xpngloader.h

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/*
 *                           0BSD 
 * 
 *                    BSD Zero Clause License
 * 
 *  Copyright (c) 2019 Hermann Meyer
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted.
 
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 *
 */
 
#pragma once
 
#ifndef XPNGLOADER_H_
#define XPNGLOADER_H_
 
#include "xputty.h"
#include "config.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
 
#ifdef USE_LD
 
#ifdef __APPLE__
 
#ifdef __cplusplus
}
#endif
 
#include <mach-o/getsect.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define EXTLD(NAME) \
  extern const unsigned char _section$__DATA__ ## NAME [];
#define LDVAR(NAME) _section$__DATA__ ## NAME
#define LDLEN(NAME) (getsectbyname("__DATA", "__" #NAME)->size)
 
#elif (defined __WIN32__)  /* mingw */
 
 
#define EXTLD(NAME) \
  extern const unsigned char _binary_ ## NAME ## _start[]; \
  extern const unsigned char _binary_ ## NAME ## _end[];
#define LDVAR(NAME) \
  _binary_ ## NAME ## _start
#define LDLEN(NAME) \
  ((_binary_ ## NAME ## _end) - (_binary_ ## NAME ## _start))
 
#else /* gnu/linux ld */
 
#define EXTLD(NAME) \
  extern const unsigned char _binary_ ## NAME ## _start[]; \
  extern const unsigned char _binary_ ## NAME ## _end[];
#define LDVAR(NAME) \
  _binary_ ## NAME ## _start
#define LDLEN(NAME) \
  ((_binary_ ## NAME ## _end) - (_binary_ ## NAME ## _start))
#endif
 
#else /* xxd -i NAME */
 
#define EXTLD(NAME) \
    extern const unsigned char NAME;
#define LDVAR(NAME) \
    (const unsigned char*)&NAME
 
#endif
 
 
/*---------------------------------------------------------------------
-----------------------------------------------------------------------    
                    define needed structs
-----------------------------------------------------------------------
----------------------------------------------------------------------*/
 
typedef struct  {
    const unsigned char * data;
    long int position;
} binary_stream;
 
#include "xresources.h"
 
cairo_surface_t *cairo_image_surface_create_from_stream ( const unsigned char* name);
 
void widget_get_png(Widget_t *w, const unsigned char* name);
 
void widget_get_scaled_png(Widget_t *w, const unsigned char* name);
 
void widget_get_png_from_file(Widget_t *w, const char* filename);
 
void widget_get_scaled_png_from_file(Widget_t *w, const char* filename);
 
void widget_get_surface_ptr(Widget_t *w, Widget_t *wid);
 
cairo_surface_t * surface_get_png(Widget_t *w, cairo_surface_t *sf, const unsigned char* name);
 
void widget_set_icon_from_surface(Widget_t *w,  cairo_surface_t *image);
 
void widget_set_icon_from_png(Widget_t *w, const unsigned char* name);
 
#ifdef __cplusplus
}
#endif
 
#endif //XPNGLOADER_H_