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render: load libEGL and libGLESv2 at runtime

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This commit is contained in:
Julian Orth 2024-02-22 21:14:40 +01:00
parent aa9ca29996
commit 0c82f02b26
15 changed files with 337 additions and 259 deletions
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19
src/gfx_apis/gl/ext.rs
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@ -1,8 +1,10 @@
use {
crate::{
gfx_apis::gl::{
egl::sys::{eglQueryString, EGLDisplay, EGL_EXTENSIONS},
gl::sys::{glGetString, GL_EXTENSIONS},
egl::sys::{EGLDisplay, EGL_EXTENSIONS},
gl::sys::GL_EXTENSIONS,
sys::{EGL, GLESV2},
RenderError,
},
utils::trim::AsciiTrim,
},
@ -30,7 +32,7 @@ unsafe fn get_extensions(ext: *const c::c_char) -> Option<AHashSet<String>> {
}
unsafe fn get_dpy_extensions(dpy: EGLDisplay) -> Option<AHashSet<String>> {
let ext = eglQueryString(dpy, EGL_EXTENSIONS);
let ext = (EGL.as_ref()?.eglQueryString)(dpy, EGL_EXTENSIONS);
get_extensions(ext)
}
@ -107,13 +109,16 @@ bitflags! {
GL_OES_EGL_IMAGE_EXTERNAL = 1 << 1,
}
pub fn get_gl_ext() -> GlExt {
pub fn get_gl_ext() -> Result<GlExt, RenderError> {
let map = [
("GL_OES_EGL_image", GL_OES_EGL_IMAGE),
("GL_OES_EGL_image_external", GL_OES_EGL_IMAGE_EXTERNAL),
];
match unsafe { get_extensions(glGetString(GL_EXTENSIONS) as _) } {
Some(exts) => get_typed_ext(&exts, GlExt::none(), &map),
_ => GlExt::none(),
let Some(gles) = GLESV2.as_ref() else {
return Err(RenderError::LoadGlesV2);
};
match unsafe { get_extensions((gles.glGetString)(GL_EXTENSIONS) as _) } {
Some(exts) => Ok(get_typed_ext(&exts, GlExt::none(), &map)),
_ => Ok(GlExt::none()),
}
}