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-rw-r--r--gfx/2d/SourceSurfaceD2D1.cpp245
1 files changed, 245 insertions, 0 deletions
diff --git a/gfx/2d/SourceSurfaceD2D1.cpp b/gfx/2d/SourceSurfaceD2D1.cpp
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index 0000000000..9aef7ab54e
--- /dev/null
+++ b/gfx/2d/SourceSurfaceD2D1.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "SourceSurfaceD2D1.h"
+#include "DrawTargetD2D1.h"
+
+namespace mozilla {
+namespace gfx {
+
+SourceSurfaceD2D1::SourceSurfaceD2D1(ID2D1Image* aImage,
+ ID2D1DeviceContext* aDC,
+ SurfaceFormat aFormat,
+ const IntSize& aSize, DrawTargetD2D1* aDT)
+ : mImage(aImage),
+ mDC(aDC),
+ mDevice(Factory::GetD2D1Device()),
+ mFormat(aFormat),
+ mSize(aSize),
+ mDrawTarget(aDT),
+ mOwnsCopy(false) {
+ aImage->QueryInterface((ID2D1Bitmap1**)getter_AddRefs(mRealizedBitmap));
+ if (aDT) {
+ mSnapshotLock = aDT->mSnapshotLock;
+ }
+}
+
+SourceSurfaceD2D1::~SourceSurfaceD2D1() {
+ if (mOwnsCopy) {
+ DrawTargetD2D1::mVRAMUsageSS -=
+ mSize.width * mSize.height * BytesPerPixel(mFormat);
+ }
+}
+
+bool SourceSurfaceD2D1::IsValid() const {
+ return mDevice == Factory::GetD2D1Device();
+}
+
+already_AddRefed<DataSourceSurface> SourceSurfaceD2D1::GetDataSurface() {
+ Maybe<MutexAutoLock> lock;
+ if (mSnapshotLock) {
+ lock.emplace(*mSnapshotLock);
+ }
+
+ if (!EnsureRealizedBitmap()) {
+ gfxCriticalError() << "Failed to realize a bitmap, device "
+ << hexa(mDevice);
+ return nullptr;
+ }
+
+ HRESULT hr;
+
+ RefPtr<ID2D1Bitmap1> softwareBitmap;
+ D2D1_BITMAP_PROPERTIES1 props;
+ props.dpiX = 96;
+ props.dpiY = 96;
+ props.pixelFormat = D2DPixelFormat(mFormat);
+ props.colorContext = nullptr;
+ props.bitmapOptions =
+ D2D1_BITMAP_OPTIONS_CANNOT_DRAW | D2D1_BITMAP_OPTIONS_CPU_READ;
+ hr = mDC->CreateBitmap(D2DIntSize(mSize), nullptr, 0, props,
+ (ID2D1Bitmap1**)getter_AddRefs(softwareBitmap));
+
+ if (FAILED(hr)) {
+ gfxCriticalError() << "Failed to create software bitmap: " << mSize
+ << " Code: " << hexa(hr);
+ return nullptr;
+ }
+
+ D2D1_POINT_2U point = D2D1::Point2U(0, 0);
+ D2D1_RECT_U rect = D2D1::RectU(0, 0, mSize.width, mSize.height);
+
+ hr = softwareBitmap->CopyFromBitmap(&point, mRealizedBitmap, &rect);
+
+ if (FAILED(hr)) {
+ gfxWarning() << "Failed to readback into software bitmap. Code: "
+ << hexa(hr);
+ return nullptr;
+ }
+
+ return MakeAndAddRef<DataSourceSurfaceD2D1>(softwareBitmap, mFormat);
+}
+
+bool SourceSurfaceD2D1::EnsureRealizedBitmap() {
+ if (mRealizedBitmap) {
+ return true;
+ }
+
+ // Why aren't we using mDevice here or anywhere else?
+ RefPtr<ID2D1Device> device = Factory::GetD2D1Device();
+ if (!device) {
+ return false;
+ }
+
+ RefPtr<ID2D1DeviceContext> dc;
+ device->CreateDeviceContext(D2D1_DEVICE_CONTEXT_OPTIONS_NONE,
+ getter_AddRefs(dc));
+
+ D2D1_BITMAP_PROPERTIES1 props;
+ props.dpiX = 96;
+ props.dpiY = 96;
+ props.pixelFormat = D2DPixelFormat(mFormat);
+ props.colorContext = nullptr;
+ props.bitmapOptions = D2D1_BITMAP_OPTIONS_TARGET;
+ dc->CreateBitmap(D2DIntSize(mSize), nullptr, 0, props,
+ (ID2D1Bitmap1**)getter_AddRefs(mRealizedBitmap));
+
+ dc->SetTarget(mRealizedBitmap);
+
+ dc->BeginDraw();
+ dc->DrawImage(mImage);
+ dc->EndDraw();
+
+ return true;
+}
+
+void SourceSurfaceD2D1::DrawTargetWillChange() {
+ MOZ_ASSERT(mSnapshotLock);
+ mSnapshotLock->AssertCurrentThreadOwns();
+
+ // At this point in time this should always be true here.
+ MOZ_ASSERT(mRealizedBitmap);
+
+ RefPtr<ID2D1Bitmap1> oldBitmap = mRealizedBitmap;
+
+ D2D1_BITMAP_PROPERTIES1 props;
+ props.dpiX = 96;
+ props.dpiY = 96;
+ props.pixelFormat = D2DPixelFormat(mFormat);
+ props.colorContext = nullptr;
+ props.bitmapOptions = D2D1_BITMAP_OPTIONS_TARGET;
+ HRESULT hr =
+ mDC->CreateBitmap(D2DIntSize(mSize), nullptr, 0, props,
+ (ID2D1Bitmap1**)getter_AddRefs(mRealizedBitmap));
+
+ if (FAILED(hr)) {
+ gfxCriticalError()
+ << "Failed to create bitmap to make DrawTarget copy. Size: " << mSize
+ << " Code: " << hexa(hr);
+ MarkIndependent();
+ return;
+ }
+
+ D2D1_POINT_2U point = D2D1::Point2U(0, 0);
+ D2D1_RECT_U rect = D2D1::RectU(0, 0, mSize.width, mSize.height);
+ mRealizedBitmap->CopyFromBitmap(&point, oldBitmap, &rect);
+ mImage = mRealizedBitmap;
+
+ DrawTargetD2D1::mVRAMUsageSS +=
+ mSize.width * mSize.height * BytesPerPixel(mFormat);
+ mOwnsCopy = true;
+
+ // Ensure the object stays alive for the duration of MarkIndependent.
+ RefPtr<SourceSurfaceD2D1> deathGrip = this;
+ // We now no longer depend on the source surface content remaining the same.
+ MarkIndependent();
+}
+
+void SourceSurfaceD2D1::MarkIndependent() {
+ if (mDrawTarget) {
+ MOZ_ASSERT(mDrawTarget->mSnapshot == this);
+ mDrawTarget->mSnapshot = nullptr;
+ mDrawTarget = nullptr;
+ }
+}
+
+DataSourceSurfaceD2D1::DataSourceSurfaceD2D1(ID2D1Bitmap1* aMappableBitmap,
+ SurfaceFormat aFormat)
+ : mBitmap(aMappableBitmap),
+ mFormat(aFormat),
+ mIsMapped(false),
+ mImplicitMapped(false) {}
+
+DataSourceSurfaceD2D1::~DataSourceSurfaceD2D1() {
+ if (mImplicitMapped) {
+ mBitmap->Unmap();
+ }
+}
+
+IntSize DataSourceSurfaceD2D1::GetSize() const {
+ D2D1_SIZE_F size = mBitmap->GetSize();
+
+ return IntSize(int32_t(size.width), int32_t(size.height));
+}
+
+uint8_t* DataSourceSurfaceD2D1::GetData() {
+ EnsureMapped();
+
+ return mMap.bits;
+}
+
+bool DataSourceSurfaceD2D1::Map(MapType aMapType,
+ MappedSurface* aMappedSurface) {
+ // DataSourceSurfaces used with the new Map API should not be used with
+ // GetData!!
+ MOZ_ASSERT(!mImplicitMapped);
+ MOZ_ASSERT(!mIsMapped);
+
+ if (aMapType != MapType::READ) {
+ gfxWarning() << "Attempt to map D2D1 DrawTarget for writing.";
+ return false;
+ }
+
+ D2D1_MAPPED_RECT map;
+ if (FAILED(mBitmap->Map(D2D1_MAP_OPTIONS_READ, &map))) {
+ gfxCriticalError() << "Failed to map bitmap (M).";
+ return false;
+ }
+ aMappedSurface->mData = map.bits;
+ aMappedSurface->mStride = map.pitch;
+
+ mIsMapped = !!aMappedSurface->mData;
+ return mIsMapped;
+}
+
+void DataSourceSurfaceD2D1::Unmap() {
+ MOZ_ASSERT(mIsMapped);
+
+ mIsMapped = false;
+ mBitmap->Unmap();
+}
+
+int32_t DataSourceSurfaceD2D1::Stride() {
+ EnsureMapped();
+
+ return mMap.pitch;
+}
+
+void DataSourceSurfaceD2D1::EnsureMapped() {
+ // Do not use GetData() after having used Map!
+ MOZ_ASSERT(!mIsMapped);
+ if (mImplicitMapped) {
+ return;
+ }
+ if (FAILED(mBitmap->Map(D2D1_MAP_OPTIONS_READ, &mMap))) {
+ gfxCriticalError() << "Failed to map bitmap (EM).";
+ return;
+ }
+ mImplicitMapped = true;
+}
+
+} // namespace gfx
+} // namespace mozilla