Trait BackendContext 

pub trait BackendContext: Send + Sync {
    // Required methods
    fn create_buffer(&mut self, size: usize, usage: BufferUsage) -> BufferHandle;
    fn create_texture(
        &mut self,
        width: u32,
        height: u32,
        format: TextureFormat,
    ) -> TextureHandle;
    fn create_shader(
        &mut self,
        source: &str,
        stage: ShaderStage,
    ) -> ShaderHandle;
    fn create_pipeline(
        &mut self,
        vertex: ShaderHandle,
        fragment: ShaderHandle,
        layout: &PipelineLayout,
    ) -> PipelineHandle;
    fn create_compute_pipeline(
        &mut self,
        shader: ShaderHandle,
        layout: &PipelineLayout,
    ) -> ComputePipelineHandle;
    fn submit(&mut self, commands: &[GpuCommand]);
    fn present(&mut self);
    fn write_buffer(&mut self, buffer: BufferHandle, data: &[u8]);
    fn read_buffer(&self, buffer: BufferHandle) -> Vec<u8> ;
    fn write_texture(&mut self, texture: TextureHandle, data: &[u8]);
    fn read_texture(&self, texture: TextureHandle) -> Vec<u8> ;
    fn destroy_buffer(&mut self, buffer: BufferHandle);
    fn destroy_texture(&mut self, texture: TextureHandle);
    fn name(&self) -> &str;
}

Trait that every concrete GPU backend must implement.

Required Methods

fn create_buffer(&mut self, size: usize, usage: BufferUsage) -> BufferHandle

Create a GPU buffer and return its handle.

fn create_texture( &mut self, width: u32, height: u32, format: TextureFormat, ) -> TextureHandle

Create a 2-D texture.

fn create_shader(&mut self, source: &str, stage: ShaderStage) -> ShaderHandle

Compile / upload a shader module.

fn create_pipeline( &mut self, vertex: ShaderHandle, fragment: ShaderHandle, layout: &PipelineLayout, ) -> PipelineHandle

Create a render pipeline (vertex + fragment).

fn create_compute_pipeline( &mut self, shader: ShaderHandle, layout: &PipelineLayout, ) -> ComputePipelineHandle

Create a compute pipeline.

fn submit(&mut self, commands: &[GpuCommand])

Submit a batch of GPU commands.

fn present(&mut self)

Present the current frame to screen.

fn write_buffer(&mut self, buffer: BufferHandle, data: &[u8])

Write raw data into a buffer.

fn read_buffer(&self, buffer: BufferHandle) -> Vec<u8>

Read raw data back from a buffer.

fn write_texture(&mut self, texture: TextureHandle, data: &[u8])

Write raw pixel data into a texture.

fn read_texture(&self, texture: TextureHandle) -> Vec<u8>

Read raw pixel data from a texture.

fn destroy_buffer(&mut self, buffer: BufferHandle)

Destroy a buffer, freeing its resources.

fn destroy_texture(&mut self, texture: TextureHandle)

Destroy a texture, freeing its resources.

fn name(&self) -> &str

Name of this backend, for logging.

Implementors

impl BackendContext for OpenGLContext

impl BackendContext for SoftwareContext