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webp_js: fix webp_js demo html

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We need to export 'Module.cwrap' method.

Change-Id: I2986c5a4c06630ae3f95086a114e727a86c99a2b
This commit is contained in:
Pascal Massimino 2018-04-03 13:55:33 +02:00
parent 15aa48d905
commit fc1b8e3a8b
2 changed files with 6 additions and 3 deletions
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6
CMakeLists.txt
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@ -289,7 +289,8 @@ if(WEBP_BUILD_WEBP_JS)
target_link_libraries(webp_js webpdecoder SDL)
set(WEBP_HAVE_SDL 1)
set_target_properties(webp_js PROPERTIES LINK_FLAGS
"-s EXPORTED_FUNCTIONS='[\"_WebpToSDL\"]' -s INVOKE_RUN=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)
@ -299,7 +300,8 @@ if(WEBP_BUILD_WEBP_JS)
target_link_libraries(webp_wasm webpdecoder SDL)
set_target_properties(webp_wasm PROPERTIES LINK_FLAGS
"-s WASM=1 -s 'BINARYEN_METHOD=\"native-wasm\"' \
-s EXPORTED_FUNCTIONS='[\"_WebpToSDL\"]' -s INVOKE_RUN=0")
-s EXPORTED_FUNCTIONS='[\"_WebpToSDL\"]' -s INVOKE_RUN=0 \
-s EXTRA_EXPORTED_RUNTIME_METHODS='[\"cwrap\"]'")
target_compile_definitions(webp_wasm PUBLIC EMSCRIPTEN WEBP_HAVE_SDL)
target_compile_definitions(webpdecoder PUBLIC EMSCRIPTEN)

3
README.webp_js
View File

@ -32,7 +32,8 @@ using Emscripten and CMake.
webp.js.mem files generated.
The callable JavaScript function is WebPToSDL(), which decodes a raw WebP
bitstream into a canvas. See webp_js/index.html for a simple usage sample.
bitstream into a canvas. See webp_js/index.html for a simple usage sample
(see below for instructions).
Demo HTML page:
===============