
 490            }
 491        }
 492        else if (!_mesa_texstore(ctx, dims,
 493                                 texImage->_BaseFormat,
 494                                 texImage->TexFormat,
 495                                 texImage->Data, 0, 0, 0, /* dstX/Y/Zoffset */
 496                                 dstRowStride,
 497                                 texImage->ImageOffsets,
 498                                 width, height, depth,
 499                                 format, type, pixels, unpack)) {
 500           _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
 501        }
 502    }
 503
 504    _mesa_unmap_teximage_pbo(ctx, unpack);
 505
 506    if (intelImage->mt) {
 507       if (pixels != NULL)
 508          intel_miptree_image_unmap(intel, intelImage->mt);
 509       texImage->Data = NULL;
 510    }
 511 }
 512
 513
 514 static void
 515 intelTexImage3D(struct gl_context * ctx,
 516                 GLenum target, GLint level,
 517                 GLint internalFormat,
 518                 GLint width, GLint height, GLint depth,
 519                 GLint border,
 520                 GLenum format, GLenum type, const void *pixels,
 521                 const struct gl_pixelstore_attrib *unpack,
 522                 struct gl_texture_object *texObj,
 523                 struct gl_texture_image *texImage)
 524 {
 525    intelTexImage(ctx, 3, target, level,
 526                  internalFormat, width, height, depth, border,
 527                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 528 }
 529
 530
 531 static void
 532 intelTexImage2D(struct gl_context * ctx,
 533                 GLenum target, GLint level,
 534                 GLint internalFormat,
 535                 GLint width, GLint height, GLint border,
 536                 GLenum format, GLenum type, const void *pixels,
 537                 const struct gl_pixelstore_attrib *unpack,
 538                 struct gl_texture_object *texObj,
 539                 struct gl_texture_image *texImage)
 540 {
 541    intelTexImage(ctx, 2, target, level,
 542                  internalFormat, width, height, 1, border,
 543                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 544 }
 545
 546
 547 static void
 548 intelTexImage1D(struct gl_context * ctx,
 549                 GLenum target, GLint level,
 550                 GLint internalFormat,
 551                 GLint width, GLint border,
 552                 GLenum format, GLenum type, const void *pixels,
 553                 const struct gl_pixelstore_attrib *unpack,
 554                 struct gl_texture_object *texObj,
 555                 struct gl_texture_image *texImage)
 556 {
 557    intelTexImage(ctx, 1, target, level,
 558                  internalFormat, width, 1, 1, border,
 559                  format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
 560 }
 561
 562
 563 static void
 564 intelCompressedTexImage2D( struct gl_context *ctx, GLenum target, GLint level,
 565                            GLint internalFormat,
 566                            GLint width, GLint height, GLint border,
 567                            GLsizei imageSize, const GLvoid *data,
 568                            struct gl_texture_object *texObj,
 569                            struct gl_texture_image *texImage )
 570 {
 571    intelTexImage(ctx, 2, target, level,
 572                  internalFormat, width, height, 1, border,
 573                  0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
 574 }
 575
 576
 577 /**
 578  * Need to map texture image into memory before copying image data,
 579  * then unmap it.
 580  */
 581 static void
 582 intel_get_tex_image(struct gl_context * ctx, GLenum target, GLint level,
 583                     GLenum format, GLenum type, GLvoid * pixels,
 584                     struct gl_texture_object *texObj,
 585                     struct gl_texture_image *texImage, GLboolean compressed)
 586 {
 587    struct intel_context *intel = intel_context(ctx);
 588    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 589
 590    /* If we're reading from a texture that has been rendered to, need to
 591     * make sure rendering is complete.
 592     * We could probably predicate this on texObj->_RenderToTexture
 593     */
 594    intel_flush(ctx);
 595
 596    /* Map */
 597    if (intelImage->mt) {
 598       /* Image is stored in hardware format in a buffer managed by the
 599        * kernel.  Need to explicitly map and unmap it.
 600        */
 601       intelImage->base.Data =
 602          intel_miptree_image_map(intel,
 603                                  intelImage->mt,
 604                                  intelImage->face,
 605                                  intelImage->level,
 606                                  &intelImage->base.RowStride,
 607                                  intelImage->base.ImageOffsets);
 608       intelImage->base.RowStride /= intelImage->mt->cpp;
 609    }
 610    else {
 611       /* Otherwise, the image should actually be stored in
 612        * intelImage->base.Data.  This is pretty confusing for
 613        * everybody, I'd much prefer to separate the two functions of
 614        * texImage->Data - storage for texture images in main memory
 615        * and access (ie mappings) of images.  In other words, we'd
 616        * create a new texImage->Map field and leave Data simply for
 617        * storage.
 618        */
 619       assert(intelImage->base.Data);
 620    }
 621
 622
 623    if (compressed) {
 624       _mesa_get_compressed_teximage(ctx, target, level, pixels,
 625                                     texObj, texImage);
 626    }
 627    else {
 628       _mesa_get_teximage(ctx, target, level, format, type, pixels,
 629                          texObj, texImage);
 630    }
 631
 632
 633    /* Unmap */
 634    if (intelImage->mt) {
 635       intel_miptree_image_unmap(intel, intelImage->mt);
 636       intelImage->base.Data = NULL;
 637    }
 638 }
 639
 640
 641 static void
 642 intelGetTexImage(struct gl_context * ctx, GLenum target, GLint level,
 643                  GLenum format, GLenum type, GLvoid * pixels,
 644                  struct gl_texture_object *texObj,
 645                  struct gl_texture_image *texImage)
 646 {
 647    intel_get_tex_image(ctx, target, level, format, type, pixels,
 648                        texObj, texImage, GL_FALSE);
 649 }
 650
 651
 652 static void
 653 intelGetCompressedTexImage(struct gl_context *ctx, GLenum target, GLint level,
 654                            GLvoid *pixels,
 655                            struct gl_texture_object *texObj,
 656                            struct gl_texture_image *texImage)
 657 {
 658    intel_get_tex_image(ctx, target, level, 0, 0, pixels,
 659                        texObj, texImage, GL_TRUE);
 660 }
 661
 662 void
 663 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 664                    GLint texture_format,
 665                    __DRIdrawable *dPriv)
 666 {
 667    struct gl_framebuffer *fb = dPriv->driverPrivate;
 668    struct intel_context *intel = pDRICtx->driverPrivate;
 669    struct gl_context *ctx = &intel->ctx;
 670    struct intel_texture_object *intelObj;
 671    struct intel_texture_image *intelImage;
 672    struct intel_mipmap_tree *mt;
 673    struct intel_renderbuffer *rb;
 674    struct gl_texture_object *texObj;
 675    struct gl_texture_image *texImage;
 676    int level = 0, internalFormat;
 677    gl_format texFormat;
 678
 679    texObj = _mesa_get_current_tex_object(ctx, target);
 680    intelObj = intel_texture_object(texObj);
 681
 682    if (!intelObj)
 683       return;
 684
 685    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 686        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 687       intel_update_renderbuffers(pDRICtx, dPriv);
 688
 689    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 690    /* If the region isn't set, then intel_update_renderbuffers was unable
 691     * to get the buffers for the drawable.
 692     */
 693    if (rb->region == NULL)
 694       return;
 695
 696    if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 697       internalFormat = GL_RGB;
 698       texFormat = MESA_FORMAT_XRGB8888;
 699    }
 700    else {
 701       internalFormat = GL_RGBA;
 702       texFormat = MESA_FORMAT_ARGB8888;
 703    }
 704
 705    mt = intel_miptree_create_for_region(intel, target,
 706                                         internalFormat, rb->region, 1, 0);
 707    if (mt == NULL)
 708        return;
 709
 710    _mesa_lock_texture(&intel->ctx, texObj);
 711
 712    texImage = _mesa_get_tex_image(&intel->ctx, texObj, target, level);
 713    intelImage = intel_texture_image(texImage);
 714
 715    if (intelImage->mt) {
 716       intel_miptree_release(intel, &intelImage->mt);
 717       assert(!texImage->Data);
 718    }
 719    if (intelObj->mt)
 720       intel_miptree_release(intel, &intelObj->mt);
 721
 722    intelObj->mt = mt;
 723
 724    _mesa_init_teximage_fields(&intel->ctx, target, texImage,
 725                               rb->region->width, rb->region->height, 1,
 726                               0, internalFormat, texFormat);
 727
 728    intelImage->face = target_to_face(target);
 729    intelImage->level = level;
 730    texImage->RowStride = rb->region->pitch;
 731    intel_miptree_reference(&intelImage->mt, intelObj->mt);
 732
 733    if (!intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
 734            fprintf(stderr, "miptree doesn't match image\n");
 735    }
 736
 737    _mesa_unlock_texture(&intel->ctx, texObj);
 738 }
 739
 740 void
 741 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 742 {
 743    /* The old interface didn't have the format argument, so copy our
 744     * implementation's behavior at the time.
 745     */
 746    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 747 }
 748
 749 #if FEATURE_OES_EGL_image
 750 static void
 751 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 752                               struct gl_texture_object *texObj,
 753                               struct gl_texture_image *texImage,
 754                               GLeglImageOES image_handle)
 755 {
 756    struct intel_context *intel = intel_context(ctx);
 757    struct intel_texture_object *intelObj = intel_texture_object(texObj);
 758    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 759    struct intel_mipmap_tree *mt;
 760    __DRIscreen *screen;
 761    __DRIimage *image;
 762
 763    screen = intel->intelScreen->driScrnPriv;
 764    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 765                                               screen->loaderPrivate);
 766    if (image == NULL)
 767       return;
 768
 769    mt = intel_miptree_create_for_region(intel, target,
 770                                         image->internal_format,
 771                                         image->region, 1, 0);
 772    if (mt == NULL)
 773        return;
 774
 775    if (intelImage->mt) {
 776       intel_miptree_release(intel, &intelImage->mt);
 777       assert(!texImage->Data);
 778    }
 779    if (intelObj->mt)
 780       intel_miptree_release(intel, &intelObj->mt);
 781
 782    intelObj->mt = mt;
 783    _mesa_init_teximage_fields(&intel->ctx, target, texImage,
 784                               image->region->width, image->region->height, 1,
 785                               0, image->internal_format, image->format);
 786
 787    intelImage->face = target_to_face(target);
 788    intelImage->level = 0;
 789    texImage->RowStride = image->region->pitch;
 790    intel_miptree_reference(&intelImage->mt, intelObj->mt);
 791
 792    if (!intel_miptree_match_image(intelObj->mt, &intelImage->base))
 793       fprintf(stderr, "miptree doesn't match image\n");
 794 }
 795 #endif
 796
 797 void
 798 intelInitTextureImageFuncs(struct dd_function_table *functions)
 799 {
 800    functions->TexImage1D = intelTexImage1D;
 801    functions->TexImage2D = intelTexImage2D;
 802    functions->TexImage3D = intelTexImage3D;
 803    functions->GetTexImage = intelGetTexImage;
 804
 805    functions->CompressedTexImage2D = intelCompressedTexImage2D;
 806    functions->GetCompressedTexImage = intelGetCompressedTexImage;
 807
 808 #if FEATURE_OES_EGL_image
 809    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 810 #endif
 811 }