JpegDec cornner error fixed (#336)

* Squashed 'hpc/' changes from 1c6ac0e..f28aa9a

f28aa9a update release notes
e9f956a Merge branch 'dev2021.1' into next
04c17bc update release notes
366f577 update release notes
26599b6 Merge branch 'dev2021.1' into next
4e191d6 updates
a40a413 update notes
01d565a Merge branch 'next' of gitenterprise.xilinx.com:FaaSApps/xf_hpc into next
fd999c0 Merge branch 'dev2021.1' into next
dbe158b fix version error
bb0beb4 Merge pull request #77 from liangm/next
95b21eb merge dev2021.1
4ee28f5 Merge branch 'dev2021.1' of gitenterprise.xilinx.com:FaaSApps/xf_hpc into dev2021.1
a188c06 update makefiles
26fd0ea update release notes
b7d6078 Update params.mk
550280c Update params.mk

git-subtree-dir: hpc
git-subtree-split: f28aa9aab61bf0cb761a7844986cad6a2320479f

* Squashed 'codec/' changes from de296e9..15255a2

15255a2 Merge pull request #81 from yunleiz/mergenext
b0d5c50 [kernel] fixed clamping after the idct
c91288a Merge pull request #79 from yunleiz/mergenext
d6b90eb [doc] image for document

git-subtree-dir: codec
git-subtree-split: 15255a29990d2fd5cbdbf24ff74223cb5612419a

Co-authored-by: sdausr <sdausr@xilinx.com>

Author: 2 people

codec/L2/include/hw/jpegDec/XAcc_idct.hpp

@@ -260,7 +260,15 @@ inline void hls_idct_v(uint32_t hls_mcuc,
 
                 for (int j = 0; j < 8; j++) {
 #pragma HLS UNROLL
-                    strm_out[j].write(tmp[j] + 128); //+128
+                    idct_out_t cut = 0;
+                    if ((tmp[j] + 128) > 255) {
+                        cut = 255;
+                    } else if ((tmp[j] + 128) < 0) {
+                        cut = 0;
+                    } else {
+                        cut = (tmp[j] + 128);
+                    }
+                    strm_out[j].write(cut); //+128
                 }
             }
         }
@@ -702,7 +710,6 @@ void decoder_jpg_full_top(ap_uint<_WAxi>* ptr,
 
 } // namespace details
 
-
 // ------------------------------------------------------------
 /**
  * @brief Level 2 : kernel implement for jfif parser + huffman decoder + iQ_iDCT
@@ -726,9 +733,9 @@ void decoder_jpg_full_top(ap_uint<_WAxi>* ptr,
 // frequency 250MHz for kernel, for only huffman core 286MHz by vivado 2018.3
 
 inline void kernelJpegDecoderTop(ap_uint<AXI_WIDTH>* jpeg_pointer,
-                                  const int size,
-                                  ap_uint<64>* yuv_mcu_pointer,
-                                  ap_uint<32>* infos) {
+                                 const int size,
+                                 ap_uint<64>* yuv_mcu_pointer,
+                                 ap_uint<32>* infos) {
     // clang-format off
 
 	//for jfif parser