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authorAlon Zakai <azakai@mozilla.com>2011-02-27 16:55:53 -0800
committerAlon Zakai <azakai@mozilla.com>2011-02-27 16:55:53 -0800
commit6b7f4ffa844bd3e1f2690af2501807e1da161034 (patch)
tree49ac3a5e35a09b09a1a2ad7aebbb8e9a6c86f263 /tests/openjpeg/libopenjpeg/mct.c
parente932e70792a50786dedc0461697ed31c7ffa4bb2 (diff)
openjpeg test
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+/*
+ * 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
+ * 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.
+ */
+
+#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> */
+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* restrict c0,
+ int* restrict c1,
+ int* restrict c2,
+ int n)
+{
+ 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* restrict c0,
+ int* restrict c1,
+ int* restrict c2,
+ int n)
+{
+ 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];
+}
+
+/* <summary> */
+/* Foward irreversible MCT. */
+/* </summary> */
+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 = 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(
+ float* restrict c0,
+ float* restrict c1,
+ float* restrict c2,
+ int n)
+{
+ 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) {
+ return mct_norms_real[compno];
+}