mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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160 lines
4.1 KiB
C++
160 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gfxSharedImageSurface.h"
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#include "ipc/AutoOpenSurface.h"
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#include "ImageLayerComposite.h"
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#include "ImageHost.h"
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#include "gfxImageSurface.h"
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#include "gfx2DGlue.h"
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#include "gfxUtils.h"
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#include "mozilla/layers/Compositor.h"
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#include "mozilla/layers/CompositorTypes.h" // for TextureInfo
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#include "mozilla/layers/Effects.h"
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#include "CompositableHost.h"
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using namespace mozilla::gfx;
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namespace mozilla {
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namespace layers {
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ImageLayerComposite::ImageLayerComposite(LayerManagerComposite* aManager)
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: ImageLayer(aManager, nullptr)
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, LayerComposite(aManager)
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, mImageHost(nullptr)
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{
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MOZ_COUNT_CTOR(ImageLayerComposite);
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mImplData = static_cast<LayerComposite*>(this);
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}
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ImageLayerComposite::~ImageLayerComposite()
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{
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MOZ_COUNT_DTOR(ImageLayerComposite);
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MOZ_ASSERT(mDestroyed);
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CleanupResources();
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}
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void
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ImageLayerComposite::SetCompositableHost(CompositableHost* aHost)
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{
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mImageHost = static_cast<ImageHost*>(aHost);
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}
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void
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ImageLayerComposite::Disconnect()
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{
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Destroy();
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}
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LayerRenderState
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ImageLayerComposite::GetRenderState()
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{
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if (mImageHost) {
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return mImageHost->GetRenderState();
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}
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return LayerRenderState();
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}
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Layer*
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ImageLayerComposite::GetLayer()
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{
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return this;
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}
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void
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ImageLayerComposite::RenderLayer(const nsIntPoint& aOffset,
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const nsIntRect& aClipRect)
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{
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if (!mImageHost) {
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return;
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}
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#ifdef MOZ_DUMP_PAINTING
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if (gfxUtils::sDumpPainting) {
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nsRefPtr<gfxImageSurface> surf = mImageHost->GetAsSurface();
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WriteSnapshotToDumpFile(this, surf);
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}
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#endif
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mCompositor->MakeCurrent();
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EffectChain effectChain;
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LayerManagerComposite::AddMaskEffect(mMaskLayer, effectChain);
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gfx::Matrix4x4 transform;
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ToMatrix4x4(GetEffectiveTransform(), transform);
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gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height);
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mImageHost->SetCompositor(mCompositor);
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mImageHost->Composite(effectChain,
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GetEffectiveOpacity(),
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transform,
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gfx::Point(aOffset.x, aOffset.y),
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gfx::ToFilter(mFilter),
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clipRect);
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}
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void
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ImageLayerComposite::ComputeEffectiveTransforms(const gfx3DMatrix& aTransformToSurface)
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{
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gfx3DMatrix local = GetLocalTransform();
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// Snap image edges to pixel boundaries
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gfxRect sourceRect(0, 0, 0, 0);
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if (mImageHost && mImageHost->GetTextureHost()) {
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IntSize size = mImageHost->GetTextureHost()->GetSize();
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sourceRect.SizeTo(size.width, size.height);
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if (mScaleMode != SCALE_NONE &&
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sourceRect.width != 0.0 && sourceRect.height != 0.0) {
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NS_ASSERTION(mScaleMode == SCALE_STRETCH,
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"No other scalemodes than stretch and none supported yet.");
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local.Scale(mScaleToSize.width / sourceRect.width,
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mScaleToSize.height / sourceRect.height, 1.0);
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}
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}
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// Snap our local transform first, and snap the inherited transform as well.
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// This makes our snapping equivalent to what would happen if our content
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// was drawn into a ThebesLayer (gfxContext would snap using the local
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// transform, then we'd snap again when compositing the ThebesLayer).
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mEffectiveTransform =
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SnapTransform(local, sourceRect, nullptr) *
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SnapTransformTranslation(aTransformToSurface, nullptr);
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ComputeEffectiveTransformForMaskLayer(aTransformToSurface);
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}
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CompositableHost*
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ImageLayerComposite::GetCompositableHost() {
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return mImageHost.get();
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}
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void
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ImageLayerComposite::CleanupResources()
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{
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if (mImageHost) {
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mImageHost->Detach();
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}
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mImageHost = nullptr;
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}
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#ifdef MOZ_LAYERS_HAVE_LOG
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nsACString&
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ImageLayerComposite::PrintInfo(nsACString& aTo, const char* aPrefix)
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{
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ImageLayer::PrintInfo(aTo, aPrefix);
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aTo += "\n";
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if (mImageHost) {
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nsAutoCString pfx(aPrefix);
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pfx += " ";
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mImageHost->PrintInfo(aTo, pfx.get());
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}
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return aTo;
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}
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#endif
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} /* layers */
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} /* mozilla */
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