Codec Framework and Delayed Loading Removal

.github/workflows/weekly.yml

@@ -146,13 +146,14 @@ jobs:
       matrix:
         config:
           - { name: 'all',    image: '2026', build: 'Release', components: 'core,python,bin,view,render,test', cmake: '-DUSE_BLOSC=ON  -DUSE_ZLIB=ON  -DUSE_EXR=ON  -DUSE_PNG=ON'  }
-          - { name: 'lite',   image: '2026', build: 'Release', components: 'core,python,bin,view,render,test', cmake: '-DUSE_BLOSC=OFF -DUSE_ZLIB=OFF -DUSE_EXR=OFF -DUSE_PNG=OFF -DOPENVDB_USE_DELAYED_LOADING=OFF' }
+          - { name: 'lite',   image: '2026', build: 'Release', components: 'core,python,bin,view,render,test', cmake: '-DUSE_BLOSC=OFF -DUSE_ZLIB=OFF -DUSE_EXR=OFF -DUSE_PNG=OFF' }
           - { name: 'half',   image: '2026', build: 'Release', components: 'core,python,bin,view,render,test', cmake: '-DUSE_BLOSC=OFF -DUSE_IMATH_HALF=ON' }
           - { name: 'simd',   image: '2026', build: 'Release', components: 'core,python,bin,view,render,test', cmake: '-DOPENVDB_X86_INSTRSET=7 -DUSE_VCL=ON' } # 7=AVX
           - { name: 'pygrid', image: '2026', build: 'Release', components: 'core,python,bin,view,render,test', cmake: '-DOPENVDB_PYTHON_WRAP_ALL_GRID_TYPES=ON' }
           - { name: 'asan',   image: '2026', build: 'asan',    components: 'core,test',                        cmake: '-DDISABLE_DEPENDENCY_VERSION_CHECKS=ON -DNANOVDB_USE_OPENVDB=ON -DOPENVDB_AX_STATIC=OFF -DOPENVDB_CORE_STATIC=OFF -DUSE_BLOSC=OFF' } # We never called blosc_destroy(), so disable blosc to silence these errors
           - { name: 'ubsan',  image: '2026', build: 'ubsan',   components: 'core,test',                        cmake: '-DDISABLE_DEPENDENCY_VERSION_CHECKS=ON -DCMAKE_CXX_FLAGS="-Wno-deprecated-declarations" ' }
           - { name: 'c++20',  image: '2026', build: 'Release', components: 'core,test',                        cmake: '-DCMAKE_CXX_STANDARD=20' }
+          - { name: 'abi14',  image: '2026',           build: 'Release', components: 'core,test',              cmake: '-DOPENVDB_USE_FUTURE_ABI_14=ON -DOPENVDB_ENABLE_ASSERTS=ON' }
           - { name: 'conf',   image: '2026', build: 'Release', components: 'core,python,bin,view,render,test', cmake: '-DCMAKE_FIND_PACKAGE_PREFER_CONFIG=ON' }
       fail-fast: false
     steps:
@@ -215,7 +216,6 @@ jobs:
           --components=\"core,axcore,python,bin,render,test,axbin\"
           --cargs=\'
           -DCMAKE_CXX_STANDARD=20
-          -DOPENVDB_USE_DELAYED_LOADING=OFF
           -DCMAKE_INSTALL_PREFIX=${{ github.workspace }}/install
           ${{ matrix.config.cmake }}
           \'
@@ -420,7 +420,6 @@ jobs:
         --components="${{ matrix.config.components }}"
         --cargs=\'
         -A x64 -G \"Visual Studio 17 2022\"
-        -DOPENVDB_USE_DELAYED_LOADING=OFF
         -DUSE_BLOSC=OFF \
         -DUSE_ZLIB=OFF \
         -DVCPKG_TARGET_TRIPLET=${VCPKG_DEFAULT_TRIPLET}

CMakeLists.txt

@@ -84,7 +84,6 @@ option(OPENVDB_ENABLE_VEC_RELATIONAL_OPERATIONS [=[
 Enabled deprecated relational < and > operators on Vector types. This option
 will be switched to OFF and the feature will be subsequently removed in future
 releases.]=] ON)
-option(OPENVDB_USE_DELAYED_LOADING "Build the core OpenVDB library with delayed-loading." ON)
 option(OPENVDB_CXX_STRICT "Enable or disable pre-defined compiler warnings" OFF)
 cmake_dependent_option(OPENVDB_INSTALL_CMAKE_MODULES
   "Install the provided OpenVDB CMake modules when building the core library"
@@ -264,7 +263,6 @@ mark_as_advanced(
   OPENVDB_BUILD_HOUDINI_ABITESTS
   OPENVDB_CXX_STRICT
   OPENVDB_ENABLE_RPATH
-  OPENVDB_USE_DELAYED_LOADING
   OPENVDB_FUTURE_DEPRECATION
   OPENVDB_SIMD
   SYSTEM_LIBRARY_PATHS

ci/install_windows.ps1

@@ -21,20 +21,52 @@ $vcpkgPackages = @(
     "nanobind"
 )
 
+$maxAttempts = 3
+
+# curl's schannel backend reports an unreachable CRL/OCSP responder as a
+# certificate verification failure (error 60), which vcpkg then treats as
+# permanent. Downgrade a missing revocation answer to a warning; the rest of
+# certificate validation still applies.
+$env:VCPKG_SSL_REVOKE_BEST_EFFORT = "1"
+
 # Update vcpkg
 vcpkg update
 
-# Allow the vcpkg command to fail once so we can retry with the latest
-try {
-    vcpkg install $vcpkgPackages
-} catch {
-    Write-Host "vcpkg install failed, retrying with latest ports..."
-    # Retry the installation with updated ports
-    Push-Location $env:VCPKG_INSTALLATION_ROOT
-    git pull
-    Pop-Location
-    vcpkg update
+$installed = $false
+
+for ($attempt = 1; $attempt -le $maxAttempts; $attempt++) {
     vcpkg install $vcpkgPackages
+
+    # A failing native command does not raise a terminating error, so the exit
+    # code has to be inspected explicitly rather than relying on try/catch.
+    if ($LASTEXITCODE -eq 0) {
+        $installed = $true
+        break
+    }
+
+    if ($attempt -eq $maxAttempts) {
+        break
+    }
+
+    # vcpkg fetches port sources directly from upstream hosts and won't retry
+    # downloads it classifies as permanent failures, so a single flaky TLS
+    # handshake aborts the whole install.
+    Write-Host "vcpkg install failed (attempt $attempt of $maxAttempts), retrying..."
+    Start-Sleep -Seconds 15
+
+    # Refresh the ports before the last attempt in case the failure is caused
+    # by a stale port rather than the network.
+    if ($attempt -eq ($maxAttempts - 1)) {
+        Write-Host "Retrying with latest ports..."
+        Push-Location $env:VCPKG_INSTALLATION_ROOT
+        git pull
+        Pop-Location
+        vcpkg update
+    }
+}
+
+if (-not $installed) {
+    throw "vcpkg install failed after $maxAttempts attempts"
 }
 
 Write-Host "vcpkg install completed successfully"

cmake/FindOpenVDB.cmake

@@ -64,8 +64,6 @@ This will define the following variables:
   True if the OpenVDB Library has been built with log4cplus support
 ``OpenVDB_USES_IMATH_HALF``
   True if the OpenVDB Library has been built with Imath half support
-``OpenVDB_USES_DELAYED_LOADING``
-  True if the OpenVDB Library has been built with delayed-loading
 ``OpenVDB_ABI``
   Set if this module was able to determine the ABI number the located
   OpenVDB Library was built against. Unset otherwise.
@@ -522,7 +520,6 @@ set(OpenVDB_USES_BLOSC ${USE_BLOSC})
 set(OpenVDB_USES_ZLIB ${USE_ZLIB})
 set(OpenVDB_USES_LOG4CPLUS ${USE_LOG4CPLUS})
 set(OpenVDB_USES_IMATH_HALF ${USE_IMATH_HALF})
-set(OpenVDB_USES_DELAYED_LOADING ${OPENVDB_USE_DELAYED_LOADING})
 set(OpenVDB_DEFINITIONS)
 
 if(WIN32)
@@ -555,7 +552,6 @@ if(_OPENVDB_HAS_NEW_VERSION_HEADER)
   OPENVDB_GET_VERSION_DEFINE(${_OPENVDB_VERSION_HEADER} "OPENVDB_USE_IMATH_HALF" OpenVDB_USES_IMATH_HALF)
   OPENVDB_GET_VERSION_DEFINE(${_OPENVDB_VERSION_HEADER} "OPENVDB_USE_BLOSC" OpenVDB_USES_BLOSC)
   OPENVDB_GET_VERSION_DEFINE(${_OPENVDB_VERSION_HEADER} "OPENVDB_USE_ZLIB" OpenVDB_USES_ZLIB)
-  OPENVDB_GET_VERSION_DEFINE(${_OPENVDB_VERSION_HEADER} "OPENVDB_USE_DELAYED_LOADING" OpenVDB_USES_DELAYED_LOADING)
 elseif(NOT OPENVDB_USE_STATIC_LIBS)
   # Use GetPrerequisites to see which libraries this OpenVDB lib has linked to
   # which we can query for optional deps. This basically runs ldd/otoll/objdump
@@ -602,11 +598,6 @@ elseif(NOT OPENVDB_USE_STATIC_LIBS)
     if(NOT ${_HAS_DEP} EQUAL -1)
       set(OpenVDB_USES_IMATH_HALF ON)
     endif()
-
-    string(FIND ${PREREQUISITE} "boost_iostreams" _HAS_DEP)
-    if(NOT ${_HAS_DEP} EQUAL -1)
-      set(OpenVDB_USES_DELAYED_LOADING ON)
-    endif()
   endforeach()
 
   unset(_OPENVDB_PREREQUISITE_LIST)
@@ -628,10 +619,6 @@ if(OpenVDB_USES_IMATH_HALF)
   find_package(Imath REQUIRED CONFIG)
 endif()
 
-if(OpenVDB_USES_DELAYED_LOADING)
-  find_package(Boost REQUIRED COMPONENTS iostreams)
-endif()
-
 if(UNIX)
   find_package(Threads REQUIRED)
 endif()
@@ -643,11 +630,6 @@ endif()
 
 set(_OPENVDB_VISIBLE_DEPENDENCIES "")
 
-if(OpenVDB_USES_DELAYED_LOADING)
-  list(APPEND _OPENVDB_VISIBLE_DEPENDENCIES Boost::iostreams)
-  list(APPEND OpenVDB_DEFINITIONS OPENVDB_USE_DELAYED_LOADING)
-endif()
-
 if(OpenVDB_USES_IMATH_HALF)
   list(APPEND _OPENVDB_VISIBLE_DEPENDENCIES Imath::Imath)
 endif()

doc/changes.txt

@@ -2034,7 +2034,7 @@ Bug fixes:
 New features:
 - Added @vdblink{tools::FindActiveValues,FindActiveValues}, which counts
   the active values in a tree that intersect a given bounding box.
-- Added @vdblink{io::DelayedLoadMetadata,DelayedLoadMetadata}, which stores
+- Added @c io::DelayedLoadMetadata, which stores
   mask offsets and compression sizes on write to accelerate delayed load
   reading.
 
@@ -2933,7 +2933,7 @@ New features:
 - Added a toggle to the @vdblink::tools::clip() clip@endlink tool
   to invert the clipping mask.
 - Custom leaf node implementations may now optimize their file layout
-  by inheriting from @vdblink::io::MultiPass io::MultiPass@endlink.
+  by inheriting from @c io::MultiPass.
   Voxel data for grids with such leaf nodes will be written and read in
   multiple passes, allowing blocks of related data to be stored contiguously.
   <I>[Contributed&nbsp;by&nbsp;Double&nbsp;Negative]</I>

nanovdb/nanovdb/cmd/convert/nanovdb_convert.cc

@@ -257,7 +257,7 @@ int main(int argc, char* argv[])
                 }
                 if (verbose) std::cout << "Opening OpenVDB file named \"" << inputFile << "\"" << std::endl;
                 openvdb::io::File file(inputFile);
-                file.open(false); //disable delayed loading
+                file.open();
                 if (gridName.empty()) {// convert all grid in the file
                     auto grids = file.getGrids();
                     std::vector<nanovdb::GridHandle<nanovdb::HostBuffer> > handles;

nanovdb/nanovdb/examples/ex_coarsen_nanovdb_cuda/coarsen_nanovdb_cuda.cpp

@@ -50,7 +50,7 @@ int main(int argc, char *argv[])
         cpuTimer.start("Read input VDB file");
         openvdb::initialize();
         openvdb::io::File inFile(argv[1]);
-        inFile.open(false); // disable delayed loading
+        inFile.open();
         auto baseGrids = inFile.getGrids();
         inFile.close();
         auto grid = openvdb::gridPtrCast<GridT>(baseGrids->at(0));

nanovdb/nanovdb/examples/ex_dilate_nanovdb_cuda/dilate_nanovdb_cuda.cpp

@@ -44,7 +44,7 @@ int main(int argc, char *argv[])
         cpuTimer.start("Read input VDB file");
         openvdb::initialize();
         openvdb::io::File inFile(argv[1]);
-        inFile.open(false); // disable delayed loading
+        inFile.open();
         auto baseGrids = inFile.getGrids();
         inFile.close();
         auto grid = openvdb::gridPtrCast<GridT>(baseGrids->at(0));

nanovdb/nanovdb/examples/ex_merge_nanovdb_cuda/merge_nanovdb_cuda.cpp

@@ -41,7 +41,7 @@ int main(int argc, char *argv[])
         cpuTimer.start("Read first input VDB file");
         openvdb::initialize();
         openvdb::io::File inFile1(argv[1]);
-        inFile1.open(false); // disable delayed loading
+        inFile1.open();
         auto baseGrids1 = inFile1.getGrids();
         inFile1.close();
         auto grid1 = openvdb::gridPtrCast<GridT>(baseGrids1->at(0));
@@ -51,7 +51,7 @@ int main(int argc, char *argv[])
         cpuTimer.start("Read second input VDB file");
         openvdb::initialize();
         openvdb::io::File inFile2(argv[2]);
-        inFile2.open(false); // disable delayed loading
+        inFile2.open();
         auto baseGrids2 = inFile2.getGrids();
         inFile2.close();
         auto grid2 = openvdb::gridPtrCast<GridT>(baseGrids2->at(0));

nanovdb/nanovdb/examples/ex_raytrace_level_set/openvdb.cc

@@ -37,7 +37,7 @@ void runOpenVDB(nanovdb::GridHandle<nanovdb::cuda::DeviceBuffer>& handle, int nu
     openvdb::initialize();
     std::string       filename = "C:/Users/william/Downloads/dragon.vdb";
     openvdb::io::File file(filename);
-    file.open(false); //disable delayed loading
+    file.open();
     auto srcGrid = file.readGrid<BufferT>("ls_dragon");
     std::cout << "Loading OpenVDB grid[" << srcGrid->getName() << "]...\n";
 #endif

nanovdb/nanovdb/examples/ex_refine_nanovdb_cuda/refine_nanovdb_cuda.cpp

@@ -81,7 +81,7 @@ int main(int argc, char *argv[])
         cpuTimer.start("Read input VDB file");
         openvdb::initialize();
         openvdb::io::File inFile(argv[1]);
-        inFile.open(false); // disable delayed loading
+        inFile.open();
         auto baseGrids = inFile.getGrids();
         inFile.close();
         auto grid = openvdb::gridPtrCast<GridT>(baseGrids->at(0));

nanovdb/nanovdb/unittest/TestOpenVDB.cc

@@ -140,7 +140,7 @@ class TestOpenVDB : public ::testing::Test
                 mTimer.start("Reading grid from the file \"" + fileName + "\"");
             try {
                 openvdb::io::File file(fileName);
-                file.open(false); //disable delayed loading
+                file.open();
                 grid = openvdb::gridPtrCast<openvdb::FloatGrid>(file.readGrid(file.beginName().gridName()));
             } catch(const std::exception& e) {
                 std::cerr << "An exception occurred: \"" << e.what() << "\"" << std::endl;
@@ -2860,7 +2860,7 @@ TEST_F(TestOpenVDB, LevelSetFiles)
         //mTimer.start("\nReading grid from the file \"" + fileName + "\"");
         try {
             openvdb::io::File file(fileName);
-            file.open(false); //disable delayed loading
+            file.open();
             auto srcGrid = openvdb::gridPtrCast<openvdb::FloatGrid>(file.readGrid(file.beginName().gridName()));
 
             const size_t pos = fileName.find_last_of("/\\") + 1;
@@ -2938,7 +2938,7 @@ TEST_F(TestOpenVDB, FogFiles)
         //mTimer.start("Reading grid from the file \"" + fileName + "\"");
         try {
             openvdb::io::File file(fileName);
-            file.open(false); //disable delayed loading
+            file.open();
             auto srcGrid = openvdb::gridPtrCast<openvdb::FloatGrid>(file.readGrid(file.beginName().gridName()));
 
             const size_t pos = fileName.find_last_of("/\\") + 1;
@@ -3008,7 +3008,7 @@ TEST_F(TestOpenVDB, PointFiles)
         //mTimer.start("Reading grid from the file \"" + fileName + "\"");
         try {
             openvdb::io::File file(fileName);
-            file.open(false); //disable delayed loading
+            file.open();
 
             auto srcGrid = openvdb::gridPtrCast<openvdb::points::PointDataGrid>(file.readGrid(file.beginName().gridName()));
             //std::cerr << "Read PointDataGrid named \"" << srcGrid->getName() << "\"" << std::endl;