33f23af1e2069628a357e38316b316ba197ccb94
[ffmpeg.git] / compat / cuda / dynlink_loader.h
1 /*
2  * This copyright notice applies to this header file only:
3  *
4  * Copyright (c) 2016
5  *
6  * Permission is hereby granted, free of charge, to any person
7  * obtaining a copy of this software and associated documentation
8  * files (the "Software"), to deal in the Software without
9  * restriction, including without limitation the rights to use,
10  * copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the software, and to permit persons to whom the
12  * software is furnished to do so, subject to the following
13  * conditions:
14  *
15  * The above copyright notice and this permission notice shall be
16  * included in all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
20  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
22  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
23  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25  * OTHER DEALINGS IN THE SOFTWARE.
26  */
27
28 #ifndef AV_COMPAT_CUDA_DYNLINK_LOADER_H
29 #define AV_COMPAT_CUDA_DYNLINK_LOADER_H
30
31 #include "compat/cuda/dynlink_cuda.h"
32 #include "compat/cuda/dynlink_nvcuvid.h"
33 #include "compat/nvenc/nvEncodeAPI.h"
34 #include "compat/w32dlfcn.h"
35
36 #include "libavutil/log.h"
37 #include "libavutil/error.h"
38
39 #if defined(_WIN32)
40 # define LIB_HANDLE HMODULE
41 #else
42 # define LIB_HANDLE void*
43 #endif
44
45 #if defined(_WIN32) || defined(__CYGWIN__)
46 # define CUDA_LIBNAME "nvcuda.dll"
47 # define NVCUVID_LIBNAME "nvcuvid.dll"
48 # if ARCH_X86_64
49 #  define NVENC_LIBNAME "nvEncodeAPI64.dll"
50 # else
51 #  define NVENC_LIBNAME "nvEncodeAPI.dll"
52 # endif
53 #else
54 # define CUDA_LIBNAME "libcuda.so.1"
55 # define NVCUVID_LIBNAME "libnvcuvid.so.1"
56 # define NVENC_LIBNAME "libnvidia-encode.so.1"
57 #endif
58
59 #define LOAD_LIBRARY(l, path)                                     \
60     do {                                                          \
61         if (!((l) = dlopen(path, RTLD_LAZY))) {                   \
62             av_log(NULL, AV_LOG_ERROR, "Cannot load %s\n", path); \
63             ret = AVERROR_UNKNOWN;                                \
64             goto error;                                           \
65         }                                                         \
66         av_log(NULL, AV_LOG_TRACE, "Loaded lib: %s\n", path);     \
67     } while (0)
68
69 #define LOAD_SYMBOL(fun, symbol)                                    \
70     do {                                                            \
71         if (!((f->fun) = dlsym(f->lib, symbol))) {                  \
72             av_log(NULL, AV_LOG_ERROR, "Cannot load %s\n", symbol); \
73             ret = AVERROR_UNKNOWN;                                  \
74             goto error;                                             \
75         }                                                           \
76         av_log(NULL, AV_LOG_TRACE, "Loaded sym: %s\n", symbol);     \
77     } while (0)
78
79 #define GENERIC_LOAD_FUNC_PREAMBLE(T, n, N)  \
80     T *f;                                    \
81     int ret;                                 \
82                                              \
83     n##_free_functions(functions);           \
84                                              \
85     f = *functions = av_mallocz(sizeof(*f)); \
86     if (!f)                                  \
87         return AVERROR(ENOMEM);              \
88                                              \
89     LOAD_LIBRARY(f->lib, N);
90
91 #define GENERIC_LOAD_FUNC_FINALE(n) \
92     return 0;                       \
93 error:                              \
94     n##_free_functions(functions);  \
95     return ret;
96
97 #define GENERIC_FREE_FUNC()              \
98     if (!functions)                      \
99         return;                          \
100     if (*functions && (*functions)->lib) \
101         dlclose((*functions)->lib);      \
102     av_freep(functions);
103
104 #ifdef AV_COMPAT_DYNLINK_CUDA_H
105 typedef struct CudaFunctions {
106     tcuInit *cuInit;
107     tcuDeviceGetCount *cuDeviceGetCount;
108     tcuDeviceGet *cuDeviceGet;
109     tcuDeviceGetName *cuDeviceGetName;
110     tcuDeviceComputeCapability *cuDeviceComputeCapability;
111     tcuCtxCreate_v2 *cuCtxCreate;
112     tcuCtxPushCurrent_v2 *cuCtxPushCurrent;
113     tcuCtxPopCurrent_v2 *cuCtxPopCurrent;
114     tcuCtxDestroy_v2 *cuCtxDestroy;
115     tcuMemAlloc_v2 *cuMemAlloc;
116     tcuMemFree_v2 *cuMemFree;
117     tcuMemcpy2D_v2 *cuMemcpy2D;
118     tcuGetErrorName *cuGetErrorName;
119     tcuGetErrorString *cuGetErrorString;
120
121     LIB_HANDLE lib;
122 } CudaFunctions;
123 #else
124 typedef struct CudaFunctions CudaFunctions;
125 #endif
126
127 typedef struct CuvidFunctions {
128     tcuvidCreateDecoder *cuvidCreateDecoder;
129     tcuvidDestroyDecoder *cuvidDestroyDecoder;
130     tcuvidDecodePicture *cuvidDecodePicture;
131     tcuvidMapVideoFrame *cuvidMapVideoFrame;
132     tcuvidUnmapVideoFrame *cuvidUnmapVideoFrame;
133     tcuvidCtxLockCreate *cuvidCtxLockCreate;
134     tcuvidCtxLockDestroy *cuvidCtxLockDestroy;
135     tcuvidCtxLock *cuvidCtxLock;
136     tcuvidCtxUnlock *cuvidCtxUnlock;
137
138     tcuvidCreateVideoSource *cuvidCreateVideoSource;
139     tcuvidCreateVideoSourceW *cuvidCreateVideoSourceW;
140     tcuvidDestroyVideoSource *cuvidDestroyVideoSource;
141     tcuvidSetVideoSourceState *cuvidSetVideoSourceState;
142     tcuvidGetVideoSourceState *cuvidGetVideoSourceState;
143     tcuvidGetSourceVideoFormat *cuvidGetSourceVideoFormat;
144     tcuvidGetSourceAudioFormat *cuvidGetSourceAudioFormat;
145     tcuvidCreateVideoParser *cuvidCreateVideoParser;
146     tcuvidParseVideoData *cuvidParseVideoData;
147     tcuvidDestroyVideoParser *cuvidDestroyVideoParser;
148
149     LIB_HANDLE lib;
150 } CuvidFunctions;
151
152 typedef struct NvencFunctions {
153     NVENCSTATUS (NVENCAPI *NvEncodeAPICreateInstance)(NV_ENCODE_API_FUNCTION_LIST *functionList);
154     NVENCSTATUS (NVENCAPI *NvEncodeAPIGetMaxSupportedVersion)(uint32_t* version);
155
156     LIB_HANDLE lib;
157 } NvencFunctions;
158
159 #ifdef AV_COMPAT_DYNLINK_CUDA_H
160 static inline void cuda_free_functions(CudaFunctions **functions)
161 {
162     GENERIC_FREE_FUNC();
163 }
164 #endif
165
166 static inline void cuvid_free_functions(CuvidFunctions **functions)
167 {
168     GENERIC_FREE_FUNC();
169 }
170
171 static inline void nvenc_free_functions(NvencFunctions **functions)
172 {
173     GENERIC_FREE_FUNC();
174 }
175
176 #ifdef AV_COMPAT_DYNLINK_CUDA_H
177 static inline int cuda_load_functions(CudaFunctions **functions)
178 {
179     GENERIC_LOAD_FUNC_PREAMBLE(CudaFunctions, cuda, CUDA_LIBNAME);
180
181     LOAD_SYMBOL(cuInit, "cuInit");
182     LOAD_SYMBOL(cuDeviceGetCount, "cuDeviceGetCount");
183     LOAD_SYMBOL(cuDeviceGet, "cuDeviceGet");
184     LOAD_SYMBOL(cuDeviceGetName, "cuDeviceGetName");
185     LOAD_SYMBOL(cuDeviceComputeCapability, "cuDeviceComputeCapability");
186     LOAD_SYMBOL(cuCtxCreate, "cuCtxCreate_v2");
187     LOAD_SYMBOL(cuCtxPushCurrent, "cuCtxPushCurrent_v2");
188     LOAD_SYMBOL(cuCtxPopCurrent, "cuCtxPopCurrent_v2");
189     LOAD_SYMBOL(cuCtxDestroy, "cuCtxDestroy_v2");
190     LOAD_SYMBOL(cuMemAlloc, "cuMemAlloc_v2");
191     LOAD_SYMBOL(cuMemFree, "cuMemFree_v2");
192     LOAD_SYMBOL(cuMemcpy2D, "cuMemcpy2D_v2");
193     LOAD_SYMBOL(cuGetErrorName, "cuGetErrorName");
194     LOAD_SYMBOL(cuGetErrorString, "cuGetErrorString");
195
196     GENERIC_LOAD_FUNC_FINALE(cuda);
197 }
198 #endif
199
200 static inline int cuvid_load_functions(CuvidFunctions **functions)
201 {
202     GENERIC_LOAD_FUNC_PREAMBLE(CuvidFunctions, cuvid, NVCUVID_LIBNAME);
203
204     LOAD_SYMBOL(cuvidCreateDecoder, "cuvidCreateDecoder");
205     LOAD_SYMBOL(cuvidDestroyDecoder, "cuvidDestroyDecoder");
206     LOAD_SYMBOL(cuvidDecodePicture, "cuvidDecodePicture");
207 #ifdef __CUVID_DEVPTR64
208     LOAD_SYMBOL(cuvidMapVideoFrame, "cuvidMapVideoFrame64");
209     LOAD_SYMBOL(cuvidUnmapVideoFrame, "cuvidUnmapVideoFrame64");
210 #else
211     LOAD_SYMBOL(cuvidMapVideoFrame, "cuvidMapVideoFrame");
212     LOAD_SYMBOL(cuvidUnmapVideoFrame, "cuvidUnmapVideoFrame");
213 #endif
214     LOAD_SYMBOL(cuvidCtxLockCreate, "cuvidCtxLockCreate");
215     LOAD_SYMBOL(cuvidCtxLockDestroy, "cuvidCtxLockDestroy");
216     LOAD_SYMBOL(cuvidCtxLock, "cuvidCtxLock");
217     LOAD_SYMBOL(cuvidCtxUnlock, "cuvidCtxUnlock");
218
219     LOAD_SYMBOL(cuvidCreateVideoSource, "cuvidCreateVideoSource");
220     LOAD_SYMBOL(cuvidCreateVideoSourceW, "cuvidCreateVideoSourceW");
221     LOAD_SYMBOL(cuvidDestroyVideoSource, "cuvidDestroyVideoSource");
222     LOAD_SYMBOL(cuvidSetVideoSourceState, "cuvidSetVideoSourceState");
223     LOAD_SYMBOL(cuvidGetVideoSourceState, "cuvidGetVideoSourceState");
224     LOAD_SYMBOL(cuvidGetSourceVideoFormat, "cuvidGetSourceVideoFormat");
225     LOAD_SYMBOL(cuvidGetSourceAudioFormat, "cuvidGetSourceAudioFormat");
226     LOAD_SYMBOL(cuvidCreateVideoParser, "cuvidCreateVideoParser");
227     LOAD_SYMBOL(cuvidParseVideoData, "cuvidParseVideoData");
228     LOAD_SYMBOL(cuvidDestroyVideoParser, "cuvidDestroyVideoParser");
229
230     GENERIC_LOAD_FUNC_FINALE(cuvid);
231 }
232
233 static inline int nvenc_load_functions(NvencFunctions **functions)
234 {
235     GENERIC_LOAD_FUNC_PREAMBLE(NvencFunctions, nvenc, NVENC_LIBNAME);
236
237     LOAD_SYMBOL(NvEncodeAPICreateInstance, "NvEncodeAPICreateInstance");
238     LOAD_SYMBOL(NvEncodeAPIGetMaxSupportedVersion, "NvEncodeAPIGetMaxSupportedVersion");
239
240     GENERIC_LOAD_FUNC_FINALE(nvenc);
241 }
242
243 #undef GENERIC_LOAD_FUNC_PREAMBLE
244 #undef LOAD_LIBRARY
245 #undef LOAD_SYMBOL
246 #undef GENERIC_LOAD_FUNC_FINALE
247 #undef GENERIC_FREE_FUNC
248 #undef CUDA_LIBNAME
249 #undef NVCUVID_LIBNAME
250 #undef NVENC_LIBNAME
251 #undef LIB_HANDLE
252
253 #endif
254