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//
// Definition of class Fl_Wayland_Graphics_Driver.
//
// Copyright 2021-2023 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
/**
\file Fl_Wayland_Graphics_Driver.H
\brief Definition of Wayland graphics driver.
*/
#ifndef FL_WAYLAND_GRAPHICS_DRIVER_H
#define FL_WAYLAND_GRAPHICS_DRIVER_H
#include "../Cairo/Fl_Cairo_Graphics_Driver.H"
#include <stdint.h> // for uint32_t
#include <wayland-client.h> // for wl_list
struct fl_wld_buffer {
struct wl_buffer *wl_buffer;
void *data;
size_t data_size; // of wl_buffer and draw_buffer
int stride;
int width;
unsigned char *draw_buffer;
struct wl_callback *cb;
bool draw_buffer_needs_commit;
cairo_t *cairo_;
struct wl_shm_pool *shm_pool;
struct wl_list link; // links all buffers from the same wl_shm_pool
};
class Fl_Wayland_Graphics_Driver : public Fl_Cairo_Graphics_Driver {
private:
struct fl_wld_buffer *buffer_;
public:
struct wld_shm_pool_data { // one record attached to each wl_shm_pool object
char *pool_memory; // start of mmap'ed memory encapsulated by the wl_shm_pool
int pool_size; // size of encapsulated memory
struct wl_list buffers; // to list of fl_wld_buffer's from this pool
};
Fl_Wayland_Graphics_Driver();
static const uint32_t wld_format;
void set_buffer(struct fl_wld_buffer *buffer, float scale = 0);
void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen osrc, int srcx, int srcy) FL_OVERRIDE;
static struct fl_wld_buffer *create_shm_buffer(int width, int height);
static void buffer_release(struct wld_window *window);
static void buffer_commit(struct wld_window *window, struct flCairoRegion *r = NULL);
static void cairo_init(struct fl_wld_buffer *buffer, int width, int height, int stride, cairo_format_t format);
};
#endif // FL_WAYLAND_GRAPHICS_DRIVER_H
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