Ticket #50777: pymol-use-glkit.diff

layer0/os_gl.cpp

@@ -3 +3 @@
 
 #include<stdio.h>
 
+const char* PyMOLgluErrorString(GLenum errorCode)
+{
+        static const struct {
+                GLenum code;
+                const char *string;
+        } errors[]=
+        {
+                /* GL */
+                {GL_NO_ERROR, "no error"},
+                {GL_INVALID_ENUM, "invalid enumerant"},
+                {GL_INVALID_VALUE, "invalid value"},
+                {GL_INVALID_OPERATION, "invalid operation"},
+                {GL_STACK_OVERFLOW, "stack overflow"},
+                {GL_STACK_UNDERFLOW, "stack underflow"},
+                {GL_OUT_OF_MEMORY, "out of memory"},
+                {GLU_INVALID_ENUM, "invalid enumerant"},
+                {GLU_INVALID_VALUE, "invalid value"},
+                {GLU_OUT_OF_MEMORY, "out of memory"},
+                {GLU_INCOMPATIBLE_GL_VERSION, "incompatible gl version"},
+                {GLU_INVALID_OPERATION, "invalid operation"},
+
+        {0, NULL }
+        };
+
+        int i;
+
+        for (i=0; errors[i].string; i++)
+        {
+                if (errors[i].code == errorCode)
+                {
+                        return errors[i].string;
+                }
+        }
+
+        return NULL;
+}
+                
 void PyMOLReadPixels(GLint x,
                      GLint y,
                      GLsizei width,
@@ -96 +133 @@
   int flag = 0;
   GLenum glerr = glGetError();
   while(glerr != GL_NO_ERROR) {
-    printf("OpenGL-Error: Where? %s: %s\n", pos, (char *) gluErrorString(glerr));
+    printf("OpenGL-Error: Where? %s: %s\n", pos, (char *) PyMOLgluErrorString(glerr));
     glerr = glGetError();
     flag = 1;
   }

layer0/os_gl.h

@@ -64 +64 @@
 
 /* END PROPRIETARY CODE SEGMENT */
 
+static const char* PyMOLgluErrorString(GLenum errorCode);
+
 void PyMOLReadPixels(GLint x,
                      GLint y,
                      GLsizei width,

layer1/Scene.cpp

@@ -60 +60 @@
 #include <string>
 #include <vector>
 
+#include <GLKit/GLKMatrix4.h>
+
 #ifdef _PYMOL_IP_EXTRAS
 #include "IncentiveCopyToClipboard.h"
 #endif
@@ -9072 +9074 @@
     }
     if(!SettingGetGlobal_b(G, cSetting_ortho)) {
       float fov = SettingGetGlobal_f(G, cSetting_field_of_view);
-      gluPerspective(fov, aspRat, I->FrontSafe, I->BackSafe);
+      // gluPerspective(fov, aspRat, I->FrontSafe, I->BackSafe);
+      glMultMatrixf(GLKMatrix4MakePerspective(fov*PI/180., aspRat, I->FrontSafe, I->BackSafe).m);
     } else {
       height = fmax(R_SMALL4, -I->Pos[2]) * GetFovWidth(G) / 2.f;
       width = height * aspRat;

setup.py

@@ -274 +274 @@
         glut = posix_find_lib(['glut', 'freeglut'], lib_dirs)
         pyogl_libs += ["GL", "GLU", glut]
 
+    if sys.platform == 'darwin':
+       ext_link_args += [
+         "-framework", "GLKit",
+        ]
+
     libs += ["GLEW"]
     libs += pyogl_libs