From ed1d76aaee193a2e5cec558930a25302bda35713 Mon Sep 17 00:00:00 2001
From: Pierre Krieger <pierre.krieger1708@gmail.com>
Date: Sat, 19 Dec 2015 14:36:49 +0100
Subject: Remove now unneeded function

---
 src/lib.rs | 104 -------------------------------------------------------------
 1 file changed, 104 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 794dcb0..5b1aa03 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -448,110 +448,6 @@ pub struct PixelFormatRequirements {
     pub release_behavior: ReleaseBehavior,
 }
 
-impl PixelFormatRequirements {
-    #[cfg(not(target_os = "macos"))]
-    fn choose_pixel_format<T, I>(&self, iter: I) -> Result<(T, PixelFormat), CreationError>
-                                 where I: IntoIterator<Item=(T, PixelFormat)>, T: Clone
-    {
-        if self.release_behavior != ReleaseBehavior::Flush { return Err(CreationError::NoAvailablePixelFormat); }
-        if self.double_buffer == Some(false) { return Err(CreationError::NoAvailablePixelFormat); }
-        if self.float_color_buffer { return Err(CreationError::NoAvailablePixelFormat); }
-
-        // filtering formats that don't match the requirements
-        let iter = iter.into_iter().filter(|&(_, ref format)| {
-            if format.color_bits < self.color_bits.unwrap_or(0) {
-                return false;
-            }
-
-            if format.alpha_bits < self.alpha_bits.unwrap_or(0) {
-                return false;
-            }
-
-            if format.depth_bits < self.depth_bits.unwrap_or(0) {
-                return false;
-            }
-
-            if format.stencil_bits < self.stencil_bits.unwrap_or(0) {
-                return false;
-            }
-
-            if !format.stereoscopy && self.stereoscopy {
-                return false;
-            }
-
-            if let Some(req_ms) = self.multisampling {
-                match format.multisampling {
-                    Some(val) if val >= req_ms => (),
-                    _ => return false
-                }
-            } else {
-                if format.multisampling.is_some() {
-                    return false;
-                }
-            }
-
-            if self.srgb && !format.srgb {
-                return false;
-            }
-
-            true
-        });
-
-        // sorting so that the preferred format comes first
-        let mut formats = iter.collect::<Vec<_>>();
-        formats.sort_by(|&(_, ref left), &(_, ref right)| {
-            // prefer hardware-accelerated formats
-            if left.hardware_accelerated && !right.hardware_accelerated {
-                return Ordering::Less;
-            } else if right.hardware_accelerated && !left.hardware_accelerated {
-                return Ordering::Greater;
-            }
-
-            // prefer sRGB formats
-            if left.srgb && !right.srgb {
-                return Ordering::Less;
-            } else if right.srgb && !left.srgb {
-                return Ordering::Greater;
-            }
-
-            // prefer formats with the highest color+alpha bits
-            if left.color_bits + left.alpha_bits != right.color_bits + right.alpha_bits {
-                return (right.color_bits + right.alpha_bits)
-                                                        .cmp(&(left.color_bits + left.alpha_bits));
-            }
-
-            // prefer double-buffering formats
-            if left.double_buffer && !right.double_buffer {
-                return Ordering::Less;
-            } else if right.double_buffer && !left.double_buffer {
-                return Ordering::Greater;
-            }
-
-            // prefer formats with the highest depth bits
-            if left.depth_bits != right.depth_bits {
-                return (right.depth_bits).cmp(&left.depth_bits);
-            }
-
-            // prefer formats with the highest stencil bits
-            if left.stencil_bits != right.stencil_bits {
-                return (right.stencil_bits).cmp(&left.stencil_bits);
-            }
-
-            // prefer formats with multisampling
-            if left.multisampling.is_some() && right.multisampling.is_none() {
-                return Ordering::Less;
-            } else if right.multisampling.is_some() && left.multisampling.is_none() {
-                return Ordering::Greater;
-            }
-
-            // default
-            return Ordering::Equal;
-        });
-
-        formats.into_iter().next().ok_or(CreationError::NoAvailablePixelFormat)
-    }
-}
-
 impl Default for PixelFormatRequirements {
     #[inline]
     fn default() -> PixelFormatRequirements {
-- 
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