stos: xt: Add flanterm port

Signed-off-by: Chloe M. <chloe@mensia.org>
2026-06-22 03:40:17 +00:00
parent 9e98bae25b
commit b2e4f35e9f
9 changed files with 3312 additions and 0 deletions
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/* Copyright (C) 2022-2026 Mintsuki and contributors.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLANTERM_PRIVATE_H
+#define FLANTERM_PRIVATE_H 1
+
+#ifndef FLANTERM_IN_FLANTERM
+#error "Do not use flanterm_private.h. Use interfaces defined in flanterm.h only."
+#endif
+
+#include <stdef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FLANTERM_MAX_ESC_VALUES 16
+
+struct flanterm_context {
+    /* internal use */
+
+    USIZE tab_size;
+    bool autoflush;
+    bool cursor_enabled;
+    bool scroll_enabled;
+    bool control_sequence;
+    bool escape;
+    bool osc;
+    bool osc_escape;
+    bool rrr;
+    bool discard_next;
+    bool bold;
+    bool bg_bold;
+    bool reverse_video;
+    bool dec_private;
+    bool insert_mode;
+    bool csi_unhandled;
+    UQUAD code_point;
+    USIZE unicode_remaining;
+    UCHAR g_select;
+    UCHAR charsets[2];
+    USIZE current_charset;
+    USIZE escape_offset;
+    USIZE esc_values_i;
+    USIZE saved_cursor_x;
+    USIZE saved_cursor_y;
+    USIZE current_primary;
+    USIZE current_bg;
+    USIZE scroll_top_margin;
+    USIZE scroll_bottom_margin;
+    ULONG esc_values[FLANTERM_MAX_ESC_VALUES];
+    UQUAD oob_output;
+    bool saved_state_bold;
+    bool saved_state_bg_bold;
+    bool saved_state_reverse_video;
+    USIZE saved_state_current_charset;
+    USIZE saved_state_current_primary;
+    USIZE saved_state_current_bg;
+
+    /* to be set by backend */
+
+    USIZE rows, cols;
+
+    void (*raw_putchar)(struct flanterm_context *, UCHAR c);
+    void (*clear)(struct flanterm_context *, bool move);
+    void (*set_cursor_pos)(struct flanterm_context *, USIZE x, USIZE y);
+    void (*get_cursor_pos)(struct flanterm_context *, USIZE *x, USIZE *y);
+    void (*set_text_fg)(struct flanterm_context *, USIZE fg);
+    void (*set_text_bg)(struct flanterm_context *, USIZE bg);
+    void (*set_text_fg_bright)(struct flanterm_context *, USIZE fg);
+    void (*set_text_bg_bright)(struct flanterm_context *, USIZE bg);
+    void (*set_text_fg_rgb)(struct flanterm_context *, ULONG fg);
+    void (*set_text_bg_rgb)(struct flanterm_context *, ULONG bg);
+    void (*set_text_fg_default)(struct flanterm_context *);
+    void (*set_text_bg_default)(struct flanterm_context *);
+    void (*set_text_fg_default_bright)(struct flanterm_context *);
+    void (*set_text_bg_default_bright)(struct flanterm_context *);
+    void (*move_character)(struct flanterm_context *, USIZE new_x, USIZE new_y, USIZE old_x, USIZE old_y);
+    void (*scroll)(struct flanterm_context *);
+    void (*revscroll)(struct flanterm_context *);
+    void (*swap_palette)(struct flanterm_context *);
+    void (*save_state)(struct flanterm_context *);
+    void (*restore_state)(struct flanterm_context *);
+    void (*double_buffer_flush)(struct flanterm_context *);
+    void (*full_refresh)(struct flanterm_context *);
+    void (*deinit)(struct flanterm_context *, void (*)(void *, USIZE));
+
+    /* to be set by client */
+
+    void (*callback)(struct flanterm_context *, UQUAD, UQUAD, UQUAD, UQUAD);
+};
+
+void flanterm_context_reinit(struct flanterm_context *ctx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif