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cmake: disable webp.js if WEBP_ENABLE_SIMD=1

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wasm2js doesn't support SIMD, fixes link error

Change-Id: I3d9d3cb5f29434bf6c0c0029c07540a9768f9b95
This commit is contained in:
James Zern 2020-11-23 18:47:05 -08:00
parent 5abb55823b
commit d2e245ea9e
2 changed files with 22 additions and 12 deletions
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31
CMakeLists.txt
View File

@ -41,6 +41,10 @@ if(WEBP_BUILD_WEBP_JS)
set(WEBP_BUILD_WEBPINFO OFF)
set(WEBP_BUILD_WEBPMUX OFF)
set(WEBP_BUILD_EXTRAS OFF)
if(WEBP_ENABLE_SIMD)
message("wasm2js does not support SIMD, disabling webp.js generation.")
endif()
endif()
set(WEBP_DEP_LIBRARIES)
@ -582,18 +586,21 @@ if(WEBP_BUILD_EXTRAS)
endif()
if(WEBP_BUILD_WEBP_JS)
# JavaScript version
add_executable(webp_js ${CMAKE_CURRENT_SOURCE_DIR}/extras/webp_to_sdl.c)
target_link_libraries(webp_js webpdecoder SDL)
target_include_directories(webp_js PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
set(WEBP_HAVE_SDL 1)
set_target_properties(
webp_js
PROPERTIES LINK_FLAGS "-s WASM=0 \
-s EXPORTED_FUNCTIONS='[\"_WebpToSDL\"]' -s INVOKE_RUN=0 \
-s EXTRA_EXPORTED_RUNTIME_METHODS='[\"cwrap\"]'")
set_target_properties(webp_js PROPERTIES OUTPUT_NAME webp)
target_compile_definitions(webp_js PUBLIC EMSCRIPTEN WEBP_HAVE_SDL)
# wasm2js does not support SIMD.
if(NOT WEBP_ENABLE_SIMD)
# JavaScript version
add_executable(webp_js ${CMAKE_CURRENT_SOURCE_DIR}/extras/webp_to_sdl.c)
target_link_libraries(webp_js webpdecoder SDL)
target_include_directories(webp_js PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
set(WEBP_HAVE_SDL 1)
set_target_properties(
webp_js
PROPERTIES LINK_FLAGS "-s WASM=0 \
-s EXPORTED_FUNCTIONS='[\"_WebpToSDL\"]' -s INVOKE_RUN=0 \
-s EXTRA_EXPORTED_RUNTIME_METHODS='[\"cwrap\"]'")
set_target_properties(webp_js PROPERTIES OUTPUT_NAME webp)
target_compile_definitions(webp_js PUBLIC EMSCRIPTEN WEBP_HAVE_SDL)
endif()
# WASM version
add_executable(webp_wasm ${CMAKE_CURRENT_SOURCE_DIR}/extras/webp_to_sdl.c)

3
README.webp_js
View File

@ -78,3 +78,6 @@ Caveat:
https://github.com/kripken/emscripten/issues/3788
Therefore, SSE2 optimization is currently disabled in CMakeLists.txt.
- If WEBP_ENABLE_SIMD is set to 1 the JavaScript version (webp.js) will be
disabled as wasm2js does not support SIMD.