LayerScreenshot.h revision 3ee454a7bef8bd3d1c9cdd9d17108eb80ebadf2a 
1/*
2 * Copyright (C) 2011 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_SCREENSHOT_H
18#define ANDROID_LAYER_SCREENSHOT_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <EGL/egl.h>
24#include <EGL/eglext.h>
25
26#include "LayerBase.h"
27
28// ---------------------------------------------------------------------------
29
30namespace android {
31
32class LayerScreenshot : public LayerBaseClient
33{
34    GLuint mTextureName;
35    GLfloat mTexCoords[8];
36    sp<SurfaceFlinger> mFlinger;
37public:
38            LayerScreenshot(SurfaceFlinger* flinger, const sp<Client>& client);
39        virtual ~LayerScreenshot();
40
41        status_t capture();
42
43    virtual void initStates(uint32_t w, uint32_t h, uint32_t flags);
44    virtual uint32_t doTransaction(uint32_t flags);
45    virtual void onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const;
46    virtual bool isOpaque() const         { return false; }
47    virtual bool isSecure() const         { return false; }
48    virtual bool isProtectedByApp() const { return false; }
49    virtual bool isProtectedByDRM() const { return false; }
50    virtual const char* getTypeId() const { return "LayerScreenshot"; }
51
52private:
53    status_t captureLocked(int32_t layerStack);
54    void initTexture(GLfloat u, GLfloat v);
55};
56
57// ---------------------------------------------------------------------------
58
59}; // namespace android
60
61#endif // ANDROID_LAYER_SCREENSHOT_H
62