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85 lines
3.0 KiB
85 lines
3.0 KiB
/*
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* Copyright (C) 2010 The Android Open Source Project
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* Copyright (C) 2012, The Linux Foundation. All rights reserved.
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*
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* Not a Contribution, Apache license notifications and license are
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* retained for attribution purposes only.
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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 HWC_FBUPDATE_H
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#define HWC_FBUPDATE_H
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#include "hwc_utils.h"
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#include "overlay.h"
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#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
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#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
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namespace qhwc {
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namespace ovutils = overlay::utils;
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//Framebuffer update Interface
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class IFBUpdate {
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public:
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explicit IFBUpdate(const int& dpy) : mDpy(dpy) {}
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virtual ~IFBUpdate() {};
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// Sets up members and prepares overlay if conditions are met
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virtual bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list,
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int fbZorder) = 0;
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// Draws layer
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virtual bool draw(hwc_context_t *ctx, private_handle_t *hnd) = 0;
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//Reset values
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virtual void reset();
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//Factory method that returns a low-res or high-res version
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static IFBUpdate *getObject(const int& width, const int& dpy);
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protected:
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const int mDpy; // display to update
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bool mModeOn; // if prepare happened
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};
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//Low resolution (<= 2048) panel handler.
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class FBUpdateLowRes : public IFBUpdate {
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public:
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explicit FBUpdateLowRes(const int& dpy);
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virtual ~FBUpdateLowRes() {};
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bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list,
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int fbZorder);
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bool draw(hwc_context_t *ctx, private_handle_t *hnd);
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void reset();
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private:
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bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list,
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int fbZorder);
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ovutils::eDest mDest; //pipe to draw on
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};
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//High resolution (> 2048) panel handler.
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class FBUpdateHighRes : public IFBUpdate {
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public:
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explicit FBUpdateHighRes(const int& dpy);
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virtual ~FBUpdateHighRes() {};
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bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list,
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int fbZorder);
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bool draw(hwc_context_t *ctx, private_handle_t *hnd);
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void reset();
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private:
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bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list,
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int fbZorder);
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ovutils::eDest mDestLeft; //left pipe to draw on
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ovutils::eDest mDestRight; //right pipe to draw on
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};
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}; //namespace qhwc
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#endif //HWC_FBUPDATE_H
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