Struct librashader_runtime_gl::FilterChainGL

pub struct FilterChainGL { /* private fields */ }

An OpenGL filter chain.

Implementations

impl FilterChainGL

pub unsafe fn load_from_preset( preset: ShaderPreset, options: Option<&FilterChainOptionsGL> ) -> Result<Self>

Load a filter chain from a pre-parsed ShaderPreset.

pub unsafe fn load_from_path( path: impl AsRef<Path>, options: Option<&FilterChainOptionsGL> ) -> Result<Self>

Load the shader preset at the given path into a filter chain.

pub unsafe fn frame( &mut self, input: &GLImage, viewport: &Viewport<'_, &GLFramebuffer>, frame_count: usize, options: Option<&FrameOptionsGL> ) -> Result<()>

Process a frame with the input image.

When this frame returns, GL_FRAMEBUFFER is bound to 0 if not using Direct State Access. Otherwise, it is untouched.

Trait Implementations

impl FilterChainParameters for FilterChainGL

fn get_enabled_pass_count(&self) -> usize

Gets the number of shader passes enabled at runtime.

fn set_enabled_pass_count(&mut self, count: usize)

Sets the number of shader passes enabled at runtime.

fn enumerate_parameters(&self) -> Iter<'_, String, f32>

Enumerates the active parameters as well as their values in the current filter chain.

fn get_parameter(&self, parameter: &str) -> Option<f32>

Get the value of the given parameter if present.

fn set_parameter(&mut self, parameter: &str, new_value: f32) -> Option<f32>

Set the value of the given parameter if present.