Enum DrawTarget 

pub enum DrawTarget {
    Default {
        rect: FramebufferIntRect,
        total_size: FramebufferIntSize,
        surface_origin_is_top_left: bool,
    },
    Texture {
        dimensions: DeviceIntSize,
        with_depth: bool,
        fbo_id: FBOId,
        id: GLuint,
        target: GLuint,
    },
    External {
        fbo: FBOId,
        size: FramebufferIntSize,
    },
    NativeSurface {
        offset: DeviceIntPoint,
        external_fbo_id: u32,
        dimensions: DeviceIntSize,
    },
}

Contains the parameters necessary to bind a draw target.

Variants

Default

Use the device’s default draw target, with the provided dimensions, which are used to set the viewport.

Fields

rect: FramebufferIntRect

Target rectangle to draw.

total_size: FramebufferIntSize

Total size of the target.

surface_origin_is_top_left: bool

Texture

Use the provided texture.

Fields

dimensions: DeviceIntSize

Size of the texture in pixels

with_depth: bool

Whether to draw with the texture’s associated depth target

fbo_id: FBOId

FBO that corresponds to the selected layer / depth mode

id: GLuint

Native GL texture ID

target: GLuint

Native GL texture target

External

Use an FBO attached to an external texture.

Fields

fbo: FBOId

size: FramebufferIntSize

NativeSurface

An OS compositor surface

Fields

offset: DeviceIntPoint

external_fbo_id: u32

dimensions: DeviceIntSize

Implementations

impl DrawTarget

pub fn new_default( size: DeviceIntSize, surface_origin_is_top_left: bool, ) -> Self

pub fn is_default(&self) -> bool

Returns true if this draw target corresponds to the default framebuffer.

pub fn from_texture(texture: &Texture, with_depth: bool) -> Self

pub fn dimensions(&self) -> DeviceIntSize

Returns the dimensions of this draw-target.

pub fn offset(&self) -> DeviceIntPoint

pub fn to_framebuffer_rect( &self, device_rect: DeviceIntRect, ) -> FramebufferIntRect

pub fn surface_origin_is_top_left(&self) -> bool

pub fn build_scissor_rect( &self, scissor_rect: Option<DeviceIntRect>, ) -> FramebufferIntRect

Given a scissor rect, convert it to the right coordinate space depending on the draw target kind. If no scissor rect was supplied, returns a scissor rect that encloses the entire render target.

Trait Implementations

impl Clone for DrawTarget

fn clone(&self) -> DrawTarget

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DrawTarget

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<DrawTarget> for ReadTarget

fn from(t: DrawTarget) -> Self

Converts to this type from the input type.

impl Copy for DrawTarget