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render: split module into gfx_apis and renderer

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This commit is contained in:
Julian Orth 2023-10-22 17:35:31 +02:00
parent 5e8a6eb86f
commit d650b3375d
68 changed files with 219 additions and 222 deletions
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140
src/render/ext.rs
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@ -1,140 +0,0 @@
use {
crate::{
render::{
egl::sys::{eglQueryString, EGLDisplay, EGL_EXTENSIONS},
gl::sys::{glGetString, GL_EXTENSIONS},
},
utils::trim::AsciiTrim,
},
ahash::AHashSet,
bstr::ByteSlice,
std::{ffi::CStr, ops::BitOrAssign, str},
uapi::c,
};
unsafe fn get_extensions(ext: *const c::c_char) -> Option<AHashSet<String>> {
if ext.is_null() {
return None;
}
let mut res = AHashSet::new();
let ext = CStr::from_ptr(ext).to_bytes();
for part in ext.split_str(" ") {
let name = part.trim();
if name.len() > 0 {
if let Ok(s) = str::from_utf8(name) {
res.insert(s.to_string());
}
}
}
Some(res)
}
unsafe fn get_dpy_extensions(dpy: EGLDisplay) -> Option<AHashSet<String>> {
let ext = eglQueryString(dpy, EGL_EXTENSIONS);
get_extensions(ext)
}
fn get_typed_ext<T>(exts: &AHashSet<String>, mut base: T, map: &[(&str, T)]) -> T
where
T: BitOrAssign + Copy,
{
for (name, ext) in map.iter().copied() {
if exts.contains(name) {
base |= ext;
}
}
base
}
bitflags::bitflags! {
#[derive(Copy, Clone, Debug)]
pub struct ClientExt: u32 {
const EXT_CLIENT_EXTENSION = 1 << 0;
const EXT_PLATFORM_BASE = 1 << 1;
const KHR_PLATFORM_GBM = 1 << 2;
const KHR_DEBUG = 1 << 3;
}
}
pub fn get_client_ext() -> ClientExt {
let map = [
("EGL_EXT_platform_base", ClientExt::EXT_PLATFORM_BASE),
("EGL_KHR_platform_gbm", ClientExt::KHR_PLATFORM_GBM),
("EGL_KHR_debug", ClientExt::KHR_DEBUG),
];
match unsafe { get_dpy_extensions(EGLDisplay::none()) } {
Some(exts) => get_typed_ext(&exts, ClientExt::EXT_CLIENT_EXTENSION, &map),
_ => ClientExt::empty(),
}
}
bitflags::bitflags! {
#[derive(Copy, Clone, Debug)]
pub struct DisplayExt: u32 {
const KHR_IMAGE_BASE = 1 << 0;
const EXT_IMAGE_DMA_BUF_IMPORT = 1 << 1;
const EXT_IMAGE_DMA_BUF_IMPORT_MODIFIERS = 1 << 2;
const KHR_NO_CONFIG_CONTEXT = 1 << 3;
const MESA_CONFIGLESS_CONTEXT = 1 << 4;
const KHR_SURFACELESS_CONTEXT = 1 << 5;
const IMG_CONTEXT_PRIORITY = 1 << 6;
const EXT_CREATE_CONTEXT_ROBUSTNESS = 1 << 7;
}
}
pub(super) unsafe fn get_display_ext(dpy: EGLDisplay) -> DisplayExt {
let map = [
("EGL_KHR_image_base", DisplayExt::KHR_IMAGE_BASE),
(
"EGL_EXT_image_dma_buf_import",
DisplayExt::EXT_IMAGE_DMA_BUF_IMPORT,
),
(
"EGL_EXT_image_dma_buf_import_modifiers",
DisplayExt::EXT_IMAGE_DMA_BUF_IMPORT_MODIFIERS,
),
(
"EGL_KHR_no_config_context",
DisplayExt::KHR_NO_CONFIG_CONTEXT,
),
(
"EGL_MESA_configless_context",
DisplayExt::MESA_CONFIGLESS_CONTEXT,
),
(
"EGL_KHR_surfaceless_context",
DisplayExt::KHR_SURFACELESS_CONTEXT,
),
("EGL_IMG_context_priority", DisplayExt::IMG_CONTEXT_PRIORITY),
(
"EGL_EXT_create_context_robustness",
DisplayExt::EXT_CREATE_CONTEXT_ROBUSTNESS,
),
];
match get_dpy_extensions(dpy) {
Some(exts) => get_typed_ext(&exts, DisplayExt::empty(), &map),
_ => DisplayExt::empty(),
}
}
bitflags::bitflags! {
#[derive(Copy, Clone, Debug)]
pub struct GlExt: u32 {
const GL_OES_EGL_IMAGE = 1 << 0;
const GL_OES_EGL_IMAGE_EXTERNAL = 1 << 1;
}
}
pub fn get_gl_ext() -> GlExt {
let map = [
("GL_OES_EGL_image", GlExt::GL_OES_EGL_IMAGE),
(
"GL_OES_EGL_image_external",
GlExt::GL_OES_EGL_IMAGE_EXTERNAL,
),
];
match unsafe { get_extensions(glGetString(GL_EXTENSIONS) as _) } {
Some(exts) => get_typed_ext(&exts, GlExt::empty(), &map),
_ => GlExt::empty(),
}
}