Started replacing gli with libktx

external/CMakeLists.txt

@@ -0,0 +1,27 @@
+cmake_minimum_required(VERSION 3.8)
+
+project(external LANGUAGES C CXX)
+
+# libktx
+
+message(STATUS "Adding libktx")
+
+set(KTX_DIR ${CMAKE_CURRENT_SOURCE_DIR}/ktx)
+set(KTX_SOURCES
+    ${KTX_DIR}/lib/texture.c
+    ${KTX_DIR}/lib/hashlist.c
+    ${KTX_DIR}/lib/checkheader.c
+    ${KTX_DIR}/lib/swap.c
+    ${KTX_DIR}/lib/memstream.c
+    ${KTX_DIR}/lib/filestream.c
+    ${KTX_DIR}/lib/vkloader.c
+)
+set(KTX_INCLUDE
+    ${KTX_DIR}/include
+    ${KTX_DIR}/lib
+    ${KTX_DIR}/other_include
+)
+
+add_library(ktx ${KTX_SOURCES})
+target_include_directories(ktx PUBLIC ${KTX_INCLUDE})
+set_property(TARGET ktx PROPERTY FOLDER "external")

external/ktx

@@ -0,0 +1 @@
+Subproject commit 726d14d02c95bb21ec9e43807751b491d295dd3c