Draco v1.5.2 release. (#818)

Author: tomfinegan

README.md

@@ -14,6 +14,11 @@ delays can result in transient errors that can be difficult to diagnose when
 new Draco releases are launched. To avoid the issue pin your sites to a
 versioned release.
 
+### Version 1.5.2 release
+* This is the same as v1.5.1 with the following two bug fixes:
+  * Fixes DRACO_TRANSCODER_SUPPORTED enabled builds.
+  * ABI version updated.
+
 ### Version 1.5.1 release
 * Adds assertion enabled Emscripten builds to the release, and a subset of the
   assertion enabled builds to GStatic. See the file listing below.

cmake/draco_build_definitions.cmake

@@ -60,7 +60,7 @@ macro(draco_set_build_definitions)
   # passed to libtool.
   #
   # We set DRACO_SOVERSION = [c-a].a.r
-  set(LT_CURRENT 3)
+  set(LT_CURRENT 4)
   set(LT_REVISION 0)
   set(LT_AGE 0)
   math(EXPR DRACO_SOVERSION_MAJOR "${LT_CURRENT} - ${LT_AGE}")

javascript/npm/draco3d/README.md

@@ -6,7 +6,7 @@
 News
 =======
 
-Check out the [README](https://github.com/google/draco/blob/1.5.1/README.md)
+Check out the [README](https://github.com/google/draco/blob/1.5.2/README.md)
 file for news about this release.
 
 Description

javascript/npm/draco3d/package.json

@@ -1,6 +1,6 @@
 {
   "name": "draco3d",
-  "version": "1.5.1",
+  "version": "1.5.2",
   "description": "Draco is a library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics.",
   "main": "draco3d.js",
   "scripts": {

javascript/npm/draco3dgltf/README.md

@@ -24,7 +24,7 @@ Draco github glTF branch URL: https://github.com/google/draco/tree/gltf_2.0_drac
 News
 =======
 
-Check out the [README](https://github.com/google/draco/blob/1.5.1/README.md)
+Check out the [README](https://github.com/google/draco/blob/1.5.2/README.md)
 file for news about this release.
 
 NPM Package

javascript/npm/draco3dgltf/package.json

@@ -1,6 +1,6 @@
 {
   "name": "draco3dgltf",
-  "version": "1.5.1",
+  "version": "1.5.2",
   "description": "This package contains a specific version of Draco 3D geometric compression library that is used for glTF Draco mesh compression extension.",
   "main": "draco3dgltf.js",
   "scripts": {

maya/draco_maya_wrapper_macos.tar.bz

@@ -18,7 +18,7 @@
 namespace draco {
 
 // Draco version is comprised of <major>.<minor>.<revision>.
-static const char kDracoVersion[] = "1.5.1";
+static const char kDracoVersion[] = "1.5.2";
 
 const char *Version() { return kDracoVersion; }
 

maya/draco_maya_wrapper_windows.tar.bz

@@ -99,6 +99,21 @@ std::string TextureUtils::GetExtension(ImageFormat format) {
   }
 }
 
+int TextureUtils::ComputeRequiredNumChannels(
+    const Texture &texture, const MaterialLibrary &material_library) {
+  // TODO(vytyaz): Consider a case where |texture| is not only used in OMR but
+  // also in other texture map types.
+  const auto mr_textures = TextureUtils::FindTextures(
+      TextureMap::METALLIC_ROUGHNESS, &material_library);
+  if (std::find(mr_textures.begin(), mr_textures.end(), &texture) ==
+      mr_textures.end()) {
+    // Occlusion-only texture.
+    return 1;
+  }
+  // Occlusion-metallic-roughness texture.
+  return 3;
+}
+
 std::vector<const Texture *> TextureUtils::FindTextures(
     const TextureMap::Type texture_type,
     const MaterialLibrary *material_library) {