nmcr.c File Reference

#include "nmcr.h"
#include "file_util.h"
#include "nitro_util.h"

Functions
int	Nmcr_Parse (const u8 *data, size_t size, NmcrFile *out_nmcr)
	Parses an unpacked .NMCR layout mapping resource block from raw bytes. More...
void	Nmcr_Free (NmcrFile *nmcr)
	Deallocates all resources held inside an NmcrFile structure. More...
static int	Gcd (int a, int b)
static int	Lcm (int a, int b)
int	Nmcr_MaxFrameCount (const NmcrMap *map, const NanrFile *nanr)
	Computes maximum frames required to play a composite layout. More...
int	Nmcr_CountValidRecords (const NmcrMap *map, const NanrFile *nanr, const NcerFile *ncer, int frame_index)
	Counts valid active cell records inside layout mapping for specified frame index. More...
int	Nmcr_ComputeBreakScore (const NmcrMap *idle_map, const NmcrMap *candidate_map, const NanrFile *nanr, const NcerFile *ncer)
	Measures similarity index difference scores to identify rare break animation map candidate. More...
void	Nmcr_PrintInfo (const NmcrFile *nmcr)
	Debug prints NMCR layout stats to stdout. More...

Function Documentation

Gcd()

static int Gcd ( int  a, int  b  )

static

Lcm()

static int Lcm ( int  a, int  b  )

static

Nmcr_ComputeBreakScore()

int Nmcr_ComputeBreakScore	(	const NmcrMap *	idle_map,
		const NmcrMap *	candidate_map,
		const NanrFile *	nanr,
		const NcerFile *	ncer
	)

Measures similarity index difference scores to identify rare break animation map candidate.

Parameters

idle_map	Base idle layout map.
candidate_map	Alternative layout candidate.
nanr	Pointer to parsed .NANR timeline.
ncer	Pointer to parsed .NCER cells.

Returns

Score difference value (lower score implies higher layout similarity).

Nmcr_CountValidRecords()

int Nmcr_CountValidRecords	(	const NmcrMap *	map,
		const NanrFile *	nanr,
		const NcerFile *	ncer,
		int	frame_index
	)

Counts valid active cell records inside layout mapping for specified frame index.

Parameters

map	Pointer to cell layout map.
nanr	Pointer to parsed .NANR timeline.
ncer	Pointer to parsed .NCER cells.
frame_index	Frame index request.

Returns

Number of active drawing sub-cells.

Nmcr_Free()

void Nmcr_Free

(

NmcrFile *

nmcr

)

Deallocates all resources held inside an NmcrFile structure.

Parameters

nmcr	Pointer to structure.

Nmcr_MaxFrameCount()

int Nmcr_MaxFrameCount	(	const NmcrMap *	map,
		const NanrFile *	nanr
	)

Computes maximum frames required to play a composite layout.

Parameters

map	Pointer to cell layout map.
nanr	Pointer to parsed .NANR timeline sequences.

Returns

Total frame duration count.

Nmcr_Parse()

int Nmcr_Parse	(	const u8 *	data,
		size_t	size,
		NmcrFile *	out_nmcr
	)

Parses an unpacked .NMCR layout mapping resource block from raw bytes.

Parameters

data	Raw binary input buffer.
size	Input stream size in bytes.
out_nmcr	Destination NmcrFile structure.

Returns

0 on success; negative value on formatting or invalid signature errors.

Nmcr_PrintInfo()

void Nmcr_PrintInfo

(

const NmcrFile *

nmcr

)

Debug prints NMCR layout stats to stdout.

Parameters

nmcr	Pointer to parsed NMCR.