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[c-host] nvfbc: do not send frames that have not changed

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This commit is contained in:
Geoffrey McRae 2020-01-27 16:00:32 +11:00
parent 60acc3ef44
commit fc6681306e
1 changed files with 16 additions and 3 deletions
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19
c-host/platform/Windows/capture/NVFBC/src/nvfbc.c
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@ -46,6 +46,7 @@ struct iface
unsigned int width , height; unsigned int width , height;
uint8_t * frameBuffer; uint8_t * frameBuffer;
uint8_t * diffMap;
NvFBCFrameGrabInfo grabInfo; NvFBCFrameGrabInfo grabInfo;
@ -168,10 +169,10 @@ static bool nvfbc_init()
BUFFER_FMT_ARGB, BUFFER_FMT_ARGB,
!this->seperateCursor, !this->seperateCursor,
this->seperateCursor, this->seperateCursor,
false, true,
0, DIFFMAP_BLOCKSIZE_128X128,
(void **)&this->frameBuffer, (void **)&this->frameBuffer,
NULL, (void **)&this->diffMap,
&event &event
)) ))
{ {
@ -256,6 +257,18 @@ static CaptureResult nvfbc_capture()
if (result != CAPTURE_RESULT_OK) if (result != CAPTURE_RESULT_OK)
return result; return result;
bool changed = false;
for(unsigned int y = 0; y < this->height / 128; ++y)
for(unsigned int x = 0; x < this->width / 128; ++x)
if (this->diffMap[x*y])
{
changed = true;
break;
}
if (!changed)
return CAPTURE_RESULT_TIMEOUT;
memcpy(&this->grabInfo, &grabInfo, sizeof(grabInfo)); memcpy(&this->grabInfo, &grabInfo, sizeof(grabInfo));
lgSignalEvent(this->frameEvent); lgSignalEvent(this->frameEvent);
return CAPTURE_RESULT_OK; return CAPTURE_RESULT_OK;