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Add some docs

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This commit is contained in:
Pierre Krieger 2016-02-22 09:04:06 +01:00
parent 629f839f6b
commit 3a0eebc78b
1 changed files with 30 additions and 2 deletions
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32
vulkano/src/framebuffer.rs
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@ -128,13 +128,25 @@ pub enum ClearValue {
DepthStencil((f32, u32)),
}
/// Describes an attachment that will be used in a renderpass.
pub struct AttachmentDescription {
/// Format of the image that is going to be binded.
pub format: Format,
/// Number of samples of the image that is going to be binded.
pub samples: u32,
/// What the implementation should do with that attachment at the start of the renderpass.
pub load: LoadOp,
/// What the implementation should do with that attachment at the end of the renderpass.
pub store: StoreOp,
/// Layout that the image is going to be in at the start of the renderpass.
///
/// The vulkano library will automatically switch to the correct layout if necessary, but it
/// is more optimal to set this to the correct value.
pub initial_layout: ImageLayout,
/// Layout that the image will be transitionned to at the end of the renderpass.
pub final_layout: ImageLayout,
}
@ -147,29 +159,45 @@ impl AttachmentDescription {
}
}
/// Describes one of the passes of a renderpass.
pub struct PassDescription {
/// Indices of attachments to use as color attachments.
/// Indices and layouts of attachments to use as color attachments.
pub color_attachments: Vec<(usize, ImageLayout)>, // TODO: Vec is slow
/// Index and layout of the attachment to use as depth-stencil attachment.
pub depth_stencil: Option<(usize, ImageLayout)>,
/// Indices of attachments to use as input attachments.
/// Indices and layouts of attachments to use as input attachments.
pub input_attachments: Vec<(usize, ImageLayout)>, // TODO: Vec is slow
/// If not empty, each color attachment will be resolved into each corresponding entry of
/// this list.
///
/// If this value is not empty, it **must** be the same length as `color_attachments`.
pub resolve_attachments: Vec<(usize, ImageLayout)>, // TODO: Vec is slow
/// Indices of attachments that will be preserved during this pass.
pub preserve_attachments: Vec<usize>, // TODO: Vec is slow
}
/// Describes a dependency between two passes of a renderpass.
///
/// The implementation is allowed to change the order of the passes within a renderpass, unless
/// you specify that there exists a dependency between two passes (ie. the result of one will be
/// used as the input of another one).
// FIXME: finish
pub struct PassDependencyDescription {
/// Index of the subpass that writes the data that `destination_subpass` is going to use.
pub source_subpass: usize,
/// Index of the subpass that reads the data that `source_subpass` wrote.
pub destination_subpass: usize,
/*VkPipelineStageFlags srcStageMask;
VkPipelineStageFlags dstStageMask;
VkAccessFlags srcAccessMask;
VkAccessFlags dstAccessMask;*/
pub by_region: bool,
}