Rav1dFrameContext_frame_thread: Make pal_sz a getter

src/decode.rs

@@ -4388,12 +4388,11 @@ pub(crate) unsafe fn rav1d_decode_frame_init(
         }
 
         if frame_hdr.allow_screen_content_tools != 0 {
-            if num_sb128 != f.frame_thread.pal_sz {
+            if num_sb128 as usize != f.frame_thread.pal_sz() {
                 // TODO: Fallible allocation
                 f.frame_thread
                     .pal
                     .resize_with(num_sb128 as usize * 16 * 16, Default::default);
-                f.frame_thread.pal_sz = num_sb128;
             }
 
             let pal_idx_sz = num_sb128 * size_mul[1] as c_int;
@@ -4413,7 +4412,6 @@ pub(crate) unsafe fn rav1d_decode_frame_init(
             let _ = mem::take(&mut f.frame_thread.pal);
             rav1d_freep_aligned(&mut f.frame_thread.pal_idx as *mut *mut u8 as *mut c_void);
             f.frame_thread.pal_idx_sz = 0;
-            f.frame_thread.pal_sz = f.frame_thread.pal_idx_sz;
         }
     }
 

src/internal.rs

@@ -413,13 +413,18 @@ pub struct Rav1dFrameContext_frame_thread {
     // iterated over inside tile state
     pub pal_idx: *mut u8,
     pub cf: *mut DynCoef,
-    pub pal_sz: c_int,
     pub pal_idx_sz: c_int,
     pub cf_sz: c_int,
     // start offsets per tile
     pub tile_start_off: *mut c_int,
 }
 
+impl Rav1dFrameContext_frame_thread {
+    pub fn pal_sz(&self) -> usize {
+        self.pal.len() / (16 * 16)
+    }
+}
+
 /// loopfilter
 #[repr(C)]
 pub struct Rav1dFrameContext_lf {