Move astc-encode to file

cmake/bimg/3rdparty/astc_encoder.cmake

@@ -0,0 +1,25 @@
+# bgfx.cmake - bgfx building in cmake
+# Written in 2017 by Joshua Brookover <joshua.al.brookover@gmail.com>
+#
+# To the extent possible under law, the author(s) have dedicated all copyright
+# and related and neighboring rights to this software to the public domain
+# worldwide. This software is distributed without any warranty.
+#
+# You should have received a copy of the CC0 Public Domain Dedication along with
+# this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+
+# Ensure the directory exists
+if(NOT IS_DIRECTORY ${BIMG_DIR})
+	message(SEND_ERROR "Could not load bimg, directory does not exist. ${BIMG_DIR}")
+	return()
+endif()
+
+if(NOT ASTC_ENCODER_LIBRARIES)
+	file(
+		GLOB_RECURSE #
+		ASTC_ENCODER_SOURCES #
+		${BIMG_DIR}/3rdparty/astc-encoder/source/*.cpp #
+		${BIMG_DIR}/3rdparty/astc-encoder/source/*.h #
+	)
+	set(ASTC_ENCODER_INCLUDE_DIR ${BIMG_DIR}/3rdparty/astc-encoder/include)
+endif()

cmake/bimg/CMakeLists.txt

@@ -9,6 +9,7 @@
 # this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
 
 include(3rdparty/libsquish.cmake)
+include(3rdparty/astc_encoder.cmake)
 include(3rdparty/tinyexr.cmake)
 include(3rdparty/miniz.cmake)
 include(bimg.cmake)

cmake/bimg/bimg.cmake

@@ -21,7 +21,7 @@ set_target_properties(bimg PROPERTIES FOLDER "bgfx")
 
 target_include_directories(
 	bimg PUBLIC $<BUILD_INTERFACE:${BIMG_DIR}/include>$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-	PRIVATE ${BIMG_DIR}/3rdparty/astc-encoder/include #
+	PRIVATE ${ASTC_ENCODER_INCLUDE_DIR} #
 			${MINIZ_INCLUDE_DIR} #
 )
 
@@ -32,15 +32,15 @@ file(
 	${BIMG_DIR}/src/image.* #
 	${BIMG_DIR}/src/image_gnf.cpp #
 	#
-	${BIMG_DIR}/3rdparty/astc-encoder/source/*.cpp #
-	${BIMG_DIR}/3rdparty/astc-encoder/source/*.h #
-	#
+	${ASTC_ENCODER_SOURCES}
 	${MINIZ_SOURCES}
 )
 
 target_sources(bimg PRIVATE ${BIMG_SOURCES})
 
 target_link_libraries(
-	bimg PUBLIC bx #
-				${MINIZ_LIBRARIES} #
+	bimg
+	PUBLIC bx #
+		   ${ASTC_ENCODER_LIBRARIES} #
+		   ${MINIZ_LIBRARIES} #
 )

cmake/bimg/bimg_encode.cmake

@@ -24,7 +24,7 @@ target_include_directories(
 	PUBLIC $<BUILD_INTERFACE:${BIMG_DIR}/include> $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
 	PRIVATE ${BIMG_DIR}/3rdparty #
 			${LIBSQUISH_INCLUDE_DIR} #
-			${BIMG_DIR}/3rdparty/astc-encoder/include #
+			${ASTC_ENCODER_INCLUDE_DIR}
 			${BIMG_DIR}/3rdparty/iqa/include #
 			${BIMG_DIR}/3rdparty/nvtt #
 			${TINYEXR_INCLUDE_DIR} #
@@ -59,6 +59,7 @@ target_link_libraries(
 	bimg_encode
 	PUBLIC bx #
 		   ${LIBSQUISH_LIBRARIES} #
+		   ${ASTC_ENCODER_LIBRARIES} #
 		   ${TINYEXR_LIBRARIES} #
 )