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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 "LayerManagerMLGPU.h"
#include "RenderPassMLGPU.h"
#include "RenderViewMLGPU.h"
#include "FrameBuilder.h"
#include "mozilla/layers/ImageHost.h"
#include "mozilla/layers/LayerManagerComposite.h"
namespace mozilla {
namespace layers {
using namespace gfx;
uint64_t LayerMLGPU::sFrameKey = 0;
LayerMLGPU::~LayerMLGPU() = default;
LayerMLGPU::LayerMLGPU(LayerManagerMLGPU* aManager)
: HostLayer(aManager),
mFrameKey(0),
mComputedOpacity(0.0),
mPrepared(false) {}
/* static */
void LayerMLGPU::BeginFrame() { sFrameKey++; }
LayerManagerMLGPU* LayerMLGPU::GetManager() {
return static_cast<LayerManagerMLGPU*>(mCompositorManager);
}
bool LayerMLGPU::PrepareToRender(FrameBuilder* aBuilder,
const RenderTargetIntRect& aClipRect) {
if (mFrameKey == sFrameKey) {
return mPrepared;
}
mFrameKey = sFrameKey;
mPrepared = false;
Layer* layer = GetLayer();
// Only container layers may have mixed blend modes.
MOZ_ASSERT_IF(layer->GetMixBlendMode() != CompositionOp::OP_OVER,
layer->GetType() == Layer::TYPE_CONTAINER);
mComputedClipRect = aClipRect;
mComputedOpacity = layer->GetEffectiveOpacity();
if (layer->HasMaskLayers()) {
mMask = aBuilder->AddMaskOperation(this);
// If the mask has no texture, the pixel shader can't read any non-zero
// values for the mask, so we can consider the whole thing invisible.
if (mMask && mMask->IsEmpty()) {
mComputedOpacity = 0.0f;
}
} else {
mMask = nullptr;
}
if (!OnPrepareToRender(aBuilder)) {
return false;
}
mPrepared = true;
return true;
}
void LayerMLGPU::AssignToView(FrameBuilder* aBuilder, RenderViewMLGPU* aView,
Maybe<gfx::Polygon>&& aGeometry) {
AddBoundsToView(aBuilder, aView, std::move(aGeometry));
}
void LayerMLGPU::AddBoundsToView(FrameBuilder* aBuilder, RenderViewMLGPU* aView,
Maybe<gfx::Polygon>&& aGeometry) {
IntRect bounds = GetClippedBoundingBox(aView, aGeometry);
aView->AddItem(this, bounds, std::move(aGeometry));
}
IntRect LayerMLGPU::GetClippedBoundingBox(
RenderViewMLGPU* aView, const Maybe<gfx::Polygon>& aGeometry) {
MOZ_ASSERT(IsPrepared());
Layer* layer = GetLayer();
const Matrix4x4& transform = layer->GetEffectiveTransform();
Rect rect =
aGeometry
? aGeometry->BoundingBox()
: Rect(layer->GetLocalVisibleRegion().GetBounds().ToUnknownRect());
rect = transform.TransformBounds(rect);
rect.MoveBy(-aView->GetTargetOffset());
rect = rect.Intersect(Rect(mComputedClipRect.ToUnknownRect()));
IntRect bounds;
rect.RoundOut();
rect.ToIntRect(&bounds);
return bounds;
}
void LayerMLGPU::MarkPrepared() {
mFrameKey = sFrameKey;
mPrepared = true;
}
bool LayerMLGPU::IsContentOpaque() { return GetLayer()->IsOpaque(); }
void LayerMLGPU::SetRenderRegion(LayerIntRegion&& aRegion) {
mRenderRegion = std::move(aRegion);
}
void LayerMLGPU::SetLayerManager(HostLayerManager* aManager) {
LayerManagerMLGPU* manager = aManager->AsLayerManagerMLGPU();
MOZ_RELEASE_ASSERT(manager);
HostLayer::SetLayerManager(aManager);
GetLayer()->SetManager(manager, this);
if (CompositableHost* host = GetCompositableHost()) {
host->SetTextureSourceProvider(manager->GetTextureSourceProvider());
}
OnLayerManagerChange(manager);
}
RefLayerMLGPU::RefLayerMLGPU(LayerManagerMLGPU* aManager)
: RefLayer(aManager, static_cast<HostLayer*>(this)), LayerMLGPU(aManager) {}
RefLayerMLGPU::~RefLayerMLGPU() = default;
ColorLayerMLGPU::ColorLayerMLGPU(LayerManagerMLGPU* aManager)
: ColorLayer(aManager, static_cast<HostLayer*>(this)),
LayerMLGPU(aManager) {}
ColorLayerMLGPU::~ColorLayerMLGPU() = default;
} // namespace layers
} // namespace mozilla
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