1 /* $Id: mveplay.c,v 1.12 2003-02-13 19:44:55 btb Exp $ */
15 #include <sys/types.h>
20 #if defined(STANDALONE) || defined(AUDIO)
25 #include "mve_audio.h"
36 #define MIN(a,b) ((a)<(b)?(a):(b))
39 #define MVE_OPCODE_ENDOFSTREAM 0x00
40 #define MVE_OPCODE_ENDOFCHUNK 0x01
41 #define MVE_OPCODE_CREATETIMER 0x02
42 #define MVE_OPCODE_INITAUDIOBUFFERS 0x03
43 #define MVE_OPCODE_STARTSTOPAUDIO 0x04
44 #define MVE_OPCODE_INITVIDEOBUFFERS 0x05
46 #define MVE_OPCODE_DISPLAYVIDEO 0x07
47 #define MVE_OPCODE_AUDIOFRAMEDATA 0x08
48 #define MVE_OPCODE_AUDIOFRAMESILENCE 0x09
49 #define MVE_OPCODE_INITVIDEOMODE 0x0A
51 #define MVE_OPCODE_SETPALETTE 0x0C
52 #define MVE_OPCODE_SETPALETTECOMPRESSED 0x0D
54 #define MVE_OPCODE_SETDECODINGMAP 0x0F
56 #define MVE_OPCODE_VIDEODATA 0x11
58 #define MVE_AUDIO_FLAGS_STEREO 1
59 #define MVE_AUDIO_FLAGS_16BIT 2
60 #define MVE_AUDIO_FLAGS_COMPRESSED 4
63 static int g_spdFactorDenom=10;
64 static int playing = 1;
66 void initializeMovie(MVESTREAM *mve);
67 void playMovie(MVESTREAM *mve);
68 void shutdownMovie(MVESTREAM *mve);
70 static short get_short(unsigned char *data)
73 value = data[0] | (data[1] << 8);
77 static unsigned short get_ushort(unsigned char *data)
80 value = data[0] | (data[1] << 8);
84 static int get_int(unsigned char *data)
87 value = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
91 static unsigned int unhandled_chunks[32*256];
93 static int default_seg_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
95 unhandled_chunks[major<<8|minor]++;
96 //fprintf(stderr, "unknown chunk type %02x/%02x\n", major, minor);
100 /*************************
102 *************************/
103 static int end_movie_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
108 /*************************
110 *************************/
115 static int micro_frame_delay=0;
116 static int timer_started=0;
117 static struct timeval timer_expire = {0, 0};
119 static int create_timer_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
121 __extension__ long long temp;
122 micro_frame_delay = get_int(data) * (int)get_short(data+4);
123 if (g_spdFactorNum != 0)
125 temp = micro_frame_delay;
126 temp *= g_spdFactorNum;
127 temp /= g_spdFactorDenom;
128 micro_frame_delay = (int)temp;
134 static void timer_stop(void)
136 timer_expire.tv_sec = 0;
137 timer_expire.tv_usec = 0;
141 static void timer_start(void)
144 gettimeofday(&timer_expire, NULL);
145 timer_expire.tv_usec += micro_frame_delay;
146 if (timer_expire.tv_usec > 1000000)
148 nsec = timer_expire.tv_usec / 1000000;
149 timer_expire.tv_sec += nsec;
150 timer_expire.tv_usec -= nsec*1000000;
155 static void do_timer_wait(void)
163 gettimeofday(&tv, NULL);
164 if (tv.tv_sec > timer_expire.tv_sec)
166 else if (tv.tv_sec == timer_expire.tv_sec && tv.tv_usec >= timer_expire.tv_usec)
169 ts.tv_sec = timer_expire.tv_sec - tv.tv_sec;
170 ts.tv_nsec = 1000 * (timer_expire.tv_usec - tv.tv_usec);
173 ts.tv_nsec += 1000000000UL;
177 usleep(ts.tv_sec * 1000000 + ts.tv_nsec / 1000);
179 if (nanosleep(&ts, NULL) == -1 && errno == EINTR)
184 timer_expire.tv_usec += micro_frame_delay;
185 if (timer_expire.tv_usec > 1000000)
187 nsec = timer_expire.tv_usec / 1000000;
188 timer_expire.tv_sec += nsec;
189 timer_expire.tv_usec -= nsec*1000000;
193 /*************************
195 *************************/
197 #define TOTAL_AUDIO_BUFFERS 64
199 static void mve_audio_callback(void *userdata, unsigned char *stream, int len);
200 static short *mve_audio_buffers[TOTAL_AUDIO_BUFFERS];
201 static int mve_audio_buflens[TOTAL_AUDIO_BUFFERS];
202 static int mve_audio_curbuf_curpos=0;
203 static int mve_audio_bufhead=0;
204 static int mve_audio_buftail=0;
205 static int mve_audio_playing=0;
206 static int mve_audio_canplay=0;
207 static int mve_audio_compressed=0;
208 static SDL_AudioSpec *mve_audio_spec=NULL;
210 static void mve_audio_callback(void *userdata, unsigned char *stream, int len)
214 if (mve_audio_bufhead == mve_audio_buftail)
217 //fprintf(stderr, "+ <%d (%d), %d, %d>\n", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len);
219 while (mve_audio_bufhead != mve_audio_buftail /* while we have more buffers */
220 && len > (mve_audio_buflens[mve_audio_bufhead]-mve_audio_curbuf_curpos)) /* and while we need more data */
222 length = mve_audio_buflens[mve_audio_bufhead]-mve_audio_curbuf_curpos;
223 memcpy(stream, /* cur output position */
224 ((unsigned char *)mve_audio_buffers[mve_audio_bufhead])+mve_audio_curbuf_curpos, /* cur input position */
225 length); /* cur input length */
228 stream += length; /* advance output */
229 len -= length; /* decrement avail ospace */
230 free(mve_audio_buffers[mve_audio_bufhead]); /* free the buffer */
231 mve_audio_buffers[mve_audio_bufhead]=NULL; /* free the buffer */
232 mve_audio_buflens[mve_audio_bufhead]=0; /* free the buffer */
234 if (++mve_audio_bufhead == TOTAL_AUDIO_BUFFERS) /* next buffer */
235 mve_audio_bufhead = 0;
236 mve_audio_curbuf_curpos = 0;
239 //fprintf(stderr, "= <%d (%d), %d, %d>: %d\n", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len, total);
242 if (len != 0 /* ospace remaining */
243 && mve_audio_bufhead != mve_audio_buftail) /* buffers remaining */
245 memcpy(stream, /* dest */
246 ((unsigned char *)mve_audio_buffers[mve_audio_bufhead]) + mve_audio_curbuf_curpos, /* src */
249 mve_audio_curbuf_curpos += len; /* advance input */
250 stream += len; /* advance output (unnecessary) */
251 len -= len; /* advance output (unnecessary) */
253 if (mve_audio_curbuf_curpos >= mve_audio_buflens[mve_audio_bufhead]) /* if this ends the current chunk */
255 free(mve_audio_buffers[mve_audio_bufhead]); /* free buffer */
256 mve_audio_buffers[mve_audio_bufhead]=NULL;
257 mve_audio_buflens[mve_audio_bufhead]=0;
259 if (++mve_audio_bufhead == TOTAL_AUDIO_BUFFERS) /* next buffer */
260 mve_audio_bufhead = 0;
261 mve_audio_curbuf_curpos = 0;
265 //fprintf(stderr, "- <%d (%d), %d, %d>\n", mve_audio_bufhead, mve_audio_curbuf_curpos, mve_audio_buftail, len);
269 static int create_audiobuf_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
282 flags = get_ushort(data + 2);
283 sample_rate = get_ushort(data + 4);
284 desired_buffer = get_int(data + 6);
286 stereo = (flags & MVE_AUDIO_FLAGS_STEREO) ? 1 : 0;
287 bitsize = (flags & MVE_AUDIO_FLAGS_16BIT) ? 1 : 0;
290 compressed = flags & MVE_AUDIO_FLAGS_COMPRESSED ? 1 : 0;
295 mve_audio_compressed = compressed;
298 format = AUDIO_S16LSB;
303 fprintf(stderr, "creating audio buffers:\n");
304 fprintf(stderr, "sample rate = %d, stereo = %d, bitsize = %d, compressed = %d\n",
305 sample_rate, stereo, bitsize ? 16 : 8, compressed);
307 mve_audio_spec = (SDL_AudioSpec *)malloc(sizeof(SDL_AudioSpec));
308 mve_audio_spec->freq = sample_rate;
309 mve_audio_spec->format = format;
310 mve_audio_spec->channels = (stereo) ? 2 : 1;
311 mve_audio_spec->samples = 4096;
312 mve_audio_spec->callback = mve_audio_callback;
313 mve_audio_spec->userdata = NULL;
314 if (SDL_OpenAudio(mve_audio_spec, NULL) >= 0)
316 fprintf(stderr, " success\n");
317 mve_audio_canplay = 1;
321 fprintf(stderr, " failure : %s\n", SDL_GetError());
322 mve_audio_canplay = 0;
325 memset(mve_audio_buffers, 0, sizeof(mve_audio_buffers));
326 memset(mve_audio_buflens, 0, sizeof(mve_audio_buflens));
332 static int play_audio_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
335 if (mve_audio_canplay && !mve_audio_playing && mve_audio_bufhead != mve_audio_buftail)
338 mve_audio_playing = 1;
344 static int audio_data_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
347 static const int selected_chan=1;
350 if (mve_audio_canplay)
352 if (mve_audio_playing)
355 chan = get_ushort(data + 2);
356 nsamp = get_ushort(data + 4);
357 if (chan & selected_chan)
359 /* HACK: +4 mveaudio_uncompress adds 4 more bytes */
360 if (major == MVE_OPCODE_AUDIOFRAMEDATA) {
361 if (mve_audio_compressed) {
364 mve_audio_buflens[mve_audio_buftail] = nsamp;
365 mve_audio_buffers[mve_audio_buftail] = (short *)malloc(nsamp);
366 mveaudio_uncompress(mve_audio_buffers[mve_audio_buftail], data, -1); /* XXX */
371 mve_audio_buflens[mve_audio_buftail] = nsamp;
372 mve_audio_buffers[mve_audio_buftail] = (short *)malloc(nsamp);
373 memcpy(mve_audio_buffers[mve_audio_buftail], data, nsamp);
376 mve_audio_buflens[mve_audio_buftail] = nsamp;
377 mve_audio_buffers[mve_audio_buftail] = (short *)malloc(nsamp);
379 memset(mve_audio_buffers[mve_audio_buftail], 0, nsamp); /* XXX */
382 if (++mve_audio_buftail == TOTAL_AUDIO_BUFFERS)
383 mve_audio_buftail = 0;
385 if (mve_audio_buftail == mve_audio_bufhead)
386 fprintf(stderr, "d'oh! buffer ring overrun (%d)\n", mve_audio_bufhead);
389 if (mve_audio_playing)
397 /*************************
399 *************************/
400 int g_width, g_height;
401 void *g_vBuffers, *g_vBackBuf1, *g_vBackBuf2;
404 static SDL_Surface *g_screen;
406 static grs_bitmap *g_screen;
408 static int g_screenWidth, g_screenHeight;
409 static unsigned char g_palette[768];
410 static unsigned char *g_pCurMap=NULL;
411 static int g_nMapLength=0;
412 static int g_truecolor;
413 static int g_palette_changed = 0;
415 static int create_videobuf_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
418 short count, truecolor;
421 h = get_short(data+2);
424 count = get_short(data+4);
430 truecolor = get_short(data+6);
439 Assert((g_width == g_screen->bm_w) && (g_height == g_screen->bm_h));
442 /* TODO: * 4 causes crashes on some files */
443 g_vBackBuf1 = g_vBuffers = malloc(g_width * g_height * 8);
445 g_vBackBuf2 = (unsigned short *)g_vBackBuf1 + (g_width * g_height);
447 g_vBackBuf2 = (unsigned char *)g_vBackBuf1 + (g_width * g_height);
450 memset(g_vBackBuf1, 0, g_width * g_height * 4);
452 fprintf(stderr, "DEBUG: w,h=%d,%d count=%d, tc=%d\n", w, h, count, truecolor);
454 g_truecolor = truecolor;
460 static int do_sdl_events()
464 while (SDL_PollEvent(&event)) {
471 if (event.key.keysym.sym == SDLK_ESCAPE)
478 case SDL_MOUSEBUTTONDOWN:
480 if (event.button.button == SDL_BUTTON_LEFT) {
481 printf("GRID: %d,%d (pix:%d,%d)\n",
482 event.button.x / 16, event.button.y / 8,
483 event.button.x, event.button.y);
495 static void ConvertAndDraw()
498 unsigned char *pal = g_palette;
499 unsigned char *pDest;
500 unsigned char *pixels = g_vBackBuf1;
501 SDL_Surface *screenSprite, *initSprite;
505 initSprite = SDL_CreateRGBSurface(SDL_SWSURFACE, g_width, g_height, g_truecolor?16:8, 0x7C00, 0x03E0, 0x001F, 0);
508 for(i = 0; i < 256; i++) {
509 initSprite->format->palette->colors[i].r = (*pal++) << 2;
510 initSprite->format->palette->colors[i].g = (*pal++) << 2;
511 initSprite->format->palette->colors[i].b = (*pal++) << 2;
512 initSprite->format->palette->colors[i].unused = 0;
516 pDest = initSprite->pixels;
518 if (0 /*g_truecolor*/) {
520 unsigned short *pSrcs, *pDests;
522 pSrcs = (unsigned short *)pixels;
523 pDests = (unsigned short *)pDest;
525 for (y=0; y<g_height; y++) {
526 for (x = 0; x < g_width; x++) {
527 pDests[x] = (1<<15)|*pSrcs;
530 pDests += g_screenWidth;
535 for (i=0; i<g_height; i++) {
536 memcpy(pDest, pixels, g_width * (g_truecolor?2:1));
537 pixels += g_width* (g_truecolor?2:1);
538 pDest += initSprite->pitch;
542 screenSprite = SDL_DisplayFormat(initSprite);
543 SDL_FreeSurface(initSprite);
545 if (g_screenWidth > screenSprite->w)
546 x = (g_screenWidth - screenSprite->w) >> 1;
549 if (g_screenHeight > screenSprite->h)
550 y = (g_screenHeight - screenSprite->h) >> 1;
555 renderArea.w = MIN(g_screenWidth - x, screenSprite->w);
556 renderArea.h = MIN(g_screenHeight - y, screenSprite->h);
557 SDL_BlitSurface(screenSprite, NULL, g_screen, &renderArea);
559 SDL_FreeSurface(screenSprite);
563 static int display_video_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
572 if (g_palette_changed)
574 gr_palette_load(g_palette);
575 g_palette_changed = 0;
578 memcpy(g_screen->bm_data, g_vBackBuf1, g_width * g_height);
584 static int init_video_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
587 width = get_short(data);
588 height = get_short(data+2);
590 g_screen = SDL_SetVideoMode(width, height, 16, SDL_ANYFORMAT|SDL_DOUBLEBUF);
592 g_screenWidth = width;
593 g_screenHeight = height;
594 memset(g_palette, 0, 765);
595 // 255 needs to default to white, for subtitles, etc
596 memset(g_palette + 765, 63, 3);
600 static int video_palette_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
603 start = get_short(data);
604 count = get_short(data+2);
605 memcpy(g_palette + 3*start, data+4, 3*count);
606 g_palette_changed = 1;
611 static int video_codemap_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
618 void decodeFrame16(unsigned char *pFrame, unsigned char *pMap, int mapRemain, unsigned char *pData, int dataRemain);
619 void decodeFrame8(unsigned char *pFrame, unsigned char *pMap, int mapRemain, unsigned char *pData, int dataRemain);
621 static int video_data_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
623 short nFrameHot, nFrameCold;
624 short nXoffset, nYoffset;
625 short nXsize, nYsize;
626 unsigned short nFlags;
629 nFrameHot = get_short(data);
630 nFrameCold = get_short(data+2);
631 nXoffset = get_short(data+4);
632 nYoffset = get_short(data+6);
633 nXsize = get_short(data+8);
634 nYsize = get_short(data+10);
635 nFlags = get_ushort(data+12);
639 temp = (unsigned char *)g_vBackBuf1;
640 g_vBackBuf1 = g_vBackBuf2;
644 /* convert the frame */
646 decodeFrame16((unsigned char *)g_vBackBuf1, g_pCurMap, g_nMapLength, data+14, len-14);
648 decodeFrame8(g_vBackBuf1, g_pCurMap, g_nMapLength, data+14, len-14);
654 static int end_chunk_handler(unsigned char major, unsigned char minor, unsigned char *data, int len, void *context)
660 void initializeMovie(MVESTREAM *mve)
664 for (i = 0; i < 32; i++)
665 mve_set_handler(mve, i, default_seg_handler);
667 memset(unhandled_chunks, 0, 32*256);
669 mve_set_handler(mve, MVE_OPCODE_ENDOFSTREAM, end_movie_handler);
670 mve_set_handler(mve, MVE_OPCODE_ENDOFCHUNK, end_chunk_handler);
671 mve_set_handler(mve, MVE_OPCODE_CREATETIMER, create_timer_handler);
672 mve_set_handler(mve, MVE_OPCODE_INITAUDIOBUFFERS, create_audiobuf_handler);
673 mve_set_handler(mve, MVE_OPCODE_STARTSTOPAUDIO, play_audio_handler);
674 mve_set_handler(mve, MVE_OPCODE_INITVIDEOBUFFERS, create_videobuf_handler);
676 mve_set_handler(mve, MVE_OPCODE_DISPLAYVIDEO, display_video_handler);
677 mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMEDATA, audio_data_handler);
678 mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMESILENCE, audio_data_handler);
679 mve_set_handler(mve, MVE_OPCODE_INITVIDEOMODE, init_video_handler);
681 mve_set_handler(mve, MVE_OPCODE_SETPALETTE, video_palette_handler);
682 mve_set_handler(mve, MVE_OPCODE_SETPALETTECOMPRESSED, video_palette_handler);
683 mve_set_handler(mve, MVE_OPCODE_SETDECODINGMAP, video_codemap_handler);
685 mve_set_handler(mve, MVE_OPCODE_VIDEODATA, video_data_handler);
688 void playMovie(MVESTREAM *mve)
692 while (cont && playing)
694 cont = mve_play_next_chunk(mve);
695 if (micro_frame_delay && !init_timer)
705 void shutdownMovie(MVESTREAM *mve)
709 for (i = 0; i < 32*256; i++) {
710 if (unhandled_chunks[i]) {
711 fprintf(stderr, "unhandled chunks of type %02x/%02x: %d\n", i>>8, i&0xFF, unhandled_chunks[i]);
717 void mveplay_initializeMovie(MVESTREAM *mve, grs_bitmap *mve_bitmap)
721 g_screen = mve_bitmap;
723 for (i = 0; i < 32; i++)
724 mve_set_handler(mve, i, default_seg_handler);
726 mve_set_handler(mve, MVE_OPCODE_ENDOFSTREAM, end_movie_handler);
727 mve_set_handler(mve, MVE_OPCODE_ENDOFCHUNK, end_chunk_handler);
728 mve_set_handler(mve, MVE_OPCODE_CREATETIMER, create_timer_handler);
729 mve_set_handler(mve, MVE_OPCODE_INITAUDIOBUFFERS, create_audiobuf_handler);
730 mve_set_handler(mve, MVE_OPCODE_STARTSTOPAUDIO, play_audio_handler);
731 mve_set_handler(mve, MVE_OPCODE_INITVIDEOBUFFERS, create_videobuf_handler);
733 mve_set_handler(mve, MVE_OPCODE_DISPLAYVIDEO, display_video_handler);
734 mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMEDATA, audio_data_handler);
735 mve_set_handler(mve, MVE_OPCODE_AUDIOFRAMESILENCE, audio_data_handler);
736 mve_set_handler(mve, MVE_OPCODE_INITVIDEOMODE, init_video_handler);
738 mve_set_handler(mve, MVE_OPCODE_SETPALETTE, video_palette_handler);
739 mve_set_handler(mve, MVE_OPCODE_SETPALETTECOMPRESSED, default_seg_handler);
741 mve_set_handler(mve, MVE_OPCODE_SETDECODINGMAP, video_codemap_handler);
743 mve_set_handler(mve, MVE_OPCODE_VIDEODATA, video_data_handler);
747 int mveplay_stepMovie(MVESTREAM *mve)
749 static int init_timer=0;
755 cont = mve_play_next_chunk(mve);
756 if (micro_frame_delay && !init_timer) {
766 void mveplay_restartTimer(MVESTREAM *mve)
771 void mveplay_shutdownMovie(MVESTREAM *mve)
778 if (mve_audio_canplay) {
779 // only close audio if we opened it
780 mve_audio_canplay = 0;
782 for (i = 0; i < TOTAL_AUDIO_BUFFERS; i++)
783 if (mve_audio_buffers[i] != NULL)
784 free(mve_audio_buffers[i]);
785 memset(mve_audio_buffers, 0, sizeof(mve_audio_buffers));
786 memset(mve_audio_buflens, 0, sizeof(mve_audio_buflens));
787 mve_audio_curbuf_curpos=0;
792 mve_audio_compressed=0;
794 free(mve_audio_spec);