3 * Copyright 2011 Google Inc.
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
8 #include "SampleCode.h"
11 #include "SkBlurMaskFilter.h"
14 #include "SkXfermode.h"
19 static void set2x3(SkMatrix* m, float a, float b, float c, float d, float e, float f) {
29 static SkRandom gRand;
30 static bool return_large;
31 static bool return_undef;
33 static bool scale_large;
35 static float transval = 0;
37 static int R(float x) {
38 return (int)floor(SkScalarToFloat(gRand.nextUScalar1()) * x);
42 #pragma warning ( push )
43 // we are intentionally causing an overflow here
44 // (warning C4756: overflow in constant arithmetic)
45 #pragma warning ( disable : 4756 )
55 #pragma warning ( pop )
58 static float make_number() {
62 if (return_large == true && R(3) == 1) {
68 if (return_undef == false && sel == 0) {
79 case 2: v = 0.000001f; break;
80 case 3: v = 10000; break;
81 case 4: v = 2000000000; break;
82 case 5: v = huge(); break;
94 static SkColor make_color() {
95 if (R(2) == 1) return 0xFFC0F0A0; else return 0xFF000090;
99 static SkColor make_fill() {
103 if (quick == true) sel = 0; else sel = R(6);
114 var r = ctx.createLinearGradient(make_number(),make_number(),make_number(),make_number());
116 r.addColorStop(make_number(),make_color());
121 var r = ctx.createRadialGradient(make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
123 r.addColorStop(make_number(),make_color());
128 var r = ctx.createPattern(imgObj,"repeat");
130 r.addColorStop(make_number(),make_color());
140 static void do_fuzz(SkCanvas* canvas) {
143 paint.setAntiAlias(true);
145 for (int i=0;i<100;i++) {
149 paint.setColor(make_fill());
153 paint.setAlpha(gRand.nextU() & 0xFF);
157 SkXfermode::Mode mode;
159 case 0: mode = SkXfermode::kSrc_Mode; break;
160 case 1: mode = SkXfermode::kXor_Mode; break;
162 default: // silence warning
163 mode = SkXfermode::kSrcOver_Mode; break;
165 paint.setXfermodeMode(mode);
171 case 0: paint.setStrokeCap(SkPaint::kRound_Cap); break;
172 case 1: paint.setStrokeCap(SkPaint::kButt_Cap); break;
178 case 0: paint.setStrokeJoin(SkPaint::kRound_Join); break;
179 case 1: paint.setStrokeJoin(SkPaint::kMiter_Join); break;
184 paint.setStrokeWidth(make_number());
188 paint.setStrokeMiter(make_number());
192 if (quick == true) break;
193 SkSafeUnref(paint.setMaskFilter(SkBlurMaskFilter::Create(kNormal_SkBlurStyle,
198 if (quick == true) break;
199 //ctx.shadowColor = make_fill();
203 if (quick == true) break;
204 //ctx.shadowOffsetX = make_number();
205 //ctx.shadowOffsetY = make_number();
213 canvas->rotate(make_number());
221 canvas->scale(-1,-1);
226 if (quick == true) break;
229 transval = make_number();
230 canvas->translate(transval,0);
232 canvas->translate(-transval,0);
240 r.set(make_number(),make_number(),make_number(),make_number());
241 SkPaint::Style s = paint.getStyle();
242 paint.setStyle(SkPaint::kFill_Style);
243 canvas->drawRect(r, paint);
249 if (quick == true) break;
250 // ctx.drawImage(imgObj,make_number(),make_number(),make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
255 r.set(make_number(),make_number(),make_number(),make_number());
256 SkPaint::Style s = paint.getStyle();
257 paint.setStyle(SkPaint::kFill_Style);
258 canvas->drawRect(r, paint);
267 // ctx.clip() is evil.
275 SkPaint::Style s = paint.getStyle();
276 paint.setStyle(SkPaint::kFill_Style);
277 canvas->drawPath(path, paint);
282 SkPaint::Style s = paint.getStyle();
283 paint.setStyle(SkPaint::kFill_Style);
284 canvas->drawPath(path, paint);
290 r.set(make_number(),make_number(),make_number(),make_number());
291 SkPaint::Style s = paint.getStyle();
292 paint.setStyle(SkPaint::kStroke_Style);
293 canvas->drawRect(r, paint);
298 if (quick == true) break;
299 //ctx.arc(make_number(),make_number(),make_number(),make_number(),make_number(),true);
303 if (quick == true) break;
304 //ctx.arcTo(make_number(),make_number(),make_number(),make_number(),make_number());
308 if (quick == true) break;
309 //ctx.bezierCurveTo(make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
313 path.lineTo(make_number(),make_number());
317 path.moveTo(make_number(),make_number());
321 if (quick == true) break;
322 path.quadTo(make_number(),make_number(),make_number(),make_number());
326 if (quick == true) break;
328 set2x3(&matrix, make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
329 canvas->concat(matrix);
333 if (quick == true) break;
335 set2x3(&matrix, make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
336 canvas->setMatrix(matrix);
341 if (scale_large == true) {
344 case 0: canvas->scale(-1000000000,1);
345 canvas->scale(-1000000000,1);
347 case 1: canvas->scale(-.000000001f,1); scval = 2; break;
348 case 2: canvas->scale(-.000000001f,1); scval = 0; break;
362 //////////////////////////////////////////////////////////////////////////////
364 class FuzzView : public SampleView {
367 this->setBGColor(0xFFDDDDDD);
371 // overrides from SkEventSink
372 virtual bool onQuery(SkEvent* evt) {
373 if (SampleCode::TitleQ(*evt)) {
374 SampleCode::TitleR(evt, "Fuzzer");
377 return this->INHERITED::onQuery(evt);
380 void drawBG(SkCanvas* canvas) {
381 canvas->drawColor(0xFFDDDDDD);
384 virtual void onDrawContent(SkCanvas* canvas) {
386 this->inval(nullptr);
390 typedef SkView INHERITED;
393 //////////////////////////////////////////////////////////////////////////////
395 static SkView* MyFactory() { return new FuzzView; }
396 static SkViewRegister reg(MyFactory);