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Add OS version detection on cocoa for selecting latest gl version. Fixes #470

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This commit is contained in:
Felix Kaaman 2015-05-24 15:52:56 +02:00
parent d089ea8674
commit f74f0b52a3
1 changed files with 17 additions and 9 deletions
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26
src/api/cocoa/mod.rs
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@ -340,8 +340,8 @@ impl Window {
// TODO: perhaps we should return error from create_context so we can // TODO: perhaps we should return error from create_context so we can
// determine the cause of failure and possibly recover? // determine the cause of failure and possibly recover?
let (context, pf) = match Window::create_context(*view, &builder) { let (context, pf) = match Window::create_context(*view, &builder) {
Ok((Some(context), Some(pf))) => (context, pf), Ok((context, pf)) => (context, pf),
_ => { return Err(OsError(format!("Couldn't create OpenGL context"))); }, Err(e) => { return Err(OsError(format!("Couldn't create OpenGL context: {}", e))); },
}; };
unsafe { unsafe {
@ -466,10 +466,18 @@ impl Window {
} }
} }
fn create_context(view: id, builder: &BuilderAttribs) -> Result<(Option<IdRef>, Option<PixelFormat>), CreationError> { fn create_context(view: id, builder: &BuilderAttribs) -> Result<(IdRef, PixelFormat), CreationError> {
let profile = match (builder.gl_version, builder.gl_version.to_gl_version(), builder.gl_profile) { let profile = match (builder.gl_version, builder.gl_version.to_gl_version(), builder.gl_profile) {
(GlRequest::Latest, _, Some(GlProfile::Compatibility)) => NSOpenGLProfileVersionLegacy as u32, (GlRequest::Latest, _, Some(GlProfile::Compatibility)) => NSOpenGLProfileVersionLegacy as u32,
(GlRequest::Latest, _, _) => NSOpenGLProfileVersion4_1Core as u32, (GlRequest::Latest, _, _) => {
if NSAppKitVersionNumber.floor() >= NSAppKitVersionNumber10_9 {
NSOpenGLProfileVersion4_1Core as u32
} else if NSAppKitVersionNumber.floor() >= NSAppKitVersionNumber10_7 {
NSOpenGLProfileVersion3_2Core as u32
} else {
NSOpenGLProfileVersionLegacy as u32
}
},
(_, Some((1 ... 2, _)), Some(GlProfile::Core)) | (_, Some((1 ... 2, _)), Some(GlProfile::Core)) |
(_, Some((3 ... 4, _)), Some(GlProfile::Compatibility)) => (_, Some((3 ... 4, _)), Some(GlProfile::Compatibility)) =>
return Err(CreationError::NotSupported), return Err(CreationError::NotSupported),
@ -513,7 +521,7 @@ impl Window {
// attribute list must be null terminated. // attribute list must be null terminated.
attributes.push(0); attributes.push(0);
Ok(unsafe { unsafe {
let pixelformat = IdRef::new(NSOpenGLPixelFormat::alloc(nil).initWithAttributes_(&attributes)); let pixelformat = IdRef::new(NSOpenGLPixelFormat::alloc(nil).initWithAttributes_(&attributes));
if let Some(pixelformat) = pixelformat.non_nil() { if let Some(pixelformat) = pixelformat.non_nil() {
@ -556,14 +564,14 @@ impl Window {
let value = if builder.vsync { 1 } else { 0 }; let value = if builder.vsync { 1 } else { 0 };
cxt.setValues_forParameter_(&value, NSOpenGLContextParameter::NSOpenGLCPSwapInterval); cxt.setValues_forParameter_(&value, NSOpenGLContextParameter::NSOpenGLCPSwapInterval);
(Some(cxt), Some(pf)) Ok((cxt, pf))
} else { } else {
(None, None) Err(CreationError::NotSupported)
} }
} else { } else {
(None, None) Err(CreationError::NotSupported)
}
} }
})
} }
pub fn is_closed(&self) -> bool { pub fn is_closed(&self) -> bool {