Changes to compile in IOS

NOMADVRLib/CompileGLShader.cpp

@@ -69,6 +69,10 @@ GLuint CompileGLShader( const char *pchShaderName, const char *pchVertexShader,
 
 	//tess
 	if (pchTessEvalShader) {
+#if defined (__APPLE__) && !defined (GL_TESS_EVALUATION_SHADER)
+        eprintf ("Tess Eval Shaders unsupported on IOS");
+        return 0;
+#else
 		GLuint  nSceneTessShader = glCreateShader(GL_TESS_EVALUATION_SHADER);
 		glShaderSource(nSceneTessShader, 1, &pchTessEvalShader, nullptr);
 		glCompileShader(nSceneTessShader);
@@ -88,6 +92,7 @@ GLuint CompileGLShader( const char *pchShaderName, const char *pchVertexShader,
 		}
 		glAttachShader(unProgramID, nSceneTessShader);
 		glDeleteShader(nSceneTessShader); // the program hangs onto this once it's attached
+#endif
 	}
 
 	glLinkProgram( unProgramID );

NOMADVRLib/ConfigFile.cpp

@@ -18,6 +18,7 @@
 #include <algorithm>
 #include <errno.h>
 #include <string.h>
+#include <stdlib.h>
 
 #include "ConfigFile.h"
 #include "atoms.hpp"

NOMADVRLib/IsosurfacesGL.cpp

@@ -305,8 +305,13 @@ bool SetupDepthPeeling(int renderWidth, int renderHeight, int zlayers, GLuint *t
 		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT32, renderWidth, renderHeight, 0, 
 			GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, 0);
 #else // 32 unsupported in GLES 3.0
+#ifdef __APPLE__
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, renderWidth, renderHeight, 0,
+                     GL_DEPTH_COMPONENT, GL_FLOAT, 0);
+#else
 		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT32F, renderWidth, renderHeight, 0, 
 			GL_DEPTH_COMPONENT, GL_FLOAT, 0);
+#endif
 #endif
 
 		if ((e = glGetError()) != GL_NO_ERROR)

NOMADVRLib/MyGL.h

@@ -18,6 +18,7 @@
 #define __MYGL_H
 
 //FIXME, support more platforms in the future
+#ifndef __APPLE__
 #if defined(WIN32) || defined(CAVE)
 	#include <GL/glew.h>
 #else // Samsung GearVR + Oculus Mobile
@@ -36,5 +37,15 @@
 		#define GL_DEPTH_COMPONENT32 GL_DEPTH_COMPONENT32_OES
 	#endif
 #endif //WIN32
+#else //__APPLE__
+//#include <OpenGLES/EAGL.h>
+#include <OpenGLES/ES3/gl.h>
+#include <OpenGLES/ES3/glext.h>
+//#ifndef glGenVertexArrays
+//#define glGenVertexArrays glGenVertexArraysOES
+//#define glBindVertexArray glBindVertexArrayOES
+//#define glDeleteVertexArrays glDeleteVertexArraysOES
+//#endif
+#endif //__APPLE__
 
 #endif //__MYGL_H

NOMADVRLib/atomsGL.cpp

@@ -60,7 +60,11 @@ GLenum atomTexture(GLuint t)
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, finalatoms, 1, 0, GL_RGBA, GL_FLOAT, a);
+#ifdef __APPLE__
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, finalatoms, 1, 0, GL_RGBA, GL_FLOAT, a);
+#else
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, finalatoms, 1, 0, GL_RGBA, GL_FLOAT, a);
+#endif
 
 	glBindTexture( GL_TEXTURE_2D, 0 );
 	if ((e = glGetError()) != GL_NO_ERROR) {

NOMADVRLib/polyhedron.cpp

@@ -90,8 +90,8 @@ const int Tetrahedron::Faces[] = {
 
 const int Tetrahedron::nVerts = 4;
 const float Tetrahedron::Verts[] = {
-	sqrt(2.0f)/sqrt(3.0f)*1,		0,	-1.0f/sqrt(3.0f),
-	-sqrt(2.0f) / sqrt(3.0f) * 1, 0, -1.0f / sqrt(3.0f),
-	0,			sqrt(2.0f)/sqrt(3.0f), 1.0f / sqrt(3.0f),
-	0,			-sqrt(2.0f) / sqrt(3.0f), 1.0f / sqrt(3.0f),
-};
\ No newline at end of file
+	sqrtf(2.0f)/sqrtf(3.0f)*1.0f,		0.0f,	-1.0f/sqrtf(3.0f),
+	-sqrtf(2.0f) / sqrtf(3.0f) * 1.0f, 0.0f, -1.0f / sqrtf(3.0f),
+	0.0f,			sqrtf(2.0f)/sqrtf(3.0f), 1.0f / sqrtf(3.0f),
+	0.0f,			-sqrtf(2.0f) / sqrtf(3.0f), 1.0f / sqrtf(3.0f),
+};

NOMADVRLib/polyhedron.h

@@ -20,6 +20,8 @@
 #ifndef __POLYHEDRON_H
 #define __POLYHEDRON_H
 
+#include <math.h>
+
 class Icosahedron {
 public:
     static const int nFaces;