en 129
TFTLCD with FastIO
Diff: lcd_base.cpp
- Revision:
- 4:3ac4239f6c9c
- Parent:
- 3:64a5b67d5b51
- Child:
- 7:5c418fc1879f
--- a/lcd_base.cpp Sun Dec 02 01:44:23 2012 +0000
+++ b/lcd_base.cpp Sun Dec 02 05:44:52 2012 +0000
@@ -22,9 +22,13 @@
#include "lcd_base.h"
#include "helpers.h"
-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 )
-{}
+LCD::LCD( unsigned short width, unsigned short height ,PinName CS, PinName RS, PinName RESET )
+ : _disp_width( width ), _disp_height( height ), _lcd_pin_cs( CS ), _lcd_pin_rs( RS ), _lcd_pin_reset( RESET )
+{
+ SetForeground();
+ SetBackground();
+ _font.font = 0;
+}
inline
void LCD::SetForeground( unsigned short color )
@@ -64,12 +68,11 @@
void LCD::FillScreen( int color )
{
unsigned short rgb = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color;
- _lcd_pin_cs = LOW;
+ Activate();
ClearXY();
- _lcd_pin_rs = HIGH;
for ( int i = 0; i < ( ( _disp_width ) * ( _disp_height ) ); i++ )
WriteData( rgb );
- _lcd_pin_cs = HIGH;
+ Deactivate();
}
inline
@@ -80,12 +83,11 @@
void LCD::DrawPixel( unsigned short x, unsigned short y, int color )
{
- _lcd_pin_cs = LOW;
+ Activate();
SetXY( x, y, x, y );
WriteData( color == -1 ? _background :
color == -2 ? _foreground : color );
- _lcd_pin_cs = HIGH;
- ClearXY();
+ Deactivate();
}
void LCD::DrawLine( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, int color )
@@ -116,60 +118,58 @@
swap( ushort, y1, y2 )
DrawVLine( x1, y1, y2 - y1, color );
}
- else if ( abs( x2 - x1 ) > abs( y2 - y1 ) )
+ else
{
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 )
+ Activate();
+ if ( abs( x2 - x1 ) > abs( y2 - y1 ) )
{
- for ( int i = x1; i >= x2; i-- )
+ delta = ( double( y2 - y1 ) / double( x2 - x1 ) );
+ ty = double( y1 );
+ if ( x1 > x2 )
{
- SetXY( i, int( ty + 0.5 ), i, int( ty + 0.5 ) );
- WriteData( usedColor );
- ty = ty - delta;
+ 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;
+ }
}
}
else
{
- for ( int i = x1; i <= x2; i++ )
+ delta = ( float( x2 - x1 ) / float( y2 - y1 ) );
+ tx = float( x1 );
+ if ( y1 > y2 )
{
- SetXY( i, int( ty + 0.5 ), i, int( ty + 0.5 ) );
- WriteData( usedColor );
- ty = ty + delta;
+ 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;
+ Deactivate();
}
- 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 )
@@ -263,7 +263,7 @@
int y1 = radius;
unsigned short usedColor = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color;
- _lcd_pin_cs = LOW;
+ Activate();
SetXY( x, y + radius, x, y + radius );
WriteData( usedColor );
SetXY( x, y - radius, x, y - radius );
@@ -301,14 +301,13 @@
SetXY( x - y1, y - x1, x - y1, y - x1 );
WriteData( usedColor );
}
- _lcd_pin_cs = HIGH;
- ClearXY();
+ Deactivate();
}
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;
+ Activate();
for ( int y1 = -radius; y1 <= radius; y1++ )
for ( int x1 = -radius; x1 <= radius; x1++ )
if ( x1 * x1 + y1 * y1 <= radius * radius )
@@ -316,8 +315,7 @@
SetXY( x + x1, y + y1, x + x1, y + y1 );
WriteData( usedColor );
}
- _lcd_pin_cs = HIGH;
- ClearXY();
+ Deactivate();
}
void LCD::Print( const char *str, unsigned short x, unsigned short y, int fgColor, int bgColor, unsigned short deg )
@@ -352,33 +350,29 @@
{
int tx, ty, tc, tsx, tsy;
+ Activate();
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 );
@@ -387,11 +381,9 @@
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++ )
@@ -402,10 +394,9 @@
WriteData( data[ ( ty * sx ) + tx ] );
}
}
- _lcd_pin_cs = HIGH;
}
}
- ClearXY();
+ Deactivate();
}
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 )
@@ -418,7 +409,7 @@
DrawBitmap( x, y, sx, sy, data );
else
{
- _lcd_pin_cs = LOW;
+ Activate();
for ( ty = 0; ty < sy; ty++ )
for ( tx = 0; tx < sx; tx++ )
{
@@ -428,30 +419,37 @@
SetXY( newx, newy, newx, newy );
WriteData( data[ ( ty * sx ) + tx ] );
}
- _lcd_pin_cs = HIGH;
+ Deactivate();
}
- ClearXY();
+}
+
+inline
+void LCD::Activate( void )
+{
+ _lcd_pin_cs = LOW;
+}
+
+inline
+void LCD::Deactivate( void )
+{
+ _lcd_pin_cs = HIGH;
}
/*
-void LCD::writeCmd( unsigned short cmd )
+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 )
+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;
}
*/
@@ -463,7 +461,7 @@
}
/*
-void LCD::setXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 )
+void LCD::SetXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 )
{
if ( _orientation == LANDSCAPE )
{
@@ -474,12 +472,12 @@
swap( uint16_t, y1, y2 )
}
- writeCmdData( 0x44, ( x2 << 8 ) + x1 );
- writeCmdData( 0x45, y1 );
- writeCmdData( 0x46, y2 );
- writeCmdData( 0x4e, x1 );
- writeCmdData( 0x4f, y1 );
- writeCmd( 0x22 );
+ WriteCmdData( 0x44, ( x2 << 8 ) + x1 );
+ WriteCmdData( 0x45, y1 );
+ WriteCmdData( 0x46, y2 );
+ WriteCmdData( 0x4e, x1 );
+ WriteCmdData( 0x4f, y1 );
+ WriteCmd( 0x22 );
}
*/
@@ -495,24 +493,22 @@
{
unsigned short usedColor = color == -1 ? _background : color == -2 ? _foreground : ( unsigned short ) color;
- _lcd_pin_cs = LOW;
+ Activate();
SetXY( x, y, x + len, y );
for ( int i = 0; i < len + 1; i++ )
WriteData( usedColor );
- _lcd_pin_cs = HIGH;
- ClearXY();
+ Deactivate();
}
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;
+ Activate();
SetXY( x, y, x, y + len );
for ( int i = 0; i < len; i++ )
WriteData( usedColor );
- _lcd_pin_cs = HIGH;
- ClearXY();
+ Deactivate();
}
void LCD::PrintChar( char c, unsigned short x, unsigned short y, int fgColor, int bgColor )
@@ -523,7 +519,7 @@
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;
+ Activate();
if ( _orientation == PORTRAIT )
{
@@ -564,8 +560,7 @@
temp += ( _font.width / 8 );
}
}
- _lcd_pin_cs = HIGH;
- ClearXY();
+ Deactivate();
}
void LCD::RotateChar( char c, unsigned short x, unsigned short y, int pos, int fgColor, int bgColor, unsigned short deg )
@@ -579,7 +574,7 @@
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;
+ Activate();
temp = ( ( c - _font.offset ) * ( ( _font.width / 8 ) * _font.height ) ) + 4;
for ( j = 0; j < _font.height; j++ )
@@ -602,6 +597,5 @@
}
temp += ( _font.width / 8 );
}
- _lcd_pin_cs = HIGH;
- ClearXY();
+ Deactivate();
}