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stb_image_write.h: applied mainstream PR/1337 patch

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fixes potential invalid memory access
https://github.com/nothings/stb/pull/1337
This commit is contained in:
Ozkan Sezer 2022-06-27 14:04:20 +03:00
parent 520397d93e
commit c1c9f3b7fe
4 changed files with 7 additions and 4 deletions
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1
Linux/sgml/Quakespasm.sgml
View file

@ -139,6 +139,7 @@ QuakeSpasm 0.94.0 has initial support for playing the 2021 re-release content: C
<sect1> Changes in 0.94.6<p>
<itemize>
<item> Server protocol size check fixes for sounds and particles.
<item> An invalid memory access fix in the jpg screenshot writer.
<item> Backported a few fixes to the bundled SDL2-2.0.22 version.
<item> Minor build fix for C++ compilers.
</itemize>

2
Quake/stb_image_write.h
View file

@ -381,7 +381,7 @@ static int stbiw__jpg_processDU(stbi__write_context *s, int *bitBuf, int *bitCnt
int startpos = i;
int nrzeroes;
unsigned short bits[2];
for (; DU[i]==0 && i<=end0pos; ++i) {
for (; i<=end0pos && DU[i]==0; ++i) {
}
nrzeroes = i-startpos;
if ( nrzeroes >= 16 ) {

6
Quakespasm.html
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@ -18,14 +18,13 @@
<P>
<H2><A NAME="toc3">3.</A> <A HREF="Quakespasm.html#s3">Hints </A></H2>
<UL>
<LI><A NAME="toc3.1">3.1</A> <A HREF="Quakespasm.html#ss3.1">Music Playback</A>
<LI><A NAME="toc3.2">3.2</A> <A HREF="Quakespasm.html#ss3.2">Controller Support</A>
</UL>
<P>
<H2><A NAME="toc4">4.</A> <A HREF="Quakespasm.html#s4">Compiling and Installation</A></H2>
<UL>
<LI><A NAME="toc4.1">4.1</A> <A HREF="Quakespasm.html#ss4.1">Linux/Unix </A>
<LI><A NAME="toc4.2">4.2</A> <A HREF="Quakespasm.html#ss4.2">Windows </A>
@ -33,8 +32,8 @@
<LI><A NAME="toc4.4">4.4</A> <A HREF="Quakespasm.html#ss4.4">Quake '2021 re-release' </A>
</UL>
<P>
<H2><A NAME="toc5">5.</A> <A HREF="Quakespasm.html#s5">Changes</A></H2>
<H2><A NAME="toc5">5.</A> <A HREF="Quakespasm.html#s5">Changes</A></H2>
<UL>
<LI><A NAME="toc5.1">5.1</A> <A HREF="Quakespasm.html#ss5.1">Changes in 0.94.6</A>
<LI><A NAME="toc5.2">5.2</A> <A HREF="Quakespasm.html#ss5.2">Changes in 0.94.5</A>
@ -219,6 +218,7 @@ Compile time options include
<P>
<UL>
<LI> Server protocol size check fixes for sounds and particles.</LI>
<LI> An invalid memory access fix in the jpg screenshot writer.</LI>
<LI> Backported a few fixes to the bundled SDL2-2.0.22 version.</LI>
<LI> Minor build fix for C++ compilers.</LI>
</UL>

2
Quakespasm.txt
View file

@ -269,6 +269,8 @@
o Server protocol size check fixes for sounds and particles.
o An invalid memory access fix in the jpg screenshot writer.
o Backported a few fixes to the bundled SDL2-2.0.22 version.
o Minor build fix for C++ compilers.