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authorJef <jef@targetspot.com>2024-09-24 08:54:57 -0400
committerJef <jef@targetspot.com>2024-09-24 08:54:57 -0400
commit20d28e80a5c861a9d5f449ea911ab75b4f37ad0d (patch)
tree12f17f78986871dd2cfb0a56e5e93b545c1ae0d0 /Src/Plugins/Visualization/vis_avs/matrix.cpp
parent537bcbc86291b32fc04ae4133ce4d7cac8ebe9a7 (diff)
downloadwinamp-20d28e80a5c861a9d5f449ea911ab75b4f37ad0d.tar.gz
Initial community commit
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diff --git a/Src/Plugins/Visualization/vis_avs/matrix.cpp b/Src/Plugins/Visualization/vis_avs/matrix.cpp
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+/*
+ LICENSE
+ -------
+Copyright 2005 Nullsoft, Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ * 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.
+
+ * Neither the name of Nullsoft nor the names of its contributors may be used to
+ endorse or promote products derived from this software without specific prior written permission.
+
+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 <windows.h>
+#include <math.h>
+#include "r_defs.h"
+
+void matrixRotate(float matrix[], char m, float Deg) {
+ char m1, m2;
+ float c,s;
+ Deg *= 3.141592653589f / 180.0f;
+ memset(matrix,0,sizeof(float)*16);
+ matrix[((m-1)<<2)+m-1] = matrix[15] = 1.0f;
+ m1 = (m % 3);
+ m2 = ((m1+1) % 3);
+ c = (float)cos(Deg); s = (float)sin(Deg);
+ matrix[(m1<<2)+m1]=c; matrix[(m1<<2)+m2]=s;
+ matrix[(m2<<2)+m2]=c; matrix[(m2<<2)+m1]=-s;
+}
+
+void matrixTranslate(float m[], float x, float y, float z) {
+ memset(m,0,sizeof(float)*16);
+ m[0] = m[4+1] = m[8+2] = m[12+3] = 1.0f;
+ m[0+3] = x; m[4+3] = y; m[8+3] = z;
+}
+
+void matrixMultiply(float *dest, float src[]) {
+ float temp[16];
+ int i;
+ memcpy(temp,dest,sizeof(float)*16);
+ for (i = 0; i < 16; i += 4) {
+ *dest++ = src[i+0]*temp[(0<<2)+0]+src[i+1]*temp[(1<<2)+0]+
+ src[i+2]*temp[(2<<2)+0]+src[i+3]*temp[(3<<2)+0];
+ *dest++ = src[i+0]*temp[(0<<2)+1]+src[i+1]*temp[(1<<2)+1]+
+ src[i+2]*temp[(2<<2)+1]+src[i+3]*temp[(3<<2)+1];
+ *dest++ = src[i+0]*temp[(0<<2)+2]+src[i+1]*temp[(1<<2)+2]+
+ src[i+2]*temp[(2<<2)+2]+src[i+3]*temp[(3<<2)+2];
+ *dest++ = src[i+0]*temp[(0<<2)+3]+src[i+1]*temp[(1<<2)+3]+
+ src[i+2]*temp[(2<<2)+3]+src[i+3]*temp[(3<<2)+3];
+ }
+}
+
+void matrixApply(float *m, float x, float y, float z,
+ float *outx, float *outy, float *outz) {
+ *outx = x*m[0] + y*m[1] + z*m[2] + m[3];
+ *outy = x*m[4] + y*m[5] + z*m[6] + m[7];
+ *outz = x*m[8] + y*m[9] + z*m[10] + m[11];
+}