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drm: Allow to add additional modes

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This allows to add additional modes to the list of available video modes
using VESA Coordinated Video Timing information.

Closes #1080
This commit is contained in:
Guido Günther 2018-06-28 12:35:55 +02:00
parent 159835de24
commit 8d72090afe
2 changed files with 31 additions and 0 deletions
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27
backend/drm/drm.c
View file

@ -566,6 +566,33 @@ error_conn:
return false;
}
bool wlr_drm_connector_add_mode(struct wlr_output *output,
const drmModeModeInfo *modeinfo) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
assert(modeinfo);
if (modeinfo->type != DRM_MODE_TYPE_USERDEF) {
return false;
}
struct wlr_drm_mode *mode = calloc(1, sizeof(*mode));
if (!mode) {
return false;
}
memcpy(&mode->drm_mode, modeinfo, sizeof(*modeinfo));
mode->wlr_mode.width = mode->drm_mode.hdisplay;
mode->wlr_mode.height = mode->drm_mode.vdisplay;
mode->wlr_mode.refresh = mode->drm_mode.vrefresh;
wlr_log(L_INFO, "Registered custom mode "
"%"PRId32"x%"PRId32"@%"PRId32,
mode->wlr_mode.width, mode->wlr_mode.height,
mode->wlr_mode.refresh);
wl_list_insert(&conn->output.modes, &mode->wlr_mode.link);
return true;
}
static void drm_connector_transform(struct wlr_output *output,
enum wl_output_transform transform) {
output->transform = transform;

4
include/backend/drm/drm.h
View file

@ -143,5 +143,9 @@ void restore_drm_outputs(struct wlr_drm_backend *drm);
void scan_drm_connectors(struct wlr_drm_backend *state);
int handle_drm_event(int fd, uint32_t mask, void *data);
void enable_drm_connector(struct wlr_output *output, bool enable);
/**
* Add mode to the list of available modes
*/
bool wlr_drm_connector_add_mode(struct wlr_output *output, const drmModeModeInfo *mode);
#endif