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viz1090/View.cpp
nathan 66385a328f testing startup time optimizations
2022-10-23 11:34:22 -07:00

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// viz1090, a vizualizer for dump1090 ADSB output
//
// Copyright (C) 2020, Nathan Matsuda <info@nathanmatsuda.com>
// Copyright (C) 2014, Malcolm Robb <Support@ATTAvionics.com>
// Copyright (C) 2012, Salvatore Sanfilippo <antirez at gmail dot com>
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
#include "SDL2/SDL2_rotozoom.h"
#include "SDL2/SDL2_gfxPrimitives.h"
#include "View.h"
#include "AircraftLabel.h"
#include <iostream>
#include <thread>
using fmilliseconds = std::chrono::duration<float, std::milli>;
using fseconds = std::chrono::duration<float>;
static std::chrono::high_resolution_clock::time_point now() {
return std::chrono::high_resolution_clock::now();
}
static float elapsed(std::chrono::high_resolution_clock::time_point ref) {
return (fmilliseconds {now() - ref}).count();
}
static float elapsed_s(std::chrono::high_resolution_clock::time_point ref) {
return (fseconds { now() - ref}).count();
}
static float clamp(float in, float min, float max) {
float out = in;
if(in < min) {
out = min;
}
if(in > max) {
out = max;
}
return out;
}
static void CROSSVP(float *v, float *u, float *w)
{
v[0] = u[1]*w[2] - u[2]*(w)[1];
v[1] = u[2]*w[0] - u[0]*(w)[2];
v[2] = u[0]*w[1] - u[1]*(w)[0];
}
SDL_Color setColor(uint8_t r, uint8_t g, uint8_t b) {
SDL_Color out;
out.r = r;
out.g = g;
out.b = b;
return out;
}
float lerp(float a, float b, float factor) {
if(factor > 1.0f) {
factor = 1.0f;
}
if(factor < 0.0f) {
factor = 0.0f;
}
return (1.0f - factor) * a + factor * b;
}
float lerpAngle(float a, float b, float factor) {
float diff = fabs(b - a);
if (diff > 180.0f)
{
if (b > a)
{
a += 360.0f;
}
else
{
b += 360.0f;
}
}
float value = (a + ((b - a) * factor));
if (value >= 0.0f && value <= 360.0f)
return value;
return fmod(value,360.0f);
}
SDL_Color lerpColor(SDL_Color aColor, SDL_Color bColor, float factor) {
if(factor > 1.0f) {
factor = 1.0f;
}
if(factor < 0.0f) {
factor = 0.0f;
}
SDL_Color out;
out.r = (1.0f - factor) * aColor.r + factor * bColor.r;
out.g = (1.0f - factor) * aColor.g + factor * bColor.g;
out.b = (1.0f - factor) * aColor.b + factor * bColor.b;
return out;
}
int View::screenDist(float d) {
float scale_factor = (screen_width > screen_height) ? screen_width : screen_height;
// return round(0.95 * scale_factor * 0.5 * fabs(d) / maxDist);
return round(scale_factor * 0.5 * fabs(d) / maxDist);
}
void View::pxFromLonLat(float *dx, float *dy, float lon, float lat) {
if(!lon || !lat) {
*dx = 0;
*dy = 0;
return;
}
// for accurate reprojection use the extra cos term
*dx = LATLONMULT * (lon - centerLon) * cos(((lat + centerLat)/2.0f) * M_PI / 180.0f);
*dy = LATLONMULT * (lat - centerLat);
}
void View::latLonFromScreenCoords(float *lat, float *lon, int x, int y) {
float scale_factor = (screen_width > screen_height) ? screen_width : screen_height;
float dx = maxDist * (x - (screen_width>>1)) / (0.95 * scale_factor * 0.5 );
float dy = maxDist * (y - (screen_height>>1)) / (0.95 * scale_factor * 0.5 );
*lat = 180.0f * dy / (6371.0 * M_PI) + centerLat;
*lon = 180.0 * dx / (cos(((*lat + centerLat)/2.0f) * M_PI / 180.0f) * 6371.0 * M_PI) + centerLon;
}
void View::screenCoords(int *outX, int *outY, float dx, float dy) {
*outX = (screen_width>>1) + ((dx>0) ? 1 : -1) * screenDist(dx);
*outY = (screen_height>>1) + ((dy>0) ? -1 : 1) * screenDist(dy);
}
int View::outOfBounds(int x, int y) {
return outOfBounds(x, y, 0, 0, screen_width, screen_height);
}
int View::outOfBounds(int x, int y, int left, int top, int right, int bottom) {
if(x < left || x >= right || y < top || y >= bottom ) {
return 1;
} else {
return 0;
}
}
//
// Fonts should probably go in Style
//
TTF_Font* View::loadFont(const char *name, int size)
{
TTF_Font *font = TTF_OpenFont(name, size);
if (font == NULL)
{
printf("Failed to open Font %s: %s\n", name, TTF_GetError());
exit(1);
}
return font;
}
void View::closeFont(TTF_Font *font)
{
if (font != NULL)
{
TTF_CloseFont(font);
}
}
void View::font_init() {
mapFont = loadFont("font/TerminusTTF-4.46.0.ttf", 12 * screen_uiscale);
mapBoldFont = loadFont("font/TerminusTTF-Bold-4.46.0.ttf", 12 * screen_uiscale);
listFont = loadFont("font/TerminusTTF-4.46.0.ttf", 12 * screen_uiscale);
messageFont = loadFont("font/TerminusTTF-Bold-4.46.0.ttf", 12 * screen_uiscale);
labelFont = loadFont("font/TerminusTTF-Bold-4.46.0.ttf", 12 * screen_uiscale);
mapFontWidth = 5 * screen_uiscale;
mapFontHeight = 12 * screen_uiscale;
messageFontWidth = 6 * screen_uiscale;
messageFontHeight = 12 * screen_uiscale;
labelFontWidth = 6 * screen_uiscale;
labelFontHeight = 12 * screen_uiscale;
}
//
// SDL Utils
//
void View::SDL_init() {
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
printf("Could not initialize SDL: %s\n", SDL_GetError());
exit(1);
}
if (TTF_Init() < 0) {
printf("Couldn't initialize SDL TTF: %s\n", SDL_GetError());
exit(1);
}
SDL_ShowCursor(SDL_DISABLE);
Uint32 flags = 0;
if(fullscreen) {
flags = flags | SDL_WINDOW_FULLSCREEN_DESKTOP;
}
if(screen_width == 0) {
SDL_DisplayMode DM;
SDL_GetCurrentDisplayMode(0, &DM);
screen_width = DM.w;
screen_height= DM.h;
}
window = SDL_CreateWindow("viz1090", SDL_WINDOWPOS_CENTERED_DISPLAY(screen_index), SDL_WINDOWPOS_CENTERED_DISPLAY(screen_index), screen_width, screen_height, flags);
renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
mapTexture = SDL_CreateTexture(renderer,
SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_TARGET,
screen_width, screen_height);
mapMoved = 1;
mapTargetLon = 0;
mapTargetLat = 0;
mapTargetMaxDist = 0;
if(fullscreen) {
//SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear"); // make the scaled rendering look smoother.
SDL_RenderSetLogicalSize(renderer, screen_width, screen_height);
}
}
//
// Status boxes -> move to separate class
//
void View::drawStatusBox(int *left, int *top, std::string label, std::string message, SDL_Color color) {
int labelWidth = (label.length() + ((label.length() > 0 ) ? 1 : 0)) * labelFontWidth;
int messageWidth = (message.length() + ((message.length() > 0 ) ? 1 : 0)) * messageFontWidth;
if(*left + labelWidth + messageWidth + PAD > screen_width) {
*left = PAD;
*top = *top - messageFontHeight - PAD;
}
// filled black background
if(messageWidth) {
roundedBoxRGBA(renderer, *left, *top, *left + labelWidth + messageWidth, *top + messageFontHeight, ROUND_RADIUS, style.buttonBackground.r, style.buttonBackground.g, style.buttonBackground.b, SDL_ALPHA_OPAQUE);
}
// filled label box
if(labelWidth) {
roundedBoxRGBA(renderer, *left, *top, *left + labelWidth, *top + messageFontHeight, ROUND_RADIUS,color.r, color.g, color.b, SDL_ALPHA_OPAQUE);
}
// outline message box
if(messageWidth) {
roundedRectangleRGBA(renderer, *left, *top, *left + labelWidth + messageWidth, *top + messageFontHeight, ROUND_RADIUS,color.r, color.g, color.b, SDL_ALPHA_OPAQUE);
}
Label currentLabel;
currentLabel.setFont(labelFont);
currentLabel.setColor(style.buttonBackground);
currentLabel.setPosition(*left + labelFontWidth/2, *top);
currentLabel.setText(label);
currentLabel.draw(renderer);
currentLabel.setFont(messageFont);
currentLabel.setColor(color);
currentLabel.setPosition(*left + labelWidth + messageFontWidth/2, *top);
currentLabel.setText(message);
currentLabel.draw(renderer);
*left = *left + labelWidth + messageWidth + PAD;
}
void View::drawCenteredStatusBox(std::string label, std::string message, SDL_Color color) {
int labelWidth = (label.length() + ((label.length() > 0 ) ? 1 : 0)) * labelFontWidth;
int messageWidth = (message.length() + ((message.length() > 0 ) ? 1 : 0)) * messageFontWidth;
int left = (screen_width - (labelWidth + messageWidth)) / 2;
int top = (screen_height - labelFontHeight) / 2;
drawStatusBox(&left, &top, label, message, color);
}
void View::drawStatus() {
int left = PAD;
int top = screen_height - messageFontHeight - PAD;
if(fps) {
char fps[60] = " ";
snprintf(fps,40,"%.1f", 1000.0 / lastFrameTime);
drawStatusBox(&left, &top, "fps", fps, style.grey_dark);
}
if(!appData->connected) {
drawStatusBox(&left,&top,"init", "connecting", style.red);
} else {
char strLoc[20] = " ";
snprintf(strLoc, 20, "%3.3fN %3.3f%c", centerLat, fabs(centerLon),(centerLon > 0) ? 'E' : 'W');
drawStatusBox(&left, &top, "loc", strLoc, style.buttonColor);
char strPlaneCount[10] = " ";
snprintf(strPlaneCount, 10,"%d/%d", appData->numVisiblePlanes, appData->numPlanes);
drawStatusBox(&left, &top, "disp", strPlaneCount, style.buttonColor);
char strMsgRate[18] = " ";
snprintf(strMsgRate, 18,"%.0f/s", appData->msgRate);
drawStatusBox(&left, &top, "rate", strMsgRate, style.buttonColor);
char strSig[18] = " ";
snprintf(strSig, 18, "%.0f%%", 100.0 * appData->avgSig / 1024.0);
drawStatusBox(&left, &top, "sAvg", strSig, style.buttonColor);
}
if(map.loaded < 100) {
char loaded[20] = " ";
snprintf(loaded, 20, "loading map %d%%", map.loaded);
drawStatusBox(&left,&top,"init", loaded, style.orange);
}
}
//
// Main drawing
//
void View::drawPlaneOffMap(int x, int y, int *returnx, int *returny, SDL_Color planeColor) {
float arrowWidth = 6.0 * screen_uiscale;
float inx = x - (screen_width>>1);
float iny = y - (screen_height>>1);
float outx, outy;
outx = inx;
outy = iny;
if(abs(inx) > abs(y - (screen_height>>1)) * static_cast<float>(screen_width>>1) / static_cast<float>(screen_height>>1)) { //left / right quadrants
outx = (screen_width>>1) * ((inx > 0) ? 1.0 : -1.0);
outy = (outx) * iny / (inx);
} else { // up / down quadrants
outy = screen_height * ((iny > 0) ? 0.5 : -0.5 );
outx = (outy) * inx / (iny);
}
// circleRGBA (renderer,(screen_width>>1) + outx, screen_height * CENTEROFFSET + outy,50,planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
// thickLineRGBA(renderer,screen_width>>1,screen_height * CENTEROFFSET, (screen_width>>1) + outx, screen_height * CENTEROFFSET + outy,arrowWidth,planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
float inmag = sqrt(inx *inx + iny*iny);
float vec[3];
vec[0] = inx / inmag;
vec[1] = iny /inmag;
vec[2] = 0;
float up[] = {0,0,1};
float out[3];
CROSSVP(out,vec,up);
int x1, x2, x3, y1, y2, y3;
// arrow 1
x1 = (screen_width>>1) + outx - 2.0 * arrowWidth * vec[0] + round(-arrowWidth*out[0]);
y1 = (screen_height>>1) + outy - 2.0 * arrowWidth * vec[1] + round(-arrowWidth*out[1]);
x2 = (screen_width>>1) + outx - 2.0 * arrowWidth * vec[0] + round(arrowWidth*out[0]);
y2 = (screen_height>>1) + outy - 2.0 * arrowWidth * vec[1] + round(arrowWidth*out[1]);
x3 = (screen_width>>1) + outx - arrowWidth * vec[0];
y3 = (screen_height>>1) + outy - arrowWidth * vec[1];
trigonRGBA(renderer, x1, y1, x2, y2, x3, y3, planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
// arrow 2
x1 = (screen_width>>1) + outx - 3.0 * arrowWidth * vec[0] + round(-arrowWidth*out[0]);
y1 = (screen_height>>1) + outy - 3.0 * arrowWidth * vec[1] + round(-arrowWidth*out[1]);
x2 = (screen_width>>1) + outx - 3.0 * arrowWidth * vec[0] + round(arrowWidth*out[0]);
y2 = (screen_height>>1) + outy - 3.0 * arrowWidth * vec[1] + round(arrowWidth*out[1]);
x3 = (screen_width>>1) + outx - 2.0 * arrowWidth * vec[0];
y3 = (screen_height>>1) + outy - 2.0 * arrowWidth * vec[1];
trigonRGBA(renderer, x1, y1, x2, y2, x3, y3, planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
*returnx = x3;
*returny = y3;
}
void View::drawPlaneIcon(int x, int y, float heading, SDL_Color planeColor)
{
float body = 8.0 * screen_uiscale;
float wing = 6.0 * screen_uiscale;
float wingThick = 0.5;
float tail = 3.0 * screen_uiscale;
float tailThick = 0.35;
float bodyWidth = screen_uiscale;
float vec[3];
vec[0] = sin(heading * M_PI / 180);
vec[1] = -cos(heading * M_PI / 180);
vec[2] = 0;
float up[] = {0,0,1};
float out[3];
CROSSVP(out,vec,up);
int x1, x2, y1, y2;
//body
x1 = x + round(-bodyWidth*out[0]);
y1 = y + round(-bodyWidth*out[1]);
x2 = x + round(bodyWidth*out[0]);
y2 = y + round(bodyWidth*out[1]);
filledTrigonRGBA (renderer, x1, y1, x2, y2, x+round(-body * vec[0]), y+round(-body*vec[1]),planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
filledTrigonRGBA (renderer, x1, y1, x2, y2, x+round(body * vec[0]), y+round(body*vec[1]),planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
//x1 = x + round(8*vec[0]);
//y1 = y + round(8*vec[1]);
//x2 = x + round(16*vec[0]);
//y2 = y + round(16*vec[1]);
//lineRGBA(renderer,x1,y1,x2,y2, style.white.r, style.white.g, style.white.b, SDL_ALPHA_OPAQUE);
// x1 = x + round(-body*vec[0] + bodyWidth*out[0]);
// y1 = y + round(-body*vec[1] + bodyWidth*out[1]);
// x2 = x + round(body*vec[0] + bodyWidth*out[0]);
// y2 = y + round(body*vec[1] + bodyWidth*out[1]);
// lineRGBA(renderer,x,y,x2,y2,planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
//trigonRGBA(renderer, x + round(-wing*.35*out[0]), y + round(-wing*.35*out[1]), x + round(wing*.35*out[0]), y + round(wing*.35*out[1]), x1, y1,planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
// circleRGBA(renderer, x2,y2,screen_uiscale,planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
//wing
x1 = x + round(-wing*out[0]);
y1 = y + round(-wing*out[1]);
x2 = x + round(wing*out[0]);
y2 = y + round(wing*out[1]);
filledTrigonRGBA(renderer, x1, y1, x2, y2, x+round(body*wingThick*vec[0]), y+round(body*wingThick*vec[1]),planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
//tail
x1 = x + round(-body*.75*vec[0] - tail*out[0]);
y1 = y + round(-body*.75*vec[1] - tail*out[1]);
x2 = x + round(-body*.75*vec[0] + tail*out[0]);
y2 = y + round(-body*.75*vec[1] + tail*out[1]);
filledTrigonRGBA (renderer, x1, y1, x2, y2, x+round(-body*tailThick*vec[0]), y+round(-body*tailThick*vec[1]),planeColor.r,planeColor.g,planeColor.b,SDL_ALPHA_OPAQUE);
}
void View::drawTrails(int left, int top, int right, int bottom) {
int currentX, currentY, prevX, prevY;
float dx, dy;
Aircraft *p = appData->aircraftList.head;
while(p) {
if (p->lon && p->lat) {
if(p->lonHistory.empty()) {
return;
}
std::vector<float>::iterator lon_idx = p->lonHistory.begin();
std::vector<float>::iterator lat_idx = p->latHistory.begin();
std::vector<float>::iterator heading_idx = p->headingHistory.begin();
float age = 0;
for(; std::next(lon_idx) != p->lonHistory.end(); ++lon_idx, ++lat_idx, ++heading_idx, age += 1.0) {
pxFromLonLat(&dx, &dy, *(std::next(lon_idx)), *(std::next(lat_idx)));
screenCoords(&currentX, &currentY, dx, dy);
pxFromLonLat(&dx, &dy, *lon_idx, *lat_idx);
screenCoords(&prevX, &prevY, dx, dy);
if(outOfBounds(currentX,currentY,left,top,right,bottom) && outOfBounds(prevX,prevY,left,top,right,bottom)) {
continue;
}
SDL_Color color = lerpColor({255,0,0,255}, {255,200,0,255}, age / static_cast<float>(p->lonHistory.size()));
uint8_t colorVal = (uint8_t)floor(127.0 * (age / static_cast<float>(p->lonHistory.size())));
//thickLineRGBA(renderer, prevX, prevY, currentX, currentY, 2 * screen_uiscale, 255, 255, 255, colorVal);
lineRGBA(renderer, prevX, prevY, currentX, currentY, color.r, color.g, color.b, colorVal);
}
}
p = p->next;
}
}
void View::drawScaleBars()
{
int scalePower = 0;
int scaleBarDist = screenDist((float)pow(10,scalePower));
char scaleLabel[13] = "";
lineRGBA(renderer,10,10,10,10*screen_uiscale,style.scaleBarColor.r, style.scaleBarColor.g, style.scaleBarColor.b, 255);
while(scaleBarDist < screen_width) {
lineRGBA(renderer,10+scaleBarDist,8,10+scaleBarDist,16*screen_uiscale,style.scaleBarColor.r, style.scaleBarColor.g, style.scaleBarColor.b, 255);
if (metric) {
snprintf(scaleLabel,13,"%dkm", static_cast<int>(pow(10,scalePower)));
} else {
snprintf(scaleLabel,13,"%dmi", static_cast<int>(pow(10,scalePower)));
}
Label currentLabel;
currentLabel.setFont(mapFont);
currentLabel.setColor(style.scaleBarColor);
currentLabel.setPosition(10+scaleBarDist, 15*screen_uiscale);
currentLabel.setText(scaleLabel);
currentLabel.draw(renderer);
scalePower++;
scaleBarDist = screenDist(powf(10,scalePower));
}
scalePower--;
scaleBarDist = screenDist(powf(10,scalePower));
lineRGBA(renderer,10,10+5*screen_uiscale,10+scaleBarDist,10+5*screen_uiscale, style.scaleBarColor.r, style.scaleBarColor.g, style. scaleBarColor.b, 255);
}
void View::drawLines(int left, int top, int right, int bottom, int bailTime) {
float screen_lat_min, screen_lat_max, screen_lon_min, screen_lon_max;
latLonFromScreenCoords(&screen_lat_min, &screen_lon_min, left, top);
latLonFromScreenCoords(&screen_lat_max, &screen_lon_max, right, bottom);
drawLinesRecursive(&(map.root), screen_lat_min, screen_lat_max, screen_lon_min, screen_lon_max, style.geoColor);
drawLinesRecursive(&(map.airport_root), screen_lat_min, screen_lat_max, screen_lon_min, screen_lon_max, style.airportColor);
drawTrails(left, top, right, bottom);
}
void View::drawLinesRecursive(QuadTree *tree, float screen_lat_min, float screen_lat_max, float screen_lon_min, float screen_lon_max, SDL_Color color) {
if(tree == NULL) {
return;
}
if (tree->lat_min > screen_lat_max || screen_lat_min > tree->lat_max) {
return;
}
if (tree->lon_min > screen_lon_max || screen_lon_min > tree->lon_max) {
return;
}
drawLinesRecursive(tree->nw, screen_lat_min, screen_lat_max, screen_lon_min, screen_lon_max, color);
drawLinesRecursive(tree->sw, screen_lat_min, screen_lat_max, screen_lon_min, screen_lon_max, color);
drawLinesRecursive(tree->ne, screen_lat_min, screen_lat_max, screen_lon_min, screen_lon_max, color);
drawLinesRecursive(tree->se, screen_lat_min, screen_lat_max, screen_lon_min, screen_lon_max, color);
std::vector<Line*>::iterator currentLine;
for (currentLine = tree->lines.begin(); currentLine != tree->lines.end(); ++currentLine) {
int x1,y1,x2,y2;
float dx,dy;
pxFromLonLat(&dx, &dy, (*currentLine)->start.lon, (*currentLine)->start.lat);
screenCoords(&x1, &y1, dx, dy);
pxFromLonLat(&dx, &dy, (*currentLine)->end.lon, (*currentLine)->end.lat);
screenCoords(&x2, &y2, dx, dy);
if(outOfBounds(x1,y1) && outOfBounds(x2,y2)) {
continue;
}
if(x1 == x2 && y1 == y2) {
continue;
}
lineRGBA(renderer, x1, y1, x2, y2, color.r, color.g, color.b, 255);
}
// //Debug quadtree
// int tl_x,tl_y,tr_x,tr_y,bl_x,bl_y,br_x,br_y;
// float dx,dy;
// pxFromLonLat(&dx, &dy, tree->lon_min, tree->lat_min);
// screenCoords(&tl_x, &tl_y, dx, dy);
// pxFromLonLat(&dx, &dy, tree->lon_max, tree->lat_min);
// screenCoords(&tr_x, &tr_y, dx, dy);
// pxFromLonLat(&dx, &dy, tree->lon_min, tree->lat_max);
// screenCoords(&bl_x, &bl_y, dx, dy);
// pxFromLonLat(&dx, &dy, tree->lon_max, tree->lat_max);
// screenCoords(&br_x, &br_y, dx, dy);
// lineRGBA(renderer, tl_x, tl_y, tr_x, tr_y, 50, 50, 50, 255);
// lineRGBA(renderer, tr_x, tr_y, br_x, br_y, 50, 50, 50, 255);
// lineRGBA(renderer, bl_x, bl_y, br_x, br_y, 50, 50, 50, 255);
// lineRGBA(renderer, tl_x, tl_y, bl_x, bl_y, 50, 50, 50, 255);
// // pixelRGBA(renderer,tl_x, tl_y,255,0,0,255);
// pixelRGBA(renderer,tr_x, tr_y,0,255,0,255);
// pixelRGBA(renderer,bl_x, bl_y,0,0,255,255);
// pixelRGBA(renderer,br_x, br_y,255,255,0,255);
}
void View::drawPlaceNames() {
//pre-generating labels in map will trade memory for TTF calls - need to compare when there are a lot of labels on screen
Label currentLabel;
currentLabel.setFont(mapFont);
currentLabel.setColor(style.geoColor);
for(std::vector<MapLabel*>::iterator label = map.mapnames.begin(); label != map.mapnames.end(); ++label) {
float dx, dy;
int x,y;
pxFromLonLat(&dx, &dy, (*label)->location.lon, (*label)->location.lat);
screenCoords(&x, &y, dx, dy);
if(outOfBounds(x,y)) {
continue;
}
currentLabel.setText((*label)->text);
currentLabel.setPosition(x,y);
currentLabel.draw(renderer);
}
for(std::vector<MapLabel*>::iterator label = map.airportnames.begin(); label != map.airportnames.end(); ++label) {
float dx, dy;
int x,y;
pxFromLonLat(&dx, &dy, (*label)->location.lon, (*label)->location.lat);
screenCoords(&x, &y, dx, dy);
if(outOfBounds(x,y)) {
continue;
}
currentLabel.setText((*label)->text);
currentLabel.setPosition(x,y);
currentLabel.draw(renderer);
}
}
void View::drawGeography() {
if((mapRedraw && !mapMoved) || (mapAnimating && elapsed(lastRedraw) > 8 * FRAMETIME) || elapsed(lastRedraw) > 2000) {
SDL_SetRenderTarget(renderer, mapTexture);
SDL_SetRenderDrawColor(renderer, style.backgroundColor.r, style.backgroundColor.g, style.backgroundColor.b, 255);
SDL_RenderClear(renderer);
drawLines(0, 0, screen_width, screen_height, 0);
drawPlaceNames();
SDL_SetRenderTarget(renderer, NULL );
mapMoved = 0;
mapRedraw = 0;
mapAnimating = 0;
lastRedraw = now();
currentLon = centerLon;
currentLat = centerLat;
currentMaxDist = maxDist;
}
SDL_SetRenderDrawColor(renderer, style.backgroundColor.r, style.backgroundColor.g, style.backgroundColor.b, 255);
SDL_RenderClear(renderer);
int shiftx = 0;
int shifty = 0;
if(mapMoved) {
float dx, dy;
int x1,y1, x2, y2;
pxFromLonLat(&dx, &dy, currentLon, currentLat);
screenCoords(&x1, &y1, dx, dy);
pxFromLonLat(&dx, &dy, centerLon, centerLat);
screenCoords(&x2, &y2, dx, dy);
shiftx = x1-x2;
shifty = y1-y2;
SDL_Rect dest;
dest.x = shiftx + (screen_width / 2) * (1 - currentMaxDist / maxDist);
dest.y = shifty + (screen_height / 2) * (1 - currentMaxDist / maxDist);
dest.w = screen_width * currentMaxDist / maxDist;
dest.h = screen_height * currentMaxDist / maxDist;
//left
if(dest.x > 0) {
drawLines(0, 0, dest.x, screen_height, FRAMETIME / 4);
}
//top
if(dest.y > 0) {
drawLines(0, screen_height - dest.y, screen_width, screen_height, FRAMETIME / 4);
}
//right
if(dest.x + dest.w < screen_width) {
drawLines(dest.x + dest.w, 0, screen_width, screen_height, FRAMETIME / 4);
}
//bottom
if(dest.y + dest.h < screen_height) {
drawLines(0, 0, screen_width, screen_height - dest.y - dest.h, FRAMETIME / 4);
}
//attempt rest before bailing
//drawGeography(dest.x, screen_height - dest.y, dest.x + dest.w, screen_height - dest.y - dest.h, 1);
SDL_RenderCopy(renderer, mapTexture, NULL, &dest);
mapRedraw = 1;
mapMoved = 0;
} else {
SDL_RenderCopy(renderer, mapTexture, NULL, NULL);
}
}
void View::drawPlaneText(Aircraft *p) {
if(!p->label) {
p->label = new AircraftLabel(p,metric,screen_width, screen_height, mapFont);
}
p->label->update();
p->label->draw(renderer, (p == selectedAircraft));
}
void View::moveLabels(float dx, float dy) {
Aircraft *p = appData->aircraftList.head;
while(p) {
if(p->label) {
p->label->move(dx,dy);
}
p = p->next;
}
}
void View::resolveLabelConflicts() {
Aircraft *p = appData->aircraftList.head;
while(p) {
if(p->label) {
p->label->clearAcceleration();
}
p = p->next;
}
p = appData->aircraftList.head;
while(p) {
if(p->label) {
p->label->calculateForces(appData->aircraftList.head);
}
p = p->next;
}
p = appData->aircraftList.head;
while(p) {
if(p->label) {
p->label->applyForces();
// if(p->label->getIsChanging()) {
// highFramerate = true;
// }
}
p = p->next;
}
}
void View::drawPlanes() {
Aircraft *p = appData->aircraftList.head;
SDL_Color planeColor;
if(selectedAircraft) {
mapTargetLon = selectedAircraft->lon;
mapTargetLat = selectedAircraft->lat;
}
p = appData->aircraftList.head;
while(p) {
if (p->lon && p->lat) {
// if lon lat argments were not provided, start by snapping to the first plane we see
if(centerLon == 0 && centerLat == 0) {
mapTargetLon = p->lon;
mapTargetLat = p->lat;
}
int x, y;
float dx, dy;
pxFromLonLat(&dx, &dy, p->lon, p->lat);
screenCoords(&x, &y, dx, dy);
float age_ms = elapsed(p->created);
if(age_ms < 500) {
//highFramerate = true;
float ratio = age_ms / 500.0f;
float radius = (1.0f - ratio * ratio) * screen_width / 8;
for(float theta = 0; theta < 2*M_PI; theta += M_PI / 4) {
pixelRGBA(renderer, x + radius * cos(theta), y + radius * sin(theta), style.planeColor.r, style.planeColor.g, style.planeColor.b, 255 * ratio);
}
// circleRGBA(renderer, x, y, 500 - age_ms, 255,255, 255, (uint8_t)(255.0 * age_ms / 500.0));
} else {
if(MODES_ACFLAGS_HEADING_VALID) {
int usex = x;
int usey = y;
float useHeading = static_cast<float>(p->track);
p->x = usex;
p->y = usey;
planeColor = lerpColor(style.planeColor, style.planeGoneColor, elapsed_s(p->msSeen) / DISPLAY_ACTIVE);
if(p == selectedAircraft) {
planeColor = style.selectedColor;
}
if(outOfBounds(x,y)) {
drawPlaneOffMap(x, y, &(p->x), &(p->y), planeColor);
} else {
if(elapsed(p->msSeenLatLon) < 500) {
//highFramerate = true;
circleRGBA(renderer, p->x, p->y, elapsed(p->msSeenLatLon) * screen_width / (8192), 127,127, 127, 255 - (uint8_t)(255.0 * elapsed(p->msSeenLatLon) / 500.0));
pxFromLonLat(&dx, &dy, p->getLastLon(), p->getLastLat());
screenCoords(&x, &y, dx, dy);
usex = lerp(x,usex,elapsed(p->msSeenLatLon) / 500.0);
usey = lerp(y,usey,elapsed(p->msSeenLatLon) / 500.0);
useHeading = lerpAngle(p->getLastHeading(),useHeading,elapsed(p->msSeenLatLon) / 500.0);
}
drawPlaneIcon(usex, usey, useHeading, planeColor);
}
drawPlaneText(p);
}
}
}
p = p->next;
}
}
void View::animateCenterAbsolute(float x, float y) {
float scale_factor = (screen_width > screen_height) ? screen_width : screen_height;
float dx = -1.0 * (0.75*(double)screen_width / (double)screen_height) * (x - screen_width/2) * maxDist / (0.95 * scale_factor * 0.5);
float dy = 1.0 * (y - screen_height/2) * maxDist / (0.95 * scale_factor * 0.5);
moveLabels(x,y);
float outLat = dy * (1.0/6371.0) * (180.0f / M_PI);
float outLon = dx * (1.0/6371.0) * (180.0f / M_PI) / cos(((centerLat)/2.0f) * M_PI / 180.0f);
mapTargetLon = centerLon - outLon;
mapTargetLat = centerLat - outLat;
mapTargetMaxDist = 0.25 * maxDist;
mapMoved = 1;
highFramerate = true;
}
void View::moveCenterAbsolute(float x, float y) {
float scale_factor = (screen_width > screen_height) ? screen_width : screen_height;
float dx = -1.0 * (0.75*(double)screen_width / (double)screen_height) * (x - screen_width/2) * maxDist / (0.95 * scale_factor * 0.5);
float dy = 1.0 * (y - screen_height/2) * maxDist / (0.95 * scale_factor * 0.5);
moveLabels(x,y);
float outLat = dy * (1.0/6371.0) * (180.0f / M_PI);
float outLon = dx * (1.0/6371.0) * (180.0f / M_PI) / cos(((centerLat)/2.0f) * M_PI / 180.0f);
centerLon += outLon;
centerLat += outLat;
mapTargetLon = 0;
mapTargetLat = 0;
mapMoved = 1;
highFramerate = true;
}
void View::moveCenterRelative(float dx, float dy) {
//
// need to make lonlat to screen conversion class - this is just the inverse of the stuff in draw.c, without offsets
//
moveLabels(dx,dy);
float scale_factor = (screen_width > screen_height) ? screen_width : screen_height;
dx = -1.0 * dx * maxDist / (0.95 * scale_factor * 0.5);
dy = 1.0 * dy * maxDist / (0.95 * scale_factor * 0.5);
float outLat = dy * (1.0/6371.0) * (180.0f / M_PI);
float outLon = dx * (1.0/6371.0) * (180.0f / M_PI) / cos(((centerLat)/2.0f) * M_PI / 180.0f);
centerLon += outLon;
centerLat += outLat;
mapTargetLon = 0;
mapTargetLat = 0;
mapMoved = 1;
highFramerate = true;
}
void View::zoomMapToTarget() {
if(mapTargetMaxDist) {
if(fabs(mapTargetMaxDist - maxDist) > 0.0001) {
maxDist += 0.1 * (mapTargetMaxDist - maxDist);
mapAnimating = 1;
mapMoved = 1;
highFramerate = true;
} else {
mapTargetMaxDist = 0;
}
}
}
void View::moveMapToTarget() {
if(mapTargetLon && mapTargetLat) {
if(fabs(mapTargetLon - centerLon) > 0.0001 || fabs(mapTargetLat - centerLat) > 0.0001) {
centerLon += 0.1 * (mapTargetLon- centerLon);
centerLat += 0.1 * (mapTargetLat - centerLat);
mapAnimating = 1;
mapMoved = 1;
highFramerate = true;
} else {
mapTargetLon = 0;
mapTargetLat = 0;
}
}
}
// void View::drawMouse() {
// if(!mouseMoved) {
// return;
// }
// if(elapsed(mouseMovedTime) > 1000) {
// mouseMoved = false;
// return;
// }
// int alpha = (int)(255.0f - 255.0f * (float)elapsed(mouseMovedTime) / 1000.0f);
// lineRGBA(renderer, mousex - 10 * screen_uiscale, mousey, mousex + 10 * screen_uiscale, mousey, white.r, white.g, white.b, alpha);
// lineRGBA(renderer, mousex, mousey - 10 * screen_uiscale, mousex, mousey + 10 * screen_uiscale, white.r, white.g, white.b, alpha);
// }
void View::drawClick() {
if(clickx && clicky) {
highFramerate = true;
int radius = .25 * elapsed(clickTime);
int alpha = 128 - static_cast<int>(0.5 * elapsed(clickTime));
if(alpha < 0 ) {
alpha = 0;
clickx = 0;
clicky = 0;
}
filledCircleRGBA(renderer, clickx, clicky, radius, style.clickColor.r, style.clickColor.g, style.clickColor.b, alpha);
}
if(selectedAircraft) {
// this logic should be in input, register a callback for click?
int boxSize;
if(elapsed(clickTime) < 300) {
boxSize = static_cast<int>(20.0 * (1.0 - (1.0 - elapsed(clickTime) / 300.0) * cos(sqrt(elapsed(clickTime)))));
} else {
boxSize = 20;
}
//rectangleRGBA(renderer, selectedAircraft->x - boxSize, selectedAircraft->y - boxSize, selectedAircraft->x + boxSize, selectedAircraft->y + boxSize, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
lineRGBA(renderer, selectedAircraft->x - boxSize, selectedAircraft->y - boxSize, selectedAircraft->x - boxSize/2, selectedAircraft->y - boxSize, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
lineRGBA(renderer, selectedAircraft->x - boxSize, selectedAircraft->y - boxSize, selectedAircraft->x - boxSize, selectedAircraft->y - boxSize/2, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
lineRGBA(renderer, selectedAircraft->x + boxSize, selectedAircraft->y - boxSize, selectedAircraft->x + boxSize/2, selectedAircraft->y - boxSize, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
lineRGBA(renderer, selectedAircraft->x + boxSize, selectedAircraft->y - boxSize, selectedAircraft->x + boxSize, selectedAircraft->y - boxSize/2, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
lineRGBA(renderer, selectedAircraft->x + boxSize, selectedAircraft->y + boxSize, selectedAircraft->x + boxSize/2, selectedAircraft->y + boxSize, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
lineRGBA(renderer, selectedAircraft->x + boxSize, selectedAircraft->y + boxSize, selectedAircraft->x + boxSize, selectedAircraft->y + boxSize/2, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
lineRGBA(renderer, selectedAircraft->x - boxSize, selectedAircraft->y + boxSize, selectedAircraft->x - boxSize/2, selectedAircraft->y + boxSize, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
lineRGBA(renderer, selectedAircraft->x - boxSize, selectedAircraft->y + boxSize, selectedAircraft->x - boxSize, selectedAircraft->y + boxSize/2, style.selectedColor.r, style.selectedColor.g, style.selectedColor.b, 255);
}
}
void View::registerClick(int tapcount, int x, int y) {
if(tapcount == 1) {
Aircraft *p = appData->aircraftList.head;
Aircraft *selection = NULL;
while(p) {
if(x && y) {
if((p->x - x) * (p->x - x) + (p->y - y) * (p->y - y) < 900) {
if(selection) {
if((p->x - x) * (p->x - x) + (p->y - y) * (p->y - y) <
(selection->x - x) * (selection->x - x) + (selection->y - y) * (selection->y - y)) {
selection = p;
}
} else {
selection = p;
}
}
}
p = p->next;
}
selectedAircraft = selection;
} else if(tapcount == 2) {
mapTargetMaxDist = 0.25 * maxDist;
animateCenterAbsolute(x, y);
}
clickx = x;
clicky = y;
clickTime = now();
}
void View::registerMouseMove(int x, int y) {
mouseMoved = true;
mouseMovedTime = now();
this->mousex = x;
this->mousey = y;
// aircraft debug
// Aircraft *mouse = appData->aircraftList.find(1);
// if(mouse != NULL) {
// latLonFromScreenCoords(&(mouse->lat), &(mouse->lon), x, screen_height-y);
// mouse->live = 1;
// }
highFramerate = true;
}
//
//
//
void View::draw() {
drawStartTime = now();
int targetFrameTime = 15;
// if(highFramerate) {
// targetFrameTime = 15;
// }
// highFramerate = false;
if (lastFrameTime < targetFrameTime) {
SDL_Delay(static_cast<Uint32>(targetFrameTime - lastFrameTime));
}
moveMapToTarget();
zoomMapToTarget();
drawGeography();
drawScaleBars();
if(appData->connected) {
for(int i = 0; i < 8; i++) {
// if(resolveLabelConflicts() < 0.001f) {
// break;
// }
resolveLabelConflicts();
}
drawPlanes();
}
drawStatus();
//drawMouse();
drawClick();
SDL_RenderPresent(renderer);
lastFrameTime = elapsed(drawStartTime);
}
View::View(AppData *appData){
this->appData = appData;
startupState = 0;
// Display options
screen_uiscale = 1;
screen_width = 0;
screen_height = 0;
screen_depth = 32;
fps = 0;
fullscreen = 0;
screen_index = 0;
highFramerate = false;
lastFrameTime = 0;
centerLon = 0;
centerLat = 0;
maxDist = 25.0;
mapMoved = 1;
mapRedraw = 1;
selectedAircraft = NULL;
std::thread t1(&Map::load, &map);
t1.detach();
}
View::~View() {
closeFont(mapFont);
closeFont(mapBoldFont);
closeFont(messageFont);
closeFont(labelFont);
closeFont(listFont);
TTF_Quit();
SDL_Quit();
}
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