9249     register JPEG_BLOCK_TYPE *pdata;  in msAPI_JPEG_idct()  local
9255     pdata = data;  in msAPI_JPEG_idct()
9259         if ( ( pdata[1] | pdata[2] | pdata[3] | pdata[4] | pdata[5] | pdata[6] | pdata[7] ) == 0 )  in msAPI_JPEG_idct()
9261             MS_S16 dc_val = ( MS_S16 )( pdata[0] << 2 );  in msAPI_JPEG_idct()
9272             pdata += 8;       /* advance pointer to next row */  in msAPI_JPEG_idct()
9277         a2 = ( MS_S32 )pdata[2];  in msAPI_JPEG_idct()
9278         a3 = ( MS_S32 )pdata[6];  in msAPI_JPEG_idct()
9284         t0 = ( ( MS_S32 )pdata[0] + ( MS_S32 )pdata[4] ) << 13;  in msAPI_JPEG_idct()
9285         t1 = ( ( MS_S32 )pdata[0] - ( MS_S32 )pdata[4] ) << 13;  in msAPI_JPEG_idct()
9292         t0 = ( MS_S32 )pdata[7];  in msAPI_JPEG_idct()
9293         t1 = ( MS_S32 )pdata[5];  in msAPI_JPEG_idct()
9294         t2 = ( MS_S32 )pdata[3];  in msAPI_JPEG_idct()
9295         t3 = ( MS_S32 )pdata[1];  in msAPI_JPEG_idct()
9329         pdata += 8;  in msAPI_JPEG_idct()
9333     pdata = workspace;  in msAPI_JPEG_idct()
9338 …if ( ( pdata[8 * 1] | pdata[8 * 2] | pdata[8 * 3] | pdata[8 * 4] | pdata[8 * 5] | pdata[8 * 6] | p…  in msAPI_JPEG_idct()
9340             MS_S16 dc_val = ( MS_S16 )DESCALE( ( MS_S32 )pdata[0], 2 + 3 ) + 128;  in msAPI_JPEG_idct()
9349                 pdata++;  in msAPI_JPEG_idct()
9360                 pdata++;  in msAPI_JPEG_idct()
9372                 pdata++;  in msAPI_JPEG_idct()
9383             pdata++;  in msAPI_JPEG_idct()
9388         a2 = ( MS_S32 )pdata[8 * 2];  in msAPI_JPEG_idct()
9389         a3 = ( MS_S32 )pdata[8 * 6];  in msAPI_JPEG_idct()
9395         t0 = ( ( MS_S32 )pdata[8 * 0] + ( MS_S32 )pdata[8 * 4] ) << 13;  in msAPI_JPEG_idct()
9396         t1 = ( ( MS_S32 )pdata[8 * 0] - ( MS_S32 )pdata[8 * 4] ) << 13;  in msAPI_JPEG_idct()
9403         t0 = ( MS_S32 )pdata[8 * 7];  in msAPI_JPEG_idct()
9404         t1 = ( MS_S32 )pdata[8 * 5];  in msAPI_JPEG_idct()
9405         t2 = ( MS_S32 )pdata[8 * 3];  in msAPI_JPEG_idct()
9406         t3 = ( MS_S32 )pdata[8 * 1];  in msAPI_JPEG_idct()
9438             pdata++;  in msAPI_JPEG_idct()
9451             pdata++;  in msAPI_JPEG_idct()
9468             pdata++;  in msAPI_JPEG_idct()
9493         pdata++;  in msAPI_JPEG_idct()