8232724: Remove indirection with calling JNU_NewStringPlatform
Reviewed-by: dholmes, clanger
/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
#include "systemScale.h"
#include <d2d1.h>
#include <jdk_util.h>
#ifndef MDT_EFFECTIVE_DPI
#define MDT_EFFECTIVE_DPI 0
#endif
void GetScreenDpi(HMONITOR hmon, float *dpiX, float *dpiY)
{
unsigned x = 0;
unsigned y = 0;
// for debug purposes
static float scale = -2.0f;
if (scale == -2) {
scale = -1;
char *uiScale = getenv("J2D_UISCALE");
if (uiScale != NULL) {
scale = (float)strtod(uiScale, NULL);
if (errno == ERANGE || scale <= 0) {
scale = -1;
}
}
}
if (scale > 0) {
*dpiX = *dpiY = scale;
return;
}
typedef HRESULT(WINAPI D2D1CreateFactoryFunc)
(D2D1_FACTORY_TYPE, REFIID,
CONST D2D1_FACTORY_OPTIONS*, ID2D1Factory**);
typedef HRESULT(WINAPI GetDpiForMonitorFunc)(HMONITOR, int, UINT*, UINT*);
static HMODULE hLibSHCoreDll = NULL;
static GetDpiForMonitorFunc *lpGetDpiForMonitor = NULL;
if (hLibSHCoreDll == NULL) {
hLibSHCoreDll = JDK_LoadSystemLibrary("shcore.dll");
if (hLibSHCoreDll != NULL) {
lpGetDpiForMonitor = (GetDpiForMonitorFunc*)GetProcAddress(
hLibSHCoreDll, "GetDpiForMonitor");
}
}
if (lpGetDpiForMonitor != NULL) {
HRESULT hResult = lpGetDpiForMonitor(hmon,
MDT_EFFECTIVE_DPI, &x, &y);
if (hResult == S_OK) {
*dpiX = static_cast<float>(x);
*dpiY = static_cast<float>(y);
}
} else {
static HMODULE d2dDll = NULL;
static BOOL loadAttempted = FALSE;
static D2D1CreateFactoryFunc *lpD2D1CreateFactory = NULL;
if (!loadAttempted && d2dDll == NULL) {
loadAttempted = TRUE;
d2dDll = JDK_LoadSystemLibrary("d2d1.dll");
}
if (d2dDll != NULL && lpD2D1CreateFactory == NULL) {
lpD2D1CreateFactory = (D2D1CreateFactoryFunc*)GetProcAddress(
d2dDll, "D2D1CreateFactory");
}
if (lpD2D1CreateFactory != NULL) {
ID2D1Factory* m_pDirect2dFactory;
HRESULT res = lpD2D1CreateFactory
(D2D1_FACTORY_TYPE_SINGLE_THREADED,
__uuidof(ID2D1Factory), NULL,
&m_pDirect2dFactory);
if (res == S_OK) {
m_pDirect2dFactory->GetDesktopDpi(dpiX, dpiY);
m_pDirect2dFactory->Release();
}
}
}
return;
}
HMONITOR WINAPI getPrimaryMonitor()
{
const POINT point = { 0, 0 };
return MonitorFromPoint(point, MONITOR_DEFAULTTOPRIMARY);
}