41248071ac
gm, slides, and samples no longer need to know about the implementation
details of AnimTimer.
This
virtual bool onAnimate(const AnimTimer&);
becomes this:
virtual bool onAnimate(double /*nanoseconds*/);
which is much easier to reason about.
AnimTimer itself is now part of viewer.
Change-Id: Ib70bf7a0798b1991f25204ae84f70463cdbeb358
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/226838
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
77 lines
2.3 KiB
C++
77 lines
2.3 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/SkShader.h"
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#include "include/core/SkString.h"
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#include "include/utils/SkCamera.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 "tools/Resources.h"
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#include "tools/timer/TimeUtils.h"
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namespace {
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class CameraView : public Sample {
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SkTArray<sk_sp<SkShader>> fShaders;
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int fShaderIndex = 0;
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bool fFrontFace = false;
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SkScalar fRX = 0;
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SkScalar fRY = 0;
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SkString name() override { return SkString("Camera"); }
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void onOnceBeforeDraw() override {
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for (const char* resource : {
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"images/mandrill_512_q075.jpg",
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"images/dog.jpg",
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"images/gamut.png",
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}) {
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SkBitmap bm;
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if (GetResourceAsBitmap(resource, &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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}
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}
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this->setBGColor(0xFFDDDDDD);
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}
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void onDrawContent(SkCanvas* canvas) override {
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if (fShaders.count() > 0) {
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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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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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SkPaint paint;
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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(double nanos) override {
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fRY = nanos ? TimeUtils::Scaled(1e-9 * nanos, 90, 360) : 0;
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return true;
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}
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};
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} // namespace
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DEF_SAMPLE( return new CameraView(); )
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