/
ui_linbsd.go
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/
ui_linbsd.go
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// Copyright 2016 Hajime Hoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build (freebsd || (linux && !android) || netbsd || openbsd) && !nintendosdk && !playstation5
package ui
import (
"errors"
"fmt"
"runtime"
"github.com/jezek/xgb"
"github.com/jezek/xgb/randr"
"github.com/jezek/xgb/xproto"
"github.com/hajimehoshi/ebiten/v2/internal/glfw"
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/opengl"
)
func (u *UserInterface) initializePlatform() error {
return nil
}
type graphicsDriverCreatorImpl struct {
transparent bool
}
func (g *graphicsDriverCreatorImpl) newAuto() (graphicsdriver.Graphics, GraphicsLibrary, error) {
graphics, err := g.newOpenGL()
return graphics, GraphicsLibraryOpenGL, err
}
func (*graphicsDriverCreatorImpl) newOpenGL() (graphicsdriver.Graphics, error) {
return opengl.NewGraphics()
}
func (*graphicsDriverCreatorImpl) newDirectX() (graphicsdriver.Graphics, error) {
return nil, errors.New("ui: DirectX is not supported in this environment")
}
func (*graphicsDriverCreatorImpl) newMetal() (graphicsdriver.Graphics, error) {
return nil, errors.New("ui: Metal is not supported in this environment")
}
func (*graphicsDriverCreatorImpl) newPlayStation5() (graphicsdriver.Graphics, error) {
return nil, errors.New("ui: PlayStation 5 is not supported in this environment")
}
// glfwMonitorSizeInGLFWPixels must be called from the main thread.
func glfwMonitorSizeInGLFWPixels(m *glfw.Monitor) (int, int, error) {
vm, err := m.GetVideoMode()
if err != nil {
return 0, 0, err
}
physWidth, physHeight := vm.Width, vm.Height
// TODO: if glfw/glfw#1961 gets fixed, this function may need revising.
// In case GLFW decides to switch to returning logical pixels, we can just return 1.
// Note: GLFW currently returns physical pixel sizes,
// but we need to predict the window system-side size of the fullscreen window
// for Ebitengine's `(*Monitor).Size()` public API.
// Also at the moment we need this prior to switching to fullscreen, but that might be replaceable.
// So this function computes the ratio of physical per logical pixels.
xconn, err := xgb.NewConn()
if err != nil {
// No X11 connection?
// Assume we're on pure Wayland then.
// GLFW/Wayland shouldn't be having this issue.
return physWidth, physHeight, nil
}
defer xconn.Close()
if err := randr.Init(xconn); err != nil {
// No RANDR extension? No problem.
return physWidth, physHeight, nil
}
root := xproto.Setup(xconn).DefaultScreen(xconn).Root
res, err := randr.GetScreenResourcesCurrent(xconn, root).Reply()
if err != nil {
// Likely means RANDR is not working. No problem.
return physWidth, physHeight, nil
}
monitorX, monitorY, err := m.GetPos()
if err != nil {
// TODO: Is it OK to ignore this error?
return physWidth, physHeight, nil
}
for _, crtc := range res.Crtcs[:res.NumCrtcs] {
info, err := randr.GetCrtcInfo(xconn, crtc, res.ConfigTimestamp).Reply()
if err != nil {
// This Crtc is bad. Maybe just got disconnected?
continue
}
if info.NumOutputs == 0 {
// This Crtc is not connected to any output.
// In other words, a disabled monitor.
continue
}
if int(info.X) == monitorX && int(info.Y) == monitorY {
return int(info.Width), int(info.Height), nil
}
}
// Monitor not known to XRandR. Weird.
return physWidth, physHeight, nil
}
func dipFromGLFWPixel(x float64, deviceScaleFactor float64) float64 {
return x / deviceScaleFactor
}
func dipToGLFWPixel(x float64, deviceScaleFactor float64) float64 {
return x * deviceScaleFactor
}
func (u *UserInterface) adjustWindowPosition(x, y int, monitor *Monitor) (int, int) {
return x, y
}
func initialMonitorByOS() (*Monitor, error) {
xconn, err := xgb.NewConn()
if err != nil {
// Assume we're on pure Wayland then.
return nil, nil
}
defer xconn.Close()
root := xproto.Setup(xconn).DefaultScreen(xconn).Root
rep, err := xproto.QueryPointer(xconn, root).Reply()
if err != nil {
return nil, err
}
x, y := int(rep.RootX), int(rep.RootY)
// Find the monitor including the cursor.
return theMonitors.monitorFromPosition(x, y), nil
}
func monitorFromWindowByOS(_ *glfw.Window) (*Monitor, error) {
// TODO: Implement this correctly. (#1119).
return nil, nil
}
func (u *UserInterface) nativeWindow() (uintptr, error) {
// TODO: Implement this.
return 0, nil
}
func (u *UserInterface) isNativeFullscreen() (bool, error) {
return false, nil
}
func (u *UserInterface) isNativeFullscreenAvailable() bool {
return false
}
func (u *UserInterface) setNativeFullscreen(fullscreen bool) error {
panic(fmt.Sprintf("ui: setNativeFullscreen is not implemented in this environment: %s", runtime.GOOS))
}
func (u *UserInterface) adjustViewSizeAfterFullscreen() error {
return nil
}
func (u *UserInterface) setWindowResizingModeForOS(mode WindowResizingMode) error {
return nil
}
func initializeWindowAfterCreation(w *glfw.Window) error {
// Show the window once before getting the position of the window.
// On Linux/Unix, the window position is not reliable before showing.
if err := w.Show(); err != nil {
return err
}
// Hiding the window makes the position unreliable again. Do not call w.Hide() here (#1829)
// Calling Hide is problematic especially on XWayland and/or Sway.
// Apparently the window state is inconsistent just after the window is created, but we are not sure.
// For more details, see the discussion in #1829.
return nil
}
func (u *UserInterface) skipTaskbar() error {
return nil
}