1 /* 2 * Copyright (c) 2013 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 #include <gralloc_priv.h> 30 #include <qdMetaData.h> 31 #include <mdp_version.h> 32 #include <hardware/hwcomposer.h> 33 34 // This header is for clients to use to set/get global display configuration 35 // The functions in this header run in the client process and wherever necessary 36 // do a binder call to HWC to get/set data. 37 // Only primary and external displays are supported here. 38 // WiFi/virtual displays are not supported. 39 40 namespace qdutils { 41 42 // Use this enum to specify the dpy parameters where needed 43 enum { 44 DISPLAY_PRIMARY = 0, 45 DISPLAY_EXTERNAL, 46 }; 47 48 // Display Attributes that are available to clients of this library 49 // Not to be confused with a similar struct in hwc_utils (in the hwc namespace) 50 struct DisplayAttributes_t { 51 uint32_t vsync_period; //nanoseconds 52 uint32_t xres; 53 uint32_t yres; 54 float xdpi; 55 float ydpi; 56 char panel_type; 57 }; 58 59 // Check if external display is connected. Useful to check before making 60 // calls for external displays 61 // Returns 1 if connected, 0 if disconnected, negative values on errors 62 int isExternalConnected(void); 63 64 // Get display vsync period which is in nanoseconds 65 // i.e vsync_period = 1000000000l / fps 66 // Returns 0 on success, negative values on errors 67 int getDisplayAttributes(int dpy, DisplayAttributes_t& dpyattr); 68 69 // Set HSIC data on a given display ID 70 // Returns 0 on success, negative values on errors 71 int setHSIC(int dpy, const HSICData_t& hsic_data); 72 73 // get the active visible region for the display 74 // Returns 0 on success, negative values on errors 75 int getDisplayVisibleRegion(int dpy, hwc_rect_t &rect); 76 }; //namespace 77