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107 lines
4.6 KiB
107 lines
4.6 KiB
/*
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* Copyright (c) 2016-2017, 2019-2020 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __HWC_CALLBACKS_H__
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#define __HWC_CALLBACKS_H__
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#define HWC2_INCLUDE_STRINGIFICATION
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#define HWC2_USE_CPP11
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#include <utils/locker.h>
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#include <hardware/hwcomposer2.h>
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#undef HWC2_INCLUDE_STRINGIFICATION
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#undef HWC2_USE_CPP11
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namespace sdm {
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class HWCCallbacks {
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public:
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static const int kNumBuiltIn = 4;
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static const int kNumPluggable = 4;
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static const int kNumVirtual = 4;
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// Add 1 primary display which can be either a builtin or pluggable.
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// Async powermode update requires dummy hwc displays.
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// Limit dummy displays to builtin/pluggable type for now.
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static const int kNumRealDisplays = 1 + kNumBuiltIn + kNumPluggable + kNumVirtual;
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static const int kNumDisplays = 1 + kNumBuiltIn + kNumPluggable + kNumVirtual +
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1 + kNumBuiltIn + kNumPluggable;
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HWC2::Error Hotplug(hwc2_display_t display, HWC2::Connection state);
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HWC2::Error Refresh(hwc2_display_t display);
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HWC2::Error Vsync(hwc2_display_t display, int64_t timestamp);
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HWC2::Error Vsync_2_4(hwc2_display_t display, int64_t timestamp, uint32_t period);
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HWC2::Error VsyncPeriodTimingChanged(hwc2_display_t display,
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hwc_vsync_period_change_timeline_t *updated_timeline);
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HWC2::Error SeamlessPossible(hwc2_display_t display);
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HWC2::Error Register(HWC2::Callback, hwc2_callback_data_t callback_data,
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hwc2_function_pointer_t pointer);
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void UpdateVsyncSource(hwc2_display_t from) {
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vsync_source_ = from;
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}
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hwc2_display_t GetVsyncSource() { return vsync_source_; }
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bool VsyncCallbackRegistered() { return (vsync_ != nullptr && vsync_data_ != nullptr); }
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bool Vsync_2_4CallbackRegistered() { return (vsync_2_4_ != nullptr); }
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bool NeedsRefresh(hwc2_display_t display) { return pending_refresh_.test(UINT32(display)); }
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void ResetRefresh(hwc2_display_t display) { pending_refresh_.reset(UINT32(display)); }
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bool IsClientConnected() {
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SCOPE_LOCK(hotplug_lock_);
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return client_connected_;
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}
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private:
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hwc2_callback_data_t hotplug_data_ = nullptr;
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hwc2_callback_data_t refresh_data_ = nullptr;
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hwc2_callback_data_t vsync_data_ = nullptr;
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hwc2_callback_data_t vsync_2_4_data_ = nullptr;
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hwc2_callback_data_t vsync_period_timing_changed_data_ = nullptr;
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hwc2_callback_data_t seamless_possible_data_ = nullptr;
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HWC2_PFN_HOTPLUG hotplug_ = nullptr;
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HWC2_PFN_REFRESH refresh_ = nullptr;
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HWC2_PFN_VSYNC vsync_ = nullptr;
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HWC2_PFN_VSYNC_2_4 vsync_2_4_ = nullptr;
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HWC2_PFN_VSYNC_PERIOD_TIMING_CHANGED vsync_period_timing_changed_ = nullptr;
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HWC2_PFN_SEAMLESS_POSSIBLE seamless_possible_ = nullptr;
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hwc2_display_t vsync_source_ = HWC_DISPLAY_PRIMARY; // hw vsync is active on this display
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std::bitset<kNumDisplays> pending_refresh_; // Displays waiting to get refreshed
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Locker hotplug_lock_;
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Locker refresh_lock_;
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Locker vsync_lock_;
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Locker vsync_2_4_lock_;
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Locker vsync_period_timing_changed_lock_;
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Locker seamless_possible_lock_;
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bool client_connected_ = false;
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};
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} // namespace sdm
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#endif // __HWC_CALLBACKS_H__
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