mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-25 03:08:54 +01:00
uidriver/glfw: Force to swap buffer or recreate an window after toggling fullscreen
This change resolves a bug that an image lag remains after toggling fullscreen. On OpenGL, swapping buffer is necessary after toggling fullscreen. On Metal, recreating a window works after toggling fullscreen. Fixes #1004
This commit is contained in:
Hajime Hoshi
parent
2180613e2a
commit
80fbc9701c
@ -21,6 +21,7 @@ package glfw
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import (
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"context"
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"fmt"
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"image"
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"math"
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"os"
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@ -323,22 +324,14 @@ func (u *UserInterface) SetScreenSize(width, height int) {
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if !u.isRunning() {
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panic("glfw: SetScreenSize can't be called before the main loop starts")
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}
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_ = u.t.Call(func() error {
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// TODO: What if the window is maximized? (#320)
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u.setScreenSize(width, height, u.scale, u.isFullscreen(), u.vsync)
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return nil
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})
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u.setScreenSize(width, height, u.scale, u.isFullscreen(), u.vsync)
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}
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func (u *UserInterface) SetScreenScale(scale float64) {
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if !u.isRunning() {
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panic("glfw: SetScreenScale can't be called before the main loop starts")
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}
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_ = u.t.Call(func() error {
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// TODO: What if the window is maximized? (#320)
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u.setScreenSize(u.width, u.height, scale, u.isFullscreen(), u.vsync)
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return nil
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})
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u.setScreenSize(u.width, u.height, scale, u.isFullscreen(), u.vsync)
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}
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func (u *UserInterface) ScreenScale() float64 {
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@ -378,10 +371,7 @@ func (u *UserInterface) SetFullscreen(fullscreen bool) {
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u.setInitFullscreen(fullscreen)
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return
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}
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_ = u.t.Call(func() error {
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u.setScreenSize(u.width, u.height, u.scale, fullscreen, u.vsync)
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return nil
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})
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u.setScreenSize(u.width, u.height, u.scale, fullscreen, u.vsync)
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}
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func (u *UserInterface) SetRunnableInBackground(runnableInBackground bool) {
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@ -403,10 +393,7 @@ func (u *UserInterface) SetVsyncEnabled(enabled bool) {
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u.m.Unlock()
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return
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}
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_ = u.t.Call(func() error {
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u.setScreenSize(u.width, u.height, u.scale, u.isFullscreen(), enabled)
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return nil
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})
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u.setScreenSize(u.width, u.height, u.scale, u.isFullscreen(), enabled)
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}
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func (u *UserInterface) IsVsyncEnabled() bool {
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@ -676,6 +663,12 @@ func (u *UserInterface) createWindow() error {
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}
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func (u *UserInterface) run(width, height int, scale float64, title string, context driver.UIContext) error {
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var (
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m *glfw.Monitor
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mx, my int
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v *glfw.VidMode
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)
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if err := u.t.Call(func() error {
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if u.graphics.IsGL() {
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glfw.WindowHint(glfw.ContextVersionMajor, 2)
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@ -728,13 +721,20 @@ func (u *UserInterface) run(width, height int, scale float64, title string, cont
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// there is not the active window but the foreground window. After showing the current window, the
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// current window will be the active window. Thus, currentMonitor result varies before and after
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// showing the window.
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m := u.currentMonitor()
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mx, my := m.GetPos()
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v := m.GetVideoMode()
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m = u.currentMonitor()
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mx, my = m.GetPos()
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v = m.GetVideoMode()
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// The game is in window mode (not fullscreen mode) at the first state.
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// Don't refer u.initFullscreen here to avoid some GLFW problems.
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u.setScreenSize(width, height, scale, false, u.vsync)
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return nil
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}); err != nil {
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return err
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}
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// The game is in window mode (not fullscreen mode) at the first state.
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// Don't refer u.initFullscreen here to avoid some GLFW problems.
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u.setScreenSize(width, height, scale, false, u.vsync)
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_ = u.t.Call(func() error {
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// Get the window size before showing since window.Show might change the current
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// monitor which affects glfwSize result.
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w, h := u.glfwSize()
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@ -754,9 +754,7 @@ func (u *UserInterface) run(width, height int, scale float64, title string, cont
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u.window.SetPos(x, y)
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return nil
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}); err != nil {
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return err
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}
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})
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var w unsafe.Pointer
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_ = u.t.Call(func() error {
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@ -807,10 +805,10 @@ func (u *UserInterface) monitorScale() float64 {
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}
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func (u *UserInterface) updateSize(context driver.UIContext) {
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u.setScreenSize(u.width, u.height, u.scale, u.isFullscreen(), u.vsync)
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sizeChanged := false
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_ = u.t.Call(func() error {
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u.setScreenSize(u.width, u.height, u.scale, u.isFullscreen(), u.vsync)
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if !u.toChangeSize {
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return nil
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}
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@ -839,13 +837,10 @@ func (u *UserInterface) update(context driver.UIContext) error {
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return driver.RegularTermination
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}
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_ = u.t.Call(func() error {
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if u.isInitFullscreen() {
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u.setScreenSize(u.width, u.height, u.scale, true, u.vsync)
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u.setInitFullscreen(false)
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}
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return nil
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})
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if u.isInitFullscreen() {
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u.setScreenSize(u.width, u.height, u.scale, true, u.vsync)
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u.setInitFullscreen(false)
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}
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// This call is needed for initialization.
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u.updateSize(context)
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@ -876,15 +871,13 @@ func (u *UserInterface) update(context driver.UIContext) error {
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}
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// Update the screen size when the window is resizable.
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_ = u.t.Call(func() error {
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w, h := u.reqWidth, u.reqHeight
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if w != 0 || h != 0 {
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u.setScreenSize(w, h, u.scale, u.isFullscreen(), u.vsync)
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}
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u.reqWidth = 0
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u.reqHeight = 0
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return nil
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})
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// TODO: Need locks.
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w, h := u.reqWidth, u.reqHeight
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if w != 0 || h != 0 {
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u.setScreenSize(w, h, u.scale, u.isFullscreen(), u.vsync)
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}
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u.reqWidth = 0
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u.reqHeight = 0
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return nil
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}
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@ -941,112 +934,142 @@ func (u *UserInterface) swapBuffers() {
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}
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}
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// setScreenSize must be called from the main thread.
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func (u *UserInterface) setScreenSize(width, height int, scale float64, fullscreen bool, vsync bool) {
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if u.width == width && u.height == height && u.scale == scale && u.isFullscreen() == fullscreen && u.vsync == vsync && u.lastMonitorScale == u.monitorScale() {
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return
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}
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windowRecreated := false
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// On Windows, giving a too small width doesn't call a callback (#165).
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// To prevent hanging up, return asap if the width is too small.
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// 252 is an arbitrary number and I guess this is small enough.
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minWindowWidth := 252
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if u.window.GetAttrib(glfw.Decorated) == glfw.False {
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minWindowWidth = 1
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}
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if width < 1 {
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width = 1
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}
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if height < 1 {
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height = 1
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}
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u.width = width
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u.windowWidth = width
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s := scale * devicescale.GetAt(u.currentMonitor().GetPos())
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if int(float64(width)*s) < minWindowWidth {
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u.windowWidth = int(math.Ceil(float64(minWindowWidth) / s))
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}
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u.height = height
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u.scale = scale
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u.fullscreenScale = 0
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u.vsync = vsync
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u.lastMonitorScale = u.monitorScale()
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// To make sure the current existing framebuffers are rendered,
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// swap buffers here before SetSize is called.
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u.swapBuffers()
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if fullscreen {
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if u.origPosX == invalidPos || u.origPosY == invalidPos {
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u.origPosX, u.origPosY = u.window.GetPos()
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}
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m := u.currentMonitor()
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v := m.GetVideoMode()
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u.window.SetMonitor(m, 0, 0, v.Width, v.Height, v.RefreshRate)
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} else {
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if u.window.GetMonitor() != nil {
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// Give dummy values as the window position and size.
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// The new window position should be specifying after SetSize.
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u.window.SetMonitor(nil, 0, 0, 16, 16, 0)
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_ = u.t.Call(func() error {
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if u.width == width && u.height == height && u.scale == scale && u.isFullscreen() == fullscreen && u.vsync == vsync && u.lastMonitorScale == u.monitorScale() {
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return nil
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}
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oldW, oldH := u.window.GetSize()
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newW, newH := u.glfwSize()
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if oldW != newW || oldH != newH {
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ch := make(chan struct{})
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u.window.SetFramebufferSizeCallback(func(_ *glfw.Window, _, _ int) {
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u.window.SetFramebufferSizeCallback(nil)
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close(ch)
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})
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u.window.SetSize(u.glfwSize())
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event:
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for {
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// On Windows, giving a too small width doesn't call a callback (#165).
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// To prevent hanging up, return asap if the width is too small.
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// 252 is an arbitrary number and I guess this is small enough.
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minWindowWidth := 252
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if u.window.GetAttrib(glfw.Decorated) == glfw.False {
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minWindowWidth = 1
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}
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if width < 1 {
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width = 1
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}
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if height < 1 {
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height = 1
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}
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u.width = width
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u.windowWidth = width
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s := scale * devicescale.GetAt(u.currentMonitor().GetPos())
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if int(float64(width)*s) < minWindowWidth {
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u.windowWidth = int(math.Ceil(float64(minWindowWidth) / s))
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}
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u.height = height
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u.scale = scale
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u.fullscreenScale = 0
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u.vsync = vsync
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u.lastMonitorScale = u.monitorScale()
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// To make sure the current existing framebuffers are rendered,
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// swap buffers here before SetSize is called.
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u.swapBuffers()
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if fullscreen {
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if u.origPosX == invalidPos || u.origPosY == invalidPos {
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u.origPosX, u.origPosY = u.window.GetPos()
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}
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m := u.currentMonitor()
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v := m.GetVideoMode()
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u.window.SetMonitor(m, 0, 0, v.Width, v.Height, v.RefreshRate)
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// Swapping buffer is necesary to prevent the image lag (#1004).
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if u.graphics.IsGL() {
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glfw.PollEvents()
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select {
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case <-ch:
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break event
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default:
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u.swapBuffers()
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}
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} else {
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if u.window.GetMonitor() != nil {
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if u.graphics.IsGL() {
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// When OpenGL is used, swapping buffer is enough to solve the image-lag
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// issue (#1004). Rather, recreating window destroys GPU resources.
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u.window.SetMonitor(nil, 0, 0, 16, 16, 0)
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glfw.PollEvents()
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u.swapBuffers()
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} else {
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// Recreate the window since an image lag remains after coming back from
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// fullscreen (#1004).
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if u.window != nil {
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u.window.Destroy()
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u.window = nil
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}
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if err := u.createWindow(); err != nil {
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// TODO: This should return an error.
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panic(fmt.Sprintf("glfw: failed to recreate window: %v", err))
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}
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windowRecreated = true
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}
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}
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}
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if u.origPosX != invalidPos && u.origPosY != invalidPos {
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x := u.origPosX
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y := u.origPosY
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u.window.SetPos(x, y)
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// Dirty hack for macOS (#703). Rendering doesn't work correctly with one SetPos, but work
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// with two or more SetPos.
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if runtime.GOOS == "darwin" {
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u.window.SetPos(x+1, y)
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u.window.SetPos(x, y)
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oldW, oldH := u.window.GetSize()
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newW, newH := u.glfwSize()
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if oldW != newW || oldH != newH {
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ch := make(chan struct{})
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u.window.SetFramebufferSizeCallback(func(_ *glfw.Window, _, _ int) {
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u.window.SetFramebufferSizeCallback(nil)
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close(ch)
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})
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u.window.SetSize(u.glfwSize())
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event:
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for {
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glfw.PollEvents()
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select {
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case <-ch:
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break event
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default:
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}
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}
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}
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u.origPosX = invalidPos
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u.origPosY = invalidPos
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if u.origPosX != invalidPos && u.origPosY != invalidPos {
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x := u.origPosX
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y := u.origPosY
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u.window.SetPos(x, y)
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// Dirty hack for macOS (#703). Rendering doesn't work correctly with one SetPos, but
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// work with two or more SetPos.
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if runtime.GOOS == "darwin" {
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u.window.SetPos(x+1, y)
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u.window.SetPos(x, y)
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}
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u.origPosX = invalidPos
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u.origPosY = invalidPos
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}
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// Window title might be lost on macOS after coming back from fullscreen.
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u.window.SetTitle(u.title)
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}
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// Window title might be lost on macOS after coming back from fullscreen.
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u.window.SetTitle(u.title)
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}
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if u.graphics.IsGL() {
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// SwapInterval is affected by the current monitor of the window.
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// This needs to be called at least after SetMonitor.
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// Without SwapInterval after SetMonitor, vsynch doesn't work (#375).
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//
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// TODO: (#405) If triple buffering is needed, SwapInterval(0) should be called,
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// but is this correct? If glfw.SwapInterval(0) and the driver doesn't support triple
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// buffering, what will happen?
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if u.vsync {
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glfw.SwapInterval(1)
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} else {
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glfw.SwapInterval(0)
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if u.graphics.IsGL() {
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// SwapInterval is affected by the current monitor of the window.
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// This needs to be called at least after SetMonitor.
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// Without SwapInterval after SetMonitor, vsynch doesn't work (#375).
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//
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// TODO: (#405) If triple buffering is needed, SwapInterval(0) should be called,
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// but is this correct? If glfw.SwapInterval(0) and the driver doesn't support triple
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// buffering, what will happen?
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if u.vsync {
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glfw.SwapInterval(1)
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} else {
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glfw.SwapInterval(0)
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}
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}
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}
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u.graphics.SetVsyncEnabled(vsync)
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u.graphics.SetVsyncEnabled(vsync)
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u.toChangeSize = true
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u.toChangeSize = true
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return nil
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})
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if windowRecreated {
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u.graphics.SetWindow(u.nativeWindow())
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}
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}
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// currentMonitor returns the monitor most suitable with the current window.
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