snes_ntsc.h File Reference

#include "snes_ntsc_config.h"

Include dependency graph for snes_ntsc.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	snes_ntsc_setup_t
struct	snes_ntsc_t

Macros
#define	SNES_NTSC_OUT_WIDTH(in_width)   ((((in_width) - 1) / snes_ntsc_in_chunk + 1) * snes_ntsc_out_chunk)
#define	SNES_NTSC_IN_WIDTH(out_width)   (((out_width) / snes_ntsc_out_chunk - 1) * snes_ntsc_in_chunk + 1)
#define	SNES_NTSC_BEGIN_ROW(ntsc, burst, pixel0, pixel1, pixel2)
#define	SNES_NTSC_COLOR_IN(index, color)   SNES_NTSC_COLOR_IN_( index, color, SNES_NTSC_IN_FORMAT, ktable )
#define	SNES_NTSC_RGB_OUT(index, rgb_out, bits)   SNES_NTSC_RGB_OUT_14_( index, rgb_out, bits, 1 )
#define	SNES_NTSC_HIRES_ROW(ntsc, burst, pixel1, pixel2, pixel3, pixel4, pixel5)
#define	SNES_NTSC_HIRES_OUT(x, rgb_out, bits)
#define	SNES_NTSC_RGB16(ktable, n)
#define	SNES_NTSC_BGR15(ktable, n)
#define	SNES_NTSC_BEGIN_ROW_6_(pixel0, pixel1, pixel2, ENTRY, table)
#define	SNES_NTSC_RGB_OUT_14_(x, rgb_out, bits, shift)
#define	snes_ntsc_rgb_builder   ((1L << 21) | (1 << 11) | (1 << 1))
#define	snes_ntsc_clamp_mask   (snes_ntsc_rgb_builder * 3 / 2)
#define	snes_ntsc_clamp_add   (snes_ntsc_rgb_builder * 0x101)
#define	SNES_NTSC_CLAMP_(io, shift)
#define	SNES_NTSC_COLOR_IN_(index, color, ENTRY, table)
#define	SNES_NTSC_RGB_OUT_(rgb_out, bits, x)

Typedefs
typedef struct snes_ntsc_setup_t	snes_ntsc_setup_t
typedef struct snes_ntsc_t	snes_ntsc_t
typedef unsigned long	snes_ntsc_rgb_t

Enumerations
enum	{ snes_ntsc_in_chunk = 3 }
enum	{ snes_ntsc_out_chunk = 7 }
enum	{ snes_ntsc_black = 0 }
enum	{ snes_ntsc_burst_count = 3 }
enum	{ snes_ntsc_entry_size = 128 }
enum	{ snes_ntsc_palette_size = 0x2000 }
enum	{ snes_ntsc_burst_size = snes_ntsc_entry_size / snes_ntsc_burst_count }

Functions
void	snes_ntsc_init (snes_ntsc_t *ntsc, snes_ntsc_setup_t const *setup)
void	snes_ntsc_blit (snes_ntsc_t const *ntsc, SNES_NTSC_IN_T const *input, long in_row_width, int burst_phase, int in_width, int in_height, void *rgb_out, long out_pitch, int first, int last)
void	snes_ntsc_blit_hires (snes_ntsc_t const *ntsc, SNES_NTSC_IN_T const *input, long in_row_width, int burst_phase, int in_width, int in_height, void *rgb_out, long out_pitch, int first, int last)

Variables
snes_ntsc_setup_t const	snes_ntsc_composite
snes_ntsc_setup_t const	snes_ntsc_svideo
snes_ntsc_setup_t const	snes_ntsc_rgb
snes_ntsc_setup_t const	snes_ntsc_monochrome

Macro Definition Documentation

SNES_NTSC_BEGIN_ROW

#define SNES_NTSC_BEGIN_ROW	(		ntsc,
			burst,
			pixel0,
			pixel1,
			pixel2
	)

Value:

char const* ktable = \
        (char const*) (ntsc)->table + burst * (snes_ntsc_burst_size * sizeof (snes_ntsc_rgb_t));\
    SNES_NTSC_BEGIN_ROW_6_( pixel0, pixel1, pixel2, SNES_NTSC_IN_FORMAT, ktable )

SNES_NTSC_BEGIN_ROW_6_

#define SNES_NTSC_BEGIN_ROW_6_	(		pixel0,
			pixel1,
			pixel2,
			ENTRY,
			table
	)

Value:

unsigned const snes_ntsc_pixel0_ = (pixel0);\
    snes_ntsc_rgb_t const* kernel0  = ENTRY( table, snes_ntsc_pixel0_ );\
    unsigned const snes_ntsc_pixel1_ = (pixel1);\
    snes_ntsc_rgb_t const* kernel1  = ENTRY( table, snes_ntsc_pixel1_ );\
    unsigned const snes_ntsc_pixel2_ = (pixel2);\
    snes_ntsc_rgb_t const* kernel2  = ENTRY( table, snes_ntsc_pixel2_ );\
    snes_ntsc_rgb_t const* kernelx0;\
    snes_ntsc_rgb_t const* kernelx1 = kernel0;\
    snes_ntsc_rgb_t const* kernelx2 = kernel0

SNES_NTSC_BGR15

#define SNES_NTSC_BGR15	(		ktable,
			n
	)

Value:

(snes_ntsc_rgb_t const*) (ktable + ((n << 9 & 0x3C00) | (n & 0x03E0) | (n >> 10 & 0x001E)) * \
            (snes_ntsc_entry_size / 2 * sizeof (snes_ntsc_rgb_t)))

SNES_NTSC_CLAMP_

#define SNES_NTSC_CLAMP_	(		io,
			shift
	)

Value:

{\
    snes_ntsc_rgb_t sub = (io) >> (9-(shift)) & snes_ntsc_clamp_mask;\
    snes_ntsc_rgb_t clamp = snes_ntsc_clamp_add - sub;\
    io |= clamp;\
    clamp -= sub;\
    io &= clamp;\
}

snes_ntsc_clamp_add

#define snes_ntsc_clamp_add   (snes_ntsc_rgb_builder * 0x101)

snes_ntsc_clamp_mask

#define snes_ntsc_clamp_mask   (snes_ntsc_rgb_builder * 3 / 2)

SNES_NTSC_COLOR_IN

#define SNES_NTSC_COLOR_IN	(		index,
			color
	)		SNES_NTSC_COLOR_IN_( index, color, SNES_NTSC_IN_FORMAT, ktable )

SNES_NTSC_COLOR_IN_

#define SNES_NTSC_COLOR_IN_	(		index,
			color,
			ENTRY,
			table
	)

Value:

{\
    unsigned color_;\
    kernelx##index = kernel##index;\
    kernel##index = (color_ = (color), ENTRY( table, color_ ));\
}

SNES_NTSC_HIRES_OUT

#define SNES_NTSC_HIRES_OUT	(		x,
			rgb_out,
			bits
	)

Value:

{\
    snes_ntsc_rgb_t raw_ =\
        kernel0  [ x       ] + kernel2  [(x+5)%7+14] + kernel4  [(x+3)%7+28] +\
        kernelx0 [(x+7)%7+7] + kernelx2 [(x+5)%7+21] + kernelx4 [(x+3)%7+35] +\
        kernel1  [(x+6)%7  ] + kernel3  [(x+4)%7+14] + kernel5  [(x+2)%7+28] +\
        kernelx1 [(x+6)%7+7] + kernelx3 [(x+4)%7+21] + kernelx5 [(x+2)%7+35];\
    SNES_NTSC_CLAMP_( raw_, 0 );\
    SNES_NTSC_RGB_OUT_( rgb_out, (bits), 0 );\
}

SNES_NTSC_HIRES_ROW

#define SNES_NTSC_HIRES_ROW	(		ntsc,
			burst,
			pixel1,
			pixel2,
			pixel3,
			pixel4,
			pixel5
	)

Value:

char const* ktable = \
        (char const*) (ntsc)->table + burst * (snes_ntsc_burst_size * sizeof (snes_ntsc_rgb_t));\
    unsigned const snes_ntsc_pixel1_ = (pixel1);\
    snes_ntsc_rgb_t const* kernel1  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel1_ );\
    unsigned const snes_ntsc_pixel2_ = (pixel2);\
    snes_ntsc_rgb_t const* kernel2  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel2_ );\
    unsigned const snes_ntsc_pixel3_ = (pixel3);\
    snes_ntsc_rgb_t const* kernel3  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel3_ );\
    unsigned const snes_ntsc_pixel4_ = (pixel4);\
    snes_ntsc_rgb_t const* kernel4  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel4_ );\
    unsigned const snes_ntsc_pixel5_ = (pixel5);\
    snes_ntsc_rgb_t const* kernel5  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel5_ );\
    snes_ntsc_rgb_t const* kernel0 = kernel1;\
    snes_ntsc_rgb_t const* kernelx0;\
    snes_ntsc_rgb_t const* kernelx1 = kernel1;\
    snes_ntsc_rgb_t const* kernelx2 = kernel1;\
    snes_ntsc_rgb_t const* kernelx3 = kernel1;\
    snes_ntsc_rgb_t const* kernelx4 = kernel1;\
    snes_ntsc_rgb_t const* kernelx5 = kernel1

SNES_NTSC_IN_WIDTH

#define SNES_NTSC_IN_WIDTH

(

out_width

)

(((out_width) / snes_ntsc_out_chunk - 1) * snes_ntsc_in_chunk + 1)

SNES_NTSC_OUT_WIDTH

#define SNES_NTSC_OUT_WIDTH

(

in_width

)

((((in_width) - 1) / snes_ntsc_in_chunk + 1) * snes_ntsc_out_chunk)

SNES_NTSC_RGB16

#define SNES_NTSC_RGB16	(		ktable,
			n
	)

Value:

(snes_ntsc_rgb_t const*) (ktable + ((n & 0x001E) | (n >> 1 & 0x03E0) | (n >> 2 & 0x3C00)) * \
            (snes_ntsc_entry_size / 2 * sizeof (snes_ntsc_rgb_t)))

snes_ntsc_rgb_builder

#define snes_ntsc_rgb_builder   ((1L << 21) | (1 << 11) | (1 << 1))

SNES_NTSC_RGB_OUT

#define SNES_NTSC_RGB_OUT	(		index,
			rgb_out,
			bits
	)		SNES_NTSC_RGB_OUT_14_( index, rgb_out, bits, 1 )

SNES_NTSC_RGB_OUT_

#define SNES_NTSC_RGB_OUT_	(		rgb_out,
			bits,
			x
	)

Value:

{\
    if ( bits == 16 )\
        rgb_out = (raw_>>(13-x)& 0xF800)|(raw_>>(8-x)&0x07E0)|(raw_>>(4-x)&0x001F);\
    if ( bits == 24 || bits == 32 )\
        rgb_out = (raw_>>(5-x)&0xFF0000)|(raw_>>(3-x)&0xFF00)|(raw_>>(1-x)&0xFF);\
    if ( bits == 15 )\
        rgb_out = (raw_>>(14-x)& 0x7C00)|(raw_>>(9-x)&0x03E0)|(raw_>>(4-x)&0x001F);\
    if ( bits == 14 )\
        rgb_out = (raw_>>(24-x)& 0x001F)|(raw_>>(9-x)&0x03E0)|(raw_<<(6+x)&0x7C00);\
    if ( bits == 0 )\
        rgb_out = raw_ << x;\
}

SNES_NTSC_RGB_OUT_14_

#define SNES_NTSC_RGB_OUT_14_	(		x,
			rgb_out,
			bits,
			shift
	)

Value:

{\
    snes_ntsc_rgb_t raw_ =\
        kernel0  [x       ] + kernel1  [(x+12)%7+14] + kernel2  [(x+10)%7+28] +\
        kernelx0 [(x+7)%14] + kernelx1 [(x+ 5)%7+21] + kernelx2 [(x+ 3)%7+35];\
    SNES_NTSC_CLAMP_( raw_, shift );\
    SNES_NTSC_RGB_OUT_( rgb_out, bits, shift );\
}

Typedef Documentation

snes_ntsc_rgb_t

typedef unsigned long snes_ntsc_rgb_t

snes_ntsc_setup_t

typedef struct snes_ntsc_setup_t snes_ntsc_setup_t

snes_ntsc_t

typedef struct snes_ntsc_t snes_ntsc_t

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
snes_ntsc_in_chunk

anonymous enum

anonymous enum

Enumerator
snes_ntsc_out_chunk

anonymous enum

anonymous enum

Enumerator
snes_ntsc_black

anonymous enum

anonymous enum

Enumerator
snes_ntsc_burst_count

anonymous enum

anonymous enum

Enumerator
snes_ntsc_entry_size

anonymous enum

anonymous enum

Enumerator
snes_ntsc_palette_size

anonymous enum

anonymous enum

Enumerator
snes_ntsc_burst_size

Function Documentation

snes_ntsc_blit()

void snes_ntsc_blit	(	snes_ntsc_t const *	ntsc,
		SNES_NTSC_IN_T const *	input,
		long	in_row_width,
		int	burst_phase,
		int	in_width,
		int	in_height,
		void *	rgb_out,
		long	out_pitch,
		int	first,
		int	last
	)

Here is the caller graph for this function:

snes_ntsc_blit_hires()

void snes_ntsc_blit_hires	(	snes_ntsc_t const *	ntsc,
		SNES_NTSC_IN_T const *	input,
		long	in_row_width,
		int	burst_phase,
		int	in_width,
		int	in_height,
		void *	rgb_out,
		long	out_pitch,
		int	first,
		int	last
	)

Here is the caller graph for this function:

snes_ntsc_init()

void snes_ntsc_init	(	snes_ntsc_t *	ntsc,
		snes_ntsc_setup_t const *	setup
	)

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

snes_ntsc_composite

snes_ntsc_setup_t const snes_ntsc_composite

snes_ntsc_monochrome

snes_ntsc_setup_t const snes_ntsc_monochrome

snes_ntsc_rgb

snes_ntsc_setup_t const snes_ntsc_rgb

snes_ntsc_svideo

snes_ntsc_setup_t const snes_ntsc_svideo