wlroots/include/wlr/render/allocator.h

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/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_ALLOCATOR_H
#define WLR_ALLOCATOR_H
#include <wayland-server-core.h>
struct wlr_allocator;
struct wlr_backend;
struct wlr_drm_format;
struct wlr_renderer;
struct wlr_allocator_interface {
struct wlr_buffer *(*create_buffer)(struct wlr_allocator *alloc,
int width, int height, const struct wlr_drm_format *format);
void (*destroy)(struct wlr_allocator *alloc);
};
void wlr_allocator_init(struct wlr_allocator *alloc,
const struct wlr_allocator_interface *impl, uint32_t buffer_caps);
struct wlr_allocator {
const struct wlr_allocator_interface *impl;
// Capabilities of the buffers created with this allocator
uint32_t buffer_caps;
struct {
struct wl_signal destroy;
} events;
};
/**
* Creates the adequate wlr_allocator given a backend and a renderer
*/
struct wlr_allocator *wlr_allocator_autocreate(struct wlr_backend *backend,
struct wlr_renderer *renderer);
/**
* Destroy the allocator.
*/
void wlr_allocator_destroy(struct wlr_allocator *alloc);
/**
* Allocate a new buffer.
*
* When the caller is done with it, they must unreference it by calling
* wlr_buffer_drop.
*/
struct wlr_buffer *wlr_allocator_create_buffer(struct wlr_allocator *alloc,
int width, int height, const struct wlr_drm_format *format);
#endif