/*
- * 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"
+#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 };
/* <summary> */
/* Foward reversible MCT. */
/* </summary> */
-void mct_encode(int *c0, int *c1, int *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;
- }
+void mct_encode(int *c0, int *c1, int *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;
+ }
}
/* <summary> */
/* Inverse reversible MCT. */
/* </summary> */
-void mct_decode(int *c0, int *c1, int *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;
- }
+void mct_decode(int *c0, int *c1, int *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;
+ }
}
/* <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)
-{
- 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;
- }
+void mct_encode_real(int *c0, int *c1, int *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;
+ }
}
/* <summary> */
/* Inverse irreversible MCT. */
/* </summary> */
-void mct_decode_real(int *c0, int *c1, int *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;
- }
+void mct_decode_real(int *c0, int *c1, int *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;
+ }
}
/* <summary> */
/* Get norm of basis function of irreversible MCT. */
/* </summary> */
-double mct_getnorm_real(int compno)
-{
- return mct_norms_real[compno];
+double mct_getnorm_real(int compno) {
+ return mct_norms_real[compno];
}