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Check for shaders without closing brace

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Shaders without closing brace can eat shaders in other files.
Pass depth to SkipBracedSection instead of reparsing text as it messed up parse line numbers.
This commit is contained in:
Zack Middleton 2013-06-02 21:55:19 -05:00
parent c0a21d0898
commit 3ec2b02dce
4 changed files with 41 additions and 21 deletions
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8
code/qcommon/q_shared.c
View file

@ -552,16 +552,14 @@ void COM_MatchToken( char **buf_p, char *match ) {
=================
SkipBracedSection
The next token should be an open brace.
The next token should be an open brace or set depth to 1 if already parsed it.
Skips until a matching close brace is found.
Internal brace depths are properly skipped.
=================
*/
void SkipBracedSection (char **program) {
qboolean SkipBracedSection (char **program, int depth) {
char *token;
int depth;
depth = 0;
do {
token = COM_ParseExt( program, qtrue );
if( token[1] == 0 ) {
@ -573,6 +571,8 @@ void SkipBracedSection (char **program) {
}
}
} while( depth && *program );
return ( depth == 0 );
}
/*

2
code/qcommon/q_shared.h
View file

@ -752,7 +752,7 @@ typedef struct pc_token_s
void COM_MatchToken( char**buf_p, char *match );
void SkipBracedSection (char **program);
qboolean SkipBracedSection (char **program, int depth);
void SkipRestOfLine ( char **data );
void Parse1DMatrix (char **buf_p, int x, float *m);

22
code/renderergl1/tr_shader.c
View file

@ -2382,7 +2382,7 @@ static char *FindShaderInShaderText( const char *shadername ) {
}
else {
// skip the definition
SkipBracedSection( &p );
SkipBracedSection( &p, 0 );
}
}
@ -2916,6 +2916,8 @@ static void ScanAndLoadShaderFiles( void )
int i;
char *oldp, *token, *hashMem, *textEnd;
int shaderTextHashTableSizes[MAX_SHADERTEXT_HASH], hash, size;
char shaderName[MAX_QPATH];
int shaderLine;
long sum = 0, summand;
// scan for shader files
@ -2945,6 +2947,7 @@ static void ScanAndLoadShaderFiles( void )
// Do a simple check on the shader structure in that file to make sure one bad shader file cannot fuck up all other shaders.
p = buffers[i];
COM_BeginParseSession(filename);
while(1)
{
token = COM_ParseExt(&p, qtrue);
@ -2952,7 +2955,8 @@ static void ScanAndLoadShaderFiles( void )
if(!*token)
break;
oldp = p;
Q_strncpyz(shaderName, token, sizeof(shaderName));
shaderLine = COM_GetCurrentParseLine();
token = COM_ParseExt(&p, qtrue);
if(token[0] != '{' || token[1] != '\0')
@ -2963,8 +2967,14 @@ static void ScanAndLoadShaderFiles( void )
break;
}
SkipBracedSection(&oldp);
p = oldp;
if(!SkipBracedSection(&p, 1))
{
ri.Printf(PRINT_WARNING, "WARNING: Ignoring shader file %s. Shader \"%s\" on line %d missing closing brace.\n",
filename, shaderName, shaderLine);
ri.FS_FreeFile(buffers[i]);
buffers[i] = NULL;
break;
}
}
@ -3008,7 +3018,7 @@ static void ScanAndLoadShaderFiles( void )
hash = generateHashValue(token, MAX_SHADERTEXT_HASH);
shaderTextHashTableSizes[hash]++;
size++;
SkipBracedSection(&p);
SkipBracedSection(&p, 0);
}
size += MAX_SHADERTEXT_HASH;
@ -3034,7 +3044,7 @@ static void ScanAndLoadShaderFiles( void )
hash = generateHashValue(token, MAX_SHADERTEXT_HASH);
shaderTextHashTable[hash][shaderTextHashTableSizes[hash]++] = oldp;
SkipBracedSection(&p);
SkipBracedSection(&p, 0);
}
return;

22
code/renderergl2/tr_shader.c
View file

@ -3018,7 +3018,7 @@ static char *FindShaderInShaderText( const char *shadername ) {
}
else {
// skip the definition
SkipBracedSection( &p );
SkipBracedSection( &p, 0 );
}
}
@ -3542,6 +3542,8 @@ static void ScanAndLoadShaderFiles( void )
int i;
char *oldp, *token, *hashMem, *textEnd;
int shaderTextHashTableSizes[MAX_SHADERTEXT_HASH], hash, size;
char shaderName[MAX_QPATH];
int shaderLine;
long sum = 0, summand;
// scan for shader files
@ -3585,6 +3587,7 @@ static void ScanAndLoadShaderFiles( void )
// Do a simple check on the shader structure in that file to make sure one bad shader file cannot fuck up all other shaders.
p = buffers[i];
COM_BeginParseSession(filename);
while(1)
{
token = COM_ParseExt(&p, qtrue);
@ -3592,7 +3595,8 @@ static void ScanAndLoadShaderFiles( void )
if(!*token)
break;
oldp = p;
Q_strncpyz(shaderName, token, sizeof(shaderName));
shaderLine = COM_GetCurrentParseLine();
token = COM_ParseExt(&p, qtrue);
if(token[0] != '{' || token[1] != '\0')
@ -3603,8 +3607,14 @@ static void ScanAndLoadShaderFiles( void )
break;
}
SkipBracedSection(&oldp);
p = oldp;
if(!SkipBracedSection(&p, 1))
{
ri.Printf(PRINT_WARNING, "WARNING: Ignoring shader file %s. Shader \"%s\" on line %d missing closing brace.\n",
filename, shaderName, shaderLine);
ri.FS_FreeFile(buffers[i]);
buffers[i] = NULL;
break;
}
}
@ -3648,7 +3658,7 @@ static void ScanAndLoadShaderFiles( void )
hash = generateHashValue(token, MAX_SHADERTEXT_HASH);
shaderTextHashTableSizes[hash]++;
size++;
SkipBracedSection(&p);
SkipBracedSection(&p, 0);
}
size += MAX_SHADERTEXT_HASH;
@ -3674,7 +3684,7 @@ static void ScanAndLoadShaderFiles( void )
hash = generateHashValue(token, MAX_SHADERTEXT_HASH);
shaderTextHashTable[hash][shaderTextHashTableSizes[hash]++] = oldp;
SkipBracedSection(&p);
SkipBracedSection(&p, 0);
}
return;