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- /*
- * 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 "bench/SKPAnimationBench.h"
- #include "include/core/SkMultiPictureDraw.h"
- #include "include/core/SkSurface.h"
- #include "tools/flags/CommandLineFlags.h"
- SKPAnimationBench::SKPAnimationBench(const char* name, const SkPicture* pic, const SkIRect& clip,
- sk_sp<Animation> animation, bool doLooping)
- : INHERITED(name, pic, clip, 1.0, false, doLooping)
- , fAnimation(std::move(animation)) {
- fUniqueName.printf("%s_%s", name, fAnimation->getTag());
- }
- const char* SKPAnimationBench::onGetUniqueName() {
- return fUniqueName.c_str();
- }
- void SKPAnimationBench::onPerCanvasPreDraw(SkCanvas* canvas) {
- INHERITED::onPerCanvasPreDraw(canvas);
- fDevBounds = canvas->getDeviceClipBounds();
- SkAssertResult(!fDevBounds.isEmpty());
- }
- void SKPAnimationBench::drawPicture() {
- for (int j = 0; j < this->tileRects().count(); ++j) {
- SkMatrix trans = SkMatrix::MakeTrans(-1.f * this->tileRects()[j].fLeft,
- -1.f * this->tileRects()[j].fTop);
- fAnimation->preConcatFrameMatrix(fAnimationTime.nextRangeF(0, 1000), fDevBounds, &trans);
- this->surfaces()[j]->getCanvas()->drawPicture(this->picture(), &trans, nullptr);
- }
- for (int j = 0; j < this->tileRects().count(); ++j) {
- this->surfaces()[j]->getCanvas()->flush();
- }
- }
- class ZoomAnimation : public SKPAnimationBench::Animation {
- public:
- ZoomAnimation(SkScalar zoomMax, double zoomPeriodMs)
- : fZoomMax(zoomMax)
- , fZoomPeriodMs(zoomPeriodMs) {
- }
- virtual const char* getTag() { return "zoom"; }
- virtual void preConcatFrameMatrix(double animationTimeMs, const SkIRect& devBounds,
- SkMatrix* drawMatrix) {
- double t = fmod(animationTimeMs / fZoomPeriodMs, 1.0); // t is in [0, 1).
- t = fabs(2 * t - 1); // Make t ping-pong between 0 and 1
- SkScalar zoom = static_cast<SkScalar>(pow(fZoomMax, t));
- SkPoint center = SkPoint::Make((devBounds.fLeft + devBounds.fRight) / 2.0f,
- (devBounds.fTop + devBounds.fBottom) / 2.0f);
- drawMatrix->preTranslate(center.fX, center.fY);
- drawMatrix->preScale(zoom, zoom);
- drawMatrix->preTranslate(-center.fX, -center.fY);
- }
- private:
- double fZoomMax;
- double fZoomPeriodMs;
- };
- sk_sp<SKPAnimationBench::Animation> SKPAnimationBench::MakeZoomAnimation(SkScalar zoomMax,
- double zoomPeriodMs) {
- return sk_make_sp<ZoomAnimation>(zoomMax, zoomPeriodMs);
- }
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