8a027312cd
Change-Id: I9b6e39bc7e35346bb73dfe014de1c8daa5a92f2a Reviewed-on: https://skia-review.googlesource.com/c/skia/+/225428 Auto-Submit: Hal Canary <halcanary@google.com> Commit-Queue: Ben Wagner <bungeman@google.com> Reviewed-by: Ben Wagner <bungeman@google.com>
117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
/*
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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 "include/core/SkCanvas.h"
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#include "include/core/SkPath.h"
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#include "samplecode/Sample.h"
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#include "src/core/SkAAClip.h"
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static void testop(const SkIRect& r0, const SkIRect& r1, SkRegion::Op op,
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const SkIRect& expectedR) {
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SkAAClip c0, c1, c2;
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c0.setRect(r0);
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c1.setRect(r1);
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c2.op(c0, c1, op);
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SkDEBUGCODE(SkIRect r2 = c2.getBounds());
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SkASSERT(r2 == expectedR);
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}
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static const struct {
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SkIRect r0;
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SkIRect r1;
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SkRegion::Op op;
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SkIRect expectedR;
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} gRec[] = {
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{{ 1, 2, 9, 3 }, { -3, 2, 5, 11 }, SkRegion::kDifference_Op, { 5, 2, 9, 3 }},
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{{ 1, 10, 5, 13 }, { 1, 2, 5, 11 }, SkRegion::kDifference_Op, { 1, 11, 5, 13 }},
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{{ 1, 10, 5, 13 }, { 1, 2, 5, 11 }, SkRegion::kReverseDifference_Op, { 1, 2, 5, 10 }},
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};
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static void testop() {
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for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); ++i) {
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testop(gRec[i].r0, gRec[i].r1, gRec[i].op, gRec[i].expectedR);
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}
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}
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static void drawClip(SkCanvas* canvas, const SkAAClip& clip) {
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SkMask mask;
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SkBitmap bm;
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clip.copyToMask(&mask);
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SkAutoMaskFreeImage amfi(mask.fImage);
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bm.installMaskPixels(mask);
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SkPaint paint;
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canvas->drawBitmap(bm,
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SK_Scalar1 * mask.fBounds.fLeft,
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SK_Scalar1 * mask.fBounds.fTop,
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&paint);
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}
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class AAClipView : public Sample {
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public:
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AAClipView() {
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testop();
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}
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protected:
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virtual SkString name() { return SkString("AAClip"); }
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virtual void onDrawContent(SkCanvas* canvas) {
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#if 1
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SkAAClip aaclip;
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SkPath path;
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SkRect bounds;
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bounds.set(0, 0, 20, 20);
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bounds.inset(SK_ScalarHalf, SK_ScalarHalf);
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// path.addRect(bounds);
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// path.addOval(bounds);
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path.addRoundRect(bounds, 4, 4);
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aaclip.setPath(path);
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canvas->translate(30, 30);
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drawClip(canvas, aaclip);
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SkAAClip aaclip2;
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path.offset(10, 10);
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aaclip2.setPath(path);
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canvas->translate(30, 0);
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drawClip(canvas, aaclip2);
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SkAAClip aaclip3;
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aaclip3.op(aaclip, aaclip2, SkRegion::kIntersect_Op);
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canvas->translate(30, 0);
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drawClip(canvas, aaclip3);
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#endif
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#if 0
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SkRect r;
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r.set(0, 0, this->width(), this->height());
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r.inset(20, 20);
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canvas->clipRect(r);
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SkPath path;
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path.addRect(r);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorRED);
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canvas->drawPath(path, paint);
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#endif
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}
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private:
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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new AAClipView(); )
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