132 lines
5.0 KiB
C++
132 lines
5.0 KiB
C++
/* -LICENSE-START-
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** Copyright (c) 2011 Blackmagic Design
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**
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** Permission is hereby granted, free of charge, to any person or organization
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** obtaining a copy of the software and accompanying documentation covered by
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** this license (the "Software") to use, reproduce, display, distribute,
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** execute, and transmit the Software, and to prepare derivative works of the
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** Software, and to permit third-parties to whom the Software is furnished to
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** do so, all subject to the following:
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**
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** The copyright notices in the Software and this entire statement, including
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** the above license grant, this restriction and the following disclaimer,
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** must be included in all copies of the Software, in whole or in part, and
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** all derivative works of the Software, unless such copies or derivative
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** works are solely in the form of machine-executable object code generated by
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** a source language processor.
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**
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** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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** FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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** DEALINGS IN THE SOFTWARE.
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** -LICENSE-END-
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*/
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/* DeckLinkAPIDispatch.cpp */
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#include "DeckLinkAPI_v8_0.h"
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#include <pthread.h>
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#if BLACKMAGIC_DECKLINK_API_MAGIC != 1
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#error The DeckLink API version of DeckLinkAPIDispatch.cpp is not the same version as DeckLinkAPI.h
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#endif
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#define kDeckLinkAPI_BundlePath "/Library/Frameworks/DeckLinkAPI.framework"
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typedef IDeckLinkIterator_v8_0* (*CreateIteratorFunc)(void);
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typedef IDeckLinkAPIInformation* (*CreateAPIInformationFunc)(void);
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typedef IDeckLinkGLScreenPreviewHelper* (*CreateOpenGLScreenPreviewHelperFunc)(void);
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typedef IDeckLinkCocoaScreenPreviewCallback* (*CreateCocoaScreenPreviewFunc)(void*);
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typedef IDeckLinkVideoConversion* (*CreateVideoConversionInstanceFunc)(void);
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static pthread_once_t gDeckLinkOnceControl = PTHREAD_ONCE_INIT;
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static CFBundleRef gDeckLinkAPIBundleRef = NULL;
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static CreateIteratorFunc gCreateIteratorFunc = NULL;
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static CreateAPIInformationFunc gCreateAPIInformationFunc = NULL;
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static CreateOpenGLScreenPreviewHelperFunc gCreateOpenGLPreviewFunc = NULL;
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static CreateCocoaScreenPreviewFunc gCreateCocoaPreviewFunc = NULL;
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static CreateVideoConversionInstanceFunc gCreateVideoConversionFunc = NULL;
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static void InitDeckLinkAPI (void)
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{
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CFURLRef bundleURL;
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bundleURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, CFSTR(kDeckLinkAPI_BundlePath), kCFURLPOSIXPathStyle, true);
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if (bundleURL != NULL)
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{
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gDeckLinkAPIBundleRef = CFBundleCreate(kCFAllocatorDefault, bundleURL);
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if (gDeckLinkAPIBundleRef != NULL)
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{
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gCreateIteratorFunc = (CreateIteratorFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateDeckLinkIteratorInstance_0001"));
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gCreateAPIInformationFunc = (CreateAPIInformationFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateDeckLinkAPIInformationInstance_0001"));
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gCreateOpenGLPreviewFunc = (CreateOpenGLScreenPreviewHelperFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateOpenGLScreenPreviewHelper_0001"));
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gCreateCocoaPreviewFunc = (CreateCocoaScreenPreviewFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateCocoaScreenPreview_0001"));
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gCreateVideoConversionFunc = (CreateVideoConversionInstanceFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateVideoConversionInstance_0001"));
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}
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CFRelease(bundleURL);
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}
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}
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bool IsDeckLinkAPIPresent (void)
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{
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// If the DeckLink API bundle was successfully loaded, return this knowledge to the caller
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if (gDeckLinkAPIBundleRef != NULL)
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return true;
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return false;
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}
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IDeckLinkIterator_v8_0* CreateDeckLinkIteratorInstance (void)
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{
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pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
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if (gCreateIteratorFunc == NULL)
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return NULL;
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return gCreateIteratorFunc();
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}
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IDeckLinkAPIInformation* CreateDeckLinkAPIInformationInstance (void)
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{
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pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
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if (gCreateAPIInformationFunc == NULL)
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return NULL;
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return gCreateAPIInformationFunc();
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}
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IDeckLinkGLScreenPreviewHelper* CreateOpenGLScreenPreviewHelper (void)
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{
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pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
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if (gCreateOpenGLPreviewFunc == NULL)
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return NULL;
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return gCreateOpenGLPreviewFunc();
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}
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IDeckLinkCocoaScreenPreviewCallback* CreateCocoaScreenPreview (void* parentView)
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{
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pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
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if (gCreateCocoaPreviewFunc == NULL)
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return NULL;
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return gCreateCocoaPreviewFunc(parentView);
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}
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IDeckLinkVideoConversion* CreateVideoConversionInstance (void)
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{
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pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
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if (gCreateVideoConversionFunc == NULL)
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return NULL;
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return gCreateVideoConversionFunc();
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}
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