1 /*
2 * Copyright 2015 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "bench/GpuTools.h"
9 #include "bench/SKPAnimationBench.h"
10 #include "include/core/SkSurface.h"
11 #include "tools/flags/CommandLineFlags.h"
12
13
SKPAnimationBench(const char * name,const SkPicture * pic,const SkIRect & clip,sk_sp<Animation> animation,bool doLooping)14 SKPAnimationBench::SKPAnimationBench(const char* name, const SkPicture* pic, const SkIRect& clip,
15 sk_sp<Animation> animation, bool doLooping)
16 : INHERITED(name, pic, clip, 1.0, doLooping)
17 , fAnimation(std::move(animation)) {
18 fUniqueName.printf("%s_%s", name, fAnimation->getTag());
19 }
20
onGetUniqueName()21 const char* SKPAnimationBench::onGetUniqueName() {
22 return fUniqueName.c_str();
23 }
24
onPerCanvasPreDraw(SkCanvas * canvas)25 void SKPAnimationBench::onPerCanvasPreDraw(SkCanvas* canvas) {
26 INHERITED::onPerCanvasPreDraw(canvas);
27 fDevBounds = canvas->getDeviceClipBounds();
28 SkAssertResult(!fDevBounds.isEmpty());
29 }
30
drawPicture()31 void SKPAnimationBench::drawPicture() {
32 for (int j = 0; j < this->tileRects().size(); ++j) {
33 SkMatrix trans = SkMatrix::Translate(-1.f * this->tileRects()[j].fLeft,
34 -1.f * this->tileRects()[j].fTop);
35 fAnimation->preConcatFrameMatrix(fAnimationTime.nextRangeF(0, 1000), fDevBounds, &trans);
36 this->surfaces()[j]->getCanvas()->drawPicture(this->picture(), &trans, nullptr);
37 }
38
39 for (int j = 0; j < this->tileRects().size(); ++j) {
40 skgpu::Flush(this->surfaces()[j].get());
41 }
42 }
43
44 class ZoomAnimation : public SKPAnimationBench::Animation {
45 public:
ZoomAnimation(SkScalar zoomMax,double zoomPeriodMs)46 ZoomAnimation(SkScalar zoomMax, double zoomPeriodMs)
47 : fZoomMax(zoomMax)
48 , fZoomPeriodMs(zoomPeriodMs) {
49 }
50
getTag()51 const char* getTag() override { return "zoom"; }
52
preConcatFrameMatrix(double animationTimeMs,const SkIRect & devBounds,SkMatrix * drawMatrix)53 void preConcatFrameMatrix(double animationTimeMs, const SkIRect& devBounds,
54 SkMatrix* drawMatrix) override {
55 double t = fmod(animationTimeMs / fZoomPeriodMs, 1.0); // t is in [0, 1).
56 t = fabs(2 * t - 1); // Make t ping-pong between 0 and 1
57 SkScalar zoom = static_cast<SkScalar>(pow(fZoomMax, t));
58
59 SkPoint center = SkPoint::Make((devBounds.fLeft + devBounds.fRight) / 2.0f,
60 (devBounds.fTop + devBounds.fBottom) / 2.0f);
61 drawMatrix->preTranslate(center.fX, center.fY);
62 drawMatrix->preScale(zoom, zoom);
63 drawMatrix->preTranslate(-center.fX, -center.fY);
64 }
65
66 private:
67 double fZoomMax;
68 double fZoomPeriodMs;
69 };
70
MakeZoomAnimation(SkScalar zoomMax,double zoomPeriodMs)71 sk_sp<SKPAnimationBench::Animation> SKPAnimationBench::MakeZoomAnimation(SkScalar zoomMax,
72 double zoomPeriodMs) {
73 return sk_make_sp<ZoomAnimation>(zoomMax, zoomPeriodMs);
74 }
75