Add MSVC support (#9)

Co-authored-by: justnope <[email protected]>
Co-authored-by: Dan Giddins <[email protected]>

src/analyzer.cpp

@@ -35,6 +35,11 @@ using namespace calf_plugins;
 #define sinc(x) (x == 0) ? 1 : sin(M_PI * x)/(M_PI * x);
 #define RGBAtoINT(r, g, b, a) ((uint32_t)(r * 255) << 24) + ((uint32_t)(g * 255) << 16) + ((uint32_t)(b * 255) << 8) + (uint32_t)(a * 255)
 
+#ifndef M_PI 
+#define M_PI 3.14159265358979323846264338327 
+#endif 
+
+
 analyzer::analyzer() {
     _accuracy       = -1;
     _acc            = -1;

src/audio_fx.cpp

@@ -29,6 +29,14 @@
 using namespace calf_plugins;
 using namespace dsp;
 
+#ifndef M_PI 
+#define M_PI 3.14159265358979323846264338327 
+#endif 
+
+#ifndef M_PI_2
+# define M_PI_2		1.57079632679489661923	/* pi/2 */
+#endif
+
 simple_phaser::simple_phaser(int _max_stages, float *x1vals, float *y1vals)
 {
     max_stages = _max_stages;

src/calf/biquad.h

@@ -26,6 +26,10 @@
 #include <complex>
 #include "primitives.h"
 
+#ifndef M_PI 
+#define M_PI 3.14159265358979323846264338327 
+#endif 
+
 namespace dsp {
 
 /**

src/calf/loudness.h

@@ -25,6 +25,11 @@
 
 #include "biquad.h"
 
+#ifndef M_PI 
+#define M_PI 3.14159265358979323846264338327 
+#endif 
+
+
 namespace dsp {
 
 class aweighter {

src/calf/primitives.h

@@ -30,6 +30,11 @@
 #include <map>
 #include <algorithm>
 
+#ifndef M_PI 
+#define M_PI 3.14159265358979323846264338327 
+#endif 
+
+
 namespace dsp {
 
 /// Set a float to zero

src/modules_dist.cpp

@@ -50,6 +50,10 @@ using namespace calf_plugins;
 
 #define SET_IF_CONNECTED(name) if (params[AM::param_##name] != NULL) *params[AM::param_##name] = name;
 
+#ifndef M_PI 
+#define M_PI 3.14159265358979323846264338327 
+#endif 
+
 /**********************************************************************
  * SATURATOR by Markus Schmidt
 **********************************************************************/

src/veal.cpp

@@ -528,7 +528,6 @@ const LV2_Descriptor *lv2_descriptor(uint32_t index)
 
 #if USE_LADSPA
 extern "C" {
-
 const LADSPA_Descriptor *ladspa_descriptor(unsigned long Index)
 {
     #define PER_MODULE_ITEM(name, isSynth, jackname) if (!isSynth && !(Index--)) return &ladspa_wrapper<name##_audio_module>::get().descriptor;