/* ----------------------------------------------------------------------------
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* SAM Software Package License
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* ----------------------------------------------------------------------------
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* Copyright (c) 2011, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/**
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* \file
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*
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* Implementation of draw function on LCD, Include draw text, image
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* and basic shapes (line, rectangle, circle).
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*
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*/
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include <stdint.h>
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#include <string.h>
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#include <assert.h>
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#include "lcd_font.h"
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#include "lcd_r61509v.h"
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#include "lcd_draw.h"
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/*----------------------------------------------------------------------------
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* Exported functions
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*----------------------------------------------------------------------------*/
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/**
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* \brief Fills the given LCD buffer with a particular color.
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*
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* \param color Fill color.
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*/
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void LCDD_Fill( uint32_t dwColor )
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{
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uint32_t i ;
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LCD_SetCursor( 150, 150 ) ;
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LCD_WriteRAM_Prepare() ;
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for ( i=BOARD_LCD_WIDTH*BOARD_LCD_HEIGHT; i>0; i-- )
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{
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LCD_WriteRAM( dwColor ) ;
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}
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}
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/**
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* \brief Draw a pixel on LCD of given color.
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*
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* \param x X-coordinate of pixel.
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* \param y Y-coordinate of pixel.
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* \param color Pixel color.
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*/
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extern void LCDD_DrawPixel( uint32_t x, uint32_t y, uint32_t color )
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{
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LCD_SetCursor( x, y ) ;
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LCD_WriteRAM_Prepare() ;
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LCD_WriteRAM( color ) ;
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}
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/**
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* \brief Read a pixel from LCD.
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*
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* \param x X-coordinate of pixel.
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* \param y Y-coordinate of pixel.
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*
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* \return color Readed pixel color.
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*/
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extern uint32_t LCDD_ReadPixel( uint32_t x, uint32_t y )
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{
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uint32_t color;
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LCD_SetCursor(x, y);
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LCD_ReadRAM_Prepare();
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color = LCD_ReadRAM();
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return color;
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}
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/*
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* \brief Draw a line on LCD, horizontal and vertical line are supported.
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*
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* \param x X-coordinate of line start.
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* \param y Y-coordinate of line start.
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* \param length line length.
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* \param direction line direction: 0 - horizontal, 1 - vertical.
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* \param color Pixel color.
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*/
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extern void LCDD_DrawLine( uint32_t x, uint32_t y, uint32_t length, uint32_t direction, uint32_t color )
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{
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uint32_t i = 0 ;
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LCD_SetCursor( x, y ) ;
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if ( direction == DIRECTION_HLINE )
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{
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LCD_WriteRAM_Prepare() ;
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for ( i = 0; i < length; i++ )
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{
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LCD_WriteRAM( color ) ;
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}
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}
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else
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{
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for ( i = 0; i < length; i++ )
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{
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LCD_WriteRAM_Prepare() ;
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LCD_WriteRAM( color ) ;
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y++ ;
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LCD_SetCursor( x, y ) ;
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}
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}
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}
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/*
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* \brief Draws a rectangle on LCD, at the given coordinates.
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*
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* \param x X-coordinate of upper-left rectangle corner.
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* \param y Y-coordinate of upper-left rectangle corner.
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* \param width Rectangle width in pixels.
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* \param height Rectangle height in pixels.
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* \param color Rectangle color.
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*/
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extern void LCDD_DrawRectangle( uint32_t x, uint32_t y, uint32_t width, uint32_t height, uint32_t color )
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{
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LCDD_DrawLine(x, y, width, DIRECTION_HLINE, color);
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LCDD_DrawLine(x, (y + height), width, DIRECTION_HLINE, color);
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LCDD_DrawLine(x, y, height, DIRECTION_VLINE, color);
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LCDD_DrawLine((x + width), y, height, DIRECTION_VLINE, color);
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}
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/*
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* \brief Draws a rectangle with fill inside on LCD, at the given coordinates.
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*
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* \param x X-coordinate of upper-left rectangle corner.
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* \param y Y-coordinate of upper-left rectangle corner.
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* \param width Rectangle width in pixels.
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* \param height Rectangle height in pixels.
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* \param color Rectangle color.
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*/
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extern void LCDD_DrawRectangleWithFill( uint32_t dwX, uint32_t dwY, uint32_t dwWidth, uint32_t dwHeight, uint32_t dwColor )
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{
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uint32_t i ;
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LCD_SetWindow( dwX, dwY, dwWidth, dwHeight ) ;
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LCD_SetCursor( dwX, dwY ) ;
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LCD_WriteRAM_Prepare() ;
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for ( i = dwWidth * dwHeight; i > 0; i-- )
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{
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LCD_WriteRAM( dwColor ) ;
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}
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LCD_SetWindow( 0, 0, BOARD_LCD_WIDTH, BOARD_LCD_HEIGHT ) ;
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LCD_SetCursor( 0, 0 ) ;
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}
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/**
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* \brief Draws a circle on LCD, at the given coordinates.
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*
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* \param x X-coordinate of circle center.
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* \param y Y-coordinate of circle center.
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* \param r circle radius.
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* \param color circle color.
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*/
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extern void LCDD_DrawCircle( uint32_t x, uint32_t y, uint32_t r, uint32_t color )
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{
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signed int d; /* Decision Variable */
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uint32_t curX; /* Current X Value */
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uint32_t curY; /* Current Y Value */
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d = 3 - (r << 1);
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curX = 0;
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curY = r;
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while (curX <= curY)
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{
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LCDD_DrawPixel(x + curX, y + curY, color);
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LCDD_DrawPixel(x + curX, y - curY, color);
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LCDD_DrawPixel(x - curX, y + curY, color);
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LCDD_DrawPixel(x - curX, y - curY, color);
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LCDD_DrawPixel(x + curY, y + curX, color);
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LCDD_DrawPixel(x + curY, y - curX, color);
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LCDD_DrawPixel(x - curY, y + curX, color);
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LCDD_DrawPixel(x - curY, y - curX, color);
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if (d < 0) {
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d += (curX << 2) + 6;
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}
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else {
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d += ((curX - curY) << 2) + 10;
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curY--;
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}
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curX++;
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}
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}
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/**
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* \brief Draws a string inside a LCD buffer, at the given coordinates. Line breaks
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* will be honored.
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*
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* \param x X-coordinate of string top-left corner.
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* \param y Y-coordinate of string top-left corner.
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* \param pString String to display.
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* \param color String color.
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*/
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extern void LCDD_DrawString( uint32_t x, uint32_t y, const uint8_t *pString, uint32_t color )
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{
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uint32_t xorg = x ;
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while ( *pString != 0 && *pString > 0x1F && *pString < 0x7F)
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{
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LCDD_DrawChar( x, y, *pString, color ) ;
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if ( *pString == '\n' || x > 220)
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{
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y += gFont.height + 2 ;
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x = xorg ;
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}
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else
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{
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x += gFont.width + 2 ;
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}
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pString++ ;
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}
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}
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/**
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* \brief Draws a string inside a LCD buffer, at the given coordinates
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* with given background color. Line breaks will be honored.
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*
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* \param x X-coordinate of string top-left corner.
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* \param y Y-coordinate of string top-left corner.
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* \param pString String to display.
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* \param fontColor String color.
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* \param bgColor Background color.
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*/
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extern void LCDD_DrawStringWithBGColor( uint32_t x, uint32_t y, const char *pString, uint32_t fontColor, uint32_t bgColor )
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{
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unsigned xorg = x;
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while ( *pString != 0 )
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{
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if ( *pString == '\n' )
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{
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y += gFont.height + 2 ;
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x = xorg ;
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}
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else
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{
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LCDD_DrawCharWithBGColor( x, y, *pString, fontColor, bgColor ) ;
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x += gFont.width + 2;
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}
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pString++;
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}
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}
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/**
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* \brief Returns the width & height in pixels that a string will occupy on the screen
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* if drawn using LCDD_DrawString.
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*
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* \param pString String.
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* \param pWidth Pointer for storing the string width (optional).
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* \param pHeight Pointer for storing the string height (optional).
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*
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* \return String width in pixels.
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*/
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extern void LCDD_GetStringSize( const uint8_t *pString, uint32_t *pWidth, uint32_t *pHeight )
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{
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uint32_t width = 0;
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uint32_t height = gFont.height;
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while ( *pString != 0 )
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{
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if ( *pString == '\n' )
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{
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height += gFont.height + 2 ;
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}
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else
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{
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width += gFont.width + 2 ;
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}
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pString++ ;
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}
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if ( width > 0 )
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{
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width -= 2;
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}
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if ( pWidth != NULL )
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{
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*pWidth = width;
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}
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if ( pHeight != NULL )
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{
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*pHeight = height ;
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}
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}
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/*
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* \brief Draw a raw image at given position on LCD.
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*
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* \param x X-coordinate of image start.
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* \param y Y-coordinate of image start.
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* \param pImage Image buffer.
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* \param width Image width.
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* \param height Image height.
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*/
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void LCDD_DrawImage( uint32_t dwX, uint32_t dwY, const uint8_t *pImage, uint32_t dwWidth, uint32_t dwHeight )
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{
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uint32_t dwCursor ;
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LCD_SetWindow( dwX, dwY, dwWidth, dwHeight ) ;
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LCD_SetCursor( dwX, dwY ) ;
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LCD_WriteRAM_Prepare() ;
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for ( dwCursor=dwWidth*dwHeight; dwCursor != 0; dwCursor-- )
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{
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LCD_D() = *pImage++ ;
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LCD_D() = *pImage++ ;
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LCD_D() = *pImage++ ;
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}
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LCD_SetWindow( 0, 0, BOARD_LCD_WIDTH, BOARD_LCD_HEIGHT ) ;
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}
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/*
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* \brief Draw a raw image at given position on LCD.
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*
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* \param dwX X-coordinate of image start.
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* \param dwY Y-coordinate of image start.
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* \param pGIMPImage Image data.
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*/
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void LCDD_DrawGIMPImage( uint32_t dwX, uint32_t dwY, const SGIMPImage* pGIMPImage )
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{
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uint32_t dw ;
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register uint32_t dwLength ;
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uint8_t* pucData ;
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// Draw raw RGB bitmap
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LCD_SetWindow( dwX, dwY, pGIMPImage->dwWidth, pGIMPImage->dwHeight ) ;
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LCD_SetCursor( dwX, dwY ) ;
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LCD_WriteRAM_Prepare() ;
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dwLength = pGIMPImage->dwWidth*pGIMPImage->dwHeight ;
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pucData = pGIMPImage->pucPixel_data ;
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for ( dw=0; dw < dwLength; dw++ )
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{
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LCD_D() = (*pucData++) ;
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LCD_D() = (*pucData++) ;
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LCD_D() = (*pucData++) ;
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}
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LCD_SetWindow( 0, 0, BOARD_LCD_WIDTH, BOARD_LCD_HEIGHT ) ;
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}
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/*
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* \brief Clear a window with an color.
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*
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* \param dwX X-coordinate of the window.
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* \param dwY Y-coordinate of the window.
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* \param dwWidth window width.
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* \param dwHeight window height.
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* \param dwColor background color
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*/
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extern void LCDD_ClearWindow( uint32_t dwX, uint32_t dwY, uint32_t dwWidth, uint32_t dwHeight, uint32_t dwColor )
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{
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uint32_t dw ;
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LCD_SetCursor( dwX, dwY) ;
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LCD_WriteRAM_Prepare() ;
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for ( dw = dwWidth * dwHeight; dw > 0; dw-- )
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{
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LCD_WriteRAM( dwColor ) ;
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}
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}
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