diff options
Diffstat (limited to 'guest/hals/hwcomposer/common/geometry_utils.cpp')
| -rw-r--r-- | guest/hals/hwcomposer/common/geometry_utils.cpp | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/guest/hals/hwcomposer/common/geometry_utils.cpp b/guest/hals/hwcomposer/common/geometry_utils.cpp new file mode 100644 index 000000000..ade2d787a --- /dev/null +++ b/guest/hals/hwcomposer/common/geometry_utils.cpp @@ -0,0 +1,41 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * 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 "guest/hals/hwcomposer/common/geometry_utils.h" + +#include <algorithm> +#include <utility> + +namespace cvd { + +bool LayersOverlap(const hwc_layer_1_t& layer1, const hwc_layer_1_t& layer2) { + int left1 = layer1.displayFrame.left; + int right1 = layer1.displayFrame.right; + int top1 = layer1.displayFrame.top; + int bottom1 = layer1.displayFrame.bottom; + + int left2 = layer2.displayFrame.left; + int right2 = layer2.displayFrame.right; + int top2 = layer2.displayFrame.top; + int bottom2 = layer2.displayFrame.bottom; + + bool overlap_x = left1 < right2 && left2 < right1; + bool overlap_y = top1 < bottom2 && top2 < bottom1; + + return overlap_x && overlap_y; +} + +} // namespace cvd |