Add some documentation and fix fixdocs.nim.

doc/fixdocs.nim

@@ -55,16 +55,18 @@ for f in os.commandLineParams():
     var types: seq[string]
     var lines = readFile(f).split("\n")
     var menu_line = 0
+    var last_menu_line = 0
     var types_line = ""
     for i,line in lines:
         # if "reference reference-toplevel" in line and line.endswith ">Types</a>":
         if line.startswith "    title=\"TYPES = ":
             types_line = line
+            menu_line = i - 1
         elif types_line != "":
             types_line &= line
         if "</a>" in types_line:
             types = types_line.split({'"','='})[3].split({'|',' '}).filterIt it != ""
-            menu_line = i - 1
+            last_menu_line = i
             break
     if types.len == 0:
         continue
@@ -76,15 +78,18 @@ for f in os.commandLineParams():
 
     assert menu_line != 0
 
-    lines.delete menu_line
-    lines.delete menu_line
+    # types_id is usually "TYPES" but for some reason it's "TYPES_2" sometimes,
+    # so we'll extract the id from the href before we delete it
+    let types_id = lines[menu_line].rsplit("#",1)[1].split("\"")[0]
+    for i in menu_line .. last_menu_line:
+        lines.delete menu_line
 
     for tname in types:
         var parts = types_menu[tname].split('"')
         parts[5] = parts[5].strip_privates
         lines.insert(parts.join("\""), menu_line)
 
-    var body_line = lines.find "<div id=\"TYPES\">"
+    var body_line = lines.find &"<div id=\"{types_id}\">"
     while lines[body_line] != "</div>":
         lines.delete body_line
     lines.delete body_line

doc/modules.rst

@@ -28,12 +28,23 @@ Objects
 Graphics modules
 ----------------
 
+Anything that touches the graphics API (MeshData should be moved here)
+
 * `Render <graphics/render.html>`_
 * `Material <graphics/material.html>`_
 * `Texture <graphics/texture.html>`_
 * `Framebuffer <graphics/framebuffer.html>`_
 * `Ubo <graphics/ubo.html>`_
 
+GPU formats
+-----------
+
+Modules that handle mesh and texture formats and optimize them for the GPU while
+being completely agnostic to the graphics API.
+
+* `Texture decode <gpu_formats/texture_decode.html>`_
+* `Texture optimize <gpu_formats/texture_decode.html>`_
+
 Effect system
 -------------
 
@@ -60,6 +71,7 @@ Libraries
 ---------
 
 * `ArrRef <_._/libs/arr_ref/arr_ref.html>`_
+* `SliceMem <_._/libs/arr_ref/slice_mem.html>`_
 * `Loadable <_._/libs/loadable/loadable.html>`_
 * `DdxKtx <_._/libs/ddx_ktx/ddx_ktx.html>`_
 * `Float16 <_._/libs/float16/float16.html>`_

nim.cfg

@@ -0,0 +1,2 @@
+path:"./libs/packages"
+threads:on

src/gpu_formats/texture_optimize.nim

@@ -1,3 +1,45 @@
+# The contents of this file are subject to the Common Public Attribution License
+# Version 1.0 (the “License”); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+# https://myou.dev/licenses/LICENSE-CPAL. The License is based on the Mozilla
+# Public License Version 1.1 but Sections 14 and 15 have been added to cover use
+# of software over a computer network and provide for limited attribution for
+# the Original Developer. In addition, Exhibit A has been modified to be
+# consistent with Exhibit B.
+#
+# Software distributed under the License is distributed on an “AS IS” basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
+# the specific language governing rights and limitations under the License.
+#
+# The Original Code is Myou Engine.
+#
+# the Original Developer is the Initial Developer.
+#
+# The Initial Developer of the Original Code is the Myou Engine developers.
+# All portions of the code written by the Myou Engine developers are Copyright
+# (c) 2024. All Rights Reserved.
+#
+# Alternatively, the contents of this file may be used under the terms of the
+# GNU Affero General Public License version 3 (the [AGPL-3] License), in which
+# case the provisions of [AGPL-3] License are applicable instead of those above.
+#
+# If you wish to allow use of your version of this file only under the terms of
+# the [AGPL-3] License and not to allow others to use your version of this file
+# under the CPAL, indicate your decision by deleting the provisions above and
+# replace them with the notice and other provisions required by the [AGPL-3]
+# License. If you do not delete the provisions above, a recipient may use your
+# version of this file under either the CPAL or the [AGPL-3] License.
+
+
+
+## This module takes textures decoded from JPEG, PNG, etc. and encodes them in
+## compressed GPU formats like BCn and ASTC. In order to use it:
+##
+##  * Configure `Engine.CacheSettings`
+##  * Add one or both of these defines: `myouUseBC7Encoder`, `myouUseAstcEncoder`
+##
+## The resulting cache can be used in builds without encoders.
+
 
 import ../types
 import ./texture_decode
@@ -22,6 +64,10 @@ when defined(myouUseAstcEncoder):
     import astc
 when defined(myouUseBC7Encoder) or defined(myouUseAstcEncoder):
     import zstd/compress
+
+when defined(nimdoc):
+    type TYPES* = CacheSettings | EncodingSpeed | RgbBcFmt | BlockSize
+
 when defined(android) or defined(ios) or defined(emscripten):
     template has_bptc_support: bool = gl.GLAD_GL_EXT_texture_compression_bptc
 else: