wlroots-hyprland/include/render/allocator/allocator.h

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#ifndef RENDER_ALLOCATOR_ALLOCATOR_H
#define RENDER_ALLOCATOR_ALLOCATOR_H
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#include <stdbool.h>
#include <wayland-server-core.h>
#include <wlr/render/drm_format_set.h>
struct wlr_allocator;
struct wlr_backend;
struct wlr_renderer;
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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);
};
struct wlr_allocator {
const struct wlr_allocator_interface *impl;
// Capabilites of the buffers created with this allocator
uint32_t buffer_caps;
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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);
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/**
* 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);
// For wlr_allocator implementors
void wlr_allocator_init(struct wlr_allocator *alloc,
const struct wlr_allocator_interface *impl, uint32_t buffer_caps);
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struct wlr_allocator *allocator_autocreate_with_drm_fd(
struct wlr_backend *backend, struct wlr_renderer *renderer, int drm_fd);
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#endif