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options: enable use-damage by default

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Since user reports indicate it has real performance benefits.

Also add a command line flag for turning use-damage off.

Fixes #242

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2019-09-29 00:48:01 +01:00
parent a69ed89114
commit 93f0d80572
3 changed files with 12 additions and 5 deletions
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1
src/config.c
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@ -513,6 +513,7 @@ char *parse_config(options_t *opt, const char *config_file, bool *shadow_enable,
.refresh_rate = 0,
.sw_opti = false,
.use_damage = true,
.shadow_red = 0.0,
.shadow_green = 0.0,

12
src/options.c
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@ -283,9 +283,11 @@ static void usage(int ret) {
" known to break things on some drivers (LLVMpipe, xf86-video-intel,\n"
" etc.).\n"
"\n"
"--use-damage\n"
" Use the damage information to limit rendering to parts of the screen\n"
" that has actually changed. Potentially improves the performance.\n"
"--no-use-damage\n"
" Disable the use of damage information. This cause the whole screen to\n"
" be redrawn everytime, instead of the part of the screen that has\n"
" actually changed. Potentially degrades the performance, but might fix\n"
" some artifacts.\n"
"\n"
"--xrender-sync-fence\n"
" Additionally use X Sync fence to sync clients' draw calls. Needed\n"
@ -412,6 +414,7 @@ static const struct option longopts[] = {
{"log-level", required_argument, NULL, 321},
{"log-file", required_argument, NULL, 322},
{"use-damage", no_argument, NULL, 323},
{"no-use-damage", no_argument, NULL, 324},
{"experimental-backends", no_argument, NULL, 733},
{"monitor-repaint", no_argument, NULL, 800},
{"diagnostics", no_argument, NULL, 801},
@ -782,6 +785,9 @@ void get_cfg(options_t *opt, int argc, char *const *argv, bool shadow_enable,
}
P_CASEBOOL(319, no_x_selection);
P_CASEBOOL(323, use_damage);
case 324:
opt->use_damage = false;
break;
P_CASEBOOL(733, experimental_backends);
P_CASEBOOL(800, monitor_repaint);
case 801: opt->print_diagnostics = true; break;