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lvgl / lv_web_emscripten

LVGL ported to Emscripten to be converted to JavaScript
MIT License
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Which code should I recompose if I want to make changes in build/index.js #9

Closed sk123sos closed 3 years ago

sk123sos commented 3 years ago

I want to add a timestamp into the created build/index.js,can I recompose some code to add time stamp into it?

embeddedt commented 3 years ago

This is somewhat off-topic since it doesn't pertain to anything LVGL-specific, but I would piggyback on this line of the Makefile and prepend something like window.buildTimestamp = \"$(shell date)\"; to the echo string.

sk123sos commented 3 years ago

This is somewhat off-topic since it doesn't pertain to anything LVGL-specific, but I would piggyback on this line of the Makefile and prepend something like window.buildTimestamp = \"$(shell date)\"; to the echo string.

thanks for help，I have a new qusetion now,If I change the limited size to 1920*1080,I will get lots of mem error,what should I do to avoid this?

embeddedt commented 3 years ago

Are you referring to the screen resolution? You would need to increase the maximum allowed size in lv_conf.h.

sk123sos commented 3 years ago

Are you referring to the screen resolution? You would need to increase the maximum allowed size in lv_conf.h.

yes I did ,but it shows that LINK build/index.html wasm-ld: error: initial memory too small, 22014176 bytes needed emcc: error: failed (1) Makefile:52: recipe for target 'build/index.html' failed

embeddedt commented 3 years ago

What values did you increase it to? It's asking for 20GB of RAM! :confused:

sk123sos commented 3 years ago

What values did you increase it to? It's asking for 20GB of RAM! 😕

I only change the lv_conf.h with

define LV_HOR_RES_MAX 1920

define LV_VER_RES_MAX 1080

embeddedt commented 3 years ago

I did the calculation wrong; it's actually only asking for 20MB, which is much more reasonable. Try adding -s INITIAL_MEMORY=67108864 beside the other -s argument on lines 49 and 53.

sk123sos commented 3 years ago

I did the calculation wrong; it's actually only asking for 20MB, which is much more reasonable. Try adding -s INITIAL_MEMORY=67108864 beside the other -s argument on lines 49 and 53.

Thanks for help,I will try it later

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