composer/hwc_display_dummy.cpp

/*
* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
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*       from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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#include "hwc_display_dummy.h"
#include <utils/debug.h>

#define __CLASS__ "HWCDisplayDummy"

namespace sdm {

int HWCDisplayDummy::Create(CoreInterface *core_intf, BufferAllocator *buffer_allocator,
                            HWCCallbacks *callbacks, HWCDisplayEventHandler *event_handler,
                            qService::QService *qservice, hwc2_display_t id, int32_t sdm_id,
                            HWCDisplay **hwc_display) {
  HWCDisplay *hwc_display_dummy = new HWCDisplayDummy(core_intf, buffer_allocator, callbacks,
                                      event_handler, qservice, id, sdm_id);
  *hwc_display = hwc_display_dummy;
  return kErrorNone;
}

void HWCDisplayDummy::Destroy(HWCDisplay *hwc_display) {
  delete hwc_display;
}

HWC2::Error HWCDisplayDummy::Validate(uint32_t *out_num_types, uint32_t *out_num_requests) {
  return HWC2::Error::None;
}

HWC2::Error HWCDisplayDummy::Present(int32_t *out_retire_fence) {
  for (auto hwc_layer : layer_set_) {
    hwc_layer->PushBackReleaseFence(-1);
  }
  return HWC2::Error::None;
}

HWCDisplayDummy::HWCDisplayDummy(CoreInterface *core_intf, BufferAllocator *buffer_allocator,
                                 HWCCallbacks *callbacks, HWCDisplayEventHandler *event_handler,
                                 qService::QService *qservice, hwc2_display_t id,
                                 int32_t sdm_id) :HWCDisplay(core_intf, buffer_allocator,
                                 callbacks, event_handler, qservice, kBuiltIn, id, sdm_id,
                                 DISPLAY_CLASS_BUILTIN) {
  DisplayConfigVariableInfo config;
  config.x_pixels = 720;
  config.y_pixels = 1280;
  config.x_dpi = 200.0f;
  config.y_dpi = 200.0f;
  config.fps = 60;
  config.vsync_period_ns = 16600000;
  display_null_.SetFrameBufferConfig(config);
  num_configs_ = 1;
  display_intf_ = &display_null_;
}

HWC2::Error HWCDisplayDummy::GetActiveConfig(hwc2_config_t *out_config) {
  *out_config = 0;
  return HWC2::Error::None;
}

HWC2::Error HWCDisplayDummy::UpdatePowerMode(HWC2::PowerMode mode) {
  current_power_mode_ = mode;
  return HWC2::Error::None;
}

}  // namespace sdm