1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * Copyright (C) 2012-2014, The Linux Foundation. All rights reserved. 4 * 5 * Not a Contribution, Apache license notifications and license are retained 6 * for attribution purposes only. 7 * 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 #ifndef HWC_VIRTUAL 22 #define HWC_VIRTUAL 23 24 #include <hwc_utils.h> 25 26 namespace qhwc { 27 28 class HWCVirtualVDS { 29 public: 30 HWCVirtualVDS(){}; 31 ~HWCVirtualVDS(){}; 32 // Chooses composition type and configures pipe for each layer in virtual 33 // display list 34 int prepare(hwc_composer_device_1 *dev, 35 hwc_display_contents_1_t* list); 36 // Queues the buffer for each layer in virtual display list and call display 37 // commit. 38 int set(hwc_context_t *ctx, hwc_display_contents_1_t *list); 39 // instantiates mdpcomp, copybit and fbupdate objects and initialize those 40 // objects for virtual display during virtual display connect. 41 void init(hwc_context_t *ctx); 42 // Destroys mdpcomp, copybit and fbupdate objects and for virtual display 43 // during virtual display disconnect. 44 void destroy(hwc_context_t *ctx, size_t numDisplays, 45 hwc_display_contents_1_t** displays); 46 int getScalingHeight() const { return mScalingHeight; }; 47 int getScalingWidth() const { return mScalingWidth; }; 48 // We can dump the frame buffer and WB 49 // output buffer by dynamically enabling 50 // dumping via a binder call: 51 // adb shell service call display.qservice 15 i32 3 i32 1 52 static bool sVDDumpEnabled; 53 static void dynamicDebug(bool enable) {sVDDumpEnabled = enable;}; 54 55 private: 56 // These variables store the resolution that WB is being configured to 57 // in the current draw cycle. 58 int mScalingWidth, mScalingHeight; 59 void setMDPScalingMode(hwc_context_t* ctx, 60 private_handle_t* ohnd, int dpy); 61 }; 62 63 }; //namespace 64 #endif 65
