Struct librashader_runtime_vk::FilterChainVulkan

pub struct FilterChainVulkan { /* private fields */ }

A Vulkan filter chain.

Implementations

impl FilterChainVulkan

pub fn load_from_path(
vulkan: impl TryInto<VulkanObjects, Error = FilterChainError>,
path: impl AsRef<Path>,
options: Option<&FilterChainOptionsVulkan>
) -> Result<FilterChainVulkan>

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

pub fn load_from_preset(
vulkan: impl TryInto<VulkanObjects, Error = FilterChainError>,
preset: ShaderPreset,
options: Option<&FilterChainOptionsVulkan>
) -> Result<FilterChainVulkan>

Load a filter chain from a pre-parsed ShaderPreset.

pub fn push_history(
&mut self,
input: &VulkanImage,
cmd: CommandBuffer,
count: usize
) -> Result<()>

pub fn frame(
&mut self,
input: &VulkanImage,
viewport: &Viewport<'_, VulkanImage>,
cmd: CommandBuffer,
count: usize,
options: Option<&FrameOptionsVulkan>
) -> Result<()>

Records shader rendering commands to the provided command buffer.

• The input image must be in the VK_SHADER_READ_ONLY_OPTIMAL layout.
• The output image must be in VK_COLOR_ATTACHMENT_OPTIMAL layout.

librashader will not create a pipeline barrier for the final pass. The output image will remain in VK_COLOR_ATTACHMENT_OPTIMAL after all shader passes. The caller must transition the output image to the final layout.

Trait Implementations

impl FilterChainParameters for FilterChainVulkan

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.