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File style cleanup for the SDL 2.0 release

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This commit is contained in:
Sam Lantinga 2013-05-18 14:17:52 -07:00
parent 2ac8624930
commit 0cb6385637
376 changed files with 17562 additions and 17773 deletions
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68
src/haptic/linux/SDL_syshaptic.c
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@ -155,7 +155,7 @@ SDL_SYS_HapticInit(void)
numhaptics = 0;
/*
/*
* Limit amount of checks to MAX_HAPTICS since we may or may not have
* permission to some or all devices.
*/
@ -446,7 +446,7 @@ SDL_SYS_HapticClose(SDL_Haptic * haptic)
}
/*
/*
* Clean up after system specific haptic stuff
*/
void
@ -498,44 +498,44 @@ SDL_SYS_ToDirection(SDL_HapticDirection * dir)
switch (dir->type) {
case SDL_HAPTIC_POLAR:
/* Linux directions start from south.
(and range from 0 to 0xFFFF)
Quoting include/linux/input.h, line 926:
Direction of the effect is encoded as follows:
0 deg -> 0x0000 (down)
90 deg -> 0x4000 (left)
180 deg -> 0x8000 (up)
270 deg -> 0xC000 (right)
*/
tmp = (((18000 + dir->dir[0]) % 36000) * 0xFFFF) / 36000; // convert to range [0,0xFFFF]
(and range from 0 to 0xFFFF)
Quoting include/linux/input.h, line 926:
Direction of the effect is encoded as follows:
0 deg -> 0x0000 (down)
90 deg -> 0x4000 (left)
180 deg -> 0x8000 (up)
270 deg -> 0xC000 (right)
*/
tmp = (((18000 + dir->dir[0]) % 36000) * 0xFFFF) / 36000; /* convert to range [0,0xFFFF] */
return (Uint16) tmp;
case SDL_HAPTIC_SPHERICAL:
/*
We convert to polar, because that's the only supported direction on Linux.
The first value of a spherical direction is practically the same as a
Polar direction, except that we have to add 90 degrees. It is the angle
from EAST {1,0} towards SOUTH {0,1}.
--> add 9000
--> finally add 18000 and convert to [0,0xFFFF] as in case SDL_HAPTIC_POLAR.
*/
tmp = ((dir->dir[0]) + 9000) % 36000; /* Convert to polars */
tmp = (((18000 + tmp) % 36000) * 0xFFFF) / 36000; // convert to range [0,0xFFFF]
case SDL_HAPTIC_SPHERICAL:
/*
We convert to polar, because that's the only supported direction on Linux.
The first value of a spherical direction is practically the same as a
Polar direction, except that we have to add 90 degrees. It is the angle
from EAST {1,0} towards SOUTH {0,1}.
--> add 9000
--> finally add 18000 and convert to [0,0xFFFF] as in case SDL_HAPTIC_POLAR.
*/
tmp = ((dir->dir[0]) + 9000) % 36000; /* Convert to polars */
tmp = (((18000 + tmp) % 36000) * 0xFFFF) / 36000; /* convert to range [0,0xFFFF] */
return (Uint16) tmp;
case SDL_HAPTIC_CARTESIAN:
f = atan2(dir->dir[1], dir->dir[0]);
/*
atan2 takes the parameters: Y-axis-value and X-axis-value (in that order)
- Y-axis-value is the second coordinate (from center to SOUTH)
- X-axis-value is the first coordinate (from center to EAST)
We add 36000, because atan2 also returns negative values. Then we practically
have the first spherical value. Therefore we proceed as in case
SDL_HAPTIC_SPHERICAL and add another 9000 to get the polar value.
--> add 45000 in total
--> finally add 18000 and convert to [0,0xFFFF] as in case SDL_HAPTIC_POLAR.
*/
tmp = (((int) (f * 18000. / M_PI)) + 45000) % 36000;
tmp = (((18000 + tmp) % 36000) * 0xFFFF) / 36000; // convert to range [0,0xFFFF]
/*
atan2 takes the parameters: Y-axis-value and X-axis-value (in that order)
- Y-axis-value is the second coordinate (from center to SOUTH)
- X-axis-value is the first coordinate (from center to EAST)
We add 36000, because atan2 also returns negative values. Then we practically
have the first spherical value. Therefore we proceed as in case
SDL_HAPTIC_SPHERICAL and add another 9000 to get the polar value.
--> add 45000 in total
--> finally add 18000 and convert to [0,0xFFFF] as in case SDL_HAPTIC_POLAR.
*/
tmp = (((int) (f * 18000. / M_PI)) + 45000) % 36000;
tmp = (((18000 + tmp) % 36000) * 0xFFFF) / 36000; /* convert to range [0,0xFFFF] */
return (Uint16) tmp;
default: