diff options
Diffstat (limited to 'components/rtgui_win/common/image.c')
| -rw-r--r-- | components/rtgui_win/common/image.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/components/rtgui_win/common/image.c b/components/rtgui_win/common/image.c new file mode 100644 index 0000000000..74bf113983 --- /dev/null +++ b/components/rtgui_win/common/image.c @@ -0,0 +1,217 @@ +/* + * File : image.c + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rt-thread.org/license/LICENSE + * + * Change Logs: + * Date Author Notes + * 2009-10-16 Bernard first version + */ +#include <rtthread.h> +#include <rtgui/image.h> + +#include <rtgui/image_xpm.h> +#include <rtgui/image_hdc.h> +#include <rtgui/rtgui_system.h> + +#include <string.h> + +#ifdef RTGUI_IMAGE_BMP +#include <rtgui/image_bmp.h> +#endif +#ifdef RTGUI_IMAGE_JPEG +#include <rtgui/image_jpeg.h> +#endif +#ifdef RTGUI_IMAGE_PNG +#include <rtgui/image_png.h> +#endif + +static rtgui_list_t _rtgui_system_image_list = {RT_NULL}; + +/* init rtgui image system */ +void rtgui_system_image_init(void) +{ + /* always support XPM image */ + rtgui_image_xpm_init(); + rtgui_image_hdc_init(); + +#ifdef RTGUI_IMAGE_BMP + rtgui_image_bmp_init(); +#endif + +#ifdef RTGUI_IMAGE_JPEG + rtgui_image_jpeg_init(); +#endif + +#ifdef RTGUI_IMAGE_PNG + rtgui_image_png_init(); +#endif +} + +static struct rtgui_image_engine* rtgui_image_get_engine(const char* type) +{ + rtgui_list_t *node; + struct rtgui_image_engine *engine; + + rtgui_list_foreach(node, &_rtgui_system_image_list) + { + engine = rtgui_list_entry(node, struct rtgui_image_engine, list); + + if(strncasecmp(engine->name, type, strlen(engine->name)) ==0) + return engine; + } + + return RT_NULL; +}
+ +#if defined(RTGUI_USING_DFS_FILERW) || defined(RTGUI_USING_STDIO_FILERW) +rtgui_image_t* rtgui_image_create_from_file(const char* type, const char* filename, rt_bool_t load) +{ + struct rtgui_filerw* file; + struct rtgui_image_engine* engine; + rtgui_image_t* image = RT_NULL; + + /* create filerw context */ + file = rtgui_filerw_create_file(filename, "rb"); + if(file == RT_NULL) return RT_NULL; + + /* get image engine */ + engine = rtgui_image_get_engine(type); + if(engine == RT_NULL) + { + /* close filerw context */ + rtgui_filerw_close(file); + return RT_NULL; + } + + if(engine->image_check(file) == RT_TRUE) + { + image = (rtgui_image_t*) rt_malloc(sizeof(rtgui_image_t)); + if(image == RT_NULL) + { + /* close filerw context */ + rtgui_filerw_close(file); + return RT_NULL; + } + + if(engine->image_load(image, file, load) != RT_TRUE) + { + /* close filerw context */ + rtgui_filerw_close(file); + return RT_NULL; + } + + /* set image engine */ + image->engine = engine; + } + else + { + rtgui_filerw_close(file); + } + + return image; +}
+#endif + +rtgui_image_t* rtgui_image_create_from_mem(const char* type, const rt_uint8_t* data, rt_size_t length, rt_bool_t load) +{ + struct rtgui_filerw* file; + struct rtgui_image_engine* engine; + rtgui_image_t* image = RT_NULL;
+ + /* create filerw context */ + file = rtgui_filerw_create_mem(data, length); + if(file == RT_NULL) return RT_NULL;
+ + /* ȡ��ͼ������get image engine */ + engine = rtgui_image_get_engine(type); + if(engine == RT_NULL) + { + /* close filerw context */ + rtgui_filerw_close(file); + return RT_NULL; + } + + if(engine->image_check(file) == RT_TRUE) + { + image = (rtgui_image_t*)rt_malloc(sizeof(rtgui_image_t)); + if(image == RT_NULL) + { + /* close filerw context */ + rtgui_filerw_close(file); + return RT_NULL; + } + + if(engine->image_load(image, file, load) != RT_TRUE) + { + /* close filerw context */ + rtgui_filerw_close(file); + return RT_NULL; + } + + /* set image engine */ + image->engine = engine; + } + else + { + rtgui_filerw_close(file); + } + + return image; +} + +void rtgui_image_destroy(rtgui_image_t* image) +{ + RT_ASSERT(image != RT_NULL); + + image->engine->image_unload(image); + rt_free(image); +} + +/* register an image engine */ +void rtgui_image_register_engine(struct rtgui_image_engine* engine) +{ + RT_ASSERT(engine!= RT_NULL); + + rtgui_list_append(&_rtgui_system_image_list, &(engine->list)); +} + +void rtgui_image_blit(rtgui_image_t *image, rtgui_dc_t *dc, rtgui_rect_t *rect) +{
+ RT_ASSERT(rect != RT_NULL); + + if(image != RT_NULL && image->engine != RT_NULL) + { + /* use image engine to blit */ + image->engine->image_blit(image, dc, rect); + } +}
+
+void rtgui_image_paste(rtgui_image_t *image, rtgui_dc_t *dc, rtgui_rect_t *rect, rtgui_color_t shield_color)
+{
+ RT_ASSERT(rect != RT_NULL);
+
+ if(image != RT_NULL && image->engine != RT_NULL) + { + /* use image engine to blit */ + image->engine->image_paste(image, dc, rect, shield_color); + }
+}
+ +struct rtgui_image_palette* rtgui_image_palette_create(rt_uint32_t ncolors) +{ + struct rtgui_image_palette* palette = RT_NULL; + + if (ncolors > 0) + { + palette = (struct rtgui_image_palette*) rt_malloc(sizeof(struct rtgui_image_palette) + sizeof(rtgui_color_t) * ncolors); + if (palette != RT_NULL) palette->colors = (rtgui_color_t*)(palette + 1); + } + + return palette; +}
+ |