dev_backbuf.h

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/*
    This file is part of the Ansel project.
    Copyright (C) 2026 Guillaume STUTIN.
 
    Ansel is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    Ansel is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.
*/
 
#pragma once
 
#include <cairo.h>
 
#include "common/darktable.h"
// dev_pixelpipe.h uses dt_dev_pixelpipe_t/dt_dev_pixelpipe_change_t (defined in pixelpipe_hb.h)
// without including it itself - include it first so this header is self-contained regardless
// of what a caller happened to include before it.
#include "develop/pixelpipe_hb.h"
#include "develop/dev_pixelpipe.h"
 
struct dt_develop_t;
struct dt_pixel_cache_entry_t;
 
typedef struct dt_dev_locked_surface_t
{
  uint64_t hash;
  int width;
  int height;
  void *data;
  struct dt_pixel_cache_entry_t *entry;
  cairo_surface_t *surface;
} dt_dev_locked_surface_t;
 
gboolean dt_dev_lock_pipe_surface(struct dt_develop_t *dev, struct dt_dev_pixelpipe_t *pipe,
                                  dt_dev_locked_surface_t *locked, dt_dev_pixelpipe_cache_wait_t *wait,
                                  const char *wait_owner_tag, gboolean keep_previous_on_fail);
 
gboolean dt_dev_render_locked_surface(cairo_t *cr, const struct dt_develop_t *dev,
                                      dt_dev_locked_surface_t *locked, int width, int height, int border,
                                      const dt_aligned_pixel_t bg_color);
 
gboolean dt_dev_paint_main_backbuf(dt_dev_locked_surface_t *locked, dt_dev_pixelpipe_cache_wait_t *wait,
                                   const char *wait_owner_tag, cairo_t *cr, struct dt_develop_t *dev,
                                   int width, int height, int border, const dt_aligned_pixel_t bg_color,
                                   gboolean keep_previous_on_fail);
 
void dt_dev_release_locked_surface(dt_dev_locked_surface_t *locked);
 
void dt_dev_get_background_color(const struct dt_develop_t *dev, dt_aligned_pixel_t bg_color);
 
void dt_dev_draw_iso12646_border(cairo_t *cr, double width, double height, int border);
 
void dt_dev_draw_profile_mode_label(cairo_t *cri, int height);