composer/hwc_display_dummy.cpp

/*
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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(shared_ptr<Fence> *out_retire_fence) {
  for (auto hwc_layer : layer_set_) {
    hwc_layer->SetReleaseFence(nullptr);
  }
  return HWC2::Error::None;
}

HWC2::Error HWCDisplayDummy::SetColorMode(ColorMode mode) {
  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;
}

HWC2::Error HWCDisplayDummy::SetVsyncEnabled(HWC2::Vsync enabled) {
  bool state = false;
  if (enabled == HWC2::Vsync::Enable) {
    state = true;
  }
  vsync_enable_ = state;
  return HWC2::Error::None;
}

bool HWCDisplayDummy::VsyncEnablePending() {
  return vsync_enable_;
}

HWC2::Error HWCDisplayDummy::SetClientTarget(buffer_handle_t target,
                                             shared_ptr<Fence> acquire_fence,
                                             int32_t dataspace, hwc_region_t damage) {
  client_target_handle_ = target;
  client_acquire_fence_ = acquire_fence;
  client_dataspace_     = dataspace;
  client_damage_region_ = damage;
  return HWC2::Error::None;
}

void HWCDisplayDummy::SetConfigInfo(
                      std::map<uint32_t, DisplayConfigVariableInfo>& variable_config_map,
                      int active_config_index, uint32_t num_configs) {
  variable_config_map_ = variable_config_map;
  active_config_index_ = active_config_index;
  num_configs_ = num_configs;
}

HWC2::Error HWCDisplayDummy::SetActiveConfigWithConstraints(
    hwc2_config_t config, const VsyncPeriodChangeConstraints *vsync_period_change_constraints,
    VsyncPeriodChangeTimeline *out_timeline) {

  ALOGI("Config change not allowed in async power mode transition");
  return HWC2::Error::Unsupported;
}

}  // namespace sdm