Major optimization of atrac3 codec for Coldfire targets. Moving several number cruncher arrays to IRAM. Decoder is sped up by +50% on h300, decoder now finally is realtime on Coldfire targets as well.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24677 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 6 insertions, 4 deletions

diff --git a/apps/codecs/libatrac/atrac3.h b/apps/codecs/libatrac/atrac3.h
index a817db2b55..5bed9c60bf 100644
--- a/apps/codecs/libatrac/atrac3.h
+++ b/apps/codecs/libatrac/atrac3.h
@@ -3,10 +3,12 @@
 
 #if (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024) || (CONFIG_CPU == MCF5250)
 /* PP5022/24 and MCF5250 have larger IRAM */
-#define IBSS_ATTR_LARGE_IRAM IBSS_ATTR
+#define IBSS_ATTR_LARGE_IRAM  IBSS_ATTR
+#define ICODE_ATTR_LARGE_IRAM ICODE_ATTR
 #else
 /* other CPUs IRAM is not large enough */
 #define IBSS_ATTR_LARGE_IRAM
+#define ICODE_ATTR_LARGE_IRAM
 #endif
 
 /* These structures are needed to store the parsed gain control data. */
@@ -30,12 +32,12 @@ typedef struct {
     int               bandsCoded;
     int               numComponents;
     tonal_component   components[64];
-    int32_t           prevFrame[1024];
+    int32_t           *prevFrame;
     int               gcBlkSwitch;
     gain_block        gainBlock[2];
 
-    int32_t           spectrum[1024] __attribute__((aligned(16)));
-    int32_t           IMDCT_buf[1024] __attribute__((aligned(16)));
+    int32_t           *spectrum;
+    int32_t           *IMDCT_buf;
 
     int32_t           delayBuf1[46]; ///<qmf delay buffers
     int32_t           delayBuf2[46];