1 /* 2 * Copyright 2001-2010, Haiku. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * DarkWyrm <bpmagic@columbus.rr.com> 7 * Axel Dörfler, axeld@pinc-software.de 8 */ 9 #ifndef SERVER_BITMAP_H 10 #define SERVER_BITMAP_H 11 12 13 #include <GraphicsDefs.h> 14 #include <Rect.h> 15 #include <OS.h> 16 17 #include <Referenceable.h> 18 19 #include "ClientMemoryAllocator.h" 20 21 22 class BitmapManager; 23 class HWInterface; 24 class Overlay; 25 class ServerApp; 26 27 28 /*! \class ServerBitmap ServerBitmap.h 29 \brief Bitmap class used inside the server. 30 31 This class is not directly allocated or freed. Instead, it is 32 managed by the BitmapManager class. It is also the base class for 33 all cursors. Every BBitmap has a shadow ServerBitmap object. 34 */ 35 class ServerBitmap : public BReferenceable { 36 public: 37 inline bool IsValid() const 38 { return fBuffer != NULL; } 39 40 inline uint8* Bits() const 41 { return fBuffer; } 42 inline uint32 BitsLength() const 43 { return (uint32)(fBytesPerRow * fHeight); } 44 45 inline BRect Bounds() const 46 { return BRect(0, 0, fWidth - 1, fHeight - 1); } 47 inline int32 Width() const 48 { return fWidth; } 49 inline int32 Height() const 50 { return fHeight; } 51 52 inline int32 BytesPerRow() const 53 { return fBytesPerRow; } 54 55 inline color_space ColorSpace() const 56 { return fSpace; } 57 inline uint32 Flags() const 58 { return fFlags; } 59 60 //! Returns the identifier token for the bitmap 61 inline int32 Token() const 62 { return fToken; } 63 64 area_id Area() const; 65 uint32 AreaOffset() const; 66 67 void SetOverlay(::Overlay* overlay); 68 ::Overlay* Overlay() const; 69 70 void SetOwner(ServerApp* owner); 71 ServerApp* Owner() const; 72 73 //! Does a shallow copy of the bitmap passed to it 74 inline void ShallowCopy(const ServerBitmap *from); 75 76 status_t ImportBits(const void *bits, int32 bitsLength, 77 int32 bytesPerRow, color_space colorSpace); 78 status_t ImportBits(const void *bits, int32 bitsLength, 79 int32 bytesPerRow, color_space colorSpace, 80 BPoint from, BPoint to, int32 width, 81 int32 height); 82 83 void PrintToStream(); 84 85 protected: 86 friend class BitmapManager; 87 88 ServerBitmap(BRect rect, color_space space, 89 uint32 flags, int32 bytesPerRow = -1, 90 screen_id screen = B_MAIN_SCREEN_ID); 91 ServerBitmap(const ServerBitmap* bmp); 92 virtual ~ServerBitmap(); 93 94 void AllocateBuffer(); 95 96 protected: 97 ClientMemory fClientMemory; 98 AreaMemory* fMemory; 99 ::Overlay* fOverlay; 100 uint8* fBuffer; 101 102 int32 fWidth; 103 int32 fHeight; 104 int32 fBytesPerRow; 105 color_space fSpace; 106 uint32 fFlags; 107 108 ServerApp* fOwner; 109 int32 fToken; 110 }; 111 112 class UtilityBitmap : public ServerBitmap { 113 public: 114 UtilityBitmap(BRect rect, color_space space, 115 uint32 flags, int32 bytesperline = -1, 116 screen_id screen = B_MAIN_SCREEN_ID); 117 UtilityBitmap(const ServerBitmap* bmp); 118 119 UtilityBitmap(const uint8* alreadyPaddedData, 120 uint32 width, uint32 height, 121 color_space format); 122 123 virtual ~UtilityBitmap(); 124 }; 125 126 127 //! (only for server bitmaps) 128 void 129 ServerBitmap::ShallowCopy(const ServerBitmap* from) 130 { 131 if (!from) 132 return; 133 134 fBuffer = from->fBuffer; 135 fWidth = from->fWidth; 136 fHeight = from->fHeight; 137 fBytesPerRow = from->fBytesPerRow; 138 fSpace = from->fSpace; 139 fFlags = from->fFlags; 140 fToken = from->fToken; 141 } 142 143 #endif // SERVER_BITMAP_H 144