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[host] fixed incorrect checking of difference map

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This commit is contained in:
Geoffrey McRae 2017-12-06 00:14:45 +11:00
parent 2d5b633397
commit 51bc7631ab
2 changed files with 12 additions and 8 deletions
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16
host/Capture/NvFBC.cpp
View File

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

4
host/Capture/NvFBC.h
View File

@ -57,8 +57,8 @@ namespace Capture
DWORD m_maxCaptureWidth, m_maxCaptureHeight;
NvFBCToSys * m_nvFBC;
void * m_frameBuffer;
void * m_diffMap;
uint8_t * m_frameBuffer;
uint8_t * m_diffMap;
NvFBCFrameGrabInfo m_grabInfo;
NVFBC_TOSYS_GRAB_FRAME_PARAMS m_grabFrameParams;
};