UniGraphic-Fork for ST7920-LCD-controller and SH1106. Tested with 128x64 LCD with SPI and 128x64-OLED with IIC
Dependents: UniGraphic-St7920-Test AfficheurUTILECO
Fork of UniGraphic by
Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller
Had to adapt LCD for following reasons:
- Give access to screenbuffer buffer[] to parent class
- pixel() and pixel_read() as they are hardware-dependent
- added reset-pin to IIC-Interface
GraphicDisplay:: sends buffer to LCD when auto_update is set to true.
Testprogram for ST7920 can be found here:
https://developer.mbed.org/users/charly/code/UniGraphic-St7920-Test/
Graphics/GraphicsDisplay.h
- Committer:
- Geremia
- Date:
- 2015-02-16
- Revision:
- 5:b222a9461d6b
- Parent:
- 3:48f3282c2be8
- Child:
- 10:668cf78ff93a
File content as of revision 5:b222a9461d6b:
/* mbed GraphicsDisplay Display Library Base Class * Copyright (c) 2007-2009 sford * Released under the MIT License: http://mbed.org/license/mit * * A library for providing a common base class for Graphics displays * To port a new display, derive from this class and implement * the constructor (setup the display), pixel (put a pixel * at a location), width and height functions. Everything else * (locate, printf, putc, cls, window, putp, fill, blit, blitbit) * will come for free. You can also provide a specialised implementation * of window and putp to speed up the results */ #ifndef MBED_GRAPHICSDISPLAY_H #define MBED_GRAPHICSDISPLAY_H #include "TextDisplay.h" #include "Terminal6x8.h" /* some RGB color definitions */ #define Black 0x0000 /* 0, 0, 0 */ #define Navy 0x000F /* 0, 0, 128 */ #define DarkGreen 0x03E0 /* 0, 128, 0 */ #define DarkCyan 0x03EF /* 0, 128, 128 */ #define Maroon 0x7800 /* 128, 0, 0 */ #define Purple 0x780F /* 128, 0, 128 */ #define Olive 0x7BE0 /* 128, 128, 0 */ #define LightGrey 0xC618 /* 192, 192, 192 */ #define DarkGrey 0x7BEF /* 128, 128, 128 */ #define Blue 0x001F /* 0, 0, 255 */ #define Green 0x07E0 /* 0, 255, 0 */ #define Cyan 0x07FF /* 0, 255, 255 */ #define Red 0xF800 /* 255, 0, 0 */ #define Magenta 0xF81F /* 255, 0, 255 */ #define Yellow 0xFFE0 /* 255, 255, 0 */ #define White 0xFFFF /* 255, 255, 255 */ #define Orange 0xFD20 /* 255, 165, 0 */ #define GreenYellow 0xAFE5 /* 173, 255, 47 */ /** Bitmap */ struct Bitmap_s{ int xSize; int ySize; int Byte_in_Line; char* data; }; /** A common base class for Graphics displays */ class GraphicsDisplay : public TextDisplay { public: /** Create a GraphicsDisplay interface * @param name The name used by the parent class to access the interface */ GraphicsDisplay(const char* name); ////// functions needing implementation in derived implementation class /////////////////////////////////////// ////// ---------------------------------------------------------------- /////////////////////////////////////// /** Draw a pixel in the specified color. * @note this method must be supported in the derived class. * @param x is the horizontal offset to this pixel. * @param y is the vertical offset to this pixel. * @param color defines the color for the pixel. */ virtual void pixel(int x, int y, unsigned short color) = 0; /** Set the window, which controls where items are written to the screen. * When something hits the window width, it wraps back to the left side * and down a row. If the initial write is outside the window, it will * be captured into the window when it crosses a boundary. * @param x is the left edge in pixels. * @param y is the top edge in pixels. * @param w is the window width in pixels. * @param h is the window height in pixels. * @note this method must be overridden in a derived class. */ virtual void window(int x, int y, int w, int h) = 0; /** Push a single pixel into the window and increment position. * You may first call window() then push pixels in loop. * @param color is the pixel color. * @note this method must be overridden in a derived class. */ virtual void window_pushpixel(unsigned short color) = 0; /** Push some pixels of the same color into the window and increment position. * You must first call window() then push pixels. * @param color is the pixel color. * @param count: how many */ virtual void window_pushpixel(unsigned short color, unsigned int count) = 0; /** Push array of pixel colors into the window and increment position. * You must first call window() then push pixels. * @param color is the pixel color. */ virtual void window_pushpixelbuf(unsigned short* color, unsigned int lenght) = 0; /** If framebuffer is used, it needs to be sent to LCD from time to time @note this method must be overridden in a derived class. @note real function for LCD, dummy for TFT */ virtual void copy_to_lcd() = 0; /////// functions that come for free, but can be overwritten/////////////////////////////////////////////////// /////// ----------------------------------------------------/////////////////////////////////////////////////// /** Set window to max possible size * May be overridden in a derived class. */ virtual void WindowMax(void); /** clear the entire screen * Basically it sets windomax then fill with background color * May be overridden in a derived class. */ virtual void cls(); /** draw a circle * * @param x0,y0 center * @param r radius * @param color 16 bit color * * */ virtual void circle(int x, int y, int r, unsigned short color); /** draw a filled circle * * @param x0,y0 center * @param r radius * @param color 16 bit color * */ virtual void fillcircle(int x, int y, int r, unsigned short color); /** draw a 1 pixel line * * @param x0,y0 start point * @param x1,y1 stop point * @param color 16 bit color * */ virtual void line(int x0, int y0, int x1, int y1, unsigned short color); /** draw a horizontal line * * @param x0 horizontal start * @param x1 horizontal stop * @param y vertical position * @param color 16 bit color * */ void hline(int x0, int x1, int y, unsigned short color); /** draw a vertical line * * @param x horizontal position * @param y0 vertical start * @param y1 vertical stop * @param color 16 bit color */ void vline(int y0, int y1, int x, unsigned short color); /** draw a rect * * @param x0,y0 top left corner * @param x1,y1 down right corner * @param color 16 bit color * * */ virtual void rect(int x0, int y0, int x1, int y1, unsigned short color); /** draw a filled rect * * @param x0,y0 top left corner * @param x1,y1 down right corner * @param color 16 bit color * */ virtual void fillrect(int x0, int y0, int x1, int y1, unsigned short color); /** setup cursor position for text * * @param x x-position (top left) * @param y y-position */ virtual void locate(int x, int y); /** put a char on the screen * * @param value char to print * @returns printed char * */ virtual int _putc(int value); /** draw a character on given position out of the active font to the TFT * * @param x x-position of char (top left) * @param y y-position * @param c char to print * */ virtual void character(int x, int y, int c); /** paint a bitmap on the TFT * * @param x,y : upper left corner * @param w width of bitmap * @param h high of bitmap * @param *bitmap pointer to the bitmap data * * bitmap format: 16 bit R5 G6 B5 * * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5 * use winhex to load this file and mark data stating at offset 0x46 to end * use edit -> copy block -> C Source to export C array * paste this array into your program * * define the array as static const unsigned char to put it into flash memory * cast the pointer to (unsigned char *) : * tft.Bitmap(10,40,309,50,(unsigned char *)scala); */ void Bitmap(int x, int y, int w, int h,unsigned char *bitmap); /** paint monochrome bitmap to screen * * @param bm Bitmap in flash * @param x x start * @param y y start * */ void Bitmap_BW(Bitmap_s bm, int x, int y); /** paint a 16 bit BMP from filesytem on the TFT (slow) * * @param x,y : position of upper left corner * @param *Name_BMP name of the BMP file with drive: "/local/test.bmp" * * @returns 1 if bmp file was found and painted * @returns 0 if bmp file was found not found * @returns -1 if file is no bmp * @returns -2 if bmp file is no 16 bit bmp * @returns -3 if bmp file is to big for screen * @returns -4 if buffer malloc go wrong * * bitmap format: 16 bit R5 G6 B5 * * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5 * copy to internal file system or SD card */ int BMP_16(int x, int y, const char *Name_BMP); /** select the font to use * * @param f pointer to font array * @param firstascii first ascii code present in font array, default 32 (space) * @param lastascii last ascii code present in font array, default 127 (DEL) * @param proportional enable/disable variable font width (default enabled) * * font array can created with GLCD Font Creator from http://www.mikroe.com * you have to add 4 parameter at the beginning of the font array to use: * - the number of byte / char (not used in this revision, set to whatever) * - the vertial size in pixel * - the horizontal size in pixel * - the number of byte per vertical line (not used in this revision, set to whatever) * you also have to change the array to cont unsigned char[] and __align(2) * */ void set_font(unsigned char* f, unsigned char firstascii=32, unsigned char lastascii=127, bool proportional = true); /** Get the number of columns based on the currently active font. * @returns number of columns. * @note this method may be overridden in a derived class. */ virtual int columns(); /** Get the number of rows based on the currently active font. * @returns number of rows. * @note this method may be overridden in a derived class. */ virtual int rows(); /** get the current oriented screen width in pixels * @returns screen width in pixels. */ int width(); /** get the current oriented screen height in pixels * @returns screen height in pixels. */ int height(); /** set the current oriented screen width in pixels * @param width screen width in pixels. */ void set_width(int width); /** set the current oriented screen height in pixels * @param height screen height in pixels. */ void set_height(int height); /** setup auto update of screen * * @param up 1 = on , 0 = off * if switched off the program has to call copy_to_lcd() * to update screen from framebuffer */ void set_auto_up(bool up); /** get status of the auto update function * * @returns if auto update is on */ bool get_auto_up(void); private: unsigned char* font; // display width and height related to current orientation int oriented_width; int oriented_height; // text char location int char_x; int char_y; int fontoffset;// bytes / char (short) int fonthor; // hor size of font (char) int fontvert; // ver size of font (char) int fontbpl; // bytes per line (char) unsigned char firstch; // first ascii code present in font array (usually 32) unsigned char lastch; // last ascii code present in font array (usually 127) bool auto_up; // autoupdate flag for LCD bool fontprop; }; #endif