Fix errors when building with -ipa program (#3035)

include/JSystem/JMath/JMATrigonometric.h

@@ -2,8 +2,18 @@
 #define JMATRIGONOMETRIC_H
 
 #include "dolphin/types.h"
+#include <math>
 #include <utility>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+    extern double asin(double);
+    extern double atan(double);
+#ifdef __cplusplus
+}
+#endif
+
 namespace JMath {
 template<typename T>
 struct TAngleConstant_;
@@ -28,6 +38,16 @@ template<int N, typename T>
 struct TSinCosTable {
     std::pair<T, T> table[1 << N];
 
+    TSinCosTable() {
+        init();
+    }
+    void init() {
+        for (int i = 0; i < 1 << N; i++) {
+            table[i].first = sin((i * f64(TAngleConstant_<f32>::RADIAN_DEG360())) / (1 << N));
+            table[i].second = cos((i * f64(TAngleConstant_<f32>::RADIAN_DEG360())) / (1 << N));
+        }
+    }
+
     T sinShort(s16 v) const { return table[(u16)v >> (16U - N)].first; }
     T cosShort(s16 v) const { return table[(u16)v >> (16U - N)].second; }
 
@@ -68,6 +88,19 @@ template<int N, typename T>
 struct TAtanTable {
     T table[N + 1];
     u8 pad[0x1C];
+
+    TAtanTable() {
+        init();
+    }
+
+    void init() {
+        // u32 cast needed for cmplwi instead of cmpwi
+        for (int i = 0; i < (u32)N; i++) {
+            table[i] = atan(i / (f64)N);
+        }
+        table[0] = 0.0f;
+        table[N] = TAngleConstant_<T>::RADIAN_DEG180() / 4.0f;
+    }
 };
 
 /**
@@ -79,6 +112,18 @@ struct TAsinAcosTable {
     T table[N + 1];
     u8 pad[0x1C];
 
+    TAsinAcosTable() {
+        init();
+    }
+
+    void init() {
+        for (int i = 0; i < 1024; i++) {
+            table[i] = asin(i / (f64)N);
+        }
+        table[0] = 0.0f;
+        table[N] = TAngleConstant_<T>::RADIAN_DEG180() / 4.0f;
+    }
+
     T acos_(T x) const {
         if (x >= 1.0f) {
             return 0.0f;