8a027312cd
Change-Id: I9b6e39bc7e35346bb73dfe014de1c8daa5a92f2a Reviewed-on: https://skia-review.googlesource.com/c/skia/+/225428 Auto-Submit: Hal Canary <halcanary@google.com> Commit-Queue: Ben Wagner <bungeman@google.com> Reviewed-by: Ben Wagner <bungeman@google.com>
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/*
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* Copyright 2011 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 "include/core/SkCanvas.h"
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#include "include/core/SkPath.h"
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#include "include/core/SkRegion.h"
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#include "include/core/SkShader.h"
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#include "include/core/SkString.h"
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#include "include/effects/SkGradientShader.h"
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#include "include/utils/SkCamera.h"
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#include "include/utils/SkRandom.h"
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#include "samplecode/DecodeFile.h"
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#include "samplecode/Sample.h"
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#include "src/effects/SkEmbossMaskFilter.h"
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#include "src/utils/SkUTF.h"
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#include "tools/timer/AnimTimer.h"
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class CameraView : public Sample {
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SkTArray<sk_sp<SkShader>> fShaders;
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int fShaderIndex;
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bool fFrontFace;
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public:
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CameraView() {
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fRX = fRY = fRZ = 0;
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fShaderIndex = 0;
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fFrontFace = false;
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for (int i = 0;; i++) {
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SkString str;
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str.printf("/skimages/elephant%d.jpeg", i);
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SkBitmap bm;
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if (decode_file(str.c_str(), &bm)) {
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SkRect src = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) };
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SkRect dst = { -150, -150, 150, 150 };
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SkMatrix matrix;
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matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit);
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fShaders.push_back(bm.makeShader(&matrix));
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} else {
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break;
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}
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}
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this->setBGColor(0xFFDDDDDD);
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}
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protected:
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SkString name() override { return SkString("Camera"); }
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void onDrawContent(SkCanvas* canvas) override {
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canvas->translate(this->width()/2, this->height()/2);
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Sk3DView view;
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view.rotateX(fRX);
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view.rotateY(fRY);
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view.applyToCanvas(canvas);
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SkPaint paint;
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if (fShaders.count() > 0) {
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bool frontFace = view.dotWithNormal(0, 0, SK_Scalar1) < 0;
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if (frontFace != fFrontFace) {
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fFrontFace = frontFace;
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fShaderIndex = (fShaderIndex + 1) % fShaders.count();
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}
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paint.setAntiAlias(true);
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paint.setShader(fShaders[fShaderIndex]);
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paint.setFilterQuality(kLow_SkFilterQuality);
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SkRect r = { -150, -150, 150, 150 };
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canvas->drawRoundRect(r, 30, 30, paint);
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}
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}
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bool onAnimate(const AnimTimer& timer) override {
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if (timer.isStopped()) {
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fRY = 0;
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} else {
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fRY = timer.scaled(90, 360);
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}
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return true;
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}
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private:
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SkScalar fRX, fRY, fRZ;
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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new CameraView(); )
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