From 2f2b00cc057614f405b92d9c69f28094be04bc81 Mon Sep 17 00:00:00 2001
From: Sandy Carter <bwrsandman@gmail.com>
Date: Sat, 14 Jan 2023 07:55:39 -0500
Subject: [PATCH] Move etc2 to file

---
 cmake/bimg/3rdparty/etc2.cmake | 25 +++++++++++++++++++++++++
 cmake/bimg/CMakeLists.txt      |  1 +
 cmake/bimg/bimg_encode.cmake   |  5 +++--
 3 files changed, 29 insertions(+), 2 deletions(-)
 create mode 100644 cmake/bimg/3rdparty/etc2.cmake

diff --git a/cmake/bimg/3rdparty/etc2.cmake b/cmake/bimg/3rdparty/etc2.cmake
new file mode 100644
index 0000000..41bed01
--- /dev/null
+++ b/cmake/bimg/3rdparty/etc2.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 ETC2_LIBRARIES)
+	file(
+		GLOB_RECURSE #
+		ETC2_SOURCES #
+		${BIMG_DIR}/3rdparty/etc2/**.cpp #
+		${BIMG_DIR}/3rdparty/etc2/**.hpp #
+	)
+	set(ETC2_INCLUDE_DIR ${BIMG_DIR}/3rdparty)
+endif()
diff --git a/cmake/bimg/CMakeLists.txt b/cmake/bimg/CMakeLists.txt
index a546753..066bbe3 100644
--- a/cmake/bimg/CMakeLists.txt
+++ b/cmake/bimg/CMakeLists.txt
@@ -11,6 +11,7 @@
 include(3rdparty/loadpng.cmake)
 include(3rdparty/libsquish.cmake)
 include(3rdparty/astc_encoder.cmake)
+include(3rdparty/etc2.cmake)
 include(3rdparty/nvtt.cmake)
 include(3rdparty/pvrtc.cmake)
 include(3rdparty/tinyexr.cmake)
diff --git a/cmake/bimg/bimg_encode.cmake b/cmake/bimg/bimg_encode.cmake
index 94021ce..8209f16 100644
--- a/cmake/bimg/bimg_encode.cmake
+++ b/cmake/bimg/bimg_encode.cmake
@@ -25,6 +25,7 @@ target_include_directories(
 	PRIVATE ${BIMG_DIR}/3rdparty #
 			${LIBSQUISH_INCLUDE_DIR} #
 			${ASTC_ENCODER_INCLUDE_DIR}
+			${ETC2_INCLUDE_DIR}
 			${NVTT_INCLUDE_DIR} #
 			${PVRTC_INCLUDE_DIR}
 			${TINYEXR_INCLUDE_DIR} #
@@ -43,8 +44,7 @@ file(
 	${BIMG_DIR}/3rdparty/edtaa3/**.h #
 	${BIMG_DIR}/3rdparty/etc1/**.cpp #
 	${BIMG_DIR}/3rdparty/etc1/**.h #
-	${BIMG_DIR}/3rdparty/etc2/**.cpp #
-	${BIMG_DIR}/3rdparty/etc2/**.hpp #
+	${ETC2_SOURCES} #
 	${NVTT_SOURCES} #
 	${PVRTC_SOURCES} #
 	${TINYEXR_SOURCES}
@@ -58,6 +58,7 @@ target_link_libraries(
 	PUBLIC bx #
 		   ${LIBSQUISH_LIBRARIES} #
 		   ${ASTC_ENCODER_LIBRARIES} #
+		   ${ETC2_LIBRARIES} #
 		   ${NVTT_LIBRARIES}
 		   ${PVRTC_LIBRARIES} #
 		   ${TINYEXR_LIBRARIES} #