tdesktop/Telegram/SourceFiles/storage/localimageloader.h

300 lines
8.1 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "base/variant.h"
enum class CompressConfirm {
Auto,
Yes,
No,
None,
};
enum class SendMediaType {
Photo,
Audio,
File,
};
struct SendMediaPrepare {
SendMediaPrepare(const QString &file, const PeerId &peer, SendMediaType type, MsgId replyTo) : id(rand_value<PhotoId>()), file(file), peer(peer), type(type), replyTo(replyTo) {
}
SendMediaPrepare(const QImage &img, const PeerId &peer, SendMediaType type, MsgId replyTo) : id(rand_value<PhotoId>()), img(img), peer(peer), type(type), replyTo(replyTo) {
}
SendMediaPrepare(const QByteArray &data, const PeerId &peer, SendMediaType type, MsgId replyTo) : id(rand_value<PhotoId>()), data(data), peer(peer), type(type), replyTo(replyTo) {
}
SendMediaPrepare(const QByteArray &data, int duration, const PeerId &peer, SendMediaType type, MsgId replyTo) : id(rand_value<PhotoId>()), data(data), peer(peer), type(type), duration(duration), replyTo(replyTo) {
}
PhotoId id;
QString file;
QImage img;
QByteArray data;
PeerId peer;
SendMediaType type;
int duration = 0;
MsgId replyTo;
};
using SendMediaPrepareList = QList<SendMediaPrepare>;
using UploadFileParts = QMap<int, QByteArray>;
struct SendMediaReady {
SendMediaReady() = default; // temp
SendMediaReady(SendMediaType type, const QString &file, const QString &filename, int32 filesize, const QByteArray &data, const uint64 &id, const uint64 &thumbId, const QString &thumbExt, const PeerId &peer, const MTPPhoto &photo, const PreparedPhotoThumbs &photoThumbs, const MTPDocument &document, const QByteArray &jpeg, MsgId replyTo)
: replyTo(replyTo)
, type(type)
, file(file)
, filename(filename)
, filesize(filesize)
, data(data)
, thumbExt(thumbExt)
, id(id)
, thumbId(thumbId)
, peer(peer)
, photo(photo)
, document(document)
, photoThumbs(photoThumbs) {
if (!jpeg.isEmpty()) {
int32 size = jpeg.size();
for (int32 i = 0, part = 0; i < size; i += UploadPartSize, ++part) {
parts.insert(part, jpeg.mid(i, UploadPartSize));
}
jpeg_md5.resize(32);
hashMd5Hex(jpeg.constData(), jpeg.size(), jpeg_md5.data());
}
}
MsgId replyTo;
SendMediaType type;
QString file, filename;
int32 filesize;
QByteArray data;
QString thumbExt;
uint64 id, thumbId; // id always file-id of media, thumbId is file-id of thumb ( == id for photos)
PeerId peer;
MTPPhoto photo;
MTPDocument document;
PreparedPhotoThumbs photoThumbs;
UploadFileParts parts;
QByteArray jpeg_md5;
QString caption;
};
using TaskId = void*; // no interface, just id
class Task {
public:
virtual void process() = 0; // is executed in a separate thread
virtual void finish() = 0; // is executed in the same as TaskQueue thread
virtual ~Task() = default;
TaskId id() const {
return static_cast<TaskId>(const_cast<Task*>(this));
}
};
using TaskPtr = QSharedPointer<Task>;
using TasksList = QList<TaskPtr>;
class TaskQueueWorker;
class TaskQueue : public QObject {
Q_OBJECT
public:
TaskQueue(QObject *parent, int32 stopTimeoutMs = 0); // <= 0 - never stop worker
TaskId addTask(TaskPtr task);
void addTasks(const TasksList &tasks);
void cancelTask(TaskId id); // this task finish() won't be called
~TaskQueue();
signals:
void taskAdded();
public slots:
void onTaskProcessed();
void stop();
private:
friend class TaskQueueWorker;
void wakeThread();
TasksList _tasksToProcess, _tasksToFinish;
QMutex _tasksToProcessMutex, _tasksToFinishMutex;
QThread *_thread;
TaskQueueWorker *_worker;
QTimer *_stopTimer;
};
class TaskQueueWorker : public QObject {
Q_OBJECT
public:
TaskQueueWorker(TaskQueue *queue) : _queue(queue) {
}
signals:
void taskProcessed();
public slots:
void onTaskAdded();
private:
TaskQueue *_queue;
bool _inTaskAdded = false;
};
struct FileLoadTo {
FileLoadTo(const PeerId &peer, bool silent, MsgId replyTo)
: peer(peer)
, silent(silent)
, replyTo(replyTo) {
}
PeerId peer;
bool silent;
MsgId replyTo;
};
struct FileLoadResult {
FileLoadResult(const uint64 &id, const FileLoadTo &to, const QString &caption)
: id(id)
, to(to)
, caption(caption) {
}
uint64 id;
FileLoadTo to;
SendMediaType type = SendMediaType::File;
QString filepath;
QByteArray content;
QString filename;
QString filemime;
int32 filesize = 0;
UploadFileParts fileparts;
QByteArray filemd5;
int32 partssize;
uint64 thumbId = 0; // id is always file-id of media, thumbId is file-id of thumb ( == id for photos)
QString thumbname;
UploadFileParts thumbparts;
QByteArray thumbmd5;
QPixmap thumb;
MTPPhoto photo;
MTPDocument document;
PreparedPhotoThumbs photoThumbs;
QString caption;
void setFileData(const QByteArray &filedata) {
if (filedata.isEmpty()) {
partssize = 0;
} else {
partssize = filedata.size();
for (int32 i = 0, part = 0; i < partssize; i += UploadPartSize, ++part) {
fileparts.insert(part, filedata.mid(i, UploadPartSize));
}
filemd5.resize(32);
hashMd5Hex(filedata.constData(), filedata.size(), filemd5.data());
}
}
void setThumbData(const QByteArray &thumbdata) {
if (!thumbdata.isEmpty()) {
int32 size = thumbdata.size();
for (int32 i = 0, part = 0; i < size; i += UploadPartSize, ++part) {
thumbparts.insert(part, thumbdata.mid(i, UploadPartSize));
}
thumbmd5.resize(32);
hashMd5Hex(thumbdata.constData(), thumbdata.size(), thumbmd5.data());
}
}
};
typedef QSharedPointer<FileLoadResult> FileLoadResultPtr;
class FileLoadTask final : public Task {
public:
struct Image {
QImage data;
bool animated = false;
};
struct Song {
int duration = -1;
QString title;
QString performer;
QImage cover;
};
struct Video {
bool isGifv = false;
int duration = -1;
QImage thumbnail;
};
struct MediaInformation {
QString filemime;
base::variant<Image, Song, Video> media;
};
static std::unique_ptr<MediaInformation> ReadMediaInformation(const QString &filepath, const QByteArray &content, const QString &filemime);
FileLoadTask(const QString &filepath, std::unique_ptr<MediaInformation> information, SendMediaType type, const FileLoadTo &to, const QString &caption);
FileLoadTask(const QByteArray &content, const QImage &image, SendMediaType type, const FileLoadTo &to, const QString &caption);
FileLoadTask(const QByteArray &voice, int32 duration, const VoiceWaveform &waveform, const FileLoadTo &to, const QString &caption);
uint64 fileid() const {
return _id;
}
void process();
void finish();
private:
static bool CheckForSong(const QString &filepath, const QByteArray &content, std::unique_ptr<MediaInformation> &result);
static bool CheckForVideo(const QString &filepath, const QByteArray &content, std::unique_ptr<MediaInformation> &result);
static bool CheckForImage(const QString &filepath, const QByteArray &content, std::unique_ptr<MediaInformation> &result);
template <typename Mimes, typename Extensions>
static bool CheckMimeOrExtensions(const QString &filepath, const QString &filemime, Mimes &mimes, Extensions &extensions);
std::unique_ptr<MediaInformation> readMediaInformation(const QString &filemime) const {
return ReadMediaInformation(_filepath, _content, filemime);
}
uint64 _id;
FileLoadTo _to;
QString _filepath;
QByteArray _content;
std::unique_ptr<MediaInformation> _information;
QImage _image;
int32 _duration = 0;
VoiceWaveform _waveform;
SendMediaType _type;
QString _caption;
FileLoadResultPtr _result;
};