/
graph_library.c
562 lines (551 loc) · 16.8 KB
/
graph_library.c
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// graph-library.c
// グラフィックビデオ出力用ライブラリ by K.Tanaka
#include "spi_composite.h"
const unsigned char __attribute__((__weak__ , aligned (4))) FontData[256*8]={
//フォントデータ
//キャラクタコード順に8バイトずつ、上位ビットが左
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x08,0x0C,0xFE,0xFE,0x0C,0x08,0x00,
0x00,0x20,0x60,0xFE,0xFE,0x60,0x20,0x00,
0x18,0x3C,0x7E,0x18,0x18,0x18,0x18,0x00,
0x00,0x18,0x18,0x18,0x18,0x7E,0x3C,0x18,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x30,0x30,0x30,0x30,0x00,0x00,0x30,0x00,
0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00,
0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00,
0x18,0x7E,0xD8,0x7E,0x1A,0xFE,0x18,0x00,
0xE0,0xE6,0x0C,0x18,0x30,0x6E,0xCE,0x00,
0x78,0xCC,0xD8,0x70,0xDE,0xCC,0x76,0x00,
0x0C,0x18,0x30,0x00,0x00,0x00,0x00,0x00,
0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00,
0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00,
0xD6,0x7C,0x38,0xFE,0x38,0x7C,0xD6,0x00,
0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x60,
0x00,0x00,0x00,0xFE,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x38,0x38,0x00,
0x00,0x06,0x0C,0x18,0x30,0x60,0xC0,0x00,
0x7C,0xC6,0xC6,0xC6,0xC6,0xC6,0x7C,0x00,
0x18,0x38,0x78,0x18,0x18,0x18,0x7E,0x00,
0x7C,0xC6,0x06,0x1C,0x70,0xC0,0xFE,0x00,
0x7C,0xC6,0x06,0x3C,0x06,0xC6,0x7C,0x00,
0x0C,0x1C,0x3C,0x6C,0xFE,0x0C,0x0C,0x00,
0xFE,0xC0,0xF8,0x0C,0x06,0xCC,0x78,0x00,
0x3C,0x60,0xC0,0xFC,0xC6,0xC6,0x7C,0x00,
0xFE,0xC6,0x0C,0x18,0x30,0x30,0x30,0x00,
0x7C,0xC6,0xC6,0x7C,0xC6,0xC6,0x7C,0x00,
0x7C,0xC6,0xC6,0x7E,0x06,0x0C,0x78,0x00,
0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x00,
0x00,0x30,0x00,0x00,0x00,0x30,0x30,0x60,
0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00,
0x00,0x00,0xFE,0x00,0xFE,0x00,0x00,0x00,
0x60,0x30,0x18,0x0C,0x18,0x30,0x60,0x00,
0x7C,0xC6,0x06,0x1C,0x30,0x00,0x30,0x00,
0x3C,0x66,0xDE,0xF6,0xDC,0x60,0x3E,0x00,
0x38,0x6C,0xC6,0xFE,0xC6,0xC6,0xC6,0x00,
0xFC,0x66,0x66,0x7C,0x66,0x66,0xFC,0x00,
0x3C,0x66,0xC0,0xC0,0xC0,0x66,0x3C,0x00,
0xF8,0x6C,0x66,0x66,0x66,0x6C,0xF8,0x00,
0xFE,0xC0,0xC0,0xF8,0xC0,0xC0,0xFE,0x00,
0xFE,0xC0,0xC0,0xF8,0xC0,0xC0,0xC0,0x00,
0x3C,0x66,0xC0,0xCE,0xC6,0x66,0x3C,0x00,
0xC6,0xC6,0xC6,0xFE,0xC6,0xC6,0xC6,0x00,
0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00,
0x1E,0x0C,0x0C,0x0C,0x0C,0xCC,0x78,0x00,
0xC6,0xCC,0xD8,0xF0,0xD8,0xCC,0xC6,0x00,
0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xFE,0x00,
0xC6,0xEE,0xFE,0xD6,0xC6,0xC6,0xC6,0x00,
0xC6,0xE6,0xF6,0xDE,0xCE,0xC6,0xC6,0x00,
0x38,0x6C,0xC6,0xC6,0xC6,0x6C,0x38,0x00,
0xFC,0xC6,0xC6,0xFC,0xC0,0xC0,0xC0,0x00,
0x38,0x6C,0xC6,0xC6,0xDE,0x6C,0x3E,0x00,
0xFC,0xC6,0xC6,0xFC,0xD8,0xCC,0xC6,0x00,
0x7C,0xC6,0xC0,0x7C,0x06,0xC6,0x7C,0x00,
0x7E,0x18,0x18,0x18,0x18,0x18,0x18,0x00,
0xC6,0xC6,0xC6,0xC6,0xC6,0xC6,0x7C,0x00,
0xC6,0xC6,0xC6,0x6C,0x6C,0x38,0x38,0x00,
0xC6,0xC6,0xC6,0xD6,0xFE,0xEE,0xC6,0x00,
0xC6,0xC6,0x6C,0x38,0x6C,0xC6,0xC6,0x00,
0xCC,0xCC,0xCC,0x78,0x30,0x30,0x30,0x00,
0xFE,0x06,0x0C,0x38,0x60,0xC0,0xFE,0x00,
0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00,
0xCC,0xCC,0x78,0xFC,0x30,0xFC,0x30,0x00,
0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00,
0x30,0x78,0xCC,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x00,
0x30,0x18,0x0C,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x7C,0x0C,0x7C,0xCC,0x7E,0x00,
0xC0,0xC0,0xFC,0xE6,0xC6,0xE6,0xFC,0x00,
0x00,0x00,0x7C,0xC6,0xC0,0xC6,0x7C,0x00,
0x06,0x06,0x7E,0xCE,0xC6,0xCE,0x7E,0x00,
0x00,0x00,0x7C,0xC6,0xFE,0xC0,0x7C,0x00,
0x1C,0x36,0x30,0xFC,0x30,0x30,0x30,0x00,
0x00,0x00,0x7E,0xCE,0xCE,0x7E,0x06,0x7C,
0xC0,0xC0,0xFC,0xE6,0xC6,0xC6,0xC6,0x00,
0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00,
0x0C,0x00,0x1C,0x0C,0x0C,0x0C,0xCC,0x78,
0xC0,0xC0,0xCC,0xD8,0xF0,0xF8,0xCC,0x00,
0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00,
0x00,0x00,0xFC,0xB6,0xB6,0xB6,0xB6,0x00,
0x00,0x00,0xFC,0xE6,0xC6,0xC6,0xC6,0x00,
0x00,0x00,0x7C,0xC6,0xC6,0xC6,0x7C,0x00,
0x00,0x00,0xFC,0xE6,0xE6,0xFC,0xC0,0xC0,
0x00,0x00,0x7E,0xCE,0xCE,0x7E,0x06,0x06,
0x00,0x00,0xDC,0xE6,0xC0,0xC0,0xC0,0x00,
0x00,0x00,0x7E,0xC0,0x7C,0x06,0xFC,0x00,
0x30,0x30,0xFC,0x30,0x30,0x36,0x1C,0x00,
0x00,0x00,0xC6,0xC6,0xC6,0xCE,0x76,0x00,
0x00,0x00,0xC6,0xC6,0xC6,0x6C,0x38,0x00,
0x00,0x00,0x86,0xB6,0xB6,0xB6,0xFC,0x00,
0x00,0x00,0xC6,0x6C,0x38,0x6C,0xC6,0x00,
0x00,0x00,0xC6,0xC6,0xCE,0x7E,0x06,0x7C,
0x00,0x00,0xFE,0x0C,0x38,0x60,0xFE,0x00,
0x3C,0x60,0x60,0xC0,0x60,0x60,0x3C,0x00,
0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x00,
0xF0,0x18,0x18,0x0C,0x18,0x18,0xF0,0x00,
0x60,0xB6,0x1C,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,
0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,
0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,
0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,
0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,
0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,
0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,
0xF0,0xF0,0xF0,0xF0,0xF0,0xF0,0xF0,0xF0,
0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,
0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,
0x18,0x18,0x18,0x18,0xFF,0x18,0x18,0x18,
0x18,0x18,0x18,0x18,0xFF,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0x18,0x18,0x18,
0x18,0x18,0x18,0x18,0xF8,0x18,0x18,0x18,
0x18,0x18,0x18,0x18,0x1F,0x18,0x18,0x18,
0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,
0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,
0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,
0x00,0x00,0x00,0x00,0x1F,0x18,0x18,0x18,
0x00,0x00,0x00,0x00,0xF8,0x18,0x18,0x18,
0x18,0x18,0x18,0x18,0x1F,0x00,0x00,0x00,
0x18,0x18,0x18,0x18,0xF8,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x07,0x0C,0x18,0x18,
0x00,0x00,0x00,0x00,0xE0,0x30,0x18,0x18,
0x18,0x18,0x18,0x0C,0x07,0x00,0x00,0x00,
0x18,0x18,0x18,0x30,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x78,0x68,0x78,0x00,
0x78,0x60,0x60,0x60,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x18,0x18,0x18,0x78,0x00,
0x00,0x00,0x00,0x00,0x60,0x30,0x18,0x00,
0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,
0xFE,0x06,0x06,0xFE,0x06,0x0C,0x78,0x00,
0x00,0x00,0xFC,0x0C,0x38,0x30,0x60,0x00,
0x00,0x00,0x0C,0x18,0x38,0x78,0x18,0x00,
0x00,0x00,0x30,0xFC,0xCC,0x0C,0x38,0x00,
0x00,0x00,0x00,0xFC,0x30,0x30,0xFC,0x00,
0x00,0x00,0x18,0xFC,0x38,0x78,0xD8,0x00,
0x00,0x00,0x60,0xFC,0x6C,0x68,0x60,0x00,
0x00,0x00,0x00,0x78,0x18,0x18,0xFC,0x00,
0x00,0x00,0x7C,0x0C,0x7C,0x0C,0x7C,0x00,
0x00,0x00,0x00,0xAC,0xAC,0x0C,0x38,0x00,
0x00,0x00,0x00,0xFE,0x00,0x00,0x00,0x00,
0xFE,0x06,0x06,0x34,0x38,0x30,0x60,0x00,
0x06,0x0C,0x18,0x38,0x78,0xD8,0x18,0x00,
0x18,0xFE,0xC6,0xC6,0x06,0x0C,0x38,0x00,
0x00,0x7E,0x18,0x18,0x18,0x18,0x7E,0x00,
0x18,0xFE,0x18,0x38,0x78,0xD8,0x18,0x00,
0x30,0xFE,0x36,0x36,0x36,0x36,0x6C,0x00,
0x18,0x7E,0x18,0x7E,0x18,0x18,0x18,0x00,
0x3E,0x66,0xC6,0x0C,0x18,0x30,0xE0,0x00,
0x60,0x7E,0xD8,0x18,0x18,0x18,0x30,0x00,
0x00,0xFE,0x06,0x06,0x06,0x06,0xFE,0x00,
0x6C,0xFE,0x6C,0x0C,0x0C,0x18,0x30,0x00,
0x00,0xF0,0x00,0xF6,0x06,0x0C,0xF8,0x00,
0xFE,0x06,0x0C,0x18,0x38,0x6C,0xC6,0x00,
0x60,0xFE,0x66,0x6C,0x60,0x60,0x3E,0x00,
0xC6,0xC6,0x66,0x06,0x0C,0x18,0xF0,0x00,
0x3E,0x66,0xE6,0x3C,0x18,0x30,0xE0,0x00,
0x0C,0x78,0x18,0xFE,0x18,0x18,0xF0,0x00,
0x00,0xD6,0xD6,0xD6,0x0C,0x18,0xF0,0x00,
0x7C,0x00,0xFE,0x18,0x18,0x30,0x60,0x00,
0x30,0x30,0x38,0x3C,0x36,0x30,0x30,0x00,
0x18,0x18,0xFE,0x18,0x18,0x30,0x60,0x00,
0x00,0x7C,0x00,0x00,0x00,0x00,0xFE,0x00,
0x00,0x7E,0x06,0x6C,0x18,0x36,0x60,0x00,
0x18,0x7E,0x0C,0x18,0x3C,0x7E,0x18,0x00,
0x06,0x06,0x06,0x0C,0x18,0x30,0x60,0x00,
0x30,0x18,0x0C,0xC6,0xC6,0xC6,0xC6,0x00,
0xC0,0xC0,0xFE,0xC0,0xC0,0xC0,0x7E,0x00,
0x00,0xFE,0x06,0x06,0x0C,0x18,0x70,0x00,
0x00,0x30,0x78,0xCC,0x06,0x06,0x00,0x00,
0x18,0x18,0xFE,0x18,0xDB,0xDB,0x18,0x00,
0xFE,0x06,0x06,0x6C,0x38,0x30,0x18,0x00,
0x00,0x3C,0x00,0x3C,0x00,0x7C,0x06,0x00,
0x0C,0x18,0x30,0x60,0xCC,0xFC,0x06,0x00,
0x02,0x36,0x3C,0x18,0x3C,0x6C,0xC0,0x00,
0x00,0xFE,0x30,0xFE,0x30,0x30,0x3E,0x00,
0x30,0x30,0xFE,0x36,0x3C,0x30,0x30,0x00,
0x00,0x78,0x18,0x18,0x18,0x18,0xFE,0x00,
0xFE,0x06,0x06,0xFE,0x06,0x06,0xFE,0x00,
0x7C,0x00,0xFE,0x06,0x0C,0x18,0x30,0x00,
0xC6,0xC6,0xC6,0x06,0x06,0x0C,0x38,0x00,
0x6C,0x6C,0x6C,0x6E,0x6E,0x6C,0xC8,0x00,
0x60,0x60,0x60,0x66,0x6C,0x78,0x70,0x00,
0x00,0xFE,0xC6,0xC6,0xC6,0xC6,0xFE,0x00,
0x00,0xFE,0xC6,0xC6,0x06,0x0C,0x38,0x00,
0x00,0xF0,0x06,0x06,0x0C,0x18,0xF0,0x00,
0x18,0xCC,0x60,0x00,0x00,0x00,0x00,0x00,
0x70,0xD8,0x70,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0xFF,0x00,0x00,0xFF,0x00,0x00,
0x18,0x18,0x1F,0x18,0x18,0x1F,0x18,0x18,
0x18,0x18,0xFF,0x18,0x18,0xFF,0x18,0x18,
0x18,0x18,0xF8,0x18,0x18,0xF8,0x18,0x18,
0x01,0x03,0x07,0x0F,0x1F,0x3F,0x7F,0xFF,
0x80,0xC0,0xE0,0xF0,0xF8,0xFC,0xFE,0xFF,
0xFF,0x7F,0x3F,0x1F,0x0F,0x07,0x03,0x01,
0xFF,0xFE,0xFC,0xF8,0xF0,0xE0,0xC0,0x80,
0x10,0x38,0x7C,0xFE,0xFE,0x38,0x7C,0x00,
0x6C,0xFE,0xFE,0xFE,0x7C,0x38,0x10,0x00,
0x10,0x38,0x7C,0xFE,0x7C,0x38,0x10,0x00,
0x38,0x38,0xFE,0xFE,0xD6,0x10,0x7C,0x00,
0x00,0x3C,0x7E,0x7E,0x7E,0x7E,0x3C,0x00,
0x00,0x7C,0xC6,0xC6,0xC6,0xC6,0x7C,0x00,
0x03,0x06,0x0C,0x18,0x30,0x60,0xC0,0x80,
0x80,0xC0,0x60,0x30,0x18,0x0C,0x06,0x03,
0x83,0xC6,0x6C,0x38,0x38,0x6C,0xC6,0x83,
0xFE,0xB6,0xB6,0xFE,0x86,0x86,0x86,0x00,
0xC0,0xFE,0xD8,0x7E,0x58,0xFE,0x18,0x00,
0x7E,0x66,0x7E,0x66,0x7E,0x66,0xC6,0x00,
0xFE,0xC6,0xC6,0xFE,0xC6,0xC6,0xFE,0x00,
0x06,0xEF,0xA6,0xFF,0xA2,0xFF,0x0A,0x06,
0x00,0x38,0x6C,0xC6,0x7C,0x34,0x6C,0x00,
0xFC,0x6C,0xFE,0x6E,0xF6,0xEC,0x6C,0x78,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
void g_pset(int x,int y,unsigned int c)
// (x,y)の位置にカラーcで点を描画
{
if(x<0 || x>=X_RES) return;
if(y<0 || y>=Y_RES) return;
*(VRAM+y*X_RES+x)=(unsigned short)c;
}
void g_putbmpmn(int x,int y,char m,char n,const unsigned short bmp[])
// 横m*縦nドットのキャラクターを座標x,yに表示
// unsigned char bmp[m*n]配列に、単純にカラー番号を並べる
// カラー番号が0の部分は透明色として扱う
{
int i,j;
unsigned short *vp;
const unsigned short *p;
if(x<=-m || x>X_RES || y<=-n || y>=Y_RES) return; //画面外
if(y<0){ //画面上部に切れる場合
i=0;
p=bmp-y*m;
}
else{
i=y;
p=bmp;
}
for(;i<y+n;i++){
if(i>=Y_RES) return; //画面下部に切れる場合
if(x<0){ //画面左に切れる場合は残る部分のみ描画
j=0;
p+=-x;
vp=VRAM+i*X_RES;
}
else{
j=x;
vp=VRAM+i*X_RES+x;
}
for(;j<x+m;j++){
if(j>=X_RES){ //画面右に切れる場合
p+=x+m-j;
break;
}
if(*p!=0){ //カラー番号が0の場合、透明として処理
*vp=*p;
}
p++;
vp++;
}
}
}
void g_clrbmpmn(int x,int y,char m,char n)
// 縦m*横nドットのキャラクター消去
// カラー0で塗りつぶし
{
int i,j;
unsigned short *vp;
if(x<=-m || x>=X_RES || y<=-n || y>=Y_RES) return; //画面外
if(y<0){ //画面上部に切れる場合
i=0;
}
else{
i=y;
}
for(;i<y+n;i++){
if(i>=Y_RES) return; //画面下部に切れる場合
if(x<0){ //画面左に切れる場合は残る部分のみ描画
j=0;
vp=VRAM+i*X_RES;
}
else{
j=x;
vp=VRAM+i*X_RES+x;
}
for(;j<x+m;j++){
if(j>=X_RES){ //画面右に切れる場合
break;
}
*vp++=0;
}
}
}
void g_gline(int x1,int y1,int x2,int y2,unsigned int c)
// (x1,y1)-(x2,y2)にカラーcで線分を描画
{
int sx,sy,dx,dy,i;
int e;
if(x2>x1){
dx=x2-x1;
sx=1;
}
else{
dx=x1-x2;
sx=-1;
}
if(y2>y1){
dy=y2-y1;
sy=1;
}
else{
dy=y1-y2;
sy=-1;
}
if(dx>=dy){
e=-dx;
for(i=0;i<=dx;i++){
g_pset(x1,y1,c);
x1+=sx;
e+=dy*2;
if(e>=0){
y1+=sy;
e-=dx*2;
}
}
}
else{
e=-dy;
for(i=0;i<=dy;i++){
g_pset(x1,y1,c);
y1+=sy;
e+=dx*2;
if(e>=0){
x1+=sx;
e-=dy*2;
}
}
}
}
void g_circle(int x0,int y0,unsigned int r,unsigned int c)
// (x0,y0)を中心に、半径r、カラーcの円を描画
{
int x,y,f;
x=r;
y=0;
f=-2*r+3;
while(x>=y){
g_pset(x0-x,y0-y,c);
g_pset(x0-x,y0+y,c);
g_pset(x0+x,y0-y,c);
g_pset(x0+x,y0+y,c);
g_pset(x0-y,y0-x,c);
g_pset(x0-y,y0+x,c);
g_pset(x0+y,y0-x,c);
g_pset(x0+y,y0+x,c);
if(f>=0){
x--;
f-=x*4;
}
y++;
f+=y*4+2;
}
}
void g_hline(int x1,int x2,int y,unsigned int c)
// (x1,y)-(x2,y)の水平ラインをカラーcで高速描画
{
int temp;
unsigned int d,*ad;
if(y<0 || y>=Y_RES) return;
if(x1>x2){
temp=x1;
x1=x2;
x2=temp;
}
if(x2<0 || x1>=X_RES) return;
if(x1<0) x1=0;
if(x2>=X_RES) x2=X_RES-1;
if(x1&1){
g_pset(x1++,y,c);
if(x1>x2) return;
}
d=c|(c<<16);
ad=(unsigned int *)(VRAM+y*X_RES+x1);
while(x1+1<=x2){
*ad++=d;
x1+=2;
}
while(x1<=x2) g_pset(x1++,y,c);
}
void g_boxfill(int x1,int y1,int x2,int y2,unsigned int c)
// (x1,y1),(x2,y2)を対角線とするカラーcで塗られた長方形を描画
{
int temp;
if(x1>x2){
temp=x1;
x1=x2;
x2=temp;
}
if(x2<0 || x1>=X_RES) return;
if(y1>y2){
temp=y1;
y1=y2;
y2=temp;
}
if(y2<0 || y1>=Y_RES) return;
if(y1<0) y1=0;
if(y2>=Y_RES) y2=Y_RES-1;
while(y1<=y2){
g_hline(x1,x2,y1++,c);
}
}
void g_circlefill(int x0,int y0,unsigned int r,unsigned int c)
// (x0,y0)を中心に、半径r、カラーcで塗られた円を描画
{
int x,y,f;
x=r;
y=0;
f=-2*r+3;
while(x>=y){
g_hline(x0-x,x0+x,y0-y,c);
g_hline(x0-x,x0+x,y0+y,c);
g_hline(x0-y,x0+y,y0-x,c);
g_hline(x0-y,x0+y,y0+x,c);
if(f>=0){
x--;
f-=x*4;
}
y++;
f+=y*4+2;
}
}
void g_putfont(int x,int y,unsigned int c,int bc,unsigned char n)
//8*8ドットのアルファベットフォント表示
//座標（x,y)、カラー番号c
//bc:バックグランドカラー、負数の場合無視
//n:文字番号
{
int i,j;
unsigned char d;
const unsigned char *p;
p=FontData+n*8;
for(i=0;i<8;i++){
d=*p++;
for(j=0;j<8;j++){
if(d&0x80) g_pset(x+j,y+i,c);
else if(bc>=0) g_pset(x+j,y+i,bc);
d<<=1;
}
}
}
void g_printstr(int x,int y,unsigned int c,int bc,unsigned char *s){
//座標(x,y)からカラー番号cで文字列sを表示、bc:バックグランドカラー
while(*s){
g_putfont(x,y,c,bc,*s++);
x+=8;
}
}
void g_printnum(int x,int y,unsigned char c,int bc,unsigned int n){
//座標(x,y)にカラー番号cで数値nを表示、bc:バックグランドカラー
unsigned int d,e;
d=10;
e=0;
while(n>=d){
e++;
if(e==9) break;
d*=10;
}
x+=e*8;
do{
g_putfont(x,y,c,bc,'0'+n%10);
n/=10;
x-=8;
}while(n!=0);
}
void g_printnum2(int x,int y,unsigned char c,int bc,unsigned int n,unsigned char e){
//座標(x,y)にカラー番号cで数値nを表示、bc:バックグランドカラー、e桁で表示
if(e==0) return;
x+=(e-1)*8;
do{
g_putfont(x,y,c,bc,'0'+n%10);
e--;
n/=10;
x-=8;
}while(e!=0 && n!=0);
while(e!=0){
g_putfont(x,y,c,bc,' ');
x-=8;
e--;
}
}
unsigned int g_color(int x,int y){
//座標(x,y)のVRAM上の現在のパレット番号を返す、画面外は0を返す
if(x<0 || x>=X_RES || y<0 || y>=Y_RES) return 0;
return *(VRAM+y*Y_RES+x);
}
void g_clearscreen(void)
{
unsigned int *vp;
int i;
vp=(unsigned int *)VRAM;
for(i=0;i<X_RES*Y_RES/2;i++) *vp++=0;
}