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[host] nvfbc: try all NVIDIA adapters in the system

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This will allow LG to start if the VM still has a virtual device as
the primary output.
This commit is contained in:
Geoffrey McRae 2022-05-18 16:27:17 +10:00
parent 0f8c0b5fb3
commit a41ab81a90
2 changed files with 33 additions and 5 deletions
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1
host/platform/Windows/capture/NVFBC/CMakeLists.txt
View File

@ -12,6 +12,7 @@ include_directories(file, "${nvfbc_sdk}/inc")
target_link_libraries(capture_NVFBC
platform_Windows
dwmapi
d3d9
)
target_include_directories(capture_NVFBC

31
host/platform/Windows/capture/NVFBC/src/nvfbc.c
View File

@ -36,6 +36,7 @@
#include <stdatomic.h>
#include <windows.h>
#include <dwmapi.h>
#include <d3d9.h>
#include <NvFBC/nvFBC.h>
#include "wrapper.h"
@ -232,7 +233,7 @@ static void nvfbc_initOptions(void)
.name = "adapterIndex",
.description = "The index of the adapter to capture from",
.type = OPTION_TYPE_INT,
.value.x_int = 0
.value.x_int = -1
},
{
.module = "nvfbc",
@ -315,11 +316,37 @@ static bool nvfbc_init(void)
}
int adapterIndex = option_get_int("nvfbc", "adapterIndex");
// NOTE: Calling this on hardware that doesn't support NvFBC such as GeForce
// causes a substantial performance pentalty even if it fails! As such we only
// attempt NvFBC as a last resort, or if configured via the app:capture
// option.
if (adapterIndex < 0)
{
IDirect3D9 * d3d = Direct3DCreate9(D3D_SDK_VERSION);
int adapterCount = IDirect3D9_GetAdapterCount(d3d);
for(int i = 0; i < adapterCount; ++i)
{
D3DADAPTER_IDENTIFIER9 ident;
IDirect3D9_GetAdapterIdentifier(d3d, i, 0, &ident);
if (ident.VendorId != 0x10DE)
continue;
if (NvFBCToSysCreate(i, privData, privDataLen, &this->nvfbc,
&this->maxWidth, &this->maxHeight))
{
adapterIndex = i;
break;
}
}
IDirect3D9_Release(d3d);
if (adapterIndex < 0)
{
free(privData);
return false;
}
}
else
if (!NvFBCToSysCreate(adapterIndex, privData, privDataLen, &this->nvfbc, &this->maxWidth, &this->maxHeight))
{
free(privData);