Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 313 insertions, 0 deletions

diff --git a/dom/canvas/ImageBitmapRenderingContext.cpp b/dom/canvas/ImageBitmapRenderingContext.cpp
new file mode 100644
index 0000000000..475a37f6a0
--- /dev/null
+++ b/dom/canvas/ImageBitmapRenderingContext.cpp
@@ -0,0 +1,313 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ImageBitmapRenderingContext.h"
+#include "mozilla/dom/ImageBitmapRenderingContextBinding.h"
+#include "nsComponentManagerUtils.h"
+#include "ImageContainer.h"
+#include "ImageLayers.h"
+
+namespace mozilla::dom {
+
+ImageBitmapRenderingContext::ImageBitmapRenderingContext()
+    : mWidth(0), mHeight(0), mIsCapturedFrameInvalid(false) {}
+
+ImageBitmapRenderingContext::~ImageBitmapRenderingContext() {
+  RemovePostRefreshObserver();
+}
+
+JSObject* ImageBitmapRenderingContext::WrapObject(
+    JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
+  return ImageBitmapRenderingContext_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+already_AddRefed<layers::Image>
+ImageBitmapRenderingContext::ClipToIntrinsicSize() {
+  if (!mImage) {
+    return nullptr;
+  }
+
+  // If image is larger than canvas intrinsic size, clip it to the intrinsic
+  // size.
+  RefPtr<gfx::SourceSurface> surface;
+  RefPtr<layers::Image> result;
+  if (mWidth < mImage->GetSize().width || mHeight < mImage->GetSize().height) {
+    surface = MatchWithIntrinsicSize();
+  } else {
+    surface = mImage->GetAsSourceSurface();
+  }
+  if (!surface) {
+    return nullptr;
+  }
+  result =
+      new layers::SourceSurfaceImage(gfx::IntSize(mWidth, mHeight), surface);
+  return result.forget();
+}
+
+void ImageBitmapRenderingContext::TransferImageBitmap(
+    ImageBitmap& aImageBitmap) {
+  TransferFromImageBitmap(aImageBitmap);
+}
+
+void ImageBitmapRenderingContext::TransferFromImageBitmap(
+    ImageBitmap& aImageBitmap) {
+  Reset();
+  mImage = aImageBitmap.TransferAsImage();
+
+  if (!mImage) {
+    return;
+  }
+
+  if (aImageBitmap.IsWriteOnly() && mCanvasElement) {
+    mCanvasElement->SetWriteOnly();
+  }
+
+  Redraw(gfxRect(0, 0, mWidth, mHeight));
+}
+
+NS_IMETHODIMP
+ImageBitmapRenderingContext::SetDimensions(int32_t aWidth, int32_t aHeight) {
+  mWidth = aWidth;
+  mHeight = aHeight;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+ImageBitmapRenderingContext::InitializeWithDrawTarget(
+    nsIDocShell* aDocShell, NotNull<gfx::DrawTarget*> aTarget) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+already_AddRefed<gfx::DataSourceSurface>
+ImageBitmapRenderingContext::MatchWithIntrinsicSize() {
+  RefPtr<gfx::SourceSurface> surface = mImage->GetAsSourceSurface();
+  RefPtr<gfx::DataSourceSurface> temp = gfx::Factory::CreateDataSourceSurface(
+      gfx::IntSize(mWidth, mHeight), surface->GetFormat());
+  if (!temp) {
+    return nullptr;
+  }
+
+  gfx::DataSourceSurface::ScopedMap map(temp,
+                                        gfx::DataSourceSurface::READ_WRITE);
+  if (!map.IsMapped()) {
+    return nullptr;
+  }
+
+  RefPtr<gfx::DrawTarget> dt = gfx::Factory::CreateDrawTargetForData(
+      gfxPlatform::GetPlatform()->GetSoftwareBackend(), map.GetData(),
+      temp->GetSize(), map.GetStride(), temp->GetFormat());
+  if (!dt || !dt->IsValid()) {
+    gfxWarning()
+        << "ImageBitmapRenderingContext::MatchWithIntrinsicSize failed";
+    return nullptr;
+  }
+
+  dt->ClearRect(gfx::Rect(0, 0, mWidth, mHeight));
+  dt->CopySurface(
+      surface,
+      gfx::IntRect(0, 0, surface->GetSize().width, surface->GetSize().height),
+      gfx::IntPoint(0, 0));
+
+  return temp.forget();
+}
+
+mozilla::UniquePtr<uint8_t[]> ImageBitmapRenderingContext::GetImageBuffer(
+    int32_t* aFormat) {
+  *aFormat = 0;
+
+  if (!mImage) {
+    return nullptr;
+  }
+
+  RefPtr<gfx::SourceSurface> surface = mImage->GetAsSourceSurface();
+  RefPtr<gfx::DataSourceSurface> data = surface->GetDataSurface();
+  if (!data) {
+    return nullptr;
+  }
+
+  if (data->GetSize() != gfx::IntSize(mWidth, mHeight)) {
+    data = MatchWithIntrinsicSize();
+    if (!data) {
+      return nullptr;
+    }
+  }
+
+  *aFormat = imgIEncoder::INPUT_FORMAT_HOSTARGB;
+  return gfx::SurfaceToPackedBGRA(data);
+}
+
+NS_IMETHODIMP
+ImageBitmapRenderingContext::GetInputStream(const char* aMimeType,
+                                            const nsAString& aEncoderOptions,
+                                            nsIInputStream** aStream) {
+  nsCString enccid("@mozilla.org/image/encoder;2?type=");
+  enccid += aMimeType;
+  nsCOMPtr<imgIEncoder> encoder = do_CreateInstance(enccid.get());
+  if (!encoder) {
+    return NS_ERROR_FAILURE;
+  }
+
+  int32_t format = 0;
+  UniquePtr<uint8_t[]> imageBuffer = GetImageBuffer(&format);
+  if (!imageBuffer) {
+    return NS_ERROR_FAILURE;
+  }
+
+  return ImageEncoder::GetInputStream(mWidth, mHeight, imageBuffer.get(),
+                                      format, encoder, aEncoderOptions,
+                                      aStream);
+}
+
+already_AddRefed<mozilla::gfx::SourceSurface>
+ImageBitmapRenderingContext::GetSurfaceSnapshot(
+    gfxAlphaType* const aOutAlphaType) {
+  if (!mImage) {
+    return nullptr;
+  }
+
+  if (aOutAlphaType) {
+    *aOutAlphaType =
+        (GetIsOpaque() ? gfxAlphaType::Opaque : gfxAlphaType::Premult);
+  }
+
+  RefPtr<gfx::SourceSurface> surface = mImage->GetAsSourceSurface();
+  if (surface->GetSize() != gfx::IntSize(mWidth, mHeight)) {
+    return MatchWithIntrinsicSize();
+  }
+
+  return surface.forget();
+}
+
+void ImageBitmapRenderingContext::SetOpaqueValueFromOpaqueAttr(
+    bool aOpaqueAttrValue) {
+  // ignored
+}
+
+bool ImageBitmapRenderingContext::GetIsOpaque() { return false; }
+
+NS_IMETHODIMP
+ImageBitmapRenderingContext::Reset() {
+  if (mCanvasElement) {
+    mCanvasElement->InvalidateCanvas();
+  }
+
+  mImage = nullptr;
+  mIsCapturedFrameInvalid = false;
+  return NS_OK;
+}
+
+already_AddRefed<layers::Layer> ImageBitmapRenderingContext::GetCanvasLayer(
+    nsDisplayListBuilder* aBuilder, Layer* aOldLayer, LayerManager* aManager) {
+  if (!mImage) {
+    // No DidTransactionCallback will be received, so mark the context clean
+    // now so future invalidations will be dispatched.
+    MarkContextClean();
+    return nullptr;
+  }
+
+  RefPtr<layers::ImageLayer> imageLayer;
+
+  if (aOldLayer) {
+    imageLayer = static_cast<layers::ImageLayer*>(aOldLayer);
+  } else {
+    imageLayer = aManager->CreateImageLayer();
+  }
+
+  RefPtr<layers::ImageContainer> imageContainer = imageLayer->GetContainer();
+  if (!imageContainer) {
+    imageContainer = LayerManager::CreateImageContainer();
+    imageLayer->SetContainer(imageContainer);
+  }
+
+  AutoTArray<layers::ImageContainer::NonOwningImage, 1> imageList;
+  RefPtr<layers::Image> image = ClipToIntrinsicSize();
+  if (!image) {
+    return nullptr;
+  }
+  imageList.AppendElement(layers::ImageContainer::NonOwningImage(image));
+  imageContainer->SetCurrentImages(imageList);
+
+  return imageLayer.forget();
+}
+
+bool ImageBitmapRenderingContext::UpdateWebRenderCanvasData(
+    nsDisplayListBuilder* aBuilder, WebRenderCanvasData* aCanvasData) {
+  if (!mImage) {
+    // No DidTransactionCallback will be received, so mark the context clean
+    // now so future invalidations will be dispatched.
+    MarkContextClean();
+    return false;
+  }
+
+  RefPtr<layers::ImageContainer> imageContainer =
+      aCanvasData->GetImageContainer();
+  AutoTArray<layers::ImageContainer::NonOwningImage, 1> imageList;
+  RefPtr<layers::Image> image = ClipToIntrinsicSize();
+  if (!image) {
+    return false;
+  }
+
+  imageList.AppendElement(layers::ImageContainer::NonOwningImage(image));
+  imageContainer->SetCurrentImages(imageList);
+  return true;
+}
+
+void ImageBitmapRenderingContext::MarkContextClean() {}
+
+NS_IMETHODIMP
+ImageBitmapRenderingContext::Redraw(const gfxRect& aDirty) {
+  mIsCapturedFrameInvalid = true;
+
+  if (mOffscreenCanvas) {
+    RefPtr<layers::ImageContainer> imageContainer =
+        mOffscreenCanvas->GetImageContainer();
+    if (imageContainer) {
+      RefPtr<layers::Image> image = ClipToIntrinsicSize();
+      if (image) {
+        AutoTArray<layers::ImageContainer::NonOwningImage, 1> imageList;
+        imageList.AppendElement(layers::ImageContainer::NonOwningImage(image));
+        imageContainer->SetCurrentImages(imageList);
+      } else {
+        imageContainer->ClearAllImages();
+      }
+    }
+    mOffscreenCanvas->CommitFrameToCompositor();
+  }
+
+  if (!mCanvasElement) {
+    return NS_OK;
+  }
+
+  mozilla::gfx::Rect rect = ToRect(aDirty);
+  mCanvasElement->InvalidateCanvasContent(&rect);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+ImageBitmapRenderingContext::SetIsIPC(bool aIsIPC) { return NS_OK; }
+
+void ImageBitmapRenderingContext::DidRefresh() {}
+
+void ImageBitmapRenderingContext::MarkContextCleanForFrameCapture() {
+  mIsCapturedFrameInvalid = false;
+}
+
+bool ImageBitmapRenderingContext::IsContextCleanForFrameCapture() {
+  return !mIsCapturedFrameInvalid;
+}
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(ImageBitmapRenderingContext)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(ImageBitmapRenderingContext)
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(ImageBitmapRenderingContext,
+                                      mCanvasElement, mOffscreenCanvas)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ImageBitmapRenderingContext)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsICanvasRenderingContextInternal)
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+}  // namespace mozilla::dom