git.sesse.net Git - ffmpeg/blob - 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