diff options
| -rw-r--r-- | src/Fl_Gl_Window.cxx | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/Fl_Gl_Window.cxx b/src/Fl_Gl_Window.cxx index 17cd1d3ea..8b0f17142 100644 --- a/src/Fl_Gl_Window.cxx +++ b/src/Fl_Gl_Window.cxx @@ -324,7 +324,7 @@ void Fl_Gl_Window::flush() { glDrawBuffer(GL_BACK); if (!SWAP_TYPE) { -#if defined (__APPLE_QUARTZ__) +#if defined (__APPLE_QUARTZ__) || defined (__linux__) SWAP_TYPE = COPY; #else SWAP_TYPE = UNDEFINED; @@ -334,6 +334,7 @@ void Fl_Gl_Window::flush() { if (!strcmp(c,"COPY")) SWAP_TYPE = COPY; else if (!strcmp(c, "NODAMAGE")) SWAP_TYPE = NODAMAGE; else if (!strcmp(c, "SWAP")) SWAP_TYPE = SWAP; + else SWAP_TYPE = UNDEFINED; } } @@ -350,7 +351,12 @@ void Fl_Gl_Window::flush() { if (damage() != FL_DAMAGE_OVERLAY || !save_valid) draw(); swap_buffers(); - } else { // SWAP_TYPE == UNDEFINED + } else if (SWAP_TYPE == SWAP){ + damage(FL_DAMAGE_ALL); + draw(); + if (overlay == this) draw_overlay(); + swap_buffers(); + } else if (SWAP_TYPE == UNDEFINED){ // SWAP_TYPE == UNDEFINED // If we are faking the overlay, use CopyPixels to act like // SWAP_TYPE == COPY. Otherwise overlay redraw is way too slow. @@ -386,7 +392,7 @@ void Fl_Gl_Window::flush() { } - if (overlay==this) { // fake overlay in front buffer + if (overlay==this && SWAP_TYPE != SWAP) { // fake overlay in front buffer glDrawBuffer(GL_FRONT); draw_overlay(); glDrawBuffer(GL_BACK); |