f15a83f581
This change adds a crop rectangle specified in window coordinates to the layer state. The all window pixels outside this crop rectangle are treated as though they were fully transparent. This change also adds the plumbing necessary for WindowManager to set that crop. Change-Id: I582bc445dc8c97d4c943d4db8d582a6ef5a66081
85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_SF_LAYER_STATE_H
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#define ANDROID_SF_LAYER_STATE_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <ui/Region.h>
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#include <ui/Rect.h>
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#include <gui/ISurface.h>
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namespace android {
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class Parcel;
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class ISurfaceComposerClient;
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struct layer_state_t {
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layer_state_t()
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: surface(0), what(0),
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x(0), y(0), z(0), w(0), h(0),
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alpha(0), tint(0), flags(0), mask(0),
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reserved(0)
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{
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matrix.dsdx = matrix.dtdy = 1.0f;
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matrix.dsdy = matrix.dtdx = 0.0f;
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crop.makeInvalid();
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}
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status_t write(Parcel& output) const;
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status_t read(const Parcel& input);
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struct matrix22_t {
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float dsdx;
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float dtdx;
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float dsdy;
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float dtdy;
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};
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SurfaceID surface;
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uint32_t what;
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float x;
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float y;
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uint32_t z;
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uint32_t w;
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uint32_t h;
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float alpha;
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uint32_t tint;
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uint8_t flags;
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uint8_t mask;
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uint8_t reserved;
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matrix22_t matrix;
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Rect crop;
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// non POD must be last. see write/read
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Region transparentRegion;
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};
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struct ComposerState {
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sp<ISurfaceComposerClient> client;
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layer_state_t state;
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status_t write(Parcel& output) const;
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status_t read(const Parcel& input);
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};
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}; // namespace android
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#endif // ANDROID_SF_LAYER_STATE_H
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