aboutsummaryrefslogtreecommitdiffhomepage
path: root/gm/gm.h
blob: 6e34d3dedeccc86d30bd844e62ce47ef4d1bf29f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109

/*
 * Copyright 2011 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
#ifndef skiagm_DEFINED
#define skiagm_DEFINED

#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkDevice.h"
#include "SkPaint.h"
#include "SkSize.h"
#include "SkString.h"
#include "SkTRegistry.h"

#define DEF_GM(code) \
    static skiagm::GM*          SK_MACRO_APPEND_LINE(F_)(void*) { code; } \
    static skiagm::GMRegistry   SK_MACRO_APPEND_LINE(R_)(SK_MACRO_APPEND_LINE(F_));

namespace skiagm {

    static inline SkISize make_isize(int w, int h) {
        SkISize sz;
        sz.set(w, h);
        return sz;
    }

    class GM {
    public:
        GM();
        virtual ~GM();

        enum Flags {
            kSkipPDF_Flag           = 1 << 0,
            kSkipPicture_Flag       = 1 << 1,
            kSkipPipe_Flag          = 1 << 2,
            kSkipTiled_Flag         = 1 << 3,
            kSkip565_Flag           = 1 << 4,
            kSkipScaledReplay_Flag  = 1 << 5,
            kSkipGPU_Flag           = 1 << 6,
        };

        void draw(SkCanvas*);
        void drawBackground(SkCanvas*);
        void drawContent(SkCanvas*);

        SkISize getISize() { return this->onISize(); }
        const char* shortName();

        uint32_t getFlags() const {
            return this->onGetFlags();
        }

        SkScalar width() {
            return SkIntToScalar(this->getISize().width());
        }
        SkScalar height() {
            return SkIntToScalar(this->getISize().height());
        }

        // TODO(vandebo) Instead of exposing this, we should run all the GMs
        // with and without an initial transform.
        // Most GMs will return the identity matrix, but some PDFs tests
        // require setting the initial transform.
        SkMatrix getInitialTransform() const {
            return this->onGetInitialTransform();
        }

        SkColor getBGColor() const { return fBGColor; }
        void setBGColor(SkColor);

        // helper: fill a rect in the specified color based on the
        // GM's getISize bounds.
        void drawSizeBounds(SkCanvas*, SkColor);

        static void SetResourcePath(const char* resourcePath) {
            gResourcePath = resourcePath;
        }

        bool isCanvasDeferred() const { return fCanvasIsDeferred; }
        void setCanvasIsDeferred(bool isDeferred) {
            fCanvasIsDeferred = isDeferred;
        }

    protected:
        static SkString gResourcePath;

        virtual void onOnceBeforeDraw() {}
        virtual void onDraw(SkCanvas*) = 0;
        virtual void onDrawBackground(SkCanvas*);
        virtual SkISize onISize() = 0;
        virtual SkString onShortName() = 0;
        virtual uint32_t onGetFlags() const { return 0; }
        virtual SkMatrix onGetInitialTransform() const { return SkMatrix::I(); }

    private:
        SkString fShortName;
        SkColor  fBGColor;
        bool     fCanvasIsDeferred; // work-around problem in srcmode.cpp
        bool     fHaveCalledOnceBeforeDraw;
    };

    typedef SkTRegistry<GM*, void*> GMRegistry;
}

#endif