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drm_common: remove hard dependency on drmIsKMS()

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ae768a1e14 forgot to bump the required
libdrm version however Debian 11 just barely misses the requirement,
which is a good reason not to require it unconditionally anyway.
This commit is contained in:
sfan5 2022-08-11 14:40:15 +02:00
parent 5f6e8f856c
commit f2ef942ef5
3 changed files with 30 additions and 5 deletions
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10
meson.build
View File

@ -952,6 +952,15 @@ if drm['use']
'video/out/vo_drm.c')
endif
# This can be removed roughly when Debian 12 is released.
drm_is_kms = {
'name': 'drm-is-kms',
'use': drm['use'] and drm['deps'].version().version_compare('>= 2.4.105')
}
if drm_is_kms['use']
features += drm_is_kms['name']
endif
gbm = dependency('gbm', version: '>=17.1.0', required: get_option('gbm'))
if gbm.found()
dependencies += gbm
@ -1745,6 +1754,7 @@ conf_data.set10('HAVE_DMABUF_INTEROP_GL', dmabuf_interop_gl['use'])
conf_data.set10('HAVE_DMABUF_INTEROP_PL', dmabuf_interop_pl['use'])
conf_data.set10('HAVE_DOS_PATHS', win32)
conf_data.set10('HAVE_DRM', drm['use'])
conf_data.set10('HAVE_DRM_IS_KMS', drm_is_kms['use'])
conf_data.set10('HAVE_DVBIN', dvbin.allowed())
conf_data.set10('HAVE_DVDNAV', dvdnav.found() and dvdread.found())
conf_data.set10('HAVE_EGL', egl['use'])

19
video/out/drm_common.c
View File

@ -523,6 +523,19 @@ static int open_card_path(const char *path)
return open(path, O_RDWR | O_CLOEXEC);
}
static bool card_supports_kms(const char *path)
{
#if HAVE_DRM_IS_KMS
int fd = open_card_path(path);
bool ret = fd != -1 && drmIsKMS(fd);
if (fd != -1)
close(fd);
return ret;
#else
return true;
#endif
}
static char *get_primary_device_path(struct mp_log *log, int *card_no)
{
drmDevice *devices[DRM_MAX_MINOR] = { 0 };
@ -558,11 +571,7 @@ static char *get_primary_device_path(struct mp_log *log, int *card_no)
const char *primary_node_path = dev->nodes[DRM_NODE_PRIMARY];
int fd = open_card_path(primary_node_path);
const int is_kms = fd != -1 && drmIsKMS(fd);
if (fd != -1)
close(fd);
if (!is_kms) {
if (!card_supports_kms(primary_node_path)) {
if (card_no_given) {
mp_err(log,
"DRM card number %d given, yet it does not support "

6
wscript
View File

@ -792,6 +792,12 @@ video_output_features = [
'desc': 'dmabuf libplacebo interop',
'deps': 'vaapi-libplacebo',
'func': check_true,
}, {
# This can be removed roughly when Debian 12 is released.
'name': 'drm-is-kms',
'desc': 'drmIsKMS() function',
'deps': 'drm',
'func': check_pkg_config('libdrm', '>= 2.4.105'),
}
]