LCD Function

API for features of the LCD Maple Function More...

Macros
#define	VMU_SCREEN_WIDTH   48
	Pixel width of a standard VMU screen.
#define	VMU_SCREEN_HEIGHT   32
	Pixel height of a standard VMU screen.

Functions
int	vmu_draw_lcd (maple_device_t *dev, const void *bitmap)
	Display a 1bpp bitmap on a VMU screen.
int	vmu_draw_lcd_rotated (maple_device_t *dev, const void *bitmap)
	Display a 1bpp bitmap on a VMU screen.
int	vmu_draw_lcd_xbm (maple_device_t *dev, const char *vmu_icon)
	Display a Xwindows XBM image on a VMU screen.
void	vmu_set_icon (const char *vmu_icon)
	Display a Xwindows XBM on all VMUs.

Detailed Description

API for features of the LCD Maple Function

The LCD Maple function is for exposing a secondary LCD screen that gets attached to a controller, which can be used to display additional game information, or information you only want visible to a single player.

Macro Definition Documentation

VMU_SCREEN_HEIGHT

#define VMU_SCREEN_HEIGHT   32

Pixel height of a standard VMU screen.

Referenced by vmufb_print_string().

VMU_SCREEN_WIDTH

#define VMU_SCREEN_WIDTH   48

Pixel width of a standard VMU screen.

Referenced by vmufb_print_string().

Function Documentation

vmu_draw_lcd()

int vmu_draw_lcd	(	maple_device_t *	dev,
		const void *	bitmap )

Display a 1bpp bitmap on a VMU screen.

This function sends a raw bitmap to a VMU to display on its screen. This bitmap is 1bpp, and is 48x32 in size.

Parameters

dev	The device to draw to.
bitmap	The bitmap to show.

Return values

MAPLE_EOK	On success.
MAPLE_EAGAIN	If the command couldn't be sent. Try again later.
MAPLE_ETIMEOUT	If the command timed out while blocking.

See also

vmu_draw_lcd_rotated, vmu_draw_lcd_xbm, vmu_set_icon

vmu_draw_lcd_rotated()

int vmu_draw_lcd_rotated	(	maple_device_t *	dev,
		const void *	bitmap )

Display a 1bpp bitmap on a VMU screen.

This function sends a raw bitmap to a VMU to display on its screen. This bitmap is 1bpp, and is 48x32 in size. This function is equivalent to vmu_draw_lcd(), but the image is rotated 180° so that the first byte of the bitmap corresponds to the top-left corner, instead of the bottom-right one.

Warning

This function is optimized by an assembly routine which operates on 32 bits at a time. As such, the given bitmap must be 4-byte aligned.

Parameters

dev	The device to draw to.
bitmap	The bitmap to show.

Return values

MAPLE_EOK	On success.
MAPLE_EAGAIN	If the command couldn't be sent. Try again later.
MAPLE_ETIMEOUT	If the command timed out while blocking.

See also

vmu_draw_lcd, vmu_draw_lcd_xbm, vmu_set_icon

vmu_draw_lcd_xbm()

int vmu_draw_lcd_xbm	(	maple_device_t *	dev,
		const char *	vmu_icon )

Display a Xwindows XBM image on a VMU screen.

This function takes in a Xwindows XBM, converts it to a raw bitmap, and sends it to a VMU to display on its screen. This XBM image is 48x32 in size.

Parameters

dev	The device to draw to.
vmu_icon	The icon to set.

Return values

MAPLE_EOK	On success.
MAPLE_EAGAIN	If the command couldn't be sent. Try again later.
MAPLE_ETIMEOUT	If the command timed out while blocking.

See also

vmu_draw_lcd, vmu_set_icon

vmu_set_icon()

void vmu_set_icon

(

const char *

vmu_icon

)

Display a Xwindows XBM on all VMUs.

This function takes in a Xwindows XBM and displays the image on all VMUs.

Note

This is a convenience function for vmu_draw_lcd() to broadcast across all VMUs.

Todo

Prevent this routine from broadcasting to rear VMUs.

Parameters

vmu_icon

The icon to set.

See also

vmu_draw_lcd_xbm