kopia lustrzana
https://github.com/Dejvino/lilybook.git
synced 2024-09-28 18:03:37 +00:00
582 wiersze
18 KiB
C
582 wiersze
18 KiB
C
/*
|
||
* High level EPD functions
|
||
* Author: LoBo 06/2017, https://github/loboris
|
||
*
|
||
*/
|
||
|
||
#ifndef _EPD_H_
|
||
#define _EPD_H_
|
||
|
||
#include <stdlib.h>
|
||
#include "EPDspi.h"
|
||
#ifdef __cplusplus
|
||
extern "C" {
|
||
#endif
|
||
|
||
typedef uint8_t color_t;
|
||
|
||
typedef struct {
|
||
uint16_t x1;
|
||
uint16_t y1;
|
||
uint16_t x2;
|
||
uint16_t y2;
|
||
} dispWin_t;
|
||
|
||
typedef struct {
|
||
uint8_t *font;
|
||
uint8_t x_size;
|
||
uint8_t y_size;
|
||
uint8_t offset;
|
||
uint16_t numchars;
|
||
uint16_t size;
|
||
uint8_t max_x_size;
|
||
uint8_t bitmap;
|
||
color_t color;
|
||
} Font_t;
|
||
|
||
|
||
|
||
//==========================================================================================
|
||
// ==== Global variables ===================================================================
|
||
//==========================================================================================
|
||
extern uint8_t orientation; // current screen orientation
|
||
extern uint16_t font_rotate; // current font font_rotate angle (0~395)
|
||
extern uint8_t font_transparent; // if not 0 draw fonts transparent
|
||
extern uint8_t font_forceFixed; // if not zero force drawing proportional fonts with fixed width
|
||
extern uint8_t font_buffered_char;
|
||
extern uint8_t font_line_space; // additional spacing between text lines; added to font height
|
||
extern uint8_t font_x_space; // additional spacing between characters in x axis
|
||
extern uint8_t text_wrap; // if not 0 wrap long text to the new line, else clip
|
||
extern color_t _fg; // current foreground color for fonts
|
||
extern color_t _bg; // current background for non transparent fonts
|
||
extern dispWin_t dispWin; // display clip window
|
||
extern float _angleOffset; // angle offset for arc, polygon and line by angle functions
|
||
|
||
extern Font_t cfont; // Current font structure
|
||
extern uint8_t image_debug;
|
||
|
||
extern int EPD_X; // X position of the next character after EPD_print() function
|
||
extern int EPD_Y; // Y position of the next character after EPD_print() function
|
||
// =========================================================================================
|
||
|
||
|
||
// Buffer is created during jpeg decode for sending data
|
||
// Total size of the buffer is 2 * (JPG_IMAGE_LINE_BUF_SIZE * 3)
|
||
// The size must be multiple of 256 bytes !!
|
||
#define JPG_IMAGE_LINE_BUF_SIZE 512
|
||
|
||
// --- Constants for ellipse function ---
|
||
#define EPD_ELLIPSE_UPPER_RIGHT 0x01
|
||
#define EPD_ELLIPSE_UPPER_LEFT 0x02
|
||
#define EPD_ELLIPSE_LOWER_LEFT 0x04
|
||
#define EPD_ELLIPSE_LOWER_RIGHT 0x08
|
||
|
||
// Constants for Arc function
|
||
// number representing the maximum angle (e.g. if 100, then if you pass in start=0 and end=50, you get a half circle)
|
||
// this can be changed with setArcParams function at runtime
|
||
#define DEFAULT_ARC_ANGLE_MAX 360
|
||
// rotational offset in degrees defining position of value 0 (-90 will put it at the top of circle)
|
||
// this can be changed with setAngleOffset function at runtime
|
||
#define DEFAULT_ANGLE_OFFSET -90
|
||
|
||
#define PI 3.14159265359
|
||
|
||
#define MIN_POLIGON_SIDES 3
|
||
#define MAX_POLIGON_SIDES 60
|
||
|
||
// === Color names constants ===
|
||
#define EPD_BLACK 15
|
||
#define EPD_WHITE 0
|
||
|
||
// === Color invert constants ===
|
||
#define INVERT_ON 1
|
||
#define INVERT_OFF 0
|
||
|
||
// === Screen orientation constants ===
|
||
#define LANDSCAPE_0 1
|
||
#define LANDSCAPE_180 2
|
||
|
||
// === Special coordinates constants ===
|
||
#define CENTER -9003
|
||
#define RIGHT -9004
|
||
#define BOTTOM -9004
|
||
|
||
#define LASTX 7000
|
||
#define LASTY 8000
|
||
|
||
// === Embedded fonts constants ===
|
||
#define DEFAULT_FONT 0
|
||
#define DEJAVU18_FONT 1
|
||
#define DEJAVU24_FONT 2
|
||
#define UBUNTU16_FONT 3
|
||
#define COMIC24_FONT 4
|
||
#define MINYA24_FONT 5
|
||
#define TOONEY32_FONT 6
|
||
#define SMALL_FONT 7
|
||
#define FONT_7SEG 8
|
||
#define USER_FONT 9 // font will be read from file
|
||
|
||
|
||
|
||
// ===== PUBLIC FUNCTIONS =========================================================================
|
||
|
||
/*
|
||
* Draw pixel at given x,y coordinates
|
||
*
|
||
* Params:
|
||
* x: horizontal position
|
||
* y: vertical position
|
||
* color: pixel color
|
||
*/
|
||
//------------------------------------------------------
|
||
void EPD_drawPixel(int16_t x, int16_t y, color_t color);
|
||
|
||
/*
|
||
* Read pixel color value from display GRAM at given x,y coordinates
|
||
*
|
||
* Params:
|
||
* x: horizontal position
|
||
* y: vertical position
|
||
*
|
||
* Returns:
|
||
* pixel color at x,y
|
||
*/
|
||
//------------------------------------------
|
||
color_t EPD_readPixel(int16_t x, int16_t y);
|
||
|
||
/*
|
||
* Draw vertical line at given x,y coordinates
|
||
*
|
||
* Params:
|
||
* x: horizontal start position
|
||
* y: vertical start position
|
||
* h: line height in pixels
|
||
* color: line color
|
||
*/
|
||
//---------------------------------------------------------------------
|
||
void EPD_drawFastVLine(int16_t x, int16_t y, int16_t h, color_t color);
|
||
|
||
/*
|
||
* Draw horizontal line at given x,y coordinates
|
||
*
|
||
* Params:
|
||
* x: horizontal start position
|
||
* y: vertical start position
|
||
* w: line width in pixels
|
||
* color: line color
|
||
*/
|
||
//---------------------------------------------------------------------
|
||
void EPD_drawFastHLine(int16_t x, int16_t y, int16_t w, color_t color);
|
||
|
||
/*
|
||
* Draw line on screen
|
||
*
|
||
* Params:
|
||
* x0: horizontal start position
|
||
* y0: vertical start position
|
||
* x1: horizontal end position
|
||
* y1: vertical end position
|
||
* color: line color
|
||
*/
|
||
//-------------------------------------------------------------------------------
|
||
void EPD_drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, color_t color);
|
||
|
||
|
||
/*
|
||
* Draw line on screen from (x,y) point at given angle
|
||
* Line drawing angle starts at lower right quadrant of the screen and is offseted by
|
||
* '_angleOffset' global variable (default: -90 degrees)
|
||
*
|
||
* Params:
|
||
* x: horizontal start position
|
||
* y: vertical start position
|
||
* start: start offset from (x,y)
|
||
* len: length of the line
|
||
* angle: line angle in degrees
|
||
* color: line color
|
||
*/
|
||
//-----------------------------------------------------------------------------------------------------------
|
||
void EPD_drawLineByAngle(uint16_t x, uint16_t y, uint16_t start, uint16_t len, uint16_t angle, color_t color);
|
||
|
||
/*
|
||
* Fill given rectangular screen region with color
|
||
*
|
||
* Params:
|
||
* x: horizontal rect start position
|
||
* y: vertical rect start position
|
||
* w: rectangle width
|
||
* h: rectangle height
|
||
* color: fill color
|
||
*/
|
||
//---------------------------------------------------------------------------
|
||
void EPD_fillRect(int16_t x, int16_t y, int16_t w, int16_t h, color_t color);
|
||
|
||
/*
|
||
* Draw rectangle on screen
|
||
*
|
||
* Params:
|
||
* x: horizontal rect start position
|
||
* y: vertical rect start position
|
||
* w: rectangle width
|
||
* h: rectangle height
|
||
* color: rect line color
|
||
*/
|
||
//------------------------------------------------------------------------------
|
||
void EPD_drawRect(uint16_t x1,uint16_t y1,uint16_t w,uint16_t h, color_t color);
|
||
|
||
/*
|
||
* Draw rectangle with rounded corners on screen
|
||
*
|
||
* Params:
|
||
* x: horizontal rect start position
|
||
* y: vertical rect start position
|
||
* w: rectangle width
|
||
* h: rectangle height
|
||
* r: corner radius
|
||
* color: rectangle color
|
||
*/
|
||
//----------------------------------------------------------------------------------------------
|
||
void EPD_drawRoundRect(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t r, color_t color);
|
||
|
||
/*
|
||
* Fill given rectangular screen region with rounded corners with color
|
||
*
|
||
* Params:
|
||
* x: horizontal rect start position
|
||
* y: vertical rect start position
|
||
* w: rectangle width
|
||
* h: rectangle height
|
||
* r: corner radius
|
||
* color: fill color
|
||
*/
|
||
//----------------------------------------------------------------------------------------------
|
||
void EPD_fillRoundRect(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t r, color_t color);
|
||
|
||
/*
|
||
* Fill the whole screen with color
|
||
*
|
||
* Params:
|
||
* color: fill color
|
||
*/
|
||
//--------------------------------
|
||
void EPD_fillScreen(color_t color);
|
||
|
||
/*
|
||
* Fill the current clip window with color
|
||
*
|
||
* Params:
|
||
* color: fill color
|
||
*/
|
||
//---------------------------------
|
||
void EPD_fillWindow(color_t color);
|
||
|
||
/*
|
||
* Draw triangle on screen
|
||
*
|
||
* Params:
|
||
* x0: first triangle point x position
|
||
* y0: first triangle point y position
|
||
* x0: second triangle point x position
|
||
* y0: second triangle point y position
|
||
* x0: third triangle point x position
|
||
* y0: third triangle point y position
|
||
* color: triangle color
|
||
*/
|
||
//-----------------------------------------------------------------------------------------------------------------
|
||
void EPD_drawTriangle(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, color_t color);
|
||
|
||
/*
|
||
* Fill triangular screen region with color
|
||
*
|
||
* Params:
|
||
* x0: first triangle point x position
|
||
* y0: first triangle point y position
|
||
* x0: second triangle point x position
|
||
* y0: second triangle point y position
|
||
* x0: third triangle point x position
|
||
* y0: third triangle point y position
|
||
* color: fill color
|
||
*/
|
||
//-----------------------------------------------------------------------------------------------------------------
|
||
void EPD_fillTriangle(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, color_t color);
|
||
|
||
/*
|
||
* Draw circle on screen
|
||
*
|
||
* Params:
|
||
* x: circle center x position
|
||
* y: circle center x position
|
||
* r: circle radius
|
||
* color: circle color
|
||
*/
|
||
//-------------------------------------------------------------------
|
||
void EPD_drawCircle(int16_t x, int16_t y, int radius, color_t color);
|
||
|
||
/*
|
||
* Fill circle on screen with color
|
||
*
|
||
* Params:
|
||
* x: circle center x position
|
||
* y: circle center x position
|
||
* r: circle radius
|
||
* color: circle fill color
|
||
*/
|
||
//-------------------------------------------------------------------
|
||
void EPD_fillCircle(int16_t x, int16_t y, int radius, color_t color);
|
||
|
||
/*
|
||
* Draw ellipse on screen
|
||
*
|
||
* Params:
|
||
* x0: ellipse center x position
|
||
* y0: ellipse center x position
|
||
* rx: ellipse horizontal radius
|
||
* ry: ellipse vertical radius
|
||
* option: drawing options, multiple options can be combined
|
||
1 (TFT_ELLIPSE_UPPER_RIGHT) draw upper right corner
|
||
2 (TFT_ELLIPSE_UPPER_LEFT) draw upper left corner
|
||
4 (TFT_ELLIPSE_LOWER_LEFT) draw lower left corner
|
||
8 (TFT_ELLIPSE_LOWER_RIGHT) draw lower right corner
|
||
to draw the whole ellipse use option value 15 (1 | 2 | 4 | 8)
|
||
*
|
||
* color: circle color
|
||
*/
|
||
//------------------------------------------------------------------------------------------------------
|
||
void EPD_drawEllipse(uint16_t x0, uint16_t y0, uint16_t rx, uint16_t ry, color_t color, uint8_t option);
|
||
|
||
/*
|
||
* Fill elliptical region on screen
|
||
*
|
||
* Params:
|
||
* x0: ellipse center x position
|
||
* y0: ellipse center x position
|
||
* rx: ellipse horizontal radius
|
||
* ry: ellipse vertical radius
|
||
* option: drawing options, multiple options can be combined
|
||
1 (TFT_ELLIPSE_UPPER_RIGHT) fill upper right corner
|
||
2 (TFT_ELLIPSE_UPPER_LEFT) fill upper left corner
|
||
4 (TFT_ELLIPSE_LOWER_LEFT) fill lower left corner
|
||
8 (TFT_ELLIPSE_LOWER_RIGHT) fill lower right corner
|
||
to fill the whole ellipse use option value 15 (1 | 2 | 4 | 8)
|
||
*
|
||
* color: fill color
|
||
*/
|
||
//------------------------------------------------------------------------------------------------------
|
||
void EPD_fillEllipse(uint16_t x0, uint16_t y0, uint16_t rx, uint16_t ry, color_t color, uint8_t option);
|
||
|
||
|
||
/*
|
||
* Draw circle arc on screen
|
||
* Arc drawing angle starts at lower right quadrant of the screen and is offseted by
|
||
* '_angleOffset' global variable (default: -90 degrees)
|
||
*
|
||
* Params:
|
||
* cx: arc center X position
|
||
* cy: arc center Y position
|
||
* th: thickness of the drawn arc
|
||
* ry: arc vertical radius
|
||
* start: arc start angle in degrees
|
||
* end: arc end angle in degrees
|
||
* color: arc outline color
|
||
* fillcolor: arc fill color
|
||
*/
|
||
//----------------------------------------------------------------------------------------------------------------------------
|
||
void EPD_drawArc(uint16_t cx, uint16_t cy, uint16_t r, uint16_t th, float start, float end, color_t color, color_t fillcolor);
|
||
|
||
|
||
/*
|
||
* Draw polygon on screen
|
||
*
|
||
* Params:
|
||
* cx: polygon center X position
|
||
* cy: arc center Y position
|
||
* sides: number of polygon sides; MAX_POLIGON_SIDES ~ MAX_POLIGON_SIDES (3 ~ 60)
|
||
* diameter: diameter of the circle inside which the polygon is drawn
|
||
* color: polygon outline color
|
||
* fill: polygon fill color; if same as color, polygon is not filled
|
||
* deg: polygon rotation angle; 0 ~ 360
|
||
* th: thickness of the polygon outline
|
||
*/
|
||
//--------------------------------------------------------------------------------------------------------------
|
||
void EPD_drawPolygon(int cx, int cy, int sides, int diameter, color_t color, color_t fill, int deg, uint8_t th);
|
||
|
||
|
||
//--------------------------------------------------------------------------------------
|
||
//void EPD_drawStar(int cx, int cy, int diameter, color_t color, bool fill, float factor);
|
||
|
||
|
||
/*
|
||
* Set the font used for writing the text to display.
|
||
*
|
||
* ------------------------------------------------------------------------------------
|
||
* For 7 segment font only characters 0,1,2,3,4,5,6,7,8,9, . , - , : , / are available.
|
||
* Character ‘/‘ draws the degree sign.
|
||
* ------------------------------------------------------------------------------------
|
||
*
|
||
* Params:
|
||
* font: font number; use defined font names
|
||
* font_file: pointer to font file name; NULL for embeded fonts
|
||
*/
|
||
//----------------------------------------------------
|
||
void EPD_setFont(uint8_t font, const char *font_file);
|
||
|
||
/*
|
||
* Returns current font height & width in pixels.
|
||
*
|
||
* Params:
|
||
* width: pointer to returned font width
|
||
* height: pointer to returned font height
|
||
*/
|
||
//-------------------------------------------
|
||
int EPD_getfontsize(int *width, int* height);
|
||
|
||
|
||
/*
|
||
* Returns current font height in pixels.
|
||
*
|
||
*/
|
||
//----------------------
|
||
int EPD_getfontheight();
|
||
|
||
/*
|
||
* Write text to display.
|
||
*
|
||
* Rotation of the displayed text depends on 'font_rotate' variable (0~360)
|
||
* if 'font_transparent' variable is set to 1, no background pixels will be printed
|
||
*
|
||
* If the text does not fit the screen width it will be clipped (if text_wrap=0),
|
||
* or continued on next line (if text_wrap=1)
|
||
*
|
||
* Two special characters are allowed in strings:
|
||
* ‘\r’ CR (0x0D), clears the display to EOL
|
||
* ‘\n’ LF (ox0A), continues to the new line, x=0
|
||
*
|
||
* Params:
|
||
* st: pointer to null terminated string to be printed
|
||
* x: horizontal position of the upper left point in pixels
|
||
* Special values can be entered:
|
||
* CENTER, centers the text
|
||
* RIGHT, right justifies the text
|
||
* LASTX, continues from last X position; offset can be used: LASTX+n
|
||
* y: vertical position of the upper left point in pixels
|
||
* Special values can be entered:
|
||
* CENTER, centers the text
|
||
* BOTTOM, bottom justifies the text
|
||
* LASTY, continues from last Y position; offset can be used: LASTY+n
|
||
*
|
||
*/
|
||
//-------------------------------------
|
||
void EPD_print(char *st, int x, int y);
|
||
|
||
/*
|
||
* Set atributes for 7 segment vector font
|
||
* == 7 segment font must be the current font to this function to have effect ==
|
||
*
|
||
* Params:
|
||
* l: 6~40; distance between bars in pixels
|
||
* w: 1~12, max l/2; bar width in pixels
|
||
* outline: draw font outline if set to 1
|
||
* color: font outline color, only used if outline=1
|
||
*
|
||
*/
|
||
//-------------------------------------------------------------------------
|
||
void set_7seg_font_atrib(uint8_t l, uint8_t w, int outline, color_t color);
|
||
|
||
/*
|
||
* Sets the clipping area coordinates.
|
||
* All writing to screen is clipped to that area.
|
||
* Starting x & y in all functions will be adjusted to the clipping area.
|
||
*
|
||
* Params:
|
||
* x1,y1: upper left point of the clipping area
|
||
* x2,y2: bottom right point of the clipping area
|
||
*
|
||
*/
|
||
//----------------------------------------------------------------------
|
||
void EPD_setclipwin(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
|
||
|
||
/*
|
||
* Resets the clipping area to full screen (0,0),(_wodth,_height)
|
||
*
|
||
*/
|
||
//----------------------
|
||
void EPD_resetclipwin();
|
||
|
||
/*
|
||
* Save current clipping area to temporary variable
|
||
*
|
||
*/
|
||
//---------------------
|
||
void EPD_saveClipWin();
|
||
|
||
/*
|
||
* Restore current clipping area from temporary variable
|
||
*
|
||
*/
|
||
//------------------------
|
||
void EPD_restoreClipWin();
|
||
|
||
/*
|
||
* returns the string width in pixels.
|
||
* Useful for positions strings on the screen.
|
||
*/
|
||
//--------------------------------
|
||
int EPD_getStringWidth(char* str);
|
||
|
||
|
||
/*
|
||
* Fills the rectangle occupied by string with current background color
|
||
*/
|
||
void EPD_clearStringRect(int x, int y, char *str);
|
||
|
||
/*
|
||
* Frames the rectangle occupied by string with current foreground color
|
||
*/
|
||
void EPD_frameStringRect(int x, int y, char *str);
|
||
|
||
/*
|
||
* Compile font c source file to .fnt file
|
||
* which can be used in EPD_setFont() function to select external font
|
||
* Created file have the same name as source file and extension .fnt
|
||
*
|
||
* Params:
|
||
* fontfile: pointer to c source font file name; must have .c extension
|
||
* dbg: if set to 1, prints debug information
|
||
*
|
||
* Returns:
|
||
* 0 on success
|
||
* err no on error
|
||
*
|
||
*/
|
||
//------------------------------------------------
|
||
int compile_font_file(char *fontfile, uint8_t dbg);
|
||
|
||
/*
|
||
* Get all font's characters to buffer
|
||
*/
|
||
void getFontCharacters(uint8_t *buf);
|
||
|
||
/*
|
||
* Decodes and displays JPG image. RGB colors are converted to 4-bit Gray scale
|
||
* Limits:
|
||
* Baseline only. Progressive and Lossless JPEG format are not supported.
|
||
* Image size: Up to 65520 x 65520 pixels
|
||
* Color space: YCbCr three components only. Gray scale image is not supported.
|
||
* Sampling factor: 4:4:4, 4:2:2 or 4:2:0.
|
||
*
|
||
* Params:
|
||
* x: image left position; constants CENTER & RIGHT can be used; negative value is accepted
|
||
* y: image top position; constants CENTER & BOTTOM can be used; negative value is accepted
|
||
* scale: image scale factor: 0~3; if scale>0, image is scaled by factor 1/(2^scale) (1/2, 1/4 or 1/8)
|
||
* fname: pointer to the name of the file from which the image will be read
|
||
* if set to NULL, image will be read from memory buffer pointed to by 'buf'
|
||
* buf: pointer to the memory buffer from which the image will be read; used if fname=NULL
|
||
* size: size of the memory buffer from which the image will be read; used if fname=NULL & buf!=NULL
|
||
*
|
||
*/
|
||
int EPD_jpg_image(int x, int y, uint8_t scale, char *fname, uint8_t *buf, int size);
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
#endif
|