--- title: Copy description: "该类接口将源图像缓冲区的像素值复制到目标图像缓冲区中。" url: https://www.hikunpeng.com/document/detail/zh/kunpengboostkithistory/240RC1/accel/kunpengaccel_hmpp_06_0184.html sourcePath: /source/zh/kunpengboostkithistory/240RC1/accel/kunpengaccel_hmpp_06_0184.html indexId: 794c53d64919098f59b72c1fe4e12b44fea2ac7221083694f26f1b6a9f0075d477 --- # Copy 该类接口将源图像缓冲区的像素值复制到目标图像缓冲区中。 函数接口声明如下： - 复制所有颜色通道的所有像素： HmppResult HMPPI_Copy_8u_C1R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C1R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C1R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C1R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C1R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_C3R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C3R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C3R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C3R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C3R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_C4R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C4R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C4R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C4R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C4R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_AC4R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_AC4R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_AC4R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_AC4R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_AC4R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_C3AC4R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C3AC4R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C3AC4R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C3AC4R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C3AC4R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_AC4C3R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_AC4C3R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_AC4C3R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_AC4C3R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_AC4C3R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); - 复制被蒙版标记的各通道的像素： HmppResult HMPPI_Copy_8u_C1MR(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_16u_C1MR(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_16s_C1MR(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_32s_C1MR(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_32f_C1MR(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_8u_C3MR(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_16u_C3MR(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_16s_C3MR(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_32s_C3MR(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_32f_C3MR(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_8u_C4MR(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_16u_C4MR(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_16s_C4MR(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_32s_C4MR(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_32f_C4MR(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_8u_AC4MR(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_16u_AC4MR(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_16s_AC4MR(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_32s_AC4MR(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); HmppResult HMPPI_Copy_32f_AC4MR(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize, const uint8_t *mask, int32_t maskStep); - 复制多通道图像中的选定通道的像素： HmppResult HMPPI_Copy_8u_C3CR(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C3CR(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C3CR(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C3CR(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C3CR(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_C4CR(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C4CR(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C4CR(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C4CR(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C4CR(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); - 复制所选通道的像素到单通道图像： HmppResult HMPPI_Copy_8u_C3C1R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C3C1R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C3C1R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C3C1R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C3C1R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_C4C1R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C4C1R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C4C1R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C4C1R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C4C1R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); - 复制单通道图像的像素到多通道图像： HmppResult HMPPI_Copy_8u_C1C3R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C1C3R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C1C3R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C1C3R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C1C3R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_C1C4R(const uint8_t *src, int32_t srcStep, uint8_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C1C4R(const uint16_t *src, int32_t srcStep, uint16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C1C4R(const int16_t *src, int32_t srcStep, int16_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C1C4R(const int32_t *src, int32_t srcStep, int32_t *dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C1C4R(const float *src, int32_t srcStep, float *dst, int32_t dstStep, HmppiSize roiSize); - 分割多通道图像为多个单独的图像： HmppResult HMPPI_Copy_8u_C3P3R(const uint8_t *src, int32_t srcStep, uint8_t * const dst[3], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C3P3R(const uint16_t *src, int32_t srcStep, uint16_t * const dst[3], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C3P3R(const int16_t *src, int32_t srcStep, int16_t * const dst[3], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C3P3R(const int32_t *src, int32_t srcStep, int32_t * const dst[3], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C3P3R(const float *src, int32_t srcStep, float * const dst[3], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_C4P4R(const uint8_t *src, int32_t srcStep, uint8_t * const dst[4], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_C4P4R(const uint16_t *src, int32_t srcStep, uint16_t * const dst[4], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_C4P4R(const int16_t *src, int32_t srcStep, int16_t * const dst[4], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_C4P4R(const int32_t *src, int32_t srcStep, int32_t * const dst[4], int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_C4P4R(const float *src, int32_t srcStep, float * const dst[4], int32_t dstStep, HmppiSize roiSize); - 合成多个单独的图像为多通道图像： HmppResult HMPPI_Copy_8u_P3C3R(const uint8_t * const src[3], int32_t srcStep, uint8_t * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_P3C3R(const uint16_t * const src[3], int32_t srcStep, uint16_t * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_P3C3R(const int16_t * const src[3], int32_t srcStep, int16_t * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_P3C3R(const int32_t * const src[3], int32_t srcStep, int32_t * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_P3C3R(const float * const src[3], int32_t srcStep, float * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_8u_P4C4R(const uint8_t * const src[4], int32_t srcStep, uint8_t * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16u_P4C4R(const uint16_t * const src[4], int32_t srcStep, uint16_t * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_16s_P4C4R(const int16_t * const src[4], int32_t srcStep, int16_t * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32s_P4C4R(const int32_t * const src[4], int32_t srcStep, int32_t * const dst, int32_t dstStep, HmppiSize roiSize); HmppResult HMPPI_Copy_32f_P4C4R(const float * const src[4], int32_t srcStep, float * const dst, int32_t dstStep, HmppiSize roiSize); #### 参数 | 参数名 | 描述 | 取值范围 | 输入/输出 | | --- | --- | --- | --- | | src | 指向源图像感兴趣区域的指针。 | 非空 | 输入 | | srcStep | 源图像中连续行的起点之间的距离（以字节为单位）。 | 非负整数 | 输入 | | dst | 指向目的图像感兴趣区域的指针。 | 非空 | 输出 | | dstStep | 目标图像中连续行的起点之间的距离（以字节为单位）。 | 非负整数 | 输入 | | roiSize | 源和目标图像感兴趣区域的大小（以像素为单位）。 | roiSize.width∈(0, INT\_MAX]，roiSize.height∈(0, INT\_MAX] | 输入、输出 | | mask | 指向蒙版图像缓冲区的指针。 | 非空 | 输入 | | maskStep | 蒙版图像缓冲区中连续起点之间的距离（以字节为单位）。 | 非负整数 | 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 | src、dst这两个入参中存在空指针。 | | HMPP\_STS\_SIZE\_ERR | roiSize的字段为零或负值。 | | HMPP\_STS\_STEP\_ERR | srcStep、dstStep中存在零或负值。 | | HMPP\_STS\_NOT\_EVEN\_STEP\_ERR | srcStep、dstStep不能被src、dst所属数据类型的字节长度整除的错误条件。 | | HMPP\_STS\_ROI\_ERR | roiSize.width > 步长。 | #### 示例 ``` #define SRC_BUFFER_SIZE_T 90 #define DST_BUFFER_SIZE_T 90 int CopyExample() { HmppiSize roi = { 4, 5 }; const uint8_t src[SRC_BUFFER_SIZE_T] = { 11, 22, 33, 44, 55, 66, 77, 88, 22, 88, 77, 66, 55, 44, 33, 11, 22, 33, 44, 55, 66, 77, 88, 22, 88, 77, 66, 55, 44, 33, 11, 22, 33, 44, 55, 66, 77, 88, 22, 88, 77, 66, 55, 44, 33, 11, 22, 33, 44, 55, 66, 77, 88, 22, 88, 77, 66, 55, 44, 33, 11, 22, 33, 44, 55, 66, 77, 88, 22, 88, 77, 66, 55, 44, 33, 11, 22, 33, 44, 55, 66, 77, 88, 22, 88, 77, 66, 55, 44, 33 }; uint8_t dst[DST_BUFFER_SIZE_T] = {0}; int32_t srcStep = 15 * sizeof(uint8_t); int32_t dstStep = 18 * sizeof(uint8_t); HmppResult result = HMPPI_Copy_8u_C3AC4R(src, srcStep, dst, dstStep, roi); printf("result = %d \ndst = ", result); if (result != HMPP_STS_NO_ERR) { printf("result error: %d\n", result); } int32_t dstWidth = dstStep / sizeof(uint8_t); for (int32_t i = 0; i < DST_BUFFER_SIZE_T; i++) { if( i % dstWidth == 0 ){ printf("\n"); } printf("%3d ",dst[i]); } printf("\n"); return 0; } ``` 运行结果： ``` result = 0 dst = 11 22 33 0 44 55 66 0 77 88 22 0 88 77 66 0 0 0 11 22 33 0 44 55 66 0 77 88 22 0 88 77 66 0 0 0 11 22 33 0 44 55 66 0 77 88 22 0 88 77 66 0 0 0 11 22 33 0 44 55 66 0 77 88 22 0 88 77 66 0 0 0 11 22 33 0 44 55 66 0 77 88 22 0 88 77 66 0 0 0 0 0 0 0 0 0 0 0 0 0 ```