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Merge pull request #532 from tomaka/precise-errors

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Precise errors
This commit is contained in:
tomaka 2015-07-21 17:49:52 +02:00
parent ca1eb8dc53 7fe828bed3
commit 04a651320b
6 changed files with 36 additions and 23 deletions
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8
src/api/cocoa/mod.rs
View file

@ -335,7 +335,7 @@ impl Window {
match builder.gl_robustness { match builder.gl_robustness {
Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => { Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => {
return Err(CreationError::NotSupported); return Err(CreationError::RobustnessNotSupported);
}, },
_ => () _ => ()
} }
@ -512,11 +512,11 @@ impl Window {
}, },
(_, 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::OpenGlVersionNotSupported),
(_, Some((1 ... 2, _)), _) => NSOpenGLProfileVersionLegacy as u32, (_, Some((1 ... 2, _)), _) => NSOpenGLProfileVersionLegacy as u32,
(_, Some((3, 0 ... 2)), _) => NSOpenGLProfileVersion3_2Core as u32, (_, Some((3, 0 ... 2)), _) => NSOpenGLProfileVersion3_2Core as u32,
(_, Some((3 ... 4, _)), _) => NSOpenGLProfileVersion4_1Core as u32, (_, Some((3 ... 4, _)), _) => NSOpenGLProfileVersion4_1Core as u32,
_ => return Err(CreationError::NotSupported), _ => return Err(CreationError::OpenGlVersionNotSupported),
}; };
// NOTE: OS X no longer has the concept of setting individual // NOTE: OS X no longer has the concept of setting individual
@ -603,7 +603,7 @@ impl Window {
Err(CreationError::NotSupported) Err(CreationError::NotSupported)
} }
} else { } else {
Err(CreationError::NotSupported) Err(CreationError::NoAvailablePixelFormat)
} }
} }
} }

24
src/api/egl/mod.rs
View file

@ -68,7 +68,7 @@ impl Context {
} else if egl.BindAPI(ffi::egl::OPENGL_ES_API) != 0 { } else if egl.BindAPI(ffi::egl::OPENGL_ES_API) != 0 {
(None, Api::OpenGlEs) (None, Api::OpenGlEs)
} else { } else {
return Err(CreationError::NotSupported); return Err(CreationError::OpenGlVersionNotSupported);
} }
} else { } else {
(None, Api::OpenGlEs) (None, Api::OpenGlEs)
@ -77,21 +77,21 @@ impl Context {
GlRequest::Specific(Api::OpenGlEs, version) => { GlRequest::Specific(Api::OpenGlEs, version) => {
if egl_version >= (1, 2) { if egl_version >= (1, 2) {
if egl.BindAPI(ffi::egl::OPENGL_ES_API) == 0 { if egl.BindAPI(ffi::egl::OPENGL_ES_API) == 0 {
return Err(CreationError::NotSupported); return Err(CreationError::OpenGlVersionNotSupported);
} }
} }
(Some(version), Api::OpenGlEs) (Some(version), Api::OpenGlEs)
}, },
GlRequest::Specific(Api::OpenGl, version) => { GlRequest::Specific(Api::OpenGl, version) => {
if egl_version < (1, 4) { if egl_version < (1, 4) {
return Err(CreationError::NotSupported); return Err(CreationError::OpenGlVersionNotSupported);
} }
if egl.BindAPI(ffi::egl::OPENGL_API) == 0 { if egl.BindAPI(ffi::egl::OPENGL_API) == 0 {
return Err(CreationError::NotSupported); return Err(CreationError::OpenGlVersionNotSupported);
} }
(Some(version), Api::OpenGl) (Some(version), Api::OpenGl)
}, },
GlRequest::Specific(_, _) => return Err(CreationError::NotSupported), GlRequest::Specific(_, _) => return Err(CreationError::OpenGlVersionNotSupported),
GlRequest::GlThenGles { opengles_version, opengl_version } => { GlRequest::GlThenGles { opengles_version, opengl_version } => {
if egl_version >= (1, 4) { if egl_version >= (1, 4) {
if egl.BindAPI(ffi::egl::OPENGL_API) != 0 { if egl.BindAPI(ffi::egl::OPENGL_API) != 0 {
@ -99,7 +99,7 @@ impl Context {
} else if egl.BindAPI(ffi::egl::OPENGL_ES_API) != 0 { } else if egl.BindAPI(ffi::egl::OPENGL_ES_API) != 0 {
(Some(opengles_version), Api::OpenGlEs) (Some(opengles_version), Api::OpenGlEs)
} else { } else {
return Err(CreationError::NotSupported); return Err(CreationError::OpenGlVersionNotSupported);
} }
} else { } else {
(Some(opengles_version), Api::OpenGlEs) (Some(opengles_version), Api::OpenGlEs)
@ -245,7 +245,7 @@ impl<'a> ContextPrototype<'a> {
{ {
ctxt ctxt
} else { } else {
return Err(CreationError::NotSupported); return Err(CreationError::OpenGlVersionNotSupported);
} }
} else { } else {
@ -267,7 +267,7 @@ impl<'a> ContextPrototype<'a> {
{ {
ctxt ctxt
} else { } else {
return Err(CreationError::NotSupported); return Err(CreationError::OpenGlVersionNotSupported);
} }
} }
}; };
@ -434,7 +434,7 @@ unsafe fn create_context(egl: &ffi::egl::Egl, display: ffi::egl::types::EGLDispl
context_attributes.push(ffi::egl::NO_RESET_NOTIFICATION as libc::c_int); context_attributes.push(ffi::egl::NO_RESET_NOTIFICATION as libc::c_int);
flags = flags | ffi::egl::CONTEXT_OPENGL_ROBUST_ACCESS as libc::c_int; flags = flags | ffi::egl::CONTEXT_OPENGL_ROBUST_ACCESS as libc::c_int;
} else { } else {
return Err(CreationError::NotSupported); return Err(CreationError::RobustnessNotSupported);
} }
}, },
@ -454,7 +454,7 @@ unsafe fn create_context(egl: &ffi::egl::Egl, display: ffi::egl::types::EGLDispl
context_attributes.push(ffi::egl::LOSE_CONTEXT_ON_RESET as libc::c_int); context_attributes.push(ffi::egl::LOSE_CONTEXT_ON_RESET as libc::c_int);
flags = flags | ffi::egl::CONTEXT_OPENGL_ROBUST_ACCESS as libc::c_int; flags = flags | ffi::egl::CONTEXT_OPENGL_ROBUST_ACCESS as libc::c_int;
} else { } else {
return Err(CreationError::NotSupported); return Err(CreationError::RobustnessNotSupported);
} }
}, },
@ -488,7 +488,7 @@ unsafe fn create_context(egl: &ffi::egl::Egl, display: ffi::egl::types::EGLDispl
// robustness is not supported // robustness is not supported
match gl_robustness { match gl_robustness {
Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => { Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => {
return Err(CreationError::NotSupported); return Err(CreationError::RobustnessNotSupported);
}, },
_ => () _ => ()
} }
@ -504,7 +504,7 @@ unsafe fn create_context(egl: &ffi::egl::Egl, display: ffi::egl::types::EGLDispl
if context.is_null() { if context.is_null() {
match egl.GetError() as u32 { match egl.GetError() as u32 {
ffi::egl::BAD_ATTRIBUTE => return Err(CreationError::NotSupported), ffi::egl::BAD_ATTRIBUTE => return Err(CreationError::OpenGlVersionNotSupported),
e => panic!("eglCreateContext failed: 0x{:x}", e), e => panic!("eglCreateContext failed: 0x{:x}", e),
} }
} }

3
src/api/glx/mod.rs
View file

@ -301,7 +301,7 @@ fn create_context(glx: &ffi::glx::Glx, extra_functions: &ffi::glx_extra::Glx, ex
} else { } else {
match robustness { match robustness {
Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => { Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => {
return Err(CreationError::NotSupported); return Err(CreationError::RobustnessNotSupported);
}, },
_ => () _ => ()
} }
@ -328,6 +328,7 @@ fn create_context(glx: &ffi::glx::Glx, extra_functions: &ffi::glx_extra::Glx, ex
}; };
if context.is_null() { if context.is_null() {
// TODO: check for errors and return `OpenGlVersionNotSupported`
return Err(CreationError::OsError(format!("GL context creation failed"))); return Err(CreationError::OsError(format!("GL context creation failed")));
} }

4
src/api/osmesa/mod.rs
View file

@ -41,11 +41,13 @@ impl OsMesaContext {
match builder.gl_robustness { match builder.gl_robustness {
Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => { Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => {
return Err(CreationError::NotSupported.into()); return Err(CreationError::RobustnessNotSupported.into());
}, },
_ => () _ => ()
} }
// TODO: check OpenGL version and return `OpenGlVersionNotSupported` if necessary
Ok(OsMesaContext { Ok(OsMesaContext {
width: dimensions.0, width: dimensions.0,
height: dimensions.1, height: dimensions.1,

8
src/api/wgl/mod.rs
View file

@ -235,7 +235,7 @@ unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'st
attributes.push(gl::wgl_extra::CONTEXT_PROFILE_MASK_ARB as libc::c_int); attributes.push(gl::wgl_extra::CONTEXT_PROFILE_MASK_ARB as libc::c_int);
attributes.push(gl::wgl_extra::CONTEXT_ES2_PROFILE_BIT_EXT as libc::c_int); attributes.push(gl::wgl_extra::CONTEXT_ES2_PROFILE_BIT_EXT as libc::c_int);
} else { } else {
return Err(CreationError::NotSupported); return Err(CreationError::OpenGlVersionNotSupported);
} }
attributes.push(gl::wgl_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int); attributes.push(gl::wgl_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int);
@ -243,7 +243,7 @@ unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'st
attributes.push(gl::wgl_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int); attributes.push(gl::wgl_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int);
attributes.push(minor as libc::c_int); attributes.push(minor as libc::c_int);
}, },
GlRequest::Specific(_, _) => return Err(CreationError::NotSupported), GlRequest::Specific(_, _) => return Err(CreationError::OpenGlVersionNotSupported),
GlRequest::GlThenGles { opengl_version: (major, minor), .. } => { GlRequest::GlThenGles { opengl_version: (major, minor), .. } => {
attributes.push(gl::wgl_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int); attributes.push(gl::wgl_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int);
attributes.push(major as libc::c_int); attributes.push(major as libc::c_int);
@ -290,7 +290,7 @@ unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'st
} else { } else {
match builder.gl_robustness { match builder.gl_robustness {
Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => { Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => {
return Err(CreationError::NotSupported); return Err(CreationError::RobustnessNotSupported);
}, },
_ => () _ => ()
} }
@ -573,5 +573,5 @@ fn choose_dummy_pixel_format<I>(iter: I) -> Result<libc::c_int, CreationError>
} }
} }
backup_id.ok_or(CreationError::NotSupported) backup_id.ok_or(CreationError::OsError("No available pixel format".to_string()))
} }

12
src/lib.rs
View file

@ -108,7 +108,11 @@ pub trait GlContext {
#[derive(Clone, Debug, PartialEq, Eq)] #[derive(Clone, Debug, PartialEq, Eq)]
pub enum CreationError { pub enum CreationError {
OsError(String), OsError(String),
/// TODO: remove this error
NotSupported, NotSupported,
RobustnessNotSupported,
OpenGlVersionNotSupported,
NoAvailablePixelFormat,
} }
impl CreationError { impl CreationError {
@ -116,6 +120,12 @@ impl CreationError {
match *self { match *self {
CreationError::OsError(ref text) => &text, CreationError::OsError(ref text) => &text,
CreationError::NotSupported => "Some of the requested attributes are not supported", CreationError::NotSupported => "Some of the requested attributes are not supported",
CreationError::RobustnessNotSupported => "Your requested robustness, but it is \
not supported.",
CreationError::OpenGlVersionNotSupported => "The requested OpenGL version is not \
supported.",
CreationError::NoAvailablePixelFormat => "Couldn't find any pixel format that matches \
the criterias.",
} }
} }
} }
@ -465,7 +475,7 @@ impl<'a> BuilderAttribs<'a> {
} }
current_result.or(current_software_result) current_result.or(current_software_result)
.ok_or(CreationError::NotSupported) .ok_or(CreationError::NoAvailablePixelFormat)
} }
} }