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1 /*
2  * Copyright 2021 Google LLC
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 MSKPSlide_DEFINED
9 #define MSKPSlide_DEFINED
10 
11 #include "tools/MSKPPlayer.h"
12 #include "tools/viewer/Slide.h"
13 
14 class SkStreamSeekable;
15 
16 class MSKPSlide : public Slide {
17 public:
18     MSKPSlide(const SkString& name, const SkString& path);
19     MSKPSlide(const SkString& name, std::unique_ptr<SkStreamSeekable>);
20 
21     SkISize getDimensions() const override;
22 
23     void draw(SkCanvas* canvas) override;
24     bool animate(double nanos) override;
25     void load(SkScalar winWidth, SkScalar winHeight) override;
26     void unload() override;
27     void gpuTeardown() override;
28 
29 private:
30     // Call if layers need to be redrawn because we've looped playback or UI interaction.
31     void redrawLayers();
32 
33     std::unique_ptr<SkStreamSeekable> fStream;
34     std::unique_ptr<MSKPPlayer>       fPlayer;
35 
36     int    fFrame         = 0;
37     int    fFPS           = 15;
38     bool   fPaused        = false;
39     double fLastFrameTime = -1;
40 
41     bool fShowFrameBounds = false;
42 
43     // Default to transparent black, which is correct for Android MSKPS.
44     float fBackgroundColor[4] = {0, 0, 0, 0};
45 
46     std::vector<int>              fAllLayerIDs;
47     std::vector<std::vector<int>> fFrameLayerIDs;
48     std::vector<SkString>         fLayerIDStrings;
49     int                           fDrawLayerID = -1;  // -1 means just draw the root layer
50     bool                          fListAllLayers = true;
51 
52     using INHERITED = Slide;
53 };
54 
55 #endif
56