From dc46ab57cf8dd3bdac743a0bb96dbd8d40625735 Mon Sep 17 00:00:00 2001
From: Lilith Naomi Nightingale <yretenai@gmail.com>
Date: Sun, 25 Apr 2021 04:52:27 +0100
Subject: [PATCH] [research] tpGxTexHead

---
 research/bxon.txt                          | 24 -------------
 research/bxon_types/tpArchiveFileParam.txt | 27 +++++++++++++++
 research/bxon_types/tpGxTexHead.txt        | 40 ++++++++++++++++++++++
 research/pack.txt                          |  1 +
 4 files changed, 68 insertions(+), 24 deletions(-)
 create mode 100644 research/bxon_types/tpArchiveFileParam.txt
 create mode 100644 research/bxon_types/tpGxTexHead.txt

diff --git a/research/bxon.txt b/research/bxon.txt
index ad8f46a..61df43a 100644
--- a/research/bxon.txt
+++ b/research/bxon.txt
@@ -9,27 +9,3 @@ header:
     project_id (4)
     rel_offset_typename (4) -> null terminated string
     rel_offset_data (4) -> buffer -> polymorphic based on typename
-
-type tpArchiveFileParam:
-    header:
-        archive_count (4)
-        rel_offset_arc_list (4) -> arc[]
-        xap_count (4)
-        rel_offset_xap_list (4) -> xap[]
-
-    arc:
-        rel_offset_name (4) -> null terminated string
-        rel_offset_flags (4) -> arc_flags; note: you can inline this
-
-    arc_flags:
-        is_streamed (1) note: if 0 decompress the entire arc before slicing
-
-    xap:
-        id (4) note: probably hash
-        rel_offset_name (4) -> null terminated string
-        arc_offset (4) note: shift left by 4.
-        compressed_size (4) note: zstd
-        size (4)
-        buffer_size (4) note: add to size to get total size
-        arc_index (1)
-        is_compressed (1) note: zstd
diff --git a/research/bxon_types/tpArchiveFileParam.txt b/research/bxon_types/tpArchiveFileParam.txt
new file mode 100644
index 0000000..6ffb3a6
--- /dev/null
+++ b/research/bxon_types/tpArchiveFileParam.txt
@@ -0,0 +1,27 @@
+tpArchiveFileParam format
+
+note: everything is aligned to 4 bytes.
+note: rel_offset is from the start of that field.
+
+header:
+    archive_count (4)
+    rel_offset_arc_list (4) -> arc[]
+    xap_count (4)
+    rel_offset_xap_list (4) -> xap[]
+
+arc:
+    rel_offset_name (4) -> null terminated string
+    rel_offset_flags (4) -> arc_flags; note: you can inline this
+
+arc_flags:
+    is_streamed (1) note: if 0 decompress the entire arc before slicing
+
+xap:
+    id (4) note: probably hash
+    rel_offset_name (4) -> null terminated string
+    arc_offset (4) note: shift left by 4.
+    compressed_size (4) note: zstd
+    size (4)
+    buffer_size (4) note: add to size to get total size
+    arc_index (1)
+    is_compressed (1) note: zstd
diff --git a/research/bxon_types/tpGxTexHead.txt b/research/bxon_types/tpGxTexHead.txt
new file mode 100644
index 0000000..c4c0623
--- /dev/null
+++ b/research/bxon_types/tpGxTexHead.txt
@@ -0,0 +1,40 @@
+tpGxTexHead format
+
+note: everything is aligned to 4 bytes.
+note: rel_offset is from the start of that field.
+
+header:
+    width (4)
+    height (4)
+    surfaces (4)
+    rel_offset_imaging (4) -> imaging
+    total_image_size (4)
+    unknown (4) note: probably flags
+    format (4) note: see format_map, maybe 1 byte?
+    mip_surface_count (4)
+    rel_offset_mip_surface (4) -> mip_surface
+
+mip_surface:
+    offset (4)
+    unknown (4)
+    unknown (4) note: seems to be powers of 2?
+    unknown (4)
+    size (4)
+    unknown (4)
+    width (4)
+    height (4)
+    unknown (4)
+    unknown (4) note: seems to be powers of 2?
+
+format_map:
+    0x00010800 = R8G8B8A8_UNORM
+    0x00010B00 = R8G8B8A8_UNORM_SRGB
+    0x00010F00 = BC1_UNORM
+    0x00011000 = BC1_UNORM_SRGB
+    0x00011100 = BC2_UNORM
+    0x00011200 = BC2_UNORM_SRGB
+    0x00011300 = BC3_UNORM
+    0x00011400 = BC3_UNORM_SRGB
+    0x00011500 = BC4_UNORM
+    0x00011600 = BC5_UNORM
+    0x00030000 = R32G32B32A32_FLOAT
\ No newline at end of file
diff --git a/research/pack.txt b/research/pack.txt
index a300c30..a9c8f8e 100644
--- a/research/pack.txt
+++ b/research/pack.txt
@@ -9,6 +9,7 @@ header:
     total_size (4)
     serialized_size (4) note: this is the size of the PACK data, seeking to this number will be where resource data starts.
     resource_size (4) note: this is data that exists inherently in the pack, always after all the files.
+        note 2: keep track of the offset, each bxon doesn't specify resource offset. alignment is 0x80.
     preload_count (4)
     rel_offset_preload_table (4) -> preload[]
     pack_count (4)