From 272a23490d2f14a80371a759b3ada02ca20e3fd0 Mon Sep 17 00:00:00 2001
From: bnnm <bananaman255@gmail.com>
Date: Sun, 26 May 2019 22:55:37 +0200
Subject: [PATCH] Add FSB5 .bank [Shantae: Half-Genie Hero (Switch)]

---
 src/formats.c                    |  1 +
 src/libvgmstream.vcproj          | 12 ++++---
 src/libvgmstream.vcxproj         |  1 +
 src/libvgmstream.vcxproj.filters |  3 ++
 src/meta/fsb5_fev.c              | 54 ++++++++++++++++++++++++++++++++
 src/meta/meta.h                  |  2 ++
 src/vgmstream.c                  |  1 +
 7 files changed, 70 insertions(+), 4 deletions(-)
 create mode 100644 src/meta/fsb5_fev.c

diff --git a/src/formats.c b/src/formats.c
index 720b22ea..be29f374 100644
--- a/src/formats.c
+++ b/src/formats.c
@@ -73,6 +73,7 @@ static const char* extension_list[] = {
     "b1s",
     "baf",
     "baka",
+    "bank",
     "bar",
     "bcstm",
     "bcwav",
diff --git a/src/libvgmstream.vcproj b/src/libvgmstream.vcproj
index 99b9fafd..577084f7 100644
--- a/src/libvgmstream.vcproj
+++ b/src/libvgmstream.vcproj
@@ -608,10 +608,14 @@
 					RelativePath=".\meta\fsb.c"
 					>
 				</File>
-				<File
-					RelativePath=".\meta\fsb5.c"
-					>
-				</File>
+                <File
+                    RelativePath=".\meta\fsb5.c"
+                    >
+                </File>
+                <File
+                    RelativePath=".\meta\fsb5_fev.c"
+                    >
+                </File>
                 <File
                     RelativePath=".\meta\fsb_encrypted.c"
                     >
diff --git a/src/libvgmstream.vcxproj b/src/libvgmstream.vcxproj
index 25ceb131..ff20d5ef 100644
--- a/src/libvgmstream.vcxproj
+++ b/src/libvgmstream.vcxproj
@@ -275,6 +275,7 @@
     <ClCompile Include="meta\flx.c" />
     <ClCompile Include="meta\fsb.c" />
     <ClCompile Include="meta\fsb5.c" />
+    <ClCompile Include="meta\fsb5_fev.c" />
     <ClCompile Include="meta\fsb_encrypted.c" />
     <ClCompile Include="meta\gca.c" />
     <ClCompile Include="meta\gcsw.c" />
diff --git a/src/libvgmstream.vcxproj.filters b/src/libvgmstream.vcxproj.filters
index ef23711f..ce1ec309 100644
--- a/src/libvgmstream.vcxproj.filters
+++ b/src/libvgmstream.vcxproj.filters
@@ -391,6 +391,9 @@
     <ClCompile Include="meta\fsb5.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="meta\fsb5_fev.c">
+      <Filter>meta\Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="meta\fsb_encrypted.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
diff --git a/src/meta/fsb5_fev.c b/src/meta/fsb5_fev.c
new file mode 100644
index 00000000..74b1dba4
--- /dev/null
+++ b/src/meta/fsb5_fev.c
@@ -0,0 +1,54 @@
+#include "meta.h"
+#include "../coding/coding.h"
+
+/* FEV+FSB5 container [Shantae: Half-Genie Hero (Switch)] */
+VGMSTREAM * init_vgmstream_fsb5_fev_bank(STREAMFILE *streamFile) {
+    VGMSTREAM * vgmstream = NULL;
+    STREAMFILE *temp_streamFile = NULL;
+    off_t subfile_offset, chunk_offset, first_offset = 0x0c;
+    size_t subfile_size, chunk_size;
+
+
+    /* checks */
+    if (!check_extensions(streamFile, "bank"))
+        goto fail;
+
+    if (read_32bitBE(0x00,streamFile) != 0x52494646) /* "RIFF" */
+        goto fail;
+    if (read_32bitBE(0x08,streamFile) != 0x46455620) /* "FEV " */
+        goto fail;
+
+    /* .fev is an event format referencing various external .fsb, but FMOD can bake .fev and .fsb to
+     * form a .bank, which is the format we support here (regular .fev is complex and not very interesting).
+     * Format is RIFF with FMT (main), LIST (config) and SND (FSB5 data), we want the FSB5 offset inside LIST */
+    if (!find_chunk_le(streamFile, 0x4C495354,first_offset,0, &chunk_offset,NULL)) /* "LIST" */
+        goto fail;
+
+    if (read_32bitBE(chunk_offset+0x00,streamFile) != 0x50524F4A || /* "PROJ" */
+        read_32bitBE(chunk_offset+0x04,streamFile) != 0x424E4B49)   /* "BNKI" */
+        goto fail; /* event .fev has "OBCT" instead of "BNKI" */
+
+    /* inside BNKI is a bunch of LIST each with event subchunks and finally the fsb offset */
+    first_offset = chunk_offset + 0x04;
+    if (!find_chunk_le(streamFile, 0x534E4448,first_offset,0, &chunk_offset,&chunk_size)) /* "SNDH" */
+        goto fail;
+
+    if (chunk_size != 0x0c)
+        goto fail; /* assuming only one FSB5 is possible */
+    subfile_offset  = read_32bitLE(chunk_offset+0x04,streamFile);
+    subfile_size    = read_32bitLE(chunk_offset+0x08,streamFile);
+
+
+    temp_streamFile = setup_subfile_streamfile(streamFile, subfile_offset,subfile_size, "fsb");
+    if (!temp_streamFile) goto fail;
+
+    vgmstream = init_vgmstream_fsb5(temp_streamFile);
+    close_streamfile(temp_streamFile);
+
+    return vgmstream;
+
+fail:
+    close_streamfile(temp_streamFile);
+    close_vgmstream(vgmstream);
+    return NULL;
+}
diff --git a/src/meta/meta.h b/src/meta/meta.h
index 631eac00..a1111095 100644
--- a/src/meta/meta.h
+++ b/src/meta/meta.h
@@ -852,4 +852,6 @@ VGMSTREAM * init_vgmstream_xwma_konami(STREAMFILE* streamFile);
 
 VGMSTREAM * init_vgmstream_9tav(STREAMFILE* streamFile);
 
+VGMSTREAM * init_vgmstream_fsb5_fev_bank(STREAMFILE * streamFile);
+
 #endif /*_META_H*/
diff --git a/src/vgmstream.c b/src/vgmstream.c
index 4e6c327d..1cd0be53 100644
--- a/src/vgmstream.c
+++ b/src/vgmstream.c
@@ -479,6 +479,7 @@ VGMSTREAM * (*init_vgmstream_functions[])(STREAMFILE *streamFile) = {
     init_vgmstream_msf_konami,
     init_vgmstream_xwma_konami,
     init_vgmstream_9tav,
+    init_vgmstream_fsb5_fev_bank,
 
     /* lowest priority metas (should go after all metas, and TXTH should go before raw formats) */
     init_vgmstream_txth,            /* proper parsers should supersede TXTH, once added */