Another small, but important, update to the javascript subproject.

It turns out that wasm does not support exception for the time being.
Emscripten provides a workaround, but the flag -fexceptions must be used.  So CMakeLists.txt has been updated.
Also the ojph_wrapper.cpp has been update. Now it include enable_resilience. Now, it also uses EMSCRIPTEN_KEEPALIVE preprocessor directive to expose functions rather than specifying them in the CMakeLists.txt.

subprojects/js/CMakeLists.txt

@@ -9,7 +9,7 @@ endif()
 
 project (openjph DESCRIPTION "Open source implementation of JPH" LANGUAGES CXX)
 
-set(CMAKE_CXX_FLAGS "-std=c++11 -O3 -DOJPH_DISABLE_INTEL_SIMD")
+set(CMAKE_CXX_FLAGS "-std=c++11 -O3 -fexceptions -DOJPH_DISABLE_INTEL_SIMD")
 
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../html)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../html)
@@ -24,6 +24,6 @@ endif()
 
 if (BUILD_TEST)
 else()
-    set_target_properties(libopenjph PROPERTIES SUFFIX ".js" LINK_FLAGS "-s WASM=1 -s ENVIRONMENT=web -s EXPORTED_FUNCTIONS=[_create_j2c_data,_init_j2c_data,_get_j2c_width,_get_j2c_height,_get_j2c_bit_depth,_get_j2c_is_signed,_get_j2c_num_components,_get_j2c_downsampling_x,_get_j2c_downsampling_y,_parse_j2c_data,_restrict_input_resolution,_pull_j2c_line,_release_j2c_data,_free,_malloc] -s EXTRA_EXPORTED_RUNTIME_METHODS=[ccall,cwrap] -s NO_EXIT_RUNTIME=1 -s ALLOW_MEMORY_GROWTH=1")
+    set_target_properties(libopenjph PROPERTIES SUFFIX ".js" LINK_FLAGS "-s WASM=1 -s ENVIRONMENT=web -s EXPORTED_FUNCTIONS=[_free,_malloc] -s EXTRA_EXPORTED_RUNTIME_METHODS=[ccall,cwrap] -s NO_EXIT_RUNTIME=1 -s ALLOW_MEMORY_GROWTH=1")
 endif()
 

subprojects/js/html/index.html

@@ -112,6 +112,7 @@ <h1>HTJ2K progressive decoding to full resolution (downloaded once, decoded many
         get_j2c_downsampling_y = Module.cwrap('get_j2c_downsampling_y', 'number', ['number', 'number']);
         parse_j2c_data = Module.cwrap('parse_j2c_data', 'void', ['number']);
         restrict_input_resolution = Module.cwrap('restrict_input_resolution', 'void', ['number', 'number', 'number']);
+        enable_resilience = Module.cwrap('enable_resilience', 'void', ['number']);
         pull_j2c_line = Module.cwrap('pull_j2c_line', 'number', ['number']);
         release_j2c_data = Module.cwrap('release_j2c_data', 'void', ['number']);
 
@@ -120,10 +121,11 @@ <h1>HTJ2K progressive decoding to full resolution (downloaded once, decoded many
           var t0 = performance.now();
 
           j2c = create_j2c_data();
-          const array = new Uint8Array(data);
+          const array = new Uint8Array(data, 0, data.byteLength);
 
           var buffer = Module._malloc(array.length);
           writeArrayToMemory(array, buffer);
+          enable_resilience(j2c);
           init_j2c_data(j2c, buffer, array.length);
           restrict_input_resolution(j2c, skip_res_for_data, skip_res_for_recon);
           var width = get_j2c_width(j2c, 0) | 0;          //component 0