pub struct TextShaderProgram {
    program: ShaderProgram,
    u_projection: c_int,
    u_rendering_pass: c_int,
}

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§program: ShaderProgram

Shader program.

§u_projection: c_int

Projection scale and offset uniform.

§u_rendering_pass: c_int

Rendering pass.

For dual source blending, there are 2 passes; one for background, another for text, similar to the GLSL3 renderer.

If GL_EXT_blend_func_extended is not available, the rendering is split into 4 passes. One is used for the background and the rest to perform subpixel text rendering according to https://github.com/servo/webrender/blob/master/webrender/doc/text-rendering.md.

Rendering is split into three passes.

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impl TextShaderProgram

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pub fn new( shader_version: ShaderVersion, dual_source_blending: bool ) -> Result<Self, Error>

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fn set_rendering_pass(&self, rendering_pass: RenderingPass)

Trait Implementations§

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impl Debug for TextShaderProgram

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

Formats the value using the given formatter. Read more
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impl TextShader for TextShaderProgram

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fn id(&self) -> c_uint

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fn projection_uniform(&self) -> c_int

Id of the projection uniform.

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.