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#include <SDL.h>
#include <stdbool.h>
#include <stdatomic.h>
#include "pacc/pacc.h"
#include "fmdsp/fmdsp-pacc.h"
#include "libopna/opna.h"
#include "libopna/opnatimer.h"
#include "fmdriver/fmdriver.h"
#include "common/fmplayer_file.h"
#include "common/fmplayer_common.h"
#include "fft/fft.h"
bool loadgl(void);
enum {
SRATE = 55467,
BUFLEN = 1024,
};
static struct {
struct opna opna;
struct opna_timer timer;
struct fmdriver_work work;
struct fmplayer_file *fmfile;
struct fmplayer_fft_data fftdata;
struct fmplayer_fft_input_data fftin;
const char *currpath;
SDL_Window *win;
SDL_AudioDeviceID adev;
struct ppz8 ppz8;
char adpcmram[OPNA_ADPCM_RAM_SIZE];
struct fmdsp_pacc *fp;
atomic_flag fftdata_flag;
} g = {
.fftdata_flag = ATOMIC_FLAG_INIT,
};
static void audiocb(void *ptr, Uint8 *bufptr, int len) {
int frames = len / (sizeof(int16_t)*2);
int16_t *buf = (int16_t *)bufptr;
memset(buf, 0, len);
opna_timer_mix(&g.timer, buf, frames);
if (!atomic_flag_test_and_set_explicit(
&g.fftdata_flag, memory_order_acquire)) {
fft_write(&g.fftdata, buf, frames);
atomic_flag_clear_explicit(&g.fftdata_flag, memory_order_release);
}
}
static void openfile(const char *path) {
enum fmplayer_file_error error;
struct fmplayer_file *file = fmplayer_file_alloc(path, &error);
if (!file) {
SDL_ShowSimpleMessageBox(
SDL_MESSAGEBOX_ERROR,
"cannot open file",
fmplayer_file_strerror(error),
g.win);
return;
}
SDL_LockAudioDevice(g.adev);
fmplayer_file_free(g.fmfile);
g.fmfile = file;
fmplayer_init_work_opna(&g.work, &g.ppz8, &g.opna, &g.timer, &g.adpcmram);
fmplayer_file_load(&g.work, g.fmfile, 1);
SDL_UnlockAudioDevice(g.adev);
SDL_PauseAudioDevice(g.adev, 0);
}
int main(int argc, char **argv) {
if (__builtin_cpu_supports("sse2")) opna_ssg_sinc_calc_func = opna_ssg_sinc_calc_sse2;
fft_init_table();
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
SDL_Log("Cannot initialize SDL\n");
return 1;
}
SDL_AudioSpec aspec = {
.freq = SRATE,
.format = AUDIO_S16SYS,
.channels = 2,
.samples = BUFLEN,
.callback = audiocb,
};
g.adev = SDL_OpenAudioDevice(0, 0, &aspec, 0, 0);
if (!g.adev) {
SDL_Log("Cannot open audio device\n");
SDL_Quit();
return 0;
}
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
#ifdef PACC_GL_ES
#ifdef PACC_GL_3
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
#else
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
#endif
#else // PACC_GL_ES
#ifdef PACC_GL_3
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
#else
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
#endif
#endif // PACC_GL_ES
g.win = SDL_CreateWindow(
"FMPlayer SDL",
SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
640*2, 400*2,
SDL_WINDOW_OPENGL);
if (!g.win) {
SDL_Log("Cannot create window\n");
SDL_Quit();
return 1;
}
SDL_GLContext glctx = SDL_GL_CreateContext(g.win);
if (!glctx) {
SDL_Log("Cannot create OpenGL context\n");
SDL_Quit();
return 1;
}
SDL_GL_SetSwapInterval(1);
if (!loadgl()) {
SDL_Log("Cannot load OpenGL functions\n");
SDL_Quit();
return 1;
}
struct pacc_vtable pacc;
struct pacc_ctx *pc = pacc_init_gl(640, 400, &pacc);
if (!pc) {
SDL_Log("Cannot initialize pacc\n");
SDL_Quit();
return 1;
}
g.fp = fmdsp_pacc_init(pc, &pacc);
if (!g.fp) {
SDL_Log("Cannot initialize fmdsp\n");
SDL_Quit();
return 1;
}
fmdsp_pacc_set(g.fp, &g.work, &g.opna, &g.fftin);
SDL_EventState(SDL_DROPFILE, SDL_ENABLE);
SDL_Event e;
bool end = false;
while (!end) {
while (SDL_PollEvent(&e)) {
switch (e.type) {
case SDL_QUIT:
end = true;
break;
case SDL_DROPFILE:
openfile(e.drop.file);
SDL_free(e.drop.file);
break;
case SDL_KEYDOWN:
if (e.key.keysym.scancode == SDL_SCANCODE_F11) {
if (e.key.keysym.mod & KMOD_SHIFT) {
fmdsp_pacc_set_right_mode(
g.fp,
(fmdsp_pacc_right_mode(g.fp) + 1) % FMDSP_RIGHT_MODE_CNT);
} else {
fmdsp_pacc_set_left_mode(
g.fp,
(fmdsp_pacc_left_mode(g.fp) + 1) % FMDSP_LEFT_MODE_CNT);
}
}
if (e.key.keysym.mod & KMOD_CTRL) {
switch (e.key.keysym.scancode) {
case SDL_SCANCODE_F1:
fmdsp_pacc_palette(g.fp, 0);
break;
case SDL_SCANCODE_F2:
fmdsp_pacc_palette(g.fp, 1);
break;
case SDL_SCANCODE_F3:
fmdsp_pacc_palette(g.fp, 2);
break;
case SDL_SCANCODE_F4:
fmdsp_pacc_palette(g.fp, 3);
break;
case SDL_SCANCODE_F5:
fmdsp_pacc_palette(g.fp, 4);
break;
case SDL_SCANCODE_F6:
fmdsp_pacc_palette(g.fp, 5);
break;
case SDL_SCANCODE_F7:
fmdsp_pacc_palette(g.fp, 6);
break;
case SDL_SCANCODE_F8:
fmdsp_pacc_palette(g.fp, 7);
break;
case SDL_SCANCODE_F9:
fmdsp_pacc_palette(g.fp, 8);
break;
case SDL_SCANCODE_F10:
fmdsp_pacc_palette(g.fp, 9);
break;
default:
break;
}
}
}
}
if (!atomic_flag_test_and_set_explicit(
&g.fftdata_flag, memory_order_acquire)) {
memcpy(&g.fftin.fdata, &g.fftdata, sizeof(g.fftdata));
atomic_flag_clear_explicit(&g.fftdata_flag, memory_order_release);
}
fmdsp_pacc_render(g.fp);
SDL_GL_SwapWindow(g.win);
}
fmdsp_pacc_release(g.fp);
pacc.pacc_delete(pc);
SDL_Quit();
return 0;
}
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