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root/cebix/SheepShaver/src/include/thunks.h
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Comparing SheepShaver/src/include/thunks.h (file contents):
Revision 1.2 by gbeauche, 2003-12-05T12:36:11Z vs.
Revision 1.10 by gbeauche, 2004-11-22T21:22:58Z

# Line 51 | Line 51 | enum {
51    NATIVE_GET_IND_RESOURCE,
52    NATIVE_GET_1_IND_RESOURCE,
53    NATIVE_R_GET_RESOURCE,
54  NATIVE_DISABLE_INTERRUPT,
55  NATIVE_ENABLE_INTERRUPT,
54    NATIVE_MAKE_EXECUTABLE,
55 +  NATIVE_CHECK_LOAD_INVOC,
56 +  NATIVE_SYNC_HOOK,
57 +  NATIVE_BITBLT_HOOK,
58 +  NATIVE_FILLRECT_HOOK,
59 +  NATIVE_BITBLT,
60 +  NATIVE_INVRECT,
61 +  NATIVE_FILLRECT,
62    NATIVE_OP_MAX
63   };
64  
65   // Initialize the thunks system
66   extern bool ThunksInit(void);
67  
68 + // Exit the thunks system
69 + extern void ThunksExit(void);
70 +
71   // Return the fake PowerPC opcode to handle specified native code
72   #if EMULATED_PPC
73   extern uint32 NativeOpcode(int selector);
# Line 71 | Line 79 | extern uint32 NativeTVECT(int selector);
79   // Return the native function address
80   extern uint32 NativeFunction(int selector);
81  
82 + // Return the routine descriptor address of the native function
83 + extern uint32 NativeRoutineDescriptor(int selector);
84 +
85  
86   /*
87   *  Helpers to share 32-bit addressable data with MacOS
# Line 79 | Line 90 | extern uint32 NativeFunction(int selecto
90   class SheepMem {
91          static uint32 align(uint32 size);
92   protected:
93 +        static uint32  page_size;
94          static uintptr zero_page;
95          static uintptr base;
96 <        static uintptr top;
97 <        static const uint32 size = 0x40000;
96 >        static uintptr data;
97 >        static uintptr proc;
98 >        static const uint32 size = 0x80000; // 512 KB
99   public:
100          static bool Init(void);
101          static void Exit(void);
102 <        static uintptr ZeroPage();
103 <        static uintptr Reserve(uint32 size);
102 >        static uint32 PageSize();
103 >        static uint32 ZeroPage();
104 >        static uint32 Reserve(uint32 size);
105          static void Release(uint32 size);
106 +        static uint32 ReserveProc(uint32 size);
107          friend class SheepVar;
108   };
109  
# Line 98 | Line 113 | inline uint32 SheepMem::align(uint32 siz
113          return (size + 3) & -4;
114   }
115  
116 < inline uintptr SheepMem::ZeroPage()
116 > inline uint32 SheepMem::PageSize()
117 > {
118 >  return page_size;
119 > }
120 >
121 > inline uint32 SheepMem::ZeroPage()
122   {
123    return zero_page;
124   }
125  
126 < inline uintptr SheepMem::Reserve(uint32 size)
126 > inline uint32 SheepMem::Reserve(uint32 size)
127   {
128 <        top -= align(size);
129 <        assert(top >= base);
130 <        return top;
128 >        data -= align(size);
129 >        assert(data >= proc);
130 >        return data;
131   }
132  
133   inline void SheepMem::Release(uint32 size)
134   {
135 <        top += align(size);
135 >        data += align(size);
136 > }
137 >
138 > inline uint32 SheepMem::ReserveProc(uint32 size)
139 > {
140 >        uint32 mproc = proc;
141 >        proc += align(size);
142 >        assert(proc < data);
143 >        return mproc;
144 > }
145 >
146 > static inline uint32 SheepProc(const uint8 *proc, uint32 proc_size)
147 > {
148 >        uint32 mac_proc = SheepMem::ReserveProc(proc_size);
149 >        Host2Mac_memcpy(mac_proc, proc, proc_size);
150 >        return mac_proc;
151   }
152  
153   class SheepVar
154   {
155 <        uintptr m_base;
156 <        uint32  m_size;
155 >        uint32 m_base;
156 >        uint32 m_size;
157   public:
158          SheepVar(uint32 requested_size);
159          ~SheepVar() { SheepMem::Release(m_size); }
160 <        uintptr addr() const { return m_base; }
126 <        void *ptr() const { return (void *)addr(); }
160 >        uint32 addr() const { return m_base; }
161   };
162  
163   inline SheepVar::SheepVar(uint32 requested_size)
# Line 134 | Line 168 | inline SheepVar::SheepVar(uint32 request
168  
169   // TODO: optimize for 32-bit platforms
170  
171 < template< int size >
171 > template< int requested_size >
172   struct SheepArray : public SheepVar
173   {
174 <        SheepArray() : SheepVar(size) { }
141 <        uint8 *ptr() const { return (uint8 *)addr(); }
174 >        SheepArray() : SheepVar(requested_size) { }
175   };
176  
177   struct SheepVar32 : public SheepVar
# Line 147 | Line 180 | struct SheepVar32 : public SheepVar
180          SheepVar32(uint32 value) : SheepVar(4) { set_value(value); }
181          uint32 value() const { return ReadMacInt32(addr()); }
182          void set_value(uint32 v) { WriteMacInt32(addr(), v); }
150        uint32 *ptr() const { return (uint32 *)addr(); }
183   };
184  
185   struct SheepString : public SheepVar
186   {
187          SheepString(const char *str) : SheepVar(strlen(str) + 1)
188 <                { if (str) strcpy((char *)addr(), str); else WriteMacInt8(addr(), 0); }
188 >                { if (str) strcpy(value(), str); else WriteMacInt8(addr(), 0); }
189          char *value() const
190 <                { return (char *)addr(); }
159 <        char *ptr() const
160 <                { return (char *)addr(); }
190 >                { return (char *)Mac2HostAddr(addr()); }
191   };
192  
193   #endif

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