GstD3DContextBridgeCommon.h

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#pragma once
 
#include <QtCore/qglobal.h>
 
#if defined(Q_OS_WIN) && (defined(QGC_HAS_GST_D3D11_GPU_PATH) || defined(QGC_HAS_GST_D3D12_GPU_PATH))
 
#include <QtCore/QLoggingCategory>
#include <QtCore/QMutex>
#include <atomic>
#include <gst/gst.h>
 
namespace GstD3DContextBridgeCommon {
 
struct BridgeState
{
    QMutex mutex;
    bool primed = false;
    bool warnedWrongBackend = false;
    std::atomic<bool> loggedFirstHandoff{false};
    GstObject* device = nullptr;  
};
 
struct BridgeOps
{
    const char* apiName;                                  
    const char* contextType;                              
    const QLoggingCategory& (*cat)();                     
    int qrhiBackend;                                      
    GstObject* (*createDevice)(const QLoggingCategory&);  
    GstContext* (*makeContext)(GstObject* device);        
};
 
bool checkSnapshotBackend(BridgeState& state, const QLoggingCategory& cat, int expectedBackend,
                          const char* backendName);
 
void logHandoff(BridgeState& state, const QLoggingCategory& cat, GstElement* element, const char* apiName);
 
gint64 readAdapterLuid(gpointer device);
 
void logAdapterMatch(gint64 expectedLuid, gpointer gstDevice, const QLoggingCategory& cat, const char* apiName);
 
void registerBridge(const QLoggingCategory& cat, GstBusSyncReply (*handler)(GstMessage*), void (*reset)());
 
bool prime(BridgeState& state, const BridgeOps& ops);
 
GstObject* currentDevice(BridgeState& state);
 
GstBusSyncReply handleSyncMessage(BridgeState& state, const BridgeOps& ops, GstMessage* message);
 
bool answerContextQuery(BridgeState& state, const BridgeOps& ops, GstQuery* query);
 
void reset(BridgeState& state, const BridgeOps& ops);
 
}  // namespace GstD3DContextBridgeCommon
 
#endif  // Q_OS_WIN && (QGC_HAS_GST_D3D11_GPU_PATH || QGC_HAS_GST_D3D12_GPU_PATH)