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This is a type which manages gbm_surfaces and imported dmabufs in the same place, and makes the lifetime management between the two shared. It should lead to easier to understand code, and fewer special cases. This also contains a fair bit of refactoring to start using this new type. Co-authored-by: Simon Ser <contact@emersion.fr>
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
#ifndef BACKEND_DRM_UTIL_H
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#define BACKEND_DRM_UTIL_H
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#include <stdint.h>
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#include <wlr/types/wlr_output.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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// Calculates a more accurate refresh rate (mHz) than what mode itself provides
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int32_t calculate_refresh_rate(const drmModeModeInfo *mode);
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// Populates the make/model/phys_{width,height} of output from the edid data
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void parse_edid(struct wlr_output *restrict output, size_t len,
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const uint8_t *data);
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// Returns the string representation of a DRM output type
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const char *conn_get_name(uint32_t type_id);
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// Returns the DRM framebuffer id for a gbm_bo
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uint32_t get_fb_for_bo(struct gbm_bo *bo, bool with_modifiers);
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// Part of match_obj
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enum {
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UNMATCHED = (uint32_t)-1,
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SKIP = (uint32_t)-2,
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};
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/*
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* Tries to match some DRM objects with some other DRM resource.
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* e.g. Match CRTCs with Encoders, CRTCs with Planes.
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*
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* objs contains a bit array which resources it can be matched with.
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* e.g. Bit 0 set means can be matched with res[0]
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*
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* res contains an index of which objs it is matched with or UNMATCHED.
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*
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* This solution is left in out.
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* Returns the total number of matched solutions.
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*/
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size_t match_obj(size_t num_objs, const uint32_t objs[static restrict num_objs],
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size_t num_res, const uint32_t res[static restrict num_res],
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uint32_t out[static restrict num_res]);
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#endif
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