quicktime.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program 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.
 *
 * This program 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

//
// Heavily based on ffmpeg code.
//
// Copyright (c) 2001 Fabrice Bellard.
// First version by Francois Revol revol@free.fr
// Seek function by Gael Chardon gael.dev@4now.net
//

#ifndef COMMON_QUICKTIME_H
#define COMMON_QUICKTIME_H

#include "common/array.h"
#include "common/scummsys.h"
#include "common/path.h"
#include "common/stream.h"
#include "common/rational.h"
#include "common/types.h"
#include "common/rect.h"

namespace Common {
    class MacResManager;

class QuickTimeParser {
public:
    QuickTimeParser();
    virtual ~QuickTimeParser();

    bool parseFile(const Path &filename);

    bool parseStream(SeekableReadStream *stream, DisposeAfterUse::Flag disposeFileHandle = DisposeAfterUse::YES);

    void close();

    void flattenEditLists();

    void setChunkBeginOffset(uint32 offset) { _beginOffset = offset; }

    uint32 getTimeScale() const { return _timeScale; }

    bool isOpen() const { return _fd != nullptr; }

    enum class QTVRType {
        OTHER,
        OBJECT,
        PANORAMA
    };

protected:
    // This is the file handle from which data is read from. It can be the actual file handle or a decompressed stream.
    SeekableReadStream *_fd;

    struct TimeToSampleEntry {
        int count;
        int duration; // media time
    };

    struct SampleToChunkEntry {
        uint32 first;
        uint32 count;
        uint32 id;
    };

    struct EditListEntry {
        uint32 trackDuration; // movie time
        uint32 timeOffset;    // movie time
        int32 mediaTime;      // media time
        Rational mediaRate;
    };

    struct Track;

    class SampleDesc {
    public:
        SampleDesc(Track *parentTrack, uint32 codecTag);
        virtual ~SampleDesc();

        uint32 getCodecTag() const { return _codecTag; }

        SeekableReadStream *_extraData;
        byte _objectTypeMP4;

    protected:
        Track *_parentTrack;
        uint32 _codecTag;
    };

    enum CodecType {
        CODEC_TYPE_MOV_OTHER,
        CODEC_TYPE_VIDEO,
        CODEC_TYPE_AUDIO,
        CODEC_TYPE_MIDI,
        CODEC_TYPE_PANO
    };

    enum class GraphicsMode {
        COPY                 = 0x0,   // Directly copy the source image over the destination.
        DITHER_COPY          = 0x40,  // Dither the image (if needed), otherwise copy.
        BLEND                = 0x20,  // Blend source and destination pixel colors using opcolor values.
        TRANSPARENT          = 0x24,  // Replace destination with source if not equal to opcolor.
        STRAIGHT_ALPHA       = 0x100, // Blend source and destination pixels, with the proportion controlled by the alpha channel.
        PREMUL_WHITE_ALPHA   = 0x101, // Blend after removing pre-multiplied white from the source.
        PREMUL_BLACK_ALPHA   = 0x102, // Blend after removing pre-multiplied black from the source.
        STRAIGHT_ALPHA_BLEND = 0x104, // Similar to straight alpha, but the alpha for each channel is combined with the corresponding opcolor channel.
        COMPOSITION          = 0x103  // Render offscreen and then dither-copy to the main screen (tracks only).
    };

    struct PanoramaNode {
        uint32 nodeID;
        uint32 timestamp;
    };

    struct PanoramaInformation {
        String name;
        uint32 defNodeID;
        float defZoom;
        Array<PanoramaNode> nodes;
    };

    struct PanoSampleHeader {
        uint32 nodeID;

        float defHPan;
        float defVPan;
        float defZoom;

        // Constraints for this node; zero for default
        float minHPan;
        float minVPan;
        float maxHPan;
        float maxVPan;
        float minZoom;

        int32 nameStrOffset;
        int32 commentStrOffset;
    };

    enum class HotSpotType {
        undefined,
        link,
        navg
    };

    struct PanoHotSpot {
        uint16 id;
        HotSpotType type;
        uint32 typeData; // for link and navg, the ID in the link and navg table

        // Canonical view for this hotspot
        float viewHPan;
        float viewVPan;
        float viewZoom;

        Rect rect;

        int32 mouseOverCursorID;
        int32 mouseDownCursorID;
        int32 mouseUpCursorID;

        int32 nameStrOffset;
        int32 commentStrOffset;
    };

    struct PanoHotSpotTable {
        Array<PanoHotSpot> hotSpots;
    };

    struct PanoStringTable {
        String strings;

        String getString(int32 offset) const;
    };

    struct PanoLink {
        uint16 id;
        uint16 toNodeID;

        // Values to set at the destination node
        float toHPan;
        float toVPan;
        float toZoom;

        int32 nameStrOffset;
        int32 commentStrOffset;
    };

    struct PanoLinkTable {
        Array<PanoLink> links;
    };

    struct PanoNavigation {
        uint16 id;

        uint32 hPan;
        uint32 vPan;
        uint32 zoom;

        Rect rect; // Starting rect for zoom out transitions

        // Values to set at the destination node
        int32 nameStrOffset;
        int32 commentStrOffset;
    };

    struct PanoNavigationTable {
        Array<PanoNavigation> navs;
    };

    struct PanoTrackSample {
        PanoSampleHeader hdr;
        PanoHotSpotTable hotSpotTable;
        PanoStringTable strTable;
        PanoLinkTable linkTable;
        PanoNavigationTable navTable;
    };

    struct Track {
        Track();
        ~Track();

        uint32 chunkCount;
        uint32 *chunkOffsets;
        int timeToSampleCount;
        TimeToSampleEntry *timeToSample;
        uint32 sampleToChunkCount;
        SampleToChunkEntry *sampleToChunk;
        uint32 sampleSize;
        uint32 sampleCount;
        uint32 *sampleSizes;
        uint32 keyframeCount;
        uint32 *keyframes;
        int32 timeScale; // media time

        uint16 width;
        uint16 height;
        CodecType codecType;

        Array<SampleDesc *> sampleDescs;

        Common::Array<EditListEntry> editList;

        uint32 frameCount;    // from stts
        uint32 duration;      // movie time
        uint32 mediaDuration; // media time
        Rational scaleFactorX;
        Rational scaleFactorY;

        Common::String volume;
        Common::String filename;
        Common::String path;
        Common::String directory;
        int16 nlvlFrom;
        int16 nlvlTo;

        PanoramaInformation panoInfo;
        Array<PanoTrackSample> panoSamples;

        GraphicsMode graphicsMode; // Transfer mode
        uint16 opcolor[3];         // RGB values used in the transfer mode specified by graphicsMode.

        uint16 soundBalance; // Controls the sound mix between the computer's two speakers, usually set to 0.
    };

    enum class MovieType {
        kStandardObject = 1,
        kOldNavigableMovieScene,
        kObjectInScene
    };

    struct Navigation {
        uint16 columns;
        uint16 rows;
        uint16 loop_size;      // Number of frames shot at each position
        uint16 frame_duration;

        MovieType movie_type;

        uint16 loop_ticks;   // Number of ticks before next frame of loop is displayed

        float field_of_view;

        float startHPan;
        float startVPan;
        float endHPan;
        float endVPan;
        float initialHPan;
        float initialVPan;
    };

    virtual SampleDesc *readSampleDesc(Track *track, uint32 format, uint32 descSize) = 0;

    uint32 _timeScale;      // movie time
    uint32 _duration;       // movie time
    Rational _scaleFactorX;
    Rational _scaleFactorY;
    Array<Track *> _tracks;
    Navigation _nav;
    QTVRType _qtvrType;
    uint16 _winX;
    uint16 _winY;

    Track *_panoTrack;

    void init();

private:
    struct Atom {
        uint32 type;
        uint32 offset;
        uint32 size;
    };

    struct ParseTable {
        int (QuickTimeParser::*func)(Atom atom);
        uint32 type;
    };

    DisposeAfterUse::Flag _disposeFileHandle;
    const ParseTable *_parseTable;
    uint32 _beginOffset;
    MacResManager *_resFork;
    bool _foundMOOV;

    void initParseTable();

    bool parsePanoramaAtoms();

    int readDefault(Atom atom);
    int readLeaf(Atom atom);
    int readDREF(Atom atom);
    int readELST(Atom atom);
    int readHDLR(Atom atom);
    int readMDHD(Atom atom);
    int readMOOV(Atom atom);
    int readMVHD(Atom atom);
    int readTKHD(Atom atom);
    int readTRAK(Atom atom);
    int readSMHD(Atom atom);
    int readSTCO(Atom atom);
    int readSTSC(Atom atom);
    int readSTSD(Atom atom);
    int readSTSS(Atom atom);
    int readSTSZ(Atom atom);
    int readSTTS(Atom atom);
    int readVMHD(Atom atom);
    int readCMOV(Atom atom);
    int readWAVE(Atom atom);
    int readESDS(Atom atom);
    int readSMI(Atom atom);
    int readCTYP(Atom atom);
    int readWLOC(Atom atom);
    int readNAVG(Atom atom);
    int readGMIN(Atom atom);
    int readPINF(Atom atom);

    int readPHDR(Atom atom);
    int readPHOT(Atom atom);
    int readSTRT(Atom atom);
    int readPLNK(Atom atom);
    int readPNAV(Atom atom);
};

} // End of namespace Common

#endif