strategy_interface.h revision fc811a3e18140740eaf6bb70a48e12f1f176e17b
1/* 2* Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved. 3* 4* Redistribution and use in source and binary forms, with or without modification, are permitted 5* provided that the following conditions are met: 6* * Redistributions of source code must retain the above copyright notice, this list of 7* conditions and the following disclaimer. 8* * Redistributions in binary form must reproduce the above copyright notice, this list of 9* conditions and the following disclaimer in the documentation and/or other materials provided 10* with the distribution. 11* * Neither the name of The Linux Foundation nor the names of its contributors may be used to 12* endorse or promote products derived from this software without specific prior written 13* permission. 14* 15* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 16* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 17* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 18* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 19* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 20* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 21* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 22* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23*/ 24 25#ifndef __STRATEGY_INTERFACE_H__ 26#define __STRATEGY_INTERFACE_H__ 27 28#include <core/sdm_types.h> 29#include <core/display_interface.h> 30#include "hw_info_types.h" 31 32namespace sdm { 33 34struct StrategyConstraints { 35 bool safe_mode = false; //!< In this mode, strategy manager chooses the composition strategy 36 //!< that requires minimum number of pipe for the current frame. i.e., 37 //!< video only composition, secure only composition or GPU composition 38 39 bool use_cursor = false; //!< If this is set, strategy manager will configure cursor layer in the 40 //!< layer stack as hw cursor else it will be treated as a normal layer 41 42 uint32_t max_layers = kMaxSDELayers; //!< Maximum number of layers that shall be programmed 43 //!< on hardware for the given layer stack. 44}; 45 46class StrategyInterface { 47 public: 48 virtual DisplayError Start(HWLayersInfo *hw_layers_info, uint32_t *max_attempts) = 0; 49 virtual DisplayError GetNextStrategy(StrategyConstraints *constraints) = 0; 50 virtual DisplayError Stop() = 0; 51 virtual DisplayError Reconfigure(HWDisplayMode mode, HWS3DMode s3d_mode, 52 const HWMixerAttributes &mixer_attributes, 53 const DisplayConfigVariableInfo &fb_config) = 0; 54 55 protected: 56 virtual ~StrategyInterface() { } 57}; 58 59} // namespace sdm 60 61#endif // __STRATEGY_INTERFACE_H__ 62 63