Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | pmbaty | 1 | /* |
| 2 | * This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>. |
||
| 3 | * It is copyright by its individual contributors, as recorded in the |
||
| 4 | * project's Git history. See COPYING.txt at the top level for license |
||
| 5 | * terms and a link to the Git history. |
||
| 6 | */ |
||
| 7 | //#define DEBUG |
||
| 8 | |||
| 9 | #include "dxxsconf.h" |
||
| 10 | #include <vector> |
||
| 11 | #include <string.h> |
||
| 12 | #include <time.h> |
||
| 13 | #include <sys/time.h> |
||
| 14 | #ifdef _WIN32 |
||
| 15 | # include <windows.h> |
||
| 16 | #else |
||
| 17 | # include <errno.h> |
||
| 18 | # include <fcntl.h> |
||
| 19 | # ifdef macintosh |
||
| 20 | # include <types.h> |
||
| 21 | # include <OSUtils.h> |
||
| 22 | # else |
||
| 23 | # include <sys/types.h> |
||
| 24 | # include <sys/stat.h> |
||
| 25 | # include <unistd.h> |
||
| 26 | # endif // macintosh |
||
| 27 | #endif // _WIN32 |
||
| 28 | |||
| 29 | #include <SDL.h> |
||
| 30 | #if DXX_USE_SDLMIXER |
||
| 31 | #include <SDL_mixer.h> |
||
| 32 | #endif |
||
| 33 | |||
| 34 | #include "config.h" |
||
| 35 | #include "mvelib.h" |
||
| 36 | #include "mve_audio.h" |
||
| 37 | #include "byteutil.h" |
||
| 38 | #include "decoders.h" |
||
| 39 | #include "libmve.h" |
||
| 40 | #include "args.h" |
||
| 41 | #include "console.h" |
||
| 42 | #include "u_mem.h" |
||
| 43 | #include <memory> |
||
| 44 | |||
| 45 | #define MVE_OPCODE_ENDOFSTREAM 0x00 |
||
| 46 | #define MVE_OPCODE_ENDOFCHUNK 0x01 |
||
| 47 | #define MVE_OPCODE_CREATETIMER 0x02 |
||
| 48 | #define MVE_OPCODE_INITAUDIOBUFFERS 0x03 |
||
| 49 | #define MVE_OPCODE_STARTSTOPAUDIO 0x04 |
||
| 50 | #define MVE_OPCODE_INITVIDEOBUFFERS 0x05 |
||
| 51 | |||
| 52 | #define MVE_OPCODE_DISPLAYVIDEO 0x07 |
||
| 53 | #define MVE_OPCODE_AUDIOFRAMEDATA 0x08 |
||
| 54 | #define MVE_OPCODE_AUDIOFRAMESILENCE 0x09 |
||
| 55 | #define MVE_OPCODE_INITVIDEOMODE 0x0A |
||
| 56 | |||
| 57 | #define MVE_OPCODE_SETPALETTE 0x0C |
||
| 58 | #define MVE_OPCODE_SETPALETTECOMPRESSED 0x0D |
||
| 59 | |||
| 60 | #define MVE_OPCODE_SETDECODINGMAP 0x0F |
||
| 61 | |||
| 62 | #define MVE_OPCODE_VIDEODATA 0x11 |
||
| 63 | |||
| 64 | #define MVE_AUDIO_FLAGS_STEREO 1 |
||
| 65 | #define MVE_AUDIO_FLAGS_16BIT 2 |
||
| 66 | #define MVE_AUDIO_FLAGS_COMPRESSED 4 |
||
| 67 | |||
| 68 | int g_spdFactorNum=0; |
||
| 69 | static int g_spdFactorDenom=10; |
||
| 70 | static int g_frameUpdated = 0; |
||
| 71 | |||
| 72 | static int16_t get_short(const unsigned char *data) |
||
| 73 | { |
||
| 74 | short value; |
||
| 75 | value = data[0] | (data[1] << 8); |
||
| 76 | return value; |
||
| 77 | } |
||
| 78 | |||
| 79 | static uint16_t get_ushort(const unsigned char *data) |
||
| 80 | { |
||
| 81 | unsigned short value; |
||
| 82 | value = data[0] | (data[1] << 8); |
||
| 83 | return value; |
||
| 84 | } |
||
| 85 | |||
| 86 | static int32_t get_int(const unsigned char *data) |
||
| 87 | { |
||
| 88 | int value; |
||
| 89 | value = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24); |
||
| 90 | return value; |
||
| 91 | } |
||
| 92 | |||
| 93 | /************************* |
||
| 94 | * general handlers |
||
| 95 | *************************/ |
||
| 96 | static int end_movie_handler(unsigned char, unsigned char, const unsigned char *, int, void *) |
||
| 97 | { |
||
| 98 | return 0; |
||
| 99 | } |
||
| 100 | |||
| 101 | /************************* |
||
| 102 | * timer handlers |
||
| 103 | *************************/ |
||
| 104 | |||
| 105 | /* |
||
| 106 | * timer variables |
||
| 107 | */ |
||
| 108 | static int timer_created = 0; |
||
| 109 | static int micro_frame_delay=0; |
||
| 110 | static int timer_started=0; |
||
| 111 | static struct timeval timer_expire = {0, 0}; |
||
| 112 | |||
| 113 | #ifndef DXX_HAVE_STRUCT_TIMESPEC |
||
| 114 | struct timespec |
||
| 115 | { |
||
| 116 | long int tv_sec; /* Seconds. */ |
||
| 117 | long int tv_nsec; /* Nanoseconds. */ |
||
| 118 | }; |
||
| 119 | #endif |
||
| 120 | |||
| 121 | #if defined(_WIN32) || defined(macintosh) |
||
| 122 | int gettimeofday(struct timeval *tv, void *) |
||
| 123 | { |
||
| 124 | static int counter = 0; |
||
| 125 | #ifdef _WIN32 |
||
| 126 | DWORD now = GetTickCount(); |
||
| 127 | #else |
||
| 128 | long now = TickCount(); |
||
| 129 | #endif |
||
| 130 | counter++; |
||
| 131 | |||
| 132 | tv->tv_sec = now / 1000; |
||
| 133 | tv->tv_usec = (now % 1000) * 1000 + counter; |
||
| 134 | |||
| 135 | return 0; |
||
| 136 | } |
||
| 137 | #endif // defined(_WIN32) || defined(macintosh) |
||
| 138 | |||
| 139 | |||
| 140 | static int create_timer_handler(unsigned char, unsigned char, const unsigned char *data, int, void *) |
||
| 141 | { |
||
| 142 | |||
| 143 | #if !defined(_WIN32) && !defined(macintosh) // FIXME |
||
| 144 | __extension__ long long temp; |
||
| 145 | #else |
||
| 146 | long temp; |
||
| 147 | #endif |
||
| 148 | |||
| 149 | if (timer_created) |
||
| 150 | return 1; |
||
| 151 | else |
||
| 152 | timer_created = 1; |
||
| 153 | |||
| 154 | micro_frame_delay = get_int(data) * static_cast<int>(get_short(data+4)); |
||
| 155 | if (g_spdFactorNum != 0) |
||
| 156 | { |
||
| 157 | temp = micro_frame_delay; |
||
| 158 | temp *= g_spdFactorNum; |
||
| 159 | temp /= g_spdFactorDenom; |
||
| 160 | micro_frame_delay = static_cast<int>(temp); |
||
| 161 | } |
||
| 162 | |||
| 163 | return 1; |
||
| 164 | } |
||
| 165 | |||
| 166 | static void timer_stop(void) |
||
| 167 | { |
||
| 168 | timer_expire.tv_sec = 0; |
||
| 169 | timer_expire.tv_usec = 0; |
||
| 170 | timer_started = 0; |
||
| 171 | } |
||
| 172 | |||
| 173 | static void timer_start(void) |
||
| 174 | { |
||
| 175 | int nsec=0; |
||
| 176 | gettimeofday(&timer_expire, NULL); |
||
| 177 | timer_expire.tv_usec += micro_frame_delay; |
||
| 178 | if (timer_expire.tv_usec > 1000000) |
||
| 179 | { |
||
| 180 | nsec = timer_expire.tv_usec / 1000000; |
||
| 181 | timer_expire.tv_sec += nsec; |
||
| 182 | timer_expire.tv_usec -= nsec*1000000; |
||
| 183 | } |
||
| 184 | timer_started=1; |
||
| 185 | } |
||
| 186 | |||
| 187 | static void do_timer_wait(void) |
||
| 188 | { |
||
| 189 | int nsec=0; |
||
| 190 | struct timespec ts; |
||
| 191 | struct timeval tv; |
||
| 192 | if (! timer_started) |
||
| 193 | return; |
||
| 194 | |||
| 195 | gettimeofday(&tv, NULL); |
||
| 196 | if (tv.tv_sec > timer_expire.tv_sec) |
||
| 197 | goto end; |
||
| 198 | else if (tv.tv_sec == timer_expire.tv_sec && tv.tv_usec >= timer_expire.tv_usec) |
||
| 199 | goto end; |
||
| 200 | |||
| 201 | ts.tv_sec = timer_expire.tv_sec - tv.tv_sec; |
||
| 202 | ts.tv_nsec = 1000 * (timer_expire.tv_usec - tv.tv_usec); |
||
| 203 | if (ts.tv_nsec < 0) |
||
| 204 | { |
||
| 205 | ts.tv_nsec += 1000000000UL; |
||
| 206 | --ts.tv_sec; |
||
| 207 | } |
||
| 208 | #ifdef _WIN32 |
||
| 209 | Sleep(ts.tv_sec * 1000 + ts.tv_nsec / 1000000); |
||
| 210 | #elif defined(macintosh) |
||
| 211 | Delay(ts.tv_sec * 1000 + ts.tv_nsec / 1000000, NULL); |
||
| 212 | #else |
||
| 213 | if (nanosleep(&ts, NULL) == -1 && errno == EINTR) |
||
| 214 | exit(1); |
||
| 215 | #endif |
||
| 216 | |||
| 217 | end: |
||
| 218 | timer_expire.tv_usec += micro_frame_delay; |
||
| 219 | if (timer_expire.tv_usec > 1000000) |
||
| 220 | { |
||
| 221 | nsec = timer_expire.tv_usec / 1000000; |
||
| 222 | timer_expire.tv_sec += nsec; |
||
| 223 | timer_expire.tv_usec -= nsec*1000000; |
||
| 224 | } |
||
| 225 | } |
||
| 226 | |||
| 227 | /************************* |
||
| 228 | * audio handlers |
||
| 229 | *************************/ |
||
| 230 | #define TOTAL_AUDIO_BUFFERS 64 |
||
| 231 | |||
| 232 | namespace { |
||
| 233 | |||
| 234 | class MVE_audio_deleter |
||
| 235 | { |
||
| 236 | public: |
||
| 237 | void operator()(int16_t *p) const |
||
| 238 | { |
||
| 239 | mve_free(p); |
||
| 240 | } |
||
| 241 | }; |
||
| 242 | |||
| 243 | template <typename T> |
||
| 244 | struct MVE_audio_clamp |
||
| 245 | { |
||
| 246 | const unsigned scale; |
||
| 247 | MVE_audio_clamp(const unsigned DigiVolume) : |
||
| 248 | scale(DigiVolume) |
||
| 249 | { |
||
| 250 | } |
||
| 251 | T operator()(const T &i) const |
||
| 252 | { |
||
| 253 | return (static_cast<int32_t>(i) * scale) / 8; |
||
| 254 | } |
||
| 255 | }; |
||
| 256 | |||
| 257 | } |
||
| 258 | |||
| 259 | static int audiobuf_created = 0; |
||
| 260 | static void mve_audio_callback(void *userdata, unsigned char *stream, int len); |
||
| 261 | static std::array<std::unique_ptr<short[], MVE_audio_deleter>, TOTAL_AUDIO_BUFFERS> mve_audio_buffers; |
||
| 262 | static std::array<unsigned, TOTAL_AUDIO_BUFFERS> mve_audio_buflens; |
||
| 263 | static int mve_audio_curbuf_curpos=0; |
||
| 264 | static int mve_audio_bufhead=0; |
||
| 265 | static int mve_audio_buftail=0; |
||
| 266 | static int mve_audio_playing=0; |
||
| 267 | static int mve_audio_canplay=0; |
||
| 268 | static unsigned mve_audio_flags; |
||
| 269 | static int mve_audio_enabled = 1; |
||
| 270 | static std::unique_ptr<SDL_AudioSpec> mve_audio_spec; |
||
| 271 | |||
| 272 | static void mve_audio_callback(void *, unsigned char *stream, int len) |
||
| 273 | { |
||
| 274 | int total=0; |
||
| 275 | int length; |
||
| 276 | if (mve_audio_bufhead == mve_audio_buftail) |
||
| 277 | return /* 0 */; |
||
| 278 | |||
| 279 | //con_printf(CON_CRITICAL, "+ <%d (%d), %d, %d>", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len); |
||
| 280 | |||
| 281 | while (mve_audio_bufhead != mve_audio_buftail /* while we have more buffers */ |
||
| 282 | && len > (mve_audio_buflens[mve_audio_bufhead]-mve_audio_curbuf_curpos)) /* and while we need more data */ |
||
| 283 | { |
||
| 284 | length = mve_audio_buflens[mve_audio_bufhead]-mve_audio_curbuf_curpos; |
||
| 285 | memcpy(stream, /* cur output position */ |
||
| 286 | (reinterpret_cast<uint8_t *>(mve_audio_buffers[mve_audio_bufhead].get()))+mve_audio_curbuf_curpos, /* cur input position */ |
||
| 287 | length); /* cur input length */ |
||
| 288 | |||
| 289 | total += length; |
||
| 290 | stream += length; /* advance output */ |
||
| 291 | len -= length; /* decrement avail ospace */ |
||
| 292 | mve_audio_buffers[mve_audio_bufhead].reset(); /* free the buffer */ |
||
| 293 | mve_audio_buflens[mve_audio_bufhead]=0; /* free the buffer */ |
||
| 294 | |||
| 295 | if (++mve_audio_bufhead == TOTAL_AUDIO_BUFFERS) /* next buffer */ |
||
| 296 | mve_audio_bufhead = 0; |
||
| 297 | mve_audio_curbuf_curpos = 0; |
||
| 298 | } |
||
| 299 | |||
| 300 | //con_printf(CON_CRITICAL, "= <%d (%d), %d, %d>: %d", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len, total); |
||
| 301 | /* return total; */ |
||
| 302 | |||
| 303 | if (len != 0 /* ospace remaining */ |
||
| 304 | && mve_audio_bufhead != mve_audio_buftail) /* buffers remaining */ |
||
| 305 | { |
||
| 306 | memcpy(stream, /* dest */ |
||
| 307 | (reinterpret_cast<uint8_t *>(mve_audio_buffers[mve_audio_bufhead].get()))+mve_audio_curbuf_curpos, /* src */ |
||
| 308 | len); /* length */ |
||
| 309 | |||
| 310 | mve_audio_curbuf_curpos += len; /* advance input */ |
||
| 311 | stream += len; /* advance output (unnecessary) */ |
||
| 312 | len -= len; /* advance output (unnecessary) */ |
||
| 313 | |||
| 314 | if (mve_audio_curbuf_curpos >= mve_audio_buflens[mve_audio_bufhead]) /* if this ends the current chunk */ |
||
| 315 | { |
||
| 316 | mve_audio_buffers[mve_audio_bufhead].reset(); /* free buffer */ |
||
| 317 | mve_audio_buflens[mve_audio_bufhead]=0; |
||
| 318 | |||
| 319 | if (++mve_audio_bufhead == TOTAL_AUDIO_BUFFERS) /* next buffer */ |
||
| 320 | mve_audio_bufhead = 0; |
||
| 321 | mve_audio_curbuf_curpos = 0; |
||
| 322 | } |
||
| 323 | } |
||
| 324 | |||
| 325 | //con_printf(CON_CRITICAL, "- <%d (%d), %d, %d>", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len); |
||
| 326 | } |
||
| 327 | |||
| 328 | static int create_audiobuf_handler(unsigned char, unsigned char minor, const unsigned char *data, int, void *) |
||
| 329 | { |
||
| 330 | int flags; |
||
| 331 | int sample_rate; |
||
| 332 | int desired_buffer; |
||
| 333 | |||
| 334 | if (!mve_audio_enabled) |
||
| 335 | return 1; |
||
| 336 | |||
| 337 | if (audiobuf_created) |
||
| 338 | return 1; |
||
| 339 | else |
||
| 340 | audiobuf_created = 1; |
||
| 341 | |||
| 342 | flags = get_ushort(data + 2); |
||
| 343 | sample_rate = get_ushort(data + 4); |
||
| 344 | desired_buffer = get_int(data + 6); |
||
| 345 | |||
| 346 | const unsigned stereo = (flags & MVE_AUDIO_FLAGS_STEREO); |
||
| 347 | const unsigned bitsize = (flags & MVE_AUDIO_FLAGS_16BIT); |
||
| 348 | if (!minor) |
||
| 349 | flags &= ~MVE_AUDIO_FLAGS_COMPRESSED; |
||
| 350 | const unsigned compressed = flags & MVE_AUDIO_FLAGS_COMPRESSED; |
||
| 351 | mve_audio_flags = flags; |
||
| 352 | |||
| 353 | const unsigned format = (bitsize) |
||
| 354 | ? (words_bigendian ? AUDIO_S16MSB : AUDIO_S16LSB) |
||
| 355 | : AUDIO_U8; |
||
| 356 | |||
| 357 | if (CGameArg.SndDisableSdlMixer) |
||
| 358 | { |
||
| 359 | con_puts(CON_CRITICAL, "creating audio buffers:"); |
||
| 360 | con_printf(CON_CRITICAL, "sample rate = %d, desired buffer = %d, stereo = %d, bitsize = %d, compressed = %d", |
||
| 361 | sample_rate, desired_buffer, stereo ? 1 : 0, bitsize ? 16 : 8, compressed ? 1 : 0); |
||
| 362 | } |
||
| 363 | |||
| 364 | mve_audio_spec = std::make_unique<SDL_AudioSpec>(); |
||
| 365 | mve_audio_spec->freq = sample_rate; |
||
| 366 | mve_audio_spec->format = format; |
||
| 367 | mve_audio_spec->channels = (stereo) ? 2 : 1; |
||
| 368 | mve_audio_spec->samples = 4096; |
||
| 369 | mve_audio_spec->callback = mve_audio_callback; |
||
| 370 | mve_audio_spec->userdata = NULL; |
||
| 371 | |||
| 372 | // MD2211: if using SDL_Mixer, we never reinit the sound system |
||
| 373 | if (CGameArg.SndDisableSdlMixer) |
||
| 374 | { |
||
| 375 | if (SDL_OpenAudio(mve_audio_spec.get(), NULL) >= 0) { |
||
| 376 | con_puts(CON_CRITICAL, " success"); |
||
| 377 | mve_audio_canplay = 1; |
||
| 378 | } |
||
| 379 | else { |
||
| 380 | con_printf(CON_CRITICAL, " failure : %s", SDL_GetError()); |
||
| 381 | mve_audio_canplay = 0; |
||
| 382 | } |
||
| 383 | } |
||
| 384 | |||
| 385 | #if DXX_USE_SDLMIXER |
||
| 386 | else { |
||
| 387 | // MD2211: using the same old SDL audio callback as a postmixer in SDL_mixer |
||
| 388 | Mix_SetPostMix(mve_audio_spec->callback, mve_audio_spec->userdata); |
||
| 389 | mve_audio_canplay = 1; |
||
| 390 | } |
||
| 391 | #endif |
||
| 392 | |||
| 393 | mve_audio_buffers = {}; |
||
| 394 | mve_audio_buflens = {}; |
||
| 395 | return 1; |
||
| 396 | } |
||
| 397 | |||
| 398 | static int play_audio_handler(unsigned char, unsigned char, const unsigned char *, int, void *) |
||
| 399 | { |
||
| 400 | if (mve_audio_canplay && !mve_audio_playing && mve_audio_bufhead != mve_audio_buftail) |
||
| 401 | { |
||
| 402 | if (CGameArg.SndDisableSdlMixer) |
||
| 403 | SDL_PauseAudio(0); |
||
| 404 | #if DXX_USE_SDLMIXER |
||
| 405 | else |
||
| 406 | Mix_Pause(0); |
||
| 407 | #endif |
||
| 408 | mve_audio_playing = 1; |
||
| 409 | } |
||
| 410 | return 1; |
||
| 411 | } |
||
| 412 | |||
| 413 | static int audio_data_handler(unsigned char major, unsigned char, const unsigned char *data, int, void *) |
||
| 414 | { |
||
| 415 | static const int selected_chan=1; |
||
| 416 | int chan; |
||
| 417 | int nsamp; |
||
| 418 | if (mve_audio_canplay) |
||
| 419 | { |
||
| 420 | if (mve_audio_playing) |
||
| 421 | SDL_LockAudio(); |
||
| 422 | |||
| 423 | chan = get_ushort(data + 2); |
||
| 424 | nsamp = get_ushort(data + 4); |
||
| 425 | if (chan & selected_chan) |
||
| 426 | { |
||
| 427 | std::unique_ptr<int16_t[], MVE_audio_deleter> p; |
||
| 428 | const auto DigiVolume = GameCfg.DigiVolume; |
||
| 429 | /* HACK: +4 mveaudio_uncompress adds 4 more bytes */ |
||
| 430 | /* At volume 0 (minimum), no sound is wanted. */ |
||
| 431 | if (DigiVolume && major == MVE_OPCODE_AUDIOFRAMEDATA) { |
||
| 432 | const auto flags = mve_audio_flags; |
||
| 433 | if (flags & MVE_AUDIO_FLAGS_COMPRESSED) { |
||
| 434 | nsamp += 4; |
||
| 435 | |||
| 436 | p.reset(reinterpret_cast<int16_t *>(mve_alloc(nsamp))); |
||
| 437 | mveaudio_uncompress(p.get(), data); /* XXX */ |
||
| 438 | } else { |
||
| 439 | nsamp -= 8; |
||
| 440 | data += 8; |
||
| 441 | |||
| 442 | p.reset(reinterpret_cast<int16_t *>(mve_alloc(nsamp))); |
||
| 443 | memcpy(p.get(), data, nsamp); |
||
| 444 | } |
||
| 445 | if (DigiVolume < 8) |
||
| 446 | { |
||
| 447 | /* At volume 8 (maximum), no scaling is needed. */ |
||
| 448 | if (flags & MVE_AUDIO_FLAGS_16BIT) |
||
| 449 | { |
||
| 450 | int16_t *const p16 = p.get(); |
||
| 451 | std::transform(p16, reinterpret_cast<int16_t *>(reinterpret_cast<uint8_t *>(p16) + nsamp), p16, MVE_audio_clamp<int16_t>(DigiVolume)); |
||
| 452 | } |
||
| 453 | else |
||
| 454 | { |
||
| 455 | int8_t *const p8 = reinterpret_cast<int8_t *>(p.get()); |
||
| 456 | std::transform(p8, p8 + nsamp, p8, MVE_audio_clamp<int8_t>(DigiVolume)); |
||
| 457 | } |
||
| 458 | } |
||
| 459 | } else { |
||
| 460 | p.reset(reinterpret_cast<int16_t *>(mve_alloc(nsamp))); |
||
| 461 | memset(p.get(), 0, nsamp); /* XXX */ |
||
| 462 | } |
||
| 463 | unsigned buflen = nsamp; |
||
| 464 | |||
| 465 | // MD2211: the following block does on-the-fly audio conversion for SDL_mixer |
||
| 466 | #if DXX_USE_SDLMIXER |
||
| 467 | if (!CGameArg.SndDisableSdlMixer) { |
||
| 468 | // build converter: in = MVE format, out = SDL_mixer output |
||
| 469 | int out_freq; |
||
| 470 | Uint16 out_format; |
||
| 471 | int out_channels; |
||
| 472 | Mix_QuerySpec(&out_freq, &out_format, &out_channels); // get current output settings |
||
| 473 | |||
| 474 | SDL_AudioCVT cvt{}; |
||
| 475 | SDL_BuildAudioCVT(&cvt, mve_audio_spec->format, mve_audio_spec->channels, mve_audio_spec->freq, |
||
| 476 | out_format, out_channels, out_freq); |
||
| 477 | |||
| 478 | RAIIdmem<uint8_t[]> cvtbuf; |
||
| 479 | MALLOC(cvtbuf, uint8_t[], nsamp * cvt.len_mult); |
||
| 480 | cvt.buf = cvtbuf.get(); |
||
| 481 | cvt.len = nsamp; |
||
| 482 | |||
| 483 | // read the audio buffer into the conversion buffer |
||
| 484 | memcpy(cvt.buf, p.get(), nsamp); |
||
| 485 | |||
| 486 | // do the conversion |
||
| 487 | if (SDL_ConvertAudio(&cvt)) |
||
| 488 | con_printf(CON_URGENT, "%s:%u: SDL_ConvertAudio failed: nsamp=%u out_format=%i out_channels=%i out_freq=%i", __FILE__, __LINE__, nsamp, out_format, out_channels, out_freq); |
||
| 489 | else |
||
| 490 | { |
||
| 491 | // copy back to the audio buffer |
||
| 492 | const std::size_t converted_buffer_size = cvt.len_cvt; |
||
| 493 | p.reset(reinterpret_cast<int16_t *>(mve_alloc(converted_buffer_size))); // free the old audio buffer |
||
| 494 | buflen = converted_buffer_size; |
||
| 495 | memcpy(p.get(), cvt.buf, converted_buffer_size); |
||
| 496 | } |
||
| 497 | } |
||
| 498 | #endif |
||
| 499 | mve_audio_buffers[mve_audio_buftail] = std::move(p); |
||
| 500 | mve_audio_buflens[mve_audio_buftail] = buflen; |
||
| 501 | |||
| 502 | if (++mve_audio_buftail == TOTAL_AUDIO_BUFFERS) |
||
| 503 | mve_audio_buftail = 0; |
||
| 504 | |||
| 505 | if (mve_audio_buftail == mve_audio_bufhead) |
||
| 506 | con_printf(CON_CRITICAL, "d'oh! buffer ring overrun (%d)", mve_audio_bufhead); |
||
| 507 | } |
||
| 508 | |||
| 509 | if (mve_audio_playing) |
||
| 510 | SDL_UnlockAudio(); |
||
| 511 | } |
||
| 512 | |||
| 513 | return 1; |
||
| 514 | } |
||
| 515 | |||
| 516 | /************************* |
||
| 517 | * video handlers |
||
| 518 | *************************/ |
||
| 519 | |||
| 520 | static int videobuf_created = 0; |
||
| 521 | static int video_initialized = 0; |
||
| 522 | int g_width, g_height; |
||
| 523 | static std::vector<unsigned char> g_vBuffers; |
||
| 524 | unsigned char *g_vBackBuf1, *g_vBackBuf2; |
||
| 525 | |||
| 526 | static int g_destX, g_destY; |
||
| 527 | static int g_screenWidth, g_screenHeight; |
||
| 528 | static const unsigned char *g_pCurMap; |
||
| 529 | static int g_nMapLength=0; |
||
| 530 | static int g_truecolor; |
||
| 531 | |||
| 532 | static int create_videobuf_handler(unsigned char, unsigned char minor, const unsigned char *data, int, void *) |
||
| 533 | { |
||
| 534 | short w, h, |
||
| 535 | #ifdef DEBUG |
||
| 536 | count, |
||
| 537 | #endif |
||
| 538 | truecolor; |
||
| 539 | |||
| 540 | if (videobuf_created) |
||
| 541 | return 1; |
||
| 542 | else |
||
| 543 | videobuf_created = 1; |
||
| 544 | |||
| 545 | w = get_short(data); |
||
| 546 | h = get_short(data+2); |
||
| 547 | |||
| 548 | #ifdef DEBUG |
||
| 549 | if (minor > 0) { |
||
| 550 | count = get_short(data+4); |
||
| 551 | } else { |
||
| 552 | count = 1; |
||
| 553 | } |
||
| 554 | #endif |
||
| 555 | |||
| 556 | if (minor > 1) { |
||
| 557 | truecolor = get_short(data+6); |
||
| 558 | } else { |
||
| 559 | truecolor = 0; |
||
| 560 | } |
||
| 561 | |||
| 562 | g_width = w << 3; |
||
| 563 | g_height = h << 3; |
||
| 564 | |||
| 565 | /* TODO: * 4 causes crashes on some files */ |
||
| 566 | /* only malloc once */ |
||
| 567 | g_vBuffers.assign(g_width * g_height * 8, 0); |
||
| 568 | g_vBackBuf1 = &g_vBuffers[0]; |
||
| 569 | if (truecolor) { |
||
| 570 | g_vBackBuf2 = reinterpret_cast<uint8_t *>(reinterpret_cast<uint16_t *>(g_vBackBuf1) + (g_width * g_height)); |
||
| 571 | } else { |
||
| 572 | g_vBackBuf2 = (g_vBackBuf1 + (g_width * g_height)); |
||
| 573 | } |
||
| 574 | #ifdef DEBUG |
||
| 575 | con_printf(CON_CRITICAL, "DEBUG: w,h=%d,%d count=%d, tc=%d", w, h, count, truecolor); |
||
| 576 | #endif |
||
| 577 | |||
| 578 | g_truecolor = truecolor; |
||
| 579 | |||
| 580 | return 1; |
||
| 581 | } |
||
| 582 | |||
| 583 | static int display_video_handler(unsigned char, unsigned char, const unsigned char *, int, void *) |
||
| 584 | { |
||
| 585 | mve_showframe(g_vBackBuf1, g_destX, g_destY, g_width, g_height, g_screenWidth, g_screenHeight); |
||
| 586 | |||
| 587 | g_frameUpdated = 1; |
||
| 588 | |||
| 589 | return 1; |
||
| 590 | } |
||
| 591 | |||
| 592 | static int init_video_handler(unsigned char, unsigned char, const unsigned char *data, int, void *) |
||
| 593 | { |
||
| 594 | short width, height; |
||
| 595 | |||
| 596 | if (video_initialized) |
||
| 597 | return 1; /* maybe we actually need to change width/height here? */ |
||
| 598 | else |
||
| 599 | video_initialized = 1; |
||
| 600 | |||
| 601 | width = get_short(data); |
||
| 602 | height = get_short(data+2); |
||
| 603 | g_screenWidth = width; |
||
| 604 | g_screenHeight = height; |
||
| 605 | |||
| 606 | return 1; |
||
| 607 | } |
||
| 608 | |||
| 609 | static int video_palette_handler(unsigned char, unsigned char, const unsigned char *data, int, void *) |
||
| 610 | { |
||
| 611 | short start, count; |
||
| 612 | start = get_short(data); |
||
| 613 | count = get_short(data+2); |
||
| 614 | |||
| 615 | auto p = data + 4; |
||
| 616 | mve_setpalette(p - 3*start, start, count); |
||
| 617 | return 1; |
||
| 618 | } |
||
| 619 | |||
| 620 | static int video_codemap_handler(unsigned char, unsigned char, const unsigned char *data, int len, void *) |
||
| 621 | { |
||
| 622 | g_pCurMap = data; |
||
| 623 | g_nMapLength = len; |
||
| 624 | return 1; |
||
| 625 | } |
||
| 626 | |||
| 627 | static int video_data_handler(unsigned char, unsigned char, const unsigned char *data, int len, void *) |
||
| 628 | { |
||
| 629 | unsigned short nFlags; |
||
| 630 | |||
| 631 | // don't need those but kept for further reference |
||
| 632 | // nFrameHot = get_short(data); |
||
| 633 | // nFrameCold = get_short(data+2); |
||
| 634 | // nXoffset = get_short(data+4); |
||
| 635 | // nYoffset = get_short(data+6); |
||
| 636 | // nXsize = get_short(data+8); |
||
| 637 | // nYsize = get_short(data+10); |
||
| 638 | nFlags = get_ushort(data+12); |
||
| 639 | |||
| 640 | if (nFlags & 1) |
||
| 641 | { |
||
| 642 | std::swap(g_vBackBuf1, g_vBackBuf2); |
||
| 643 | } |
||
| 644 | |||
| 645 | /* convert the frame */ |
||
| 646 | if (g_truecolor) { |
||
| 647 | decodeFrame16(g_vBackBuf1, g_pCurMap, g_nMapLength, data+14, len-14); |
||
| 648 | } else { |
||
| 649 | decodeFrame8(g_vBackBuf1, g_pCurMap, g_nMapLength, data+14, len-14); |
||
| 650 | } |
||
| 651 | |||
| 652 | return 1; |
||
| 653 | } |
||
| 654 | |||
| 655 | static int end_chunk_handler(unsigned char, unsigned char, const unsigned char *, int, void *) |
||
| 656 | { |
||
| 657 | g_pCurMap=NULL; |
||
| 658 | return 1; |
||
| 659 | } |
||
| 660 | |||
| 661 | void MVE_ioCallbacks(mve_cb_Read io_read) |
||
| 662 | { |
||
| 663 | mve_read = io_read; |
||
| 664 | } |
||
| 665 | |||
| 666 | void MVE_memCallbacks(mve_cb_Alloc mem_alloc, mve_cb_Free mem_free) |
||
| 667 | { |
||
| 668 | mve_alloc = mem_alloc; |
||
| 669 | mve_free = mem_free; |
||
| 670 | } |
||
| 671 | |||
| 672 | void MVE_sfCallbacks(mve_cb_ShowFrame showframe) |
||
| 673 | { |
||
| 674 | mve_showframe = showframe; |
||
| 675 | } |
||
| 676 | |||
| 677 | void MVE_palCallbacks(mve_cb_SetPalette setpalette) |
||
| 678 | { |
||
| 679 | mve_setpalette = setpalette; |
||
| 680 | } |
||
| 681 | |||
| 682 | int MVE_rmPrepMovie(MVESTREAM_ptr_t &pMovie, void *src, int x, int y, int) |
||
| 683 | { |
||
| 684 | if (pMovie) { |
||
| 685 | mve_reset(pMovie.get()); |
||
| 686 | return 0; |
||
| 687 | } |
||
| 688 | |||
| 689 | pMovie = mve_open(src); |
||
| 690 | |||
| 691 | if (!pMovie) |
||
| 692 | return 1; |
||
| 693 | |||
| 694 | g_destX = x; |
||
| 695 | g_destY = y; |
||
| 696 | |||
| 697 | auto &mve = *pMovie.get(); |
||
| 698 | mve_set_handler(mve, MVE_OPCODE_ENDOFSTREAM, end_movie_handler); |
||
| 699 | mve_set_handler(mve, MVE_OPCODE_ENDOFCHUNK, end_chunk_handler); |
||
| 700 | mve_set_handler(mve, MVE_OPCODE_CREATETIMER, create_timer_handler); |
||
| 701 | mve_set_handler(mve, MVE_OPCODE_INITAUDIOBUFFERS, create_audiobuf_handler); |
||
| 702 | mve_set_handler(mve, MVE_OPCODE_STARTSTOPAUDIO, play_audio_handler); |
||
| 703 | mve_set_handler(mve, MVE_OPCODE_INITVIDEOBUFFERS, create_videobuf_handler); |
||
| 704 | |||
| 705 | mve_set_handler(mve, MVE_OPCODE_DISPLAYVIDEO, display_video_handler); |
||
| 706 | mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMEDATA, audio_data_handler); |
||
| 707 | mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMESILENCE, audio_data_handler); |
||
| 708 | mve_set_handler(mve, MVE_OPCODE_INITVIDEOMODE, init_video_handler); |
||
| 709 | |||
| 710 | mve_set_handler(mve, MVE_OPCODE_SETPALETTE, video_palette_handler); |
||
| 711 | mve_set_handler(mve, MVE_OPCODE_SETDECODINGMAP, video_codemap_handler); |
||
| 712 | |||
| 713 | mve_set_handler(mve, MVE_OPCODE_VIDEODATA, video_data_handler); |
||
| 714 | |||
| 715 | mve_play_next_chunk(mve); /* video initialization chunk */ |
||
| 716 | mve_play_next_chunk(mve); /* audio initialization chunk */ |
||
| 717 | |||
| 718 | return 0; |
||
| 719 | } |
||
| 720 | |||
| 721 | |||
| 722 | void MVE_getVideoSpec(MVE_videoSpec *vSpec) |
||
| 723 | { |
||
| 724 | vSpec->screenWidth = g_screenWidth; |
||
| 725 | vSpec->screenHeight = g_screenHeight; |
||
| 726 | vSpec->width = g_width; |
||
| 727 | vSpec->height = g_height; |
||
| 728 | vSpec->truecolor = g_truecolor; |
||
| 729 | } |
||
| 730 | |||
| 731 | |||
| 732 | MVE_StepStatus MVE_rmStepMovie(MVESTREAM &mve) |
||
| 733 | { |
||
| 734 | static int init_timer=0; |
||
| 735 | int cont=1; |
||
| 736 | |||
| 737 | if (!timer_started) |
||
| 738 | timer_start(); |
||
| 739 | |||
| 740 | while (cont && !g_frameUpdated) // make a "step" be a frame, not a chunk... |
||
| 741 | cont = mve_play_next_chunk(mve); |
||
| 742 | g_frameUpdated = 0; |
||
| 743 | |||
| 744 | if (!cont) |
||
| 745 | return MVE_StepStatus::EndOfFile; |
||
| 746 | |||
| 747 | if (micro_frame_delay && !init_timer) { |
||
| 748 | timer_start(); |
||
| 749 | init_timer = 1; |
||
| 750 | } |
||
| 751 | |||
| 752 | do_timer_wait(); |
||
| 753 | |||
| 754 | return MVE_StepStatus::Continue; |
||
| 755 | } |
||
| 756 | |||
| 757 | void MVE_rmEndMovie(std::unique_ptr<MVESTREAM>) |
||
| 758 | { |
||
| 759 | timer_stop(); |
||
| 760 | timer_created = 0; |
||
| 761 | |||
| 762 | if (mve_audio_canplay) { |
||
| 763 | // MD2211: if using SDL_Mixer, we never reinit sound, hence never close it |
||
| 764 | if (CGameArg.SndDisableSdlMixer) |
||
| 765 | { |
||
| 766 | SDL_CloseAudio(); |
||
| 767 | } |
||
| 768 | mve_audio_canplay = 0; |
||
| 769 | } |
||
| 770 | mve_audio_buffers = {}; |
||
| 771 | mve_audio_buflens = {}; |
||
| 772 | |||
| 773 | mve_audio_curbuf_curpos=0; |
||
| 774 | mve_audio_bufhead=0; |
||
| 775 | mve_audio_buftail=0; |
||
| 776 | mve_audio_playing=0; |
||
| 777 | mve_audio_canplay=0; |
||
| 778 | mve_audio_flags = 0; |
||
| 779 | |||
| 780 | mve_audio_spec.reset(); |
||
| 781 | audiobuf_created = 0; |
||
| 782 | g_vBuffers.clear(); |
||
| 783 | g_pCurMap=NULL; |
||
| 784 | g_nMapLength=0; |
||
| 785 | videobuf_created = 0; |
||
| 786 | video_initialized = 0; |
||
| 787 | } |
||
| 788 | |||
| 789 | |||
| 790 | void MVE_rmHoldMovie() |
||
| 791 | { |
||
| 792 | timer_started = 0; |
||
| 793 | } |
||
| 794 | |||
| 795 | |||
| 796 | void MVE_sndInit(int x) |
||
| 797 | { |
||
| 798 | mve_audio_enabled = (x == -1 ? 0 : 1); |
||
| 799 | } |