Coldfire targets: Restore EMAC status after using the EMAC for bitmap resizing. Fixes FS #10412. The tone and EQ filter calculation relies on the proper EMAC mode. EQ filters were not affected because they're set from a different thread, hence FS #10412 only affected the iAudios (coldfire + albumart + software tone controls).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24164 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 6 insertions, 0 deletions

diff --git a/apps/recorder/resize.c b/apps/recorder/resize.c
index 49b8980ceb..0f227f8b09 100644
--- a/apps/recorder/resize.c
+++ b/apps/recorder/resize.c
@@ -921,6 +921,7 @@ int resize_on_load(struct bitmap *bm, bool dither, struct dim *src,
     }
 #endif
 #ifdef CPU_COLDFIRE
+    unsigned old_macsr = coldfire_get_macsr();
     coldfire_set_macsr(EMAC_UNSIGNED);
 #endif
 #ifdef HAVE_UPSCALER
@@ -951,6 +952,11 @@ int resize_on_load(struct bitmap *bm, bool dither, struct dim *src,
         ret = scale_v_linear(rset, &ctx);
     }
 #endif
+#ifdef CPU_COLDFIRE
+    /* Restore emac status; other modules like tone control filter
+     * calculation may rely on it. */
+    coldfire_set_macsr(old_macsr);
+#endif
 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
     cpu_boost(false);
 #endif