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#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdatomic.h>
#include <stdio.h>
#include <string.h>
#include <GLFW/glfw3.h>
#include "common/fmplayer_file.h"
#include "common/fmplayer_common.h"
#include "fmdriver/fmdriver_fmp.h"
#include "fmdriver/fmdriver_pmd.h"
#include "fmdriver/ppz8.h"
#include "libopna/opna.h"
#include "libopna/opnatimer.h"
#include "fmdsp/fmdsp.h"
#include "fmdsp/fmdsp_gl.h"
//#include "loadpcm.h"
#include "soundout.h"
union drivers {
struct driver_pmd pmd;
struct driver_fmp fmp;
};
enum driver_type {
DRIVER_PMD,
DRIVER_FMP,
};
#define DATADIR "/.local/share/fmplayer/"
enum {
SRATE = 55467,
BUFFRAMES = 1024,
PPZ8MIX = 0xa000
};
static struct {
struct opna opna;
uint8_t adpcmram[OPNA_ADPCM_RAM_SIZE];
struct opna_timer opna_timer;
struct ppz8 ppz8;
struct fmdriver_work work;
struct fmdsp fmdsp;
struct fmdsp_font font98;
uint8_t font98data[FONT_ROM_FILESIZE];
uint8_t vram[PC98_W*PC98_H];
char drum_rom[OPNA_ROM_SIZE];
bool drum_rom_loaded;
char adpcm_ram[OPNA_ADPCM_RAM_SIZE];
struct fmplayer_file *fmfile;
int16_t buf[BUFFRAMES*2];
struct sound_state *ss;
atomic_flag at_fftdata_flag;
struct fmplayer_fft_data at_fftdata;
struct fmplayer_fft_input_data fftdata;
} g = {
.at_fftdata_flag = ATOMIC_FLAG_INIT
};
static void soundout_cb(void *userptr, int16_t *buf, unsigned frames) {
struct opna_timer *timer = (struct opna_timer *)userptr;
memset(buf, 0, sizeof(int16_t)*frames*2);
opna_timer_mix(timer, buf, frames);
if (!atomic_flag_test_and_set_explicit(
&g.at_fftdata_flag, memory_order_acquire)) {
fft_write(&g.at_fftdata, buf, frames);
atomic_flag_clear_explicit(&g.at_fftdata_flag, memory_order_release);
}
}
static void load_fontrom(void) {
const char *path = "font.rom";
const char *home = getenv("HOME");
char *dpath = 0;
fmdsp_font_from_font_rom(&g.font98, g.font98data);
if (home) {
const char *datadir = DATADIR;
dpath = malloc(strlen(home)+strlen(datadir)+strlen(path) + 1);
if (dpath) {
strcpy(dpath, home);
strcat(dpath, datadir);
strcat(dpath, path);
path = dpath;
}
}
FILE *font = fopen(path, "r");
free(dpath);
if (!font) goto err;
if (fseek(font, 0, SEEK_END) != 0) goto err_file;
long size = ftell(font);
if (size != FONT_ROM_FILESIZE) goto err_file;
if (fseek(font, 0, SEEK_SET) != 0) goto err_file;
if (fread(g.font98data, 1, FONT_ROM_FILESIZE, font) != FONT_ROM_FILESIZE) {
goto err_file;
}
fclose(font);
return;
err_file:
fclose(font);
err:
return;
}
int main(int argc, char **argv) {
fft_init_table();
if (argc != 2) {
printf("invalid arguments\n");
return 1;
}
enum fmplayer_file_error error;
g.fmfile = fmplayer_file_alloc(argv[1], &error);
if (!g.fmfile) {
printf("cannot load file: %s\n", fmplayer_file_strerror(error));
return 1;
}
fmplayer_init_work_opna(&g.work, &g.ppz8, &g.opna, &g.opna_timer, g.adpcmram);
char *realpathbuf = realpath(argv[1], 0);
if (realpathbuf) {
strncpy(g.work.filename, realpathbuf, sizeof(g.work.filename)-1);
free(realpathbuf);
}
fmplayer_file_load(&g.work, g.fmfile, 1);
g.ss = sound_init("FMPlayer glfw", SRATE, soundout_cb, &g.opna_timer);
if (!g.ss) {
printf("cannot open audio stream\n");
return 1;
}
if (!glfwInit()) {
fprintf(stderr, "cannot initialize glfw\n");
return 1;
}
glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
GLFWwindow *w = glfwCreateWindow(1280, 800, "FMPlayer OpenGL test", 0, 0);
if (!w) {
fprintf(stderr, "cannot create window\n");
return 1;
}
glfwMakeContextCurrent(w);
load_fontrom();
fmdsp_init(&g.fmdsp, &g.font98);
fmdsp_vram_init(&g.fmdsp, &g.work, g.vram);
struct fmdsp_gl *fmdsp_gl = fmdsp_gl_init(&g.fmdsp, 1.0, 1.0);
if (!fmdsp_gl) {
printf("cannot initialize opengl\n");
return 1;
}
g.ss->pause(g.ss, 0, 0);
while (!glfwWindowShouldClose(w)) {
if (!atomic_flag_test_and_set_explicit(
&g.at_fftdata_flag, memory_order_acquire)) {
memcpy(&g.fftdata.fdata, &g.at_fftdata, sizeof(g.fftdata));
atomic_flag_clear_explicit(&g.at_fftdata_flag, memory_order_release);
}
fmdsp_update(&g.fmdsp, &g.work, &g.opna, g.vram, &g.fftdata);
fmdsp_gl_render(fmdsp_gl, g.vram);
glfwSwapBuffers(w);
glfwPollEvents();
}
g.ss->free(g.ss);
return 0;
}
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