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options: reject invalid backend earlier

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Unsupported backends were rejected when we try to initialize them, now
we reject them in the option parsing phase.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2019-11-10 04:59:55 +00:00
parent 6efd88b82f
commit 2848b24a57
3 changed files with 23 additions and 11 deletions
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12
src/options.c
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@ -10,6 +10,7 @@
#include <unistd.h>
#include <xcb/render.h> // for xcb_render_fixed_t, XXX
#include "backend/backend.h"
#include "common.h"
#include "config.h"
#include "log.h"
@ -480,7 +481,7 @@ bool get_early_config(int argc, char *const *argv, char **config_file, bool *all
/**
* Process arguments and configuration files.
*/
void get_cfg(options_t *opt, int argc, char *const *argv, bool shadow_enable,
bool get_cfg(options_t *opt, int argc, char *const *argv, bool shadow_enable,
bool fading_enable, bool conv_kern_hasneg, win_option_mask_t *winopt_mask) {
int o = 0, longopt_idx = -1;
@ -822,6 +823,13 @@ void get_cfg(options_t *opt, int argc, char *const *argv, bool shadow_enable,
log_warn("--monitor-repaint has no effect when backend is not xrender");
}
if (opt->experimental_backends && !backend_list[opt->backend]) {
log_error("Backend \"%s\" is not available as part of the experimental "
"backends.",
BACKEND_STRS[opt->backend]);
return false;
}
// Range checking and option assignments
opt->fade_delta = max2(opt->fade_delta, 1);
opt->shadow_radius = max2(opt->shadow_radius, 0);
@ -880,6 +888,8 @@ void get_cfg(options_t *opt, int argc, char *const *argv, bool shadow_enable,
log_warn("A convolution kernel with negative values may not work "
"properly under X Render backend.");
}
return true;
}
// vim: set noet sw=8 ts=8 :