/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "SkMovie.h" #include "SkCanvas.h" #include "SkPaint.h" // We should never see this in normal operation since our time values are // 0-based. So we use it as a sentinal. #define UNINITIALIZED_MSEC ((SkMSec)-1) SkMovie::SkMovie() { fInfo.fDuration = UNINITIALIZED_MSEC; // uninitialized fCurrTime = UNINITIALIZED_MSEC; // uninitialized fNeedBitmap = true; } void SkMovie::ensureInfo() { if (fInfo.fDuration == UNINITIALIZED_MSEC && !this->onGetInfo(&fInfo)) memset(&fInfo, 0, sizeof(fInfo)); // failure } SkMSec SkMovie::duration() { this->ensureInfo(); return fInfo.fDuration; } int SkMovie::width() { this->ensureInfo(); return fInfo.fWidth; } int SkMovie::height() { this->ensureInfo(); return fInfo.fHeight; } int SkMovie::isOpaque() { this->ensureInfo(); return fInfo.fIsOpaque; } bool SkMovie::setTime(SkMSec time) { SkMSec dur = this->duration(); if (time > dur) time = dur; bool changed = false; if (time != fCurrTime) { fCurrTime = time; changed = this->onSetTime(time); fNeedBitmap |= changed; } return changed; } const SkBitmap& SkMovie::bitmap() { if (fCurrTime == UNINITIALIZED_MSEC) // uninitialized this->setTime(0); if (fNeedBitmap) { if (!this->onGetBitmap(&fBitmap)) // failure fBitmap.reset(); fNeedBitmap = false; } return fBitmap; } //////////////////////////////////////////////////////////////////// #include "SkStream.h" SkMovie* SkMovie::DecodeMemory(const void* data, size_t length) { SkMemoryStream stream(data, length, false); return SkMovie::DecodeStream(&stream); } SkMovie* SkMovie::DecodeFile(const char path[]) { std::unique_ptr<SkStreamRewindable> stream = SkStream::MakeFromFile(path); return stream ? SkMovie::DecodeStream(stream.get()) : nullptr; }