librashader/librashader-capi/src/ctypes.rs
2024-02-14 20:50:17 -05:00

201 lines
6.4 KiB
Rust

//! Binding types for the librashader C API.
use crate::error::LibrashaderError;
use librashader::presets::context::{Orientation, VideoDriver, WildcardContext};
use librashader::presets::ShaderPreset;
use std::mem::MaybeUninit;
use std::ptr::NonNull;
/// A handle to a shader preset object.
pub type libra_shader_preset_t = Option<NonNull<ShaderPreset>>;
/// A handle to a preset wildcard context object.
pub type libra_preset_ctx_t = Option<NonNull<WildcardContext>>;
/// A handle to a librashader error object.
pub type libra_error_t = Option<NonNull<LibrashaderError>>;
/// An enum representing orientation for use in preset contexts.
#[repr(u32)]
#[derive(Debug, Copy, Clone)]
pub enum LIBRA_PRESET_CTX_ORIENTATION {
Vertical = 0,
Horizontal,
}
impl From<LIBRA_PRESET_CTX_ORIENTATION> for Orientation {
fn from(value: LIBRA_PRESET_CTX_ORIENTATION) -> Self {
match value {
LIBRA_PRESET_CTX_ORIENTATION::Vertical => Orientation::Vertical,
LIBRA_PRESET_CTX_ORIENTATION::Horizontal => Orientation::Horizontal,
}
}
}
// An enum representing graphics runtimes (video drivers) for use in preset contexts.
#[repr(u32)]
#[derive(Debug, Copy, Clone)]
pub enum LIBRA_PRESET_CTX_RUNTIME {
None = 0,
GlCore,
Vulkan,
D3D11,
D3D12,
Metal,
}
impl From<LIBRA_PRESET_CTX_RUNTIME> for VideoDriver {
fn from(value: LIBRA_PRESET_CTX_RUNTIME) -> Self {
match value {
LIBRA_PRESET_CTX_RUNTIME::None => VideoDriver::None,
LIBRA_PRESET_CTX_RUNTIME::GlCore => VideoDriver::GlCore,
LIBRA_PRESET_CTX_RUNTIME::Vulkan => VideoDriver::Vulkan,
LIBRA_PRESET_CTX_RUNTIME::D3D11 => VideoDriver::Direct3D11,
LIBRA_PRESET_CTX_RUNTIME::D3D12 => VideoDriver::Direct3D12,
LIBRA_PRESET_CTX_RUNTIME::Metal => VideoDriver::Metal,
}
}
}
#[cfg(feature = "runtime-opengl")]
use librashader::runtime::gl::FilterChain as FilterChainGL;
/// A handle to a OpenGL filter chain.
#[cfg(feature = "runtime-opengl")]
#[doc(cfg(feature = "runtime-opengl"))]
pub type libra_gl_filter_chain_t = Option<NonNull<FilterChainGL>>;
/// A handle to a Direct3D 11 filter chain.
#[cfg(any(
feature = "__cbindgen_internal",
all(target_os = "windows", feature = "runtime-d3d11")
))]
use librashader::runtime::d3d11::FilterChain as FilterChainD3D11;
/// A handle to a Direct3D 11 filter chain.
#[doc(cfg(all(target_os = "windows", feature = "runtime-d3d11")))]
#[cfg(any(
feature = "__cbindgen_internal",
all(target_os = "windows", feature = "runtime-d3d11")
))]
pub type libra_d3d11_filter_chain_t = Option<NonNull<FilterChainD3D11>>;
#[cfg(any(
feature = "__cbindgen_internal",
all(target_os = "windows", feature = "runtime-d3d12")
))]
use librashader::runtime::d3d12::FilterChain as FilterChainD3D12;
/// A handle to a Direct3D 12 filter chain.
#[cfg(any(
feature = "__cbindgen_internal",
all(target_os = "windows", feature = "runtime-d3d12")
))]
pub type libra_d3d12_filter_chain_t = Option<NonNull<FilterChainD3D12>>;
#[cfg(feature = "runtime-vulkan")]
use librashader::runtime::vk::FilterChain as FilterChainVulkan;
/// A handle to a Vulkan filter chain.
#[cfg(feature = "runtime-vulkan")]
#[doc(cfg(feature = "runtime-vulkan"))]
pub type libra_vk_filter_chain_t = Option<NonNull<FilterChainVulkan>>;
#[cfg(all(target_os = "macos", feature = "runtime-metal"))]
use librashader::runtime::mtl::FilterChain as FilterChainMetal;
#[doc(cfg(all(target_vendor = "apple", feature = "runtime-metal")))]
#[cfg(any(
feature = "__cbindgen_internal",
all(
target_vendor = "apple",
feature = "runtime-metal",
feature = "__cbindgen_internal_objc"
)
))]
pub type libra_mtl_filter_chain_t = Option<NonNull<FilterChainMetal>>;
/// Defines the output viewport for a rendered frame.
#[repr(C)]
pub struct libra_viewport_t {
/// The x offset in the viewport framebuffer to begin rendering from.
pub x: f32,
/// The y offset in the viewport framebuffer to begin rendering from.
pub y: f32,
/// The width of the viewport framebuffer.
pub width: u32,
/// The height of the viewport framebuffer.
pub height: u32,
}
pub(crate) trait FromUninit<T>
where
Self: Sized,
{
fn from_uninit(value: MaybeUninit<Self>) -> T;
}
macro_rules! config_set_field {
($options:ident.$field:ident <- $ptr:ident) => {
$options.$field = unsafe { ::std::ptr::addr_of!((*$ptr).$field).read() };
};
}
macro_rules! config_version_set {
($version:literal => [$($field:ident),+ $(,)?] ($options:ident <- $ptr:ident)) => {
let version = unsafe { ::std::ptr::addr_of!((*$ptr).version).read() };
#[allow(unused_comparisons)]
if version >= $version {
$($crate::ctypes::config_set_field!($options.$field <- $ptr);)+
}
}
}
macro_rules! config_struct {
(impl $rust:ty => $capi:ty {$($version:literal => [$($field:ident),+ $(,)?]);+ $(;)?}) => {
impl $crate::ctypes::FromUninit<$rust> for $capi {
fn from_uninit(value: ::std::mem::MaybeUninit<Self>) -> $rust {
let ptr = value.as_ptr();
let mut options = <$rust>::default();
$(
$crate::ctypes::config_version_set!($version => [$($field),+] (options <- ptr));
)+
options
}
}
}
}
pub(crate) use config_set_field;
pub(crate) use config_struct;
pub(crate) use config_version_set;
#[doc(hidden)]
#[deny(deprecated)]
#[deprecated = "Forward declarations for cbindgen, do not use."]
mod __cbindgen_opaque_forward_declarations {
macro_rules! typedef_struct {
($($(#[$($attrss:tt)*])* $name:ident;)*) => {
$($(#[$($attrss)*])*
#[allow(unused)]
#[doc(hidden)]
#[deny(deprecated)]
#[deprecated]
pub struct $name;
)*
};
}
typedef_struct! {
/// Opaque struct for a preset context.
WildcardContext;
/// Opaque struct for a shader preset.
ShaderPreset;
/// Opaque struct for an OpenGL filter chain.
FilterChainGL;
/// Opaque struct for a Direct3D 11 filter chain.
FilterChainD3D11;
/// Opaque struct for a Direct3D 12 filter chain.
FilterChainD3D12;
/// Opaque struct for a Vulkan filter chain.
FilterChainVulkan;
/// Opaque struct for a Metal filter chain.
FilterChainMetal;
}
}