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/*
* 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 "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;
}
hw_intf_->GetDisplayAttributes(0 /* active_index */, &display_attributes_);
error = DisplayBase::Init();
if (error != kErrorNone) {
HWInterface::Destroy(hw_intf_);
}
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;
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;
}
error = hw_intf_->GetMixerAttributes(&mixer_attributes);
if (error != kErrorNone) {
return error;
}
// 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;
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
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