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                                layout_flags | MIPTREE_LAYOUT_TILING_ANY);
  84 }
  85
  86 static void
  87 intelTexImage(struct gl_context * ctx,
  88               GLuint dims,
  89               struct gl_texture_image *texImage,
  90               GLenum format, GLenum type, const void *pixels,
  91               const struct gl_pixelstore_attrib *unpack)
  92 {
  93    struct intel_texture_image *intelImage = intel_texture_image(texImage);
  94    bool ok;
  95
  96    bool tex_busy = intelImage->mt && drm_intel_bo_busy(intelImage->mt->bo);
  97
  98    DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
  99        __func__, _mesa_get_format_name(texImage->TexFormat),
 100        _mesa_enum_to_string(texImage->TexObject->Target),
 101        _mesa_enum_to_string(format), _mesa_enum_to_string(type),
 102        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 103
 104    /* Allocate storage for texture data. */
 105    if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
 106       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
 107       return;
 108    }
 109
 110    assert(intelImage->mt);
 111
 112    ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
 113                                    texImage->Width, texImage->Height,
 114                                    texImage->Depth,
 115                                    format, type, pixels,
 116                                    false /*allocate_storage*/,
 117                                    tex_busy, unpack);
 118    if (ok)
 119       return;
 120
 121    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 122                                        0, 0, 0, /*x,y,z offsets*/
 123                                        texImage->Width,
 124                                        texImage->Height,
 125                                        texImage->Depth,
 126                                        format, type, pixels, unpack,
 127                                        false /*allocate_storage*/);
 128    if (ok)
 129       return;
 130
 131    DBG("%s: upload image %dx%dx%d pixels %p\n",
 132        __func__, texImage->Width, texImage->Height, texImage->Depth,
 133        pixels);
 134
 135    _mesa_store_teximage(ctx, dims, texImage,
 136                         format, type, pixels, unpack);
 137 }
 138
 139
 140 /**
 141  * Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
 142  *
 143  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 144  */
 145 static void
 146 intel_set_texture_image_bo(struct gl_context *ctx,
 147                            struct gl_texture_image *image,
 148                            drm_intel_bo *bo,
 149                            GLenum target,
 150                            GLenum internalFormat,
 151                            mesa_format format,
 152                            uint32_t offset,
 153                            GLuint width, GLuint height,
 154                            GLuint pitch,
 155                            GLuint tile_x, GLuint tile_y,
 156                            uint32_t layout_flags)
 157 {
 158    struct brw_context *brw = brw_context(ctx);
 159    struct intel_texture_image *intel_image = intel_texture_image(image);
 160    struct gl_texture_object *texobj = image->TexObject;
 161    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 162    uint32_t draw_x, draw_y;
 163
 164    _mesa_init_teximage_fields(&brw->ctx, image,
 165                               width, height, 1,
 166                               0, internalFormat, format);
 167
 168    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 169
 170    intel_image->mt = intel_miptree_create_for_bo(brw, bo, image->TexFormat,
 171                                                  0, width, height, 1, pitch,
 172                                                  layout_flags);
 173    if (intel_image->mt == NULL)
 174        return;
 175    intel_image->mt->target = target;
 176    intel_image->mt->total_width = width;
 177    intel_image->mt->total_height = height;
 178    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 179    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 180
 181    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 182
 183    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 184     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 185     * trouble resolving back to destination image due to alignment issues.
 186     */
 187    if (!brw->has_surface_tile_offset &&
 188        (draw_x != 0 || draw_y != 0)) {
 189       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 190       intel_miptree_release(&intel_image->mt);
 191       return;
 192    }
 193
 194    intel_texobj->needs_validate = true;
 195
 196    intel_image->mt->offset = offset;
 197    assert(pitch % intel_image->mt->cpp == 0);
 198    intel_image->base.RowStride = pitch / intel_image->mt->cpp;
 199
 200    /* Immediately validate the image to the object. */
 201    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 202 }
 203
 204 void
 205 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 206                    GLint texture_format,
 207                    __DRIdrawable *dPriv)
 208 {
 209    struct gl_framebuffer *fb = dPriv->driverPrivate;
 210    struct brw_context *brw = pDRICtx->driverPrivate;
 211    struct gl_context *ctx = &brw->ctx;
 212    struct intel_renderbuffer *rb;
 213    struct gl_texture_object *texObj;
 214    struct gl_texture_image *texImage;
 215    int level = 0, internalFormat = 0;
 216    mesa_format texFormat = MESA_FORMAT_NONE;
 217
 218    texObj = _mesa_get_current_tex_object(ctx, target);
 219
 220    if (!texObj)
 221       return;
 222
 223    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 224        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 225       intel_update_renderbuffers(pDRICtx, dPriv);
 226
 227    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 228    /* If the miptree isn't set, then intel_update_renderbuffers was unable
 229     * to get the BO for the drawable from the window system.
 230     */
 231    if (!rb || !rb->mt)
 232       return;
 233
 234    if (rb->mt->cpp == 4) {
 235       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 236          internalFormat = GL_RGB;
 237          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
 238       }
 239       else {
 240          internalFormat = GL_RGBA;
 241          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 242       }
 243    } else if (rb->mt->cpp == 2) {
 244       internalFormat = GL_RGB;
 245       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 246    }
 247
 248    _mesa_lock_texture(&brw->ctx, texObj);
 249    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 250    intel_miptree_make_shareable(brw, rb->mt);
 251    intel_set_texture_image_bo(ctx, texImage, rb->mt->bo, target,
 252                               internalFormat, texFormat, 0,
 253                               rb->Base.Base.Width,
 254                               rb->Base.Base.Height,
 255                               rb->mt->pitch,
 256                               0, 0, 0);
 257    _mesa_unlock_texture(&brw->ctx, texObj);
 258 }
 259
 260 static GLboolean
 261 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
 262                                   struct gl_renderbuffer *rb,
 263                                   struct gl_texture_image *image)
 264 {
 265    struct intel_renderbuffer *irb = intel_renderbuffer(rb);
 266    struct intel_texture_image *intel_image = intel_texture_image(image);
 267    struct gl_texture_object *texobj = image->TexObject;
 268    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 269
 270    /* We can only handle RB allocated with AllocRenderbufferStorage, or
 271     * window-system renderbuffers.
 272     */
 273    assert(!rb->TexImage);
 274
 275    if (!irb->mt)
 276       return false;
 277
 278    _mesa_lock_texture(ctx, texobj);
 279    _mesa_init_teximage_fields(ctx, image,
 280                               rb->Width, rb->Height, 1,
 281                               0, rb->InternalFormat, rb->Format);
 282    image->NumSamples = rb->NumSamples;
 283
 284    intel_miptree_reference(&intel_image->mt, irb->mt);
 285
 286    /* Immediately validate the image to the object. */
 287    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 288
 289    intel_texobj->needs_validate = true;
 290    _mesa_unlock_texture(ctx, texobj);
 291
 292    return true;
 293 }
 294
 295 void
 296 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 297 {
 298    /* The old interface didn't have the format argument, so copy our
 299     * implementation's behavior at the time.
 300     */
 301    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 302 }
 303
 304 static void
 305 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 306                               struct gl_texture_object *texObj,
 307                               struct gl_texture_image *texImage,
 308                               GLeglImageOES image_handle)
 309 {
 310    struct brw_context *brw = brw_context(ctx);
 311    __DRIscreen *screen;
 312    __DRIimage *image;
 313
 314    screen = brw->intelScreen->driScrnPriv;
 315    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 316                                               screen->loaderPrivate);
 317    if (image == NULL)
 318       return;
 319
 320    /* We support external textures only for EGLImages created with
 321     * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
 322     */
 323    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 324       _mesa_error(ctx, GL_INVALID_OPERATION,
 325             "glEGLImageTargetTexture2DOES(external target is enabled only "
 326                "for images created with EGL_EXT_image_dma_buf_import");
 327       return;
 328    }
 329
 330    /* Disallow depth/stencil textures: we don't have a way to pass the
 331     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 332     */
 333    if (image->has_depthstencil) {
 334       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 335       return;
 336    }
 337
 338    /* Disable creation of the texture's aux buffers because the driver exposes
 339     * no EGL API to manage them. That is, there is no API for resolving the aux
 340     * buffer's content to the main buffer nor for invalidating the aux buffer's
 341     * content.
 342     */
 343    intel_set_texture_image_bo(ctx, texImage, image->bo,
 344                               target, image->internal_format,
 345                               image->format, image->offset,
 346                               image->width,  image->height,
 347                               image->pitch,
 348                               image->tile_x, image->tile_y,
 349                               MIPTREE_LAYOUT_DISABLE_AUX);
 350 }
 351
 352 /**
 353  * \brief A fast path for glGetTexImage.
 354  *
 355  * \see intel_readpixels_tiled_memcpy()
 356  */
 357 bool
 358 intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
 359                                   struct gl_texture_image *texImage,
 360                                   GLint xoffset, GLint yoffset,
 361                                   GLsizei width, GLsizei height,
 362                                   GLenum format, GLenum type,
 363                                   GLvoid *pixels,
 364                                   const struct gl_pixelstore_attrib *packing)
 365 {
 366    struct brw_context *brw = brw_context(ctx);
 367    struct intel_texture_image *image = intel_texture_image(texImage);
 368    int dst_pitch;
 369
 370    /* The miptree's buffer. */
 371    drm_intel_bo *bo;
 372
 373    int error = 0;
 374
 375    uint32_t cpp;
 376    mem_copy_fn mem_copy = NULL;
 377
 378    /* This fastpath is restricted to specific texture types:
 379     * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
 380     * more types.
 381     *
 382     * FINISHME: The restrictions below on packing alignment and packing row
 383     * length are likely unneeded now because we calculate the destination stride
 384     * with _mesa_image_row_stride. However, before removing the restrictions
 385     * we need tests.
 386     */
 387    if (!brw->has_llc ||
 388        !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
 389        !(texImage->TexObject->Target == GL_TEXTURE_2D ||
 390          texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
 391        pixels == NULL ||
 392        _mesa_is_bufferobj(packing->BufferObj) ||
 393        packing->Alignment > 4 ||
 394        packing->SkipPixels > 0 ||
 395        packing->SkipRows > 0 ||
 396        (packing->RowLength != 0 && packing->RowLength != width) ||
 397        packing->SwapBytes ||
 398        packing->LsbFirst ||
 399        packing->Invert)
 400       return false;
 401
 402    /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
 403     * function doesn't set the last channel to 1.
 404     */
 405    if (texImage->TexFormat == MESA_FORMAT_B8G8R8X8_UNORM ||
 406        texImage->TexFormat == MESA_FORMAT_R8G8B8X8_UNORM)
 407       return false;
 408
 409    if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp,
 410                          INTEL_DOWNLOAD))
 411       return false;
 412
 413    /* If this is a nontrivial texture view, let another path handle it instead. */
 414    if (texImage->TexObject->MinLayer)
 415       return false;
 416
 417    if (!image->mt ||
 418        (image->mt->tiling != I915_TILING_X &&
 419        image->mt->tiling != I915_TILING_Y)) {
 420       /* The algorithm is written only for X- or Y-tiled memory. */
 421       return false;
 422    }
 423
 424    /* Since we are going to write raw data to the miptree, we need to resolve
 425     * any pending fast color clears before we start.
 426     */
 427    intel_miptree_resolve_color(brw, image->mt);
 428
 429    bo = image->mt->bo;
 430
 431    if (drm_intel_bo_references(brw->batch.bo, bo)) {
 432       perf_debug("Flushing before mapping a referenced bo.\n");
 433       intel_batchbuffer_flush(brw);
 434    }
 435
 436    error = brw_bo_map(brw, bo, false /* write enable */, "miptree");
 437    if (error) {
 438       DBG("%s: failed to map bo\n", __func__);
 439       return false;
 440    }
 441
 442    dst_pitch = _mesa_image_row_stride(packing, width, format, type);
 443
 444    DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
 445        "mesa_format=0x%x tiling=%d "
 446        "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
 447        __func__, texImage->Level, xoffset, yoffset, width, height,
 448        format, type, texImage->TexFormat, image->mt->tiling,
 449        packing->Alignment, packing->RowLength, packing->SkipPixels,
 450        packing->SkipRows);
 451
 452    int level = texImage->Level + texImage->TexObject->MinLevel;
 453
 454    /* Adjust x and y offset based on miplevel */
 455    xoffset += image->mt->level[level].level_x;
 456    yoffset += image->mt->level[level].level_y;
 457
 458    tiled_to_linear(
 459       xoffset * cpp, (xoffset + width) * cpp,
 460       yoffset, yoffset + height,
 461       pixels - (ptrdiff_t) yoffset * dst_pitch - (ptrdiff_t) xoffset * cpp,
 462       bo->virtual,
 463       dst_pitch, image->mt->pitch,
 464       brw->has_swizzling,
 465       image->mt->tiling,
 466       mem_copy
 467    );
 468
 469    drm_intel_bo_unmap(bo);
 470    return true;
 471 }
 472
 473 static void
 474 intel_get_tex_sub_image(struct gl_context *ctx,
 475                         GLint xoffset, GLint yoffset, GLint zoffset,
 476                         GLsizei width, GLsizei height, GLint depth,
 477                         GLenum format, GLenum type, GLvoid *pixels,
 478                         struct gl_texture_image *texImage)
 479 {
 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,
 487                                         xoffset, yoffset, zoffset,
 488                                         width, height, 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          brw_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, xoffset, yoffset,
 503                                           width, height,
 504                                           format, type, pixels, &ctx->Pack);
 505
 506    if(ok)
 507       return;
 508
 509    _mesa_meta_GetTexSubImage(ctx, xoffset, yoffset, zoffset,
 510                              width, height, depth,
 511                              format, type, pixels, texImage);
 512
 513    DBG("%s - DONE\n", __func__);
 514 }
 515
 516 void
 517 intelInitTextureImageFuncs(struct dd_function_table *functions)
 518 {
 519    functions->TexImage = intelTexImage;
 520    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 521    functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
 522    functions->GetTexSubImage = intel_get_tex_sub_image;
 523 }