nesemu/gui/window.c

//
// Created by william on 17/05/24.
//

#include <SDL.h>
#include "window.h"
#include "log.h"

NesSdlContext window_init(char *title, int width, int height, int scale) {
    NesSdlContext context;

    int renderer_flags = SDL_RENDERER_ACCELERATED;
    int window_flags = 0;

    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
        log_error("Couldn't initialize SDL: %s", SDL_GetError());
        exit(-1);
    }

    int actual_width = width * scale;
    int actual_height = height * scale;
    context.window = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, actual_width,
                                      actual_height, window_flags);
    if (!context.window) {
        log_error("Failed to open %d x %d SDL window: %s", actual_width, actual_height, SDL_GetError());
        exit(-1);
    }

    context.renderer = SDL_CreateRenderer(context.window, -1, renderer_flags);
    if (!context.renderer) {
        log_error("Failed to create renderer: %s", SDL_GetError());
        SDL_DestroyWindow(context.window);
        exit(-1);
    }

    return context;
}

void window_uninit(NesSdlContext context) {
    SDL_DestroyRenderer(context.renderer);
    SDL_DestroyWindow(context.window);
}

//NesWindow window_init(int width, int height, char *title) {
//    NesWindow win;
//    win.width = width;
//    win.height = height;
//
//    int renderer_flags = SDL_RENDERER_ACCELERATED;
//    int window_flags = 0;
//
//    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
//        log_error("Couldn't initialize SDL: %s", SDL_GetError());
//        exit(-1);
//    }
//
//    win.window = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, win.width, win.height,
//                                  window_flags);
//    if (!win.window) {
//        log_error("Failed to open %d x %d sdl_window: %s", win.width, win.height, SDL_GetError());
//        exit(-1);
//    }
//
//    win.renderer = SDL_CreateRenderer(win.window, -1, renderer_flags);
//    if (!win.renderer) {
//        log_error("Failed to create renderer: %s\n", SDL_GetError());
//        exit(-1);
//    }
//
//    return win;
//}
//
//void window_uninit(NesWindow *window) {
//    SDL_DestroyRenderer(window->renderer);
//    SDL_DestroyWindow(window->window);
//}
//
//void window_render(NesWindow *window) {
//    SDL_RenderClear(window->renderer);
//
////    for (int y = 0; y < window->canvas.height; y++) {
////        for (int x = 0; x < window->canvas.width; x++) {
////            int pixel_index = x + y * window->canvas.width;
////            Pixel pixel = window->canvas.pixels[pixel_index];
////
////            SDL_SetRenderDrawColor(window->renderer, pixel.r, pixel.g, pixel.b, 255);
////
////            for (int i = 0; i < window->scaling; i++) {
////                for (int j = 0; j < window->scaling; j++) {
////                    int scaled_x = x * window->scaling + i;
////                    int scaled_y = y * window->scaling + j;
////                    SDL_RenderDrawPoint(window->renderer, scaled_x, scaled_y);
////                }
////            }
////        }
////    }
//}
//
//void window_present(NesWindow *window) {
//    SDL_RenderPresent(window->renderer);
//}