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/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012, The Linux Foundation. All rights reserved.
*
* Not a Contribution, Apache license notifications and license are
* retained for attribution purposes only.
*
* 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_FBUPDATE_H
#define HWC_FBUPDATE_H
#include "hwc_utils.h"
#include "overlay.h"
#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
namespace overlay {
class Rotator;
}
namespace qhwc {
namespace ovutils = overlay::utils;
//Framebuffer update Interface
class IFBUpdate {
public:
explicit IFBUpdate(hwc_context_t *ctx, const int& dpy);
virtual ~IFBUpdate() {};
// Sets up members and prepares overlay if conditions are met
virtual bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list,
hwc_rect_t fbUpdatingRect, int fbZorder) = 0;
virtual bool prepareAndValidate(hwc_context_t *ctx,
hwc_display_contents_1 *list, int fbZorder);
// Draws layer
virtual bool draw(hwc_context_t *ctx, private_handle_t *hnd) = 0;
//Reset values
virtual void reset();
//Factory method that returns a low-res or high-res version
static IFBUpdate *getObject(hwc_context_t *ctx, const int& dpy);
protected:
const int mDpy; // display to update
bool mModeOn; // if prepare happened
overlay::Rotator *mRot;
int mAlignedFBWidth;
int mAlignedFBHeight;
int mTileEnabled;
};
//Non-Split panel handler.
class FBUpdateNonSplit : public IFBUpdate {
public:
explicit FBUpdateNonSplit(hwc_context_t *ctx, const int& dpy);
virtual ~FBUpdateNonSplit() {};
bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list,
hwc_rect_t fbUpdatingRect, int fbZorder);
bool draw(hwc_context_t *ctx, private_handle_t *hnd);
void reset();
private:
bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list,
hwc_rect_t fbUpdatingRect, int fbZorder);
bool preRotateExtDisplay(hwc_context_t *ctx,
hwc_layer_1_t *layer,
ovutils::Whf &info,
hwc_rect_t& sourceCrop,
ovutils::eMdpFlags& mdpFlags,
int& rotFlags);
ovutils::eDest mDest; //pipe to draw on
};
//Split panel handler.
class FBUpdateSplit : public IFBUpdate {
public:
explicit FBUpdateSplit(hwc_context_t *ctx, const int& dpy);
virtual ~FBUpdateSplit() {};
bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list,
hwc_rect_t fbUpdatingRect, int fbZorder);
bool draw(hwc_context_t *ctx, private_handle_t *hnd);
void reset();
protected:
virtual bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list,
hwc_rect_t fbUpdatingRect, int fbZorder);
ovutils::eDest mDestLeft; //left pipe to draw on
ovutils::eDest mDestRight; //right pipe to draw on
};
//Source Split Handler
class FBSrcSplit : public FBUpdateSplit {
public:
explicit FBSrcSplit(hwc_context_t *ctx, const int& dpy);
virtual ~FBSrcSplit() {};
private:
bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list,
hwc_rect_t fbUpdatingRect, int fbZorder);
};
}; //namespace qhwc
#endif //HWC_FBUPDATE_H
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