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// Copyright (C) 2019 Oscar Shrimpton
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
// You should have received a copy of the GNU General Public License along
// with this program. If not, see <http://www.gnu.org/licenses/>.
//! Error types
/// An error encountered creating a rendering context.
/// Falls into 3 main types:
/// - Hardware - No suitable card usually
/// - Sanity - Things that probably aren't true, likely indicating a deeper issue.
/// These aren't guaranteed sanity issues, but they are weird issues.
/// - Runtime - Things caused by runtime conditions, usually resource constraints.
/// You can use the associated methods to get the group of one, which may be helpful for error reporting, etc.
#[derive(Debug, Clone)]
pub enum CreationError {
/// # Hardware
NoAdapter,
NoQueueFamily,
NoPhysicalDevice,
/// # Sanity
NoQueueGroup,
NoCommandQueues,
NoPresentModes,
NoCompositeAlphas,
NoImageFormats,
NoColor,
NoWindow,
/// # Runtime
SwapchainFailed (hal::window::CreationError),
RenderPassFailed (hal::device::OutOfMemory),
CommandPoolFailed (hal::device::OutOfMemory),
SemaphoreFailed (hal::device::OutOfMemory),
FenceFailed (hal::device::OutOfMemory),
ImageViewFailed (hal::image::ViewError),
FramebufferFailed (hal::device::OutOfMemory)
}
impl CreationError {
/// Check if the error is (likely) a hardware error
pub fn is_hardware(&self) -> bool {
use self::CreationError::*;
match &self {
NoAdapter | NoQueueFamily | NoPhysicalDevice => true,
_ => false
}
}
/// Check if the error is (possibly) a sanity error.
pub fn is_sanity(&self) -> bool {
use self::CreationError::*;
match &self {
NoQueueGroup | NoCommandQueues | NoPresentModes |
NoCompositeAlphas | NoImageFormats | NoColor
=> true,
_ => false
}
}
/// Check if the error is (likely) a runtime error.
pub fn is_runtime(&self) -> bool {
use self::CreationError::*;
match &self {
SwapchainFailed(_) | RenderPassFailed(_) |
CommandPoolFailed(_) | SemaphoreFailed(_) |
FenceFailed(_) | ImageViewFailed(_) |
FramebufferFailed(_) => true,
_ => false
}
}
}
/// An error encountered when rendering.
/// Usually this is out of memory or something happened to the device/surface.
/// You'll likely need to exit or create a new context.
#[derive(Debug, Clone)]
pub enum FrameError {
/// Error getting the image from the swapchain
AcquisitionError (hal::window::AcquireError),
/// Error waiting on the frame_presented fence.
FenceWaitError (hal::device::OomOrDeviceLost),
/// Error resetting the frame_presented fence.
FenceResetError (hal::device::OutOfMemory),
/// Error presenting the rendered frame.
PresentError (hal::window::PresentError)
}
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