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 PREVIEW_RENDERER_H_
18
19#define PREVIEW_RENDERER_H_
20
21#include <media/stagefright/ColorConverter.h>
22#include <utils/RefBase.h>
23#include <system/window.h>
24#include <ui/GraphicBufferMapper.h>
25
26
27namespace android {
28
29class Surface;
30
31class PreviewRenderer {
32public:
33
34static PreviewRenderer* CreatePreviewRenderer (
35        const sp<Surface> &surface,
36        size_t width, size_t height);
37
38    ~PreviewRenderer();
39
40    void getBufferYV12(uint8_t **data, size_t *stride);
41
42    void renderYV12();
43
44    static size_t ALIGN(size_t x, size_t alignment) {
45        return (x + alignment - 1) & ~(alignment - 1);
46    }
47
48private:
49    PreviewRenderer(
50            const sp<Surface> &surface,
51            size_t width, size_t height);
52
53    int init();
54
55    sp<Surface> mSurface;
56    size_t mWidth, mHeight;
57
58    ANativeWindowBuffer *mBuf;
59
60    PreviewRenderer(const PreviewRenderer &);
61    PreviewRenderer &operator=(const PreviewRenderer &);
62};
63
64}  // namespace android
65
66#endif  // PREVIEW_RENDERER_H_
67