Update build script

CMakeLists.txt

@@ -212,6 +212,10 @@ find_package(JPEG REQUIRED) # -DJPEG_LIBRARY=...
 include_directories(${JPEG_INCLUDE_DIRS})
 link_libraries(${JPEG_LIBRARIES})
 
+find_package(Libavif REQUIRED)
+link_libraries(libavif::libavif)
+include_directories(${LIBAVIF_INCLUDE_DIR})
+
 if(ENABLE_CELX)
   add_definitions(-DCELX)
 

cmake/FindLibavif.cmake

@@ -0,0 +1,59 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#.rst:
+# FindLibavif
+# --------
+#
+# Find the avif headers and libraries.
+#
+# This module reports information about the avif
+# installation in several variables.  General variables::
+#
+#   LIBAVIF_FOUND - true if the avif headers and libraries were found
+#   LIBAVIF_INCLUDE_DIRS - the directory containing the avif headers
+#   LIBAVIF_LIBRARIES - avif libraries to be linked
+#
+# The following cache variables may also be set::
+#
+#   LIBAVIF_INCLUDE_DIR - the directory containing the avif headers
+#   LIBAVIF_LIBRARY - the avif library (if any)
+
+# Find include directory
+
+# TODO: use pkgconfig
+
+find_path(LIBAVIF_INCLUDE_DIR
+          NAMES avif/avif.h
+          HINTS LIBAVIF_DIR
+          DOC "avif headers")
+mark_as_advanced(LIBAVIF_INCLUDE_DIR)
+
+find_library(LIBAVIF_LIBRARY
+             NAMES avif
+             HINTS LIBAVIF_DIR
+             DOC "avif libraries")
+mark_as_advanced(LIBAVIF_LIBRARY)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Libavif
+                                  FOUND_VAR LIBAVIF_FOUND
+                                  REQUIRED_VARS LIBAVIF_INCLUDE_DIR LIBAVIF_LIBRARY
+                                  FAIL_MESSAGE "Failed to find avif")
+
+if(LIBAVIF_FOUND)
+  set(LIBAVIF_INCLUDE_DIRS "${LIBAVIF_INCLUDE_DIR}")
+  if(LIBAVIF_LIBRARY)
+    set(LIBAVIF_LIBRARIES "${LIBAVIF_LIBRARY}")
+  else()
+    unset(LIBAVIF_LIBRARIES)
+  endif()
+
+  if(NOT TARGET libavif::libavif)
+    add_library(libavif::libavif UNKNOWN IMPORTED)
+    set_target_properties(libavif::libavif PROPERTIES
+      INTERFACE_INCLUDE_DIRECTORIES "${LIBAVIF_INCLUDE_DIRS}")
+    set_target_properties(libavif::libavif PROPERTIES
+      IMPORTED_LOCATION "${LIBAVIF_LIBRARY}")
+  endif()
+endif()

src/celimage/CMakeLists.txt

@@ -1,4 +1,5 @@
 set(CELIMAGE_SOURCES
+  avif.cpp
   bmp.cpp
   dds.cpp
   dds_decompress.cpp