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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 "DrawTargetCapture.h"
#include "DrawCommand.h"
#include "DrawCommands.h"
#include "gfxPlatform.h"
#include "SourceSurfaceCapture.h"
#include "FilterNodeCapture.h"
#include "PathCapture.h"
namespace mozilla {
namespace gfx {
DrawTargetCaptureImpl::~DrawTargetCaptureImpl() {
if (mSnapshot && !mSnapshot->hasOneRef()) {
mSnapshot->DrawTargetWillDestroy();
mSnapshot = nullptr;
}
}
DrawTargetCaptureImpl::DrawTargetCaptureImpl(gfx::DrawTarget* aTarget,
size_t aFlushBytes)
: mSnapshot(nullptr),
mStride(0),
mSurfaceAllocationSize(0),
mFlushBytes(aFlushBytes) {
mSize = aTarget->GetSize();
mCurrentClipBounds.push(IntRect(IntPoint(0, 0), mSize));
mFormat = aTarget->GetFormat();
SetPermitSubpixelAA(aTarget->GetPermitSubpixelAA());
mRefDT = aTarget;
}
DrawTargetCaptureImpl::DrawTargetCaptureImpl(BackendType aBackend,
const IntSize& aSize,
SurfaceFormat aFormat)
: mSize(aSize),
mSnapshot(nullptr),
mStride(0),
mSurfaceAllocationSize(0),
mFlushBytes(0) {
RefPtr<DrawTarget> screenRefDT =
gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget();
mCurrentClipBounds.push(IntRect(IntPoint(0, 0), aSize));
mFormat = aFormat;
SetPermitSubpixelAA(IsOpaque(mFormat));
if (aBackend == screenRefDT->GetBackendType()) {
mRefDT = screenRefDT;
} else {
// This situation can happen if a blur operation decides to
// use an unaccelerated path even if the system backend is
// Direct2D.
//
// We don't really want to encounter the reverse scenario:
// we shouldn't pick an accelerated backend if the system
// backend is skia.
if (aBackend == BackendType::DIRECT2D1_1) {
gfxWarning() << "Creating a RefDT in DrawTargetCapture.";
}
// Create a 1x1 size ref dt to create assets
// If we have to snapshot, we'll just create the real DT
IntSize size(1, 1);
mRefDT = Factory::CreateDrawTarget(aBackend, size, mFormat);
}
}
bool DrawTargetCaptureImpl::Init(const IntSize& aSize, DrawTarget* aRefDT) {
if (!aRefDT) {
return false;
}
mRefDT = aRefDT;
mSize = aSize;
mCurrentClipBounds.push(IntRect(IntPoint(0, 0), aSize));
mFormat = aRefDT->GetFormat();
SetPermitSubpixelAA(IsOpaque(mFormat));
return true;
}
void DrawTargetCaptureImpl::InitForData(int32_t aStride,
size_t aSurfaceAllocationSize) {
MOZ_ASSERT(!mFlushBytes);
mStride = aStride;
mSurfaceAllocationSize = aSurfaceAllocationSize;
}
already_AddRefed<SourceSurface> DrawTargetCaptureImpl::Snapshot() {
if (!mSnapshot) {
mSnapshot = new SourceSurfaceCapture(this);
}
RefPtr<SourceSurface> surface = mSnapshot;
return surface.forget();
}
already_AddRefed<SourceSurface> DrawTargetCaptureImpl::IntoLuminanceSource(
LuminanceType aLuminanceType, float aOpacity) {
RefPtr<SourceSurface> surface =
new SourceSurfaceCapture(this, aLuminanceType, aOpacity);
return surface.forget();
}
already_AddRefed<SourceSurface> DrawTargetCaptureImpl::OptimizeSourceSurface(
SourceSurface* aSurface) const {
// If the surface is a recording, make sure it gets resolved on the paint
// thread.
if (aSurface->GetType() == SurfaceType::CAPTURE) {
RefPtr<SourceSurface> surface = aSurface;
return surface.forget();
}
RefPtr<SourceSurfaceCapture> surface = new SourceSurfaceCapture(
const_cast<DrawTargetCaptureImpl*>(this), aSurface);
return surface.forget();
}
void DrawTargetCaptureImpl::DetachAllSnapshots() { MarkChanged(); }
#define AppendCommand(arg) new (AppendToCommandList<arg>()) arg
#define ReuseOrAppendCommand(arg) new (ReuseOrAppendToCommandList<arg>()) arg
void DrawTargetCaptureImpl::SetPermitSubpixelAA(bool aPermitSubpixelAA) {
// Save memory by eliminating state changes with no effect
if (mPermitSubpixelAA == aPermitSubpixelAA) {
return;
}
ReuseOrAppendCommand(SetPermitSubpixelAACommand)(aPermitSubpixelAA);
// Have to update mPermitSubpixelAA for this DT
// because some code paths query the current setting
// to determine subpixel AA eligibility.
DrawTarget::SetPermitSubpixelAA(aPermitSubpixelAA);
}
void DrawTargetCaptureImpl::DrawSurface(SourceSurface* aSurface,
const Rect& aDest, const Rect& aSource,
const DrawSurfaceOptions& aSurfOptions,
const DrawOptions& aOptions) {
aSurface->GuaranteePersistance();
AppendCommand(DrawSurfaceCommand)(aSurface, aDest, aSource, aSurfOptions,
aOptions);
}
void DrawTargetCaptureImpl::DrawSurfaceWithShadow(
SourceSurface* aSurface, const Point& aDest, const DeviceColor& aColor,
const Point& aOffset, Float aSigma, CompositionOp aOperator) {
aSurface->GuaranteePersistance();
AppendCommand(DrawSurfaceWithShadowCommand)(aSurface, aDest, aColor, aOffset,
aSigma, aOperator);
}
void DrawTargetCaptureImpl::DrawFilter(FilterNode* aNode,
const Rect& aSourceRect,
const Point& aDestPoint,
const DrawOptions& aOptions) {
// @todo XXX - this won't work properly long term yet due to filternodes not
// being immutable.
AppendCommand(DrawFilterCommand)(aNode, aSourceRect, aDestPoint, aOptions);
}
void DrawTargetCaptureImpl::ClearRect(const Rect& aRect) {
AppendCommand(ClearRectCommand)(aRect);
}
void DrawTargetCaptureImpl::MaskSurface(const Pattern& aSource,
SourceSurface* aMask, Point aOffset,
const DrawOptions& aOptions) {
aMask->GuaranteePersistance();
AppendCommand(MaskSurfaceCommand)(aSource, aMask, aOffset, aOptions);
}
void DrawTargetCaptureImpl::CopySurface(SourceSurface* aSurface,
const IntRect& aSourceRect,
const IntPoint& aDestination) {
aSurface->GuaranteePersistance();
AppendCommand(CopySurfaceCommand)(aSurface, aSourceRect, aDestination);
}
void DrawTargetCaptureImpl::CopyRect(const IntRect& aSourceRect,
const IntPoint& aDestination) {
AppendCommand(CopyRectCommand)(aSourceRect, aDestination);
}
void DrawTargetCaptureImpl::FillRect(const Rect& aRect, const Pattern& aPattern,
const DrawOptions& aOptions) {
AppendCommand(FillRectCommand)(aRect, aPattern, aOptions);
}
void DrawTargetCaptureImpl::FillRoundedRect(const RoundedRect& aRect,
const Pattern& aPattern,
const DrawOptions& aOptions) {
AppendCommand(FillRoundedRectCommand)(aRect, aPattern, aOptions);
}
void DrawTargetCaptureImpl::StrokeRect(const Rect& aRect,
const Pattern& aPattern,
const StrokeOptions& aStrokeOptions,
const DrawOptions& aOptions) {
AppendCommand(StrokeRectCommand)(aRect, aPattern, aStrokeOptions, aOptions);
}
void DrawTargetCaptureImpl::StrokeLine(const Point& aStart, const Point& aEnd,
const Pattern& aPattern,
const StrokeOptions& aStrokeOptions,
const DrawOptions& aOptions) {
AppendCommand(StrokeLineCommand)(aStart, aEnd, aPattern, aStrokeOptions,
aOptions);
}
void DrawTargetCaptureImpl::Stroke(const Path* aPath, const Pattern& aPattern,
const StrokeOptions& aStrokeOptions,
const DrawOptions& aOptions) {
AppendCommand(StrokeCommand)(aPath, aPattern, aStrokeOptions, aOptions);
}
void DrawTargetCaptureImpl::Fill(const Path* aPath, const Pattern& aPattern,
const DrawOptions& aOptions) {
AppendCommand(FillCommand)(aPath, aPattern, aOptions);
}
void DrawTargetCaptureImpl::FillGlyphs(ScaledFont* aFont,
const GlyphBuffer& aBuffer,
const Pattern& aPattern,
const DrawOptions& aOptions) {
AppendCommand(FillGlyphsCommand)(aFont, aBuffer, aPattern, aOptions);
}
void DrawTargetCaptureImpl::StrokeGlyphs(ScaledFont* aFont,
const GlyphBuffer& aBuffer,
const Pattern& aPattern,
const StrokeOptions& aStrokeOptions,
const DrawOptions& aOptions) {
AppendCommand(StrokeGlyphsCommand)(aFont, aBuffer, aPattern, aStrokeOptions,
aOptions);
}
void DrawTargetCaptureImpl::Mask(const Pattern& aSource, const Pattern& aMask,
const DrawOptions& aOptions) {
AppendCommand(MaskCommand)(aSource, aMask, aOptions);
}
void DrawTargetCaptureImpl::PushClip(const Path* aPath) {
// We need Pushes and Pops to match so instead of trying
// to compute the bounds of the path just repush the current
// bounds.
mCurrentClipBounds.push(mCurrentClipBounds.top());
AppendCommand(PushClipCommand)(aPath);
}
void DrawTargetCaptureImpl::PushClipRect(const Rect& aRect) {
IntRect deviceRect = RoundedOut(mTransform.TransformBounds(aRect));
mCurrentClipBounds.push(mCurrentClipBounds.top().Intersect(deviceRect));
AppendCommand(PushClipRectCommand)(aRect);
}
void DrawTargetCaptureImpl::PushLayer(bool aOpaque, Float aOpacity,
SourceSurface* aMask,
const Matrix& aMaskTransform,
const IntRect& aBounds,
bool aCopyBackground) {
// Have to update mPermitSubpixelAA for this DT
// because some code paths query the current setting
// to determine subpixel AA eligibility.
PushedLayer layer(GetPermitSubpixelAA());
mPushedLayers.push_back(layer);
DrawTarget::SetPermitSubpixelAA(aOpaque);
if (aMask) {
aMask->GuaranteePersistance();
}
AppendCommand(PushLayerCommand)(aOpaque, aOpacity, aMask, aMaskTransform,
aBounds, aCopyBackground);
}
void DrawTargetCaptureImpl::PopLayer() {
MOZ_ASSERT(mPushedLayers.size());
DrawTarget::SetPermitSubpixelAA(mPushedLayers.back().mOldPermitSubpixelAA);
mPushedLayers.pop_back();
AppendCommand(PopLayerCommand)();
}
void DrawTargetCaptureImpl::PopClip() {
mCurrentClipBounds.pop();
AppendCommand(PopClipCommand)();
}
void DrawTargetCaptureImpl::SetTransform(const Matrix& aTransform) {
// Save memory by eliminating state changes with no effect
if (mTransform.ExactlyEquals(aTransform)) {
return;
}
ReuseOrAppendCommand(SetTransformCommand)(aTransform);
// Have to update the transform for this DT
// because some code paths query the current transform
// to render specific things.
DrawTarget::SetTransform(aTransform);
}
void DrawTargetCaptureImpl::Blur(const AlphaBoxBlur& aBlur) {
// gfxAlphaBoxBlur should not use this if it takes the accelerated path.
MOZ_ASSERT(GetBackendType() == BackendType::SKIA);
AppendCommand(BlurCommand)(aBlur);
}
void DrawTargetCaptureImpl::PadEdges(const IntRegion& aRegion) {
AppendCommand(PadEdgesCommand)(aRegion);
}
void DrawTargetCaptureImpl::ReplayToDrawTarget(DrawTarget* aDT,
const Matrix& aTransform) {
for (CaptureCommandList::iterator iter(mCommands); !iter.Done();
iter.Next()) {
DrawingCommand* cmd = iter.Get();
cmd->ExecuteOnDT(aDT, &aTransform);
}
}
void DrawTargetCaptureImpl::MarkChanged() {
if (!mSnapshot) {
return;
}
if (mSnapshot->hasOneRef()) {
mSnapshot = nullptr;
return;
}
mSnapshot->DrawTargetWillChange();
mSnapshot = nullptr;
}
already_AddRefed<DrawTarget> DrawTargetCaptureImpl::CreateSimilarDrawTarget(
const IntSize& aSize, SurfaceFormat aFormat) const {
return MakeAndAddRef<DrawTargetCaptureImpl>(GetBackendType(), aSize, aFormat);
}
RefPtr<DrawTarget> DrawTargetCaptureImpl::CreateClippedDrawTarget(
const Rect& aBounds, SurfaceFormat aFormat) {
IntRect& bounds = mCurrentClipBounds.top();
auto dt = MakeRefPtr<DrawTargetCaptureImpl>(GetBackendType(), bounds.Size(),
aFormat);
RefPtr<DrawTarget> result =
gfx::Factory::CreateOffsetDrawTarget(dt, bounds.TopLeft());
result->SetTransform(mTransform);
return result;
}
RefPtr<DrawTarget> DrawTargetCaptureImpl::CreateSimilarRasterTarget(
const IntSize& aSize, SurfaceFormat aFormat) const {
MOZ_ASSERT(!mRefDT->IsCaptureDT());
return mRefDT->CreateSimilarDrawTarget(aSize, aFormat);
}
already_AddRefed<PathBuilder> DrawTargetCaptureImpl::CreatePathBuilder(
FillRule aFillRule) const {
if (mRefDT->GetBackendType() == BackendType::DIRECT2D1_1) {
return MakeRefPtr<PathBuilderCapture>(aFillRule, mRefDT).forget();
}
return mRefDT->CreatePathBuilder(aFillRule);
}
already_AddRefed<FilterNode> DrawTargetCaptureImpl::CreateFilter(
FilterType aType) {
if (mRefDT->GetBackendType() == BackendType::DIRECT2D1_1) {
return MakeRefPtr<FilterNodeCapture>(aType).forget();
} else {
return mRefDT->CreateFilter(aType);
}
}
bool DrawTargetCaptureImpl::IsEmpty() const { return mCommands.IsEmpty(); }
void DrawTargetCaptureImpl::Dump() {
TreeLog<> output;
output << "DrawTargetCapture(" << (void*)(this) << ")\n";
TreeAutoIndent<> indent(output);
mCommands.Log(output);
output << "\n";
}
} // namespace gfx
} // namespace mozilla