1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_LAYER_DIM_H
18#define ANDROID_LAYER_DIM_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include "LayerBase.h"
24#include "LayerBitmap.h"
25
26namespace android {
27
28// ---------------------------------------------------------------------------
29
30class LayerDim : public LayerBaseClient
31{
32public:
33    static const uint32_t typeInfo;
34    static const char* const typeID;
35    virtual char const* getTypeID() const { return typeID; }
36    virtual uint32_t getTypeInfo() const { return typeInfo; }
37
38                LayerDim(SurfaceFlinger* flinger, DisplayID display,
39                        Client* client, int32_t i);
40        virtual ~LayerDim();
41
42    virtual void onDraw(const Region& clip) const;
43    virtual bool needsBlending() const  { return true; }
44    virtual bool isSecure() const       { return false; }
45
46    static void initDimmer(SurfaceFlinger* flinger, uint32_t w, uint32_t h);
47
48private:
49    static sp<MemoryDealer> mDimmerDealer;
50    static LayerBitmap mDimmerBitmap;
51};
52
53// ---------------------------------------------------------------------------
54
55}; // namespace android
56
57#endif // ANDROID_LAYER_DIM_H
58