Funko sources as released by Rotacak.HEADmaster

1 files changed, 266 insertions, 0 deletions

diff --git a/src/client/snd_mem.c b/src/client/snd_mem.c
new file mode 100644
index 0000000..decab20
--- /dev/null
+++ b/src/client/snd_mem.c
@@ -0,0 +1,266 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+/*****************************************************************************
+ * name:		snd_mem.c
+ *
+ * desc:		sound caching
+ *
+ * $Archive: /MissionPack/code/client/snd_mem.c $
+ *
+ *****************************************************************************/
+
+#include "snd_local.h"
+#include "snd_codec.h"
+
+#define DEF_COMSOUNDMEGS "8"
+
+/*
+===============================================================================
+
+memory management
+
+===============================================================================
+*/
+
+static	sndBuffer	*buffer = NULL;
+static	sndBuffer	*freelist = NULL;
+static	int inUse = 0;
+static	int totalInUse = 0;
+
+short *sfxScratchBuffer = NULL;
+sfx_t *sfxScratchPointer = NULL;
+int	   sfxScratchIndex = 0;
+
+void	SND_free(sndBuffer *v) {
+	*(sndBuffer **)v = freelist;
+	freelist = (sndBuffer*)v;
+	inUse += sizeof(sndBuffer);
+}
+
+sndBuffer*	SND_malloc(void) {
+	sndBuffer *v;
+redo:
+	if (freelist == NULL) {
+		S_FreeOldestSound();
+		goto redo;
+	}
+
+	inUse -= sizeof(sndBuffer);
+	totalInUse += sizeof(sndBuffer);
+
+	v = freelist;
+	freelist = *(sndBuffer **)freelist;
+	v->next = NULL;
+	return v;
+}
+
+void SND_setup(void) {
+	sndBuffer *p, *q;
+	cvar_t	*cv;
+	int scs;
+
+	cv = Cvar_Get( "com_soundMegs", DEF_COMSOUNDMEGS, CVAR_LATCH | CVAR_ARCHIVE );
+
+	scs = (cv->integer*1536);
+
+	buffer = malloc(scs*sizeof(sndBuffer) );
+	// allocate the stack based hunk allocator
+	sfxScratchBuffer = malloc(SND_CHUNK_SIZE * sizeof(short) * 4);	//Hunk_Alloc(SND_CHUNK_SIZE * sizeof(short) * 4);
+	sfxScratchPointer = NULL;
+
+	inUse = scs*sizeof(sndBuffer);
+	p = buffer;;
+	q = p + scs;
+	while (--q > p)
+		*(sndBuffer **)q = q-1;
+	
+	*(sndBuffer **)q = NULL;
+	freelist = p + scs - 1;
+
+	Com_Printf("Sound memory manager started\n");
+}
+
+/*
+================
+ResampleSfx
+
+resample / decimate to the current source rate
+================
+*/
+static void ResampleSfx( sfx_t *sfx, int inrate, int inwidth, byte *data, qboolean compressed ) {
+	int		outcount;
+	int		srcsample;
+	float	stepscale;
+	int		i;
+	int		sample, samplefrac, fracstep;
+	int			part;
+	sndBuffer	*chunk;
+	
+	stepscale = (float)inrate / dma.speed;	// this is usually 0.5, 1, or 2
+
+	outcount = sfx->soundLength / stepscale;
+	sfx->soundLength = outcount;
+
+	samplefrac = 0;
+	fracstep = stepscale * 256;
+	chunk = sfx->soundData;
+
+	for (i=0 ; i<outcount ; i++)
+	{
+		srcsample = samplefrac >> 8;
+		samplefrac += fracstep;
+		if( inwidth == 2 ) {
+			sample = ( ((short *)data)[srcsample] );
+		} else {
+			sample = (int)( (unsigned char)(data[srcsample]) - 128) << 8;
+		}
+		part  = (i&(SND_CHUNK_SIZE-1));
+		if (part == 0) {
+			sndBuffer	*newchunk;
+			newchunk = SND_malloc();
+			if (chunk == NULL) {
+				sfx->soundData = newchunk;
+			} else {
+				chunk->next = newchunk;
+			}
+			chunk = newchunk;
+		}
+
+		chunk->sndChunk[part] = sample;
+	}
+}
+
+/*
+================
+ResampleSfx
+
+resample / decimate to the current source rate
+================
+*/
+static int ResampleSfxRaw( short *sfx, int inrate, int inwidth, int samples, byte *data ) {
+	int			outcount;
+	int			srcsample;
+	float		stepscale;
+	int			i;
+	int			sample, samplefrac, fracstep;
+	
+	stepscale = (float)inrate / dma.speed;	// this is usually 0.5, 1, or 2
+
+	outcount = samples / stepscale;
+
+	samplefrac = 0;
+	fracstep = stepscale * 256;
+
+	for (i=0 ; i<outcount ; i++)
+	{
+		srcsample = samplefrac >> 8;
+		samplefrac += fracstep;
+		if( inwidth == 2 ) {
+			sample = LittleShort ( ((short *)data)[srcsample] );
+		} else {
+			sample = (int)( (unsigned char)(data[srcsample]) - 128) << 8;
+		}
+		sfx[i] = sample;
+	}
+	return outcount;
+}
+
+//=============================================================================
+
+/*
+==============
+S_LoadSound
+
+The filename may be different than sfx->name in the case
+of a forced fallback of a player specific sound
+==============
+*/
+qboolean S_LoadSound( sfx_t *sfx )
+{
+	byte	*data;
+	short	*samples;
+	snd_info_t	info;
+//	int		size;
+
+	// player specific sounds are never directly loaded
+	if ( sfx->soundName[0] == '*') {
+		return qfalse;
+	}
+
+	// load it in
+	data = S_CodecLoad(sfx->soundName, &info);
+	if(!data)
+		return qfalse;
+
+	if ( info.width == 1 ) {
+		Com_DPrintf(S_COLOR_YELLOW "WARNING: %s is a 8 bit wav file\n", sfx->soundName);
+	}
+
+	if ( info.rate != 22050 ) {
+		Com_DPrintf(S_COLOR_YELLOW "WARNING: %s is not a 22kHz wav file\n", sfx->soundName);
+	}
+
+	samples = Hunk_AllocateTempMemory(info.samples * sizeof(short) * 2);
+
+	sfx->lastTimeUsed = Com_Milliseconds()+1;
+
+	// each of these compression schemes works just fine
+	// but the 16bit quality is much nicer and with a local
+	// install assured we can rely upon the sound memory
+	// manager to do the right thing for us and page
+	// sound in as needed
+
+	if( sfx->soundCompressed == qtrue) {
+		sfx->soundCompressionMethod = 1;
+		sfx->soundData = NULL;
+		sfx->soundLength = ResampleSfxRaw( samples, info.rate, info.width, info.samples, data + info.dataofs );
+		S_AdpcmEncodeSound(sfx, samples);
+#if 0
+	} else if (info.samples>(SND_CHUNK_SIZE*16) && info.width >1) {
+		sfx->soundCompressionMethod = 3;
+		sfx->soundData = NULL;
+		sfx->soundLength = ResampleSfxRaw( samples, info.rate, info.width, info.samples, (data + info.dataofs) );
+		encodeMuLaw( sfx, samples);
+	} else if (info.samples>(SND_CHUNK_SIZE*6400) && info.width >1) {
+		sfx->soundCompressionMethod = 2;
+		sfx->soundData = NULL;
+		sfx->soundLength = ResampleSfxRaw( samples, info.rate, info.width, info.samples, (data + info.dataofs) );
+		encodeWavelet( sfx, samples);
+#endif
+	} else {
+		sfx->soundCompressionMethod = 0;
+		sfx->soundLength = info.samples;
+		sfx->soundData = NULL;
+		ResampleSfx( sfx, info.rate, info.width, data + info.dataofs, qfalse );
+	}
+	
+	Hunk_FreeTempMemory(samples);
+	Z_Free(data);
+
+	return qtrue;
+}
+
+void S_DisplayFreeMemory(void) {
+	Com_Printf("%d bytes free sound buffer memory, %d total used\n", inUse, totalInUse);
+}