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fteqw/engine/client/clq2_cin.c
Spoike 503eff6421 Reworked the filesystem. We now support a virtual filesystem. Many places accept stream usage, although many formats do not support this. 
I'm not sure if this will break anything. It shouldn't do, but it might.

Not everything is ported over yet. Ideally there would be no more use of fopen anywhere else in the engine, and com_gamedir would be made static to fs.c
There are a couple of other changes too.

http/ftp stuff is currently disabled.


git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@1728 fc73d0e0-1445-4013-8a0c-d673dee63da5
2005-12-21 03:07:33 +00:00

535 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
return false;
}
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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