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[host] fixed incorrect checking of difference map
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2d5b633397
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@ -140,6 +140,7 @@ bool NvFBC::Initialize(CaptureOptions * options)
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setupParams.eMode = NVFBC_TOSYS_ARGB;
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setupParams.bWithHWCursor = TRUE;
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setupParams.bDiffMap = TRUE;
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setupParams.eDiffMapBlockSize = (NvU32)NVFBC_TOSYS_DIFFMAP_BLOCKSIZE_128X128;
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setupParams.ppBuffer = (void **)&m_frameBuffer;
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setupParams.ppDiffMap = (void **)&m_diffMap;
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@ -226,13 +227,16 @@ bool NvFBC::GrabFrame(struct FrameInfo & frame)
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if (status == NVFBC_SUCCESS)
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{
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const int diffW = (m_grabInfo.dwWidth + 0x7F) >> 7;
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const int diffH = (m_grabInfo.dwHeight + 0x7F) >> 7;
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bool hasDiff = false;
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for (int r = (m_grabInfo.dwWidth * m_grabInfo.dwHeight) / (128 * 128); r >= 0; --r)
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if (*((uint8_t*)m_diffMap + r))
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{
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hasDiff = true;
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break;
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}
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for(int y = 0; y < diffH && !hasDiff; ++y)
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for (int x = 0; x < diffW; ++x)
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if (m_diffMap[y * diffW + x])
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{
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hasDiff = true;
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break;
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}
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if (!hasDiff)
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{
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@ -57,8 +57,8 @@ namespace Capture
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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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void * m_diffMap;
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uint8_t * m_frameBuffer;
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uint8_t * m_diffMap;
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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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