зеркало из https://github.com/mozilla/gecko-dev.git
122 строки
4.5 KiB
C++
122 строки
4.5 KiB
C++
/* -*- 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/. */
|
|
|
|
#ifndef GFX_BASICPAINTEDLAYER_H
|
|
#define GFX_BASICPAINTEDLAYER_H
|
|
|
|
#include "Layers.h" // for PaintedLayer, LayerManager, etc
|
|
#include "RotatedBuffer.h" // for RotatedBuffer, etc
|
|
#include "BasicImplData.h" // for BasicImplData
|
|
#include "BasicLayers.h" // for BasicLayerManager
|
|
#include "gfxPoint.h" // for gfxPoint
|
|
#include "mozilla/RefPtr.h" // for RefPtr
|
|
#include "mozilla/gfx/BasePoint.h" // for BasePoint
|
|
#include "mozilla/layers/ContentClient.h" // for ContentClientBasic
|
|
#include "mozilla/mozalloc.h" // for operator delete
|
|
#include "nsDebug.h" // for NS_ASSERTION
|
|
#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
|
|
#include "nsRegion.h" // for nsIntRegion
|
|
class gfxContext;
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
class ReadbackProcessor;
|
|
|
|
class BasicPaintedLayer : public PaintedLayer, public BasicImplData {
|
|
public:
|
|
typedef ContentClient::PaintState PaintState;
|
|
typedef ContentClient::ContentType ContentType;
|
|
|
|
BasicPaintedLayer(BasicLayerManager* aLayerManager, gfx::BackendType aBackend)
|
|
: PaintedLayer(aLayerManager, static_cast<BasicImplData*>(this)),
|
|
mContentClient(nullptr),
|
|
mBackend(aBackend) {
|
|
MOZ_COUNT_CTOR(BasicPaintedLayer);
|
|
}
|
|
|
|
protected:
|
|
virtual ~BasicPaintedLayer() { MOZ_COUNT_DTOR(BasicPaintedLayer); }
|
|
|
|
public:
|
|
void SetVisibleRegion(const LayerIntRegion& aRegion) override {
|
|
NS_ASSERTION(BasicManager()->InConstruction(),
|
|
"Can only set properties in construction phase");
|
|
PaintedLayer::SetVisibleRegion(aRegion);
|
|
}
|
|
void InvalidateRegion(const nsIntRegion& aRegion) override {
|
|
NS_ASSERTION(BasicManager()->InConstruction(),
|
|
"Can only set properties in construction phase");
|
|
mInvalidRegion.Add(aRegion);
|
|
UpdateValidRegionAfterInvalidRegionChanged();
|
|
}
|
|
|
|
void PaintThebes(gfxContext* aContext, Layer* aMaskLayer,
|
|
LayerManager::DrawPaintedLayerCallback aCallback,
|
|
void* aCallbackData) override;
|
|
|
|
void Validate(LayerManager::DrawPaintedLayerCallback aCallback,
|
|
void* aCallbackData, ReadbackProcessor* aReadback) override;
|
|
|
|
void ClearCachedResources() override {
|
|
if (mContentClient) {
|
|
mContentClient->Clear();
|
|
}
|
|
ClearValidRegion();
|
|
}
|
|
|
|
void ComputeEffectiveTransforms(
|
|
const gfx::Matrix4x4& aTransformToSurface) override {
|
|
if (!BasicManager()->IsRetained()) {
|
|
// Don't do any snapping of our transform, since we're just going to
|
|
// draw straight through without intermediate buffers.
|
|
mEffectiveTransform = GetLocalTransform() * aTransformToSurface;
|
|
if (gfxPoint(0, 0) != mResidualTranslation) {
|
|
mResidualTranslation = gfxPoint(0, 0);
|
|
ClearValidRegion();
|
|
}
|
|
ComputeEffectiveTransformForMaskLayers(aTransformToSurface);
|
|
return;
|
|
}
|
|
PaintedLayer::ComputeEffectiveTransforms(aTransformToSurface);
|
|
}
|
|
|
|
BasicLayerManager* BasicManager() {
|
|
return static_cast<BasicLayerManager*>(mManager);
|
|
}
|
|
|
|
protected:
|
|
virtual void PaintBuffer(gfxContext* aContext,
|
|
const nsIntRegion& aRegionToDraw,
|
|
const nsIntRegion& aExtendedRegionToDraw,
|
|
const nsIntRegion& aRegionToInvalidate,
|
|
DrawRegionClip aClip,
|
|
LayerManager::DrawPaintedLayerCallback aCallback,
|
|
void* aCallbackData) {
|
|
if (!aCallback) {
|
|
BasicManager()->SetTransactionIncomplete();
|
|
return;
|
|
}
|
|
aCallback(this, aContext, aExtendedRegionToDraw, aExtendedRegionToDraw,
|
|
aClip, aRegionToInvalidate, aCallbackData);
|
|
// Everything that's visible has been validated. Do this instead of just
|
|
// OR-ing with aRegionToDraw, since that can lead to a very complex region
|
|
// here (OR doesn't automatically simplify to the simplest possible
|
|
// representation of a region.)
|
|
nsIntRegion tmp;
|
|
tmp.Or(mVisibleRegion.ToUnknownRegion(), aExtendedRegionToDraw);
|
|
AddToValidRegion(tmp);
|
|
}
|
|
|
|
RefPtr<ContentClientBasic> mContentClient;
|
|
gfx::BackendType mBackend;
|
|
};
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|
|
|
|
#endif
|