| /* |
| * Copyright 2020 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/android/SkAnimatedImage.h" |
| #include "include/codec/SkAndroidCodec.h" |
| #include "include/codec/SkCodec.h" |
| #include "include/core/SkBlendMode.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkData.h" |
| #include "include/core/SkImage.h" |
| #include "include/core/SkPathBuilder.h" |
| #include "include/core/SkPathTypes.h" |
| #include "include/core/SkPicture.h" |
| #include "include/core/SkPictureRecorder.h" |
| #include "include/core/SkRRect.h" |
| #include "tools/Resources.h" |
| |
| static sk_sp<SkPicture> post_processor(const SkRect& bounds) { |
| int radius = (bounds.width() + bounds.height()) / 6; |
| SkPathBuilder pathBuilder; |
| pathBuilder.setFillType(SkPathFillType::kInverseEvenOdd) |
| .addRRect(SkRRect::MakeRectXY(bounds, radius, radius)); |
| |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| paint.setColor(SK_ColorTRANSPARENT); |
| paint.setBlendMode(SkBlendMode::kSrc); |
| |
| SkPictureRecorder recorder; |
| auto* canvas = recorder.beginRecording(bounds); |
| canvas->drawPath(pathBuilder.detach(), paint); |
| return recorder.finishRecordingAsPicture(); |
| } |
| |
| class AnimatedImageGM : public skiagm::GM { |
| const char* fPath; |
| const char* fName; |
| const int fStep; |
| const SkIRect fCropRect; |
| SkISize fSize; |
| int fTranslate; |
| sk_sp<SkData> fData; |
| |
| static const int kMaxFrames = 2; |
| |
| void init() { |
| if (!fData) { |
| fData = GetResourceAsData(fPath); |
| auto codec = SkCodec::MakeFromData(fData); |
| auto dimensions = codec->dimensions(); |
| |
| fTranslate = std::max(dimensions.width(), dimensions.height()) // may be rotated |
| * 1.25f // will be scaled up |
| + 2; // padding |
| |
| fSize = { fTranslate * kMaxFrames |
| * 2 // crop and no-crop |
| * 2, // post-process and no post-process |
| fTranslate * 4 // 4 scales |
| * 2 }; // makePictureSnapshot and getCurrentFrame |
| } |
| } |
| public: |
| AnimatedImageGM(const char* path, const char* name, int step, SkIRect cropRect) |
| : fPath(path) |
| , fName(name) |
| , fStep(step) |
| , fCropRect(cropRect) |
| , fSize{0, 0} |
| , fTranslate(0) |
| {} |
| ~AnimatedImageGM() override = default; |
| |
| SkString getName() const override { return SkStringPrintf("%s_animated_image", fName); } |
| |
| SkISize getISize() override { |
| this->init(); |
| return fSize; |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| this->init(); |
| for (bool usePic : { true, false }) { |
| auto drawProc = [canvas, usePic](const sk_sp<SkAnimatedImage>& animatedImage) { |
| if (usePic) { |
| sk_sp<SkPicture> pic = animatedImage->makePictureSnapshot(); |
| canvas->drawPicture(pic); |
| } else { |
| auto image = animatedImage->getCurrentFrame(); |
| canvas->drawImage(image, 0, 0); |
| } |
| }; |
| for (float scale : { 1.25f, 1.0f, .75f, .5f }) { |
| canvas->save(); |
| for (bool doCrop : { false, true }) { |
| for (bool doPostProcess : { false, true }) { |
| auto codec = SkCodec::MakeFromData(fData); |
| const auto origin = codec->getOrigin(); |
| auto androidCodec = SkAndroidCodec::MakeFromCodec(std::move(codec)); |
| auto info = androidCodec->getInfo(); |
| const auto unscaledSize = SkEncodedOriginSwapsWidthHeight(origin) |
| ? SkISize{ info.height(), info.width() } : info.dimensions(); |
| |
| SkISize scaledSize = { SkScalarFloorToInt(unscaledSize.width() * scale) , |
| SkScalarFloorToInt(unscaledSize.height() * scale) }; |
| info = info.makeDimensions(scaledSize); |
| |
| auto cropRect = SkIRect::MakeSize(scaledSize); |
| if (doCrop) { |
| auto matrix = SkMatrix::RectToRect(SkRect::Make(unscaledSize), |
| SkRect::Make(scaledSize)); |
| matrix.preConcat(SkEncodedOriginToMatrix(origin, |
| unscaledSize.width(), unscaledSize.height())); |
| SkRect cropRectFloat = SkRect::Make(fCropRect); |
| matrix.mapRect(&cropRectFloat); |
| cropRectFloat.roundOut(&cropRect); |
| } |
| |
| sk_sp<SkPicture> postProcessor = doPostProcess |
| ? post_processor(SkRect::Make(cropRect.size())) : nullptr; |
| auto animatedImage = SkAnimatedImage::Make(std::move(androidCodec), |
| info, cropRect, std::move(postProcessor)); |
| animatedImage->setRepetitionCount(0); |
| |
| for (int frame = 0; frame < kMaxFrames; frame++) { |
| { |
| SkAutoCanvasRestore acr(canvas, doCrop); |
| if (doCrop) { |
| canvas->translate(cropRect.left(), cropRect.top()); |
| } |
| drawProc(animatedImage); |
| } |
| |
| canvas->translate(fTranslate, 0); |
| const auto duration = animatedImage->currentFrameDuration(); |
| if (duration == SkAnimatedImage::kFinished) { |
| break; |
| } |
| for (int i = 0; i < fStep; i++) { |
| animatedImage->decodeNextFrame(); |
| } |
| } |
| } |
| } |
| canvas->restore(); |
| canvas->translate(0, fTranslate); |
| } |
| } |
| } |
| }; |
| |
| DEF_GM( return new AnimatedImageGM("images/stoplight_h.webp", "stoplight", 2, |
| // Deliberately not centered in X or Y, and shows all three |
| // lights, but otherwise arbitrary. |
| SkIRect::MakeLTRB(5, 6, 11, 29)); ) |
| DEF_GM( return new AnimatedImageGM("images/flightAnim.gif", "flight", 20, |
| // Deliberately starts in the upper left corner to exercise |
| // a special case, but otherwise arbitrary. |
| SkIRect::MakeLTRB(0, 0, 300, 200)); ) |