diff OrthancStone/Resources/Orthanc/CMake/EmscriptenParameters.cmake @ 1549:a48ae10857b1

packaging of the WebAssembly module
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 13 Aug 2020 15:56:01 +0200
parents
children 9ac2a65d4172
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Resources/Orthanc/CMake/EmscriptenParameters.cmake	Thu Aug 13 15:56:01 2020 +0200
@@ -0,0 +1,50 @@
+# Orthanc - A Lightweight, RESTful DICOM Store
+# Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+# Department, University Hospital of Liege, Belgium
+# Copyright (C) 2017-2020 Osimis S.A., Belgium
+#
+# This program is free software: you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public License
+# as published by the Free Software Foundation, either version 3 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program. If not, see
+# <http://www.gnu.org/licenses/>.
+
+
+# https://github.com/emscripten-core/emscripten/blob/master/src/settings.js
+
+if (NOT "${EMSCRIPTEN_TRAP_MODE}" STREQUAL "")
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s BINARYEN_TRAP_MODE='\"${EMSCRIPTEN_TRAP_MODE}\"'")
+endif()
+
+# "DISABLE_EXCEPTION_CATCHING" is a "compile+link" option. HOWEVER,
+# setting it inside "WASM_FLAGS" creates link errors, at least with
+# side modules. TODO: Understand why
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s DISABLE_EXCEPTION_CATCHING=0")
+#set(WASM_FLAGS "${WASM_FLAGS} -s DISABLE_EXCEPTION_CATCHING=0")
+
+if (EMSCRIPTEN_TARGET_MODE STREQUAL "wasm")
+  # WebAssembly
+  set(WASM_FLAGS "${WASM_FLAGS} -s WASM=1")
+  
+elseif (EMSCRIPTEN_TARGET_MODE STREQUAL "asm.js")
+  # asm.js targeting IE 11
+  set(WASM_FLAGS "-s WASM=0 -s ASM_JS=2 -s LEGACY_VM_SUPPORT=1")
+
+else()
+  message(FATAL_ERROR "Bad value for EMSCRIPTEN_TARGET_MODE: ${EMSCRIPTEN_TARGET_MODE}")
+endif()
+
+if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+  set(WASM_FLAGS "${WASM_FLAGS} -s SAFE_HEAP=1 -s ASSERTIONS=1")
+endif()
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WASM_FLAGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WASM_FLAGS}")