lazarus/platform/window.go

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package platform
import "github.com/veandco/go-sdl2/sdl"
type Window interface {
Destroy() error
}
type window struct {
sdlWindow *sdl.Window
sdlGlContext sdl.GLContext
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sdlRenderer *sdl.Renderer
}
func newWindow(title string, width, height int) (Window, error) {
sdlWindow, err := sdl.CreateWindow(
title,
sdl.WINDOWPOS_CENTERED,
sdl.WINDOWPOS_CENTERED,
int32(width),
int32(height),
sdl.WINDOW_OPENGL,
)
if err != nil {
return nil, err
}
sdlGlContext, err := sdlWindow.GLCreateContext()
if err != nil {
sdlWindow.Destroy()
return nil, err
}
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sdlRenderer, err := sdl.CreateRenderer(sdlWindow, -1, sdl.RENDERER_ACCELERATED)
if err != nil {
sdlWindow.Destroy()
return nil, err
}
return &window{sdlWindow, sdlGlContext, sdlRenderer}, nil
}
func (w *window) Destroy() error {
if w.sdlWindow != nil {
if err := w.sdlWindow.Destroy(); err != nil {
return err
}
}
w.sdlGlContext = nil
w.sdlWindow = nil
return nil
}