Example #1
0
static TemporaryRef<const webgl::LinkedProgramInfo>
QueryProgramInfo(WebGLProgram* prog, gl::GLContext* gl)
{
    RefPtr<webgl::LinkedProgramInfo> info(new webgl::LinkedProgramInfo(prog));

    GLuint maxAttribLenWithNull = 0;
    gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_ATTRIBUTE_MAX_LENGTH,
                      (GLint*)&maxAttribLenWithNull);
    if (maxAttribLenWithNull < 1)
        maxAttribLenWithNull = 1;

    GLuint maxUniformLenWithNull = 0;
    gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_UNIFORM_MAX_LENGTH,
                      (GLint*)&maxUniformLenWithNull);
    if (maxUniformLenWithNull < 1)
        maxUniformLenWithNull = 1;

#ifdef DUMP_SHADERVAR_MAPPINGS
    printf_stderr("maxAttribLenWithNull: %d\n", maxAttribLenWithNull);
    printf_stderr("maxUniformLenWithNull: %d\n", maxUniformLenWithNull);
#endif

    // Attribs

    GLuint numActiveAttribs = 0;
    gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_ATTRIBUTES,
                      (GLint*)&numActiveAttribs);

    for (GLuint i = 0; i < numActiveAttribs; i++) {
        nsAutoCString mappedName;
        mappedName.SetLength(maxAttribLenWithNull - 1);

        GLsizei lengthWithoutNull = 0;
        GLint elemCount = 0; // `size`
        GLenum elemType = 0; // `type`
        gl->fGetActiveAttrib(prog->mGLName, i, mappedName.Length()+1, &lengthWithoutNull,
                             &elemCount, &elemType, mappedName.BeginWriting());

        mappedName.SetLength(lengthWithoutNull);

        // Collect ActiveInfos:

        // Attribs can't be arrays, so we can skip some of the mess we have in the Uniform
        // path.
        nsDependentCString userName;
        if (!prog->FindAttribUserNameByMappedName(mappedName, &userName))
            userName.Rebind(mappedName, 0);

#ifdef DUMP_SHADERVAR_MAPPINGS
        printf_stderr("[attrib %i] %s/%s\n", i, mappedName.BeginReading(),
                      userName.BeginReading());
        printf_stderr("    lengthWithoutNull: %d\n", lengthWithoutNull);
#endif

        const bool isArray = false;
        AddActiveInfo(prog->Context(), elemCount, elemType, isArray, userName, mappedName,
                      &info->activeAttribs, &info->attribMap);

        // Collect active locations:
        GLint loc = gl->fGetAttribLocation(prog->mGLName, mappedName.BeginReading());
        if (loc == -1)
            MOZ_CRASH("Active attrib has no location.");

        info->activeAttribLocs.insert(loc);
    }

    // Uniforms

    const bool needsCheckForArrays = true;

    GLuint numActiveUniforms = 0;
    gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_UNIFORMS,
                      (GLint*)&numActiveUniforms);

    for (GLuint i = 0; i < numActiveUniforms; i++) {
        nsAutoCString mappedName;
        mappedName.SetLength(maxUniformLenWithNull - 1);

        GLsizei lengthWithoutNull = 0;
        GLint elemCount = 0; // `size`
        GLenum elemType = 0; // `type`
        gl->fGetActiveUniform(prog->mGLName, i, mappedName.Length()+1, &lengthWithoutNull,
                              &elemCount, &elemType, mappedName.BeginWriting());

        mappedName.SetLength(lengthWithoutNull);

        nsAutoCString baseMappedName;
        bool isArray;
        size_t arrayIndex;
        if (!ParseName(mappedName, &baseMappedName, &isArray, &arrayIndex))
            MOZ_CRASH("Failed to parse `mappedName` received from driver.");

        // Note that for good drivers, `isArray` should already be correct.
        // However, if FindUniform succeeds, it will be validator-guaranteed correct.

        nsAutoCString baseUserName;
        if (!prog->FindUniformByMappedName(baseMappedName, &baseUserName, &isArray)) {
            baseUserName = baseMappedName;

            if (needsCheckForArrays && !isArray) {
                // By GLES 3, GetUniformLocation("foo[0]") should return -1 if `foo` is
                // not an array. Our current linux Try slaves return the location of `foo`
                // anyways, though.
                std::string mappedName = baseMappedName.BeginReading();
                mappedName += "[0]";

                GLint loc = gl->fGetUniformLocation(prog->mGLName, mappedName.c_str());
                if (loc != -1)
                    isArray = true;
            }
        }

#ifdef DUMP_SHADERVAR_MAPPINGS
        printf_stderr("[uniform %i] %s/%i/%s/%s\n", i, mappedName.BeginReading(),
                      (int)isArray, baseMappedName.BeginReading(),
                      baseUserName.BeginReading());
        printf_stderr("    lengthWithoutNull: %d\n", lengthWithoutNull);
        printf_stderr("    isArray: %d\n", (int)isArray);
#endif

        AddActiveInfo(prog->Context(), elemCount, elemType, isArray, baseUserName,
                      baseMappedName, &info->activeUniforms, &info->uniformMap);
    }

    return info.forget();
}
TileClient
ClientTiledLayerBuffer::ValidateTile(TileClient aTile,
                                    const nsIntPoint& aTileOrigin,
                                    const nsIntRegion& aDirtyRegion)
{
  PROFILER_LABEL("ClientTiledLayerBuffer", "ValidateTile");

#ifdef GFX_TILEDLAYER_PREF_WARNINGS
  if (aDirtyRegion.IsComplex()) {
    printf_stderr("Complex region\n");
  }
#endif

  if (aTile.IsPlaceholderTile()) {
    aTile.SetLayerManager(mManager);
  }

  // Discard our front and backbuffers if our contents changed. In this case
  // the calling code will already have taken care of invalidating the entire
  // layer.
  if (HasFormatChanged()) {
    aTile.DiscardBackBuffer();
    aTile.DiscardFrontBuffer();
  }

  bool createdTextureClient = false;
  nsIntRegion offsetDirtyRegion = aDirtyRegion.MovedBy(-aTileOrigin);
  bool usingSinglePaintBuffer = !!mSinglePaintDrawTarget;
  RefPtr<TextureClient> backBuffer =
    aTile.GetBackBuffer(offsetDirtyRegion,
                        mManager->GetTexturePool(gfxPlatform::GetPlatform()->Optimal2DFormatForContent(GetContentType())),
                        &createdTextureClient, !usingSinglePaintBuffer);

  if (!backBuffer->Lock(OPEN_READ_WRITE)) {
    NS_WARNING("Failed to lock tile TextureClient for updating.");
    aTile.DiscardFrontBuffer();
    return aTile;
  }

  // We must not keep a reference to the DrawTarget after it has been unlocked,
  // make sure these are null'd before unlocking as destruction of the context
  // may cause the target to be flushed.
  RefPtr<DrawTarget> drawTarget = backBuffer->AsTextureClientDrawTarget()->GetAsDrawTarget();
  drawTarget->SetTransform(Matrix());

  RefPtr<gfxContext> ctxt = new gfxContext(drawTarget);

  if (usingSinglePaintBuffer) {
    // XXX Perhaps we should just copy the bounding rectangle here?
    RefPtr<gfx::SourceSurface> source = mSinglePaintDrawTarget->Snapshot();
    nsIntRegionRectIterator it(aDirtyRegion);
    for (const nsIntRect* dirtyRect = it.Next(); dirtyRect != nullptr; dirtyRect = it.Next()) {
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
      printf_stderr(" break into subdirtyRect %i, %i, %i, %i\n",
                    dirtyRect->x, dirtyRect->y, dirtyRect->width, dirtyRect->height);
#endif
      gfx::Rect drawRect(dirtyRect->x - aTileOrigin.x,
                         dirtyRect->y - aTileOrigin.y,
                         dirtyRect->width,
                         dirtyRect->height);
      drawRect.Scale(mResolution);

      gfx::IntRect copyRect(NS_roundf((dirtyRect->x - mSinglePaintBufferOffset.x) * mResolution),
                            NS_roundf((dirtyRect->y - mSinglePaintBufferOffset.y) * mResolution),
                            drawRect.width,
                            drawRect.height);
      gfx::IntPoint copyTarget(NS_roundf(drawRect.x), NS_roundf(drawRect.y));
      drawTarget->CopySurface(source, copyRect, copyTarget);

      // Mark the newly updated area as invalid in the front buffer
      aTile.mInvalidFront.Or(aTile.mInvalidFront, nsIntRect(copyTarget.x, copyTarget.y, copyRect.width, copyRect.height));
    }

    // The new buffer is now validated, remove the dirty region from it.
    aTile.mInvalidBack.Sub(nsIntRect(0, 0, TILEDLAYERBUFFER_TILE_SIZE, TILEDLAYERBUFFER_TILE_SIZE),
                           offsetDirtyRegion);
  } else {
    // Area of the full tile...
    nsIntRegion tileRegion = nsIntRect(aTileOrigin.x, aTileOrigin.y, TILEDLAYERBUFFER_TILE_SIZE, TILEDLAYERBUFFER_TILE_SIZE);

    // Intersect this area with the portion that's dirty.
    tileRegion = tileRegion.Intersect(aDirtyRegion);

    // Move invalid areas into layer space.
    aTile.mInvalidFront.MoveBy(aTileOrigin);
    aTile.mInvalidBack.MoveBy(aTileOrigin);

    // Add the area that's going to be redrawn to the invalid area of the
    // front region.
    aTile.mInvalidFront.Or(aTile.mInvalidFront, tileRegion);

    // Add invalid areas of the backbuffer to the area to redraw.
    tileRegion.Or(tileRegion, aTile.mInvalidBack);

    // Move invalid areas back into tile space.
    aTile.mInvalidFront.MoveBy(-aTileOrigin);

    // This will be validated now.
    aTile.mInvalidBack.SetEmpty();

    nsIntRect bounds = tileRegion.GetBounds();
    bounds.ScaleRoundOut(mResolution, mResolution);
    bounds.MoveBy(-aTileOrigin);

    if (GetContentType() != gfxContentType::COLOR) {
      drawTarget->ClearRect(Rect(bounds.x, bounds.y, bounds.width, bounds.height));
    }

    ctxt->NewPath();
    ctxt->Clip(gfxRect(bounds.x, bounds.y, bounds.width, bounds.height));
    ctxt->Scale(mResolution, mResolution);
    ctxt->Translate(gfxPoint(-aTileOrigin.x, -aTileOrigin.y));
    mCallback(mThebesLayer, ctxt,
              tileRegion.GetBounds(),
              DrawRegionClip::CLIP_NONE,
              nsIntRegion(), mCallbackData);

  }

#ifdef GFX_TILEDLAYER_DEBUG_OVERLAY
  DrawDebugOverlay(drawTarget, aTileOrigin.x * mResolution,
                   aTileOrigin.y * mResolution, GetTileLength(), GetTileLength());
#endif

  ctxt = nullptr;
  drawTarget = nullptr;

  backBuffer->Unlock();

  aTile.Flip();

  if (createdTextureClient) {
    if (!mCompositableClient->AddTextureClient(backBuffer)) {
      NS_WARNING("Failed to add tile TextureClient.");
      aTile.DiscardFrontBuffer();
      aTile.DiscardBackBuffer();
      return aTile;
    }
  }

  // Note, we don't call UpdatedTexture. The Updated function is called manually
  // by the TiledContentHost before composition.

  if (backBuffer->HasInternalBuffer()) {
    // If our new buffer has an internal buffer, we don't want to keep another
    // TextureClient around unnecessarily, so discard the back-buffer.
    aTile.DiscardBackBuffer();
  }

  return aTile;
}
Example #3
0
void renderTraceEventEnd(const char *aComment, const char *aColor) {
  printf_stderr("%s RENDERTRACE %u fillrect #%s 0 0 0 0\n",
    aComment, (int)PR_IntervalNow(), aColor);
}
static NTSTATUS NTAPI
patched_LdrLoadDll (PWCHAR filePath, PULONG flags, PUNICODE_STRING moduleFileName, PHANDLE handle)
{
  // We have UCS2 (UTF16?), we want ASCII, but we also just want the filename portion
#define DLLNAME_MAX 128
  char dllName[DLLNAME_MAX+1];
  wchar_t *dll_part;
  DllBlockInfo *info;

  int len = moduleFileName->Length / 2;
  wchar_t *fname = moduleFileName->Buffer;

  // The filename isn't guaranteed to be null terminated, but in practice
  // it always will be; ensure that this is so, and bail if not.
  // This is done instead of the more robust approach because of bug 527122,
  // where lots of weird things were happening when we tried to make a copy.
  if (moduleFileName->MaximumLength < moduleFileName->Length+2 ||
      fname[len] != 0)
  {
#ifdef DEBUG
    printf_stderr("LdrLoadDll: non-null terminated string found!\n");
#endif
    goto continue_loading;
  }

  dll_part = wcsrchr(fname, L'\\');
  if (dll_part) {
    dll_part = dll_part + 1;
    len -= dll_part - fname;
  } else {
    dll_part = fname;
  }

#ifdef DEBUG_very_verbose
  printf_stderr("LdrLoadDll: dll_part '%S' %d\n", dll_part, len);
#endif

  // if it's too long, then, we assume we won't want to block it,
  // since DLLNAME_MAX should be at least long enough to hold the longest
  // entry in our blocklist.
  if (len > DLLNAME_MAX) {
#ifdef DEBUG
    printf_stderr("LdrLoadDll: len too long! %d\n", len);
#endif
    goto continue_loading;
  }

  // copy over to our char byte buffer, lowercasing ASCII as we go
  for (int i = 0; i < len; i++) {
    wchar_t c = dll_part[i];

    if (c > 0x7f) {
      // welp, it's not ascii; if we need to add non-ascii things to
      // our blocklist, we'll have to remove this limitation.
      goto continue_loading;
    }

    // ensure that dll name is all lowercase
    if (c >= 'A' && c <= 'Z')
      c += 'a' - 'A';

    dllName[i] = (char) c;
  }

  dllName[len] = 0;

#ifdef DEBUG_very_verbose
  printf_stderr("LdrLoadDll: dll name '%s'\n", dllName);
#endif

  // then compare to everything on the blocklist
  info = &sWindowsDllBlocklist[0];
  while (info->name) {
    if (strcmp(info->name, dllName) == 0)
      break;

    info++;
  }

  if (info->name) {
    bool load_ok = false;

#ifdef DEBUG_very_verbose
    printf_stderr("LdrLoadDll: info->name: '%s'\n", info->name);
#endif

    if (info->maxVersion != ALL_VERSIONS) {
      // figure out the length of the string that we need
      DWORD pathlen = SearchPathW(filePath, fname, L".dll", 0, NULL, NULL);
      if (pathlen == 0) {
        // uh, we couldn't find the DLL at all, so...
        printf_stderr("LdrLoadDll: Blocking load of '%s' (SearchPathW didn't find it?)\n", dllName);
        return STATUS_DLL_NOT_FOUND;
      }

      wchar_t *full_fname = (wchar_t*) malloc(sizeof(wchar_t)*(pathlen+1));
      if (!full_fname) {
        // couldn't allocate memory?
        return STATUS_DLL_NOT_FOUND;
      }

      // now actually grab it
      SearchPathW(filePath, fname, L".dll", pathlen+1, full_fname, NULL);

      DWORD zero;
      DWORD infoSize = GetFileVersionInfoSizeW(full_fname, &zero);

      // If we failed to get the version information, we block.

      if (infoSize != 0) {
        nsAutoArrayPtr<unsigned char> infoData(new unsigned char[infoSize]);
        VS_FIXEDFILEINFO *vInfo;
        UINT vInfoLen;

        if (GetFileVersionInfoW(full_fname, 0, infoSize, infoData) &&
            VerQueryValueW(infoData, L"\\", (LPVOID*) &vInfo, &vInfoLen))
        {
          unsigned long long fVersion =
            ((unsigned long long)vInfo->dwFileVersionMS) << 32 |
            ((unsigned long long)vInfo->dwFileVersionLS);

          // finally do the version check, and if it's greater than our block
          // version, keep loading
          if (fVersion > info->maxVersion)
            load_ok = true;
        }
      }

      free(full_fname);
    }

    if (!load_ok) {
      printf_stderr("LdrLoadDll: Blocking load of '%s' -- see http://www.mozilla.com/en-US/blocklist/\n", dllName);
      return STATUS_DLL_NOT_FOUND;
    }
  }

continue_loading:
#ifdef DEBUG_very_verbose
  printf_stderr("LdrLoadDll: continuing load... ('%S')\n", moduleFileName->Buffer);
#endif

  NS_SetHasLoadedNewDLLs();

  return stub_LdrLoadDll(filePath, flags, moduleFileName, handle);
}
void
ClientTiledLayerBuffer::PaintThebes(const nsIntRegion& aNewValidRegion,
                                   const nsIntRegion& aPaintRegion,
                                   LayerManager::DrawThebesLayerCallback aCallback,
                                   void* aCallbackData)
{
  mCallback = aCallback;
  mCallbackData = aCallbackData;

#ifdef GFX_TILEDLAYER_PREF_WARNINGS
  long start = PR_IntervalNow();
#endif

  // If this region is empty XMost() - 1 will give us a negative value.
  NS_ASSERTION(!aPaintRegion.GetBounds().IsEmpty(), "Empty paint region\n");

  bool useSinglePaintBuffer = UseSinglePaintBuffer();
  // XXX The single-tile case doesn't work at the moment, see bug 850396
  /*
  if (useSinglePaintBuffer) {
    // Check if the paint only spans a single tile. If that's
    // the case there's no point in using a single paint buffer.
    nsIntRect paintBounds = aPaintRegion.GetBounds();
    useSinglePaintBuffer = GetTileStart(paintBounds.x) !=
                           GetTileStart(paintBounds.XMost() - 1) ||
                           GetTileStart(paintBounds.y) !=
                           GetTileStart(paintBounds.YMost() - 1);
  }
  */

  if (useSinglePaintBuffer) {
    nsRefPtr<gfxContext> ctxt;

    const nsIntRect bounds = aPaintRegion.GetBounds();
    {
      PROFILER_LABEL("ClientTiledLayerBuffer", "PaintThebesSingleBufferAlloc");
      gfxImageFormat format =
        gfxPlatform::GetPlatform()->OptimalFormatForContent(
          GetContentType());

      mSinglePaintDrawTarget =
        gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
          gfx::IntSize(ceilf(bounds.width * mResolution),
                       ceilf(bounds.height * mResolution)),
          gfx::ImageFormatToSurfaceFormat(format));

      ctxt = new gfxContext(mSinglePaintDrawTarget);

      mSinglePaintBufferOffset = nsIntPoint(bounds.x, bounds.y);
    }
    ctxt->NewPath();
    ctxt->Scale(mResolution, mResolution);
    ctxt->Translate(gfxPoint(-bounds.x, -bounds.y));
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
    if (PR_IntervalNow() - start > 3) {
      printf_stderr("Slow alloc %i\n", PR_IntervalNow() - start);
    }
    start = PR_IntervalNow();
#endif
    PROFILER_LABEL("ClientTiledLayerBuffer", "PaintThebesSingleBufferDraw");

    mCallback(mThebesLayer, ctxt, aPaintRegion, DrawRegionClip::CLIP_NONE, nsIntRegion(), mCallbackData);
  }

#ifdef GFX_TILEDLAYER_PREF_WARNINGS
  if (PR_IntervalNow() - start > 30) {
    const nsIntRect bounds = aPaintRegion.GetBounds();
    printf_stderr("Time to draw %i: %i, %i, %i, %i\n", PR_IntervalNow() - start, bounds.x, bounds.y, bounds.width, bounds.height);
    if (aPaintRegion.IsComplex()) {
      printf_stderr("Complex region\n");
      nsIntRegionRectIterator it(aPaintRegion);
      for (const nsIntRect* rect = it.Next(); rect != nullptr; rect = it.Next()) {
        printf_stderr(" rect %i, %i, %i, %i\n", rect->x, rect->y, rect->width, rect->height);
      }
    }
  }
  start = PR_IntervalNow();
#endif

  PROFILER_LABEL("ClientTiledLayerBuffer", "PaintThebesUpdate");
  Update(aNewValidRegion, aPaintRegion);

#ifdef GFX_TILEDLAYER_PREF_WARNINGS
  if (PR_IntervalNow() - start > 10) {
    const nsIntRect bounds = aPaintRegion.GetBounds();
    printf_stderr("Time to tile %i: %i, %i, %i, %i\n", PR_IntervalNow() - start, bounds.x, bounds.y, bounds.width, bounds.height);
  }
#endif

  mLastPaintOpaque = mThebesLayer->CanUseOpaqueSurface();
  mCallback = nullptr;
  mCallbackData = nullptr;
  mSinglePaintDrawTarget = nullptr;
}
Example #6
0
bool
ShadowLayersParent::RecvUpdate(const InfallibleTArray<Edit>& cset,
                               const TargetConfig& targetConfig,
                               const bool& isFirstPaint,
                               InfallibleTArray<EditReply>* reply)
{
#ifdef COMPOSITOR_PERFORMANCE_WARNING
  TimeStamp updateStart = TimeStamp::Now();
#endif

  MOZ_LAYERS_LOG(("[ParentSide] received txn with %d edits", cset.Length()));

  if (mDestroyed || !layer_manager() || layer_manager()->IsDestroyed()) {
    return true;
  }

  EditReplyVector replyv;

  layer_manager()->BeginTransactionWithTarget(NULL);

  for (EditArray::index_type i = 0; i < cset.Length(); ++i) {
    const Edit& edit = cset[i];

    switch (edit.type()) {
    // Create* ops
    case Edit::TOpCreateThebesLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateThebesLayer"));

      nsRefPtr<ShadowThebesLayer> layer =
        layer_manager()->CreateShadowThebesLayer();
      AsShadowLayer(edit.get_OpCreateThebesLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateContainerLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateContainerLayer"));

      nsRefPtr<ContainerLayer> layer = layer_manager()->CreateShadowContainerLayer();
      AsShadowLayer(edit.get_OpCreateContainerLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateImageLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateImageLayer"));

      nsRefPtr<ShadowImageLayer> layer =
        layer_manager()->CreateShadowImageLayer();
      AsShadowLayer(edit.get_OpCreateImageLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateColorLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateColorLayer"));

      nsRefPtr<ShadowColorLayer> layer = layer_manager()->CreateShadowColorLayer();
      AsShadowLayer(edit.get_OpCreateColorLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateCanvasLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateCanvasLayer"));

      nsRefPtr<ShadowCanvasLayer> layer =
        layer_manager()->CreateShadowCanvasLayer();
      AsShadowLayer(edit.get_OpCreateCanvasLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateRefLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateRefLayer"));

      nsRefPtr<ShadowRefLayer> layer =
        layer_manager()->CreateShadowRefLayer();
      AsShadowLayer(edit.get_OpCreateRefLayer())->Bind(layer);
      break;
    }

      // Attributes
    case Edit::TOpSetLayerAttributes: {
      MOZ_LAYERS_LOG(("[ParentSide] SetLayerAttributes"));

      const OpSetLayerAttributes& osla = edit.get_OpSetLayerAttributes();
      Layer* layer = AsShadowLayer(osla)->AsLayer();
      const LayerAttributes& attrs = osla.attrs();

      const CommonLayerAttributes& common = attrs.common();
      layer->SetVisibleRegion(common.visibleRegion());
      layer->SetContentFlags(common.contentFlags());
      layer->SetOpacity(common.opacity());
      layer->SetClipRect(common.useClipRect() ? &common.clipRect() : NULL);
      layer->SetBaseTransform(common.transform().value());
      layer->SetPostScale(common.postXScale(), common.postYScale());
      layer->SetIsFixedPosition(common.isFixedPosition());
      layer->SetFixedPositionAnchor(common.fixedPositionAnchor());
      layer->SetFixedPositionMargins(common.fixedPositionMargin());
      if (PLayerParent* maskLayer = common.maskLayerParent()) {
        layer->SetMaskLayer(cast(maskLayer)->AsLayer());
      } else {
        layer->SetMaskLayer(NULL);
      }
      layer->SetAnimations(common.animations());

      typedef SpecificLayerAttributes Specific;
      const SpecificLayerAttributes& specific = attrs.specific();
      switch (specific.type()) {
      case Specific::Tnull_t:
        break;

      case Specific::TThebesLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   thebes layer"));

        ShadowThebesLayer* thebesLayer =
          static_cast<ShadowThebesLayer*>(layer);
        const ThebesLayerAttributes& attrs =
          specific.get_ThebesLayerAttributes();

        thebesLayer->SetValidRegion(attrs.validRegion());

        break;
      }
      case Specific::TContainerLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   container layer"));

        ContainerLayer* containerLayer =
          static_cast<ContainerLayer*>(layer);
        const ContainerLayerAttributes& attrs =
          specific.get_ContainerLayerAttributes();
        containerLayer->SetFrameMetrics(attrs.metrics());
        containerLayer->SetPreScale(attrs.preXScale(), attrs.preYScale());
        containerLayer->SetInheritedScale(attrs.inheritedXScale(), attrs.inheritedYScale());
        break;
      }
      case Specific::TColorLayerAttributes:
        MOZ_LAYERS_LOG(("[ParentSide]   color layer"));

        static_cast<ColorLayer*>(layer)->SetColor(
          specific.get_ColorLayerAttributes().color().value());
        break;

      case Specific::TCanvasLayerAttributes:
        MOZ_LAYERS_LOG(("[ParentSide]   canvas layer"));

        static_cast<CanvasLayer*>(layer)->SetFilter(
          specific.get_CanvasLayerAttributes().filter());
        static_cast<ShadowCanvasLayer*>(layer)->SetBounds(
          specific.get_CanvasLayerAttributes().bounds());
        break;

      case Specific::TRefLayerAttributes:
        MOZ_LAYERS_LOG(("[ParentSide]   ref layer"));

        static_cast<RefLayer*>(layer)->SetReferentId(
          specific.get_RefLayerAttributes().id());
        break;

      case Specific::TImageLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   image layer"));

        ImageLayer* imageLayer = static_cast<ImageLayer*>(layer);
        const ImageLayerAttributes& attrs = specific.get_ImageLayerAttributes();
        imageLayer->SetFilter(attrs.filter());
        break;
      }
      default:
        NS_RUNTIMEABORT("not reached");
      }
      break;
    }
    // Tree ops
    case Edit::TOpSetRoot: {
      MOZ_LAYERS_LOG(("[ParentSide] SetRoot"));

      mRoot = AsShadowLayer(edit.get_OpSetRoot())->AsContainer();
      break;
    }
    case Edit::TOpInsertAfter: {
      MOZ_LAYERS_LOG(("[ParentSide] InsertAfter"));

      const OpInsertAfter& oia = edit.get_OpInsertAfter();
      ShadowContainer(oia)->AsContainer()->InsertAfter(
        ShadowChild(oia)->AsLayer(), ShadowAfter(oia)->AsLayer());
      break;
    }
    case Edit::TOpAppendChild: {
      MOZ_LAYERS_LOG(("[ParentSide] AppendChild"));

      const OpAppendChild& oac = edit.get_OpAppendChild();
      ShadowContainer(oac)->AsContainer()->InsertAfter(
        ShadowChild(oac)->AsLayer(), NULL);
      break;
    }
    case Edit::TOpRemoveChild: {
      MOZ_LAYERS_LOG(("[ParentSide] RemoveChild"));

      const OpRemoveChild& orc = edit.get_OpRemoveChild();
      Layer* childLayer = ShadowChild(orc)->AsLayer();
      ShadowContainer(orc)->AsContainer()->RemoveChild(childLayer);
      break;
    }
    case Edit::TOpRepositionChild: {
      MOZ_LAYERS_LOG(("[ParentSide] RepositionChild"));

      const OpRepositionChild& orc = edit.get_OpRepositionChild();
      ShadowContainer(orc)->AsContainer()->RepositionChild(
        ShadowChild(orc)->AsLayer(), ShadowAfter(orc)->AsLayer());
      break;
    }
    case Edit::TOpRaiseToTopChild: {
      MOZ_LAYERS_LOG(("[ParentSide] RaiseToTopChild"));

      const OpRaiseToTopChild& rtc = edit.get_OpRaiseToTopChild();
      ShadowContainer(rtc)->AsContainer()->RepositionChild(
        ShadowChild(rtc)->AsLayer(), NULL);
      break;
    }
    case Edit::TCompositableOperation: {
      ReceiveCompositableUpdate(edit.get_CompositableOperation(),
                                replyv);
      break;
    }
    case Edit::TOpAttachCompositable: {
      const OpAttachCompositable& op = edit.get_OpAttachCompositable();
      Attach(cast(op.layerParent()), cast(op.compositableParent()));
      break;
    }
    case Edit::TOpAttachAsyncCompositable: {
      const OpAttachAsyncCompositable& op = edit.get_OpAttachAsyncCompositable();
      CompositableParent* compositableParent = CompositableMap::Get(op.containerID());
      MOZ_ASSERT(compositableParent, "CompositableParent not found in the map");
      Attach(cast(op.layerParent()), compositableParent);
      compositableParent->SetCompositorID(mLayerManager->GetCompositor()->GetCompositorID());
      break;
    }
    case Edit::TOpPaintTiledLayerBuffer: {
      MOZ_LAYERS_LOG(("[ParentSide] Paint TiledLayerBuffer"));
      const OpPaintTiledLayerBuffer& op = edit.get_OpPaintTiledLayerBuffer();
      ShadowLayerParent* shadow = AsShadowLayer(op);

      LayerComposite* compositeLayer = shadow->AsLayer()->AsLayerComposite();
      compositeLayer->EnsureBuffer(BUFFER_TILED);
      TiledLayerComposer* tileComposer = compositeLayer->AsTiledLayerComposer();

      NS_ASSERTION(tileComposer, "compositeLayer is not a tile composer");

      BasicTiledLayerBuffer* p = reinterpret_cast<BasicTiledLayerBuffer*>(op.tiledLayerBuffer());
      tileComposer->PaintedTiledLayerBuffer(p);
      break;
    }
    default:
      NS_RUNTIMEABORT("not reached");
    }
  }

  layer_manager()->EndTransaction(NULL, NULL, LayerManager::END_NO_IMMEDIATE_REDRAW);

  if (reply) {
    reply->SetCapacity(replyv.size());
    if (replyv.size() > 0) {
      reply->AppendElements(&replyv.front(), replyv.size());
    }
  }

  // Ensure that any pending operations involving back and front
  // buffers have completed, so that neither process stomps on the
  // other's buffer contents.
  ShadowLayerManager::PlatformSyncBeforeReplyUpdate();

  mShadowLayersManager->ShadowLayersUpdated(this, targetConfig, isFirstPaint);

#ifdef COMPOSITOR_PERFORMANCE_WARNING
  int compositeTime = (int)(mozilla::TimeStamp::Now() - updateStart).ToMilliseconds();
  if (compositeTime > 15) {
    printf_stderr("Compositor: Layers update took %i ms (blocking gecko).\n", compositeTime);
  }
#endif

  return true;
}
Example #7
0
static already_AddRefed<const webgl::LinkedProgramInfo>
QueryProgramInfo(WebGLProgram* prog, gl::GLContext* gl)
{
    WebGLContext* const webgl = prog->mContext;

    RefPtr<webgl::LinkedProgramInfo> info(new webgl::LinkedProgramInfo(prog));

    GLuint maxAttribLenWithNull = 0;
    gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_ATTRIBUTE_MAX_LENGTH,
                      (GLint*)&maxAttribLenWithNull);
    if (maxAttribLenWithNull < 1)
        maxAttribLenWithNull = 1;

    GLuint maxUniformLenWithNull = 0;
    gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_UNIFORM_MAX_LENGTH,
                      (GLint*)&maxUniformLenWithNull);
    if (maxUniformLenWithNull < 1)
        maxUniformLenWithNull = 1;

    GLuint maxUniformBlockLenWithNull = 0;
    if (gl->IsSupported(gl::GLFeature::uniform_buffer_object)) {
        gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH,
                          (GLint*)&maxUniformBlockLenWithNull);
        if (maxUniformBlockLenWithNull < 1)
            maxUniformBlockLenWithNull = 1;
    }

    GLuint maxTransformFeedbackVaryingLenWithNull = 0;
    if (gl->IsSupported(gl::GLFeature::transform_feedback2)) {
        gl->fGetProgramiv(prog->mGLName, LOCAL_GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH,
                          (GLint*)&maxTransformFeedbackVaryingLenWithNull);
        if (maxTransformFeedbackVaryingLenWithNull < 1)
            maxTransformFeedbackVaryingLenWithNull = 1;
    }


#ifdef DUMP_SHADERVAR_MAPPINGS
    printf_stderr("maxAttribLenWithNull: %d\n", maxAttribLenWithNull);
    printf_stderr("maxUniformLenWithNull: %d\n", maxUniformLenWithNull);
    printf_stderr("maxUniformBlockLenWithNull: %d\n", maxUniformBlockLenWithNull);
#endif

    // Attribs

    GLuint numActiveAttribs = 0;
    gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_ATTRIBUTES,
                      (GLint*)&numActiveAttribs);

    for (GLuint i = 0; i < numActiveAttribs; i++) {
        nsAutoCString mappedName;
        mappedName.SetLength(maxAttribLenWithNull - 1);

        GLsizei lengthWithoutNull = 0;
        GLint elemCount = 0; // `size`
        GLenum elemType = 0; // `type`
        gl->fGetActiveAttrib(prog->mGLName, i, mappedName.Length()+1, &lengthWithoutNull,
                             &elemCount, &elemType, mappedName.BeginWriting());
        GLenum error = gl->fGetError();
        if (error != LOCAL_GL_NO_ERROR) {
            gfxCriticalNote << "Failed to do glGetActiveAttrib: " << error;
        }

        mappedName.SetLength(lengthWithoutNull);

        // Attribs can't be arrays, so we can skip some of the mess we have in the Uniform
        // path.
        nsDependentCString userName;
        if (!prog->FindAttribUserNameByMappedName(mappedName, &userName))
            userName.Rebind(mappedName, 0);

        ///////

        const GLint loc = gl->fGetAttribLocation(prog->mGLName,
                                                 mappedName.BeginReading());
        if (loc == -1) {
            MOZ_ASSERT(mappedName == "gl_InstanceID",
                       "Active attrib should have a location.");
            continue;
        }

#ifdef DUMP_SHADERVAR_MAPPINGS
        printf_stderr("[attrib %i: %i] %s/%s\n", i, loc, mappedName.BeginReading(),
                      userName.BeginReading());
        printf_stderr("    lengthWithoutNull: %d\n", lengthWithoutNull);
#endif

        ///////

        const bool isArray = false;
        const RefPtr<WebGLActiveInfo> activeInfo = new WebGLActiveInfo(webgl, elemCount,
                                                                       elemType, isArray,
                                                                       userName,
                                                                       mappedName);
        const webgl::AttribInfo attrib = {activeInfo, uint32_t(loc)};
        info->attribs.push_back(attrib);
    }

    // Uniforms

    const bool needsCheckForArrays = gl->WorkAroundDriverBugs();

    GLuint numActiveUniforms = 0;
    gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_UNIFORMS,
                      (GLint*)&numActiveUniforms);

    for (GLuint i = 0; i < numActiveUniforms; i++) {
        nsAutoCString mappedName;
        mappedName.SetLength(maxUniformLenWithNull - 1);

        GLsizei lengthWithoutNull = 0;
        GLint elemCount = 0; // `size`
        GLenum elemType = 0; // `type`
        gl->fGetActiveUniform(prog->mGLName, i, mappedName.Length()+1, &lengthWithoutNull,
                              &elemCount, &elemType, mappedName.BeginWriting());

        mappedName.SetLength(lengthWithoutNull);

        ///////

        nsAutoCString baseMappedName;
        bool isArray;
        size_t arrayIndex;
        if (!ParseName(mappedName, &baseMappedName, &isArray, &arrayIndex))
            MOZ_CRASH("GFX: Failed to parse `mappedName` received from driver.");

        // Note that for good drivers, `isArray` should already be correct.
        // However, if FindUniform succeeds, it will be validator-guaranteed correct.

        ///////

        nsAutoCString baseUserName;
        if (!prog->FindUniformByMappedName(baseMappedName, &baseUserName, &isArray)) {
            // Validator likely missing.
            baseUserName = baseMappedName;

            if (needsCheckForArrays && !isArray) {
                // By GLES 3, GetUniformLocation("foo[0]") should return -1 if `foo` is
                // not an array. Our current linux Try slaves return the location of `foo`
                // anyways, though.
                std::string mappedNameStr = baseMappedName.BeginReading();
                mappedNameStr += "[0]";

                GLint loc = gl->fGetUniformLocation(prog->mGLName, mappedNameStr.c_str());
                if (loc != -1)
                    isArray = true;
            }
        }

        ///////

#ifdef DUMP_SHADERVAR_MAPPINGS
        printf_stderr("[uniform %i] %s/%i/%s/%s\n", i, mappedName.BeginReading(),
                      (int)isArray, baseMappedName.BeginReading(),
                      baseUserName.BeginReading());
        printf_stderr("    lengthWithoutNull: %d\n", lengthWithoutNull);
        printf_stderr("    isArray: %d\n", (int)isArray);
#endif

        ///////

        const RefPtr<WebGLActiveInfo> activeInfo = new WebGLActiveInfo(webgl, elemCount,
                                                                       elemType, isArray,
                                                                       baseUserName,
                                                                       baseMappedName);

        auto* uniform = new webgl::UniformInfo(activeInfo);
        info->uniforms.push_back(uniform);

        if (uniform->mSamplerTexList) {
            info->uniformSamplers.push_back(uniform);
        }
    }

    // Uniform Blocks
    // (no sampler types allowed!)

    if (gl->IsSupported(gl::GLFeature::uniform_buffer_object)) {
        GLuint numActiveUniformBlocks = 0;
        gl->fGetProgramiv(prog->mGLName, LOCAL_GL_ACTIVE_UNIFORM_BLOCKS,
                          (GLint*)&numActiveUniformBlocks);

        for (GLuint i = 0; i < numActiveUniformBlocks; i++) {
            nsAutoCString mappedName;
            mappedName.SetLength(maxUniformBlockLenWithNull - 1);

            GLint lengthWithoutNull;
            gl->fGetActiveUniformBlockiv(prog->mGLName, i, LOCAL_GL_UNIFORM_BLOCK_NAME_LENGTH, &lengthWithoutNull);
            gl->fGetActiveUniformBlockName(prog->mGLName, i, maxUniformBlockLenWithNull, &lengthWithoutNull, mappedName.BeginWriting());
            mappedName.SetLength(lengthWithoutNull);

            nsAutoCString baseMappedName;
            bool isArray;
            size_t arrayIndex;
            if (!ParseName(mappedName, &baseMappedName, &isArray, &arrayIndex))
                MOZ_CRASH("GFX: Failed to parse `mappedName` received from driver.");

            nsAutoCString baseUserName;
            if (!prog->FindUniformBlockByMappedName(baseMappedName, &baseUserName,
                                                    &isArray))
            {
                baseUserName = baseMappedName;

                if (needsCheckForArrays && !isArray) {
                    std::string mappedNameStr = baseMappedName.BeginReading();
                    mappedNameStr += "[0]";

                    GLuint loc = gl->fGetUniformBlockIndex(prog->mGLName,
                                                           mappedNameStr.c_str());
                    if (loc != LOCAL_GL_INVALID_INDEX)
                        isArray = true;
                }
            }

            ////

            GLuint dataSize = 0;
            gl->fGetActiveUniformBlockiv(prog->mGLName, i,
                                         LOCAL_GL_UNIFORM_BLOCK_DATA_SIZE,
                                         (GLint*)&dataSize);

#ifdef DUMP_SHADERVAR_MAPPINGS
            printf_stderr("[uniform block %i] %s/%i/%s/%s\n", i,
                          mappedName.BeginReading(), (int)isArray,
                          baseMappedName.BeginReading(), baseUserName.BeginReading());
            printf_stderr("    lengthWithoutNull: %d\n", lengthWithoutNull);
            printf_stderr("    isArray: %d\n", (int)isArray);
#endif

            auto* block = new webgl::UniformBlockInfo(webgl, baseUserName, baseMappedName,
                                                      dataSize);
            info->uniformBlocks.push_back(block);
        }
    }

    // Transform feedback varyings

    if (gl->IsSupported(gl::GLFeature::transform_feedback2)) {
        GLuint numTransformFeedbackVaryings = 0;
        gl->fGetProgramiv(prog->mGLName, LOCAL_GL_TRANSFORM_FEEDBACK_VARYINGS,
                          (GLint*)&numTransformFeedbackVaryings);

        for (GLuint i = 0; i < numTransformFeedbackVaryings; i++) {
            nsAutoCString mappedName;
            mappedName.SetLength(maxTransformFeedbackVaryingLenWithNull - 1);

            GLint lengthWithoutNull;
            GLsizei elemCount;
            GLenum elemType;
            gl->fGetTransformFeedbackVarying(prog->mGLName, i,
                                             maxTransformFeedbackVaryingLenWithNull,
                                             &lengthWithoutNull, &elemCount, &elemType,
                                             mappedName.BeginWriting());
            mappedName.SetLength(lengthWithoutNull);

            ////

            nsAutoCString baseMappedName;
            bool isArray;
            size_t arrayIndex;
            if (!ParseName(mappedName, &baseMappedName, &isArray, &arrayIndex))
                MOZ_CRASH("GFX: Failed to parse `mappedName` received from driver.");


            nsAutoCString baseUserName;
            if (!prog->FindVaryingByMappedName(mappedName, &baseUserName, &isArray)) {
                baseUserName = baseMappedName;

                if (needsCheckForArrays && !isArray) {
                    std::string mappedNameStr = baseMappedName.BeginReading();
                    mappedNameStr += "[0]";

                    GLuint loc = gl->fGetUniformBlockIndex(prog->mGLName,
                                                           mappedNameStr.c_str());
                    if (loc != LOCAL_GL_INVALID_INDEX)
                        isArray = true;
                }
            }

            ////

            const RefPtr<WebGLActiveInfo> activeInfo = new WebGLActiveInfo(webgl,
                                                                           elemCount,
                                                                           elemType,
                                                                           isArray,
                                                                           baseUserName,
                                                                           mappedName);
            info->transformFeedbackVaryings.push_back(activeInfo);
        }
    }

    // Frag outputs

    prog->EnumerateFragOutputs(info->fragDataMap);

    return info.forget();
}
void
LayerManagerComposite::Render(const nsIntRegion& aInvalidRegion)
{
  PROFILER_LABEL("LayerManagerComposite", "Render",
    js::ProfileEntry::Category::GRAPHICS);

  if (mDestroyed) {
    NS_WARNING("Call on destroyed layer manager");
    return;
  }

  // At this time, it doesn't really matter if these preferences change
  // during the execution of the function; we should be safe in all
  // permutations. However, may as well just get the values onces and
  // then use them, just in case the consistency becomes important in
  // the future.
  bool invertVal = gfxPrefs::LayersEffectInvert();
  bool grayscaleVal = gfxPrefs::LayersEffectGrayscale();
  float contrastVal = gfxPrefs::LayersEffectContrast();
  bool haveLayerEffects = (invertVal || grayscaleVal || contrastVal != 0.0);

  // Set LayerScope begin/end frame
  LayerScopeAutoFrame frame(PR_Now());

  // Dump to console
  if (gfxPrefs::LayersDump()) {
    this->Dump();
  } else if (profiler_feature_active("layersdump")) {
    std::stringstream ss;
    Dump(ss);
    profiler_log(ss.str().c_str());
  }

  // Dump to LayerScope Viewer
  if (LayerScope::CheckSendable()) {
    // Create a LayersPacket, dump Layers into it and transfer the
    // packet('s ownership) to LayerScope.
    auto packet = MakeUnique<layerscope::Packet>();
    layerscope::LayersPacket* layersPacket = packet->mutable_layers();
    this->Dump(layersPacket);
    LayerScope::SendLayerDump(Move(packet));
  }

  /** Our more efficient but less powerful alter ego, if one is available. */
  RefPtr<Composer2D> composer2D;
  composer2D = mCompositor->GetWidget()->GetComposer2D();

  // We can't use composert2D if we have layer effects
  if (!mTarget && !haveLayerEffects &&
      gfxPrefs::Composer2DCompositionEnabled() &&
      composer2D && composer2D->HasHwc() && composer2D->TryRenderWithHwc(mRoot,
          mCompositor->GetWidget(), mGeometryChanged))
  {
    LayerScope::SetHWComposed();
    if (mFPS) {
      double fps = mFPS->mCompositionFps.AddFrameAndGetFps(TimeStamp::Now());
      if (gfxPrefs::LayersDrawFPS()) {
        printf_stderr("HWComposer: FPS is %g\n", fps);
      }
    }
    mCompositor->EndFrameForExternalComposition(Matrix());
    mLastFrameMissedHWC = false;
    return;
  } else if (!mTarget && !haveLayerEffects) {
    mLastFrameMissedHWC = !!composer2D;
  }

  {
    PROFILER_LABEL("LayerManagerComposite", "PreRender",
      js::ProfileEntry::Category::GRAPHICS);

    if (!mCompositor->GetWidget()->PreRender(this)) {
      return;
    }
  }

  ParentLayerIntRect clipRect;
  Rect bounds(mRenderBounds.x, mRenderBounds.y, mRenderBounds.width, mRenderBounds.height);
  Rect actualBounds;

  CompositorBench(mCompositor, bounds);

  if (mRoot->GetClipRect()) {
    clipRect = *mRoot->GetClipRect();
    Rect rect(clipRect.x, clipRect.y, clipRect.width, clipRect.height);
    mCompositor->BeginFrame(aInvalidRegion, &rect, bounds, nullptr, &actualBounds);
  } else {
    gfx::Rect rect;
    mCompositor->BeginFrame(aInvalidRegion, nullptr, bounds, &rect, &actualBounds);
    clipRect = ParentLayerIntRect(rect.x, rect.y, rect.width, rect.height);
  }

  if (actualBounds.IsEmpty()) {
    mCompositor->GetWidget()->PostRender(this);
    return;
  }

  // Allow widget to render a custom background.
  mCompositor->GetWidget()->DrawWindowUnderlay(this, IntRect(actualBounds.x,
                                                               actualBounds.y,
                                                               actualBounds.width,
                                                               actualBounds.height));

  RefPtr<CompositingRenderTarget> previousTarget;
  if (haveLayerEffects) {
    previousTarget = PushGroupForLayerEffects();
  } else {
    mTwoPassTmpTarget = nullptr;
  }

  // Render our layers.
  RootLayer()->Prepare(ViewAs<RenderTargetPixel>(clipRect, PixelCastJustification::RenderTargetIsParentLayerForRoot));
  RootLayer()->RenderLayer(clipRect.ToUnknownRect());

  if (!mRegionToClear.IsEmpty()) {
    nsIntRegionRectIterator iter(mRegionToClear);
    const IntRect *r;
    while ((r = iter.Next())) {
      mCompositor->ClearRect(Rect(r->x, r->y, r->width, r->height));
    }
  }

  if (mTwoPassTmpTarget) {
    MOZ_ASSERT(haveLayerEffects);
    PopGroupForLayerEffects(previousTarget, clipRect.ToUnknownRect(),
                            grayscaleVal, invertVal, contrastVal);
  }

  // Allow widget to render a custom foreground.
  mCompositor->GetWidget()->DrawWindowOverlay(
    this, LayoutDeviceIntRect(actualBounds.x, actualBounds.y,
                              actualBounds.width, actualBounds.height));

  // Debugging
  RenderDebugOverlay(actualBounds);

  {
    PROFILER_LABEL("LayerManagerComposite", "EndFrame",
      js::ProfileEntry::Category::GRAPHICS);

    mCompositor->EndFrame();
    mCompositor->SetDispAcquireFence(mRoot,
                                     mCompositor->GetWidget()); // Call after EndFrame()
  }

  if (composer2D) {
    composer2D->Render(mCompositor->GetWidget());
  }

  mCompositor->GetWidget()->PostRender(this);

  RecordFrame();
}
bool
LayerTransactionParent::RecvUpdate(const InfallibleTArray<Edit>& cset,
                                   const uint64_t& aTransactionId,
                                   const TargetConfig& targetConfig,
                                   const bool& isFirstPaint,
                                   const bool& scheduleComposite,
                                   const uint32_t& paintSequenceNumber,
                                   InfallibleTArray<EditReply>* reply)
{
  profiler_tracing("Paint", "Composite", TRACING_INTERVAL_START);
  PROFILER_LABEL("LayerTransactionParent", "RecvUpdate",
    js::ProfileEntry::Category::GRAPHICS);

#ifdef COMPOSITOR_PERFORMANCE_WARNING
  TimeStamp updateStart = TimeStamp::Now();
#endif

  MOZ_LAYERS_LOG(("[ParentSide] received txn with %d edits", cset.Length()));

  if (mDestroyed || !layer_manager() || layer_manager()->IsDestroyed()) {
    return true;
  }

  if (mLayerManager && mLayerManager->GetCompositor() &&
      !targetConfig.naturalBounds().IsEmpty()) {
    mLayerManager->GetCompositor()->SetScreenRotation(targetConfig.rotation());
  }

  EditReplyVector replyv;

  {
    AutoResolveRefLayers resolve(mShadowLayersManager->GetCompositionManager(this));
    layer_manager()->BeginTransaction();
  }

  for (EditArray::index_type i = 0; i < cset.Length(); ++i) {
    const Edit& edit = cset[i];

    switch (edit.type()) {
    // Create* ops
    case Edit::TOpCreateThebesLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateThebesLayer"));

      nsRefPtr<ThebesLayerComposite> layer =
        layer_manager()->CreateThebesLayerComposite();
      AsLayerComposite(edit.get_OpCreateThebesLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateContainerLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateContainerLayer"));

      nsRefPtr<ContainerLayer> layer = layer_manager()->CreateContainerLayerComposite();
      AsLayerComposite(edit.get_OpCreateContainerLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateImageLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateImageLayer"));

      nsRefPtr<ImageLayerComposite> layer =
        layer_manager()->CreateImageLayerComposite();
      AsLayerComposite(edit.get_OpCreateImageLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateColorLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateColorLayer"));

      nsRefPtr<ColorLayerComposite> layer = layer_manager()->CreateColorLayerComposite();
      AsLayerComposite(edit.get_OpCreateColorLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateCanvasLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateCanvasLayer"));

      nsRefPtr<CanvasLayerComposite> layer =
        layer_manager()->CreateCanvasLayerComposite();
      AsLayerComposite(edit.get_OpCreateCanvasLayer())->Bind(layer);
      break;
    }
    case Edit::TOpCreateRefLayer: {
      MOZ_LAYERS_LOG(("[ParentSide] CreateRefLayer"));

      nsRefPtr<RefLayerComposite> layer =
        layer_manager()->CreateRefLayerComposite();
      AsLayerComposite(edit.get_OpCreateRefLayer())->Bind(layer);
      break;
    }

    // Attributes
    case Edit::TOpSetLayerAttributes: {
      MOZ_LAYERS_LOG(("[ParentSide] SetLayerAttributes"));

      const OpSetLayerAttributes& osla = edit.get_OpSetLayerAttributes();
      ShadowLayerParent* layerParent = AsLayerComposite(osla);
      Layer* layer = layerParent->AsLayer();
      if (!layer) {
        return false;
      }
      const LayerAttributes& attrs = osla.attrs();

      const CommonLayerAttributes& common = attrs.common();
      layer->SetVisibleRegion(common.visibleRegion());
      layer->SetEventRegions(common.eventRegions());
      layer->SetContentFlags(common.contentFlags());
      layer->SetOpacity(common.opacity());
      layer->SetClipRect(common.useClipRect() ? &common.clipRect() : nullptr);
      layer->SetBaseTransform(common.transform().value());
      layer->SetPostScale(common.postXScale(), common.postYScale());
      layer->SetIsFixedPosition(common.isFixedPosition());
      layer->SetFixedPositionAnchor(common.fixedPositionAnchor());
      layer->SetFixedPositionMargins(common.fixedPositionMargin());
      if (common.isStickyPosition()) {
        layer->SetStickyPositionData(common.stickyScrollContainerId(),
                                     common.stickyScrollRangeOuter(),
                                     common.stickyScrollRangeInner());
      }
      layer->SetScrollbarData(common.scrollbarTargetContainerId(),
        static_cast<Layer::ScrollDirection>(common.scrollbarDirection()));
      layer->SetMixBlendMode((gfx::CompositionOp)common.mixBlendMode());
      layer->SetForceIsolatedGroup(common.forceIsolatedGroup());
      if (PLayerParent* maskLayer = common.maskLayerParent()) {
        layer->SetMaskLayer(cast(maskLayer)->AsLayer());
      } else {
        layer->SetMaskLayer(nullptr);
      }
      layer->SetAnimations(common.animations());
      layer->SetInvalidRegion(common.invalidRegion());

      typedef SpecificLayerAttributes Specific;
      const SpecificLayerAttributes& specific = attrs.specific();
      switch (specific.type()) {
      case Specific::Tnull_t:
        break;

      case Specific::TThebesLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   thebes layer"));

        ThebesLayerComposite* thebesLayer = layerParent->AsThebesLayerComposite();
        if (!thebesLayer) {
          return false;
        }
        const ThebesLayerAttributes& attrs =
          specific.get_ThebesLayerAttributes();

        thebesLayer->SetValidRegion(attrs.validRegion());

        break;
      }
      case Specific::TContainerLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   container layer"));

        ContainerLayerComposite* containerLayer = layerParent->AsContainerLayerComposite();
        if (!containerLayer) {
          return false;
        }
        const ContainerLayerAttributes& attrs =
          specific.get_ContainerLayerAttributes();
        containerLayer->SetFrameMetrics(attrs.metrics());
        containerLayer->SetScrollHandoffParentId(attrs.scrollParentId());
        containerLayer->SetPreScale(attrs.preXScale(), attrs.preYScale());
        containerLayer->SetInheritedScale(attrs.inheritedXScale(), attrs.inheritedYScale());
        containerLayer->SetBackgroundColor(attrs.backgroundColor().value());
        break;
      }
      case Specific::TColorLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   color layer"));

        ColorLayerComposite* colorLayer = layerParent->AsColorLayerComposite();
        if (!colorLayer) {
          return false;
        }
        colorLayer->SetColor(specific.get_ColorLayerAttributes().color().value());
        colorLayer->SetBounds(specific.get_ColorLayerAttributes().bounds());
        break;
      }
      case Specific::TCanvasLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   canvas layer"));

        CanvasLayerComposite* canvasLayer = layerParent->AsCanvasLayerComposite();
        if (!canvasLayer) {
          return false;
        }
        canvasLayer->SetFilter(specific.get_CanvasLayerAttributes().filter());
        canvasLayer->SetBounds(specific.get_CanvasLayerAttributes().bounds());
        break;
      }
      case Specific::TRefLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   ref layer"));

        RefLayerComposite* refLayer = layerParent->AsRefLayerComposite();
        if (!refLayer) {
          return false;
        }
        refLayer->SetReferentId(specific.get_RefLayerAttributes().id());
        break;
      }
      case Specific::TImageLayerAttributes: {
        MOZ_LAYERS_LOG(("[ParentSide]   image layer"));

        ImageLayerComposite* imageLayer = layerParent->AsImageLayerComposite();
        if (!imageLayer) {
          return false;
        }
        const ImageLayerAttributes& attrs = specific.get_ImageLayerAttributes();
        imageLayer->SetFilter(attrs.filter());
        imageLayer->SetScaleToSize(attrs.scaleToSize(), attrs.scaleMode());
        break;
      }
      default:
        NS_RUNTIMEABORT("not reached");
      }
      break;
    }
    case Edit::TOpSetDiagnosticTypes: {
      mLayerManager->GetCompositor()->SetDiagnosticTypes(
        edit.get_OpSetDiagnosticTypes().diagnostics());
      break;
    }
    // Tree ops
    case Edit::TOpSetRoot: {
      MOZ_LAYERS_LOG(("[ParentSide] SetRoot"));

      Layer* newRoot = AsLayerComposite(edit.get_OpSetRoot())->AsLayer();
      if (!newRoot) {
        return false;
      }
      if (newRoot->GetParent()) {
        // newRoot is not a root!
        return false;
      }
      mRoot = newRoot;
      break;
    }
    case Edit::TOpInsertAfter: {
      MOZ_LAYERS_LOG(("[ParentSide] InsertAfter"));

      const OpInsertAfter& oia = edit.get_OpInsertAfter();
      Layer* child = ShadowChild(oia)->AsLayer();
      if (!child) {
        return false;
      }
      ContainerLayerComposite* container = ShadowContainer(oia)->AsContainerLayerComposite();
      if (!container ||
          !container->InsertAfter(child, ShadowAfter(oia)->AsLayer()))
      {
        return false;
      }
      break;
    }
    case Edit::TOpPrependChild: {
      MOZ_LAYERS_LOG(("[ParentSide] PrependChild"));

      const OpPrependChild& oac = edit.get_OpPrependChild();
      Layer* child = ShadowChild(oac)->AsLayer();
      if (!child) {
        return false;
      }
      ContainerLayerComposite* container = ShadowContainer(oac)->AsContainerLayerComposite();
      if (!container ||
          !container->InsertAfter(child, nullptr))
      {
        return false;
      }
      break;
    }
    case Edit::TOpRemoveChild: {
      MOZ_LAYERS_LOG(("[ParentSide] RemoveChild"));

      const OpRemoveChild& orc = edit.get_OpRemoveChild();
      Layer* childLayer = ShadowChild(orc)->AsLayer();
      if (!childLayer) {
        return false;
      }
      ContainerLayerComposite* container = ShadowContainer(orc)->AsContainerLayerComposite();
      if (!container ||
          !container->RemoveChild(childLayer))
      {
        return false;
      }
      break;
    }
    case Edit::TOpRepositionChild: {
      MOZ_LAYERS_LOG(("[ParentSide] RepositionChild"));

      const OpRepositionChild& orc = edit.get_OpRepositionChild();
      Layer* child = ShadowChild(orc)->AsLayer();
      if (!child) {
        return false;
      }
      ContainerLayerComposite* container = ShadowContainer(orc)->AsContainerLayerComposite();
      if (!container ||
          !container->RepositionChild(child, ShadowAfter(orc)->AsLayer()))
      {
        return false;
      }
      break;
    }
    case Edit::TOpRaiseToTopChild: {
      MOZ_LAYERS_LOG(("[ParentSide] RaiseToTopChild"));

      const OpRaiseToTopChild& rtc = edit.get_OpRaiseToTopChild();
      Layer* child = ShadowChild(rtc)->AsLayer();
      if (!child) {
        return false;
      }
      ContainerLayerComposite* container = ShadowContainer(rtc)->AsContainerLayerComposite();
      if (!container ||
          !container->RepositionChild(child, nullptr))
      {
        return false;
      }
      break;
    }
    case Edit::TCompositableOperation: {
      if (!ReceiveCompositableUpdate(edit.get_CompositableOperation(),
                                replyv)) {
        return false;
      }
      break;
    }
    case Edit::TOpAttachCompositable: {
      const OpAttachCompositable& op = edit.get_OpAttachCompositable();
      CompositableHost* host = CompositableHost::FromIPDLActor(op.compositableParent());
      if (!Attach(cast(op.layerParent()), host, false)) {
        return false;
      }
      host->SetCompositorID(mLayerManager->GetCompositor()->GetCompositorID());
      break;
    }
    case Edit::TOpAttachAsyncCompositable: {
      const OpAttachAsyncCompositable& op = edit.get_OpAttachAsyncCompositable();
      PCompositableParent* compositableParent = CompositableMap::Get(op.containerID());
      if (!compositableParent) {
        NS_ERROR("CompositableParent not found in the map");
        return false;
      }
      CompositableHost* host = CompositableHost::FromIPDLActor(compositableParent);
      if (!Attach(cast(op.layerParent()), host, true)) {
        return false;
      }

      host->SetCompositorID(mLayerManager->GetCompositor()->GetCompositorID());
      break;
    }
    default:
      NS_RUNTIMEABORT("not reached");
    }
  }

  mShadowLayersManager->ShadowLayersUpdated(this, aTransactionId, targetConfig,
                                            isFirstPaint, scheduleComposite, paintSequenceNumber);

  {
    AutoResolveRefLayers resolve(mShadowLayersManager->GetCompositionManager(this));
    layer_manager()->EndTransaction(nullptr, nullptr, LayerManager::END_NO_IMMEDIATE_REDRAW);
  }

  if (reply) {
    reply->SetCapacity(replyv.size());
    if (replyv.size() > 0) {
      reply->AppendElements(&replyv.front(), replyv.size());
    }
  }

  if (!IsSameProcess()) {
    // Ensure that any pending operations involving back and front
    // buffers have completed, so that neither process stomps on the
    // other's buffer contents.
    LayerManagerComposite::PlatformSyncBeforeReplyUpdate();
  }

#ifdef COMPOSITOR_PERFORMANCE_WARNING
  int compositeTime = (int)(mozilla::TimeStamp::Now() - updateStart).ToMilliseconds();
  if (compositeTime > 15) {
    printf_stderr("Compositor: Layers update took %i ms (blocking gecko).\n", compositeTime);
  }
#endif

  return true;
}
Example #10
0
bool
GLLibraryEGL::EnsureInitialized(bool forceAccel)
{
    if (mInitialized) {
        return true;
    }

    mozilla::ScopedGfxFeatureReporter reporter("EGL");

#ifdef MOZ_B2G
    if (!sCurrentContext.init())
      MOZ_CRASH("GFX: Tls init failed");
#endif

#ifdef XP_WIN
    if (!mEGLLibrary) {
        // On Windows, the GLESv2, EGL and DXSDK libraries are shipped with libxul and
        // we should look for them there. We have to load the libs in this
        // order, because libEGL.dll depends on libGLESv2.dll which depends on the DXSDK
        // libraries. This matters especially for WebRT apps which are in a different directory.
        // See bug 760323 and bug 749459

        // Also note that we intentionally leak the libs we load.

        do {
            // Windows 8.1 has d3dcompiler_47.dll in the system directory.
            // Try it first. Note that _46 will never be in the system
            // directory and we ship with at least _43. So there is no point
            // trying _46 and _43 in the system directory.

            if (LoadLibrarySystem32(L"d3dcompiler_47.dll"))
                break;

#ifdef MOZ_D3DCOMPILER_VISTA_DLL
            if (LoadLibraryForEGLOnWindows(NS_LITERAL_STRING(NS_STRINGIFY(MOZ_D3DCOMPILER_VISTA_DLL))))
                break;
#endif

#ifdef MOZ_D3DCOMPILER_XP_DLL
            if (LoadLibraryForEGLOnWindows(NS_LITERAL_STRING(NS_STRINGIFY(MOZ_D3DCOMPILER_XP_DLL))))
                break;
#endif

            MOZ_ASSERT(false, "d3dcompiler DLL loading failed.");
        } while (false);

        LoadLibraryForEGLOnWindows(NS_LITERAL_STRING("libGLESv2.dll"));

        mEGLLibrary = LoadLibraryForEGLOnWindows(NS_LITERAL_STRING("libEGL.dll"));

        if (!mEGLLibrary)
            return false;
    }

#else // !Windows

    // On non-Windows (Android) we use system copies of libEGL. We look for
    // the APITrace lib, libEGL.so, and libEGL.so.1 in that order.

#if defined(ANDROID)
    if (!mEGLLibrary)
        mEGLLibrary = LoadApitraceLibrary();
#endif

    if (!mEGLLibrary) {
        printf_stderr("Attempting load of libEGL.so\n");
        mEGLLibrary = PR_LoadLibrary("libEGL.so");
    }
#if defined(XP_UNIX)
    if (!mEGLLibrary) {
        mEGLLibrary = PR_LoadLibrary("libEGL.so.1");
    }
#endif

    if (!mEGLLibrary) {
        NS_WARNING("Couldn't load EGL LIB.");
        return false;
    }

#endif // !Windows

#define SYMBOL(name) \
{ (PRFuncPtr*) &mSymbols.f##name, { "egl" #name, nullptr } }

    GLLibraryLoader::SymLoadStruct earlySymbols[] = {
        SYMBOL(GetDisplay),
        SYMBOL(Terminate),
        SYMBOL(GetCurrentSurface),
        SYMBOL(GetCurrentContext),
        SYMBOL(MakeCurrent),
        SYMBOL(DestroyContext),
        SYMBOL(CreateContext),
        SYMBOL(DestroySurface),
        SYMBOL(CreateWindowSurface),
        SYMBOL(CreatePbufferSurface),
        SYMBOL(CreatePixmapSurface),
        SYMBOL(BindAPI),
        SYMBOL(Initialize),
        SYMBOL(ChooseConfig),
        SYMBOL(GetError),
        SYMBOL(GetConfigs),
        SYMBOL(GetConfigAttrib),
        SYMBOL(WaitNative),
        SYMBOL(GetProcAddress),
        SYMBOL(SwapBuffers),
        SYMBOL(CopyBuffers),
        SYMBOL(QueryString),
        SYMBOL(QueryContext),
        SYMBOL(BindTexImage),
        SYMBOL(ReleaseTexImage),
        SYMBOL(QuerySurface),
        { nullptr, { nullptr } }
    };

    if (!GLLibraryLoader::LoadSymbols(mEGLLibrary, &earlySymbols[0])) {
        NS_WARNING("Couldn't find required entry points in EGL library (early init)");
        return false;
    }

    GLLibraryLoader::SymLoadStruct optionalSymbols[] = {
        // On Android 4.3 and up, certain features like ANDROID_native_fence_sync
        // can only be queried by using a special eglQueryString.
        { (PRFuncPtr*) &mSymbols.fQueryStringImplementationANDROID,
          { "_Z35eglQueryStringImplementationANDROIDPvi", nullptr } },
        { nullptr, { nullptr } }
    };

    // Do not warn about the failure to load this - see bug 1092191
    Unused << GLLibraryLoader::LoadSymbols(mEGLLibrary, &optionalSymbols[0],
                                           nullptr, nullptr, false);

#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 18
    MOZ_RELEASE_ASSERT(mSymbols.fQueryStringImplementationANDROID,
                       "Couldn't find eglQueryStringImplementationANDROID");
#endif

    InitClientExtensions();

    const auto lookupFunction =
        (GLLibraryLoader::PlatformLookupFunction)mSymbols.fGetProcAddress;

    // Client exts are ready. (But not display exts!)
    if (IsExtensionSupported(ANGLE_platform_angle_d3d)) {
        GLLibraryLoader::SymLoadStruct d3dSymbols[] = {
            { (PRFuncPtr*)&mSymbols.fGetPlatformDisplayEXT, { "eglGetPlatformDisplayEXT", nullptr } },
            { nullptr, { nullptr } }
        };

        bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
                                                    &d3dSymbols[0],
                                                    lookupFunction);
        if (!success) {
            NS_ERROR("EGL supports ANGLE_platform_angle_d3d without exposing its functions!");

            MarkExtensionUnsupported(ANGLE_platform_angle_d3d);

            mSymbols.fGetPlatformDisplayEXT = nullptr;
        }
    }

    // Check the ANGLE support the system has
    nsCOMPtr<nsIGfxInfo> gfxInfo = do_GetService("@mozilla.org/gfx/info;1");
    mIsANGLE = IsExtensionSupported(ANGLE_platform_angle);

    EGLDisplay chosenDisplay = nullptr;

    if (IsExtensionSupported(ANGLE_platform_angle_d3d)) {
        bool accelAngleSupport = IsAccelAngleSupported(gfxInfo);

        bool shouldTryAccel = forceAccel || accelAngleSupport;
        bool shouldTryWARP = !shouldTryAccel;
        if (gfxPrefs::WebGLANGLEForceWARP()) {
            shouldTryWARP = true;
            shouldTryAccel = false;
        }

        // Fallback to a WARP display if non-WARP is blacklisted, or if WARP is forced.
        if (shouldTryWARP) {
            chosenDisplay = GetAndInitWARPDisplay(*this, EGL_DEFAULT_DISPLAY);
            if (chosenDisplay) {
                mIsWARP = true;
            }
        }

        if (!chosenDisplay) {
            // If falling back to WARP did not work and we don't want to try
            // using HW accelerated ANGLE, then fail.
            if (!shouldTryAccel) {
                NS_ERROR("Fallback WARP ANGLE context failed to initialize.");
                return false;
            }

            // Hardware accelerated ANGLE path
            chosenDisplay = GetAndInitDisplayForAccelANGLE(*this);
        }
    } else {
        chosenDisplay = GetAndInitDisplay(*this, EGL_DEFAULT_DISPLAY);
    }

    if (!chosenDisplay) {
        NS_WARNING("Failed to initialize a display.");
        return false;
    }
    mEGLDisplay = chosenDisplay;

    InitDisplayExtensions();

    ////////////////////////////////////
    // Alright, load display exts.

    if (IsExtensionSupported(KHR_lock_surface)) {
        GLLibraryLoader::SymLoadStruct lockSymbols[] = {
            { (PRFuncPtr*) &mSymbols.fLockSurface,   { "eglLockSurfaceKHR",   nullptr } },
            { (PRFuncPtr*) &mSymbols.fUnlockSurface, { "eglUnlockSurfaceKHR", nullptr } },
            { nullptr, { nullptr } }
        };

        bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
                                                    &lockSymbols[0],
                                                    lookupFunction);
        if (!success) {
            NS_ERROR("EGL supports KHR_lock_surface without exposing its functions!");

            MarkExtensionUnsupported(KHR_lock_surface);

            mSymbols.fLockSurface = nullptr;
            mSymbols.fUnlockSurface = nullptr;
        }
    }

    if (IsExtensionSupported(ANGLE_surface_d3d_texture_2d_share_handle)) {
        GLLibraryLoader::SymLoadStruct d3dSymbols[] = {
            { (PRFuncPtr*) &mSymbols.fQuerySurfacePointerANGLE, { "eglQuerySurfacePointerANGLE", nullptr } },
            { nullptr, { nullptr } }
        };

        bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
                                                    &d3dSymbols[0],
                                                    lookupFunction);
        if (!success) {
            NS_ERROR("EGL supports ANGLE_surface_d3d_texture_2d_share_handle without exposing its functions!");

            MarkExtensionUnsupported(ANGLE_surface_d3d_texture_2d_share_handle);

            mSymbols.fQuerySurfacePointerANGLE = nullptr;
        }
    }

    if (IsExtensionSupported(KHR_fence_sync)) {
        GLLibraryLoader::SymLoadStruct syncSymbols[] = {
            { (PRFuncPtr*) &mSymbols.fCreateSync,     { "eglCreateSyncKHR",     nullptr } },
            { (PRFuncPtr*) &mSymbols.fDestroySync,    { "eglDestroySyncKHR",    nullptr } },
            { (PRFuncPtr*) &mSymbols.fClientWaitSync, { "eglClientWaitSyncKHR", nullptr } },
            { (PRFuncPtr*) &mSymbols.fGetSyncAttrib,  { "eglGetSyncAttribKHR",  nullptr } },
            { nullptr, { nullptr } }
        };

        bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
                                                    &syncSymbols[0],
                                                    lookupFunction);
        if (!success) {
            NS_ERROR("EGL supports KHR_fence_sync without exposing its functions!");

            MarkExtensionUnsupported(KHR_fence_sync);

            mSymbols.fCreateSync = nullptr;
            mSymbols.fDestroySync = nullptr;
            mSymbols.fClientWaitSync = nullptr;
            mSymbols.fGetSyncAttrib = nullptr;
        }
    }

    if (IsExtensionSupported(KHR_image) || IsExtensionSupported(KHR_image_base)) {
        GLLibraryLoader::SymLoadStruct imageSymbols[] = {
            { (PRFuncPtr*) &mSymbols.fCreateImage,  { "eglCreateImageKHR",  nullptr } },
            { (PRFuncPtr*) &mSymbols.fDestroyImage, { "eglDestroyImageKHR", nullptr } },
            { nullptr, { nullptr } }
        };

        bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
                                                    &imageSymbols[0],
                                                    lookupFunction);
        if (!success) {
            NS_ERROR("EGL supports KHR_image(_base) without exposing its functions!");

            MarkExtensionUnsupported(KHR_image);
            MarkExtensionUnsupported(KHR_image_base);
            MarkExtensionUnsupported(KHR_image_pixmap);

            mSymbols.fCreateImage = nullptr;
            mSymbols.fDestroyImage = nullptr;
        }
    } else {
        MarkExtensionUnsupported(KHR_image_pixmap);
    }

    if (IsExtensionSupported(ANDROID_native_fence_sync)) {
        GLLibraryLoader::SymLoadStruct nativeFenceSymbols[] = {
            { (PRFuncPtr*) &mSymbols.fDupNativeFenceFDANDROID, { "eglDupNativeFenceFDANDROID", nullptr } },
            { nullptr, { nullptr } }
        };

        bool success = GLLibraryLoader::LoadSymbols(mEGLLibrary,
                                                    &nativeFenceSymbols[0],
                                                    lookupFunction);
        if (!success) {
            NS_ERROR("EGL supports ANDROID_native_fence_sync without exposing its functions!");

            MarkExtensionUnsupported(ANDROID_native_fence_sync);

            mSymbols.fDupNativeFenceFDANDROID = nullptr;
        }
    }

    mInitialized = true;
    reporter.SetSuccessful();
    return true;
}