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_get_image_dims(&intelImage->base.Base, &width, &height, &depth);
  46
  47    DBG("%s\n", __func__);
  48
  49    /* Figure out image dimensions at start level. */
  50    for (i = intelImage->base.Base.Level; i > 0; i--) {
  51       width <<= 1;
  52       if (height != 1)
  53          height <<= 1;
  54       if (depth != 1)
  55          depth <<= 1;
  56    }
  57
  58    /* Guess a reasonable value for lastLevel.  This is probably going
  59     * to be wrong fairly often and might mean that we have to look at
  60     * resizable buffers, or require that buffers implement lazy
  61     * pagetable arrangements.
  62     */
  63    if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
  64         intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
  65        intelImage->base.Base.Level == 0 &&
  66        !intelObj->base.GenerateMipmap) {
  67       lastLevel = 0;
  68    } else {
  69       lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
  70                                                width, height, depth) - 1;
  71    }
  72
  73    return intel_miptree_create(brw,
  74                                intelObj->base.Target,
  75                                intelImage->base.Base.TexFormat,
  76                                0,
  77                                lastLevel,
  78                                width,
  79                                height,
  80                                depth,
  81                                intelImage->base.Base.NumSamples,
  82                                layout_flags | MIPTREE_LAYOUT_TILING_ANY);
  83 }
  84
  85 static void
  86 intelTexImage(struct gl_context * ctx,
  87               GLuint dims,
  88               struct gl_texture_image *texImage,
  89               GLenum format, GLenum type, const void *pixels,
  90               const struct gl_pixelstore_attrib *unpack)
  91 {
  92    struct intel_texture_image *intelImage = intel_texture_image(texImage);
  93    bool ok;
  94
  95    bool tex_busy = intelImage->mt && drm_intel_bo_busy(intelImage->mt->bo);
  96
  97    DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
  98        __func__, _mesa_get_format_name(texImage->TexFormat),
  99        _mesa_enum_to_string(texImage->TexObject->Target),
 100        _mesa_enum_to_string(format), _mesa_enum_to_string(type),
 101        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 102
 103    /* Allocate storage for texture data. */
 104    if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
 105       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
 106       return;
 107    }
 108
 109    assert(intelImage->mt);
 110
 111    ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
 112                                    texImage->Width, texImage->Height,
 113                                    texImage->Depth,
 114                                    format, type, pixels,
 115                                    false /*allocate_storage*/,
 116                                    tex_busy, unpack);
 117    if (ok)
 118       return;
 119
 120    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 121                                        0, 0, 0, /*x,y,z offsets*/
 122                                        texImage->Width,
 123                                        texImage->Height,
 124                                        texImage->Depth,
 125                                        format, type, pixels, unpack,
 126                                        false /*allocate_storage*/);
 127    if (ok)
 128       return;
 129
 130    DBG("%s: upload image %dx%dx%d pixels %p\n",
 131        __func__, texImage->Width, texImage->Height, texImage->Depth,
 132        pixels);
 133
 134    _mesa_store_teximage(ctx, dims, texImage,
 135                         format, type, pixels, unpack);
 136 }
 137
 138
 139 /**
 140  * Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
 141  *
 142  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 143  */
 144 static void
 145 intel_set_texture_image_bo(struct gl_context *ctx,
 146                            struct gl_texture_image *image,
 147                            drm_intel_bo *bo,
 148                            GLenum target,
 149                            GLenum internalFormat,
 150                            mesa_format format,
 151                            uint32_t offset,
 152                            GLuint width, GLuint height,
 153                            GLuint pitch,
 154                            GLuint tile_x, GLuint tile_y,
 155                            uint32_t layout_flags)
 156 {
 157    struct brw_context *brw = brw_context(ctx);
 158    struct intel_texture_image *intel_image = intel_texture_image(image);
 159    struct gl_texture_object *texobj = image->TexObject;
 160    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 161    uint32_t draw_x, draw_y;
 162
 163    _mesa_init_teximage_fields(&brw->ctx, image,
 164                               width, height, 1,
 165                               0, internalFormat, format);
 166
 167    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 168
 169    intel_image->mt = intel_miptree_create_for_bo(brw, bo, image->TexFormat,
 170                                                  0, width, height, 1, pitch,
 171                                                  layout_flags);
 172    if (intel_image->mt == NULL)
 173        return;
 174    intel_image->mt->target = target;
 175    intel_image->mt->total_width = width;
 176    intel_image->mt->total_height = height;
 177    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 178    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 179
 180    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 181
 182    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 183     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 184     * trouble resolving back to destination image due to alignment issues.
 185     */
 186    if (!brw->has_surface_tile_offset &&
 187        (draw_x != 0 || draw_y != 0)) {
 188       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 189       intel_miptree_release(&intel_image->mt);
 190       return;
 191    }
 192
 193    intel_texobj->needs_validate = true;
 194
 195    intel_image->mt->offset = offset;
 196    assert(pitch % intel_image->mt->cpp == 0);
 197    intel_image->base.RowStride = pitch / intel_image->mt->cpp;
 198
 199    /* Immediately validate the image to the object. */
 200    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 201 }
 202
 203 void
 204 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 205                    GLint texture_format,
 206                    __DRIdrawable *dPriv)
 207 {
 208    struct gl_framebuffer *fb = dPriv->driverPrivate;
 209    struct brw_context *brw = pDRICtx->driverPrivate;
 210    struct gl_context *ctx = &brw->ctx;
 211    struct intel_renderbuffer *rb;
 212    struct gl_texture_object *texObj;
 213    struct gl_texture_image *texImage;
 214    int level = 0, internalFormat = 0;
 215    mesa_format texFormat = MESA_FORMAT_NONE;
 216
 217    texObj = _mesa_get_current_tex_object(ctx, target);
 218
 219    if (!texObj)
 220       return;
 221
 222    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 223        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 224       intel_update_renderbuffers(pDRICtx, dPriv);
 225
 226    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 227    /* If the miptree isn't set, then intel_update_renderbuffers was unable
 228     * to get the BO for the drawable from the window system.
 229     */
 230    if (!rb || !rb->mt)
 231       return;
 232
 233    if (rb->mt->cpp == 4) {
 234       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 235          internalFormat = GL_RGB;
 236          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
 237       }
 238       else {
 239          internalFormat = GL_RGBA;
 240          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 241       }
 242    } else if (rb->mt->cpp == 2) {
 243       internalFormat = GL_RGB;
 244       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 245    }
 246
 247    _mesa_lock_texture(&brw->ctx, texObj);
 248    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 249    intel_miptree_make_shareable(brw, rb->mt);
 250    intel_set_texture_image_bo(ctx, texImage, rb->mt->bo, target,
 251                               internalFormat, texFormat, 0,
 252                               rb->Base.Base.Width,
 253                               rb->Base.Base.Height,
 254                               rb->mt->pitch,
 255                               0, 0, 0);
 256    _mesa_unlock_texture(&brw->ctx, texObj);
 257 }
 258
 259 static GLboolean
 260 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
 261                                   struct gl_renderbuffer *rb,
 262                                   struct gl_texture_image *image)
 263 {
 264    struct intel_renderbuffer *irb = intel_renderbuffer(rb);
 265    struct intel_texture_image *intel_image = intel_texture_image(image);
 266    struct gl_texture_object *texobj = image->TexObject;
 267    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 268
 269    /* We can only handle RB allocated with AllocRenderbufferStorage, or
 270     * window-system renderbuffers.
 271     */
 272    assert(!rb->TexImage);
 273
 274    if (!irb->mt)
 275       return false;
 276
 277    _mesa_lock_texture(ctx, texobj);
 278    _mesa_init_teximage_fields(ctx, image,
 279                               rb->Width, rb->Height, 1,
 280                               0, rb->InternalFormat, rb->Format);
 281    image->NumSamples = rb->NumSamples;
 282
 283    intel_miptree_reference(&intel_image->mt, irb->mt);
 284
 285    /* Immediately validate the image to the object. */
 286    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 287
 288    intel_texobj->needs_validate = true;
 289    _mesa_unlock_texture(ctx, texobj);
 290
 291    return true;
 292 }
 293
 294 void
 295 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 296 {
 297    /* The old interface didn't have the format argument, so copy our
 298     * implementation's behavior at the time.
 299     */
 300    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 301 }
 302
 303 static void
 304 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 305                               struct gl_texture_object *texObj,
 306                               struct gl_texture_image *texImage,
 307                               GLeglImageOES image_handle)
 308 {
 309    struct brw_context *brw = brw_context(ctx);
 310    __DRIscreen *screen;
 311    __DRIimage *image;
 312
 313    screen = brw->intelScreen->driScrnPriv;
 314    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 315                                               screen->loaderPrivate);
 316    if (image == NULL)
 317       return;
 318
 319    /* We support external textures only for EGLImages created with
 320     * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
 321     */
 322    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 323       _mesa_error(ctx, GL_INVALID_OPERATION,
 324             "glEGLImageTargetTexture2DOES(external target is enabled only "
 325                "for images created with EGL_EXT_image_dma_buf_import");
 326       return;
 327    }
 328
 329    /* Disallow depth/stencil textures: we don't have a way to pass the
 330     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 331     */
 332    if (image->has_depthstencil) {
 333       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 334       return;
 335    }
 336
 337    /* Disable creation of the texture's aux buffers because the driver exposes
 338     * no EGL API to manage them. That is, there is no API for resolving the aux
 339     * buffer's content to the main buffer nor for invalidating the aux buffer's
 340     * content.
 341     */
 342    intel_set_texture_image_bo(ctx, texImage, image->bo,
 343                               target, image->internal_format,
 344                               image->format, image->offset,
 345                               image->width,  image->height,
 346                               image->pitch,
 347                               image->tile_x, image->tile_y,
 348                               MIPTREE_LAYOUT_DISABLE_AUX);
 349 }
 350
 351 /**
 352  * \brief A fast path for glGetTexImage.
 353  *
 354  * \see intel_readpixels_tiled_memcpy()
 355  */
 356 bool
 357 intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
 358                                   struct gl_texture_image *texImage,
 359                                   GLint xoffset, GLint yoffset,
 360                                   GLsizei width, GLsizei height,
 361                                   GLenum format, GLenum type,
 362                                   GLvoid *pixels,
 363                                   const struct gl_pixelstore_attrib *packing)
 364 {
 365    struct brw_context *brw = brw_context(ctx);
 366    struct intel_texture_image *image = intel_texture_image(texImage);
 367    int dst_pitch;
 368
 369    /* The miptree's buffer. */
 370    drm_intel_bo *bo;
 371
 372    int error = 0;
 373
 374    uint32_t cpp;
 375    mem_copy_fn mem_copy = NULL;
 376
 377    /* This fastpath is restricted to specific texture types:
 378     * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
 379     * more types.
 380     *
 381     * FINISHME: The restrictions below on packing alignment and packing row
 382     * length are likely unneeded now because we calculate the destination stride
 383     * with _mesa_image_row_stride. However, before removing the restrictions
 384     * we need tests.
 385     */
 386    if (!brw->has_llc ||
 387        !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
 388        !(texImage->TexObject->Target == GL_TEXTURE_2D ||
 389          texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
 390        pixels == NULL ||
 391        _mesa_is_bufferobj(packing->BufferObj) ||
 392        packing->Alignment > 4 ||
 393        packing->SkipPixels > 0 ||
 394        packing->SkipRows > 0 ||
 395        (packing->RowLength != 0 && packing->RowLength != width) ||
 396        packing->SwapBytes ||
 397        packing->LsbFirst ||
 398        packing->Invert)
 399       return false;
 400
 401    /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
 402     * function doesn't set the last channel to 1.
 403     */
 404    if (texImage->TexFormat == MESA_FORMAT_B8G8R8X8_UNORM ||
 405        texImage->TexFormat == MESA_FORMAT_R8G8B8X8_UNORM)
 406       return false;
 407
 408    if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp,
 409                          INTEL_DOWNLOAD))
 410       return false;
 411
 412    /* If this is a nontrivial texture view, let another path handle it instead. */
 413    if (texImage->TexObject->MinLayer)
 414       return false;
 415
 416    if (!image->mt ||
 417        (image->mt->tiling != I915_TILING_X &&
 418        image->mt->tiling != I915_TILING_Y)) {
 419       /* The algorithm is written only for X- or Y-tiled memory. */
 420       return false;
 421    }
 422
 423    /* Since we are going to write raw data to the miptree, we need to resolve
 424     * any pending fast color clears before we start.
 425     */
 426    intel_miptree_resolve_color(brw, image->mt);
 427
 428    bo = image->mt->bo;
 429
 430    if (drm_intel_bo_references(brw->batch.bo, bo)) {
 431       perf_debug("Flushing before mapping a referenced bo.\n");
 432       intel_batchbuffer_flush(brw);
 433    }
 434
 435    error = brw_bo_map(brw, bo, false /* write enable */, "miptree");
 436    if (error) {
 437       DBG("%s: failed to map bo\n", __func__);
 438       return false;
 439    }
 440
 441    dst_pitch = _mesa_image_row_stride(packing, width, format, type);
 442
 443    DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
 444        "mesa_format=0x%x tiling=%d "
 445        "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
 446        __func__, texImage->Level, xoffset, yoffset, width, height,
 447        format, type, texImage->TexFormat, image->mt->tiling,
 448        packing->Alignment, packing->RowLength, packing->SkipPixels,
 449        packing->SkipRows);
 450
 451    int level = texImage->Level + texImage->TexObject->MinLevel;
 452
 453    /* Adjust x and y offset based on miplevel */
 454    xoffset += image->mt->level[level].level_x;
 455    yoffset += image->mt->level[level].level_y;
 456
 457    tiled_to_linear(
 458       xoffset * cpp, (xoffset + width) * cpp,
 459       yoffset, yoffset + height,
 460       pixels - (ptrdiff_t) yoffset * dst_pitch - (ptrdiff_t) xoffset * cpp,
 461       bo->virtual,
 462       dst_pitch, image->mt->pitch,
 463       brw->has_swizzling,
 464       image->mt->tiling,
 465       mem_copy
 466    );
 467
 468    drm_intel_bo_unmap(bo);
 469    return true;
 470 }
 471
 472 static void
 473 intel_get_tex_sub_image(struct gl_context *ctx,
 474                         GLint xoffset, GLint yoffset, GLint zoffset,
 475                         GLsizei width, GLsizei height, GLint depth,
 476                         GLenum format, GLenum type, GLvoid *pixels,
 477                         struct gl_texture_image *texImage)
 478 {
 479    struct brw_context *brw = brw_context(ctx);
 480    bool ok;
 481
 482    DBG("%s\n", __func__);
 483
 484    if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
 485       if (_mesa_meta_pbo_GetTexSubImage(ctx, 3, texImage,
 486                                         xoffset, yoffset, zoffset,
 487                                         width, height, depth, format, type,
 488                                         pixels, &ctx->Pack)) {
 489          /* Flush to guarantee coherency between the render cache and other
 490           * caches the PBO could potentially be bound to after this point.
 491           * See the related comment in intelReadPixels() for a more detailed
 492           * explanation.
 493           */
 494          brw_emit_mi_flush(brw);
 495          return;
 496       }
 497
 498       perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__);
 499    }
 500
 501    ok = intel_gettexsubimage_tiled_memcpy(ctx, texImage, xoffset, yoffset,
 502                                           width, height,
 503                                           format, type, pixels, &ctx->Pack);
 504
 505    if(ok)
 506       return;
 507
 508    _mesa_meta_GetTexSubImage(ctx, xoffset, yoffset, zoffset,
 509                              width, height, depth,
 510                              format, type, pixels, texImage);
 511
 512    DBG("%s - DONE\n", __func__);
 513 }
 514
 515 void
 516 intelInitTextureImageFuncs(struct dd_function_table *functions)
 517 {
 518    functions->TexImage = intelTexImage;
 519    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 520    functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
 521    functions->GetTexSubImage = intel_get_tex_sub_image;
 522 }