1 /* $Id: mveplay.c,v 1.12 2003-06-02 01:58:10 btb Exp $ */
15 #include <sys/types.h>
20 #if defined(STANDALONE) || defined(AUDIO)
25 #include "mve_audio.h"
37 #define d_malloc(size) malloc(size)
38 #define d_free(ptr) free(ptr)
42 #define MIN(a,b) ((a)<(b)?(a):(b))
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
52 #define MVE_OPCODE_DISPLAYVIDEO 0x07
53 #define MVE_OPCODE_AUDIOFRAMEDATA 0x08
54 #define MVE_OPCODE_AUDIOFRAMESILENCE 0x09
55 #define MVE_OPCODE_INITVIDEOMODE 0x0A
57 #define MVE_OPCODE_SETPALETTE 0x0C
58 #define MVE_OPCODE_SETPALETTECOMPRESSED 0x0D
60 #define MVE_OPCODE_SETDECODINGMAP 0x0F
62 #define MVE_OPCODE_VIDEODATA 0x11
64 #define MVE_AUDIO_FLAGS_STEREO 1
65 #define MVE_AUDIO_FLAGS_16BIT 2
66 #define MVE_AUDIO_FLAGS_COMPRESSED 4
69 static int g_spdFactorDenom=10;
70 static int g_frameUpdated = 0;
73 static int playing = 1;
74 int g_sdlVidFlags = SDL_ANYFORMAT | SDL_DOUBLEBUF;
77 void initializeMovie(MVESTREAM *mve);
78 void playMovie(MVESTREAM *mve);
79 void shutdownMovie(MVESTREAM *mve);
82 static short get_short(unsigned char *data)
85 value = data[0] | (data[1] << 8);
89 static unsigned short get_ushort(unsigned char *data)
92 value = data[0] | (data[1] << 8);
96 static int get_int(unsigned char *data)
99 value = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
103 static unsigned int unhandled_chunks[32*256];
105 static int default_seg_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
107 unhandled_chunks[major<<8|minor]++;
108 //fprintf(stderr, "unknown chunk type %02x/%02x\n", major, minor);
113 /*************************
115 *************************/
116 static int end_movie_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
121 /*************************
123 *************************/
125 #if !HAVE_STRUCT_TIMEVAL
135 static int timer_created = 0;
136 static int micro_frame_delay=0;
137 static int timer_started=0;
138 static struct timeval timer_expire = {0, 0};
140 #if !HAVE_STRUCT_TIMESPEC
143 long int tv_sec; /* Seconds. */
144 long int tv_nsec; /* Nanoseconds. */
148 #if defined(HAVE_DECL_NANOSLEEP) && !HAVE_DECL_NANOSLEEP
149 int nanosleep(struct timespec *ts, void *rem);
153 #include <sys/timeb.h>
155 int gettimeofday(struct timeval *tv, void *tz)
157 static int counter = 0;
160 counter++; /* to avoid collisions */
162 tv->tv_sec = tm.time;
163 tv->tv_usec = (tm.millitm * 1000) + counter;
168 int nanosleep(struct timespec *ts, void *rem)
170 _sleep(ts->tv_sec * 1000 + ts->tv_nsec / 1000000);
176 static int create_timer_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
178 __extension__ long long temp;
185 micro_frame_delay = get_int(data) * (int)get_short(data+4);
186 if (g_spdFactorNum != 0)
188 temp = micro_frame_delay;
189 temp *= g_spdFactorNum;
190 temp /= g_spdFactorDenom;
191 micro_frame_delay = (int)temp;
197 static void timer_stop(void)
199 timer_expire.tv_sec = 0;
200 timer_expire.tv_usec = 0;
204 static void timer_start(void)
207 gettimeofday(&timer_expire, NULL);
208 timer_expire.tv_usec += micro_frame_delay;
209 if (timer_expire.tv_usec > 1000000)
211 nsec = timer_expire.tv_usec / 1000000;
212 timer_expire.tv_sec += nsec;
213 timer_expire.tv_usec -= nsec*1000000;
218 static void do_timer_wait(void)
226 gettimeofday(&tv, NULL);
227 if (tv.tv_sec > timer_expire.tv_sec)
229 else if (tv.tv_sec == timer_expire.tv_sec && tv.tv_usec >= timer_expire.tv_usec)
232 ts.tv_sec = timer_expire.tv_sec - tv.tv_sec;
233 ts.tv_nsec = 1000 * (timer_expire.tv_usec - tv.tv_usec);
236 ts.tv_nsec += 1000000000UL;
240 usleep(ts.tv_sec * 1000000 + ts.tv_nsec / 1000);
242 if (nanosleep(&ts, NULL) == -1 && errno == EINTR)
247 timer_expire.tv_usec += micro_frame_delay;
248 if (timer_expire.tv_usec > 1000000)
250 nsec = timer_expire.tv_usec / 1000000;
251 timer_expire.tv_sec += nsec;
252 timer_expire.tv_usec -= nsec*1000000;
256 /*************************
258 *************************/
260 #define TOTAL_AUDIO_BUFFERS 64
262 static int audiobuf_created = 0;
263 static void mve_audio_callback(void *userdata, unsigned char *stream, int len);
264 static short *mve_audio_buffers[TOTAL_AUDIO_BUFFERS];
265 static int mve_audio_buflens[TOTAL_AUDIO_BUFFERS];
266 static int mve_audio_curbuf_curpos=0;
267 static int mve_audio_bufhead=0;
268 static int mve_audio_buftail=0;
269 static int mve_audio_playing=0;
270 static int mve_audio_canplay=0;
271 static int mve_audio_compressed=0;
272 static int mve_audio_enabled = 1;
273 static SDL_AudioSpec *mve_audio_spec=NULL;
275 static void mve_audio_callback(void *userdata, unsigned char *stream, int len)
279 if (mve_audio_bufhead == mve_audio_buftail)
282 //fprintf(stderr, "+ <%d (%d), %d, %d>\n", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len);
284 while (mve_audio_bufhead != mve_audio_buftail /* while we have more buffers */
285 && len > (mve_audio_buflens[mve_audio_bufhead]-mve_audio_curbuf_curpos)) /* and while we need more data */
287 length = mve_audio_buflens[mve_audio_bufhead]-mve_audio_curbuf_curpos;
288 memcpy(stream, /* cur output position */
289 ((unsigned char *)mve_audio_buffers[mve_audio_bufhead])+mve_audio_curbuf_curpos, /* cur input position */
290 length); /* cur input length */
293 stream += length; /* advance output */
294 len -= length; /* decrement avail ospace */
295 d_free(mve_audio_buffers[mve_audio_bufhead]); /* free the buffer */
296 mve_audio_buffers[mve_audio_bufhead]=NULL; /* free the buffer */
297 mve_audio_buflens[mve_audio_bufhead]=0; /* free the buffer */
299 if (++mve_audio_bufhead == TOTAL_AUDIO_BUFFERS) /* next buffer */
300 mve_audio_bufhead = 0;
301 mve_audio_curbuf_curpos = 0;
304 //fprintf(stderr, "= <%d (%d), %d, %d>: %d\n", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len, total);
307 if (len != 0 /* ospace remaining */
308 && mve_audio_bufhead != mve_audio_buftail) /* buffers remaining */
310 memcpy(stream, /* dest */
311 ((unsigned char *)mve_audio_buffers[mve_audio_bufhead]) + mve_audio_curbuf_curpos, /* src */
314 mve_audio_curbuf_curpos += len; /* advance input */
315 stream += len; /* advance output (unnecessary) */
316 len -= len; /* advance output (unnecessary) */
318 if (mve_audio_curbuf_curpos >= mve_audio_buflens[mve_audio_bufhead]) /* if this ends the current chunk */
320 d_free(mve_audio_buffers[mve_audio_bufhead]); /* free buffer */
321 mve_audio_buffers[mve_audio_bufhead]=NULL;
322 mve_audio_buflens[mve_audio_bufhead]=0;
324 if (++mve_audio_bufhead == TOTAL_AUDIO_BUFFERS) /* next buffer */
325 mve_audio_bufhead = 0;
326 mve_audio_curbuf_curpos = 0;
330 //fprintf(stderr, "- <%d (%d), %d, %d>\n", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len);
334 static int create_audiobuf_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
347 if (!mve_audio_enabled)
350 if (audiobuf_created)
353 audiobuf_created = 1;
355 flags = get_ushort(data + 2);
356 sample_rate = get_ushort(data + 4);
357 desired_buffer = get_int(data + 6);
359 stereo = (flags & MVE_AUDIO_FLAGS_STEREO) ? 1 : 0;
360 bitsize = (flags & MVE_AUDIO_FLAGS_16BIT) ? 1 : 0;
363 compressed = flags & MVE_AUDIO_FLAGS_COMPRESSED ? 1 : 0;
368 mve_audio_compressed = compressed;
371 #ifdef WORDS_BIGENDIAN
372 format = AUDIO_S16MSB;
374 format = AUDIO_S16LSB;
380 fprintf(stderr, "creating audio buffers:\n");
381 fprintf(stderr, "sample rate = %d, stereo = %d, bitsize = %d, compressed = %d\n",
382 sample_rate, stereo, bitsize ? 16 : 8, compressed);
384 mve_audio_spec = (SDL_AudioSpec *)d_malloc(sizeof(SDL_AudioSpec));
385 mve_audio_spec->freq = sample_rate;
386 mve_audio_spec->format = format;
387 mve_audio_spec->channels = (stereo) ? 2 : 1;
388 mve_audio_spec->samples = 4096;
389 mve_audio_spec->callback = mve_audio_callback;
390 mve_audio_spec->userdata = NULL;
391 if (SDL_OpenAudio(mve_audio_spec, NULL) >= 0)
393 fprintf(stderr, " success\n");
394 mve_audio_canplay = 1;
398 fprintf(stderr, " failure : %s\n", SDL_GetError());
399 mve_audio_canplay = 0;
402 memset(mve_audio_buffers, 0, sizeof(mve_audio_buffers));
403 memset(mve_audio_buflens, 0, sizeof(mve_audio_buflens));
409 static int play_audio_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
412 if (mve_audio_canplay && !mve_audio_playing && mve_audio_bufhead != mve_audio_buftail)
415 mve_audio_playing = 1;
421 static int audio_data_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
424 static const int selected_chan=1;
427 if (mve_audio_canplay)
429 if (mve_audio_playing)
432 chan = get_ushort(data + 2);
433 nsamp = get_ushort(data + 4);
434 if (chan & selected_chan)
436 /* HACK: +4 mveaudio_uncompress adds 4 more bytes */
437 if (major == MVE_OPCODE_AUDIOFRAMEDATA) {
438 if (mve_audio_compressed) {
441 mve_audio_buflens[mve_audio_buftail] = nsamp;
442 mve_audio_buffers[mve_audio_buftail] = (short *)d_malloc(nsamp);
443 mveaudio_uncompress(mve_audio_buffers[mve_audio_buftail], data, -1); /* XXX */
448 mve_audio_buflens[mve_audio_buftail] = nsamp;
449 mve_audio_buffers[mve_audio_buftail] = (short *)d_malloc(nsamp);
450 memcpy(mve_audio_buffers[mve_audio_buftail], data, nsamp);
453 mve_audio_buflens[mve_audio_buftail] = nsamp;
454 mve_audio_buffers[mve_audio_buftail] = (short *)d_malloc(nsamp);
456 memset(mve_audio_buffers[mve_audio_buftail], 0, nsamp); /* XXX */
459 if (++mve_audio_buftail == TOTAL_AUDIO_BUFFERS)
460 mve_audio_buftail = 0;
462 if (mve_audio_buftail == mve_audio_bufhead)
463 fprintf(stderr, "d'oh! buffer ring overrun (%d)\n", mve_audio_bufhead);
466 if (mve_audio_playing)
474 /*************************
476 *************************/
477 static int videobuf_created = 0;
478 static int video_initialized = 0;
479 int g_width, g_height;
480 void *g_vBuffers = NULL, *g_vBackBuf1, *g_vBackBuf2;
483 static SDL_Surface *g_screen;
485 static int g_destX, g_destY;
487 static int g_screenWidth, g_screenHeight;
488 static unsigned char g_palette[768];
489 static unsigned char *g_pCurMap=NULL;
490 static int g_nMapLength=0;
491 static int g_truecolor;
493 static int create_videobuf_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
496 short count, truecolor;
498 if (videobuf_created)
501 videobuf_created = 1;
504 h = get_short(data+2);
507 count = get_short(data+4);
513 truecolor = get_short(data+6);
521 /* TODO: * 4 causes crashes on some files */
522 g_vBackBuf1 = g_vBuffers = d_malloc(g_width * g_height * 8);
524 g_vBackBuf2 = (unsigned short *)g_vBackBuf1 + (g_width * g_height);
526 g_vBackBuf2 = (unsigned char *)g_vBackBuf1 + (g_width * g_height);
529 memset(g_vBackBuf1, 0, g_width * g_height * 4);
532 fprintf(stderr, "DEBUG: w,h=%d,%d count=%d, tc=%d\n", w, h, count, truecolor);
535 g_truecolor = truecolor;
541 static int do_sdl_events()
545 while (SDL_PollEvent(&event)) {
551 if (event.key.keysym.sym == SDLK_ESCAPE)
557 case SDL_MOUSEBUTTONDOWN:
559 if (event.button.button == SDL_BUTTON_LEFT) {
560 printf("GRID: %d,%d (pix:%d,%d)\n",
561 event.button.x / 16, event.button.y / 8,
562 event.button.x, event.button.y);
574 static void ConvertAndDraw()
577 unsigned char *pal = g_palette;
578 unsigned char *pDest;
579 unsigned char *pixels = g_vBackBuf1;
580 SDL_Surface *screenSprite, *initSprite;
584 initSprite = SDL_CreateRGBSurface(SDL_SWSURFACE, g_width, g_height, g_truecolor?16:8, 0x7C00, 0x03E0, 0x001F, 0);
587 for(i = 0; i < 256; i++) {
588 initSprite->format->palette->colors[i].r = (*pal++) << 2;
589 initSprite->format->palette->colors[i].g = (*pal++) << 2;
590 initSprite->format->palette->colors[i].b = (*pal++) << 2;
591 initSprite->format->palette->colors[i].unused = 0;
595 pDest = initSprite->pixels;
597 if (0 /*g_truecolor*/) {
599 unsigned short *pSrcs, *pDests;
601 pSrcs = (unsigned short *)pixels;
602 pDests = (unsigned short *)pDest;
604 for (y=0; y<g_height; y++) {
605 for (x = 0; x < g_width; x++) {
606 pDests[x] = (1<<15)|*pSrcs;
609 pDests += g_screenWidth;
614 for (i=0; i<g_height; i++) {
615 memcpy(pDest, pixels, g_width * (g_truecolor?2:1));
616 pixels += g_width* (g_truecolor?2:1);
617 pDest += initSprite->pitch;
621 screenSprite = SDL_DisplayFormat(initSprite);
622 SDL_FreeSurface(initSprite);
624 if (g_screenWidth > screenSprite->w)
625 x = (g_screenWidth - screenSprite->w) >> 1;
628 if (g_screenHeight > screenSprite->h)
629 y = (g_screenHeight - screenSprite->h) >> 1;
634 renderArea.w = MIN(g_screenWidth - x, screenSprite->w);
635 renderArea.h = MIN(g_screenHeight - y, screenSprite->h);
636 SDL_BlitSurface(screenSprite, NULL, g_screen, &renderArea);
638 SDL_FreeSurface(screenSprite);
642 static int display_video_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
653 bitmap = gr_create_bitmap_raw(g_width, g_height, g_vBackBuf1);
655 if (g_destX == -1) // center it
656 g_destX = (g_screenWidth - g_width) >> 1;
657 if (g_destY == -1) // center it
658 g_destY = (g_screenHeight - g_height) >> 1;
660 gr_palette_load(g_palette);
662 gr_bitmap(g_destX, g_destY, bitmap);
664 gr_free_sub_bitmap(bitmap);
671 static int init_video_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
675 if (video_initialized)
678 video_initialized = 1;
680 width = get_short(data);
681 height = get_short(data+2);
683 g_screen = SDL_SetVideoMode(width, height, 16, g_sdlVidFlags);
685 g_screenWidth = width;
686 g_screenHeight = height;
687 memset(g_palette, 0, 765);
688 // 255 needs to default to white, for subtitles, etc
689 memset(g_palette + 765, 63, 3);
694 static int video_palette_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
697 start = get_short(data);
698 count = get_short(data+2);
699 memcpy(g_palette + 3*start, data+4, 3*count);
704 static int video_codemap_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
711 static int video_data_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
713 short nFrameHot, nFrameCold;
714 short nXoffset, nYoffset;
715 short nXsize, nYsize;
716 unsigned short nFlags;
719 nFrameHot = get_short(data);
720 nFrameCold = get_short(data+2);
721 nXoffset = get_short(data+4);
722 nYoffset = get_short(data+6);
723 nXsize = get_short(data+8);
724 nYsize = get_short(data+10);
725 nFlags = get_ushort(data+12);
729 temp = (unsigned char *)g_vBackBuf1;
730 g_vBackBuf1 = g_vBackBuf2;
734 /* convert the frame */
736 decodeFrame16((unsigned char *)g_vBackBuf1, g_pCurMap, g_nMapLength, data+14, len-14);
738 decodeFrame8(g_vBackBuf1, g_pCurMap, g_nMapLength, data+14, len-14);
744 static int end_chunk_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
752 void initializeMovie(MVESTREAM *mve)
756 for (i = 0; i < 32; i++)
757 mve_set_handler(mve, i, default_seg_handler);
759 memset(unhandled_chunks, 0, 32*256);
761 mve_set_handler(mve, MVE_OPCODE_ENDOFSTREAM, end_movie_handler);
762 mve_set_handler(mve, MVE_OPCODE_ENDOFCHUNK, end_chunk_handler);
763 mve_set_handler(mve, MVE_OPCODE_CREATETIMER, create_timer_handler);
764 mve_set_handler(mve, MVE_OPCODE_INITAUDIOBUFFERS, create_audiobuf_handler);
765 mve_set_handler(mve, MVE_OPCODE_STARTSTOPAUDIO, play_audio_handler);
766 mve_set_handler(mve, MVE_OPCODE_INITVIDEOBUFFERS, create_videobuf_handler);
768 mve_set_handler(mve, MVE_OPCODE_DISPLAYVIDEO, display_video_handler);
769 mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMEDATA, audio_data_handler);
770 mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMESILENCE, audio_data_handler);
771 mve_set_handler(mve, MVE_OPCODE_INITVIDEOMODE, init_video_handler);
773 mve_set_handler(mve, MVE_OPCODE_SETPALETTE, video_palette_handler);
774 mve_set_handler(mve, MVE_OPCODE_SETPALETTECOMPRESSED, video_palette_handler);
775 mve_set_handler(mve, MVE_OPCODE_SETDECODINGMAP, video_codemap_handler);
777 mve_set_handler(mve, MVE_OPCODE_VIDEODATA, video_data_handler);
780 void playMovie(MVESTREAM *mve)
785 mve_audio_enabled = 1;
787 while (cont && playing)
789 cont = mve_play_next_chunk(mve);
790 if (micro_frame_delay && !init_timer)
798 if (g_loop && !cont) {
805 void shutdownMovie(MVESTREAM *mve)
814 for (i = 0; i < 32*256; i++) {
815 if (unhandled_chunks[i]) {
816 fprintf(stderr, "unhandled chunks of type %02x/%02x: %d\n", i>>8, i&0xFF, unhandled_chunks[i]);
823 static MVESTREAM *mve = NULL;
825 int MVE_rmPrepMovie(int filehandle, int x, int y, int track)
834 mve = mve_open_filehandle(filehandle);
842 for (i = 0; i < 32; i++)
843 mve_set_handler(mve, i, default_seg_handler);
845 mve_set_handler(mve, MVE_OPCODE_ENDOFSTREAM, end_movie_handler);
846 mve_set_handler(mve, MVE_OPCODE_ENDOFCHUNK, end_chunk_handler);
847 mve_set_handler(mve, MVE_OPCODE_CREATETIMER, create_timer_handler);
848 mve_set_handler(mve, MVE_OPCODE_INITAUDIOBUFFERS, create_audiobuf_handler);
849 mve_set_handler(mve, MVE_OPCODE_STARTSTOPAUDIO, play_audio_handler);
850 mve_set_handler(mve, MVE_OPCODE_INITVIDEOBUFFERS, create_videobuf_handler);
852 mve_set_handler(mve, MVE_OPCODE_DISPLAYVIDEO, display_video_handler);
853 mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMEDATA, audio_data_handler);
854 mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMESILENCE, audio_data_handler);
855 mve_set_handler(mve, MVE_OPCODE_INITVIDEOMODE, init_video_handler);
857 mve_set_handler(mve, MVE_OPCODE_SETPALETTE, video_palette_handler);
858 mve_set_handler(mve, MVE_OPCODE_SETPALETTECOMPRESSED, default_seg_handler);
860 mve_set_handler(mve, MVE_OPCODE_SETDECODINGMAP, video_codemap_handler);
862 mve_set_handler(mve, MVE_OPCODE_VIDEODATA, video_data_handler);
867 int MVE_rmStepMovie()
869 static int init_timer=0;
875 while (cont && !g_frameUpdated) // make a "step" be a frame, not a chunk...
876 cont = mve_play_next_chunk(mve);
879 if (micro_frame_delay && !init_timer) {
892 void MVE_rmEndMovie()
902 if (mve_audio_canplay) {
903 // only close audio if we opened it
905 mve_audio_canplay = 0;
907 for (i = 0; i < TOTAL_AUDIO_BUFFERS; i++)
908 if (mve_audio_buffers[i] != NULL)
909 d_free(mve_audio_buffers[i]);
910 memset(mve_audio_buffers, 0, sizeof(mve_audio_buffers));
911 memset(mve_audio_buflens, 0, sizeof(mve_audio_buflens));
912 mve_audio_curbuf_curpos=0;
917 mve_audio_compressed=0;
919 d_free(mve_audio_spec);
921 audiobuf_created = 0;
928 videobuf_created = 0;
929 video_initialized = 0;
931 mve_close_filehandle(mve);
936 void MVE_rmHoldMovie()
942 void MVE_sndInit(int x)
946 mve_audio_enabled = 0;
948 mve_audio_enabled = 1;