wlroots-hyprland/include/backend/drm/util.h
emersion ee293fab58
backend/drm: fix GBM format mismatch
We create the EGL config with GBM_FORMAT_ARGB8888, but then initialize GBM BOs
with GBM_FORMAT_XRGB8888. This mismatch confuses Mesa.

Instead, we can always use GBM_FORMAT_ARGB8888, and use DRM_FORMAT_XRGB8888
when calling drmModeAddFB2.

Fixes https://github.com/swaywm/wlroots/issues/1438
2019-01-29 12:04:12 +01:00

41 lines
1.3 KiB
C

#ifndef BACKEND_DRM_UTIL_H
#define BACKEND_DRM_UTIL_H
#include <stdint.h>
#include <wlr/types/wlr_output.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
// Calculates a more accurate refresh rate (mHz) than what mode itself provides
int32_t calculate_refresh_rate(const drmModeModeInfo *mode);
// Populates the make/model/phys_{width,height} of output from the edid data
void parse_edid(struct wlr_output *restrict output, size_t len,
const uint8_t *data);
// Returns the string representation of a DRM output type
const char *conn_get_name(uint32_t type_id);
// Returns the DRM framebuffer id for a gbm_bo
uint32_t get_fb_for_bo(struct gbm_bo *bo, uint32_t drm_format);
// Part of match_obj
enum {
UNMATCHED = (uint32_t)-1,
SKIP = (uint32_t)-2,
};
/*
* Tries to match some DRM objects with some other DRM resource.
* e.g. Match CRTCs with Encoders, CRTCs with Planes.
*
* objs contains a bit array which resources it can be matched with.
* e.g. Bit 0 set means can be matched with res[0]
*
* res contains an index of which objs it is matched with or UNMATCHED.
*
* This solution is left in out.
* Returns the total number of matched solutions.
*/
size_t match_obj(size_t num_objs, const uint32_t objs[static restrict num_objs],
size_t num_res, const uint32_t res[static restrict num_res],
uint32_t out[static restrict num_res]);
#endif