diff --git a/cogl/cogl/driver/gl/gl/cogl-driver-gl.c b/cogl/cogl/driver/gl/gl/cogl-driver-gl.c index 05161824c..d39b986a3 100644 --- a/cogl/cogl/driver/gl/gl/cogl-driver-gl.c +++ b/cogl/cogl/driver/gl/gl/cogl-driver-gl.c @@ -407,14 +407,19 @@ _cogl_driver_update_features (CoglContext *ctx, COGL_FLAGS_SET (private_features, COGL_PRIVATE_FEATURE_MESA_PACK_INVERT, TRUE); - if (ctx->glGenRenderbuffers) + if (!ctx->glGenRenderbuffers) { - flags |= COGL_FEATURE_OFFSCREEN; - COGL_FLAGS_SET (ctx->features, COGL_FEATURE_ID_OFFSCREEN, TRUE); - COGL_FLAGS_SET (private_features, - COGL_PRIVATE_FEATURE_QUERY_FRAMEBUFFER_BITS, - TRUE); + g_set_error (error, + COGL_DRIVER_ERROR, + COGL_DRIVER_ERROR_NO_SUITABLE_DRIVER_FOUND, + "Framebuffer objects are required to use the GL driver"); + return FALSE; } + flags |= COGL_FEATURE_OFFSCREEN; + COGL_FLAGS_SET (ctx->features, COGL_FEATURE_ID_OFFSCREEN, TRUE); + COGL_FLAGS_SET (private_features, + COGL_PRIVATE_FEATURE_QUERY_FRAMEBUFFER_BITS, + TRUE); if (ctx->glBlitFramebuffer) COGL_FLAGS_SET (private_features,