mirror of
https://github.com/roytam1/palemoon27.git
synced 2026-05-26 14:18:48 +00:00
roytam1
1c5959ee6e
- Bug 1125750 - Check the overflow region direction to avoid unnecesary reflow for scrollable frame. (6b5067631) - Bug 1125750 - Add auto test to detect error when using mOuter to check overflow area of a scrollable frame. (4e9c43e31) - override -> MOZ_OVERRIDE (ed1ecc151) - Bug 990907 - Don't add text-overflow markers while being actively scrolled by APZ. (523bc5a3e) - Bug 945584: Part 6 - Implementation of scroll snapping (v10 Patch) (bf64eb0f3) - Bug 945584: Part 7 - Implement Scroll Snapping for Autoscroll, - Triggering scroll snapping at the end of an autoscroll. - This enables text selection to be unencumbered by scroll snapping, while restoring the scroll position to a valid snapping position when the drag operation is completed. (db9ce9811) - Bug 945584: Part 8 - Implement Scroll Snapping for Middle Mouse Button Scrolls (v2 Patch) (06d1b733d) - some MacOS 10.5 Leopard support (6a37f6745) - Bug 945584: Part 9 - Tests for scroll snapping (v4 Patch) (f67175387) - Bug 1102427 - Ensure scroll parents of an active scrollframe are layerized. (910d43ec5) - Bug 1142731 followup. Check isInterpreted() before we call environment(), because of the asmjs lambdas. (29b2acdc7) - Bug 1161627 - part 1 - add move constructor and assignment operator for already_AddRefed&& to RefPtr; This change is prep work for future mass rewriting. (98416d45c) - Bug 1161627 - part 2 - machine-convert TemporaryRef<T> to already_AddRefed<T>; (336e96af7) - Bug 1161627 - part 3 - remove TemporaryRef<T> from RefPtr.h (6c3acdaed) - Bug 940273 - Part 3 - Service Worker Cache webidl. (4b6803d0a) - Bug 940273 - Part 4 - Initial implementation of Service Worker Cache. (74498c108) - Bug 1133861 - Bustage fix. (4a81437c2)
477 lines
17 KiB
C++
477 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ImageEncoder.h"
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#include "mozilla/dom/CanvasRenderingContext2D.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/DataSurfaceHelpers.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/SyncRunnable.h"
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#include "gfxUtils.h"
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using namespace mozilla::gfx;
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namespace mozilla {
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namespace dom {
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// This class should be placed inside GetBRGADataSourceSurfaceSync(). However,
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// due to B2G ICS uses old complier (C++98/03) which forbids local class as
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// template parameter, we need to move this class outside.
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class SurfaceHelper : public nsRunnable {
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public:
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explicit SurfaceHelper(already_AddRefed<layers::Image> aImage) : mImage(aImage) {}
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// It retrieves a SourceSurface reference and convert color format on main
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// thread and passes DataSourceSurface to caller thread.
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NS_IMETHOD Run() {
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// It guarantees the reference will be released on main thread.
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nsCountedRef<nsMainThreadSourceSurfaceRef> surface;
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surface.own(mImage->GetAsSourceSurface().take());
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if (surface->GetFormat() == gfx::SurfaceFormat::B8G8R8A8) {
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mDataSourceSurface = surface->GetDataSurface();
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} else {
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mDataSourceSurface = gfxUtils::
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CopySurfaceToDataSourceSurfaceWithFormat(surface,
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gfx::SurfaceFormat::B8G8R8A8);
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}
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return NS_OK;
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}
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already_AddRefed<gfx::DataSourceSurface> GetDataSurfaceSafe() {
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nsCOMPtr<nsIThread> mainThread = do_GetMainThread();
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MOZ_ASSERT(mainThread);
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SyncRunnable::DispatchToThread(mainThread, this, false);
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return mDataSourceSurface.forget();
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}
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private:
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RefPtr<layers::Image> mImage;
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RefPtr<gfx::DataSourceSurface> mDataSourceSurface;
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};
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// This function returns a DataSourceSurface in B8G8R8A8 format.
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// It uses SourceSurface to do format convert. Because most SourceSurface in
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// image formats should be referenced or dereferenced on main thread, it uses a
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// sync class SurfaceHelper to retrieve SourceSurface and convert to B8G8R8A8 on
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// main thread.
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already_AddRefed<DataSourceSurface>
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GetBRGADataSourceSurfaceSync(already_AddRefed<layers::Image> aImage)
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{
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nsRefPtr<SurfaceHelper> helper = new SurfaceHelper(Move(aImage));
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return helper->GetDataSurfaceSafe();
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}
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class EncodingCompleteEvent : public nsRunnable
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{
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virtual ~EncodingCompleteEvent() {}
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public:
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NS_DECL_ISUPPORTS_INHERITED
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EncodingCompleteEvent(nsIThread* aEncoderThread,
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EncodeCompleteCallback* aEncodeCompleteCallback)
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: mImgSize(0)
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, mType()
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, mImgData(nullptr)
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, mEncoderThread(aEncoderThread)
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, mEncodeCompleteCallback(aEncodeCompleteCallback)
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, mFailed(false)
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{}
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NS_IMETHOD Run() override
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{
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nsresult rv = NS_OK;
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MOZ_ASSERT(NS_IsMainThread());
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if (!mFailed) {
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// The correct parentObject has to be set by the mEncodeCompleteCallback.
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nsRefPtr<File> blob =
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File::CreateMemoryFile(nullptr, mImgData, mImgSize, mType);
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MOZ_ASSERT(blob);
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rv = mEncodeCompleteCallback->ReceiveBlob(blob.forget());
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}
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mEncodeCompleteCallback = nullptr;
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mEncoderThread->Shutdown();
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return rv;
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}
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void SetMembers(void* aImgData, uint64_t aImgSize, const nsAutoString& aType)
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{
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mImgData = aImgData;
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mImgSize = aImgSize;
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mType = aType;
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}
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void SetFailed()
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{
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mFailed = true;
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}
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private:
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uint64_t mImgSize;
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nsAutoString mType;
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void* mImgData;
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nsCOMPtr<nsIThread> mEncoderThread;
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nsRefPtr<EncodeCompleteCallback> mEncodeCompleteCallback;
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bool mFailed;
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};
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NS_IMPL_ISUPPORTS_INHERITED0(EncodingCompleteEvent, nsRunnable);
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class EncodingRunnable : public nsRunnable
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{
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virtual ~EncodingRunnable() {}
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public:
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NS_DECL_ISUPPORTS_INHERITED
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EncodingRunnable(const nsAString& aType,
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const nsAString& aOptions,
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uint8_t* aImageBuffer,
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layers::Image* aImage,
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imgIEncoder* aEncoder,
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EncodingCompleteEvent* aEncodingCompleteEvent,
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int32_t aFormat,
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const nsIntSize aSize,
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bool aUsingCustomOptions)
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: mType(aType)
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, mOptions(aOptions)
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, mImageBuffer(aImageBuffer)
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, mImage(aImage)
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, mEncoder(aEncoder)
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, mEncodingCompleteEvent(aEncodingCompleteEvent)
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, mFormat(aFormat)
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, mSize(aSize)
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, mUsingCustomOptions(aUsingCustomOptions)
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{}
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nsresult ProcessImageData(uint64_t* aImgSize, void** aImgData)
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{
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nsCOMPtr<nsIInputStream> stream;
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nsresult rv = ImageEncoder::ExtractDataInternal(mType,
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mOptions,
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mImageBuffer,
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mFormat,
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mSize,
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mImage,
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nullptr,
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getter_AddRefs(stream),
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mEncoder);
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// If there are unrecognized custom parse options, we should fall back to
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// the default values for the encoder without any options at all.
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if (rv == NS_ERROR_INVALID_ARG && mUsingCustomOptions) {
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rv = ImageEncoder::ExtractDataInternal(mType,
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EmptyString(),
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mImageBuffer,
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mFormat,
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mSize,
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mImage,
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nullptr,
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getter_AddRefs(stream),
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mEncoder);
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}
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NS_ENSURE_SUCCESS(rv, rv);
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rv = stream->Available(aImgSize);
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ENSURE_TRUE(*aImgSize <= UINT32_MAX, NS_ERROR_FILE_TOO_BIG);
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rv = NS_ReadInputStreamToBuffer(stream, aImgData, *aImgSize);
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NS_ENSURE_SUCCESS(rv, rv);
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return rv;
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}
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NS_IMETHOD Run() override
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{
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uint64_t imgSize;
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void* imgData = nullptr;
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nsresult rv = ProcessImageData(&imgSize, &imgData);
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if (NS_FAILED(rv)) {
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mEncodingCompleteEvent->SetFailed();
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} else {
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mEncodingCompleteEvent->SetMembers(imgData, imgSize, mType);
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}
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rv = NS_DispatchToMainThread(mEncodingCompleteEvent);
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if (NS_FAILED(rv)) {
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// Better to leak than to crash.
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mEncodingCompleteEvent.forget();
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return rv;
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}
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return rv;
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}
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private:
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nsAutoString mType;
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nsAutoString mOptions;
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nsAutoArrayPtr<uint8_t> mImageBuffer;
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nsRefPtr<layers::Image> mImage;
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nsCOMPtr<imgIEncoder> mEncoder;
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nsRefPtr<EncodingCompleteEvent> mEncodingCompleteEvent;
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int32_t mFormat;
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const nsIntSize mSize;
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bool mUsingCustomOptions;
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};
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NS_IMPL_ISUPPORTS_INHERITED0(EncodingRunnable, nsRunnable);
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/* static */
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nsresult
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ImageEncoder::ExtractData(nsAString& aType,
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const nsAString& aOptions,
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const nsIntSize aSize,
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nsICanvasRenderingContextInternal* aContext,
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nsIInputStream** aStream)
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{
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nsCOMPtr<imgIEncoder> encoder = ImageEncoder::GetImageEncoder(aType);
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if (!encoder) {
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return NS_IMAGELIB_ERROR_NO_ENCODER;
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}
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return ExtractDataInternal(aType, aOptions, nullptr, 0, aSize, nullptr,
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aContext, aStream, encoder);
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}
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/* static */
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nsresult
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ImageEncoder::ExtractDataFromLayersImageAsync(nsAString& aType,
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const nsAString& aOptions,
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bool aUsingCustomOptions,
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layers::Image* aImage,
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EncodeCompleteCallback* aEncodeCallback)
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{
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nsCOMPtr<imgIEncoder> encoder = ImageEncoder::GetImageEncoder(aType);
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if (!encoder) {
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return NS_IMAGELIB_ERROR_NO_ENCODER;
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}
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nsCOMPtr<nsIThread> encoderThread;
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nsresult rv = NS_NewThread(getter_AddRefs(encoderThread), nullptr);
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NS_ENSURE_SUCCESS(rv, rv);
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nsRefPtr<EncodingCompleteEvent> completeEvent =
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new EncodingCompleteEvent(encoderThread, aEncodeCallback);
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nsIntSize size(aImage->GetSize().width, aImage->GetSize().height);
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nsCOMPtr<nsIRunnable> event = new EncodingRunnable(aType,
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aOptions,
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nullptr,
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aImage,
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encoder,
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completeEvent,
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imgIEncoder::INPUT_FORMAT_HOSTARGB,
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size,
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aUsingCustomOptions);
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return encoderThread->Dispatch(event, NS_DISPATCH_NORMAL);
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}
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/* static */
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nsresult
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ImageEncoder::ExtractDataAsync(nsAString& aType,
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const nsAString& aOptions,
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bool aUsingCustomOptions,
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uint8_t* aImageBuffer,
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int32_t aFormat,
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const nsIntSize aSize,
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EncodeCompleteCallback* aEncodeCallback)
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{
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nsCOMPtr<imgIEncoder> encoder = ImageEncoder::GetImageEncoder(aType);
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if (!encoder) {
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return NS_IMAGELIB_ERROR_NO_ENCODER;
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}
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nsCOMPtr<nsIThread> encoderThread;
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nsresult rv = NS_NewThread(getter_AddRefs(encoderThread), nullptr);
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NS_ENSURE_SUCCESS(rv, rv);
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nsRefPtr<EncodingCompleteEvent> completeEvent =
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new EncodingCompleteEvent(encoderThread, aEncodeCallback);
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nsCOMPtr<nsIRunnable> event = new EncodingRunnable(aType,
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aOptions,
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aImageBuffer,
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nullptr,
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encoder,
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completeEvent,
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aFormat,
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aSize,
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aUsingCustomOptions);
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return encoderThread->Dispatch(event, NS_DISPATCH_NORMAL);
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}
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/*static*/ nsresult
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ImageEncoder::GetInputStream(int32_t aWidth,
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int32_t aHeight,
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uint8_t* aImageBuffer,
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int32_t aFormat,
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imgIEncoder* aEncoder,
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const char16_t* aEncoderOptions,
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nsIInputStream** aStream)
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{
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nsresult rv =
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aEncoder->InitFromData(aImageBuffer,
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aWidth * aHeight * 4, aWidth, aHeight, aWidth * 4,
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aFormat,
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nsDependentString(aEncoderOptions));
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NS_ENSURE_SUCCESS(rv, rv);
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return CallQueryInterface(aEncoder, aStream);
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}
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/* static */
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nsresult
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ImageEncoder::ExtractDataInternal(const nsAString& aType,
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const nsAString& aOptions,
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uint8_t* aImageBuffer,
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int32_t aFormat,
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const nsIntSize aSize,
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layers::Image* aImage,
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nsICanvasRenderingContextInternal* aContext,
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nsIInputStream** aStream,
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imgIEncoder* aEncoder)
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{
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if (aSize.IsEmpty()) {
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return NS_ERROR_INVALID_ARG;
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}
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nsCOMPtr<nsIInputStream> imgStream;
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// get image bytes
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nsresult rv;
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if (aImageBuffer) {
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rv = ImageEncoder::GetInputStream(
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aSize.width,
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aSize.height,
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aImageBuffer,
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aFormat,
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aEncoder,
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nsPromiseFlatString(aOptions).get(),
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getter_AddRefs(imgStream));
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} else if (aContext) {
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NS_ConvertUTF16toUTF8 encoderType(aType);
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rv = aContext->GetInputStream(encoderType.get(),
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nsPromiseFlatString(aOptions).get(),
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getter_AddRefs(imgStream));
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} else if (aImage) {
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// It is safe to convert PlanarYCbCr format from YUV to RGB off-main-thread.
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// Other image formats could have problem to convert format off-main-thread.
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// So here it uses a help function GetBRGADataSourceSurfaceSync() to convert
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// format on main thread.
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if (aImage->GetFormat() == ImageFormat::PLANAR_YCBCR) {
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nsTArray<uint8_t> data;
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layers::PlanarYCbCrImage* ycbcrImage = static_cast<layers::PlanarYCbCrImage*> (aImage);
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gfxImageFormat format = gfxImageFormat::ARGB32;
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uint32_t stride = GetAlignedStride<16>(aSize.width * 4);
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size_t length = BufferSizeFromStrideAndHeight(stride, aSize.height);
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data.SetCapacity(length);
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gfxUtils::ConvertYCbCrToRGB(*ycbcrImage->GetData(),
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format,
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aSize,
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data.Elements(),
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stride);
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rv = aEncoder->InitFromData(data.Elements(),
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aSize.width * aSize.height * 4,
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aSize.width,
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aSize.height,
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aSize.width * 4,
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imgIEncoder::INPUT_FORMAT_HOSTARGB,
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aOptions);
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} else {
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RefPtr<gfx::DataSourceSurface> dataSurface;
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RefPtr<layers::Image> image(aImage);
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dataSurface = GetBRGADataSourceSurfaceSync(image.forget());
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DataSourceSurface::MappedSurface map;
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if (!dataSurface->Map(gfx::DataSourceSurface::MapType::READ, &map)) {
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return NS_ERROR_INVALID_ARG;
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}
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rv = aEncoder->InitFromData(map.mData,
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aSize.width * aSize.height * 4,
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aSize.width,
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aSize.height,
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aSize.width * 4,
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imgIEncoder::INPUT_FORMAT_HOSTARGB,
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aOptions);
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dataSurface->Unmap();
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}
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if (NS_SUCCEEDED(rv)) {
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imgStream = do_QueryInterface(aEncoder);
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}
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} else {
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CheckedInt32 requiredBytes = CheckedInt32(aSize.width) * CheckedInt32(aSize.height) * 4;
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if (MOZ_UNLIKELY(!requiredBytes.isValid())) {
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return NS_ERROR_INVALID_ARG;
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}
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// no context, so we have to encode an empty image
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// note that if we didn't have a current context, the spec says we're
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// supposed to just return transparent black pixels of the canvas
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// dimensions.
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RefPtr<DataSourceSurface> emptyCanvas =
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Factory::CreateDataSourceSurfaceWithStride(IntSize(aSize.width, aSize.height),
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SurfaceFormat::B8G8R8A8,
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4 * aSize.width, true);
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if (NS_WARN_IF(!emptyCanvas)) {
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return NS_ERROR_INVALID_ARG;
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}
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DataSourceSurface::MappedSurface map;
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if (!emptyCanvas->Map(DataSourceSurface::MapType::WRITE, &map)) {
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return NS_ERROR_INVALID_ARG;
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}
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rv = aEncoder->InitFromData(map.mData,
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aSize.width * aSize.height * 4,
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aSize.width,
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aSize.height,
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aSize.width * 4,
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imgIEncoder::INPUT_FORMAT_HOSTARGB,
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aOptions);
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emptyCanvas->Unmap();
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if (NS_SUCCEEDED(rv)) {
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imgStream = do_QueryInterface(aEncoder);
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}
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}
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NS_ENSURE_SUCCESS(rv, rv);
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imgStream.forget(aStream);
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return rv;
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}
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/* static */
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already_AddRefed<imgIEncoder>
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ImageEncoder::GetImageEncoder(nsAString& aType)
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{
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// Get an image encoder for the media type.
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nsCString encoderCID("@mozilla.org/image/encoder;2?type=");
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NS_ConvertUTF16toUTF8 encoderType(aType);
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encoderCID += encoderType;
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nsCOMPtr<imgIEncoder> encoder = do_CreateInstance(encoderCID.get());
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if (!encoder && aType != NS_LITERAL_STRING("image/png")) {
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// Unable to create an encoder instance of the specified type. Falling back
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// to PNG.
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aType.AssignLiteral("image/png");
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nsCString PNGEncoderCID("@mozilla.org/image/encoder;2?type=image/png");
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encoder = do_CreateInstance(PNGEncoderCID.get());
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}
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return encoder.forget();
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}
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} // namespace dom
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} // namespace mozilla
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