forked from bartvdbraak/blender
Fix: T73830 OSL not finding stdosl.h on linux
This extends FindOpenShadingLanguage.cmake to also look for the location of stdosl.h and adds the path to the invocation of oslc to deal with the headers being in different locations a little better. Differential Revision: https://developer.blender.org/D6865 Reviewers: brecht
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@ -66,6 +66,22 @@ FIND_PROGRAM(OSL_COMPILER oslc
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HINTS ${_osl_SEARCH_DIRS}
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PATH_SUFFIXES bin)
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get_filename_component(OSL_SHADER_HINT ${OSL_COMPILER} DIRECTORY)
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get_filename_component(OSL_SHADER_HINT ${OSL_SHADER_DIR}/../ ABSOLUTE)
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FIND_PATH(OSL_SHADER_DIR
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NAMES
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stdosl.h
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HINTS
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${OSL_ROOT_DIR}
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${OSL_SHADER_HINT}
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$ENV{OSLHOME}
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/usr/share/OSL/
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/usr/include/OSL/
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PATH_SUFFIXES
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shaders
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)
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# handle the QUIETLY and REQUIRED arguments and set OSL_FOUND to TRUE if
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# all listed variables are TRUE
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INCLUDE(FindPackageHandleStandardArgs)
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@ -607,7 +607,7 @@ endif()
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if(WITH_CYCLES_OSL)
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set(CYCLES_OSL ${LIBDIR}/osl CACHE PATH "Path to OpenShadingLanguage installation")
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set(OSL_SHADER_DIR ${CYCLES_OSL}/shaders)
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find_library(OSL_LIB_EXEC NAMES oslexec PATHS ${CYCLES_OSL}/lib)
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find_library(OSL_LIB_COMP NAMES oslcomp PATHS ${CYCLES_OSL}/lib)
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find_library(OSL_LIB_QUERY NAMES oslquery PATHS ${CYCLES_OSL}/lib)
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@ -96,15 +96,6 @@ set(SRC_OSL
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node_rgb_to_bw.osl
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)
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# FindOSL.cmake does not give us the location of the shader library
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# but generally it can be figured out from the location of the oslc
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# compiler. However if this fails you can set OSL_SHADER_DIR to
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# bypass the auto discovery.
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if(NOT DEFINED OSL_SHADER_DIR)
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get_filename_component(OSL_SHADER_DIR ${OSL_COMPILER} DIRECTORY)
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get_filename_component(OSL_SHADER_DIR ${OSL_SHADER_DIR}/../shaders ABSOLUTE)
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endif()
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# The headers that OSL ships differs per release so we can not
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# hardcode this.
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file(GLOB SRC_OSL_HEADER_DIST ${OSL_SHADER_DIR}/*.h)
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@ -132,7 +123,7 @@ foreach(_file ${SRC_OSL})
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string(REPLACE ${CMAKE_SOURCE_DIR} ${CMAKE_BINARY_DIR} _OSO_FILE ${_OSO_FILE})
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add_custom_command(
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OUTPUT ${_OSO_FILE}
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COMMAND ${OSL_COMPILER} -q -O2 -I"${CMAKE_CURRENT_SOURCE_DIR}" -o ${_OSO_FILE} ${_OSL_FILE}
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COMMAND ${OSL_COMPILER} -q -O2 -I"${CMAKE_CURRENT_SOURCE_DIR}" -I"${OSL_SHADER_DIR}" -o ${_OSO_FILE} ${_OSL_FILE}
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DEPENDS ${_OSL_FILE} ${SRC_OSL_HEADERS} ${OSL_COMPILER})
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list(APPEND SRC_OSO
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${_OSO_FILE}
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