| /* |
| * Copyright (c) 2014 - 2017, 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 <utils/constants.h> |
| #include <utils/debug.h> |
| #include <algorithm> |
| #include "display_virtual.h" |
| #include "hw_interface.h" |
| #include "hw_info_interface.h" |
| |
| #define __CLASS__ "DisplayVirtual" |
| |
| namespace sdm { |
| |
| DisplayVirtual::DisplayVirtual(DisplayEventHandler *event_handler, HWInfoInterface *hw_info_intf, |
| BufferSyncHandler *buffer_sync_handler, |
| BufferAllocator *buffer_allocator, CompManager *comp_manager) |
| : DisplayBase(kVirtual, event_handler, kDeviceVirtual, buffer_sync_handler, buffer_allocator, |
| comp_manager, hw_info_intf) { |
| } |
| |
| DisplayError DisplayVirtual::Init() { |
| lock_guard<recursive_mutex> obj(recursive_mutex_); |
| |
| DisplayError error = HWInterface::Create(kVirtual, hw_info_intf_, buffer_sync_handler_, |
| buffer_allocator_, &hw_intf_); |
| if (error != kErrorNone) { |
| return error; |
| } |
| |
| HWScaleLutInfo lut_info = {}; |
| error = comp_manager_->GetScaleLutConfig(&lut_info); |
| if (error == kErrorNone) { |
| error = hw_intf_->SetScaleLutConfig(&lut_info); |
| if (error != kErrorNone) { |
| HWInterface::Destroy(hw_intf_); |
| return error; |
| } |
| } |
| |
| 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); |
| } |
| |
| return error; |
| } |
| |
| DisplayError DisplayVirtual::GetNumVariableInfoConfigs(uint32_t *count) { |
| lock_guard<recursive_mutex> obj(recursive_mutex_); |
| *count = 1; |
| return kErrorNone; |
| } |
| |
| DisplayError DisplayVirtual::GetConfig(uint32_t index, DisplayConfigVariableInfo *variable_info) { |
| lock_guard<recursive_mutex> obj(recursive_mutex_); |
| *variable_info = display_attributes_; |
| return kErrorNone; |
| } |
| |
| DisplayError DisplayVirtual::GetActiveConfig(uint32_t *index) { |
| lock_guard<recursive_mutex> obj(recursive_mutex_); |
| *index = 0; |
| return kErrorNone; |
| } |
| |
| DisplayError DisplayVirtual::SetActiveConfig(DisplayConfigVariableInfo *variable_info) { |
| lock_guard<recursive_mutex> obj(recursive_mutex_); |
| |
| if (!variable_info) { |
| return kErrorParameters; |
| } |
| |
| DisplayError error = kErrorNone; |
| HWDisplayAttributes display_attributes; |
| HWMixerAttributes mixer_attributes; |
| HWPanelInfo hw_panel_info = {}; |
| DisplayConfigVariableInfo fb_config = fb_config_; |
| |
| display_attributes.x_pixels = variable_info->x_pixels; |
| display_attributes.y_pixels = variable_info->y_pixels; |
| display_attributes.fps = variable_info->fps; |
| |
| if (display_attributes == display_attributes_) { |
| return kErrorNone; |
| } |
| |
| error = hw_intf_->SetDisplayAttributes(display_attributes); |
| if (error != kErrorNone) { |
| return error; |
| } |
| |
| hw_intf_->GetHWPanelInfo(&hw_panel_info); |
| |
| error = hw_intf_->GetMixerAttributes(&mixer_attributes); |
| if (error != kErrorNone) { |
| return error; |
| } |
| |
| // fb_config will be updated only once after creation of virtual display |
| if (fb_config.x_pixels == 0 || fb_config.y_pixels == 0) { |
| fb_config = display_attributes; |
| } |
| |
| // if display is already connected, unregister display from composition manager and register |
| // the display with new configuration. |
| if (display_comp_ctx_) { |
| comp_manager_->UnregisterDisplay(display_comp_ctx_); |
| } |
| |
| error = comp_manager_->RegisterDisplay(display_type_, display_attributes, hw_panel_info, |
| mixer_attributes, fb_config, &display_comp_ctx_); |
| if (error != kErrorNone) { |
| return error; |
| } |
| |
| display_attributes_ = display_attributes; |
| mixer_attributes_ = mixer_attributes; |
| hw_panel_info_ = hw_panel_info; |
| fb_config_ = fb_config; |
| |
| DLOGI("Virtual display resolution changed to[%dx%d]", display_attributes_.x_pixels, |
| display_attributes_.y_pixels); |
| |
| return kErrorNone; |
| } |
| |
| DisplayError DisplayVirtual::Prepare(LayerStack *layer_stack) { |
| lock_guard<recursive_mutex> obj(recursive_mutex_); |
| |
| // Clean hw layers for reuse. |
| hw_layers_ = HWLayers(); |
| |
| return DisplayBase::Prepare(layer_stack); |
| } |
| |
| |
| } // namespace sdm |
| |