Files
gio/app/egl_wayland.go
T
Elias Naur 45da52cee7 app: merge app/internal/wm into package app
The app and app/internal/wm packages are tightly coupled, requiring
quite a bit of forwarding types, values and constants from the internal
package to export it. Further, no other package imports package wm.

This change merges the two packages.

While here, drop the pre-Go 1.14 SIGPIPE workaround.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
2021-08-29 22:00:16 +02:00

78 lines
1.6 KiB
Go

// SPDX-License-Identifier: Unlicense OR MIT
//go:build (linux && !android && !nowayland) || freebsd
// +build linux,!android,!nowayland freebsd
package app
import (
"errors"
"unsafe"
"gioui.org/internal/egl"
)
/*
#cgo linux pkg-config: egl wayland-egl
#cgo freebsd openbsd LDFLAGS: -lwayland-egl
#cgo CFLAGS: -DEGL_NO_X11
#include <EGL/egl.h>
#include <wayland-client.h>
#include <wayland-egl.h>
*/
import "C"
type wlContext struct {
win *window
*egl.Context
eglWin *C.struct_wl_egl_window
}
func (w *window) NewContext() (context, error) {
disp := egl.NativeDisplayType(unsafe.Pointer(w.display()))
ctx, err := egl.NewContext(disp)
if err != nil {
return nil, err
}
return &wlContext{Context: ctx, win: w}, nil
}
func (c *wlContext) Release() {
if c.Context != nil {
c.Context.Release()
c.Context = nil
}
if c.eglWin != nil {
C.wl_egl_window_destroy(c.eglWin)
c.eglWin = nil
}
}
func (c *wlContext) Refresh() error {
c.Context.ReleaseSurface()
if c.eglWin != nil {
C.wl_egl_window_destroy(c.eglWin)
c.eglWin = nil
}
surf, width, height := c.win.surface()
if surf == nil {
return errors.New("wayland: no surface")
}
eglWin := C.wl_egl_window_create(surf, C.int(width), C.int(height))
if eglWin == nil {
return errors.New("wayland: wl_egl_window_create failed")
}
c.eglWin = eglWin
eglSurf := egl.NativeWindowType(uintptr(unsafe.Pointer(eglWin)))
return c.Context.CreateSurface(eglSurf, width, height)
}
func (c *wlContext) Lock() error {
return c.Context.MakeCurrent()
}
func (c *wlContext) Unlock() {
c.Context.ReleaseCurrent()
}