Started fixing texture tool (incomplete)

src/dawntools/texturetool/CMakeLists.txt

@@ -0,0 +1,53 @@
+# Copyright (c) 2021 Dominic Msters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Texture Build Tool
+project(texturetool VERSION 1.0)
+add_executable(texturetool)
+
+target_sources(texturetool
+  PRIVATE
+    ${DAWN_SHARED_SOURCES}
+    ${DAWN_TOOL_SOURCES}
+    TextureTool.cpp
+    ../util/Image.cpp
+)
+
+target_include_directories(texturetool
+  PUBLIC
+    ${DAWN_SHARED_INCLUDES}
+    ${DAWN_TOOL_INCLUDES}
+    ${CMAKE_CURRENT_LIST_DIR}
+)
+
+# Definitions
+target_compile_definitions(texturetool
+  PUBLIC
+    ${DAWN_SHARED_DEFINITIONS}
+    DAWN_TOOL_INSTANCE=TextureTool
+    DAWN_TOOL_HEADER="TextureTool.hpp"
+)
+
+# Libraries
+target_link_libraries(texturetool
+  PUBLIC
+    ${DAWN_BUILD_HOST_LIBS}
+    stb
+)
+
+# Tool Function
+function(tool_texture target in)
+  set(DEPS "")
+  if(DAWN_BUILD_TOOLS)
+    set(DEPS texturetool)
+  endif()
+
+  add_custom_target(${target}
+    COMMAND texturetool --input="${DAWN_ASSETS_SOURCE_DIR}/${in}" --output="${DAWN_ASSETS_BUILD_DIR}/${target}"
+    COMMENT "Generating texture ${target} from ${in}"
+    DEPENDS ${DEPS}
+  )
+  add_dependencies(${DAWN_TARGET_NAME} ${target})
+endfunction()