From 8a528c35487d8c633de166919522e8fe1453ead4 Mon Sep 17 00:00:00 2001
From: halleyscometsw <halleyscometsw@51a99a44-fe44-0410-b1ba-c3e57ba2b86b>
Date: Fri, 11 Jul 2008 00:41:21 +0000
Subject: [PATCH] .nwa

git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@301 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
---
 readme.txt                |  1 +
 src/Makefile              |  3 +-
 src/libvgmstream.vcproj   |  4 ++
 src/meta/Makefile.unix.am |  2 +-
 src/meta/meta.h           |  2 +
 src/meta/nwa.c            | 84 +++++++++++++++++++++++++++++++++++++++
 src/vgmstream.c           |  4 ++
 src/vgmstream.h           |  1 +
 winamp/in_vgmstream.c     |  1 +
 9 files changed, 100 insertions(+), 2 deletions(-)
 create mode 100644 src/meta/nwa.c

diff --git a/readme.txt b/readme.txt
index d2a59ef0..ba86f86e 100644
--- a/readme.txt
+++ b/readme.txt
@@ -103,6 +103,7 @@ File types supported by this version of vgmstream:
 - .svs (PS2 ADPCM)
 - .wav (8/16 bit PCM)
 - .pos (8/16 bit PCM)
+- .nwa (16 bit PCM)
 
 Enjoy!
 -hcs
diff --git a/src/Makefile b/src/Makefile
index 11f085c5..f9fccb03 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -69,7 +69,8 @@ META_OBJS=meta/adx_header.o \
     meta/ivb.o \
     meta/svs.o \
     meta/riff.o \
-    meta/pos.o
+    meta/pos.o \
+    meta/nwa.o
 
 OBJECTS=vgmstream.o streamfile.o util.o $(CODING_OBJS) $(LAYOUT_OBJS) $(META_OBJS)
 
diff --git a/src/libvgmstream.vcproj b/src/libvgmstream.vcproj
index 6b0c03d7..2c01628d 100644
--- a/src/libvgmstream.vcproj
+++ b/src/libvgmstream.vcproj
@@ -374,6 +374,10 @@
 					RelativePath=".\meta\pos.c"
 					>
 				</File>
+				<File
+					RelativePath=".\meta\nwa.c"
+					>
+				</File>
 			</Filter>
 		</Filter>
 		<Filter
diff --git a/src/meta/Makefile.unix.am b/src/meta/Makefile.unix.am
index a3811a35..4762eca8 100644
--- a/src/meta/Makefile.unix.am
+++ b/src/meta/Makefile.unix.am
@@ -4,6 +4,6 @@ AM_CFLAGS = -Wall @CFLAGS@ -I$(top_builddir) -I$(top_srcdir)
 AM_MAKEFLAGS=-f Makefile.unix
 
 libmeta_la_LDFLAGS = 
-libmeta_la_SOURCES = Cstr.c adx_header.c afc_header.c agsc.c ast.c brstm.c ea_header.c gcsw.c halpst.c nds_strm.c ngc_adpdtk.c ngc_caf.c ngc_dsp_std.c ps2_ads.c ps2_exst.c ps2_ild.c ps2_int.c ps2_mib.c ps2_mic.c ps2_npsf.c ps2_pnb.c ps2_rxw.c ps2_str.c ps2_svag.c ps2_vag.c ps2_vpk.c psx_cdxa.c raw.c rs03.c rsf.c rwsd.c psx_gms.c xbox_xwav.c xbox_wavm.c genh.c ogg_vorbis_file.c ps2_bmdx.c aifc.c str_snds.c ws_aud.c ahx.c ivb.c svs.c riff.c pos.c
+libmeta_la_SOURCES = Cstr.c adx_header.c afc_header.c agsc.c ast.c brstm.c ea_header.c gcsw.c halpst.c nds_strm.c ngc_adpdtk.c ngc_caf.c ngc_dsp_std.c ps2_ads.c ps2_exst.c ps2_ild.c ps2_int.c ps2_mib.c ps2_mic.c ps2_npsf.c ps2_pnb.c ps2_rxw.c ps2_str.c ps2_svag.c ps2_vag.c ps2_vpk.c psx_cdxa.c raw.c rs03.c rsf.c rwsd.c psx_gms.c xbox_xwav.c xbox_wavm.c genh.c ogg_vorbis_file.c ps2_bmdx.c aifc.c str_snds.c ws_aud.c ahx.c ivb.c svs.c riff.c pos.c nwa.c
 
 EXTRA_DIST = meta.h
diff --git a/src/meta/meta.h b/src/meta/meta.h
index 31dcf1ea..ac22faff 100644
--- a/src/meta/meta.h
+++ b/src/meta/meta.h
@@ -111,4 +111,6 @@ VGMSTREAM * init_vgmstream_riff(STREAMFILE * streamFile);
 
 VGMSTREAM * init_vgmstream_pos(STREAMFILE * streamFile);
 
+VGMSTREAM * init_vgmstream_nwa(STREAMFILE * streamFile);
+
 #endif
diff --git a/src/meta/nwa.c b/src/meta/nwa.c
new file mode 100644
index 00000000..60addcae
--- /dev/null
+++ b/src/meta/nwa.c
@@ -0,0 +1,84 @@
+#include "meta.h"
+#include "../util.h"
+
+/* NWA - Visual Arts streams
+ *
+ * This can apparently get a lot more complicated, I'm only handling the
+ * raw PCM case at the moment (until I see something else).
+ *
+ * Kazunori "jagarl" Ueno's nwatowav was helpful, and will probably be used
+ * to write coding support if it comes to that.
+ */
+
+VGMSTREAM * init_vgmstream_nwa(STREAMFILE *streamFile) {
+    VGMSTREAM * vgmstream = NULL;
+    char filename[260];
+	int i;
+    int channel_count;
+
+    /* check extension, case insensitive */
+    streamFile->get_name(streamFile,filename,sizeof(filename));
+    if (strcasecmp("nwa",filename_extension(filename))) goto fail;
+
+    /* check that we're using raw pcm */
+    if (
+            read_32bitLE(0x08,streamFile)!=-1 || /* compression level */
+            read_32bitLE(0x10,streamFile)!=0  || /* block count */
+            read_32bitLE(0x18,streamFile)!=0  || /* compressed data size */
+            read_32bitLE(0x20,streamFile)!=0  || /* block size */
+            read_32bitLE(0x24,streamFile)!=0     /* restsize */
+       ) goto fail;
+
+    channel_count = read_16bitLE(0x00,streamFile);
+
+    /* build the VGMSTREAM */
+    vgmstream = allocate_vgmstream(channel_count,0);
+    if (!vgmstream) goto fail;
+
+    /* fill in the vital statistics */
+    vgmstream->channels = channel_count;
+    vgmstream->sample_rate = read_32bitLE(0x04,streamFile);
+    switch (read_16bitLE(0x02,streamFile)) {
+        case 16:
+            vgmstream->coding_type = coding_PCM16LE;
+            vgmstream->interleave_block_size = 2;
+            break;
+        case 8:
+            vgmstream->coding_type = coding_PCM8;
+            vgmstream->interleave_block_size = 1;
+            break;
+        default:
+            goto fail;
+    }
+    vgmstream->num_samples = read_32bitLE(0x1c,streamFile)/channel_count;
+    if (channel_count > 1) {
+        vgmstream->layout_type = layout_interleave;
+    } else {
+        vgmstream->layout_type = layout_none;
+    }
+    vgmstream->meta_type = meta_NWA;
+
+    /* open the file for reading by each channel */
+    {
+        STREAMFILE *chstreamfile;
+
+        /* have both channels use the same buffer, as interleave is so small */
+        chstreamfile = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
+        
+        if (!chstreamfile) goto fail;
+
+        for (i=0;i<2;i++) {
+            vgmstream->ch[i].streamfile = chstreamfile;
+
+            vgmstream->ch[i].channel_start_offset=
+                vgmstream->ch[i].offset=0x2c+(off_t)(i*vgmstream->interleave_block_size);
+        }
+    }
+
+    return vgmstream;
+
+    /* clean up anything we may have opened */
+fail:
+    if (vgmstream) close_vgmstream(vgmstream);
+    return NULL;
+}
diff --git a/src/vgmstream.c b/src/vgmstream.c
index 2ab41507..3dc9f2fc 100644
--- a/src/vgmstream.c
+++ b/src/vgmstream.c
@@ -71,6 +71,7 @@ VGMSTREAM * (*init_vgmstream_fcns[])(STREAMFILE *streamFile) = {
     init_vgmstream_svs,
     init_vgmstream_riff,
     init_vgmstream_pos,
+    init_vgmstream_nwa,
 };
 
 #define INIT_VGMSTREAM_FCNS (sizeof(init_vgmstream_fcns)/sizeof(init_vgmstream_fcns[0]))
@@ -1114,6 +1115,9 @@ void describe_vgmstream(VGMSTREAM * vgmstream, char * desc, int length) {
         case meta_RIFF_WAVE_POS:
             snprintf(temp,TEMPSIZE,"RIFF WAVE header and .pos for looping");
             break;
+        case meta_NWA:
+            snprintf(temp,TEMPSIZE,"Visual Art's NWA header");
+            break;
         default:
             snprintf(temp,TEMPSIZE,"THEY SHOULD HAVE SENT A POET");
     }
diff --git a/src/vgmstream.h b/src/vgmstream.h
index 7e4381d1..b0fae4b3 100644
--- a/src/vgmstream.h
+++ b/src/vgmstream.h
@@ -182,6 +182,7 @@ typedef enum {
 #endif
     meta_RIFF_WAVE,         /* RIFF, for WAVs */
     meta_RIFF_WAVE_POS,     /* .wav + .pos for looping */
+    meta_NWA,               /* Visual Art's NWA */
 } meta_t;
 
 typedef struct {
diff --git a/winamp/in_vgmstream.c b/winamp/in_vgmstream.c
index 6284d497..cd3e5b27 100644
--- a/winamp/in_vgmstream.c
+++ b/winamp/in_vgmstream.c
@@ -126,6 +126,7 @@ char * extension_list[] = {
 	"amts\0AMTS Audio File (*.AMTS)\0",
     "svs\0SVS Audio File (*.SVS)\0",
     "pos\0POS Audio File (*.POS)\0",
+    "nwa\0NWA Audio File (*.NWA)\0",
 };
 
 void about(HWND hwndParent) {