1/* 2* Copyright (c) 2015 - 2016, The Linux Foundation. All rights reserved. 3* 4* Redistribution and use in source and binary forms, with or without 5* modification, are permitted provided that the following conditions are 6* met: 7* * Redistributions of source code must retain the above copyright 8* notice, this list of conditions and the following disclaimer. 9* * Redistributions in binary form must reproduce the above 10* copyright notice, this list of conditions and the following 11* disclaimer in the documentation and/or other materials provided 12* with the distribution. 13* * Neither the name of The Linux Foundation nor the names of its 14* contributors may be used to endorse or promote products derived 15* from this software without specific prior written permission. 16* 17* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28*/ 29 30#include <utils/debug.h> 31#include "hw_virtual.h" 32 33#define __CLASS__ "HWVirtual" 34 35namespace sdm { 36 37DisplayError HWVirtual::Create(HWInterface **intf, HWInfoInterface *hw_info_intf, 38 BufferSyncHandler *buffer_sync_handler) { 39 DisplayError error = kErrorNone; 40 HWVirtual *hw_virtual = NULL; 41 42 hw_virtual = new HWVirtual(buffer_sync_handler, hw_info_intf); 43 error = hw_virtual->Init(); 44 if (error != kErrorNone) { 45 delete hw_virtual; 46 } else { 47 *intf = hw_virtual; 48 } 49 50 return error; 51} 52 53DisplayError HWVirtual::Destroy(HWInterface *intf) { 54 HWVirtual *hw_virtual = static_cast<HWVirtual *>(intf); 55 hw_virtual->Deinit(); 56 delete hw_virtual; 57 58 return kErrorNone; 59} 60 61HWVirtual::HWVirtual(BufferSyncHandler *buffer_sync_handler, HWInfoInterface *hw_info_intf) 62 : HWDevice(buffer_sync_handler) { 63 HWDevice::device_type_ = kDeviceVirtual; 64 HWDevice::device_name_ = "Virtual Display Device"; 65 HWDevice::hw_info_intf_ = hw_info_intf; 66} 67 68DisplayError HWVirtual::Init() { 69 return HWDevice::Init(); 70} 71 72DisplayError HWVirtual::Validate(HWLayers *hw_layers) { 73 HWDevice::ResetDisplayParams(); 74 return HWDevice::Validate(hw_layers); 75} 76 77DisplayError HWVirtual::GetMixerAttributes(HWMixerAttributes *mixer_attributes) { 78 if (!mixer_attributes) { 79 return kErrorParameters; 80 } 81 82 mixer_attributes->width = display_attributes_.x_pixels; 83 mixer_attributes->height = display_attributes_.y_pixels; 84 mixer_attributes_.split_left = display_attributes_.is_device_split ? 85 (display_attributes_.x_pixels / 2) : mixer_attributes_.width; 86 87 return kErrorNone; 88} 89 90DisplayError HWVirtual::SetDisplayAttributes(const HWDisplayAttributes &display_attributes) { 91 if (display_attributes.x_pixels == 0 || display_attributes.y_pixels == 0) { 92 return kErrorParameters; 93 } 94 95 display_attributes_ = display_attributes; 96 97 if (display_attributes_.x_pixels > hw_resource_.max_mixer_width) { 98 display_attributes_.is_device_split = true; 99 } 100 101 return kErrorNone; 102} 103 104} // namespace sdm 105 106