Patch against libpez Cocoa implementation for HiDPI support

pez.cocoa.m.patch

--- pez.cocoa.m	2010-05-15 14:54:51.000000000 -0700
+++ pez.cocoa.m	2017-06-17 20:58:12.000000000 -0700
@@ -53,6 +53,8 @@
 
     [fmt release];
 
+    [self setWantsBestResolutionOpenGLSurface:YES];
+
     m_frameRect = frame;
     m_previousTime = mach_absolute_time();
 
@@ -80,9 +82,11 @@
             [[self window] setOpaque:NO];
             [[self window] setAlphaValue:0.99];
         }
+
+        NSRect viewBounds = [self convertRectToBacking:[self bounds]];
         
         glewInit();
-        const char* szTitle = PezInitialize(PEZ_VIEWPORT_WIDTH, PEZ_VIEWPORT_HEIGHT);
+        const char* szTitle = PezInitialize(viewBounds.size.width, viewBounds.size.height);
         m_didInit = YES;
         
         [[self window] setLevel: NSFloatingWindowLevel];

The full original library and demos may be found here:

http://prideout.net/blog/p36/