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Handle errors from MakeCurrent and SwapBuffers

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This commit is contained in:
Pierre Krieger 2015-06-16 10:15:31 +02:00
parent e48c853b9c
commit f6c26ec593
20 changed files with 123 additions and 62 deletions
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18
src/api/wgl/mod.rs
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@ -1,6 +1,7 @@
#![cfg(any(target_os = "windows"))]
use BuilderAttribs;
use ContextError;
use CreationError;
use GlContext;
use GlRequest;
@ -156,9 +157,12 @@ impl Context {
}
impl GlContext for Context {
unsafe fn make_current(&self) {
// TODO: check return value
gl::wgl::MakeCurrent(self.hdc as *const _, self.context.0 as *const _);
unsafe fn make_current(&self) -> Result<(), ContextError> {
if gl::wgl::MakeCurrent(self.hdc as *const _, self.context.0 as *const _) != 0 {
Ok(())
} else {
Err(ContextError::IoError(io::Error::last_os_error()))
}
}
fn is_current(&self) -> bool {
@ -176,9 +180,11 @@ impl GlContext for Context {
}
}
fn swap_buffers(&self) {
unsafe {
gdi32::SwapBuffers(self.hdc);
fn swap_buffers(&self) -> Result<(), ContextError> {
if unsafe { gdi32::SwapBuffers(self.hdc) } != 0 {
Ok(())
} else {
Err(ContextError::IoError(io::Error::last_os_error()))
}
}