1/*
2 * Copyright 2012 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#include "gm.h"
9#include "SkCanvas.h"
10#include "SkGradientShader.h"
11#include "SkPath.h"
12
13static void make_bm(SkBitmap* bm, int width, int height, SkColor colors[2]) {
14    bm->allocN32Pixels(width, height);
15    SkCanvas canvas(*bm);
16    SkPoint center = {SkIntToScalar(width)/2, SkIntToScalar(height)/2};
17    SkScalar radius = 40;
18    SkShader* shader = SkGradientShader::CreateRadial(center, radius, colors, NULL, 2,
19                                                      SkShader::kMirror_TileMode);
20    SkPaint paint;
21    paint.setShader(shader)->unref();
22    paint.setXfermodeMode(SkXfermode::kSrc_Mode);
23    canvas.drawPaint(paint);
24    bm->setImmutable();
25}
26
27static void show_bm(SkCanvas* canvas, int width, int height, SkColor colors[2]) {
28    SkBitmap bm;
29    make_bm(&bm, width, height, colors);
30
31    SkPaint paint;
32    SkRect r;
33    SkIRect ir;
34
35    paint.setStyle(SkPaint::kStroke_Style);
36
37    ir.set(0, 0, 128, 128);
38    r.set(ir);
39
40    canvas->save();
41    canvas->clipRect(r);
42    canvas->drawBitmap(bm, 0, 0, NULL);
43    canvas->restore();
44    canvas->drawRect(r, paint);
45
46    r.offset(SkIntToScalar(150), 0);
47    // exercises extract bitmap, but not shader
48    canvas->drawBitmapRect(bm, &ir, r, NULL);
49    canvas->drawRect(r, paint);
50
51    r.offset(SkIntToScalar(150), 0);
52    // exercises bitmapshader
53    canvas->drawBitmapRect(bm, NULL, r, NULL);
54    canvas->drawRect(r, paint);
55}
56
57class VeryLargeBitmapGM : public skiagm::GM {
58public:
59    VeryLargeBitmapGM() {}
60
61protected:
62    virtual SkString onShortName() SK_OVERRIDE {
63        return SkString("verylargebitmap");
64    }
65
66    virtual SkISize onISize() SK_OVERRIDE {
67        return SkISize::Make(500, 600);
68    }
69
70    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
71        int veryBig = 65*1024; // 64K < size
72        int big = 33*1024;     // 32K < size < 64K
73        // smaller than many max texture sizes, but large enough to gpu-tile for memory reasons.
74        int medium = 5*1024;
75        int small = 150;
76
77        SkColor colors[2];
78
79        canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
80        colors[0] = SK_ColorRED;
81        colors[1] = SK_ColorGREEN;
82        show_bm(canvas, small, small, colors);
83        canvas->translate(0, SkIntToScalar(150));
84
85        colors[0] = SK_ColorBLUE;
86        colors[1] = SK_ColorMAGENTA;
87        show_bm(canvas, big, small, colors);
88        canvas->translate(0, SkIntToScalar(150));
89
90        colors[0] = SK_ColorMAGENTA;
91        colors[1] = SK_ColorYELLOW;
92        show_bm(canvas, medium, medium, colors);
93        canvas->translate(0, SkIntToScalar(150));
94
95        colors[0] = SK_ColorGREEN;
96        colors[1] = SK_ColorYELLOW;
97        // as of this writing, the raster code will fail to draw the scaled version
98        // since it has a 64K limit on x,y coordinates... (but gpu should succeed)
99        show_bm(canvas, veryBig, small, colors);
100    }
101
102#ifdef SK_BUILD_FOR_WIN32
103    virtual uint32_t onGetFlags() const {
104        // The Windows bot runs out of memory in replay modes on this test in 32bit builds:
105        // http://skbug.com/1756
106        return kSkipPicture_Flag            |
107               kSkipPipe_Flag               |
108               kSkipPipeCrossProcess_Flag   |
109               kSkipTiled_Flag              |
110               kSkipScaledReplay_Flag;
111    }
112#endif
113
114private:
115    typedef skiagm::GM INHERITED;
116};
117
118//////////////////////////////////////////////////////////////////////////////
119
120static skiagm::GM* MyFactory(void*) { return new VeryLargeBitmapGM; }
121static skiagm::GMRegistry reg(MyFactory);
122