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-rw-r--r--src/api/osmesa/mod.rs22
1 files changed, 18 insertions, 4 deletions
diff --git a/src/api/osmesa/mod.rs b/src/api/osmesa/mod.rs
index 61eebc1..22df72a 100644
--- a/src/api/osmesa/mod.rs
+++ b/src/api/osmesa/mod.rs
@@ -1,11 +1,10 @@
-#![cfg(all(any(target_os = "linux", target_os = "freebsd"), feature="headless"))]
+#![cfg(any(target_os = "linux", target_os = "freebsd"))]
extern crate osmesa_sys;
use Api;
use BuilderAttribs;
use CreationError;
-use CreationError::OsError;
use GlContext;
use PixelFormat;
use libc;
@@ -19,8 +18,23 @@ pub struct OsMesaContext {
height: u32,
}
+pub enum OsMesaCreationError {
+ CreationError(CreationError),
+ NotSupported,
+}
+
+impl From<CreationError> for OsMesaCreationError {
+ fn from(e: CreationError) -> OsMesaCreationError {
+ OsMesaCreationError::CreationError(e)
+ }
+}
+
impl OsMesaContext {
- pub fn new(builder: BuilderAttribs) -> Result<OsMesaContext, CreationError> {
+ pub fn new(builder: BuilderAttribs) -> Result<OsMesaContext, OsMesaCreationError> {
+ if let Err(_) = osmesa_sys::OsMesa::try_loading() {
+ return Err(OsMesaCreationError::NotSupported);
+ }
+
let dimensions = builder.dimensions.unwrap();
Ok(OsMesaContext {
@@ -31,7 +45,7 @@ impl OsMesaContext {
context: unsafe {
let ctxt = osmesa_sys::OSMesaCreateContext(0x1908, ptr::null_mut());
if ctxt.is_null() {
- return Err(OsError("OSMesaCreateContext failed".to_string()));
+ return Err(CreationError::OsError("OSMesaCreateContext failed".to_string()).into());
}
ctxt
}