1/*
2 * Copyright 2017 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkAndroidFrameworkUtils_DEFINED
9#define SkAndroidFrameworkUtils_DEFINED
10
11#include "include/core/SkRefCnt.h"
12#include "include/core/SkTypes.h"
13
14#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
15
16class SkCanvas;
17struct SkRect;
18class SkSurface;
19
20/**
21 * SkAndroidFrameworkUtils expose private APIs used only by Android framework.
22 */
23class SkAndroidFrameworkUtils {
24public:
25
26#if SK_SUPPORT_GPU
27 /**
28 * clipWithStencil draws the current clip into a stencil buffer with reference value and mask
29 * set to 0x1. This function works only on a GPU canvas.
30 *
31 * @param canvas A GPU canvas that has a non-empty clip.
32 *
33 * @return true on success or false if clip is empty or not a GPU canvas.
34 */
35 static bool clipWithStencil(SkCanvas* canvas);
36#endif //SK_SUPPORT_GPU
37
38 static void SafetyNetLog(const char*);
39
40 static sk_sp<SkSurface> getSurfaceFromCanvas(SkCanvas* canvas);
41
42 static int SaveBehind(SkCanvas* canvas, const SkRect* subset);
43
44 /**
45 * Unrolls a chain of nested SkPaintFilterCanvas to return the base wrapped canvas.
46 *
47 * @param canvas A SkPaintFilterCanvas or any other SkCanvas subclass.
48 *
49 * @return SkCanvas that was found in the innermost SkPaintFilterCanvas.
50 */
51 static SkCanvas* getBaseWrappedCanvas(SkCanvas* canvas);
52};
53
54#endif // SK_BUILD_FOR_ANDROID_ANDROID
55
56#endif // SkAndroidFrameworkUtils_DEFINED
57