void init_cache(void)
{
CSL_sysInit();
MDMA_PRIARB_REG = 0x00000000;
CACHE_wbInvAllL2(CACHE_WAIT);
#ifdef _CAMERA_PIXEL_500W_
InitEMIF_32M();
#else
InitEMIF();
#endif
CACHE_setL1dSize(CACHE_L1_32KCACHE);
CACHE_setL1pSize(CACHE_L1_32KCACHE);
CACHE_setL2Size(CACHE_32KCACHE);
CACHE_wbInvAllL2(CACHE_WAIT);
}
/******************************************************************************
* flushCache
******************************************************************************/
static void flushCache (void)
{
uint32_t key;
/* Disable Interrupts */
key = _disable_interrupts();
CSL_XMC_invalidatePrefetchBuffer();
/*-------------------------------------------------------------------------
* Also flushes L1P and L1D.
*------------------------------------------------------------------------*/
CACHE_wbInvAllL2(CACHE_NOWAIT);
_mfence();
asm(" NOP 9");
asm(" NOP 7");
/* Reenable Interrupts. */
_restore_interrupts(key);
}
/*****************************************************************************
* Prototype : jpeg_decode
* description : JPEG Decode
* Input : Uint8 *pin_buf
Uint8 *pout_buf
Uint32 dim
* Output : None
* Return Value :
* Calls :
* Called By :
* Modification History :
* 1.Date : 2013/10/17
* Author : Gzz
* Modification : Created function
*****************************************************************************/
void jpeg_decode(Uint8 *pin_buf, Uint8 *pout_buf, Uint32 dim )
{
/* Input/Output Buffer Descriptors */
XDM1_BufDesc inputBufDesc, outputBufDesc;
IIMGDEC1_Fxns *IIMGDEC1Fxns;
/*record decoded last byte num*/
XDAS_UInt32 bytesConsumed = 0;
FILE *fp ;
fp = fopen("E:\\jpeg8.jpg", "rb");
fread(jpeg,1, 33052,fp);
fclose(fp);
JPEGDEC_Status status;
JPEGDEC_InArgs inArgs;
JPEGDEC_OutArgs outArgs;
JPEGDEC_DynamicParams dynamic_params;
status.imgdecStatus.size = sizeof(IJPEGDEC_Status);
inArgs.imgdecInArgs.size = sizeof(IJPEGDEC_InArgs);
inArgs.imgdecInArgs.numBytes = dim;//带解码的JPEG图像大小
outArgs.imgdecOutArgs.size = sizeof(IJPEGDEC_OutArgs);
memcpy((void *)&dynamic_params, (void *)&decode_dynamic_default_params, sizeof(JPEGDEC_DynamicParams));
dynamic_params.imgdecDynamicParams.decodeHeader = XDM_PARSE_HEADER;//解析信息头
dynamic_params.frame_numbytes = dim; //一帧JPEG的图像大小
/* set space for buffer descriptors */
inputBufDesc.descs[0].buf = (XDAS_Int8 *)jpeg;
inputBufDesc.descs[0].bufSize = (XDAS_Int32 )dim;
outputBufDesc.descs[0].buf = (XDAS_Int8 *)yuv;
outputBufDesc.descs[0].bufSize = (XDAS_Int32)JPEG_DECODE_INPUT_BUFFER_SIZE ;
IIMGDEC1Fxns = (IIMGDEC1_Fxns *)jpeg_decode_handle->fxns;
jpeg_decode_handle->fxns->algActivate(jpeg_decode_handle);
/* Get Buffer information */
IIMGDEC1Fxns->control((IIMGDEC1_Handle)jpeg_decode_handle, XDM_GETBUFINFO,
(IIMGDEC1_DynamicParams *)&dynamic_params,
(IIMGDEC1_Status *)&status);//获取buffer的信息
/* Fill up the buffers as required by algorithm */
inputBufDesc.numBufs = status.imgdecStatus.bufInfo.minNumInBufs ;//算法需要的输入缓存区的最小buf个数
inputBufDesc.descs[0].bufSize = status.imgdecStatus.bufInfo.minInBufSize[0];//根据算法需求返回的buffer信息。
outputBufDesc.numBufs = status.imgdecStatus.bufInfo.minNumOutBufs ;
outputBufDesc.descs[0].bufSize = status.imgdecStatus.bufInfo.minOutBufSize[0];
IIMGDEC1Fxns->control((IIMGDEC1_Handle)jpeg_decode_handle, XDM_SETPARAMS,
(IIMGDEC1_DynamicParams *)&dynamic_params,
(IIMGDEC1_Status *)&status);//设置算法所需的参数
/* Basic Algorithm process() call */
IIMGDEC1Fxns->process((IIMGDEC1_Handle)jpeg_decode_handle,
(XDM1_BufDesc *)&inputBufDesc,
(XDM1_BufDesc *)&outputBufDesc,
(IIMGDEC1_InArgs *)&inArgs,
(IIMGDEC1_OutArgs *)&outArgs);//处理头信息
CACHE_wbInvAllL1d(CACHE_WAIT);
CACHE_wbInvAllL2(CACHE_WAIT); //cache back to DDR2
IIMGDEC1Fxns->control((IIMGDEC1_Handle)jpeg_decode_handle, XDM_GETSTATUS,
(IIMGDEC1_DynamicParams *)&dynamic_params,
(IIMGDEC1_Status *)&status);//获取当前状态
dynamic_params.imgdecDynamicParams.decodeHeader = XDM_DECODE_AU;//解码数据单元
IIMGDEC1Fxns->control((IIMGDEC1_Handle)jpeg_decode_handle, XDM_RESET,
(IIMGDEC1_DynamicParams *)&dynamic_params,
(IIMGDEC1_Status *)&status);//复位所有的结构体和算法buffer被flash
bytesConsumed = 0;
/* DeActivate the Algorithm */
// jpeg_decode_handle->fxns->algDeactivate(jpeg_decode_handle);
/* Do-While Loop for Decode Call */
do
{
IIMGDEC1Fxns->control((IIMGDEC1_Handle)jpeg_decode_handle, XDM_GETBUFINFO,
(IIMGDEC1_DynamicParams *)&dynamic_params,
(IIMGDEC1_Status *)&status);//获取buffer的信息
/* Fill up the buffers as required by algorithm */
inputBufDesc.numBufs = status.imgdecStatus.bufInfo.minNumInBufs ;//算法需要的输入缓存区的最小buf个数
inputBufDesc.descs[0].bufSize = status.imgdecStatus.bufInfo.minInBufSize[0];//根据算法需求返回的buffer信息。
outputBufDesc.numBufs = status.imgdecStatus.bufInfo.minNumOutBufs ;
outputBufDesc.descs[0].bufSize = status.imgdecStatus.bufInfo.minOutBufSize[0];
IIMGDEC1Fxns->control((IIMGDEC1_Handle)jpeg_decode_handle, XDM_SETPARAMS,
(IIMGDEC1_DynamicParams *)&dynamic_params,
(IIMGDEC1_Status *)&status);//设置算法所需的参数
IIMGDEC1Fxns->process((IIMGDEC1_Handle)jpeg_decode_handle,
(XDM1_BufDesc *)&inputBufDesc,
(XDM1_BufDesc *)&outputBufDesc,
(IIMGDEC1_InArgs *)&inArgs,
(IIMGDEC1_OutArgs *)&outArgs);//解码处理
bytesConsumed += outArgs.imgdecOutArgs.bytesConsumed;//记录一次编码完成的字节数
CACHE_wbInvAllL1d(CACHE_WAIT);
CACHE_wbInvAllL2(CACHE_WAIT); //cache back to DDR2
IIMGDEC1Fxns->control((IIMGDEC1_Handle)jpeg_decode_handle, XDM_GETSTATUS,
(IIMGDEC1_DynamicParams *)&dynamic_params,
(IIMGDEC1_Status *)&status);//获取解码后的状态
if(status.end_of_seq)
{
break;//解码完成标志
}
}while(1);
jpeg_decode_handle->fxns->algDeactivate(jpeg_decode_handle);
jpeg_decode_handle->fxns->algFree(jpeg_decode_handle, (IALG_MemRec *)dec_memTab);
}
void jpeg_encode(Uint8 *pin_buf, Uint8 *pout_buf)
{
FILE *fp ;
Uint8 file_name[256];
static Uint32 num_frame = 0;
sprintf(file_name, "E://test_jpeg//jpeg%d.jpg",num_frame);
num_frame++;
/* Input/Output Buffer Descriptors */
XDM1_BufDesc inputBufDesc, outputBufDesc;
IIMGENC1_Fxns *IIMGENC1Fxns;
/*record had encoded byte num*/
XDAS_UInt32 TotalBytes = 0;
IIMGENC1_Status status;
IIMGENC1_InArgs inArgs;
IIMGENC1_OutArgs outArgs;
IIMGENC1_DynamicParams dynamic_params;
status.size = sizeof(IIMGENC1_Status);
status.extendedError = 0;
inArgs.size = sizeof(IIMGENC1_InArgs);
outArgs.size = sizeof(IIMGENC1_OutArgs);
outArgs.extendedError = 0;
outArgs.bytesGenerated = 0;
outArgs.currentAU = 0;
fp = fopen(file_name,"wb");
memcpy((void *)&dynamic_params, (void *)&encode_dynamic_default_params, sizeof(IIMGENC1_DynamicParams));
dynamic_params.generateHeader = XDM_ENCODE_AU;//直接编码AU
IIMGENC1Fxns = (IIMGENC1_Fxns *)jpeg_encode_handle->fxns;
/* Activate the Algorithm */
jpeg_encode_handle->fxns->algActivate(jpeg_encode_handle);
IIMGENC1Fxns->control((IIMGENC1_Handle)jpeg_encode_handle, XDM_SETPARAMS,
(IIMGENC1_DynamicParams *)&dynamic_params,
(IIMGENC1_Status *)&status);//设置算法所需的参数
IIMGENC1Fxns->control((IIMGENC1_Handle)jpeg_encode_handle, XDM_GETBUFINFO,
(IIMGENC1_DynamicParams *)&dynamic_params,
(IIMGENC1_Status *)&status);//获取输入输出buffer的信息
/* DeActivate the Algorithm */
jpeg_encode_handle->fxns->algDeactivate(jpeg_encode_handle);
/* set space for buffer descriptors */
inputBufDesc.numBufs = status.bufInfo.minNumInBufs ;
inputBufDesc.descs[0].bufSize = status.bufInfo.minInBufSize[0] ;
inputBufDesc.descs[0].buf = (XDAS_Int8 *)pin_buf;
outputBufDesc.descs[0].buf = (XDAS_Int8 *)pout_buf;
outputBufDesc.numBufs = status.bufInfo.minNumOutBufs ;
outputBufDesc.descs[0].bufSize = status.bufInfo.minOutBufSize[0] ;
/* Activate the Algorithm */
jpeg_encode_handle->fxns->algActivate(jpeg_encode_handle);
IIMGENC1Fxns->control((IIMGENC1_Handle)jpeg_encode_handle, XDM_SETPARAMS,
(IIMGENC1_DynamicParams *)&dynamic_params,
(IIMGENC1_Status *)&status);//设置算法所需的参数
/* Basic Algorithm process() call */
IIMGENC1Fxns->process((IIMGENC1_Handle)jpeg_encode_handle,
(XDM1_BufDesc *)&inputBufDesc,
(XDM1_BufDesc *)&outputBufDesc,
(IIMGENC1_InArgs *)&inArgs,
(IIMGENC1_OutArgs *)&outArgs);//处理信息
CACHE_wbInvAllL1d(CACHE_WAIT);
CACHE_wbInvAllL2(CACHE_WAIT);
TotalBytes += outArgs.bytesGenerated;
fwrite(pout_buf,1,TotalBytes,fp);
DEBUG("Out JPEG bytes = %d", TotalBytes);
DEBUG("compress_rate = %d%%", IMAGE_TOTAL_SIZE/TotalBytes);
fclose(fp);
IIMGENC1Fxns->control((IIMGENC1_Handle)jpeg_encode_handle, XDM_SETPARAMS,
(IIMGENC1_DynamicParams *)&dynamic_params,
(IIMGENC1_Status *)&status);//设置算法所需的参数
while (outArgs.currentAU < status.totalAU)//如果当前编码输出的AU比实际的要小，就继续编码
{
/* Basic Algorithm process() call */
IIMGENC1Fxns->process((IIMGENC1_Handle)jpeg_encode_handle,
(XDM1_BufDesc *)&inputBufDesc,(XDM1_BufDesc *)&outputBufDesc,
(IIMGENC1_InArgs *)&inArgs,
(IIMGENC1_OutArgs *)&outArgs);//处理信息
TotalBytes +=outArgs.bytesGenerated;
CACHE_wbInvAllL1d(CACHE_WAIT);
CACHE_wbInvAllL2(CACHE_WAIT);
IIMGENC1Fxns->control((IIMGENC1_Handle)jpeg_encode_handle, XDM_SETPARAMS,
(IIMGENC1_DynamicParams *)&dynamic_params,
(IIMGENC1_Status *)&status);//设置算法所需的参数
}
jpeg_encode_handle->fxns->algDeactivate(jpeg_encode_handle);
jpeg_encode_handle->fxns->algFree(jpeg_encode_handle, (IALG_MemRec *)enc_memTab);
}
