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