From: Gabriel Gambetta To: SDL Mailing List <sdl@libsdl.org> Date: Fri, 17 Nov 2006 00:39:29 -0200 Subject: [SDL] Alpha blending bug - fixed? It turns out mm5 never got the correct value. This failed : [...] "movd %1, %%mm5\n\t" : : "m" (amask), "m" (sf->Ashift) ); mm5 got 0xFF000018 instead of 0x00000018. However I did this : Uint32 ashift = sf->Ashift; [...] "movd %1, %%mm5\n\t" : : "m" (amask), "m" (ashift) ); and everything worked fine. The only thing I could find out was that ashift is 32-bit aligned but sf->Ashift isn't: printf("ashift %8X [%d]\n", &ashift, (int)(&ashift) % 4); printf("sf->Ashift %8X [%d]\n", &sf->Ashift, (int)(&sf->Ashift) % 4); ashift at BFF0E0C4 [0] sf->Ashift at 08AFB9CD [1] Could this be the problem? If it is, the fix is extremely trivial. Should I submit a patch? --Gabriel

.TH "SDL_JoystickNumBalls" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_JoystickNumBalls\- Get the number of joystick trackballs
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBint \fBSDL_JoystickNumBalls\fP\fR(\fBSDL_Joystick *joystick\fR);
.SH "DESCRIPTION"
.PP
Return the number of trackballs available from a previously opened \fBSDL_Joystick\fR\&.
.SH "RETURN VALUE"
.PP
Number of trackballs\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_JoystickGetBall\fP\fR, \fI\fBSDL_JoystickOpen\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00