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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 "CanvasLayerMLGPU.h"
#include "composite/CompositableHost.h" // for CompositableHost
#include "gfx2DGlue.h" // for ToFilter
#include "gfxEnv.h" // for gfxEnv, etc
#include "mozilla/gfx/Matrix.h" // for Matrix4x4
#include "mozilla/gfx/Point.h" // for Point
#include "mozilla/gfx/Rect.h" // for Rect
#include "mozilla/layers/Compositor.h" // for Compositor
#include "mozilla/layers/Effects.h" // for EffectChain
#include "mozilla/layers/ImageHost.h"
#include "mozilla/mozalloc.h" // for operator delete
#include "nsAString.h"
#include "mozilla/RefPtr.h" // for nsRefPtr
#include "MaskOperation.h"
#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
#include "nsString.h" // for nsAutoCString
namespace mozilla {
namespace layers {
using namespace mozilla::gfx;
CanvasLayerMLGPU::CanvasLayerMLGPU(LayerManagerMLGPU* aManager)
: CanvasLayer(aManager, nullptr), TexturedLayerMLGPU(aManager) {}
CanvasLayerMLGPU::~CanvasLayerMLGPU() { CleanupResources(); }
Layer* CanvasLayerMLGPU::GetLayer() { return this; }
gfx::SamplingFilter CanvasLayerMLGPU::GetSamplingFilter() {
gfx::SamplingFilter filter = mSamplingFilter;
#ifdef ANDROID
// Bug 691354
// Using the LINEAR filter we get unexplained artifacts.
// Use NEAREST when no scaling is required.
Matrix matrix;
bool is2D = GetEffectiveTransform().Is2D(&matrix);
if (is2D && !ThebesMatrix(matrix).HasNonTranslationOrFlip()) {
filter = SamplingFilter::POINT;
}
#endif
return filter;
}
void CanvasLayerMLGPU::PrintInfo(std::stringstream& aStream,
const char* aPrefix) {
CanvasLayer::PrintInfo(aStream, aPrefix);
aStream << "\n";
if (mHost && mHost->IsAttached()) {
nsAutoCString pfx(aPrefix);
pfx += " ";
mHost->PrintInfo(aStream, pfx.get());
}
}
void CanvasLayerMLGPU::CleanupResources() {
if (mHost) {
mHost->Detach(this);
}
mTexture = nullptr;
mBigImageTexture = nullptr;
mHost = nullptr;
}
void CanvasLayerMLGPU::Disconnect() { CleanupResources(); }
void CanvasLayerMLGPU::ClearCachedResources() { CleanupResources(); }
void CanvasLayerMLGPU::SetRenderRegion(LayerIntRegion&& aRegion) {
aRegion.AndWith(LayerIntRect::FromUnknownRect(mPictureRect));
LayerMLGPU::SetRenderRegion(std::move(aRegion));
}
} // namespace layers
} // namespace mozilla
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