Struct NullRenderProvider 

pub struct NullRenderProvider { /* private fields */ }

A render provider that does nothing. Used for headless testing and as a default before a real renderer is configured.

Implementations

impl NullRenderProvider

pub fn new() -> Self

Create a new null render provider.

Trait Implementations

impl Default for NullRenderProvider

fn default() -> Self

Returns the “default value” for a type.

impl Provider for NullRenderProvider

fn name(&self) -> &str

Returns the human-readable name of this provider (e.g., “OpenGL”).

fn version(&self) -> &str

Returns the version string of this provider implementation.

fn capabilities(&self) -> Box<dyn Any>

Returns provider capabilities as a type-erased Any value.

impl ProviderLifecycle for NullRenderProvider

fn init(&mut self) -> GoudResult<()>

Initialize the provider. Called once during engine startup.

fn update(&mut self, _delta: f32) -> GoudResult<()>

Per-frame update. Called once per frame for providers that need it (e.g., physics stepping, audio streaming).

fn shutdown(&mut self)

Shut down the provider. Called once during engine teardown.

impl RenderProvider for NullRenderProvider

fn render_capabilities(&self) -> &RenderCapabilities

Returns the typed render capabilities for this provider.

fn begin_frame(&mut self) -> GoudResult<FrameContext>

Begin a new frame. Returns an opaque token consumed by end_frame.

fn end_frame(&mut self, _frame: FrameContext) -> GoudResult<()>

End the current frame and present. Consumes the frame token.

fn resize(&mut self, _width: u32, _height: u32) -> GoudResult<()>

Handle window/surface resize.

fn create_texture(&mut self, _desc: &TextureDesc) -> GoudResult<TextureHandle>

Create a texture from a descriptor.

fn destroy_texture(&mut self, _handle: TextureHandle)

Destroy a previously created texture.

fn create_buffer(&mut self, _desc: &BufferDesc) -> GoudResult<BufferHandle>

Create a GPU buffer from a descriptor.

fn destroy_buffer(&mut self, _handle: BufferHandle)

Destroy a previously created buffer.

fn create_shader(&mut self, _desc: &ShaderDesc) -> GoudResult<ShaderHandle>

Compile and create a shader from a descriptor.

fn destroy_shader(&mut self, _handle: ShaderHandle)

Destroy a previously created shader.

fn create_pipeline( &mut self, _desc: &PipelineDesc, ) -> GoudResult<PipelineHandle>

Create a render pipeline from a descriptor.

fn destroy_pipeline(&mut self, _handle: PipelineHandle)

Destroy a previously created pipeline.

fn create_render_target( &mut self, _desc: &RenderTargetDesc, ) -> GoudResult<RenderTargetHandle>

Create a render target (framebuffer) from a descriptor.

fn destroy_render_target(&mut self, _handle: RenderTargetHandle)

Destroy a previously created render target.

fn draw(&mut self, _cmd: &DrawCommand) -> GoudResult<()>

Submit a single draw command.

fn draw_batch(&mut self, _cmds: &[DrawCommand]) -> GoudResult<()>

Submit a batch of draw commands.

fn draw_mesh(&mut self, _cmd: &MeshDrawCommand) -> GoudResult<()>

Submit a 3D mesh draw command.

fn draw_text(&mut self, _cmd: &TextDrawCommand) -> GoudResult<()>

Submit a text draw command.

fn draw_particles(&mut self, _cmd: &ParticleDrawCommand) -> GoudResult<()>

Submit a particle system draw command.

fn set_viewport(&mut self, _x: i32, _y: i32, _width: u32, _height: u32)

Set the viewport rectangle.

fn set_camera(&mut self, _camera: &CameraData)

Set the active camera data (view + projection matrices).

fn set_render_target(&mut self, _handle: Option<RenderTargetHandle>)

Set the active render target. None renders to the default framebuffer.

fn clear(&mut self, _color: [f32; 4])

Clear the current render target with the given color [r, g, b, a].