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[host] NvFBC is now functional
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host/.gitignore
vendored
2
host/.gitignore
vendored
@ -1,4 +1,4 @@
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a## Ignore Visual Studio temporary files, build results, and
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## Ignore Visual Studio temporary files, build results, and
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## files generated by popular Visual Studio add-ons.
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##
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## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
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@ -15,7 +15,9 @@ namespace Capture
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{
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NvFBC::NvFBC() :
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m_hDLL(NULL)
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m_initialized(false),
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m_hDLL(NULL),
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m_nvFBC(NULL)
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{
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}
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@ -81,8 +83,6 @@ namespace Capture
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params.pDevice = NULL;
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params.dwAdapterIdx = 0;
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// do not remove this
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#include "NvFBCSpecial.h"
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if (m_fnCreateEx(¶ms) != NVFBC_SUCCESS)
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{
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@ -91,44 +91,135 @@ namespace Capture
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return false;
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}
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m_maxCaptureWidth = params.dwMaxDisplayWidth;
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m_maxCaptureHeight = params.dwMaxDisplayHeight;
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m_maxCaptureWidth = params.dwMaxDisplayWidth;
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m_maxCaptureHeight = params.dwMaxDisplayHeight;
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m_nvFBC = static_cast<NvFBCToSys *>(params.pNvFBC);
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NVFBC_TOSYS_SETUP_PARAMS setupParams;
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ZeroMemory(&setupParams, sizeof(NVFBC_TOSYS_SETUP_PARAMS));
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setupParams.dwVersion = NVFBC_TOSYS_SETUP_PARAMS_VER;
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setupParams.eMode = NVFBC_TOSYS_RGB;
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setupParams.bWithHWCursor = TRUE;
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setupParams.bDiffMap = FALSE;
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setupParams.ppBuffer = (void **)&m_frameBuffer;
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setupParams.ppDiffMap = NULL;
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m_initialized = true;
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return true;
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if (m_nvFBC->NvFBCToSysSetUp(&setupParams) != NVFBC_SUCCESS)
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{
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DEBUG_ERROR("NvFBCToSysSetUp Failed");
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DeInitialize();
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return false;
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}
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// this is required according to NVidia sample code
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Sleep(100);
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ZeroMemory(&m_grabFrameParams, sizeof(NVFBC_TOSYS_GRAB_FRAME_PARAMS));
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ZeroMemory(&m_grabInfo, sizeof(NvFBCFrameGrabInfo));
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m_grabFrameParams.dwVersion = NVFBC_TOSYS_GRAB_FRAME_PARAMS_VER;
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m_grabFrameParams.dwFlags = NVFBC_TOSYS_NOFLAGS;
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m_grabFrameParams.dwStartX = 0;
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m_grabFrameParams.dwStartY = 0;
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m_grabFrameParams.eGMode = NVFBC_TOSYS_SOURCEMODE_SCALE;
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m_grabFrameParams.pNvFBCFrameGrabInfo = &m_grabInfo;
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m_initialized = true;
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return true;
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}
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void NvFBC::DeInitialize()
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{
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m_fnCreateEx = NULL;
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m_fnSetGlobalFlags = NULL;
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m_fnGetStatusEx = NULL;
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m_fnEnable = NULL;
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m_frameBuffer = NULL;
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FreeLibrary(m_hDLL);
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m_hDLL = NULL;
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if (m_nvFBC)
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{
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m_nvFBC->NvFBCToSysRelease();
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m_nvFBC = NULL;
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}
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m_maxCaptureWidth = 0;
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m_maxCaptureHeight = 0;
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m_fnCreateEx = NULL;
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m_fnSetGlobalFlags = NULL;
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m_fnGetStatusEx = NULL;
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m_fnEnable = NULL;
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if (m_hDLL)
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{
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FreeLibrary(m_hDLL);
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m_hDLL = NULL;
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}
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m_initialized = false;
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}
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FrameType NvFBC::GetFrameType()
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{
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if (!m_initialized)
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return FRAME_TYPE_INVALID;
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return FRAME_TYPE_RGB;
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}
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FrameComp NvFBC::GetFrameCompression()
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{
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if (!m_initialized)
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return FRAME_COMP_NONE;
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return FRAME_COMP_NONE;
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}
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size_t NvFBC::GetMaxFrameSize()
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{
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return 0;
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if (!m_initialized)
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return false;
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return m_maxCaptureWidth * m_maxCaptureHeight * 3;
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}
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bool NvFBC::GrabFrame(void * buffer, size_t bufferSize, size_t * outLen)
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bool NvFBC::GrabFrame(struct FrameInfo & frame)
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{
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if (!m_initialized)
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return false;
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const HWND hDesktop = GetDesktopWindow();
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RECT desktop;
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GetWindowRect(hDesktop, &desktop);
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m_grabFrameParams.dwTargetWidth = desktop.right;
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m_grabFrameParams.dwTargetHeight = desktop.bottom;
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for(int i = 0; i < 2; ++i)
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{
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NVFBCRESULT status = m_nvFBC->NvFBCToSysGrabFrame(&m_grabFrameParams);
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if (status == NVFBC_SUCCESS)
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{
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frame.width = m_grabInfo.dwWidth;
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frame.height = m_grabInfo.dwHeight;
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frame.stride = m_grabInfo.dwBufferWidth;
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frame.outSize = m_grabInfo.dwBufferWidth * m_grabInfo.dwHeight * 3;
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memcpy(frame.buffer, m_frameBuffer, frame.outSize);
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return true;
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}
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if (status == NVFBC_ERROR_DYNAMIC_DISABLE)
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{
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DEBUG_ERROR("NvFBC was disabled by someone else");
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return false;
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}
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if (status == NVFBC_ERROR_INVALIDATED_SESSION)
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{
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DEBUG_WARN("Session was invalidated, attempting to restart");
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DeInitialize();
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if (!Initialize())
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{
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DEBUG_ERROR("Failed to re-iniaialize");
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return false;
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}
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}
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}
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DEBUG_ERROR("Failed to grab frame");
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return false;
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}
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@ -20,7 +20,7 @@ namespace Capture
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enum FrameType GetFrameType();
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enum FrameComp GetFrameCompression();
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size_t GetMaxFrameSize();
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bool GrabFrame(void * buffer, size_t bufferSize, size_t * outLen);
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bool GrabFrame(struct FrameInfo & frame);
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private:
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bool m_initialized;
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@ -32,5 +32,9 @@ namespace Capture
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NvFBC_EnableFunctionType m_fnEnable;
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DWORD m_maxCaptureWidth, m_maxCaptureHeight;
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NvFBCToSys * m_nvFBC;
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void * m_frameBuffer;
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NvFBCFrameGrabInfo m_grabInfo;
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NVFBC_TOSYS_GRAB_FRAME_PARAMS m_grabFrameParams;
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};
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};
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#include "ICapture.h"
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#include "Capture\NvFBC.h"
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static class CaptureFactory
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class CaptureFactory
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{
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public:
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static ICapture * GetCaptureDevice()
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@ -2,6 +2,16 @@
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#include "common/KVMGFXHeader.h"
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struct FrameInfo
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{
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unsigned int width;
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unsigned int height;
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unsigned int stride;
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void * buffer;
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size_t bufferSize;
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size_t outSize;
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};
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__interface ICapture
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{
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public:
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@ -10,5 +20,5 @@ public:
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enum FrameType GetFrameType();
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enum FrameComp GetFrameCompression();
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size_t GetMaxFrameSize();
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bool GrabFrame(void * buffer, size_t bufferSize, size_t * outLen);
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bool GrabFrame(struct FrameInfo & frame);
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};
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@ -65,11 +65,16 @@ bool Service::Initialize()
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}
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KVMGFXHeader * header = static_cast<KVMGFXHeader*>(m_memory);
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// we save this as it might actually be valid
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UINT16 hostID = header->hostID;
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ZeroMemory(header, sizeof(KVMGFXHeader));
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memcpy(header->magic, KVMGFX_HEADER_MAGIC, sizeof(KVMGFX_HEADER_MAGIC));
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header->version = 2;
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header->guestID = m_ivshmem->GetPeerID();
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header->hostID = hostID;
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m_initialized = true;
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return true;
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@ -109,17 +114,26 @@ bool Service::Process(HANDLE stopEvent)
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// setup the header
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header->frameType = m_capture->GetFrameType();
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header->compType = m_capture->GetFrameCompression();
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header->dataLen = 0;
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FrameInfo frame;
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frame.buffer = data;
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frame.bufferSize = m_ivshmem->GetSize() - sizeof(KVMGFXHeader);
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// capture a frame of data
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if (!m_capture->GrabFrame(
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data,
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m_ivshmem->GetSize() - sizeof(KVMGFXHeader),
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&header->dataLen))
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if (!m_capture->GrabFrame(frame))
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{
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header->dataLen = 0;
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DEBUG_ERROR("Capture failed");
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return false;
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}
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// copy the frame details into the header
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header->width = frame.width;
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header->height = frame.height;
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header->stride = frame.stride;
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header->dataLen = frame.outSize;
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// tell the host where the cursor is
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POINT cursorPos;
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GetCursorPos(&cursorPos);
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#include "common\debug.h"
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static class Util
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class Util
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{
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public:
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static std::string GetSystemRoot()
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