render: introduce wlr_allocator

This commit is contained in:
Simon Ser 2020-06-01 19:48:39 +02:00
parent aaa3fcf66f
commit f47445f142
3 changed files with 63 additions and 0 deletions

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@ -0,0 +1,42 @@
#ifndef RENDER_ALLOCATOR
#define RENDER_ALLOCATOR
#include <stdbool.h>
#include <wayland-server-core.h>
#include <wlr/render/dmabuf.h>
#include <wlr/render/drm_format_set.h>
struct wlr_allocator;
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;
struct {
struct wl_signal destroy;
} events;
};
/**
* 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);
#endif

20
render/allocator.c Normal file
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#include <assert.h>
#include <stdlib.h>
#include "render/allocator.h"
void wlr_allocator_init(struct wlr_allocator *alloc,
const struct wlr_allocator_interface *impl) {
assert(impl && impl->destroy && impl->create_buffer);
alloc->impl = impl;
wl_signal_init(&alloc->events.destroy);
}
void wlr_allocator_destroy(struct wlr_allocator *alloc) {
wl_signal_emit(&alloc->events.destroy, NULL);
alloc->impl->destroy(alloc);
}
struct wlr_buffer *wlr_allocator_create_buffer(struct wlr_allocator *alloc,
int width, int height, const struct wlr_drm_format *format) {
return alloc->impl->create_buffer(alloc, width, height, format);
}

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@ -1,4 +1,5 @@
wlr_files += files(
'allocator.c',
'dmabuf.c',
'egl.c',
'drm_format_set.c',