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#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <assert.h>
#include <ctype.h>
#include <Core/gb.h>
#include "get_image_for_rom.h"
#define LENGTH 60 * 10
struct local_data {
unsigned long frames;
bool running;
};
static char *async_input_callback(GB_gameboy_t *gb)
{
return NULL;
}
static void log_callback(GB_gameboy_t *gb, const char *string, GB_log_attributes attributes)
{
}
static void vblank(GB_gameboy_t *gb)
{
struct local_data *local_data = (struct local_data *)GB_get_user_data(gb);
if (local_data->frames == LENGTH) {
local_data->running = false;
}
else if (local_data->frames == LENGTH - 1) {
GB_set_rendering_disabled(gb, false);
}
local_data->frames++;
}
static uint32_t rgb_encode(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b)
{
return (b << 16) | (g << 8) | (r) | 0xFF000000;
}
int get_image_for_rom_common(GB_gameboy_t gb, const char *filename, uint32_t *output, uint8_t *cgb_flag) {
GB_set_vblank_callback(&gb, (GB_vblank_callback_t) vblank);
GB_set_pixels_output(&gb, output);
GB_set_rgb_encode_callback(&gb, rgb_encode);
GB_set_async_input_callback(&gb, async_input_callback);
GB_set_log_callback(&gb, log_callback);
GB_set_color_correction_mode(&gb, GB_COLOR_CORRECTION_EMULATE_HARDWARE);
size_t length = strlen(filename);
char extension[4] = {0,};
if (length > 4) {
if (filename[length - 4] == '.') {
extension[0] = tolower(filename[length - 3]);
extension[1] = tolower(filename[length - 2]);
extension[2] = tolower(filename[length - 1]);
}
}
if (strcmp(extension, "isx") == 0) {
if (GB_load_isx(&gb, filename)) {
GB_free(&gb);
return 1;
}
}
else if (GB_load_rom(&gb, filename)) {
GB_free(&gb);
return 1;
}
/* Run emulation */
struct local_data local_data = {0,};
GB_set_user_data(&gb, &local_data);
local_data.running = true;
local_data.frames = 0;
GB_set_rendering_disabled(&gb, true);
GB_set_turbo_mode(&gb, true, true);
*cgb_flag = GB_read_memory(&gb, 0x143) & 0xC0;
while (local_data.running) {
GB_run(&gb);
}
GB_free(&gb);
return 0;
}
int get_image_for_rom_alt(const char *filename, const unsigned char *buffer, size_t size, uint32_t *output, uint8_t *cgb_flag)
{
GB_gameboy_t gb;
GB_init(&gb, GB_MODEL_CGB_E);
GB_load_boot_rom_from_buffer(&gb, buffer, size);
return get_image_for_rom_common(gb, filename, output, cgb_flag);
}
int get_image_for_rom(const char *filename, const char *boot_path, uint32_t *output, uint8_t *cgb_flag)
{
GB_gameboy_t gb;
GB_init(&gb, GB_MODEL_CGB_E);
if (GB_load_boot_rom(&gb, boot_path)) {
GB_free(&gb);
return 1;
}
return get_image_for_rom_common(gb, filename, output, cgb_flag);
}
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