gio/app/egl_x11.go at integration · dominikh/gio

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// SPDX-License-Identifier: Unlicense OR MIT

//go:build ((linux && !android) || freebsd || openbsd) && !nox11

// +build linux,!android freebsd openbsd

// +build !nox11

package app

import (

"unsafe"

"gioui.org/internal/egl"

)

type x11Context struct {

win *x11Window

*egl.Context

}

func init() {

newX11EGLContext = func(w *x11Window) (context, error) {

disp := egl.NativeDisplayType(unsafe.Pointer(w.display()))

ctx, err := egl.NewContext(disp)

if err != nil {

return nil, err

}

return &x11Context{win: w, Context: ctx}, nil

}

func (c *x11Context) Release() {

if c.Context != nil {

c.Context.Release()

c.Context = nil

}

func (c *x11Context) Refresh() error {

c.Context.ReleaseSurface()

win, width, height := c.win.window()

eglSurf := egl.NativeWindowType(uintptr(win))

if err := c.Context.CreateSurface(eglSurf, width, height); err != nil {

return err

}

if err := c.Context.MakeCurrent(); err != nil {

return err

}

c.Context.EnableVSync(true)

c.Context.ReleaseCurrent()

return nil

}

func (c *x11Context) Lock() error {

return c.Context.MakeCurrent()

}

func (c *x11Context) Unlock() {

c.Context.ReleaseCurrent()

}

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