534 lines
10 KiB
C
534 lines
10 KiB
C
#include "quakedef.h"
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#ifndef NOMEDIA
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typedef struct
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{
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qbyte *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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qbyte *pic;
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qbyte *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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int cinematictime;
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qboolean cinematicpalette_active;
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qbyte cinematicpalette[768];
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FILE *cinematic_file;
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int cinematicframe;
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} cinematics_t;
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cinematics_t cin;
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void CIN_StopCinematic (void)
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{
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Media_PlayFilm("");
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cin.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 (cin.cinematicpalette_active)
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{
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// re.CinematicSetPalette(NULL);
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cin.cinematicpalette_active = false;
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}
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if (cin.cinematic_file)
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{
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fclose (cin.cinematic_file);
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cin.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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S_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 CIN_FinishCinematic (void)
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{
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// tell the server to advance to the next map / cinematic
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if (cls.state == ca_active)
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{
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CL_SendClientCommand("nextserver %i", cl.servercount);
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}
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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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static 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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static 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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qbyte 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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fread (counts, 1, sizeof(counts), cin.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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static cblock_t Huff1Decompress (cblock_t in)
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{
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qbyte *input;
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qbyte *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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Con_Printf ("Decompression overread by %i", (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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qbyte *CIN_ReadNextFrame (void)
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{
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int r;
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int command;
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qbyte samples[22050/14*4];
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qbyte compressed[0x20000];
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int size;
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qbyte *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, cin.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, cin.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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fread (cin.cinematicpalette, 1, sizeof(cin.cinematicpalette), cin.cinematic_file);
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cin.cinematicpalette_active=0; // dubious.... exposes an edge case
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}
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// decompress the next frame
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fread (&size, 1, 4, cin.cinematic_file);
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size = LittleLong(size);
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if (size > sizeof(compressed) || size < 1)
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Host_Error ("Bad compressed frame size");
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fread (compressed, 1, size, cin.cinematic_file);
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// read sound
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start = cin.cinematicframe*cin.s_rate/14;
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end = (cin.cinematicframe+1)*cin.s_rate/14;
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count = end - start;
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fread (samples, 1, count*cin.s_width*cin.s_channels, cin.cinematic_file);
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S_RawAudio (0, samples, cin.s_rate, count, cin.s_channels, cin.s_width);
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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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cin.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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qboolean CIN_DrawCinematic (void);
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qboolean CIN_RunCinematic (void)
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{
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int frame;
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if (cin.cinematictime <= 0)
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{
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CIN_StopCinematic ();
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return false;
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}
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if (cin.cinematictime-3 > realtime*1000)
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cin.cinematictime = realtime*1000;
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/* if (key_dest != key_game)
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{ // pause if menu or console is up
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cin.cinematictime = realtime - cin.cinematicframe*1000/14;
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return true;
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}*/
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frame = (realtime*1000 - cin.cinematictime)*14/1000;
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if (frame <= cin.cinematicframe)
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return true;
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if (frame > cin.cinematicframe+1)
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{
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Con_Printf ("Dropped frame: %i > %i\n", frame, cin.cinematicframe+1);
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cin.cinematictime = realtime*1000 - cin.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 = CIN_ReadNextFrame ();
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if (!cin.pic_pending)
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{
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CIN_StopCinematic ();
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CIN_FinishCinematic ();
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cin.cinematictime = 1; // hack to get the black screen behind loading
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SCR_BeginLoadingPlaque ();
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cin.cinematictime = 0;
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return false;
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}
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return true;
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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 CIN_DrawCinematic (void)
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{
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if (cin.cinematictime <= 0)
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{
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return false;
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}
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if (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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cin.cinematicpalette_active = false;
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// return true;
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}
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if (!cin.cinematicpalette_active)
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{
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// re.CinematicSetPalette(cl.cinematicpalette);
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cin.cinematicpalette_active = true;
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}
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if (!cin.pic)
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return true;
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Media_ShowFrame8bit(cin.pic, cin.width, cin.height, cin.cinematicpalette);
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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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qboolean CIN_PlayCinematic (char *arg)
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{
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int width, height;
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char name[MAX_OSPATH];
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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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cin.cinematicframe = 0;
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COM_FOpenFile (arg, &cin.cinematic_file);
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if (!cin.cinematic_file)
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{
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_snprintf (name, sizeof(name), "video/%s", arg);
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COM_FOpenFile (name, &cin.cinematic_file);
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}
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if (!cin.cinematic_file)
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{
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// Com_Error (ERR_DROP, "Cinematic %s not found.\n", name);
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CIN_FinishCinematic ();
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cin.cinematictime = 0; // done
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return false;
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}
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SCR_EndLoadingPlaque ();
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fread (&width, 1, 4, cin.cinematic_file);
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fread (&height, 1, 4, cin.cinematic_file);
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cin.width = LittleLong(width);
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cin.height = LittleLong(height);
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fread (&cin.s_rate, 1, 4, cin.cinematic_file);
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cin.s_rate = LittleLong(cin.s_rate);
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fread (&cin.s_width, 1, 4, cin.cinematic_file);
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cin.s_width = LittleLong(cin.s_width);
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fread (&cin.s_channels, 1, 4, cin.cinematic_file);
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cin.s_channels = LittleLong(cin.s_channels);
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Huff1TableInit ();
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// switch up to 22 khz sound if necessary
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/*old_khz = Cvar_VariableValue ("snd_khz");
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if (old_khz != cin.s_rate/1000)
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{
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cin.restart_sound = true;
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Cvar_SetValue ("snd_khz", cin.s_rate/1000);
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S_Restart_f ();
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Cvar_SetValue ("snd_khz", old_khz);
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}*/
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cin.cinematicframe = 0;
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cin.pic = CIN_ReadNextFrame ();
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cin.cinematictime = Sys_DoubleTime ()*1000+0.001;
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return true;
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}
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#endif
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