mirror of
https://github.com/isledecomp/SIEdit.git
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257 lines
6.7 KiB
C++
257 lines
6.7 KiB
C++
#ifndef SI_H
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#define SI_H
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#include <fstream>
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#include "file.h"
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#include "types.h"
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namespace si {
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/**
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* @brief RIFF chunk type
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*
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* Name | Size | Type | Description
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* -------- | -------- | -------- | -----------
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* Format | 4 | u32 | 4-byte ASCII identifier for what type of RIFF this is (usually 'OMNI' in the case of LEGO Island)
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*/
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class RIFF
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{
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public:
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enum Type {
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RIFF_ = 0x46464952,
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LIST = 0x5453494c,
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MxSt = 0x7453784d,
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MxHd = 0x6448784d,
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MxCh = 0x6843784d,
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MxOf = 0x664f784d,
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MxOb = 0x624f784d,
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MxDa = 0x6144784d,
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pad_ = 0x20646170,
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OMNI = 0x494e4d4f,
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WAVE = 0x45564157,
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fmt_ = 0x20746D66,
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data = 0x61746164
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};
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struct Chk
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{
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size_t size_position;
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size_t data_start;
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};
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static Chk BeginChunk(FileBase *f, uint32_t type);
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static void EndChunk(FileBase *f, const Chk &stat);
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static inline std::string PrintU32AsString(uint32_t u)
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{
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return std::string((const char *) &u, sizeof(u));
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}
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LIBWEAVER_EXPORT static const char *GetTypeDescription(Type t);
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};
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/**
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* @brief LIST chunk type
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*
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* Name | Size | Type | Description
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* -------- | -------- | -------- | -----------
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* Format | 4 | u32 | 4-byte ASCII identifier for what type of LIST this is.
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* Count | 4 | u32 | (Optional) for 'MxCh' type LISTs, the number of elements in this list.
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*/
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class LIST : public RIFF
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{
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public:
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enum Variation {
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Act_ = 0x00746341,
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RAND = 0x444e4152
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};
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};
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/**
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* @brief MxHd chunk type
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*
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* Name | Size | Type | Description
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* ----------- | -------- | -------- | -----------
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* Version | 4 | u32 | Version of this SI file stored as two packed 16-bit words, the high word being the major version and the low word being the minor version.
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* BufferSize | 4 | u32 | The amount of data to read from disk at a time.
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* BufferCount | 4 | u32 | FIXME: Currently not understood what this field does.
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*/
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class MxHd : public RIFF
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{
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public:
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};
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/**
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* @brief MxSt chunk type
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*
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* MxSt is a container type only, it has none of its own members.
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*/
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class MxSt : public RIFF
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{
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public:
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};
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/**
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* @brief MxCh chunk type
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*
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* Name | Size | Type | Description
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* ---------- | -------- | --------- | -----------
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* Flags | 2 | u16 | Flags determining the behavior of this chunk.
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* Object | 4 | u32 | ID of the MxOb that this chunk belongs to.
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* Time | 4 | u32 | Time in milliseconds that this chunk's data should be presented at.
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* DataSize | 4 | u32 | Size of the data in this chunk.
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* Data | DataSize | bytearray | Actual data in chunk.
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*/
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class MxCh : public RIFF
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{
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public:
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enum Flag {
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FLAG_SPLIT = 0x10,
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FLAG_END = 0x2
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};
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static const uint32_t HEADER_SIZE = 14;
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};
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/**
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* @brief MxOf chunk type
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*
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* Name | Size | Type | Description
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* ---------- | -------- | ---------------- | -----------
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* Count | 4 | u32 | Number of objects in this list. Not necessarily the number of offsets, as one offset may point to an object with multiple sub-objects.
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* Offsets | Variable | bytearray/u32[] | List of 4-byte file offsets where objects begin.
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*/
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class MxOf : public RIFF
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{
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public:
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};
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/**
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* @brief pad_ chunk type
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*
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* Denotes padding to optimize disc reads. Contains no useful information,
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* customarily filled with the byte 0xCD.
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*/
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class pad_ : public RIFF
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{
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public:
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};
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/**
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* @brief MxOb chunk type
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*
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* Name | Size | Type | Description
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* ----------- | -------- | ---------------- | -----------
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* Type | 2 | u16 | Type of object (member of MxOb::Type enum)
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* Presenter | Variable | string | Null-terminated string identifying the presenter to use (if type is set to `Presenter`)
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* Unknown1 | 4 | u32 |
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* Name | Variable | string | Null-terminated string identifying object's name
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* ID | 4 | u32 | Unique object identifier within file (used to differentiate interleaved MxChs)
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* Flags | 4 | u32 | Flags of object (member of MxOb::Flags enum)
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* Unknown4 | 4 | u32 | Similar to Duration, but only used for Lego3DWavePresenter
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* Duration | 4 | u32 | Duration in milliseconds * Loops
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* Loops | 4 | u32 |
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* Position | 24 | Vector3 | Position
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* Direction | 24 | Vector3 | Direction to look towards
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* Up | 24 | Vector3 | Up vector
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* ExtraLength | 2 | u16 |
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* ExtraData | ExtraLength | bytearray |
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* FileName | Variable | string | Original filename of the file represented by this object.
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* Unknown26 | 4 | u32 |
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* Unknown27 | 4 | u32 |
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* Unknown28 | 4 | u32 |
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* FileType | 4 | u32 | 4-byte ASCII ID for the file type
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* Unknown29 | 4 | u32 |
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* Unknown30 | 4 | u32 |
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* Volume | 4 | u32 | Only populated for WAV files. Audio volume from 0 - 79.
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*/
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class MxOb : public RIFF
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{
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public:
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enum Type
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{
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/// Not an MxOb type, this is our identifier for an object that is in the TOC but doesn't
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/// actually exist
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Null = -1,
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/// Video
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Video = 0x03,
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/// Audio
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Sound = 0x04,
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/// World object for LegoWorldPresenter
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World = 0x06,
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/// Custom MxPresenter
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Presenter = 0x07,
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/// Event
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Event = 0x08,
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/// Animation
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Animation = 0x09,
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/// Bitmap image
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Bitmap = 0x0A,
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/// 3D Object
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Object = 0x0B,
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/// Total number of types (not a real type)
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TYPE_COUNT
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};
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enum Flags
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{
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/// Object loops via cache (i.e. hard disk)
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LoopCache = 0x01,
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/// Object does not loop
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NoLoop = 0x02,
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/// Object loops via stream (i.e. CD-ROM)
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LoopStream = 0x04,
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/// Object is transparent
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Transparent = 0x08,
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/// Unknown flag, but set by every object thus far
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Unknown = 0x20,
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/// Total number of flags (not a real type)
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FLAGS_COUNT,
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};
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enum FileType
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{
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/// WAVE audio
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WAV = 0x56415720,
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/// Bitmap image
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STL = 0x4C545320,
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/// FLIC animation
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FLC = 0x434c4620,
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/// SMK video
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SMK = 0x4b4d5320,
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/// 3D Object
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OBJ = 0x4a424f20,
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};
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// FIXME: sitypes.h probably won't be part of the public API, so this should
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// probably be moved
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LIBWEAVER_EXPORT static const char *GetTypeName(Type type);
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LIBWEAVER_EXPORT static std::vector<const char*> GetFlagsName(Flags flags);
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static const int MAXIMUM_VOLUME = 79;
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};
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}
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#endif // SI_H
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