Updated Packaging for Debian.

.clang-format

@@ -0,0 +1,288 @@
+---
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+AlignArrayOfStructures: None
+AlignConsecutiveAssignments:
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+AllowShortLoopsOnASingleLine: false
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+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AttributeMacros:
+  - __capability
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+BinPackParameters: BinPack
+BitFieldColonSpacing: Both
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+  AfterClass:      false
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+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
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+  - KJ_IF_MAYBE
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+  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
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+  - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
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+MacroBlockEnd:   ''
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+SpaceBeforeParens: ControlStatements
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+  AfterFunctionDefinitionName: false
+  AfterFunctionDeclarationName: false
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+  Maximum:         -1
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+  ExceptDoubleParentheses: false
+  InCStyleCasts:   false
+  InConditionalStatements: false
+  InEmptyParentheses: false
+  Other:           false
+SpacesInSquareBrackets: false
+Standard:        Latest
+StatementAttributeLikeMacros:
+  - Q_EMIT
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TableGenBreakInsideDAGArg: DontBreak
+TabWidth:        8
+UseTab:          Never
+VerilogBreakBetweenInstancePorts: true
+WhitespaceSensitiveMacros:
+  - BOOST_PP_STRINGIZE
+  - CF_SWIFT_NAME
+  - NS_SWIFT_NAME
+  - PP_STRINGIZE
+  - STRINGIZE
+WrapNamespaceBodyWithEmptyLines: Leave
+...
+

.gitignore

@@ -0,0 +1,3 @@
+build/
+imgui.ini
+.vscode/

CMakeLists.txt

@@ -10,41 +10,101 @@ project(hdk-sdl
 # This is a header-only library; src/ files are not compiled into any targets.
 
 # hdk-sdl OPTIONS
-option(HDK_SDL_TESTS "Build hdk-sdl tests" ${HDK_TESTS})
-option(HDK_SDL_EXAMPLES "Build hdk-sdl examples" ${HDK_EXAMPLES})
-option(HDK_SDL_INSTALL_TARGETS "Enable hdk-sdl install/export stubs" ON)
-option(HDK_SDL_SYSTEM_SDL3 "Use system SDL3 instead of FetchContent for building" OFF)
-option(HDK_SDL_BUNDLE_SDL3 "Build and bundle SDL3 as a static lib with hdk-sdl install" OFF)
+option(HDK_TESTS "Build hdk-sdl tests" OFF)
+option(HDK_EXAMPLES "Build hdk-sdl examples" OFF)
+option(HDK_INSTALL_TARGETS "Enable hdk-sdl install/export stubs" ON)
+option(HDK_BUNDLE_SDL3 "Build and bundle SDL3 as a static lib with hdk-sdl install" OFF)
 
-if(HDK_SDL_SYSTEM_SDL3 AND HDK_SDL_BUNDLE_SDL3)
-  message(FATAL_ERROR "HDK_SDL_SYSTEM_SDL3 and HDK_SDL_BUNDLE_SDL3 are mutually exclusive")
+if(NOT DEFINED HDK_USE_SYSTEM_DEPS)
+  set(HDK_USE_SYSTEM_DEPS ON)
 endif()
 
-if(HDK_SDL_EXAMPLES)
+if(DEFINED HDK_CMAKE_POLICY_DIR AND EXISTS "${HDK_CMAKE_POLICY_DIR}/HDKDependencyPolicy.cmake")
+  include("${HDK_CMAKE_POLICY_DIR}/HDKDependencyPolicy.cmake")
+elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake/HDKDependencyPolicy.cmake")
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../cmake/HDKDependencyPolicy.cmake")
+elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/cmake/HDKDependencyPolicy.cmake")
+  include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/HDKDependencyPolicy.cmake")
+else()
+  message(FATAL_ERROR "Unable to locate HDKDependencyPolicy.cmake")
+endif()
+
+option(HDK_SYSTEM_SDL3 "Prefer system SDL3 before FetchContent fallback" ${HDK_USE_SYSTEM_DEPS})
+option(HDK_FETCH_SDL3_FALLBACK "Fetch SDL3 when a suitable system package is unavailable" ON)
+option(HDK_SYSTEM_HDK_GRID "Prefer system hdk-grid before FetchContent fallback" ${HDK_USE_SYSTEM_DEPS})
+option(HDK_FETCH_HDK_GRID_FALLBACK "Fetch hdk-grid when a suitable system package is unavailable" ON)
+
+if(NOT DEFINED HDK_SDL3_MIN_VERSION)
+  set(HDK_SDL3_MIN_VERSION "3.4.8")
+endif()
+
+if(NOT DEFINED HDK_GRID_MIN_VERSION)
+  set(HDK_GRID_MIN_VERSION "0.0.1")
+endif()
+
+if(NOT DEFINED HDK_GRID_GIT_REPOSITORY)
+  set(HDK_GRID_GIT_REPOSITORY "https://git.ufp.institute/ufp/hdk-grid.git")
+endif()
+
+if(NOT DEFINED HDK_GRID_GIT_TAG)
+  set(HDK_GRID_GIT_TAG "v${HDK_GRID_MIN_VERSION}")
+endif()
+
+if(HDK_SYSTEM_SDL3 AND HDK_BUNDLE_SDL3)
+  message(FATAL_ERROR "HDK_SYSTEM_SDL3 and HDK_BUNDLE_SDL3 are mutually exclusive")
+endif()
+
+if(HDK_EXAMPLES)
   add_subdirectory(examples)
 endif()
 
+hdk_resolve_dependency(
+  NAME hdk-grid
+  TARGETS hdk::hdk-grid hdk-grid
+  PACKAGE_NAMES hdk-grid
+  MIN_VERSION ${HDK_GRID_MIN_VERSION}
+  USE_SYSTEM ${HDK_SYSTEM_HDK_GRID}
+  FETCH_FALLBACK ${HDK_FETCH_HDK_GRID_FALLBACK}
+  GIT_REPOSITORY ${HDK_GRID_GIT_REPOSITORY}
+  GIT_TAG ${HDK_GRID_GIT_TAG}
+  FETCHCONTENT_NAME hdk-grid
+)
+
+if(TARGET hdk-grid AND NOT TARGET hdk::hdk-grid)
+  add_library(hdk::hdk-grid ALIAS hdk-grid)
+endif()
+
 # FOR SDL Building
-if(NOT HDK_SDL_SYSTEM_SDL3)
+set(_hdk_sdl_need_fetch_sdl3 ON)
+if(TARGET SDL3::SDL3)
+  set(_hdk_sdl_need_fetch_sdl3 OFF)
+elseif(HDK_SYSTEM_SDL3)
+  find_package(SDL3 ${HDK_SDL3_MIN_VERSION} QUIET CONFIG)
+  if(SDL3_FOUND)
+    set(_hdk_sdl_need_fetch_sdl3 OFF)
+  elseif(NOT HDK_FETCH_SDL3_FALLBACK)
+    message(FATAL_ERROR "SDL3 >= ${HDK_SDL3_MIN_VERSION} not found and HDK_FETCH_SDL3_FALLBACK=OFF")
+  endif()
+endif()
+
+if(_hdk_sdl_need_fetch_sdl3)
   set(SDL_TEST OFF CACHE BOOL "Disable SDL tests" FORCE)
   set(SDL_EXAMPLES OFF CACHE BOOL "Disable SDL examples" FORCE)
   set(SDL_INSTALL OFF CACHE BOOL "Disable SDL install" FORCE)
   # NOTE: Possibly disable SDL_PIPEWIRE and/or SDL_PIPEWIRE_SHARED?
-  
-  if(HDK_SDL_BUNDLE_SDL3)
+
+  if(HDK_BUNDLE_SDL3)
     set(SDL_STATIC ON CACHE BOOL "Build SDL3 as static library for bundling" FORCE)
     set(SDL_SHARED OFF CACHE BOOL "Disable SDL3 shared library for bundling" FORCE)
   endif()
-  
+
   include(FetchContent)
   FetchContent_Declare(
     SDL3
     GIT_REPOSITORY https://github.com/libsdl-org/SDL.git
-    GIT_TAG release-3.4.8
+    GIT_TAG release-${HDK_SDL3_MIN_VERSION}
   )
   FetchContent_MakeAvailable(SDL3)
-else()
-  find_package(SDL3 REQUIRED)
 endif()
 
 include(GNUInstallDirs)
@@ -52,7 +112,7 @@ include(GNUInstallDirs)
 add_library(hdk-sdl INTERFACE)
 target_link_libraries(hdk-sdl INTERFACE
   $<BUILD_INTERFACE:SDL3::SDL3>
-  $<BUILD_INTERFACE:hdk-grid>
+  $<BUILD_INTERFACE:hdk::hdk-grid>
   $<INSTALL_INTERFACE:SDL3::SDL3>
   $<INSTALL_INTERFACE:hdk::hdk-grid>
 )
@@ -62,15 +122,16 @@ target_include_directories(hdk-sdl INTERFACE
 )
 target_compile_features(hdk-sdl INTERFACE cxx_std_17)
 
-if(HDK_SDL_INSTALL_TARGETS)
+if(HDK_INSTALL_TARGETS)
   include(CMakePackageConfigHelpers)
 
   install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/
     DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+    COMPONENT hdk-sdl_dev
   )
 
   # Choose config file based on bundle mode
-  if(HDK_SDL_BUNDLE_SDL3)
+  if(HDK_BUNDLE_SDL3)
     set(_hdk_sdl_config_file hdk-sdlConfig-bundled.cmake.in)
   else()
     set(_hdk_sdl_config_file hdk-sdlConfig.cmake.in)
@@ -93,16 +154,19 @@ if(HDK_SDL_INSTALL_TARGETS)
     ${CMAKE_CURRENT_BINARY_DIR}/hdk-sdlConfig.cmake
     ${CMAKE_CURRENT_BINARY_DIR}/hdk-sdlConfigVersion.cmake
     DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/hdk-sdl
+    COMPONENT hdk-sdl_dev
   )
 
   # Bundled SDL3 install rules
-  if(HDK_SDL_BUNDLE_SDL3)
+  if(HDK_BUNDLE_SDL3)
     install(FILES $<TARGET_FILE:SDL3-static>
       DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/hdk-sdl/sdl3-static
+      COMPONENT hdk-sdl_dev
     )
 
-    install(DIRECTORY ${sdl3_SOURCE_DIR}/include/
+    install(DIRECTORY ${SDL3_SOURCE_DIR}/include/
       DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+      COMPONENT hdk-sdl_dev
     )
 
     configure_file(
@@ -113,11 +177,31 @@ if(HDK_SDL_INSTALL_TARGETS)
 
     install(FILES ${CMAKE_CURRENT_BINARY_DIR}/hdk-sdlBundledSDL3Targets.cmake
       DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/hdk-sdl
+      COMPONENT hdk-sdl_dev
     )
   endif()
 endif()
 
-if(HDK_SDL_TESTS)
+if(HDK_TESTS)
   add_subdirectory(test)
 endif()
 
+
+# Install metadata files for release package
+install(FILES
+  ${CMAKE_CURRENT_SOURCE_DIR}/README.md
+  ${CMAKE_CURRENT_SOURCE_DIR}/../CHANGELOG.md
+  DESTINATION ${CMAKE_INSTALL_DOCDIR}/hdk-sdl
+  COMPONENT hdk-sdl_release
+  OPTIONAL
+)
+
+# Documentation Policy
+include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/HDKDocumentationPolicy.cmake)
+
+# Set package dependencies for building debian packages correctly
+set(hdk-sdl_DEBIAN_DEV_DEPENDS "hdk-grid-dev (>= ${HDK_GRID_MIN_VERSION}), libsdl3-dev")
+set(hdk-sdl_DEBIAN_EXAMPLES_DEPENDS "hdk-sdl (>= 0.0.1), hdk-assets (>= 0.0.1)")
+
+# CPack Packaging Policy
+include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/HDKPackaging.cmake)

CMakePresets.json

@@ -0,0 +1,101 @@
+{
+  "version": 6,
+  "cmakeMinimumRequired": {
+    "major": 3,
+    "minor": 20,
+    "patch": 0
+  },
+  "configurePresets": [
+    {
+      "name": "base",
+      "hidden": true,
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Debug"
+      }
+    },
+    {
+      "name": "dev",
+      "displayName": "Dev",
+      "description": "Tests + examples enabled",
+      "inherits": "base",
+      "cacheVariables": {
+        "HDK_TESTS": "ON"
+      }
+    },
+    {
+      "name": "coverage",
+      "displayName": "Coverage",
+      "description": "Tests + coverage instrumentation",
+      "inherits": "dev",
+      "cacheVariables": {
+        "HDK_COVERAGE": "ON"
+      }
+    },
+    {
+      "name": "docs",
+      "displayName": "Docs",
+      "description": "Documentation only",
+      "inherits": "base",
+      "cacheVariables": {
+        "HDK_DOCS": "ON"
+      }
+    },
+    {
+      "name": "release",
+      "displayName": "Release",
+      "description": "Optimised release build with examples",
+      "inherits": "base",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Release",
+        "HDK_EXAMPLES": "ON",
+        "HDK_INSTALL_EXAMPLES": "ON",
+        "HDK_DOCS": "ON"
+      }
+    }
+  ],
+  "buildPresets": [
+    {
+      "name": "dev",
+      "configurePreset": "dev"
+    },
+    {
+      "name": "coverage",
+      "configurePreset": "coverage"
+    },
+    {
+      "name": "docs",
+      "configurePreset": "docs"
+    },
+    {
+      "name": "release",
+      "configurePreset": "release"
+    }
+  ],
+  "testPresets": [
+    {
+      "name": "test-dev",
+      "displayName": "Test (dev)",
+      "configurePreset": "dev",
+      "output": {
+        "outputOnFailure": true
+      }
+    },
+    {
+      "name": "test-coverage",
+      "displayName": "Test (coverage)",
+      "configurePreset": "coverage",
+      "output": {
+        "outputOnFailure": true
+      }
+    }
+  ],
+  "packagePresets": [
+    {
+      "name": "Release",
+      "description": "",
+      "displayName": "",
+      "configurePreset": "release"
+    }
+  ]
+}

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
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README.md

@@ -6,9 +6,25 @@ Use classes without declaring pointers to them, knowing that copying or referenc
 
 ## Dependencies
 
-- holodeck-grid
+- [hdk-grid](https://git.ufp.institute/ufp/hdk-grid.git)
 - [SDL3](https://www.libsdl.org/)
 
+## Building
+
+To build the hdk-sdl, checkout the source, change into the source directory, make a build directory & run the following commands in the root of the repository:
+
+```bash
+git clone https://git.ufp.institute/ufp/hdk-sdl.git
+mkdir build-hdk-sdl
+cd build-hdk-sdl
+cmake ../hdk-sdl
+cmake --build .
+```
+
+This may require the building of SDL if your system does not have the required version installed.
+See [SDL3 Build Dependencies](https://wiki.libsdl.org/SDL3/README-linux#build-dependencies) if SDL fails to build on your machine.
+
+
 ## Naming Conventions
 
 API that is 1 to 1 with SDL with otherwise minimal wrapping will be as close to the original SDL function call as possible: for example, `SDL_CreateWindow` will be wrapped by `hd::sdl::Window::Create`.
@@ -29,162 +45,39 @@ Within `include/hdk/sdl` there are folders for each SDL3 header files, and withi
 
 With this entirely header-only and inline design, there is no need for a corresponding .cpp and the resulting compiled code should be as efficient as if you were using the raw SDL3 API directly, while still benefiting from the safety and convenience of C++ RAII and wrapper classes.
 
-## SDL API Coverage
+## Dependency Resolution
 
-Most links are from Links from [API by Category](https://wiki.libsdl.org/SDL3/APIByCategory), then those respective pages are used to fill in the rest of the checklist.
+`hdk-sdl` resolves SDL3 with a system-first policy by default:
 
-In progress/complete:
+1. Try `find_package(SDL3 <minimum>)`.
+2. If unavailable or too old, fall back to `FetchContent`.
 
-- By category:
-- [ ] BASICS
-  - [~] [Category Video][]
-    - [x] `hdk::sdl::Window`
-    - [x] `hdk::sdl::Display`
-  - [ ] [Category Surface][]
-    - [x] `hdk::sdl::Surface`
-  - [ ] [Category Main][]
-  - [ ] [Category Init][]
-  - [ ] [Category Hints][]
-  - [x] [Category Properties][]
-  - [ ] [Category Error][]
-  - [ ] [Category Log][]
-  - [ ] [Category Assert][]
-  - [ ] [Category Version][]
-  - [ ] [Category Events][]
-  - [ ] [Category Keyboard][]
-  - [ ] [Category Keycode][]
-  - [ ] [Category Scancode][]
-  - [ ] [Category Mouse][]
-  - [ ] [Category Joystick][]
-  - [ ] [Category Gamepad][]
-  - [ ] [Category Touch][]
-  - [ ] [Category Pen][]
-  - [ ] [Category Sensor][]
-  - [ ] [Category HIDAPI][]
-- [ ] [Category Render][]
-- [ ] [Category Pixels][]
-- [ ] [Category Blendmode][]
-- [ ] [Category Rect][]
-- [ ] [Category Clipboard][]
-- [ ] [Category Vulkan][]
-- [ ] [Category Metal][]
-- [ ] [Category Camera][]
-- [ ] HAPTIC
-  - [ ] [Category Haptic][]
-- [ ] AUDIO
-  - [ ] [Category Audio][]
-- [ ] GPU
-  - [ ] [Category GPU][]
-- [ ] Time
-  - [ ] [Category Timer][]
-  - [ ] [Category Time][]
-- [ ] THREADS
-  - [ ] [Category Thread][]
-  - [ ] [Category Mutex][]
-  - [ ] [Category Atomic][]
-- [ ] FILE I/O
-  - [ ] [Category Filesystem][]
-  - [ ] [Category Storage][]
-  - [ ] [Category IOStream][]
-  - [ ] [Category AsyncIO][]
-- [ ] PLATFORM
-  - [ ] [Category Platform][]
-  - [ ] [Category CPUInfo][]
-  - [ ] [Category Intrinsics][]
-  - [ ] [Category Endian][]
-  - [ ] [Category Bits][]
-- [ ] MISC
-  - [N] [Category Shared Object][]
-  - [ ] [Category Process][]
-  - [ ] [Category Power][]
-  - [ ] [Category Messagebox][]
-  - [ ] [Category Dialog][]
-  - [ ] [Category Tray][]
-  - [ ] [Category Locale][]
-  - [ ] [Category System][]
-  - [ ] [Category Stdinc][]
-  - [ ] [Category GUID][]
-  - [ ] [Category Misc][]
+Relevant CMake options:
 
-<!--A-->
-[Category Shared Object]: <https://wiki.libsdl.org/SDL3/CategorySharedObject>
-[Category Assert]: https://wiki.libsdl.org/SDL3/CategoryAssert
-[Category AsyncIO]: <https://wiki.libsdl.org/SDL3/CategoryAsyncIO>
-[Category Atomic]: <https://wiki.libsdl.org/SDL3/CategoryAtomic>
-[Category Audio]: <https://wiki.libsdl.org/SDL3/CategoryAudio>
-<!--B-->
-[Category Bits]: <https://wiki.libsdl.org/SDL3/CategoryBits>
-[Category Blendmode]: <https://wiki.libsdl.org/SDL3/CategoryBlendmode>
-<!--C-->
-[Category Camera]: <https://wiki.libsdl.org/SDL3/CategoryCamera>
-[Category CPUInfo]: <https://wiki.libsdl.org/SDL3/CategoryCPUInfo>
-<!--D-->
-[Category Dialog]: <https://wiki.libsdl.org/SDL3/CategoryDialog>
-<!--E-->
-[Category Endian]: <https://wiki.libsdl.org/SDL3/CategoryEndian>
-[Category Error]: https://wiki.libsdl.org/SDL3/CategoryError
-[Category Events]: <https://wiki.libsdl.org/SDL3/CategoryEvents>
-<!--F-->
-[Category Filesystem]: <https://wiki.libsdl.org/SDL3/CategoryFilesystem>
-<!--G-->
-[Category Gamepad]: <https://wiki.libsdl.org/SDL3/CategoryGamepad>
-[Category GPU]: <https://wiki.libsdl.org/SDL3/CategoryGPU>
-[Category GUID]: <https://wiki.libsdl.org/SDL3/CategoryGUID>
-<!--H-->
-[Category Haptic]: <https://wiki.libsdl.org/SDL3/CategoryHaptic>
-[Category HIDAPI]: <https://wiki.libsdl.org/SDL3/CategoryHIDAPI>
-[Category Hints]: https://wiki.libsdl.org/SDL3/CategoryHints
-<!--I-->
-[Category Init]: https://wiki.libsdl.org/SDL3/CategoryInit
-[Category Intrinsics]: <https://wiki.libsdl.org/SDL3/CategoryIntrinsics>
-[Category IOStream]: <https://wiki.libsdl.org/SDL3/CategoryIOStream>
-<!--J-->
-[Category Joystick]: <https://wiki.libsdl.org/SDL3/CategoryJoystick>
-<!--K-->
-[Category Keyboard]: <https://wiki.libsdl.org/SDL3/CategoryKeyboard>
-[Category Keycode]: <https://wiki.libsdl.org/SDL3/CategoryKeycode>
-<!--L-->
-[Category Locale]: <https://wiki.libsdl.org/SDL3/CategoryLocale>
-[Category Log]: https://wiki.libsdl.org/SDL3/CategoryLog
-<!--M-->
-[Category Main]: https://wiki.libsdl.org/SDL3/CategoryMain
-[Category Messagebox]: <https://wiki.libsdl.org/SDL3/CategoryMessagebox>
-[Category Metal]: <https://wiki.libsdl.org/SDL3/CategoryMetal>
-[Category Misc]: <https://wiki.libsdl.org/SDL3/CategoryMisc>
-[Category Mouse]: <https://wiki.libsdl.org/SDL3/CategoryMouse>
-[Category Mutex]: <https://wiki.libsdl.org/SDL3/CategoryMutex>
-<!--N-->
-<!--O-->
-<!--P-->
-[Category Pen]: <https://wiki.libsdl.org/SDL3/CategoryPen>
-[Category Pixels]: <https://wiki.libsdl.org/SDL3/CategoryPixels>
-[Category Platform]: <https://wiki.libsdl.org/SDL3/CategoryPlatform>
-[Category Power]: <https://wiki.libsdl.org/SDL3/CategoryPower>
-[Category Process]: <https://wiki.libsdl.org/SDL3/CategoryProcess>
-[Category Properties]: https://wiki.libsdl.org/SDL3/CategoryProperties
-<!--Q-->
-<!--R-->
-[Category Rect]: <https://wiki.libsdl.org/SDL3/CategoryRect>
-[Category Render]: <https://wiki.libsdl.org/SDL3/CategoryRender>
-<!--S-->
-[Category Scancode]: <https://wiki.libsdl.org/SDL3/CategoryScancode>
-[Category Sensor]: <https://wiki.libsdl.org/SDL3/CategorySensor>
-[Category Stdinc]: <https://wiki.libsdl.org/SDL3/CategoryStdinc>
-[Category Storage]: <https://wiki.libsdl.org/SDL3/CategoryStorage>
-[Category Surface]: <https://wiki.libsdl.org/SDL3/CategorySurface>
-[Category System]: <https://wiki.libsdl.org/SDL3/CategorySystem>
-<!--T-->
-[Category Thread]: <https://wiki.libsdl.org/SDL3/CategoryThread>
-[Category Time]: <https://wiki.libsdl.org/SDL3/CategoryTime>
-[Category Timer]: <https://wiki.libsdl.org/SDL3/CategoryTimer>
-[Category Touch]: <https://wiki.libsdl.org/SDL3/CategoryTouch>
-[Category Tray]: <https://wiki.libsdl.org/SDL3/CategoryTray>
-<!--U-->
-<!--V-->
-[Category Version]: https://wiki.libsdl.org/SDL3/CategoryVersion
-[Category Video]: https://wiki.libsdl.org/SDL3/CategoryVideo
-[Category Vulkan]: <https://wiki.libsdl.org/SDL3/CategoryVulkan>
-<!--W-->
-<!--X-->
-<!--Y-->
-<!--Z-->
+- `HDK_SDL_SYSTEM_SDL3`
+- `HDK_SDL_FETCH_SDL3_FALLBACK`
+- `HDK_SDL_MIN_SDL3_VERSION`
+
+## Example Assets
+
+When building examples, `hdk-sdl` resolves shared assets in this order:
+
+1. Repository checkout assets (when building inside the HDK monorepo)
+2. Installed `hdk-assets` package with minimum version
+3. `FetchContent` fallback from `HDK_SDL_EXAMPLES_ASSETS_GIT_REPOSITORY`
+
+Relevant CMake options:
+
+- `HDK_SDL_EXAMPLES_FETCH_ASSETS`
+- `HDK_SDL_EXAMPLES_ASSETS_MIN_VERSION`
+- `HDK_SDL_EXAMPLES_ASSETS_GIT_REPOSITORY`
+- `HDK_SDL_EXAMPLES_ASSETS_GIT_TAG`
+
+## Installation Layout
+
+Installed examples and assets are organized under one prefix using GNU install dirs.
+
+- Example binaries: `${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_BINDIR}`
+- Shared assets: `${CMAKE_INSTALL_PREFIX}/${HDK_SDL_EXAMPLES_INSTALL_ASSETSDIR}`
+
+The default shared assets directory is `assets`, giving `${CMAKE_INSTALL_PREFIX}/assets`.

cmake/HDKDependencyPolicy.cmake

@@ -0,0 +1,91 @@
+include(CMakeParseArguments)
+
+# Resolve a dependency in this order:
+# 1) already-defined target(s)
+# 2) find_package() system package(s)
+# 3) FetchContent fallback
+function(hdk_resolve_dependency)
+  set(_opts "")
+  set(_one_value NAME MIN_VERSION USE_SYSTEM FETCH_FALLBACK GIT_REPOSITORY GIT_TAG FETCHCONTENT_NAME OUT_VAR)
+  set(_multi_value TARGETS PACKAGE_NAMES)
+  cmake_parse_arguments(HDK_DEP "${_opts}" "${_one_value}" "${_multi_value}" ${ARGN})
+
+  if(NOT HDK_DEP_NAME)
+    message(FATAL_ERROR "hdk_resolve_dependency requires NAME")
+  endif()
+  if(NOT HDK_DEP_TARGETS)
+    message(FATAL_ERROR "hdk_resolve_dependency(${HDK_DEP_NAME}) requires TARGETS")
+  endif()
+  if(NOT HDK_DEP_FETCHCONTENT_NAME)
+    message(FATAL_ERROR "hdk_resolve_dependency(${HDK_DEP_NAME}) requires FETCHCONTENT_NAME")
+  endif()
+
+  set(_hdk_dep_resolved_target "")
+  foreach(_target IN LISTS HDK_DEP_TARGETS)
+    if(TARGET ${_target})
+      set(_hdk_dep_resolved_target ${_target})
+      break()
+    endif()
+  endforeach()
+
+  if(NOT _hdk_dep_resolved_target AND HDK_DEP_USE_SYSTEM)
+    foreach(_pkg IN LISTS HDK_DEP_PACKAGE_NAMES)
+      if(HDK_DEP_MIN_VERSION)
+        find_package(${_pkg} ${HDK_DEP_MIN_VERSION} QUIET CONFIG)
+      else()
+        find_package(${_pkg} QUIET CONFIG)
+      endif()
+
+      foreach(_target IN LISTS HDK_DEP_TARGETS)
+        if(TARGET ${_target})
+          set(_hdk_dep_resolved_target ${_target})
+          break()
+        endif()
+      endforeach()
+
+      if(_hdk_dep_resolved_target)
+        break()
+      endif()
+    endforeach()
+  endif()
+
+  if(NOT _hdk_dep_resolved_target)
+    if(NOT HDK_DEP_FETCH_FALLBACK)
+      if(HDK_DEP_MIN_VERSION)
+        message(FATAL_ERROR "${HDK_DEP_NAME} >= ${HDK_DEP_MIN_VERSION} not found and fallback is disabled")
+      else()
+        message(FATAL_ERROR "${HDK_DEP_NAME} not found and fallback is disabled")
+      endif()
+    endif()
+
+    if(NOT HDK_DEP_GIT_REPOSITORY)
+      message(FATAL_ERROR "hdk_resolve_dependency(${HDK_DEP_NAME}) fallback requires GIT_REPOSITORY")
+    endif()
+    if(NOT HDK_DEP_GIT_TAG)
+      message(FATAL_ERROR "hdk_resolve_dependency(${HDK_DEP_NAME}) fallback requires GIT_TAG")
+    endif()
+
+    include(FetchContent)
+    FetchContent_Declare(
+      ${HDK_DEP_FETCHCONTENT_NAME}
+      GIT_REPOSITORY ${HDK_DEP_GIT_REPOSITORY}
+      GIT_TAG ${HDK_DEP_GIT_TAG}
+    )
+    FetchContent_MakeAvailable(${HDK_DEP_FETCHCONTENT_NAME})
+
+    foreach(_target IN LISTS HDK_DEP_TARGETS)
+      if(TARGET ${_target})
+        set(_hdk_dep_resolved_target ${_target})
+        break()
+      endif()
+    endforeach()
+  endif()
+
+  if(NOT _hdk_dep_resolved_target)
+    message(FATAL_ERROR "${HDK_DEP_NAME} could not be resolved to any expected target: ${HDK_DEP_TARGETS}")
+  endif()
+
+  if(HDK_DEP_OUT_VAR)
+    set(${HDK_DEP_OUT_VAR} ${_hdk_dep_resolved_target} PARENT_SCOPE)
+  endif()
+endfunction()

cmake/HDKDocumentationPolicy.cmake

@@ -0,0 +1,70 @@
+# HDK Documentation Policy
+include(GNUInstallDirs)
+
+option(HDK_DOCS "Build documentation for ${PROJECT_NAME}" OFF)
+
+if(HDK_DOCS)
+  find_package(Doxygen)
+  if(DOXYGEN_FOUND)
+    set(DOXYGEN_GENERATE_HTML YES)
+    set(DOXYGEN_GENERATE_MAN YES)
+    set(DOXYGEN_GENERATE_LATEX YES)
+    
+    set(DOXYGEN_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/docs)
+    set(DOXYGEN_STRIP_FROM_PATH ${CMAKE_CURRENT_SOURCE_DIR})
+    set(DOXYGEN_EXTRACT_ALL YES)
+    set(DOXYGEN_DIRECTORY_GRAPH YES)
+    set(DOXYGEN_JAVADOC_BANNER YES)
+    set(DOXYGEN_JAVADOC_AUTOBRIEF YES)
+    set(DOXYGEN_DOT_IMAGE_FORMAT svg)
+    set(DOXYGEN_INTERACTIVE_SVG YES)
+    set(DOXYGEN_INTERNAL_DOCS YES)
+    set(DOXYGEN_TIMESTAMP YES)
+    set(DOXYGEN_RECURSIVE YES)
+    set(DOXYGEN_TAB_SIZE 2)
+    set(DOXYGEN_BUILTIN_STL_SUPPORT YES)
+    set(DOXYGEN_HTML_DYNAMIC_SECTIONS YES)
+    set(DOXYGEN_GENERATE_TREEVIEW YES)
+    set(DOXYGEN_FULL_SIDEBAR YES)
+    set(DOXYGEN_QUIET YES)
+    set(DOXYGEN_SOURCE_BROWSER YES)
+    set(DOXYGEN_VERBATIM_HEADERS YES)
+    set(DOXYGEN_REFERENCED_BY_RELATION YES)
+    set(DOXYGEN_REFERENCES_RELATION YES)
+
+    if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/INDEX.md")
+      set(DOXYGEN_USE_MDFILE_AS_MAINPAGE INDEX.md)
+      set(_hdk_doc_mainpage "${CMAKE_CURRENT_SOURCE_DIR}/INDEX.md")
+    elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/README.md")
+      set(DOXYGEN_USE_MDFILE_AS_MAINPAGE README.md)
+      set(_hdk_doc_mainpage "${CMAKE_CURRENT_SOURCE_DIR}/README.md")
+    endif()
+
+    doxygen_add_docs(${PROJECT_NAME}-docs
+      ${_hdk_doc_mainpage}
+      ${CMAKE_CURRENT_SOURCE_DIR}/include/
+      ${CMAKE_CURRENT_SOURCE_DIR}/src/
+      ${CMAKE_CURRENT_SOURCE_DIR}/*.md
+      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+      COMMENT "Generate ${PROJECT_NAME} API Documentation"
+    )
+
+    # Automatically install documentation
+    install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/docs/html/
+            DESTINATION ${CMAKE_INSTALL_DOCDIR}
+            COMPONENT ${PROJECT_NAME}_doc
+            OPTIONAL)
+            
+    install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/docs/man/man3/
+            DESTINATION ${CMAKE_INSTALL_MANDIR}/man3
+            COMPONENT ${PROJECT_NAME}_doc
+            OPTIONAL)
+            
+    install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/docs/latex/
+            DESTINATION ${CMAKE_INSTALL_DOCDIR}/latex
+            COMPONENT ${PROJECT_NAME}_doc
+            OPTIONAL)
+  else()
+    message(WARNING "Doxygen not found, API documentation will not be generated for ${PROJECT_NAME}.")
+  endif()
+endif()

cmake/HDKExampleAssetsPolicy.cmake

@@ -0,0 +1,72 @@
+include(CMakeParseArguments)
+include(FetchContent)
+
+# Resolve hdk-assets for examples only.
+function(hdk_resolve_example_assets)
+  set(_opts "")
+  set(_one_value OUT_VAR FETCH_OPTION MIN_VERSION GIT_REPOSITORY GIT_TAG CONTEXT)
+  cmake_parse_arguments(HDK_ASSETS "${_opts}" "${_one_value}" "" ${ARGN})
+
+  if(NOT HDK_ASSETS_OUT_VAR)
+    message(FATAL_ERROR "hdk_resolve_example_assets requires OUT_VAR")
+  endif()
+
+  set(_resolved_assets_dir "")
+  set(_repo_assets_dir "${CMAKE_CURRENT_SOURCE_DIR}/../../assets")
+  if(EXISTS "${_repo_assets_dir}/textures")
+    set(_resolved_assets_dir "${_repo_assets_dir}")
+  endif()
+
+  if(NOT _resolved_assets_dir)
+    if(HDK_ASSETS_MIN_VERSION)
+      find_package(hdk_assets ${HDK_ASSETS_MIN_VERSION} QUIET CONFIG NAMES hdk-assets hdk_assets)
+    else()
+      find_package(hdk_assets QUIET CONFIG NAMES hdk-assets hdk_assets)
+    endif()
+
+    foreach(_candidate_var IN ITEMS HDK_ASSETS_SOURCE_DIR HDK_ASSETS_DIR hdk_assets_SOURCE_DIR hdk_assets_DIR)
+      if(NOT _resolved_assets_dir AND DEFINED ${_candidate_var})
+        set(_candidate_dir "${${_candidate_var}}")
+        if(EXISTS "${_candidate_dir}/textures")
+          set(_resolved_assets_dir "${_candidate_dir}")
+        endif()
+      endif()
+    endforeach()
+
+    if(NOT _resolved_assets_dir AND DEFINED hdk_assets_DIR)
+      get_filename_component(_hdk_assets_prefix "${hdk_assets_DIR}" DIRECTORY)
+      get_filename_component(_hdk_assets_prefix "${_hdk_assets_prefix}" DIRECTORY)
+      get_filename_component(_hdk_assets_prefix "${_hdk_assets_prefix}" DIRECTORY)
+      if(EXISTS "${_hdk_assets_prefix}/assets/textures")
+        set(_resolved_assets_dir "${_hdk_assets_prefix}/assets")
+      endif()
+    endif()
+  endif()
+
+  if(NOT _resolved_assets_dir)
+    if(NOT HDK_ASSETS_FETCH_OPTION)
+      if(HDK_ASSETS_CONTEXT)
+        message(FATAL_ERROR "No suitable hdk-assets source found for ${HDK_ASSETS_CONTEXT} and fetch fallback is disabled")
+      else()
+        message(FATAL_ERROR "No suitable hdk-assets source found and fetch fallback is disabled")
+      endif()
+    endif()
+
+    if(NOT HDK_ASSETS_GIT_REPOSITORY)
+      message(FATAL_ERROR "hdk_resolve_example_assets fallback requires GIT_REPOSITORY")
+    endif()
+    if(NOT HDK_ASSETS_GIT_TAG)
+      message(FATAL_ERROR "hdk_resolve_example_assets fallback requires GIT_TAG")
+    endif()
+
+    FetchContent_Declare(
+      hdk_assets
+      GIT_REPOSITORY ${HDK_ASSETS_GIT_REPOSITORY}
+      GIT_TAG ${HDK_ASSETS_GIT_TAG}
+    )
+    FetchContent_MakeAvailable(hdk_assets)
+    set(_resolved_assets_dir "${hdk_assets_SOURCE_DIR}")
+  endif()
+
+  set(${HDK_ASSETS_OUT_VAR} "${_resolved_assets_dir}" PARENT_SCOPE)
+endfunction()

cmake/HDKPackaging.cmake

@@ -0,0 +1,72 @@
+# HDK Packaging Policy
+
+# Define variables for CPack
+set(CPACK_PACKAGE_NAME "${CMAKE_PROJECT_NAME}")
+set(CPACK_PACKAGE_VERSION "${CMAKE_PROJECT_VERSION}")
+set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "${CMAKE_PROJECT_DESCRIPTION}")
+
+# We mainly want component-based installations for nice split packages
+set(CPACK_DEB_COMPONENT_INSTALL ON CACHE INTERNAL "Enable component install")
+
+# Setup Debian Generator
+set(CPACK_GENERATOR "DEB" CACHE INTERNAL "Deb generator")
+set(CPACK_DEBIAN_PACKAGE_MAINTAINER "HDK Team" CACHE INTERNAL "HDK Team")
+
+# Source package generator
+set(CPACK_SOURCE_GENERATOR "TGZ;ZIP" CACHE INTERNAL "Sources")
+set(CPACK_SOURCE_IGNORE_FILES
+  "/.git/"
+  "/build/"
+  "/build.*/"
+  ".*~$"
+  CACHE INTERNAL "Ignores"
+)
+
+# Component specific configurations
+string(TOUPPER "${PROJECT_NAME}" UPPER_PROJ_NAME)
+
+# CPack explicitly needs UPPERCASE. Hyphens must remain hyphens in modern CMake CPack.
+# Only include RELEASE component for actual library/asset projects, not the root
+if(NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+  set(COMP_RELEASE "${UPPER_PROJ_NAME}_RELEASE")
+endif()
+
+set(COMP_DEV "${UPPER_PROJ_NAME}_DEV")
+set(COMP_DOC "${UPPER_PROJ_NAME}_DOC")
+set(COMP_EXAMPLES "${UPPER_PROJ_NAME}_EXAMPLES")
+
+if(DEFINED COMP_RELEASE)
+  set(CPACK_DEBIAN_${COMP_RELEASE}_PACKAGE_NAME "${PROJECT_NAME}" CACHE INTERNAL "")
+  set(CPACK_DEBIAN_${COMP_RELEASE}_FILE_NAME "${PROJECT_NAME}-${CPACK_PACKAGE_VERSION}.deb" CACHE INTERNAL "")
+endif()
+
+set(CPACK_DEBIAN_${COMP_DEV}_PACKAGE_NAME "${PROJECT_NAME}-dev" CACHE INTERNAL "")
+set(CPACK_DEBIAN_${COMP_DOC}_PACKAGE_NAME "${PROJECT_NAME}-doc" CACHE INTERNAL "")
+set(CPACK_DEBIAN_${COMP_EXAMPLES}_PACKAGE_NAME "${PROJECT_NAME}-examples" CACHE INTERNAL "")
+
+set(CPACK_DEBIAN_${COMP_DEV}_FILE_NAME "${PROJECT_NAME}-${CPACK_PACKAGE_VERSION}-dev.deb" CACHE INTERNAL "")
+set(CPACK_DEBIAN_${COMP_DOC}_FILE_NAME "${PROJECT_NAME}-${CPACK_PACKAGE_VERSION}-doc.deb" CACHE INTERNAL "")
+set(CPACK_DEBIAN_${COMP_EXAMPLES}_FILE_NAME "${PROJECT_NAME}-${CPACK_PACKAGE_VERSION}-examples.deb" CACHE INTERNAL "")
+
+# Apply dependencies for each component
+if(DEFINED ${PROJECT_NAME}_DEBIAN_RELEASE_DEPENDS)
+    set(CPACK_DEBIAN_${COMP_RELEASE}_PACKAGE_DEPENDS "${${PROJECT_NAME}_DEBIAN_RELEASE_DEPENDS}" CACHE INTERNAL "")
+endif()
+
+if(DEFINED ${PROJECT_NAME}_DEBIAN_DEV_DEPENDS)
+    set(CPACK_DEBIAN_${COMP_DEV}_PACKAGE_DEPENDS "${${PROJECT_NAME}_DEBIAN_DEV_DEPENDS}" CACHE INTERNAL "")
+elseif(DEFINED ${PROJECT_NAME}_DEBIAN_DEPENDS)
+    set(CPACK_DEBIAN_${COMP_DEV}_PACKAGE_DEPENDS "${${PROJECT_NAME}_DEBIAN_DEPENDS}" CACHE INTERNAL "")
+endif()
+
+if(DEFINED ${PROJECT_NAME}_DEBIAN_EXAMPLES_DEPENDS)
+    set(CPACK_DEBIAN_${COMP_EXAMPLES}_PACKAGE_DEPENDS "${${PROJECT_NAME}_DEBIAN_EXAMPLES_DEPENDS}" CACHE INTERNAL "")
+endif()
+
+if(DEFINED ${PROJECT_NAME}_DEBIAN_DOC_DEPENDS)
+    set(CPACK_DEBIAN_${COMP_DOC}_PACKAGE_DEPENDS "${${PROJECT_NAME}_DEBIAN_DOC_DEPENDS}" CACHE INTERNAL "")
+endif()
+
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+    include(CPack)
+endif()

examples/CMakeLists.txt

@@ -1,31 +1,68 @@
 # Simple examples for using hdk-sdl.
 
+include(FetchContent)
 include(GNUInstallDirs)
 
-option(HDK_SDL_INSTALL_EXAMPLES "Install hdk-sdl example binaries and assets" OFF)
+if(DEFINED HDK_CMAKE_POLICY_DIR AND EXISTS "${HDK_CMAKE_POLICY_DIR}/HDKExampleAssetsPolicy.cmake")
+	include("${HDK_CMAKE_POLICY_DIR}/HDKExampleAssetsPolicy.cmake")
+elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/HDKExampleAssetsPolicy.cmake")
+	include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/HDKExampleAssetsPolicy.cmake")
+elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake/HDKExampleAssetsPolicy.cmake")
+	include("${CMAKE_CURRENT_SOURCE_DIR}/../cmake/HDKExampleAssetsPolicy.cmake")
+else()
+	message(FATAL_ERROR "Unable to locate HDKExampleAssetsPolicy.cmake")
+endif()
 
-set(HDK_SDL_EXAMPLES_ASSETS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/assets)
-set(HDK_SDL_EXAMPLES_ASSETS_BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR}/../assets)
+if(NOT DEFINED HDK_INSTALL_EXAMPLES)
+	set(HDK_INSTALL_EXAMPLES OFF)
+endif()
+
+option(HDK_INSTALL_EXAMPLES "Install hdk-sdl example binaries and assets" ${HDK_INSTALL_EXAMPLES})
+option(HDK_EXAMPLES_FETCH_ASSETS "Fetch hdk-assets when no suitable package is found" ON)
+
+if(NOT DEFINED HDK_ASSETS_MIN_VERSION)
+	set(HDK_ASSETS_MIN_VERSION "0.0.1")
+endif()
+
+if(NOT DEFINED HDK_ASSETS_GIT_REPOSITORY)
+	set(HDK_ASSETS_GIT_REPOSITORY "https://git.ufp.institute/ufp/hdk-assets.git")
+endif()
+
+if(NOT DEFINED HDK_INSTALL_ASSETSDIR)
+	set(HDK_INSTALL_ASSETSDIR "assets")
+endif()
+
+hdk_resolve_example_assets(
+	OUT_VAR HDK_EXAMPLES_ASSETS_SOURCE_DIR
+	FETCH_OPTION ${HDK_EXAMPLES_FETCH_ASSETS}
+	MIN_VERSION ${HDK_ASSETS_MIN_VERSION}
+	GIT_REPOSITORY ${HDK_ASSETS_GIT_REPOSITORY}
+	GIT_TAG v${HDK_ASSETS_MIN_VERSION}
+	CONTEXT "hdk-sdl examples"
+)
+set(HDK_EXAMPLES_ASSETS_BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR}/../assets)
 
 add_executable(HelloRenderer2D HelloRenderer2D.cpp)
 target_link_libraries(HelloRenderer2D PRIVATE hdk-sdl)
 
 # Stage shared example assets beside the example executables in the build tree.
 add_custom_command(TARGET HelloRenderer2D POST_BUILD
-	COMMAND ${CMAKE_COMMAND} -E rm -rf ${HDK_SDL_EXAMPLES_ASSETS_BUILD_DIR}
+	COMMAND ${CMAKE_COMMAND} -E rm -rf ${HDK_EXAMPLES_ASSETS_BUILD_DIR}
 	COMMAND ${CMAKE_COMMAND} -E copy_directory
-		${HDK_SDL_EXAMPLES_ASSETS_SOURCE_DIR}
-		${HDK_SDL_EXAMPLES_ASSETS_BUILD_DIR}
+		${HDK_EXAMPLES_ASSETS_SOURCE_DIR}
+		${HDK_EXAMPLES_ASSETS_BUILD_DIR}
 	COMMENT "Staging hdk-sdl example assets"
 	VERBATIM
 )
 
-if(HDK_SDL_INSTALL_EXAMPLES)
+if(HDK_INSTALL_EXAMPLES)
 	install(TARGETS HelloRenderer2D
 		RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+		COMPONENT hdk-sdl_examples
 	)
 
-	install(DIRECTORY ${HDK_SDL_EXAMPLES_ASSETS_SOURCE_DIR}/
-		DESTINATION assets
+	install(DIRECTORY ${HDK_EXAMPLES_ASSETS_SOURCE_DIR}/
+		DESTINATION ${HDK_INSTALL_ASSETSDIR}
+		COMPONENT hdk-sdl_examples
 	)
 endif()

include/hdk/sdl/video/Window.hpp

@@ -9,6 +9,10 @@ namespace hdk::sdl {
   namespace evt {
     class EventConduit;
   }
+  /**
+   * @todo https://wiki.libsdl.org/SDL3/SDL_SetWindowFillDocument
+   *
+   */
   class Window : public hdk::grid::SharedPtrWrapper<SDL_Window> {
     public:
       friend class Renderer;