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max_idx should be initialized as -1 (#19625)

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old-commit-hash: 37a43124c0c10909e7906c3fd0c124f31f11dd87
This commit is contained in:
Dean Lee
2021-01-04 18:29:31 +08:00
committed by GitHub
parent 40a74fe136
commit 23a52deb5b
1 changed files with 3 additions and 3 deletions
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selfdrive/ui/paint.cc
+3 -3
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@@ -148,7 +148,7 @@ static void ui_draw_line(UIState *s, const vertex_data *v, const int cnt, NVGcol
static void update_track_data(UIState *s, const cereal::ModelDataV2::XYZTData::Reader &line, track_vertices_data *pvd) {
const UIScene *scene = &s->scene;
const float off = 0.5;
int max_idx = 0;
int max_idx = -1;
float lead_d;
if (s->sm->updated("radarState")) {
lead_d = scene->lead_data[0].getDRel()*2.;
@@ -210,14 +210,14 @@ static void draw_frame(UIState *s) {
static void update_line_data(UIState *s, const cereal::ModelDataV2::XYZTData::Reader &line, float off, line_vertices_data *pvd, float max_distance) {
// TODO check that this doesn't overflow max vertex buffer
int max_idx;
int max_idx = -1;
vertex_data *v = &pvd->v[0];
const float margin = 500.0f;
for (int i = 0; ((i < TRAJECTORY_SIZE) and (line.getX()[i] < fmax(MIN_DRAW_DISTANCE, max_distance))); i++) {
v += car_space_to_full_frame(s, line.getX()[i], -line.getY()[i] - off, -line.getZ()[i] + 1.22, &v->x, &v->y, margin);
max_idx = i;
}
for (int i = max_idx - 1; i > 0; i--) {
for (int i = max_idx; i >= 0; i--) {
v += car_space_to_full_frame(s, line.getX()[i], -line.getY()[i] + off, -line.getZ()[i] + 1.22, &v->x, &v->y, margin);
}
pvd->cnt = v - pvd->v;