Functions
void	Graphics_drawPixelOnDisplay (const Graphics_Display *display, uint16_t x, uint16_t y, uint16_t value)

void	Graphics_drawMultiplePixelsOnDisplay (const Graphics_Display display, uint16_t x, uint16_t y, uint16_t x0, uint16_t count, uint16_t bPP, const uint8_t data, const uint32_t *palette)

void	Graphics_drawHorizontalLineOnDisplay (const Graphics_Display *display, uint16_t x1, uint16_t x2, uint16_t y, uint32_t value)

void	Graphics_drawVerticalLineOnDisplay (const Graphics_Display *display, uint16_t x, uint16_t y1, uint16_t y2, uint16_t value)

void	Graphics_fillRectangleOnDisplay (const Graphics_Display display, const Graphics_Rectangle rect, uint16_t value)

uint32_t	Graphics_translateColorOnDisplay (const Graphics_Display *display, uint32_t value)

void	Graphics_flushOnDisplay (const Graphics_Display *display)

void	Graphics_clearDisplayOnDisplay (const Graphics_Display *display, uint16_t value)

Detailed Description

Function Documentation

void Graphics_drawPixelOnDisplay	(	const Graphics_Display *	display,
		uint16_t	x,
		uint16_t	y,
		uint16_t	value
	)

Draws a pixel on a display.

Parameters

display	is the pointer to the display driver structure for the display to operate upon.
x	is the X coordinate of the pixel.
y	is the Y coordinate of the pixel.
value	is the color to draw the pixel.

This function draws a pixel on a display. This assumes that clipping has already been performed.

Returns: None.

References Graphics_Display::callPixelDraw, and Graphics_Display::displayData.

Referenced by Graphics_drawImage(), Graphics_drawLine(), Graphics_drawPixel(), and Graphics_drawString().

void Graphics_drawMultiplePixelsOnDisplay	(	const Graphics_Display *	display,
		uint16_t	x,
		uint16_t	y,
		uint16_t	x0,
		uint16_t	count,
		uint16_t	bPP,
		const uint8_t *	data,
		const uint32_t *	palette
	)

Draws a horizontal sequence of pixels on a display.

Parameters

display	is the pointer to the display driver structure for the display to operate upon.
x	is the X coordinate of the first pixel.
y	is the Y coordinate of the first pixel.
x0	is sub-pixel offset within the pixel data, which is valid for 1 or 4 bit per pixel formats.
count	is the number of pixels to draw.
bPP	is the number of bits per pixel; must be 1, 4, or 8.
data	is a pointer to the pixel data. For 1 and 4 bit per pixel formats, the most significant bit(s) represent the left-most pixel.
palette	is a pointer to the palette used to draw the pixels.

This function draws a horizontal sequence of pixels on a display, using the supplied palette. For 1 bit per pixel format, the palette contains pre-translated colors; for 4 and 8 bit per pixel formats, the palette contains 24-bit RGB values that must be translated before being written to the display.

Returns: None.

References Graphics_Display::callPixelDrawMultiple, and Graphics_Display::displayData.

Referenced by Graphics_drawImage().

void Graphics_drawHorizontalLineOnDisplay	(	const Graphics_Display *	display,
		uint16_t	x1,
		uint16_t	x2,
		uint16_t	y,
		uint32_t	value
	)

Draws a horizontal line on a display.

Parameters

display	is the pointer to the display driver structure for the display to operate upon.
x1	is the starting X coordinate of the line.
x2	is the ending X coordinate of the line.
y	is the Y coordinate of the line.
value	is the color to draw the line.

This function draws a horizontal line on a display. This assumes that clipping has already been performed, and that both end points of the line are within the extents of the display.

Returns: None.

References Graphics_Display::callLineDrawH, and Graphics_Display::displayData.

Referenced by Graphics_drawLineH().

void Graphics_drawVerticalLineOnDisplay	(	const Graphics_Display *	display,
		uint16_t	x,
		uint16_t	y1,
		uint16_t	y2,
		uint16_t	value
	)

Draws a vertical line on a display.

Parameters

display	is the pointer to the display driver structure for the display to operate upon.
x	is the X coordinate of the line.
y1	is the starting Y coordinate of the line.
y2	is the ending Y coordinate of the line.
value	is the color to draw the line.

This function draws a vertical line on a display. This assumes that clipping has already been performed, and that both end points of the line are within the extents of the display.

Returns: None.

References Graphics_Display::callLineDrawV, and Graphics_Display::displayData.

Referenced by Graphics_drawLineV().

void Graphics_fillRectangleOnDisplay	(	const Graphics_Display *	display,
		const Graphics_Rectangle *	rect,
		uint16_t	value
	)

Fills a rectangle on a display.

Parameters

display	is the pointer to the display driver structure for the display to operate upon.
rect	is a pointer to the structure describing the rectangle to fill.
value	is the color to fill the rectangle.

This function fills a rectangle on the display. This assumes that clipping has already been performed, and that all sides of the rectangle are within the extents of the display.

Returns: None.

References Graphics_Display::callRectFill, and Graphics_Display::displayData.

Referenced by Graphics_fillRectangle().

uint32_t Graphics_translateColorOnDisplay	(	const Graphics_Display *	display,
		uint32_t	value
	)

Translates a 24-bit RGB color to a display driver-specific color.

Parameters

display	is the pointer to the display driver structure for the display to operate upon.
value	is the 24-bit RGB color. The least-significant byte is the blue channel, the next byte is the green channel, and the third byte is the red channel.

This function translates a 24-bit RGB color into a value that can be written into the display's frame buffer in order to reproduce that color, or the closest possible approximation of that color.