msm8996/sdm/libs/core/display_base.cpp

/*
* Copyright (c) 2014 - 2016, 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.
*/

#include <stdio.h>
#include <utils/constants.h>
#include <utils/debug.h>
#include <utils/formats.h>
#include <utils/rect.h>
#include <string>
#include <vector>
#include <algorithm>

#include "display_base.h"
#include "hw_info_interface.h"

#define __CLASS__ "DisplayBase"

namespace sdm {

// TODO(user): Have a single structure handle carries all the interface pointers and variables.
DisplayBase::DisplayBase(DisplayType display_type, DisplayEventHandler *event_handler,
                         HWDeviceType hw_device_type, BufferSyncHandler *buffer_sync_handler,
                         CompManager *comp_manager, RotatorInterface *rotator_intf,
                         HWInfoInterface *hw_info_intf)
  : display_type_(display_type), event_handler_(event_handler), hw_device_type_(hw_device_type),
    buffer_sync_handler_(buffer_sync_handler), comp_manager_(comp_manager),
    rotator_intf_(rotator_intf), hw_info_intf_(hw_info_intf) {
}

DisplayError DisplayBase::Init() {
  DisplayError error = kErrorNone;
  hw_panel_info_ = HWPanelInfo();
  hw_intf_->GetHWPanelInfo(&hw_panel_info_);

  uint32_t active_index = 0;
  hw_intf_->GetActiveConfig(&active_index);
  hw_intf_->GetDisplayAttributes(active_index, &display_attributes_);
  fb_config_ = display_attributes_;

  error = hw_intf_->GetMixerAttributes(&mixer_attributes_);
  if (error != kErrorNone) {
    return error;
  }

  // Override x_pixels and y_pixels of frame buffer with mixer width and height
  fb_config_.x_pixels = mixer_attributes_.width;
  fb_config_.y_pixels = mixer_attributes_.height;

  HWScaleLutInfo lut_info = {};
  error = comp_manager_->GetScaleLutConfig(&lut_info);
  if (error == kErrorNone) {
    error = hw_intf_->SetScaleLutConfig(&lut_info);
  }

  if (error != kErrorNone) {
    goto CleanupOnError;
  }

  error = comp_manager_->RegisterDisplay(display_type_, display_attributes_, hw_panel_info_,
                                         mixer_attributes_, fb_config_, &display_comp_ctx_);
  if (error != kErrorNone) {
    goto CleanupOnError;
  }

  if (rotator_intf_) {
    error = rotator_intf_->RegisterDisplay(display_type_, &display_rotator_ctx_);
    if (error != kErrorNone) {
      goto CleanupOnError;
    }
  }

  if (hw_info_intf_) {
    HWResourceInfo hw_resource_info = HWResourceInfo();
    hw_info_intf_->GetHWResourceInfo(&hw_resource_info);
    auto max_mixer_stages = hw_resource_info.num_blending_stages;
    int property_value = Debug::GetMaxPipesPerMixer(display_type_);
    if (property_value >= 0) {
      max_mixer_stages = std::min(UINT32(property_value), hw_resource_info.num_blending_stages);
    }
    DisplayBase::SetMaxMixerStages(max_mixer_stages);
  }

  color_mgr_ = ColorManagerProxy::CreateColorManagerProxy(display_type_, hw_intf_,
                               display_attributes_, hw_panel_info_);
  if (!color_mgr_) {
    DLOGW("Unable to create ColorManagerProxy for display = %d", display_type_);
  }

  return kErrorNone;

CleanupOnError:
  if (display_comp_ctx_) {
    comp_manager_->UnregisterDisplay(display_comp_ctx_);
  }

  return error;
}

DisplayError DisplayBase::Deinit() {
  if (rotator_intf_) {
    rotator_intf_->UnregisterDisplay(display_rotator_ctx_);
  }

  if (color_modes_) {
    delete[] color_modes_;
  }

  if (color_mgr_) {
    delete color_mgr_;
    color_mgr_ = NULL;
  }

  comp_manager_->UnregisterDisplay(display_comp_ctx_);

  HWEventsInterface::Destroy(hw_events_intf_);

  return kErrorNone;
}

DisplayError DisplayBase::ValidateGPUTarget(LayerStack *layer_stack) {
  uint32_t i = 0;
  std::vector<Layer *>layers = layer_stack->layers;

  // TODO(user): Remove this check once we have query display attributes on virtual display
  if (display_type_ == kVirtual) {
    return kErrorNone;
  }
  uint32_t layer_count = UINT32(layers.size());
  while ((i < layer_count) && (layers.at(i)->composition != kCompositionGPUTarget)) {
    i++;
  }

  if (i >= layer_count) {
    DLOGE("Either layer count is zero or GPU target layer is not present");
    return kErrorParameters;
  }

  uint32_t gpu_target_index = i;

  // Check GPU target layer
  Layer *gpu_target_layer = layers.at(gpu_target_index);

  if (!IsValid(gpu_target_layer->src_rect)) {
    DLOGE("Invalid src rect for GPU target layer");
    return kErrorParameters;
  }

  if (!IsValid(gpu_target_layer->dst_rect)) {
    DLOGE("Invalid dst rect for GPU target layer");
    return kErrorParameters;
  }

  float layer_mixer_width = FLOAT(mixer_attributes_.width);
  float layer_mixer_height = FLOAT(mixer_attributes_.height);
  float fb_width = FLOAT(fb_config_.x_pixels);
  float fb_height = FLOAT(fb_config_.y_pixels);
  LayerRect src_domain = (LayerRect){0.0f, 0.0f, fb_width, fb_height};
  LayerRect dst_domain = (LayerRect){0.0f, 0.0f, layer_mixer_width, layer_mixer_height};
  LayerRect out_rect = gpu_target_layer->dst_rect;

  ScaleRect(src_domain, dst_domain, gpu_target_layer->dst_rect, &out_rect);

  auto gpu_target_layer_dst_xpixels = out_rect.right - out_rect.left;
  auto gpu_target_layer_dst_ypixels = out_rect.bottom - out_rect.top;

  if (gpu_target_layer_dst_xpixels > mixer_attributes_.width ||
    gpu_target_layer_dst_ypixels > mixer_attributes_.height) {
    DLOGE("GPU target layer dst rect is not with in limits gpu wxh %fx%f mixer wxh %dx%d",
    gpu_target_layer_dst_xpixels, gpu_target_layer_dst_ypixels, mixer_attributes_.width,
    mixer_attributes_.height);
    return kErrorParameters;
  }

  return kErrorNone;
}

DisplayError DisplayBase::Prepare(LayerStack *layer_stack) {
  SCOPE_LOCK(locker_);

  if (!active_) {
    return kErrorPermission;
  }

  if (!layer_stack) {
    return kErrorParameters;
  }

  return PrepareLocked(layer_stack);
}

DisplayError DisplayBase::PrepareLocked(LayerStack *layer_stack) {
  DisplayError error = kErrorNone;

  error = ValidateGPUTarget(layer_stack);
  if (error != kErrorNone) {
    return error;
  }

  if (color_mgr_ && color_mgr_->NeedsPartialUpdateDisable()) {
    DisablePartialUpdateOneFrameLocked();
  }

  if (partial_update_control_ == false || disable_pu_one_frame_) {
    comp_manager_->ControlPartialUpdate(display_comp_ctx_, false /* enable */);
    disable_pu_one_frame_ = false;
  }

  // Clean hw layers for reuse.
  hw_layers_ = HWLayers();
  hw_layers_.info.stack = layer_stack;
  hw_layers_.output_compression = 1.0f;

  comp_manager_->PrePrepare(display_comp_ctx_, &hw_layers_);
  while (true) {
    error = comp_manager_->Prepare(display_comp_ctx_, &hw_layers_);
    if (error != kErrorNone) {
      break;
    }

    if (IsRotationRequired(&hw_layers_)) {
      if (!rotator_intf_) {
        continue;
      }
      error = rotator_intf_->Prepare(display_rotator_ctx_, &hw_layers_);
    } else {
      // Release all the previous rotator sessions.
      if (rotator_intf_) {
        error = rotator_intf_->Purge(display_rotator_ctx_);
      }
    }

    if (error == kErrorNone) {
      error = hw_intf_->Validate(&hw_layers_);
      if (error == kErrorNone) {
        // Strategy is successful now, wait for Commit().
        pending_commit_ = true;
        break;
      }
      if (error == kErrorShutDown) {
        comp_manager_->PostPrepare(display_comp_ctx_, &hw_layers_);
        return error;
      }
    }
  }

  comp_manager_->PostPrepare(display_comp_ctx_, &hw_layers_);

  return error;
}

DisplayError DisplayBase::Commit(LayerStack *layer_stack) {
  SCOPE_LOCK(locker_);

  if (!active_) {
    pending_commit_ = false;
    return kErrorPermission;
  }

  if (!layer_stack) {
    return kErrorParameters;
  }

  if (!pending_commit_) {
    DLOGE("Commit: Corresponding Prepare() is not called for display = %d", display_type_);
    return kErrorUndefined;
  }

  pending_commit_ = false;

  return CommitLocked(layer_stack);
}

DisplayError DisplayBase::CommitLocked(LayerStack *layer_stack) {
  DisplayError error = kErrorNone;

  // Layer stack attributes has changed, need to Reconfigure, currently in use for Hybrid Comp
  if (layer_stack->flags.attributes_changed) {
    error = comp_manager_->ReConfigure(display_comp_ctx_, &hw_layers_);
    if (error != kErrorNone) {
      return error;
    }

    error = hw_intf_->Validate(&hw_layers_);
    if (error != kErrorNone) {
        return error;
    }
  }

  if (rotator_intf_ && IsRotationRequired(&hw_layers_)) {
    error = rotator_intf_->Commit(display_rotator_ctx_, &hw_layers_);
    if (error != kErrorNone) {
      return error;
    }
  }

  // check if feature list cache is dirty and pending.
  // If dirty, need program to hardware blocks.
  if (color_mgr_)
    error = color_mgr_->Commit();
  if (error != kErrorNone) {  // won't affect this execution path.
    DLOGW("ColorManager::Commit(...) isn't working");
  }

  error = hw_intf_->Commit(&hw_layers_);
  if (error != kErrorNone) {
    return error;
  }

  if (rotator_intf_ && IsRotationRequired(&hw_layers_)) {
    error = rotator_intf_->PostCommit(display_rotator_ctx_, &hw_layers_);
    if (error != kErrorNone) {
      return error;
    }
  }

  if (partial_update_control_) {
    comp_manager_->ControlPartialUpdate(display_comp_ctx_, true /* enable */);
  }

  error = comp_manager_->PostCommit(display_comp_ctx_, &hw_layers_);
  if (error != kErrorNone) {
    return error;
  }

  return kErrorNone;
}

DisplayError DisplayBase::Flush() {
  DisplayError error = kErrorNone;

  if (!active_) {
    return kErrorPermission;
  }

  hw_layers_.info.count = 0;
  error = hw_intf_->Flush();
  if (error == kErrorNone) {
    // Release all the rotator sessions.
    if (rotator_intf_) {
      error = rotator_intf_->Purge(display_rotator_ctx_);
      if (error != kErrorNone) {
        DLOGE("Rotator purge failed for display %d", display_type_);
        return error;
      }
    }

    comp_manager_->Purge(display_comp_ctx_);

    pending_commit_ = false;
  } else {
    DLOGW("Unable to flush display = %d", display_type_);
  }

  return error;
}

DisplayError DisplayBase::GetDisplayState(DisplayState *state) {
  if (!state) {
    return kErrorParameters;
  }

  *state = state_;
  return kErrorNone;
}

DisplayError DisplayBase::GetNumVariableInfoConfigs(uint32_t *count) {
  return hw_intf_->GetNumDisplayAttributes(count);
}

DisplayError DisplayBase::GetConfig(uint32_t index, DisplayConfigVariableInfo *variable_info) {
  HWDisplayAttributes attrib;
  if (hw_intf_->GetDisplayAttributes(index, &attrib) == kErrorNone) {
    *variable_info = attrib;
    return kErrorNone;
  }

  return kErrorNotSupported;
}

DisplayError DisplayBase::GetActiveConfig(uint32_t *index) {
  return hw_intf_->GetActiveConfig(index);
}

DisplayError DisplayBase::GetVSyncState(bool *enabled) {
  if (!enabled) {
    return kErrorParameters;
  }

  *enabled = vsync_enable_;

  return kErrorNone;
}

bool DisplayBase::IsUnderscanSupported() {
  return underscan_supported_;
}

DisplayError DisplayBase::SetDisplayState(DisplayState state) {
  DisplayError error = kErrorNone;
  bool active = false;

  DLOGI("Set state = %d, display %d", state, display_type_);

  if (state == state_) {
    DLOGI("Same state transition is requested.");
    return kErrorNone;
  }

  switch (state) {
  case kStateOff:
    hw_layers_.info.count = 0;
    error = hw_intf_->Flush();
    if (error == kErrorNone) {
      // Release all the rotator sessions.
      if (rotator_intf_) {
        error = rotator_intf_->Purge(display_rotator_ctx_);
        if (error != kErrorNone) {
          DLOGE("Rotator purge failed for display %d", display_type_);
          return error;
        }
      }

      comp_manager_->Purge(display_comp_ctx_);

      error = hw_intf_->PowerOff();
    }
    break;

  case kStateOn:
    error = hw_intf_->PowerOn();
    active = true;
    break;

  case kStateDoze:
    error = hw_intf_->Doze();
    active = true;
    break;

  case kStateDozeSuspend:
    error = hw_intf_->DozeSuspend();
    break;

  case kStateStandby:
    error = hw_intf_->Standby();
    break;

  default:
    DLOGE("Spurious state = %d transition requested.", state);
    break;
  }

  if (error == kErrorNone) {
    active_ = active;
    state_ = state;
  }

  return error;
}

DisplayError DisplayBase::SetActiveConfig(uint32_t index) {
  SCOPE_LOCK(locker_);
  return SetActiveConfigLocked(index);
}

DisplayError DisplayBase::SetActiveConfigLocked(uint32_t index) {
  DisplayError error = kErrorNone;
  uint32_t active_index = 0;

  hw_intf_->GetActiveConfig(&active_index);

  if (active_index == index) {
    return kErrorNone;
  }

  error = hw_intf_->SetDisplayAttributes(index);
  if (error != kErrorNone) {
    return error;
  }

  return ReconfigureDisplay();
}

DisplayError DisplayBase::SetActiveConfig(DisplayConfigVariableInfo *variable_info) {
  SCOPE_LOCK(locker_);
  return SetActiveConfigLocked(variable_info);
}

DisplayError DisplayBase::SetMaxMixerStages(uint32_t max_mixer_stages) {
  DisplayError error = kErrorNone;

  error = comp_manager_->SetMaxMixerStages(display_comp_ctx_, max_mixer_stages);

  if (error == kErrorNone) {
    max_mixer_stages_ = max_mixer_stages;
  }

  return error;
}

DisplayError DisplayBase::ControlPartialUpdate(bool enable, uint32_t *pending) {
  SCOPE_LOCK(locker_);
  return ControlPartialUpdateLocked(enable, pending);
}

DisplayError DisplayBase::DisablePartialUpdateOneFrame() {
  SCOPE_LOCK(locker_);
  return DisablePartialUpdateOneFrameLocked();
}

DisplayError DisplayBase::SetDisplayMode(uint32_t mode) {
  return kErrorNotSupported;
}

DisplayError DisplayBase::SetPanelBrightness(int level) {
  return kErrorNotSupported;
}

DisplayError DisplayBase::OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level) {
  return kErrorNotSupported;
}

void DisplayBase::AppendDump(char *buffer, uint32_t length) {
  HWDisplayAttributes attrib;
  uint32_t active_index = 0;
  uint32_t num_modes = 0;
  hw_intf_->GetNumDisplayAttributes(&num_modes);
  hw_intf_->GetActiveConfig(&active_index);
  hw_intf_->GetDisplayAttributes(active_index, &attrib);

  DumpImpl::AppendString(buffer, length, "\n-----------------------");
  DumpImpl::AppendString(buffer, length, "\ndevice type: %u", display_type_);
  DumpImpl::AppendString(buffer, length, "\nstate: %u, vsync on: %u, max. mixer stages: %u",
                         state_, INT(vsync_enable_), max_mixer_stages_);
  DumpImpl::AppendString(buffer, length, "\nnum configs: %u, active config index: %u",
                         num_modes, active_index);

  DisplayConfigVariableInfo &info = attrib;

  uint32_t num_hw_layers = 0;
  if (hw_layers_.info.stack) {
    num_hw_layers = hw_layers_.info.count;
  }

  if (num_hw_layers == 0) {
    DumpImpl::AppendString(buffer, length, "\nNo hardware layers programmed");
    return;
  }

  LayerBuffer *out_buffer = hw_layers_.info.stack->output_buffer;
  if (out_buffer) {
    DumpImpl::AppendString(buffer, length, "\nres:%u x %u format: %s", out_buffer->width,
                           out_buffer->height, GetFormatString(out_buffer->format));
  } else {
    DumpImpl::AppendString(buffer, length, "\nres:%u x %u, dpi:%.2f x %.2f, fps:%u,"
                           "vsync period: %u", info.x_pixels, info.y_pixels, info.x_dpi,
                           info.y_dpi, info.fps, info.vsync_period_ns);
  }

  DumpImpl::AppendString(buffer, length, "\n");

  HWLayersInfo &layer_info = hw_layers_.info;
  LayerRect &l_roi = layer_info.left_partial_update;
  LayerRect &r_roi = layer_info.right_partial_update;
  DumpImpl::AppendString(buffer, length, "\nROI(L T R B) : LEFT(%d %d %d %d)", INT(l_roi.left),
                         INT(l_roi.top), INT(l_roi.right), INT(l_roi.bottom));

  if (IsValid(r_roi)) {
    DumpImpl::AppendString(buffer, length, ", RIGHT(%d %d %d %d)", INT(r_roi.left),
                           INT(r_roi.top), INT(r_roi.right), INT(r_roi.bottom));
  }

  const char *header  = "\n| Idx |  Comp Type  |  Split | WB |  Pipe |    W x H    |          Format          |  Src Rect (L T R B) |  Dst Rect (L T R B) |  Z |    Flags   | Deci(HxV) | CS |";  //NOLINT
  const char *newline = "\n|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|";  //NOLINT
  const char *format  = "\n| %3s | %11s "     "| %6s " "| %2s | 0x%03x | %4d x %4d | %24s "                  "| %4d %4d %4d %4d "  "| %4d %4d %4d %4d "  "| %2s | %10s "   "| %9s | %2s |";  //NOLINT

  DumpImpl::AppendString(buffer, length, "\n");
  DumpImpl::AppendString(buffer, length, newline);
  DumpImpl::AppendString(buffer, length, header);
  DumpImpl::AppendString(buffer, length, newline);

  for (uint32_t i = 0; i < num_hw_layers; i++) {
    uint32_t layer_index = hw_layers_.info.index[i];
    Layer *layer = hw_layers_.info.stack->layers.at(layer_index);
    LayerBuffer *input_buffer = layer->input_buffer;
    HWLayerConfig &layer_config = hw_layers_.config[i];
    HWRotatorSession &hw_rotator_session = layer_config.hw_rotator_session;

    char idx[8] = { 0 };
    const char *comp_type = GetName(layer->composition);
    const char *buffer_format = GetFormatString(input_buffer->format);
    const char *rotate_split[2] = { "Rot-1", "Rot-2" };
    const char *comp_split[2] = { "Comp-1", "Comp-2" };

    snprintf(idx, sizeof(idx), "%d", layer_index);

    for (uint32_t count = 0; count < hw_rotator_session.hw_block_count; count++) {
      char writeback_id[8] = { 0 };
      HWRotateInfo &rotate = hw_rotator_session.hw_rotate_info[count];
      LayerRect &src_roi = rotate.src_roi;
      LayerRect &dst_roi = rotate.dst_roi;

      snprintf(writeback_id, sizeof(writeback_id), "%d", rotate.writeback_id);

      DumpImpl::AppendString(buffer, length, format, idx, comp_type, rotate_split[count],
                             writeback_id, rotate.pipe_id, input_buffer->width,
                             input_buffer->height, buffer_format, INT(src_roi.left),
                             INT(src_roi.top), INT(src_roi.right), INT(src_roi.bottom),
                             INT(dst_roi.left), INT(dst_roi.top), INT(dst_roi.right),
                             INT(dst_roi.bottom), "-", "-    ", "-    ", "-");

      // print the below only once per layer block, fill with spaces for rest.
      idx[0] = 0;
      comp_type = "";
    }

    if (hw_rotator_session.hw_block_count > 0) {
      input_buffer = &hw_rotator_session.output_buffer;
      buffer_format = GetFormatString(input_buffer->format);
    }

    for (uint32_t count = 0; count < 2; count++) {
      char decimation[16] = { 0 };
      char flags[16] = { 0 };
      char z_order[8] = { 0 };
      char csc[8] = { 0 };

      HWPipeInfo &pipe = (count == 0) ? layer_config.left_pipe : layer_config.right_pipe;

      if (!pipe.valid) {
        continue;
      }

      LayerRect &src_roi = pipe.src_roi;
      LayerRect &dst_roi = pipe.dst_roi;

      snprintf(z_order, sizeof(z_order), "%d", pipe.z_order);
      snprintf(flags, sizeof(flags), "0x%08x", layer->flags.flags);
      snprintf(decimation, sizeof(decimation), "%3d x %3d", pipe.horizontal_decimation,
               pipe.vertical_decimation);
      snprintf(csc, sizeof(csc), "%d", layer->input_buffer->csc);

      DumpImpl::AppendString(buffer, length, format, idx, comp_type, comp_split[count],
                             "-", pipe.pipe_id, input_buffer->width, input_buffer->height,
                             buffer_format, INT(src_roi.left), INT(src_roi.top),
                             INT(src_roi.right), INT(src_roi.bottom), INT(dst_roi.left),
                             INT(dst_roi.top), INT(dst_roi.right), INT(dst_roi.bottom),
                             z_order, flags, decimation, csc);

      // print the below only once per layer block, fill with spaces for rest.
      idx[0] = 0;
      comp_type = "";
    }

    DumpImpl::AppendString(buffer, length, newline);
  }
}

bool DisplayBase::IsRotationRequired(HWLayers *hw_layers) {
  HWLayersInfo &layer_info = hw_layers->info;

  for (uint32_t i = 0; i < layer_info.count; i++) {
    HWRotatorSession *hw_rotator_session = &hw_layers->config[i].hw_rotator_session;

    if (hw_rotator_session->hw_block_count) {
      return true;
    }
  }

  return false;
}

const char * DisplayBase::GetName(const LayerComposition &composition) {
  switch (composition) {
  case kCompositionGPU:         return "GPU";
  case kCompositionSDE:         return "SDE";
  case kCompositionHWCursor:    return "CURSOR";
  case kCompositionHybrid:      return "HYBRID";
  case kCompositionBlit:        return "BLIT";
  case kCompositionGPUTarget:   return "GPU_TARGET";
  case kCompositionBlitTarget:  return "BLIT_TARGET";
  default:                      return "UNKNOWN";
  }
}

DisplayError DisplayBase::ColorSVCRequestRoute(const PPDisplayAPIPayload &in_payload,
                                               PPDisplayAPIPayload *out_payload,
                                               PPPendingParams *pending_action) {
  if (color_mgr_)
    return color_mgr_->ColorSVCRequestRoute(in_payload, out_payload, pending_action);
  else
    return kErrorParameters;
}

DisplayError DisplayBase::GetColorModeCount(uint32_t *mode_count) {
  if (!mode_count) {
    return kErrorParameters;
  }

  if (!color_mgr_) {
    return kErrorNotSupported;
  }

  DisplayError error = color_mgr_->ColorMgrGetNumOfModes(&num_color_modes_);
  if (error != kErrorNone || !num_color_modes_) {
    return kErrorNotSupported;
  }

  DLOGI("Number of color modes = %d", num_color_modes_);
  *mode_count = num_color_modes_;

  return kErrorNone;
}

DisplayError DisplayBase::GetColorModes(uint32_t *mode_count,
                                        std::vector<std::string> *color_modes) {
  if (!mode_count || !color_modes) {
    return kErrorParameters;
  }

  if (!color_mgr_) {
    return kErrorNotSupported;
  }

  if (color_modes_ == NULL) {
    color_modes_ = new SDEDisplayMode[num_color_modes_];

    DisplayError error = color_mgr_->ColorMgrGetModes(&num_color_modes_, color_modes_);
    if (error != kErrorNone) {
      DLOGE("Failed");
      return error;
    }
    for (uint32_t i = 0; i < num_color_modes_; i++) {
      DLOGV_IF(kTagQDCM, "Color Mode[%d]: Name = %s mode_id = %d", i, color_modes_[i].name,
               color_modes_[i].id);
      color_mode_map_.insert(std::make_pair(color_modes_[i].name, &color_modes_[i]));
    }
  }

  for (uint32_t i = 0; i < num_color_modes_; i++) {
    DLOGV_IF(kTagQDCM, "Color Mode[%d]: Name = %s mode_id = %d", i, color_modes_[i].name,
             color_modes_[i].id);
    color_modes->at(i) = color_modes_[i].name;
  }

  return kErrorNone;
}

DisplayError DisplayBase::SetColorMode(const std::string &color_mode) {
  if (!color_mgr_) {
    return kErrorNotSupported;
  }

  DLOGV_IF(kTagQDCM, "Color Mode = %s", color_mode.c_str());

  ColorModeMap::iterator it = color_mode_map_.find(color_mode);
  if (it == color_mode_map_.end()) {
    DLOGE("Failed: Unknown Mode : %s", color_mode.c_str());
    return kErrorNotSupported;
  }

  SDEDisplayMode *sde_display_mode = it->second;
  if (color_mode_ == sde_display_mode->id) {
    DLOGV_IF(kTagQDCM, "Same mode requested");
    return kErrorNone;
  }

  DLOGV_IF(kTagQDCM, "Color Mode Name = %s corresponding mode_id = %d", sde_display_mode->name,
           sde_display_mode->id);
  DisplayError error = kErrorNone;
  error = color_mgr_->ColorMgrSetMode(sde_display_mode->id);
  if (error != kErrorNone) {
    DLOGE("Failed for mode id = %d", sde_display_mode->id);
    return error;
  }

  color_mode_ = sde_display_mode->id;

  return error;
}

DisplayError DisplayBase::SetColorTransform(const uint32_t length, const double *color_transform) {
  if (!color_mgr_) {
    return kErrorNotSupported;
  }

  if (!color_transform) {
    return kErrorParameters;
  }

  return color_mgr_->ColorMgrSetColorTransform(length, color_transform);
}

DisplayError DisplayBase::ApplyDefaultDisplayMode() {
  if (color_mgr_)
    return color_mgr_->ApplyDefaultDisplayMode();
  else
    return kErrorParameters;
}

DisplayError DisplayBase::SetCursorPosition(int x, int y) {
  if (state_ != kStateOn) {
    return kErrorNotSupported;
  }

  DisplayError error = comp_manager_->ValidateCursorPosition(display_comp_ctx_, &hw_layers_, x, y);
  if (error == kErrorNone) {
    return hw_intf_->SetCursorPosition(&hw_layers_, x, y);
  }

  return kErrorNone;
}

DisplayError DisplayBase::GetRefreshRateRange(uint32_t *min_refresh_rate,
                                              uint32_t *max_refresh_rate) {
  // The min and max refresh rates will be same when the HWPanelInfo does not contain valid rates.
  // Usually for secondary displays, command mode panels
  HWDisplayAttributes display_attributes;
  uint32_t active_index = 0;
  hw_intf_->GetActiveConfig(&active_index);
  DisplayError error = hw_intf_->GetDisplayAttributes(active_index, &display_attributes);
  if (error) {
    return error;
  }

  *min_refresh_rate = display_attributes.fps;
  *max_refresh_rate = display_attributes.fps;

  return error;
}

DisplayError DisplayBase::GetPanelBrightness(int *level) {
  return kErrorNotSupported;
}

DisplayError DisplayBase::SetVSyncState(bool enable) {
  DisplayError error = kErrorNone;
  if (vsync_enable_ != enable) {
    error = hw_intf_->SetVSyncState(enable);
    if (error == kErrorNone) {
      vsync_enable_ = enable;
    }
  }
  return error;
}

DisplayError DisplayBase::ReconfigureDisplay() {
  DisplayError error = kErrorNone;
  HWDisplayAttributes display_attributes;
  HWMixerAttributes mixer_attributes;
  HWPanelInfo hw_panel_info;
  uint32_t active_index = 0;

  error = hw_intf_->GetActiveConfig(&active_index);
  if (error != kErrorNone) {
    return error;
  }

  error = hw_intf_->GetDisplayAttributes(active_index, &display_attributes);
  if (error != kErrorNone) {
    return error;
  }

  error = hw_intf_->GetMixerAttributes(&mixer_attributes);
  if (error != kErrorNone) {
    return error;
  }

  error = hw_intf_->GetHWPanelInfo(&hw_panel_info);
  if (error != kErrorNone) {
    return error;
  }

  if (display_attributes == display_attributes_ && mixer_attributes == mixer_attributes_ &&
      hw_panel_info == hw_panel_info_) {
    return kErrorNone;
  }

  error = comp_manager_->ReconfigureDisplay(display_comp_ctx_, display_attributes, hw_panel_info,
                                            mixer_attributes, fb_config_);
  if (error != kErrorNone) {
    return error;
  }

  if (mixer_attributes != mixer_attributes_) {
    DisablePartialUpdateOneFrameLocked();
  }

  display_attributes_ = display_attributes;
  mixer_attributes_ = mixer_attributes;
  hw_panel_info_ = hw_panel_info;

  return kErrorNone;
}

DisplayError DisplayBase::SetMixerResolution(uint32_t width, uint32_t height) {
  SCOPE_LOCK(locker_);
  return SetMixerResolutionLocked(width, height);
}

DisplayError DisplayBase::SetMixerResolutionLocked(uint32_t width, uint32_t height) {
  return ReconfigureMixer(width, height);
}

DisplayError DisplayBase::GetMixerResolution(uint32_t *width, uint32_t *height) {
  SCOPE_LOCK(locker_);
  return GetMixerResolutionLocked(width, height);
}

DisplayError DisplayBase::GetMixerResolutionLocked(uint32_t *width, uint32_t *height) {
  if (!width || !height) {
    return kErrorParameters;
  }

  *width = mixer_attributes_.width;
  *height = mixer_attributes_.height;

  return kErrorNone;
}

DisplayError DisplayBase::ReconfigureMixer(uint32_t width, uint32_t height) {
  DisplayError error = kErrorNone;

  HWMixerAttributes mixer_attributes;
  mixer_attributes.width = width;
  mixer_attributes.height = height;

  error = hw_intf_->SetMixerAttributes(mixer_attributes);
  if (error != kErrorNone) {
    return error;
  }

  return ReconfigureDisplay();
}

bool DisplayBase::NeedsMixerReconfiguration(LayerStack *layer_stack, uint32_t *new_mixer_width,
                                            uint32_t *new_mixer_height) {
  uint32_t layer_count = UINT32(layer_stack->layers.size());

  uint32_t fb_width  = fb_config_.x_pixels;
  uint32_t fb_height  = fb_config_.y_pixels;
  uint32_t fb_area = fb_width * fb_height;
  LayerRect fb_rect = (LayerRect) {0.0f, 0.0f, FLOAT(fb_width), FLOAT(fb_height)};
  uint32_t mixer_width = mixer_attributes_.width;
  uint32_t mixer_height = mixer_attributes_.height;

  RectOrientation fb_orientation = GetOrientation(fb_rect);
  uint32_t max_layer_area = 0;
  uint32_t max_area_layer_index = 0;
  std::vector<Layer *> layers = layer_stack->layers;

  for (uint32_t i = 0; i < layer_count; i++) {
    Layer *layer = layers.at(i);
    LayerBuffer *layer_buffer = layer->input_buffer;

    if (!layer_buffer->flags.video) {
      continue;
    }

    uint32_t layer_width = UINT32(layer->src_rect.right - layer->src_rect.left);
    uint32_t layer_height = UINT32(layer->src_rect.bottom - layer->src_rect.top);
    uint32_t layer_area = layer_width * layer_height;

    if (layer_area > max_layer_area) {
      max_layer_area = layer_area;
      max_area_layer_index = i;
    }
  }

  if (max_layer_area > fb_area) {
    Layer *layer = layers.at(max_area_layer_index);

    uint32_t layer_width = UINT32(layer->src_rect.right - layer->src_rect.left);
    uint32_t layer_height = UINT32(layer->src_rect.bottom - layer->src_rect.top);
    LayerRect layer_rect = (LayerRect){0.0f, 0.0f, FLOAT(layer_width), FLOAT(layer_height)};

    RectOrientation layer_orientation = GetOrientation(layer_rect);
    if (layer_orientation != kOrientationUnknown &&
        fb_orientation != kOrientationUnknown) {
      if (layer_orientation != fb_orientation) {
        std::swap(layer_width, layer_height);
      }
    }

    // Align the width and height according to fb's aspect ratio
    layer_width = UINT32((FLOAT(fb_width) / FLOAT(fb_height)) * layer_height);

    *new_mixer_width = layer_width;
    *new_mixer_height = layer_height;

    return true;
  } else {
    if (fb_width != mixer_width || fb_height != mixer_height) {
      *new_mixer_width = fb_width;
      *new_mixer_height = fb_height;

      return true;
    }
  }

  return false;
}

DisplayError DisplayBase::SetFrameBufferConfig(const DisplayConfigVariableInfo &variable_info) {
  SCOPE_LOCK(locker_);
  return SetFrameBufferConfigLocked(variable_info);
}

DisplayError DisplayBase::SetFrameBufferConfigLocked(
                                   const DisplayConfigVariableInfo &variable_info) {
  uint32_t width = variable_info.x_pixels;
  uint32_t height = variable_info.y_pixels;

  if (width == 0 || height == 0) {
    DLOGE("Unsupported resolution: (%dx%d)", width, height);
    return kErrorParameters;
  }

  // Create rects to represent the new source and destination crops
  LayerRect crop = LayerRect(0, 0, FLOAT(width), FLOAT(height));
  LayerRect dst = LayerRect(0, 0, FLOAT(mixer_attributes_.width), FLOAT(mixer_attributes_.height));
  // Set rotate90 to false since this is taken care of during regular composition.
  bool rotate90 = false;

  DisplayError error = comp_manager_->ValidateScaling(crop, dst, rotate90);
  if (error != kErrorNone) {
    DLOGE("Unsupported resolution: (%dx%d)", width, height);
    return kErrorParameters;
  }

  error =  comp_manager_->ReconfigureDisplay(display_comp_ctx_, display_attributes_, hw_panel_info_,
                                             mixer_attributes_, variable_info);
  if (error != kErrorNone) {
    return error;
  }

  fb_config_.x_pixels = width;
  fb_config_.y_pixels = height;

  DLOGI("New framebuffer resolution (%dx%d)", fb_config_.x_pixels, fb_config_.y_pixels);

  return kErrorNone;
}

DisplayError DisplayBase::GetFrameBufferConfig(DisplayConfigVariableInfo *variable_info) {
  SCOPE_LOCK(locker_);
  return GetFrameBufferConfigLocked(variable_info);
}

DisplayError DisplayBase::GetFrameBufferConfigLocked(DisplayConfigVariableInfo *variable_info) {
  if (!variable_info) {
    return kErrorParameters;
  }

  *variable_info = fb_config_;

  return kErrorNone;
}

DisplayError DisplayBase::SetDetailEnhancerData(const DisplayDetailEnhancerData &de_data) {
  SCOPE_LOCK(locker_);
  return SetDetailEnhancerDataLocked(de_data);
}

DisplayError DisplayBase::SetDetailEnhancerDataLocked(const DisplayDetailEnhancerData &de_data) {
  DisplayError error = comp_manager_->SetDetailEnhancerData(display_comp_ctx_, de_data);
  if (error != kErrorNone) {
    return error;
  }

  DisablePartialUpdateOneFrameLocked();

  return kErrorNone;
}

}  // namespace sdm