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2026-07-27 14:50:01 +08:00
commit 36193aec44
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+/***********************************************************************
+** Copyright (C) 2019 LP-Research
+** All rights reserved.
+** Contact: LP-Research (info@lp-research.com)
+***********************************************************************/
+
+#include "LpMatrix.h"
+
+void createIdentity3x3(LpMatrix3x3f* dest)
+{
+    matZero3x3(dest);
+
+    dest->data[0][0] = 1;
+    dest->data[1][1] = 1;
+    dest->data[2][2] = 1;
+}
+
+void createIdentity4x4(LpMatrix4x4f* dest)
+{
+    matZero4x4(dest);
+
+    dest->data[0][0] = 1;
+    dest->data[1][1] = 1;
+    dest->data[2][2] = 1;
+    dest->data[3][3] = 1;
+}
+
+void matZero3x3(LpMatrix3x3f* dest)
+{
+    dest->data[0][0] = 0;
+    dest->data[0][1] = 0;
+    dest->data[0][2] = 0;
+
+    dest->data[1][0] = 0;
+    dest->data[1][1] = 0;
+    dest->data[1][2] = 0;
+
+    dest->data[2][0] = 0;
+    dest->data[2][1] = 0;
+    dest->data[2][2] = 0;
+}
+
+void matZero3x4(LpMatrix3x4f* dest)
+{
+    dest->data[0][0] = 0;
+    dest->data[0][1] = 0;
+    dest->data[0][2] = 0;
+    dest->data[0][3] = 0;
+
+    dest->data[1][0] = 0;
+    dest->data[1][1] = 0;
+    dest->data[1][2] = 0;
+    dest->data[1][3] = 0;
+
+    dest->data[2][0] = 0;
+    dest->data[2][1] = 0;
+    dest->data[2][2] = 0;
+    dest->data[2][3] = 0;
+}
+
+void matZero4x3(LpMatrix4x3f* dest)
+{
+    dest->data[0][0] = 0;
+    dest->data[0][1] = 0;
+    dest->data[0][2] = 0;
+
+    dest->data[1][0] = 0;
+    dest->data[1][1] = 0;
+    dest->data[1][2] = 0;
+
+    dest->data[2][0] = 0;
+    dest->data[2][1] = 0;
+    dest->data[2][2] = 0;
+
+    dest->data[3][0] = 0;
+    dest->data[3][1] = 0;
+    dest->data[3][2] = 0;
+}
+
+void matZero4x4(LpMatrix4x4f* dest)
+{
+    dest->data[0][0] = 0;
+    dest->data[0][1] = 0;
+    dest->data[0][2] = 0;
+    dest->data[0][3] = 0;
+
+    dest->data[1][0] = 0;
+    dest->data[1][1] = 0;
+    dest->data[1][2] = 0;
+    dest->data[1][3] = 0;
+
+    dest->data[2][0] = 0;
+    dest->data[2][1] = 0;
+    dest->data[2][2] = 0;
+    dest->data[2][3] = 0;
+
+    dest->data[3][0] = 0;
+    dest->data[3][1] = 0;
+    dest->data[3][2] = 0;
+    dest->data[3][3] = 0;
+}
+
+void vectZero3x1(LpVector3f* dest)
+{
+    dest->data[0] = 0;
+    dest->data[1] = 0;
+    dest->data[2] = 0;
+}
+
+void vectZero4x1(LpVector4f* dest)
+{
+    dest->data[0] = 0;
+    dest->data[1] = 0;
+    dest->data[2] = 0;
+    dest->data[3] = 0;
+}
+
+#ifdef __WIN32
+
+#include "stdio.h"
+
+void print4x4(LpMatrix4x4f m)
+{
+    int i, j;
+
+    for (i = 0; i < 4; i++) {
+        for (j = 0; j < 4; j++) {
+            printf("%f, ", m.data[i][j]);
+        }
+        printf("\n");
+    }
+}
+
+#endif