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Finally wrote makeDCRenderTarget() for the Windows backend. Now to use it.

This commit is contained in:
Pietro Gagliardi 2016-05-22 15:59:23 -04:00
parent 44cdc82fc7
commit 531f8ea19c
2 changed files with 28 additions and 1 deletions
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26
windows/draw.cpp
View File

@ -63,7 +63,31 @@ ID2D1HwndRenderTarget *makeHWNDRenderTarget(HWND hwnd)
&hprops,
&rt);
if (hr != S_OK)
logHRESULT(L"error creating area HWND render target", hr);
logHRESULT(L"error creating HWND render target", hr);
return rt;
}
ID2D1DCRenderTarget *makeHDCRenderTarget(HDC dc, RECT *r)
{
D2D1_RENDER_TARGET_PROPERTIES props;
ID2D1DCRenderTarget *rt;
HRESULT hr;
ZeroMemory(&props, sizeof (D2D1_RENDER_TARGET_PROPERTIES));
props.type = D2D1_RENDER_TARGET_TYPE_DEFAULT;
props.pixelFormat.format = DXGI_FORMAT_B8G8R8A8_UNORM;
props.pixelFormat.alphaMode = D2D1_ALPHA_MODE_PREMULTIPLIED;
props.dpiX = GetDeviceCaps(dc, LOGPIXELSX);
props.dpiY = GetDeviceCaps(dc, LOGPIXELSY);
props.usage = D2D1_RENDER_TARGET_USAGE_GDI_COMPATIBLE;
props.minLevel = D2D1_FEATURE_LEVEL_DEFAULT;
hr = d2dfactory->CreateDCRenderTarget(&props, &rt);
if (hr != S_OK)
logHRESULT(L"error creating DC render target", hr);
hr = rt->BindDC(dc, r);
if (hr != S_OK)
logHRESULT(L"error binding DC to DC render target", hr);
return rt;
}

3
windows/uipriv_windows.hpp
View File

@ -145,3 +145,6 @@ extern void getSizing(HWND hwnd, uiWindowsSizing *sizing, HFONT font);
// TODO
#include "_uipriv_migrate.hpp"
// draw.cpp
extern ID2D1DCRenderTarget *makeHDCRenderTarget(HDC dc, RECT *r);