Mirrored_Repos/LookingGlass
1
0
Fork 0
mirror of https://github.com/gnif/LookingGlass.git synced 2025-08-05 18:24:08 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

get display DPI info to scale mouse movement

Browse Source
This commit is contained in:
Quantum
2021-01-04 16:01:24 -05:00
committed by Geoffrey McRae
parent 0bd5f0b2f1
commit 7e4d323427
10 changed files with 123 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
host/platform/Windows/capture/DXGI/src/dxgi.c
View File

@@ -24,6 +24,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include "common/option.h"
#include "common/locking.h"
#include "common/event.h"
#include "common/dpi.h"
#include <assert.h>
#include <stdatomic.h>
@@ -98,12 +99,12 @@ struct iface
unsigned int pitch;
unsigned int stride;
CaptureFormat format;
unsigned int dpi;
int lastPointerX, lastPointerY;
bool lastPointerVisible;
};
static bool dpiDone = false;
static struct iface * this = NULL;
// forwards
@@ -210,22 +211,6 @@ static bool dxgi_init()
DEBUG_INFO("looking-glass-host.exe InstallService");
}
// this is required for DXGI 1.5 support to function
if (!dpiDone)
{
DECLARE_HANDLE(DPI_AWARENESS_CONTEXT);
#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 ((DPI_AWARENESS_CONTEXT)-4)
typedef BOOL (*User32_SetProcessDpiAwarenessContext)(DPI_AWARENESS_CONTEXT value);
HMODULE user32 = LoadLibraryA("user32.dll");
User32_SetProcessDpiAwarenessContext fn;
fn = (User32_SetProcessDpiAwarenessContext)GetProcAddress(user32, "SetProcessDpiAwarenessContext");
if (fn)
fn(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
FreeLibrary(user32);
dpiDone = true;
}
HRESULT status;
DXGI_OUTPUT_DESC outputDesc;
@@ -388,6 +373,7 @@ static bool dxgi_init()
IDXGIAdapter1_GetDesc1(this->adapter, &adapterDesc);
this->width = outputDesc.DesktopCoordinates.right - outputDesc.DesktopCoordinates.left;
this->height = outputDesc.DesktopCoordinates.bottom - outputDesc.DesktopCoordinates.top;
this->dpi = monitor_dpi(outputDesc.Monitor);
++this->formatVer;
DEBUG_INFO("Device Descripion: %ls" , adapterDesc.Description);
@@ -688,6 +674,14 @@ static unsigned int dxgi_getMaxFrameSize()
return this->height * this->pitch;
}
static unsigned int dxgi_getMouseScale()
{
assert(this);
assert(this->initialized);
return this->dpi * 100 / DPI_100_PERCENT;
}
static CaptureResult dxgi_hResultToCaptureResult(const HRESULT status)
{
switch(status)
@@ -1013,6 +1007,7 @@ struct CaptureInterface Capture_DXGI =
.deinit = dxgi_deinit,
.free = dxgi_free,
.getMaxFrameSize = dxgi_getMaxFrameSize,
.getMouseScale = dxgi_getMouseScale,
.capture = dxgi_capture,
.waitFrame = dxgi_waitFrame,
.getFrame = dxgi_getFrame