UI - Low-Level GFX

Direct framebuffer drawing for advanced plugins. More...

Functions
uint16_t	host_display_width (void)
	Display width in pixels.
uint16_t	host_display_height (void)
	Display height in pixels.
int	host_display_clear (void)
	Clear the framebuffer to background.
int	host_display_draw_pixel (int16_t x, int16_t y, uint16_t color)
	Set a single pixel.
int	host_display_draw_line (int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color)
	Draw a line between two points.
int	host_display_draw_rect (int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
	Draw a rectangle outline.
int	host_display_fill_rect (int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
	Draw a filled rectangle.
int	host_display_draw_text (int16_t x, int16_t y, const char *text, uint8_t size, uint16_t color)
	Draw text using the default GFX font.
int	host_display_flush (uint8_t refresh_mode)
	Push the framebuffer to the panel using the given refresh mode.
bool	host_display_is_busy (void)
	True while the panel is processing a previous refresh.

Detailed Description

Direct framebuffer drawing for advanced plugins.

Opt-in via the manifest capability "display_lowlevel". Bypasses the view system entirely; call host_display_flush to push pixels to the panel.

Function Documentation

host_display_clear()

int host_display_clear

(

void

)

Clear the framebuffer to background.

Definition at line 49 of file host_api_display.cpp.

References HOST_ERR_GENERIC, HOST_ERR_NO_CAPABILITY, and HOST_OK.

Referenced by cdc::plugin_manager::w_host_display_clear().

host_display_draw_line()

int host_display_draw_line	(	int16_t	x0,
		int16_t	y0,
		int16_t	x1,
		int16_t	y1,
		uint16_t	color )

Draw a line between two points.

Definition at line 67 of file host_api_display.cpp.

References HOST_ERR_GENERIC, HOST_ERR_NO_CAPABILITY, and HOST_OK.

Referenced by cdc::plugin_manager::w_host_display_draw_line().

host_display_draw_pixel()

int host_display_draw_pixel	(	int16_t	x,
		int16_t	y,
		uint16_t	color )

Set a single pixel.

Definition at line 58 of file host_api_display.cpp.

References HOST_ERR_GENERIC, HOST_ERR_NO_CAPABILITY, and HOST_OK.

Referenced by cdc::plugin_manager::w_host_display_draw_pixel().

host_display_draw_rect()

int host_display_draw_rect	(	int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		uint16_t	color )

Draw a rectangle outline.

Definition at line 76 of file host_api_display.cpp.

References HOST_ERR_GENERIC, HOST_ERR_NO_CAPABILITY, and HOST_OK.

Referenced by cdc::plugin_manager::w_host_display_draw_rect().

host_display_draw_text()

int host_display_draw_text	(	int16_t	x,
		int16_t	y,
		const char *	text,
		uint8_t	size,
		uint16_t	color )

Draw text using the default GFX font.

Definition at line 94 of file host_api_display.cpp.

References HOST_ERR_GENERIC, HOST_ERR_INVALID_ARG, HOST_ERR_NO_CAPABILITY, HOST_OK, cdc::ui::render::printText(), and cdc::plugin_manager::toDisplay().

Referenced by cdc::plugin_manager::w_host_display_draw_text().

host_display_fill_rect()

int host_display_fill_rect	(	int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		uint16_t	color )

Draw a filled rectangle.

Definition at line 85 of file host_api_display.cpp.

References HOST_ERR_GENERIC, HOST_ERR_NO_CAPABILITY, and HOST_OK.

Referenced by cdc::plugin_manager::w_host_display_fill_rect().

host_display_flush()

int host_display_flush

(

uint8_t

refresh_mode

)

Push the framebuffer to the panel using the given refresh mode.

Definition at line 109 of file host_api_display.cpp.

References cdc::hal::FULL, HOST_ERR_GENERIC, HOST_ERR_NO_CAPABILITY, HOST_OK, and cdc::hal::PARTIAL.

Referenced by cdc::plugin_manager::w_host_display_flush().

host_display_height()

uint16_t host_display_height

(

void

)

Display height in pixels.

Definition at line 43 of file host_api_display.cpp.

Referenced by cdc::plugin_manager::w_host_display_height().

host_display_is_busy()

bool host_display_is_busy

(

void

)

True while the panel is processing a previous refresh.

Definition at line 118 of file host_api_display.cpp.

Referenced by cdc::plugin_manager::w_host_display_is_busy().

host_display_width()

uint16_t host_display_width

(

void

)

Display width in pixels.

Definition at line 37 of file host_api_display.cpp.

Referenced by cdc::plugin_manager::w_host_display_width().