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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 "LayersTypes.h"
#include <cinttypes>
#include "nsPrintfCString.h"
#include "mozilla/gfx/gfxVars.h"
namespace mozilla {
namespace layers {
const char* kCompositionPayloadTypeNames[kCompositionPayloadTypeCount] = {
"KeyPress",
"APZScroll",
"APZPinchZoom",
"ContentPaint",
};
const char* GetLayersBackendName(LayersBackend aBackend) {
switch (aBackend) {
case LayersBackend::LAYERS_NONE:
return "none";
case LayersBackend::LAYERS_OPENGL:
return "opengl";
case LayersBackend::LAYERS_D3D11:
return "d3d11";
case LayersBackend::LAYERS_CLIENT:
return "client";
case LayersBackend::LAYERS_WR:
MOZ_ASSERT(gfx::gfxVars::UseWebRender());
if (gfx::gfxVars::UseSoftwareWebRender()) {
return "webrender_software";
}
return "webrender";
case LayersBackend::LAYERS_BASIC:
return "basic";
default:
MOZ_ASSERT_UNREACHABLE("unknown layers backend");
return "unknown";
}
}
std::ostream& operator<<(std::ostream& aStream, const LayersId& aId) {
return aStream << nsPrintfCString("0x%" PRIx64, aId.mId).get();
}
EventRegions::EventRegions() : mDTCRequiresTargetConfirmation(false) {}
EventRegions::EventRegions(nsIntRegion aHitRegion)
: mHitRegion(aHitRegion), mDTCRequiresTargetConfirmation(false) {}
EventRegions::EventRegions(const nsIntRegion& aHitRegion,
const nsIntRegion& aMaybeHitRegion,
const nsIntRegion& aDispatchToContentRegion,
const nsIntRegion& aNoActionRegion,
const nsIntRegion& aHorizontalPanRegion,
const nsIntRegion& aVerticalPanRegion,
bool aDTCRequiresTargetConfirmation) {
mHitRegion = aHitRegion;
mNoActionRegion = aNoActionRegion;
mHorizontalPanRegion = aHorizontalPanRegion;
mVerticalPanRegion = aVerticalPanRegion;
// Points whose hit-region status we're not sure about need to be dispatched
// to the content thread. If a point is in both maybeHitRegion and hitRegion
// then it's not a "maybe" any more, and doesn't go into the dispatch-to-
// content region.
mDispatchToContentHitRegion.Sub(aMaybeHitRegion, mHitRegion);
mDispatchToContentHitRegion.OrWith(aDispatchToContentRegion);
mHitRegion.OrWith(aMaybeHitRegion);
mDTCRequiresTargetConfirmation = aDTCRequiresTargetConfirmation;
}
bool EventRegions::operator==(const EventRegions& aRegions) const {
return mHitRegion == aRegions.mHitRegion &&
mDispatchToContentHitRegion == aRegions.mDispatchToContentHitRegion &&
mNoActionRegion == aRegions.mNoActionRegion &&
mHorizontalPanRegion == aRegions.mHorizontalPanRegion &&
mVerticalPanRegion == aRegions.mVerticalPanRegion &&
mDTCRequiresTargetConfirmation ==
aRegions.mDTCRequiresTargetConfirmation;
}
bool EventRegions::operator!=(const EventRegions& aRegions) const {
return !(*this == aRegions);
}
std::ostream& operator<<(std::ostream& aStream, const EventRegions& e) {
aStream << "{";
if (!e.mHitRegion.IsEmpty()) {
aStream << " Hit=" << e.mHitRegion;
}
if (!e.mDispatchToContentHitRegion.IsEmpty()) {
aStream << " DispatchToContent=" << e.mDispatchToContentHitRegion;
}
if (!e.mNoActionRegion.IsEmpty()) {
aStream << " NoAction=" << e.mNoActionRegion;
}
if (!e.mHorizontalPanRegion.IsEmpty()) {
aStream << " HorizontalPan=" << e.mHorizontalPanRegion;
}
if (!e.mVerticalPanRegion.IsEmpty()) {
aStream << " VerticalPan=" << e.mVerticalPanRegion;
}
aStream << " }";
return aStream;
}
void EventRegions::ApplyTranslationAndScale(float aXTrans, float aYTrans,
float aXScale, float aYScale) {
mHitRegion.ScaleRoundOut(aXScale, aYScale);
mDispatchToContentHitRegion.ScaleRoundOut(aXScale, aYScale);
mNoActionRegion.ScaleRoundOut(aXScale, aYScale);
mHorizontalPanRegion.ScaleRoundOut(aXScale, aYScale);
mVerticalPanRegion.ScaleRoundOut(aXScale, aYScale);
mHitRegion.MoveBy(aXTrans, aYTrans);
mDispatchToContentHitRegion.MoveBy(aXTrans, aYTrans);
mNoActionRegion.MoveBy(aXTrans, aYTrans);
mHorizontalPanRegion.MoveBy(aXTrans, aYTrans);
mVerticalPanRegion.MoveBy(aXTrans, aYTrans);
}
void EventRegions::Transform(const gfx::Matrix4x4& aTransform) {
mHitRegion.Transform(aTransform);
mDispatchToContentHitRegion.Transform(aTransform);
mNoActionRegion.Transform(aTransform);
mHorizontalPanRegion.Transform(aTransform);
mVerticalPanRegion.Transform(aTransform);
}
void EventRegions::OrWith(const EventRegions& aOther) {
mHitRegion.OrWith(aOther.mHitRegion);
mDispatchToContentHitRegion.OrWith(aOther.mDispatchToContentHitRegion);
// See the comment in nsDisplayList::AddFrame, where the touch action
// regions are handled. The same thing applies here.
bool alreadyHadRegions = !mNoActionRegion.IsEmpty() ||
!mHorizontalPanRegion.IsEmpty() ||
!mVerticalPanRegion.IsEmpty();
mNoActionRegion.OrWith(aOther.mNoActionRegion);
mHorizontalPanRegion.OrWith(aOther.mHorizontalPanRegion);
mVerticalPanRegion.OrWith(aOther.mVerticalPanRegion);
if (alreadyHadRegions) {
nsIntRegion combinedActionRegions;
combinedActionRegions.Or(mHorizontalPanRegion, mVerticalPanRegion);
combinedActionRegions.OrWith(mNoActionRegion);
mDispatchToContentHitRegion.OrWith(combinedActionRegions);
}
mDTCRequiresTargetConfirmation |= aOther.mDTCRequiresTargetConfirmation;
}
bool EventRegions::IsEmpty() const {
return mHitRegion.IsEmpty() && mDispatchToContentHitRegion.IsEmpty() &&
mNoActionRegion.IsEmpty() && mHorizontalPanRegion.IsEmpty() &&
mVerticalPanRegion.IsEmpty();
}
void EventRegions::SetEmpty() {
mHitRegion.SetEmpty();
mDispatchToContentHitRegion.SetEmpty();
mNoActionRegion.SetEmpty();
mHorizontalPanRegion.SetEmpty();
mVerticalPanRegion.SetEmpty();
}
} // namespace layers
} // namespace mozilla
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