fix decklink build for OS X

[mlt] / src / modules / decklink / darwin / DeckLinkAPIDispatch.cpp

diff --git a/src/modules/decklink/darwin/DeckLinkAPIDispatch.cpp b/src/modules/decklink/darwin/DeckLinkAPIDispatch.cpp
new file mode 100755 (executable)
index 0000000..368351a
--- /dev/null
+++ b/src/modules/decklink/darwin/DeckLinkAPIDispatch.cpp
@@ -0,0 +1,131 @@
+/* -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-
+*/
+/* DeckLinkAPIDispatch.cpp */
+
+#include "DeckLinkAPI.h"
+#include <pthread.h>
+
+#if BLACKMAGIC_DECKLINK_API_MAGIC != 1
+       #error The DeckLink API version of DeckLinkAPIDispatch.cpp is not the same version as DeckLinkAPI.h
+#endif
+
+#define kDeckLinkAPI_BundlePath "/Library/Application Support/Blackmagic Design/Blackmagic DeckLink/DeckLinkAPI.bundle"
+
+typedef IDeckLinkIterator* (*CreateIteratorFunc)(void);
+typedef IDeckLinkAPIInformation* (*CreateAPIInformationFunc)(void);
+typedef IDeckLinkGLScreenPreviewHelper* (*CreateOpenGLScreenPreviewHelperFunc)(void);
+typedef IDeckLinkCocoaScreenPreviewCallback* (*CreateCocoaScreenPreviewFunc)(void*);
+typedef IDeckLinkVideoConversion* (*CreateVideoConversionInstanceFunc)(void);
+
+static pthread_once_t                                          gDeckLinkOnceControl            = PTHREAD_ONCE_INIT;
+static CFBundleRef                                                     gBundleRef                                      = NULL;
+static CreateIteratorFunc                                      gCreateIteratorFunc                     = NULL;
+static CreateAPIInformationFunc                                gCreateAPIInformationFunc       = NULL;
+static CreateOpenGLScreenPreviewHelperFunc     gCreateOpenGLPreviewFunc        = NULL;
+static CreateCocoaScreenPreviewFunc                    gCreateCocoaPreviewFunc         = NULL;
+static CreateVideoConversionInstanceFunc       gCreateVideoConversionFunc      = NULL;
+
+
+void   InitDeckLinkAPI (void)
+{
+       CFURLRef                bundleURL;
+
+       bundleURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, CFSTR(kDeckLinkAPI_BundlePath), kCFURLPOSIXPathStyle, true);
+       if (bundleURL != NULL)
+       {
+               gBundleRef = CFBundleCreate(kCFAllocatorDefault, bundleURL);
+               if (gBundleRef != NULL)
+               {
+                       gCreateIteratorFunc = (CreateIteratorFunc)CFBundleGetFunctionPointerForName(gBundleRef, CFSTR("CreateDeckLinkIteratorInstance_0001"));
+                       gCreateAPIInformationFunc = (CreateAPIInformationFunc)CFBundleGetFunctionPointerForName(gBundleRef, CFSTR("CreateDeckLinkAPIInformationInstance_0001"));
+                       gCreateOpenGLPreviewFunc = (CreateOpenGLScreenPreviewHelperFunc)CFBundleGetFunctionPointerForName(gBundleRef, CFSTR("CreateOpenGLScreenPreviewHelper_0001"));
+                       gCreateCocoaPreviewFunc = (CreateCocoaScreenPreviewFunc)CFBundleGetFunctionPointerForName(gBundleRef, CFSTR("CreateCocoaScreenPreview_0001"));
+                       gCreateVideoConversionFunc = (CreateVideoConversionInstanceFunc)CFBundleGetFunctionPointerForName(gBundleRef, CFSTR("CreateVideoConversionInstance_0001"));
+               }
+               CFRelease(bundleURL);
+       }
+}
+
+bool           IsDeckLinkAPIPresent (void)
+{
+       // If the DeckLink API bundle was successfully loaded, return this knowledge to the caller
+       if (gBundleRef != NULL)
+               return true;
+       
+       return false;
+}
+
+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);
+       
+       if (gCreateOpenGLPreviewFunc == NULL)
+               return NULL;
+       
+       return gCreateOpenGLPreviewFunc();
+}
+
+IDeckLinkCocoaScreenPreviewCallback*   CreateCocoaScreenPreview (void* parentView)
+{
+       pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
+       
+       if (gCreateCocoaPreviewFunc == NULL)
+               return NULL;
+       
+       return gCreateCocoaPreviewFunc(parentView);
+}
+
+IDeckLinkVideoConversion* CreateVideoConversionInstance (void)
+{
+       pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
+       
+       if (gCreateVideoConversionFunc == NULL)
+               return NULL;
+       
+       return gCreateVideoConversionFunc();
+}
+