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replaced a needless linear walk through the shader text uberbuffer with a lookup

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myT 2017-01-20 18:26:16 -08:00 committed by arQon
parent 26f2f7966c
commit 9b350a7d0c
1 changed files with 6 additions and 26 deletions

32
code/renderer/tr_shader.cpp
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@ -2048,42 +2048,22 @@ static shader_t* FinishShader()
///////////////////////////////////////////////////////////////
// scans the combined text of ALL shader files for the given shader name
// searches the combined text of ALL shader files for the given shader name
// return the body of the shader if found, else NULL
static const char* FindShaderInShaderText( const char* shadername )
{
const char* p;
const char* token;
int hash = Q_FileHash(shadername, MAX_SHADERTEXT_HASH);
const int hash = Q_FileHash( shadername, MAX_SHADERTEXT_HASH );
// since the hash table always contains all loaded shaders
// there's no need to actually scan through s_shaderText itself
for (int i = 0; shaderTextHashTable[hash][i]; i++) {
p = shaderTextHashTable[hash][i];
token = COM_ParseExt(&p, qtrue);
if ( !Q_stricmp( token, shadername ) ) {
return p;
}
}
if (!s_shaderText)
return NULL;
p = s_shaderText;
// look for label
while ( 1 ) {
token = COM_ParseExt( &p, qtrue );
if ( token[0] == 0 ) {
break;
}
const char* p = shaderTextHashTable[hash][i];
const char* const token = COM_ParseExt( &p, qtrue );
if ( !Q_stricmp( token, shadername ) ) {
return p;
}
else {
// skip the definition
SkipBracedSection( &p );
}
}
return NULL;