1/*
2 * Copyright (C) 2010 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_HWUI_GAMMA_FONT_RENDERER_H
18#define ANDROID_HWUI_GAMMA_FONT_RENDERER_H
19
20#include "FontRenderer.h"
21
22namespace android {
23namespace uirenderer {
24
25class GammaFontRenderer {
26public:
27    GammaFontRenderer();
28
29    void clear() {
30        mRenderer.reset(nullptr);
31    }
32
33    void flush() {
34        if (mRenderer) {
35            mRenderer->flushLargeCaches();
36        }
37    }
38
39    FontRenderer& getFontRenderer() {
40        if (!mRenderer) {
41            const uint8_t* table = nullptr;
42#ifndef ANDROID_ENABLE_LINEAR_BLENDING
43            table = &mGammaTable[0];
44#endif
45            mRenderer.reset(new FontRenderer(table));
46        }
47        return *mRenderer;
48    }
49
50    void dumpMemoryUsage(String8& log) const {
51        if (mRenderer) {
52            mRenderer->dumpMemoryUsage(log);
53        } else {
54            log.appendFormat("FontRenderer doesn't exist.\n");
55        }
56    }
57
58    uint32_t getSize() const {
59        return mRenderer ? mRenderer->getSize() : 0;
60    }
61
62    void endPrecaching();
63
64private:
65    std::unique_ptr<FontRenderer> mRenderer;
66#ifndef ANDROID_ENABLE_LINEAR_BLENDING
67    uint8_t mGammaTable[256];
68#endif
69};
70
71}; // namespace uirenderer
72}; // namespace android
73
74#endif // ANDROID_HWUI_GAMMA_FONT_RENDERER_H
75