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Moved the CPU speed "clearing" function from Pulse to cpu_type.h header.

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It's now also used by AboutHaiku.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13569 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-07-09 21:01:23 +00:00
parent 04d45bdb27
commit 26ca407bfc
4 changed files with 39 additions and 37 deletions
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headers/private/shared/cpu_type.h
+27 -2
View File
@@ -1,10 +1,10 @@
/*
* Copyright 2004, Axel Dörfler, [email protected]. All rights reserved.
* Copyright 2004-2005, Axel Dörfler, [email protected]. All rights reserved.
* Distributed under the terms of the MIT License.
*/
/* Taken from the Pulse application, and extended.
* It's used by Pulse and sysinfo.
* It's used by Pulse, AboutHaiku, and sysinfo.
*/
#ifdef __cplusplus
@@ -14,6 +14,7 @@ extern "C" {
const char *get_cpu_vendor_string(enum cpu_types type);
const char *get_cpu_model_string(enum cpu_types type);
void get_cpu_type(char *vendorBuffer, size_t vendorSize, char *modelBuffer, size_t modelSize);
int32 get_rounded_cpu_speed(void);
#ifdef __cplusplus
}
@@ -202,3 +203,27 @@ get_cpu_type(char *vendorBuffer, size_t vendorSize, char *modelBuffer, size_t mo
strlcpy(modelBuffer, model, modelSize);
#endif
}
int32
get_rounded_cpu_speed(void)
{
system_info sys_info;
get_system_info(&sys_info);
int target = sys_info.cpu_clock_speed / 1000000;
int frac = target % 100;
int delta = -frac;
int at = 0;
int freqs[] = { 100, 50, 25, 75, 33, 67, 20, 40, 60, 80, 10, 30, 70, 90 };
for (uint x = 0; x < sizeof(freqs) / sizeof(freqs[0]); x++) {
int ndelta = freqs[x] - frac;
if (abs(ndelta) < abs(delta)) {
at = freqs[x];
delta = ndelta;
}
}
return target + delta;
}