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MaterialSystem: properly switch between static and dynamic texture streaming systems

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The engine has a bug where it would use GPU feedback even when a static precomputed texture streaming database file exists. If we have an STBSP file for the given level or override, load that in and disable GPU feedback so proper use of the static file could be made. Else we load gpu_driven.stbsp which is a dummy to enable the dynamic, GPU based texture streaming system.
This commit is contained in:
Kawe Mazidjatari 2025-01-03 15:19:48 +01:00
parent d20488c919
commit 36d2b3534a
1 changed files with 23 additions and 12 deletions
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35
src/materialsystem/cmaterialsystem.cpp
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@ -99,26 +99,37 @@ int CMaterialSystem::Shutdown(CMaterialSystem* thisptr)
// (overrides level name if stbsp field has value in prerequisites file)
// Input : *pszLevelName -
//---------------------------------------------------------------------------------
void StreamDB_Init(const char* pszLevelName)
static void StreamDB_Init(const char* const pszLevelName)
{
KeyValues* pSettingsKV = Mod_GetLevelSettings(pszLevelName);
KeyValues* const pSettingsKV = Mod_GetLevelSettings(pszLevelName);
const char* targetStreamDB = pszLevelName;
if (pSettingsKV)
{
KeyValues* pStreamKV = pSettingsKV->FindKey("StreamDB");
KeyValues* const pStreamKV = pSettingsKV->FindKey("StreamDB");
if (pStreamKV)
{
const char* pszColumnName = pStreamKV->GetString();
Msg(eDLL_T::MS, "StreamDB_Init: Loading override STBSP file '%s.stbsp'\n", pszColumnName);
v_StreamDB_Init(pszColumnName);
return;
}
targetStreamDB = pStreamKV->GetString();
}
Msg(eDLL_T::MS, "StreamDB_Init: Loading STBSP file '%s.stbsp'\n", pszLevelName);
v_StreamDB_Init(pszLevelName);
v_StreamDB_Init(targetStreamDB);
// If the requested STBSP file doesn't exist, load the dummy file to enable
// GPU driven texture streaming.
if (s_streamDataBase->fileHandle == FS_ASYNC_FILE_INVALID)
{
targetStreamDB = STBSP_GPU_DRIVEN_FILE;
v_StreamDB_Init(targetStreamDB);
gpu_driven_tex_stream->SetValue(true);
}
else
gpu_driven_tex_stream->SetValue(false);
if (s_streamDataBase->fileHandle != FS_ASYNC_FILE_INVALID)
Msg(eDLL_T::MS, "StreamDB_Init: Loaded STBSP file '%s.stbsp'\n", targetStreamDB);
else
Error(eDLL_T::MS, 0, "StreamDB_Init: STBSP file '%s.stbsp' not found; texture streaming unavailable\n", pszLevelName, STBSP_GPU_DRIVEN_FILE);
}
static ConVar stream_overlay_memory("stream_overlay_memory", "524288", FCVAR_DEVELOPMENTONLY, "Total string memory to allocate for the texture streaming debug overlay.");