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| author | Nils Wallménius <nils@rockbox.org> | 2010-09-29 13:20:03 +0000 |
|---|---|---|
| committer | Nils Wallménius <nils@rockbox.org> | 2010-09-29 13:20:03 +0000 |
| commit | 5b2d7e23a09cede4a3a1ad8db86e60cd42494aa4 (patch) | |
| tree | 377231caad4e1a3c4447b7838a73c9a6bec46c7e | |
| parent | 918e895c12a25365b15f9df82c2aa33bfb74436a (diff) | |
| download | rockbox-5b2d7e23a09cede4a3a1ad8db86e60cd42494aa4.tar.gz rockbox-5b2d7e23a09cede4a3a1ad8db86e60cd42494aa4.zip | |
ARMv6 supports unaligned memory accesses and they are enabled on our only ARMv6 target so we might as well use them. Speeds up decoding of a flac8 file by 3.5%.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28183 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | apps/codecs/lib/ffmpeg_intreadwrite.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/apps/codecs/lib/ffmpeg_intreadwrite.h b/apps/codecs/lib/ffmpeg_intreadwrite.h index ca718106d1..24f03292e8 100644 --- a/apps/codecs/lib/ffmpeg_intreadwrite.h +++ b/apps/codecs/lib/ffmpeg_intreadwrite.h | |||
| @@ -186,9 +186,9 @@ union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias; | |||
| 186 | #endif | 186 | #endif |
| 187 | 187 | ||
| 188 | #ifndef AV_RB32 | 188 | #ifndef AV_RB32 |
| 189 | /* Coldfire cpu's support unaligned long reads */ | 189 | /* Coldfire and ARMv6 and above support unaligned long reads */ |
| 190 | #ifdef CPU_COLDFIRE | 190 | #if defined CPU_COLDFIRE || (defined CPU_ARM && ARM_ARCH >= 6) |
| 191 | #define AV_RB32(x) (*(const uint32_t*)(x)) | 191 | #define AV_RB32(x) (htobe32(*(const uint32_t*)(x))) |
| 192 | #else | 192 | #else |
| 193 | # define AV_RB32(x) \ | 193 | # define AV_RB32(x) \ |
| 194 | ((((const uint8_t*)(x))[0] << 24) | \ | 194 | ((((const uint8_t*)(x))[0] << 24) | \ |