1 /*
2 * Copyright 2011 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 "sk_tool_utils.h"
10 #include "SkShader.h"
11 #include "SkTraceEvent.h"
12 using namespace skiagm;
13
GM()14 GM::GM() {
15 fMode = kGM_Mode;
16 fBGColor = SK_ColorWHITE;
17 fCanvasIsDeferred = false;
18 fHaveCalledOnceBeforeDraw = false;
19 }
20
~GM()21 GM::~GM() {}
22
draw(SkCanvas * canvas)23 void GM::draw(SkCanvas* canvas) {
24 TRACE_EVENT1("GM", TRACE_FUNC, "name", TRACE_STR_COPY(this->getName()));
25 this->drawBackground(canvas);
26 this->drawContent(canvas);
27 }
28
drawContent(SkCanvas * canvas)29 void GM::drawContent(SkCanvas* canvas) {
30 TRACE_EVENT0("GM", TRACE_FUNC);
31 if (!fHaveCalledOnceBeforeDraw) {
32 fHaveCalledOnceBeforeDraw = true;
33 this->onOnceBeforeDraw();
34 }
35 SkAutoCanvasRestore acr(canvas, true);
36 this->onDraw(canvas);
37 }
38
drawBackground(SkCanvas * canvas)39 void GM::drawBackground(SkCanvas* canvas) {
40 TRACE_EVENT0("GM", TRACE_FUNC);
41 if (!fHaveCalledOnceBeforeDraw) {
42 fHaveCalledOnceBeforeDraw = true;
43 this->onOnceBeforeDraw();
44 }
45 SkAutoCanvasRestore acr(canvas, true);
46 canvas->drawColor(fBGColor, SkBlendMode::kSrc);
47 }
48
getName()49 const char* GM::getName() {
50 if (fShortName.size() == 0) {
51 fShortName = this->onShortName();
52 }
53 return fShortName.c_str();
54 }
55
setBGColor(SkColor color)56 void GM::setBGColor(SkColor color) {
57 fBGColor = color;
58 }
59
animate(const SkAnimTimer & timer)60 bool GM::animate(const SkAnimTimer& timer) {
61 return this->onAnimate(timer);
62 }
63
64 /////////////////////////////////////////////////////////////////////////////////////////////
65
drawSizeBounds(SkCanvas * canvas,SkColor color)66 void GM::drawSizeBounds(SkCanvas* canvas, SkColor color) {
67 SkISize size = this->getISize();
68 SkRect r = SkRect::MakeWH(SkIntToScalar(size.width()),
69 SkIntToScalar(size.height()));
70 SkPaint paint;
71 paint.setColor(color);
72 canvas->drawRect(r, paint);
73 }
74
DrawGpuOnlyMessage(SkCanvas * canvas)75 void GM::DrawGpuOnlyMessage(SkCanvas* canvas) {
76 SkBitmap bmp;
77 bmp.allocN32Pixels(128, 64);
78 SkCanvas bmpCanvas(bmp);
79 bmpCanvas.drawColor(SK_ColorWHITE);
80 SkFont font(sk_tool_utils::create_portable_typeface(), 20);
81 SkPaint paint;
82 paint.setColor(SK_ColorRED);
83 bmpCanvas.drawString("GPU Only", 20, 40, font, paint);
84 SkMatrix localM;
85 localM.setRotate(35.f);
86 localM.postTranslate(10.f, 0.f);
87 paint.setShader(SkShader::MakeBitmapShader(bmp, SkShader::kMirror_TileMode,
88 SkShader::kMirror_TileMode,
89 &localM));
90 paint.setFilterQuality(kMedium_SkFilterQuality);
91 canvas->drawPaint(paint);
92 return;
93 }
94
95 // need to explicitly declare this, or we get some weird infinite loop llist
96 template GMRegistry* GMRegistry::gHead;
97
onDraw(SkCanvas * canvas)98 void skiagm::SimpleGM::onDraw(SkCanvas* canvas) {
99 fDrawProc(canvas);
100 }
101
onISize()102 SkISize skiagm::SimpleGM::onISize() {
103 return fSize;
104 }
105
onShortName()106 SkString skiagm::SimpleGM::onShortName() {
107 return fName;
108 }
109
110 template <typename Fn>
mark(SkCanvas * canvas,SkScalar x,SkScalar y,Fn && fn)111 static void mark(SkCanvas* canvas, SkScalar x, SkScalar y, Fn&& fn) {
112 SkPaint alpha;
113 alpha.setAlpha(0x50);
114 canvas->saveLayer(nullptr, &alpha);
115 canvas->translate(x,y);
116 canvas->scale(2,2);
117 fn();
118 canvas->restore();
119 }
120
MarkGMGood(SkCanvas * canvas,SkScalar x,SkScalar y)121 void MarkGMGood(SkCanvas* canvas, SkScalar x, SkScalar y) {
122 mark(canvas, x,y, [&]{
123 SkPaint paint;
124
125 // A green circle.
126 paint.setColor(SkColorSetRGB(27, 158, 119));
127 canvas->drawCircle(0,0, 12, paint);
128
129 // Cut out a check mark.
130 paint.setBlendMode(SkBlendMode::kSrc);
131 paint.setColor(0x00000000);
132 paint.setStrokeWidth(2);
133 paint.setStyle(SkPaint::kStroke_Style);
134 canvas->drawLine(-6, 0,
135 -1, 5, paint);
136 canvas->drawLine(-1, +5,
137 +7, -5, paint);
138 });
139 }
140
MarkGMBad(SkCanvas * canvas,SkScalar x,SkScalar y)141 void MarkGMBad(SkCanvas* canvas, SkScalar x, SkScalar y) {
142 mark(canvas, x,y, [&] {
143 SkPaint paint;
144
145 // A red circle.
146 paint.setColor(SkColorSetRGB(231, 41, 138));
147 canvas->drawCircle(0,0, 12, paint);
148
149 // Cut out an 'X'.
150 paint.setBlendMode(SkBlendMode::kSrc);
151 paint.setColor(0x00000000);
152 paint.setStrokeWidth(2);
153 paint.setStyle(SkPaint::kStroke_Style);
154 canvas->drawLine(-5,-5,
155 +5,+5, paint);
156 canvas->drawLine(+5,-5,
157 -5,+5, paint);
158 });
159 }
160