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working just terrible :D:wq

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Brooke Vibber 2023-08-19 12:18:37 -07:00
parent ca7faf698f
commit 555a34b4db
1 changed files with 31 additions and 32 deletions
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63
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@ -78,6 +78,30 @@
return block.map((n) => ~n & 0xf);
}
function drawChar(bits, cx, cy, char, charset) {
let invert = Boolean(char & 0x80);
char &= 0x7f;
if (char >= charset.length) {
return;
}
let block = charset[char];
for (let y = 0; y < blockHeight; y++) {
for (let x = 0; x < blockWidth; x++) {
let i = y * blockWidth + x;
let ii = (y + cy * blockHeight) * bits.width + (x + cx * blockWidth);
let gray16 = block[i];
if (invert) {
gray16 = ~gray16 & 0x0f;
}
let gray256 = Math.round(gray16 * 255 / 15);
bits.data[ii * 4] = gray256;
bits.data[ii * 4 + 1] = gray256;
bits.data[ii * 4 + 2] = gray256;
bits.data[ii * 4 + 3] = 255;
}
}
}
function update() {
let ctx = work.getContext('2d');
let pixels = new Uint8Array(width * height);
@ -142,6 +166,7 @@
chars[i] = char;
}
*/
for (let threshold = 0; threshold < 16; threshold++) {
charIter:
for (let i = 0; i < chars.length; i++) {
@ -187,43 +212,17 @@
for (let hi = 0; hi < 16; hi++) {
for (let lo = 0; lo < 16; lo++) {
let char = (hi << 4) | lo;
let invert = Boolean(char & 0x80);
char &= 0x7f;
if (char >= uniques.length) {
continue;
}
let block = uniques[char];
for (let y = 0; y < blockHeight; y++) {
for (let x = 0; x < blockWidth; x++) {
let i = y * blockWidth + x;
let ii = (y + hi * blockHeight) * 16 * blockWidth + (x + lo * blockWidth);
if (block.length < i) {
debugger;
}
let gray16 = block[i];
if (invert) {
gray16 = ~gray16 & 0x0f;
}
let gray256 = Math.round(gray16 * 255 / 15);
font.data[ii * 4] = gray256;
font.data[ii * 4 + 1] = gray256;
font.data[ii * 4 + 2] = gray256;
font.data[ii * 4 + 3] = 255;
}
}
drawChar(font, lo, hi, char, uniques);
}
}
fontCtx.putImageData(font, 0, 0);
// Redraw the blocks
for (let y = 0; y < height; y++) {
for (let x = 0; x < width; x++) {
let i = y * width + x;
let gray16 = pixels[i];
let gray256 = Math.round(gray16 * 255 / 15);
data[i * 4] = gray256;
data[i * 4 + 1] = gray256;
data[i * 4 + 2] = gray256;
for (let cy = 0; cy < heightBlocks; cy++) {
for (let cx = 0; cx < widthBlocks; cx++) {
let i = cy * widthBlocks + cx;
drawChar(bits, cx, cy, chars[i], uniques);
}
}
ctx.putImageData(bits, 0, 0);