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update image_container.

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1254 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com
2011-01-22 01:30:42 +00:00
parent d20a26430d
commit bb1518ef1d
9 changed files with 337 additions and 197 deletions
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75
components/rtgui/common/image_container.c
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@@ -352,6 +352,13 @@ rt_bool_t string_equal_func(const void* a, const void* b)
return RT_FALSE;
}
/* hash node for imnage */
struct image_hash_node
{
rt_image_t *image;
char *filename;
};
static rtgui_hash_table_t* image_hash_table;
rt_bool_t load_image = RT_FALSE;
void image_container_system_init(rt_bool_t is_load)
@@ -362,15 +369,75 @@ void image_container_system_init(rt_bool_t is_load)
load_image = is_load;
}
rtgui_image_t* image_container_get(const char* filename)
rtgui_image_t* rtgui_image_container_get(const char* filename)
{
/* get image type */
struct image_hash_node* node;
node = hash_table_find(image_hash_table, filename);
if (node == RT_NULL)
{
rtgui_image_t *image;
node = (struct image_hash_node*) rt_malloc (sizeof(struct image_hash_node));
if (node == RT_NULL) return RT_NULL;
/* create a image object */
image = rtgui_image_create(filename, load_image);
if (image == RT_NULL)
{
rt_free(node);
return RT_NULL; /* create image failed */
}
node->image = image;
node->filename = rt_strdup(filename);
hash_table_add(image_hash_table, node->filename, node);
}
else
{
node->image->ref ++; /* increase refcount */
}
return node->image;
}
rtgui_image_t* image_container_get_memref(const rt_uint8_t* memory, const char* type)
rtgui_image_t* rtgui_image_container_get_memref(const rt_uint8_t* memory, const char* type)
{
struct image_hash_node* node;
char filename[32];
/* create filename for image identification */
rt_snprintf(filename, sizeof(filename), "0x%08x_%s", memory, type);
/* search in container */
node = hash_table_find(image_hash_table, filename);
if (node == RT_NULL)
{
node = (struct image_hash_node*) rt_malloc (sizeof(struct image_hash_node));
if (node == RT_NULL) return RT_NULL;
/* create image object */
image = rtgui_image_create_from_mem(memory, type, load_image);
if (image == RT_NULL)
{
rt_free(node);
return RT_NULL; /* create image failed */
}
node->image = image;
node->filename = rt_strdup(image_id);
hash_table_add(image_hash_table, node->filename, node);
}
else node->image->ref ++;
return node->image;
}
void image_container_put(rtgui_image_t* image)
void rtgui_image_container_put(rtgui_image_t* image)
{
image->ref --;
if (image->ref == 0)
{
}
}