nesemu/debugger/debugger.c

//
// Created by william on 1/6/24.
//

#include <curses.h>
#include <panel.h>
#include <stdlib.h>
#include "debugger.h"
#include "memory_view.h"
#include "program_view.h"
#include "keys.h"
#include "cpu_view.h"
#include "ppu_view.h"

void debugger_create_window() {
    setenv("TERMINFO", "/usr/share/terminfo", 1);
    setenv("TERM", "xterm", 1);

    initscr();
    raw();
    noecho();
    curs_set(0);
    keypad(stdscr, true);
}

LinkedList debugger_create_interactive_windows(System *system) {
    LinkedList interactive_windows;
    InteractWindow *window;

    interactive_windows = linked_list_init(true);

    window = malloc(sizeof(InteractWindow));
    mv_init(window, system->ram, 0, 0);
    linked_list_add(&interactive_windows, window);

    window = malloc(sizeof(InteractWindow));
    pv_init(window, system, MEMORY_VIEW_WIDTH, 0);
    linked_list_add(&interactive_windows, window);

    return interactive_windows;
}

void debugger_uninit_interactive_windows(LinkedList *windows) {
    linked_list_cursor_reset(windows);
    InteractWindow *window = windows->current->data;

    for (int i = 0; i < windows->size; i++) {
        window_inter_deinit(window);
        window = linked_list_next(windows)->data;
    }

    linked_list_uninit(windows);
}

void start_debugger(System *system) {
    CpuView *cpu_view;
    PpuView *ppu_view;
    LinkedList interactive_windows;
    InteractWindow *current_window;

    debugger_create_window();

    interactive_windows = debugger_create_interactive_windows(system);
    current_window = interactive_windows.current->data;
    cpu_view = cv_init(&system->cpu, 0, MEMORY_VIEW_HEIGHT);
    ppu_view = ppv_init(&system->ppu, CPU_VIEW_WIDTH, MEMORY_VIEW_HEIGHT);

    cursor_enable(&current_window->cursor);

    update_panels();
    doupdate();

    int keycode;
    while ((keycode = getch()) != KEY_EXIT_DEBUGGER) {
        if (keycode == KEY_NEXT_VIEW) {

            cursor_disable(&current_window->cursor);
            current_window = linked_list_next(&interactive_windows)->data;
            cursor_enable(&current_window->cursor);
        } else if (keycode == KEY_VIEW_UP) {
            current_window->handle_cursor_move(current_window, 0, CURSOR_OFFSET_UP);
        } else if (keycode == KEY_VIEW_DOWN) {
            current_window->handle_cursor_move(current_window, 0, CURSOR_OFFSET_DOWN);
        } else if (keycode == KEY_VIEW_LEFT) {
            current_window->handle_cursor_move(current_window, CURSOR_OFFSET_LEFT, 0);
        } else if (keycode == KEY_VIEW_RIGHT) {
            current_window->handle_cursor_move(current_window, CURSOR_OFFSET_RIGHT, 0);
        } else {
            current_window->handle_key_down(current_window, keycode);
        }

        update_panels();
        doupdate();
    }

    debugger_uninit_interactive_windows(&interactive_windows);
    cv_uninit(cpu_view);
    ppv_uninit(ppu_view);

    endwin();
}