33cdbdea3d
Review URL: https://codereview.appspot.com/7071060 git-svn-id: http://skia.googlecode.com/svn/trunk@7142 2bbb7eff-a529-9590-31e7-b0007b416f81
237 lines
7.0 KiB
C++
237 lines
7.0 KiB
C++
/*
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* Copyright 2012 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 "SkBlurMaskFilter.h"
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#include "SkBlurMask.h"
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#include "SkCanvas.h"
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#include "SkPath.h"
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#define STROKE_WIDTH SkIntToScalar(10)
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typedef void (*Proc)(SkCanvas*, const SkRect&, const SkPaint&);
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static void fill_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
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canvas->drawRect(r, p);
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}
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static void draw_donut(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
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SkRect rect;
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SkPath path;
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rect = r;
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rect.outset(STROKE_WIDTH/2, STROKE_WIDTH/2);
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path.addRect(rect);
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rect = r;
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rect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2);
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path.addRect(rect);
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path.setFillType(SkPath::kEvenOdd_FillType);
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canvas->drawPath(path, p);
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}
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static void draw_donut_skewed(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
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SkRect rect;
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SkPath path;
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rect = r;
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rect.outset(STROKE_WIDTH/2, STROKE_WIDTH/2);
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path.addRect(rect);
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rect = r;
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rect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2);
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rect.offset(7, -7);
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path.addRect(rect);
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path.setFillType(SkPath::kEvenOdd_FillType);
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canvas->drawPath(path, p);
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}
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#include "SkGradientShader.h"
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typedef void (*PaintProc)(SkPaint*, SkScalar width);
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static const char* gBlurStyle2Name[] = {
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"normal",
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"solid",
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"outer",
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"inner"
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};
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class BlurRectGM : public skiagm::GM {
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SkAutoTUnref<SkMaskFilter> fMaskFilter;
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SkString fName;
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PaintProc fPProc;
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SkAlpha fAlpha;
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public:
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BlurRectGM(const char name[], PaintProc pproc, U8CPU alpha,
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SkBlurMaskFilter::BlurStyle bs) :
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fMaskFilter(SkBlurMaskFilter::Create(STROKE_WIDTH/2, bs,
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SkBlurMaskFilter::kHighQuality_BlurFlag))
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, fName(name)
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, fPProc(pproc)
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, fAlpha(SkToU8(alpha))
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{
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fName.appendf("_%s", gBlurStyle2Name[bs]);
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}
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protected:
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virtual SkString onShortName() {
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return fName;
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}
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virtual SkISize onISize() {
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return SkISize::Make(640, 480);
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}
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virtual void onDraw(SkCanvas* canvas) {
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canvas->translate(STROKE_WIDTH*3/2, STROKE_WIDTH*3/2);
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SkRect r = { 0, 0, 250, 120 };
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SkPaint paint;
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paint.setMaskFilter(fMaskFilter);
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if (fPProc) {
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fPProc(&paint, r.width());
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}
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paint.setAlpha(fAlpha);
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static const Proc procs[] = {
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fill_rect, draw_donut, draw_donut_skewed
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};
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this->drawProcs(canvas, r, paint, false, procs, SK_ARRAY_COUNT(procs));
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canvas->translate(r.width() * 4/3, 0);
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this->drawProcs(canvas, r, paint, true, procs, SK_ARRAY_COUNT(procs));
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}
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virtual uint32_t onGetFlags() const { return kSkipPipe_Flag; }
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private:
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void drawProcs(SkCanvas* canvas, const SkRect& r, const SkPaint& paint,
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bool doClip, const Proc procs[], size_t procsCount) {
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SkAutoCanvasRestore acr(canvas, true);
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for (size_t i = 0; i < procsCount; ++i) {
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if (doClip) {
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SkRect clipRect(r);
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clipRect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2);
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canvas->save();
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canvas->clipRect(r);
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}
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procs[i](canvas, r, paint);
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if (doClip) {
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canvas->restore();
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}
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canvas->translate(0, r.height() * 4/3);
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}
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}
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typedef GM INHERITED;
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};
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class BlurRectCompareGM : public skiagm::GM {
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SkString fName;
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unsigned int fRectWidth, fRectHeight;
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SkScalar fRadius;
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public:
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BlurRectCompareGM(const char name[], unsigned int rectWidth, unsigned int rectHeight, float radius)
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: fName(name)
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, fRectWidth(rectWidth)
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, fRectHeight(rectHeight)
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, fRadius(radius)
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{}
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int width() const { return fRectWidth; }
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int height() const { return fRectHeight; }
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SkScalar radius() const { return fRadius; }
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protected:
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virtual SkString onShortName() {
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return fName;
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}
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virtual SkISize onISize() {
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return SkISize::Make(640, 480);
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}
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virtual void makeMask(SkMask *m, const SkRect&) = 0;
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virtual void onDraw(SkCanvas* canvas) {
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SkRect r;
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r.setWH(SkIntToScalar(fRectWidth), SkIntToScalar(fRectHeight));
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SkMask mask;
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this->makeMask(&mask, r);
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SkAutoMaskFreeImage amfi(mask.fImage);
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SkBitmap bm;
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bm.setConfig(SkBitmap::kA8_Config, mask.fBounds.width(), mask.fBounds.height());
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bm.setPixels(mask.fImage);
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canvas->drawBitmap(bm, 50, 50, NULL);
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}
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virtual uint32_t onGetFlags() const { return kSkipPipe_Flag; }
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private:
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typedef GM INHERITED;
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};
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class BlurRectFastGM: public BlurRectCompareGM {
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public:
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BlurRectFastGM(const char name[], unsigned int rect_width,
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unsigned int rect_height, float blur_radius) :
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BlurRectCompareGM(name, rect_width, rect_height, blur_radius) {}
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protected:
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virtual void makeMask(SkMask *m, const SkRect& r) SK_OVERRIDE {
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SkBlurMask::BlurRect(m, r, radius(), SkBlurMask::kNormal_Style,
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SkBlurMask::kHigh_Quality );
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}
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};
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class BlurRectSlowGM: public BlurRectCompareGM {
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public:
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BlurRectSlowGM(const char name[], unsigned int rect_width, unsigned int rect_height, float blur_radius) :
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BlurRectCompareGM( name, rect_width, rect_height, blur_radius ) {}
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protected:
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virtual void makeMask(SkMask *m, const SkRect& r) SK_OVERRIDE {
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SkMask src;
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r.roundOut(&src.fBounds);
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src.fBounds.offset(-src.fBounds.fLeft, -src.fBounds.fTop); // move to origin
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src.fFormat = SkMask::kA8_Format;
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src.fRowBytes = src.fBounds.width();
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src.fImage = SkMask::AllocImage( src.computeTotalImageSize() );
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SkAutoMaskFreeImage amfi(src.fImage);
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memset(src.fImage, 0xff, src.computeTotalImageSize());
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SkBlurMask::BlurSeparable(m, src, radius()/2, SkBlurMask::kNormal_Style, SkBlurMask::kHigh_Quality);
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}
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new BlurRectGM("blurrect", NULL, 0xFF, SkBlurMaskFilter::kNormal_BlurStyle);)
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DEF_GM(return new BlurRectGM("blurrect", NULL, 0xFF, SkBlurMaskFilter::kSolid_BlurStyle);)
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DEF_GM(return new BlurRectGM("blurrect", NULL, 0xFF, SkBlurMaskFilter::kOuter_BlurStyle);)
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DEF_GM(return new BlurRectGM("blurrect", NULL, 0xFF, SkBlurMaskFilter::kInner_BlurStyle);)
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#if 0 // disable while we debug an rtree failure
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DEF_GM(return new BlurRectFastGM("blurrect_fast_100_100_10", 100, 100, 10);)
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DEF_GM(return new BlurRectFastGM("blurrect_fast_100_100_2", 100, 100, 2);)
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DEF_GM(return new BlurRectFastGM("blurrect_fast_10_10_100", 10, 10, 100);)
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DEF_GM(return new BlurRectFastGM("blurrect_fast_10_100_10", 10, 100, 10);)
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#endif
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DEF_GM(return new BlurRectSlowGM("blurrect_slow_100_100_10", 100, 100, 10);)
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DEF_GM(return new BlurRectSlowGM("blurrect_slow_100_100_2", 100, 100, 2);)
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DEF_GM(return new BlurRectSlowGM("blurrect_slow_10_10_100", 10, 10, 100);)
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DEF_GM(return new BlurRectSlowGM("blurrect_slow_10_100_10", 10, 100, 10);)
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