diff options
Diffstat (limited to 'intern/decklink/linux/DeckLinkAPIDispatch.cpp')
-rw-r--r-- | intern/decklink/linux/DeckLinkAPIDispatch.cpp | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/intern/decklink/linux/DeckLinkAPIDispatch.cpp b/intern/decklink/linux/DeckLinkAPIDispatch.cpp new file mode 100644 index 00000000000..3cf53f109ac --- /dev/null +++ b/intern/decklink/linux/DeckLinkAPIDispatch.cpp @@ -0,0 +1,148 @@ +/* -LICENSE-START- +** Copyright (c) 2009 Blackmagic Design +** +** Permission is hereby granted, free of charge, to any person or organization +** obtaining a copy of the software and accompanying documentation covered by +** this license (the "Software") to use, reproduce, display, distribute, +** execute, and transmit the Software, and to prepare derivative works of the +** Software, and to permit third-parties to whom the Software is furnished to +** do so, all subject to the following: +** +** The copyright notices in the Software and this entire statement, including +** the above license grant, this restriction and the following disclaimer, +** must be included in all copies of the Software, in whole or in part, and +** all derivative works of the Software, unless such copies or derivative +** works are solely in the form of machine-executable object code generated by +** a source language processor. +** +** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +** FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT +** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE +** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, +** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +** DEALINGS IN THE SOFTWARE. +** -LICENSE-END- +**/ + +#include <stdlib.h> +#include <stdio.h> +#include <pthread.h> +#include <dlfcn.h> +#include <ctype.h> + +#include "DeckLinkAPI.h" + +#define kDeckLinkAPI_Name "libDeckLinkAPI.so" +#define KDeckLinkPreviewAPI_Name "libDeckLinkPreviewAPI.so" + +typedef IDeckLinkIterator* (*CreateIteratorFunc)(void); +typedef IDeckLinkAPIInformation* (*CreateAPIInformationFunc)(void); +typedef IDeckLinkGLScreenPreviewHelper* (*CreateOpenGLScreenPreviewHelperFunc)(void); +typedef IDeckLinkVideoConversion* (*CreateVideoConversionInstanceFunc)(void); +typedef IDeckLinkDiscovery* (*CreateDeckLinkDiscoveryInstanceFunc)(void); + +static pthread_once_t gDeckLinkOnceControl = PTHREAD_ONCE_INIT; +static pthread_once_t gPreviewOnceControl = PTHREAD_ONCE_INIT; + +static bool gLoadedDeckLinkAPI = false; + +static CreateIteratorFunc gCreateIteratorFunc = NULL; +static CreateAPIInformationFunc gCreateAPIInformationFunc = NULL; +static CreateOpenGLScreenPreviewHelperFunc gCreateOpenGLPreviewFunc = NULL; +static CreateVideoConversionInstanceFunc gCreateVideoConversionFunc = NULL; +static CreateDeckLinkDiscoveryInstanceFunc gCreateDeckLinkDiscoveryFunc = NULL; + +static void InitDeckLinkAPI (void) +{ + void *libraryHandle; + + libraryHandle = dlopen(kDeckLinkAPI_Name, RTLD_NOW|RTLD_GLOBAL); + if (!libraryHandle) + { + fprintf(stderr, "%s\n", dlerror()); + return; + } + + gLoadedDeckLinkAPI = true; + + gCreateIteratorFunc = (CreateIteratorFunc)dlsym(libraryHandle, "CreateDeckLinkIteratorInstance_0002"); + if (!gCreateIteratorFunc) + fprintf(stderr, "%s\n", dlerror()); + gCreateAPIInformationFunc = (CreateAPIInformationFunc)dlsym(libraryHandle, "CreateDeckLinkAPIInformationInstance_0001"); + if (!gCreateAPIInformationFunc) + fprintf(stderr, "%s\n", dlerror()); + gCreateVideoConversionFunc = (CreateVideoConversionInstanceFunc)dlsym(libraryHandle, "CreateVideoConversionInstance_0001"); + if (!gCreateVideoConversionFunc) + fprintf(stderr, "%s\n", dlerror()); + gCreateDeckLinkDiscoveryFunc = (CreateDeckLinkDiscoveryInstanceFunc)dlsym(libraryHandle, "CreateDeckLinkDiscoveryInstance_0001"); + if (!gCreateDeckLinkDiscoveryFunc) + fprintf(stderr, "%s\n", dlerror()); +} + +static void InitDeckLinkPreviewAPI (void) +{ + void *libraryHandle; + + libraryHandle = dlopen(KDeckLinkPreviewAPI_Name, RTLD_NOW|RTLD_GLOBAL); + if (!libraryHandle) + { + fprintf(stderr, "%s\n", dlerror()); + return; + } + gCreateOpenGLPreviewFunc = (CreateOpenGLScreenPreviewHelperFunc)dlsym(libraryHandle, "CreateOpenGLScreenPreviewHelper_0001"); + if (!gCreateOpenGLPreviewFunc) + fprintf(stderr, "%s\n", dlerror()); +} + +bool IsDeckLinkAPIPresent (void) +{ + // If the DeckLink API dynamic library was successfully loaded, return this knowledge to the caller + return gLoadedDeckLinkAPI; +} + +IDeckLinkIterator* CreateDeckLinkIteratorInstance (void) +{ + pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI); + + if (gCreateIteratorFunc == NULL) + return NULL; + return gCreateIteratorFunc(); +} + +IDeckLinkAPIInformation* CreateDeckLinkAPIInformationInstance (void) +{ + pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI); + + if (gCreateAPIInformationFunc == NULL) + return NULL; + return gCreateAPIInformationFunc(); +} + +IDeckLinkGLScreenPreviewHelper* CreateOpenGLScreenPreviewHelper (void) +{ + pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI); + pthread_once(&gPreviewOnceControl, InitDeckLinkPreviewAPI); + + if (gCreateOpenGLPreviewFunc == NULL) + return NULL; + return gCreateOpenGLPreviewFunc(); +} + +IDeckLinkVideoConversion* CreateVideoConversionInstance (void) +{ + pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI); + + if (gCreateVideoConversionFunc == NULL) + return NULL; + return gCreateVideoConversionFunc(); +} + +IDeckLinkDiscovery* CreateDeckLinkDiscoveryInstance (void) +{ + pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI); + + if (gCreateDeckLinkDiscoveryFunc == NULL) + return NULL; + return gCreateDeckLinkDiscoveryFunc(); +} |