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autocommit 2022-01-28 03:35:35 CET

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This commit is contained in:
Julian Orth 2022-01-28 03:35:35 +01:00
parent c340df0d08
commit a5573b8a3a
36 changed files with 3046 additions and 114 deletions
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142
build.rs
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@ -1,4 +1,5 @@
use repc::layout::{Type, TypeVariant};
use std::fmt::Write as FmtWrite;
use std::fs::{File, OpenOptions};
use std::io::BufWriter;
use std::io::Write;
@ -58,6 +59,144 @@ fn write_ty<W: Write>(f: &mut W, vals: &[u32], ty: &str) -> anyhow::Result<()> {
Ok(())
}
fn write_egl_procs<W: Write>(f: &mut W) -> anyhow::Result<()> {
let map = [
(
"eglGetPlatformDisplayEXT",
"EGLDisplay",
&[
("platform", "EGLenum"),
("native_display", "*mut u8"),
("attrib_list", "*const EGLint"),
][..],
),
(
"eglCreateImageKHR",
"EGLImageKHR",
&[
("dpy", "EGLDisplay"),
("ctx", "EGLContext"),
("target", "EGLenum"),
("buffer", "EGLClientBuffer"),
("attrib_list", "*const EGLint"),
][..],
),
(
"eglDestroyImageKHR",
"EGLBoolean",
&[("dpy", "EGLDisplay"), ("image", "EGLImageKHR")][..],
),
(
"eglQueryDmaBufFormatsEXT",
"EGLBoolean",
&[
("dpy", "EGLDisplay"),
("max_formats", "EGLint"),
("formats", "*mut EGLint"),
("num_formats", "*mut EGLint"),
][..],
),
(
"eglQueryDmaBufModifiersEXT",
"EGLBoolean",
&[
("dpy", "EGLDisplay"),
("format", "EGLint"),
("max_modifiers", "EGLint"),
("modifiers", "*mut EGLuint64KHR"),
("external_only", "*mut EGLBoolean"),
("num_modifiers", "*mut EGLint"),
][..],
),
(
"eglDebugMessageControlKHR",
"EGLint",
&[
("callback", "EGLDEBUGPROCKHR"),
("attrib_list", "*const EGLAttrib"),
][..],
),
(
"eglQueryDisplayAttribEXT",
"EGLBoolean",
&[
("dpy", "EGLDisplay"),
("attribute", "EGLint"),
("value", "*mut EGLAttrib"),
][..],
),
(
"eglQueryDeviceStringEXT",
"*const c::c_char",
&[("device", "EGLDeviceEXT"), ("name", "EGLint")][..],
),
(
"eglQueryDevicesEXT",
"EGLBoolean",
&[
("max_devices", "EGLint"),
("devices", "*mut EGLDeviceEXT"),
("num_devices", "*mut EGLint"),
][..],
),
(
"glEGLImageTargetRenderbufferStorageOES",
"()",
&[("target", "GLenum"), ("image", "GLeglImageOES")][..],
),
];
writeln!(f, "use std::ptr;")?;
writeln!(f, "use super::sys::*;")?;
writeln!(f)?;
writeln!(f, "#[derive(Copy, Clone, Debug)]")?;
writeln!(f, "pub struct ExtProc {{")?;
for (name, _, _) in map.iter().copied() {
writeln!(f, " {}: *mut u8,", name)?;
}
writeln!(f, "}}")?;
writeln!(f)?;
writeln!(f, "impl ExtProc {{")?;
writeln!(f, " pub fn load() -> Self {{")?;
writeln!(f, " Self {{")?;
for (name, _, _) in map.iter().copied() {
writeln!(
f,
" {}: unsafe {{ eglGetProcAddress(\"{}\\0\".as_ptr() as _) }},",
name, name
)?;
}
writeln!(f, " }}")?;
writeln!(f, " }}")?;
for (name, ret, args) in map.iter().copied() {
let mut args_names = String::new();
let mut args_full = String::new();
let mut args_tys = String::new();
for (name, ty) in args.iter().copied() {
write!(args_full, "{}: {}, ", name, ty)?;
write!(args_names, "{}, ", name)?;
write!(args_tys, "{}, ", ty)?;
}
writeln!(f)?;
writeln!(
f,
" pub(super) unsafe fn {}(&self, {}) -> {} {{",
name, args_full, ret
)?;
writeln!(f, " if self.{}.is_null() {{", name)?;
writeln!(f, " panic!(\"Could not load `{}`\");", name)?;
writeln!(f, " }}")?;
writeln!(
f,
" ptr::read(&self.{} as *const *mut u8 as *const unsafe extern fn({}) -> {})({})",
name, args_tys, ret, args_names
)?;
writeln!(f, " }}")?;
}
writeln!(f, "}}")?;
Ok(())
}
fn main() -> anyhow::Result<()> {
let mut f = open("pixman_tys.rs")?;
write_ty(&mut f, pixman::FORMATS, "PixmanFormat")?;
@ -79,6 +218,9 @@ fn main() -> anyhow::Result<()> {
)?;
write_ty(&mut f, xkbcommon::XKB_KEY_DIRECTION, "xkb_key_direction")?;
let mut f = open("egl_procs.rs")?;
write_egl_procs(&mut f)?;
println!("cargo:rerun-if-changed=build.rs");
Ok(())
}