diff options
Diffstat (limited to 'compton.c')
| -rw-r--r-- | compton.c | 24 |
1 files changed, 19 insertions, 5 deletions
@@ -1736,7 +1736,6 @@ paint_all(session_t *ps, XserverRegion region, win *t) { } // Free up all temporary regions - XFixesDestroyRegion(ps->dpy, region); XFixesDestroyRegion(ps->dpy, reg_tmp); XFixesDestroyRegion(ps->dpy, reg_tmp2); @@ -1783,7 +1782,10 @@ paint_all(session_t *ps, XserverRegion region, win *t) { break; #ifdef CONFIG_VSYNC_OPENGL case BKEND_GLX: - glXSwapBuffers(ps->dpy, get_tgt_window(ps)); + if (ps->o.glx_use_copysubbuffermesa) + glx_swap_copysubbuffermesa(ps, region); + else + glXSwapBuffers(ps->dpy, get_tgt_window(ps)); break; #endif default: @@ -1802,6 +1804,8 @@ paint_all(session_t *ps, XserverRegion region, win *t) { } #endif + XFixesDestroyRegion(ps->dpy, region); + #ifdef DEBUG_REPAINT print_timestamp(ps); struct timespec now = get_time_timespec(); @@ -4151,9 +4155,14 @@ usage(void) { " negative effect on performance. (My test shows a 10% slowdown.)\n" "--glx-copy-from-front\n" " GLX backend: Copy unmodified regions from front buffer instead of\n" - " redrawing them all. My tests show a 10% decrease in performance\n" - " when the whole screen is modified, but a 20% increase when only 1/4\n" - " is, so this optimization is not enabled by default.\n" + " redrawing them all. My tests with nvidia-drivers show a 10% decrease\n" + " in performance when the whole screen is modified, but a 20% increase\n" + " when only 1/4 is. My tests on nouveau show terrible slowdown.\n" + "--glx-use-copysubbuffermesa\n" + " GLX backend: Use MESA_copy_sub_buffer to do partial screen update.\n" + " My tests on nouveau shows a 200% performance boost when only 1/4 of\n" + " the screen is updated. May break VSync and is not available on some\n" + " drivers. Overrides --glx-copy-from-front.\n" #undef WARNING #ifndef CONFIG_DBUS #define WARNING WARNING_DISABLED @@ -4620,6 +4629,7 @@ get_cfg(session_t *ps, int argc, char *const *argv, bool first_pass) { { "glx-copy-from-front", no_argument, NULL, 292 }, { "benchmark", required_argument, NULL, 293 }, { "benchmark-wid", required_argument, NULL, 294 }, + { "glx-use-copysubbuffermesa", no_argument, NULL, 295 }, // Must terminate with a NULL entry { NULL, 0, NULL, 0 }, }; @@ -4898,6 +4908,10 @@ get_cfg(session_t *ps, int argc, char *const *argv, bool first_pass) { // --benchmark-wid ps->o.benchmark_wid = strtol(optarg, NULL, 0); break; + case 295: + // --glx-use-copysubbuffermesa + ps->o.glx_use_copysubbuffermesa = true; + break; default: usage(); break; |