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(
194 SkBlurMaskFilter::kNormal_BlurStyle,
199 if (quick == true) break;
200 //ctx.shadowColor = make_fill();
204 if (quick == true) break;
205 //ctx.shadowOffsetX = make_number();
206 //ctx.shadowOffsetY = make_number();
214 canvas->rotate(make_number());
222 canvas->scale(-1,-1);
227 if (quick == true) break;
230 transval = make_number();
231 canvas->translate(transval,0);
233 canvas->translate(-transval,0);
241 r.set(make_number(),make_number(),make_number(),make_number());
242 SkPaint::Style s = paint.getStyle();
243 paint.setStyle(SkPaint::kFill_Style);
244 canvas->drawRect(r, paint);
250 if (quick == true) break;
251 // ctx.drawImage(imgObj,make_number(),make_number(),make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
256 r.set(make_number(),make_number(),make_number(),make_number());
257 SkPaint::Style s = paint.getStyle();
258 paint.setStyle(SkPaint::kFill_Style);
259 canvas->drawRect(r, paint);
268 // ctx.clip() is evil.
276 SkPaint::Style s = paint.getStyle();
277 paint.setStyle(SkPaint::kFill_Style);
278 canvas->drawPath(path, paint);
283 SkPaint::Style s = paint.getStyle();
284 paint.setStyle(SkPaint::kFill_Style);
285 canvas->drawPath(path, paint);
291 r.set(make_number(),make_number(),make_number(),make_number());
292 SkPaint::Style s = paint.getStyle();
293 paint.setStyle(SkPaint::kStroke_Style);
294 canvas->drawRect(r, paint);
299 if (quick == true) break;
300 //ctx.arc(make_number(),make_number(),make_number(),make_number(),make_number(),true);
304 if (quick == true) break;
305 //ctx.arcTo(make_number(),make_number(),make_number(),make_number(),make_number());
309 if (quick == true) break;
310 //ctx.bezierCurveTo(make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
314 path.lineTo(make_number(),make_number());
318 path.moveTo(make_number(),make_number());
322 if (quick == true) break;
323 path.quadTo(make_number(),make_number(),make_number(),make_number());
327 if (quick == true) break;
329 set2x3(&matrix, make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
330 canvas->concat(matrix);
334 if (quick == true) break;
336 set2x3(&matrix, make_number(),make_number(),make_number(),make_number(),make_number(),make_number());
337 canvas->setMatrix(matrix);
342 if (scale_large == true) {
345 case 0: canvas->scale(-1000000000,1);
346 canvas->scale(-1000000000,1);
348 case 1: canvas->scale(-.000000001f,1); scval = 2; break;
349 case 2: canvas->scale(-.000000001f,1); scval = 0; break;
363 //////////////////////////////////////////////////////////////////////////////
365 class FuzzView : public SampleView {
368 this->setBGColor(0xFFDDDDDD);
372 // overrides from SkEventSink
373 virtual bool onQuery(SkEvent* evt) {
374 if (SampleCode::TitleQ(*evt)) {
375 SampleCode::TitleR(evt, "Fuzzer");
378 return this->INHERITED::onQuery(evt);
381 void drawBG(SkCanvas* canvas) {
382 canvas->drawColor(0xFFDDDDDD);
385 virtual void onDrawContent(SkCanvas* canvas) {
391 typedef SkView INHERITED;
394 //////////////////////////////////////////////////////////////////////////////
396 static SkView* MyFactory() { return new FuzzView; }
397 static SkViewRegister reg(MyFactory);