7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 #include "systemScale.h"
26 #include <d2d1.h>
27 #include <jdk_util.h>
28 #ifndef MDT_EFFECTIVE_DPI
29 #define MDT_EFFECTIVE_DPI 0
30 #endif
31
32 void GetScreenDpi(HMONITOR hmon, float *dpiX, float *dpiY)
33 {
34 unsigned x = 0;
35 unsigned y = 0;
36
37 // for debug purposes
38 static float scale = -2.0f;
39 if (scale == -2) {
40 scale = -1;
41 char *uiScale = getenv("J2D_UISCALE");
42 if (uiScale != NULL) {
43 scale = (float)strtod(uiScale, NULL);
44 if (errno == ERANGE || scale <= 0) {
45 scale = -1;
46 }
47 }
|
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 #include "systemScale.h"
26 #include <d2d1.h>
27 #include <jni.h>
28 #include <jvm.h>
29 #include <jdk_util_md.h>
30 #ifndef MDT_EFFECTIVE_DPI
31 #define MDT_EFFECTIVE_DPI 0
32 #endif
33
34 void GetScreenDpi(HMONITOR hmon, float *dpiX, float *dpiY)
35 {
36 unsigned x = 0;
37 unsigned y = 0;
38
39 // for debug purposes
40 static float scale = -2.0f;
41 if (scale == -2) {
42 scale = -1;
43 char *uiScale = getenv("J2D_UISCALE");
44 if (uiScale != NULL) {
45 scale = (float)strtod(uiScale, NULL);
46 if (errno == ERANGE || scale <= 0) {
47 scale = -1;
48 }
49 }
|