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#
# Try to find NVIDIA's Cg compiler, runtime libraries, and include path.
# Once done this will define
#
# CG_FOUND =system has NVIDIA Cg and it can be used.
# CG_INCLUDE_PATH = directory where cg.h resides
# CG_LIBRARY = full path to libCg.so (Cg.DLL on win32)
# CG_GL_LIBRARY = full path to libCgGL.so (CgGL.dll on win32)
# CG_COMPILER = full path to cgc (cgc.exe on win32)
#
# On OSX default to using the framework version of Cg.
IF (APPLE)
INCLUDE(${CMAKE_ROOT}/Modules/CMakeFindFrameworks.cmake)
SET(CG_FRAMEWORK_INCLUDES)
CMAKE_FIND_FRAMEWORKS(Cg)
IF (Cg_FRAMEWORKS)
FOREACH(dir ${Cg_FRAMEWORKS})
SET(CG_FRAMEWORK_INCLUDES ${CG_FRAMEWORK_INCLUDES}
${dir}/Headers ${dir}/PrivateHeaders)
ENDFOREACH(dir)
# Find the include dir
FIND_PATH(CG_INCLUDE_PATH cg.h
${CG_FRAMEWORK_INCLUDES}
)
# Since we are using Cg framework, we must link to it.
# Note, we use weak linking, so that it works even when Cg is not available.
SET(CG_LIBRARY "-weak_framework Cg" CACHE STRING "Cg library")
SET(CG_GL_LIBRARY "-weak_framework Cg" CACHE STRING "Cg GL library")
ENDIF (Cg_FRAMEWORKS)
FIND_PROGRAM(CG_COMPILER cgc
/usr/bin
/usr/local/bin
DOC "The Cg compiler"
)
ELSE (APPLE)
IF (WIN32)
FIND_PROGRAM( CG_COMPILER cgc
$ENV{CG_BIN_PATH}
$ENV{PROGRAMFILES}/NVIDIA\ Corporation/Cg/bin
$ENV{PROGRAMFILES}/Cg
${PROJECT_SOURCE_DIR}/../Cg
DOC "The Cg Compiler"
)
IF (CG_COMPILER)
GET_FILENAME_COMPONENT(CG_COMPILER_DIR ${CG_COMPILER} PATH)
GET_FILENAME_COMPONENT(CG_COMPILER_SUPER_DIR ${CG_COMPILER_DIR} PATH)
ELSE (CG_COMPILER)
SET (CG_COMPILER_DIR .)
SET (CG_COMPILER_SUPER_DIR ..)
ENDIF (CG_COMPILER)
FIND_PATH( CG_INCLUDE_PATH Cg/cg.h
$ENV{CG_INC_PATH}
$ENV{PROGRAMFILES}/NVIDIA\ Corporation/Cg/include
$ENV{PROGRAMFILES}/Cg
${PROJECT_SOURCE_DIR}/../Cg
${CG_COMPILER_SUPER_DIR}/include
${CG_COMPILER_DIR}
DOC "The directory where Cg/cg.h resides"
)
FIND_LIBRARY( CG_LIBRARY
NAMES Cg
PATHS
$ENV{CG_LIB_PATH}
$ENV{PROGRAMFILES}/NVIDIA\ Corporation/Cg/lib
$ENV{PROGRAMFILES}/Cg
${PROJECT_SOURCE_DIR}/../Cg
${CG_COMPILER_SUPER_DIR}/lib
${CG_COMPILER_DIR}
DOC "The Cg runtime library"
)
FIND_LIBRARY( CG_GL_LIBRARY
NAMES CgGL
PATHS
$ENV{PROGRAMFILES}/NVIDIA\ Corporation/Cg/lib
$ENV{PROGRAMFILES}/Cg
${PROJECT_SOURCE_DIR}/../Cg
${CG_COMPILER_SUPER_DIR}/lib
${CG_COMPILER_DIR}
DOC "The Cg runtime library"
)
ELSE (WIN32)
FIND_PROGRAM( CG_COMPILER cgc
/usr/bin
/usr/local/bin
DOC "The Cg Compiler"
)
GET_FILENAME_COMPONENT(CG_COMPILER_DIR "${CG_COMPILER}" PATH)
GET_FILENAME_COMPONENT(CG_COMPILER_SUPER_DIR "${CG_COMPILER_DIR}" PATH)
FIND_PATH( CG_INCLUDE_PATH Cg/cg.h
/usr/include
/usr/local/include
${CG_COMPILER_SUPER_DIR}/include
DOC "The directory where Cg/cg.h resides"
)
FIND_LIBRARY( CG_LIBRARY Cg
PATHS
/usr/lib64
/usr/lib
/usr/local/lib64
/usr/local/lib
${CG_COMPILER_SUPER_DIR}/lib64
${CG_COMPILER_SUPER_DIR}/lib
DOC "The Cg runtime library"
)
SET(CG_LIBRARY ${CG_LIBRARY} -lpthread)
FIND_LIBRARY( CG_GL_LIBRARY CgGL
PATHS
/usr/lib64
/usr/lib
/usr/local/lib64
/usr/local/lib
${CG_COMPILER_SUPER_DIR}/lib64
${CG_COMPILER_SUPER_DIR}/lib
DOC "The Cg runtime library"
)
ENDIF (WIN32)
ENDIF (APPLE)
IF (CG_INCLUDE_PATH)
SET( CG_FOUND 1 CACHE STRING "Set to 1 if CG is found, 0 otherwise")
ELSE (CG_INCLUDE_PATH)
SET( CG_FOUND 0 CACHE STRING "Set to 1 if CG is found, 0 otherwise")
ENDIF (CG_INCLUDE_PATH)
MARK_AS_ADVANCED( CG_FOUND )
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