-void scale2x_tiles8(void *dst, const void *src, int w8, int h) {}
+void scale2x_tiles8(void *dst, const void *src, int w8, int h)
+{
+ uint16_t* d = (uint16_t*)dst;
+ const uint16_t* s = (const uint16_t*)src;
+
+ while ( h-- )
+ {
+ uint16_t* d_save = d;
+ const uint16_t* s_save = s;
+ int w = w8;
+
+ while ( w-- )
+ {
+ d[ 0 ] = *s;
+ d[ 1 ] = *s;
+ d[ 1024 ] = *s;
+ d[ 1025 ] = *s;
+ d += 2; s++;
+
+ d[ 0 ] = *s;
+ d[ 1 ] = *s;
+ d[ 1024 ] = *s;
+ d[ 1025 ] = *s;
+ d += 2; s++;
+
+ d[ 0 ] = *s;
+ d[ 1 ] = *s;
+ d[ 1024 ] = *s;
+ d[ 1025 ] = *s;
+ d += 2; s++;
+
+ d[ 0 ] = *s;
+ d[ 1 ] = *s;
+ d[ 1024 ] = *s;
+ d[ 1025 ] = *s;
+ d += 2; s++;
+
+ d[ 0 ] = *s;
+ d[ 1 ] = *s;
+ d[ 1024 ] = *s;
+ d[ 1025 ] = *s;
+ d += 2; s++;
+
+ d[ 0 ] = *s;
+ d[ 1 ] = *s;
+ d[ 1024 ] = *s;
+ d[ 1025 ] = *s;
+ d += 2; s++;
+
+ d[ 0 ] = *s;
+ d[ 1 ] = *s;
+ d[ 1024 ] = *s;
+ d[ 1025 ] = *s;
+ d += 2; s++;
+
+ d[ 0 ] = *s;
+ d[ 1 ] = *s;
+ d[ 1024 ] = *s;
+ d[ 1025 ] = *s;
+ d += 2; s++;
+ }
+
+ d = d_save + 2048;
+ s = s_save + 1024; /* or 512? */
+ }
+}