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v1.23.3: Starting work on VT100 support

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This commit is contained in:
Jeff Parsons 2016-07-27 13:02:33 -07:00 • committed by Jeff Parsons
commit cbea42b228
39 changed files with 9440 additions and 38 deletions
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41
modules/pc8080/lib/video.js
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@ -36,6 +36,7 @@ if (NODE) {
var web = require("../../shared/lib/weblib");
var DumpAPI = require("../../shared/lib/dumpapi");
var Component = require("../../shared/lib/component");
var ChipSet = require("./chipset");
var Memory = require("./memory");
var Messages = require("./messages");
var State = require("./state");
@ -53,7 +54,7 @@ if (NODE) {
* aspectRatio (eg, 1.33)
* bufferAddr: the starting address of the frame buffer (eg, 0x2400)
* bufferRAM: true to use existing RAM (default is false)
* bufferFormat: can be set to anything, but the only recognized format is currently "vt100"
* bufferFormat: if defined, one of the recognized formats in Video.FORMATS (eg, "vt100")
* bufferCols: the width of a single frame buffer row, in pixels (eg, 256)
* bufferRows: the number of frame buffer rows (eg, 224)
* bufferBits: the number of bits per column (default is 1)
@ -99,7 +100,10 @@ function Video(parmsVideo, canvas, context, textarea, container)
this.addrBuffer = parmsVideo['bufferAddr'];
this.fUseRAM = parmsVideo['bufferRAM'];
this.sFormat = parmsVideo['bufferFormat'];
var sFormat = parmsVideo['bufferFormat'];
this.nFormat = sFormat && Video.FORMATS[sFormat.toLowerCase()] || Video.FORMAT.UNKNOWN;
this.cxBuffer = parmsVideo['bufferCols'];
this.cyBuffer = parmsVideo['bufferRows'];
this.nBitsPerPixel = parmsVideo['bufferBits'] || 1;
@ -216,16 +220,22 @@ function Video(parmsVideo, canvas, context, textarea, container)
Component.subclass(Video);
/*
* TODO: Use of these overlay colors should be limited to machine's that require/request them (ie, Space Invaders),
* using an additional parmsVideo property.
*/
Video.COLORS = {
OVERLAY_TOP: 0,
OVERLAY_BOTTOM: 1,
OVERLAY_TOTAL: 2
};
Video.FORMAT = {
UNKNOWN: 0,
SI1978: 1,
VT100: 2
};
Video.FORMATS = {
"vt100": Video.FORMAT.VT100
};
/**
* initBus(cmp, bus, cpu, dbg)
*
@ -242,6 +252,13 @@ Video.prototype.initBus = function(cmp, bus, cpu, dbg)
this.cpu = cpu;
this.dbg = dbg;
if (!this.nFormat) {
this.chipset = cmp.getMachineComponent("ChipSet");
if (this.chipset && this.chipset.model == ChipSet.SI_1978.MODEL) {
this.nFormat = Video.FORMAT.SI1978;
}
}
/*
* Compute the size of the frame buffer and allocate.
*/
@ -439,14 +456,16 @@ Video.prototype.initColors = function()
{
var rgbBlack = [0x00, 0x00, 0x00, 0xff];
var rgbWhite = [0xff, 0xff, 0xff, 0xff];
var rgbGreen = [0x00, 0xff, 0x00, 0xff];
var rgbYellow = [0xff, 0xff, 0x00, 0xff];
this.nColors = (1 << this.nBitsPerPixel);
this.aRGB = new Array(this.nColors + Video.COLORS.OVERLAY_TOTAL);
this.aRGB[0] = rgbBlack;
this.aRGB[1] = rgbWhite;
this.aRGB[this.nColors + Video.COLORS.OVERLAY_TOP] = rgbYellow;
this.aRGB[this.nColors + Video.COLORS.OVERLAY_BOTTOM] = rgbGreen;
if (this.nFormat == Video.FORMAT.SI1978) {
var rgbGreen = [0x00, 0xff, 0x00, 0xff];
var rgbYellow = [0xff, 0xff, 0x00, 0xff];
this.aRGB[this.nColors + Video.COLORS.OVERLAY_TOP] = rgbYellow;
this.aRGB[this.nColors + Video.COLORS.OVERLAY_BOTTOM] = rgbGreen;
}
};
/**
@ -466,7 +485,7 @@ Video.prototype.setPixel = function(imageBuffer, x, y, bPixel)
} else {
index = (imageBuffer.height - x - 1) * imageBuffer.width + y;
}
if (bPixel) {
if (bPixel && this.nFormat == Video.FORMAT.SI1978) {
if (x >= 208 && x < 236) {
bPixel = this.nColors + Video.COLORS.OVERLAY_TOP;
}