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author | Pierre Krieger <pierre.krieger1708@gmail.com> | 2015-02-16 15:36:32 +0100 |
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committer | Pierre Krieger <pierre.krieger1708@gmail.com> | 2015-02-16 15:36:32 +0100 |
commit | 6bec85e0cc7251e9e12952ad38ef8aa24c772ee8 (patch) | |
tree | 1c9f81456d0bd7a1a408316695b72f6cce0fe781 /src/lib.rs | |
parent | dfbf2adf4a8c70f73d96761bb274476952b91dd3 (diff) | |
download | glutin-6bec85e0cc7251e9e12952ad38ef8aa24c772ee8.tar.gz glutin-6bec85e0cc7251e9e12952ad38ef8aa24c772ee8.zip |
Implement better handling for pixel formats
Diffstat (limited to 'src/lib.rs')
-rw-r--r-- | src/lib.rs | 53 |
1 files changed, 52 insertions, 1 deletions
@@ -170,6 +170,21 @@ pub enum MouseCursor { RowResize, } +/// Describes a possible format. Unused. +#[allow(missing_docs)] +pub struct PixelFormat { + pub red_bits: u8, + pub green_bits: u8, + pub blue_bits: u8, + pub alpha_bits: u8, + pub depth_bits: u8, + pub stencil_bits: u8, + pub stereoscopy: bool, + pub double_buffer: bool, + pub multisampling: Option<u16>, + pub srgb: bool, +} + /// Attributes struct BuilderAttribs<'a> { #[allow(dead_code)] @@ -239,5 +254,41 @@ impl<'a> BuilderAttribs<'a> { (new_attribs, sharing) } -} + fn choose_pixel_format<T, I>(&self, iter: I) -> (T, PixelFormat) + where I: Iterator<Item=(T, PixelFormat)>, T: Clone + { + let mut current_result = None; + + // TODO: do this more properly + for (id, format) in iter { + if format.red_bits + format.green_bits + format.blue_bits < self.color_bits.unwrap_or(0) { + continue; + } + + if format.alpha_bits < self.alpha_bits.unwrap_or(0) { + continue; + } + + if format.depth_bits < self.depth_bits.unwrap_or(0) { + continue; + } + + if format.stencil_bits < self.stencil_bits.unwrap_or(0) { + continue; + } + + if !format.stereoscopy && self.stereoscopy { + continue; + } + + if self.multisampling.is_some() && format.multisampling.is_none() { + continue; + } + + current_result = Some((id, format)); + } + + current_result.expect("Could not find compliant pixel format") + } +} |