f9d610179d
Remove SkLCGRandom. We already decided the new one was better, which is why we wrote the new SkRandom. Convert GMs that were using SkLCGRandom to use the improved SkRandom. Motivated by the fact that these GMs draw differently on some runs. We believe this to be a result of using the old SkLCGRandom. Add each of the tests that were using SkLCGRandom to ignore-tests.txt, since we expect they'll draw differently using SkRandom. Move a trimmed down version of SkLCGRandom into SkDiscretePathEffect. In order to preserve the old behavior, trim down SkLCGRandom to only the methods used by SkDiscretePathEffect, and hide it in SkDiscretePathEffect's cpp file. BUG=skia:3241 Review URL: https://codereview.chromium.org/805963002
88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkRandom.h"
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namespace skiagm {
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#define W 400
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#define H 400
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#define N 100
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static const SkScalar SW = SkIntToScalar(W);
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static const SkScalar SH = SkIntToScalar(H);
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class StrokeRectsGM : public GM {
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public:
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StrokeRectsGM() {}
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protected:
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virtual uint32_t onGetFlags() const SK_OVERRIDE {
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return kSkipTiled_Flag;
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}
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virtual SkString onShortName() {
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return SkString("strokerects");
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}
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virtual SkISize onISize() {
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return SkISize::Make(W*2, H*2);
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}
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static void rnd_rect(SkRect* r, SkRandom& rand) {
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SkScalar x = rand.nextUScalar1() * W;
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SkScalar y = rand.nextUScalar1() * H;
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SkScalar w = rand.nextUScalar1() * (W >> 2);
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SkScalar h = rand.nextUScalar1() * (H >> 2);
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SkScalar hoffset = rand.nextSScalar1();
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SkScalar woffset = rand.nextSScalar1();
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r->set(x, y, x + w, y + h);
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r->offset(-w/2 + woffset, -h/2 + hoffset);
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}
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virtual void onDraw(SkCanvas* canvas) {
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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for (int y = 0; y < 2; y++) {
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paint.setAntiAlias(!!y);
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for (int x = 0; x < 2; x++) {
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paint.setStrokeWidth(x * SkIntToScalar(3));
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SkAutoCanvasRestore acr(canvas, true);
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canvas->translate(SW * x, SH * y);
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canvas->clipRect(SkRect::MakeLTRB(
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SkIntToScalar(2), SkIntToScalar(2)
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, SW - SkIntToScalar(2), SH - SkIntToScalar(2)
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));
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SkRandom rand;
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for (int i = 0; i < N; i++) {
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SkRect r;
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rnd_rect(&r, rand);
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canvas->drawRect(r, paint);
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}
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}
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}
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}
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new StrokeRectsGM; }
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static GMRegistry reg(MyFactory);
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}
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