Module smithay::backend::allocator

Buffer allocation and management.

Collection of common traits and implementations around buffer creation and handling from various sources.

Allocators provided:

• Dumb Buffers through crate::backend::drm::DrmDevice
• Gbm Buffers through ::gbm::Device

Buffer types supported:

• DumbBuffers
• GbmBuffers
• DmaBufs

Helpers:

• Swapchain to help with buffer management for framebuffers

Modules

• dmabuf
  Module for dmabuf buffers.
• dumbbackend_drm
  Module for DumbBuffer buffers
• format
  Format info tables for DRM formats.
• gbmbackend_gbm
  Module for Buffers created using libgbm.
• vulkanbackend_vulkan
  Module for Buffers created using Vulkan.

Structs

• Format
• Slot
  Slot of a swapchain containing an allocated buffer and its userdata.
• Swapchain
  Swapchain handling a fixed set of re-usable buffers e.g. for scan-out.
• UnrecognizedFourcc
  Wraps some u32 that isn’t a DRM fourcc we recognize
• UnrecognizedVendor
  Wraps some u8 that isn’t a DRM vendor we recognize

Enums

• Fourcc
• Modifier
• Vendor

Traits

• Allocator
  Interface to create Buffers
• Buffer
  Common trait describing common properties of most types of buffers.