handle failure to get an sRGB framebuffer correctly

diff --git a/src/app.cc b/src/app.cc
index 95f7a05..ac6edd9 100644 (file)
--- a/src/app.cc
+++ b/src/app.cc
@@ -101,6 +101,8 @@ bool app_init(int argc, char **argv)
                printf("Framebuffer %s sRGB-capable\n", srgb_capable ? "is" : "is not");
                if(srgb_capable) {
                        glEnable(GL_FRAMEBUFFER_SRGB);
+               } else {
+                       fb_srgb = 0;
                }
        }