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annotate docs/man3/SDL_LockYUVOverlay.3 @ 4209:62e86ab81e3c SDL-1.2

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Fixed bug #570 SDL_SemWaitTimeout in src/thread/generic/SDL_syssem.c line 179 (SVN trunk): --sem->count; should be if (retval == 0) { --sem->count; } Without this, sem->count will underflow on timeout effectively breaking the semaphore. It appears that the implementation has been wrong since the initial revision.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 21 Sep 2009 07:32:26 +0000
parents 4e3b250c950e
children 1238da4a7112
rev   line source
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1 .TH "SDL_LockYUVOverlay" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
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2 .SH "NAME"
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4e3b250c950e Erik Heckers fixed bug #493
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3 SDL_LockYUVOverlay \- Lock an overlay
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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 \fBint \fBSDL_LockYUVOverlay\fP\fR(\fBSDL_Overlay *overlay\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Much the same as \fI\fBSDL_LockSurface\fP\fR, \fBSDL_LockYUVOverlay\fP locks the \fI\fBoverlay\fR\fR for direct access to pixel data\&.
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12 .SH "RETURN VALUE"
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13 .PP
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14 Returns \fB0\fR on success, or \fB-1\fR on an error\&.
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15 .SH "SEE ALSO"
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16 .PP
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17 \fI\fBSDL_UnlockYUVOverlay\fP\fR, \fI\fBSDL_CreateYUVOverlay\fP\fR, \fI\fBSDL_Overlay\fR\fR
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parents: 55
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18 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01