Documentation - PureBasic and DirectX

[blueznl]

I would like a better description of what works and what doesn't when using the different subsystems. It would also be great if there would be an example included that shows smooth sprite movement when in windowed screen mode...

I'm now trying to figure it out trial and error, and that's not the right way to do things, especially when things work differently in DirectX7 and DirectX9...

[Thorium]

Hm. I have no problem with smooth sprite movement on windowed mode. I don't do anything special. Coded it initialy for fullscreen but works on windowed mode without problems.

[Fluid Byte]

Not really worth it since DX9 is the standard now anyway and you should use it whenever possible. DX7 turns of Vista Aero which is really annoying for most people. Furthermore it's not 64-Bit compatible which is a major issue. Most bugs with DX9 are already known and will hopefully fixed by the team in the near future. Apart from that you can only continue reporting bugs and problems to help improve the subsystem.

Besides, you only seem to have one specific problem here. Maybe post some example code and we can have a closer look since I don't really understand the problem.

[djes]

Fluid byte> Just try examples/sources/windowedscreen.pb example with directx9 subsystem in pb4.40b5

Code: Select all

;
; ------------------------------------------------------------
;
;   PureBasic - Windowed Screen example file
;
;    (c) Fantaisie Software
;
; ------------------------------------------------------------
;

  CompilerIf Subsystem("DirectX9") = #False
    MessageRequester("MessageRequester","Please use DirectX9 subsystem",#PB_MessageRequester_Ok)
    End
  CompilerEndIf

If InitSprite() = 0 Or InitKeyboard() = 0 Or InitMouse() = 0
  MessageRequester("Error", "Can't open the sprite system", 0)
  End
EndIf

If OpenWindow(0, 0, 0, 340, 285, "Gadget and sprites!", #PB_Window_SystemMenu | #PB_Window_SizeGadget | #PB_Window_ScreenCentered)
  ButtonGadget(1, 10,  10, 100, 25, "Grab input")
  ButtonGadget(2, 120,  10, 100, 25, "Button 2")
  ButtonGadget(3, 230,  10, 100, 25, "Button 3")
  TextGadget  (4, 10, 40, 300, 30, "Press 'F1' to ungrab keyboard and mouse")

  If OpenWindowedScreen(WindowID(0), 10, 70, 320, 200, 0, 0, 0,2 )
    LoadSprite(0, "Data/PureBasicLogo.bmp")
  Else
    MessageRequester("Error", "Can't open windowed screen!", 0)
    End
  EndIf

EndIf

SetFrameRate(60)
direction = 1
playerX = 1
playerY = 1

Repeat
  Repeat
    ; Always process all the events to flush the queue at every frame
    Event = WindowEvent()
    
    Select Event
      Case #PB_Event_CloseWindow
        Quit = 1
    
      Case #PB_Event_Gadget
        
        ; Do the normal application management here
        Gadget = EventGadget()
    
        Select Gadget
          Case 1
            InputReleased = 0
            ReleaseMouse(#False)
            SetGadgetText(4, "Press 'F1' to ungrab keyboard and mouse")

          Case 2, 3
            SetGadgetText(4, "Button "+Str(Gadget)+" pressed.")
        EndSelect
    
    EndSelect
    
  Until Event = 0 ; Quit the event loop only when no more events are available
  
  If InputReleased = 0

    ExamineMouse()

    ; do the sprite & screen management at every frame
    ExamineKeyboard()
    If KeyboardPushed(#PB_Key_Up)    And playerY > 0   : playerY -3 : EndIf  
    If KeyboardPushed(#PB_Key_Down)  And playerY < 280 : playerY +3 : EndIf  
    If KeyboardPushed(#PB_Key_Left)  And playerX > 0   : playerX -3 : EndIf  
    If KeyboardPushed(#PB_Key_Right) And playerX < 300 : playerX +3 : EndIf  

    If KeyboardPushed(#PB_Key_F1)
      ReleaseMouse(#True)
      InputReleased = 1
    EndIf
  EndIf
  
  ; Clear the screen and draw our sprites
  ClearScreen(RGB(0,0,0))
  ClipSprite(0, 0, 0, x, x/8)
  DisplaySprite(0, x, 100)
  DisplaySprite(0, x, x)
  DisplaySprite(0, 300-x, x)
  DisplaySprite(0, playerX, playerY)

  x + direction
  If x > 300 : direction = -1 : EndIf   ; moving back to the left with negative value
  If x < 0   : direction =  1 : EndIf   ; moving to the right with positive value
    
  FlipBuffers()       ; Inverse the buffers (the back become the front (visible)... and we can do the rendering on the back

Until  Quit Or KeyboardPushed(#PB_Key_Escape)

[blueznl]

Well, that code runs at max speed without any synchronization on my machine, no matter what parameter I provide as flipmode...

[Fred]

The DX9 windowed synchronization has been fixed.

[blueznl]

Ah! So it wasn't me after all I hope

Just FYI: I tried it with 4.40b5. If there's a new library I'm going to try it with that one.

[nco2k]

the example from djes runs awfully fast, since SetFrameRate() for dx9 is still broken. maybe thats blueznl's problem?

c ya,
nco2k

[Trond]

Yes, the frame rate isn't kept. It runs like it is trying to escape from David Hasselhoff!

[blueznl]

THen I'll just have to wait for PB v4.40b6

[djes]

What do you think I'm waiting for

[blueznl]

Winning lottery tickets?
Nekkid' double D pole dancers?
A new paintjob for both your Ferrari's?

[djes]

Tsss tsss! A date with Fred of course, or if he's not available, with Leonard Nimoy.

[blueznl]

You aim too low

[djes]

Well, as Carla married Nicolas Sarkozy, and as I can't afford this splendid vehicle , my dreams are now limited.