diff options
Diffstat (limited to 'stockton-render/src/draw/target.rs')
| -rw-r--r-- | stockton-render/src/draw/target.rs | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/stockton-render/src/draw/target.rs b/stockton-render/src/draw/target.rs index 02a7f84..2183a90 100644 --- a/stockton-render/src/draw/target.rs +++ b/stockton-render/src/draw/target.rs @@ -31,8 +31,11 @@ use hal::{ use na::Mat4; use super::{ - buffer::ModifiableBuffer, draw_buffers::{DrawBuffers, UVPoint}, pipeline::CompletePipeline, - texture::image::DedicatedLoadedImage, ui::{UIPipeline, UIPoint}, + buffer::ModifiableBuffer, + draw_buffers::{DrawBuffers, UVPoint}, + pipeline::CompletePipeline, + texture::image::DedicatedLoadedImage, + ui::{UIPipeline, UIPoint}, }; use crate::types::*; @@ -53,8 +56,18 @@ pub struct SwapchainProperties { pub extent: Extent, } +/// Indicates the given property has no acceptable values +pub enum NoSupportedValuesError { + DepthFormat, + PresentMode, + CompositeAlphaMode, +} + impl SwapchainProperties { - pub fn find_best(adapter: &Adapter, surface: &Surface) -> Result<SwapchainProperties, ()> { + pub fn find_best( + adapter: &Adapter, + surface: &Surface, + ) -> Result<SwapchainProperties, NoSupportedValuesError> { let caps = surface.capabilities(&adapter.physical_device); let formats = surface.supported_formats(&adapter.physical_device); @@ -83,7 +96,7 @@ impl SwapchainProperties { .optimal_tiling .contains(ImageFeature::DEPTH_STENCIL_ATTACHMENT) }) - .ok_or(())?; + .ok_or(NoSupportedValuesError::DepthFormat)?; let present_mode = { [ @@ -95,7 +108,7 @@ impl SwapchainProperties { .iter() .cloned() .find(|pm| caps.present_modes.contains(*pm)) - .ok_or(())? + .ok_or(NoSupportedValuesError::PresentMode)? }; let composite_alpha_mode = { [ @@ -107,7 +120,7 @@ impl SwapchainProperties { .iter() .cloned() .find(|ca| caps.composite_alpha_modes.contains(*ca)) - .ok_or(())? + .ok_or(NoSupportedValuesError::CompositeAlphaMode)? }; let extent = caps.extents.end().to_extent(); // Size |