/* * Copyright 2015 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/SkCanvas.h" #include "include/core/SkColor.h" #include "include/core/SkImage.h" #include "include/core/SkImageInfo.h" #include "include/core/SkMatrix.h" #include "include/core/SkPaint.h" #include "include/core/SkPoint.h" #include "include/core/SkRect.h" #include "include/core/SkRefCnt.h" #include "include/core/SkScalar.h" #include "include/core/SkShader.h" #include "include/core/SkSize.h" #include "include/core/SkString.h" #include "include/core/SkSurface.h" #include "include/core/SkTileMode.h" #include "include/core/SkTypes.h" #include "include/effects/SkGradientShader.h" #include "include/utils/SkRandom.h" #include "src/core/SkMathPriv.h" static sk_sp<SkImage> makebm(int w, int h) { SkImageInfo info = SkImageInfo::MakeN32Premul(w, h); auto surface(SkSurface::MakeRaster(info)); SkCanvas* canvas = surface->getCanvas(); const SkScalar wScalar = SkIntToScalar(w); const SkScalar hScalar = SkIntToScalar(h); const SkPoint pt = { wScalar / 2, hScalar / 2 }; const SkScalar radius = 4 * SkMaxScalar(wScalar, hScalar); constexpr SkColor colors[] = { SK_ColorRED, SK_ColorYELLOW, SK_ColorGREEN, SK_ColorMAGENTA, SK_ColorBLUE, SK_ColorCYAN, SK_ColorRED}; constexpr SkScalar pos[] = {0, SK_Scalar1 / 6, 2 * SK_Scalar1 / 6, 3 * SK_Scalar1 / 6, 4 * SK_Scalar1 / 6, 5 * SK_Scalar1 / 6, SK_Scalar1}; SkASSERT(SK_ARRAY_COUNT(colors) == SK_ARRAY_COUNT(pos)); SkPaint paint; SkRect rect = SkRect::MakeWH(wScalar, hScalar); SkMatrix mat = SkMatrix::I(); for (int i = 0; i < 4; ++i) { paint.setShader(SkGradientShader::MakeRadial( pt, radius, colors, pos, SK_ARRAY_COUNT(colors), SkTileMode::kRepeat, 0, &mat)); canvas->drawRect(rect, paint); rect.inset(wScalar / 8, hScalar / 8); mat.postScale(SK_Scalar1 / 4, SK_Scalar1 / 4); } return surface->makeImageSnapshot(); } constexpr int gSize = 1024; constexpr int gSurfaceSize = 2048; // This GM calls drawImageRect several times using the same texture. This is intended to exercise // combining GrDrawOps during these calls. class DrawMiniBitmapRectGM : public skiagm::GM { public: DrawMiniBitmapRectGM(bool antiAlias) : fAA(antiAlias) { fName.set("drawminibitmaprect"); if (fAA) { fName.appendf("_aa"); } } protected: SkString onShortName() override { return fName; } SkISize onISize() override { return SkISize::Make(gSize, gSize); } void onDraw(SkCanvas* canvas) override { if (nullptr == fImage) { fImage = makebm(gSurfaceSize, gSurfaceSize); } const SkRect dstRect = { 0, 0, SkIntToScalar(64), SkIntToScalar(64)}; const int kMaxSrcRectSize = 1 << (SkNextLog2(gSurfaceSize) + 2); constexpr int kPadX = 30; constexpr int kPadY = 40; int rowCount = 0; canvas->translate(SkIntToScalar(kPadX), SkIntToScalar(kPadY)); canvas->save(); SkRandom random; SkPaint paint; paint.setAntiAlias(fAA); for (int w = 1; w <= kMaxSrcRectSize; w *= 3) { for (int h = 1; h <= kMaxSrcRectSize; h *= 3) { const SkIRect srcRect = SkIRect::MakeXYWH((gSurfaceSize - w) / 2, (gSurfaceSize - h) / 2, w, h); canvas->save(); switch (random.nextU() % 3) { case 0: canvas->rotate(random.nextF() * 10.f); break; case 1: canvas->rotate(-random.nextF() * 10.f); break; case 2: // rect stays rect break; } canvas->drawImageRect(fImage.get(), srcRect, dstRect, &paint, SkCanvas::kFast_SrcRectConstraint); canvas->restore(); canvas->translate(dstRect.width() + SK_Scalar1 * kPadX, 0); ++rowCount; if ((dstRect.width() + 2 * kPadX) * rowCount > gSize) { canvas->restore(); canvas->translate(0, dstRect.height() + SK_Scalar1 * kPadY); canvas->save(); rowCount = 0; } } } canvas->restore(); } private: bool fAA; sk_sp<SkImage> fImage; SkString fName; typedef skiagm::GM INHERITED; }; DEF_GM( return new DrawMiniBitmapRectGM(true); ) DEF_GM( return new DrawMiniBitmapRectGM(false); )