# cache-private.h

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    00001 /*
    00002   Copyright 1999-2009 ImageMagick Studio LLC, a non-profit organization
    00003   dedicated to making software imaging solutions freely available.
    00004
    00005   You may not use this file except in compliance with the License.
    00006   obtain a copy of the License at
    00007
    00008     http://www.imagemagick.org/script/license.php
    00009
    00010   Unless required by applicable law or agreed to in writing, software
    00011   distributed under the License is distributed on an "AS IS" BASIS,
    00012   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    00013   See the License for the specific language governing permissions and
    00014   limitations under the License.
    00015
    00016   MagickCore cache private methods.
    00017 */
    00018 #ifndef _MAGICKCORE_CACHE_PRIVATE_H
    00019 #define _MAGICKCORE_CACHE_PRIVATE_H
    00020
    00021 #if defined(__cplusplus) || defined(c_plusplus)
    00022 extern "C" {
    00023 #endif
    00024
    00025 #include <time.h>
    00026 #include "magick/semaphore.h"
    00027
    00028 typedef enum
    00029 {
    00030   UndefinedCache,
    00031   MemoryCache,
    00032   MapCache,
    00033   DiskCache
    00034 } CacheType;
    00035
    00036 typedef void
    00037   *Cache;
    00038
    00039 typedef const IndexPacket
    00040   *(*AcquireIndexesFromHandler)(const Image *);
    00041
    00042 typedef IndexPacket
    00043   *(*GetIndexesFromHandler)(const Image *);
    00044
    00045 typedef MagickBooleanType
    00046   (*SyncPixelHandler)(Image *);
    00047
    00048 typedef const PixelPacket
    00049   *(*AcquirePixelHandler)(const Image *,const VirtualPixelMethod,const long,
    00050     const long,const unsigned long,const unsigned long,ExceptionInfo *);
    00051
    00052 typedef PixelPacket
    00053   (*AcquireOnePixelFromHandler)(const Image *,const VirtualPixelMethod,
    00054     const long,const long,ExceptionInfo *);
    00055
    00056 typedef PixelPacket
    00057   (*GetOnePixelFromHandler)(Image *,const long,const long);
    00058
    00059 typedef PixelPacket
    00060   *(*GetPixelHandler)(Image *,const long,const long,const unsigned long,
    00061     const unsigned long);
    00062
    00063 typedef PixelPacket
    00064   *(*GetPixelsFromHandler)(const Image *);
    00065
    00066 typedef PixelPacket
    00067   *(*SetPixelHandler)(Image *,const long,const long,const unsigned long,
    00068     const unsigned long);
    00069
    00070 typedef void
    00071   (*DestroyPixelHandler)(Image *);
    00072
    00073 typedef struct _CacheMethods
    00074 {
    00075   AcquireIndexesFromHandler
    00076     acquire_indexes_from_handler;
    00077
    00078   AcquireOnePixelFromHandler
    00079     acquire_one_pixel_from_handler;
    00080
    00081   AcquirePixelHandler
    00082     acquire_pixel_handler;
    00083
    00084   DestroyPixelHandler
    00085     destroy_pixel_handler;
    00086
    00087   GetIndexesFromHandler
    00088     get_indexes_from_handler;
    00089
    00090   GetOnePixelFromHandler
    00091     get_one_pixel_from_handler;
    00092
    00093   GetPixelHandler
    00094     get_pixel_handler;
    00095
    00096   GetPixelsFromHandler
    00097     get_pixels_from_handler;
    00098
    00099   SetPixelHandler
    00100     set_pixel_handler;
    00101
    00102   SyncPixelHandler
    00103     sync_pixel_handler;
    00104 } CacheMethods;
    00105
    00106 typedef struct _NexusInfo NexusInfo;
    00107
    00108 typedef struct _CacheInfo
    00109 {
    00110   unsigned long
    00111     id;
    00112
    00113   NexusInfo
    00114     *nexus_info;
    00115
    00116   unsigned long
    00117     number_views;
    00118
    00119   ClassType
    00120     storage_class;
    00121
    00122   ColorspaceType
    00123     colorspace;
    00124
    00125   CacheType
    00126     type;
    00127
    00128   MagickBooleanType
    00129     mapped;
    00130
    00131   unsigned long
    00132     columns,
    00133     rows;
    00134
    00135   MagickOffsetType
    00136     offset;
    00137
    00138   MagickSizeType
    00139     length;
    00140
    00141   PixelPacket
    00142     *pixels;
    00143
    00144   IndexPacket
    00145     *indexes;
    00146
    00147   VirtualPixelMethod
    00148     virtual_pixel_method;
    00149
    00150   PixelPacket
    00151     virtual_pixel;
    00152
    00153   int
    00154     file;
    00155
    00156   MagickSizeType
    00157     serial_number;
    00158
    00159   char
    00160     filename[MaxTextExtent],
    00161     cache_filename[MaxTextExtent];
    00162
    00163   CacheMethods
    00164     methods;
    00165
    00166   MagickBooleanType
    00167     debug;
    00168
    00169   unsigned long
    00170     thread;
    00171
    00172   long
    00173     reference_count;
    00174
    00175   SemaphoreInfo
    00176     *semaphore;
    00177
    00178   unsigned long
    00179     signature;
    00180 } CacheInfo;
    00181
    00182 extern MagickExport Cache
    00183   DestroyCacheInfo(Cache),
    00184   ReferenceCache(Cache);
    00185
    00186 extern MagickExport ClassType
    00187   GetCacheClass(const Cache);
    00188
    00189 extern MagickExport ColorspaceType
    00190   GetCacheColorspace(const Cache);
    00191
    00192 extern MagickExport const IndexPacket
    00193   *AcquireNexusIndexes(const Cache,const unsigned long);
    00194
    00195 extern MagickExport IndexPacket
    00196   *GetNexusIndexes(const Cache,const unsigned long);
    00197
    00198 extern MagickExport MagickBooleanType
    00199   GetCacheInfo(Cache *);
    00200
    00201 extern MagickExport PixelPacket
    00202   *GetNexusPixels(const Cache,const unsigned long);
    00203
    00204 extern MagickExport unsigned long
    00205   GetNexus(Cache);
    00206
    00207 extern MagickExport void
    00208   CloneCacheMethods(Cache,const Cache),
    00209   DestroyCacheNexus(Cache,const unsigned long),
    00210   GetCacheMethods(CacheMethods *),
    00211   SetCacheMethods(Cache,CacheMethods *);
    00212
    00213 #if defined(__cplusplus) || defined(c_plusplus)
    00214 }
    00215 #endif
    00216
    00217 #endif