picom/src/backend/backend_common.h

41 lines
1.5 KiB
C

// SPDX-License-Identifier: MPL-2.0
// Copyright (c) Yuxuan Shui <yshuiv7@gmail.com>
#pragma once
#include <xcb/render.h>
#include <xcb/xcb_image.h>
#include <stdbool.h>
#include "region.h"
typedef struct session session_t;
typedef struct win win;
typedef struct conv conv;
typedef struct backend_base backend_t;
struct backend_operations;
bool build_shadow(xcb_connection_t *, xcb_drawable_t, double opacity, int width,
int height, const conv *kernel, xcb_render_picture_t shadow_pixel,
xcb_pixmap_t *pixmap, xcb_render_picture_t *pict);
xcb_render_picture_t solid_picture(xcb_connection_t *, xcb_drawable_t, bool argb,
double a, double r, double g, double b);
xcb_image_t *make_shadow(xcb_connection_t *c, const conv *kernel, double opacity,
int width, int height);
/// The default implementation of `is_win_transparent`, it simply looks at win::mode. So
/// this is not suitable for backends that alter the content of windows
bool default_is_win_transparent(void *, win *, void *);
/// The default implementation of `is_frame_transparent`, it uses win::frame_opacity. Same
/// caveat as `default_is_win_transparent` applies.
bool default_is_frame_transparent(void *, win *, void *);
void *
default_backend_render_shadow(backend_t *backend_data, int width, int height,
const conv *kernel, double r, double g, double b, double a);
void init_backend_base(struct backend_base *base, session_t *ps);