meson: detect 'offscale' support in edje_cc. Closes T6770

data/test_offscale.edc

@@ -0,0 +1,11 @@
+collections {
+  group { name: "offscale_test";
+    parts {
+      part { name: "offscale_part";
+        description { state: "default" 0.0;
+          offscale;
+        }
+      }
+    }
+  }
+}

data/themes/default.edc

@@ -697,7 +697,9 @@ collections {
                rel.to: "sendfile_request_bg";
                rel1.offset: 4 4;
                rel2.offset: -5 -5;
+#if HAS_OFFSCALE
                offscale;
+#endif
             }
             description { state: "on" 0.0;
                inherit: "default" 0.0;
@@ -767,7 +769,9 @@ collections {
                rel.to: "terminology.sendfile.progress";
                rel1.offset: -4 -4;
                rel2.offset: 4 4;
+#if HAS_OFFSCALE
                offscale;
+#endif
             }
          }
          part { name: "terminology.sendfile.progress"; type: SWALLOW;
@@ -779,7 +783,9 @@ collections {
                rel2.relative: 1.0 0.0;
                rel2.offset: -5 -5;
                align: 0.5 1.0;
+#if HAS_OFFSCALE
                offscale;
+#endif
             }
             description { state: "on" 0.0;
                inherit: "default" 0.0;

data/themes/meson.build

@@ -1,4 +1,5 @@
 command = [edje_cc,
+           edje_offscale,
            '-id', join_paths(meson.source_root(), 'data', 'themes', 'images'),
            '-fd', join_paths(meson.source_root(), 'data', 'fonts'),
            '-sd', join_paths(meson.source_root(), 'data', 'themes', 'sounds'),

meson.build

@@ -97,6 +97,15 @@ if edje_cc == ''
   edje_cc = edje_cc_path
 endif
 
+res = run_command(edje_cc, meson.current_source_dir() + '/data/test_offscale.edc')
+if res.returncode() == 0
+  message('edje_cc has support for offscale')
+  edje_offscale='-DHAS_OFFSCALE=1'
+else
+  message('edje_cc does not have support for offscale')
+  edje_offscale='-DHAS_OFFSCALE=0'
+endif
+
 fuzzing = get_option('fuzzing')
 
 if fuzzing