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annotate docs/man3/SDL_JoystickGetHat.3 @ 1543:98f9b16f565c

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From: "Alex Volkov" Date: Thu, 10 Nov 2005 21:53:40 -0500 Subject: [SDL] BUG[?]: 32bpp RGBA->RGB colorkey blit, no SDL_SRCALPHA It seems there is either a documentation vs. reality mismatch or a real bug in SDL_blit_N.c:BlitNtoNKey(). The exact blit in question is a 32bpp RGBA->RGB, where RGBA has SDL_COLORKEY and *no* SDL_SRCALPHA flags. The doc in SDL_video.h states: * RGBA->RGB: * SDL_SRCALPHA not set: * copy RGB. * if SDL_SRCCOLORKEY set, only copy the pixels matching the * RGB values of the source colour key, ignoring alpha in the * comparison. BlitNtoNKey(), however, forgets to "ignore alpha in the comparison". The documentation makes perfect sense, so I think it is the code that is faulty. The attached patch corrects the code.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 15 Mar 2006 15:43:15 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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e5bc29de3f0a Updated from the SDL Documentation Project
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1 .TH "SDL_JoystickGetHat" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference"
0
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2 .SH "NAME"
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3 SDL_JoystickGetHat\- Get the current state of a joystick hat
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4 .SH "SYNOPSIS"
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5 .PP
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6 \fB#include "SDL\&.h"
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7 .sp
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8 \fBUint8 \fBSDL_JoystickGetHat\fP\fR(\fBSDL_Joystick *joystick, int hat\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 SDL_JoystickGetHat returns the current state of the given \fBhat\fR on the given \fBjoystick\fR\&.
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12 .SH "RETURN VALUE"
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13 .PP
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14 The current state is returned as a Uint8 which is defined as an OR\&'d combination of one or more of the following
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15 .IP "" 10
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16 \fBSDL_HAT_CENTERED\fP
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17 .IP "" 10
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18 \fBSDL_HAT_UP\fP
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19 .IP "" 10
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20 \fBSDL_HAT_RIGHT\fP
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21 .IP "" 10
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22 \fBSDL_HAT_DOWN\fP
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23 .IP "" 10
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24 \fBSDL_HAT_LEFT\fP
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25 .IP "" 10
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26 \fBSDL_HAT_RIGHTUP\fP
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27 .IP "" 10
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28 \fBSDL_HAT_RIGHTDOWN\fP
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29 .IP "" 10
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30 \fBSDL_HAT_LEFTUP\fP
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31 .IP "" 10
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32 \fBSDL_HAT_LEFTDOWN\fP
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33 .SH "SEE ALSO"
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34 .PP
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35 \fI\fBSDL_JoystickNumHats\fP\fR
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36 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00