78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
#ifndef TYPES_WLR_BUFFER
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#define TYPES_WLR_BUFFER
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#include <wlr/types/wlr_buffer.h>
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/**
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* A read-only buffer that holds a data pointer.
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*
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* This is suitable for passing raw pixel data to a function that accepts a
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* wlr_buffer.
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*/
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struct wlr_readonly_data_buffer {
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struct wlr_buffer base;
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const void *data;
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uint32_t format;
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size_t stride;
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void *saved_data;
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};
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/**
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* Wraps a read-only data pointer into a wlr_buffer. The data pointer may be
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* accessed until readonly_data_buffer_drop() is called.
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*/
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struct wlr_readonly_data_buffer *readonly_data_buffer_create(uint32_t format,
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size_t stride, uint32_t width, uint32_t height, const void *data);
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/**
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* Drops ownership of the buffer (see wlr_buffer_drop() for more details) and
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* perform a copy of the data pointer if a consumer still has the buffer locked.
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*/
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bool readonly_data_buffer_drop(struct wlr_readonly_data_buffer *buffer);
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struct wlr_dmabuf_buffer {
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struct wlr_buffer base;
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struct wlr_dmabuf_attributes dmabuf;
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bool saved;
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};
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/**
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* Wraps a DMA-BUF into a wlr_buffer. The DMA-BUF may be accessed until
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* dmabuf_buffer_drop() is called.
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*/
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struct wlr_dmabuf_buffer *dmabuf_buffer_create(
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struct wlr_dmabuf_attributes *dmabuf);
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/**
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* Drops ownership of the buffer (see wlr_buffer_drop() for more details) and
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* takes a reference to the DMA-BUF (by dup'ing its file descriptors) if a
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* consumer still has the buffer locked.
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*/
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bool dmabuf_buffer_drop(struct wlr_dmabuf_buffer *buffer);
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/**
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* Check whether a buffer is fully opaque.
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*
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* When true is returned, the buffer is guaranteed to be fully opaque, but the
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* reverse is not true: false may be returned in cases where the buffer is fully
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* opaque.
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*/
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bool buffer_is_opaque(struct wlr_buffer *buffer);
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/**
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* Creates a struct wlr_client_buffer from a given struct wlr_buffer by creating
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* a texture from it, and copying its struct wl_resource.
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*/
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struct wlr_client_buffer *wlr_client_buffer_create(struct wlr_buffer *buffer,
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struct wlr_renderer *renderer);
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/**
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* Try to update the buffer's content.
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*
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* Fails if there's more than one reference to the buffer or if the texture
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* isn't mutable.
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*/
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bool wlr_client_buffer_apply_damage(struct wlr_client_buffer *client_buffer,
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struct wlr_buffer *next, const pixman_region32_t *damage);
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#endif
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