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Backends: Glfw, SDL2: ImplXXXGetContentScale shall return 1 on emscripten / apple / android #8742

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Backends: Glfw, SDL2: ImplXXXGetContentScale shall return 1 on emscripten / apple / android #8742

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Backends: Glfw, SDL2: ImplXXXGetContentScale shall return 1 on emscri…
pthom Jun 27, 2025
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Backends: Glfw: emscripten makefile uses port contrib.glfw3
pthom Jun 27, 2025
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5 changes: 3 additions & 2 deletions examples/example_glfw_opengl3/Makefile.emscripten
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Original file line number Diff line number Diff line change
Expand Up @@ -32,8 +32,9 @@ EMS =
##---------------------------------------------------------------------

# ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
EMS += -s DISABLE_EXCEPTION_CATCHING=1
LDFLAGS += -s USE_GLFW=3 -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
# Note: For glfw, we use emscripten-glfw port (contrib.glfw3) instead of (-s USE_GLFW=3) to get a better support for High DPI displays.
EMS += -s DISABLE_EXCEPTION_CATCHING=1 --use-port=contrib.glfw3
LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1

# Build as single file (binary text encoded in .html file)
#LDFLAGS += -sSINGLE_FILE
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5 changes: 3 additions & 2 deletions examples/example_glfw_wgpu/Makefile.emscripten
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Expand Up @@ -32,8 +32,9 @@ EMS =
##---------------------------------------------------------------------

# ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
EMS += -s DISABLE_EXCEPTION_CATCHING=1
LDFLAGS += -s USE_GLFW=3 -s USE_WEBGPU=1
# Note: For glfw, we use emscripten-glfw port (contrib.glfw3) instead of (-s USE_GLFW=3) to get a better support for High DPI displays.
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@ypujante ypujante Jun 27, 2025

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Just an FYI, emscripten-glfw offers much more than better support for Hi DPI, like for example gamepad support, copy/paste, workaround for meta key (broken with -s USE_GLFW=3), etc...

EMS += -s DISABLE_EXCEPTION_CATCHING=1 --use-port=contrib.glfw3
LDFLAGS += -s USE_WEBGPU=1
LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1

# Build as single file (binary text encoded in .html file)
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