1 files changed, 143 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm_neon_asm_gcc/h264bsdFillRow7.S b/media/libstagefright/codecs/on2/h264dec/source/arm_neon_asm_gcc/h264bsdFillRow7.S
new file mode 100644
index 0000000..6955b9a
--- /dev/null
+++ b/media/libstagefright/codecs/on2/h264dec/source/arm_neon_asm_gcc/h264bsdFillRow7.S
@@ -0,0 +1,143 @@
+@
+@ 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 ref     r0
+#define fill    r1
+#define left    r2
+#define tmp2    r2
+#define center  r3
+#define right   r4
+#define tmp1    r5
+
+/* -- NEON registers -- */
+
+#define qTmp0     Q0.U8
+#define qTmp1     Q1.U8
+#define dTmp0     D0.U8
+#define dTmp1     D1.U8
+#define dTmp2     D2.U8
+#define dTmp3     D3.U8
+
+/*
+void h264bsdFillRow7(const u8 * ref, u8 * fill, i32 left, i32 center,
+                     i32 right);
+*/
+
+function h264bsdFillRow7, export=1
+
+        PUSH     {r4-r6,lr}
+        CMP      left, #0
+        LDR      right, [sp,#0x10]
+        BEQ      switch_center
+        LDRB     tmp1, [ref,#0]
+
+loop_left:
+        SUBS     left, left, #1
+        STRB     tmp1, [fill], #1
+        BNE      loop_left
+
+switch_center:
+        ASR      tmp2,center,#2
+        CMP      tmp2,#9
+        ADDCC    pc,pc,tmp2,LSL #2
+        B        loop_center
+        B        loop_center
+        B        case_1
+        B        case_2
+        B        case_3
+        B        case_4
+        B        case_5
+        B        case_6
+        B        case_7
+        B        case_8
+
+case_8:
+        VLD1    {qTmp0, qTmp1}, [ref]!
+        SUB     center, center, #32
+        VST1    {qTmp0}, [fill]!
+        VST1    {qTmp1}, [fill]!
+        B       loop_center
+case_7:
+        VLD1    {dTmp0,dTmp1,dTmp2}, [ref]!
+        SUB     center, center, #28
+        LDR     tmp2, [ref], #4
+        VST1    {dTmp0,dTmp1,dTmp2}, [fill]!
+        STR     tmp2, [fill],#4
+        B       loop_center
+case_6:
+        VLD1    {dTmp0,dTmp1,dTmp2}, [ref]!
+        SUB     center, center, #24
+        VST1    {dTmp0,dTmp1,dTmp2}, [fill]!
+        B       loop_center
+case_5:
+        VLD1    {qTmp0}, [ref]!
+        SUB     center, center, #20
+        LDR     tmp2, [ref], #4
+        VST1    {qTmp0}, [fill]!
+        STR     tmp2, [fill],#4
+        B       loop_center
+case_4:
+        VLD1    {qTmp0}, [ref]!
+        SUB     center, center, #16
+        VST1    {qTmp0}, [fill]!
+        B       loop_center
+case_3:
+        VLD1    {dTmp0}, [ref]!
+        SUB     center, center, #12
+        LDR     tmp2, [ref], #4
+        VST1    dTmp0, [fill]!
+        STR     tmp2, [fill],#4
+        B       loop_center
+case_2:
+        LDR      tmp2, [ref],#4
+        SUB      center, center, #4
+        STR      tmp2, [fill], #4
+case_1:
+        LDR      tmp2, [ref],#4
+        SUB      center, center, #4
+        STR      tmp2, [fill], #4
+
+loop_center:
+        CMP      center, #0
+        BEQ      jump
+        LDRB     tmp2, [ref], #1
+        SUB      center, center, #1
+        STRB     tmp2, [fill], #1
+        BNE      loop_center
+jump:
+        CMP      right,#0
+        POPEQ    {r4-r6,pc}
+        LDRB     tmp2, [ref,#-1]
+
+loop_right:
+        STRB     tmp2, [fill], #1
+        SUBS     right, right, #1
+        BNE      loop_right
+
+        POP      {r4-r6,pc}
+
+endfunction
+
+