| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #include "SampleCode.h" |
| #include "SkView.h" |
| #include "SkCanvas.h" |
| #include "SkBlurMaskFilter.h" |
| #include "SkPaint.h" |
| #include "SkPath.h" |
| #include "SkXfermode.h" |
| #include "SkMatrix.h" |
| #include "SkColor.h" |
| #include "SkRandom.h" |
| |
| static void set2x3(SkMatrix* m, float a, float b, float c, float d, float e, float f) { |
| m->reset(); |
| m->set(0, a); |
| m->set(1, b); |
| m->set(2, c); |
| m->set(3, d); |
| m->set(4, e); |
| m->set(5, f); |
| } |
| |
| static SkRandom gRand; |
| static bool return_large; |
| static bool return_undef; |
| static bool quick; |
| static bool scale_large; |
| static int scval = 1; |
| static float transval = 0; |
| |
| static int R(float x) { |
| return (int)floor(SkScalarToFloat(gRand.nextUScalar1()) * x); |
| } |
| |
| #if defined _WIN32 |
| #pragma warning ( push ) |
| // we are intentionally causing an overflow here |
| // (warning C4756: overflow in constant arithmetic) |
| #pragma warning ( disable : 4756 ) |
| #endif |
| |
| static float huge() { |
| double d = 1e100; |
| float f = (float)d; |
| return f; |
| } |
| |
| #if defined _WIN32 |
| #pragma warning ( pop ) |
| #endif |
| |
| static float make_number() { |
| float v = 0; |
| int sel; |
| |
| if (return_large == true && R(3) == 1) { |
| sel = R(6); |
| } else { |
| sel = R(4); |
| } |
| |
| if (return_undef == false && sel == 0) { |
| sel = 1; |
| } |
| |
| if (R(2) == 1) { |
| v = (float)R(100); |
| } else { |
| |
| switch (sel) { |
| case 0: break; |
| case 1: v = 0; break; |
| case 2: v = 0.000001f; break; |
| case 3: v = 10000; break; |
| case 4: v = 2000000000; break; |
| case 5: v = huge(); break; |
| } |
| |
| } |
| |
| if (R(4) == 1) { |
| v = -v; |
| } |
| |
| return v; |
| } |
| |
| static SkColor make_color() { |
| if (R(2) == 1) return 0xFFC0F0A0; else return 0xFF000090; |
| } |
| |
| |
| static SkColor make_fill() { |
| #if 0 |
| int sel; |
| |
| if (quick == true) sel = 0; else sel = R(6); |
| |
| switch (sel) { |
| |
| case 0: |
| case 1: |
| case 2: |
| return make_color(); |
| break; |
| |
| case 3: |
| var r = ctx.createLinearGradient(make_number(),make_number(),make_number(),make_number()); |
| for (i=0;i<4;i++) |
| r.addColorStop(make_number(),make_color()); |
| return r; |
| break; |
| |
| case 4: |
| var r = ctx.createRadialGradient(make_number(),make_number(),make_number(),make_number(),make_number(),make_number()); |
| for (i=0;i<4;i++) |
| r.addColorStop(make_number(),make_color()); |
| return r; |
| break; |
| |
| case 5: |
| var r = ctx.createPattern(imgObj,"repeat"); |
| if (R(6) == 0) |
| r.addColorStop(make_number(),make_color()); |
| return r; |
| break; |
| } |
| #else |
| return make_color(); |
| #endif |
| } |
| |
| |
| static void do_fuzz(SkCanvas* canvas) { |
| SkPath path; |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| |
| for (int i=0;i<100;i++) { |
| switch (R(33)) { |
| |
| case 0: |
| paint.setColor(make_fill()); |
| break; |
| |
| case 1: |
| paint.setAlpha(gRand.nextU() & 0xFF); |
| break; |
| |
| case 2: { |
| SkBlendMode mode; |
| switch (R(3)) { |
| case 0: mode = SkBlendMode::kSrc; break; |
| case 1: mode = SkBlendMode::kXor; break; |
| case 2: |
| default: // silence warning |
| mode = SkBlendMode::kSrcOver; break; |
| } |
| paint.setBlendMode(mode); |
| } |
| break; |
| |
| case 3: |
| switch (R(2)) { |
| case 0: paint.setStrokeCap(SkPaint::kRound_Cap); break; |
| case 1: paint.setStrokeCap(SkPaint::kButt_Cap); break; |
| } |
| break; |
| |
| case 4: |
| switch (R(2)) { |
| case 0: paint.setStrokeJoin(SkPaint::kRound_Join); break; |
| case 1: paint.setStrokeJoin(SkPaint::kMiter_Join); break; |
| } |
| break; |
| |
| case 5: |
| paint.setStrokeWidth(make_number()); |
| break; |
| |
| case 6: |
| paint.setStrokeMiter(make_number()); |
| break; |
| |
| case 7: |
| if (quick == true) break; |
| paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, make_number())); |
| break; |
| |
| case 8: |
| if (quick == true) break; |
| //ctx.shadowColor = make_fill(); |
| break; |
| |
| case 9: |
| if (quick == true) break; |
| //ctx.shadowOffsetX = make_number(); |
| //ctx.shadowOffsetY = make_number(); |
| break; |
| |
| case 10: |
| canvas->restore(); |
| break; |
| |
| case 11: |
| canvas->rotate(make_number()); |
| break; |
| |
| case 12: |
| canvas->save(); |
| break; |
| |
| case 13: |
| canvas->scale(-1,-1); |
| break; |
| |
| case 14: |
| |
| if (quick == true) break; |
| |
| if (transval == 0) { |
| transval = make_number(); |
| canvas->translate(transval,0); |
| } else { |
| canvas->translate(-transval,0); |
| transval = 0; |
| } |
| |
| break; |
| |
| case 15: { |
| SkRect r; |
| r.set(make_number(),make_number(),make_number(),make_number()); |
| SkPaint::Style s = paint.getStyle(); |
| paint.setStyle(SkPaint::kFill_Style); |
| canvas->drawRect(r, paint); |
| paint.setStyle(s); |
| // clearrect |
| } break; |
| |
| case 16: |
| if (quick == true) break; |
| // ctx.drawImage(imgObj,make_number(),make_number(),make_number(),make_number(),make_number(),make_number(),make_number(),make_number()); |
| break; |
| |
| case 17: { |
| SkRect r; |
| r.set(make_number(),make_number(),make_number(),make_number()); |
| SkPaint::Style s = paint.getStyle(); |
| paint.setStyle(SkPaint::kFill_Style); |
| canvas->drawRect(r, paint); |
| paint.setStyle(s); |
| } break; |
| |
| case 18: |
| path.reset(); |
| break; |
| |
| case 19: |
| // ctx.clip() is evil. |
| break; |
| |
| case 20: |
| path.close(); |
| break; |
| |
| case 21: { |
| SkPaint::Style s = paint.getStyle(); |
| paint.setStyle(SkPaint::kFill_Style); |
| canvas->drawPath(path, paint); |
| paint.setStyle(s); |
| } break; |
| |
| case 22: { |
| SkPaint::Style s = paint.getStyle(); |
| paint.setStyle(SkPaint::kFill_Style); |
| canvas->drawPath(path, paint); |
| paint.setStyle(s); |
| } break; |
| |
| case 23: { |
| SkRect r; |
| r.set(make_number(),make_number(),make_number(),make_number()); |
| SkPaint::Style s = paint.getStyle(); |
| paint.setStyle(SkPaint::kStroke_Style); |
| canvas->drawRect(r, paint); |
| paint.setStyle(s); |
| } break; |
| |
| case 24: |
| if (quick == true) break; |
| //ctx.arc(make_number(),make_number(),make_number(),make_number(),make_number(),true); |
| break; |
| |
| case 25: |
| if (quick == true) break; |
| //ctx.arcTo(make_number(),make_number(),make_number(),make_number(),make_number()); |
| break; |
| |
| case 26: |
| if (quick == true) break; |
| //ctx.bezierCurveTo(make_number(),make_number(),make_number(),make_number(),make_number(),make_number()); |
| break; |
| |
| case 27: |
| path.lineTo(make_number(),make_number()); |
| break; |
| |
| case 28: |
| path.moveTo(make_number(),make_number()); |
| break; |
| |
| case 29: |
| if (quick == true) break; |
| path.quadTo(make_number(),make_number(),make_number(),make_number()); |
| break; |
| |
| case 30: { |
| if (quick == true) break; |
| SkMatrix matrix; |
| set2x3(&matrix, make_number(),make_number(),make_number(),make_number(),make_number(),make_number()); |
| canvas->concat(matrix); |
| } break; |
| |
| case 31: { |
| if (quick == true) break; |
| SkMatrix matrix; |
| set2x3(&matrix, make_number(),make_number(),make_number(),make_number(),make_number(),make_number()); |
| canvas->setMatrix(matrix); |
| } break; |
| |
| case 32: |
| |
| if (scale_large == true) { |
| |
| switch (scval) { |
| case 0: canvas->scale(-1000000000,1); |
| canvas->scale(-1000000000,1); |
| scval = 1; break; |
| case 1: canvas->scale(-.000000001f,1); scval = 2; break; |
| case 2: canvas->scale(-.000000001f,1); scval = 0; break; |
| } |
| |
| } |
| |
| break; |
| |
| |
| |
| } |
| } |
| |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| class FuzzView : public SampleView { |
| public: |
| FuzzView() { |
| this->setBGColor(0xFFDDDDDD); |
| } |
| |
| protected: |
| // overrides from SkEventSink |
| virtual bool onQuery(SkEvent* evt) { |
| if (SampleCode::TitleQ(*evt)) { |
| SampleCode::TitleR(evt, "Fuzzer"); |
| return true; |
| } |
| return this->INHERITED::onQuery(evt); |
| } |
| |
| void drawBG(SkCanvas* canvas) { |
| canvas->drawColor(0xFFDDDDDD); |
| } |
| |
| virtual void onDrawContent(SkCanvas* canvas) { |
| do_fuzz(canvas); |
| this->inval(nullptr); |
| } |
| |
| private: |
| typedef SkView INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new FuzzView; } |
| static SkViewRegister reg(MyFactory); |
