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                                   bool expect_accelerated_upload)
  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                                expect_accelerated_upload,
  83                                intelImage->base.Base.NumSamples,
  84                                INTEL_MIPTREE_TILING_ANY,
  85                                false);
  86 }
  87
  88 static void
  89 intelTexImage(struct gl_context * ctx,
  90               GLuint dims,
  91               struct gl_texture_image *texImage,
  92               GLenum format, GLenum type, const void *pixels,
  93               const struct gl_pixelstore_attrib *unpack)
  94 {
  95    struct intel_texture_image *intelImage = intel_texture_image(texImage);
  96    bool ok;
  97
  98    bool tex_busy = intelImage->mt && drm_intel_bo_busy(intelImage->mt->bo);
  99
 100    DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
 101        __func__, _mesa_get_format_name(texImage->TexFormat),
 102        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 103        _mesa_lookup_enum_by_nr(format), _mesa_lookup_enum_by_nr(type),
 104        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 105
 106    /* Allocate storage for texture data. */
 107    if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
 108       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
 109       return;
 110    }
 111
 112    assert(intelImage->mt);
 113
 114    ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
 115                                    texImage->Width, texImage->Height,
 116                                    texImage->Depth,
 117                                    format, type, pixels,
 118                                    false /*allocate_storage*/,
 119                                    tex_busy, unpack);
 120    if (ok)
 121       return;
 122
 123    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 124                                        0, 0, 0, /*x,y,z offsets*/
 125                                        texImage->Width,
 126                                        texImage->Height,
 127                                        texImage->Depth,
 128                                        format, type, pixels, unpack,
 129                                        false /*allocate_storage*/);
 130    if (ok)
 131       return;
 132
 133    DBG("%s: upload image %dx%dx%d pixels %p\n",
 134        __func__, texImage->Width, texImage->Height, texImage->Depth,
 135        pixels);
 136
 137    _mesa_store_teximage(ctx, dims, texImage,
 138                         format, type, pixels, unpack);
 139 }
 140
 141
 142 /**
 143  * Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
 144  *
 145  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 146  */
 147 static void
 148 intel_set_texture_image_bo(struct gl_context *ctx,
 149                            struct gl_texture_image *image,
 150                            drm_intel_bo *bo,
 151                            GLenum target,
 152                            GLenum internalFormat,
 153                            mesa_format format,
 154                            uint32_t offset,
 155                            GLuint width, GLuint height,
 156                            GLuint pitch,
 157                            GLuint tile_x, GLuint tile_y,
 158                            bool disable_aux_buffers)
 159 {
 160    struct brw_context *brw = brw_context(ctx);
 161    struct intel_texture_image *intel_image = intel_texture_image(image);
 162    struct gl_texture_object *texobj = image->TexObject;
 163    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 164    uint32_t draw_x, draw_y;
 165
 166    _mesa_init_teximage_fields(&brw->ctx, image,
 167                               width, height, 1,
 168                               0, internalFormat, format);
 169
 170    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 171
 172    intel_image->mt = intel_miptree_create_for_bo(brw, bo, image->TexFormat,
 173                                                  0, width, height, 1, pitch,
 174                                                  disable_aux_buffers);
 175    if (intel_image->mt == NULL)
 176        return;
 177    intel_image->mt->target = target;
 178    intel_image->mt->total_width = width;
 179    intel_image->mt->total_height = height;
 180    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 181    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 182
 183    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 184
 185    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 186     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 187     * trouble resolving back to destination image due to alignment issues.
 188     */
 189    if (!brw->has_surface_tile_offset &&
 190        (draw_x != 0 || draw_y != 0)) {
 191       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 192       intel_miptree_release(&intel_image->mt);
 193       return;
 194    }
 195
 196    intel_texobj->needs_validate = true;
 197
 198    intel_image->mt->offset = offset;
 199    assert(pitch % intel_image->mt->cpp == 0);
 200    intel_image->base.RowStride = pitch / intel_image->mt->cpp;
 201
 202    /* Immediately validate the image to the object. */
 203    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 204 }
 205
 206 void
 207 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 208                    GLint texture_format,
 209                    __DRIdrawable *dPriv)
 210 {
 211    struct gl_framebuffer *fb = dPriv->driverPrivate;
 212    struct brw_context *brw = pDRICtx->driverPrivate;
 213    struct gl_context *ctx = &brw->ctx;
 214    struct intel_renderbuffer *rb;
 215    struct gl_texture_object *texObj;
 216    struct gl_texture_image *texImage;
 217    int level = 0, internalFormat = 0;
 218    mesa_format texFormat = MESA_FORMAT_NONE;
 219
 220    texObj = _mesa_get_current_tex_object(ctx, target);
 221
 222    if (!texObj)
 223       return;
 224
 225    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 226        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 227       intel_update_renderbuffers(pDRICtx, dPriv);
 228
 229    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 230    /* If the miptree isn't set, then intel_update_renderbuffers was unable
 231     * to get the BO for the drawable from the window system.
 232     */
 233    if (!rb || !rb->mt)
 234       return;
 235
 236    if (rb->mt->cpp == 4) {
 237       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 238          internalFormat = GL_RGB;
 239          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
 240       }
 241       else {
 242          internalFormat = GL_RGBA;
 243          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 244       }
 245    } else if (rb->mt->cpp == 2) {
 246       internalFormat = GL_RGB;
 247       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 248    }
 249
 250    _mesa_lock_texture(&brw->ctx, texObj);
 251    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 252    intel_miptree_make_shareable(brw, rb->mt);
 253    intel_set_texture_image_bo(ctx, texImage, rb->mt->bo, target,
 254                               internalFormat, texFormat, 0,
 255                               rb->Base.Base.Width,
 256                               rb->Base.Base.Height,
 257                               rb->mt->pitch,
 258                               0, 0,
 259                               false /*disable_aux_buffers*/);
 260    _mesa_unlock_texture(&brw->ctx, texObj);
 261 }
 262
 263 static GLboolean
 264 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
 265                                   struct gl_renderbuffer *rb,
 266                                   struct gl_texture_image *image)
 267 {
 268    struct intel_renderbuffer *irb = intel_renderbuffer(rb);
 269    struct intel_texture_image *intel_image = intel_texture_image(image);
 270    struct gl_texture_object *texobj = image->TexObject;
 271    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 272
 273    /* We can only handle RB allocated with AllocRenderbufferStorage, or
 274     * window-system renderbuffers.
 275     */
 276    assert(!rb->TexImage);
 277
 278    if (!irb->mt)
 279       return false;
 280
 281    _mesa_lock_texture(ctx, texobj);
 282    _mesa_init_teximage_fields(ctx, image,
 283                               rb->Width, rb->Height, 1,
 284                               0, rb->InternalFormat, rb->Format);
 285    image->NumSamples = rb->NumSamples;
 286
 287    intel_miptree_reference(&intel_image->mt, irb->mt);
 288
 289    /* Immediately validate the image to the object. */
 290    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 291
 292    intel_texobj->needs_validate = true;
 293    _mesa_unlock_texture(ctx, texobj);
 294
 295    return true;
 296 }
 297
 298 void
 299 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 300 {
 301    /* The old interface didn't have the format argument, so copy our
 302     * implementation's behavior at the time.
 303     */
 304    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 305 }
 306
 307 static void
 308 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 309                               struct gl_texture_object *texObj,
 310                               struct gl_texture_image *texImage,
 311                               GLeglImageOES image_handle)
 312 {
 313    struct brw_context *brw = brw_context(ctx);
 314    __DRIscreen *screen;
 315    __DRIimage *image;
 316
 317    screen = brw->intelScreen->driScrnPriv;
 318    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 319                                               screen->loaderPrivate);
 320    if (image == NULL)
 321       return;
 322
 323    /* We support external textures only for EGLImages created with
 324     * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
 325     */
 326    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 327       _mesa_error(ctx, GL_INVALID_OPERATION,
 328             "glEGLImageTargetTexture2DOES(external target is enabled only "
 329                "for images created with EGL_EXT_image_dma_buf_import");
 330       return;
 331    }
 332
 333    /* Disallow depth/stencil textures: we don't have a way to pass the
 334     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 335     */
 336    if (image->has_depthstencil) {
 337       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 338       return;
 339    }
 340
 341    /* Disable creation of the texture's aux buffers because the driver exposes
 342     * no EGL API to manage them. That is, there is no API for resolving the aux
 343     * buffer's content to the main buffer nor for invalidating the aux buffer's
 344     * content.
 345     */
 346    intel_set_texture_image_bo(ctx, texImage, image->bo,
 347                               target, image->internal_format,
 348                               image->format, image->offset,
 349                               image->width,  image->height,
 350                               image->pitch,
 351                               image->tile_x, image->tile_y,
 352                               true /*disable_aux_buffers*/);
 353 }
 354
 355 /**
 356  * \brief A fast path for glGetTexImage.
 357  *
 358  * \see intel_readpixels_tiled_memcpy()
 359  */
 360 bool
 361 intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
 362                                   struct gl_texture_image *texImage,
 363                                   GLint xoffset, GLint yoffset,
 364                                   GLsizei width, GLsizei height,
 365                                   GLenum format, GLenum type,
 366                                   GLvoid *pixels,
 367                                   const struct gl_pixelstore_attrib *packing)
 368 {
 369    struct brw_context *brw = brw_context(ctx);
 370    struct intel_texture_image *image = intel_texture_image(texImage);
 371    int dst_pitch;
 372
 373    /* The miptree's buffer. */
 374    drm_intel_bo *bo;
 375
 376    int error = 0;
 377
 378    uint32_t cpp;
 379    mem_copy_fn mem_copy = NULL;
 380
 381    /* This fastpath is restricted to specific texture types:
 382     * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
 383     * more types.
 384     *
 385     * FINISHME: The restrictions below on packing alignment and packing row
 386     * length are likely unneeded now because we calculate the destination stride
 387     * with _mesa_image_row_stride. However, before removing the restrictions
 388     * we need tests.
 389     */
 390    if (!brw->has_llc ||
 391        !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
 392        !(texImage->TexObject->Target == GL_TEXTURE_2D ||
 393          texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
 394        pixels == NULL ||
 395        _mesa_is_bufferobj(packing->BufferObj) ||
 396        packing->Alignment > 4 ||
 397        packing->SkipPixels > 0 ||
 398        packing->SkipRows > 0 ||
 399        (packing->RowLength != 0 && packing->RowLength != width) ||
 400        packing->SwapBytes ||
 401        packing->LsbFirst ||
 402        packing->Invert)
 403       return false;
 404
 405    /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
 406     * function doesn't set the last channel to 1.
 407     */
 408    if (texImage->TexFormat == MESA_FORMAT_B8G8R8X8_UNORM ||
 409        texImage->TexFormat == MESA_FORMAT_R8G8B8X8_UNORM)
 410       return false;
 411
 412    if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp,
 413                          INTEL_DOWNLOAD))
 414       return false;
 415
 416    /* If this is a nontrivial texture view, let another path handle it instead. */
 417    if (texImage->TexObject->MinLayer)
 418       return false;
 419
 420    if (!image->mt ||
 421        (image->mt->tiling != I915_TILING_X &&
 422        image->mt->tiling != I915_TILING_Y)) {
 423       /* The algorithm is written only for X- or Y-tiled memory. */
 424       return false;
 425    }
 426
 427    /* Since we are going to write raw data to the miptree, we need to resolve
 428     * any pending fast color clears before we start.
 429     */
 430    intel_miptree_resolve_color(brw, image->mt);
 431
 432    bo = image->mt->bo;
 433
 434    if (drm_intel_bo_references(brw->batch.bo, bo)) {
 435       perf_debug("Flushing before mapping a referenced bo.\n");
 436       intel_batchbuffer_flush(brw);
 437    }
 438
 439    error = brw_bo_map(brw, bo, false /* write enable */, "miptree");
 440    if (error) {
 441       DBG("%s: failed to map bo\n", __func__);
 442       return false;
 443    }
 444
 445    dst_pitch = _mesa_image_row_stride(packing, width, format, type);
 446
 447    DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
 448        "mesa_format=0x%x tiling=%d "
 449        "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
 450        __func__, texImage->Level, xoffset, yoffset, width, height,
 451        format, type, texImage->TexFormat, image->mt->tiling,
 452        packing->Alignment, packing->RowLength, packing->SkipPixels,
 453        packing->SkipRows);
 454
 455    int level = texImage->Level + texImage->TexObject->MinLevel;
 456
 457    /* Adjust x and y offset based on miplevel */
 458    xoffset += image->mt->level[level].level_x;
 459    yoffset += image->mt->level[level].level_y;
 460
 461    tiled_to_linear(
 462       xoffset * cpp, (xoffset + width) * cpp,
 463       yoffset, yoffset + height,
 464       pixels - (ptrdiff_t) yoffset * dst_pitch - (ptrdiff_t) xoffset * cpp,
 465       bo->virtual,
 466       dst_pitch, image->mt->pitch,
 467       brw->has_swizzling,
 468       image->mt->tiling,
 469       mem_copy
 470    );
 471
 472    drm_intel_bo_unmap(bo);
 473    return true;
 474 }
 475
 476 static void
 477 intel_get_tex_image(struct gl_context *ctx,
 478                     GLenum format, GLenum type, GLvoid *pixels,
 479                     struct gl_texture_image *texImage) {
 480    struct brw_context *brw = brw_context(ctx);
 481    bool ok;
 482
 483    DBG("%s\n", __func__);
 484
 485    if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
 486       if (_mesa_meta_pbo_GetTexSubImage(ctx, 3, texImage, 0, 0, 0,
 487                                         texImage->Width, texImage->Height,
 488                                         texImage->Depth, format, type,
 489                                         pixels, &ctx->Pack)) {
 490          /* Flush to guarantee coherency between the render cache and other
 491           * caches the PBO could potentially be bound to after this point.
 492           * See the related comment in intelReadPixels() for a more detailed
 493           * explanation.
 494           */
 495          intel_batchbuffer_emit_mi_flush(brw);
 496          return;
 497       }
 498
 499       perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__);
 500    }
 501
 502    ok = intel_gettexsubimage_tiled_memcpy(ctx, texImage, 0, 0,
 503                                           texImage->Width, texImage->Height,
 504                                           format, type, pixels, &ctx->Pack);
 505
 506    if(ok)
 507       return;
 508
 509    _mesa_meta_GetTexImage(ctx, format, type, pixels, texImage);
 510
 511    DBG("%s - DONE\n", __func__);
 512 }
 513
 514 void
 515 intelInitTextureImageFuncs(struct dd_function_table *functions)
 516 {
 517    functions->TexImage = intelTexImage;
 518    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 519    functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
 520    functions->GetTexImage = intel_get_tex_image;
 521 }