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/gm.h"
9 #include "include/core/SkBlendMode.h"
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkColor.h"
12 #include "include/core/SkColorSpace.h"
13 #include "include/core/SkImage.h"
14 #include "include/core/SkPaint.h"
15 #include "include/core/SkPicture.h"
16 #include "include/core/SkPictureRecorder.h"
17 #include "include/core/SkPoint.h"
18 #include "include/core/SkRect.h"
19 #include "include/core/SkRefCnt.h"
20 #include "include/core/SkScalar.h"
21 #include "include/core/SkShader.h"
22 #include "include/core/SkSize.h"
23 #include "include/core/SkString.h"
24 #include "include/core/SkSurface.h"
25 #include "include/core/SkTileMode.h"
26 #include "include/effects/SkGradientShader.h"
27
draw(SkCanvas * canvas,int width,int height,SkColor colors[2])28 static void draw(SkCanvas* canvas, int width, int height, SkColor colors[2]) {
29 const SkPoint center = { SkIntToScalar(width)/2, SkIntToScalar(height)/2 };
30 const SkScalar radius = 40;
31 SkPaint paint;
32 paint.setShader(SkGradientShader::MakeRadial(center, radius, colors, nullptr, 2,
33 SkTileMode::kMirror));
34 paint.setBlendMode(SkBlendMode::kSrc);
35 canvas->drawPaint(paint);
36 }
37
make_raster_image(int width,int height,SkColor colors[2])38 static sk_sp<SkImage> make_raster_image(int width, int height, SkColor colors[2]) {
39 auto surface(SkSurface::MakeRasterN32Premul(width, height));
40 draw(surface->getCanvas(), width, height, colors);
41 return surface->makeImageSnapshot();
42 }
43
make_picture_image(int width,int height,SkColor colors[2])44 static sk_sp<SkImage> make_picture_image(int width, int height, SkColor colors[2]) {
45 SkPictureRecorder recorder;
46 draw(recorder.beginRecording(SkRect::MakeIWH(width, height)), width, height, colors);
47 return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(),
48 {width, height}, nullptr, nullptr,
49 SkImage::BitDepth::kU8,
50 SkColorSpace::MakeSRGB());
51 }
52
53 typedef sk_sp<SkImage> (*ImageMakerProc)(int width, int height, SkColor colors[2]);
54
show_image(SkCanvas * canvas,int width,int height,SkColor colors[2],ImageMakerProc proc)55 static void show_image(SkCanvas* canvas, int width, int height, SkColor colors[2],
56 ImageMakerProc proc) {
57 sk_sp<SkImage> image(proc(width, height, colors));
58
59 SkPaint borderPaint;
60
61 borderPaint.setStyle(SkPaint::kStroke_Style);
62
63 SkRect dstRect = SkRect::MakeWH(128.f, 128.f);
64
65 canvas->save();
66 canvas->clipRect(dstRect);
67 canvas->drawImage(image, 0, 0, nullptr);
68 canvas->restore();
69 canvas->drawRect(dstRect, borderPaint);
70
71 dstRect.offset(SkIntToScalar(150), 0);
72 int hw = width / 2;
73 int hh = height / 2;
74 SkIRect subset = SkIRect::MakeLTRB(hw - 64, hh - 32, hw + 64, hh + 32);
75 canvas->drawImageRect(image, subset, dstRect, nullptr);
76 canvas->drawRect(dstRect, borderPaint);
77
78 dstRect.offset(SkIntToScalar(150), 0);
79 canvas->drawImageRect(image, dstRect, nullptr);
80 canvas->drawRect(dstRect, borderPaint);
81 }
82
83 class VeryLargeBitmapGM : public skiagm::GM {
84 ImageMakerProc fProc;
85 const char* fName;
86
87 public:
VeryLargeBitmapGM(ImageMakerProc proc,const char name[])88 VeryLargeBitmapGM(ImageMakerProc proc, const char name[]) : fProc(proc), fName(name) {}
89
90 private:
onShortName()91 SkString onShortName() override { return SkString(fName); }
92
onISize()93 SkISize onISize() override { return {500, 600}; }
94
onDraw(SkCanvas * canvas)95 void onDraw(SkCanvas* canvas) override {
96 int veryBig = 65*1024; // 64K < size
97 int big = 33*1024; // 32K < size < 64K
98 // smaller than many max texture sizes, but large enough to gpu-tile for memory reasons.
99 int medium = 5*1024;
100 int small = 150;
101
102 SkColor colors[2];
103
104 canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
105 colors[0] = SK_ColorRED;
106 colors[1] = SK_ColorGREEN;
107 show_image(canvas, small, small, colors, fProc);
108 canvas->translate(0, SkIntToScalar(150));
109
110 colors[0] = SK_ColorBLUE;
111 colors[1] = SK_ColorMAGENTA;
112 show_image(canvas, big, small, colors, fProc);
113 canvas->translate(0, SkIntToScalar(150));
114
115 colors[0] = SK_ColorMAGENTA;
116 colors[1] = SK_ColorYELLOW;
117 show_image(canvas, medium, medium, colors, fProc);
118 canvas->translate(0, SkIntToScalar(150));
119
120 colors[0] = SK_ColorGREEN;
121 colors[1] = SK_ColorYELLOW;
122 // This used to be big enough that we didn't draw on CPU, but now we do.
123 show_image(canvas, veryBig, small, colors, fProc);
124 }
125 };
126
127 DEF_GM( return new VeryLargeBitmapGM(make_raster_image, "verylargebitmap"); )
128 DEF_GM( return new VeryLargeBitmapGM(make_picture_image, "verylarge_picture_image"); )
129