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drm: Add backdoor to disable liftoff caching for debugging

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This commit is contained in:
Joshua Ashton 2022-08-17 02:01:46 +00:00
parent 3cda5e8f2e
commit cb59480be0
1 changed files with 19 additions and 2 deletions
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21
src/drm.cpp
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@ -1445,6 +1445,20 @@ LiftoffStateCacheEntry FrameInfoToLiftoffStateCacheEntry( const FrameInfo_t *fra
return entry;
}
static bool env_to_bool(const char *env)
{
if (!env || !*env)
return false;
return !!atoi(env);
}
static bool is_liftoff_caching_enabled()
{
static bool disabled = env_to_bool(getenv("GAMESCOPE_LIFTOFF_CACHE_DISABLE"));
return !disabled;
}
static int
drm_prepare_liftoff( struct drm_t *drm, const struct FrameInfo_t *frameInfo, bool needs_modeset )
{
@ -1456,8 +1470,11 @@ drm_prepare_liftoff( struct drm_t *drm, const struct FrameInfo_t *frameInfo, boo
if (needs_modeset)
g_LiftoffStateCache.clear();
if (g_LiftoffStateCache.count(entry) != 0)
return -EINVAL;
if (is_liftoff_caching_enabled())
{
if (g_LiftoffStateCache.count(entry) != 0)
return -EINVAL;
}
for ( int i = 0; i < k_nMaxLayers; i++ )
{