c9c4e2e9ef
Relocate under modules/audioplayer and package as a standalone component. Change-Id: If9dc72bb0abe170049a514c9931186703a3c138a Reviewed-on: https://skia-review.googlesource.com/c/skia/+/310058 Commit-Queue: Florin Malita <fmalita@google.com> Reviewed-by: Mike Reed <reed@google.com>
366 lines
12 KiB
C++
366 lines
12 KiB
C++
/*
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* Copyright 2017 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 "tools/viewer/SkottieSlide.h"
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#if defined(SK_ENABLE_SKOTTIE)
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#include "include/core/SkCanvas.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkTime.h"
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#include "modules/audioplayer/SkAudioPlayer.h"
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#include "modules/skottie/include/Skottie.h"
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#include "modules/skottie/utils/SkottieUtils.h"
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#include "modules/skresources/include/SkResources.h"
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#include "src/utils/SkOSPath.h"
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#include "tools/timer/TimeUtils.h"
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#include <cmath>
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#include "imgui.h"
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namespace {
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class Track final : public skresources::ExternalTrackAsset {
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public:
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explicit Track(std::unique_ptr<SkAudioPlayer> player) : fPlayer(std::move(player)) {}
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private:
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void seek(float t) override {
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if (fPlayer->isStopped() && t >=0) {
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fPlayer->play();
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}
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if (fPlayer->isPlaying()) {
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if (t < 0) {
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fPlayer->stop();
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} else {
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static constexpr float kTolerance = 0.075f;
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const auto player_pos = fPlayer->time();
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if (std::abs(player_pos - t) > kTolerance) {
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fPlayer->setTime(t);
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}
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}
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}
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}
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const std::unique_ptr<SkAudioPlayer> fPlayer;
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};
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class AudioProviderProxy final : public skresources::ResourceProviderProxyBase {
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public:
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explicit AudioProviderProxy(sk_sp<skresources::ResourceProvider> rp)
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: INHERITED(std::move(rp)) {}
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private:
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sk_sp<skresources::ExternalTrackAsset> loadAudioAsset(const char path[],
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const char name[],
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const char[] /*id*/) override {
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if (auto data = this->load(path, name)) {
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if (auto player = SkAudioPlayer::Make(std::move(data))) {
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return sk_make_sp<Track>(std::move(player));
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}
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}
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return nullptr;
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}
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using INHERITED = skresources::ResourceProviderProxyBase;
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};
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} // namespace
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static void draw_stats_box(SkCanvas* canvas, const skottie::Animation::Builder::Stats& stats) {
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static constexpr SkRect kR = { 10, 10, 280, 120 };
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static constexpr SkScalar kTextSize = 20;
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(0xffeeeeee);
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SkFont font(nullptr, kTextSize);
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canvas->drawRect(kR, paint);
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paint.setColor(SK_ColorBLACK);
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const auto json_size = SkStringPrintf("Json size: %zu bytes",
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stats.fJsonSize);
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canvas->drawString(json_size, kR.x() + 10, kR.y() + kTextSize * 1, font, paint);
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const auto animator_count = SkStringPrintf("Animator count: %zu",
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stats.fAnimatorCount);
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canvas->drawString(animator_count, kR.x() + 10, kR.y() + kTextSize * 2, font, paint);
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const auto json_parse_time = SkStringPrintf("Json parse time: %.3f ms",
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stats.fJsonParseTimeMS);
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canvas->drawString(json_parse_time, kR.x() + 10, kR.y() + kTextSize * 3, font, paint);
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const auto scene_parse_time = SkStringPrintf("Scene build time: %.3f ms",
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stats.fSceneParseTimeMS);
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canvas->drawString(scene_parse_time, kR.x() + 10, kR.y() + kTextSize * 4, font, paint);
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const auto total_load_time = SkStringPrintf("Total load time: %.3f ms",
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stats.fTotalLoadTimeMS);
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canvas->drawString(total_load_time, kR.x() + 10, kR.y() + kTextSize * 5, font, paint);
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paint.setStyle(SkPaint::kStroke_Style);
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canvas->drawRect(kR, paint);
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}
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SkottieSlide::SkottieSlide(const SkString& name, const SkString& path)
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: fPath(path) {
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fName = name;
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}
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void SkottieSlide::load(SkScalar w, SkScalar h) {
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class Logger final : public skottie::Logger {
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public:
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struct LogEntry {
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SkString fMessage,
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fJSON;
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};
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void log(skottie::Logger::Level lvl, const char message[], const char json[]) override {
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auto& log = lvl == skottie::Logger::Level::kError ? fErrors : fWarnings;
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log.push_back({ SkString(message), json ? SkString(json) : SkString() });
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}
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void report() const {
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SkDebugf("Animation loaded with %lu error%s, %lu warning%s.\n",
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fErrors.size(), fErrors.size() == 1 ? "" : "s",
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fWarnings.size(), fWarnings.size() == 1 ? "" : "s");
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const auto& show = [](const LogEntry& log, const char prefix[]) {
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SkDebugf("%s%s", prefix, log.fMessage.c_str());
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if (!log.fJSON.isEmpty())
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SkDebugf(" : %s", log.fJSON.c_str());
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SkDebugf("\n");
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};
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for (const auto& err : fErrors) show(err, " !! ");
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for (const auto& wrn : fWarnings) show(wrn, " ?? ");
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}
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private:
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std::vector<LogEntry> fErrors,
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fWarnings;
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};
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auto logger = sk_make_sp<Logger>();
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uint32_t flags = 0;
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if (fPreferGlyphPaths) {
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flags |= skottie::Animation::Builder::kPreferEmbeddedFonts;
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}
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skottie::Animation::Builder builder(flags);
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auto resource_provider =
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sk_make_sp<AudioProviderProxy>(
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skresources::DataURIResourceProviderProxy::Make(
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skresources::FileResourceProvider::Make(SkOSPath::Dirname(fPath.c_str()),
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/*predecode=*/true),
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/*predecode=*/true));
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static constexpr char kInterceptPrefix[] = "__";
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auto precomp_interceptor =
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sk_make_sp<skottie_utils::ExternalAnimationPrecompInterceptor>(resource_provider,
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kInterceptPrefix);
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fAnimation = builder
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.setLogger(logger)
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.setResourceProvider(std::move(resource_provider))
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.setPrecompInterceptor(std::move(precomp_interceptor))
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.makeFromFile(fPath.c_str());
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fAnimationStats = builder.getStats();
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fWinSize = SkSize::Make(w, h);
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fTimeBase = 0; // force a time reset
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if (fAnimation) {
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fAnimation->seek(0);
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fFrameTimes.resize(SkScalarCeilToInt(fAnimation->duration() * fAnimation->fps()));
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SkDebugf("Loaded Bodymovin animation v: %s, size: [%f %f]\n",
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fAnimation->version().c_str(),
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fAnimation->size().width(),
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fAnimation->size().height());
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logger->report();
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} else {
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SkDebugf("failed to load Bodymovin animation: %s\n", fPath.c_str());
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}
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}
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void SkottieSlide::unload() {
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fAnimation.reset();
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}
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void SkottieSlide::resize(SkScalar w, SkScalar h) {
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fWinSize = { w, h };
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}
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SkISize SkottieSlide::getDimensions() const {
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// We always scale to fill the window.
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return fWinSize.toCeil();
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}
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void SkottieSlide::draw(SkCanvas* canvas) {
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if (fAnimation) {
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SkAutoCanvasRestore acr(canvas, true);
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const auto dstR = SkRect::MakeSize(fWinSize);
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{
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const auto t0 = SkTime::GetNSecs();
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fAnimation->render(canvas, &dstR);
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// TODO: this does not capture GPU flush time!
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const auto frame_index = static_cast<size_t>(fCurrentFrame);
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fFrameTimes[frame_index] = static_cast<float>((SkTime::GetNSecs() - t0) * 1e-6);
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}
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if (fShowAnimationStats) {
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draw_stats_box(canvas, fAnimationStats);
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}
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if (fShowAnimationInval) {
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const auto t = SkMatrix::MakeRectToRect(SkRect::MakeSize(fAnimation->size()),
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dstR,
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SkMatrix::kCenter_ScaleToFit);
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SkPaint fill, stroke;
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fill.setAntiAlias(true);
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fill.setColor(0x40ff0000);
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stroke.setAntiAlias(true);
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stroke.setColor(0xffff0000);
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stroke.setStyle(SkPaint::kStroke_Style);
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for (const auto& r : fInvalController) {
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SkRect bounds;
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t.mapRect(&bounds, r);
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canvas->drawRect(bounds, fill);
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canvas->drawRect(bounds, stroke);
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}
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}
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if (fShowUI) {
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this->renderUI();
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}
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}
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}
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bool SkottieSlide::animate(double nanos) {
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if (!fTimeBase) {
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// Reset the animation time.
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fTimeBase = nanos;
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}
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if (fAnimation) {
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fInvalController.reset();
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const auto frame_count = fAnimation->duration() * fAnimation->fps();
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if (!fDraggingProgress) {
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// Clock-driven progress: update current frame.
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const double t_sec = (nanos - fTimeBase) * 1e-9;
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fCurrentFrame = std::fmod(t_sec * fAnimation->fps(), frame_count);
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} else {
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// Slider-driven progress: update the time origin.
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fTimeBase = nanos - fCurrentFrame / fAnimation->fps() * 1e9;
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}
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// Sanitize and rate-lock the current frame.
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fCurrentFrame = SkTPin<float>(fCurrentFrame, 0.0f, frame_count - 1);
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if (fFrameRate > 0) {
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const auto fps_scale = fFrameRate / fAnimation->fps();
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fCurrentFrame = std::trunc(fCurrentFrame * fps_scale) / fps_scale;
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}
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fAnimation->seekFrame(fCurrentFrame, fShowAnimationInval ? &fInvalController
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: nullptr);
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}
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return true;
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}
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bool SkottieSlide::onChar(SkUnichar c) {
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switch (c) {
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case 'I':
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fShowAnimationStats = !fShowAnimationStats;
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return true;
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case 'G':
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fPreferGlyphPaths = !fPreferGlyphPaths;
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this->load(fWinSize.width(), fWinSize.height());
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return true;
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}
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return INHERITED::onChar(c);
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}
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bool SkottieSlide::onMouse(SkScalar x, SkScalar y, skui::InputState state, skui::ModifierKey) {
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switch (state) {
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case skui::InputState::kUp:
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fShowAnimationInval = !fShowAnimationInval;
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fShowAnimationStats = !fShowAnimationStats;
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break;
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default:
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break;
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}
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fShowUI = this->UIArea().contains(x, y);
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return false;
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}
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SkRect SkottieSlide::UIArea() const {
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static constexpr float kUIHeight = 120.0f;
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return SkRect::MakeXYWH(0, fWinSize.height() - kUIHeight, fWinSize.width(), kUIHeight);
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}
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void SkottieSlide::renderUI() {
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static constexpr auto kUI_opacity = 0.35f,
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kUI_hist_height = 50.0f,
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kUI_fps_width = 100.0f;
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auto add_frame_rate_option = [this](const char* label, double rate) {
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const auto is_selected = (fFrameRate == rate);
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if (ImGui::Selectable(label, is_selected)) {
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fFrameRate = rate;
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fFrameRateLabel = label;
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}
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if (is_selected) {
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ImGui::SetItemDefaultFocus();
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}
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};
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ImGui::SetNextWindowBgAlpha(kUI_opacity);
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if (ImGui::Begin("Skottie Controls", nullptr, ImGuiWindowFlags_NoDecoration |
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ImGuiWindowFlags_NoResize |
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ImGuiWindowFlags_NoMove |
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ImGuiWindowFlags_NoSavedSettings |
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ImGuiWindowFlags_NoFocusOnAppearing |
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ImGuiWindowFlags_NoNav)) {
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const auto ui_area = this->UIArea();
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ImGui::SetWindowPos(ImVec2(ui_area.x(), ui_area.y()));
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ImGui::SetWindowSize(ImVec2(ui_area.width(), ui_area.height()));
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ImGui::PushItemWidth(-1);
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ImGui::PlotHistogram("", fFrameTimes.data(), fFrameTimes.size(),
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0, nullptr, FLT_MAX, FLT_MAX, ImVec2(0, kUI_hist_height));
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ImGui::SliderFloat("", &fCurrentFrame, 0, fAnimation->duration() * fAnimation->fps() - 1);
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fDraggingProgress = ImGui::IsItemActive();
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ImGui::PopItemWidth();
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ImGui::PushItemWidth(kUI_fps_width);
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if (ImGui::BeginCombo("FPS", fFrameRateLabel)) {
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add_frame_rate_option("", 0.0);
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add_frame_rate_option("Native", fAnimation->fps());
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add_frame_rate_option( "1", 1.0);
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add_frame_rate_option("15", 15.0);
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add_frame_rate_option("24", 24.0);
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add_frame_rate_option("30", 30.0);
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add_frame_rate_option("60", 60.0);
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ImGui::EndCombo();
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}
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ImGui::PopItemWidth();
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}
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ImGui::End();
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}
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#endif // SK_ENABLE_SKOTTIE
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