blob: 3e8c2aac6a8b44cdfaa58631251edf621433951d [file] [log] [blame]
// Copyright 2020 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "starboard/android/shared/jni_env_ext.h"
#include "starboard/android/shared/jni_utils.h"
#include "starboard/android/shared/window_internal.h"
using starboard::android::shared::JniEnvExt;
using starboard::android::shared::ScopedLocalJavaRef;
float SbWindowGetDiagonalSizeInInches(SbWindow window) {
if (!SbWindowIsValid(window)) {
SB_DLOG(ERROR) << __FUNCTION__ << ": Invalid window.";
return 0.0f;
}
int32_t width_pixels = ANativeWindow_getWidth(window->native_window);
int32_t height_pixels = ANativeWindow_getHeight(window->native_window);
JniEnvExt* env = JniEnvExt::Get();
ScopedLocalJavaRef<jobject> display_dpi(env->CallStarboardObjectMethodOrAbort(
"getDisplayDpi", "()Landroid/util/SizeF;"));
float xdpi =
env->CallFloatMethodOrAbort(display_dpi.Get(), "getWidth", "()F");
float ydpi =
env->CallFloatMethodOrAbort(display_dpi.Get(), "getHeight", "()F");
if (xdpi < 0.1f || ydpi < 0.1f) {
SB_DLOG(ERROR) << __FUNCTION__ << ": Invalid display values.";
return 0.0f;
}
float width_inches = width_pixels / xdpi;
float height_inches = height_pixels / ydpi;
float diagonal_inches = sqrt(pow(width_inches, 2) + pow(height_inches, 2));
return diagonal_inches;
}