forked from joejulian/gio
Elias Naur
0e592f8bc6
The NSViewGlobalFrameDidChangeNotification notification is documented to be fired every time [NSOpenGLContext update] needs to be called. However, the notification fails to fire on my setup when a window is moved to a display with a different pixel scale, which leads to incorrectly sized output. This change gets rid of the notification and updates the context before every frame. Signed-off-by: Elias Naur <mail@eliasnaur.com>
68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package wm
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/*
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#include <android/native_window_jni.h>
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#include <EGL/egl.h>
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*/
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import "C"
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import (
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"unsafe"
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"gioui.org/internal/egl"
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)
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type context struct {
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win *window
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*egl.Context
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}
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func (w *window) NewContext() (Context, error) {
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ctx, err := egl.NewContext(nil)
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if err != nil {
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return nil, err
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}
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return &context{win: w, Context: ctx}, nil
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}
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func (c *context) Release() {
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if c.Context != nil {
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c.Context.Release()
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c.Context = nil
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}
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}
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func (c *context) Refresh() error {
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return nil
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}
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func (c *context) MakeCurrent() error {
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c.Context.ReleaseSurface()
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var (
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win *C.ANativeWindow
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width, height int
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)
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// Run on main thread. Deadlock is avoided because MakeCurrent is only
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// called during a FrameEvent.
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c.win.callbacks.Run(func() {
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win, width, height = c.win.nativeWindow(c.Context.VisualID())
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})
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if win == nil {
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return nil
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}
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eglSurf := egl.NativeWindowType(unsafe.Pointer(win))
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if err := c.Context.CreateSurface(eglSurf, width, height); err != nil {
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return err
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}
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if err := c.Context.MakeCurrent(); err != nil {
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return err
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}
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return nil
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}
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func (c *context) Lock() {}
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func (c *context) Unlock() {}
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