116 lines
2.9 KiB
Rust
116 lines
2.9 KiB
Rust
use std::ffi::c_void;
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use std::marker::PhantomData;
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// On X11 creating the context is a two step process
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#[cfg(not(target_os = "linux"))]
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use raw_window_handle::RawWindowHandle;
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#[cfg(target_os = "windows")]
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mod win;
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#[cfg(target_os = "windows")]
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use win as platform;
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// We need to use this directly within the X11 window creation to negotiate the correct visual
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#[cfg(target_os = "linux")]
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pub(crate) mod x11;
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#[cfg(target_os = "linux")]
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pub(crate) use self::x11 as platform;
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#[cfg(target_os = "macos")]
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mod macos;
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#[cfg(target_os = "macos")]
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use macos as platform;
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#[derive(Clone, Debug)]
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pub struct GlConfig {
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pub version: (u8, u8),
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pub profile: Profile,
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pub red_bits: u8,
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pub blue_bits: u8,
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pub green_bits: u8,
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pub alpha_bits: u8,
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pub depth_bits: u8,
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pub stencil_bits: u8,
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pub samples: Option<u8>,
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pub srgb: bool,
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pub double_buffer: bool,
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pub vsync: bool,
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}
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impl Default for GlConfig {
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fn default() -> Self {
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GlConfig {
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version: (3, 2),
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profile: Profile::Core,
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red_bits: 8,
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blue_bits: 8,
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green_bits: 8,
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alpha_bits: 8,
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depth_bits: 24,
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stencil_bits: 8,
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samples: None,
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srgb: true,
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double_buffer: true,
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vsync: false,
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}
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}
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}
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#[derive(Clone, Copy, Debug, PartialEq, Eq)]
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pub enum Profile {
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Compatibility,
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Core,
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}
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#[derive(Debug)]
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pub enum GlError {
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InvalidWindowHandle,
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VersionNotSupported,
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CreationFailed(platform::CreationFailedError),
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}
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pub struct GlContext {
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context: platform::GlContext,
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phantom: PhantomData<*mut ()>,
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}
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impl GlContext {
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#[cfg(not(target_os = "linux"))]
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pub(crate) unsafe fn create(
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parent: &RawWindowHandle, config: GlConfig,
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) -> Result<GlContext, GlError> {
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platform::GlContext::create(parent, config)
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.map(|context| GlContext { context, phantom: PhantomData })
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}
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/// The X11 version needs to be set up in a different way compared to the Windows and macOS
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/// versions. So the platform-specific versions should be used to construct the context within
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/// baseview, and then this object can be passed to the user.
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#[cfg(target_os = "linux")]
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pub(crate) fn new(context: platform::GlContext) -> GlContext {
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GlContext { context, phantom: PhantomData }
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}
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pub unsafe fn make_current(&self) {
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self.context.make_current();
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}
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pub unsafe fn make_not_current(&self) {
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self.context.make_not_current();
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}
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pub fn get_proc_address(&self, symbol: &str) -> *const c_void {
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self.context.get_proc_address(symbol)
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}
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pub fn swap_buffers(&self) {
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self.context.swap_buffers();
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}
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/// On macOS the `NSOpenGLView` needs to be resized separtely from our main view.
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#[cfg(target_os = "macos")]
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pub(crate) fn resize(&self, size: cocoa::foundation::NSSize) {
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self.context.resize(size);
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}
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}
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