Update minuitwrp graphics in line with latest minui
Note: events.cpp is still old code renamed to cpp to make it
easier to call functions like gr_fb_width().
I had to modify AOSP fbdev code to provide a separate memory
surface for drawing to as drawing directly to the framebuffer
resulted in rendering taking about 5 times longer.
I also modified AOSP adf code to provide a separate memory surface
for drawing for the same performance reasons. The Nexus 9 supports
adf graphics.
Overlay graphics work on at least one device. Overlay provides a
separate memory buffer already so performance is good.
I do not have a drm device yet that I know of. I made some attempt
to update the drm code to determine the correct pixel format based
on the drm graphics format, but what is available in pixel flinger
and what is available in drm do not line up all that well. Reports
are that the Pixel C is using drm graphics, but performance is
slow, likely due to the use of a mmap instead of a memory buffyer.
Change-Id: Ibd45bccca6ac2cb826037aa9b2aa5065cf683eed
diff --git a/minuitwrp/events.cpp b/minuitwrp/events.cpp
new file mode 100644
index 0000000..d4ca0ab
--- /dev/null
+++ b/minuitwrp/events.cpp
@@ -0,0 +1,792 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/poll.h>
+#include <limits.h>
+#include <linux/input.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+
+
+#include "../common.h"
+
+#include "minui.h"
+
+//#define _EVENT_LOGGING
+
+#define MAX_DEVICES 32
+
+#define VIBRATOR_TIMEOUT_FILE "/sys/class/timed_output/vibrator/enable"
+#define VIBRATOR_TIME_MS 50
+
+#ifndef SYN_REPORT
+#define SYN_REPORT 0x00
+#endif
+#ifndef SYN_CONFIG
+#define SYN_CONFIG 0x01
+#endif
+#ifndef SYN_MT_REPORT
+#define SYN_MT_REPORT 0x02
+#endif
+
+#define ABS_MT_POSITION 0x2a /* Group a set of X and Y */
+#define ABS_MT_AMPLITUDE 0x2b /* Group a set of Z and W */
+#define ABS_MT_SLOT 0x2f
+#define ABS_MT_TOUCH_MAJOR 0x30
+#define ABS_MT_TOUCH_MINOR 0x31
+#define ABS_MT_WIDTH_MAJOR 0x32
+#define ABS_MT_WIDTH_MINOR 0x33
+#define ABS_MT_ORIENTATION 0x34
+#define ABS_MT_POSITION_X 0x35
+#define ABS_MT_POSITION_Y 0x36
+#define ABS_MT_TOOL_TYPE 0x37
+#define ABS_MT_BLOB_ID 0x38
+#define ABS_MT_TRACKING_ID 0x39
+#define ABS_MT_PRESSURE 0x3a
+#define ABS_MT_DISTANCE 0x3b
+
+enum {
+ DOWN_NOT,
+ DOWN_SENT,
+ DOWN_RELEASED,
+};
+
+struct virtualkey {
+ int scancode;
+ int centerx, centery;
+ int width, height;
+};
+
+struct position {
+ int x, y;
+ int synced;
+ struct input_absinfo xi, yi;
+};
+
+struct ev {
+ struct pollfd *fd;
+
+ struct virtualkey *vks;
+ int vk_count;
+
+ char deviceName[64];
+
+ int ignored;
+
+ struct position p, mt_p;
+ int down;
+};
+
+static struct pollfd ev_fds[MAX_DEVICES];
+static struct ev evs[MAX_DEVICES];
+static unsigned ev_count = 0;
+static struct timeval lastInputStat;
+static unsigned long lastInputMTime;
+static int has_mouse = 0;
+
+static inline int ABS(int x) {
+ return x<0?-x:x;
+}
+
+int vibrate(int timeout_ms)
+{
+ char str[20];
+ int fd;
+ int ret;
+
+ if (timeout_ms > 10000) timeout_ms = 1000;
+
+ fd = open(VIBRATOR_TIMEOUT_FILE, O_WRONLY);
+ if (fd < 0)
+ return -1;
+
+ ret = snprintf(str, sizeof(str), "%d", timeout_ms);
+ ret = write(fd, str, ret);
+ close(fd);
+
+ if (ret < 0)
+ return -1;
+
+ return 0;
+}
+
+/* Returns empty tokens */
+static char *vk_strtok_r(char *str, const char *delim, char **save_str)
+{
+ if(!str)
+ {
+ if(!*save_str)
+ return NULL;
+
+ str = (*save_str) + 1;
+ }
+ *save_str = strpbrk(str, delim);
+
+ if (*save_str)
+ **save_str = '\0';
+
+ return str;
+}
+
+static int vk_init(struct ev *e)
+{
+ char vk_path[PATH_MAX] = "/sys/board_properties/virtualkeys.";
+ char vks[2048], *ts = NULL;
+ ssize_t len;
+ int vk_fd;
+ int i;
+
+ e->vk_count = 0;
+
+ len = strlen(vk_path);
+ len = ioctl(e->fd->fd, EVIOCGNAME(sizeof(e->deviceName)), e->deviceName);
+ if (len <= 0)
+ {
+ printf("Unable to query event object.\n");
+ return -1;
+ }
+#ifdef _EVENT_LOGGING
+ printf("Event object: %s\n", e->deviceName);
+#endif
+
+#ifdef WHITELIST_INPUT
+ if (strcmp(e->deviceName, EXPAND(WHITELIST_INPUT)) != 0)
+ {
+ e->ignored = 1;
+ }
+#else
+#ifndef TW_INPUT_BLACKLIST
+ // Blacklist these "input" devices
+ if (strcmp(e->deviceName, "bma250") == 0 || strcmp(e->deviceName, "bma150") == 0)
+ {
+ printf("blacklisting %s input device\n", e->deviceName);
+ e->ignored = 1;
+ }
+#else
+ char* bl = strdup(EXPAND(TW_INPUT_BLACKLIST));
+ char* blacklist = strtok(bl, "\n");
+
+ while (blacklist != NULL) {
+ if (strcmp(e->deviceName, blacklist) == 0) {
+ printf("blacklisting %s input device\n", blacklist);
+ e->ignored = 1;
+ }
+ blacklist = strtok(NULL, "\n");
+ }
+ free(bl);
+#endif
+#endif
+
+ strcat(vk_path, e->deviceName);
+
+ // Some devices split the keys from the touchscreen
+ e->vk_count = 0;
+ vk_fd = open(vk_path, O_RDONLY);
+ if (vk_fd >= 0)
+ {
+ len = read(vk_fd, vks, sizeof(vks)-1);
+ close(vk_fd);
+ if (len <= 0)
+ return -1;
+
+ vks[len] = '\0';
+
+ /* Parse a line like:
+ keytype:keycode:centerx:centery:width:height:keytype2:keycode2:centerx2:...
+ */
+ for (ts = vks, e->vk_count = 1; *ts; ++ts) {
+ if (*ts == ':')
+ ++e->vk_count;
+ }
+
+ if (e->vk_count % 6) {
+ printf("minui: %s is %d %% 6\n", vk_path, e->vk_count % 6);
+ }
+ e->vk_count /= 6;
+ if (e->vk_count <= 0)
+ return -1;
+
+ e->down = DOWN_NOT;
+ }
+
+ ioctl(e->fd->fd, EVIOCGABS(ABS_X), &e->p.xi);
+ ioctl(e->fd->fd, EVIOCGABS(ABS_Y), &e->p.yi);
+ e->p.synced = 0;
+#ifdef _EVENT_LOGGING
+ printf("EV: ST minX: %d maxX: %d minY: %d maxY: %d\n", e->p.xi.minimum, e->p.xi.maximum, e->p.yi.minimum, e->p.yi.maximum);
+#endif
+
+ ioctl(e->fd->fd, EVIOCGABS(ABS_MT_POSITION_X), &e->mt_p.xi);
+ ioctl(e->fd->fd, EVIOCGABS(ABS_MT_POSITION_Y), &e->mt_p.yi);
+ e->mt_p.synced = 0;
+#ifdef _EVENT_LOGGING
+ printf("EV: MT minX: %d maxX: %d minY: %d maxY: %d\n", e->mt_p.xi.minimum, e->mt_p.xi.maximum, e->mt_p.yi.minimum, e->mt_p.yi.maximum);
+#endif
+
+ e->vks = (virtualkey *)malloc(sizeof(*e->vks) * e->vk_count);
+
+ for (i = 0; i < e->vk_count; ++i) {
+ char *token[6];
+ int j;
+
+ for (j = 0; j < 6; ++j) {
+ token[j] = vk_strtok_r((i||j)?NULL:vks, ":", &ts);
+ }
+
+ if (strcmp(token[0], "0x01") != 0) {
+ /* Java does string compare, so we do too. */
+ printf("minui: %s: ignoring unknown virtual key type %s\n", vk_path, token[0]);
+ continue;
+ }
+
+ e->vks[i].scancode = strtol(token[1], NULL, 0);
+ e->vks[i].centerx = strtol(token[2], NULL, 0);
+ e->vks[i].centery = strtol(token[3], NULL, 0);
+ e->vks[i].width = strtol(token[4], NULL, 0);
+ e->vks[i].height = strtol(token[5], NULL, 0);
+ }
+
+ return 0;
+}
+
+#define BITS_PER_LONG (sizeof(long) * 8)
+#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
+#define OFF(x) ((x)%BITS_PER_LONG)
+#define LONG(x) ((x)/BITS_PER_LONG)
+#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
+
+// Check for EV_REL (REL_X and REL_Y) and, because touchscreens can have those too,
+// check also for EV_KEY (BTN_LEFT and BTN_RIGHT)
+static void check_mouse(int fd)
+{
+ if(has_mouse)
+ return;
+
+ unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
+ memset(bit, 0, sizeof(bit));
+ ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
+
+ if(!test_bit(EV_REL, bit[0]) || !test_bit(EV_KEY, bit[0]))
+ return;
+
+ ioctl(fd, EVIOCGBIT(EV_REL, KEY_MAX), bit[EV_REL]);
+ if(!test_bit(REL_X, bit[EV_REL]) || !test_bit(REL_Y, bit[EV_REL]))
+ return;
+
+ ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]);
+ if(!test_bit(BTN_LEFT, bit[EV_KEY]) || !test_bit(BTN_RIGHT, bit[EV_KEY]))
+ return;
+
+ has_mouse = 1;
+}
+
+int ev_has_mouse(void)
+{
+ return has_mouse;
+}
+
+int ev_init(void)
+{
+ DIR *dir;
+ struct dirent *de;
+ int fd;
+
+ has_mouse = 0;
+
+ dir = opendir("/dev/input");
+ if(dir != 0) {
+ while((de = readdir(dir))) {
+// fprintf(stderr,"/dev/input/%s\n", de->d_name);
+ if(strncmp(de->d_name,"event",5)) continue;
+ fd = openat(dirfd(dir), de->d_name, O_RDONLY);
+ if(fd < 0) continue;
+
+ ev_fds[ev_count].fd = fd;
+ ev_fds[ev_count].events = POLLIN;
+ evs[ev_count].fd = &ev_fds[ev_count];
+
+ /* Load virtualkeys if there are any */
+ vk_init(&evs[ev_count]);
+
+ check_mouse(fd);
+
+ ev_count++;
+ if(ev_count == MAX_DEVICES) break;
+ }
+ closedir(dir);
+ }
+
+ struct stat st;
+ if(stat("/dev/input", &st) >= 0)
+ lastInputMTime = st.st_mtime;
+ gettimeofday(&lastInputStat, NULL);
+
+ return 0;
+}
+
+void ev_exit(void)
+{
+ while (ev_count-- > 0) {
+ if (evs[ev_count].vk_count) {
+ free(evs[ev_count].vks);
+ evs[ev_count].vk_count = 0;
+ }
+ close(ev_fds[ev_count].fd);
+ }
+ ev_count = 0;
+}
+
+static int vk_inside_display(__s32 value, struct input_absinfo *info, int screen_size)
+{
+ int screen_pos;
+
+ if (info->minimum == info->maximum)
+ return 0;
+
+ screen_pos = (value - info->minimum) * (screen_size - 1) / (info->maximum - info->minimum);
+ return (screen_pos >= 0 && screen_pos < screen_size);
+}
+
+static int vk_tp_to_screen(struct position *p, int *x, int *y)
+{
+ if (p->xi.minimum == p->xi.maximum || p->yi.minimum == p->yi.maximum)
+ {
+ // In this case, we assume the screen dimensions are the same.
+ *x = p->x;
+ *y = p->y;
+ return 0;
+ }
+
+#ifdef _EVENT_LOGGING
+ printf("EV: p->x=%d x-range=%d,%d fb-width=%d\n", p->x, p->xi.minimum, p->xi.maximum, gr_fb_width());
+#endif
+
+#ifndef RECOVERY_TOUCHSCREEN_SWAP_XY
+ int fb_width = gr_fb_width();
+ int fb_height = gr_fb_height();
+#else
+ // We need to swap the scaling sizes, too
+ int fb_width = gr_fb_height();
+ int fb_height = gr_fb_width();
+#endif
+
+ *x = (p->x - p->xi.minimum) * (fb_width - 1) / (p->xi.maximum - p->xi.minimum);
+ *y = (p->y - p->yi.minimum) * (fb_height - 1) / (p->yi.maximum - p->yi.minimum);
+
+ if (*x >= 0 && *x < fb_width &&
+ *y >= 0 && *y < fb_height)
+ {
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Translate a virtual key in to a real key event, if needed */
+/* Returns non-zero when the event should be consumed */
+static int vk_modify(struct ev *e, struct input_event *ev)
+{
+ static int downX = -1, downY = -1;
+ static int discard = 0;
+ static int last_virt_key = 0;
+ static int lastWasSynReport = 0;
+ static int touchReleaseOnNextSynReport = 0;
+ static int use_tracking_id_negative_as_touch_release = 0; // On some devices, type: 3 code: 39 value: -1, aka EV_ABS ABS_MT_TRACKING_ID -1 indicates a true touch release
+ int i;
+ int x, y;
+
+ // This is used to ditch useless event handlers, like an accelerometer
+ if (e->ignored) return 1;
+
+ if (ev->type == EV_REL && ev->code == REL_Z)
+ {
+ // This appears to be an accelerometer or another strange input device. It's not the touchscreen.
+#ifdef _EVENT_LOGGING
+ printf("EV: Device disabled due to non-touchscreen messages.\n");
+#endif
+ e->ignored = 1;
+ return 1;
+ }
+
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => type: %x code: %x value: %d\n", e->deviceName, ev->type, ev->code, ev->value);
+#endif
+
+ // Handle keyboard events, value of 1 indicates key down, 0 indicates key up
+ if (ev->type == EV_KEY) {
+ return 0;
+ }
+
+ if (ev->type == EV_ABS) {
+ switch (ev->code) {
+
+ case ABS_X: //00
+ e->p.synced |= 0x01;
+ e->p.x = ev->value;
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_X %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_Y: //01
+ e->p.synced |= 0x02;
+ e->p.y = ev->value;
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_Y %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_MT_POSITION: //2a
+ e->mt_p.synced = 0x03;
+ if (ev->value == (1 << 31))
+ {
+#ifndef TW_IGNORE_MT_POSITION_0
+ e->mt_p.x = 0;
+ e->mt_p.y = 0;
+ lastWasSynReport = 1;
+#endif
+#ifdef _EVENT_LOGGING
+#ifndef TW_IGNORE_MT_POSITION_0
+ printf("EV: %s => EV_ABS ABS_MT_POSITION %d, set x and y to 0 and lastWasSynReport to 1\n", e->deviceName, ev->value);
+#else
+ printf("Ignoring ABS_MT_POSITION 0\n", e->deviceName, ev->value);
+#endif
+#endif
+ }
+ else
+ {
+ lastWasSynReport = 0;
+ e->mt_p.x = (ev->value & 0x7FFF0000) >> 16;
+ e->mt_p.y = (ev->value & 0xFFFF);
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_POSITION %d, set x: %d and y: %d and lastWasSynReport to 0\n", e->deviceName, ev->value, (ev->value & 0x7FFF0000) >> 16, (ev->value & 0xFFFF));
+#endif
+ }
+ break;
+
+ case ABS_MT_TOUCH_MAJOR: //30
+ if (ev->value == 0)
+ {
+#ifndef TW_IGNORE_MAJOR_AXIS_0
+ // We're in a touch release, although some devices will still send positions as well
+ e->mt_p.x = 0;
+ e->mt_p.y = 0;
+ touchReleaseOnNextSynReport = 1;
+#endif
+ }
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_TOUCH_MAJOR %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_MT_PRESSURE: //3a
+ if (ev->value == 0)
+ {
+ // We're in a touch release, although some devices will still send positions as well
+ e->mt_p.x = 0;
+ e->mt_p.y = 0;
+ touchReleaseOnNextSynReport = 1;
+ }
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_PRESSURE %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_MT_POSITION_X: //35
+ e->mt_p.synced |= 0x01;
+ e->mt_p.x = ev->value;
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_POSITION_X %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_MT_POSITION_Y: //36
+ e->mt_p.synced |= 0x02;
+ e->mt_p.y = ev->value;
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_POSITION_Y %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_MT_TOUCH_MINOR: //31
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_TOUCH_MINOR %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_MT_WIDTH_MAJOR: //32
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_WIDTH_MAJOR %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_MT_WIDTH_MINOR: //33
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_WIDTH_MINOR %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+ case ABS_MT_TRACKING_ID: //39
+#ifdef TW_IGNORE_ABS_MT_TRACKING_ID
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_TRACKING_ID %d ignored\n", e->deviceName, ev->value);
+#endif
+ return 1;
+#endif
+ if (ev->value < 0) {
+ e->mt_p.x = 0;
+ e->mt_p.y = 0;
+ touchReleaseOnNextSynReport = 2;
+ use_tracking_id_negative_as_touch_release = 1;
+#ifdef _EVENT_LOGGING
+ if (use_tracking_id_negative_as_touch_release)
+ printf("using ABS_MT_TRACKING_ID value -1 to indicate touch releases\n");
+#endif
+ }
+#ifdef _EVENT_LOGGING
+ printf("EV: %s => EV_ABS ABS_MT_TRACKING_ID %d\n", e->deviceName, ev->value);
+#endif
+ break;
+
+#ifdef _EVENT_LOGGING
+ // These are for touch logging purposes only
+ case ABS_MT_ORIENTATION: //34
+ printf("EV: %s => EV_ABS ABS_MT_ORIENTATION %d\n", e->deviceName, ev->value);
+ return 1;
+ break;
+
+ case ABS_MT_TOOL_TYPE: //37
+ LOGI("EV: %s => EV_ABS ABS_MT_TOOL_TYPE %d\n", e->deviceName, ev->value);
+ return 1;
+ break;
+
+ case ABS_MT_BLOB_ID: //38
+ printf("EV: %s => EV_ABS ABS_MT_BLOB_ID %d\n", e->deviceName, ev->value);
+ return 1;
+ break;
+
+ case ABS_MT_DISTANCE: //3b
+ printf("EV: %s => EV_ABS ABS_MT_DISTANCE %d\n", e->deviceName, ev->value);
+ return 1;
+ break;
+ case ABS_MT_SLOT:
+ printf("EV: %s => ABS_MT_SLOT %d\n", e->deviceName, ev->value);
+ return 1;
+ break;
+#endif
+
+ default:
+ // This is an unhandled message, just skip it
+ return 1;
+ }
+
+ if (ev->code != ABS_MT_POSITION)
+ {
+ lastWasSynReport = 0;
+ return 1;
+ }
+ }
+
+ // Check if we should ignore the message
+ if (ev->code != ABS_MT_POSITION && (ev->type != EV_SYN || (ev->code != SYN_REPORT && ev->code != SYN_MT_REPORT)))
+ {
+ lastWasSynReport = 0;
+ return 0;
+ }
+
+#ifdef _EVENT_LOGGING
+ if (ev->type == EV_SYN && ev->code == SYN_REPORT) printf("EV: %s => EV_SYN SYN_REPORT\n", e->deviceName);
+ if (ev->type == EV_SYN && ev->code == SYN_MT_REPORT) printf("EV: %s => EV_SYN SYN_MT_REPORT\n", e->deviceName);
+#endif
+
+ // Discard the MT versions
+ if (ev->code == SYN_MT_REPORT) return 0;
+
+ if (((lastWasSynReport == 1 || touchReleaseOnNextSynReport == 1) && !use_tracking_id_negative_as_touch_release) || (use_tracking_id_negative_as_touch_release && touchReleaseOnNextSynReport == 2))
+ {
+ // Reset the value
+ touchReleaseOnNextSynReport = 0;
+
+ // We are a finger-up state
+ if (!discard)
+ {
+ // Report the key up
+ ev->type = EV_ABS;
+ ev->code = 0;
+ ev->value = (downX << 16) | downY;
+ }
+ downX = -1;
+ downY = -1;
+ if (discard)
+ {
+ discard = 0;
+
+ // Send the keyUp event
+ ev->type = EV_KEY;
+ ev->code = last_virt_key;
+ ev->value = 0;
+ }
+ return 0;
+ }
+ lastWasSynReport = 1;
+
+ // Retrieve where the x,y position is
+ if (e->p.synced & 0x03)
+ {
+ vk_tp_to_screen(&e->p, &x, &y);
+ }
+ else if (e->mt_p.synced & 0x03)
+ {
+ vk_tp_to_screen(&e->mt_p, &x, &y);
+ }
+ else
+ {
+ // We don't have useful information to convey
+ return 1;
+ }
+
+#ifdef RECOVERY_TOUCHSCREEN_SWAP_XY
+ x ^= y;
+ y ^= x;
+ x ^= y;
+#endif
+#ifdef RECOVERY_TOUCHSCREEN_FLIP_X
+ x = gr_fb_width() - x;
+#endif
+#ifdef RECOVERY_TOUCHSCREEN_FLIP_Y
+ y = gr_fb_height() - y;
+#endif
+
+#ifdef _EVENT_LOGGING
+ printf("EV: x: %d y: %d\n", x, y);
+#endif
+
+ // Clear the current sync states
+ e->p.synced = e->mt_p.synced = 0;
+
+ // If we have nothing useful to report, skip it
+ if (x == -1 || y == -1) return 1;
+
+ // Special case, we'll ignore touches on 0,0 because it usually means
+ // that we received extra data after our last sync and x and y were
+ // reset to 0. We should not be using 0,0 anyway.
+ if (x == 0 && y == 0)
+ return 1;
+
+ // On first touch, see if we're at a virtual key
+ if (downX == -1)
+ {
+ // Attempt mapping to virtual key
+ for (i = 0; i < e->vk_count; ++i)
+ {
+ int xd = ABS(e->vks[i].centerx - x);
+ int yd = ABS(e->vks[i].centery - y);
+
+ if (xd < e->vks[i].width/2 && yd < e->vks[i].height/2)
+ {
+ ev->type = EV_KEY;
+ ev->code = e->vks[i].scancode;
+ ev->value = 1;
+
+ last_virt_key = e->vks[i].scancode;
+
+ vibrate(VIBRATOR_TIME_MS);
+
+ // Mark that all further movement until lift is discard,
+ // and make sure we don't come back into this area
+ discard = 1;
+ downX = 0;
+ return 0;
+ }
+ }
+ }
+
+ // If we were originally a button press, discard this event
+ if (discard)
+ {
+ return 1;
+ }
+
+ // Record where we started the touch for deciding if this is a key or a scroll
+ downX = x;
+ downY = y;
+
+ ev->type = EV_ABS;
+ ev->code = 1;
+ ev->value = (x << 16) | y;
+ return 0;
+}
+
+int ev_get(struct input_event *ev, int timeout_ms)
+{
+ int r;
+ unsigned n;
+ struct timeval curr;
+
+ gettimeofday(&curr, NULL);
+ if(curr.tv_sec - lastInputStat.tv_sec >= 2)
+ {
+ struct stat st;
+ stat("/dev/input", &st);
+ if (st.st_mtime > lastInputMTime)
+ {
+ printf("Reloading input devices\n");
+ ev_exit();
+ ev_init();
+ lastInputMTime = st.st_mtime;
+ }
+ lastInputStat = curr;
+ }
+
+ r = poll(ev_fds, ev_count, timeout_ms);
+
+ if(r > 0) {
+ for(n = 0; n < ev_count; n++) {
+ if(ev_fds[n].revents & POLLIN) {
+ r = read(ev_fds[n].fd, ev, sizeof(*ev));
+ if(r == sizeof(*ev)) {
+ if (!vk_modify(&evs[n], ev))
+ return 0;
+ }
+ }
+ }
+ return -1;
+ }
+
+ return -2;
+}
+
+int ev_wait(int timeout)
+{
+ return -1;
+}
+
+void ev_dispatch(void)
+{
+ return;
+}
+
+int ev_get_input(int fd, short revents, struct input_event *ev)
+{
+ return -1;
+}