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[c-host] dxgi: only flag frame updates if there was actually an update

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This commit is contained in:
Geoffrey McRae 2019-03-04 10:17:19 +11:00
parent 8df850023c
commit 942c417cbb
2 changed files with 15 additions and 12 deletions
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2
c-host/Makefile
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@ -5,7 +5,7 @@ OUTPUT = looking-glass-host
EXT =
CFLAGS = -std=gnu99 -Wall -Werror
CFLAGS += -g -O0
CFLAGS += -g -O3
CFLAGS += -I.
CFLAGS += -I../common

25
c-host/windows/capture/dxgi.c
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@ -40,7 +40,7 @@ struct iface
D3D_FEATURE_LEVEL featureLevel;
IDXGIOutputDuplication * dup;
ID3D11Texture2D * texture;
bool hasFrame;
bool needsRelease;
unsigned int width;
unsigned int height;
@ -424,7 +424,7 @@ static CaptureResult dxgi_capture(bool * hasFrameUpdate, bool * hasPointerUpdate
switch(status)
{
case S_OK:
this->hasFrame = true;
this->needsRelease = true;
break;
case DXGI_ERROR_WAIT_TIMEOUT:
@ -447,17 +447,20 @@ static CaptureResult dxgi_capture(bool * hasFrameUpdate, bool * hasPointerUpdate
return CAPTURE_RESULT_ERROR;
}
ID3D11DeviceContext_CopyResource(this->deviceContext,
(ID3D11Resource *)this->texture, (ID3D11Resource *)src);
if (frameInfo.LastPresentTime.QuadPart != 0)
{
ID3D11DeviceContext_CopyResource(this->deviceContext,
(ID3D11Resource *)this->texture, (ID3D11Resource *)src);
ID3D11Texture2D_Release(src);
IDXGIResource_Release(res);
*hasFrameUpdate = true;
ID3D11Texture2D_Release(src);
*hasFrameUpdate = true;
}
if (frameInfo.PointerShapeBufferSize > 0)
*hasPointerUpdate = true;
IDXGIResource_Release(res);
return CAPTURE_RESULT_OK;
}
@ -490,7 +493,7 @@ static bool dxgi_getFrame(CaptureFrame * frame)
static CaptureResult dxgi_releaseFrame()
{
assert(this);
if (!this->hasFrame)
if (!this->needsRelease)
return CAPTURE_RESULT_OK;
HRESULT status = IDXGIOutputDuplication_ReleaseFrame(this->dup);
@ -506,7 +509,7 @@ static CaptureResult dxgi_releaseFrame()
case WAIT_ABANDONED:
case DXGI_ERROR_ACCESS_LOST:
{
this->hasFrame = false;
this->needsRelease = false;
return CAPTURE_RESULT_REINIT;
}
@ -515,7 +518,7 @@ static CaptureResult dxgi_releaseFrame()
return CAPTURE_RESULT_ERROR;
}
this->hasFrame = false;
this->needsRelease = false;
return CAPTURE_RESULT_OK;
}