Added mikmod library, also added it to SDL_mixer

2010-11-12 11:58:53 +02:00
parent 48c1f1aa0a
commit b9e424ea10
55 changed files with 27358 additions and 4 deletions
--- a/project/jni/mikmod/playercode/mwav.c
+++ b/project/jni/mikmod/playercode/mwav.c
@@ -0,0 +1,198 @@
+/*	MikMod sound library
+	(c) 1998, 1999, 2000, 2001 Miodrag Vallat and others - see file AUTHORS
+	for complete list.
+
+	This library is free software; you can redistribute it and/or modify
+	it under the terms of the GNU Library General Public License as
+	published by the Free Software Foundation; either version 2 of
+	the License, or (at your option) any later version.
+ 
+	This program 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 Library General Public License for more details.
+ 
+	You should have received a copy of the GNU Library General Public
+	License along with this library; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+	02111-1307, USA.
+*/
+
+/*==============================================================================
+
+  $Id: mwav.c,v 1.1.1.1 2004/01/21 01:36:35 raph Exp $
+
+  WAV sample loader
+
+==============================================================================*/
+
+/*
+   FIXME: Stereo .WAV files are not yet supported as samples.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include <string.h>
+
+#include "mikmod_internals.h"
+
+#ifdef SUNOS
+extern int fprintf(FILE *, const char *, ...);
+#endif
+
+typedef struct WAV {
+	CHAR  rID[4];
+	ULONG rLen;
+	CHAR  wID[4];
+	CHAR  fID[4];
+	ULONG fLen;
+	UWORD wFormatTag;
+	UWORD nChannels;
+	ULONG nSamplesPerSec;
+	ULONG nAvgBytesPerSec;
+	UWORD nBlockAlign;
+	UWORD nFormatSpecific;
+} WAV;
+
+SAMPLE* Sample_LoadGeneric_internal(MREADER* reader)
+{
+	SAMPLE *si=NULL;
+	WAV wh;
+	BOOL have_fmt=0;
+
+	/* read wav header */
+	_mm_read_string(wh.rID,4,reader);
+	wh.rLen = _mm_read_I_ULONG(reader);
+	_mm_read_string(wh.wID,4,reader);
+
+	/* check for correct header */
+	if(_mm_eof(reader)|| memcmp(wh.rID,"RIFF",4) || memcmp(wh.wID,"WAVE",4)) {
+		_mm_errno = MMERR_UNKNOWN_WAVE_TYPE;
+		return NULL;
+	}
+
+	/* scan all RIFF blocks until we find the sample data */
+	for(;;) {
+		CHAR dID[4];
+		ULONG len,start;
+
+		_mm_read_string(dID,4,reader);
+		len = _mm_read_I_ULONG(reader);
+		/* truncated file ? */
+		if (_mm_eof(reader)) {
+			_mm_errno=MMERR_UNKNOWN_WAVE_TYPE;
+			return NULL;
+		}
+		start = _mm_ftell(reader);
+
+		/* sample format block
+		   should be present only once and before a data block */
+		if(!memcmp(dID,"fmt ",4)) {
+			wh.wFormatTag      = _mm_read_I_UWORD(reader);
+			wh.nChannels       = _mm_read_I_UWORD(reader);
+			wh.nSamplesPerSec  = _mm_read_I_ULONG(reader);
+			wh.nAvgBytesPerSec = _mm_read_I_ULONG(reader);
+			wh.nBlockAlign     = _mm_read_I_UWORD(reader);
+			wh.nFormatSpecific = _mm_read_I_UWORD(reader);
+
+#ifdef MIKMOD_DEBUG
+			fprintf(stderr,"\rwavloader : wFormatTag=%04x blockalign=%04x nFormatSpc=%04x\n",
+			        wh.wFormatTag,wh.nBlockAlign,wh.nFormatSpecific);
+#endif
+
+			if((have_fmt)||(wh.nChannels>1)) {
+				_mm_errno=MMERR_UNKNOWN_WAVE_TYPE;
+				return NULL;
+			}
+			have_fmt=1;
+		} else
+		/* sample data block
+		   should be present only once and after a format block */
+		  if(!memcmp(dID,"data",4)) {
+			if(!have_fmt) {
+				_mm_errno=MMERR_UNKNOWN_WAVE_TYPE;
+				return NULL;
+			}
+			if(!(si=(SAMPLE*)_mm_malloc(sizeof(SAMPLE)))) return NULL;
+			si->speed  = wh.nSamplesPerSec/wh.nChannels;
+			si->volume = 64;
+			si->length = len;
+			if(wh.nBlockAlign == 2) {
+				si->flags    = SF_16BITS | SF_SIGNED;
+				si->length >>= 1;
+			}
+			si->inflags = si->flags;
+			SL_RegisterSample(si,MD_SNDFX,reader);
+			SL_LoadSamples();
+			
+			/* skip any other remaining blocks - so in case of repeated sample
+			   fragments, we'll return the first anyway instead of an error */
+			break;
+		}
+		/* onto next block */
+		_mm_fseek(reader,start+len,SEEK_SET);
+		if (_mm_eof(reader))
+			break;
+	}
+
+	return si;
+}
+
+MIKMODAPI SAMPLE* Sample_LoadGeneric(MREADER* reader)
+{
+	SAMPLE* result;
+
+	MUTEX_LOCK(vars);
+	result=Sample_LoadGeneric_internal(reader);
+	MUTEX_UNLOCK(vars);
+
+	return result;
+}
+
+MIKMODAPI SAMPLE* Sample_LoadFP(FILE *fp)
+{
+	SAMPLE* result=NULL;
+	MREADER* reader;
+
+	if((reader=_mm_new_file_reader(fp))) {
+		result=Sample_LoadGeneric(reader);
+		_mm_delete_file_reader(reader);
+	}
+	return result;
+}
+
+MIKMODAPI SAMPLE* Sample_Load(CHAR* filename)
+{
+	FILE *fp;
+	SAMPLE *si=NULL;
+
+	if(!(md_mode & DMODE_SOFT_SNDFX)) return NULL;
+	if((fp=_mm_fopen(filename,"rb"))) {
+		si = Sample_LoadFP(fp);
+		_mm_fclose(fp);
+	}
+	return si;
+}
+
+MIKMODAPI void Sample_Free(SAMPLE* si)
+{
+	if(si) {
+		MD_SampleUnload(si->handle);
+		free(si);
+	}
+}
+
+void Sample_Free_internal(SAMPLE *si)
+{
+	MUTEX_LOCK(vars);
+	Sample_Free(si);
+	MUTEX_UNLOCK(vars);
+}
+
+/* ex:set ts=4: */