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/*
// Copyright (c) 2014 Intel Corporation
//
// 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 HWC_LAYER_H
#define HWC_LAYER_H
#include <hardware/hwcomposer.h>
#include <DisplayPlane.h>
namespace android {
namespace intel {
class HwcLayer {
public:
enum {
// LAYER_FB layers are marked as HWC_FRAMEBUFFER.
// And a LAYER_FB can become HWC_OVERLAY layers during
// revisiting layer list.
LAYER_FB = 0,
// LAYER_FORCE_FB layers are marked as HWC_FRAMEBUFFER.
// And a LAYER_FORCE_FB can never become HWC_OVERLAY layers during
// revisiting layer list.
LAYER_FORCE_FB,
// LAYER_OVERLAY layers are marked as HWC_OVERLAY
LAYER_OVERLAY,
// LAYER_SKIPPED layers are marked as HWC_OVERLAY with no plane attached
LAYER_SKIPPED,
// LAYER_FRAMEBUFFER_TARGET layers are marked as HWC_FRAMEBUFFER_TARGET
LAYER_FRAMEBUFFER_TARGET,
// LAYER_SIDEBAND layers have alternate path bypassing HWC after setup
LAYER_SIDEBAND,
// LAYER_CURSOR_OVERLAY layers support hardware cursor planes
LAYER_CURSOR_OVERLAY,
};
enum {
LAYER_PRIORITY_OVERLAY = 0x60000000UL,
LAYER_PRIORITY_PROTECTED = 0x70000000UL,
LAYER_PRIORITY_SIZE_OFFSET = 4,
};
public:
HwcLayer(int index, hwc_layer_1_t *layer);
virtual ~HwcLayer();
// plane operations
bool attachPlane(DisplayPlane *plane, int device);
DisplayPlane* detachPlane();
void setType(uint32_t type);
uint32_t getType() const;
int32_t getCompositionType() const;
void setCompositionType(int32_t type);
int getIndex() const;
int getZOrder() const;
uint32_t getFormat() const;
uint32_t getBufferWidth() const;
uint32_t getBufferHeight() const;
const stride_t& getBufferStride() const;
uint32_t getUsage() const;
uint32_t getHandle() const;
uint32_t getTransform() const;
bool isProtected() const;
hwc_layer_1_t* getLayer() const;
DisplayPlane* getPlane() const;
void setPriority(uint32_t priority);
uint32_t getPriority() const;
bool update(hwc_layer_1_t *layer);
void postFlip();
bool isUpdated();
public:
// temporary solution for plane assignment
bool mPlaneCandidate;
private:
void setupAttributes();
private:
const int mIndex;
int mZOrder;
int mDevice;
hwc_layer_1_t *mLayer;
DisplayPlane *mPlane;
uint32_t mFormat;
uint32_t mWidth;
uint32_t mHeight;
stride_t mStride;
uint32_t mUsage;
uint32_t mHandle;
bool mIsProtected;
uint32_t mType;
uint32_t mPriority;
uint32_t mTransform;
// for smart composition
hwc_frect_t mSourceCropf;
hwc_rect_t mDisplayFrame;
bool mUpdated;
};
} // namespace intel
} // namespace android
#endif /* HWC_LAYER_H */
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