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/*
* Copyright (C) 2008 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.
*/
#ifndef ANDROID_SF_LAYER_STATE_H
#define ANDROID_SF_LAYER_STATE_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <ui/Region.h>
#include <ui/Rect.h>
#include <gui/IGraphicBufferProducer.h>
#include <math/vec3.h>
namespace android {
class Parcel;
class ISurfaceComposerClient;
/*
* Used to communicate layer information between SurfaceFlinger and its clients.
*/
struct layer_state_t {
enum {
eLayerHidden = 0x01, // SURFACE_HIDDEN in SurfaceControl.java
eLayerOpaque = 0x02, // SURFACE_OPAQUE
eLayerSecure = 0x80, // SECURE
};
enum {
ePositionChanged = 0x00000001,
eLayerChanged = 0x00000002,
eSizeChanged = 0x00000004,
eAlphaChanged = 0x00000008,
eMatrixChanged = 0x00000010,
eTransparentRegionChanged = 0x00000020,
eFlagsChanged = 0x00000040,
eLayerStackChanged = 0x00000080,
eCropChanged = 0x00000100,
eDeferTransaction = 0x00000200,
eFinalCropChanged = 0x00000400,
eOverrideScalingModeChanged = 0x00000800,
eGeometryAppliesWithResize = 0x00001000,
eReparentChildren = 0x00002000,
eDetachChildren = 0x00004000,
eRelativeLayerChanged = 0x00008000,
eReparent = 0x00010000,
eColorChanged = 0x00020000,
eDestroySurface = 0x00040000
};
layer_state_t()
: what(0),
x(0), y(0), z(0), w(0), h(0), layerStack(0),
alpha(0), flags(0), mask(0),
reserved(0), crop(Rect::INVALID_RECT),
finalCrop(Rect::INVALID_RECT), frameNumber(0),
overrideScalingMode(-1)
{
matrix.dsdx = matrix.dtdy = 1.0f;
matrix.dsdy = matrix.dtdx = 0.0f;
}
void merge(const layer_state_t& other);
status_t write(Parcel& output) const;
status_t read(const Parcel& input);
struct matrix22_t {
float dsdx{0};
float dtdx{0};
float dtdy{0};
float dsdy{0};
};
sp<IBinder> surface;
uint32_t what;
float x;
float y;
int32_t z;
uint32_t w;
uint32_t h;
uint32_t layerStack;
float alpha;
uint8_t flags;
uint8_t mask;
uint8_t reserved;
matrix22_t matrix;
Rect crop;
Rect finalCrop;
sp<IBinder> barrierHandle;
sp<IBinder> reparentHandle;
uint64_t frameNumber;
int32_t overrideScalingMode;
sp<IGraphicBufferProducer> barrierGbp;
sp<IBinder> relativeLayerHandle;
sp<IBinder> parentHandleForChild;
half3 color;
// non POD must be last. see write/read
Region transparentRegion;
};
struct ComposerState {
sp<ISurfaceComposerClient> client;
layer_state_t state;
status_t write(Parcel& output) const;
status_t read(const Parcel& input);
};
struct DisplayState {
enum {
eOrientationDefault = 0,
eOrientation90 = 1,
eOrientation180 = 2,
eOrientation270 = 3,
eOrientationUnchanged = 4,
eOrientationSwapMask = 0x01
};
enum {
eSurfaceChanged = 0x01,
eLayerStackChanged = 0x02,
eDisplayProjectionChanged = 0x04,
eDisplaySizeChanged = 0x08
};
DisplayState();
void merge(const DisplayState& other);
uint32_t what;
sp<IBinder> token;
sp<IGraphicBufferProducer> surface;
uint32_t layerStack;
uint32_t orientation;
Rect viewport;
Rect frame;
uint32_t width, height;
status_t write(Parcel& output) const;
status_t read(const Parcel& input);
};
static inline
int compare_type(const ComposerState& lhs, const ComposerState& rhs) {
if (lhs.client < rhs.client) return -1;
if (lhs.client > rhs.client) return 1;
if (lhs.state.surface < rhs.state.surface) return -1;
if (lhs.state.surface > rhs.state.surface) return 1;
return 0;
}
static inline
int compare_type(const DisplayState& lhs, const DisplayState& rhs) {
return compare_type(lhs.token, rhs.token);
}
}; // namespace android
#endif // ANDROID_SF_LAYER_STATE_H