/*
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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 "SkottieSlide.h"
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#if defined(SK_ENABLE_SKOTTIE)
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#include "SkAnimTimer.h"
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#include "SkCanvas.h"
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#include "SkFont.h"
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#include "SkOSPath.h"
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#include "Skottie.h"
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#include "SkottieUtils.h"
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#include <cmath>
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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: %lu 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: %lu",
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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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skottie::Animation::Builder builder;
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fAnimation = builder
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.setLogger(logger)
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.setResourceProvider(
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skottie_utils::FileResourceProvider::Make(SkOSPath::Dirname(fPath.c_str())))
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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->setShowInval(fShowAnimationInval);
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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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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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fAnimation->render(canvas, &dstR);
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if (fShowAnimationStats) {
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draw_stats_box(canvas, fAnimationStats);
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}
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}
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}
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bool SkottieSlide::animate(const SkAnimTimer& timer) {
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if (fTimeBase == 0) {
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// Reset the animation time.
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fTimeBase = timer.msec();
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}
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if (fAnimation) {
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const auto t = timer.msec() - fTimeBase;
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const auto d = fAnimation->duration() * 1000;
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fAnimation->seek(std::fmod(t, d) / d);
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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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break;
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default:
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break;
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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, sk_app::Window::InputState state, uint32_t) {
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switch (state) {
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case sk_app::Window::kUp_InputState:
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fShowAnimationInval = !fShowAnimationInval;
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fShowAnimationStats = !fShowAnimationStats;
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fAnimation->setShowInval(fShowAnimationInval);
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break;
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default:
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break;
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}
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return false;
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}
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#endif // SK_ENABLE_SKOTTIE
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