107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani/* 207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * Copyright (C) 2010 The Android Open Source Project 307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * Copyright (C) 2012-2014, The Linux Foundation. All rights reserved. 407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * 507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * Not a Contribution, Apache license notifications and license are 607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * retained for attribution purposes only. 707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * Licensed under the Apache License, Version 2.0 (the "License"); 907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * you may not use this file except in compliance with the License. 1007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * You may obtain a copy of the License at 1107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * 1207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * http://www.apache.org/licenses/LICENSE-2.0 1307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * 1407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * Unless required by applicable law or agreed to in writing, software 1507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * distributed under the License is distributed on an "AS IS" BASIS, 1607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * See the License for the specific language governing permissions and 1807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani * limitations under the License. 1907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani */ 2007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 2107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <cutils/properties.h> 2207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <utils/Log.h> 2307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <fcntl.h> 2407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <sys/ioctl.h> 2507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <linux/msm_mdp.h> 2607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <sys/resource.h> 2707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <sys/prctl.h> 2807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <poll.h> 2907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include "hwc_utils.h" 3007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include "hdmi.h" 3107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include "qd_utils.h" 3207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include "string.h" 3307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include "overlay.h" 3407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#define __STDC_FORMAT_MACROS 1 3507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#include <inttypes.h> 3607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 3707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malaniusing namespace qdutils; 3807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malaninamespace qhwc { 3907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 4007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#define HWC_VSYNC_THREAD_NAME "hwcVsyncThread" 4107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#define PANEL_ON_STR "panel_power_on =" 4207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#define ARRAY_LENGTH(array) (sizeof((array))/sizeof((array)[0])) 4307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#define MAX_THERMAL_LEVEL 3 4407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malaniconst int MAX_DATA = 64; 4507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 4607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malaniint hwc_vsync_control(hwc_context_t* ctx, int dpy, int enable) 4707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani{ 4807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani int ret = 0; 4907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if(!ctx->vstate.fakevsync && 5007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ioctl(ctx->dpyAttr[dpy].fd, MSMFB_OVERLAY_VSYNC_CTRL, 5107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani &enable) < 0) { 5207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGE("%s: vsync control failed. Dpy=%d, enable=%d : %s", 5307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani __FUNCTION__, dpy, enable, strerror(errno)); 5407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ret = -errno; 5507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 5607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani return ret; 5707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani} 5807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 5907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malanistatic void handle_vsync_event(hwc_context_t* ctx, int dpy, char *data) 6007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani{ 6107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // extract timestamp 6207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani uint64_t timestamp = 0; 6307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (!strncmp(data, "VSYNC=", strlen("VSYNC="))) { 6407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani timestamp = strtoull(data + strlen("VSYNC="), NULL, 0); 6507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 6607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // send timestamp to SurfaceFlinger 6707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGD_IF (ctx->vstate.debug, "%s: timestamp %" PRIu64 " sent to SF for dpy=%d", 6807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani __FUNCTION__, timestamp, dpy); 6907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ctx->proc->vsync(ctx->proc, dpy, timestamp); 7007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani} 7107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 7207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malanistatic void handle_blank_event(hwc_context_t* ctx, int dpy, char *data) 7307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani{ 7407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (!strncmp(data, PANEL_ON_STR, strlen(PANEL_ON_STR))) { 7507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani unsigned long int poweron = strtoul(data + strlen(PANEL_ON_STR), NULL, 0); 7607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGI("%s: dpy:%d panel power state: %ld", __FUNCTION__, dpy, poweron); 7707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (!ctx->mHDMIDisplay->isHDMIPrimaryDisplay()) { 7807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ctx->dpyAttr[dpy].isActive = poweron ? true: false; 7907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 8007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 8107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani} 8207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 8307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malanistatic void handle_thermal_event(hwc_context_t* ctx, int dpy, char *data) 8407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani{ 8507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // extract thermal level 8607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani uint64_t thermalLevel = 0; 8707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (!strncmp(data, "thermal_level=", strlen("thermal_level="))) { 8807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani thermalLevel = strtoull(data + strlen("thermal_level="), NULL, 0); 8907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 9007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 9107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (thermalLevel >= MAX_THERMAL_LEVEL) { 9207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGD("%s: dpy:%d thermal_level=%" PRIu64 "",__FUNCTION__,dpy,thermalLevel); 9307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ctx->mThermalBurstMode = true; 9407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } else 9507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ctx->mThermalBurstMode = false; 9607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani} 9707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 9807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malanistruct event { 9907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani const char* name; 10007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani void (*callback)(hwc_context_t* ctx, int dpy, char *data); 10107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani}; 10207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 10307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malanistruct event event_list[] = { 10407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani { "vsync_event", handle_vsync_event }, 10507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani { "show_blank_event", handle_blank_event }, 10607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani { "msm_fb_thermal_level", handle_thermal_event }, 10707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani}; 10807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 10907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani#define num_events ARRAY_LENGTH(event_list) 11007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 11107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malanistatic void *vsync_loop(void *param) 11207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani{ 11307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani hwc_context_t * ctx = reinterpret_cast<hwc_context_t *>(param); 11407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 11507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani char thread_name[64] = HWC_VSYNC_THREAD_NAME; 11607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani prctl(PR_SET_NAME, (unsigned long) &thread_name, 0, 0, 0); 11707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY + 11807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani android::PRIORITY_MORE_FAVORABLE); 11907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 12007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani char vdata[MAX_DATA]; 12107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //Number of physical displays 12207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //We poll on all the nodes. 12307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani int num_displays = HWC_NUM_DISPLAY_TYPES - 1; 12407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani struct pollfd pfd[num_displays][num_events]; 12507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 12607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani char property[PROPERTY_VALUE_MAX]; 12707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if(property_get("debug.hwc.fakevsync", property, NULL) > 0) { 12807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if(atoi(property) == 1) 12907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ctx->vstate.fakevsync = true; 13007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 13107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 13207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani char node_path[MAX_SYSFS_FILE_PATH]; 13307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 13407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani for (int dpy = HWC_DISPLAY_PRIMARY; dpy < num_displays; dpy++) { 13507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani for(size_t ev = 0; ev < num_events; ev++) { 13607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani snprintf(node_path, sizeof(node_path), 13707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani "/sys/class/graphics/fb%d/%s", 13807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani dpy == HWC_DISPLAY_PRIMARY ? 0 : 13907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani overlay::Overlay::getInstance()-> 14007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani getFbForDpy(HWC_DISPLAY_EXTERNAL), 14107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani event_list[ev].name); 14207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 14307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGI("%s: Reading event %zu for dpy %d from %s", __FUNCTION__, 14407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ev, dpy, node_path); 14507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani pfd[dpy][ev].fd = open(node_path, O_RDONLY); 14607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 14707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (dpy == HWC_DISPLAY_PRIMARY && pfd[dpy][ev].fd < 0) { 14807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // Make sure fb device is opened before starting 14907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // this thread so this never happens. 15007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGE ("%s:unable to open event node for dpy=%d event=%zu, %s", 15107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani __FUNCTION__, dpy, ev, strerror(errno)); 15207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (ev == 0) { 15307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ctx->vstate.fakevsync = true; 15407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //XXX: Blank events don't work with fake vsync, 15507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //but we shouldn't be running on fake vsync anyway. 15607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani break; 15707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 15807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 15907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 16007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani memset(&vdata, '\0', sizeof(vdata)); 16107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // Read once from the fds to clear the first notify 16207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani pread(pfd[dpy][ev].fd, vdata , MAX_DATA - 1, 0); 16307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (pfd[dpy][ev].fd >= 0) 16407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani pfd[dpy][ev].events = POLLPRI | POLLERR; 16507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 16607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 16707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 16807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (LIKELY(!ctx->vstate.fakevsync)) { 16907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani do { 17007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani int err = poll(*pfd, (int)(num_displays * num_events), -1); 17107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if(err > 0) { 17207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani for (int dpy = HWC_DISPLAY_PRIMARY; dpy < num_displays; dpy++) { 17307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani for(size_t ev = 0; ev < num_events; ev++) { 17407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (pfd[dpy][ev].revents & POLLPRI) { 17507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // Clear vdata before writing into it 17607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani memset(&vdata, '\0', sizeof(vdata)); 17707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ssize_t len = pread(pfd[dpy][ev].fd, vdata, 17807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani MAX_DATA - 1, 0); 17907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (UNLIKELY(len < 0)) { 18007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // If the read was just interrupted - it is not 18107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani // a fatal error. Just continue in this case 18207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGE ("%s: Unable to read event:%zu for \ 18307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani dpy=%d : %s", 18407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani __FUNCTION__, ev, dpy, strerror(errno)); 18507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani continue; 18607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 18707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani vdata[len] = '\0'; 18807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani event_list[ev].callback(ctx, dpy, vdata); 18907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 19007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 19107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 19207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } else { 19307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGE("%s: poll failed errno: %s", __FUNCTION__, 19407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani strerror(errno)); 19507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani continue; 19607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 19707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } while (true); 19807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 19907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } else { 20007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 20107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //Fake vsync is used only when set explicitly through a property or when 20207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //the vsync timestamp node cannot be opened at bootup. There is no 20307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //fallback to fake vsync from the true vsync loop, ever, as the 20407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //condition can easily escape detection. 20507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani //Also, fake vsync is delivered only for the primary display. 20607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani do { 20707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani usleep(16666); 20807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani uint64_t timestamp = systemTime(); 20907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ctx->proc->vsync(ctx->proc, HWC_DISPLAY_PRIMARY, timestamp); 21007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 21107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } while (true); 21207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 21307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 21407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani for (int dpy = HWC_DISPLAY_PRIMARY; dpy <= HWC_DISPLAY_EXTERNAL; dpy++ ) { 21507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani for( size_t event = 0; event < num_events; event++) { 21607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if(pfd[dpy][event].fd >= 0) 21707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani close (pfd[dpy][event].fd); 21807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 21907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 22007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 22107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani return NULL; 22207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani} 22307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 22407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malanivoid init_vsync_thread(hwc_context_t* ctx) 22507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani{ 22607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani int ret; 22707bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani pthread_t vsync_thread; 22807bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGI("Initializing VSYNC Thread"); 22907bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ret = pthread_create(&vsync_thread, NULL, vsync_loop, (void*) ctx); 23007bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani if (ret) { 23107bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani ALOGE("%s: failed to create %s: %s", __FUNCTION__, 23207bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani HWC_VSYNC_THREAD_NAME, strerror(ret)); 23307bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani } 23407bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani} 23507bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani 23607bbf1e89c031a5d41a7561433e832d396c311a5Prashant Malani}; //namespace 237