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dzzxzz@gmail.com
62447b2cd8
As always, full log is in GitHub. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2449 bbd45198-f89e-11dd-88c7-29a3b14d5316
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*
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* File : image.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-10-16 Bernard first version
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*/
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#ifndef __RTGUI_IMAGE_H__
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#define __RTGUI_IMAGE_H__
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#include <rtgui/dc.h>
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#include <rtgui/filerw.h>
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#include <rtgui/region.h>
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enum rtgui_img_zoom
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{
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RTGUI_IMG_ZOOM_NEAREST,
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RTGUI_IMG_ZOOM_BILINEAR
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};
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struct rtgui_image;
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struct rtgui_image_engine
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{
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const char *name;
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struct rtgui_list_node list;
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/* image engine function */
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rt_bool_t (*image_check)(struct rtgui_filerw *file);
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rt_bool_t (*image_load)(struct rtgui_image *image, struct rtgui_filerw *file, rt_bool_t load);
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void (*image_unload)(struct rtgui_image *image);
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void (*image_blit)(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_rect *rect);
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struct rtgui_image *(*image_zoom)(struct rtgui_image *image, float scalew, float scaleh, rt_uint32_t mode);
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struct rtgui_image *(*image_rotate)(struct rtgui_image *image, float angle);
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};
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struct rtgui_image_palette
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{
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rtgui_color_t *colors;
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rt_uint32_t ncolors;
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};
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typedef struct rtgui_image_palette rtgui_image_palette_t;
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struct rtgui_image
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{
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/* image metrics */
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rt_uint16_t w, h;
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/* image engine */
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const struct rtgui_image_engine *engine;
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/* image palette */
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rtgui_image_palette_t *palette;
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/* image private data */
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void *data;
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};
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typedef struct rtgui_image rtgui_image_t;
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/* init rtgui image system */
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void rtgui_system_image_init(void);
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#if defined(RTGUI_USING_DFS_FILERW)
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struct rtgui_image_engine *rtgui_image_get_engine_by_filename(const char *fn);
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struct rtgui_image *rtgui_image_create_from_file(const char *type, const char *filename, rt_bool_t load);
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struct rtgui_image *rtgui_image_create(const char *filename, rt_bool_t load);
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#endif
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struct rtgui_image *rtgui_image_create_from_mem(const char *type, const rt_uint8_t *data, rt_size_t length, rt_bool_t load);
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void rtgui_image_destroy(struct rtgui_image *image);
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/* get image's rect */
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void rtgui_image_get_rect(struct rtgui_image *image, struct rtgui_rect *rect);
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/* register an image engine */
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void rtgui_image_register_engine(struct rtgui_image_engine *engine);
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/* blit an image on DC */
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void rtgui_image_blit(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_rect *rect);
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struct rtgui_image_palette *rtgui_image_palette_create(rt_uint32_t ncolors);
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rtgui_image_t *rtgui_image_zoom(rtgui_image_t *image, float scalew, float scaleh, rt_uint32_t mode);
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rtgui_image_t *rtgui_image_rotate(rtgui_image_t *image, float angle);
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#endif
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