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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /gfx/layers/basic/BasicPaintedLayer.cpp
parentInitial commit. (diff)
downloadfirefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz
firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/layers/basic/BasicPaintedLayer.cpp')
-rw-r--r--gfx/layers/basic/BasicPaintedLayer.cpp239
1 files changed, 239 insertions, 0 deletions
diff --git a/gfx/layers/basic/BasicPaintedLayer.cpp b/gfx/layers/basic/BasicPaintedLayer.cpp
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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 "BasicPaintedLayer.h"
+#include <stdint.h> // for uint32_t
+#include "GeckoProfiler.h" // for AUTO_PROFILER_LABEL
+#include "ReadbackLayer.h" // for ReadbackLayer, ReadbackSink
+#include "ReadbackProcessor.h" // for ReadbackProcessor::Update, etc
+#include "RenderTrace.h" // for RenderTraceInvalidateEnd, etc
+#include "BasicLayersImpl.h" // for AutoMaskData, etc
+#include "gfxContext.h" // for gfxContext, etc
+#include "gfxRect.h" // for gfxRect
+#include "gfxUtils.h" // for gfxUtils
+#include "mozilla/gfx/2D.h" // for DrawTarget
+#include "mozilla/gfx/BaseRect.h" // for BaseRect
+#include "mozilla/gfx/Matrix.h" // for Matrix
+#include "mozilla/gfx/Rect.h" // for Rect, IntRect
+#include "mozilla/gfx/Types.h" // for Float, etc
+#include "mozilla/layers/LayersTypes.h"
+#include "nsCOMPtr.h" // for already_AddRefed
+#include "nsISupportsImpl.h" // for gfxContext::Release, etc
+#include "nsPoint.h" // for nsIntPoint
+#include "nsRect.h" // for mozilla::gfx::IntRect
+#include "nsTArray.h" // for nsTArray, nsTArray_Impl
+#include "AutoMaskData.h"
+#include "gfx2DGlue.h"
+
+namespace mozilla {
+namespace layers {
+
+using namespace mozilla::gfx;
+
+static nsIntRegion IntersectWithClip(const nsIntRegion& aRegion,
+ gfxContext* aContext) {
+ gfxRect clip = aContext->GetClipExtents();
+ nsIntRegion result;
+ result.And(aRegion, IntRect::RoundOut(clip.X(), clip.Y(), clip.Width(),
+ clip.Height()));
+ return result;
+}
+
+void BasicPaintedLayer::PaintThebes(
+ gfxContext* aContext, Layer* aMaskLayer,
+ LayerManager::DrawPaintedLayerCallback aCallback, void* aCallbackData) {
+ AUTO_PROFILER_LABEL("BasicPaintedLayer::PaintThebes", GRAPHICS);
+
+ NS_ASSERTION(BasicManager()->InDrawing(), "Can only draw in drawing phase");
+
+ float opacity = GetEffectiveOpacity();
+ CompositionOp effectiveOperator = GetEffectiveOperator(this);
+
+ if (!BasicManager()->IsRetained()) {
+ ClearValidRegion();
+ mContentClient->Clear();
+
+ nsIntRegion toDraw =
+ IntersectWithClip(GetLocalVisibleRegion().ToUnknownRegion(), aContext);
+
+ RenderTraceInvalidateStart(this, "FFFF00", toDraw.GetBounds());
+
+ if (!toDraw.IsEmpty() && !IsHidden()) {
+ if (!aCallback) {
+ BasicManager()->SetTransactionIncomplete();
+ return;
+ }
+
+ aContext->Save();
+
+ bool needsGroup = opacity != 1.0 ||
+ effectiveOperator != CompositionOp::OP_OVER ||
+ aMaskLayer;
+ RefPtr<gfxContext> context = nullptr;
+ BasicLayerManager::PushedGroup group;
+ bool availableGroup = false;
+
+ if (needsGroup) {
+ availableGroup =
+ BasicManager()->PushGroupForLayer(aContext, this, toDraw, group);
+ if (availableGroup) {
+ context = group.mGroupTarget;
+ }
+ } else {
+ context = aContext;
+ }
+ if (context) {
+ DrawTarget* target = context->GetDrawTarget();
+ bool oldAA = target->GetPermitSubpixelAA();
+ SetAntialiasingFlags(this, target);
+ aCallback(this, context, toDraw, toDraw, DrawRegionClip::NONE,
+ nsIntRegion(), aCallbackData);
+ target->SetPermitSubpixelAA(oldAA);
+ }
+ if (needsGroup && availableGroup) {
+ BasicManager()->PopGroupForLayer(group);
+ }
+
+ aContext->Restore();
+ }
+
+ RenderTraceInvalidateEnd(this, "FFFF00");
+ return;
+ }
+
+ if (BasicManager()->IsTransactionIncomplete()) return;
+
+ gfxRect clipExtents;
+ clipExtents = aContext->GetClipExtents();
+
+ // Pull out the mask surface and transform here, because the mask
+ // is internal to basic layers
+ AutoMoz2DMaskData mask;
+ SourceSurface* maskSurface = nullptr;
+ Matrix maskTransform;
+ if (GetMaskData(aMaskLayer, aContext->GetDeviceOffset(), &mask)) {
+ maskSurface = mask.GetSurface();
+ maskTransform = mask.GetTransform();
+ }
+
+ if (!IsHidden() && !clipExtents.IsEmpty()) {
+ mContentClient->DrawTo(this, aContext->GetDrawTarget(), opacity,
+ effectiveOperator, maskSurface, &maskTransform);
+ }
+}
+
+void BasicPaintedLayer::Validate(
+ LayerManager::DrawPaintedLayerCallback aCallback, void* aCallbackData,
+ ReadbackProcessor* aReadback) {
+ if (!mContentClient) {
+ // This client will have a null Forwarder, which means it will not have
+ // a ContentHost on the other side.
+ mContentClient = new ContentClientBasic(mBackend);
+ }
+
+ if (!BasicManager()->IsRetained()) {
+ return;
+ }
+
+ nsTArray<ReadbackProcessor::Update> readbackUpdates;
+ if (aReadback && UsedForReadback()) {
+ aReadback->GetPaintedLayerUpdates(this, &readbackUpdates);
+ }
+
+ uint32_t flags = 0;
+#ifndef MOZ_WIDGET_ANDROID
+ if (BasicManager()->CompositorMightResample()) {
+ flags |= ContentClient::PAINT_WILL_RESAMPLE;
+ }
+ if (!(flags & ContentClient::PAINT_WILL_RESAMPLE)) {
+ if (MayResample()) {
+ flags |= ContentClient::PAINT_WILL_RESAMPLE;
+ }
+ }
+#endif
+ if (mDrawAtomically) {
+ flags |= ContentClient::PAINT_NO_ROTATION;
+ }
+ PaintState state = mContentClient->BeginPaint(this, flags);
+ SubtractFromValidRegion(state.mRegionToInvalidate);
+
+ DrawTarget* target = mContentClient->BorrowDrawTargetForPainting(state);
+ if (target && target->IsValid()) {
+ // The area that became invalid and is visible needs to be repainted
+ // (this could be the whole visible area if our buffer switched
+ // from RGB to RGBA, because we might need to repaint with
+ // subpixel AA)
+ state.mRegionToInvalidate.And(state.mRegionToInvalidate,
+ GetLocalVisibleRegion().ToUnknownRegion());
+ SetAntialiasingFlags(this, target);
+
+ RenderTraceInvalidateStart(this, "FFFF00", state.mRegionToDraw.GetBounds());
+
+ RefPtr<gfxContext> ctx =
+ gfxContext::CreatePreservingTransformOrNull(target);
+ MOZ_ASSERT(ctx); // already checked the target above
+
+ PaintBuffer(ctx, state.mRegionToDraw, state.mRegionToDraw,
+ state.mRegionToInvalidate, state.mClip, aCallback,
+ aCallbackData);
+ MOZ_LAYERS_LOG_IF_SHADOWABLE(this,
+ ("Layer::Mutated(%p) PaintThebes", this));
+ Mutated();
+ ctx = nullptr;
+ mContentClient->ReturnDrawTarget(target);
+ target = nullptr;
+
+ RenderTraceInvalidateEnd(this, "FFFF00");
+ } else {
+ if (target) {
+ mContentClient->ReturnDrawTarget(target);
+ target = nullptr;
+ }
+
+ // It's possible that state.mRegionToInvalidate is nonempty here,
+ // if we are shrinking the valid region to nothing. So use mRegionToDraw
+ // instead.
+ NS_WARNING_ASSERTION(
+ state.mRegionToDraw.IsEmpty(),
+ "No context when we have something to draw, resource exhaustion?");
+ }
+
+ for (uint32_t i = 0; i < readbackUpdates.Length(); ++i) {
+ ReadbackProcessor::Update& update = readbackUpdates[i];
+ nsIntPoint offset = update.mLayer->GetBackgroundLayerOffset();
+ RefPtr<DrawTarget> dt = update.mLayer->GetSink()->BeginUpdate(
+ update.mUpdateRect + offset, update.mSequenceCounter);
+ if (dt) {
+ NS_ASSERTION(GetEffectiveOpacity() == 1.0,
+ "Should only read back opaque layers");
+ NS_ASSERTION(!GetMaskLayer(),
+ "Should only read back layers without masks");
+ dt->SetTransform(dt->GetTransform().PreTranslate(offset.x, offset.y));
+ mContentClient->DrawTo(this, dt, 1.0, CompositionOp::OP_OVER, nullptr,
+ nullptr);
+ update.mLayer->GetSink()->EndUpdate(update.mUpdateRect + offset);
+ }
+ }
+}
+
+already_AddRefed<PaintedLayer> BasicLayerManager::CreatePaintedLayer() {
+ NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
+
+ BackendType backend = gfxPlatform::GetPlatform()->GetDefaultContentBackend();
+
+ if (mDefaultTarget) {
+ backend = mDefaultTarget->GetDrawTarget()->GetBackendType();
+ } else if (mType == BLM_WIDGET) {
+ backend = gfxPlatform::GetPlatform()->GetContentBackendFor(
+ LayersBackend::LAYERS_BASIC);
+ }
+
+ RefPtr<PaintedLayer> layer = new BasicPaintedLayer(this, backend);
+ return layer.forget();
+}
+
+} // namespace layers
+} // namespace mozilla