Struct rutabaga_gfx::rutabaga_gralloc::gralloc::RutabagaGralloc

pub struct RutabagaGralloc {
    grallocs: BTreeMap<GrallocBackend, Box<dyn Gralloc>>,
}

A container for a variety of allocation backends.

Fields

grallocs: BTreeMap<GrallocBackend, Box<dyn Gralloc>>

Implementations

impl RutabagaGralloc

pub fn new( flags: RutabagaGrallocBackendFlags ) -> RutabagaResult<RutabagaGralloc>

Returns a new RutabagaGralloc instance upon success. All allocation backends that have been built are initialized. The default system allocator is always initialized.

pub fn supports_external_gpu_memory(&self) -> bool

Returns true if one of the allocation backends supports GPU external memory.

pub fn supports_dmabuf(&self) -> bool

Returns true if one of the allocation backends supports dma_buf.

fn determine_optimal_backend( &self, _info: ImageAllocationInfo ) -> GrallocBackend

Returns the best allocation backend to service a particular request.

pub fn get_image_memory_requirements( &mut self, info: ImageAllocationInfo ) -> RutabagaResult<ImageMemoryRequirements>

Returns a image memory requirements for the given info upon success.

pub fn allocate_memory( &mut self, reqs: ImageMemoryRequirements ) -> RutabagaResult<RutabagaHandle>

Allocates memory given the particular reqs upon success.

pub fn import_and_map( &mut self, handle: RutabagaHandle, vulkan_info: VulkanInfo, size: u64 ) -> RutabagaResult<Box<dyn MappedRegion>>

Imports the handle using the given vulkan_info. Returns a mapping using Vulkano upon success. Should not be used with minigbm or system gralloc backends.