Struct Program

pub struct Program { /* private fields */ }

A PICA200 shader program. It may have one or both of:

• A vertex shader Library
• A geometry shader Library

The PICA200 does not support user-programmable fragment shaders.

Implementations

impl Program

pub fn new(vertex_shader: Entrypoint) -> Result<Self, Error>

Create a new shader program from a vertex shader.

Errors

Returns an error if:

• the shader program cannot be initialized
• the input shader is not a vertex shader or is otherwise invalid

pub fn set_geometry_shader( &mut self, geometry_shader: Entrypoint, stride: u8, ) -> Result<(), Error>

Set the geometry shader for a given program.

Errors

Returns an error if the input shader is not a geometry shader or is otherwise invalid.

pub fn get_vertex_uniform(&self, name: &str) -> Result<Index>

Get the index of a uniform in the vertex shader by name.

Errors

• If the given name contains a null byte
• If a uniform with the given name could not be found

pub fn get_geometry_uniform(&self, name: &str) -> Result<Index>

Get the index of a uniform in the geometry shader by name.

Errors

• If a geometry shader has not been set
• If the given name contains a null byte
• If a uniform with the given name could not be found

Trait Implementations

impl Drop for Program

fn drop(&mut self)

Executes the destructor for this type.