Made glfwGetGammaRamp act directly.

src/cocoa_init.m

@@ -97,7 +97,6 @@ int _glfwPlatformInit(void)
     // Save the original gamma ramp
     _glfw.originalRampSize = CGDisplayGammaTableCapacity(CGMainDisplayID());
     _glfwPlatformGetGammaRamp(&_glfw.originalRamp);
-    _glfw.currentRamp = _glfw.originalRamp;
 
     _glfwInitTimer();
 

src/gamma.c

@@ -86,7 +86,7 @@ GLFWAPI void glfwGetGammaRamp(GLFWgammaramp* ramp)
         return;
     }
 
-    *ramp = _glfw.currentRamp;
+    _glfwPlatformGetGammaRamp(ramp);
 }
 
 GLFWAPI void glfwSetGammaRamp(const GLFWgammaramp* ramp)
@@ -98,7 +98,6 @@ GLFWAPI void glfwSetGammaRamp(const GLFWgammaramp* ramp)
     }
 
     _glfwPlatformSetGammaRamp(ramp);
-    _glfw.currentRamp = *ramp;
     _glfw.rampChanged = GL_TRUE;
 }
 

src/internal.h

@@ -290,7 +290,6 @@ struct _GLFWlibrary
     int             monitorCount;
     GLFWmonitorfun  monitorCallback;
 
-    GLFWgammaramp   currentRamp;
     GLFWgammaramp   originalRamp;
     int             originalRampSize;
     GLboolean       rampChanged;

src/win32_init.c

@@ -182,7 +182,6 @@ int _glfwPlatformInit(void)
     // Save the original gamma ramp
     _glfw.originalRampSize = 256;
     _glfwPlatformGetGammaRamp(&_glfw.originalRamp);
-    _glfw.currentRamp = _glfw.originalRamp;
 
     if (!_glfwInitContextAPI())
         return GL_FALSE;

src/x11_gamma.c

@@ -80,7 +80,6 @@ void _glfwInitGammaRamp(void)
     {
         // Save the original gamma ramp
         _glfwPlatformGetGammaRamp(&_glfw.originalRamp);
-        _glfw.currentRamp = _glfw.originalRamp;
     }
 }