new signal markings, new timing numbers for LatLon reception (doesn't seem to be working on dump1090 end though), basic plane velocity animation

Former-commit-id: 836f1c78546ced2ffd950e6b8c1073d71b42f676
Former-commit-id: 3c5cc3b55cb0f427906e73f8939e273bf8c4090b

draw.c

@@ -250,7 +250,7 @@ void drawTrail(double *oldDx, double *oldDy, double *oldHeading, time_t * oldSee
 
         uint8_t colorVal = (uint8_t)floor(255.0 * age);
                    
-        thickLineRGBA(appData.renderer, prevX, prevY, currentX, currentY, 4 * appData.screen_uiscale, colorVal, colorVal, colorVal, 127);                    
+        //thickLineRGBA(appData.renderer, prevX, prevY, currentX, currentY, 4 * appData.screen_uiscale, colorVal, colorVal, colorVal, 127);                    
 
         //tick marks
 
@@ -268,7 +268,7 @@ void drawTrail(double *oldDx, double *oldDy, double *oldHeading, time_t * oldSee
 
         int x1, y1, x2, y2;
 
-        int cross_size = 8 * appData.screen_uiscale;
+        int cross_size = 5 * appData.screen_uiscale;
 
         //forward cross
         x1 = currentX + round(-cross_size*vec[0]);
@@ -351,6 +351,7 @@ void drawGeography() {
 }
 
 void drawPlaneText(struct planeObj *p, int x, int y) {
+
     drawStringBG(p->flight, x + 5, y + appData.mapFontHeight, appData.mapBoldFont, white, black);                    
 
     char alt[10] = " ";
@@ -370,39 +371,59 @@ void drawPlaneText(struct planeObj *p, int x, int y) {
     drawStringBG(speed, x + 5, y + 3*appData.mapFontHeight, appData.mapFont, grey, black);                           
 }
 
+void drawSignalMarks(struct planeObj *p, int x, int y) {
+    unsigned char * pSig       = p->signalLevel;
+    unsigned int signalAverage = (pSig[0] + pSig[1] + pSig[2] + pSig[3] + 
+                                              pSig[4] + pSig[5] + pSig[6] + pSig[7] + 3) >> 3; 
+
+    SDL_Color barColor = signalToColor(signalAverage);
+
+    Uint8 seenFade = (Uint8) (255.0 - (mstime() - p->msSeen) / 4.0);
+
+    circleRGBA(appData.renderer, x + 5 * appData.screen_uiscale, y + 10 * appData.screen_uiscale, 2 * appData.screen_uiscale, barColor.r, barColor.g, barColor.b, seenFade);
+
+    seenFade = (Uint8) (255.0 - (mstime() - p->msSeenLatLon) / 4.0);
+
+    hlineRGBA(appData.renderer, x + 10 * appData.screen_uiscale, x + 14 * appData.screen_uiscale, y + 10 * appData.screen_uiscale, barColor.r, barColor.g, barColor.b, seenFade);
+    vlineRGBA(appData.renderer, x + 12 * appData.screen_uiscale, y + 8 * appData.screen_uiscale, y + 12 * appData.screen_uiscale, barColor.r, barColor.g, barColor.b, seenFade);
+}
+
 void drawMap() {
     struct planeObj *p = planes;
     time_t now = time(NULL);
-
+    SDL_Color planeColor;
     drawGeography();
 
     drawGrid(); 
 
+    //draw all trails first so they don't cover up planes and text
+
+    while(p) {
+        if ((now - p->seen) < Modes.interactive_display_ttl) {
+            drawTrail(p->oldLon, p->oldLat, p->oldHeading, p->oldSeen, p->oldIdx);
+        }
+        p = p->next;
+    }
+
+    p = planes;
+
     while(p) {
         if ((now - p->seen) < Modes.interactive_display_ttl) {
             if (p->lon && p->lat) {
 
-                unsigned char * pSig       = p->signalLevel;
-                unsigned int signalAverage = (pSig[0] + pSig[1] + pSig[2] + pSig[3] + 
-                                              pSig[4] + pSig[5] + pSig[6] + pSig[7] + 3) >> 3; 
 
-                drawTrail(p->oldLon, p->oldLat, p->oldHeading, p->oldSeen, p->oldIdx);
-
-                int colorIdx;
-                if((int)(now - p->seen) > DISPLAY_ACTIVE) {
-                    colorIdx = -1;
-                } else {
-                    colorIdx = signalAverage;
-                }
-
-                SDL_Color planeColor = signalToColor(colorIdx);
                 int x, y;
-                //screenCoords(&x, &y, p->dx, p->dy);
 
                 double dx, dy;
                 pxFromLonLat(&dx, &dy, p->lon, p->lat);
                 screenCoords(&x, &y, dx, dy);
 
+                if((int)(now - p->seen) > DISPLAY_ACTIVE) {
+                    planeColor = grey;
+                } else {
+                    planeColor = white;
+                }
+
                 if(outOfBounds(x,y)) {
                     int outx, outy;
                     drawPlaneOffMap(x, y, &outx, &outy, planeColor); 
@@ -419,11 +440,28 @@ void drawMap() {
                     circleRGBA(appData.renderer, x, y, 500 - age_ms, 255,255, 255, (uint8_t)(255.0 * age_ms / 500.0));   
                 } else {
                     if(MODES_ACFLAGS_HEADING_VALID) {
-                        drawPlaneHeading(x, y,p->track, planeColor);
+                        int usex = x;
+                        int usey = y;
 
-                        drawPlaneText(p, x, y); 
+                        if(p->seenLatLon > p->oldSeen[p->oldIdx]) {
+                            int oldx, oldy;
+                            int idx = (p->oldIdx - 1) % TRAIL_LENGTH;
+
+                            pxFromLonLat(&dx, &dy, p->oldLon[idx], p->oldLat[idx]);
+                            screenCoords(&oldx, &oldy, dx, dy);
+
+                            double velx = (x - oldx) / (1000.0 * (p->seenLatLon - p->oldSeen[idx]));
+                            double vely = (y - oldy) / (1000.0 * (p->seenLatLon - p->oldSeen[idx]));
+
+                            usex = x + (mstime() - p->msSeenLatLon) * velx;
+                            usey = y + (mstime() - p->msSeenLatLon) * vely;
+                        } 
+
+                        drawPlaneHeading(usex, usey, p->track, planeColor);
+                        drawSignalMarks(p, usex, usey);
+                        drawPlaneText(p, usex, usey); 
+                        lineRGBA(appData.renderer, usex, usey, usex, usey + 4*appData.mapFontHeight, grey.r, grey.g, grey.b, SDL_ALPHA_OPAQUE);
                         
-                        lineRGBA(appData.renderer, x, y, x, y + 4*appData.mapFontHeight, grey.r, grey.g, grey.b, SDL_ALPHA_OPAQUE);
                     } else {
                         drawPlane(x, y, planeColor);
                     }  

draw.o.REMOVED.git-id

@@ -1 +1 @@
-fda1ba88522832395454de10738083bda8677b29
+3329d96b9e8da09d38ac06e8cfcb2c9227d0593e

input.o.REMOVED.git-id

@@ -1 +1 @@
-ec05e242afe12d9af07fceff41a9689f66237a76
+2c4ed2ab46ef6a542479d8c3c9ea7de7298325c1

planeObj.c

@@ -1,6 +1,16 @@
 #include "structs.h"
 #include "dump1090.h"
 
+static uint64_t mstime(void) {
+    struct timeval tv;
+    uint64_t mst;
+
+    gettimeofday(&tv, NULL);
+    mst = ((uint64_t)tv.tv_sec)*1000;
+    mst += tv.tv_usec/1000;
+    return mst;
+}
+
 struct planeObj *findPlaneObj(uint32_t addr) {
     struct planeObj *p = planes;
 
@@ -57,12 +67,12 @@ void updatePlanes() {
         }
 
         p->seen = a->seen;            
+        p->msSeen = mstime();
 
         if((p->seen - p->prev_seen) > 0) {
                 p->messageRate = 1.0 / (double)(p->seen - p->prev_seen);
         }
 
-
         memcpy(p->flight, a->flight, sizeof(p->flight));
         memcpy(p->signalLevel, a->signalLevel, sizeof(p->signalLevel));
 
@@ -73,7 +83,8 @@ void updatePlanes() {
         p->lon = a->lon;
         p->lat = a->lat;
 
-        if(time(NULL) - p->oldSeen[p->oldIdx] > TRAIL_TTL_STEP) {
+        if(p->seenLatLon < a->seenLatLon) {
+            p->msSeenLatLon = mstime();
             
             p->oldIdx = (p->oldIdx+1) % 32;
 
@@ -82,9 +93,11 @@ void updatePlanes() {
 
             p->oldHeading[p->oldIdx] = p->track;
 
-            p->oldSeen[p->oldIdx] = p->seen;
+            p->oldSeen[p->oldIdx] = p->seenLatLon;
         }
         
+        p->seenLatLon = a->seenLatLon;
+    
         a = a->next;
     }
 

status.o.REMOVED.git-id

@@ -1 +1 @@
-7626e2885663816ca0afea4b99f4464dbaa595f7
+e28b70359d329c69b61d0da196a74552ba4f6f8f

structs.h

@@ -56,6 +56,7 @@ struct planeObj {
     int           	track;          // Angle of flight
     int           	vert_rate;      // Vertical rate.
     time_t        	seen;           // Time at which the last packet was received
+    time_t        	seenLatLon;           // Time at which the last packet was received
     time_t			prev_seen;
     double        	lat, lon;       // Coordinated obtained from CPR encoded data
     
@@ -66,6 +67,8 @@ struct planeObj {
     time_t        	oldSeen[TRAIL_LENGTH];
     uint8_t         oldIdx; 
     uint64_t      	created;
+    uint64_t		msSeen;
+    uint64_t		msSeenLatLon;
     int			live;
 
     struct planeObj *next;        // Next aircraft in our linked list

view1090.REMOVED.git-id

@@ -1 +1 @@
-68fb7031fcec17eff186d2abd88b6bf9f0726707
+ae65e041076e061971bc7b3d686bee6c5f471abd

view1090.o.REMOVED.git-id

@@ -1 +1 @@
-56d4666551743e2bb5da41ccce658ff2be58cdf2
+566004a350fc256a0bc6ab112a14b09c91e6cc18