find OIIO in cmake

CMakeLists.txt

@@ -41,6 +41,8 @@ find_package(OpenGL REQUIRED)
 
 find_package(OpenColorIO REQUIRED)
 
+find_package(OpenImageIO REQUIRED)
+
 find_package(Qt5 5.6 REQUIRED
   COMPONENTS
   Core

cmake/FindOpenImageIO.cmake

@@ -0,0 +1,154 @@
+#
+# Copyright 2016 Pixar
+#
+# Licensed under the Apache License, Version 2.0 (the "Apache License")
+# with the following modification; you may not use this file except in
+# compliance with the Apache License and the following modification to it:
+# Section 6. Trademarks. is deleted and replaced with:
+#
+# 6. Trademarks. This License does not grant permission to use the trade
+#    names, trademarks, service marks, or product names of the Licensor
+#    and its affiliates, except as required to comply with Section 4(c) of
+#    the License and to reproduce the content of the NOTICE file.
+#
+# You may obtain a copy of the Apache License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the Apache License with the above modification is
+# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the Apache License for the specific
+# language governing permissions and limitations under the Apache License.
+#
+
+if(UNIX)
+    find_path(OIIO_BASE_DIR
+            include/OpenImageIO/oiioversion.h
+        HINTS
+            "${OIIO_LOCATION}"
+            "$ENV{OIIO_LOCATION}"
+            "/opt/oiio"
+    )
+    find_path(OIIO_LIBRARY_DIR
+            libOpenImageIO.so
+        HINTS
+            "${OIIO_LOCATION}"
+            "$ENV{OIIO_LOCATION}"
+            "${OIIO_BASE_DIR}"
+        PATH_SUFFIXES
+            lib/
+        DOC
+            "OpenImageIO library path"
+    )
+elseif(WIN32)
+    find_path(OIIO_BASE_DIR
+            include/OpenImageIO/oiioversion.h
+        HINTS
+            "${OIIO_LOCATION}"
+            "$ENV{OIIO_LOCATION}"
+    )
+    find_path(OIIO_LIBRARY_DIR
+            OpenImageIO.lib
+        HINTS
+            "${OIIO_LOCATION}"
+            "$ENV{OIIO_LOCATION}"
+            "${OIIO_BASE_DIR}"
+        PATH_SUFFIXES
+            lib/
+        DOC
+            "OpenImageIO library path"
+    )
+endif()
+
+find_path(OIIO_INCLUDE_DIR
+        OpenImageIO/oiioversion.h
+    HINTS
+        "${OIIO_LOCATION}"
+        "$ENV{OIIO_LOCATION}"
+        "${OIIO_BASE_DIR}"
+    PATH_SUFFIXES
+        include/
+    DOC
+        "OpenImageIO headers path"
+)
+
+list(APPEND OIIO_INCLUDE_DIRS ${OIIO_INCLUDE_DIR})
+
+foreach(OIIO_LIB
+    OpenImageIO
+    OpenImageIO_Util
+    )
+
+    find_library(OIIO_${OIIO_LIB}_LIBRARY
+            ${OIIO_LIB}
+        HINTS
+            "${OIIO_LOCATION}"
+            "$ENV{OIIO_LOCATION}"
+            "${OIIO_BASE_DIR}"
+        PATH_SUFFIXES
+            lib/
+        DOC
+            "OIIO's ${OIIO_LIB} library path"
+    )
+
+    if(OIIO_${OIIO_LIB}_LIBRARY)
+        list(APPEND OIIO_LIBRARIES ${OIIO_${OIIO_LIB}_LIBRARY})
+    endif()
+endforeach(OIIO_LIB)
+
+foreach(OIIO_BIN
+        iconvert
+        idiff
+        igrep
+        iinfo
+        iv
+        maketx
+        oiiotool)
+
+    find_program(OIIO_${OIIO_BIN}_BINARY
+            ${OIIO_BIN}
+        HINTS
+            "${OIIO_LOCATION}"
+            "$ENV{OIIO_LOCATION}"
+            "${OIIO_BASE_DIR}"
+        PATH_SUFFIXES
+            bin/
+        DOC
+            "OIIO's ${OIIO_BIN} binary"
+    )
+    if(OIIO_${OIIO_BIN}_BINARY)
+        list(APPEND OIIO_BINARIES ${OIIO_${OIIO_BIN}_BINARY})
+    endif()
+endforeach(OIIO_BIN)
+
+if(OIIO_INCLUDE_DIRS AND EXISTS "${OIIO_INCLUDE_DIR}/OpenImageIO/oiioversion.h")
+    file(STRINGS ${OIIO_INCLUDE_DIR}/OpenImageIO/oiioversion.h
+        MAJOR
+        REGEX
+        "#define OIIO_VERSION_MAJOR.*$")
+    file(STRINGS ${OIIO_INCLUDE_DIR}/OpenImageIO/oiioversion.h
+        MINOR
+        REGEX
+        "#define OIIO_VERSION_MINOR.*$")
+    file(STRINGS ${OIIO_INCLUDE_DIR}/OpenImageIO/oiioversion.h
+        PATCH
+        REGEX
+        "#define OIIO_VERSION_PATCH.*$")
+    string(REGEX MATCHALL "[0-9]+" MAJOR ${MAJOR})
+    string(REGEX MATCHALL "[0-9]+" MINOR ${MINOR})
+    string(REGEX MATCHALL "[0-9]+" PATCH ${PATCH})
+    set(OIIO_VERSION "${MAJOR}.${MINOR}.${PATCH}")
+endif()
+
+# handle the QUIETLY and REQUIRED arguments and set OIIO_FOUND to TRUE if
+# all listed variables are TRUE
+include(FindPackageHandleStandardArgs)
+
+find_package_handle_standard_args(OpenImageIO
+    REQUIRED_VARS
+        OIIO_LIBRARIES
+        OIIO_INCLUDE_DIRS
+    VERSION_VAR
+        OIIO_VERSION
+)