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#include <SDL2/SDL.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include "main.h"
#include "ppu/ppu.h"
#include "ppu/consts.h"
#include "ppu/internals.h"
#include "ppusim/mem.h"
#include "ppusim/sim.h"
#include "ppusim/work.h"
#include "tilemap.h"
SDL_Window *g_hh_window = NULL;
SDL_Renderer *g_hh_renderer = NULL;
uint32_t* g_hh_tilemap_rom = NULL;
void hh_ppu_init() {
SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS);
g_hh_window = SDL_CreateWindow("ppusim", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, HH_PPU_SCREEN_WIDTH * HH_PPUSIM_UPSCALE_FACTOR,
HH_PPU_SCREEN_HEIGHT * HH_PPUSIM_UPSCALE_FACTOR, SDL_WINDOW_SHOWN);
g_hh_renderer = SDL_CreateRenderer(g_hh_window, -1, SDL_RENDERER_ACCELERATED);
g_hh_ppusim_core_count = SDL_GetCPUCount();
g_hh_ppusim_threads = malloc(sizeof(pthread_t) * g_hh_ppusim_core_count);
g_hh_ppusim_vram = malloc(sizeof(hh_ppu_data_t) * 0xffff);
memset(g_hh_ppusim_vram, 0x0000, 0xffff);
hh_ppusim_load_tilemap();
hh_ppu_load_tilemap();
}
void hh_ppusim_load_tilemap() {
FILE* fp = fopen("static/tilemap.bin", "rb");
fseek(fp, 0, SEEK_END);
size_t file_size = ftell(fp);
rewind(fp);
g_hh_tilemap_rom = malloc(file_size);
fread(g_hh_tilemap_rom, file_size, 1, fp);
fclose(fp);
}
void hh_ppu_deinit() {
free(g_hh_ppusim_threads);
free(g_hh_ppusim_vram);
free(g_hh_tilemap_rom);
SDL_DestroyRenderer(g_hh_renderer);
SDL_DestroyWindow(g_hh_window);
SDL_Quit();
}
void hh_loop() {
SDL_Event e;
while (g_hh_run) {
uint32_t start = SDL_GetTicks();
while (SDL_PollEvent(&e))
if (e.type == SDL_QUIT) exit(0);
hh_ppu_vblank_interrupt();
SDL_RenderClear(g_hh_renderer);
hh_ppusim_draw_frame(g_hh_renderer);
SDL_SetRenderDrawColor(g_hh_renderer, 0, 0, 0, 255);
SDL_RenderPresent(g_hh_renderer);
uint32_t end = SDL_GetTicks();
int wait_for = 1000 / HH_PPUSIM_FRAMERATE - (end - start);
if (wait_for > 0) SDL_Delay(wait_for);
}
}
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