diff options
Diffstat (limited to 'src/api/egl')
| -rw-r--r-- | src/api/egl/mod.rs | 73 |
1 files changed, 53 insertions, 20 deletions
diff --git a/src/api/egl/mod.rs b/src/api/egl/mod.rs index 07c70b0..1a6cc06 100644 --- a/src/api/egl/mod.rs +++ b/src/api/egl/mod.rs @@ -349,7 +349,7 @@ unsafe fn create_context(egl: &ffi::egl::Egl, display: ffi::egl::types::EGLDispl format!("") }; - let mut context_attributes = vec![]; + let mut context_attributes = Vec::with_capacity(10); let mut flags = 0; if egl_version >= &(1, 5) || @@ -361,30 +361,62 @@ unsafe fn create_context(egl: &ffi::egl::Egl, display: ffi::egl::types::EGLDispl context_attributes.push(ffi::egl::CONTEXT_MINOR_VERSION as i32); context_attributes.push(version.1 as i32); - if egl_version >= &(1, 5) || - extensions.contains("EGL_EXT_create_context_robustness ") || - extensions.ends_with("EGL_EXT_create_context_robustness") - { - match gl_robustness { - Robustness::RobustNoResetNotification | Robustness::TryRobustNoResetNotification => { - context_attributes.push(ffi::egl::CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY as libc::c_int); + // handling robustness + let supports_robustness = egl_version >= &(1, 5) || + extensions.contains("EGL_EXT_create_context_robustness ") || + extensions.ends_with("EGL_EXT_create_context_robustness"); + + match gl_robustness { + Robustness::NotRobust => (), + + Robustness::NoError => { + if extensions.contains("EGL_KHR_create_context_no_error ") || + extensions.ends_with("EGL_KHR_create_context_no_error") + { + context_attributes.push(ffi::egl::CONTEXT_OPENGL_NO_ERROR_KHR as libc::c_int); + context_attributes.push(1); + } + }, + + Robustness::RobustNoResetNotification => { + if supports_robustness { + context_attributes.push(ffi::egl::CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY + 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; - }, - Robustness::RobustLoseContextOnReset | Robustness::TryRobustLoseContextOnReset => { - context_attributes.push(ffi::egl::CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY as libc::c_int); + } else { + return Err(CreationError::NotSupported); + } + }, + + Robustness::TryRobustNoResetNotification => { + if supports_robustness { + context_attributes.push(ffi::egl::CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY + 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; + } + }, + + Robustness::RobustLoseContextOnReset => { + if supports_robustness { + context_attributes.push(ffi::egl::CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY + 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; - }, - Robustness::NotRobust => () - } - } else { - match gl_robustness { - Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => { + } else { return Err(CreationError::NotSupported); - }, - _ => () - } + } + }, + + Robustness::TryRobustLoseContextOnReset => { + if supports_robustness { + context_attributes.push(ffi::egl::CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY + 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; + } + }, } if gl_debug { @@ -400,6 +432,7 @@ unsafe fn create_context(egl: &ffi::egl::Egl, display: ffi::egl::types::EGLDispl context_attributes.push(flags); } else if egl_version >= &(1, 3) && api == Api::OpenGlEs { + // robustness is not supported match gl_robustness { Robustness::RobustNoResetNotification | Robustness::RobustLoseContextOnReset => { return Err(CreationError::NotSupported); |