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https://gitlab.freedesktop.org/wlroots/wlroots.git
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3c74bd0c91
Previously, we were copying wlr_output_state on the stack and patching it up to be guaranteed to have a proper drmModeModeInfo stored in it (and not a custom mode). Also, we had a bunch of helpers deriving DRM-specific information from the generic wlr_output_state. Copying the wlr_output_state worked fine so far, but with output layers we'll be getting a wl_list in there. An empty wl_list stores two pointers to itself, copying it on the stack blindly results in infinite loops in wl_list_for_each. To fix this, rework our DRM backend to stop copying wlr_output_state, instead add a new struct wlr_drm_connector_state which holds both the wlr_output_state and additional DRM-specific information.
29 lines
737 B
C
29 lines
737 B
C
#ifndef BACKEND_DRM_IFACE_H
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#define BACKEND_DRM_IFACE_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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struct wlr_drm_backend;
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struct wlr_drm_connector;
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struct wlr_drm_crtc;
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struct wlr_drm_connector_state;
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// Used to provide atomic or legacy DRM functions
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struct wlr_drm_interface {
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// Commit all pending changes on a CRTC.
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bool (*crtc_commit)(struct wlr_drm_connector *conn,
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const struct wlr_drm_connector_state *state, uint32_t flags,
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bool test_only);
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};
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extern const struct wlr_drm_interface atomic_iface;
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extern const struct wlr_drm_interface legacy_iface;
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bool drm_legacy_crtc_set_gamma(struct wlr_drm_backend *drm,
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struct wlr_drm_crtc *crtc, size_t size, uint16_t *lut);
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#endif
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