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1.44 tft lcd display
Dependencies: TFT_fonts mbed-os
Fork of newTFTLCD by
Diff: lcd_base.cpp
- Revision:
- 0:881ff0b71102
- Child:
- 1:14bef43daf6f
diff -r 000000000000 -r 881ff0b71102 lcd_base.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lcd_base.cpp Sat Dec 01 19:38:53 2012 +0000 @@ -0,0 +1,610 @@ +/* + * Copyright (C)2010-2012 Henning Karlsen. All right reserved. + * Copyright (C)2012 Todor Todorov. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to: + * + * Free Software Foundation, Inc. + * 51 Franklin St, 5th Floor, Boston, MA 02110-1301, USA + * + *********************************************************************/ +#include "lcd_base.h" + +#ifndef ushort +typedef unsigned short ushort; +#endif + +LCD::LCD( unsigned short width, unsigned short height ,PinName CS, PinName RS ) + : _disp_width( width ), _disp_height( height ), _lcd_pin_cs( CS ), _lcd_pin_rs( RS ) +{} + +inline +void LCD::SetForeground( unsigned short color ) +{ + _foreground = color; +} + +inline +void LCD::SetBackground( unsigned short color ) +{ + _background = color; +} + +void LCD::SetFont( const char *font ) +{ + _font.font = font; + _font.width = font[ 0 ]; + _font.height = font[ 1 ]; + _font.offset = font[ 2 ]; + _font.numchars = font[ 3 ]; +} + +inline +unsigned short LCD::GetWidth( void ) +{ + if ( _orientation == LANDSCAPE ) return _disp_height; + return _disp_width; +} + +inline +unsigned short LCD::GetHeight( void ) +{ + if ( _orientation == LANDSCAPE ) return _disp_width; + return _disp_height; +} + +void LCD::FillScreen( int color ) +{ + unsigned short rgb = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color; + _lcd_pin_cs = LOW; + clearXY(); + _lcd_pin_rs = HIGH; + for ( int i = 0; i < ( ( _disp_width + 1 ) * ( _disp_height + 1 ) ); i++ ) + writeData( rgb ); + _lcd_pin_cs = HIGH; +} + +inline +void LCD::ClearScreen( void ) +{ + FillScreen( -1 ); +} + +void LCD::DrawPixel( unsigned short x, unsigned short y, int color ) +{ + _lcd_pin_cs = LOW; + setXY( x, y, x, y ); + writeData( color == -1 ? _background : + color == -2 ? _foreground : color ); + _lcd_pin_cs = HIGH; + clearXY(); +} + +void LCD::DrawLine( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, int color ) +{ + + double delta, tx, ty; + + if ( ( ( x2 - x1 ) < 0 ) ) + { + swap( ushort, x1, x2 ) + swap( ushort, y1, y2 ) + } + if ( ( ( y2 - y1 ) < 0 ) ) + { + swap( ushort, x1, x2 ) + swap( ushort, y1, y2 ) + } + + if ( y1 == y2 ) + { + if ( x1 > x2 ) + swap( ushort, x1, x2 ) + drawHLine( x1, y1, x2 - x1, color ); + } + else if ( x1 == x2 ) + { + if ( y1 > y2 ) + swap( ushort, y1, y2 ) + drawVLine( x1, y1, y2 - y1, color ); + } + else if ( abs( x2 - x1 ) > abs( y2 - y1 ) ) + { + unsigned short usedColor = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color; + _lcd_pin_cs = LOW; + delta = ( double( y2 - y1 ) / double( x2 - x1 ) ); + ty = double( y1 ); + if ( x1 > x2 ) + { + for ( int i = x1; i >= x2; i-- ) + { + setXY( i, int( ty + 0.5 ), i, int( ty + 0.5 ) ); + writeData( usedColor ); + ty = ty - delta; + } + } + else + { + for ( int i = x1; i <= x2; i++ ) + { + setXY( i, int( ty + 0.5 ), i, int( ty + 0.5 ) ); + writeData( usedColor ); + ty = ty + delta; + } + } + _lcd_pin_cs = HIGH; + } + else + { + unsigned short usedColor = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color; + _lcd_pin_cs = LOW; + delta = ( float( x2 - x1 ) / float( y2 - y1 ) ); + tx = float( x1 ); + if ( y1 > y2 ) + { + for ( int i = y2 + 1; i > y1; i-- ) + { + setXY( int( tx + 0.5 ), i, int( tx + 0.5 ), i ); + writeData( usedColor ); + tx = tx + delta; + } + } + else + { + for ( int i = y1; i < y2 + 1; i++ ) + { + setXY( int( tx + 0.5 ), i, int( tx + 0.5 ), i ); + writeData( usedColor ); + tx = tx + delta; + } + } + _lcd_pin_cs = HIGH; + } + + clearXY(); +} + +void LCD::DrawRect( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, int color ) +{ + if ( x1 > x2 ) swap( ushort, x1, x2 ) + if ( y1 > y2 ) swap( ushort, y1, y2 ) + + drawHLine( x1, y1, x2 - x1, color ); + drawHLine( x1, y2, x2 - x1, color ); + drawVLine( x1, y1, y2 - y1, color ); + drawVLine( x2, y1, y2 - y1, color ); +} + +void LCD::DrawRoundRect( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, int color ) +{ + if ( x1 > x2 ) swap( ushort, x1, x2 ) + if ( y1 > y2 ) swap( ushort, y1, y2 ) + + if ( ( x2 - x1 ) > 4 && ( y2 - y1 ) > 4 ) + { + DrawPixel( x1 + 1, y1 + 1, color ); + DrawPixel( x2 - 1, y1 + 1, color ); + DrawPixel( x1 + 1, y2 - 1, color ); + DrawPixel( x2 - 1, y2 - 1, color ); + drawHLine( x1 + 2, y1, x2 - x1 - 4, color ); + drawHLine( x1 + 2, y2, x2 - x1 - 4, color ); + drawVLine( x1, y1 + 2, y2 - y1 - 4, color ); + drawVLine( x2, y1 + 2, y2 - y1 - 4, color ); + } +} + +void LCD::FillRect( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, int color ) +{ + if ( x1 > x2 ) swap( ushort, x1, x2 ); + if ( y1 > y2 ) swap( ushort, y1, y2 ); + + if ( _orientation == PORTRAIT ) + { + for ( int i = 0; i < ( ( y2 - y1 ) / 2 ) + 1; i++ ) + { + drawHLine( x1, y1 + i, x2 - x1, color ); + drawHLine( x1, y2 - i, x2 - x1, color ); + } + } + else + { + for ( int i = 0; i < ( ( x2 - x1 ) / 2 ) + 1; i++ ) + { + drawVLine( x1 + i, y1, y2 - y1, color ); + drawVLine( x2 - i, y1, y2 - y1, color ); + } + } +} + +void LCD::FillRoundRect( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, int color ) +{ + if ( x1 > x2 ) swap( ushort, x1, x2 ) + if ( y1 > y2 ) swap( ushort, y1, y2 ) + + if ( ( x2 - x1 ) > 4 && ( y2 - y1 ) > 4 ) + { + for ( int i = 0; i < ( ( y2 - y1 ) / 2 ) + 1; i++ ) + { + switch ( i ) + { + case 0: + drawHLine( x1 + 2, y1 + i, x2 - x1 - 4, color ); + drawHLine( x1 + 2, y2 - i, x2 - x1 - 4, color ); + break; + + case 1: + drawHLine( x1 + 1, y1 + i, x2 - x1 - 2, color ); + drawHLine( x1 + 1, y2 - i, x2 - x1 - 2, color ); + break; + + default: + drawHLine( x1, y1 + i, x2 - x1, color ); + drawHLine( x1, y2 - i, x2 - x1, color ); + break; + } + } + } +} + +void LCD::DrawCircle( unsigned short x, unsigned short y, unsigned short radius, int color ) +{ + int f = 1 - radius; + int ddF_x = 1; + int ddF_y = -2 * radius; + int x1 = 0; + int y1 = radius; + unsigned short usedColor = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color; + + _lcd_pin_cs = LOW; + setXY( x, y + radius, x, y + radius ); + writeData( usedColor ); + setXY( x, y - radius, x, y - radius ); + writeData( usedColor ); + setXY( x + radius, y, x + radius, y ); + writeData( usedColor ); + setXY( x - radius, y, x - radius, y ); + writeData( usedColor ); + + while ( x1 < y1 ) + { + if ( f >= 0 ) + { + y1--; + ddF_y += 2; + f += ddF_y; + } + x1++; + ddF_x += 2; + f += ddF_x; + setXY( x + x1, y + y1, x + x1, y + y1 ); + writeData( usedColor ); + setXY( x - x1, y + y1, x - x1, y + y1 ); + writeData( usedColor ); + setXY( x + x1, y - y1, x + x1, y - y1 ); + writeData( usedColor ); + setXY( x - x1, y - y1, x - x1, y - y1 ); + writeData( usedColor ); + setXY( x + y1, y + x1, x + y1, y + x1 ); + writeData( usedColor ); + setXY( x - y1, y + x1, x - y1, y + x1 ); + writeData( usedColor ); + setXY( x + y1, y - x1, x + y1, y - x1 ); + writeData( usedColor ); + setXY( x - y1, y - x1, x - y1, y - x1 ); + writeData( usedColor ); + } + _lcd_pin_cs = HIGH; + clearXY(); +} + +void LCD::FillCircle( unsigned short x, unsigned short y, unsigned short radius, int color ) +{ + unsigned short usedColor = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color; + _lcd_pin_cs = LOW; + for ( int y1 = -radius; y1 <= radius; y1++ ) + for ( int x1 = -radius; x1 <= radius; x1++ ) + if ( x1 * x1 + y1 * y1 <= radius * radius ) + { + setXY( x + x1, y + y1, x + x1, y + y1 ); + writeData( usedColor ); + } + _lcd_pin_cs = HIGH; + clearXY(); +} + +void LCD::Print( const char *str, unsigned short x, unsigned short y, int fgColor, int bgColor, unsigned short deg ) +{ + int stl, i; + + stl = strlen( str ); + + if ( _orientation == PORTRAIT ) + { + if ( x == RIGHT ) + x = ( _disp_width + 1 ) - ( stl * _font.width ); + if ( x == CENTER ) + x = ( ( _disp_width + 1 ) - ( stl * _font.width ) ) / 2; + } + else + { + if ( x == RIGHT ) + x = ( _disp_height + 1 ) - ( stl * _font.width ); + if ( x == CENTER ) + x = ( ( _disp_height + 1 ) - ( stl * _font.width ) ) / 2; + } + + for ( i = 0; i < stl; i++ ) + if ( deg == 0 ) + printChar( *str++, x + ( i * ( _font.width ) ), y, fgColor, bgColor ); + else + rotateChar( *str++, x, y, i, fgColor, bgColor, deg ); +} + +void LCD::DrawBitmap( unsigned short x, unsigned short y, unsigned short sx, unsigned short sy, bitmap_t data, unsigned char scale ) +{ + int tx, ty, tc, tsx, tsy; + + if ( scale == 1 ) + { + if ( _orientation == PORTRAIT ) + { + _lcd_pin_cs = LOW; + setXY( x, y, x + sx - 1, y + sy - 1 ); + for ( tc = 0; tc < ( sx * sy ); tc++ ) + writeData( data[ tc ] ); + _lcd_pin_cs = HIGH; + } + else + { + _lcd_pin_cs = LOW; + for ( ty = 0; ty < sy; ty++ ) + { + setXY( x, y + ty, x + sx - 1, y + ty ); + for ( tx = sx; tx >= 0; tx-- ) + writeData( data[ ( ty * sx ) + tx ] ); + } + _lcd_pin_cs = HIGH; + } + } + else + { + if ( _orientation == PORTRAIT ) + { + _lcd_pin_cs = LOW; + for ( ty = 0; ty < sy; ty++ ) + { + setXY( x, y + ( ty * scale ), x + ( ( sx * scale ) - 1 ), y + ( ty * scale ) + scale ); + for ( tsy = 0; tsy < scale; tsy++ ) + for ( tx = 0; tx < sx; tx++ ) + for ( tsx = 0; tsx < scale; tsx++ ) + writeData( data[ ( ty * sx ) + tx ] ); + } + _lcd_pin_cs = HIGH; + } + else + { + _lcd_pin_cs = LOW; + for ( ty = 0; ty < sy; ty++ ) + { + for ( tsy = 0; tsy < scale; tsy++ ) + { + setXY( x, y + ( ty * scale ) + tsy, x + ( ( sx * scale ) - 1 ), y + ( ty * scale ) + tsy ); + for ( tx = sx; tx >= 0; tx-- ) + for ( tsx = 0; tsx < scale; tsx++ ) + writeData( data[ ( ty * sx ) + tx ] ); + } + } + _lcd_pin_cs = HIGH; + } + } + clearXY(); +} + +void LCD::DrawBitmap( unsigned short x, unsigned short y, unsigned short sx, unsigned short sy, bitmap_t data, unsigned short deg, unsigned short rox, unsigned short roy ) +{ + int tx, ty, newx, newy; + double radian; + radian = deg * 0.0175; + + if ( deg == 0 ) + DrawBitmap( x, y, sx, sy, data ); + else + { + _lcd_pin_cs = LOW; + for ( ty = 0; ty < sy; ty++ ) + for ( tx = 0; tx < sx; tx++ ) + { + newx = x + rox + ( ( ( tx - rox ) * cos( radian ) ) - ( ( ty - roy ) * sin( radian ) ) ); + newy = y + roy + ( ( ( ty - roy ) * cos( radian ) ) + ( ( tx - rox ) * sin( radian ) ) ); + + setXY( newx, newy, newx, newy ); + writeData( data[ ( ty * sx ) + tx ] ); + } + _lcd_pin_cs = HIGH; + } + clearXY(); +} + +/* +void LCD::writeCmd( unsigned short cmd ) +{ + _lcd_pin_rs = LOW; + _lcd_pin_cs = LOW; + _lcd_port->write( cmd ); + pulseLow( _lcd_pin_wr ); + _lcd_pin_cs = HIGH; +} +*/ + +/* +void LCD::writeData( unsigned short data ) +{ + _lcd_pin_rs = HIGH; + _lcd_pin_cs = LOW; + _lcd_port->write( data ); + pulseLow( _lcd_pin_wr ); + _lcd_pin_cs = HIGH; +} +*/ + +inline +void LCD::writeCmdData( unsigned short cmd, unsigned short data ) +{ + writeCmd( cmd ); + writeData( data ); +} + +/* +void LCD::setXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 ) +{ + if ( _orientation == LANDSCAPE ) + { + swap( uint16_t, x1, y1 ) + swap( uint16_t, x2, y2 ) + y1 = _disp_height - y1; + y2 = _disp_height - y2; + swap( uint16_t, y1, y2 ) + } + + writeCmdData( 0x44, ( x2 << 8 ) + x1 ); + writeCmdData( 0x45, y1 ); + writeCmdData( 0x46, y2 ); + writeCmdData( 0x4e, x1 ); + writeCmdData( 0x4f, y1 ); + writeCmd( 0x22 ); +} +*/ + +void LCD::clearXY() +{ + if ( _orientation == PORTRAIT ) + setXY( 0, 0, _disp_width, _disp_height ); + else + setXY( 0, 0, _disp_height, _disp_width ); +} + +void LCD::drawHLine( unsigned short x, unsigned short y, unsigned short len, int color ) +{ + unsigned short usedColor = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color; + + _lcd_pin_cs = LOW; + setXY( x, y, x + len, y ); + for ( int i = 0; i < len + 1; i++ ) + writeData( usedColor ); + _lcd_pin_cs = HIGH; + clearXY(); +} + +void LCD::drawVLine( unsigned short x, unsigned short y, unsigned short len, int color ) +{ + unsigned short usedColor = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color; + + _lcd_pin_cs = LOW; + setXY( x, y, x, y + len ); + for ( int i = 0; i < len; i++ ) + writeData( usedColor ); + _lcd_pin_cs = HIGH; + clearXY(); +} + +void LCD::printChar( char c, unsigned short x, unsigned short y, int fgColor, int bgColor ) +{ + uint8_t i, ch; + uint16_t j; + uint16_t temp; + unsigned short usedColorFG = fgColor == -1 ? _background : fgColor == -2 ? _foreground : ( unsigned short ) fgColor; + unsigned short usedColorBG = bgColor == -1 ? _background : bgColor == -2 ? _foreground : ( unsigned short ) bgColor; + + _lcd_pin_cs = LOW; + + if ( _orientation == PORTRAIT ) + { + setXY( x, y, x + _font.width - 1, y + _font.height - 1 ); + + temp = ( ( c - _font.offset ) * ( ( _font.width / 8 ) * _font.height ) ) + 4; + for ( j = 0; j < ( ( _font.width / 8 ) * _font.height ); j++ ) + { + ch = _font.font[ temp ]; + for ( i = 0; i < 8; i++ ) + { + if ( ( ch & ( 1 << ( 7 - i ) ) ) != 0 ) + writeData( usedColorFG ); + else + writeData( usedColorBG ); + } + temp++; + } + } + else + { + temp = ( ( c - _font.offset ) * ( ( _font.width / 8 ) * _font.height ) ) + 4; + + for ( j = 0; j < ( ( _font.width / 8 ) * _font.height ); j += ( _font.width / 8 ) ) + { + setXY( x, y + ( j / ( _font.width / 8 ) ), x + _font.width - 1, y + ( j / ( _font.width / 8 ) ) ); + for ( int zz = ( _font.width / 8 ) - 1; zz >= 0; zz-- ) + { + ch = _font.font[ temp + zz ]; + for ( i = 0; i < 8; i++ ) + { + if ( ( ch & ( 1 << i ) ) != 0 ) + writeData( usedColorFG ); + else + writeData( usedColorBG ); + } + } + temp += ( _font.width / 8 ); + } + } + _lcd_pin_cs = HIGH; + clearXY(); +} + +void LCD::rotateChar( char c, unsigned short x, unsigned short y, int pos, int fgColor, int bgColor, unsigned short deg ) +{ + uint8_t i, j, ch; + uint16_t temp; + int newx, newy; + double radian; + radian = deg * 0.0175; + + unsigned short usedColorFG = fgColor == -1 ? _background : fgColor == -2 ? _foreground : ( unsigned short ) fgColor; + unsigned short usedColorBG = bgColor == -1 ? _background : bgColor == -2 ? _foreground : ( unsigned short ) bgColor; + + _lcd_pin_cs = LOW; + + temp = ( ( c - _font.offset ) * ( ( _font.width / 8 ) * _font.height ) ) + 4; + for ( j = 0; j < _font.height; j++ ) + { + for ( int zz = 0; zz < ( _font.width / 8 ); zz++ ) + { + ch = _font.font[ temp + zz ]; + for ( i = 0; i < 8; i++ ) + { + newx = x + ( ( ( i + ( zz * 8 ) + ( pos * _font.width ) ) * cos( radian ) ) - ( ( j ) * sin( radian ) ) ); + newy = y + ( ( ( j ) * cos( radian ) ) + ( ( i + ( zz * 8 ) + ( pos * _font.width ) ) * sin( radian ) ) ); + + setXY( newx, newy, newx + 1, newy + 1 ); + + if ( ( ch & ( 1 << ( 7 - i ) ) ) != 0 ) + writeData( usedColorFG ); + else + writeData( usedColorBG ); + } + } + temp += ( _font.width / 8 ); + } + _lcd_pin_cs = HIGH; + clearXY(); +}