geography renders to a seprate texture, only updates when moved

Former-commit-id: 8f3b9d2977 [formerly f24714e0276678698dffbf4270fb73c16c9a872f] [formerly 8c6ec13e7e07eede486b4d804517de3212532216]
Former-commit-id: 09e11860daedfa3c625b44b19c55d375319932fe
Former-commit-id: 5ffce6f3e593acf6472ed5f540a871b0219d610b

defs.h

@@ -15,6 +15,8 @@
 #define DISPLAY_ACTIVE   30 
 #define TRAIL_TTL_STEP   2
 
+#define	MIN_MAP_FEATURE 2
+
 #define	FRAMETIME 33
 
 #define PAD 5

draw.c

@@ -529,7 +529,7 @@ void drawPolys(QuadTree *tree, double screen_lat_min, double screen_lat_max, dou
             }
 
 
-            if((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1) < 100){
+            if((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1) < MIN_MAP_FEATURE){
                 currentPoint = currentPoint->next;
                 continue;
             }
@@ -538,7 +538,7 @@ void drawPolys(QuadTree *tree, double screen_lat_min, double screen_lat_max, dou
     
             double factor = 1.0 - (d1+d2) / (3* appData.maxDist * appData.maxDist);
 
-            SDL_Color lineColor = lerpColor(blue, purple, factor); 
+            SDL_Color lineColor = lerpColor(purple, blue, factor); 
 
             lineRGBA(appData.renderer, x1, y1, x2, y2, lineColor.r, lineColor.g, lineColor.b, 255);
 
@@ -865,17 +865,10 @@ void resolveLabelConflicts() {
 }
 
 
-void drawMap() {
+void drawPlanes() {
     struct planeObj *p = planes;
     time_t now = time(NULL);
     SDL_Color planeColor;
-    drawGeography();
-
-    drawScaleBars();     
-
-    for(int i = 0; i < 4; i++) {
-        resolveLabelConflicts();
-    }
 
     //draw all trails first so they don't cover up planes and text
 
@@ -931,10 +924,14 @@ void drawMap() {
                         }
 
                         if(p == selectedPlane) {
-                            appData.centerLon += 0.1 * (p->lon - appData.centerLon);
-                            appData.centerLat += 0.1 * (p->lat - appData.centerLat);
-                 
 
+                            if(fabs(p->lon - appData.centerLon) > 0.0001 || fabs(p->lat - appData.centerLat) > .0001) {
+                                appData.centerLon += 0.1 * (p->lon - appData.centerLon);
+                                appData.centerLat += 0.1 * (p->lat - appData.centerLat);
+                     
+                                appData.mapMoved = 1;    
+                            }
+                            
                             thickLineRGBA(appData.renderer, x - 40, y - 40, x - 10, y - 40, 4, pink.r, pink.g, pink.b, 255);
                             thickLineRGBA(appData.renderer, x - 40, y - 40, x - 40, y - 10, 4, pink.r, pink.g, pink.b, 255);
 
@@ -1004,26 +1001,54 @@ void drawMap() {
 //
 
 void draw() {
-
+    uint64_t drawStartTime = mstime();
-    if ((mstime() - appData.lastFrameTime) < FRAMETIME) {
+    
-        return;
-    }
-
-    appData.lastFrameTime = mstime();
-
     updatePlanes();
 
     updateStatus();
 
-    SDL_SetRenderDrawColor( appData.renderer, 0, 15, 30, 0);
+    if(appData.mapMoved) {
+        SDL_SetRenderTarget(appData.renderer, appData.mapTexture);
+        SDL_SetRenderDrawColor(appData.renderer, 0, 0, 0, 0);
+        SDL_RenderClear(appData.renderer);
+
+        drawGeography();
+        drawScaleBars();
+
+        SDL_SetRenderTarget(appData.renderer, NULL );   
+
+        appData.mapMoved = 0; 
+    }
+    
+    for(int i = 0; i < 4; i++) {
+        resolveLabelConflicts();
+    }
+
+    //SDL_SetRenderDrawColor( appData.renderer, 0, 15, 30, 0);
+    SDL_SetRenderDrawColor(appData.renderer, 0, 0, 0, 0);
 
     SDL_RenderClear(appData.renderer);
 
-    drawMap();  
+    SDL_RenderCopy(appData.renderer, appData.mapTexture, NULL, NULL);
+
+    drawPlanes();  
     drawStatus();
+    
     if(appData.showList) {
        drawList(0);
     }
 
-    SDL_RenderPresent(appData.renderer);    
+    char fps[10] = " ";
+    snprintf(fps,10," %ffps", 1000.0 / (mstime() - appData.lastFrameTime));
+    drawStringBG(fps, 0,0, appData.mapFont, grey, black);  
+
+
+    SDL_RenderPresent(appData.renderer);  
+
+
+    appData.lastFrameTime = mstime(); 
+
+    if ((mstime() - drawStartTime) < FRAMETIME) {
+        usleep(1000 * (FRAMETIME - (mstime() - drawStartTime)));
+    } 
 }

draw.o.REMOVED.git-id

@@ -1 +1 @@
-d08aaa37cf2b39ef11671ed4f318ae82fcf0c1dd
+e35f478e482bb67eed7951d8c622b7fc5ad06aa7

init.c

@@ -37,11 +37,13 @@ void init(char *title) {
 
     appData.window =  SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, appData.screen_width, appData.screen_height, flags);		
 	appData.renderer = SDL_CreateRenderer(appData.window, -1, 0);
-	appData.texture = SDL_CreateTexture(appData.renderer,
+	appData.mapTexture = SDL_CreateTexture(appData.renderer,
                                SDL_PIXELFORMAT_ARGB8888,
-                               SDL_TEXTUREACCESS_STREAMING,
+                               SDL_TEXTUREACCESS_TARGET,
                                appData.screen_width, appData.screen_height);
 
+	appData.mapMoved = 1;
+
 	if(appData.fullscreen) {
 		//\SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");  // make the scaled rendering look smoother.
 		SDL_RenderSetLogicalSize(appData.renderer, appData.screen_width, appData.screen_height);

input.c

@@ -47,10 +47,12 @@ void getInput()
 			case SDL_MOUSEWHEEL:
 
 				appData.maxDist *= 1.0 + event.wheel.y / 10.0;
+				appData.mapMoved = 1;
 				break;
 
 			case SDL_MULTIGESTURE:
 				appData.maxDist /=1.0 + 4.0*event.mgesture.dDist;
+				appData.mapMoved = 1;
 				break;
 
 			case SDL_FINGERMOTION:;
@@ -74,6 +76,7 @@ void getInput()
 				appData.centerLon += outLon;
 				appData.centerLat += outLat;
 
+				appData.mapMoved = 1;
 				break;
 
 

input.o.REMOVED.git-id

@@ -1 +1 @@
-71b217637379d15bac063de1731f31a46620dce5
+d4947b5d39abcf0073465f4b5683173294132874

status.o.REMOVED.git-id

@@ -1 +1 @@
-006a8fe10b2ac3777a05e5056d4166533ad2fae5
+9aa844df5159c2a246895c0eb2a306f53d0a36fd

structs.h

@@ -7,7 +7,7 @@ typedef struct AppData
 {
 	SDL_Window		*window;
 	SDL_Renderer	*renderer;
-	SDL_Texture 	*texture;
+	SDL_Texture 	*mapTexture;
 
 	TTF_Font		*mapFont;
 	TTF_Font		*mapBoldFont;	
@@ -43,6 +43,8 @@ typedef struct AppData
     int touchx;
     int touchy;
 
+    int mapMoved;
+
     uint64_t lastFrameTime;
 } AppData;
 

view1090.REMOVED.git-id

@@ -1 +1 @@
-607b9efc8cc81bbdd0c6f524632fc9b69ab1e244
+8796641d884a28c9d0b97396f099bd3333607849

view1090.c

@@ -358,7 +358,7 @@ int main(int argc, char **argv) {
         }
         modesReadFromClient(c,"",decodeBinMessage);
 
-        usleep(10000);
+        //usleep(10000);
     }
     
     // The user has stopped us, so close any socket we opened

view1090.o.REMOVED.git-id

@@ -1 +1 @@
-188de208d70a8a746cda5dd29c243ac3053a9c0c
+790297577270307a97648484360f0eeb3de83233