#include "libavutil/avassert.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "bytestream.h"
#include "copy_block.h"
#include "codec_internal.h"
#include "decode.h"

Data Structures
struct	SANMVideoContext

Macros
#define	NGLYPHS 256

#define	GLYPH_COORD_VECT_SIZE 16

#define	PALETTE_SIZE 256

#define	PALETTE_DELTA 768

Enumerations
enum	GlyphEdge { LEFT_EDGE, TOP_EDGE, RIGHT_EDGE, BOTTOM_EDGE, NO_EDGE }

enum	GlyphDir { DIR_LEFT, DIR_UP, DIR_RIGHT, DIR_DOWN, NO_DIR }

Functions
static enum GlyphEdge	which_edge (int x, int y, int edge_size)
	Return enum GlyphEdge of box where point (x, y) lies. More...

static enum GlyphDir	which_direction (enum GlyphEdge edge0, enum GlyphEdge edge1)

static void	interp_point (int8_t *points, int x0, int y0, int x1, int y1, int pos, int npoints)

static void	make_glyphs (int8_t pglyphs, const int8_t xvec, const int8_t *yvec, const int side_length)
	Construct glyphs by iterating through vector coordinates. More...

static void	init_sizes (SANMVideoContext *ctx, int width, int height)

static void	destroy_buffers (SANMVideoContext *ctx)

static av_cold int	init_buffers (SANMVideoContext *ctx)

static void	codec33_gen_tiles (SANMVideoContext *ctx, int8_t param1)

static void	codec4_gen_tiles (SANMVideoContext *ctx, uint16_t param1)

static int	codec4_load_tiles (SANMVideoContext ctx, GetByteContext gb, uint16_t param2, uint8_t clr)

static void	rotate_bufs (SANMVideoContext *ctx, int rotate_code)

static av_cold int	decode_init (AVCodecContext *avctx)

static av_cold int	decode_end (AVCodecContext *avctx)

static int	old_codec4 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int w, int h, uint8_t param, uint16_t param2, int codec)

static int	rle_decode (SANMVideoContext ctx, GetByteContext gb, uint8_t *dst, const int out_size)

static int	old_codec23 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int width, int height, uint8_t param, uint16_t param2)

static int	old_codec21 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int width, int height)

static int	old_codec1 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int width, int height, int opaque)

static int	old_codec31 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int width, int height, int p1, int opaque)

static int	old_codec2 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int width, int height)

static void	blt_solid (uint8_t dst, const uint8_t src, int16_t left, int16_t top, uint16_t srcxoff, uint16_t srcyoff, uint16_t srcwidth, uint16_t srcheight, const uint16_t srcpitch, const uint16_t dstpitch, const uint16_t dstheight, int32_t size)

static void	blt_mask (uint8_t dst, const uint8_t src, int16_t left, int16_t top, uint16_t srcxoff, uint16_t srcyoff, uint16_t srcwidth, uint16_t srcheight, const uint16_t srcpitch, const uint16_t dstpitch, const uint16_t dstheight, int32_t size, const uint8_t skipcolor)

static void	blt_ipol (uint8_t dst, const uint8_t src1, const uint8_t src2, int16_t left, int16_t top, uint16_t srcxoff, uint16_t srcyoff, uint16_t srcwidth, uint16_t srcheight, const uint16_t srcpitch, const uint16_t dstpitch, const uint16_t dstheight, int32_t size, const uint8_t itbl)

static int	old_codec20 (SANMVideoContext ctx, GetByteContext gb, int top, int left, const int w, const int h)

static void	codec37_mv (uint8_t dst, const uint8_t src, int height, int stride, int x, int y)

static int	old_codec37 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int width, int height)

static int	codec47_block (SANMVideoContext ctx, GetByteContext gb, uint8_t dst, uint8_t prev1, uint8_t *prev2, int stride, int size)

static void	codec47_read_interptable (GetByteContext gb, uint8_t itbl)

static void	codec47_comp1 (GetByteContext gb, uint8_t dst_in, int width, const int height, const ptrdiff_t stride, const uint8_t *itbl)

static int	old_codec47 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int width, int height)

static void	c48_4to8 (uint8_t dst, const uint8_t src, const uint16_t w)

static int	c48_invalid_mv (int x, int y, const uint16_t w, int h, int blocksize, int mvofs)

static int	codec48_block (GetByteContext gb, uint8_t dst, uint8_t db, int x, int y, const uint16_t w, const int aligned_height, const uint8_t itbl)

static int	old_codec48 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int width, int height)

static void	old_codec45 (SANMVideoContext ctx, GetByteContext gb, int top, int left, int flag)

static int	process_frame_obj (SANMVideoContext ctx, GetByteContext gb, int xoff, int yoff)

static int	process_ftch (SANMVideoContext *ctx, int size)

static int	process_xpal (SANMVideoContext *ctx, int size)

static int	bl16_decode_0 (SANMVideoContext *ctx)

static uint16_t	bl16_c1_avg_col (uint16_t c1, uint16_t c2)

static int	bl16_decode_1 (SANMVideoContext *ctx)

static void	copy_block (uint16_t pdest, uint16_t psrc, int block_size, ptrdiff_t pitch)

static void	fill_block (uint16_t *pdest, uint16_t color, int block_size, ptrdiff_t pitch)

static int	draw_glyph (SANMVideoContext ctx, uint16_t dst, int index, uint16_t fg_color, uint16_t bg_color, int block_size, ptrdiff_t pitch)

static int	opcode_0xf7 (SANMVideoContext *ctx, int cx, int cy, int block_size, ptrdiff_t pitch)

static int	opcode_0xf8 (SANMVideoContext *ctx, int cx, int cy, int block_size, ptrdiff_t pitch)

static int	good_mvec (SANMVideoContext *ctx, int cx, int cy, int mx, int my, int block_size)

static int	bl16_block (SANMVideoContext *ctx, int cx, int cy, int blk_size)

static int	bl16_decode_2 (SANMVideoContext *ctx)

static int	bl16_decode_5 (SANMVideoContext *ctx, int rle_size)

static int	bl16_decode_6 (SANMVideoContext *ctx)

static int	bl16_decode_7 (SANMVideoContext *ctx)

static int	bl16_decode_8 (SANMVideoContext *ctx)

static void	fill_frame (uint16_t *pbuf, int buf_size, uint16_t color)

static int	copy_output (SANMVideoContext *ctx, int sanm)

static int	decode_bl16 (AVCodecContext avctx, int got_frame_ptr)

static int	decode_anim (AVCodecContext avctx, int got_frame_ptr)

static int	decode_frame (AVCodecContext avctx, AVFrame frame, int got_frame_ptr, AVPacket pkt)

Variables
static const int8_t	glyph4_x [GLYPH_COORD_VECT_SIZE]

static const int8_t	glyph4_y [GLYPH_COORD_VECT_SIZE]

static const int8_t	glyph8_x [GLYPH_COORD_VECT_SIZE]

static const int8_t	glyph8_y [GLYPH_COORD_VECT_SIZE]

static const int8_t	c47_mv [256][2]

static const int8_t	c37_mv []

const FFCodec	ff_sanm_decoder

Macro Definition Documentation

◆ NGLYPHS

#define NGLYPHS 256

Definition at line 32 of file sanm.c.

◆ GLYPH_COORD_VECT_SIZE

#define GLYPH_COORD_VECT_SIZE 16

Definition at line 33 of file sanm.c.

◆ PALETTE_SIZE

#define PALETTE_SIZE 256

Definition at line 34 of file sanm.c.

◆ PALETTE_DELTA

#define PALETTE_DELTA 768

Definition at line 35 of file sanm.c.

Enumeration Type Documentation

◆ GlyphEdge

enum GlyphEdge

Enumerator
LEFT_EDGE
TOP_EDGE
RIGHT_EDGE
BOTTOM_EDGE
NO_EDGE

Definition at line 304 of file sanm.c.

◆ GlyphDir

enum GlyphDir

Enumerator
DIR_LEFT
DIR_UP
DIR_RIGHT
DIR_DOWN
NO_DIR

Definition at line 312 of file sanm.c.

Function Documentation

◆ which_edge()

static enum GlyphEdge which_edge	(	int	x,
		int	y,
		int	edge_size
	)

static

Return enum GlyphEdge of box where point (x, y) lies.

Parameters

x	x point coordinate
y	y point coordinate
edge_size	box width/height.

Definition at line 327 of file sanm.c.

Referenced by make_glyphs().

◆ which_direction()

static enum GlyphDir which_direction	(	enum GlyphEdge	edge0,
		enum GlyphEdge	edge1
	)

static

Definition at line 343 of file sanm.c.

Referenced by make_glyphs().

◆ interp_point()

static void interp_point	(	int8_t *	points,
		int	x0,
		int	y0,
		int	x1,
		int	y1,
		int	pos,
		int	npoints
	)

static

Definition at line 366 of file sanm.c.

Referenced by make_glyphs().

◆ make_glyphs()

static void make_glyphs	(	int8_t *	pglyphs,
		const int8_t *	xvec,
		const int8_t *	yvec,
		const int	side_length
	)

static

Construct glyphs by iterating through vector coordinates.

Parameters

pglyphs	pointer to table where glyphs are stored
xvec	pointer to x component of vector coordinates
yvec	pointer to y component of vector coordinates
side_length	glyph width/height.

Definition at line 386 of file sanm.c.

Referenced by decode_init().

◆ init_sizes()

static void init_sizes	(	SANMVideoContext *	ctx,
		int	width,
		int	height
	)

static

Definition at line 438 of file sanm.c.

Referenced by decode_init(), destroy_buffers(), and process_frame_obj().

◆ destroy_buffers()

static void destroy_buffers ( SANMVideoContext * ctx )

static

Definition at line 451 of file sanm.c.

Referenced by decode_end(), and init_buffers().

◆ init_buffers()

static av_cold int init_buffers ( SANMVideoContext * ctx )

static

Definition at line 465 of file sanm.c.

Referenced by decode_init(), and process_frame_obj().

◆ codec33_gen_tiles()

static void codec33_gen_tiles	(	SANMVideoContext *	ctx,
		int8_t	param1
	)

static

Definition at line 486 of file sanm.c.

Referenced by old_codec4().

◆ codec4_gen_tiles()

static void codec4_gen_tiles	(	SANMVideoContext *	ctx,
		uint16_t	param1
	)

static

Definition at line 550 of file sanm.c.

Referenced by old_codec4().

◆ codec4_load_tiles()

static int codec4_load_tiles	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		uint16_t	param2,
		uint8_t	clr
	)

static

Definition at line 599 of file sanm.c.

Referenced by old_codec4().

◆ rotate_bufs()

static void rotate_bufs	(	SANMVideoContext *	ctx,
		int	rotate_code
	)

static

Definition at line 617 of file sanm.c.

Referenced by decode_bl16(), and old_codec47().

◆ decode_init()

static av_cold int decode_init ( AVCodecContext * avctx )

static

Definition at line 624 of file sanm.c.

◆ decode_end()

static av_cold int decode_end ( AVCodecContext * avctx )

static

Definition at line 670 of file sanm.c.

◆ old_codec4()

static int old_codec4	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	w,
		int	h,
		uint8_t	param,
		uint16_t	param2,
		int	codec
	)

static

Definition at line 679 of file sanm.c.

Referenced by process_frame_obj().

◆ rle_decode()

static int rle_decode	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		uint8_t *	dst,
		const int	out_size
	)

static

Definition at line 746 of file sanm.c.

Referenced by bl16_decode_5(), bl16_decode_8(), old_codec37(), old_codec47(), and old_codec48().

◆ old_codec23()

static int old_codec23	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	width,
		int	height,
		uint8_t	param,
		uint16_t	param2
	)

static

Definition at line 772 of file sanm.c.

Referenced by process_frame_obj().

◆ old_codec21()

static int old_codec21	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	width,
		int	height
	)

static

Definition at line 838 of file sanm.c.

Referenced by process_frame_obj().

◆ old_codec1()

static int old_codec1	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	width,
		int	height,
		int	opaque
	)

static

Definition at line 883 of file sanm.c.

Referenced by process_frame_obj().

◆ old_codec31()

static int old_codec31	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	width,
		int	height,
		int	p1,
		int	opaque
	)

static

Definition at line 950 of file sanm.c.

Referenced by process_frame_obj().

◆ old_codec2()

static int old_codec2	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	width,
		int	height
	)

static

Definition at line 1016 of file sanm.c.

Referenced by process_frame_obj().

◆ blt_solid()

static void blt_solid	(	uint8_t *	dst,
		const uint8_t *	src,
		int16_t	left,
		int16_t	top,
		uint16_t	srcxoff,
		uint16_t	srcyoff,
		uint16_t	srcwidth,
		uint16_t	srcheight,
		const uint16_t	srcpitch,
		const uint16_t	dstpitch,
		const uint16_t	dstheight,
		int32_t	size
	)

static

Definition at line 1034 of file sanm.c.

Referenced by old_codec20(), old_codec37(), old_codec47(), and old_codec48().

◆ blt_mask()

static void blt_mask	(	uint8_t *	dst,
		const uint8_t *	src,
		int16_t	left,
		int16_t	top,
		uint16_t	srcxoff,
		uint16_t	srcyoff,
		uint16_t	srcwidth,
		uint16_t	srcheight,
		const uint16_t	srcpitch,
		const uint16_t	dstpitch,
		const uint16_t	dstheight,
		int32_t	size,
		const uint8_t	skipcolor
	)

static

Definition at line 1086 of file sanm.c.

Referenced by old_codec37(), and old_codec48().

◆ blt_ipol()

static void blt_ipol	(	uint8_t *	dst,
		const uint8_t *	src1,
		const uint8_t *	src2,
		int16_t	left,
		int16_t	top,
		uint16_t	srcxoff,
		uint16_t	srcyoff,
		uint16_t	srcwidth,
		uint16_t	srcheight,
		const uint16_t	srcpitch,
		const uint16_t	dstpitch,
		const uint16_t	dstheight,
		int32_t	size,
		const uint8_t *	itbl
	)

static

Definition at line 1138 of file sanm.c.

Referenced by old_codec48().

◆ old_codec20()

static int old_codec20	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		const int	w,
		const int	h
	)

static

Definition at line 1192 of file sanm.c.

Referenced by process_frame_obj().

◆ codec37_mv()

static void codec37_mv	(	uint8_t *	dst,
		const uint8_t *	src,
		int	height,
		int	stride,
		int	x,
		int	y
	)

inlinestatic

Definition at line 1201 of file sanm.c.

Referenced by old_codec37().

◆ old_codec37()

static int old_codec37	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	width,
		int	height
	)

static

Definition at line 1220 of file sanm.c.

Referenced by process_frame_obj().

◆ codec47_block()

static int codec47_block	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		uint8_t *	dst,
		uint8_t *	prev1,
		uint8_t *	prev2,
		int	stride,
		int	size
	)

static

Definition at line 1405 of file sanm.c.

Referenced by old_codec47().

◆ codec47_read_interptable()

static void codec47_read_interptable	(	GetByteContext *	gb,
		uint8_t *	itbl
	)

static

Definition at line 1491 of file sanm.c.

Referenced by old_codec47(), and old_codec48().

◆ codec47_comp1()

static void codec47_comp1	(	GetByteContext *	gb,
		uint8_t *	dst_in,
		int	width,
		const int	height,
		const ptrdiff_t	stride,
		const uint8_t *	itbl
	)

static

Definition at line 1507 of file sanm.c.

Referenced by old_codec47(), and old_codec48().

◆ old_codec47()

static int old_codec47	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	width,
		int	height
	)

static

Definition at line 1540 of file sanm.c.

Referenced by process_frame_obj().

◆ c48_4to8()

static void c48_4to8	(	uint8_t *	dst,
		const uint8_t *	src,
		const uint16_t	w
	)

static

Definition at line 1636 of file sanm.c.

Referenced by codec48_block().

◆ c48_invalid_mv()

static int c48_invalid_mv	(	int	x,
		int	y,
		const uint16_t	w,
		int	h,
		int	blocksize,
		int	mvofs
	)

static

Definition at line 1651 of file sanm.c.

Referenced by codec48_block().

◆ codec48_block()

static int codec48_block	(	GetByteContext *	gb,
		uint8_t *	dst,
		uint8_t *	db,
		int	x,
		int	y,
		const uint16_t	w,
		const int	aligned_height,
		const uint8_t *	itbl
	)

static

Definition at line 1661 of file sanm.c.

Referenced by old_codec48().

◆ old_codec48()

static int old_codec48	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	width,
		int	height
	)

static

Definition at line 1840 of file sanm.c.

Referenced by process_frame_obj().

◆ old_codec45()

static void old_codec45	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	top,
		int	left,
		int	flag
	)

static

Definition at line 1951 of file sanm.c.

Referenced by process_frame_obj().

◆ process_frame_obj()

static int process_frame_obj	(	SANMVideoContext *	ctx,
		GetByteContext *	gb,
		int	xoff,
		int	yoff
	)

static

Definition at line 2011 of file sanm.c.

Referenced by decode_anim(), and process_ftch().

◆ process_ftch()

static int process_ftch	(	SANMVideoContext *	ctx,
		int	size
	)

static

Definition at line 2157 of file sanm.c.

Referenced by decode_anim().

◆ process_xpal()

static int process_xpal	(	SANMVideoContext *	ctx,
		int	size
	)

static

Definition at line 2197 of file sanm.c.

Referenced by decode_anim().

◆ bl16_decode_0()

static int bl16_decode_0 ( SANMVideoContext * ctx )

static

Definition at line 2244 of file sanm.c.

Referenced by decode_bl16().

◆ bl16_c1_avg_col()

static uint16_t bl16_c1_avg_col	(	uint16_t	c1,
		uint16_t	c2
	)

inlinestatic

Definition at line 2262 of file sanm.c.

Referenced by bl16_decode_1(), and bl16_decode_7().

◆ bl16_decode_1()

static int bl16_decode_1 ( SANMVideoContext * ctx )

static

Definition at line 2273 of file sanm.c.

Referenced by decode_bl16().

◆ copy_block()

static void copy_block	(	uint16_t *	pdest,
		uint16_t *	psrc,
		int	block_size,
		ptrdiff_t	pitch
	)

static

Definition at line 2317 of file sanm.c.

Referenced by bl16_block().

◆ fill_block()

static void fill_block	(	uint16_t *	pdest,
		uint16_t	color,
		int	block_size,
		ptrdiff_t	pitch
	)

static

Definition at line 2336 of file sanm.c.

Referenced by bl16_block().

◆ draw_glyph()

static int draw_glyph	(	SANMVideoContext *	ctx,
		uint16_t *	dst,
		int	index,
		uint16_t	fg_color,
		uint16_t	bg_color,
		int	block_size,
		ptrdiff_t	pitch
	)

static

Definition at line 2346 of file sanm.c.

Referenced by opcode_0xf7(), and opcode_0xf8().

◆ opcode_0xf7()

static int opcode_0xf7	(	SANMVideoContext *	ctx,
		int	cx,
		int	cy,
		int	block_size,
		ptrdiff_t	pitch
	)

static

Definition at line 2368 of file sanm.c.

Referenced by bl16_block().

◆ opcode_0xf8()

static int opcode_0xf8	(	SANMVideoContext *	ctx,
		int	cx,
		int	cy,
		int	block_size,
		ptrdiff_t	pitch
	)

static

Definition at line 2402 of file sanm.c.

Referenced by bl16_block().

◆ good_mvec()

static int good_mvec	(	SANMVideoContext *	ctx,
		int	cx,
		int	cy,
		int	mx,
		int	my,
		int	block_size
	)

static

Definition at line 2430 of file sanm.c.

Referenced by bl16_block().

◆ bl16_block()

static int bl16_block	(	SANMVideoContext *	ctx,
		int	cx,
		int	cy,
		int	blk_size
	)

static

Definition at line 2446 of file sanm.c.

Referenced by bl16_decode_2().

◆ bl16_decode_2()

static int bl16_decode_2 ( SANMVideoContext * ctx )

static

Definition at line 2545 of file sanm.c.

Referenced by decode_bl16().

◆ bl16_decode_5()

static int bl16_decode_5	(	SANMVideoContext *	ctx,
		int	rle_size
	)

static

Definition at line 2557 of file sanm.c.

Referenced by decode_bl16().

◆ bl16_decode_6()

static int bl16_decode_6 ( SANMVideoContext * ctx )

static

Definition at line 2580 of file sanm.c.

Referenced by decode_bl16().

◆ bl16_decode_7()

static int bl16_decode_7 ( SANMVideoContext * ctx )

static

Definition at line 2600 of file sanm.c.

Referenced by decode_bl16().

◆ bl16_decode_8()

static int bl16_decode_8 ( SANMVideoContext * ctx )

static

Definition at line 2644 of file sanm.c.

Referenced by decode_bl16().

◆ fill_frame()

static void fill_frame	(	uint16_t *	pbuf,
		int	buf_size,
		uint16_t	color
	)

static

Definition at line 2666 of file sanm.c.

Referenced by decode_bl16().

◆ copy_output()

static int copy_output	(	SANMVideoContext *	ctx,
		int	sanm
	)

static

Definition at line 2674 of file sanm.c.

Referenced by decode_anim(), and decode_bl16().

◆ decode_bl16()

static int decode_bl16	(	AVCodecContext *	avctx,
		int *	got_frame_ptr
	)

static

Definition at line 2696 of file sanm.c.

Referenced by decode_frame().

◆ decode_anim()

static int decode_anim	(	AVCodecContext *	avctx,
		int *	got_frame_ptr
	)

static

Definition at line 2782 of file sanm.c.

Referenced by decode_frame().

◆ decode_frame()

static int decode_frame	(	AVCodecContext *	avctx,
		AVFrame *	frame,
		int *	got_frame_ptr,
		AVPacket *	pkt
	)

static

Definition at line 2892 of file sanm.c.

Variable Documentation

◆ glyph4_x

const int8_t glyph4_x[GLYPH_COORD_VECT_SIZE]

static

Initial value:

= {
    0, 1, 2, 3, 3, 3, 3, 2, 1, 0, 0, 0, 1, 2, 2, 1
}

Definition at line 37 of file sanm.c.

Referenced by decode_init().

◆ glyph4_y

const int8_t glyph4_y[GLYPH_COORD_VECT_SIZE]

static

Initial value:

= {
    0, 0, 0, 0, 1, 2, 3, 3, 3, 3, 2, 1, 1, 1, 2, 2
}

Definition at line 41 of file sanm.c.

Referenced by decode_init().

◆ glyph8_x

const int8_t glyph8_x[GLYPH_COORD_VECT_SIZE]

static

Initial value:

= {
    0, 2, 5, 7, 7, 7, 7, 7, 7, 5, 2, 0, 0, 0, 0, 0
}

Definition at line 45 of file sanm.c.

Referenced by decode_init().

◆ glyph8_y

const int8_t glyph8_y[GLYPH_COORD_VECT_SIZE]

static

Initial value:

= {
    0, 0, 0, 0, 1, 3, 4, 6, 7, 7, 7, 7, 6, 4, 3, 1
}

Definition at line 49 of file sanm.c.

Referenced by decode_init().

◆ c47_mv

const int8_t c47_mv[256][2]

static

Definition at line 54 of file sanm.c.

Referenced by bl16_block(), and codec47_block().

◆ c37_mv

const int8_t c37_mv[]

static

Definition at line 109 of file sanm.c.

Referenced by codec48_block(), and old_codec37().

◆ ff_sanm_decoder

const FFCodec ff_sanm_decoder

Initial value:

= {
    .p.name         = "sanm",
    CODEC_LONG_NAME("LucasArts SANM/Smush video"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_SANM,
    .priv_data_size = sizeof(SANMVideoContext),
    .init           = decode_init,
    .close          = decode_end,
    FF_CODEC_DECODE_CB(decode_frame),
    .p.capabilities = AV_CODEC_CAP_DR1,
}

Definition at line 2911 of file sanm.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ NGLYPHS

◆ GLYPH_COORD_VECT_SIZE

◆ PALETTE_SIZE

◆ PALETTE_DELTA

Enumeration Type Documentation

◆ GlyphEdge

◆ GlyphDir

Function Documentation

◆ which_edge()

◆ which_direction()

◆ interp_point()

◆ make_glyphs()

◆ init_sizes()

◆ destroy_buffers()

◆ init_buffers()

◆ codec33_gen_tiles()

◆ codec4_gen_tiles()

◆ codec4_load_tiles()

◆ rotate_bufs()

◆ decode_init()

◆ decode_end()

◆ old_codec4()

◆ rle_decode()

◆ old_codec23()

◆ old_codec21()

◆ old_codec1()

◆ old_codec31()

◆ old_codec2()

◆ blt_solid()

◆ blt_mask()

◆ blt_ipol()

◆ old_codec20()

◆ codec37_mv()

◆ old_codec37()

◆ codec47_block()

◆ codec47_read_interptable()

◆ codec47_comp1()

◆ old_codec47()

◆ c48_4to8()

◆ c48_invalid_mv()

◆ codec48_block()

◆ old_codec48()

◆ old_codec45()

◆ process_frame_obj()

◆ process_ftch()

◆ process_xpal()

◆ bl16_decode_0()

◆ bl16_c1_avg_col()

◆ bl16_decode_1()

◆ copy_block()

◆ fill_block()

◆ draw_glyph()

◆ opcode_0xf7()

◆ opcode_0xf8()

◆ good_mvec()

◆ bl16_block()

◆ bl16_decode_2()

◆ bl16_decode_5()

◆ bl16_decode_6()

◆ bl16_decode_7()

◆ bl16_decode_8()

◆ fill_frame()

◆ copy_output()

◆ decode_bl16()

◆ decode_anim()

◆ decode_frame()

Variable Documentation

◆ glyph4_x

◆ glyph4_y

◆ glyph8_x

◆ glyph8_y

◆ c47_mv

◆ c37_mv

◆ ff_sanm_decoder