diff options
Diffstat (limited to 'chromium/third_party/openmax_dl/dl/sp/api/armSP.h')
| -rw-r--r-- | chromium/third_party/openmax_dl/dl/sp/api/armSP.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/chromium/third_party/openmax_dl/dl/sp/api/armSP.h b/chromium/third_party/openmax_dl/dl/sp/api/armSP.h index 4972f09c554..cf17ec5cbe3 100644 --- a/chromium/third_party/openmax_dl/dl/sp/api/armSP.h +++ b/chromium/third_party/openmax_dl/dl/sp/api/armSP.h @@ -29,6 +29,8 @@ #ifndef _armSP_H_ #define _armSP_H_ +#include <stdint.h> + #include "dl/api/omxtypes.h" #ifdef __cplusplus @@ -88,6 +90,42 @@ typedef struct ARMsFFTSpec_FC32_Tag OMX_FC32* pBuf; } ARMsFFTSpec_FC32; +/* + * Compute log2(x), where x must be a power of 2. + */ +static inline OMX_U32 fastlog2(long x) { + OMX_U32 out; + asm("clz %0,%1\n\t" + "sub %0, %0, #63\n\t" + "neg %0, %0\n\t" + : "=r"(out) + : "r"(x) + :); + return out; +} + +/* + * Validate args. All pointers must be non-NULL; the source and + * destination pointers must be aligned on a 32-byte boundary; the + * FFT spec must have non-NULL pointers; and the FFT size must be + * within range. + */ +static inline int validateParametersFC32(const void* pSrc, + const void* pDst, + const ARMsFFTSpec_FC32* pFFTSpec) { + return pSrc && pDst && pFFTSpec && !(((uintptr_t)pSrc) & 31) && + !(((uintptr_t)pDst) & 31) && pFFTSpec->pTwiddle && pFFTSpec->pBuf && + (pFFTSpec->N >= 2) && (pFFTSpec->N <= (1 << TWIDDLE_TABLE_ORDER)); +} + +static inline int validateParametersF32(const void* pSrc, + const void* pDst, + const ARMsFFTSpec_R_FC32* pFFTSpec) { + return pSrc && pDst && pFFTSpec && !(((uintptr_t)pSrc) & 31) && + !(((uintptr_t)pDst) & 31) && pFFTSpec->pTwiddle && pFFTSpec->pBuf && + (pFFTSpec->N >= 2) && (pFFTSpec->N <= (1 << TWIDDLE_TABLE_ORDER)); +} + #ifdef __cplusplus } #endif |