File content as of revision 1:cd4cc4298b2a:

//
// uVGAIII is a class to drive 4D Systems TFT touch screens
//
// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
//
// uVGAIII is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// uVGAIII 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with uVGAIII.  If not, see <http://www.gnu.org/licenses/>.

// @author Stephane Rochon

#include "mbed.h"

// Debug Verbose on terminal enabled
#ifndef DEBUGMODE
#define DEBUGMODE 1
#endif

// Common WAIT value in millisecond
#define TEMPO 5

// 4DGL Functions values
// Graphic Commands values
#define CLS          0xFFCD
#define BCKGDCOLOR   0xFFA4
#define SCREENMODE   0xFF9E
#define CIRCLE       0xFFC3
#define CIRCLE_F     0xFFC2
#define TRIANGLE     0xFFBF
#define TRIANGLE_F   0xFFA9
#define LINE         0xFFC8
#define RECTANGLE    0xFFC5
#define RECTANGLE_F  0xFFC4
#define ELLIPSE      0xFFB2
#define ELLIPSE_F    0xFFB1
#define PUTPIXEL     0xFFC1
#define READPIXEL    0xFFC0
#define SCREENCOPY   0xFFAD
#define CLIPPING     0xFFA2
#define SETCLIPWIN   0xFFB5
#define EXTCLIPREG   0xFFB3
#define BUTTON       0x0011
#define PANEL        0xFFAF
#define SLIDER       0xFFAE
#define CHANGECOLOR  0xFFB4
#define MOVEORIGIN   0xFFCC
#define LINEPATTERN  0xFF9B
#define OUTLINECOLOR 0xFF9D
#define TRANSPARENCY 0xFFA0
#define TRANSPCOLOR  0xFFA1
#define PARAMETERS   0xFFCE

// System Commands
#define BAUDRATE     0x0026
#define SPEVERSION   0x001B
#define PMMCVERSION  0x001C
#define SETVOLUME    0xFF00

// Text and String Commands
#define MOVECURSOR   0xFFE9
#define PUTCHAR      0xFFFE
#define SETFONT      0xFFE5
#define TEXTOPACITY  0xFFDF
#define TEXTFGCOLOR  0xFFE7
#define TEXTBGCOLOR  0xFFE6
#define TEXTWIDTH    0xFFE4
#define TEXTHEIGHT   0xFFE3
#define TEXTXGAP     0xFFE2
#define TEXTYGAP     0xFFE1
#define TEXTBOLD     0xFFDE
#define TEXTINVERSE  0xFFDC
#define TEXTITALIC   0xFFDD
#define TEXTUNDLINE  0xFFDB
#define TEXTATTRIBU  0xFFDA
#define PUTSTRING    0x0018
#define CHARWIDTH    0x001E
#define CHARHEIGHT   0x001D
#define GETTOUCH     '\x6F'
#define WAITTOUCH    '\x77'
#define SETTOUCH     '\x75'

// Touch Screen Commands
#define TOUCHSET     0xFF38
#define TOUCHGET     0xFF37
#define TOUCHDETECT  0xFF39

// Slider
#define INTENDED     '\x00'
#define S_RAISED     '\x01'
#define HIDDEN       '\x02'

// Button
#define DEPRESSED    '\x00'
#define B_RAISED     '\x01'

// Panel
#define RECESSED     '\x00'
#define P_RAISED     '\x01'

// Screen answers
#define ACK          '\x06'
#define NAK          '\x15'

// Screen states
#define OFF          '\x00'
#define ON           '\x01'

// Graphics parameters
#define OBJECTCOLOR    18
#define RESOLUTION     32
#define PGDISPLAY      33
#define PGREAD         34
#define PGWRITE        35

// Graphics modes
#define SOLID        '\x00'
#define WIREFRAME    '\x01'

// Text modes
#define TRANSPARENT  '\x00'
#define OPAQUE       '\x01'

// Fonts Sizes
#define FONT1        '\x00'      // 7X8
#define FONT2        '\x01'      // 8X8
#define FONT3        '\x02'      // 8X12

// Touch Values
#define MOVE         '\x03'
#define STATUS       '\x00'
#define GETXPOSITION '\x01'
#define GETYPOSITION '\x02'

// Data speed
#define BAUD_110     0x0000
#define BAUD_300     0x0001
#define BAUD_600     0x0002
#define BAUD_1200    0x0003
#define BAUD_2400    0x0004
#define BAUD_4800    0x0005
#define BAUD_9600    0x0006
#define BAUD_14400   0x0007
#define BAUD_19200   0x0008
#define BAUD_31250   0x0009
#define BAUD_38400   0x000A
#define BAUD_56000   0x000B
#define BAUD_57600   0x000C
#define BAUD_115200  0x000D
#define BAUD_128000  0x000E
#define BAUD_256000  0x000F

// Defined Colors
#define BLACK   0x000000
#define WHITE   0xFFFFFF
#define LGREY   0xBFBFBF
#define DGREY   0x5F5F5F
#define RED     0xFF0000
#define LIME    0x00FF00
#define BLUE    0x0000FF
#define YELLOW  0xFFFF00
#define CYAN    0x00FFFF
#define MAGENTA 0xFF00FF
#define SILVER  0xC0C0C0
#define GRAY    0x808080
#define MAROON  0x800000
#define OLIVE   0x808000
#define GREEN   0x008000
#define PURPLE  0x800080
#define TEAL    0x008080
#define NAVY    0x000080

// Mode data
#define BACKLIGHT    '\x00'
#define DISPLAY      '\x01'
#define CONTRAST     '\x02'
#define POWER        '\x03'
#define ORIENTATION  '\x04'
#define TOUCH_CTRL   '\x05'
#define IMAGE_FORMAT '\x06'
#define PROTECT_FAT  '\x08'

// change this to your specific screen (newer versions) if needed
// Startup orientation is PORTRAIT so SIZE_X must be lesser than SIZE_Y
#define SIZE_X       480
#define SIZE_Y       800

#define IS_LANDSCAPE 0
#define IS_PORTRAIT  1

// Screen orientation
#define LANDSCAPE    '\x00'
#define LANDSCAPE_R  '\x01'
#define PORTRAIT     '\x02'
#define PORTRAIT_R   '\x03'

/**
 * This is a class for uVGAIII
 */
class uVGAIII : public Stream
{

public :

    uVGAIII(PinName tx, PinName rx, PinName rst);

// General Commands *******************************************************************************

/** Clear the entire screen using the current background colour */
    void cls();

/** Reset screen */
    void reset();
    
/** Set serial Baud rate (both sides : screen and mbed)
* @param Speed Correct BAUD value (see uVGAIII.h)
*/   
    void baudrate(int speed);

/** Set internal speaker to specified value
* @param value Correct range is 8 - 127
*/
    void set_volume(char value);

// Graphics Commands
    void screen_mode(char mode);
    void background_color(int color);
    void circle(int x , int y , int radius, int color);
    void filled_circle(int x, int y, int radius, int color);
    void triangle(int, int, int, int, int, int, int);
    void filled_triangle(int, int, int, int, int, int, int);
    void line(int, int, int, int, int);
    void rectangle(int, int, int, int, int);
    void filled_rectangle(int, int, int, int, int);
    void ellipse(int, int, int, int, int);
    void filled_ellipse(int, int, int, int, int);
    void button(int, int, int, int, int, int, int, int, char *);
    void panel(int, int, int, int, int, int);
    void slider(char, int, int, int, int, int, int, int);
    void put_pixel(int, int, int);
    int  read_pixel(int, int);
    void screen_copy(int, int, int, int, int, int);
    void clipping(char);
    void set_clipping_win(int, int, int, int);
    void extend_clip_region();
    void change_color(int, int);
    void move_origin(int, int);
    void line_pattern(int);
    void outline_color(int);
    void transparency(char);
    void transparent_color(int);
    void graphics_parameters(int, int);

// Texts Commands
    void set_font(char);
    void move_cursor(int, int);
    void text_opacity(char);
    void text_width(int);
    void text_height(int);
    void text_x_gap(int);
    void text_y_gap(int);
    void text_bold(char);
    void text_inverse(char);
    void text_italic(char);
    void text_underline(char);
    void text_attributes(int);
    void put_char(char);
    void put_string(char *);
    void text_fgd_color(int);
    void text_bgd_color(int);
    void char_width(char);
    void char_height(char);

    void locate(char, char);
    void color(int);
    void putc(char);
    void puts(char *);

// Touch Command
    void detect_touch_region(int, int, int, int);
    void touch_get_x(int *);
    void touch_get_y(int *);
    void touch_set(char);
    int touch_status(void);

// Screen Version Data
    int version;
    int SPEversion;
    int PmmCversion;

// Text data
    char current_col;
    char current_row;
    int  current_color;
    char current_font;
    char current_orientation;
    char max_col;
    char max_row;
    int current_w, current_h;
    int current_fx, current_fy;

protected :

    Serial     _cmd;
    DigitalOut _rst;
    
    //used by printf
    virtual int _putc(int c) {
        putc(c);
        return 0;
    };
    virtual int _getc() {
        return -1;
    }

    void freeBUFFER  (void);
    void writeBYTE   (char);
    int  writeCOMMAND(char *, int, int);
    int  readVERSION (char *, int);
    void getTOUCH    (char *, int, int *);
    int  getSTATUS   (char *, int);
    void speversion  (void);
    void pmmcversion (void);
#if DEBUGMODE
    Serial pc;
#endif // DEBUGMODE
};

typedef unsigned char BYTE;