IEngineFactory: Added CreateDataBlob method (close #391)

Author: MikhailGorobets

Graphics/GraphicsEngine/include/EngineFactoryBase.hpp

@@ -32,6 +32,7 @@
 
 #include "Object.h"
 #include "EngineFactory.h"
+#include "DataBlobImpl.hpp"
 #include "DefaultShaderSourceStreamFactory.h"
 #include "Dearchiver.h"
 #include "DummyReferenceCounters.hpp"
@@ -98,6 +99,12 @@ class EngineFactoryBase : public BaseInterface
         return Diligent::GetAPIInfo();
     }
 
+    virtual void DILIGENT_CALL_TYPE CreateDataBlob(size_t InitialSize, const void* pData, IDataBlob** ppDataBlob) const override final
+    {
+        if (auto pDataBlob = DataBlobImpl::Create(InitialSize, pData))
+            pDataBlob->QueryInterface(IID_DataBlob, reinterpret_cast<IObject**>(ppDataBlob));
+    }
+
     virtual void DILIGENT_CALL_TYPE CreateDefaultShaderSourceStreamFactory(const Char*                       SearchDirectories,
                                                                            IShaderSourceInputStreamFactory** ppShaderSourceFactory) const override final
     {

Graphics/GraphicsEngine/interface/EngineFactory.h

@@ -32,6 +32,7 @@
 
 #include "../../../Primitives/interface/Object.h"
 #include "../../../Primitives/interface/DebugOutput.h"
+#include "../../../Primitives/interface/DataBlob.h"
 #include "GraphicsTypes.h"
 
 
@@ -82,6 +83,17 @@ DILIGENT_BEGIN_INTERFACE(IEngineFactory, IObject)
                         const Char*                              SearchDirectories,
                         struct IShaderSourceInputStreamFactory** ppShaderSourceFactory) CONST PURE;
 
+    /// Creates a data blob.
+
+    /// \param [in]  InitialSize - The size of the internal data buffer.
+    /// \param [in]  pData       - Pointer to the data to write to the internal buffer.
+    ///                            If null, no data will be written.
+    /// \param [out] ppDataBlob  - Memory address where the pointer to the data blob will be written.
+    VIRTUAL void METHOD(CreateDataBlob)(THIS_
+                                        size_t      InitialSize,
+                                        const void* pData,
+                                        IDataBlob** ppDataBlob) CONST PURE;
+
     /// Enumerates adapters available on this machine.
 
     /// \param [in]     MinVersion  - Minimum required API version (feature level for Direct3D).
@@ -147,6 +159,7 @@ DILIGENT_END_INTERFACE
 
 #    define IEngineFactory_GetAPIInfo(This)                                  CALL_IFACE_METHOD(EngineFactory, GetAPIInfo,                             This)
 #    define IEngineFactory_CreateDefaultShaderSourceStreamFactory(This, ...) CALL_IFACE_METHOD(EngineFactory, CreateDefaultShaderSourceStreamFactory, This, __VA_ARGS__)
+#    define IEngineFactory_CreateDataBlob(This, ...)                         CALL_IFACE_METHOD(EngineFactory, CreateDataBlob,                         This, __VA_ARGS__)
 #    define IEngineFactory_EnumerateAdapters(This, ...)                      CALL_IFACE_METHOD(EngineFactory, EnumerateAdapters,                      This, __VA_ARGS__)
 #    define IEngineFactory_InitAndroidFileSystem(This, ...)                  CALL_IFACE_METHOD(EngineFactory, InitAndroidFileSystem,                  This, __VA_ARGS__)
 #    define IEngineFactory_CreateDearchiver(This, ...)                       CALL_IFACE_METHOD(EngineFactory, CreateDearchiver,                       This, __VA_ARGS__)

Tests/IncludeTest/GraphicsEngine/EngineFactoryH_test.c

@@ -35,6 +35,9 @@ void TestEngineFactortCInterface(struct IEngineFactory* pFactory)
     struct IShaderSourceInputStreamFactory* pShaderFactory = NULL;
     IEngineFactory_CreateDefaultShaderSourceStreamFactory(pFactory, "directories", &pShaderFactory);
 
+    struct IDataBlob* pDataBlob = NULL;
+    IEngineFactory_CreateDataBlob(pFactory, 1024, NULL, &pDataBlob);
+
     struct Version MinVersion = {0, 0};
     IEngineFactory_EnumerateAdapters(pFactory, MinVersion, (Uint32*)NULL, (struct GraphicsAdapterInfo*)NULL);