diff options
| author | Bdale Garbee <bdale@gag.com> | 2014-09-09 23:28:39 -0600 |
|---|---|---|
| committer | Bdale Garbee <bdale@gag.com> | 2014-09-09 23:28:39 -0600 |
| commit | 16405fd3eb6f82ef3a709e3ed30fc48faef7b547 (patch) | |
| tree | c111819b3ba0c9357af41c81b798326b9df7adad /src/kernel/ao_convert_pa.c | |
| parent | 5a2f6ed6210844f7284fbf9f7ecba68c8a14fa52 (diff) | |
| parent | 28bd5057252e61bc5b1a35a00bc1f9fdfde097f7 (diff) | |
Merge branch 'branch-1.5' into debian
Conflicts:
ChangeLog
Releasing
altosui/Instdrv/NSIS/Includes/java.nsh
altosui/altos-windows.nsi.in
configure.ac
doc/Makefile
doc/altusmetrum.xsl
micropeak/micropeak-windows.nsi.in
telegps/telegps-windows.nsi.in
Diffstat (limited to 'src/kernel/ao_convert_pa.c')
| -rw-r--r-- | src/kernel/ao_convert_pa.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/src/kernel/ao_convert_pa.c b/src/kernel/ao_convert_pa.c index fe6e0ef6..410815b6 100644 --- a/src/kernel/ao_convert_pa.c +++ b/src/kernel/ao_convert_pa.c @@ -24,7 +24,11 @@ #endif static const alt_t altitude_table[] AO_CONST_ATTRIB = { +#if AO_SMALL_ALTITUDE_TABLE +#include "altitude-pa-small.h" +#else #include "altitude-pa.h" +#endif }; #ifndef FETCH_ALT @@ -35,11 +39,11 @@ static const alt_t altitude_table[] AO_CONST_ATTRIB = { #define ALT_MASK (ALT_SCALE - 1) alt_t -ao_pa_to_altitude(int32_t pa) +ao_pa_to_altitude(pres_t pa) { int16_t o; int16_t part; - int32_t low, high; + alt_t low, high; if (pa < 0) pa = 0; @@ -48,16 +52,16 @@ ao_pa_to_altitude(int32_t pa) o = pa >> ALT_SHIFT; part = pa & ALT_MASK; - low = (int32_t) FETCH_ALT(o) * (ALT_SCALE - part); - high = (int32_t) FETCH_ALT(o+1) * part + (ALT_SCALE >> 1); + low = (alt_t) FETCH_ALT(o) * (ALT_SCALE - part); + high = (alt_t) FETCH_ALT(o+1) * part + (ALT_SCALE >> 1); return (low + high) >> ALT_SHIFT; } #ifdef AO_CONVERT_TEST -int32_t -ao_altitude_to_pa(int32_t alt) +pres_t +ao_altitude_to_pa(alt_t alt) { - int32_t span, sub_span; + alt_t span, sub_span; uint16_t l, h, m; int32_t pa; @@ -72,7 +76,7 @@ ao_altitude_to_pa(int32_t alt) } span = altitude_table[l] - altitude_table[h]; sub_span = altitude_table[l] - alt; - pa = ((((int32_t) l * (span - sub_span) + (int32_t) h * sub_span) << ALT_SHIFT) + (span >> 1)) / span; + pa = ((((alt_t) l * (span - sub_span) + (alt_t) h * sub_span) << ALT_SHIFT) + (span >> 1)) / span; if (pa > 120000) pa = 120000; if (pa < 0) |