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Start some rough multi-cylinder pressure data plot infrastructure

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It doesn't actually do multiple cylinders correctly yet, but it should
be a nice framework for it.  And accidentally (not) it also ends up
drawing the final line for the end pressure of a single-cylinder dive
that has been fixed up by hand too.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2011-10-19 09:47:46 -07:00
parent 9dce78c89f
commit 0a33d0bd7d
1 changed files with 14 additions and 3 deletions
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17
profile.c
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@ -25,6 +25,7 @@ struct plot_info {
int endpressure; /* start pressure better be max pressure */
int mintemp, maxtemp;
struct plot_data {
unsigned int same_cylinder:1;
int sec;
int pressure, temperature;
/* Depth info */
@ -496,8 +497,7 @@ static void plot_cylinder_pressure(struct graphics_context *gc, struct plot_info
set_source_rgba(gc, 0.2, 1.0, 0.2, 0.80);
move_to(gc, 0, pi->maxpressure);
for (i = 1; i < pi->nr; i++) {
for (i = 0; i < pi->nr; i++) {
int mbar;
struct plot_data *entry = pi->entry + i;
@ -505,7 +505,10 @@ static void plot_cylinder_pressure(struct graphics_context *gc, struct plot_info
if (!mbar)
continue;
have_pressure = TRUE;
line_to(gc, entry->sec, mbar);
if (entry->same_cylinder)
line_to(gc, entry->sec, mbar);
else
move_to(gc, 0, pi->maxpressure);
}
/* if we have valid samples, we don't want to draw a line to the minpressure
* but just end wherever the dive ended (think valve shutdowns during dive)
@ -691,6 +694,7 @@ static struct plot_info *analyze_plot_info(struct plot_info *pi)
*/
static struct plot_info *create_plot_info(struct dive *dive)
{
int cylinderindex = -1;
int lastdepth, lastindex;
int i, nr = dive->samples + 4, sec;
size_t alloc_size = plot_info_size(nr);
@ -711,6 +715,9 @@ static struct plot_info *create_plot_info(struct dive *dive)
sec = entry->sec = sample->time.seconds;
depth = entry->val = sample->depth.mm;
entry->same_cylinder = sample->cylinderindex == cylinderindex;
cylinderindex = sample->cylinderindex;
entry->pressure = sample->cylinderpressure.mbar;
entry->temperature = sample->temperature.mkelvin;
@ -727,6 +734,10 @@ static struct plot_info *create_plot_info(struct dive *dive)
i = dive->samples + 2;
pi->entry[i].sec = sec + 20;
pi->entry[i+1].sec = sec + 40;
if (cylinderindex >= 0) {
pi->entry[i].pressure = dive->cylinder[cylinderindex].end.mbar;
pi->entry[i].same_cylinder = 1;
}
pi->nr = lastindex+1;
pi->maxtime = pi->entry[lastindex].sec;