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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 "DrawTargetDual.h"
#include "Tools.h"
#include "Logging.h"
namespace mozilla {
namespace gfx {
class DualSurface {
public:
inline explicit DualSurface(SourceSurface* aSurface) {
if (!aSurface) {
mA = mB = nullptr;
return;
}
if (aSurface->GetType() != SurfaceType::DUAL_DT) {
mA = mB = aSurface;
return;
}
SourceSurfaceDual* ssDual = static_cast<SourceSurfaceDual*>(aSurface);
mA = ssDual->mA;
mB = ssDual->mB;
}
SourceSurface* mA;
SourceSurface* mB;
};
/* This only needs to split patterns up for SurfacePatterns. Only in that
* case can we be dealing with a 'dual' source (SourceSurfaceDual) and do
* we need to pass separate patterns into our destination DrawTargets.
*/
class DualPattern final {
public:
inline explicit DualPattern(const Pattern& aPattern)
: mPatternsInitialized(false) {
if (aPattern.GetType() != PatternType::SURFACE) {
mA = mB = &aPattern;
return;
}
const SurfacePattern* surfPat =
static_cast<const SurfacePattern*>(&aPattern);
if (surfPat->mSurface->GetType() != SurfaceType::DUAL_DT) {
mA = mB = &aPattern;
return;
}
const SourceSurfaceDual* ssDual =
static_cast<const SourceSurfaceDual*>(surfPat->mSurface.get());
mA = new (mSurfPatA.addr())
SurfacePattern(ssDual->mA, surfPat->mExtendMode, surfPat->mMatrix,
surfPat->mSamplingFilter);
mB = new (mSurfPatB.addr())
SurfacePattern(ssDual->mB, surfPat->mExtendMode, surfPat->mMatrix,
surfPat->mSamplingFilter);
mPatternsInitialized = true;
}
inline ~DualPattern() {
if (mPatternsInitialized) {
mA->~Pattern();
mB->~Pattern();
}
}
ClassStorage<SurfacePattern> mSurfPatA;
ClassStorage<SurfacePattern> mSurfPatB;
const Pattern* mA;
const Pattern* mB;
bool mPatternsInitialized;
};
void DrawTargetDual::DetachAllSnapshots() {
mA->DetachAllSnapshots();
mB->DetachAllSnapshots();
}
void DrawTargetDual::DrawSurface(SourceSurface* aSurface, const Rect& aDest,
const Rect& aSource,
const DrawSurfaceOptions& aSurfOptions,
const DrawOptions& aOptions) {
DualSurface surface(aSurface);
mA->DrawSurface(surface.mA, aDest, aSource, aSurfOptions, aOptions);
mB->DrawSurface(surface.mB, aDest, aSource, aSurfOptions, aOptions);
}
void DrawTargetDual::DrawSurfaceWithShadow(SourceSurface* aSurface,
const Point& aDest,
const DeviceColor& aColor,
const Point& aOffset, Float aSigma,
CompositionOp aOp) {
DualSurface surface(aSurface);
mA->DrawSurfaceWithShadow(surface.mA, aDest, aColor, aOffset, aSigma, aOp);
mB->DrawSurfaceWithShadow(surface.mB, aDest, aColor, aOffset, aSigma, aOp);
}
void DrawTargetDual::MaskSurface(const Pattern& aSource, SourceSurface* aMask,
Point aOffset, const DrawOptions& aOptions) {
DualPattern source(aSource);
DualSurface mask(aMask);
mA->MaskSurface(*source.mA, mask.mA, aOffset, aOptions);
mB->MaskSurface(*source.mB, mask.mB, aOffset, aOptions);
}
void DrawTargetDual::ClearRect(const Rect& aRect) {
mA->FillRect(aRect, ColorPattern(DeviceColor::MaskOpaqueBlack()));
mB->FillRect(aRect, ColorPattern(DeviceColor::MaskOpaqueWhite()));
}
void DrawTargetDual::CopySurface(SourceSurface* aSurface,
const IntRect& aSourceRect,
const IntPoint& aDestination) {
DualSurface surface(aSurface);
mA->CopySurface(surface.mA, aSourceRect, aDestination);
mB->CopySurface(surface.mB, aSourceRect, aDestination);
}
void DrawTargetDual::FillRect(const Rect& aRect, const Pattern& aPattern,
const DrawOptions& aOptions) {
DualPattern pattern(aPattern);
mA->FillRect(aRect, *pattern.mA, aOptions);
mB->FillRect(aRect, *pattern.mB, aOptions);
}
void DrawTargetDual::StrokeRect(const Rect& aRect, const Pattern& aPattern,
const StrokeOptions& aStrokeOptions,
const DrawOptions& aOptions) {
DualPattern pattern(aPattern);
mA->StrokeRect(aRect, *pattern.mA, aStrokeOptions, aOptions);
mB->StrokeRect(aRect, *pattern.mB, aStrokeOptions, aOptions);
}
void DrawTargetDual::StrokeLine(const Point& aStart, const Point& aEnd,
const Pattern& aPattern,
const StrokeOptions& aStrokeOptions,
const DrawOptions& aOptions) {
DualPattern pattern(aPattern);
mA->StrokeLine(aStart, aEnd, *pattern.mA, aStrokeOptions, aOptions);
mB->StrokeLine(aStart, aEnd, *pattern.mB, aStrokeOptions, aOptions);
}
void DrawTargetDual::Stroke(const Path* aPath, const Pattern& aPattern,
const StrokeOptions& aStrokeOptions,
const DrawOptions& aOptions) {
DualPattern pattern(aPattern);
mA->Stroke(aPath, *pattern.mA, aStrokeOptions, aOptions);
mB->Stroke(aPath, *pattern.mB, aStrokeOptions, aOptions);
}
void DrawTargetDual::Fill(const Path* aPath, const Pattern& aPattern,
const DrawOptions& aOptions) {
DualPattern pattern(aPattern);
mA->Fill(aPath, *pattern.mA, aOptions);
mB->Fill(aPath, *pattern.mB, aOptions);
}
void DrawTargetDual::FillGlyphs(ScaledFont* aScaledFont,
const GlyphBuffer& aBuffer,
const Pattern& aPattern,
const DrawOptions& aOptions) {
DualPattern pattern(aPattern);
mA->FillGlyphs(aScaledFont, aBuffer, *pattern.mA, aOptions);
mB->FillGlyphs(aScaledFont, aBuffer, *pattern.mB, aOptions);
}
void DrawTargetDual::Mask(const Pattern& aSource, const Pattern& aMask,
const DrawOptions& aOptions) {
DualPattern source(aSource);
DualPattern mask(aMask);
mA->Mask(*source.mA, *mask.mA, aOptions);
mB->Mask(*source.mB, *mask.mB, aOptions);
}
void DrawTargetDual::PushLayer(bool aOpaque, Float aOpacity,
SourceSurface* aMask,
const Matrix& aMaskTransform,
const IntRect& aBounds, bool aCopyBackground) {
DualSurface mask(aMask);
mA->PushLayer(aOpaque, aOpacity, mask.mA, aMaskTransform, aBounds,
aCopyBackground);
mB->PushLayer(aOpaque, aOpacity, mask.mB, aMaskTransform, aBounds,
aCopyBackground);
}
already_AddRefed<DrawTarget> DrawTargetDual::CreateSimilarDrawTarget(
const IntSize& aSize, SurfaceFormat aFormat) const {
/* Now that we have PushLayer there a very few cases where a user of
* DrawTargetDual wants to have a DualTarget when creating a similar one. */
return mA->CreateSimilarDrawTarget(aSize, aFormat);
}
RefPtr<DrawTarget> DrawTargetDual::CreateClippedDrawTarget(
const Rect& aBounds, SurfaceFormat aFormat) {
/* The user probably doesn't want a DualDrawTarget here. */
return mA->CreateClippedDrawTarget(aBounds, aFormat);
}
bool DrawTargetDual::CanCreateSimilarDrawTarget(const IntSize& aSize,
SurfaceFormat aFormat) const {
return mA->CanCreateSimilarDrawTarget(aSize, aFormat);
}
} // namespace gfx
} // namespace mozilla
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