| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkBitmap.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkClipOp.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRegion.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypeface.h" |
| #include "include/core/SkTypes.h" |
| #include "src/core/SkAAClip.h" |
| #include "src/core/SkMask.h" |
| #include "tools/ToolUtils.h" |
| |
| namespace skiagm { |
| |
| static void paint_rgn(SkCanvas* canvas, const SkAAClip& clip, |
| const SkPaint& paint) { |
| SkMask mask; |
| SkBitmap bm; |
| |
| clip.copyToMask(&mask); |
| |
| SkAutoMaskFreeImage amfi(mask.fImage); |
| |
| bm.installMaskPixels(mask); |
| |
| // need to copy for deferred drawing test to work |
| SkBitmap bm2; |
| |
| ToolUtils::copy_to(&bm2, bm.colorType(), bm); |
| |
| canvas->drawImage(bm2.asImage(), |
| SK_Scalar1 * mask.fBounds.fLeft, |
| SK_Scalar1 * mask.fBounds.fTop, |
| SkSamplingOptions(), |
| &paint); |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| /* |
| * This GM tests anti aliased single operation booleans with SkAAClips, |
| * SkRect and SkPaths. |
| */ |
| class SimpleClipGM : public GM { |
| public: |
| enum SkGeomTypes { |
| kRect_GeomType, |
| kPath_GeomType, |
| kAAClip_GeomType |
| }; |
| |
| SimpleClipGM(SkGeomTypes geomType) |
| : fGeomType(geomType) { |
| } |
| |
| protected: |
| void onOnceBeforeDraw() override { |
| // offset the rects a bit so we get anti-aliasing in the rect case |
| fBase.setLTRB(100.65f, |
| 100.65f, |
| 150.65f, |
| 150.65f); |
| fRect = fBase; |
| fRect.inset(5, 5); |
| fRect.offset(25, 25); |
| |
| fBasePath.addRoundRect(fBase, SkIntToScalar(5), SkIntToScalar(5)); |
| fRectPath.addRoundRect(fRect, SkIntToScalar(5), SkIntToScalar(5)); |
| INHERITED::setBGColor(0xFFDDDDDD); |
| } |
| |
| void buildRgn(SkAAClip* clip, SkClipOp op) { |
| clip->setPath(fBasePath, fBasePath.getBounds().roundOut(), true); |
| |
| SkAAClip clip2; |
| clip2.setPath(fRectPath, fRectPath.getBounds().roundOut(), true); |
| clip->op(clip2, op); |
| } |
| |
| void drawOrig(SkCanvas* canvas) { |
| SkPaint paint; |
| |
| paint.setStyle(SkPaint::kStroke_Style); |
| paint.setColor(SK_ColorBLACK); |
| |
| canvas->drawRect(fBase, paint); |
| canvas->drawRect(fRect, paint); |
| } |
| |
| void drawRgnOped(SkCanvas* canvas, SkClipOp op, SkColor color) { |
| |
| SkAAClip clip; |
| |
| this->buildRgn(&clip, op); |
| this->drawOrig(canvas); |
| |
| SkPaint paint; |
| paint.setColor(color); |
| paint_rgn(canvas, clip, paint); |
| } |
| |
| void drawPathsOped(SkCanvas* canvas, SkClipOp op, SkColor color) { |
| |
| this->drawOrig(canvas); |
| |
| canvas->save(); |
| |
| // create the clip mask with the supplied boolean op |
| if (kPath_GeomType == fGeomType) { |
| // path-based case |
| canvas->clipPath(fBasePath, true); |
| canvas->clipPath(fRectPath, op, true); |
| } else { |
| // rect-based case |
| canvas->clipRect(fBase, true); |
| canvas->clipRect(fRect, op, true); |
| } |
| |
| // draw a rect that will entirely cover the clip mask area |
| SkPaint paint; |
| paint.setColor(color); |
| |
| SkRect r = SkRect::MakeLTRB(SkIntToScalar(90), SkIntToScalar(90), |
| SkIntToScalar(180), SkIntToScalar(180)); |
| |
| canvas->drawRect(r, paint); |
| |
| canvas->restore(); |
| } |
| |
| SkString onShortName() override { |
| SkString str; |
| str.printf("simpleaaclip_%s", |
| kRect_GeomType == fGeomType ? "rect" : |
| (kPath_GeomType == fGeomType ? "path" : |
| "aaclip")); |
| return str; |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(500, 240); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| |
| const struct { |
| SkColor fColor; |
| const char* fName; |
| SkClipOp fOp; |
| } gOps[] = { |
| {SK_ColorBLACK, "Difference", SkClipOp::kDifference}, |
| {SK_ColorRED, "Intersect", SkClipOp::kIntersect}, |
| }; |
| |
| SkPaint textPaint; |
| SkFont font(ToolUtils::create_portable_typeface(), 24); |
| int xOff = 0; |
| |
| for (size_t op = 0; op < std::size(gOps); op++) { |
| canvas->drawString(gOps[op].fName, 75.0f, 50.0f, font, textPaint); |
| |
| if (kAAClip_GeomType == fGeomType) { |
| this->drawRgnOped(canvas, gOps[op].fOp, gOps[op].fColor); |
| } else { |
| this->drawPathsOped(canvas, gOps[op].fOp, gOps[op].fColor); |
| } |
| |
| if (xOff >= 400) { |
| canvas->translate(SkIntToScalar(-400), SkIntToScalar(250)); |
| xOff = 0; |
| } else { |
| canvas->translate(SkIntToScalar(200), 0); |
| xOff += 200; |
| } |
| } |
| } |
| private: |
| |
| SkGeomTypes fGeomType; |
| |
| SkRect fBase; |
| SkRect fRect; |
| |
| SkPath fBasePath; // fBase as a round rect |
| SkPath fRectPath; // fRect as a round rect |
| |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| // rects |
| DEF_GM( return new SimpleClipGM(SimpleClipGM::kRect_GeomType); ) |
| DEF_GM( return new SimpleClipGM(SimpleClipGM::kPath_GeomType); ) |
| DEF_GM( return new SimpleClipGM(SimpleClipGM::kAAClip_GeomType); ) |
| |
| } // namespace skiagm |