/*
- * Copyright (c) 2001-2002, David Janssens
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* POSSIBILITY OF SUCH DAMAGE.
*/
-#include "mct.h"
-#include "fix.h"
+#ifdef __SSE__
+#include <xmmintrin.h>
+#endif
+
+#include "opj_includes.h"
/* <summary> */
/* This table contains the norms of the basis function of the reversible MCT. */
/* </summary> */
-double mct_norms[3] = { 1.732, .8292, .8292 };
+static const double mct_norms[3] = { 1.732, .8292, .8292 };
/* <summary> */
/* This table contains the norms of the basis function of the irreversible MCT. */
/* </summary> */
-double mct_norms_real[3] = { 1.732, 1.805, 1.573 };
+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> */
-void mct_encode(int *c0, int *c1, int *c2, int n)
+void mct_encode(
+ int* restrict c0,
+ int* restrict c1,
+ int* restrict c2,
+ int n)
{
- int i;
- for (i = 0; i < n; i++) {
- int r, g, b, y, u, v;
- r = c0[i];
- g = c1[i];
- b = c2[i];
- y = (r + (g << 1) + b) >> 2;
- u = b - g;
- v = r - g;
- c0[i] = y;
- c1[i] = u;
- c2[i] = v;
- }
+ int i;
+ for(i = 0; i < n; ++i) {
+ int r = c0[i];
+ int g = c1[i];
+ int b = c2[i];
+ int y = (r + (g * 2) + b) >> 2;
+ int u = b - g;
+ int v = r - g;
+ c0[i] = y;
+ c1[i] = u;
+ c2[i] = v;
+ }
}
/* <summary> */
/* Inverse reversible MCT. */
/* </summary> */
-void mct_decode(int *c0, int *c1, int *c2, int n)
+void mct_decode(
+ int* restrict c0,
+ int* restrict c1,
+ int* restrict c2,
+ int n)
{
- int i;
- for (i = 0; i < n; i++) {
- int y, u, v, r, g, b;
- y = c0[i];
- u = c1[i];
- v = c2[i];
- g = y - ((u + v) >> 2);
- r = v + g;
- b = u + g;
- c0[i] = r;
- c1[i] = g;
- c2[i] = b;
- }
+ int i;
+ for (i = 0; i < n; ++i) {
+ int y = c0[i];
+ int u = c1[i];
+ int v = c2[i];
+ int g = y - ((u + v) >> 2);
+ int r = v + g;
+ int b = u + g;
+ c0[i] = r;
+ c1[i] = g;
+ c2[i] = b;
+ }
}
/* <summary> */
/* Get norm of basis function of reversible MCT. */
/* </summary> */
-double mct_getnorm(int compno)
-{
- return mct_norms[compno];
+double mct_getnorm(int compno) {
+ return mct_norms[compno];
}
/* <summary> */
/* Foward irreversible MCT. */
/* </summary> */
-void mct_encode_real(int *c0, int *c1, int *c2, int n)
+void mct_encode_real(
+ int* restrict c0,
+ int* restrict c1,
+ int* restrict c2,
+ int n)
{
- int i;
- for (i = 0; i < n; i++) {
- int r, g, b, y, u, v;
- r = c0[i];
- g = c1[i];
- b = c2[i];
- y = fix_mul(r, 2449) + fix_mul(g, 4809) + fix_mul(b, 934);
- u = -fix_mul(r, 1382) - fix_mul(g, 2714) + fix_mul(b, 4096);
- v = fix_mul(r, 4096) - fix_mul(g, 3430) - fix_mul(b, 666);
- c0[i] = y;
- c1[i] = u;
- c2[i] = v;
- }
+ int i;
+ for(i = 0; i < n; ++i) {
+ int r = c0[i];
+ int g = c1[i];
+ int b = c2[i];
+ int y = fix_mul(r, 2449) + fix_mul(g, 4809) + fix_mul(b, 934);
+ int u = -fix_mul(r, 1382) - fix_mul(g, 2714) + fix_mul(b, 4096);
+ int v = fix_mul(r, 4096) - fix_mul(g, 3430) - fix_mul(b, 666);
+ c0[i] = y;
+ c1[i] = u;
+ c2[i] = v;
+ }
}
/* <summary> */
/* Inverse irreversible MCT. */
/* </summary> */
-void mct_decode_real(int *c0, int *c1, int *c2, int n)
+void mct_decode_real(
+ float* restrict c0,
+ float* restrict c1,
+ float* restrict c2,
+ int n)
{
- int i;
- for (i = 0; i < n; i++) {
- int y, u, v, r, g, b;
- y = c0[i];
- u = c1[i];
- v = c2[i];
- r = y + fix_mul(v, 11485);
- g = y - fix_mul(u, 2819) - fix_mul(v, 5850);
- b = y + fix_mul(u, 14516);
- c0[i] = r;
- c1[i] = g;
- c2[i] = b;
- }
+ int i;
+#ifdef __SSE__
+ __m128 vrv, vgu, vgv, vbu;
+ vrv = _mm_set1_ps(1.402f);
+ vgu = _mm_set1_ps(0.34413f);
+ vgv = _mm_set1_ps(0.71414f);
+ vbu = _mm_set1_ps(1.772f);
+ for (i = 0; i < (n >> 3); ++i) {
+ __m128 vy, vu, vv;
+ __m128 vr, vg, vb;
+
+ vy = _mm_load_ps(c0);
+ vu = _mm_load_ps(c1);
+ vv = _mm_load_ps(c2);
+ vr = _mm_add_ps(vy, _mm_mul_ps(vv, vrv));
+ vg = _mm_sub_ps(_mm_sub_ps(vy, _mm_mul_ps(vu, vgu)), _mm_mul_ps(vv, vgv));
+ vb = _mm_add_ps(vy, _mm_mul_ps(vu, vbu));
+ _mm_store_ps(c0, vr);
+ _mm_store_ps(c1, vg);
+ _mm_store_ps(c2, vb);
+ c0 += 4;
+ c1 += 4;
+ c2 += 4;
+
+ vy = _mm_load_ps(c0);
+ vu = _mm_load_ps(c1);
+ vv = _mm_load_ps(c2);
+ vr = _mm_add_ps(vy, _mm_mul_ps(vv, vrv));
+ vg = _mm_sub_ps(_mm_sub_ps(vy, _mm_mul_ps(vu, vgu)), _mm_mul_ps(vv, vgv));
+ vb = _mm_add_ps(vy, _mm_mul_ps(vu, vbu));
+ _mm_store_ps(c0, vr);
+ _mm_store_ps(c1, vg);
+ _mm_store_ps(c2, vb);
+ c0 += 4;
+ c1 += 4;
+ c2 += 4;
+ }
+ n &= 7;
+#endif
+ for(i = 0; i < n; ++i) {
+ float y = c0[i];
+ float u = c1[i];
+ float v = c2[i];
+ float r = y + (v * 1.402f);
+ float g = y - (u * 0.34413f) - (v * (0.71414f));
+ float b = y + (u * 1.772f);
+ c0[i] = r;
+ c1[i] = g;
+ c2[i] = b;
+ }
}
/* <summary> */
/* Get norm of basis function of irreversible MCT. */
/* </summary> */
-double mct_getnorm_real(int compno)
+double mct_getnorm_real(int compno) {
+ return mct_norms_real[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,
+ /* 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)
{
- return mct_norms_real[compno];
+ OPJ_FLOAT32 * lMct;
+ OPJ_UINT32 i;
+ OPJ_UINT32 j;
+ OPJ_UINT32 k;
+
+ OPJ_FLOAT32 * lCurrentData = 00;
+ OPJ_FLOAT32 * lCurrentResult = 00;
+ OPJ_FLOAT32 ** lData = (OPJ_FLOAT32 **) pData;
+
+ lCurrentData = (OPJ_FLOAT32 *) opj_malloc (2 * pNbComp * sizeof(OPJ_FLOAT32));
+ if
+ (! lCurrentData)
+ {
+ return OPJ_FALSE;
+ }
+ lCurrentResult = lCurrentData + pNbComp;
+
+ for
+ (i = 0; i < n; ++i)
+ {
+ lMct = (OPJ_FLOAT32 *) pDecodingData;
+ for
+ (j=0;j<pNbComp;++j)
+ {
+ lCurrentData[j] = (OPJ_FLOAT32) (*(lData[j]));
+ }
+ for
+ (j=0;j<pNbComp;++j)
+ {
+ lCurrentResult[j] = 0;
+ for
+ (k=0;k<pNbComp;++k)
+ {
+ lCurrentResult[j] += *(lMct++) * lCurrentData[k];
+ }
+ *(lData[j]++) = (OPJ_FLOAT32) (lCurrentResult[j]);
+ }
+ }
+ 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]);
+ }
}
projects / openjpeg.git / blobdiff