webcpu/api.js

   1 function WebCPU_API(){
   2         this.mainWindowCanvas = null;
   3         this.mainWindowContext = null;
   4         this.mainWindowBufferCanvas = document.createElement('canvas');
   5         this.mainWindowBufferContext = this.mainWindowBufferCanvas.getContext("2d");
   6         //
   7         this.mainWindowBufferCanvas.width = 640;
   8         this.mainWindowBufferCanvas.height = 480;
   9         this.initCanvas(this.mainWindowBufferCanvas);
  10 }
  11 WebCPU_API.prototype = {
  12         executeAPI: function(env){
  13                 var r = env.registers.Integer;
  14                 var APIID = r[0x30];
  15                 switch(APIID){
  16                         case 0xff40:
  17                                 //openWin
  18                                 this.API_openWin(env, r[0x31], r[0x32])
  19                                 break;
  20                         case 0xff41:
  21                                 //openWin
  22                                 this.API_flushWin(env, r[0x31], r[0x32], r[0x33], r[0x34])
  23                                 break;
  24                         case 0xff44:
  25                                 //drawPoint
  26                                 this.API_drawPoint(env, r[0x31], r[0x32], r[0x33], r[0x34]);
  27                                 break;
  28                         case 0xff45:
  29                                 //drawLine
  30                                 this.API_drawLine(env, r[0x31], r[0x32], r[0x33], r[0x34], r[0x35], r[0x36]);
  31                                 break;
  32                         case 0xff46:
  33                                 //fillRect
  34                                 this.API_fillRect(env, r[0x31], r[0x32], r[0x33], r[0x34], r[0x35], r[0x36]);
  35                                 break;
  36                         case 0xff47:
  37                                 //fillOval
  38                                 this.API_fillOval(env, r[0x31], r[0x32], r[0x33], r[0x34], r[0x35], r[0x36]);
  39                                 break;
  40                         default:
  41                                 throw new WebCPU_Exception(0, ["Unknown API Number " + APIID.toString(16)]);
  42                 }
  43                 env.goToPointerRegister(0x30);
  44         },
  45         colorTable:[
  46                 0x000000,
  47                 0xff0000,
  48                 0x00ff00,
  49                 0xffff00,
  50                 0x0000ff,
  51                 0xff00ff,
  52                 0x00ffff,
  53                 0xffffff
  54         ],
  55         setMainWindowCanvasDOMObject: function(obj){
  56                 this.mainWindowCanvas = obj;
  57                 if(this.mainWindowCanvas){
  58                         this.mainWindowContext = this.mainWindowCanvas.getContext('2d')
  59                         this.initCanvas(this.mainWindowCanvas);
  60                 } else{
  61                         this.mainWindowContext = null;
  62                 }
  63         },
  64         initCanvas: function(c){
  65                 var d = c.getContext('2d');
  66                 d.fillStyle = "rgba(0,0,0,1)";
  67                 d.strokeStyle = "rgba(255, 255, 255, 1)";
  68                 d.lineWidth = 1;
  69                 //描画域は必ず黒で初期化されます。
  70                 d.fillRect(0, 0, c.width, c.height);
  71         },
  72         //
  73         API_openWin: function(env, xSize, ySize){
  74                 env.message("junkApi_openWin();\n", 20);
  75                 this.mainWindowCanvas.width = xSize;
  76                 this.mainWindowCanvas.height = ySize;
  77                 this.mainWindowBufferCanvas.width = xSize;
  78                 this.mainWindowBufferCanvas.height = ySize;
  79         },
  80         API_flushWin: function(env, xSize, ySize, x0, y0){
  81                 env.message("junkApi_flushWin();\n", 20);
  82                 this.mainWindowContext.drawImage(this.mainWindowBufferCanvas, x0, y0, xSize, ySize, 0, 0, xSize, ySize);
  83         },
  84         API_drawPoint: function(env, mode, x, y, col){
  85                 env.message("junkApi_drawPoint();\n", 20);
  86                 if((mode & 0x04) != 0){
  87                         col = this.colorTable[col];
  88                 }
  89                 this.mainWindowBufferContext.fillStyle = "#" + ("000000" + col.toString(16)).slice(-6).toUpperCase();
  90                 this.mainWindowBufferContext.fillRect(x, y, 1, 1);
  91         },
  92         API_drawLine: function(env, mode, x0, y0, x1, y1, col){
  93                 env.message("junkApi_drawLine();\n", 20);
  94
  95                 if((mode & 0x04) != 0){
  96                         col = this.colorTable[col];
  97                 }
  98
  99                 this.mainWindowBufferContext.strokeStyle = "#" + ("000000" + col.toString(16)).slice(-6).toUpperCase();
 100                 this.mainWindowBufferContext.beginPath();
 101                 this.mainWindowBufferContext.moveTo(x0, y0);
 102                 this.mainWindowBufferContext.lineTo(x1, y1);
 103                 this.mainWindowBufferContext.closePath();
 104                 this.mainWindowBufferContext.stroke();
 105         },
 106         API_fillRect: function(env, mode, xSize, ySize, x0, y0, col){
 107                 env.message("junkApi_fillRect();\n", 20);
 108
 109                 if((mode & 0x04) != 0){
 110                         col = this.colorTable[col];
 111                 }
 112
 113                 this.mainWindowBufferContext.fillStyle = "#" + ("000000" + col.toString(16)).slice(-6).toUpperCase();
 114                 this.mainWindowBufferContext.fillRect(x0, y0, xSize, ySize);
 115         },
 116         API_fillOval: function(env, mode, xSize, ySize, x0, y0, col){
 117                 env.message("junkApi_fillRect();\n", 20);
 118
 119                 if((mode & 0x04) != 0){
 120                         col = this.colorTable[col];
 121                 }
 122
 123                 this.mainWindowBufferContext.fillStyle = "#" + ("000000" + col.toString(16)).slice(-6).toUpperCase();
 124                 this.mainWindowBufferContext.fillEllipse(x0, y0, xSize, ySize);
 125         },
 126 }