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Better win32 error messages

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This commit is contained in:
Pierre Krieger 2015-07-09 08:55:29 +02:00
parent 6b5d0e6e28
commit bbd31608e8
1 changed files with 19 additions and 20 deletions
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39
src/api/wgl/mod.rs
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@ -216,7 +216,7 @@ unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'st
{
let share = share.unwrap_or(ptr::null_mut());
let ctxt = if let Some((extra_functions, builder, extensions)) = extra {
if let Some((extra_functions, builder, extensions)) = extra {
if extensions.split(' ').find(|&i| i == "WGL_ARB_create_context").is_some() {
let mut attributes = Vec::new();
@ -308,33 +308,32 @@ unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'st
attributes.push(0);
Some(extra_functions.CreateContextAttribsARB(hdc as *const libc::c_void,
share as *const libc::c_void,
attributes.as_ptr()))
let ctxt = extra_functions.CreateContextAttribsARB(hdc as *const libc::c_void,
share as *const libc::c_void,
attributes.as_ptr());
} else {
None
}
} else {
None
};
let ctxt = match ctxt {
Some(ctxt) => ctxt,
None => {
let ctxt = gl::wgl::CreateContext(hdc as *const libc::c_void);
if !ctxt.is_null() && !share.is_null() {
gl::wgl::ShareLists(share as *const libc::c_void, ctxt);
};
ctxt
if ctxt.is_null() {
return Err(CreationError::OsError(format!("wglCreateContextAttribsARB failed: {}",
format!("{}", io::Error::last_os_error()))));
} else {
return Ok(ContextWrapper(ctxt as winapi::HGLRC));
}
}
};
let ctxt = gl::wgl::CreateContext(hdc as *const libc::c_void);
if ctxt.is_null() {
return Err(CreationError::OsError(format!("OpenGL context creation failed: {}",
return Err(CreationError::OsError(format!("wglCreateContext failed: {}",
format!("{}", io::Error::last_os_error()))));
}
if !share.is_null() {
if gl::wgl::ShareLists(share as *const libc::c_void, ctxt) == 0 {
return Err(CreationError::OsError(format!("wglShareLists failed: {}",
format!("{}", io::Error::last_os_error()))));
}
};
Ok(ContextWrapper(ctxt as winapi::HGLRC))
}