lcd_draw.c File Reference

#include "board.h"
#include <stdint.h>
#include <string.h>
#include <assert.h>

Go to the source code of this file.

Functions
	COMPILER_ALIGNED (32)
void	LCDD_SetUpdateWindowSize (rect rc)
void	LCDD_UpdateWindow (void)
void	LCDD_UpdatePartialWindow (uint8_t *pCanvasBuffer, uint32_t size)
void	LCDD_DrawRectangleWithFill (uint16_t *pCanvasBuffer, uint32_t dwX, uint32_t dwY, uint32_t dwWidth, uint32_t dwHeight, uint32_t dwColor)
uint32_t	LCDD_DrawCircle (uint16_t *pCanvasBuffer, uint32_t x, uint32_t y, uint32_t r, uint32_t color)
	Draws a circle on LCD, at the given coordinates.
uint32_t	LCD_DrawFilledCircle (uint16_t *pCanvasBuffer, uint32_t dwX, uint32_t dwY, uint32_t dwRadius, uint32_t color)
void	LCDD_DrawString (uint16_t *pCanvasBuffer, uint32_t x, uint32_t y, const uint8_t *pString, uint32_t color)
	Draws a string inside a LCD buffer, at the given coordinates.
void	LCDD_GetStringSize (const uint8_t *pString, uint32_t *pWidth, uint32_t *pHeight)
	Returns the width & height in pixels that a string will occupy on the screen if drawn using LCDD_DrawString.
void	LCDD_BitBlt (uint16_t *pCanvasBuffer, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h, const LcdColor_t *src, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h)
void	LCDD_BitBltAlphaBlend (uint16_t *pCanvasBuffer, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h, const LcdColor_t *src, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h, uint32_t alpha)
void	LCDD_DrawImage (uint16_t *pCanvasBuffer, uint32_t dwX, uint32_t dwY, const LcdColor_t *pImage, uint32_t dwWidth, uint32_t dwHeight)
void	LCDD_DrawPixel (uint16_t *pCanvasBuffer, uint32_t x, uint32_t y, uint32_t color)
	Draw a pixel on LCD of given color.
void	LCDD_DrawLine (uint16_t *pCanvasBuffer, uint32_t dwX1, uint32_t dwY1, uint32_t dwX2, uint32_t dwY2, uint32_t color)
void	LCDD_DrawStraightLine (uint16_t *pCanvasBuffer, uint32_t dwX1, uint32_t dwY1, uint32_t dwX2, uint32_t dwY2, uint32_t color)
uint32_t	LCDD_DrawLineBresenham (uint16_t *pCanvasBuffer, uint32_t dwX1, uint32_t dwY1, uint32_t dwX2, uint32_t dwY2, uint32_t color)
void	LCDD_DrawRectangle (uint16_t *pCanvasBuffer, uint32_t x, uint32_t y, uint32_t width, uint32_t height, uint32_t color)
void	LCDD_SetCavasBuffer (void *pCanvasBuffer, uint32_t wBufferSize)

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Detailed Description

Implementation of draw function on LCD, Include draw text, image and basic shapes (line, rectangle, circle).

Definition in file lcd_draw.c.

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Function Documentation

uint32_t LCDD_DrawCircle	(	uint16_t *	pCanvasBuffer,
		uint32_t	x,
		uint32_t	y,
		uint32_t	r,
		uint32_t	color
	)

Draws a circle on LCD, at the given coordinates.

Parameters:

	pCanvasBuffer	Pointer to dedicate canvas buffer.
	x	X-coordinate of circle centre.
	y	Y-coordinate of circle centre.
	r	circle radius.
	color	circle color.

Definition at line 210 of file lcd_draw.c.

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void LCDD_DrawPixel	(	uint16_t *	pCanvasBuffer,
		uint32_t	x,
		uint32_t	y,
		uint32_t	color
	)

Draw a pixel on LCD of given color.

Parameters:

	pCanvasBuffer	Pointer to dedicate canvas buffer.
	x	X-coordinate of pixel.
	y	Y-coordinate of pixel.
	color	Pixel color.

Definition at line 537 of file lcd_draw.c.

void LCDD_DrawString	(	uint16_t *	pCanvasBuffer,
		uint32_t	x,
		uint32_t	y,
		const uint8_t *	pString,
		uint32_t	color
	)

Draws a string inside a LCD buffer, at the given coordinates.

Parameters:

	pCanvasBuffer	Pointer to dedicate canvas buffer.
	x	X-coordinate of string top-left corner.
	y	Y-coordinate of string top-left corner.
	pString	String to display.
	color	String color.

Definition at line 307 of file lcd_draw.c.

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void LCDD_GetStringSize	(	const uint8_t *	pString,
		uint32_t *	pWidth,
		uint32_t *	pHeight
	)

Returns the width & height in pixels that a string will occupy on the screen if drawn using LCDD_DrawString.

Parameters:

	pString	String.
	pWidth	Pointer for storing the string width (optional).
	pHeight	Pointer for storing the string height (optional).

Returns:

String width in pixels.

Definition at line 335 of file lcd_draw.c.