diff -r 08233365fef6 -r 243bbc1d70db vghwinterface/vghwapiwrapper/src/simulator_graphicswrapper.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vghwinterface/vghwapiwrapper/src/simulator_graphicswrapper.cpp	Tue Nov 02 09:40:31 2010 +0000
@@ -0,0 +1,150 @@
+// This is the main DLL file.
+
+#include "platformtypes.h"
+#include <KhronosAPIWrapper.h>
+#include <guestvideodriverinterfaceconstants.h>  //Registers and enums 
+#include <platformthreading.h>  //mutex
+#include <graphicsvhwcallback.h>
+#include "simulator_graphicswrapper.h"
+
+SimulatorGraphicsWrapper::SimulatorGraphicsWrapper()
+    {															
+    }
+
+SimulatorGraphicsWrapper::~SimulatorGraphicsWrapper()
+    {
+    delete m_wrapper;
+    m_wrapper = 0;
+
+    Psu::platform_release_semaphore(m_outputBufferSemaphore);
+    }
+
+int SimulatorGraphicsWrapper::Reset( uint32_t *aGraphicsMemBase,  uint32_t *aCommandMemBase )
+    {
+    int ret = -1;
+    if ( m_wrapper )
+        {
+        delete m_wrapper;
+	    }
+    m_wrapper = NULL;
+
+    uint8_t *cmd_buffer = (uint8_t *)aCommandMemBase;
+    uint8_t *frame_buffer = (uint8_t *)aGraphicsMemBase;
+    if( (cmd_buffer != NULL) && (frame_buffer != NULL) )
+        {
+        m_wrapper = new KhronosAPIWrapper( (MGraphicsVHWCallback*)this,
+            frame_buffer, &cmd_buffer[VVHW_INPUT_BASE], &cmd_buffer[VVHW_OUTPUT_BASE] );
+        //Reset synchronisation mechanisms
+        Psu::platform_release_semaphore(m_outputBufferSemaphore);
+        Psu::platform_create_semaphore(m_outputBufferSemaphore, 1, 1);
+        ret = 0;
+        }
+    else
+        {
+        ret = -1;
+        }
+    return ret;
+    }
+
+void SimulatorGraphicsWrapper::LockOutputBuffer()
+    {
+    #ifdef KHRONOS_API_W_MULTITHREAD
+    Psu::platform_wait_for_signal(m_outputBufferSemaphore);
+    #endif
+    }
+
+void SimulatorGraphicsWrapper::ReleaseOutputBuffer(){}
+
+void SimulatorGraphicsWrapper::ProcessingDone(int i)
+    {
+    m_pythonCallBack( i );
+    }
+
+extern "C"
+    {
+    SIMULATOR_GRAPHICSWRAPPER_API SimulatorGraphicsWrapper* create_SimulatorGraphicsWrapper()
+        {
+        return new SimulatorGraphicsWrapper();
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API int initialize_SimulatorGraphicsWrapper( SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper )
+        {
+        Psu::platform_create_semaphore(m_outputBufferSemaphore, 1, 1);
+        // Change to proper error handling
+        return 0;
+        }
+
+    SIMULATOR_GRAPHICSWRAPPER_API int set_GraphicsCallBack( SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper, int (*aGraphicsCallBack) (int) )
+        {
+        m_pythonCallBack = aGraphicsCallBack;
+        // Change to proper error handling
+        return 0;
+        }
+
+    SIMULATOR_GRAPHICSWRAPPER_API int reset_SimulatorGraphicsWrapper(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper, uint32_t *aGraphicsMemBase,  uint32_t *aCommandMemBase )
+        {
+        return aSimulatorGraphicsWrapper->Reset( aGraphicsMemBase, aCommandMemBase );
+        }
+
+    SIMULATOR_GRAPHICSWRAPPER_API uint32_t get_InputBufferTail(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper )
+        {
+        return m_wrapper->InputBufferTail();
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API uint32_t get_InputBufferHead(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper )
+        {
+        return m_wrapper->InputBufferHead( );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API uint32_t get_InputBufferReadCount(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper )
+        {
+        return m_wrapper->InputBufferReadCount( );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API uint32_t get_InputBufferWriteCount(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper )
+        {
+        return m_wrapper->InputBufferWriteCount( );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API uint32_t get_InputMaxTailIndex(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper )
+        {
+        return m_wrapper->InputMaxTailIndex( );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API uint32_t get_cmd_memsize( void )
+        {
+        return (VVI_PARAMETERS_INPUT_MEMORY_SIZE +
+                VVI_PARAMETERS_OUTPUT_MEMORY_SIZE);
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API uint32_t get_framebuffer_memsize( void )
+        {
+        return VVI_SURFACEBUFFER_BASE_ADDRESS;
+        }
+
+    
+    SIMULATOR_GRAPHICSWRAPPER_API unsigned int execute_command(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper )
+        {
+        return m_wrapper->Execute( );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API void set_InputBufferTail(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper, uint32_t aVal )
+        {
+        m_wrapper->SetInputBufferTail( aVal );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API void set_InputBufferHead(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper, uint32_t aVal )
+        {
+        m_wrapper->SetInputBufferHead( aVal );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API void set_InputBufferReadCount(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper, uint32_t aVal )
+        {
+        m_wrapper->SetInputBufferReadCount( aVal );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API void set_InputBufferWriteCount(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper, uint32_t aVal )
+        {
+        m_wrapper->SetInputBufferWriteCount( aVal );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API void set_InputMaxTailIndex(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper, uint32_t aVal )
+        {
+        m_wrapper->SetInputMaxTailIndex( aVal );
+        }
+    SIMULATOR_GRAPHICSWRAPPER_API void signal_outputbuffer_semafore(  SimulatorGraphicsWrapper* aSimulatorGraphicsWrapper )
+        {
+        #ifdef KHRONOS_API_W_MULTITHREAD
+            Psu::platform_signal_semaphore(m_outputBufferSemaphore);
+        #endif
+        }
+
+    }