forked from 1b-agent/fieldcraft-upstream
jyvikoandClaude Opus 5.5
c9163e98ad
render::draw_labels draws a scene's labels over finished pixels in the CPU rasterizer's font. capture::shared opens the process's device once by the FIELDCRAFT_GPU policy; capture::png draws on it or on the CPU and reports which (Renderer). Refs #422 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UhhZMBTviDQxZvwnyP89fo
73 lines
2.1 KiB
Rust
73 lines
2.1 KiB
Rust
//! FieldCraft on the GPU without a window toolkit: the viewport's pipelines ([`view`]), the
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//! choice of adapter ([`select`]) and offscreen pictures drawn with them ([`capture`]). The
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//! desktop viewport draws through [`view`] in its paint callback; `fieldcraft-cli snapshot` draws
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//! through [`capture`], so a headless picture is the one the window draws.
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#![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic, clippy::unimplemented, clippy::todo, clippy::unreachable)]
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#![forbid(unsafe_code)]
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#[cfg(not(target_arch = "wasm32"))]
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pub mod capture;
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#[cfg(not(target_arch = "wasm32"))]
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pub mod select;
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pub mod view;
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pub use wgpu;
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/// What can go wrong on the GPU. Never a panic: device errors are caught in error scopes.
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#[derive(Debug, Clone, PartialEq, thiserror::Error)]
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pub enum GpuError {
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#[error("{0}")]
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NoAdapter(String),
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#[error("FIELDCRAFT_GPU must be auto, hardware, software or cpu, not `{0}`")]
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Policy(String),
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#[error("the GPU device could not be opened: {0}")]
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Device(String),
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#[error("{0}")]
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Size(String),
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#[error("the GPU picture failed: {0}")]
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Failed(String),
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}
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pub type Result<T> = std::result::Result<T, GpuError>;
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/// The kind of device a picture was drawn on.
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#[derive(Clone, Copy, Debug, PartialEq, Eq)]
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pub enum Tier {
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Hardware,
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Software,
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}
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impl Tier {
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pub fn label(self) -> &'static str {
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match self {
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Tier::Hardware => "hardware GPU",
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Tier::Software => "software GPU",
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}
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}
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}
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/// What drew a picture.
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#[derive(Clone, Debug, PartialEq)]
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pub enum Renderer {
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Gpu {
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adapter: String,
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tier: Tier,
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samples: u32,
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},
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/// The CPU rasterizer, and why when a GPU was wanted (`auto` with no usable GPU).
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Cpu {
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why: Option<String>,
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},
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}
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impl Renderer {
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/// `"hardware"`, `"software"` or `"cpu"`.
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pub fn kind(&self) -> &'static str {
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match self {
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Renderer::Gpu { tier: Tier::Hardware, .. } => "hardware",
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Renderer::Gpu { tier: Tier::Software, .. } => "software",
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Renderer::Cpu { .. } => "cpu",
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}
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}
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}
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