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| 4680 | right-hear | 1 | /******************************************************************* |
| 2 | * |
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| 3 | * ttmemory.h 1.2 |
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| 4 | * |
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| 5 | * Memory management component (specification). |
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| 6 | * |
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| 7 | * Copyright 1996-1999 by |
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| 8 | * David Turner, Robert Wilhelm, and Werner Lemberg. |
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| 9 | * |
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| 10 | * This file is part of the FreeType project, and may only be used |
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| 11 | * modified and distributed under the terms of the FreeType project |
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| 12 | * license, LICENSE.TXT. By continuing to use, modify, or distribute |
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| 13 | * this file you indicate that you have read the license and |
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| 14 | * understand and accept it fully. |
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| 15 | * |
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| 16 | * Changes between 1.2 and 1.1: |
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| 17 | * |
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| 18 | * - the font pool is gone! All allocations are now performed |
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| 19 | * with malloc() and free(). |
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| 20 | * |
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| 21 | * - introduced the FREE() macro and the Free() function for |
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| 22 | * future use in destructors. |
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| 23 | * |
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| 24 | * - Init_FontPool() is now a macro to allow the compilation of |
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| 25 | * 'legacy' applications (all four test programs have been updated). |
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| 26 | * |
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| 27 | ******************************************************************/ |
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| 28 | |||
| 29 | #ifndef TTMEMORY_H |
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| 30 | #define TTMEMORY_H |
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| 31 | |||
| 32 | #include "ttconfig.h" |
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| 33 | #include "tttypes.h" |
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| 34 | #include |
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| 35 | |||
| 36 | |||
| 37 | #ifdef __cplusplus |
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| 38 | extern "C" { |
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| 39 | #endif |
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| 40 | |||
| 41 | #define MEM_Set( dest, byte, count ) memset( dest, byte, count ) |
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| 42 | |||
| 43 | #ifdef HAVE_MEMCPY |
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| 44 | #define MEM_Copy( dest, source, count ) memcpy( dest, source, count ) |
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| 45 | #else |
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| 46 | #define MEM_Copy( dest, source, count ) bcopy( source, dest, count ) |
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| 47 | #endif |
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| 48 | |||
| 49 | #ifdef HAVE_MEMMOVE |
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| 50 | #define MEM_Move( dest, source, count ) memmove( dest, source, count ) |
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| 51 | #else |
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| 52 | #define MEM_Move( dest, source, count ) bcopy( source, dest, count ) |
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| 53 | #endif |
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| 54 | |||
| 55 | |||
| 56 | #define MEM_Alloc( _pointer_, _size_ ) \ |
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| 57 | TT_Alloc( _size_, (void**)&(_pointer_) ) |
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| 58 | |||
| 59 | #define MEM_Realloc( _pointer_, _size_ ) \ |
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| 60 | TT_Realloc( _size_, (void**)&(_pointer_) ) |
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| 61 | |||
| 62 | #define ALLOC( _pointer_, _size_ ) \ |
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| 63 | ( ( error = MEM_Alloc( _pointer_, _size_ ) ) != TT_Err_Ok ) |
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| 64 | |||
| 65 | #define ALLOC_ARRAY( _pointer_, _count_, _type_ ) \ |
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| 66 | ( ( error = MEM_Alloc( _pointer_, \ |
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| 67 | (_count_) * sizeof ( _type_ ) ) ) != TT_Err_Ok ) |
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| 68 | |||
| 69 | #define REALLOC( _pointer_, _size_ ) \ |
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| 70 | ( ( error = MEM_Realloc( _pointer_, _size_ ) ) != TT_Err_Ok ) |
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| 71 | |||
| 72 | #define REALLOC_ARRAY( _pointer_, _count_, _type_ ) \ |
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| 73 | ( (error = MEM_Realloc( _pointer_, \ |
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| 74 | (_count_) * sizeof ( _type_ ) ) ) != TT_Err_Ok ) |
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| 75 | |||
| 76 | #define FREE( _pointer_ ) \ |
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| 77 | TT_Free( (void**)&(_pointer_) ) |
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| 78 | |||
| 79 | |||
| 80 | /* Allocate a block of memory of 'Size' bytes from the heap, and */ |
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| 81 | /* sets the pointer '*P' to its address. If 'Size' is 0, or in */ |
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| 82 | /* case of error, the pointer is always set to NULL. */ |
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| 83 | |||
| 84 | EXPORT_DEF |
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| 85 | TT_Error TT_Alloc( ULong Size, void** P ); |
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| 86 | |||
| 87 | #ifdef TT_CONFIG_OPTION_EXTEND_ENGINE |
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| 88 | |||
| 89 | /* Reallocates a block of memory pointed to by '*P' to 'Size' */ |
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| 90 | /* bytes from the heap, possibly changing '*P'. If 'Size' is 0, */ |
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| 91 | /* TT_Free() is called, if '*P' is NULL, TT_Alloc() is called. */ |
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| 92 | /* '*P' is freed (if it's non-NULL) in case of error. */ |
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| 93 | |||
| 94 | EXPORT_DEF |
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| 95 | TT_Error TT_Realloc( ULong Size, void** P ); |
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| 96 | |||
| 97 | #endif /* TT_CONFIG_OPTION_EXTEND_ENGINE */ |
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| 98 | |||
| 99 | /* Releases a block that was previously allocated through Alloc. */ |
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| 100 | /* Note that the function returns successfully when P or *P are */ |
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| 101 | /* already NULL. The pointer '*P' is set to NULL on exit in */ |
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| 102 | /* case of success. */ |
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| 103 | |||
| 104 | EXPORT_DEF |
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| 105 | TT_Error TT_Free( void** P ); |
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| 106 | |||
| 107 | |||
| 108 | /* For "legacy" applications, that should be re-coded. */ |
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| 109 | /* Note that this won't release the previously allocated font pool. */ |
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| 110 | |||
| 111 | #define Init_FontPool( x, y ) while( 0 ) { } |
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| 112 | |||
| 113 | |||
| 114 | LOCAL_DEF TT_Error TTMemory_Init( void ); |
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| 115 | LOCAL_DEF TT_Error TTMemory_Done( void ); |
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| 116 | |||
| 117 | |||
| 118 | #ifdef __cplusplus |
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| 119 | } |
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| 120 | #endif |
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| 121 | |||
| 122 | #endif /* TTMEMORY_H */ |
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| 123 | |||
| 124 | |||
| 125 | /* END */ |