diff options
author | marha <marha@users.sourceforge.net> | 2011-10-19 10:44:43 +0200 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2011-10-19 10:44:43 +0200 |
commit | 9f986778bd4393c5a9108426969d45aa7f10f334 (patch) | |
tree | 27d7bd08dac54a54a923e76dccf2b8e388be2a03 /xorg-server/dix/inpututils.c | |
parent | afbd3947071a33f59dda122f1ac396442a02c128 (diff) | |
download | vcxsrv-9f986778bd4393c5a9108426969d45aa7f10f334.tar.gz vcxsrv-9f986778bd4393c5a9108426969d45aa7f10f334.tar.bz2 vcxsrv-9f986778bd4393c5a9108426969d45aa7f10f334.zip |
libX11 libXext libXft mesa libxcb mkfontscale pixman xserver
xkeyboard-config git update 19 oct 2011
Diffstat (limited to 'xorg-server/dix/inpututils.c')
-rw-r--r-- | xorg-server/dix/inpututils.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/xorg-server/dix/inpututils.c b/xorg-server/dix/inpututils.c index 0a3d3d8b4..5c76361b3 100644 --- a/xorg-server/dix/inpututils.c +++ b/xorg-server/dix/inpututils.c @@ -37,6 +37,7 @@ #include "xkbstr.h" #include "inpututils.h" #include "eventstr.h" +#include "scrnintstr.h" /* Check if a button map change is okay with the device. * Returns -1 for BadValue, as it collides with MappingBusy. */ @@ -619,6 +620,13 @@ void init_device_event(DeviceEvent *event, DeviceIntPtr dev, Time ms) event->sourceid = dev->id; } +Bool +point_on_screen(ScreenPtr pScreen, int x, int y) +{ + return x >= pScreen->x && x < pScreen->x + pScreen->width && + y >= pScreen->y && y < pScreen->y + pScreen->height; +} + /** * Delete the element with the key from the list, freeing all memory * associated with the element.. @@ -759,3 +767,66 @@ input_option_set_value(InputOption *opt, const char *value) if (value) opt->value = strdup(value); } + + +/* FP1616/FP3232 conversion functions. + * Fixed point types are encoded as signed integral and unsigned frac. So any + * negative number -n.m is encoded as floor(n) + (1 - 0.m). + */ +double +fp1616_to_double(FP1616 in) +{ + double ret; + + ret = (double)(in >> 16); + ret += (double)(in & 0xffff) * (1.0 / (1UL << 16)); /* Optimized: ldexp((double)(in & 0xffff), -16); */ + return ret; +} + +double +fp3232_to_double(FP3232 in) +{ + double ret; + ret = (double)in.integral; + ret += (double)in.frac * (1.0 / (1ULL << 32)); /* Optimized: ldexp((double)in.frac, -32); */ + return ret; +} + + +FP1616 +double_to_fp1616(double in) +{ + FP1616 ret; + int32_t integral; + double tmp; + uint32_t frac_d; + + tmp = floor(in); + integral = (int32_t)tmp; + + tmp = (in - integral) * (1UL << 16); /* Optimized: ldexp(in - integral, 16) */ + frac_d = (uint16_t)tmp; + + ret = integral << 16; + ret |= frac_d & 0xffff; + return ret; +} + +FP3232 +double_to_fp3232(double in) +{ + FP3232 ret; + int32_t integral; + double tmp; + uint32_t frac_d; + + tmp = floor(in); + integral = (int32_t)tmp; + + tmp = (in - integral) * (1ULL << 32); /* Optimized: ldexp(in - integral, 32) */ + frac_d = (uint32_t)tmp; + + ret.integral = integral; + ret.frac = frac_d; + return ret; +} |