commit c0988696d48e3933b64f5791b107869c1477e56e
parent 19f2628bafe8db5f070615cefa7234f4a3ed2f1f
Author: Andy Herbert <andy.herbert@gmail.com>
Date: Sat, 9 Nov 2013 09:45:41 +0000
Ordered functions to reflect semantic meaning.
Diffstat:
| M | ansilove.js | | | 986 | +++++++++++++++++++++++++++++++++++++++---------------------------------------- |
1 file changed, 491 insertions(+), 495 deletions(-)
diff --git a/ansilove.js b/ansilove.js
@@ -2,6 +2,30 @@ var AnsiLove = (function () {
"use strict";
var Palette, Font, Popup;
+ function httpGet(url, callback, callbackFail) {
+ var http = new XMLHttpRequest();
+ http.open("GET", url, true);
+
+ http.onreadystatechange = function () {
+ if (http.readyState === 4) {
+ switch (http.status) {
+ case 0:
+ case 200:
+ callback(new Uint8Array(http.response));
+ break;
+ default:
+ if (callbackFail) {
+ callbackFail(http.status);
+ }
+ }
+ }
+ };
+
+ http.setRequestHeader("Content-Type", "application/octet-stream");
+ http.responseType = "arraybuffer";
+ http.send();
+ }
+
function File(bytes) {
var pos, SAUCE_ID, COMNT_ID, commentCount;
@@ -123,11 +147,12 @@ var AnsiLove = (function () {
}
}
- function createCanvas(width, height) {
- var canvas = document.createElement("canvas");
- canvas.width = width;
- canvas.height = height;
- return canvas;
+ function sauce(url, callback, callbackFail) {
+ httpGet(url, function (bytes) {
+ var file;
+ file = new File(bytes);
+ callback(file.sauce);
+ }, callbackFail);
}
Font = (function () {
@@ -377,10 +402,6 @@ var AnsiLove = (function () {
}
function getFontFromFile(file, width, height, amigaFont) {
- var fontBitWidth, fontBuffer, fontBuffer24Bit;
- fontBitWidth = width * height;
- fontBuffer = [];
- fontBuffer24Bit = new Uint8Array(width * height * 4);
return font(bytesToBits(file, width, height), width, height, amigaFont);
}
@@ -500,103 +521,6 @@ var AnsiLove = (function () {
};
}());
- function ScreenData(width) {
- var imageData, maxY, pos;
-
- this.reset = function () {
- imageData = new Uint8Array(width * 1000 * 2);
- maxY = 0;
- pos = 0;
- };
-
- this.reset();
-
- function extendImageData(y) {
- var newImageData;
- newImageData = new Uint8Array(width * (y + 1000) * 2 + imageData.length);
- newImageData.set(imageData, 0);
- imageData = newImageData;
- }
-
- this.set = function (x, y, charCode, attrib) {
- pos = (y * width + x) * 2;
- if (pos >= imageData.length) {
- extendImageData(y);
- }
- imageData[pos] = charCode;
- imageData[pos + 1] = attrib;
- if (y > maxY) {
- maxY = y;
- }
- };
-
- this.push = function (charCode, attrib) {
- var y;
- imageData[pos++] = charCode;
- imageData[pos++] = attrib;
- y = Math.ceil(pos / width / 2);
- if (pos === imageData.length) {
- extendImageData(y);
- }
- if (y > maxY) {
- maxY = y;
- }
- };
-
- this.getData = function () {
- return imageData.subarray(0, width * (maxY + 1) * 2);
- };
-
- this.getHeight = function () {
- return maxY + 1;
- };
-
- this.rowLength = width * 2;
- }
-
- function ScreenData24(width) {
- var imageData, maxY, pos;
-
- imageData = new Uint8Array(width * 27 * 9);
- maxY = 0;
- pos = 0;
-
- function extendImageData(y) {
- var newImageData;
- newImageData = new Uint8Array(width * (y + 27) * 9 + imageData.length);
- newImageData.set(imageData, 0);
- imageData = newImageData;
- }
-
- this.set = function (x, y, charCode, fg, bg) {
- pos = (y * width + x) * 9;
- if (pos >= imageData.length) {
- extendImageData(y);
- }
- imageData[pos] = charCode;
- imageData.set(fg, pos + 1);
- imageData.set(bg, pos + 5);
- if (y > maxY) {
- maxY = y;
- }
- };
-
- this.getData = function () {
- var subarray, i;
- for (subarray = imageData.subarray(0, width * (maxY + 1) * 9), i = 0; i < subarray.length; i += 9) {
- subarray[i + 4] = 255;
- subarray[i + 8] = 255;
- }
- return subarray;
- };
-
- this.getHeight = function () {
- return maxY + 1;
- };
-
- this.rowLength = width * 9;
- }
-
function scaleCanvas(sourceData, width, height, chunkWidth, chunkHeight) {
var destWidth, destHeight, destData, rgba, pixelRowOffset, chunkSize, i, j, k, x, y, r, g, b, a;
@@ -638,7 +562,7 @@ var AnsiLove = (function () {
}
function display(raw, start, length, altFont, options) {
- var canvasWidth, canvasHeight, rgbaData, font, end, i, j, k, l, x, fontBitWidth, fontDisplayWidth, displayFontBitWidth, fontData, rowOffset, screenOffset, fontOffset, chunky;
+ var canvasWidth, canvasHeight, rgbaData, font, end, i, k, l, x, fontBitWidth, fontDisplayWidth, displayFontBitWidth, fontData, rowOffset, screenOffset, fontOffset, chunky;
font = raw.font || altFont || Font.preset("80x25");
@@ -656,7 +580,7 @@ var AnsiLove = (function () {
rowOffset = canvasWidth * 4;
if (raw.palette) {
- for (i = start, screenOffset = 0, j = x = 0; i < end; i += 2, screenOffset += displayFontBitWidth) {
+ for (i = start, screenOffset = 0, x = 0; i < end; i += 2, screenOffset += displayFontBitWidth) {
fontData = font.getData(raw.imageData[i], raw.palette, raw.imageData[i + 1] & 15, raw.imageData[i + 1] >> 4);
for (fontOffset = screenOffset, k = l = 0; k < font.height; ++k, fontOffset += rowOffset, l += fontBitWidth) {
rgbaData.set(fontData.subarray(l, l + displayFontBitWidth), fontOffset);
@@ -666,7 +590,7 @@ var AnsiLove = (function () {
}
}
} else {
- for (i = start, screenOffset = 0, j = x = 0; i < end; i += 9, screenOffset += displayFontBitWidth) {
+ for (i = start, screenOffset = 0, x = 0; i < end; i += 9, screenOffset += displayFontBitWidth) {
fontData = font.get24BitData(raw.imageData[i], raw.imageData.subarray(i + 1, i + 5), raw.imageData.subarray(i + 5, i + 9));
for (fontOffset = screenOffset, k = l = 0; k < font.height; ++k, fontOffset += rowOffset, l += fontBitWidth) {
rgbaData.set(fontData.subarray(l, l + displayFontBitWidth), fontOffset);
@@ -689,326 +613,97 @@ var AnsiLove = (function () {
};
}
- function xb(bytes) {
- var file, header, palette, font, imageData;
-
- function XBinHeader(file) {
- var flags;
-
- if (file.getS(4) !== "XBIN") {
- throw "File ID does not match.";
- }
-
- if (file.get() !== 26) {
- throw "File ID does not match.";
- }
-
- this.width = file.get16();
- this.height = file.get16();
-
- this.fontHeight = file.get();
-
- if (this.fontHeight === 0 || this.fontHeight > 32) {
- throw "Illegal value for the font height (" + this.fontHeight + ").";
- }
-
- flags = file.get();
-
- this.palette = ((flags & 1) === 1);
- this.font = ((flags & 2) === 2);
-
- if (this.fontHeight !== 16 && !this.font) {
- throw "A non-standard font size was defined, but no font information was included with the file.";
- }
+ function createCanvas(width, height) {
+ var canvas = document.createElement("canvas");
+ canvas.width = width;
+ canvas.height = height;
+ return canvas;
+ }
- this.compressed = ((flags & 4) === 4);
- this.nonBlink = ((flags & 8) === 8);
- this.char512 = ((flags & 16) === 16);
- }
+ function displayDataToCanvas(displayData) {
+ var canvas, ctx, imageData;
+ canvas = createCanvas(displayData.width, displayData.height);
+ ctx = canvas.getContext("2d");
+ imageData = ctx.createImageData(canvas.width, canvas.height);
+ imageData.data.set(displayData.rgbaData, 0);
+ ctx.putImageData(imageData, 0, 0);
+ return canvas;
+ }
- function uncompress(file, width, height) {
- var uncompressed, p, i, j, repeatAttr, repeatChar, count;
- uncompressed = new Uint8Array(width * height * 2);
- i = 0;
- while (i < uncompressed.length) {
- p = file.get();
- count = p & 63;
- switch (p >> 6) {
- case 1:
- for (repeatChar = file.get(), j = 0; j <= count; ++j) {
- uncompressed[i++] = repeatChar;
- uncompressed[i++] = file.get();
- }
- break;
- case 2:
- for (repeatAttr = file.get(), j = 0; j <= count; ++j) {
- uncompressed[i++] = file.get();
- uncompressed[i++] = repeatAttr;
- }
- break;
- case 3:
- for (repeatChar = file.get(), repeatAttr = file.get(), j = 0; j <= count; ++j) {
- uncompressed[i++] = repeatChar;
- uncompressed[i++] = repeatAttr;
- }
- break;
- default:
- for (j = 0; j <= count; ++j) {
- uncompressed[i++] = file.get();
- uncompressed[i++] = file.get();
- }
- }
- }
- return uncompressed;
- }
+ function adf(bytes) {
+ var file, palette, font, imageData;
file = new File(bytes);
- header = new XBinHeader(file);
- palette = header.palette ? Palette.triplets16(file) : Palette.BIN;
- font = header.font ? Font.xbin(file, header.fontHeight) : Font.preset("80x25");
- imageData = header.compressed ? uncompress(file, header.width, header.height) : file.read(header.width * header.height * 2);
+ file.getC();
+
+ palette = Palette.adf(file);
+ font = Font.font8x16x256(file);
+ imageData = file.read();
return {
"font": font,
- "height": header.height,
+ "height": imageData.length / 2 / 80,
"imageData": imageData,
"palette": palette,
- "width": header.width,
- "rowLength": header.width * 2,
+ "width": 80,
+ "rowLength": 80 * 2,
"sauce": file.sauce
};
}
- function bin(bytes, options) {
- var file, imageData, i;
+ function ScreenData(width) {
+ var imageData, maxY, pos;
- file = new File(bytes);
- imageData = file.read(file.size);
- if (!options.icecolors) {
- for (i = 1; i < imageData.length; i += 2) {
- imageData[i] = imageData[i] & 127;
- }
- }
+ this.reset = function () {
+ imageData = new Uint8Array(width * 1000 * 2);
+ maxY = 0;
+ pos = 0;
+ };
- return {
- "height": Math.round(imageData.length / 2 / options.columns),
- "imageData": imageData,
- "palette": Palette.BIN,
- "width": options.columns,
- "rowLength": options.columns * 2,
- "sauce": file.sauce
- };
- }
-
- function adf(bytes) {
- var file, palette, font, imageData;
-
- file = new File(bytes);
-
- file.getC();
-
- palette = Palette.adf(file);
- font = Font.font8x16x256(file);
- imageData = file.read();
-
- return {
- "font": font,
- "height": imageData.length / 2 / 80,
- "imageData": imageData,
- "palette": palette,
- "width": 80,
- "rowLength": 80 * 2,
- "sauce": file.sauce
- };
- }
-
- function tnd(bytes) {
- var file, x, y, imageData, charCode, fg, bg;
-
- function get32(file) {
- var v;
- v = file.get() << 24;
- v += file.get() << 16;
- v += file.get() << 8;
- return v + file.get();
- }
-
- file = new File(bytes);
+ this.reset();
- if (file.get() !== 24) {
- throw "File ID does not match.";
- }
- if (file.getS(8) !== "TUNDRA24") {
- throw "File ID does not match.";
+ function extendImageData(y) {
+ var newImageData;
+ newImageData = new Uint8Array(width * (y + 1000) * 2 + imageData.length);
+ newImageData.set(imageData, 0);
+ imageData = newImageData;
}
- fg = new Uint8Array(3);
- bg = new Uint8Array(3);
- x = y = 0;
-
- imageData = new ScreenData24(80);
-
- while (!file.eof()) {
- if (x === 80) {
- x = 0;
- ++y;
- }
- charCode = file.get();
- if (charCode === 1) {
- y = get32(file);
- x = get32(file);
- }
- if (charCode === 2) {
- charCode = file.get();
- file.get();
- fg.set(file.read(3), 0);
- }
- if (charCode === 4) {
- charCode = file.get();
- file.get();
- bg.set(file.read(3), 0);
- }
- if (charCode === 6) {
- charCode = file.get();
- file.get();
- fg.set(file.read(3), 0);
- file.get();
- bg.set(file.read(3), 0);
- }
- if (charCode !== 1 && charCode !== 2 && charCode !== 4 && charCode !== 6) {
- imageData.set(x, y, charCode, fg, bg);
- ++x;
+ this.set = function (x, y, charCode, attrib) {
+ pos = (y * width + x) * 2;
+ if (pos >= imageData.length) {
+ extendImageData(y);
}
- }
-
- return {
- "height": imageData.getHeight(),
- "imageData": imageData.getData(),
- "palette": undefined,
- "width": 80,
- "rowLength": imageData.rowLength,
- "sauce": file.sauce
- };
- }
-
- function idf(bytes) {
- var file, width, palette, font, imageData, c, loop, ch, attr;
-
- file = new File(bytes);
-
- file.seek(8);
-
- width = file.get16() + 1;
-
- imageData = new ScreenData(width);
-
- file.seek(12);
-
- while (file.getPos() < file.size - 4144) {
- c = file.get16();
- if (c === 1) {
- loop = file.get();
- file.get();
- ch = file.get();
- attr = file.get();
- while (loop-- > 0) {
- imageData.push(ch, attr);
- }
- } else {
- imageData.push(c & 255, c >> 8);
+ imageData[pos] = charCode;
+ imageData[pos + 1] = attrib;
+ if (y > maxY) {
+ maxY = y;
}
- }
-
- font = Font.font8x16x256(file);
-
- palette = Palette.triplets16(file);
-
- return {
- "font": font,
- "height": imageData.getHeight(),
- "imageData": imageData.getData(),
- "palette": palette,
- "width": width,
- "rowLength": imageData.rowLength,
- "sauce": file.sauce
};
- }
-
- function pcb(bytes, options) {
- var file, loop, charCode, bg, fg, x, y, imageData;
-
- file = new File(bytes);
-
- imageData = new ScreenData(80);
-
- bg = 0;
- fg = 7;
- loop = x = y = 0;
- function printChar() {
- imageData.set(x, y, charCode, fg + (bg << 4));
- if (++x === 80) {
- y++;
- x = 0;
+ this.push = function (charCode, attrib) {
+ var y;
+ imageData[pos++] = charCode;
+ imageData[pos++] = attrib;
+ y = Math.ceil(pos / width / 2);
+ if (pos === imageData.length) {
+ extendImageData(y);
}
- }
-
- while (loop < file.size) {
- charCode = bytes[loop];
-
- if (charCode === 26) {
- break;
+ if (y > maxY) {
+ maxY = y;
}
+ };
- switch (charCode) {
- case 13:
- break;
- case 10:
- y++;
- x = 0;
- break;
- case 9:
- x += 8;
- break;
- case 64:
- if (bytes[loop + 1] === 88) {
- bg = bytes[loop + 2] - ((bytes[loop + 2] >= 65) ? 55 : 48);
- if (!options.icecolors && bg > 7) {
- bg -= 8;
- }
- fg = bytes[loop + 3] - ((bytes[loop + 3] >= 65) ? 55 : 48);
- loop += 3;
- } else if (bytes[loop + 1] === 67 && bytes[loop + 2] === 76 && bytes[loop + 3] === 83) {
- x = y = 0;
- imageData.reset();
- loop += 4;
- } else if (bytes[loop + 1] === 80 && bytes[loop + 2] === 79 && bytes[loop + 3] === 83 && bytes[loop + 4] === 58) {
- if (bytes[loop + 6] === 64) {
- x = ((bytes[loop + 5]) - 48) - 1;
- loop += 5;
- } else {
- x = (10 * ((bytes[loop + 5]) - 48) + (bytes[loop + 6]) - 48) - 1;
- loop += 6;
- }
- } else {
- printChar();
- }
- break;
- default:
- printChar();
- }
- loop++;
- }
+ this.getData = function () {
+ return imageData.subarray(0, width * (maxY + 1) * 2);
+ };
- return {
- "height": imageData.getHeight(),
- "imageData": imageData.getData(),
- "palette": Palette.BIN,
- "width": 80,
- "rowLength": imageData.rowLength,
- "sauce": file.sauce
+ this.getHeight = function () {
+ return maxY + 1;
};
+
+ this.rowLength = width * 2;
}
function ans(bytes, options) {
@@ -1216,58 +911,377 @@ var AnsiLove = (function () {
function asc(bytes) {
var file, imageData, code, x, y;
- file = new File(bytes);
- imageData = new ScreenData(80);
+ file = new File(bytes);
+ imageData = new ScreenData(80);
+
+ x = 0;
+ y = 0;
+
+ while (!file.eof()) {
+ code = file.get();
+ if (code === 13 && file.peek() === 10) {
+ file.read(1);
+ ++y;
+ x = 0;
+ } else if (code === 10) {
+ ++y;
+ x = 0;
+ } else {
+ imageData.set(x++, y, code, 1);
+ }
+ }
+
+ return {
+ "imageData": imageData.getData(),
+ "palette": Palette.ASC_PC,
+ "width": 80,
+ "rowLength": imageData.rowLength,
+ "height": imageData.getHeight(),
+ "sauce": file.sauce
+ };
+ }
+
+ function bin(bytes, options) {
+ var file, imageData, i;
+
+ file = new File(bytes);
+ imageData = file.read(file.size);
+ if (!options.icecolors) {
+ for (i = 1; i < imageData.length; i += 2) {
+ imageData[i] = imageData[i] & 127;
+ }
+ }
+
+ return {
+ "height": Math.round(imageData.length / 2 / options.columns),
+ "imageData": imageData,
+ "palette": Palette.BIN,
+ "width": options.columns,
+ "rowLength": options.columns * 2,
+ "sauce": file.sauce
+ };
+ }
+
+ function idf(bytes) {
+ var file, width, palette, font, imageData, c, loop, ch, attr;
+
+ file = new File(bytes);
+
+ file.seek(8);
+
+ width = file.get16() + 1;
+
+ imageData = new ScreenData(width);
+
+ file.seek(12);
+
+ while (file.getPos() < file.size - 4144) {
+ c = file.get16();
+ if (c === 1) {
+ loop = file.get();
+ file.get();
+ ch = file.get();
+ attr = file.get();
+ while (loop-- > 0) {
+ imageData.push(ch, attr);
+ }
+ } else {
+ imageData.push(c & 255, c >> 8);
+ }
+ }
+
+ font = Font.font8x16x256(file);
+
+ palette = Palette.triplets16(file);
+
+ return {
+ "font": font,
+ "height": imageData.getHeight(),
+ "imageData": imageData.getData(),
+ "palette": palette,
+ "width": width,
+ "rowLength": imageData.rowLength,
+ "sauce": file.sauce
+ };
+ }
+
+ function pcb(bytes, options) {
+ var file, loop, charCode, bg, fg, x, y, imageData;
+
+ file = new File(bytes);
+
+ imageData = new ScreenData(80);
+
+ bg = 0;
+ fg = 7;
+ loop = x = y = 0;
+
+ function printChar() {
+ imageData.set(x, y, charCode, fg + (bg << 4));
+ if (++x === 80) {
+ y++;
+ x = 0;
+ }
+ }
+
+ while (loop < file.size) {
+ charCode = bytes[loop];
+
+ if (charCode === 26) {
+ break;
+ }
+
+ switch (charCode) {
+ case 13:
+ break;
+ case 10:
+ y++;
+ x = 0;
+ break;
+ case 9:
+ x += 8;
+ break;
+ case 64:
+ if (bytes[loop + 1] === 88) {
+ bg = bytes[loop + 2] - ((bytes[loop + 2] >= 65) ? 55 : 48);
+ if (!options.icecolors && bg > 7) {
+ bg -= 8;
+ }
+ fg = bytes[loop + 3] - ((bytes[loop + 3] >= 65) ? 55 : 48);
+ loop += 3;
+ } else if (bytes[loop + 1] === 67 && bytes[loop + 2] === 76 && bytes[loop + 3] === 83) {
+ x = y = 0;
+ imageData.reset();
+ loop += 4;
+ } else if (bytes[loop + 1] === 80 && bytes[loop + 2] === 79 && bytes[loop + 3] === 83 && bytes[loop + 4] === 58) {
+ if (bytes[loop + 6] === 64) {
+ x = ((bytes[loop + 5]) - 48) - 1;
+ loop += 5;
+ } else {
+ x = (10 * ((bytes[loop + 5]) - 48) + (bytes[loop + 6]) - 48) - 1;
+ loop += 6;
+ }
+ } else {
+ printChar();
+ }
+ break;
+ default:
+ printChar();
+ }
+ loop++;
+ }
+
+ return {
+ "height": imageData.getHeight(),
+ "imageData": imageData.getData(),
+ "palette": Palette.BIN,
+ "width": 80,
+ "rowLength": imageData.rowLength,
+ "sauce": file.sauce
+ };
+ }
+
+ function ScreenData24(width) {
+ var imageData, maxY, pos;
+
+ imageData = new Uint8Array(width * 27 * 9);
+ maxY = 0;
+ pos = 0;
+
+ function extendImageData(y) {
+ var newImageData;
+ newImageData = new Uint8Array(width * (y + 27) * 9 + imageData.length);
+ newImageData.set(imageData, 0);
+ imageData = newImageData;
+ }
+
+ this.set = function (x, y, charCode, fg, bg) {
+ pos = (y * width + x) * 9;
+ if (pos >= imageData.length) {
+ extendImageData(y);
+ }
+ imageData[pos] = charCode;
+ imageData.set(fg, pos + 1);
+ imageData.set(bg, pos + 5);
+ if (y > maxY) {
+ maxY = y;
+ }
+ };
+
+ this.getData = function () {
+ var subarray, i;
+ for (subarray = imageData.subarray(0, width * (maxY + 1) * 9), i = 0; i < subarray.length; i += 9) {
+ subarray[i + 4] = 255;
+ subarray[i + 8] = 255;
+ }
+ return subarray;
+ };
+
+ this.getHeight = function () {
+ return maxY + 1;
+ };
+
+ this.rowLength = width * 9;
+ }
+
+ function tnd(bytes) {
+ var file, x, y, imageData, charCode, fg, bg;
+
+ function get32(file) {
+ var v;
+ v = file.get() << 24;
+ v += file.get() << 16;
+ v += file.get() << 8;
+ return v + file.get();
+ }
+
+ file = new File(bytes);
+
+ if (file.get() !== 24) {
+ throw "File ID does not match.";
+ }
+ if (file.getS(8) !== "TUNDRA24") {
+ throw "File ID does not match.";
+ }
+
+ fg = new Uint8Array(3);
+ bg = new Uint8Array(3);
+ x = y = 0;
- x = 0;
- y = 0;
+ imageData = new ScreenData24(80);
while (!file.eof()) {
- code = file.get();
- if (code === 13 && file.peek() === 10) {
- file.read(1);
- ++y;
+ if (x === 80) {
x = 0;
- } else if (code === 10) {
++y;
- x = 0;
- } else {
- imageData.set(x++, y, code, 1);
+ }
+ charCode = file.get();
+ if (charCode === 1) {
+ y = get32(file);
+ x = get32(file);
+ }
+ if (charCode === 2) {
+ charCode = file.get();
+ file.get();
+ fg.set(file.read(3), 0);
+ }
+ if (charCode === 4) {
+ charCode = file.get();
+ file.get();
+ bg.set(file.read(3), 0);
+ }
+ if (charCode === 6) {
+ charCode = file.get();
+ file.get();
+ fg.set(file.read(3), 0);
+ file.get();
+ bg.set(file.read(3), 0);
+ }
+ if (charCode !== 1 && charCode !== 2 && charCode !== 4 && charCode !== 6) {
+ imageData.set(x, y, charCode, fg, bg);
+ ++x;
}
}
return {
+ "height": imageData.getHeight(),
"imageData": imageData.getData(),
- "palette": Palette.ASC_PC,
+ "palette": undefined,
"width": 80,
"rowLength": imageData.rowLength,
- "height": imageData.getHeight(),
"sauce": file.sauce
};
}
- function httpGet(url, callback, callbackFail) {
- var http = new XMLHttpRequest();
- http.open("GET", url, true);
+ function xb(bytes) {
+ var file, header, palette, font, imageData;
- http.onreadystatechange = function () {
- if (http.readyState === 4) {
- switch (http.status) {
- case 0:
- case 200:
- callback(new Uint8Array(http.response));
+ function XBinHeader(file) {
+ var flags;
+
+ if (file.getS(4) !== "XBIN") {
+ throw "File ID does not match.";
+ }
+
+ if (file.get() !== 26) {
+ throw "File ID does not match.";
+ }
+
+ this.width = file.get16();
+ this.height = file.get16();
+
+ this.fontHeight = file.get();
+
+ if (this.fontHeight === 0 || this.fontHeight > 32) {
+ throw "Illegal value for the font height (" + this.fontHeight + ").";
+ }
+
+ flags = file.get();
+
+ this.palette = ((flags & 1) === 1);
+ this.font = ((flags & 2) === 2);
+
+ if (this.fontHeight !== 16 && !this.font) {
+ throw "A non-standard font size was defined, but no font information was included with the file.";
+ }
+
+ this.compressed = ((flags & 4) === 4);
+ this.nonBlink = ((flags & 8) === 8);
+ this.char512 = ((flags & 16) === 16);
+ }
+
+ function uncompress(file, width, height) {
+ var uncompressed, p, i, j, repeatAttr, repeatChar, count;
+ uncompressed = new Uint8Array(width * height * 2);
+ i = 0;
+ while (i < uncompressed.length) {
+ p = file.get();
+ count = p & 63;
+ switch (p >> 6) {
+ case 1:
+ for (repeatChar = file.get(), j = 0; j <= count; ++j) {
+ uncompressed[i++] = repeatChar;
+ uncompressed[i++] = file.get();
+ }
+ break;
+ case 2:
+ for (repeatAttr = file.get(), j = 0; j <= count; ++j) {
+ uncompressed[i++] = file.get();
+ uncompressed[i++] = repeatAttr;
+ }
+ break;
+ case 3:
+ for (repeatChar = file.get(), repeatAttr = file.get(), j = 0; j <= count; ++j) {
+ uncompressed[i++] = repeatChar;
+ uncompressed[i++] = repeatAttr;
+ }
break;
default:
- if (callbackFail) {
- callbackFail(http.status);
+ for (j = 0; j <= count; ++j) {
+ uncompressed[i++] = file.get();
+ uncompressed[i++] = file.get();
}
}
}
- };
+ return uncompressed;
+ }
- http.setRequestHeader("Content-Type", "application/octet-stream");
- http.responseType = "arraybuffer";
- http.send();
+ file = new File(bytes);
+ header = new XBinHeader(file);
+
+ palette = header.palette ? Palette.triplets16(file) : Palette.BIN;
+ font = header.font ? Font.xbin(file, header.fontHeight) : Font.preset("80x25");
+ imageData = header.compressed ? uncompress(file, header.width, header.height) : file.read(header.width * header.height * 2);
+
+ return {
+ "font": font,
+ "height": header.height,
+ "imageData": imageData,
+ "palette": palette,
+ "width": header.width,
+ "rowLength": header.width * 2,
+ "sauce": file.sauce
+ };
}
function trimColumns(data) {
@@ -1289,16 +1303,6 @@ var AnsiLove = (function () {
return data;
}
- function displayDataToCanvas(displayData) {
- var canvas, ctx, imageData;
- canvas = createCanvas(displayData.width, displayData.height);
- ctx = canvas.getContext("2d");
- imageData = ctx.createImageData(canvas.width, canvas.height);
- imageData.data.set(displayData.rgbaData, 0);
- ctx.putImageData(imageData, 0, 0);
- return canvas;
- }
-
function readBytes(bytes, callback, splitRows, options) {
var data, font, returnArray, start, splitLength, displayData;
@@ -1375,11 +1379,47 @@ var AnsiLove = (function () {
}
}
- function sauce(url, callback, callbackFail) {
+ function renderBytes(bytes, callback, options, callbackFail) {
+ try {
+ readBytes(bytes, callback, 0, options || {});
+ } catch (e) {
+ if (callbackFail) {
+ callbackFail(e);
+ } else {
+ throw e;
+ }
+ }
+ }
+
+ function render(url, callback, options, callbackFail) {
httpGet(url, function (bytes) {
- var file;
- file = new File(bytes);
- callback(file.sauce);
+ options = options || {};
+ if (!options.filetype) {
+ options.filetype = url.split(".").pop().toLowerCase();
+ }
+ renderBytes(bytes, callback, options, callbackFail);
+ }, callbackFail);
+ }
+
+ function splitRenderBytes(bytes, callback, splitRows, options, callbackFail) {
+ try {
+ readBytes(bytes, callback, splitRows || 27, options || {});
+ } catch (e) {
+ if (callbackFail) {
+ callbackFail(e);
+ } else {
+ throw e;
+ }
+ }
+ }
+
+ function splitRender(url, callback, splitRows, options, callbackFail) {
+ httpGet(url, function (bytes) {
+ options = options || {};
+ if (!options.filetype) {
+ options.filetype = url.split(".").pop().toLowerCase();
+ }
+ splitRenderBytes(bytes, callback, splitRows, options, callbackFail);
}, callbackFail);
}
@@ -1701,50 +1741,6 @@ var AnsiLove = (function () {
};
}
- function renderBytes(bytes, callback, options, callbackFail) {
- try {
- readBytes(bytes, callback, 0, options || {});
- } catch (e) {
- if (callbackFail) {
- callbackFail(e);
- } else {
- throw e;
- }
- }
- }
-
- function render(url, callback, options, callbackFail) {
- httpGet(url, function (bytes) {
- options = options || {};
- if (!options.filetype) {
- options.filetype = url.split(".").pop().toLowerCase();
- }
- renderBytes(bytes, callback, options, callbackFail);
- }, callbackFail);
- }
-
- function splitRenderBytes(bytes, callback, splitRows, options, callbackFail) {
- try {
- readBytes(bytes, callback, splitRows || 27, options || {});
- } catch (e) {
- if (callbackFail) {
- callbackFail(e);
- } else {
- throw e;
- }
- }
- }
-
- function splitRender(url, callback, splitRows, options, callbackFail) {
- httpGet(url, function (bytes) {
- options = options || {};
- if (!options.filetype) {
- options.filetype = url.split(".").pop().toLowerCase();
- }
- splitRenderBytes(bytes, callback, splitRows, options, callbackFail);
- }, callbackFail);
- }
-
function animateBytes(bytes, callback, options) {
var ansimation;
ansimation = new Ansimation(bytes, options || {});
@@ -1950,18 +1946,18 @@ var AnsiLove = (function () {
}
return {
- "render": render,
- "splitRender": splitRender,
+ "sauce": sauce,
+ "displayDataToCanvas": displayDataToCanvas,
"renderBytes": renderBytes,
+ "render": render,
"splitRenderBytes": splitRenderBytes,
- "animate": animate,
+ "splitRender": splitRender,
"animateBytes": animateBytes,
- "popup": popup,
+ "animate": animate,
"popupBytes": popupBytes,
- "popupAnimation": popupAnimation,
+ "popup": popup,
"popupAnimationBytes": popupAnimationBytes,
- "displayDataToCanvas": displayDataToCanvas,
- "sauce": sauce
+ "popupAnimation": popupAnimation
};
}());
