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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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54
src/gfx_apis/gl/egl/display.rs
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@ -7,8 +7,8 @@ use {
context::EglContext,
image::EglImage,
sys::{
eglCreateContext, eglTerminate, EGLClientBuffer, EGLConfig, EGLContext,
EGLDisplay, EGLint, EGL_CONTEXT_CLIENT_VERSION, EGL_DMA_BUF_PLANE0_FD_EXT,
EGLClientBuffer, EGLConfig, EGLContext, EGLDisplay, EGLint,
EGL_CONTEXT_CLIENT_VERSION, EGL_DMA_BUF_PLANE0_FD_EXT,
EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT,
EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGL_DMA_BUF_PLANE0_PITCH_EXT,
EGL_DMA_BUF_PLANE1_FD_EXT, EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT,
@ -29,9 +29,10 @@ use {
KHR_IMAGE_BASE, KHR_NO_CONFIG_CONTEXT, KHR_SURFACELESS_CONTEXT,
MESA_CONFIGLESS_CONTEXT,
},
proc::ExtProc,
sys::{
eglInitialize, EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT,
EGL_LOSE_CONTEXT_ON_RESET_EXT, EGL_PLATFORM_GBM_KHR,
Egl, GlesV2, EGL, EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT,
EGL_LOSE_CONTEXT_ON_RESET_EXT, EGL_PLATFORM_GBM_KHR, GLESV2,
},
RenderError,
},
@ -57,6 +58,9 @@ pub struct EglModifier {
#[derive(Debug)]
pub struct EglDisplay {
pub egl: &'static Egl,
pub gles: &'static GlesV2,
pub procs: &'static ExtProc,
pub exts: DisplayExt,
pub formats: AHashMap<u32, EglFormat>,
pub gbm: Rc<GbmDevice>,
@ -66,11 +70,20 @@ pub struct EglDisplay {
impl EglDisplay {
pub(in crate::gfx_apis::gl) fn create(drm: &Drm) -> Result<Rc<Self>, RenderError> {
unsafe {
let Some(egl) = EGL.as_ref() else {
return Err(RenderError::LoadEgl);
};
let Some(gles) = GLESV2.as_ref() else {
return Err(RenderError::LoadGlesV2);
};
let Some(procs) = PROCS.as_ref() else {
return Err(RenderError::LoadEglProcs);
};
let gbm = match GbmDevice::new(drm) {
Ok(gbm) => gbm,
Err(e) => return Err(RenderError::Gbm(e)),
};
let dpy = PROCS.eglGetPlatformDisplayEXT(
let dpy = procs.eglGetPlatformDisplayEXT(
EGL_PLATFORM_GBM_KHR as _,
gbm.raw() as _,
ptr::null(),
@ -79,6 +92,9 @@ impl EglDisplay {
return Err(RenderError::GetDisplay);
}
let mut dpy = EglDisplay {
egl,
gles,
procs,
exts: DisplayExt::none(),
formats: AHashMap::new(),
gbm: Rc::new(gbm),
@ -86,7 +102,7 @@ impl EglDisplay {
};
let mut major = 0;
let mut minor = 0;
if eglInitialize(dpy.dpy, &mut major, &mut minor) != EGL_TRUE {
if (egl.eglInitialize)(dpy.dpy, &mut major, &mut minor) != EGL_TRUE {
return Err(RenderError::Initialize);
}
dpy.exts = get_display_ext(dpy.dpy);
@ -105,7 +121,7 @@ impl EglDisplay {
if !dpy.exts.intersects(KHR_SURFACELESS_CONTEXT) {
return Err(RenderError::SurfacelessContext);
}
dpy.formats = query_formats(dpy.dpy)?;
dpy.formats = query_formats(procs, dpy.dpy)?;
Ok(Rc::new(dpy))
}
@ -123,7 +139,7 @@ impl EglDisplay {
}
attrib.push(EGL_NONE);
let ctx = unsafe {
eglCreateContext(
(self.egl.eglCreateContext)(
self.dpy,
EGLConfig::none(),
EGLContext::none(),
@ -139,7 +155,7 @@ impl EglDisplay {
ctx,
formats: Default::default(),
};
ctx.ext = ctx.with_current(|| Ok(get_gl_ext()))?;
ctx.ext = ctx.with_current(get_gl_ext)?;
if !ctx.ext.contains(GL_OES_EGL_IMAGE) {
return Err(RenderError::OesEglImage);
}
@ -245,7 +261,7 @@ impl EglDisplay {
}
attribs.push(EGL_NONE);
let img = unsafe {
PROCS.eglCreateImageKHR(
self.procs.eglCreateImageKHR(
self.dpy,
EGLContext::none(),
EGL_LINUX_DMA_BUF_EXT as _,
@ -268,22 +284,25 @@ impl EglDisplay {
impl Drop for EglDisplay {
fn drop(&mut self) {
unsafe {
if eglTerminate(self.dpy) != EGL_TRUE {
if (self.egl.eglTerminate)(self.dpy) != EGL_TRUE {
log::warn!("`eglTerminate` failed");
}
}
}
}
unsafe fn query_formats(dpy: EGLDisplay) -> Result<AHashMap<u32, EglFormat>, RenderError> {
unsafe fn query_formats(
procs: &ExtProc,
dpy: EGLDisplay,
) -> Result<AHashMap<u32, EglFormat>, RenderError> {
let mut vec = vec![];
let mut num = 0;
let res = PROCS.eglQueryDmaBufFormatsEXT(dpy, num, ptr::null_mut(), &mut num);
let res = procs.eglQueryDmaBufFormatsEXT(dpy, num, ptr::null_mut(), &mut num);
if res != EGL_TRUE {
return Err(RenderError::QueryDmaBufFormats);
}
vec.reserve_exact(num as usize);
let res = PROCS.eglQueryDmaBufFormatsEXT(dpy, num, vec.as_mut_ptr(), &mut num);
let res = procs.eglQueryDmaBufFormatsEXT(dpy, num, vec.as_mut_ptr(), &mut num);
if res != EGL_TRUE {
return Err(RenderError::QueryDmaBufFormats);
}
@ -292,7 +311,7 @@ unsafe fn query_formats(dpy: EGLDisplay) -> Result<AHashMap<u32, EglFormat>, Ren
let formats = formats();
for fmt in vec {
if let Some(format) = formats.get(&(fmt as u32)) {
let (modifiers, external_only) = query_modifiers(dpy, fmt, format)?;
let (modifiers, external_only) = query_modifiers(procs, dpy, fmt, format)?;
res.insert(
format.drm,
EglFormat {
@ -307,6 +326,7 @@ unsafe fn query_formats(dpy: EGLDisplay) -> Result<AHashMap<u32, EglFormat>, Ren
}
unsafe fn query_modifiers(
procs: &ExtProc,
dpy: EGLDisplay,
gl_format: EGLint,
format: &'static Format,
@ -314,7 +334,7 @@ unsafe fn query_modifiers(
let mut mods = vec![];
let mut ext_only = vec![];
let mut num = 0;
let res = PROCS.eglQueryDmaBufModifiersEXT(
let res = procs.eglQueryDmaBufModifiersEXT(
dpy,
gl_format,
num,
@ -327,7 +347,7 @@ unsafe fn query_modifiers(
}
mods.reserve_exact(num as usize);
ext_only.reserve_exact(num as usize);
let res = PROCS.eglQueryDmaBufModifiersEXT(
let res = procs.eglQueryDmaBufModifiersEXT(
dpy,
gl_format,
num,