diff options
Diffstat (limited to 'src/egl/main/egldisplay.c')
-rw-r--r-- | src/egl/main/egldisplay.c | 53 |
1 files changed, 46 insertions, 7 deletions
diff --git a/src/egl/main/egldisplay.c b/src/egl/main/egldisplay.c index cc0f03e01b..565e44d2d2 100644 --- a/src/egl/main/egldisplay.c +++ b/src/egl/main/egldisplay.c @@ -233,17 +233,53 @@ _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy) /** - * Link a resource to a display. + * Initialize a display resource. */ void -_eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy) +_eglInitResource(_EGLResource *res, EGLint size, _EGLDisplay *dpy) { - assert(!res->Display || res->Display == dpy); - + memset(res, 0, size); res->Display = dpy; + res->RefCount = 1; +} + + +/** + * Increment reference count for the resource. + */ +void +_eglGetResource(_EGLResource *res) +{ + assert(res && res->RefCount > 0); + /* hopefully a resource is always manipulated with its display locked */ + res->RefCount++; +} + + +/** + * Decrement reference count for the resource. + */ +EGLBoolean +_eglPutResource(_EGLResource *res) +{ + assert(res && res->RefCount > 0); + res->RefCount--; + return (!res->RefCount); +} + + +/** + * Link a resource to its display. + */ +void +_eglLinkResource(_EGLResource *res, _EGLResourceType type) +{ + assert(res->Display); + res->IsLinked = EGL_TRUE; - res->Next = dpy->ResourceLists[type]; - dpy->ResourceLists[type] = res; + res->Next = res->Display->ResourceLists[type]; + res->Display->ResourceLists[type] = res; + _eglGetResource(res); } @@ -270,6 +306,9 @@ _eglUnlinkResource(_EGLResource *res, _EGLResourceType type) } res->Next = NULL; - /* do not reset res->Display */ res->IsLinked = EGL_FALSE; + _eglPutResource(res); + + /* We always unlink before destroy. The driver still owns a reference */ + assert(res->RefCount); } |