diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mac_gl.m | 3 | ||||
| -rw-r--r-- | src/win_gl.c | 3 | ||||
| -rw-r--r-- | src/x11_gl.c | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/src/mac_gl.m b/src/mac_gl.m index dd94e54..25704c3 100644 --- a/src/mac_gl.m +++ b/src/mac_gl.m @@ -135,6 +135,9 @@ static PuglStatus puglMacGlEnter(PuglView* view, const PuglExposeEvent* PUGL_UNUSED(expose)) { PuglOpenGLView* const drawView = (PuglOpenGLView*)view->impl->drawView; + if (!drawView) { + return PUGL_FAILURE; + } [[drawView openGLContext] makeCurrentContext]; return PUGL_SUCCESS; diff --git a/src/win_gl.c b/src/win_gl.c index 0a035a1..a755020 100644 --- a/src/win_gl.c +++ b/src/win_gl.c @@ -258,6 +258,9 @@ static PuglStatus puglWinGlEnter(PuglView* view, const PuglExposeEvent* expose) { PuglWinGlSurface* surface = (PuglWinGlSurface*)view->impl->surface; + if (!surface || !surface->hglrc) { + return PUGL_FAILURE; + } wglMakeCurrent(view->impl->hdc, surface->hglrc); diff --git a/src/x11_gl.c b/src/x11_gl.c index 1ebe829..41007cd 100644 --- a/src/x11_gl.c +++ b/src/x11_gl.c @@ -103,6 +103,9 @@ static PuglStatus puglX11GlEnter(PuglView* view, const PuglExposeEvent* PUGL_UNUSED(expose)) { PuglX11GlSurface* surface = (PuglX11GlSurface*)view->impl->surface; + if (!surface || !surface->ctx) { + return PUGL_FAILURE; + } return glXMakeCurrent(view->impl->display, view->impl->win, surface->ctx) ? PUGL_SUCCESS |