/* * 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/SkCanvas.h" #include "include/core/SkShader.h" #include "include/core/SkString.h" #include "include/utils/SkCamera.h" #include "samplecode/DecodeFile.h" #include "samplecode/Sample.h" #include "src/effects/SkEmbossMaskFilter.h" #include "tools/Resources.h" #include "tools/timer/TimeUtils.h" namespace { class CameraView : public Sample { SkTArray> fShaders; int fShaderIndex = 0; bool fFrontFace = false; SkScalar fRX = 0; SkScalar fRY = 0; SkString name() override { return SkString("Camera"); } void onOnceBeforeDraw() override { for (const char* resource : { "images/mandrill_512_q075.jpg", "images/dog.jpg", "images/gamut.png", }) { SkBitmap bm; if (GetResourceAsBitmap(resource, &bm)) { SkRect src = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; SkRect dst = { -150, -150, 150, 150 }; SkMatrix matrix; matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit); fShaders.push_back(bm.makeShader(&matrix)); } } this->setBGColor(0xFFDDDDDD); } void onDrawContent(SkCanvas* canvas) override { if (fShaders.count() > 0) { canvas->translate(this->width()/2, this->height()/2); Sk3DView view; view.rotateX(fRX); view.rotateY(fRY); view.applyToCanvas(canvas); bool frontFace = view.dotWithNormal(0, 0, SK_Scalar1) < 0; if (frontFace != fFrontFace) { fFrontFace = frontFace; fShaderIndex = (fShaderIndex + 1) % fShaders.count(); } SkPaint paint; paint.setAntiAlias(true); paint.setShader(fShaders[fShaderIndex]); paint.setFilterQuality(kLow_SkFilterQuality); SkRect r = { -150, -150, 150, 150 }; canvas->drawRoundRect(r, 30, 30, paint); } } bool onAnimate(double nanos) override { fRY = nanos ? TimeUtils::Scaled(1e-9 * nanos, 90, 360) : 0; return true; } }; } // namespace DEF_SAMPLE( return new CameraView(); )