From cb518b00efc8fe29df713e652450e90448340c29 Mon Sep 17 00:00:00 2001 From: Mitya Selivanov Date: Thu, 3 Oct 2024 08:32:25 +0200 Subject: Refactor --- examples/ui.c | 321 +--------------------------------------------------------- 1 file changed, 1 insertion(+), 320 deletions(-) (limited to 'examples/ui.c') diff --git a/examples/ui.c b/examples/ui.c index bd508e8..0847af3 100755 --- a/examples/ui.c +++ b/examples/ui.c @@ -25,326 +25,7 @@ gcc \ exit $? # */ #endif -#include "../reduced_system_layer.c" - -#define CHAR_NUM_BITS_X 6 -#define CHAR_NUM_BITS_Y 7 -#define CHAR_NUM_BITS (CHAR_NUM_BITS_X * CHAR_NUM_BITS_Y) - -enum { - OP_SET, - OP_XOR, -}; - -u64 bitfont[] = { - 0xbc0000000000, 0xc00300000, 0x5fd5040093f24fc9, 0xa00a2c2a1a280105, 0xc000415e6f, 0x400000020be0000, 0x1c38a8400000007d, 0x40002043e1020215, 0x408102000000010, 0x9800000000020002, 0xf913e00000033, 0x53200000207c8800, 0x3654880000099, 0x54b800000f840e00, 0xe953c000001a, 0x953e000000674080, 0x1e54b800000f, 0x490000000000240, 0x88a08000000, 0x20a220050a142850, 0x6520800000, 0x912f801eab260be, 0x800034952bf0001f, 0xc850bf0000921427, 0xf00010a54afc0003, 0xd29427800002142b, 0x840007e1023f0000, 0x7d09100000217e, 0x3f000188a08fc000, 0xc30c0cfc00000810, 0x27803f101013f00f, 0xc244bf0000f214, 0x4bf0002f21427800, 0xc254a480006c24, 0x407c00102fc08100, 0xf208080f0000fa0, 0x531007d81c607c0, 0xc208288c031141, 0x83fc00046954b10, 0x180e03000000, 0x41040000000ff04, 0x8102040810000404, 0x2a54600000000101, 0x309123e0000e, 0xc912180000a22447, 0x8000062a54700007, 0xe52a4300000029f0, 0xa0000602043e0001, 0x1d48000002074, 0x1f000003610f8000, 0x13e04f800000010, 0x470000780813e00f, 0x184893e0000e224, 0x23e0001f12243000, 0x82a54100000008, 0x40780000009f0200, 0xe208080e0001f20, 0xa22007981860780, 0x82082888022282, 0x16c200004ca95320, 0x7f000004, 0x408200000086d04, 0x8204, -}; - -#define BITFONT_LEN ((i64) (sizeof bitfont / sizeof *bitfont)) - -i64 char_column_offset(c32 c, i64 column_index) { - if (column_index < 0 || column_index >= CHAR_NUM_BITS_X) - return -1; - return (c - 32) * CHAR_NUM_BITS + column_index * CHAR_NUM_BITS_Y; -} - -b8 char_bit(i64 column_offset, i64 row_index) { - if (column_offset < 0 || column_offset / 64 >= BITFONT_LEN || row_index < 0 || row_index >= CHAR_NUM_BITS_Y) - return 0; - - i64 bit_index = column_offset + row_index; - i64 qword_index = bit_index / 64; - if (qword_index < 0 || qword_index >= BITFONT_LEN) - return 0; - u64 mask = 1ull << (bit_index % 64); - return !!(bitfont[qword_index] & mask); -} - -u64 char_column_convolved(c32 c, i64 column_index) { - if (column_index < 0 || column_index >= CHAR_NUM_BITS_X) - return 0; - - u64 column = 0; - i64 offset = char_column_offset(c, column_index); - - for (i64 y = 0; y < CHAR_NUM_BITS_Y; ++y) - if (char_bit(offset, y)) - column |= 3ull << y; - - return column; -} - -b8 char_column_empty(c32 c, i64 column_index) { - if (column_index < 0 || column_index >= CHAR_NUM_BITS_X) - return 1; - - i64 offset = char_column_offset(c, column_index); - - for (i64 y = 0; y < CHAR_NUM_BITS_Y; ++y) - if (char_bit(offset, y)) - return 0; - - return 1; -} - -i64 char_width(c32 c) { - if (c < 32) - return 0; - if (c == ' ' || c > 127) - return 4; - - i64 width = 0; - - for (; width < CHAR_NUM_BITS_X; ++width) - if (char_column_empty(c, width) && char_column_empty(c, width + 1)) - break; - - return width; -} - -i64 char_spacing(i64 num_chars, c32 *text, i64 index) { - assert(text != NULL); - - if (index < 0 || index + 1 >= num_chars) - return 0; - - u64 a = char_column_convolved(text[index], char_width(text[index]) - 1); - u64 b = char_column_convolved(text[index + 1], 0); - - if (!!(a & b)) - return 1; - - return 0; -} - -i64 text_cursor(i64 num_chars, c32 *text) { - assert(text != NULL); - - i64 cursor = 0; - - for (i64 i = 0; i < num_chars; ++i) { - if (text[i] <= ' ') { - if (text[i] == '\n') - cursor = 0; - else if (text[i] == '\b' && i > 0) - cursor -= char_width(text[i - 1]) + char_spacing(num_chars, text, i - 1); - else if (text[i] == '\r') - cursor = 0; - else - cursor += char_width(' ') + char_spacing(num_chars, text, i); - continue; - } - cursor += char_width(text[i]) + char_spacing(num_chars, text, i); - } - - return cursor; -} - -i64 enum_text_columns(i64 num_chars, c32 *text) { - assert(text != NULL); - - i64 cols = 0; - i64 n = 0; - - for (i64 i = 0; i < num_chars; ++i) { - if (text[i] <= ' ') { - if (text[i] == '\n') { - if (cols < n) - cols = n; - n = 0; - } else if (text[i] == '\b' && i > 0) { - if (cols < n) - cols = n; - n -= char_width(text[i - 1]) + char_spacing(num_chars, text, i - 1); - } else if (text[i] == '\r') { - if (cols < n) - cols = n; - n = 0; - } else - n += char_width(' ') + char_spacing(num_chars, text, i); - continue; - } - n += char_width(text[i]) + char_spacing(num_chars, text, i); - } - - if (cols < n) - cols = n; - - return cols; -} - -i64 enum_text_rows(i64 num_chars, c32 *text) { - assert(text != NULL); - - i64 rows = 0; - - for (i64 i = 0; i <= num_chars; ++i) - if (i == num_chars || text[i] == '\n') { - if (rows > 0) - ++rows; - rows += CHAR_NUM_BITS_Y; - } - - return rows; -} - -void print_text(u32 color, f64 x0, f64 y0, f64 scale_x, f64 scale_y, i64 num_chars, c32 *text) { - assert(text != NULL); - - f64 x = x0; - f64 y = y0; - - f64 kx = scale_x; - f64 h = scale_y * CHAR_NUM_BITS_Y; - - for (i64 n = 0; n < num_chars; ++n) { - if (text[n] <= ' ') { - if (text[n] == '\n') { - x = x0; - y += scale_y * (CHAR_NUM_BITS_Y + 1); - } - else if (text[n] == '\b' && n > 0) - x -= kx * (char_width(text[n - 1]) + char_spacing(num_chars, text, n - 1)); - else if (text[n] == '\r') - x = x0; - else - x += kx * (char_width(' ') + char_spacing(num_chars, text, n)); - continue; - } - - i64 num_cols = char_width(text[n]); - f64 w = num_cols * kx; - - i64 i0 = (i64) floor(x + .5); - i64 i1 = (i64) floor(x + w + .5); - i64 j0 = (i64) floor(y + .5); - i64 j1 = (i64) floor(y + h + .5); - - for (i64 i = i0; i < i1; ++i) { - if (i < 0) continue; - if (i >= platform.frame_width) break; - - i64 column = ((i - i0) * num_cols) / (i1 - i0); - i64 offset = char_column_offset(text[n], column); - - for (i64 j = j0; j < j1; ++j) { - if (j < 0) continue; - if (j >= platform.frame_height) break; - - i64 row = ((j - j0) * CHAR_NUM_BITS_Y) / (j1 - j0); - - if (char_bit(offset, row)) - platform.pixels[j * platform.frame_width + i] = color; - } - } - - x += kx * (num_cols + char_spacing(num_chars, text, n)); - } -} - -void draw_panel(u32 op, u32 color, f64 x0, f64 y0, f64 width, f64 height) { - i64 i0 = (i64) floor(x0 + .5); - i64 j0 = (i64) floor(y0 + .5); - i64 i1 = (i64) floor(x0 + width + .5); - i64 j1 = (i64) floor(y0 + height + .5); - - if (i0 < 0) i0 = 0; - if (j0 < 0) j0 = 0; - if (i1 >= platform.frame_width) i1 = platform.frame_width - 1; - if (j1 >= platform.frame_height) j1 = platform.frame_height - 1; - - for (i64 j = j0; j < j1; ++j) - for (i64 i = i0; i < i1; ++i) - if (op == OP_XOR) - platform.pixels[j * platform.frame_width + i] ^= color; - else - platform.pixels[j * platform.frame_width + i] = color; -} - -void draw_text_area(u32 color, f64 x0, f64 y0, f64 width, f64 height, f64 max_scale_x, f64 max_scale_y, i64 num_chars, c32 *text) { - assert(max_scale_x > 1e-6); - assert(max_scale_y > 1e-6); - - i64 num_columns = enum_text_columns(num_chars, text); - i64 num_rows = enum_text_rows(num_chars, text); - - f64 scale_x = width / num_columns; - f64 scale_y = height / num_rows; - - f64 kx = scale_x / max_scale_x; - f64 ky = scale_y / max_scale_y; - - f64 k = kx < ky ? kx : ky; - - kx = k * max_scale_x; - ky = k * max_scale_y; - - print_text(color, x0, y0, kx, ky, num_chars, text); -} - -void draw_text_cursor(u32 color, f64 x0, f64 y0, f64 width, f64 height, f64 max_scale_x, f64 max_scale_y, i64 cursor, i64 selection, i64 num_chars, c32 *text) { - assert(max_scale_x > 1e-6); - assert(max_scale_y > 1e-6); - - i64 num_columns = enum_text_columns(num_chars, text); - i64 num_rows = enum_text_rows(num_chars, text); - i64 cursor_x = text_cursor(cursor, text); - i64 cursor_y = enum_text_rows(cursor, text); - f64 scale_x = width / num_columns; - f64 scale_y = height / num_rows; - - f64 kx = scale_x / max_scale_x; - f64 ky = scale_y / max_scale_y; - - f64 k = kx < ky ? kx : ky; - - kx = k * max_scale_x; - ky = k * max_scale_y; - - if (selection != 0) { - i64 selection_x, selection_y; - - if (selection > 0) { - selection_x = text_cursor(cursor + selection, text); - selection_y = enum_text_rows(cursor + selection, text); - } else { - selection_x = cursor_x; - selection_y = cursor_y; - cursor_x = text_cursor(cursor + selection, text); - cursor_y = enum_text_rows(cursor + selection, text); - } - - if (cursor_y == selection_y) - draw_panel(OP_XOR, color, - x0 + kx * cursor_x, - y0 + ky * cursor_y - ky * (CHAR_NUM_BITS_Y + 1), - kx * (selection_x - cursor_x), - ky * (CHAR_NUM_BITS_Y + 1) - ); - else { - draw_panel(OP_XOR, color, - x0 + kx * cursor_x, - y0 + ky * cursor_y - ky * (CHAR_NUM_BITS_Y + 1), - kx * (num_columns - cursor_x), - ky * (CHAR_NUM_BITS_Y + 1) - ); - for (i64 j = cursor_y + CHAR_NUM_BITS_Y + 1; j < selection_y; j += CHAR_NUM_BITS_Y + 1) - draw_panel(OP_XOR, color, - x0, - y0 + ky * j - ky * (CHAR_NUM_BITS_Y + 1), - kx * num_columns, - ky * (CHAR_NUM_BITS_Y + 1) - ); - draw_panel(OP_XOR, color, - x0, - y0 + ky * selection_y - ky * (CHAR_NUM_BITS_Y + 1), - kx * selection_x, - ky * (CHAR_NUM_BITS_Y + 1) - ); - } - } else - draw_panel(OP_XOR, color, x0 + kx * cursor_x, y0 + ky * cursor_y - ky * CHAR_NUM_BITS_Y, kx * .5, ky * (CHAR_NUM_BITS_Y - 1)); -} +#include "../graphics.c" i32 main(i32 argc, c8 **argv) { (void) argc; -- cgit v1.2.3