wlseeds/include/backend/drm/renderer.h

#ifndef BACKEND_DRM_RENDERER_H
#define BACKEND_DRM_RENDERER_H

#include <stdbool.h>
#include <stdint.h>
#include <wlr/backend.h>
#include <wlr/render/wlr_renderer.h>

struct wlr_drm_backend;
struct wlr_drm_plane;
struct wlr_buffer;

struct wlr_drm_renderer {
	struct wlr_drm_backend *backend;

	struct wlr_renderer *wlr_rend;
	struct wlr_allocator *allocator;
};

struct wlr_drm_surface {
	struct wlr_drm_renderer *renderer;
	struct wlr_swapchain *swapchain;
};

struct wlr_drm_fb {
	struct wlr_buffer *wlr_buf;
	struct wlr_addon addon;
	struct wlr_drm_backend *backend;
	struct wl_list link; // wlr_drm_backend.fbs

	uint32_t id;
};

bool init_drm_renderer(struct wlr_drm_backend *drm,
	struct wlr_drm_renderer *renderer);
void finish_drm_renderer(struct wlr_drm_renderer *renderer);

bool init_drm_surface(struct wlr_drm_surface *surf,
	struct wlr_drm_renderer *renderer, int width, int height,
	const struct wlr_drm_format *drm_format);

bool drm_fb_import(struct wlr_drm_fb **fb, struct wlr_drm_backend *drm,
		struct wlr_buffer *buf, const struct wlr_drm_format_set *formats);
void drm_fb_destroy(struct wlr_drm_fb *fb);

void drm_fb_clear(struct wlr_drm_fb **fb);
void drm_fb_move(struct wlr_drm_fb **new, struct wlr_drm_fb **old);
struct wlr_drm_fb *drm_fb_lock(struct wlr_drm_fb *fb);

struct wlr_buffer *drm_surface_blit(struct wlr_drm_surface *surf,
	struct wlr_buffer *buffer);

bool drm_plane_pick_render_format(struct wlr_drm_plane *plane,
	struct wlr_drm_format *fmt, struct wlr_drm_renderer *renderer);
void drm_plane_finish_surface(struct wlr_drm_plane *plane);

#endif