···
+
static const uint32_t col256[] = {
+
0x000000, 0x00005f, 0x000087, 0x0000af, 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f,
+
0x005f87, 0x005faf, 0x005fd7, 0x005fff, 0x008700, 0x00875f, 0x008787, 0x0087af,
+
0x0087d7, 0x0087ff, 0x00af00, 0x00af5f, 0x00af87, 0x00afaf, 0x00afd7, 0x00afff,
+
0x00d700, 0x00d75f, 0x00d787, 0x00d7af, 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f,
+
0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff, 0x5f0000, 0x5f005f, 0x5f0087, 0x5f00af,
+
0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f, 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff,
+
0x5f8700, 0x5f875f, 0x5f8787, 0x5f87af, 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f,
+
0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff, 0x5fd700, 0x5fd75f, 0x5fd787, 0x5fd7af,
+
0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f, 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff,
+
0x870000, 0x87005f, 0x870087, 0x8700af, 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f,
+
0x875f87, 0x875faf, 0x875fd7, 0x875fff, 0x878700, 0x87875f, 0x878787, 0x8787af,
+
0x8787d7, 0x8787ff, 0x87af00, 0x87af5f, 0x87af87, 0x87afaf, 0x87afd7, 0x87afff,
+
0x87d700, 0x87d75f, 0x87d787, 0x87d7af, 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f,
+
0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff, 0xaf0000, 0xaf005f, 0xaf0087, 0xaf00af,
+
0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f, 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff,
+
0xaf8700, 0xaf875f, 0xaf8787, 0xaf87af, 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f,
+
0xafaf87, 0xafafaf, 0xafafd7, 0xafafff, 0xafd700, 0xafd75f, 0xafd787, 0xafd7af,
+
0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f, 0xafff87, 0xafffaf, 0xafffd7, 0xafffff,
+
0xd70000, 0xd7005f, 0xd70087, 0xd700af, 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f,
+
0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff, 0xd78700, 0xd7875f, 0xd78787, 0xd787af,
+
0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f, 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff,
+
0xd7d700, 0xd7d75f, 0xd7d787, 0xd7d7af, 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f,
+
0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff, 0xff0000, 0xff005f, 0xff0087, 0xff00af,
+
0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f, 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff,
+
0xff8700, 0xff875f, 0xff8787, 0xff87af, 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f,
+
0xffaf87, 0xffafaf, 0xffafd7, 0xffafff, 0xffd700, 0xffd75f, 0xffd787, 0xffd7af,
+
0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f, 0xffff87, 0xffffaf, 0xffffd7, 0xffffff,
+
0x080808, 0x121212, 0x1c1c1c, 0x262626, 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e,
+
0x585858, 0x626262, 0x6c6c6c, 0x767676, 0x808080, 0x8a8a8a, 0x949494, 0x9e9e9e,
+
0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6, 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee
+
// Tries to implement this standard for terminfo
+
// https://man7.org/linux/man-pages/man4/console_codes.4.html
+
#define CHARSET_DEFAULT 0
+
#define CHARSET_DEC_SPECIAL 1
+
void term_context_reinit(struct term_context *ctx) {
+
ctx->scroll_enabled = true;
+
ctx->escape_offset = 0;
+
ctx->control_sequence = false;
+
ctx->discard_next = false;
+
ctx->reverse_video = false;
+
ctx->dec_private = false;
+
ctx->saved_cursor_x = 0;
+
ctx->saved_cursor_y = 0;
+
ctx->current_primary = (size_t)-1;
+
ctx->insert_mode = false;
+
ctx->scroll_top_margin = 0;
+
ctx->scroll_bottom_margin = ctx->rows;
+
ctx->current_charset = 0;
+
ctx->charsets[0] = CHARSET_DEFAULT;
+
ctx->charsets[1] = CHARSET_DEC_SPECIAL;
+
static void term_putchar(struct term_context *ctx, uint8_t c);
+
void term_write(struct term_context *ctx, const char *buf, size_t count) {
+
for (size_t i = 0; i < count; i++) {
+
term_putchar(ctx, buf[i]);
+
ctx->double_buffer_flush(ctx);
+
static void sgr(struct term_context *ctx) {
+
if (!ctx->esc_values_i)
+
for (; i < ctx->esc_values_i; i++) {
+
if (ctx->esc_values[i] == 0) {
+
if (ctx->reverse_video) {
+
ctx->reverse_video = false;
+
ctx->swap_palette(ctx);
+
ctx->current_primary = (size_t)-1;
+
ctx->set_text_bg_default(ctx);
+
ctx->set_text_fg_default(ctx);
+
else if (ctx->esc_values[i] == 1) {
+
if (ctx->current_primary != (size_t)-1) {
+
if (!ctx->reverse_video) {
+
ctx->set_text_fg_bright(ctx, ctx->current_primary);
+
ctx->set_text_bg_bright(ctx, ctx->current_primary);
+
else if (ctx->esc_values[i] == 22) {
+
if (ctx->current_primary != (size_t)-1) {
+
if (!ctx->reverse_video) {
+
ctx->set_text_fg(ctx, ctx->current_primary);
+
ctx->set_text_bg(ctx, ctx->current_primary);
+
else if (ctx->esc_values[i] >= 30 && ctx->esc_values[i] <= 37) {
+
ctx->current_primary = ctx->esc_values[i] - offset;
+
if (ctx->reverse_video) {
+
if (ctx->bold && !ctx->reverse_video) {
+
ctx->set_text_fg_bright(ctx, ctx->esc_values[i] - offset);
+
ctx->set_text_fg(ctx, ctx->esc_values[i] - offset);
+
else if (ctx->esc_values[i] >= 40 && ctx->esc_values[i] <= 47) {
+
if (ctx->reverse_video) {
+
if (ctx->bold && ctx->reverse_video) {
+
ctx->set_text_bg_bright(ctx, ctx->esc_values[i] - offset);
+
ctx->set_text_bg(ctx, ctx->esc_values[i] - offset);
+
else if (ctx->esc_values[i] >= 90 && ctx->esc_values[i] <= 97) {
+
ctx->current_primary = ctx->esc_values[i] - offset;
+
if (ctx->reverse_video) {
+
ctx->set_text_fg_bright(ctx, ctx->esc_values[i] - offset);
+
else if (ctx->esc_values[i] >= 100 && ctx->esc_values[i] <= 107) {
+
if (ctx->reverse_video) {
+
ctx->set_text_bg_bright(ctx, ctx->esc_values[i] - offset);
+
else if (ctx->esc_values[i] == 39) {
+
ctx->current_primary = (size_t)-1;
+
if (ctx->reverse_video) {
+
ctx->swap_palette(ctx);
+
ctx->set_text_fg_default(ctx);
+
if (ctx->reverse_video) {
+
ctx->swap_palette(ctx);
+
else if (ctx->esc_values[i] == 49) {
+
if (ctx->reverse_video) {
+
ctx->swap_palette(ctx);
+
ctx->set_text_bg_default(ctx);
+
if (ctx->reverse_video) {
+
ctx->swap_palette(ctx);
+
else if (ctx->esc_values[i] == 7) {
+
if (!ctx->reverse_video) {
+
ctx->reverse_video = true;
+
ctx->swap_palette(ctx);
+
else if (ctx->esc_values[i] == 27) {
+
if (ctx->reverse_video) {
+
ctx->reverse_video = false;
+
ctx->swap_palette(ctx);
+
else if (ctx->esc_values[i] == 38 || ctx->esc_values[i] == 48) {
+
bool fg = ctx->esc_values[i] == 38;
+
if (i >= ctx->esc_values_i) {
+
switch (ctx->esc_values[i]) {
+
if (i + 3 >= ctx->esc_values_i) {
+
uint32_t rgb_value = 0;
+
rgb_value |= ctx->esc_values[i + 1] << 16;
+
rgb_value |= ctx->esc_values[i + 2] << 8;
+
rgb_value |= ctx->esc_values[i + 3];
+
(fg ? ctx->set_text_fg_rgb : ctx->set_text_bg_rgb)(ctx, rgb_value);
+
case 5: { // 256 colors
+
if (i + 1 >= ctx->esc_values_i) {
+
uint32_t col = ctx->esc_values[i + 1];
+
(fg ? ctx->set_text_fg : ctx->set_text_bg)(ctx, col);
+
(fg ? ctx->set_text_fg_bright : ctx->set_text_bg_bright)(ctx, col - 8);
+
uint32_t rgb_value = col256[col - 16];
+
(fg ? ctx->set_text_fg_rgb : ctx->set_text_bg_rgb)(ctx, rgb_value);
+
static void dec_private_parse(struct term_context *ctx, uint8_t c) {
+
ctx->dec_private = false;
+
if (ctx->esc_values_i == 0) {
+
switch (ctx->esc_values[0]) {
+
ctx->enable_cursor(ctx);
+
ctx->disable_cursor(ctx);
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_DEC, ctx->esc_values_i, (uintptr_t)ctx->esc_values, c);
+
static void linux_private_parse(struct term_context *ctx) {
+
if (ctx->esc_values_i == 0) {
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_LINUX, ctx->esc_values_i, (uintptr_t)ctx->esc_values, 0);
+
static void mode_toggle(struct term_context *ctx, uint8_t c) {
+
if (ctx->esc_values_i == 0) {
+
switch (ctx->esc_values[0]) {
+
ctx->insert_mode = set; return;
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_MODE, ctx->esc_values_i, (uintptr_t)ctx->esc_values, c);
+
static void control_sequence_parse(struct term_context *ctx, uint8_t c) {
+
if (ctx->escape_offset == 2) {
+
ctx->discard_next = true;
+
ctx->dec_private = true;
+
if (c >= '0' && c <= '9') {
+
if (ctx->esc_values_i == TERM_MAX_ESC_VALUES) {
+
ctx->esc_values[ctx->esc_values_i] *= 10;
+
ctx->esc_values[ctx->esc_values_i] += c - '0';
+
if (ctx->rrr == true) {
+
if (ctx->esc_values_i == TERM_MAX_ESC_VALUES) {
+
ctx->esc_values[ctx->esc_values_i] = 0;
+
case 'J': case 'K': case 'q':
+
esc_default = 0; break;
+
esc_default = 1; break;
+
for (size_t i = ctx->esc_values_i; i < TERM_MAX_ESC_VALUES; i++) {
+
ctx->esc_values[i] = esc_default;
+
if (ctx->dec_private == true) {
+
dec_private_parse(ctx, c);
+
bool r = ctx->scroll_enabled;
+
ctx->scroll_enabled = false;
+
ctx->get_cursor_pos(ctx, &x, &y);
+
if (ctx->esc_values[0] > y)
+
ctx->esc_values[0] = y;
+
size_t dest_y = y - ctx->esc_values[0];
+
bool will_be_in_scroll_region = false;
+
if ((ctx->scroll_top_margin >= dest_y && ctx->scroll_top_margin <= orig_y)
+
|| (ctx->scroll_bottom_margin >= dest_y && ctx->scroll_bottom_margin <= orig_y)) {
+
will_be_in_scroll_region = true;
+
if (will_be_in_scroll_region && dest_y < ctx->scroll_top_margin) {
+
dest_y = ctx->scroll_top_margin;
+
ctx->set_cursor_pos(ctx, x, dest_y);
+
if (y + ctx->esc_values[0] > ctx->rows - 1)
+
ctx->esc_values[0] = (ctx->rows - 1) - y;
+
size_t dest_y = y + ctx->esc_values[0];
+
bool will_be_in_scroll_region = false;
+
if ((ctx->scroll_top_margin >= orig_y && ctx->scroll_top_margin <= dest_y)
+
|| (ctx->scroll_bottom_margin >= orig_y && ctx->scroll_bottom_margin <= dest_y)) {
+
will_be_in_scroll_region = true;
+
if (will_be_in_scroll_region && dest_y >= ctx->scroll_bottom_margin) {
+
dest_y = ctx->scroll_bottom_margin - 1;
+
ctx->set_cursor_pos(ctx, x, dest_y);
+
if (x + ctx->esc_values[0] > ctx->cols - 1)
+
ctx->esc_values[0] = (ctx->cols - 1) - x;
+
ctx->set_cursor_pos(ctx, x + ctx->esc_values[0], y);
+
if (ctx->esc_values[0] > x)
+
ctx->esc_values[0] = x;
+
ctx->set_cursor_pos(ctx, x - ctx->esc_values[0], y);
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_PRIVATE_ID, 0, 0, 0);
+
ctx->esc_values[0] -= 1;
+
if (ctx->esc_values[0] >= ctx->rows)
+
ctx->esc_values[0] = ctx->rows - 1;
+
ctx->set_cursor_pos(ctx, x, ctx->esc_values[0]);
+
ctx->esc_values[0] -= 1;
+
if (ctx->esc_values[0] >= ctx->cols)
+
ctx->esc_values[0] = ctx->cols - 1;
+
ctx->set_cursor_pos(ctx, ctx->esc_values[0], y);
+
ctx->esc_values[0] -= 1;
+
ctx->esc_values[1] -= 1;
+
if (ctx->esc_values[1] >= ctx->cols)
+
ctx->esc_values[1] = ctx->cols - 1;
+
if (ctx->esc_values[0] >= ctx->rows)
+
ctx->esc_values[0] = ctx->rows - 1;
+
ctx->set_cursor_pos(ctx, ctx->esc_values[1], ctx->esc_values[0]);
+
switch (ctx->esc_values[0]) {
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_STATUS_REPORT, 0, 0, 0);
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_POS_REPORT, x + 1, y + 1, 0);
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_KBD_LEDS, ctx->esc_values[0], 0, 0);
+
switch (ctx->esc_values[0]) {
+
size_t rows_remaining = ctx->rows - (y + 1);
+
size_t cols_diff = ctx->cols - (x + 1);
+
size_t to_clear = rows_remaining * ctx->cols + cols_diff;
+
for (size_t i = 0; i < to_clear; i++) {
+
ctx->raw_putchar(ctx, ' ');
+
ctx->set_cursor_pos(ctx, x, y);
+
ctx->set_cursor_pos(ctx, 0, 0);
+
for (size_t yc = 0; yc < ctx->rows; yc++) {
+
for (size_t xc = 0; xc < ctx->cols; xc++) {
+
ctx->raw_putchar(ctx, ' ');
+
if (xc == x && yc == y) {
+
ctx->set_cursor_pos(ctx, x, y);
+
ctx->clear(ctx, false);
+
for (size_t i = ctx->cols - 1; ; i--) {
+
ctx->move_character(ctx, i + ctx->esc_values[0], y, i, y);
+
ctx->set_cursor_pos(ctx, i, y);
+
ctx->raw_putchar(ctx, ' ');
+
ctx->set_cursor_pos(ctx, x, y);
+
for (size_t i = x + ctx->esc_values[0]; i < ctx->cols; i++)
+
ctx->move_character(ctx, i - ctx->esc_values[0], y, i, y);
+
ctx->set_cursor_pos(ctx, ctx->cols - ctx->esc_values[0], y);
+
for (size_t i = 0; i < ctx->esc_values[0]; i++)
+
ctx->raw_putchar(ctx, ' ');
+
ctx->set_cursor_pos(ctx, x, y);
+
ctx->get_cursor_pos(ctx, &ctx->saved_cursor_x, &ctx->saved_cursor_y);
+
ctx->set_cursor_pos(ctx, ctx->saved_cursor_x, ctx->saved_cursor_y);
+
switch (ctx->esc_values[0]) {
+
for (size_t i = x; i < ctx->cols; i++)
+
ctx->raw_putchar(ctx, ' ');
+
ctx->set_cursor_pos(ctx, x, y);
+
ctx->set_cursor_pos(ctx, 0, y);
+
for (size_t i = 0; i < x; i++)
+
ctx->raw_putchar(ctx, ' ');
+
ctx->set_cursor_pos(ctx, 0, y);
+
for (size_t i = 0; i < ctx->cols; i++)
+
ctx->raw_putchar(ctx, ' ');
+
ctx->set_cursor_pos(ctx, x, y);
+
ctx->scroll_top_margin = 0;
+
ctx->scroll_bottom_margin = ctx->rows;
+
if (ctx->esc_values_i > 0) {
+
ctx->scroll_top_margin = ctx->esc_values[0] - 1;
+
if (ctx->esc_values_i > 1) {
+
ctx->scroll_bottom_margin = ctx->esc_values[1];
+
if (ctx->scroll_top_margin >= ctx->rows
+
|| ctx->scroll_bottom_margin > ctx->rows
+
|| ctx->scroll_top_margin >= (ctx->scroll_bottom_margin - 1)) {
+
ctx->scroll_top_margin = 0;
+
ctx->scroll_bottom_margin = ctx->rows;
+
ctx->set_cursor_pos(ctx, 0, 0);
+
linux_private_parse(ctx);
+
ctx->scroll_enabled = r;
+
ctx->control_sequence = false;
+
static void restore_state(struct term_context *ctx) {
+
ctx->bold = ctx->saved_state_bold;
+
ctx->reverse_video = ctx->saved_state_reverse_video;
+
ctx->current_charset = ctx->saved_state_current_charset;
+
ctx->current_primary = ctx->saved_state_current_primary;
+
ctx->restore_state(ctx);
+
static void save_state(struct term_context *ctx) {
+
ctx->saved_state_bold = ctx->bold;
+
ctx->saved_state_reverse_video = ctx->reverse_video;
+
ctx->saved_state_current_charset = ctx->current_charset;
+
ctx->saved_state_current_primary = ctx->current_primary;
+
static void escape_parse(struct term_context *ctx, uint8_t c) {
+
if (ctx->control_sequence == true) {
+
control_sequence_parse(ctx, c);
+
if (ctx->csi == true) {
+
ctx->get_cursor_pos(ctx, &x, &y);
+
for (size_t i = 0; i < TERM_MAX_ESC_VALUES; i++)
+
ctx->esc_values[i] = 0;
+
ctx->control_sequence = true;
+
term_context_reinit(ctx);
+
if (y == ctx->scroll_bottom_margin - 1) {
+
ctx->set_cursor_pos(ctx, x, y);
+
ctx->set_cursor_pos(ctx, x, y + 1);
+
if (y == ctx->scroll_bottom_margin - 1) {
+
ctx->set_cursor_pos(ctx, 0, y);
+
ctx->set_cursor_pos(ctx, 0, y + 1);
+
if (y == ctx->scroll_top_margin) {
+
ctx->set_cursor_pos(ctx, 0, y);
+
ctx->set_cursor_pos(ctx, 0, y - 1);
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_PRIVATE_ID, 0, 0, 0);
+
ctx->g_select = c - '\'';
+
if (ctx->in_bootloader == true) {
+
ctx->raw_putchar(ctx, c);
+
static uint8_t dec_special_to_cp437(uint8_t c) {
+
static void term_putchar(struct term_context *ctx, uint8_t c) {
+
if (ctx->discard_next || (ctx->in_bootloader == false && (c == 0x18 || c == 0x1a))) {
+
ctx->discard_next = false;
+
ctx->control_sequence = false;
+
if (ctx->escape == true) {
+
ctx->charsets[ctx->g_select] = CHARSET_DEFAULT; break;
+
ctx->charsets[ctx->g_select] = CHARSET_DEC_SPECIAL; break;
+
ctx->get_cursor_pos(ctx, &x, &y);
+
ctx->escape_offset = 0;
+
if ((x / ctx->tab_size + 1) >= ctx->cols) {
+
ctx->set_cursor_pos(ctx, ctx->cols - 1, y);
+
ctx->set_cursor_pos(ctx, (x / ctx->tab_size + 1) * ctx->tab_size, y);
+
if (y == ctx->scroll_bottom_margin - 1) {
+
ctx->set_cursor_pos(ctx, 0, y);
+
ctx->set_cursor_pos(ctx, 0, y + 1);
+
ctx->set_cursor_pos(ctx, x - 1, y);
+
ctx->set_cursor_pos(ctx, 0, y);
+
// The bell is handled by the kernel
+
if (ctx->callback != NULL) {
+
ctx->callback(ctx, TERM_CB_BELL, 0, 0, 0);
+
ctx->current_charset = 1;
+
ctx->current_charset = 0;
+
if (ctx->insert_mode == true) {
+
for (size_t i = ctx->cols - 1; ; i--) {
+
ctx->move_character(ctx, i + 1, y, i, y);
+
// Translate character set
+
switch (ctx->charsets[ctx->current_charset]) {
+
case CHARSET_DEC_SPECIAL:
+
c = dec_special_to_cp437(c);
+
ctx->raw_putchar(ctx, c);
pci.express