src/servers/app/drawing/Overlay.h

   1 /*
   2  * Copyright 2006-2007, Haiku, Inc.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Axel Dörfler, axeld@pinc-software.de
   7  */
   8 #ifndef OVERLAY_H
   9 #define OVERLAY_H
  10
  11
  12 #include <InterfaceDefs.h>
  13
  14 #include <video_overlay.h>
  15
  16
  17 class HWInterface;
  18 class ServerBitmap;
  19 struct overlay_client_data;
  20
  21
  22 class Overlay {
  23         public:
  24                 Overlay(HWInterface& interface, ServerBitmap* bitmap,
  25                         overlay_token token);
  26                 ~Overlay();
  27
  28                 status_t InitCheck() const;
  29
  30                 status_t Suspend(ServerBitmap* bitmap, bool needTemporary);
  31                 status_t Resume(ServerBitmap* bitmap);
  32
  33                 void SetClientData(overlay_client_data* clientData);
  34                 void SetFlags(uint32 flags);
  35                 void TakeOverToken(Overlay* other);
  36
  37                 const overlay_buffer* OverlayBuffer() const;
  38                 overlay_client_data* ClientData() const;
  39                 overlay_token OverlayToken() const;
  40
  41                 void SetColorSpace(uint32 colorSpace);
  42
  43                 const overlay_window* OverlayWindow() const
  44                         { return &fWindow; }
  45                 const overlay_view* OverlayView() const
  46                         { return &fView; }
  47
  48                 sem_id Semaphore() const
  49                         { return fSemaphore; }
  50
  51                 const rgb_color& Color() const
  52                         { return fColor; }
  53
  54                 void Configure(const BRect& source, const BRect& destination);
  55                 void Hide();
  56
  57         private:
  58                 void _FreeBuffer();
  59                 status_t _AllocateBuffer(ServerBitmap* bitmap);
  60
  61                 HWInterface&                    fHWInterface;
  62                 const overlay_buffer*   fOverlayBuffer;
  63                 overlay_client_data*    fClientData;
  64                 overlay_token                   fOverlayToken;
  65                 overlay_view                    fView;
  66                 overlay_window                  fWindow;
  67                 sem_id                                  fSemaphore;
  68                 rgb_color                               fColor;
  69 };
  70
  71 #endif  // OVERLAY_H