diff options
Diffstat (limited to 'backend/drm/util.c')
| -rw-r--r-- | backend/drm/util.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/backend/drm/util.c b/backend/drm/util.c index 2083e617..3f460317 100644 --- a/backend/drm/util.c +++ b/backend/drm/util.c @@ -30,6 +30,25 @@ int32_t calculate_refresh_rate(const drmModeModeInfo *mode) { return refresh; } +enum wlr_output_mode_aspect_ratio get_picture_aspect_ratio(const drmModeModeInfo *mode) { + switch (mode->flags & DRM_MODE_FLAG_PIC_AR_MASK) { + case DRM_MODE_FLAG_PIC_AR_NONE: + return WLR_OUTPUT_MODE_ASPECT_RATIO_NONE; + case DRM_MODE_FLAG_PIC_AR_4_3: + return WLR_OUTPUT_MODE_ASPECT_RATIO_4_3; + case DRM_MODE_FLAG_PIC_AR_16_9: + return WLR_OUTPUT_MODE_ASPECT_RATIO_16_9; + case DRM_MODE_FLAG_PIC_AR_64_27: + return WLR_OUTPUT_MODE_ASPECT_RATIO_64_27; + case DRM_MODE_FLAG_PIC_AR_256_135: + return WLR_OUTPUT_MODE_ASPECT_RATIO_256_135; + default: + wlr_log(WLR_ERROR, "Unknown mode picture aspect ratio: %u", + mode->flags & DRM_MODE_FLAG_PIC_AR_MASK); + return WLR_OUTPUT_MODE_ASPECT_RATIO_NONE; + } +} + static const char *get_manufacturer(struct udev_hwdb *hwdb, uint16_t code) { static char pnp_id[4]; |