64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdlib.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <utils/Log.h>
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#include <ui/GraphicBuffer.h>
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#include "LayerDim.h"
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#include "SurfaceFlinger.h"
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#include "DisplayDevice.h"
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#include "RenderEngine/RenderEngine.h"
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namespace android {
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// ---------------------------------------------------------------------------
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LayerDim::LayerDim(SurfaceFlinger* flinger, const sp<Client>& client,
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const String8& name, uint32_t w, uint32_t h, uint32_t flags)
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: Layer(flinger, client, name, w, h, flags) {
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}
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LayerDim::~LayerDim() {
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}
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void LayerDim::onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const
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{
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const State& s(getDrawingState());
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if (s.alpha>0) {
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Mesh mesh(Mesh::TRIANGLE_FAN, 4, 2);
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computeGeometry(hw, mesh);
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RenderEngine& engine(mFlinger->getRenderEngine());
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engine.setupDimLayerBlending(s.alpha);
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engine.drawMesh(mesh);
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engine.disableBlending();
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}
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}
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bool LayerDim::isVisible() const {
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const Layer::State& s(getDrawingState());
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return !(s.flags & layer_state_t::eLayerHidden) && s.alpha;
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}
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// ---------------------------------------------------------------------------
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}; // namespace android
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