Basically i glued Peter Drescher and Simon Ford libs in a GraphicsDisplay class, then derived TFT or LCD class (which inherits Protocols class), then the most derived ones (Inits), which are per-display and are the only part needed to be adapted to diff hw.
Diff: Display/LCD.h
- Revision:
- 0:75ec1b3cde17
- Child:
- 1:ff019d22b275
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Display/LCD.h Thu Feb 12 22:22:47 2015 +0000 @@ -0,0 +1,208 @@ + +#ifndef MBED_LCD_H +#define MBED_LCD_H + +#include "GraphicsDisplay.h" +#include "PAR8.h" +#include "SPI8.h" +#include "Protocols.h" + +#define Black 1 +#define White 0 + +/** Draw mode + * NORMAl + * XOR set pixel by xor the screen + */ +enum {NORMAL,XOR}; + +/** Mirror mode */ +enum mirror_t {X,Y,XY,NONE}; + + +/** A common base class for monochrome Display +*/ +class LCD : public GraphicsDisplay +{ + +public: + + /** Create a monochrome LCD Parallel interface + * @param name The name used by the parent class to access the interface + */ + LCD(proto_t displayproto,PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name); + + /** Create a monochrome LCD SPI interface + * @param name The name used by the parent class to access the interface + */ + LCD(proto_t displayproto,PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name); + + /** Destructor + * will free framebuffer + */ + virtual ~LCD(); + + + +/////// functions that come for free, but can be overwritten/////////////////////////////////////////////////// +/////// ----------------------------------------------------/////////////////////////////////////////////////// + + /** Draw a pixel in the specified color. + * @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); + + + + + /** 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. + */ + virtual void window(int x, int y, int w, int h); + + /** Push a single pixel into the window and increment position. + * You must first call window() then push pixels in loop. + * @param color is the pixel color. + */ + virtual void window_pushpixel(unsigned short color); + + /** Framebuffer is used, it needs to be sent to LCD from time to time + */ + virtual void copy_to_lcd(); + + /** set the contrast of the screen + * + * @param o contrast 0-63 + * @note may be overrided in case of not standard command + */ + virtual void set_contrast(int o); + + /** read the contrast level + * + */ + int get_contrast(void); + + /** invert the screen + * + * @param o = 0 normal, 1 invert + */ + void invert(unsigned char o); + + /** clear the entire screen + * The inherited one sets windomax then fill with background color + * We override it to speedup + */ + virtual void cls(); + + /** 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); + + + + /** Set the orientation of the screen + * x,y: 0,0 is always top left + * + * @param o direction to use the screen (0-3) + * 0 = -90° + * 1 = default 0° + * 2 = +90° + * 3 = +180° + * + */ + void set_orientation(int o); + + /** Set ChipSelect high or low + * @param enable 0/1 + */ + virtual void BusEnable(bool enable); + + +protected: + + /** set mirror mode + * @note may be overridden by specific display init class in case of not standard cmds or inverted wiring + * @param mode NONE, X, Y, XY + */ + virtual void mirrorXY(mirror_t mode); + +////// functions needed by parent class /////////////////////////////////////// +////// -------------------------------- /////////////////////////////////////// + + /** Send command byte to display + * @param cmd is the command + */ + void wr_cmd(unsigned char cmd); + + /** Send data byte to display + * @param data8 is the byte + */ + void wr_data8(unsigned char data8); + + /** Send same data byte to display controller multiple times + * + * @param data8: byte to send + * @param count: how many + * + */ + virtual void wr_data8(unsigned char data8, unsigned int count); + + /** Send array of data bytes to display controller + * + * @param data8: unsigned char data array + * @param lenght: lenght of array + * + */ + virtual void wr_data8buf(unsigned char* data8, unsigned int lenght); + + /** HW reset sequence (without display init commands) + */ + void hw_reset(); + + int draw_mode; + int contrast; + +private: + + + unsigned char *buffer; + const int LCDSIZE_X; + const int LCDSIZE_Y; + const int LCDPAGES; + const int IC_X_SEGS; + const int IC_Y_COMS; + const int IC_PAGES; + + int page_offset; + int col_offset; + // pixel location + int cur_x; + int cur_y; + // window location + int win_x1; + int win_x2; + int win_y1; + int win_y2; + int orientation; + // bool portrait; +}; + +#endif \ No newline at end of file