nesemu/gui/gui.c

//
// Created by william on 16/05/24.
//

#include <assert.h>
#include "log.h"
#include "gui.h"
#include "window.h"

typedef struct nes_gui {
    NesWindow main_window;
    NesWindow debug_pattern_window;
} NesGui;
NesGui gui;

void gui_init() {
    gui.main_window = window_init(WINDOW_MAIN_WIDTH, WINDOW_MAIN_HEIGHT, WINDOW_MAIN_SCALING, "NES Emulator");
    gui.debug_pattern_window = window_init(WINDOW_PATTERN_WIDTH, WINDOW_PATTERN_HEIGHT, WINDOW_PATTERN_SCALING,
                                           "Pattern Table");
}

void gui_uninit() {
    window_uninit(&gui.main_window);
    window_uninit(&gui.debug_pattern_window);
}

int gui_input() {
    SDL_Event event;

    while (SDL_PollEvent(&event)) {
        if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE) {
            return -1;
        }
    }

    return 1;
}

void gui_render() {
    window_render(&gui.main_window);
    window_render(&gui.debug_pattern_window);
}

void gui_present() {
    window_present(&gui.main_window);
    window_present(&gui.debug_pattern_window);
}

void gui_delay() {
    SDL_Delay(16);
}

Canvas *gui_get_canvas(char win_id) {
    NesWindow *window;

    switch (win_id) {
        case WINDOW_ID_MAIN:
            window = &gui.main_window;
            break;
        case WINDOW_ID_PATTERN:
            window = &gui.debug_pattern_window;
            break;
        default:
            log_error("Couldn't get canvas for window ID '%d' because it doesn't exists", win_id);
            assert(false);
    }

    return &window->canvas;
}