Welcome to mirror list, hosted at ThFree Co, Russian Federation.

clew.c « src « clew « extern - git.blender.org/blender.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
blob: dbdddfc03320f7289631c6580d2e6e39d954d5c4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
//////////////////////////////////////////////////////////////////////////
//  Copyright (c) 2009 Organic Vectory B.V.
//  Written by George van Venrooij
//
//  Distributed under the Boost Software License, Version 1.0.
//  (See accompanying file license.txt)
//////////////////////////////////////////////////////////////////////////

#include "clew.h"

#ifdef _WIN32
    #define WIN32_LEAN_AND_MEAN
    #define VC_EXTRALEAN
    #include <windows.h>

    typedef HMODULE             CLEW_DYNLIB_HANDLE;

    #define CLEW_DYNLIB_OPEN    LoadLibraryA
    #define CLEW_DYNLIB_CLOSE   FreeLibrary
    #define CLEW_DYNLIB_IMPORT  GetProcAddress
#else
    #include <dlfcn.h>
    
    typedef void*                   CLEW_DYNLIB_HANDLE;

    #define CLEW_DYNLIB_OPEN(path)  dlopen(path, RTLD_NOW | RTLD_GLOBAL)
    #define CLEW_DYNLIB_CLOSE       dlclose
    #define CLEW_DYNLIB_IMPORT      dlsym
#endif

#include <stdlib.h>

//! \brief module handle
static CLEW_DYNLIB_HANDLE module = NULL;

//  Variables holding function entry points
PFNCLGETPLATFORMIDS                 __clewGetPlatformIDs                = NULL;
PFNCLGETPLATFORMINFO                __clewGetPlatformInfo               = NULL;
PFNCLGETDEVICEIDS                   __clewGetDeviceIDs                  = NULL;
PFNCLGETDEVICEINFO                  __clewGetDeviceInfo                 = NULL;
PFNCLCREATESUBDEVICES               __clewCreateSubDevices              = NULL;
PFNCLRETAINDEVICE                   __clewRetainDevice                  = NULL;
PFNCLRELEASEDEVICE                  __clewReleaseDevice                 = NULL;
PFNCLCREATECONTEXT                  __clewCreateContext                 = NULL;
PFNCLCREATECONTEXTFROMTYPE          __clewCreateContextFromType         = NULL;
PFNCLRETAINCONTEXT                  __clewRetainContext                 = NULL;
PFNCLRELEASECONTEXT                 __clewReleaseContext                = NULL;
PFNCLGETCONTEXTINFO                 __clewGetContextInfo                = NULL;
PFNCLCREATECOMMANDQUEUE             __clewCreateCommandQueue            = NULL;
PFNCLRETAINCOMMANDQUEUE             __clewRetainCommandQueue            = NULL;
PFNCLRELEASECOMMANDQUEUE            __clewReleaseCommandQueue           = NULL;
PFNCLGETCOMMANDQUEUEINFO            __clewGetCommandQueueInfo           = NULL;
#ifdef CL_USE_DEPRECATED_OPENCL_1_0_APIS
PFNCLSETCOMMANDQUEUEPROPERTY        __clewSetCommandQueueProperty       = NULL;
#endif
PFNCLCREATEBUFFER                   __clewCreateBuffer                  = NULL;
PFNCLCREATESUBBUFFER                __clewCreateSubBuffer               = NULL;
PFNCLCREATEIMAGE                    __clewCreateImage                   = NULL;
PFNCLRETAINMEMOBJECT                __clewRetainMemObject               = NULL;
PFNCLRELEASEMEMOBJECT               __clewReleaseMemObject              = NULL;
PFNCLGETSUPPORTEDIMAGEFORMATS       __clewGetSupportedImageFormats      = NULL;
PFNCLGETMEMOBJECTINFO               __clewGetMemObjectInfo              = NULL;
PFNCLGETIMAGEINFO                   __clewGetImageInfo                  = NULL;
PFNCLSETMEMOBJECTDESTRUCTORCALLBACK __clewSetMemObjectDestructorCallback = NULL;
PFNCLCREATESAMPLER                  __clewCreateSampler                 = NULL;
PFNCLRETAINSAMPLER                  __clewRetainSampler                 = NULL;
PFNCLRELEASESAMPLER                 __clewReleaseSampler                = NULL;
PFNCLGETSAMPLERINFO                 __clewGetSamplerInfo                = NULL;
PFNCLCREATEPROGRAMWITHSOURCE        __clewCreateProgramWithSource       = NULL;
PFNCLCREATEPROGRAMWITHBINARY        __clewCreateProgramWithBinary       = NULL;
PFNCLCREATEPROGRAMWITHBUILTINKERNELS __clewCreateProgramWithBuiltInKernels = NULL;
PFNCLRETAINPROGRAM                  __clewRetainProgram                 = NULL;
PFNCLRELEASEPROGRAM                 __clewReleaseProgram                = NULL;
PFNCLBUILDPROGRAM                   __clewBuildProgram                  = NULL;
PFNCLGETPROGRAMINFO                 __clewGetProgramInfo                = NULL;
PFNCLGETPROGRAMBUILDINFO            __clewGetProgramBuildInfo           = NULL;
PFNCLCREATEKERNEL                   __clewCreateKernel                  = NULL;
PFNCLCREATEKERNELSINPROGRAM         __clewCreateKernelsInProgram        = NULL;
PFNCLRETAINKERNEL                   __clewRetainKernel                  = NULL;
PFNCLRELEASEKERNEL                  __clewReleaseKernel                 = NULL;
PFNCLSETKERNELARG                   __clewSetKernelArg                  = NULL;
PFNCLGETKERNELINFO                  __clewGetKernelInfo                 = NULL;
PFNCLGETKERNELWORKGROUPINFO         __clewGetKernelWorkGroupInfo        = NULL;
PFNCLWAITFOREVENTS                  __clewWaitForEvents                 = NULL;
PFNCLGETEVENTINFO                   __clewGetEventInfo                  = NULL;
PFNCLCREATEUSEREVENT                __clewCreateUserEvent               = NULL;
PFNCLRETAINEVENT                    __clewRetainEvent                   = NULL;
PFNCLRELEASEEVENT                   __clewReleaseEvent                  = NULL;
PFNCLSETUSEREVENTSTATUS             __clewSetUserEventStatus            = NULL;
PFNCLSETEVENTCALLBACK               __clewSetEventCallback              = NULL;
PFNCLGETEVENTPROFILINGINFO          __clewGetEventProfilingInfo         = NULL;
PFNCLFLUSH                          __clewFlush                         = NULL;
PFNCLFINISH                         __clewFinish                        = NULL;
PFNCLENQUEUEREADBUFFER              __clewEnqueueReadBuffer             = NULL;
PFNCLENQUEUEREADBUFFERRECT          __clewEnqueueReadBufferRect         = NULL;
PFNCLENQUEUEWRITEBUFFER             __clewEnqueueWriteBuffer            = NULL;
PFNCLENQUEUEWRITEBUFFERRECT         __clewEnqueueWriteBufferRect        = NULL;
PFNCLENQUEUECOPYBUFFER              __clewEnqueueCopyBuffer             = NULL;
PFNCLENQUEUEREADIMAGE               __clewEnqueueReadImage              = NULL;
PFNCLENQUEUEWRITEIMAGE              __clewEnqueueWriteImage             = NULL;
PFNCLENQUEUECOPYIMAGE               __clewEnqueueCopyImage              = NULL;
PFNCLENQUEUECOPYBUFFERRECT          __clewEnqueueCopyBufferRect         = NULL;
PFNCLENQUEUECOPYIMAGETOBUFFER       __clewEnqueueCopyImageToBuffer      = NULL;
PFNCLENQUEUECOPYBUFFERTOIMAGE       __clewEnqueueCopyBufferToImage      = NULL;
PFNCLENQUEUEMAPBUFFER               __clewEnqueueMapBuffer              = NULL;
PFNCLENQUEUEMAPIMAGE                __clewEnqueueMapImage               = NULL;
PFNCLENQUEUEUNMAPMEMOBJECT          __clewEnqueueUnmapMemObject         = NULL;
PFNCLENQUEUENDRANGEKERNEL           __clewEnqueueNDRangeKernel          = NULL;
PFNCLENQUEUETASK                    __clewEnqueueTask                   = NULL;
PFNCLENQUEUENATIVEKERNEL            __clewEnqueueNativeKernel           = NULL;



PFNCLGETEXTENSIONFUNCTIONADDRESSFORPLATFORM __clewGetExtensionFunctionAddressForPlatform = NULL;

#ifdef CL_USE_DEPRECATED_OPENCL_1_1_APIS
PFNCLCREATEIMAGE2D                  __clewCreateImage2D                 = NULL;
PFNCLCREATEIMAGE3D                  __clewCreateImage3D                 = NULL;
PFNCLENQUEUEMARKER                  __clewEnqueueMarker                 = NULL;
PFNCLENQUEUEWAITFOREVENTS           __clewEnqueueWaitForEvents          = NULL;
PFNCLENQUEUEBARRIER                 __clewEnqueueBarrier                = NULL;
PFNCLUNLOADCOMPILER                 __clewUnloadCompiler                = NULL;
PFNCLGETEXTENSIONFUNCTIONADDRESS    __clewGetExtensionFunctionAddress   = NULL;
#endif

/* cl_gl */
PFNCLCREATEFROMGLBUFFER             __clewCreateFromGLBuffer            = NULL;
PFNCLCREATEFROMGLTEXTURE            __clewCreateFromGLTexture           = NULL;
PFNCLCREATEFROMGLRENDERBUFFER       __clewCreateFromGLRenderbuffer      = NULL;
PFNCLGETGLOBJECTINFO                __clewGetGLObjectInfo               = NULL;
PFNCLGETGLTEXTUREINFO               __clewGetGLTextureInfo              = NULL;
PFNCLENQUEUEACQUIREGLOBJECTS        __clewEnqueueAcquireGLObjects       = NULL;
PFNCLENQUEUERELEASEGLOBJECTS        __clewEnqueueReleaseGLObjects       = NULL;
#ifdef CL_USE_DEPRECATED_OPENCL_1_1_APIS
PFNCLCREATEFROMGLTEXTURE2D          __clewCreateFromGLTexture2D         = NULL;
PFNCLCREATEFROMGLTEXTURE3D          __clewCreateFromGLTexture3D         = NULL;
#endif
PFNCLGETGLCONTEXTINFOKHR            __clewGetGLContextInfoKHR           = NULL;

static CLEW_DYNLIB_HANDLE dynamic_library_open_find(const char **paths) {
  int i = 0;
  while (paths[i] != NULL) {
      CLEW_DYNLIB_HANDLE lib = CLEW_DYNLIB_OPEN(paths[i]);
      if (lib != NULL) {
        return lib;
      }
      ++i;
  }
  return NULL;
}

static void clewExit(void)
{
    if (module != NULL)
    {
        //  Ignore errors
        CLEW_DYNLIB_CLOSE(module);
        module = NULL;
    }
}

int clewInit()
{
#ifdef _WIN32
    const char *paths[] = {"OpenCL.dll", NULL};
#elif defined(__APPLE__)
    const char *paths[] = {"/Library/Frameworks/OpenCL.framework/OpenCL", NULL};
#else
    const char *paths[] = {"libOpenCL.so",
                           "libOpenCL.so.0",
                           "libOpenCL.so.1",
                           "libOpenCL.so.2",
                           NULL};
#endif

    int error = 0;

    //  Check if already initialized
    if (module != NULL)
    {
        return CLEW_SUCCESS;
    }

    //  Load library
    module = dynamic_library_open_find(paths);

    //  Check for errors
    if (module == NULL)
    {
        return CLEW_ERROR_OPEN_FAILED;
    }

    //  Set unloading
    error = atexit(clewExit);

    if (error)
    {
        //  Failure queuing atexit, shutdown with error
        CLEW_DYNLIB_CLOSE(module);
        module = NULL;

        return CLEW_ERROR_ATEXIT_FAILED;
    }

    //  Determine function entry-points
    __clewGetPlatformIDs                = (PFNCLGETPLATFORMIDS              )CLEW_DYNLIB_IMPORT(module, "clGetPlatformIDs");
    __clewGetPlatformInfo               = (PFNCLGETPLATFORMINFO             )CLEW_DYNLIB_IMPORT(module, "clGetPlatformInfo");
    __clewGetDeviceIDs                  = (PFNCLGETDEVICEIDS                )CLEW_DYNLIB_IMPORT(module, "clGetDeviceIDs");
    __clewGetDeviceInfo                 = (PFNCLGETDEVICEINFO               )CLEW_DYNLIB_IMPORT(module, "clGetDeviceInfo");
    __clewCreateSubDevices              = (PFNCLCREATESUBDEVICES            )CLEW_DYNLIB_IMPORT(module, "clCreateSubDevices");
    __clewRetainDevice                  = (PFNCLRETAINDEVICE                )CLEW_DYNLIB_IMPORT(module, "clRetainDevice");
    __clewReleaseDevice                 = (PFNCLRELEASEDEVICE               )CLEW_DYNLIB_IMPORT(module, "clReleaseDevice");
    __clewCreateContext                 = (PFNCLCREATECONTEXT               )CLEW_DYNLIB_IMPORT(module, "clCreateContext");
    __clewCreateContextFromType         = (PFNCLCREATECONTEXTFROMTYPE       )CLEW_DYNLIB_IMPORT(module, "clCreateContextFromType");
    __clewRetainContext                 = (PFNCLRETAINCONTEXT               )CLEW_DYNLIB_IMPORT(module, "clRetainContext");
    __clewReleaseContext                = (PFNCLRELEASECONTEXT              )CLEW_DYNLIB_IMPORT(module, "clReleaseContext");
    __clewGetContextInfo                = (PFNCLGETCONTEXTINFO              )CLEW_DYNLIB_IMPORT(module, "clGetContextInfo");
    __clewCreateCommandQueue            = (PFNCLCREATECOMMANDQUEUE          )CLEW_DYNLIB_IMPORT(module, "clCreateCommandQueue");
    __clewRetainCommandQueue            = (PFNCLRETAINCOMMANDQUEUE          )CLEW_DYNLIB_IMPORT(module, "clRetainCommandQueue");
    __clewReleaseCommandQueue           = (PFNCLRELEASECOMMANDQUEUE         )CLEW_DYNLIB_IMPORT(module, "clReleaseCommandQueue");
    __clewGetCommandQueueInfo           = (PFNCLGETCOMMANDQUEUEINFO         )CLEW_DYNLIB_IMPORT(module, "clGetCommandQueueInfo");
#ifdef CL_USE_DEPRECATED_OPENCL_1_0_APIS
    __clewSetCommandQueueProperty       = (PFNCLSETCOMMANDQUEUEPROPERTY     )CLEW_DYNLIB_IMPORT(module, "clSetCommandQueueProperty");
#endif
    __clewCreateBuffer                  = (PFNCLCREATEBUFFER                )CLEW_DYNLIB_IMPORT(module, "clCreateBuffer");
    __clewCreateSubBuffer               = (PFNCLCREATESUBBUFFER             )CLEW_DYNLIB_IMPORT(module, "clCreateSubBuffer");
    __clewCreateImage                   = (PFNCLCREATEIMAGE                 )CLEW_DYNLIB_IMPORT(module, "clCreateImage");
    __clewRetainMemObject               = (PFNCLRETAINMEMOBJECT             )CLEW_DYNLIB_IMPORT(module, "clRetainMemObject");
    __clewReleaseMemObject              = (PFNCLRELEASEMEMOBJECT            )CLEW_DYNLIB_IMPORT(module, "clReleaseMemObject");
    __clewGetSupportedImageFormats      = (PFNCLGETSUPPORTEDIMAGEFORMATS    )CLEW_DYNLIB_IMPORT(module, "clGetSupportedImageFormats");
    __clewGetMemObjectInfo              = (PFNCLGETMEMOBJECTINFO            )CLEW_DYNLIB_IMPORT(module, "clGetMemObjectInfo");
    __clewGetImageInfo                  = (PFNCLGETIMAGEINFO                )CLEW_DYNLIB_IMPORT(module, "clGetImageInfo");
    __clewSetMemObjectDestructorCallback = (PFNCLSETMEMOBJECTDESTRUCTORCALLBACK)CLEW_DYNLIB_IMPORT(module, "clSetMemObjectDestructorCallback");
    __clewCreateSampler                 = (PFNCLCREATESAMPLER               )CLEW_DYNLIB_IMPORT(module, "clCreateSampler");
    __clewRetainSampler                 = (PFNCLRETAINSAMPLER               )CLEW_DYNLIB_IMPORT(module, "clRetainSampler");
    __clewReleaseSampler                = (PFNCLRELEASESAMPLER              )CLEW_DYNLIB_IMPORT(module, "clReleaseSampler");
    __clewGetSamplerInfo                = (PFNCLGETSAMPLERINFO              )CLEW_DYNLIB_IMPORT(module, "clGetSamplerInfo");
    __clewCreateProgramWithSource       = (PFNCLCREATEPROGRAMWITHSOURCE     )CLEW_DYNLIB_IMPORT(module, "clCreateProgramWithSource");
    __clewCreateProgramWithBinary       = (PFNCLCREATEPROGRAMWITHBINARY     )CLEW_DYNLIB_IMPORT(module, "clCreateProgramWithBinary");
    __clewCreateProgramWithBuiltInKernels =(PFNCLCREATEPROGRAMWITHBUILTINKERNELS)CLEW_DYNLIB_IMPORT(module, "clCreateProgramWithBuiltInKernels");
    __clewRetainProgram                 = (PFNCLRETAINPROGRAM               )CLEW_DYNLIB_IMPORT(module, "clRetainProgram");
    __clewReleaseProgram                = (PFNCLRELEASEPROGRAM              )CLEW_DYNLIB_IMPORT(module, "clReleaseProgram");
    __clewBuildProgram                  = (PFNCLBUILDPROGRAM                )CLEW_DYNLIB_IMPORT(module, "clBuildProgram");

    __clewGetProgramInfo                = (PFNCLGETPROGRAMINFO              )CLEW_DYNLIB_IMPORT(module, "clGetProgramInfo");
    __clewGetProgramBuildInfo           = (PFNCLGETPROGRAMBUILDINFO         )CLEW_DYNLIB_IMPORT(module, "clGetProgramBuildInfo");
    __clewCreateKernel                  = (PFNCLCREATEKERNEL                )CLEW_DYNLIB_IMPORT(module, "clCreateKernel");
    __clewCreateKernelsInProgram        = (PFNCLCREATEKERNELSINPROGRAM      )CLEW_DYNLIB_IMPORT(module, "clCreateKernelsInProgram");
    __clewRetainKernel                  = (PFNCLRETAINKERNEL                )CLEW_DYNLIB_IMPORT(module, "clRetainKernel");
    __clewReleaseKernel                 = (PFNCLRELEASEKERNEL               )CLEW_DYNLIB_IMPORT(module, "clReleaseKernel");
    __clewSetKernelArg                  = (PFNCLSETKERNELARG                )CLEW_DYNLIB_IMPORT(module, "clSetKernelArg");
    __clewGetKernelInfo                 = (PFNCLGETKERNELINFO               )CLEW_DYNLIB_IMPORT(module, "clGetKernelInfo");
    __clewGetKernelWorkGroupInfo        = (PFNCLGETKERNELWORKGROUPINFO      )CLEW_DYNLIB_IMPORT(module, "clGetKernelWorkGroupInfo");
    __clewWaitForEvents                 = (PFNCLWAITFOREVENTS               )CLEW_DYNLIB_IMPORT(module, "clWaitForEvents");
    __clewGetEventInfo                  = (PFNCLGETEVENTINFO                )CLEW_DYNLIB_IMPORT(module, "clGetEventInfo");
    __clewCreateUserEvent               = (PFNCLCREATEUSEREVENT             )CLEW_DYNLIB_IMPORT(module, "clCreateUserEvent");
    __clewRetainEvent                   = (PFNCLRETAINEVENT                 )CLEW_DYNLIB_IMPORT(module, "clRetainEvent");
    __clewReleaseEvent                  = (PFNCLRELEASEEVENT                )CLEW_DYNLIB_IMPORT(module, "clReleaseEvent");
    __clewSetUserEventStatus            = (PFNCLSETUSEREVENTSTATUS          )CLEW_DYNLIB_IMPORT(module, "clSetUserEventStatus");
    __clewSetEventCallback              = (PFNCLSETEVENTCALLBACK            )CLEW_DYNLIB_IMPORT(module, "clSetEventCallback");
    __clewGetEventProfilingInfo         = (PFNCLGETEVENTPROFILINGINFO       )CLEW_DYNLIB_IMPORT(module, "clGetEventProfilingInfo");
    __clewFlush                         = (PFNCLFLUSH                       )CLEW_DYNLIB_IMPORT(module, "clFlush");
    __clewFinish                        = (PFNCLFINISH                      )CLEW_DYNLIB_IMPORT(module, "clFinish");
    __clewEnqueueReadBuffer             = (PFNCLENQUEUEREADBUFFER           )CLEW_DYNLIB_IMPORT(module, "clEnqueueReadBuffer");
    __clewEnqueueReadBufferRect         = (PFNCLENQUEUEREADBUFFERRECT       )CLEW_DYNLIB_IMPORT(module, "clEnqueueReadBufferRect");
    __clewEnqueueWriteBuffer            = (PFNCLENQUEUEWRITEBUFFER          )CLEW_DYNLIB_IMPORT(module, "clEnqueueWriteBuffer");
    __clewEnqueueWriteBufferRect        = (PFNCLENQUEUEWRITEBUFFERRECT      )CLEW_DYNLIB_IMPORT(module, "clEnqueueWriteBufferRect");
    __clewEnqueueCopyBuffer             = (PFNCLENQUEUECOPYBUFFER           )CLEW_DYNLIB_IMPORT(module, "clEnqueueCopyBuffer");
    __clewEnqueueCopyBufferRect         = (PFNCLENQUEUECOPYBUFFERRECT       )CLEW_DYNLIB_IMPORT(module, "clEnqueueCopyBufferRect");
    __clewEnqueueReadImage              = (PFNCLENQUEUEREADIMAGE            )CLEW_DYNLIB_IMPORT(module, "clEnqueueReadImage");
    __clewEnqueueWriteImage             = (PFNCLENQUEUEWRITEIMAGE           )CLEW_DYNLIB_IMPORT(module, "clEnqueueWriteImage");
    __clewEnqueueCopyImage              = (PFNCLENQUEUECOPYIMAGE            )CLEW_DYNLIB_IMPORT(module, "clEnqueueCopyImage");
    __clewEnqueueCopyImageToBuffer      = (PFNCLENQUEUECOPYIMAGETOBUFFER    )CLEW_DYNLIB_IMPORT(module, "clEnqueueCopyImageToBuffer");
    __clewEnqueueCopyBufferToImage      = (PFNCLENQUEUECOPYBUFFERTOIMAGE    )CLEW_DYNLIB_IMPORT(module, "clEnqueueCopyBufferToImage");
    __clewEnqueueMapBuffer              = (PFNCLENQUEUEMAPBUFFER            )CLEW_DYNLIB_IMPORT(module, "clEnqueueMapBuffer");
    __clewEnqueueMapImage               = (PFNCLENQUEUEMAPIMAGE             )CLEW_DYNLIB_IMPORT(module, "clEnqueueMapImage");
    __clewEnqueueUnmapMemObject         = (PFNCLENQUEUEUNMAPMEMOBJECT       )CLEW_DYNLIB_IMPORT(module, "clEnqueueUnmapMemObject");
    __clewEnqueueNDRangeKernel          = (PFNCLENQUEUENDRANGEKERNEL        )CLEW_DYNLIB_IMPORT(module, "clEnqueueNDRangeKernel");
    __clewEnqueueTask                   = (PFNCLENQUEUETASK                 )CLEW_DYNLIB_IMPORT(module, "clEnqueueTask");
    __clewEnqueueNativeKernel           = (PFNCLENQUEUENATIVEKERNEL         )CLEW_DYNLIB_IMPORT(module, "clEnqueueNativeKernel");


    __clewGetExtensionFunctionAddressForPlatform = (PFNCLGETEXTENSIONFUNCTIONADDRESSFORPLATFORM)CLEW_DYNLIB_IMPORT(module, "clGetExtensionFunctionAddressForPlatform");
#ifdef CL_USE_DEPRECATED_OPENCL_1_1_APIS
    __clewCreateImage2D                 = (PFNCLCREATEIMAGE2D               )CLEW_DYNLIB_IMPORT(module, "clCreateImage2D");
    __clewCreateImage3D                 = (PFNCLCREATEIMAGE3D               )CLEW_DYNLIB_IMPORT(module, "clCreateImage3D");
    __clewEnqueueMarker                 = (PFNCLENQUEUEMARKER               )CLEW_DYNLIB_IMPORT(module, "clEnqueueMarker");
    __clewEnqueueWaitForEvents          = (PFNCLENQUEUEWAITFOREVENTS        )CLEW_DYNLIB_IMPORT(module, "clEnqueueWaitForEvents");
    __clewEnqueueBarrier                = (PFNCLENQUEUEBARRIER              )CLEW_DYNLIB_IMPORT(module, "clEnqueueBarrier");
    __clewUnloadCompiler                = (PFNCLUNLOADCOMPILER              )CLEW_DYNLIB_IMPORT(module, "clUnloadCompiler");
    __clewGetExtensionFunctionAddress   = (PFNCLGETEXTENSIONFUNCTIONADDRESS )CLEW_DYNLIB_IMPORT(module, "clGetExtensionFunctionAddress");
#endif


    /* cl_gl */
    __clewCreateFromGLBuffer            = (PFNCLCREATEFROMGLBUFFER          )CLEW_DYNLIB_IMPORT(module, "clCreateFromGLBuffer");
    __clewCreateFromGLTexture           = (PFNCLCREATEFROMGLTEXTURE         )CLEW_DYNLIB_IMPORT(module, "clCreateFromGLTexture");
    __clewCreateFromGLRenderbuffer      = (PFNCLCREATEFROMGLRENDERBUFFER    )CLEW_DYNLIB_IMPORT(module, "clCreateFromGLRenderbuffer");
    __clewGetGLObjectInfo               = (PFNCLGETGLOBJECTINFO             )CLEW_DYNLIB_IMPORT(module, "clGetGLObjectInfo");
    __clewGetGLTextureInfo              = (PFNCLGETGLTEXTUREINFO            )CLEW_DYNLIB_IMPORT(module, "clGetGLTextureInfo");
    __clewEnqueueAcquireGLObjects       = (PFNCLENQUEUEACQUIREGLOBJECTS     )CLEW_DYNLIB_IMPORT(module, "clEnqueueAcquireGLObjects");
    __clewEnqueueReleaseGLObjects       = (PFNCLENQUEUERELEASEGLOBJECTS     )CLEW_DYNLIB_IMPORT(module, "clEnqueueReleaseGLObjects");
    #ifdef CL_USE_DEPRECATED_OPENCL_1_1_APIS
    __clewCreateFromGLTexture2D         = (PFNCLCREATEFROMGLTEXTURE2D       )CLEW_DYNLIB_IMPORT(module, "clCreateFromGLTexture2D");
    __clewCreateFromGLTexture3D         = (PFNCLCREATEFROMGLTEXTURE3D       )CLEW_DYNLIB_IMPORT(module, "clCreateFromGLTexture3D");
    #endif
    __clewGetGLContextInfoKHR           = (PFNCLGETGLCONTEXTINFOKHR         )CLEW_DYNLIB_IMPORT(module, "clGetGLContextInfoKHR");


    if(__clewGetPlatformIDs == NULL) return 0;
    if(__clewGetPlatformInfo == NULL) return 0;
    if(__clewGetDeviceIDs == NULL) return 0;
    if(__clewGetDeviceInfo == NULL) return 0;

    return CLEW_SUCCESS;
}

const char* clewErrorString(cl_int error)
{
    static const char* strings[] =
    {
        // Error Codes
          "CL_SUCCESS"                                  //   0
        , "CL_DEVICE_NOT_FOUND"                         //  -1
        , "CL_DEVICE_NOT_AVAILABLE"                     //  -2
        , "CL_COMPILER_NOT_AVAILABLE"                   //  -3
        , "CL_MEM_OBJECT_ALLOCATION_FAILURE"            //  -4
        , "CL_OUT_OF_RESOURCES"                         //  -5
        , "CL_OUT_OF_HOST_MEMORY"                       //  -6
        , "CL_PROFILING_INFO_NOT_AVAILABLE"             //  -7
        , "CL_MEM_COPY_OVERLAP"                         //  -8
        , "CL_IMAGE_FORMAT_MISMATCH"                    //  -9
        , "CL_IMAGE_FORMAT_NOT_SUPPORTED"               //  -10
        , "CL_BUILD_PROGRAM_FAILURE"                    //  -11
        , "CL_MAP_FAILURE"                              //  -12
        , "CL_MISALIGNED_SUB_BUFFER_OFFSET"             //  -13
        , "CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST"//  -14
        , "CL_COMPILE_PROGRAM_FAILURE"                  //  -15
        , "CL_LINKER_NOT_AVAILABLE"                     //  -16
        , "CL_LINK_PROGRAM_FAILURE"                     //  -17
        , "CL_DEVICE_PARTITION_FAILED"                  //  -18
        , "CL_KERNEL_ARG_INFO_NOT_AVAILABLE"            //  -19

        , ""    //  -20
        , ""    //  -21
        , ""    //  -22
        , ""    //  -23
        , ""    //  -24
        , ""    //  -25
        , ""    //  -26
        , ""    //  -27
        , ""    //  -28
        , ""    //  -29

        , "CL_INVALID_VALUE"                            //  -30
        , "CL_INVALID_DEVICE_TYPE"                      //  -31
        , "CL_INVALID_PLATFORM"                         //  -32
        , "CL_INVALID_DEVICE"                           //  -33
        , "CL_INVALID_CONTEXT"                          //  -34
        , "CL_INVALID_QUEUE_PROPERTIES"                 //  -35
        , "CL_INVALID_COMMAND_QUEUE"                    //  -36
        , "CL_INVALID_HOST_PTR"                         //  -37
        , "CL_INVALID_MEM_OBJECT"                       //  -38
        , "CL_INVALID_IMAGE_FORMAT_DESCRIPTOR"          //  -39
        , "CL_INVALID_IMAGE_SIZE"                       //  -40
        , "CL_INVALID_SAMPLER"                          //  -41
        , "CL_INVALID_BINARY"                           //  -42
        , "CL_INVALID_BUILD_OPTIONS"                    //  -43
        , "CL_INVALID_PROGRAM"                          //  -44
        , "CL_INVALID_PROGRAM_EXECUTABLE"               //  -45
        , "CL_INVALID_KERNEL_NAME"                      //  -46
        , "CL_INVALID_KERNEL_DEFINITION"                //  -47
        , "CL_INVALID_KERNEL"                           //  -48
        , "CL_INVALID_ARG_INDEX"                        //  -49
        , "CL_INVALID_ARG_VALUE"                        //  -50
        , "CL_INVALID_ARG_SIZE"                         //  -51
        , "CL_INVALID_KERNEL_ARGS"                      //  -52
        , "CL_INVALID_WORK_DIMENSION"                   //  -53
        , "CL_INVALID_WORK_GROUP_SIZE"                  //  -54
        , "CL_INVALID_WORK_ITEM_SIZE"                   //  -55
        , "CL_INVALID_GLOBAL_OFFSET"                    //  -56
        , "CL_INVALID_EVENT_WAIT_LIST"                  //  -57
        , "CL_INVALID_EVENT"                            //  -58
        , "CL_INVALID_OPERATION"                        //  -59
        , "CL_INVALID_GL_OBJECT"                        //  -60
        , "CL_INVALID_BUFFER_SIZE"                      //  -61
        , "CL_INVALID_MIP_LEVEL"                        //  -62
        , "CL_INVALID_GLOBAL_WORK_SIZE"                 //  -63
        , "CL_INVALID_PROPERTY"                         //  -64
        , "CL_INVALID_IMAGE_DESCRIPTOR"                 //  -65
        , "CL_INVALID_COMPILER_OPTIONS"                 //  -66
        , "CL_INVALID_LINKER_OPTIONS"                   //  -67
        , "CL_INVALID_DEVICE_PARTITION_COUNT"           //  -68
    };

    static const int num_errors = sizeof(strings) / sizeof(strings[0]);

    if (error == -1001) {
        return "CL_PLATFORM_NOT_FOUND_KHR";
    }

    if (error > 0 || -error >= num_errors) {
        return "Unknown OpenCL error";
    }

    return strings[-error];
}