mirror of
https://git.code.sf.net/p/quake/quake2forge
synced 2024-12-12 13:42:21 +00:00
650 lines
12 KiB
C
650 lines
12 KiB
C
/*
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Copyright (C) 1997-2001 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "client.h"
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typedef struct
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{
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byte *data;
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int count;
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} cblock_t;
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typedef struct
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{
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qboolean restart_sound;
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int s_rate;
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int s_width;
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int s_channels;
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int width;
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int height;
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byte *pic;
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byte *pic_pending;
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// order 1 huffman stuff
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int *hnodes1; // [256][256][2];
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int numhnodes1[256];
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int h_used[512];
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int h_count[512];
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} cinematics_t;
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cinematics_t cin;
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/*
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=================================================================
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PCX LOADING
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=================================================================
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*/
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/*
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==============
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SCR_LoadPCX
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==============
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*/
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void SCR_LoadPCX (char *filename, byte **pic, byte **palette, int *width, int *height)
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{
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byte *raw;
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pcx_t *pcx;
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int x, y;
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int len;
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int dataByte, runLength;
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byte *out, *pix;
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*pic = NULL;
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//
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// load the file
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//
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len = FS_LoadFile (filename, (void **)&raw);
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if (!raw)
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return; // Com_Printf ("Bad pcx file %s\n", filename);
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//
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// parse the PCX file
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//
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pcx = (pcx_t *)raw;
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raw = &pcx->data;
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if (pcx->manufacturer != 0x0a
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|| pcx->version != 5
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|| pcx->encoding != 1
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|| pcx->bits_per_pixel != 8
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|| pcx->xmax >= 640
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|| pcx->ymax >= 480)
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{
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Com_Printf ("Bad pcx file %s\n", filename);
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return;
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}
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out = Z_Malloc ( (pcx->ymax+1) * (pcx->xmax+1) );
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*pic = out;
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pix = out;
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if (palette)
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{
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*palette = Z_Malloc(768);
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memcpy (*palette, (byte *)pcx + len - 768, 768);
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}
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if (width)
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*width = pcx->xmax+1;
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if (height)
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*height = pcx->ymax+1;
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for (y=0 ; y<=pcx->ymax ; y++, pix += pcx->xmax+1)
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{
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for (x=0 ; x<=pcx->xmax ; )
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{
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dataByte = *raw++;
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if((dataByte & 0xC0) == 0xC0)
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{
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runLength = dataByte & 0x3F;
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dataByte = *raw++;
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}
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else
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runLength = 1;
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while(runLength-- > 0)
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pix[x++] = dataByte;
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}
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}
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if ( raw - (byte *)pcx > len)
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{
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Com_Printf ("PCX file %s was malformed", filename);
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Z_Free (*pic);
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*pic = NULL;
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}
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FS_FreeFile (pcx);
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}
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//=============================================================
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/*
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==================
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SCR_StopCinematic
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==================
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*/
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void SCR_StopCinematic (void)
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{
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cl.cinematictime = 0; // done
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if (cin.pic)
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{
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Z_Free (cin.pic);
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cin.pic = NULL;
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}
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if (cin.pic_pending)
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{
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Z_Free (cin.pic_pending);
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cin.pic_pending = NULL;
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}
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if (cl.cinematicpalette_active)
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{
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re.CinematicSetPalette(NULL);
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cl.cinematicpalette_active = false;
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}
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if (cl.cinematic_file)
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{
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fclose (cl.cinematic_file);
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cl.cinematic_file = NULL;
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}
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if (cin.hnodes1)
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{
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Z_Free (cin.hnodes1);
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cin.hnodes1 = NULL;
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}
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// switch back down to 11 khz sound if necessary
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if (cin.restart_sound)
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{
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cin.restart_sound = false;
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CL_Snd_Restart_f ();
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}
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}
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/*
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====================
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SCR_FinishCinematic
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Called when either the cinematic completes, or it is aborted
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====================
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*/
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void SCR_FinishCinematic (void)
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{
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// tell the server to advance to the next map / cinematic
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MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
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SZ_Print (&cls.netchan.message, va("nextserver %i\n", cl.servercount));
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}
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//==========================================================================
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/*
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==================
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SmallestNode1
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==================
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*/
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int SmallestNode1 (int numhnodes)
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{
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int i;
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int best, bestnode;
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best = 99999999;
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bestnode = -1;
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for (i=0 ; i<numhnodes ; i++)
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{
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if (cin.h_used[i])
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continue;
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if (!cin.h_count[i])
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continue;
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if (cin.h_count[i] < best)
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{
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best = cin.h_count[i];
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bestnode = i;
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}
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}
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if (bestnode == -1)
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return -1;
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cin.h_used[bestnode] = true;
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return bestnode;
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}
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/*
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==================
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Huff1TableInit
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Reads the 64k counts table and initializes the node trees
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==================
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*/
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void Huff1TableInit (void)
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{
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int prev;
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int j;
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int *node, *nodebase;
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byte counts[256];
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int numhnodes;
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cin.hnodes1 = Z_Malloc (256*256*2*4);
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memset (cin.hnodes1, 0, 256*256*2*4);
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for (prev=0 ; prev<256 ; prev++)
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{
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memset (cin.h_count,0,sizeof(cin.h_count));
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memset (cin.h_used,0,sizeof(cin.h_used));
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// read a row of counts
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FS_Read (counts, sizeof(counts), cl.cinematic_file);
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for (j=0 ; j<256 ; j++)
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cin.h_count[j] = counts[j];
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// build the nodes
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numhnodes = 256;
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nodebase = cin.hnodes1 + prev*256*2;
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while (numhnodes != 511)
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{
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node = nodebase + (numhnodes-256)*2;
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// pick two lowest counts
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node[0] = SmallestNode1 (numhnodes);
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if (node[0] == -1)
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break; // no more
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node[1] = SmallestNode1 (numhnodes);
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if (node[1] == -1)
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break;
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cin.h_count[numhnodes] = cin.h_count[node[0]] + cin.h_count[node[1]];
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numhnodes++;
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}
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cin.numhnodes1[prev] = numhnodes-1;
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}
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}
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/*
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==================
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Huff1Decompress
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==================
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*/
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cblock_t Huff1Decompress (cblock_t in)
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{
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byte *input;
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byte *out_p;
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int nodenum;
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int count;
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cblock_t out;
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int inbyte;
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int *hnodes, *hnodesbase;
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//int i;
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// get decompressed count
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count = in.data[0] + (in.data[1]<<8) + (in.data[2]<<16) + (in.data[3]<<24);
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input = in.data + 4;
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out_p = out.data = Z_Malloc (count);
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// read bits
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hnodesbase = cin.hnodes1 - 256*2; // nodes 0-255 aren't stored
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hnodes = hnodesbase;
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nodenum = cin.numhnodes1[0];
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while (count)
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{
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inbyte = *input++;
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//-----------
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if (nodenum < 256)
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{
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hnodes = hnodesbase + (nodenum<<9);
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*out_p++ = nodenum;
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if (!--count)
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break;
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nodenum = cin.numhnodes1[nodenum];
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}
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nodenum = hnodes[nodenum*2 + (inbyte&1)];
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inbyte >>=1;
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//-----------
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if (nodenum < 256)
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{
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hnodes = hnodesbase + (nodenum<<9);
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*out_p++ = nodenum;
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if (!--count)
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break;
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nodenum = cin.numhnodes1[nodenum];
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}
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nodenum = hnodes[nodenum*2 + (inbyte&1)];
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inbyte >>=1;
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//-----------
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if (nodenum < 256)
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{
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hnodes = hnodesbase + (nodenum<<9);
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*out_p++ = nodenum;
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if (!--count)
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break;
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nodenum = cin.numhnodes1[nodenum];
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}
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nodenum = hnodes[nodenum*2 + (inbyte&1)];
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inbyte >>=1;
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//-----------
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if (nodenum < 256)
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{
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hnodes = hnodesbase + (nodenum<<9);
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*out_p++ = nodenum;
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if (!--count)
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break;
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nodenum = cin.numhnodes1[nodenum];
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}
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nodenum = hnodes[nodenum*2 + (inbyte&1)];
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inbyte >>=1;
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//-----------
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if (nodenum < 256)
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{
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hnodes = hnodesbase + (nodenum<<9);
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*out_p++ = nodenum;
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if (!--count)
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break;
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nodenum = cin.numhnodes1[nodenum];
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}
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nodenum = hnodes[nodenum*2 + (inbyte&1)];
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inbyte >>=1;
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//-----------
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if (nodenum < 256)
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{
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hnodes = hnodesbase + (nodenum<<9);
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*out_p++ = nodenum;
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if (!--count)
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break;
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nodenum = cin.numhnodes1[nodenum];
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}
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nodenum = hnodes[nodenum*2 + (inbyte&1)];
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inbyte >>=1;
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//-----------
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if (nodenum < 256)
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{
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hnodes = hnodesbase + (nodenum<<9);
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*out_p++ = nodenum;
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if (!--count)
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break;
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nodenum = cin.numhnodes1[nodenum];
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}
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nodenum = hnodes[nodenum*2 + (inbyte&1)];
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inbyte >>=1;
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//-----------
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if (nodenum < 256)
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{
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hnodes = hnodesbase + (nodenum<<9);
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*out_p++ = nodenum;
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if (!--count)
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break;
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nodenum = cin.numhnodes1[nodenum];
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}
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nodenum = hnodes[nodenum*2 + (inbyte&1)];
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inbyte >>=1;
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}
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if (input - in.data != in.count && input - in.data != in.count+1)
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{
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Com_Printf ("Decompression overread by %i", (int) (input - in.data) - in.count);
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}
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out.count = out_p - out.data;
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return out;
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}
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/*
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==================
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SCR_ReadNextFrame
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==================
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*/
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byte *SCR_ReadNextFrame (void)
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{
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int r;
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int command;
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byte samples[22050/14*4];
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byte compressed[0x20000];
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int size;
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byte *pic;
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cblock_t in, huf1;
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int start, end, count;
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// read the next frame
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r = fread (&command, 4, 1, cl.cinematic_file);
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if (r == 0) // we'll give it one more chance
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r = fread (&command, 4, 1, cl.cinematic_file);
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if (r != 1)
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return NULL;
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command = LittleLong(command);
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if (command == 2)
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return NULL; // last frame marker
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if (command == 1)
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{ // read palette
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FS_Read (cl.cinematicpalette, sizeof(cl.cinematicpalette), cl.cinematic_file);
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cl.cinematicpalette_active=0; // dubious.... exposes an edge case
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}
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// decompress the next frame
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FS_Read (&size, 4, cl.cinematic_file);
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size = LittleLong(size);
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if (size > sizeof(compressed) || size < 1)
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Com_Error (ERR_DROP, "Bad compressed frame size");
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FS_Read (compressed, size, cl.cinematic_file);
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// read sound
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start = cl.cinematicframe*cin.s_rate/14;
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end = (cl.cinematicframe+1)*cin.s_rate/14;
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count = end - start;
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FS_Read (samples, count*cin.s_width*cin.s_channels, cl.cinematic_file);
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S_RawSamples (count, cin.s_rate, cin.s_width, cin.s_channels, samples);
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in.data = compressed;
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in.count = size;
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huf1 = Huff1Decompress (in);
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pic = huf1.data;
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cl.cinematicframe++;
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return pic;
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}
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/*
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==================
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SCR_RunCinematic
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==================
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*/
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void SCR_RunCinematic (void)
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{
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int frame;
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if (cl.cinematictime <= 0)
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{
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SCR_StopCinematic ();
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return;
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}
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if (cl.cinematicframe == -1)
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return; // static image
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if (cls.key_dest != key_game)
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{ // pause if menu or console is up
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cl.cinematictime = cls.realtime - cl.cinematicframe*1000/14;
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return;
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}
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frame = (cls.realtime - cl.cinematictime)*14.0/1000;
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if (frame <= cl.cinematicframe)
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return;
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if (frame > cl.cinematicframe+1)
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{
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Com_Printf ("Dropped frame: %i > %i\n", frame, cl.cinematicframe+1);
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cl.cinematictime = cls.realtime - cl.cinematicframe*1000/14;
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}
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if (cin.pic)
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Z_Free (cin.pic);
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cin.pic = cin.pic_pending;
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cin.pic_pending = NULL;
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cin.pic_pending = SCR_ReadNextFrame ();
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if (!cin.pic_pending)
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{
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SCR_StopCinematic ();
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SCR_FinishCinematic ();
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cl.cinematictime = 1; // hack to get the black screen behind loading
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SCR_BeginLoadingPlaque ();
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cl.cinematictime = 0;
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return;
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}
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}
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/*
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==================
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SCR_DrawCinematic
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Returns true if a cinematic is active, meaning the view rendering
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should be skipped
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==================
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*/
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qboolean SCR_DrawCinematic (void)
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{
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if (cl.cinematictime <= 0)
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{
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return false;
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}
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if (cls.key_dest == key_menu)
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{ // blank screen and pause if menu is up
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re.CinematicSetPalette(NULL);
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cl.cinematicpalette_active = false;
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return true;
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}
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if (!cl.cinematicpalette_active)
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{
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re.CinematicSetPalette(cl.cinematicpalette);
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cl.cinematicpalette_active = true;
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}
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if (!cin.pic)
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return true;
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re.DrawStretchRaw (0, 0, viddef.width, viddef.height,
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cin.width, cin.height, cin.pic);
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return true;
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}
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/*
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==================
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SCR_PlayCinematic
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==================
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*/
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void SCR_PlayCinematic (char *arg)
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{
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int width, height;
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byte *palette;
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char name[MAX_OSPATH], *dot;
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int old_khz;
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// make sure CD isn't playing music
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CDAudio_Stop();
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cl.cinematicframe = 0;
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dot = strstr (arg, ".");
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if (dot && !strcmp (dot, ".pcx"))
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{ // static pcx image
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Com_sprintf (name, sizeof(name), "pics/%s", arg);
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SCR_LoadPCX (name, &cin.pic, &palette, &cin.width, &cin.height);
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cl.cinematicframe = -1;
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cl.cinematictime = 1;
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SCR_EndLoadingPlaque ();
|
|
cls.state = ca_active;
|
|
if (!cin.pic)
|
|
{
|
|
Com_Printf ("%s not found.\n", name);
|
|
cl.cinematictime = 0;
|
|
}
|
|
else
|
|
{
|
|
memcpy (cl.cinematicpalette, palette, sizeof(cl.cinematicpalette));
|
|
Z_Free (palette);
|
|
}
|
|
return;
|
|
}
|
|
|
|
Com_sprintf (name, sizeof(name), "video/%s", arg);
|
|
FS_FOpenFile (name, &cl.cinematic_file);
|
|
if (!cl.cinematic_file)
|
|
{
|
|
// Com_Error (ERR_DROP, "Cinematic %s not found.\n", name);
|
|
SCR_FinishCinematic ();
|
|
cl.cinematictime = 0; // done
|
|
return;
|
|
}
|
|
|
|
SCR_EndLoadingPlaque ();
|
|
|
|
cls.state = ca_active;
|
|
|
|
FS_Read (&width, 4, cl.cinematic_file);
|
|
FS_Read (&height, 4, cl.cinematic_file);
|
|
cin.width = LittleLong(width);
|
|
cin.height = LittleLong(height);
|
|
|
|
FS_Read (&cin.s_rate, 4, cl.cinematic_file);
|
|
cin.s_rate = LittleLong(cin.s_rate);
|
|
FS_Read (&cin.s_width, 4, cl.cinematic_file);
|
|
cin.s_width = LittleLong(cin.s_width);
|
|
FS_Read (&cin.s_channels, 4, cl.cinematic_file);
|
|
cin.s_channels = LittleLong(cin.s_channels);
|
|
|
|
Huff1TableInit ();
|
|
|
|
// switch up to 22 khz sound if necessary
|
|
old_khz = Cvar_VariableValue ("s_khz");
|
|
if (old_khz != cin.s_rate/1000)
|
|
{
|
|
cin.restart_sound = true;
|
|
Cvar_SetValue ("s_khz", cin.s_rate/1000);
|
|
CL_Snd_Restart_f ();
|
|
Cvar_SetValue ("s_khz", old_khz);
|
|
}
|
|
|
|
cl.cinematicframe = 0;
|
|
cin.pic = SCR_ReadNextFrame ();
|
|
cl.cinematictime = Sys_Milliseconds ();
|
|
}
|