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Diffstat (limited to '')
-rw-r--r-- | libgamma_linux_drm_crtc_initialise.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/libgamma_linux_drm_crtc_initialise.c b/libgamma_linux_drm_crtc_initialise.c new file mode 100644 index 0000000..022429b --- /dev/null +++ b/libgamma_linux_drm_crtc_initialise.c @@ -0,0 +1,24 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +/** + * Initialise an allocated CRTC state + * + * @param this The CRTC state to initialise + * @param partition The partition state for the partition that the CRTC belongs to + * @param crtc The the index of the CRTC within the site + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library + */ +int +libgamma_linux_drm_crtc_initialise(libgamma_crtc_state_t *restrict this, + libgamma_partition_state_t *restrict partition, size_t crtc) +{ + libgamma_drm_card_data_t *restrict card = partition->data; + + if (crtc >= partition->crtcs_available) + return LIBGAMMA_NO_SUCH_CRTC; + this->data = (void*)(size_t)card->res->crtcs[crtc]; + return 0; +} |