向量与常量相乘。

函数接口声明如下：

有缩放的浮点数的操作：
HmppResult HMPPS_MulC_32f(const float *src, float val, float *dst, int32_t len);

HmppResult HMPPS_MulC_64f(const double *src, double val, double*dst, int32_t len);

HmppResult HMPPS_MulC_32fc(const Hmpp32fc *src, Hmpp32fc val, Hmpp32fc *dst, int32_t len);

HmppResult HMPPS_MulC_64fc(const Hmpp64fc *src, Hmpp64fc val, Hmpp64fc *dst, int32_t len);

HmppResult HMPPS_MulC_Low_32f16s(const float *src, float val, int16_t *dst, int32_t len);
有缩放的整型数的操作：
HmppResult HMPPS_MulC_8u_S(const uint8_t *src, uint8_t val, uint8_t *dst, int32_t len, double scale);

HmppResult HMPPS_MulC_16u_S(const uint16_t *src, uint16_t val, uint16_t *dst, int32_t len, double scale);

HmppResult HMPPS_MulC_16s_S(const int16_t *src, int16_t val, int16_t *dst, int32_t len, double scale);

HmppResult HMPPS_MulC_32s_S(const int32_t *src, int32_t val, int32_t *dst, int32_t len, double scale);

HmppResult HMPPS_MulC_32f16s_S(const float *src, float val, int16_t *dst, int32_t len, double scale);

HmppResult HMPPS_MulC_16sc_S(const Hmpp16sc *src, Hmpp16sc val, Hmpp16sc *dst, int32_t len, double scale);

HmppResult HMPPS_MulC_32sc_S(const Hmpp32sc *src, Hmpp32sc val, Hmpp32sc *dst, int32_t len, double scale);
整型数的原址操作：
HmppResult HMPPS_MulC_8u_IS(uint8_t val, uint8_t *srcDst, int32_t len, double scale);

HmppResult HMPPS_MulC_16u_IS(uint16_t val, uint16_t *srcDst, int32_t len, double scale);
浮点数的原址操作：
HmppResult HMPPS_MulC_16s_I(int16_t val, int16_t *srcDst, int32_t len);

HmppResult HMPPS_MulC_32f_I(float val, float *srcDst, int32_t len);

HmppResult HMPPS_MulC_64f_I(double val, double *srcDst, int32_t len);

HmppResult HMPPS_MulC_32fc_I(Hmpp32fc val, Hmpp32fc *srcDst, int32_t len);

HmppResult HMPPS_MulC_64fc_I(Hmpp64fc val, Hmpp64fc *srcDst, int32_t len);
有缩放的整型数原址操作：
HmppResult HMPPS_MulC_16s_IS(int16_t val, int16_t *srcDst, int32_t len, double scale);

HmppResult HMPPS_MulC_32s_IS(int32_t val, int32_t *srcDst, int32_t len, double scale);

HmppResult HMPPS_MulC_64s_IS(int64_t val, int64_t *srcDst, int32_t len, double scale);

HmppResult HMPPS_MulC_64f64s_IS(double val, int64_t *srcDst, int32_t len, double scale);

HmppResult HMPPS_MulC_16sc_IS(Hmpp16sc val, Hmpp16sc *srcDst, int32_t len, double scale);

HmppResult HMPPS_MulC_32sc_IS(Hmpp32sc val, Hmpp32sc *srcDst, int32_t len, double scale);

参数

参数名	描述	取值范围	输入/输出
src	指向源向量的指针。	非空	输入
val	常量。	不限，视类型而定	输入
dst	指向目的向量的指针。	非空	输出
srcDst	指向原址操作向量的指针。	非空	输入/输出
len	向量长度。	(0, INT_MAX]	输入
scale	缩放因数。	(0, inf)且为2ⁿ	输入

返回值

成功：返回HMPP_STS_NO_ERR。
失败：返回错误码。

错误码

错误码	描述
HMPP_STS_NULL_PTR_ERR	入参src、dst、srcDst中存在空指针。
HMPP_STS_SIZE_ERR	len小于或等于0。
HMPP_STS_SCALE_ERR	scale不在(0,INF)范围内或输入为nan。

示例

#define BUFFER_SIZE_T 10

void MulCExample(void)
{
    uint8_t srcDst[BUFFER_SIZE_T] = {255, 0, 254, 0, 253, 1, 252, 2, 251, 3};
    uint8_t val = 54;
    HmppResult result = HMPPS_MulC_8u_IS(val, srcDst, BUFFER_SIZE_T, 8.0);
    printf("result = %d\n", result);
    if (result != HMPP_STS_NO_ERR) {
        return;
    }
    printf("srcDst =");
    for (int i = 0; i < BUFFER_SIZE_T; i++) {
        printf(" %d", srcDst[i]);
    }
    printf("\n");
}

运行结果：

result = 0
srcDst = 255 0 255 0 255 7 255 14 255 20