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Fix crash when selecting nonexistant texture in D3Radiant

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When selecting a texture in Inspectors -> Media -> Textures that doesn't
really exist (.mtr defines it, but referenced image files are missing),
the game/editor used to crash.
The problem was that somehow people thought the best way to communicate
that a file wasn't found was by setting the timestamp to 0xFFFFFFFF
and then checking for that - sometimes (incorrectly) by comparing it to -1.
That worked for 32bit ID_TIME_T (typedefed to time_t), but not with 64bit
time_t, which now seems to be the default for Win32 in VS.
So I replaced a few -1 and 0xFF... with FILE_NOT_FOUND_TIMESTAMP and now it
works.
FILE_NOT_FOUND_TIMESTAMP is still defined as 0xFFFFFFFF, maybe I should
change that, unsure if that'd break anything though..
When changing it one should keep in mind that time_t might still be 32bit
on some platforms (Linux x86?) so that should still work.. (-1 could work)
This commit is contained in:
Daniel Gibson 2019-01-27 05:56:36 +01:00
parent 9a95a2a1cf
commit b0d022f559
3 changed files with 7 additions and 5 deletions
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2
neo/framework/FileSystem.h
View file

@ -57,6 +57,8 @@ If you have questions concerning this license or the applicable additional terms
===============================================================================
*/
// FIXME: DG: this assumes 32bit time_t, but it's 64bit now, at least on some platforms incl. Win32 in modern VS
// => change it (to -1?) or does that break anything?
static const ID_TIME_T FILE_NOT_FOUND_TIMESTAMP = 0xFFFFFFFF;
static const int MAX_PURE_PAKS = 128;
static const int MAX_OSPATH = FILENAME_MAX;

4
neo/renderer/Image_files.cpp
View file

@ -957,7 +957,7 @@ void R_LoadImage( const char *cname, byte **pic, int *width, int *height, ID_TIM
*pic = NULL;
}
if ( timestamp ) {
*timestamp = 0xFFFFFFFF;
*timestamp = FILE_NOT_FOUND_TIMESTAMP;
}
if ( width ) {
*width = 0;
@ -978,7 +978,7 @@ void R_LoadImage( const char *cname, byte **pic, int *width, int *height, ID_TIM
if ( ext == "tga" ) {
LoadTGA( name.c_str(), pic, width, height, timestamp ); // try tga first
if ( ( pic && *pic == 0 ) || ( timestamp && *timestamp == -1 ) ) {
if ( ( pic && *pic == 0 ) || ( timestamp && *timestamp == FILE_NOT_FOUND_TIMESTAMP ) ) {
name.StripFileExtension();
name.DefaultFileExtension( ".jpg" );
LoadJPG( name.c_str(), pic, width, height, timestamp );

6
neo/renderer/Image_program.cpp
View file

@ -403,7 +403,7 @@ static bool R_ParseImageProgram_r( idLexer &src, byte **pic, int *width, int *he
}
if ( !token.Icmp( "addnormals" ) ) {
byte *pic2;
byte *pic2 = NULL;
int width2, height2;
MatchAndAppendToken( src, "(" );
@ -454,7 +454,7 @@ static bool R_ParseImageProgram_r( idLexer &src, byte **pic, int *width, int *he
}
if ( !token.Icmp( "add" ) ) {
byte *pic2;
byte *pic2 = NULL;
int width2, height2;
MatchAndAppendToken( src, "(" );
@ -589,7 +589,7 @@ static bool R_ParseImageProgram_r( idLexer &src, byte **pic, int *width, int *he
// load it as an image
R_LoadImage( token.c_str(), pic, width, height, &timestamp, true );
if ( timestamp == -1 ) {
if ( timestamp == FILE_NOT_FOUND_TIMESTAMP ) {
return false;
}