Added _GLFW_USE_RETINA.

CMakeLists.txt

@@ -26,6 +26,7 @@ if (APPLE)
     option(GLFW_BUILD_UNIVERSAL "Build GLFW as a Universal Binary" OFF)
     option(GLFW_USE_CHDIR "Make glfwInit chdir to Contents/Resources" ON)
     option(GLFW_USE_MENUBAR "Populate the menu bar on first window creation" ON)
+    option(GLFW_USE_RETINA "Use the full resolution of Retina displays" ON)
 else()
     option(GLFW_USE_EGL "Use EGL for context creation" OFF)
 endif()
@@ -340,6 +341,10 @@ if (_GLFW_COCOA AND _GLFW_NSGL)
         set(_GLFW_USE_CHDIR 1)
     endif()
 
+    if (GLFW_USE_RETINA)
+        set(_GLFW_USE_RETINA 1)
+    endif()
+
     if (GLFW_BUILD_UNIVERSAL)
         message(STATUS "Building GLFW as Universal Binaries")
         set(CMAKE_OSX_ARCHITECTURES i386;x86_64)

README.md

@@ -47,6 +47,8 @@ The following dependencies are needed by the examples and test programs:
 
  - Added native monitor handle access to native API
  - Added `glfwSetDropCallback` and `GLFWdropfun` for receiving dropped files
+ - [Cocoa] Added `_GLFW_USE_RETINA` to control whether windows will use the full
+           resolution on Retina displays
  - [Cocoa] Bugfix: Using a 1x1 cursor for hidden mode caused some screen
                    recorders to fail
  - [Win32] Bugfix: Failure to load winmm or its functions was not reported to

docs/compile.dox

@@ -165,6 +165,9 @@ directory of bundled applications to the `Contents/Resources` directory.
 `GLFW_USE_MENUBAR` determines whether the first call to
 `glfwCreateWindow` sets up a minimal menu bar.
 
+`GLFW_USE_RETINA` determines whether windows will use the full resolution of
+Retina displays.
+
 `GLFW_BUILD_UNIVERSAL` determines whether to build Universal Binaries.
 
 
@@ -257,5 +260,7 @@ available:
    application bundle during @ref glfwInit (recommended)
  - `_GLFW_USE_MENUBAR` to create and populate the menu bar when the first window
    is created (recommended)
+ - `_GLFW_USE_RETINA` to have windows use the full resolution of Retina displays
+   (recommended)
 
 */

src/cocoa_init.m

@@ -132,6 +132,9 @@ const char* _glfwPlatformGetVersionString(void)
 #if defined(_GLFW_USE_MENUBAR)
         " menubar"
 #endif
+#if defined(_GLFW_USE_RETINA)
+        " retina"
+#endif
 #if defined(_GLFW_BUILD_DLL)
         " dynamic"
 #endif

src/cocoa_window.m

@@ -940,7 +940,9 @@ static GLboolean createWindow(_GLFWwindow* window,
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
     if (floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6)
     {
+#if defined(_GLFW_USE_RETINA)
         [window->ns.view setWantsBestResolutionOpenGLSurface:YES];
+#endif
 
         if (wndconfig->resizable)
             [window->ns.object setCollectionBehavior:NSWindowCollectionBehaviorFullScreenPrimary];

src/glfw_config.h.in

@@ -73,6 +73,8 @@
 #cmakedefine _GLFW_USE_CHDIR
 // Define this to 1 if glfwCreateWindow should populate the menu bar
 #cmakedefine _GLFW_USE_MENUBAR
+// Define this to 1 if windows should use full resolution on Retina displays
+#cmakedefine _GLFW_USE_MENUBAR
 
 // Define this to 1 if using OpenGL as the client library
 #cmakedefine _GLFW_USE_OPENGL