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T: scrolltti: handle tick discontinuities

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For TDD.
This commit is contained in:
Cedric Roux
2025-08-18 11:53:54 +02:00
parent 645393f464
commit 595e650f9f
1 changed files with 26 additions and 4 deletions
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common/utils/T/tracer/view/scrolltti.c
+26 -4
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@@ -20,6 +20,8 @@ struct scrolltti {
float xout[1000];
float yout[1000];
int insert_point;
int next_tick_frame;
int next_tick_subframe;
};
/* this array is used to get Y range 1000, 2000, 5000, 10000, ... */
@@ -65,15 +67,35 @@ static void clear(view *this)
/* TODO */
}
static void insert(struct scrolltti *this, double value)
{
this->total -= this->data[this->insert_point];
this->data[this->insert_point] = value;
this->total += this->data[this->insert_point];
this->insert_point = (this->insert_point + 1) % 1000;
}
static void next_subframe(struct scrolltti *this)
{
this->next_tick_subframe++;
if (this->next_tick_subframe == 10) {
this->next_tick_subframe = 0;
this->next_tick_frame++;
this->next_tick_frame %= 1024;
}
}
static void append(view *_this, int frame, int subframe, double value)
{
struct scrolltti *this = (struct scrolltti *)_this;
if (pthread_mutex_lock(&this->lock)) abort();
this->total -= this->data[this->insert_point];
this->data[this->insert_point] = value;
this->total += this->data[this->insert_point];
this->insert_point = (this->insert_point + 1) % 1000;
while (this->next_tick_frame != frame || this->next_tick_subframe != subframe) {
insert(this, 0);
next_subframe(this);
}
insert(this, value);
next_subframe(this);
if (pthread_mutex_unlock(&this->lock)) abort();
}