diff options
Diffstat (limited to '')
| -rw-r--r-- | src/gamma-linux-drm.c | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/src/gamma-linux-drm.c b/src/gamma-linux-drm.c index dbe01b5..fa0b517 100644 --- a/src/gamma-linux-drm.c +++ b/src/gamma-linux-drm.c @@ -24,6 +24,18 @@ #include "libgamma-error.h" #include <errno.h> +#include <limits.h> +#include <sys/stat.h> + +#include <xf86drm.h> +#include <xf86drmMode.h> + +#ifndef O_CLOEXEC +# define O_CLOEXEC 02000000 +#endif +#ifndef PATH_MAX +# define PATH_MAX 4096 +#endif /** @@ -76,6 +88,25 @@ void libgamma_linux_drm_method_capabilities(libgamma_method_capabilities_t* rest int libgamma_linux_drm_site_initialise(libgamma_site_state_t* restrict this, char* restrict site) { + char pathname[PATH_MAX]; + struct stat _attr; + + if (site != NULL) + return LIBGAMMA_NO_SUCH_SITE; + + /* Count the number of available graphics cards by + * stat:ing there existence in an API filesystem. */ + this->partitions_available = 0; + for (;;) + { + snprintf(pathname, sizeof(pathname) / sizeof(char), + DRM_DEV_NAME, DRM_DIR_NAME, (int)(this->partitions_available)); + if (stat(pathname, &_attr)) + break; + if (this->partitions_available++ > INT_MAX) + return LIBGAMMA_IMPOSSIBLE_AMOUNT; + } + return 0; } @@ -86,6 +117,7 @@ int libgamma_linux_drm_site_initialise(libgamma_site_state_t* restrict this, */ void libgamma_linux_drm_site_destroy(libgamma_site_state_t* restrict this) { + (void) this; } @@ -166,17 +198,7 @@ int libgamma_linux_drm_crtc_initialise(libgamma_crtc_state_t* restrict this, */ void libgamma_linux_drm_crtc_destroy(libgamma_crtc_state_t* restrict this) { -} - - -/** - * Release all resources held by a CRTC state - * and free the CRTC state pointer - * - * @param this The CRTC state - */ -void libgamma_linux_drm_crtc_free(libgamma_crtc_state_t* restrict this) -{ + (void) this; } |