diff options
Diffstat (limited to 'src/egl/main/eglsurface.c')
| -rw-r--r-- | src/egl/main/eglsurface.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c index e7a1a8329e..940a1b760c 100644 --- a/src/egl/main/eglsurface.c +++ b/src/egl/main/eglsurface.c @@ -15,6 +15,22 @@ #include "eglsurface.h" +static void +_eglClampSwapInterval(_EGLSurface *surf, EGLint interval) +{ + EGLint bound = GET_CONFIG_ATTRIB(surf->Config, EGL_MAX_SWAP_INTERVAL); + if (interval >= bound) { + interval = bound; + } + else { + bound = GET_CONFIG_ATTRIB(surf->Config, EGL_MIN_SWAP_INTERVAL); + if (interval < bound) + interval = bound; + } + surf->SwapInterval = interval; +} + + /** * Do error check on parameters and initialize the given _EGLSurface object. * \return EGL_TRUE if no errors, EGL_FALSE otherwise. @@ -194,7 +210,9 @@ _eglInitSurface(_EGLDriver *drv, _EGLSurface *surf, EGLint type, surf->TextureTarget = texTarget; surf->MipmapTexture = mipmapTex; surf->MipmapLevel = 0; - surf->SwapInterval = 0; + /* the default swap interval is 1 */ + _eglClampSwapInterval(surf, 1); + #ifdef EGL_VERSION_1_2 surf->SwapBehavior = EGL_BUFFER_DESTROYED; /* XXX ok? */ surf->HorizontalResolution = EGL_UNKNOWN; /* set by caller */ @@ -466,11 +484,10 @@ _eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLBoolean -_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, EGLint interval) +_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, + EGLint interval) { - _EGLSurface *surf = _eglGetCurrentSurface(EGL_DRAW); - if (surf) - surf->SwapInterval = interval; + _eglClampSwapInterval(surf, interval); return EGL_TRUE; } |