| /* |
| * 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/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, 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().size(); ++j) { |
| SkMatrix trans = SkMatrix::Translate(-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().size(); ++j) { |
| this->surfaces()[j]->flush(); |
| } |
| } |
| |
| class ZoomAnimation : public SKPAnimationBench::Animation { |
| public: |
| ZoomAnimation(SkScalar zoomMax, double zoomPeriodMs) |
| : fZoomMax(zoomMax) |
| , fZoomPeriodMs(zoomPeriodMs) { |
| } |
| |
| const char* getTag() override { return "zoom"; } |
| |
| void preConcatFrameMatrix(double animationTimeMs, const SkIRect& devBounds, |
| SkMatrix* drawMatrix) override { |
| 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); |
| } |