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[c-host] dont use DX12 feature levels on Windows8

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Fixes #218
This commit is contained in:
Geoffrey McRae 2020-01-06 20:52:27 +11:00
parent 9282ed19b2
commit 5db4c32035
4 changed files with 52 additions and 3 deletions
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2
VERSION
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@ -1 +1 @@
B1-54-g5033d17990+1
B1-55-g7469f54122+1

28
c-host/platform/Windows/capture/DXGI/src/dxgi.c
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@ -307,7 +307,18 @@ static bool dxgi_init(void * pointerShape, const unsigned int pointerSize)
goto fail;
}
static const D3D_FEATURE_LEVEL featureLevels[] =
static const D3D_FEATURE_LEVEL win8[] =
{
D3D_FEATURE_LEVEL_11_1,
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0,
D3D_FEATURE_LEVEL_9_3,
D3D_FEATURE_LEVEL_9_2,
D3D_FEATURE_LEVEL_9_1
};
static const D3D_FEATURE_LEVEL win10[] =
{
D3D_FEATURE_LEVEL_12_1,
D3D_FEATURE_LEVEL_12_0,
@ -320,6 +331,19 @@ static bool dxgi_init(void * pointerShape, const unsigned int pointerSize)
D3D_FEATURE_LEVEL_9_1
};
const D3D_FEATURE_LEVEL * featureLevels;
unsigned int featureLevelCount;
if (IsWindows8())
{
featureLevels = win8;
featureLevelCount = sizeof(win8) / sizeof(D3D_FEATURE_LEVEL);
}
else
{
featureLevels = win10;
featureLevelCount = sizeof(win10) / sizeof(D3D_FEATURE_LEVEL);
}
IDXGIAdapter * tmp;
status = IDXGIAdapter1_QueryInterface(this->adapter, &IID_IDXGIAdapter, (void **)&tmp);
if (FAILED(status))
@ -333,7 +357,7 @@ static bool dxgi_init(void * pointerShape, const unsigned int pointerSize)
D3D_DRIVER_TYPE_UNKNOWN,
NULL,
D3D11_CREATE_DEVICE_VIDEO_SUPPORT,
featureLevels, sizeof(featureLevels) / sizeof(D3D_FEATURE_LEVEL),
featureLevels, featureLevelCount,
D3D11_SDK_VERSION,
&this->device,
&this->featureLevel,

3
common/include/common/windebug.h
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@ -21,6 +21,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include "debug.h"
#include <windows.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
@ -30,6 +31,8 @@ void DebugWinError(const char * file, const unsigned int line, const char * func
#define DEBUG_WINERROR(x, y) DebugWinError(STRIPPATH(__FILE__), __LINE__, __FUNCTION__, x, y)
bool IsWindows8();
#ifdef __cplusplus
}
#endif

22
common/src/platform/windows/windebug.c
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@ -39,4 +39,26 @@ void DebugWinError(const char * file, const unsigned int line, const char * func
fprintf(stderr, "[E] %20s:%-4u | %-30s | %s: 0x%08x (%s)\n", file, line, function, desc, (int)status, buffer);
LocalFree(buffer);
}
/* credit for this function to: https://stackoverflow.com/questions/17399302/how-can-i-detect-windows-8-1-in-a-desktop-application */
inline static BOOL CompareWindowsVersion(DWORD dwMajorVersion, DWORD dwMinorVersion)
{
OSVERSIONINFOEX ver;
DWORDLONG dwlConditionMask = 0;
ZeroMemory(&ver, sizeof(OSVERSIONINFOEX));
ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
ver.dwMajorVersion = dwMajorVersion;
ver.dwMinorVersion = dwMinorVersion;
VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_EQUAL);
VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_EQUAL);
return VerifyVersionInfo(&ver, VER_MAJORVERSION | VER_MINORVERSION, dwlConditionMask);
}
bool IsWindows8()
{
return CompareWindowsVersion(6, 3) == TRUE;
}