178 lines
5.7 KiB
C++
178 lines
5.7 KiB
C++
/*
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Copyright (c) 2010 Myles Metzer
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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This library provides a simple method for outputting data to a tv
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from a frame buffer stored in sram. This implementation is done
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completely by interrupt and will return give as much cpu time to the
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application as possible.
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*/
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#ifndef TVOUT_H
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#define TVOUT_H
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#include <stdint.h>
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#include <avr/io.h>
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#include <avr/pgmspace.h>
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#include <avr/interrupt.h>
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#include <stdlib.h>
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#include "video_gen.h"
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#include "spec/hardware_setup.h"
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#include "spec/video_properties.h"
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// macros for readability when selecting mode.
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#define PAL 1
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#define NTSC 0
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#define _PAL 1
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#define _NTSC 0
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#define WHITE 1
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#define BLACK 0
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#define INVERT 2
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#define UP 0
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#define DOWN 1
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#define LEFT 2
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#define RIGHT 3
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#define DEC 10
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#define HEX 16
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#define OCT 8
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#define BIN 2
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#define BYTE 0
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// Macros for clearer usage
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#define clear_screen() fill(0)
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#define invert(color) fill(2)
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/*
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TVout.cpp contains a brief expenation of each function.
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*/
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class TVout {
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public:
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uint8_t * screen;
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char begin(uint8_t mode);
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char begin(uint8_t mode, uint8_t x, uint8_t y);
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void end();
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//accessor functions
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unsigned char hres();
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unsigned char vres();
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char char_line();
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//flow control functions
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void delay(unsigned int x);
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void delay_frame(unsigned int x);
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unsigned long millis();
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//override setup functions
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void force_vscale(char sfactor);
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void force_outstart(uint8_t time);
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void force_linestart(uint8_t line);
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//basic rendering functions
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void set_pixel(uint8_t x, uint8_t y, char c);
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unsigned char get_pixel(uint8_t x, uint8_t y);
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void fill(uint8_t color);
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void shift(uint8_t distance, uint8_t direction);
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void draw_line(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, char c);
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void draw_row(uint8_t line, uint16_t x0, uint16_t x1, uint8_t c);
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void draw_column(uint8_t row, uint16_t y0, uint16_t y1, uint8_t c);
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void draw_rect(uint8_t x0, uint8_t y0, uint8_t w, uint8_t h, char c, char fc = -1);
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void draw_circle(uint8_t x0, uint8_t y0, uint8_t radius, char c, char fc = -1);
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void bitmap(uint8_t x, uint8_t y, const unsigned char * bmp, uint16_t i = 0, uint8_t width = 0, uint8_t lines = 0);
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//hook setup functions
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void set_vbi_hook(void (*func)());
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void set_hbi_hook(void (*func)());
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//tone functions
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void tone(unsigned int frequency, unsigned long duration_ms);
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void tone(unsigned int frequency);
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void noTone();
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//The following function definitions can be found in TVoutPrint.cpp
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//printing functions
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void print_char(uint8_t x, uint8_t y, unsigned char c);
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void set_cursor(uint8_t, uint8_t);
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void select_font(const unsigned char * f);
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void write(uint8_t);
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void write(const char *str);
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void write(const uint8_t *buffer, uint8_t size);
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void print(const char[]);
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void print(char, int = BYTE);
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void print(unsigned char, int = BYTE);
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void print(int, int = DEC);
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void print(unsigned int, int = DEC);
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void print(long, int = DEC);
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void print(unsigned long, int = DEC);
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void print(double, int = 2);
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void print(uint8_t, uint8_t, const char[]);
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void print(uint8_t, uint8_t, char, int = BYTE);
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void print(uint8_t, uint8_t, unsigned char, int = BYTE);
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void print(uint8_t, uint8_t, int, int = DEC);
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void print(uint8_t, uint8_t, unsigned int, int = DEC);
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void print(uint8_t, uint8_t, long, int = DEC);
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void print(uint8_t, uint8_t, unsigned long, int = DEC);
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void print(uint8_t, uint8_t, double, int = 2);
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void println(uint8_t, uint8_t, const char[]);
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void println(uint8_t, uint8_t, char, int = BYTE);
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void println(uint8_t, uint8_t, unsigned char, int = BYTE);
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void println(uint8_t, uint8_t, int, int = DEC);
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void println(uint8_t, uint8_t, unsigned int, int = DEC);
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void println(uint8_t, uint8_t, long, int = DEC);
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void println(uint8_t, uint8_t, unsigned long, int = DEC);
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void println(uint8_t, uint8_t, double, int = 2);
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void println(uint8_t, uint8_t);
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void println(const char[]);
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void println(char, int = BYTE);
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void println(unsigned char, int = BYTE);
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void println(int, int = DEC);
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void println(unsigned int, int = DEC);
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void println(long, int = DEC);
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void println(unsigned long, int = DEC);
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void println(double, int = 2);
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void println(void);
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void printPGM(const char[]);
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void printPGM(uint8_t, uint8_t, const char[]);
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private:
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uint8_t cursor_x,cursor_y;
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const unsigned char * font;
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void inc_txtline();
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void printNumber(unsigned long, uint8_t);
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void printFloat(double, uint8_t);
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};
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static void inline sp(unsigned char x, unsigned char y, char c);
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#endif
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