/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "include/core/SkBitmap.h" #include "include/core/SkCanvas.h" #include "include/core/SkColorFilter.h" #include "include/core/SkColorPriv.h" #include "include/core/SkPaint.h" #include "include/core/SkPath.h" #include "include/core/SkPicture.h" #include "include/core/SkPictureRecorder.h" #include "include/core/SkRegion.h" #include "include/core/SkShader.h" #include "include/core/SkTypeface.h" #include "include/utils/SkTextUtils.h" #include "samplecode/Sample.h" #include "src/utils/SkUTF.h" #ifdef SK_SUPPORT_LEGACY_DRAWLOOPER // effects #include "include/effects/SkBlurDrawLooper.h" #include "include/effects/SkGradientShader.h" #include "src/core/SkBlurMask.h" static void makebm(SkBitmap* bm, SkColorType ct, int w, int h) { bm->allocPixels(SkImageInfo::Make(w, h, ct, kPremul_SkAlphaType)); bm->eraseColor(SK_ColorTRANSPARENT); SkCanvas canvas(*bm); SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(w), SkIntToScalar(h) } }; SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE }; SkScalar pos[] = { 0, SK_Scalar1/2, SK_Scalar1 }; SkPaint paint; paint.setDither(true); paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, SK_ARRAY_COUNT(colors), SkTileMode::kClamp)); canvas.drawPaint(paint); } static void setup(SkPaint* paint, const SkBitmap& bm, bool filter, SkTileMode tmx, SkTileMode tmy) { paint->setShader(bm.makeShader(tmx, tmy)); paint->setFilterQuality(filter ? kLow_SkFilterQuality : kNone_SkFilterQuality); } static const SkColorType gColorTypes[] = { kN32_SkColorType, kRGB_565_SkColorType, }; static const int gWidth = 32; static const int gHeight = 32; class TilingView : public Sample { sk_sp<SkPicture> fTextPicture; sk_sp<SkDrawLooper> fLooper; public: TilingView() : fLooper(SkBlurDrawLooper::Make(0x88000000, SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(1)), SkIntToScalar(2), SkIntToScalar(2))) { for (size_t i = 0; i < SK_ARRAY_COUNT(gColorTypes); i++) { makebm(&fTexture[i], gColorTypes[i], gWidth, gHeight); } } virtual ~TilingView() { } SkBitmap fTexture[SK_ARRAY_COUNT(gColorTypes)]; protected: virtual SkString name() { return SkString("Tiling"); } virtual void onDrawContent(SkCanvas* canvas) { SkRect r = { 0, 0, SkIntToScalar(gWidth*2), SkIntToScalar(gHeight*2) }; static const char* gConfigNames[] = { "8888", "565", "4444" }; static const bool gFilters[] = { false, true }; static const char* gFilterNames[] = { "point", "bilinear" }; static const SkTileMode gModes[] = { SkTileMode::kClamp, SkTileMode::kRepeat, SkTileMode::kMirror }; static const char* gModeNames[] = { "C", "R", "M" }; SkScalar y = SkIntToScalar(24); SkScalar x = SkIntToScalar(10); SkPictureRecorder recorder; SkCanvas* textCanvas = nullptr; if (nullptr == fTextPicture) { textCanvas = recorder.beginRecording(1000, 1000, nullptr, 0); } if (textCanvas) { for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) { for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) { SkPaint p; SkString str; p.setDither(true); p.setLooper(fLooper); str.printf("[%s,%s]", gModeNames[kx], gModeNames[ky]); SkTextUtils::DrawString(textCanvas, str.c_str(), x + r.width()/2, y, SkFont(), p, SkTextUtils::kCenter_Align); x += r.width() * 4 / 3; } } } y += SkIntToScalar(16); for (size_t i = 0; i < SK_ARRAY_COUNT(gColorTypes); i++) { for (size_t j = 0; j < SK_ARRAY_COUNT(gFilters); j++) { x = SkIntToScalar(10); for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) { for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) { SkPaint paint; setup(&paint, fTexture[i], gFilters[j], gModes[kx], gModes[ky]); paint.setDither(true); canvas->save(); canvas->translate(x, y); canvas->drawRect(r, paint); canvas->restore(); x += r.width() * 4 / 3; } } if (textCanvas) { SkPaint p; p.setLooper(fLooper); textCanvas->drawString( SkStringPrintf("%s, %s", gConfigNames[i], gFilterNames[j]), x, y + r.height() * 2 / 3, SkFont(), p); } y += r.height() * 4 / 3; } } if (textCanvas) { SkASSERT(nullptr == fTextPicture); fTextPicture = recorder.finishRecordingAsPicture(); } SkASSERT(fTextPicture); canvas->drawPicture(fTextPicture.get()); } private: typedef Sample INHERITED; }; ////////////////////////////////////////////////////////////////////////////// DEF_SAMPLE( return new TilingView(); ) #endif