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25 lines
759 B
C
25 lines
759 B
C
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#ifndef BACKEND_DRM_BO_HANDLE_TABLE_H
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#define BACKEND_DRM_BO_HANDLE_TABLE_H
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/**
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* Table performing reference counting for buffer object handles.
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*
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* The BO handles are allocated incrementally and are recycled by the kernel,
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* so a simple array is used.
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*
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* This design is inspired from amdgpu's code in libdrm:
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* https://gitlab.freedesktop.org/mesa/drm/-/blob/1a4c0ec9aea13211997f982715fe5ffcf19dd067/amdgpu/handle_table.c
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*/
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struct wlr_drm_bo_handle_table {
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size_t *nrefs;
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size_t len;
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};
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void drm_bo_handle_table_finish(struct wlr_drm_bo_handle_table *table);
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bool drm_bo_handle_table_ref(struct wlr_drm_bo_handle_table *table,
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uint32_t handle);
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size_t drm_bo_handle_table_unref(struct wlr_drm_bo_handle_table *table,
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uint32_t handle);
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#endif
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