| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * 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. |
| * ------------------------------------------------------------------- |
| */ |
| |
| #ifndef _SAD_HALFPEL_INLINE_H_ |
| #define _SAD_HALFPEL_INLINE_H_ |
| |
| #ifdef __cplusplus |
| extern "C" |
| { |
| #endif |
| |
| /* Intentionally not using the gcc asm version, since it is |
| * slightly slower than the plain C version on modern GCC versions. */ |
| #if !defined(__CC_ARM) /* Generic C version */ |
| |
| __inline int32 INTERP1_SUB_SAD(int32 sad, int32 tmp, int32 tmp2) |
| { |
| tmp = (tmp2 >> 1) - tmp; |
| if (tmp > 0) sad += tmp; |
| else sad -= tmp; |
| |
| return sad; |
| } |
| |
| __inline int32 INTERP2_SUB_SAD(int32 sad, int32 tmp, int32 tmp2) |
| { |
| tmp = (tmp >> 2) - tmp2; |
| if (tmp > 0) sad += tmp; |
| else sad -= tmp; |
| |
| return sad; |
| } |
| |
| #elif defined(__CC_ARM) /* only work with arm v5 */ |
| |
| __inline int32 INTERP1_SUB_SAD(int32 sad, int32 tmp, int32 tmp2) |
| { |
| __asm |
| { |
| rsbs tmp, tmp, tmp2, asr #1 ; |
| rsbmi tmp, tmp, #0 ; |
| add sad, sad, tmp ; |
| } |
| |
| return sad; |
| } |
| |
| __inline int32 INTERP2_SUB_SAD(int32 sad, int32 tmp, int32 tmp2) |
| { |
| __asm |
| { |
| rsbs tmp, tmp2, tmp, asr #2 ; |
| rsbmi tmp, tmp, #0 ; |
| add sad, sad, tmp ; |
| } |
| |
| return sad; |
| } |
| |
| #elif defined(__GNUC__) && defined(__arm__) /* ARM GNU COMPILER */ |
| |
| __inline int32 INTERP1_SUB_SAD(int32 sad, int32 tmp, int32 tmp2) |
| { |
| __asm__ volatile( |
| "rsbs %1, %1, %2, asr #1\n\t" |
| "rsbmi %1, %1, #0\n\t" |
| "add %0, %0, %1" |
| : "+r"(sad), "+r"(tmp) |
| : "r"(tmp2) |
| ); |
| |
| return sad; |
| } |
| |
| __inline int32 INTERP2_SUB_SAD(int32 sad, int32 tmp, int32 tmp2) |
| { |
| __asm__ volatile( |
| "rsbs %1, %2, %1, asr #2\n\t" |
| "rsbmi %1, %1, #0\n\t" |
| "add %0, %0, %1" |
| : "+r"(sad), "+r"(tmp) |
| : "r"(tmp2) |
| ); |
| |
| return sad; |
| } |
| |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif //_SAD_HALFPEL_INLINE_H_ |
| |
