src/mesa/drivers/dri/i965/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/image.h"
  10 #include "main/pbo.h"
  11 #include "main/renderbuffer.h"
  12 #include "main/texcompress.h"
  13 #include "main/texgetimage.h"
  14 #include "main/texobj.h"
  15 #include "main/teximage.h"
  16 #include "main/texstore.h"
  17
  18 #include "drivers/common/meta.h"
  19
  20 #include "intel_mipmap_tree.h"
  21 #include "intel_buffer_objects.h"
  22 #include "intel_batchbuffer.h"
  23 #include "intel_tex.h"
  24 #include "intel_blit.h"
  25 #include "intel_fbo.h"
  26 #include "intel_image.h"
  27 #include "intel_tiled_memcpy.h"
  28 #include "brw_context.h"
  29
  30 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  31
  32 /* Work back from the specified level of the image to the baselevel and create a
  33  * miptree of that size.
  34  */
  35 struct intel_mipmap_tree *
  36 intel_miptree_create_for_teximage(struct brw_context *brw,
  37                                   struct intel_texture_object *intelObj,
  38                                   struct intel_texture_image *intelImage,
  39                                   uint32_t layout_flags)
  40 {
  41    GLuint lastLevel;
  42    int width, height, depth;
  43    GLuint i;
  44
  45    intel_miptree_get_dimensions_for_image(&intelImage->base.Base,
  46                                           &width, &height, &depth);
  47
  48    DBG("%s\n", __func__);
  49
  50    /* Figure out image dimensions at start level. */
  51    for (i = intelImage->base.Base.Level; i > 0; i--) {
  52       width <<= 1;
  53       if (height != 1)
  54          height <<= 1;
  55       if (depth != 1)
  56          depth <<= 1;
  57    }
  58
  59    /* Guess a reasonable value for lastLevel.  This is probably going
  60     * to be wrong fairly often and might mean that we have to look at
  61     * resizable buffers, or require that buffers implement lazy
  62     * pagetable arrangements.
  63     */
  64    if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
  65         intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
  66        intelImage->base.Base.Level == 0 &&
  67        !intelObj->base.GenerateMipmap) {
  68       lastLevel = 0;
  69    } else {
  70       lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
  71                                                width, height, depth) - 1;
  72    }
  73
  74    return intel_miptree_create(brw,
  75                                intelObj->base.Target,
  76                                intelImage->base.Base.TexFormat,
  77                                0,
  78                                lastLevel,
  79                                width,
  80                                height,
  81                                depth,
  82                                intelImage->base.Base.NumSamples,
  83                                INTEL_MIPTREE_TILING_ANY,
  84                                layout_flags);
  85 }
  86
  87 static void
  88 intelTexImage(struct gl_context * ctx,
  89               GLuint dims,
  90               struct gl_texture_image *texImage,
  91               GLenum format, GLenum type, const void *pixels,
  92               const struct gl_pixelstore_attrib *unpack)
  93 {
  94    struct intel_texture_image *intelImage = intel_texture_image(texImage);
  95    bool ok;
  96
  97    bool tex_busy = intelImage->mt && drm_intel_bo_busy(intelImage->mt->bo);
  98
  99    DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
 100        __func__, _mesa_get_format_name(texImage->TexFormat),
 101        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 102        _mesa_lookup_enum_by_nr(format), _mesa_lookup_enum_by_nr(type),
 103        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 104
 105    /* Allocate storage for texture data. */
 106    if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
 107       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
 108       return;
 109    }
 110
 111    assert(intelImage->mt);
 112
 113    ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
 114                                    texImage->Width, texImage->Height,
 115                                    texImage->Depth,
 116                                    format, type, pixels,
 117                                    false /*allocate_storage*/,
 118                                    tex_busy, unpack);
 119    if (ok)
 120       return;
 121
 122    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 123                                        0, 0, 0, /*x,y,z offsets*/
 124                                        texImage->Width,
 125                                        texImage->Height,
 126                                        texImage->Depth,
 127                                        format, type, pixels, unpack,
 128                                        false /*allocate_storage*/);
 129    if (ok)
 130       return;
 131
 132    DBG("%s: upload image %dx%dx%d pixels %p\n",
 133        __func__, texImage->Width, texImage->Height, texImage->Depth,
 134        pixels);
 135
 136    _mesa_store_teximage(ctx, dims, texImage,
 137                         format, type, pixels, unpack);
 138 }
 139
 140
 141 /**
 142  * Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
 143  *
 144  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 145  */
 146 static void
 147 intel_set_texture_image_bo(struct gl_context *ctx,
 148                            struct gl_texture_image *image,
 149                            drm_intel_bo *bo,
 150                            GLenum target,
 151                            GLenum internalFormat,
 152                            mesa_format format,
 153                            uint32_t offset,
 154                            GLuint width, GLuint height,
 155                            GLuint pitch,
 156                            GLuint tile_x, GLuint tile_y,
 157                            uint32_t layout_flags)
 158 {
 159    struct brw_context *brw = brw_context(ctx);
 160    struct intel_texture_image *intel_image = intel_texture_image(image);
 161    struct gl_texture_object *texobj = image->TexObject;
 162    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 163    uint32_t draw_x, draw_y;
 164
 165    _mesa_init_teximage_fields(&brw->ctx, image,
 166                               width, height, 1,
 167                               0, internalFormat, format);
 168
 169    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 170
 171    intel_image->mt = intel_miptree_create_for_bo(brw, bo, image->TexFormat,
 172                                                  0, width, height, 1, pitch,
 173                                                  layout_flags);
 174    if (intel_image->mt == NULL)
 175        return;
 176    intel_image->mt->target = target;
 177    intel_image->mt->total_width = width;
 178    intel_image->mt->total_height = height;
 179    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 180    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 181
 182    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 183
 184    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 185     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 186     * trouble resolving back to destination image due to alignment issues.
 187     */
 188    if (!brw->has_surface_tile_offset &&
 189        (draw_x != 0 || draw_y != 0)) {
 190       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 191       intel_miptree_release(&intel_image->mt);
 192       return;
 193    }
 194
 195    intel_texobj->needs_validate = true;
 196
 197    intel_image->mt->offset = offset;
 198    assert(pitch % intel_image->mt->cpp == 0);
 199    intel_image->base.RowStride = pitch / intel_image->mt->cpp;
 200
 201    /* Immediately validate the image to the object. */
 202    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 203 }
 204
 205 void
 206 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 207                    GLint texture_format,
 208                    __DRIdrawable *dPriv)
 209 {
 210    struct gl_framebuffer *fb = dPriv->driverPrivate;
 211    struct brw_context *brw = pDRICtx->driverPrivate;
 212    struct gl_context *ctx = &brw->ctx;
 213    struct intel_renderbuffer *rb;
 214    struct gl_texture_object *texObj;
 215    struct gl_texture_image *texImage;
 216    int level = 0, internalFormat = 0;
 217    mesa_format texFormat = MESA_FORMAT_NONE;
 218
 219    texObj = _mesa_get_current_tex_object(ctx, target);
 220
 221    if (!texObj)
 222       return;
 223
 224    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 225        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 226       intel_update_renderbuffers(pDRICtx, dPriv);
 227
 228    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 229    /* If the miptree isn't set, then intel_update_renderbuffers was unable
 230     * to get the BO for the drawable from the window system.
 231     */
 232    if (!rb || !rb->mt)
 233       return;
 234
 235    if (rb->mt->cpp == 4) {
 236       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 237          internalFormat = GL_RGB;
 238          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
 239       }
 240       else {
 241          internalFormat = GL_RGBA;
 242          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 243       }
 244    } else if (rb->mt->cpp == 2) {
 245       internalFormat = GL_RGB;
 246       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 247    }
 248
 249    _mesa_lock_texture(&brw->ctx, texObj);
 250    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 251    intel_miptree_make_shareable(brw, rb->mt);
 252    intel_set_texture_image_bo(ctx, texImage, rb->mt->bo, target,
 253                               internalFormat, texFormat, 0,
 254                               rb->Base.Base.Width,
 255                               rb->Base.Base.Height,
 256                               rb->mt->pitch,
 257                               0, 0, 0);
 258    _mesa_unlock_texture(&brw->ctx, texObj);
 259 }
 260
 261 static GLboolean
 262 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
 263                                   struct gl_renderbuffer *rb,
 264                                   struct gl_texture_image *image)
 265 {
 266    struct intel_renderbuffer *irb = intel_renderbuffer(rb);
 267    struct intel_texture_image *intel_image = intel_texture_image(image);
 268    struct gl_texture_object *texobj = image->TexObject;
 269    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 270
 271    /* We can only handle RB allocated with AllocRenderbufferStorage, or
 272     * window-system renderbuffers.
 273     */
 274    assert(!rb->TexImage);
 275
 276    if (!irb->mt)
 277       return false;
 278
 279    _mesa_lock_texture(ctx, texobj);
 280    _mesa_init_teximage_fields(ctx, image,
 281                               rb->Width, rb->Height, 1,
 282                               0, rb->InternalFormat, rb->Format);
 283    image->NumSamples = rb->NumSamples;
 284
 285    intel_miptree_reference(&intel_image->mt, irb->mt);
 286
 287    /* Immediately validate the image to the object. */
 288    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 289
 290    intel_texobj->needs_validate = true;
 291    _mesa_unlock_texture(ctx, texobj);
 292
 293    return true;
 294 }
 295
 296 void
 297 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 298 {
 299    /* The old interface didn't have the format argument, so copy our
 300     * implementation's behavior at the time.
 301     */
 302    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 303 }
 304
 305 static void
 306 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 307                               struct gl_texture_object *texObj,
 308                               struct gl_texture_image *texImage,
 309                               GLeglImageOES image_handle)
 310 {
 311    struct brw_context *brw = brw_context(ctx);
 312    __DRIscreen *screen;
 313    __DRIimage *image;
 314
 315    screen = brw->intelScreen->driScrnPriv;
 316    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 317                                               screen->loaderPrivate);
 318    if (image == NULL)
 319       return;
 320
 321    /* We support external textures only for EGLImages created with
 322     * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
 323     */
 324    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 325       _mesa_error(ctx, GL_INVALID_OPERATION,
 326             "glEGLImageTargetTexture2DOES(external target is enabled only "
 327                "for images created with EGL_EXT_image_dma_buf_import");
 328       return;
 329    }
 330
 331    /* Disallow depth/stencil textures: we don't have a way to pass the
 332     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 333     */
 334    if (image->has_depthstencil) {
 335       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 336       return;
 337    }
 338
 339    /* Disable creation of the texture's aux buffers because the driver exposes
 340     * no EGL API to manage them. That is, there is no API for resolving the aux
 341     * buffer's content to the main buffer nor for invalidating the aux buffer's
 342     * content.
 343     */
 344    intel_set_texture_image_bo(ctx, texImage, image->bo,
 345                               target, image->internal_format,
 346                               image->format, image->offset,
 347                               image->width,  image->height,
 348                               image->pitch,
 349                               image->tile_x, image->tile_y,
 350                               MIPTREE_LAYOUT_DISABLE_AUX);
 351 }
 352
 353 /**
 354  * \brief A fast path for glGetTexImage.
 355  *
 356  * \see intel_readpixels_tiled_memcpy()
 357  */
 358 bool
 359 intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
 360                                   struct gl_texture_image *texImage,
 361                                   GLint xoffset, GLint yoffset,
 362                                   GLsizei width, GLsizei height,
 363                                   GLenum format, GLenum type,
 364                                   GLvoid *pixels,
 365                                   const struct gl_pixelstore_attrib *packing)
 366 {
 367    struct brw_context *brw = brw_context(ctx);
 368    struct intel_texture_image *image = intel_texture_image(texImage);
 369    int dst_pitch;
 370
 371    /* The miptree's buffer. */
 372    drm_intel_bo *bo;
 373
 374    int error = 0;
 375
 376    uint32_t cpp;
 377    mem_copy_fn mem_copy = NULL;
 378
 379    /* This fastpath is restricted to specific texture types:
 380     * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
 381     * more types.
 382     *
 383     * FINISHME: The restrictions below on packing alignment and packing row
 384     * length are likely unneeded now because we calculate the destination stride
 385     * with _mesa_image_row_stride. However, before removing the restrictions
 386     * we need tests.
 387     */
 388    if (!brw->has_llc ||
 389        !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
 390        !(texImage->TexObject->Target == GL_TEXTURE_2D ||
 391          texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
 392        pixels == NULL ||
 393        _mesa_is_bufferobj(packing->BufferObj) ||
 394        packing->Alignment > 4 ||
 395        packing->SkipPixels > 0 ||
 396        packing->SkipRows > 0 ||
 397        (packing->RowLength != 0 && packing->RowLength != width) ||
 398        packing->SwapBytes ||
 399        packing->LsbFirst ||
 400        packing->Invert)
 401       return false;
 402
 403    /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
 404     * function doesn't set the last channel to 1.
 405     */
 406    if (texImage->TexFormat == MESA_FORMAT_B8G8R8X8_UNORM ||
 407        texImage->TexFormat == MESA_FORMAT_R8G8B8X8_UNORM)
 408       return false;
 409
 410    if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp,
 411                          INTEL_DOWNLOAD))
 412       return false;
 413
 414    /* If this is a nontrivial texture view, let another path handle it instead. */
 415    if (texImage->TexObject->MinLayer)
 416       return false;
 417
 418    if (!image->mt ||
 419        (image->mt->tiling != I915_TILING_X &&
 420        image->mt->tiling != I915_TILING_Y)) {
 421       /* The algorithm is written only for X- or Y-tiled memory. */
 422       return false;
 423    }
 424
 425    /* Since we are going to write raw data to the miptree, we need to resolve
 426     * any pending fast color clears before we start.
 427     */
 428    intel_miptree_resolve_color(brw, image->mt);
 429
 430    bo = image->mt->bo;
 431
 432    if (drm_intel_bo_references(brw->batch.bo, bo)) {
 433       perf_debug("Flushing before mapping a referenced bo.\n");
 434       intel_batchbuffer_flush(brw);
 435    }
 436
 437    error = brw_bo_map(brw, bo, false /* write enable */, "miptree");
 438    if (error) {
 439       DBG("%s: failed to map bo\n", __func__);
 440       return false;
 441    }
 442
 443    dst_pitch = _mesa_image_row_stride(packing, width, format, type);
 444
 445    DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
 446        "mesa_format=0x%x tiling=%d "
 447        "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
 448        __func__, texImage->Level, xoffset, yoffset, width, height,
 449        format, type, texImage->TexFormat, image->mt->tiling,
 450        packing->Alignment, packing->RowLength, packing->SkipPixels,
 451        packing->SkipRows);
 452
 453    int level = texImage->Level + texImage->TexObject->MinLevel;
 454
 455    /* Adjust x and y offset based on miplevel */
 456    xoffset += image->mt->level[level].level_x;
 457    yoffset += image->mt->level[level].level_y;
 458
 459    tiled_to_linear(
 460       xoffset * cpp, (xoffset + width) * cpp,
 461       yoffset, yoffset + height,
 462       pixels - (ptrdiff_t) yoffset * dst_pitch - (ptrdiff_t) xoffset * cpp,
 463       bo->virtual,
 464       dst_pitch, image->mt->pitch,
 465       brw->has_swizzling,
 466       image->mt->tiling,
 467       mem_copy
 468    );
 469
 470    drm_intel_bo_unmap(bo);
 471    return true;
 472 }
 473
 474 static void
 475 intel_get_tex_image(struct gl_context *ctx,
 476                     GLenum format, GLenum type, GLvoid *pixels,
 477                     struct gl_texture_image *texImage) {
 478    struct brw_context *brw = brw_context(ctx);
 479    bool ok;
 480
 481    DBG("%s\n", __func__);
 482
 483    if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
 484       if (_mesa_meta_pbo_GetTexSubImage(ctx, 3, texImage, 0, 0, 0,
 485                                         texImage->Width, texImage->Height,
 486                                         texImage->Depth, format, type,
 487                                         pixels, &ctx->Pack)) {
 488          /* Flush to guarantee coherency between the render cache and other
 489           * caches the PBO could potentially be bound to after this point.
 490           * See the related comment in intelReadPixels() for a more detailed
 491           * explanation.
 492           */
 493          brw_emit_mi_flush(brw);
 494          return;
 495       }
 496
 497       perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__);
 498    }
 499
 500    ok = intel_gettexsubimage_tiled_memcpy(ctx, texImage, 0, 0,
 501                                           texImage->Width, texImage->Height,
 502                                           format, type, pixels, &ctx->Pack);
 503
 504    if(ok)
 505       return;
 506
 507    _mesa_meta_GetTexImage(ctx, format, type, pixels, texImage);
 508
 509    DBG("%s - DONE\n", __func__);
 510 }
 511
 512 void
 513 intelInitTextureImageFuncs(struct dd_function_table *functions)
 514 {
 515    functions->TexImage = intelTexImage;
 516    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 517    functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
 518    functions->GetTexImage = intel_get_tex_image;
 519 }