diff options
Diffstat (limited to 'src/egl/main/eglapi.c')
| -rw-r--r-- | src/egl/main/eglapi.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c index 588c6a5f1eb..61a3220705d 100644 --- a/src/egl/main/eglapi.c +++ b/src/egl/main/eglapi.c @@ -890,6 +890,32 @@ eglQueryContext(EGLDisplay dpy, EGLContext ctx, } +/* In EGL specs 1.4 and 1.5, at the end of sections 3.5.1 and 3.5.4, it says + * that if native_surface was already used to create a window or pixmap, we + * can't create a new one. This is what this function checks for. + */ +static bool +_eglNativeSurfaceAlreadyUsed(_EGLDisplay *disp, void *native_surface) +{ + _EGLResource *list; + + list = disp->ResourceLists[_EGL_RESOURCE_SURFACE]; + while (list) { + _EGLSurface *surf = (_EGLSurface *) list; + + list = list->Next; + + if (surf->Type == EGL_PBUFFER_BIT) + continue; + + if (surf->NativeSurface == native_surface) + return true; + } + + return false; +} + + static EGLSurface _eglCreateWindowSurfaceCommon(_EGLDisplay *disp, EGLConfig config, void *native_window, const EGLint *attrib_list) @@ -926,6 +952,9 @@ _eglCreateWindowSurfaceCommon(_EGLDisplay *disp, EGLConfig config, if ((conf->SurfaceType & EGL_WINDOW_BIT) == 0) RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SURFACE); + if (_eglNativeSurfaceAlreadyUsed(disp, native_window)) + RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE); + surf = drv->API.CreateWindowSurface(drv, disp, conf, native_window, attrib_list); ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE; @@ -1051,6 +1080,9 @@ _eglCreatePixmapSurfaceCommon(_EGLDisplay *disp, EGLConfig config, if (native_pixmap == NULL) RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); + if (_eglNativeSurfaceAlreadyUsed(disp, native_pixmap)) + RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE); + surf = drv->API.CreatePixmapSurface(drv, disp, conf, native_pixmap, attrib_list); ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE; |