-/*\r
- * Copyright (c) 2001-2003, David Janssens\r
- * Copyright (c) 2002-2003, Yannick Verschueren\r
- * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe\r
- * Copyright (c) 2005, Hervé Drolon, FreeImage Team\r
- * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium\r
- * All rights reserved.\r
- *\r
- * Redistribution and use in source and binary forms, with or without\r
- * modification, are permitted provided that the following conditions\r
- * are met:\r
- * 1. Redistributions of source code must retain the above copyright\r
- * notice, this list of conditions and the following disclaimer.\r
- * 2. Redistributions in binary form must reproduce the above copyright\r
- * notice, this list of conditions and the following disclaimer in the\r
- * documentation and/or other materials provided with the distribution.\r
- *\r
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'\r
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE\r
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
- * POSSIBILITY OF SUCH DAMAGE.\r
- */\r
-\r
-#include "opj_includes.h"\r
-\r
-/* <summary> */\r
-/* This table contains the norms of the basis function of the reversible MCT. */\r
-/* </summary> */\r
-static const double mct_norms[3] = { 1.732, .8292, .8292 };\r
-\r
-/* <summary> */\r
-/* This table contains the norms of the basis function of the irreversible MCT. */\r
-/* </summary> */\r
-static const double mct_norms_real[3] = { 1.732, 1.805, 1.573 };\r
-\r
-/* <summary> */\r
-/* Foward reversible MCT. */\r
-/* </summary> */\r
-void mct_encode(int *c0, int *c1, int *c2, int n) {\r
- int i;\r
- for (i = 0; i < n; i++) {\r
- int r, g, b, y, u, v;\r
- r = c0[i];\r
- g = c1[i];\r
- b = c2[i];\r
- y = (r + (g << 1) + b) >> 2;\r
- u = b - g;\r
- v = r - g;\r
- c0[i] = y;\r
- c1[i] = u;\r
- c2[i] = v;\r
- }\r
-}\r
-\r
-/* <summary> */\r
-/* Inverse reversible MCT. */\r
-/* </summary> */\r
-void mct_decode(int *c0, int *c1, int *c2, int n) {\r
- int i;\r
- for (i = 0; i < n; i++) {\r
- int y, u, v, r, g, b;\r
- y = c0[i];\r
- u = c1[i];\r
- v = c2[i];\r
- g = y - ((u + v) >> 2);\r
- r = v + g;\r
- b = u + g;\r
- c0[i] = r;\r
- c1[i] = g;\r
- c2[i] = b;\r
- }\r
-}\r
-\r
-/* <summary> */\r
-/* Get norm of basis function of reversible MCT. */\r
-/* </summary> */\r
-double mct_getnorm(int compno) {\r
- return mct_norms[compno];\r
-}\r
-\r
-/* <summary> */\r
-/* Foward irreversible MCT. */\r
-/* </summary> */\r
-void mct_encode_real(int *c0, int *c1, int *c2, int n) {\r
- int i;\r
- for (i = 0; i < n; i++) {\r
- int r, g, b, y, u, v;\r
- r = c0[i];\r
- g = c1[i];\r
- b = c2[i];\r
- y = fix_mul(r, 2449) + fix_mul(g, 4809) + fix_mul(b, 934);\r
- u = -fix_mul(r, 1382) - fix_mul(g, 2714) + fix_mul(b, 4096);\r
- v = fix_mul(r, 4096) - fix_mul(g, 3430) - fix_mul(b, 666);\r
- c0[i] = y;\r
- c1[i] = u;\r
- c2[i] = v;\r
- }\r
-}\r
-\r
-/* <summary> */\r
-/* Inverse irreversible MCT. */\r
-/* </summary> */\r
-void mct_decode_real(int *c0, int *c1, int *c2, int n) {\r
- int i;\r
- for (i = 0; i < n; i++) {\r
- int y, u, v, r, g, b;\r
- y = c0[i];\r
- u = c1[i];\r
- v = c2[i];\r
- r = y + fix_mul(v, 11485);\r
- g = y - fix_mul(u, 2819) - fix_mul(v, 5850);\r
- b = y + fix_mul(u, 14516);\r
- c0[i] = r;\r
- c1[i] = g;\r
- c2[i] = b;\r
- }\r
-}\r
-\r
-/* <summary> */\r
-/* Get norm of basis function of irreversible MCT. */\r
-/* </summary> */\r
-double mct_getnorm_real(int compno) {\r
- return mct_norms_real[compno];\r
-}\r
+/*
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
+ * Copyright (c) 2005, Hervé Drolon, FreeImage Team
+ * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "opj_includes.h"
+
+/* <summary> */
+/* This table contains the norms of the basis function of the reversible MCT. */
+/* </summary> */
+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> */
+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;
+ }
+}
+
+/* <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;
+ }
+}
+
+/* <summary> */
+/* Get norm of basis function of reversible MCT. */
+/* </summary> */
+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;
+ }
+}
+
+/* <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;
+ }
+}
+
+/* <summary> */
+/* Get norm of basis function of irreversible MCT. */
+/* </summary> */
+double mct_getnorm_real(int compno) {
+ return mct_norms_real[compno];
+}
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff