Shift operators for 8x8px 1bpp bitmap images.

Collaboration diagram for Shift operators for 8x8px 1bpp bitmap images.:

Functions
void	im_shift_u_BM8x8 (uint8_t sft, const BM8x8 *src, BM8x8 *dst)
	MSX Shift an 8x8 pixel 1bpp image upward.
void	im_shift_u_v_BM8x8 (uint8_t sft, const BM8x8 *src)
	MSX Shift an 8x8 pixel 1bpp image upward.
void	im_shift_d_BM8x8 (uint8_t sft, const BM8x8 *src, BM8x8 *dst)
	MSX Shift an 8x8 pixel 1bpp image downward.
void	im_shift_d_v_BM8x8 (uint8_t sft, const BM8x8 *src)
	MSX Shift an 8x8 pixel 1bpp image downward.
void	im_shift_l_BM8x8 (uint8_t sft, const BM8x8 *src, BM8x8 *dst)
	MSX Shift an 8x8 pixel 1bpp image to the left.
void	im_shift_l_v_BM8x8 (uint8_t sft, const BM8x8 *src)
	MSX Shift an 8x8 pixel 1bpp image to the left.
void	im_shift_r_BM8x8 (uint8_t sft, const BM8x8 *src, BM8x8 *dst)
	MSX Shift an 8x8 pixel 1bpp image to the right.
void	im_shift_r_v_BM8x8 (uint8_t sft, const BM8x8 *src)
	MSX Shift an 8x8 pixel 1bpp image to the right.
void	im_rotate_u_BM8x8 (uint8_t sft, const BM8x8 *src, BM8x8 *dst)
	MSX Rotate (scroll) an 8x8 pixel 1bpp image upward.
void	im_rotate_u_v_BM8x8 (uint8_t sft, const BM8x8 *src)
	MSX Rotate (scroll) an 8x8 pixel 1bpp image upward.
void	im_rotate_d_BM8x8 (uint8_t sft, const BM8x8 *src, BM8x8 *dst)
	MSX Rotate (scroll) an 8x8 pixel 1bpp image downward.
void	im_rotate_d_v_BM8x8 (uint8_t sft, const BM8x8 *src)
	MSX Rotate (scroll) an 8x8 pixel 1bpp image downward.
void	im_rotate_l_BM8x8 (uint8_t sft, const BM8x8 *src, BM8x8 *dst)
	MSX Rotate (scroll) an 8x8 pixel 1bpp image to the left.
void	im_rotate_l_v_BM8x8 (uint8_t sft, const BM8x8 *src)
	MSX Rotate (scroll) an 8x8 pixel 1bpp image to the left.
void	im_rotate_r_BM8x8 (uint8_t sft, const BM8x8 *src, BM8x8 *dst)
	MSX Rotate (scroll) an 8x8 pixel 1bpp image to the right.
void	im_rotate_r_v_BM8x8 (uint8_t sft, const BM8x8 *src)
	MSX Rotate (scroll) an 8x8 pixel 1bpp image to the right.
void	im_shift_l_vec_BM8x8 (uint8_t sft, size_t n, const BM8x8 *src, BM8x8 *dst)
	MSX Shift n-columns row vector of 8x8 pixel 1bpp image to the left.
void	im_shift_r_vec_BM8x8 (uint8_t sft, size_t n, const BM8x8 *src, BM8x8 *dst)
	MSX Shift n-columns row vector of 8x8 pixel 1bpp image to the right.
void	im_rotate_l_vec_BM8x8 (uint8_t sft, size_t n, const BM8x8 *src, BM8x8 *dst)
	MSX Rotate (scroll) n-columns row vector of 8x8 pixel 1bpp image to the left.
void	im_rotate_r_vec_BM8x8 (uint8_t sft, size_t n, const BM8x8 *src, BM8x8 *dst)
	MSX Rotate (scroll) n-columns row vector of 8x8 pixel 1bpp image to the right.

Detailed Description

Shift / Rotate (Scroll) operators for 8x8px 1bpp bitmap images.

OPERATOR	ROM/RAM to RAM	ROM/RAM to VRAM
SHIFT UPWARD	im_shift_u_BM8x8()	im_shift_u_v_BM8x8()
SHIFT DOWNWARD	im_shift_d_BM8x8()	im_shift_d_v_BM8x8()
SHIFT LEFT	im_shift_l_BM8x8()	im_shift_l_v_BM8x8()
SHIFT RIGHT	im_shift_r_BM8x8()	im_shift_r_v_BM8x8()
ROTATE UPWARD	im_rotate_u_BM8x8()	im_rotate_u_v_BM8x8()
ROTATE DOWNWARD	im_rotate_d_BM8x8()	im_rotate_d_v_BM8x8()
ROTATE LEFT	im_rotate_l_BM8x8()	im_rotate_l_v_BM8x8()
ROTATE RIGHT	im_rotate_r_BM8x8()	im_rotate_r_v_BM8x8()
VECTOR SHIFT LEFT	im_shift_l_vec_BM8x8()	n/a
VECTOR SHIFT RIGHT	im_shift_r_vec_BM8x8()	n/a
VECTOR ROTATE LEFT	im_rotate_l_vec_BM8x8()	n/a
VECTOR ROTATE RIGHT	im_rotate_r_vec_BM8x8()	n/a

Function Documentation

im_shift_u_BM8x8()

void im_shift_u_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Shift an 8x8 pixel 1bpp image upward.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_shift_u_v_BM8x8()

void im_shift_u_v_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src )

MSX Shift an 8x8 pixel 1bpp image upward.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_shift_d_BM8x8()

void im_shift_d_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Shift an 8x8 pixel 1bpp image downward.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_shift_d_v_BM8x8()

void im_shift_d_v_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src )

MSX Shift an 8x8 pixel 1bpp image downward.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_shift_l_BM8x8()

void im_shift_l_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Shift an 8x8 pixel 1bpp image to the left.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_shift_l_v_BM8x8()

void im_shift_l_v_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src )

MSX Shift an 8x8 pixel 1bpp image to the left.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_shift_r_BM8x8()

void im_shift_r_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Shift an 8x8 pixel 1bpp image to the right.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_shift_r_v_BM8x8()

void im_shift_r_v_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src )

MSX Shift an 8x8 pixel 1bpp image to the right.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_rotate_u_BM8x8()

void im_rotate_u_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Rotate (scroll) an 8x8 pixel 1bpp image upward.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_rotate_u_v_BM8x8()

void im_rotate_u_v_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src )

MSX Rotate (scroll) an 8x8 pixel 1bpp image upward.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_rotate_d_BM8x8()

void im_rotate_d_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Rotate (scroll) an 8x8 pixel 1bpp image downward.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_rotate_d_v_BM8x8()

void im_rotate_d_v_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src )

MSX Rotate (scroll) an 8x8 pixel 1bpp image downward.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_rotate_l_BM8x8()

void im_rotate_l_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Rotate (scroll) an 8x8 pixel 1bpp image to the left.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_rotate_l_v_BM8x8()

void im_rotate_l_v_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src )

MSX Rotate (scroll) an 8x8 pixel 1bpp image to the left.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_rotate_r_BM8x8()

void im_rotate_r_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Rotate (scroll) an 8x8 pixel 1bpp image to the right.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_rotate_r_v_BM8x8()

void im_rotate_r_v_BM8x8	(	uint8_t	sft,
		const BM8x8 *	src )

MSX Rotate (scroll) an 8x8 pixel 1bpp image to the right.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_shift_l_vec_BM8x8()

void im_shift_l_vec_BM8x8	(	uint8_t	sft,
		size_t	n,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Shift n-columns row vector of 8x8 pixel 1bpp image to the left.

Parameters

sft	Amount of shift in pixels. (0..7)
n	Number of columns. (n > 0)
src	Pointer to n-element source images.
dst	Pointer to n-element destination images.

im_shift_r_vec_BM8x8()

void im_shift_r_vec_BM8x8	(	uint8_t	sft,
		size_t	n,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Shift n-columns row vector of 8x8 pixel 1bpp image to the right.

Parameters

sft	Amount of shift in pixels. (0..7)
n	Number of columns. (n > 0)
src	Pointer to n-element source images.
dst	Pointer to n-element destination images.

im_rotate_l_vec_BM8x8()

void im_rotate_l_vec_BM8x8	(	uint8_t	sft,
		size_t	n,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Rotate (scroll) n-columns row vector of 8x8 pixel 1bpp image to the left.

Parameters

sft	Amount of rotation in pixels. (0..7)
n	Number of columns. (n > 0)
src	Pointer to n-element source images.
dst	Pointer to n-element destination images.

im_rotate_r_vec_BM8x8()

void im_rotate_r_vec_BM8x8	(	uint8_t	sft,
		size_t	n,
		const BM8x8 *	src,
		BM8x8 *	dst )

MSX Rotate (scroll) n-columns row vector of 8x8 pixel 1bpp image to the right.

Parameters

sft	Amount of rotation in pixels. (0..7)
n	Number of columns. (n > 0)
src	Pointer to n-element source images.
dst	Pointer to n-element destination images.