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Fall back to top-level directory when looking for resources (Fixes #2169)

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This commit is contained in:
scrawl 2015-01-02 00:17:51 +01:00
parent ac7c2a1473
commit 4a734f5cd3
1 changed files with 40 additions and 7 deletions
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47
components/misc/resourcehelpers.cpp
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@ -4,6 +4,29 @@
#include <OgreResourceGroupManager.h>
namespace
{
struct MatchPathSeparator
{
bool operator()( char ch ) const
{
return ch == '\\' || ch == '/';
}
};
std::string
getBasename( std::string const& pathname )
{
return std::string(
std::find_if( pathname.rbegin(), pathname.rend(),
MatchPathSeparator() ).base(),
pathname.end() );
}
}
bool Misc::ResourceHelpers::changeExtensionToDds(std::string &path)
{
Ogre::String::size_type pos = path.rfind('.');
@ -40,14 +63,24 @@ std::string Misc::ResourceHelpers::correctResourcePath(const std::string &topLev
// since we know all (GOTY edition or less) textures end
// in .dds, we change the extension
if (changeExtensionToDds(correctedPath))
bool changedToDds = changeExtensionToDds(correctedPath);
if (Ogre::ResourceGroupManager::getSingleton().resourceExistsInAnyGroup(correctedPath))
return correctedPath;
// if it turns out that the above wasn't true in all cases (not for vanilla, but maybe mods)
// verify, and revert if false (this call succeeds quickly, but fails slowly)
if (changedToDds && Ogre::ResourceGroupManager::getSingleton().resourceExistsInAnyGroup(origExt))
return origExt;
// fall back to a resource in the top level directory if it exists
std::string fallback = topLevelDirectory + "\\" + getBasename(correctedPath);
if (Ogre::ResourceGroupManager::getSingleton().resourceExistsInAnyGroup(fallback))
return fallback;
if (changedToDds)
{
// if it turns out that the above wasn't true in all cases (not for vanilla, but maybe mods)
// verify, and revert if false (this call succeeds quickly, but fails slowly)
if(!Ogre::ResourceGroupManager::getSingleton().resourceExistsInAnyGroup(correctedPath))
{
return origExt;
}
fallback = topLevelDirectory + "\\" + getBasename(origExt);
if (Ogre::ResourceGroupManager::getSingleton().resourceExistsInAnyGroup(fallback))
return fallback;
}
return correctedPath;