Add verbose logging cmake option

CMakeLists.txt

@@ -40,6 +40,9 @@ SET(CMAKE_POLICY_DEFAULT_CMP0092 NEW)
 
 CMAKE_MINIMUM_REQUIRED( VERSION 3.22 )
 
+# Experimental USD importer: disabled, need to opt-in
+option(ASSIMP_BUILD_USD_VERBOSE_LOGS "Enable verbose USD import debug logging" off)
+
 # Disabled importers: m3d for 5.1 or later
 ADD_DEFINITIONS( -DASSIMP_BUILD_NO_M3D_IMPORTER)
 ADD_DEFINITIONS( -DASSIMP_BUILD_NO_M3D_EXPORTER)

code/CMakeLists.txt

@@ -935,6 +935,9 @@ SOURCE_GROUP( Extra FILES ${Extra_SRCS})
 # USD/USDA/USDC/USDZ support
 # tinyusdz
 IF (NOT ASSIMP_BUILD_NO_USD_IMPORTER)
+    if (ASSIMP_BUILD_USD_VERBOSE_LOGS)
+        ADD_DEFINITIONS( -DASSIMP_USD_VERBOSE_LOGS)
+    endif ()
     # Use CMAKE_CURRENT_SOURCE_DIR which provides assimp-local path (CMAKE_SOURCE_DIR is
     # relative to top-level/main project)
     set(Tinyusdz_BASE_ABSPATH "${CMAKE_CURRENT_SOURCE_DIR}/../contrib/tinyusdz")

contrib/tinyusdz/assimp_tinyusdz_logging.inc

@@ -29,6 +29,7 @@
 
 #if defined(TINYUSDZ_LOCAL_DEBUG_PRINT)
 #if defined(__ANDROID__)
+#if defined(ASSIMP_USD_VERBOSE_LOGS)
 // Works well but _extremely_ verbose
 #define DCOUT(x)                                               \
   do {                                                         \
@@ -37,14 +38,16 @@
               << std::to_string(__LINE__) << " " << x << "\n"; \
     TINYUSDZLOGE("tinyusdz", "%s", ss.str().c_str());          \
   } while (false)
+#else // defined(ASSIMP_USD_VERBOSE_LOGS)
 // Silent version
-//#define DCOUT(x)                                               \
-//  do {                                                         \
-//    std::stringstream ss;                                      \
-//    ss << __FILE__ << ":" << __func__ << ":"                   \
-//              << std::to_string(__LINE__) << " " << x << "\n"; \
-//  } while (false)
-#else
+#define DCOUT(x)                                               \
+  do {                                                         \
+    std::stringstream ss;                                      \
+    ss << __FILE__ << ":" << __func__ << ":"                   \
+              << std::to_string(__LINE__) << " " << x << "\n"; \
+  } while (false)
+#endif // defined(ASSIMP_USD_VERBOSE_LOGS)
+#else // defined(__ANDROID__)
 #define DCOUT(x)                                               \
   do {                                                         \
     std::cout << __FILE__ << ":" << __func__ << ":"            \