Struct SoftwareRenderingContext

pub struct SoftwareRenderingContext {
    size: Cell<PhysicalSize<u32>>,
    surfman_rendering_info: SurfmanRenderingContext,
    swap_chain: SwapChain<Device<Device<Device, Device>, Device>>,
}

A software rendering context that uses a software OpenGL implementation to render Servo. This will generally have bad performance, but can be used in situations where it is more convenient to have consistent, but slower display output.

The results of the render can be accessed via RenderingContext::read_to_image.

Fields

size: Cell<PhysicalSize<u32>>

surfman_rendering_info: SurfmanRenderingContext

swap_chain: SwapChain<Device<Device<Device, Device>, Device>>

Implementations

impl SoftwareRenderingContext

pub fn new(size: PhysicalSize<u32>) -> Result<SoftwareRenderingContext, Error>

Trait Implementations

impl Drop for SoftwareRenderingContext

fn drop(&mut self)

Executes the destructor for this type.

impl RenderingContext for SoftwareRenderingContext

fn prepare_for_rendering(&self)

Prepare this RenderingContext to be rendered upon by Servo. For instance, by binding a framebuffer to the current OpenGL context.

fn read_to_image( &self, source_rectangle: Box2D<i32, DevicePixel>, ) -> Option<ImageBuffer<Rgba<u8>, Vec<u8>>>

Read the contents of this [Renderingcontext] into an in-memory image. If the image cannot be read (for instance, if no rendering has taken place yet), then None is returned.

fn size(&self) -> PhysicalSize<u32>

Get the current size of this RenderingContext.

fn resize(&self, size: PhysicalSize<u32>)

Resizes the rendering surface to the given size.

fn present(&self)

Presents the rendered frame to the screen. In a double-buffered context, this would swap buffers.

fn make_current(&self) -> Result<(), Error>

Makes the context the current OpenGL context for this thread. After calling this function, it is valid to use OpenGL rendering commands.

fn gleam_gl_api(&self) -> Rc<dyn Gl>

Returns the gleam version of the OpenGL or GLES API.

fn glow_gl_api(&self) -> Arc<Context>

Returns the OpenGL or GLES API.

fn create_texture( &self, surface: Surface<Device<Device, Device>, Device>, ) -> Option<(SurfaceTexture<Device<Device, Device>, Device>, u32, Size2D<i32, UnknownUnit>)>

Creates a texture from a given surface and returns the surface texture, the OpenGL texture object, and the size of the surface. Default to None.

fn destroy_texture( &self, surface_texture: SurfaceTexture<Device<Device, Device>, Device>, ) -> Option<Surface<Device<Device, Device>, Device>>

Destroys the texture and returns the surface. Default to None.

fn connection(&self) -> Option<Connection<Device<Device, Device>, Device>>

The connection to the display server for WebGL. Default to None.

fn size2d(&self) -> Size2D<u32, DevicePixel>

Get the current size of this RenderingContext as Size2D.