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
  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", __FUNCTION__);
  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 }
  86
  87 /* XXX: Do this for TexSubImage also:
  88  */
  89 static bool
  90 try_pbo_upload(struct gl_context *ctx,
  91                struct gl_texture_image *image,
  92                const struct gl_pixelstore_attrib *unpack,
  93                GLenum format, GLenum type, const void *pixels)
  94 {
  95    struct intel_texture_image *intelImage = intel_texture_image(image);
  96    struct brw_context *brw = brw_context(ctx);
  97    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
  98    GLuint src_offset;
  99    drm_intel_bo *src_buffer;
 100
 101    if (!_mesa_is_bufferobj(unpack->BufferObj))
 102       return false;
 103
 104    DBG("trying pbo upload\n");
 105
 106    if (ctx->_ImageTransferState || unpack->SkipPixels || unpack->SkipRows) {
 107       DBG("%s: image transfer\n", __FUNCTION__);
 108       return false;
 109    }
 110
 111    ctx->Driver.AllocTextureImageBuffer(ctx, image);
 112
 113    if (!intelImage->mt) {
 114       DBG("%s: no miptree\n", __FUNCTION__);
 115       return false;
 116    }
 117
 118    if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
 119                                              format, type, false)) {
 120       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 121           __FUNCTION__, _mesa_get_format_name(intelImage->mt->format),
 122           format, type);
 123       return false;
 124    }
 125
 126    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
 127        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
 128       DBG("%s: no support for array textures\n", __FUNCTION__);
 129       return false;
 130    }
 131
 132    int src_stride =
 133       _mesa_image_row_stride(unpack, image->Width, format, type);
 134
 135    /* note: potential 64-bit ptr to 32-bit int cast */
 136    src_offset = (GLuint) (unsigned long) pixels;
 137    src_buffer = intel_bufferobj_buffer(brw, pbo,
 138                                        src_offset, src_stride * image->Height);
 139
 140    struct intel_mipmap_tree *pbo_mt =
 141       intel_miptree_create_for_bo(brw,
 142                                   src_buffer,
 143                                   intelImage->mt->format,
 144                                   src_offset,
 145                                   image->Width, image->Height,
 146                                   src_stride);
 147    if (!pbo_mt)
 148       return false;
 149
 150    if (!intel_miptree_blit(brw,
 151                            pbo_mt, 0, 0,
 152                            0, 0, false,
 153                            intelImage->mt, image->Level, image->Face,
 154                            0, 0, false,
 155                            image->Width, image->Height, GL_COPY)) {
 156       DBG("%s: blit failed\n", __FUNCTION__);
 157       intel_miptree_release(&pbo_mt);
 158       return false;
 159    }
 160
 161    intel_miptree_release(&pbo_mt);
 162
 163    DBG("%s: success\n", __FUNCTION__);
 164    return true;
 165 }
 166
 167 static void
 168 intelTexImage(struct gl_context * ctx,
 169               GLuint dims,
 170               struct gl_texture_image *texImage,
 171               GLenum format, GLenum type, const void *pixels,
 172               const struct gl_pixelstore_attrib *unpack)
 173 {
 174    bool ok;
 175
 176    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 177        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 178        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 179
 180    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 181                                        0, 0, 0, /*x,y,z offsets*/
 182                                        texImage->Width,
 183                                        texImage->Height,
 184                                        texImage->Depth,
 185                                        format, type, pixels, unpack,
 186                                        true /*for_glTexImage*/);
 187    if (ok)
 188       return;
 189
 190    /* Attempt to use the blitter for PBO image uploads.
 191     */
 192    if (dims <= 2 &&
 193        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 194       return;
 195    }
 196
 197    DBG("%s: upload image %dx%dx%d pixels %p\n",
 198        __FUNCTION__, texImage->Width, texImage->Height, texImage->Depth,
 199        pixels);
 200
 201    _mesa_store_teximage(ctx, dims, texImage,
 202                         format, type, pixels, unpack);
 203 }
 204
 205
 206 /**
 207  * Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
 208  *
 209  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 210  */
 211 static void
 212 intel_set_texture_image_bo(struct gl_context *ctx,
 213                            struct gl_texture_image *image,
 214                            drm_intel_bo *bo,
 215                            GLenum target,
 216                            GLenum internalFormat,
 217                            mesa_format format,
 218                            uint32_t offset,
 219                            GLuint width, GLuint height,
 220                            GLuint pitch,
 221                            GLuint tile_x, GLuint tile_y)
 222 {
 223    struct brw_context *brw = brw_context(ctx);
 224    struct intel_texture_image *intel_image = intel_texture_image(image);
 225    struct gl_texture_object *texobj = image->TexObject;
 226    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 227    uint32_t draw_x, draw_y;
 228
 229    _mesa_init_teximage_fields(&brw->ctx, image,
 230                               width, height, 1,
 231                               0, internalFormat, format);
 232
 233    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 234
 235    intel_image->mt = intel_miptree_create_for_bo(brw, bo, image->TexFormat,
 236                                                  0, width, height, pitch);
 237    if (intel_image->mt == NULL)
 238        return;
 239    intel_image->mt->target = target;
 240    intel_image->mt->total_width = width;
 241    intel_image->mt->total_height = height;
 242    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 243    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 244
 245    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 246
 247    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 248     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 249     * trouble resolving back to destination image due to alignment issues.
 250     */
 251    if (!brw->has_surface_tile_offset &&
 252        (draw_x != 0 || draw_y != 0)) {
 253       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 254       intel_miptree_release(&intel_image->mt);
 255       return;
 256    }
 257
 258    intel_texobj->needs_validate = true;
 259
 260    intel_image->mt->offset = offset;
 261    assert(pitch % intel_image->mt->cpp == 0);
 262    intel_image->base.RowStride = pitch / intel_image->mt->cpp;
 263
 264    /* Immediately validate the image to the object. */
 265    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 266 }
 267
 268 void
 269 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 270                    GLint texture_format,
 271                    __DRIdrawable *dPriv)
 272 {
 273    struct gl_framebuffer *fb = dPriv->driverPrivate;
 274    struct brw_context *brw = pDRICtx->driverPrivate;
 275    struct gl_context *ctx = &brw->ctx;
 276    struct intel_renderbuffer *rb;
 277    struct gl_texture_object *texObj;
 278    struct gl_texture_image *texImage;
 279    int level = 0, internalFormat = 0;
 280    mesa_format texFormat = MESA_FORMAT_NONE;
 281
 282    texObj = _mesa_get_current_tex_object(ctx, target);
 283
 284    if (!texObj)
 285       return;
 286
 287    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 288        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 289       intel_update_renderbuffers(pDRICtx, dPriv);
 290
 291    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 292    /* If the miptree isn't set, then intel_update_renderbuffers was unable
 293     * to get the BO for the drawable from the window system.
 294     */
 295    if (!rb || !rb->mt)
 296       return;
 297
 298    if (rb->mt->cpp == 4) {
 299       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 300          internalFormat = GL_RGB;
 301          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
 302       }
 303       else {
 304          internalFormat = GL_RGBA;
 305          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 306       }
 307    } else if (rb->mt->cpp == 2) {
 308       internalFormat = GL_RGB;
 309       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 310    }
 311
 312    _mesa_lock_texture(&brw->ctx, texObj);
 313    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 314    intel_miptree_make_shareable(brw, rb->mt);
 315    intel_set_texture_image_bo(ctx, texImage, rb->mt->bo, target,
 316                               internalFormat, texFormat, 0,
 317                               rb->Base.Base.Width,
 318                               rb->Base.Base.Height,
 319                               rb->mt->pitch,
 320                               0, 0);
 321    _mesa_unlock_texture(&brw->ctx, texObj);
 322 }
 323
 324 static GLboolean
 325 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
 326                                   struct gl_renderbuffer *rb,
 327                                   struct gl_texture_image *image)
 328 {
 329    struct intel_renderbuffer *irb = intel_renderbuffer(rb);
 330    struct intel_texture_image *intel_image = intel_texture_image(image);
 331    struct gl_texture_object *texobj = image->TexObject;
 332    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 333
 334    /* We can only handle RB allocated with AllocRenderbufferStorage, or
 335     * window-system renderbuffers.
 336     */
 337    assert(!rb->TexImage);
 338
 339    if (!irb->mt)
 340       return false;
 341
 342    _mesa_lock_texture(ctx, texobj);
 343    _mesa_init_teximage_fields(ctx, image,
 344                               rb->Width, rb->Height, 1,
 345                               0, rb->InternalFormat, rb->Format);
 346    image->NumSamples = rb->NumSamples;
 347
 348    intel_miptree_reference(&intel_image->mt, irb->mt);
 349
 350    /* Immediately validate the image to the object. */
 351    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 352
 353    intel_texobj->needs_validate = true;
 354    _mesa_unlock_texture(ctx, texobj);
 355
 356    return true;
 357 }
 358
 359 void
 360 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 361 {
 362    /* The old interface didn't have the format argument, so copy our
 363     * implementation's behavior at the time.
 364     */
 365    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 366 }
 367
 368 static void
 369 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 370                               struct gl_texture_object *texObj,
 371                               struct gl_texture_image *texImage,
 372                               GLeglImageOES image_handle)
 373 {
 374    struct brw_context *brw = brw_context(ctx);
 375    __DRIscreen *screen;
 376    __DRIimage *image;
 377
 378    screen = brw->intelScreen->driScrnPriv;
 379    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 380                                               screen->loaderPrivate);
 381    if (image == NULL)
 382       return;
 383
 384    /**
 385     * Images originating via EGL_EXT_image_dma_buf_import can be used only
 386     * with GL_OES_EGL_image_external only.
 387     */
 388    if (image->dma_buf_imported && target != GL_TEXTURE_EXTERNAL_OES) {
 389       _mesa_error(ctx, GL_INVALID_OPERATION,
 390             "glEGLImageTargetTexture2DOES(dma buffers can be used with "
 391                "GL_OES_EGL_image_external only");
 392       return;
 393    }
 394
 395    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 396       _mesa_error(ctx, GL_INVALID_OPERATION,
 397             "glEGLImageTargetTexture2DOES(external target is enabled only "
 398                "for images created with EGL_EXT_image_dma_buf_import");
 399       return;
 400    }
 401
 402    /* Disallow depth/stencil textures: we don't have a way to pass the
 403     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 404     */
 405    if (image->has_depthstencil) {
 406       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 407       return;
 408    }
 409
 410    intel_set_texture_image_bo(ctx, texImage, image->bo,
 411                               target, image->internal_format,
 412                               image->format, image->offset,
 413                               image->width,  image->height,
 414                               image->pitch,
 415                               image->tile_x, image->tile_y);
 416 }
 417
 418 static bool
 419 blit_texture_to_pbo(struct gl_context *ctx,
 420                     GLenum format, GLenum type,
 421                     GLvoid * pixels, struct gl_texture_image *texImage)
 422 {
 423    struct intel_texture_image *intelImage = intel_texture_image(texImage);
 424    struct brw_context *brw = brw_context(ctx);
 425    const struct gl_pixelstore_attrib *pack = &ctx->Pack;
 426    struct intel_buffer_object *dst = intel_buffer_object(pack->BufferObj);
 427    GLuint dst_offset;
 428    drm_intel_bo *dst_buffer;
 429    GLenum target = texImage->TexObject->Target;
 430
 431    /* Check if we can use GPU blit to copy from the hardware texture
 432     * format to the user's format/type.
 433     * Note that GL's pixel transfer ops don't apply to glGetTexImage()
 434     */
 435
 436    if (!_mesa_format_matches_format_and_type(intelImage->mt->format, format,
 437                                              type, false))
 438    {
 439       perf_debug("%s: unsupported format, fallback to CPU mapping for PBO\n",
 440                  __FUNCTION__);
 441
 442       return false;
 443    }
 444
 445    if (ctx->_ImageTransferState) {
 446       perf_debug("%s: bad transfer state, fallback to CPU mapping for PBO\n",
 447                  __FUNCTION__);
 448       return false;
 449    }
 450
 451    if (pack->SwapBytes || pack->LsbFirst) {
 452       perf_debug("%s: unsupported pack swap params\n",
 453                  __FUNCTION__);
 454       return false;
 455    }
 456
 457    if (target == GL_TEXTURE_1D_ARRAY ||
 458        target == GL_TEXTURE_2D_ARRAY ||
 459        target == GL_TEXTURE_CUBE_MAP_ARRAY ||
 460        target == GL_TEXTURE_3D) {
 461       perf_debug("%s: no support for multiple slices, fallback to CPU mapping "
 462                  "for PBO\n", __FUNCTION__);
 463       return false;
 464    }
 465
 466    int dst_stride = _mesa_image_row_stride(pack, texImage->Width, format, type);
 467    bool dst_flip = false;
 468    /* Mesa flips the dst_stride for ctx->Pack.Invert, our mt must have a
 469     * normal dst_stride.
 470     */
 471    struct gl_pixelstore_attrib uninverted_pack = *pack;
 472    if (ctx->Pack.Invert) {
 473       dst_stride = -dst_stride;
 474       dst_flip = true;
 475       uninverted_pack.Invert = false;
 476    }
 477    dst_offset = (GLintptr) pixels;
 478    dst_offset += _mesa_image_offset(2, &uninverted_pack, texImage->Width,
 479                                     texImage->Height, format, type, 0, 0, 0);
 480    dst_buffer = intel_bufferobj_buffer(brw, dst, dst_offset,
 481                                        texImage->Height * dst_stride);
 482
 483    struct intel_mipmap_tree *pbo_mt =
 484       intel_miptree_create_for_bo(brw,
 485                                   dst_buffer,
 486                                   intelImage->mt->format,
 487                                   dst_offset,
 488                                   texImage->Width, texImage->Height,
 489                                   dst_stride);
 490
 491    if (!pbo_mt)
 492       return false;
 493
 494    if (!intel_miptree_blit(brw,
 495                            intelImage->mt, texImage->Level, texImage->Face,
 496                            0, 0, false,
 497                            pbo_mt, 0, 0,
 498                            0, 0, dst_flip,
 499                            texImage->Width, texImage->Height, GL_COPY))
 500       return false;
 501
 502    intel_miptree_release(&pbo_mt);
 503
 504    return true;
 505 }
 506
 507 static void
 508 intel_get_tex_image(struct gl_context *ctx,
 509                     GLenum format, GLenum type, GLvoid *pixels,
 510                     struct gl_texture_image *texImage) {
 511    DBG("%s\n", __FUNCTION__);
 512
 513    if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
 514       /* Using PBOs, so try the BLT based path. */
 515       if (blit_texture_to_pbo(ctx, format, type, pixels, texImage))
 516          return;
 517
 518    }
 519
 520    _mesa_meta_GetTexImage(ctx, format, type, pixels, texImage);
 521
 522    DBG("%s - DONE\n", __FUNCTION__);
 523 }
 524
 525 void
 526 intelInitTextureImageFuncs(struct dd_function_table *functions)
 527 {
 528    functions->TexImage = intelTexImage;
 529    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 530    functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
 531    functions->GetTexImage = intel_get_tex_image;
 532 }