src/servers/app/RenderingBuffer.h

   1 // RenderingBuffer.h
   2
   3 #ifndef RENDERING_BUFFER_H
   4 #define RENDERING_BUFFER_H
   5
   6 #include <GraphicsDefs.h>
   7 #include "IntRect.h"
   8
   9 class RenderingBuffer {
  10  public:
  11                                                                 RenderingBuffer() {}
  12         virtual                                         ~RenderingBuffer() {}
  13
  14         virtual status_t                        InitCheck() const = 0;
  15
  16         virtual color_space                     ColorSpace() const = 0;
  17         virtual void*                           Bits() const = 0;
  18         virtual uint32                          BytesPerRow() const = 0;
  19         // the *count* of the pixels per line
  20         virtual uint32                          Width() const = 0;
  21         // the *count* of lines
  22         virtual uint32                          Height() const = 0;
  23
  24         inline  uint32                          BitsLength() const
  25                                                                         { return Height() * BytesPerRow(); }
  26
  27         inline  IntRect                         Bounds() const
  28                                                                         { return IntRect(0, 0, Width() - 1,
  29                                                                                 Height() - 1); }
  30 };
  31
  32 #endif // RENDERING_BUFFER_H