Add KTSC [Atelier Ryza (PC)]

src/libvgmstream.vcproj

@@ -832,6 +832,10 @@
 					RelativePath=".\meta\kraw.c"
 					>
 				</File>
+                <File
+                    RelativePath=".\meta\ktsc.c"
+                    >
+                </File>
                 <File
                     RelativePath=".\meta\ktsr.c"
                     >

src/libvgmstream.vcxproj

@@ -193,6 +193,7 @@
     <ClCompile Include="meta\imuse.c" />
     <ClCompile Include="meta\ios_psnd.c" />
     <ClCompile Include="meta\kat.c" />
+    <ClCompile Include="meta\ktsc.c" />
     <ClCompile Include="meta\ktsr.c" />
     <ClCompile Include="meta\ktss.c" />
     <ClCompile Include="meta\kwb.c" />

src/libvgmstream.vcxproj.filters

@@ -1747,6 +1747,9 @@
     <ClCompile Include="meta\mogg.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="meta\ktsc.c">
+      <Filter>meta\Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="meta\ktsr.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>

src/meta/ktsc.c

@@ -0,0 +1,60 @@
+#include "meta.h"
+#include "../coding/coding.h"
+#include "../layout/layout.h"
+
+
+/* KTSC - Koei Tecmo KTSR container */
+VGMSTREAM* init_vgmstream_ktsc(STREAMFILE* sf) {
+    VGMSTREAM* vgmstream = NULL;
+    STREAMFILE *temp_sf = NULL;
+    int target_subsong = sf->stream_index, total_subsongs;
+    off_t offset, subfile_offset;
+    size_t subfile_size;
+
+
+    /* checks */
+    /* .ktsl2asbin: common [Atelier Ryza (PC)] */
+    if (!check_extensions(sf, "ktsl2asbin"))
+        goto fail;
+
+    /* KTSC is a container of KTSRs, but can't be extracted easily as they use absolute pointers to the
+     * same stream companion file. KTSRs may have subsongs, but only seem to have 1, so use KTSC's subsongs. */
+    if (read_u32be(0x00, sf) != 0x4B545343) /* "KTSC" */
+        goto fail;
+    if (read_u32be(0x04, sf) != 0x01000001) /* version? */
+        goto fail;
+
+    if (target_subsong == 0) target_subsong = 1;
+    total_subsongs = read_u32le(0x08, sf);
+    if (target_subsong > total_subsongs)
+        goto fail;
+
+    /* 0x0c: CRC(?) table start */
+    offset = read_u32le(0x10, sf);
+    /* 0x14: file size */
+    /* 0x18: header end */
+    /* 0x1c: null */
+    /* 0x20+: CRC(?) table, 1 entry per file */
+
+    subfile_offset = read_u32le(offset + 0x04 * (target_subsong - 1), sf);
+    subfile_size = read_u32le(subfile_offset + 0x1c, sf); /* from header, meh */
+
+    temp_sf = setup_subfile_streamfile(sf, subfile_offset, subfile_size, NULL);
+    if (!temp_sf) goto fail;
+
+    temp_sf->stream_index = 1;
+    vgmstream = init_vgmstream_ktsr(temp_sf);
+    if (!vgmstream) goto fail;
+
+    if (vgmstream->num_streams > 1)
+        goto fail;
+    vgmstream->num_streams = total_subsongs;
+
+    close_streamfile(temp_sf);
+    return vgmstream;
+
+fail:
+    close_streamfile(temp_sf);
+    close_vgmstream(vgmstream);
+    return NULL;
+}

src/meta/ktsr.c

@@ -312,6 +312,7 @@ static int parse_ktsr_subfile(ktsr_header* ktsr, STREAMFILE* sf, off_t offset) {
     switch(type) { /* hash-id? */
 
         case 0x38D0437D: /* external [Nioh (PC), Atelier Ryza (PC)] */
+        case 0xDF92529F: /* external [Atelier Ryza (PC)] */
             /* 08 subtype? (ex. 0x522B86B9)
              * 0c channels
              * 10 ? (always 0x002706B8)

src/meta/meta.h

@@ -907,4 +907,6 @@ VGMSTREAM* init_vgmstream_kat(STREAMFILE* sf);
 
 VGMSTREAM* init_vgmstream_pcm_success(STREAMFILE* sf);
 
+VGMSTREAM* init_vgmstream_ktsc(STREAMFILE* sf);
+
 #endif /*_META_H*/

src/vgmstream.c

@@ -501,6 +501,7 @@ VGMSTREAM * (*init_vgmstream_functions[])(STREAMFILE *streamFile) = {
     init_vgmstream_mups,
     init_vgmstream_kat,
     init_vgmstream_pcm_success,
+    init_vgmstream_ktsc,
 
     /* 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 */