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fteqw/engine/client/clq2_cin.c

541 lines
10 KiB
C
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#include "quakedef.h"
#ifndef NOMEDIA
typedef struct
{
qbyte *data;
int count;
} cblock_t;
typedef struct
{
qboolean restart_sound;
int s_rate;
int s_width;
int s_channels;
int width;
int height;
qbyte *pic;
qbyte *pic_pending;
// order 1 huffman stuff
int *hnodes1; // [256][256][2];
int numhnodes1[256];
int h_used[512];
int h_count[512];
int cinematictime;
qboolean cinematicpalette_active;
qbyte cinematicpalette[768];
vfsfile_t *cinematic_file;
int cinematicframe;
} cinematics_t;
cinematics_t cin;
void CIN_StopCinematic (void)
{
Media_PlayFilm("");
cin.cinematictime = 0; // done
if (cin.pic)
{
Z_Free (cin.pic);
cin.pic = NULL;
}
if (cin.pic_pending)
{
Z_Free (cin.pic_pending);
cin.pic_pending = NULL;
}
if (cin.cinematicpalette_active)
{
// re.CinematicSetPalette(NULL);
cin.cinematicpalette_active = false;
}
if (cin.cinematic_file)
{
VFS_CLOSE (cin.cinematic_file);
cin.cinematic_file = NULL;
}
if (cin.hnodes1)
{
Z_Free (cin.hnodes1);
cin.hnodes1 = NULL;
}
// switch back down to 11 khz sound if necessary
if (cin.restart_sound)
{
cin.restart_sound = false;
S_Restart_f ();
}
}
/*
====================
SCR_FinishCinematic
Called when either the cinematic completes, or it is aborted
====================
*/
void CIN_FinishCinematic (void)
{
// tell the server to advance to the next map / cinematic
if (cls.state == ca_active)
{
CL_SendClientCommand(true, "nextserver %i", cl.servercount);
}
S_RawAudio(0, NULL, 0, 0, 0, 0);
}
//==========================================================================
/*
==================
SmallestNode1
==================
*/
static int SmallestNode1 (int numhnodes)
{
int i;
int best, bestnode;
best = 99999999;
bestnode = -1;
for (i=0 ; i<numhnodes ; i++)
{
if (cin.h_used[i])
continue;
if (!cin.h_count[i])
continue;
if (cin.h_count[i] < best)
{
best = cin.h_count[i];
bestnode = i;
}
}
if (bestnode == -1)
return -1;
cin.h_used[bestnode] = true;
return bestnode;
}
/*
==================
Huff1TableInit
Reads the 64k counts table and initializes the node trees
==================
*/
static void Huff1TableInit (void)
{
int prev;
int j;
int *node, *nodebase;
qbyte counts[256];
int numhnodes;
cin.hnodes1 = Z_Malloc (256*256*2*4);
memset (cin.hnodes1, 0, 256*256*2*4);
for (prev=0 ; prev<256 ; prev++)
{
memset (cin.h_count,0,sizeof(cin.h_count));
memset (cin.h_used,0,sizeof(cin.h_used));
// read a row of counts
VFS_READ (cin.cinematic_file, counts, sizeof(counts));
for (j=0 ; j<256 ; j++)
cin.h_count[j] = counts[j];
// build the nodes
numhnodes = 256;
nodebase = cin.hnodes1 + prev*256*2;
while (numhnodes != 511)
{
node = nodebase + (numhnodes-256)*2;
// pick two lowest counts
node[0] = SmallestNode1 (numhnodes);
if (node[0] == -1)
break; // no more
node[1] = SmallestNode1 (numhnodes);
if (node[1] == -1)
break;
cin.h_count[numhnodes] = cin.h_count[node[0]] + cin.h_count[node[1]];
numhnodes++;
}
cin.numhnodes1[prev] = numhnodes-1;
}
}
/*
==================
Huff1Decompress
==================
*/
static cblock_t Huff1Decompress (cblock_t in)
{
qbyte *input;
qbyte *out_p;
int nodenum;
int count;
cblock_t out;
int inbyte;
int *hnodes, *hnodesbase;
//int i;
// get decompressed count
count = in.data[0] + (in.data[1]<<8) + (in.data[2]<<16) + (in.data[3]<<24);
input = in.data + 4;
out_p = out.data = Z_Malloc (count);
// read bits
hnodesbase = cin.hnodes1 - 256*2; // nodes 0-255 aren't stored
hnodes = hnodesbase;
nodenum = cin.numhnodes1[0];
while (count)
{
inbyte = *input++;
//-----------
if (nodenum < 256)
{
hnodes = hnodesbase + (nodenum<<9);
*out_p++ = nodenum;
if (!--count)
break;
nodenum = cin.numhnodes1[nodenum];
}
nodenum = hnodes[nodenum*2 + (inbyte&1)];
inbyte >>=1;
//-----------
if (nodenum < 256)
{
hnodes = hnodesbase + (nodenum<<9);
*out_p++ = nodenum;
if (!--count)
break;
nodenum = cin.numhnodes1[nodenum];
}
nodenum = hnodes[nodenum*2 + (inbyte&1)];
inbyte >>=1;
//-----------
if (nodenum < 256)
{
hnodes = hnodesbase + (nodenum<<9);
*out_p++ = nodenum;
if (!--count)
break;
nodenum = cin.numhnodes1[nodenum];
}
nodenum = hnodes[nodenum*2 + (inbyte&1)];
inbyte >>=1;
//-----------
if (nodenum < 256)
{
hnodes = hnodesbase + (nodenum<<9);
*out_p++ = nodenum;
if (!--count)
break;
nodenum = cin.numhnodes1[nodenum];
}
nodenum = hnodes[nodenum*2 + (inbyte&1)];
inbyte >>=1;
//-----------
if (nodenum < 256)
{
hnodes = hnodesbase + (nodenum<<9);
*out_p++ = nodenum;
if (!--count)
break;
nodenum = cin.numhnodes1[nodenum];
}
nodenum = hnodes[nodenum*2 + (inbyte&1)];
inbyte >>=1;
//-----------
if (nodenum < 256)
{
hnodes = hnodesbase + (nodenum<<9);
*out_p++ = nodenum;
if (!--count)
break;
nodenum = cin.numhnodes1[nodenum];
}
nodenum = hnodes[nodenum*2 + (inbyte&1)];
inbyte >>=1;
//-----------
if (nodenum < 256)
{
hnodes = hnodesbase + (nodenum<<9);
*out_p++ = nodenum;
if (!--count)
break;
nodenum = cin.numhnodes1[nodenum];
}
nodenum = hnodes[nodenum*2 + (inbyte&1)];
inbyte >>=1;
//-----------
if (nodenum < 256)
{
hnodes = hnodesbase + (nodenum<<9);
*out_p++ = nodenum;
if (!--count)
break;
nodenum = cin.numhnodes1[nodenum];
}
nodenum = hnodes[nodenum*2 + (inbyte&1)];
inbyte >>=1;
}
if (input - in.data != in.count && input - in.data != in.count+1)
{
Con_Printf ("Decompression overread by %i", (input - in.data) - in.count);
}
out.count = out_p - out.data;
return out;
}
/*
==================
SCR_ReadNextFrame
==================
*/
qbyte *CIN_ReadNextFrame (void)
{
int r;
int command;
qbyte samples[22050/14*4];
qbyte compressed[0x20000];
int size;
qbyte *pic;
cblock_t in, huf1;
int start, end, count;
// read the next frame
r = VFS_READ (cin.cinematic_file, &command, 4);
if (r == 0) // we'll give it one more chance
r = VFS_READ (cin.cinematic_file, &command, 4);
if (r != 4)
return NULL;
command = LittleLong(command);
if (command == 2)
return NULL; // last frame marker
if (command == 1)
{ // read palette
VFS_READ (cin.cinematic_file, cin.cinematicpalette, sizeof(cin.cinematicpalette));
cin.cinematicpalette_active=0; // dubious.... exposes an edge case
}
// decompress the next frame
VFS_READ (cin.cinematic_file, &size, 4);
size = LittleLong(size);
if (size > sizeof(compressed) || size < 1)
Host_Error ("Bad compressed frame size");
VFS_READ (cin.cinematic_file, compressed, size);
// read sound
start = cin.cinematicframe*cin.s_rate/14;
end = (cin.cinematicframe+1)*cin.s_rate/14;
count = end - start;
VFS_READ (cin.cinematic_file, samples, count*cin.s_width*cin.s_channels);
S_RawAudio (0, samples, cin.s_rate, count, cin.s_channels, cin.s_width);
in.data = compressed;
in.count = size;
huf1 = Huff1Decompress (in);
pic = huf1.data;
cin.cinematicframe++;
return pic;
}
/*
==================
SCR_RunCinematic
==================
*/
qboolean CIN_DrawCinematic (void);
qboolean CIN_RunCinematic (void)
{
int frame;
if (cin.cinematictime <= 0)
{
CIN_StopCinematic ();
return false;
}
if (cin.cinematictime-3 > realtime*1000)
cin.cinematictime = realtime*1000;
/* if (key_dest != key_game)
{ // pause if menu or console is up
cin.cinematictime = realtime - cin.cinematicframe*1000/14;
return true;
}*/
frame = (realtime*1000 - cin.cinematictime)*14/1000;
if (frame <= cin.cinematicframe)
return true;
if (frame > cin.cinematicframe+1)
{
Con_Printf ("Dropped frame: %i > %i\n", frame, cin.cinematicframe+1);
cin.cinematictime = realtime*1000 - cin.cinematicframe*1000/14;
}
if (cin.pic)
Z_Free (cin.pic);
cin.pic = cin.pic_pending;
cin.pic_pending = NULL;
cin.pic_pending = CIN_ReadNextFrame ();
if (!cin.pic_pending)
{
CIN_StopCinematic ();
CIN_FinishCinematic ();
cin.cinematictime = 1; // hack to get the black screen behind loading
SCR_BeginLoadingPlaque ();
cin.cinematictime = 0;
return false;
}
return true;
}
/*
==================
SCR_DrawCinematic
Returns true if a cinematic is active, meaning the view rendering
should be skipped
==================
*/
qboolean CIN_DrawCinematic (void)
{
if (cin.cinematictime <= 0)
{
return false;
}
if (key_dest == key_menu)
{ // blank screen and pause if menu is up
// re.CinematicSetPalette(NULL);
cin.cinematicpalette_active = false;
// return true;
}
if (!cin.cinematicpalette_active)
{
// re.CinematicSetPalette(cl.cinematicpalette);
cin.cinematicpalette_active = true;
}
if (!cin.pic)
return true;
Media_ShowFrame8bit(cin.pic, cin.width, cin.height, cin.cinematicpalette);
// re.DrawStretchRaw (0, 0, viddef.width, viddef.height,
// cin.width, cin.height, cin.pic);
return true;
}
/*
==================
SCR_PlayCinematic
==================
*/
qboolean CIN_PlayCinematic (char *arg)
{
int width, height;
char name[MAX_OSPATH];
// int old_khz;
// make sure CD isn't playing music
CDAudio_Stop();
cin.cinematicframe = 0;
cin.cinematic_file = FS_OpenVFS(arg, "rb", FS_GAME);
if (!cin.cinematic_file)
{
_snprintf (name, sizeof(name), "video/%s", arg);
cin.cinematic_file = FS_OpenVFS(name, "rb", FS_GAME);
}
if (!cin.cinematic_file)
{
// Com_Error (ERR_DROP, "Cinematic %s not found.\n", name);
CIN_FinishCinematic ();
cin.cinematictime = 0; // done
Con_Printf("^1Cinematic %s not found.\n", name);
return true;
}
SCR_EndLoadingPlaque ();
VFS_READ (cin.cinematic_file, &width, 4);
VFS_READ (cin.cinematic_file, &height, 4);
cin.width = LittleLong(width);
cin.height = LittleLong(height);
VFS_READ (cin.cinematic_file, &cin.s_rate, 4);
cin.s_rate = LittleLong(cin.s_rate);
VFS_READ (cin.cinematic_file, &cin.s_width, 4);
cin.s_width = LittleLong(cin.s_width);
VFS_READ (cin.cinematic_file, &cin.s_channels, 4);
cin.s_channels = LittleLong(cin.s_channels);
Huff1TableInit ();
// switch up to 22 khz sound if necessary
/*old_khz = Cvar_VariableValue ("snd_khz");
if (old_khz != cin.s_rate/1000)
{
cin.restart_sound = true;
Cvar_SetValue ("snd_khz", cin.s_rate/1000);
S_Restart_f ();
Cvar_SetValue ("snd_khz", old_khz);
}*/
cin.cinematicframe = 0;
cin.pic = CIN_ReadNextFrame ();
cin.cinematictime = Sys_DoubleTime ()*1000+0.001;
return true;
}
#endif
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