Moved C++ tools out

tools/texturetool/CMakeLists.txt

@@ -0,0 +1,50 @@
+# Copyright (c) 2021 Dominic Msters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Tool Function
+function(tool_texture target)
+  # Defaults
+  set(FILE "" )
+  set(FILTER_MIN "")
+  set(FILTER_MAG "")
+  set(WRAP_X "")
+  set(WRAP_Y "")
+  set(SCALE "")
+  set(CROP_START_X "")
+  set(CROP_START_Y "")
+  set(CROP_END_X "")
+  set(CROP_END_Y "")
+
+  # Parse Args
+  foreach(_PAIR IN LISTS ARGN)
+    if (_PAIR MATCHES "^([^:]+)=(.*)$")
+      set(${CMAKE_MATCH_1} ${CMAKE_MATCH_2})
+    else()
+      message(FATAL_ERROR "Invalid pair: ${_PAIR}")
+    endif()
+  endforeach()
+
+  # Check for missing args
+  if(NOT DEFINED FILE)
+    message(FATAL_ERROR "Missing FILE input")
+  endif()
+  
+  add_custom_target(${target}
+    COMMAND ${DAWN_TOOLS_DIR}/texturetool/texturetool.py
+      --input="${FILE}"
+      --output="${DAWN_ASSETS_BUILD_DIR}/${target}.texture"
+      --wrap-x="${WRAP_X}"
+      --wrap-y="${WRAP_Y}"
+      --filter-min="${FILTER_MIN}"
+      --filter-mag="${FILTER_MIN}"
+      --scale="${SCALE}"
+      --crop-start-x="${CROP_START_X}"
+      --crop-start-y="${CROP_START_Y}"
+      --crop-end-x="${CROP_END_X}"
+      --crop-end-y="${CROP_END_Y}"
+    COMMENT "Generating texture ${target} from ${FILE}"
+  )
+  add_dependencies(dawnassets ${target})
+endfunction()