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@
@ 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
.arm
.text
/* Input / output registers */
#define pStrmData r0
#define numBits r1
#define readBits r2
#define strmBuffSize r3
#define pStrmBuffStart r1
#define pStrmCurrPos r2
#define bitPosInWord r1
/* Input / output registers */
/*------------------------------------------------------------------------------
Function: h264bsdFlushBits
Functional description:
Inputs:
Outputs:
Returns:
------------------------------------------------------------------------------*/
function h264bsdFlushBits, export=1
LDR readBits, [pStrmData, #0x10]
LDR strmBuffSize, [pStrmData, #0xC]
ADD readBits, readBits, numBits
AND bitPosInWord, readBits, #7
STR readBits, [pStrmData, #0x10]
STR bitPosInWord, [pStrmData, #0x8]
LDR pStrmBuffStart, [pStrmData, #0x0]
CMP readBits, strmBuffSize, LSL #3
BHI end_of_stream
ADD pStrmCurrPos, pStrmBuffStart, readBits, LSR #3
STR pStrmCurrPos, [pStrmData, #0x4]
MOV r0, #0
BX lr
end_of_stream:
MVN r0, #0
BX lr
endfunction
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