remove deprecated v1 style function j2k_read_cod
[openjpeg.git] / libopenjpeg / mct.c
index c29218a43aa0e6e5f1be296ac179ea441d45ac2b..ed34be9c6bdaa2ef0d38e539aed32f4a29125355 100644 (file)
@@ -45,6 +45,16 @@ static const double mct_norms[3] = { 1.732, .8292, .8292 };
 /* </summary> */
 static const double mct_norms_real[3] = { 1.732, 1.805, 1.573 };
 
+const OPJ_FLOAT64 * get_mct_norms ()
+{
+       return mct_norms;
+}
+
+const OPJ_FLOAT64 * get_mct_norms_real ()
+{
+       return mct_norms_real;
+}
+
 /* <summary> */
 /* Foward reversible MCT. */
 /* </summary> */
@@ -190,6 +200,62 @@ double mct_getnorm_real(int compno) {
 }
 
 
+opj_bool mct_encode_custom(
+                                          // MCT data
+                                          OPJ_BYTE * pCodingdata,
+                                          // size of components
+                                          OPJ_UINT32 n,
+                                          // components
+                                          OPJ_BYTE ** pData,
+                                          // nb of components (i.e. size of pData)
+                                          OPJ_UINT32 pNbComp,
+                                          // tells if the data is signed
+                                          OPJ_UINT32 isSigned)
+{
+       OPJ_FLOAT32 * lMct = (OPJ_FLOAT32 *) pCodingdata;
+       OPJ_UINT32 i;
+       OPJ_UINT32 j;
+       OPJ_UINT32 k;
+       OPJ_UINT32 lNbMatCoeff = pNbComp * pNbComp;
+       OPJ_INT32 * lCurrentData = 00;
+       OPJ_INT32 * lCurrentMatrix = 00;
+       OPJ_INT32 ** lData = (OPJ_INT32 **) pData;
+       OPJ_UINT32 lMultiplicator = 1 << 13;
+       OPJ_INT32 * lMctPtr;
+
+       lCurrentData = (OPJ_INT32 *) opj_malloc((pNbComp + lNbMatCoeff) * sizeof(OPJ_INT32));
+       if (! lCurrentData) {
+               return OPJ_FALSE;
+       }
+
+       lCurrentMatrix = lCurrentData + pNbComp;
+
+       for (i =0;i<lNbMatCoeff;++i) {
+               lCurrentMatrix[i] = (OPJ_INT32) (*(lMct++) * lMultiplicator);
+       }
+
+       for (i = 0; i < n; ++i)  {
+               lMctPtr = lCurrentMatrix;
+               for (j=0;j<pNbComp;++j) {
+                       lCurrentData[j] = (*(lData[j]));
+               }
+
+               for (j=0;j<pNbComp;++j) {
+                       *(lData[j]) = 0;
+                       for (k=0;k<pNbComp;++k) {
+                               *(lData[j]) += fix_mul(*lMctPtr, lCurrentData[k]);
+                               ++lMctPtr;
+                       }
+
+                       ++lData[j];
+               }
+       }
+
+       opj_free(lCurrentData);
+
+       return OPJ_TRUE;
+}
+
 opj_bool mct_decode_custom(
                                           /* MCT data */
                                           OPJ_BYTE * pDecodingData,
@@ -243,3 +309,25 @@ opj_bool mct_decode_custom(
        opj_free(lCurrentData);
        return OPJ_TRUE;
 }
+
+void opj_calculate_norms(      OPJ_FLOAT64 * pNorms,
+                                                       OPJ_UINT32 pNbComps,
+                                                       OPJ_FLOAT32 * pMatrix)
+{
+       OPJ_UINT32 i,j,lIndex;
+       OPJ_FLOAT32 lCurrentValue;
+       OPJ_FLOAT64 * lNorms = (OPJ_FLOAT64 *) pNorms;
+       OPJ_FLOAT32 * lMatrix = (OPJ_FLOAT32 *) pMatrix;
+
+       for     (i=0;i<pNbComps;++i) {
+               lNorms[i] = 0;
+               lIndex = i;
+
+               for     (j=0;j<pNbComps;++j) {
+                       lCurrentValue = lMatrix[lIndex];
+                       lIndex += pNbComps;
+                       lNorms[i] += lCurrentValue * lCurrentValue;
+               }
+               lNorms[i] = sqrt(lNorms[i]);
+       }
+}