Move self-hosted dependencies to external folder

.gitignore

@@ -14,13 +14,15 @@
 /include/imdebug.h
 
 # /lib/
-/lib/astc-encoder/.gitmodules
-/lib/astc-encoder/Source/GoogleTest
-/lib/basisu/bin_osx
-/lib/basisu/bin
-/lib/basisu/build
 /lib/src
 
+# /external/
+/external/astc-encoder/.gitmodules
+/external/astc-encoder/Source/GoogleTest
+/external/basisu/bin_osx
+/external/basisu/bin
+/external/basisu/build
+
 # /testimages/
 /testimages/*.png
 /testimages/Thumbs.db

.reuse/dep5

@@ -70,48 +70,48 @@ Files: */*.json
 Copyright: 2017-2020 Mark Callow
 License: Apache-2.0
 
-Files: lib/astc-encoder/Docs/* lib/astc-encoder/Test/* lib/astc-encoder/jenkins/* lib/astc-encoder/.gitattributes lib/astc-encoder/.gitignore lib/astc-encoder/.gitmodules lib/astc-encoder/.pylintrc lib/astc-encoder/README.md lib/astc-encoder/Utils/Example/README.md
+Files: external/basisu/Docs/* external/basisu/Test/* external/basisu/jenkins/* external/basisu/.gitattributes external/basisu/.gitignore external/basisu/.gitmodules external/basisu/.pylintrc external/basisu/README.md external/basisu/Utils/Example/README.md
 Copyright: 2020-2021 Arm Limited
 License: Apache-2.0
 
-Files: lib/astc-encoder/.gitrepo
+Files: external/basisu/.gitrepo
 Copyright: 2021 Mark Callow
 License: Apache-2.0
 
-Files: lib/astc-encoder/Source/stb_image*.h
+Files: external/basisu/Source/stb_image*.h
 Copyright: 2017 Sean Barrett
 License: MIT
 
-Files: lib/astc-encoder/Source/tinyexr.h
+Files: external/basisu/Source/tinyexr.h
 Copyright: 2014-2019 Syoyo Fujita and many contributors
 License: BSD-3-Clause
 
-Files: lib/astc-encoder/Source/wuffs-v0.3.c
+Files: external/basisu/Source/wuffs-v0.3.c
 Copyright: 2022 The Wuffs Authors.
 License: Apache-2.0
 
 # We have asked Binomial about REUSE compliance for their repo, see https://github.com/BinomialLLC/basis_universal/issues/165
-Files: lib/basisu/*
+Files: external/basisu/*
 Copyright: 2019-2020 Binomial LLC
 License: Apache-2.0
 
-Files: lib/basisu/apg_bmp.* lib/basisu/CMakeLists.txt lib/basisu/webgl/transcoder/CMakeLists.txt
+Files: external/basisu/apg_bmp.* external/basisu/CMakeLists.txt external/basisu/webgl/transcoder/CMakeLists.txt
 Copyright: 2019 Anton Gerdelan
 License: Apache-2.0
 
-Files: lib/basisu/basisu_astc_decomp.*
+Files: external/basisu/basisu_astc_decomp.*
 Copyright: 2016 The Android Open Source Project
 License: Apache-2.0
 
 Files: tools/imageio/png.imageio/lodepng.*
 Copyright: 2005-2019 Lode Vandevenne
 License: Zlib
 
-Files: lib/dfdutils/vulkan/*
+Files: external/dfdutils/vulkan/*
 Copyright: 2015-2020 The Khronos Group Inc.
 License: Apache-2.0
 
-Files: lib/dfdutils/.gitrepo
+Files: external/dfdutils/.gitrepo
 Copyright: 2019-2020 The Khronos Group Inc
 License: Apache-2.0
 
@@ -205,6 +205,6 @@ Files: other_projects/fmt/*
 Copyright: 2012 - present Victor Zverovich
 License: MIT
 
-Files: other_projects/cxxopts/*
+Files: external/cxxopts/*
 Copyright: 2014-2022 Jarryd Beck
 License: MIT

CMakeLists.txt

@@ -101,12 +101,12 @@ endif()
 if(BASISU_SUPPORT_OPENCL AND WIN32 AND NOT OpenCL_FOUND)
     # To avoid fiddly setting up of OpenCL on Windows CI VMs, use copy in repo.
     set(OpenCL_INCLUDE_DIR
-        "${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu/opencl"
+        "${CMAKE_CURRENT_SOURCE_DIR}/external/basisu/opencl"
         # FORCE to override *-NOTFOUND set by the failed find.
         CACHE PATH "" FORCE
     )
     set(OpenCL_LIBRARY
-        "${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu/opencl/lib/OpenCL64.lib"
+        "${CMAKE_CURRENT_SOURCE_DIR}/external/basisu/opencl/lib/OpenCL64.lib"
         CACHE FILEPATH "" FORCE
     )
     set(OpenCL_INCLUDE_DIRS ${OpenCL_INCLUDE_DIR})
@@ -300,7 +300,7 @@ else()
 endif()
 
 # To improve output determinism enable precise floating point operations globally
-# This code was based on lib/astc-encoder/Source/cmake_core.cmake
+# This code was based on external/astc-encoder/Source/cmake_core.cmake
 
 # For Visual Studio prior to 2022 (compiler < 19.30) /fp:strict
 # For Visual Studio 2022 (compiler >= 19.30) /fp:precise
@@ -356,26 +356,26 @@ set(KTX_MAIN_SRC
     lib/basis_sgd.h
     lib/basis_transcode.cpp
     lib/miniz_wrapper.cpp
-    lib/basisu/transcoder/basisu_containers.h
-    lib/basisu/transcoder/basisu_containers_impl.h
-    lib/basisu/transcoder/basisu_file_headers.h
-    lib/basisu/transcoder/basisu_transcoder_internal.h
-    lib/basisu/transcoder/basisu_transcoder_uastc.h
-    lib/basisu/transcoder/basisu_transcoder.cpp
-    lib/basisu/transcoder/basisu_transcoder.h
-    lib/basisu/transcoder/basisu.h
-    lib/basisu/zstd/zstd.c
+    external/basisu/transcoder/basisu_containers.h
+    external/basisu/transcoder/basisu_containers_impl.h
+    external/basisu/transcoder/basisu_file_headers.h
+    external/basisu/transcoder/basisu_transcoder_internal.h
+    external/basisu/transcoder/basisu_transcoder_uastc.h
+    external/basisu/transcoder/basisu_transcoder.cpp
+    external/basisu/transcoder/basisu_transcoder.h
+    external/basisu/transcoder/basisu.h
+    external/basisu/zstd/zstd.c
     lib/checkheader.c
-    lib/dfdutils/createdfd.c
-    lib/dfdutils/colourspaces.c
-    lib/dfdutils/dfd.h
-    lib/dfdutils/interpretdfd.c
-    lib/dfdutils/printdfd.c
-    lib/dfdutils/queries.c
-    lib/dfdutils/vk2dfd.c
-    lib/dfdutils/vk2dfd.inl
-    lib/dfdutils/vulkan/vk_platform.h
-    lib/dfdutils/vulkan/vulkan_core.h
+    external/dfdutils/createdfd.c
+    external/dfdutils/colourspaces.c
+    external/dfdutils/dfd.h
+    external/dfdutils/interpretdfd.c
+    external/dfdutils/printdfd.c
+    external/dfdutils/queries.c
+    external/dfdutils/vk2dfd.c
+    external/dfdutils/vk2dfd.inl
+    external/dfdutils/vulkan/vk_platform.h
+    external/dfdutils/vulkan/vulkan_core.h
     lib/etcunpack.cxx
     lib/filestream.c
     lib/filestream.h
@@ -406,48 +406,48 @@ set(KTX_MAIN_SRC
 
 if (KTX_FEATURE_ETC_UNPACK)
 	list(APPEND KTX_MAIN_SRC 
-		lib/etcdec.cxx
+		external/etcdec/etcdec.cxx
 	)
 endif()
 
 set(BASISU_ENCODER_CXX_SRC
-    lib/basisu/encoder/basisu_backend.cpp
-    lib/basisu/encoder/basisu_backend.h
-    lib/basisu/encoder/basisu_basis_file.cpp
-    lib/basisu/encoder/basisu_basis_file.h
-    lib/basisu/encoder/basisu_bc7enc.cpp
-    lib/basisu/encoder/basisu_bc7enc.h
-    lib/basisu/encoder/basisu_comp.cpp
-    lib/basisu/encoder/basisu_comp.h
-    lib/basisu/encoder/basisu_enc.cpp
-    lib/basisu/encoder/basisu_enc.h
-    lib/basisu/encoder/basisu_etc.cpp
-    lib/basisu/encoder/basisu_etc.h
-    lib/basisu/encoder/basisu_frontend.cpp
-    lib/basisu/encoder/basisu_frontend.h
-    lib/basisu/encoder/basisu_gpu_texture.cpp
-    lib/basisu/encoder/basisu_gpu_texture.h
-    lib/basisu/encoder/basisu_kernels_declares.h
-    lib/basisu/encoder/basisu_kernels_imp.h
-    lib/basisu/encoder/basisu_kernels_sse.cpp
-    lib/basisu/encoder/basisu_miniz.h
-    lib/basisu/encoder/basisu_opencl.cpp
-    lib/basisu/encoder/basisu_opencl.h
-    lib/basisu/encoder/basisu_pvrtc1_4.cpp
-    lib/basisu/encoder/basisu_pvrtc1_4.h
-    lib/basisu/encoder/basisu_resample_filters.cpp
-    lib/basisu/encoder/basisu_resampler_filters.h
-    lib/basisu/encoder/basisu_resampler.cpp
-    lib/basisu/encoder/basisu_resampler.h
-    lib/basisu/encoder/basisu_ssim.cpp
-    lib/basisu/encoder/basisu_ssim.h
-    lib/basisu/encoder/basisu_uastc_enc.cpp
-    lib/basisu/encoder/basisu_uastc_enc.h
-    lib/basisu/encoder/cppspmd_flow.h
-    lib/basisu/encoder/cppspmd_math.h
-    lib/basisu/encoder/cppspmd_math_declares.h
-    lib/basisu/encoder/cppspmd_sse.h
-    lib/basisu/encoder/cppspmd_type_aliases.h
+    external/basisu/encoder/basisu_backend.cpp
+    external/basisu/encoder/basisu_backend.h
+    external/basisu/encoder/basisu_basis_file.cpp
+    external/basisu/encoder/basisu_basis_file.h
+    external/basisu/encoder/basisu_bc7enc.cpp
+    external/basisu/encoder/basisu_bc7enc.h
+    external/basisu/encoder/basisu_comp.cpp
+    external/basisu/encoder/basisu_comp.h
+    external/basisu/encoder/basisu_enc.cpp
+    external/basisu/encoder/basisu_enc.h
+    external/basisu/encoder/basisu_etc.cpp
+    external/basisu/encoder/basisu_etc.h
+    external/basisu/encoder/basisu_frontend.cpp
+    external/basisu/encoder/basisu_frontend.h
+    external/basisu/encoder/basisu_gpu_texture.cpp
+    external/basisu/encoder/basisu_gpu_texture.h
+    external/basisu/encoder/basisu_kernels_declares.h
+    external/basisu/encoder/basisu_kernels_imp.h
+    external/basisu/encoder/basisu_kernels_sse.cpp
+    external/basisu/encoder/basisu_miniz.h
+    external/basisu/encoder/basisu_opencl.cpp
+    external/basisu/encoder/basisu_opencl.h
+    external/basisu/encoder/basisu_pvrtc1_4.cpp
+    external/basisu/encoder/basisu_pvrtc1_4.h
+    external/basisu/encoder/basisu_resample_filters.cpp
+    external/basisu/encoder/basisu_resampler_filters.h
+    external/basisu/encoder/basisu_resampler.cpp
+    external/basisu/encoder/basisu_resampler.h
+    external/basisu/encoder/basisu_ssim.cpp
+    external/basisu/encoder/basisu_ssim.h
+    external/basisu/encoder/basisu_uastc_enc.cpp
+    external/basisu/encoder/basisu_uastc_enc.h
+    external/basisu/encoder/cppspmd_flow.h
+    external/basisu/encoder/cppspmd_math.h
+    external/basisu/encoder/cppspmd_math_declares.h
+    external/basisu/encoder/cppspmd_sse.h
+    external/basisu/encoder/cppspmd_type_aliases.h
     )
 
 if(KTX_FEATURE_GL_UPLOAD)
@@ -473,7 +473,7 @@ elseif(APPLE_MAC_OS OR LINUX)
 endif()
 
 set(KTX_BASISU_INCLUDE_DIRS
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu/transcoder>
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/external/basisu/transcoder>
 )
 
 # Main library
@@ -562,10 +562,10 @@ macro(common_libktx_settings target enable_write library_type)
         $<INSTALL_INTERFACE:include>
     PRIVATE
         ${KTX_BASISU_INCLUDE_DIRS}
-        $<INSTALL_INTERFACE:lib/basisu/transcoder>
+        external
 
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu/zstd>
-        $<INSTALL_INTERFACE:lib/basisu/zstd>
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/external/basisu/zstd>
+        $<INSTALL_INTERFACE:external/basisu/zstd>
 
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/utils>
         $<INSTALL_INTERFACE:utils>
@@ -706,8 +706,8 @@ macro(common_libktx_settings target enable_write library_type)
         target_include_directories(
             ${target}
         PRIVATE
-            $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib/dfdutils>
-            $<INSTALL_INTERFACE:lib/dfdutils>
+            $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/external/dfdutils>
+            $<INSTALL_INTERFACE:external/dfdutils>
         )
 
         get_target_property( KTX_PUBLIC_HEADER ${target} PUBLIC_HEADER )
@@ -735,8 +735,8 @@ macro(common_libktx_settings target enable_write library_type)
         target_include_directories(
             ${target}
         PRIVATE
-            $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu>
-            $<INSTALL_INTERFACE:lib/basisu>
+            $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/external/basisu>
+            $<INSTALL_INTERFACE:external/basisu>
             $<$<BOOL:${BASISU_SUPPORT_OPENCL}>:${OpenCL_INCLUDE_DIRS}>
         )
         target_compile_definitions(
@@ -817,7 +817,7 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
         PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-variable;-Wno-class-memaccess;-Wno-misleading-indentation;-Wno-extra;-Wno-deprecated-copy;-Wno-parentheses;-Wno-strict-aliasing"
     )
     set_source_files_properties(
-        lib/basisu/transcoder/basisu_transcoder.cpp
+        external/basisu/transcoder/basisu_transcoder.cpp
         PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-function;-Wno-unused-variable;-Wno-class-memaccess;-Wno-maybe-uninitialized"
     )
     if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "11")
@@ -827,11 +827,11 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
         # the facts that we have never seen a crash and version 12 no
         # longer raises the warnings.
         get_source_file_property(cur_options
-            lib/basisu/encoder/basisu_comp.cpp
+            external/basisu/encoder/basisu_comp.cpp
             COMPILE_OPTIONS
         )
         set_source_files_properties(
-            lib/basisu/encoder/basisu_comp.cpp
+            external/basisu/encoder/basisu_comp.cpp
             PROPERTIES COMPILE_OPTIONS "${cur_options};-Wno-stringop-overflow"
         )
         endif()
@@ -842,7 +842,7 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
         # line 326, where the error is raised, to be > the array length.
         # Also we have never seen any crashes.
         set_source_files_properties(
-            lib/basisu/encoder/basisu_uastc_enc.cpp
+            external/basisu/encoder/basisu_uastc_enc.cpp
             PROPERTIES COMPILE_OPTIONS "-Wno-stringop-overflow"
         )
     endif()
@@ -867,11 +867,11 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     endif()
     # BEWARE: set_source_files_properties is not additive; it replaces.
     if (${clang_version} VERSION_GREATER_EQUAL "12.0.0")
-        set_source_files_properties( lib/basisu/encoder/basisu_kernels_sse.cpp
+        set_source_files_properties( external/basisu/encoder/basisu_kernels_sse.cpp
             PROPERTIES COMPILE_OPTIONS "-Wno-unused-parameter;-Wno-deprecated-copy;-Wno-uninitialized-const-reference"
         )
     else()
-        set_source_files_properties( lib/basisu/encoder/basisu_kernels_sse.cpp
+        set_source_files_properties( external/basisu/encoder/basisu_kernels_sse.cpp
             PROPERTIES COMPILE_OPTIONS "-Wno-unused-parameter"
         )
     endif()
@@ -883,11 +883,11 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
             PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-variable;-Wno-unused-parameter;-Wno-deprecated-copy-with-user-provided-copy"
         )
         set_source_files_properties(
-            lib/basisu/transcoder/basisu_transcoder.cpp
+            external/basisu/transcoder/basisu_transcoder.cpp
             PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-function;-Wno-unused-variable"
         )
         set_source_files_properties(
-            lib/basisu/zstd/zstd.c
+            external/basisu/zstd/zstd.c
             PROPERTIES COMPILE_OPTIONS "-Wno-unused-function"
         )
     endif()
@@ -900,10 +900,10 @@ endif()
 # target to retrieve these from the ktx target are not available until
 # v18 and we still need to work with v16 in the Emscripten Docker image.
 get_source_file_property(transcoder_options
-    lib/basisu/transcoder/basisu_transcoder.cpp
+    external/basisu/transcoder/basisu_transcoder.cpp
     COMPILE_OPTIONS
 )
-get_source_file_property(zstd_options lib/basisu/zstd/zstd.c COMPILE_OPTIONS)
+get_source_file_property(zstd_options external/basisu/zstd/zstd.c COMPILE_OPTIONS)
 
 if(EMSCRIPTEN)
     set(
@@ -948,7 +948,8 @@ if(EMSCRIPTEN)
     target_include_directories( msc_basis_transcoder_js
         PRIVATE
         lib
-        lib/basisu/transcoder
+        external
+        external/basisu/transcoder
     )
 
     # Re-use ktx's compile options
@@ -1074,7 +1075,7 @@ endif()
 
 # astcenc
 set(ASTCENC_CLI OFF) # Only build as library not the CLI astcencoder
-add_subdirectory(lib/astc-encoder)
+add_subdirectory(external/astc-encoder)
 set_property(TARGET ${ASTCENC_LIB_TARGET} PROPERTY POSITION_INDEPENDENT_CODE ON)
 
 if(KTX_FEATURE_STATIC_LIBRARY AND APPLE)
@@ -1100,10 +1101,10 @@ endif()
 if((KTX_FEATURE_TOOLS OR KTX_FEATURE_TESTS) AND NOT TARGET fmt::fmt)
     set(FMT_INSTALL OFF)
     set(FMT_SYSTEM_HEADERS ON)
-    add_subdirectory(other_projects/fmt)
+    add_subdirectory(external/fmt)
 endif()
 if(KTX_FEATURE_TOOLS AND NOT TARGET cxxopts::cxxopts)
-    add_subdirectory(other_projects/cxxopts)
+    add_subdirectory(external/cxxopts)
 endif()
 
 # Tools