promote SkMask's rowBytes to 32bits, since its bounds is a 32bit rect
be sure a rect is sorted before using it as the path's bounds cache
git-svn-id: http://skia.googlecode.com/svn/trunk@128 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleFuzz.cpp b/samplecode/SampleFuzz.cpp
new file mode 100644
index 0000000..e42887e
--- /dev/null
+++ b/samplecode/SampleFuzz.cpp
@@ -0,0 +1,356 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkBlurMaskFilter.h"
+#include "SkPaint.h"
+#include "SkPath.h"
+#include "SkPorterDuff.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);
+}
+
+static float make_number() {
+ float v;
+ 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 = R(100); else
+
+ switch (sel) {
+ case 0: break;
+ case 1: v = 0; break;
+ case 2: v = 0.000001; break;
+ case 3: v = 10000; break;
+ case 4: v = 2000000000; break;
+ case 5: v = 1e100; 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: {
+ SkPorterDuff::Mode mode;
+ switch (R(3)) {
+ case 0: mode = SkPorterDuff::kSrc_Mode; break;
+ case 1: mode = SkPorterDuff::kXor_Mode; break;
+ case 2: mode = SkPorterDuff::kSrcOver_Mode; break;
+ }
+ paint.setXfermode(SkPorterDuff::CreateXfermode(mode))->safeUnref();
+ }
+ 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::Create(make_number(), SkBlurMaskFilter::kNormal_BlurStyle))->safeUnref();
+ 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(-.000000001,1); scval = 2; break;
+ case 2: canvas->scale(-.000000001,1); scval = 0; break;
+ }
+
+ }
+
+ break;
+
+
+
+ }
+ }
+
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+class FuzzView : public SkView {
+public:
+ FuzzView() {}
+
+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 onDraw(SkCanvas* canvas) {
+ this->drawBG(canvas);
+ do_fuzz(canvas);
+ this->inval(NULL);
+ }
+
+private:
+ typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new FuzzView; }
+static SkViewRegister reg(MyFactory);
+