symbian-qemu-0.9.1-12/model-libraries/syborg-graphicswrapper/syborg-graphicswrapper.cpp
author Gareth Stockwell <gareth.stockwell@accenture.com>
Wed, 22 Sep 2010 20:10:53 +0100
branchgraphics-phase-3
changeset 113 b842c0cb760e
parent 111 345f1c88c950
permissions -rw-r--r--
Backed out changeset b6c206049d8a The nvmemmory library depends on a modification to qemu; this change is therefore backed out in order to allow NVM functionality to be merged into graphics-phase-3 by transplanting individual commits.
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// This is the main DLL file.
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#include "platformtypes.h"
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#include <KhronosAPIWrapper.h>
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#include <guestvideodriverinterfaceconstants.h>  //Registers and enums 
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#include <platformthreading.h>  //mutex
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#include <graphicsvhwcallback.h>
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#include "syborg-graphicswrapper.h"
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SyborgGraphicsWrapper::SyborgGraphicsWrapper()
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    {															
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    }
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SyborgGraphicsWrapper::~SyborgGraphicsWrapper()
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    {
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    delete m_wrapper;
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    m_wrapper = 0;
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    Psu::platform_release_semaphore(m_outputBufferSemaphore);
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    }
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int SyborgGraphicsWrapper::Reset( uint32_t *aGraphicsMemBase,  uint32_t *aCommandMemBase )
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    {
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    int ret = -1;
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    if ( m_wrapper )
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        {
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        delete m_wrapper;
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	    }
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    m_wrapper = NULL;
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    uint8_t *cmd_buffer = (uint8_t *)aCommandMemBase;
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    uint8_t *frame_buffer = (uint8_t *)aGraphicsMemBase;
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    if( (cmd_buffer != NULL) && (frame_buffer != NULL) )
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        {
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        m_wrapper = new KhronosAPIWrapper( (MGraphicsVHWCallback*)this,
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            frame_buffer, &cmd_buffer[VVHW_INPUT_BASE], &cmd_buffer[VVHW_OUTPUT_BASE] );
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        //Reset synchronisation mechanisms
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        Psu::platform_release_semaphore(m_outputBufferSemaphore);
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        Psu::platform_create_semaphore(m_outputBufferSemaphore, 1, 1);
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        ret = 0;
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        }
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    else
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        {
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        ret = -1;
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        }
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    return ret;
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    }
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void SyborgGraphicsWrapper::LockOutputBuffer()
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    {
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    #ifdef KHRONOS_API_W_MULTITHREAD
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    Psu::platform_wait_for_signal(m_outputBufferSemaphore);
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    #endif
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    }
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void SyborgGraphicsWrapper::ReleaseOutputBuffer(){}
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void SyborgGraphicsWrapper::ProcessingDone(int i)
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    {
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    m_pythonCallBack( i );
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    }
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extern "C"
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    {
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    SYBORG_GRAPHICSWRAPPER_API SyborgGraphicsWrapper* create_SyborgGraphicsWrapper()
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        {
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        return new SyborgGraphicsWrapper();
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        }
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    SYBORG_GRAPHICSWRAPPER_API int initialize_SyborgGraphicsWrapper( SyborgGraphicsWrapper* aSyborgGraphicsWrapper )
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        {
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        Psu::platform_create_semaphore(m_outputBufferSemaphore, 1, 1);
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        // Change to proper error handling
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        return 0;
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        }
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    SYBORG_GRAPHICSWRAPPER_API int set_GraphicsCallBack( SyborgGraphicsWrapper* aSyborgGraphicsWrapper, int (*aGraphicsCallBack) (int) )
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        {
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        m_pythonCallBack = aGraphicsCallBack;
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        // Change to proper error handling
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        return 0;
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        }
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    SYBORG_GRAPHICSWRAPPER_API int reset_SyborgGraphicsWrapper(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper, uint32_t *aGraphicsMemBase,  uint32_t *aCommandMemBase )
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        {
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        return aSyborgGraphicsWrapper->Reset( aGraphicsMemBase, aCommandMemBase );
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        }
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    SYBORG_GRAPHICSWRAPPER_API uint32_t get_InputBufferTail(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper )
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        {
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        return m_wrapper->InputBufferTail();
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        }
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    SYBORG_GRAPHICSWRAPPER_API uint32_t get_InputBufferHead(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper )
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        {
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        return m_wrapper->InputBufferHead( );
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        }
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    SYBORG_GRAPHICSWRAPPER_API uint32_t get_InputBufferReadCount(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper )
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        {
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        return m_wrapper->InputBufferReadCount( );
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        }
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    SYBORG_GRAPHICSWRAPPER_API uint32_t get_InputBufferWriteCount(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper )
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        {
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        return m_wrapper->InputBufferWriteCount( );
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        }
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    SYBORG_GRAPHICSWRAPPER_API uint32_t get_InputMaxTailIndex(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper )
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        {
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        return m_wrapper->InputMaxTailIndex( );
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        }
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    SYBORG_GRAPHICSWRAPPER_API uint32_t get_cmd_memsize( void )
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        {
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        return (VVI_PARAMETERS_INPUT_MEMORY_SIZE +
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                VVI_PARAMETERS_OUTPUT_MEMORY_SIZE);
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        }
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    SYBORG_GRAPHICSWRAPPER_API uint32_t get_framebuffer_memsize( void )
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        {
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        return VVI_FRAMEBUFFER_MEMORY_SIZE;
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        }
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    SYBORG_GRAPHICSWRAPPER_API unsigned int execute_command(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper )
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        {
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        return m_wrapper->Execute( );
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        }
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    SYBORG_GRAPHICSWRAPPER_API void set_InputBufferTail(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper, uint32_t aVal )
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        {
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        m_wrapper->SetInputBufferTail( aVal );
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        }
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    SYBORG_GRAPHICSWRAPPER_API void set_InputBufferHead(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper, uint32_t aVal )
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        {
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        m_wrapper->SetInputBufferHead( aVal );
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        }
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    SYBORG_GRAPHICSWRAPPER_API void set_InputBufferReadCount(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper, uint32_t aVal )
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        {
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        m_wrapper->SetInputBufferReadCount( aVal );
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        }
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    SYBORG_GRAPHICSWRAPPER_API void set_InputBufferWriteCount(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper, uint32_t aVal )
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        {
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        m_wrapper->SetInputBufferWriteCount( aVal );
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        }
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    SYBORG_GRAPHICSWRAPPER_API void set_InputMaxTailIndex(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper, uint32_t aVal )
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        {
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        m_wrapper->SetInputMaxTailIndex( aVal );
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        }
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    SYBORG_GRAPHICSWRAPPER_API void signal_outputbuffer_semafore(  SyborgGraphicsWrapper* aSyborgGraphicsWrapper )
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        {
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        #ifdef KHRONOS_API_W_MULTITHREAD
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            Psu::platform_signal_semaphore(m_outputBufferSemaphore);
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        #endif
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        }
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    }