╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ Title.zig ────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭c9cd0cdf..╮ c9cd0cdf.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (124) user
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
.. Home/ Home.zig ╭─────────────────────────────────╮ │Title.zig │ ╰─────────────────────────────────╯
477 "#....#", 478 "#....#", 479 "#....#", 480 ".#####", 481 ".....#", 482 ".....#", 483 "#....#", 484 ".####.", 485 }, 486 '-' => .{ 487 "......", 488 "......", 489 "......", 490 "......", 491 ".####.", 492 "......", 493 "......", 494 "......", 495 "......", 496 }, 497 '.' => .{ 498 "......", 499 "......", 500 "......", 501 "......", 502 "......", 503 "......", 504 "......", 505 "..##..", 506 "..##..", 507 }, 508 else => null, 509 }; 510 } 511 512 // map a 2x3 sub-pixel pattern to its corresponding sextant codepoint 513 fn sextantCodepoint(pattern: u6) u21 { 514 return switch (pattern) { 515 0b000000 => ' ', 516 0b010101 => 0x258C, // ▌ left half block 517 0b101010 => 0x2590, // ▐ right half block 518 0b111111 => 0x2588, // █ full block 519 else => blk: { 520 var offset: u21 = @as(u21, pattern) - 1; 521 if (pattern > 0b010101) offset -= 1; 522 if (pattern > 0b101010) offset -= 1; 523 break :blk 0x1FB00 + offset; 524 }, 525 }; 526 } 527 528 fn renderTitle(allocator: std.mem.Allocator, input: []const u8) ![]const u8 { 529 var rows: [3]std.ArrayList(u8) = .{ .empty, .empty, .empty }; 530 defer for (&rows) |*r| r.deinit(allocator); 531 532 var first = true; 533 for (input) |c| { 534 const glyph = glyphFor(c) orelse continue; 535 536 // row-aligned dither: keep on-pixels only at even bitmap rows. 537 var kept: [9][6]bool = std.mem.zeroes([9][6]bool); 538 for (0..9) |r| { 539 if (r % 2 != 0) continue; 540 for (0..6) |col| { 541 kept[r][col] = glyph[r][col] == '#'; 542 } 543 } 544 545 if (!first) { 546 for (&rows) |*r| try r.append(allocator, ' '); 547 } 548 first = false; 549 550 for (0..3) |text_row| { 551 for (0..3) |text_col| { 552 var pattern: u6 = 0; 553 for (0..3) |sub_row| { 554 for (0..2) |sub_col| { 555 const row_idx = text_row * 3 + sub_row; 556 const col_idx = text_col * 2 + sub_col; 557 if (kept[row_idx][col_idx]) { 558 pattern |= @as(u6, 1) << @intCast(sub_row * 2 + sub_col); 559 } 560 } 561 } 562 const cp = sextantCodepoint(pattern); 563 var utf8_buf: [4]u8 = undefined; 564 const len = try std.unicode.utf8Encode(cp, &utf8_buf); 565 try rows[text_row].appendSlice(allocator, utf8_buf[0..len]); 566 } 567 } 568 } 569 570 var out: std.ArrayList(u8) = .empty; 571 errdefer out.deinit(allocator); 572 try out.appendSlice(allocator, rows[0].items); 573 try out.append(allocator, '\n'); 574 try out.appendSlice(allocator, rows[1].items); 575 try out.append(allocator, '\n'); 576 try out.appendSlice(allocator, rows[2].items); 577 return out.toOwnedSlice(allocator); 578 } 579