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52 lines
962 B
Go
52 lines
962 B
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package window
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import (
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"gioui.org/app/internal/egl"
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)
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type glContext struct {
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win *window
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*egl.Context
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}
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func init() {
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backends = append(backends, gpuAPI{
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priority: 2,
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initializer: func(w *window) (Context, error) {
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disp := egl.NativeDisplayType(w.HDC())
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ctx, err := egl.NewContext(disp)
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if err != nil {
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return nil, err
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}
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return &glContext{win: w, Context: ctx}, nil
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},
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})
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}
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func (c *glContext) 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 *glContext) MakeCurrent() error {
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c.Context.ReleaseSurface()
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win, width, height := c.win.HWND()
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eglSurf := egl.NativeWindowType(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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c.Context.EnableVSync(true)
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return nil
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}
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func (c *glContext) Lock() {}
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func (c *glContext) Unlock() {}
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