// SPDX-FileCopyrightText: © 2026 Vladimir Zorin <vladimir@deviant.guru>
// SPDX-License-Identifier: LicenseRef-OWL-1.0-or-later
// Licensed under OWL v1.0+. See LICENSE.

/* Shared surface layout for C modules that read term.gfx surfaces directly
 * (gfx_core.c owns the type; drm_core.c blits from it). The struct and the
 * metatable name must match what luaopen_term_gfx_core registers — any
 * consumer validates a userdata with luaL_checkudata(L, idx, GFX_SURFACE_MT). */

#ifndef LILUSH_GFX_CORE_H
#define LILUSH_GFX_CORE_H

#include <stdint.h>

#define GFX_SURFACE_MT "term.gfx.surface"

typedef struct {
    int w;
    int h;
    uint8_t *px; /* w*h*4, RGBA row-major; NULL only between alloc failure and __gc */
} gfx_surface_t;

#endif /* LILUSH_GFX_CORE_H */