mirror of
https://github.com/BinomialLLC/basis_universal.git
synced 2026-10-28 11:45:27 +00:00
Ben Polinsky
b15211474d
With the default DYNAMIC_EXECUTION=1, embind generates its invokers at runtime with new Function(). A Content-Security-Policy without 'unsafe-eval' blocks this, so the transcoder and encoder fail to start with an EvalError. Add two CMake options to webgl/transcoder and webgl/encoder: - NO_DYNAMIC_EXECUTION (default OFF) adds -s DYNAMIC_EXECUTION=0. - EMBIND_AOT (default ON, only used with NO_DYNAMIC_EXECUTION) adds -s EMBIND_AOT=1. This generates the invokers at build time, so embind calls stay as fast as with the default build. The default build does not change. The .wasm output is byte-identical in all configurations; only the JS glue changes. Fixes #464
88 lines
2.9 KiB
CMake
88 lines
2.9 KiB
CMake
cmake_minimum_required(VERSION 3.5)
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project(basisu_transcoder_js)
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# KTX2 support (and Zstandard) in the transcoder is purely optional. Use "cmake -DKTX2=FALSE" to completely disable KTX2 support (which also disables Zstandard).
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# If this is FALSE you'll only be able to transcode .basis files.
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option(KTX2 "KTX2" TRUE)
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# If KTX2 is enabled, Zstandard is needed to support decompressing supercompressed UASTC files.
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# If you know you'll never be transcoding KTX2 files using this feature you can set KTX2_ZSTANDARD to 0.
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option(KTX2_ZSTANDARD "KTX2_ZSTANDARD" TRUE)
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# Use "cmake -DNO_DYNAMIC_EXECUTION=TRUE" to build JavaScript glue that never calls eval() or new Function().
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# This lets the module load under a Content-Security-Policy without 'unsafe-eval'.
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option(NO_DYNAMIC_EXECUTION "NO_DYNAMIC_EXECUTION" FALSE)
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# With NO_DYNAMIC_EXECUTION, generate the embind call wrappers at build time (fast) instead of
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# using the slower generic wrappers. Only has an effect when NO_DYNAMIC_EXECUTION is TRUE.
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option(EMBIND_AOT "EMBIND_AOT" TRUE)
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message("KTX2=${KTX2}")
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message("KTX2_ZSTANDARD=${KTX2_ZSTANDARD}")
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message("NO_DYNAMIC_EXECUTION=${NO_DYNAMIC_EXECUTION}")
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message("EMBIND_AOT=${EMBIND_AOT}")
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if (EMSCRIPTEN)
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set(CMAKE_CXX_STANDARD 17)
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set(SRC_LIST
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../../transcoder/basisu_transcoder.cpp
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basis_wrappers.cpp
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)
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if (KTX2)
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set(KTX2_DEFINITION BASISD_SUPPORT_KTX2=1)
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else()
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set(KTX2_DEFINITION BASISD_SUPPORT_KTX2=0)
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endif()
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if (KTX2_ZSTANDARD)
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set(SRC_LIST ${SRC_LIST}
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../../zstd/zstddeclib.c
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)
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set(ZSTD_DEFINITION BASISD_SUPPORT_KTX2_ZSTD=1)
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else()
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set(ZSTD_DEFINITION BASISD_SUPPORT_KTX2_ZSTD=0)
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endif()
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# message("KTX2_DEFINITION=${KTX2_DEFINITION})
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# message("ZSTD_DEFINITION=${ZSTD_DEFINITION})
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add_executable(basis_transcoder.js ${SRC_LIST})
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target_compile_definitions(basis_transcoder.js PRIVATE NDEBUG
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BASISD_SUPPORT_UASTC_HDR=1
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BASISD_SUPPORT_UASTC=1
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BASISD_SUPPORT_BC7=1
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BASISD_SUPPORT_ATC=0
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BASISD_SUPPORT_ASTC_HIGHER_OPAQUE_QUALITY=0
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BASISD_SUPPORT_PVRTC2=0
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BASISD_SUPPORT_FXT1=0
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BASISD_SUPPORT_ETC2_EAC_RG11=0
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BASISU_SUPPORT_ENCODING=0
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BASISD_ENABLE_DEBUG_FLAGS=1
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${KTX2_DEFINITION}
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${ZSTD_DEFINITION}
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)
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target_compile_options(basis_transcoder.js PRIVATE -O3 -fno-strict-aliasing)
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#target_compile_options(basis_transcoder.js PRIVATE -O0 -g -fno-strict-aliasing)
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target_include_directories(basis_transcoder.js PRIVATE ../../transcoder)
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set(TRANSCODER_LINK_FLAGS "--bind -s ALLOW_MEMORY_GROWTH=1 -O3 -s MALLOC=emmalloc -s MODULARIZE=1 -s EXPORT_NAME=BASIS -s ASSERTIONS=0 -s EXPORTED_RUNTIME_METHODS=['HEAP8']")
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if (NO_DYNAMIC_EXECUTION)
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set(TRANSCODER_LINK_FLAGS "${TRANSCODER_LINK_FLAGS} -s DYNAMIC_EXECUTION=0")
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if (EMBIND_AOT)
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set(TRANSCODER_LINK_FLAGS "${TRANSCODER_LINK_FLAGS} -s EMBIND_AOT=1")
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endif()
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endif()
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set_target_properties(basis_transcoder.js PROPERTIES
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OUTPUT_NAME "basis_transcoder"
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SUFFIX ".js"
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LINK_FLAGS "${TRANSCODER_LINK_FLAGS}")
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endif()
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