Support interface only libraries (#19855)

* Added RenderTexture::saveToFileAsNonPMA() to save images without PMA.
Set the PMA parameter to true when calling initWithRawData() inside RenderTexture::newImage(), since textures are PMA.
Renamed Image::premultipliedAlpha() to Image::premultiplyAlpha() to better reflect it's action, and made it public.
Added Image::reversePremultipliedAlpha() to allow the reversing of the PMA.
Updated CCImage-ios.mm to set the correct bitmapInfo for PMA and non-PMA images before saving a file.
Updated RenderTextureTest::RenderTextureSave() to cater for non-PMA file saving.

* [CCImage-ios.mm] Fixed indentation.

* Added support for interface-only libraries being linked to application via target_link_libraries.  Certain library properties cannot be accessed if it is an interface only library, so we need to check if they are valid library types before accessing those properties.

* Fixed formatting.

Author: rh101

cmake/Modules/CocosBuildHelpers.cmake

@@ -60,17 +60,23 @@ function(search_depend_libs_recursive cocos_target all_depends_out)
     set(targets_prepare_search ${cocos_target})
     while(true)
         foreach(tmp_target ${targets_prepare_search})
-            get_target_property(tmp_depend_libs ${tmp_target} LINK_LIBRARIES)
-            list(REMOVE_ITEM targets_prepare_search ${tmp_target})
-            list(APPEND tmp_depend_libs ${tmp_target})
-            foreach(depend_lib ${tmp_depend_libs})
-                if(TARGET ${depend_lib})
-                    list(APPEND all_depends_inner ${depend_lib})
-                    if(NOT (depend_lib STREQUAL tmp_target))
-                        list(APPEND targets_prepare_search ${depend_lib})
+            get_target_property(target_type ${tmp_target} TYPE)
+            if(${target_type} STREQUAL "SHARED_LIBRARY" OR ${target_type} STREQUAL "STATIC_LIBRARY" OR ${target_type} STREQUAL "MODULE_LIBRARY" OR ${target_type} STREQUAL "EXECUTABLE")
+                #interface-only libraries do not support certain properties such as LINK_LIBRARIES
+                get_target_property(tmp_depend_libs ${tmp_target} LINK_LIBRARIES)
+                list(REMOVE_ITEM targets_prepare_search ${tmp_target})
+                list(APPEND tmp_depend_libs ${tmp_target})
+                foreach(depend_lib ${tmp_depend_libs})
+                    if(TARGET ${depend_lib})
+                        list(APPEND all_depends_inner ${depend_lib})
+                        if(NOT (depend_lib STREQUAL tmp_target))
+                            list(APPEND targets_prepare_search ${depend_lib})
+                        endif()
                     endif()
-                endif()
-            endforeach()
+                endforeach()
+            else()
+                list(REMOVE_ITEM targets_prepare_search ${tmp_target})
+            endif()
         endforeach()
         list(LENGTH targets_prepare_search targets_prepare_search_size)
         if(targets_prepare_search_size LESS 1)
@@ -88,10 +94,14 @@ function(get_target_depends_ext_dlls cocos_target all_depend_dlls_out)
     search_depend_libs_recursive(${cocos_target} depend_libs)
     foreach(depend_lib ${depend_libs})
         if(TARGET ${depend_lib})
-            get_target_property(found_shared_lib ${depend_lib} IMPORTED_IMPLIB)
-            if(found_shared_lib)
-                get_target_property(tmp_dlls ${depend_lib} IMPORTED_LOCATION)
-                list(APPEND all_depend_ext_dlls ${tmp_dlls})
+            get_target_property(target_type ${depend_lib} TYPE)
+            if(${target_type} STREQUAL "SHARED_LIBRARY" OR ${target_type} STREQUAL "STATIC_LIBRARY" OR ${target_type} STREQUAL "MODULE_LIBRARY" OR ${target_type} STREQUAL "EXECUTABLE")
+                #interface-only libraries do not support certain properties such as IMPORTED_IMPLIB
+                get_target_property(found_shared_lib ${depend_lib} IMPORTED_IMPLIB)
+                if(found_shared_lib)
+                    get_target_property(tmp_dlls ${depend_lib} IMPORTED_LOCATION)
+                    list(APPEND all_depend_ext_dlls ${tmp_dlls})
+                endif()
             endif()
         endif()
     endforeach()