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de1bbbb4e2
Allows CPU access of the buffer. Can be useful for multi-GPU copies via CPU. Might be quite slow, and might fail for an arbitrary driver-specific reason, so not advertised in wlr_allocator.buffer_caps.
35 lines
768 B
C
35 lines
768 B
C
#ifndef RENDER_ALLOCATOR_GBM_H
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#define RENDER_ALLOCATOR_GBM_H
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#include <gbm.h>
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#include <wlr/render/dmabuf.h>
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#include <wlr/types/wlr_buffer.h>
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#include "render/allocator/allocator.h"
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struct wlr_gbm_buffer {
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struct wlr_buffer base;
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struct wl_list link; // wlr_gbm_allocator.buffers
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struct gbm_bo *gbm_bo; // NULL if the gbm_device has been destroyed
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void *gbm_map_data; // NULL unless we have an active mapping
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struct wlr_dmabuf_attributes dmabuf;
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};
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struct wlr_gbm_allocator {
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struct wlr_allocator base;
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int fd;
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struct gbm_device *gbm_device;
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struct wl_list buffers; // wlr_gbm_buffer.link
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};
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/**
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* Creates a new GBM allocator from a DRM FD.
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*
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* Takes ownership over the FD.
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*/
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struct wlr_allocator *wlr_gbm_allocator_create(int drm_fd);
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#endif
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