1 files changed, 68 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm_neon_asm_gcc/h264bsdClearMbLayer.S b/media/libstagefright/codecs/on2/h264dec/source/arm_neon_asm_gcc/h264bsdClearMbLayer.S
new file mode 100644
index 0000000..c8a940e
--- /dev/null
+++ b/media/libstagefright/codecs/on2/h264dec/source/arm_neon_asm_gcc/h264bsdClearMbLayer.S
@@ -0,0 +1,68 @@
+@
+@ Copyright (C) 2009 The Android Open Source Project
+@
+@ Licensed under the Apache License, Version 2.0 (the "License");
+@ you may not use this file except in compliance with the License.
+@ You may obtain a copy of the License at
+@
+@      http://www.apache.org/licenses/LICENSE-2.0
+@
+@ Unless required by applicable law or agreed to in writing, software
+@ distributed under the License is distributed on an "AS IS" BASIS,
+@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@ See the License for the specific language governing permissions and
+@ limitations under the License.
+@
+
+#include "asm_common.S"
+
+    preserve8
+
+    .fpu neon
+    .text
+
+/* Input / output registers */
+#define pMbLayer    r0
+#define size        r1
+#define pTmp        r2
+#define step        r3
+
+/* -- NEON registers -- */
+
+#define qZero   Q0.U8
+
+/*------------------------------------------------------------------------------
+
+    Function: h264bsdClearMbLayer
+
+        Functional description:
+
+        Inputs:
+
+        Outputs:
+
+        Returns:
+
+------------------------------------------------------------------------------*/
+
+function h264bsdClearMbLayer, export=1
+
+    VMOV    qZero, #0
+    ADD     pTmp, pMbLayer, #16
+    MOV     step, #32
+    SUBS    size, size, #64
+
+loop:
+    VST1    {qZero}, [pMbLayer], step
+    SUBS    size, size, #64
+    VST1    {qZero}, [pTmp], step
+    VST1    {qZero}, [pMbLayer], step
+    VST1    {qZero}, [pTmp], step
+    BCS     loop
+
+    BX      lr
+
+endfunction
+
+
+