src/mesa/drivers/dri/i965/intel_tex_image.c

   1
   2 #include "main/macros.h"
   3 #include "main/mtypes.h"
   4 #include "main/enums.h"
   5 #include "main/bufferobj.h"
   6 #include "main/context.h"
   7 #include "main/formats.h"
   8 #include "main/image.h"
   9 #include "main/pbo.h"
  10 #include "main/renderbuffer.h"
  11 #include "main/texcompress.h"
  12 #include "main/texgetimage.h"
  13 #include "main/texobj.h"
  14 #include "main/teximage.h"
  15 #include "main/texstore.h"
  16
  17 #include "drivers/common/meta.h"
  18
  19 #include "intel_mipmap_tree.h"
  20 #include "intel_buffer_objects.h"
  21 #include "intel_batchbuffer.h"
  22 #include "intel_tex.h"
  23 #include "intel_blit.h"
  24 #include "intel_fbo.h"
  25 #include "intel_image.h"
  26 #include "intel_tiled_memcpy.h"
  27 #include "brw_context.h"
  28
  29 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  30
  31 /* Work back from the specified level of the image to the baselevel and create a
  32  * miptree of that size.
  33  */
  34 struct intel_mipmap_tree *
  35 intel_miptree_create_for_teximage(struct brw_context *brw,
  36                                   struct intel_texture_object *intelObj,
  37                                   struct intel_texture_image *intelImage,
  38                                   uint32_t layout_flags)
  39 {
  40    GLuint lastLevel;
  41    int width, height, depth;
  42    GLuint i;
  43
  44    intel_get_image_dims(&intelImage->base.Base, &width, &height, &depth);
  45
  46    DBG("%s\n", __func__);
  47
  48    /* Figure out image dimensions at start level. */
  49    for (i = intelImage->base.Base.Level; i > 0; i--) {
  50       width <<= 1;
  51       if (height != 1)
  52          height <<= 1;
  53       if (intelObj->base.Target == GL_TEXTURE_3D)
  54          depth <<= 1;
  55    }
  56
  57    /* Guess a reasonable value for lastLevel.  This is probably going
  58     * to be wrong fairly often and might mean that we have to look at
  59     * resizable buffers, or require that buffers implement lazy
  60     * pagetable arrangements.
  61     */
  62    if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
  63         intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
  64        intelImage->base.Base.Level == 0 &&
  65        !intelObj->base.GenerateMipmap) {
  66       lastLevel = 0;
  67    } else {
  68       lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
  69                                                width, height, depth) - 1;
  70    }
  71
  72    return intel_miptree_create(brw,
  73                                intelObj->base.Target,
  74                                intelImage->base.Base.TexFormat,
  75                                0,
  76                                lastLevel,
  77                                width,
  78                                height,
  79                                depth,
  80                                intelImage->base.Base.NumSamples,
  81                                layout_flags | MIPTREE_LAYOUT_TILING_ANY);
  82 }
  83
  84 static void
  85 intelTexImage(struct gl_context * ctx,
  86               GLuint dims,
  87               struct gl_texture_image *texImage,
  88               GLenum format, GLenum type, const void *pixels,
  89               const struct gl_pixelstore_attrib *unpack)
  90 {
  91    struct intel_texture_image *intelImage = intel_texture_image(texImage);
  92    bool ok;
  93
  94    bool tex_busy = intelImage->mt && drm_intel_bo_busy(intelImage->mt->bo);
  95
  96    DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
  97        __func__, _mesa_get_format_name(texImage->TexFormat),
  98        _mesa_enum_to_string(texImage->TexObject->Target),
  99        _mesa_enum_to_string(format), _mesa_enum_to_string(type),
 100        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 101
 102    /* Allocate storage for texture data. */
 103    if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
 104       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
 105       return;
 106    }
 107
 108    assert(intelImage->mt);
 109
 110    ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
 111                                    texImage->Width, texImage->Height,
 112                                    texImage->Depth,
 113                                    format, type, pixels,
 114                                    tex_busy, unpack);
 115    if (ok)
 116       return;
 117
 118    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 119                                        0, 0, 0, /*x,y,z offsets*/
 120                                        texImage->Width,
 121                                        texImage->Height,
 122                                        texImage->Depth,
 123                                        format, type, pixels, unpack,
 124                                        false /*allocate_storage*/);
 125    if (ok)
 126       return;
 127
 128    DBG("%s: upload image %dx%dx%d pixels %p\n",
 129        __func__, texImage->Width, texImage->Height, texImage->Depth,
 130        pixels);
 131
 132    _mesa_store_teximage(ctx, dims, texImage,
 133                         format, type, pixels, unpack);
 134 }
 135
 136
 137 /**
 138  * Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
 139  *
 140  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 141  */
 142 static void
 143 intel_set_texture_image_bo(struct gl_context *ctx,
 144                            struct gl_texture_image *image,
 145                            drm_intel_bo *bo,
 146                            GLenum target,
 147                            GLenum internalFormat,
 148                            mesa_format format,
 149                            uint32_t offset,
 150                            GLuint width, GLuint height,
 151                            GLuint pitch,
 152                            GLuint tile_x, GLuint tile_y,
 153                            uint32_t layout_flags)
 154 {
 155    struct brw_context *brw = brw_context(ctx);
 156    struct intel_texture_image *intel_image = intel_texture_image(image);
 157    struct gl_texture_object *texobj = image->TexObject;
 158    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 159    uint32_t draw_x, draw_y;
 160
 161    _mesa_init_teximage_fields(&brw->ctx, image,
 162                               width, height, 1,
 163                               0, internalFormat, format);
 164
 165    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 166
 167    intel_image->mt = intel_miptree_create_for_bo(brw, bo, image->TexFormat,
 168                                                  0, width, height, 1, pitch,
 169                                                  layout_flags);
 170    if (intel_image->mt == NULL)
 171        return;
 172    intel_image->mt->target = target;
 173    intel_image->mt->total_width = width;
 174    intel_image->mt->total_height = height;
 175    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 176    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 177
 178    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 179
 180    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 181     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 182     * trouble resolving back to destination image due to alignment issues.
 183     */
 184    if (!brw->has_surface_tile_offset &&
 185        (draw_x != 0 || draw_y != 0)) {
 186       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 187       intel_miptree_release(&intel_image->mt);
 188       return;
 189    }
 190
 191    intel_texobj->needs_validate = true;
 192
 193    intel_image->mt->offset = offset;
 194    assert(pitch % intel_image->mt->cpp == 0);
 195    intel_image->base.RowStride = pitch / intel_image->mt->cpp;
 196
 197    /* Immediately validate the image to the object. */
 198    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 199 }
 200
 201 void
 202 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 203                    GLint texture_format,
 204                    __DRIdrawable *dPriv)
 205 {
 206    struct gl_framebuffer *fb = dPriv->driverPrivate;
 207    struct brw_context *brw = pDRICtx->driverPrivate;
 208    struct gl_context *ctx = &brw->ctx;
 209    struct intel_renderbuffer *rb;
 210    struct gl_texture_object *texObj;
 211    struct gl_texture_image *texImage;
 212    int level = 0, internalFormat = 0;
 213    mesa_format texFormat = MESA_FORMAT_NONE;
 214
 215    texObj = _mesa_get_current_tex_object(ctx, target);
 216
 217    if (!texObj)
 218       return;
 219
 220    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 221        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 222       intel_update_renderbuffers(pDRICtx, dPriv);
 223
 224    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 225    /* If the miptree isn't set, then intel_update_renderbuffers was unable
 226     * to get the BO for the drawable from the window system.
 227     */
 228    if (!rb || !rb->mt)
 229       return;
 230
 231    if (rb->mt->cpp == 4) {
 232       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 233          internalFormat = GL_RGB;
 234          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
 235       }
 236       else {
 237          internalFormat = GL_RGBA;
 238          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 239       }
 240    } else if (rb->mt->cpp == 2) {
 241       internalFormat = GL_RGB;
 242       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 243    }
 244
 245    _mesa_lock_texture(&brw->ctx, texObj);
 246    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 247    intel_miptree_make_shareable(brw, rb->mt);
 248    intel_set_texture_image_bo(ctx, texImage, rb->mt->bo, target,
 249                               internalFormat, texFormat, 0,
 250                               rb->Base.Base.Width,
 251                               rb->Base.Base.Height,
 252                               rb->mt->pitch,
 253                               0, 0, 0);
 254    _mesa_unlock_texture(&brw->ctx, texObj);
 255 }
 256
 257 static GLboolean
 258 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
 259                                   struct gl_renderbuffer *rb,
 260                                   struct gl_texture_image *image)
 261 {
 262    struct intel_renderbuffer *irb = intel_renderbuffer(rb);
 263    struct intel_texture_image *intel_image = intel_texture_image(image);
 264    struct gl_texture_object *texobj = image->TexObject;
 265    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 266
 267    /* We can only handle RB allocated with AllocRenderbufferStorage, or
 268     * window-system renderbuffers.
 269     */
 270    assert(!rb->TexImage);
 271
 272    if (!irb->mt)
 273       return false;
 274
 275    _mesa_lock_texture(ctx, texobj);
 276    _mesa_init_teximage_fields(ctx, image,
 277                               rb->Width, rb->Height, 1,
 278                               0, rb->InternalFormat, rb->Format);
 279    image->NumSamples = rb->NumSamples;
 280
 281    intel_miptree_reference(&intel_image->mt, irb->mt);
 282
 283    /* Immediately validate the image to the object. */
 284    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 285
 286    intel_texobj->needs_validate = true;
 287    _mesa_unlock_texture(ctx, texobj);
 288
 289    return true;
 290 }
 291
 292 void
 293 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 294 {
 295    /* The old interface didn't have the format argument, so copy our
 296     * implementation's behavior at the time.
 297     */
 298    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 299 }
 300
 301 static void
 302 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 303                               struct gl_texture_object *texObj,
 304                               struct gl_texture_image *texImage,
 305                               GLeglImageOES image_handle)
 306 {
 307    struct brw_context *brw = brw_context(ctx);
 308    __DRIscreen *screen;
 309    __DRIimage *image;
 310
 311    screen = brw->intelScreen->driScrnPriv;
 312    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 313                                               screen->loaderPrivate);
 314    if (image == NULL)
 315       return;
 316
 317    /* We support external textures only for EGLImages created with
 318     * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
 319     */
 320    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 321       _mesa_error(ctx, GL_INVALID_OPERATION,
 322             "glEGLImageTargetTexture2DOES(external target is enabled only "
 323                "for images created with EGL_EXT_image_dma_buf_import");
 324       return;
 325    }
 326
 327    /* Disallow depth/stencil textures: we don't have a way to pass the
 328     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 329     */
 330    if (image->has_depthstencil) {
 331       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 332       return;
 333    }
 334
 335    /* Disable creation of the texture's aux buffers because the driver exposes
 336     * no EGL API to manage them. That is, there is no API for resolving the aux
 337     * buffer's content to the main buffer nor for invalidating the aux buffer's
 338     * content.
 339     */
 340    intel_set_texture_image_bo(ctx, texImage, image->bo,
 341                               target, image->internal_format,
 342                               image->format, image->offset,
 343                               image->width,  image->height,
 344                               image->pitch,
 345                               image->tile_x, image->tile_y,
 346                               MIPTREE_LAYOUT_DISABLE_AUX);
 347 }
 348
 349 /**
 350  * \brief A fast path for glGetTexImage.
 351  *
 352  * \see intel_readpixels_tiled_memcpy()
 353  */
 354 bool
 355 intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
 356                                   struct gl_texture_image *texImage,
 357                                   GLint xoffset, GLint yoffset,
 358                                   GLsizei width, GLsizei height,
 359                                   GLenum format, GLenum type,
 360                                   GLvoid *pixels,
 361                                   const struct gl_pixelstore_attrib *packing)
 362 {
 363    struct brw_context *brw = brw_context(ctx);
 364    struct intel_texture_image *image = intel_texture_image(texImage);
 365    int dst_pitch;
 366
 367    /* The miptree's buffer. */
 368    drm_intel_bo *bo;
 369
 370    int error = 0;
 371
 372    uint32_t cpp;
 373    mem_copy_fn mem_copy = NULL;
 374
 375    /* This fastpath is restricted to specific texture types:
 376     * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
 377     * more types.
 378     *
 379     * FINISHME: The restrictions below on packing alignment and packing row
 380     * length are likely unneeded now because we calculate the destination stride
 381     * with _mesa_image_row_stride. However, before removing the restrictions
 382     * we need tests.
 383     */
 384    if (!brw->has_llc ||
 385        !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
 386        !(texImage->TexObject->Target == GL_TEXTURE_2D ||
 387          texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
 388        pixels == NULL ||
 389        _mesa_is_bufferobj(packing->BufferObj) ||
 390        packing->Alignment > 4 ||
 391        packing->SkipPixels > 0 ||
 392        packing->SkipRows > 0 ||
 393        (packing->RowLength != 0 && packing->RowLength != width) ||
 394        packing->SwapBytes ||
 395        packing->LsbFirst ||
 396        packing->Invert)
 397       return false;
 398
 399    /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
 400     * function doesn't set the last channel to 1. Note this checks BaseFormat
 401     * rather than TexFormat in case the RGBX format is being simulated with an
 402     * RGBA format.
 403     */
 404    if (texImage->_BaseFormat == GL_RGB)
 405       return false;
 406
 407    if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp))
 408       return false;
 409
 410    /* If this is a nontrivial texture view, let another path handle it instead. */
 411    if (texImage->TexObject->MinLayer)
 412       return false;
 413
 414    if (!image->mt ||
 415        (image->mt->tiling != I915_TILING_X &&
 416        image->mt->tiling != I915_TILING_Y)) {
 417       /* The algorithm is written only for X- or Y-tiled memory. */
 418       return false;
 419    }
 420
 421    /* Since we are going to write raw data to the miptree, we need to resolve
 422     * any pending fast color clears before we start.
 423     */
 424    intel_miptree_resolve_color(brw, image->mt, 0);
 425
 426    bo = image->mt->bo;
 427
 428    if (drm_intel_bo_references(brw->batch.bo, bo)) {
 429       perf_debug("Flushing before mapping a referenced bo.\n");
 430       intel_batchbuffer_flush(brw);
 431    }
 432
 433    error = brw_bo_map(brw, bo, false /* write enable */, "miptree");
 434    if (error) {
 435       DBG("%s: failed to map bo\n", __func__);
 436       return false;
 437    }
 438
 439    dst_pitch = _mesa_image_row_stride(packing, width, format, type);
 440
 441    DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
 442        "mesa_format=0x%x tiling=%d "
 443        "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
 444        __func__, texImage->Level, xoffset, yoffset, width, height,
 445        format, type, texImage->TexFormat, image->mt->tiling,
 446        packing->Alignment, packing->RowLength, packing->SkipPixels,
 447        packing->SkipRows);
 448
 449    int level = texImage->Level + texImage->TexObject->MinLevel;
 450
 451    /* Adjust x and y offset based on miplevel */
 452    xoffset += image->mt->level[level].level_x;
 453    yoffset += image->mt->level[level].level_y;
 454
 455    tiled_to_linear(
 456       xoffset * cpp, (xoffset + width) * cpp,
 457       yoffset, yoffset + height,
 458       pixels - (ptrdiff_t) yoffset * dst_pitch - (ptrdiff_t) xoffset * cpp,
 459       bo->virtual,
 460       dst_pitch, image->mt->pitch,
 461       brw->has_swizzling,
 462       image->mt->tiling,
 463       mem_copy
 464    );
 465
 466    drm_intel_bo_unmap(bo);
 467    return true;
 468 }
 469
 470 static void
 471 intel_get_tex_sub_image(struct gl_context *ctx,
 472                         GLint xoffset, GLint yoffset, GLint zoffset,
 473                         GLsizei width, GLsizei height, GLint depth,
 474                         GLenum format, GLenum type, GLvoid *pixels,
 475                         struct gl_texture_image *texImage)
 476 {
 477    struct brw_context *brw = brw_context(ctx);
 478    bool ok;
 479
 480    DBG("%s\n", __func__);
 481
 482    if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
 483       if (_mesa_meta_pbo_GetTexSubImage(ctx, 3, texImage,
 484                                         xoffset, yoffset, zoffset,
 485                                         width, height, depth, format, type,
 486                                         pixels, &ctx->Pack)) {
 487          /* Flush to guarantee coherency between the render cache and other
 488           * caches the PBO could potentially be bound to after this point.
 489           * See the related comment in intelReadPixels() for a more detailed
 490           * explanation.
 491           */
 492          brw_emit_mi_flush(brw);
 493          return;
 494       }
 495
 496       perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__);
 497    }
 498
 499    ok = intel_gettexsubimage_tiled_memcpy(ctx, texImage, xoffset, yoffset,
 500                                           width, height,
 501                                           format, type, pixels, &ctx->Pack);
 502
 503    if(ok)
 504       return;
 505
 506    _mesa_meta_GetTexSubImage(ctx, xoffset, yoffset, zoffset,
 507                              width, height, depth,
 508                              format, type, pixels, texImage);
 509
 510    DBG("%s - DONE\n", __func__);
 511 }
 512
 513 void
 514 intelInitTextureImageFuncs(struct dd_function_table *functions)
 515 {
 516    functions->TexImage = intelTexImage;
 517    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 518    functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
 519    functions->GetTexSubImage = intel_get_tex_sub_image;
 520 }