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/*
* File : image.h
* This file is part of RT-Thread GUI Engine
* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2009-10-16 Bernard first version
*/
#ifndef __RTGUI_IMAGE_H__
#define __RTGUI_IMAGE_H__
#include <rtgui/dc.h>
#include <rtgui/filerw.h>
#include <rtgui/region.h>
#ifdef __cplusplus
extern "C" {
#endif
struct rtgui_image;
struct rtgui_image_engine
{
const char *name;
struct rtgui_list_node list;
/* image engine function */
rt_bool_t (*image_check)(struct rtgui_filerw *file);
rt_bool_t (*image_load)(struct rtgui_image *image, struct rtgui_filerw *file, rt_bool_t load);
void (*image_unload)(struct rtgui_image *image);
void (*image_blit)(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_rect *rect);
};
struct rtgui_image_palette
{
rtgui_color_t *colors;
rt_uint32_t ncolors;
};
typedef struct rtgui_image_palette rtgui_image_palette_t;
struct rtgui_image
{
/* image metrics */
rt_uint16_t w, h;
/* image engine */
const struct rtgui_image_engine *engine;
/* image palette */
rtgui_image_palette_t *palette;
/* image private data */
void *data;
};
typedef struct rtgui_image rtgui_image_t;
/* init rtgui image system */
void rtgui_system_image_init(void);
#if defined(RTGUI_USING_DFS_FILERW)
struct rtgui_image_engine *rtgui_image_get_engine_by_filename(const char *fn);
struct rtgui_image *rtgui_image_create_from_file(const char *type, const char *filename, rt_bool_t load);
struct rtgui_image *rtgui_image_create(const char *filename, rt_bool_t load);
#endif
struct rtgui_image *rtgui_image_create_from_mem(const char *type, const rt_uint8_t *data, rt_size_t length, rt_bool_t load);
void rtgui_image_destroy(struct rtgui_image *image);
/* get image's rect */
void rtgui_image_get_rect(struct rtgui_image *image, struct rtgui_rect *rect);
/* register an image engine */
void rtgui_image_register_engine(struct rtgui_image_engine *engine);
/* blit an image on DC */
void rtgui_image_blit(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_rect *rect);
struct rtgui_image_palette *rtgui_image_palette_create(rt_uint32_t ncolors);
#ifdef __cplusplus
}
#endif
#endif
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