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Extend lc_open() to also being able to load overlay plugins.

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For this it needs to look at the plugin header. Since lc_open() doesn't know
it's a plugin, the header needs to be changed slightly to include the new lc_header (which needs to be the first element in plugin_header so it can be casted savely).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28054 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-09-09 16:17:21 +00:00
parent cec7c99613
commit 0d4585b28f
10 changed files with 167 additions and 105 deletions
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17
apps/plugin.c
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@ -723,12 +723,18 @@ static const struct plugin_api rockbox_api = {
/* new stuff at the end, sort into place next time
the API gets incompatible */
dir_get_info,
lc_open,
lc_open_from_mem,
lc_get_header,
lc_close,
};
int plugin_load(const char* plugin, const void* parameter)
{
int rc, i;
struct plugin_header *hdr;
struct plugin_header *p_hdr;
struct lc_header *hdr;
#if LCD_DEPTH > 1
fb_data* old_backdrop;
@ -754,7 +760,10 @@ int plugin_load(const char* plugin, const void* parameter)
return -1;
}
hdr = lc_get_header(current_plugin_handle);
p_hdr = lc_get_header(current_plugin_handle);
hdr = p_hdr ? &p_hdr->lc_hdr : NULL;
if (hdr == NULL
|| hdr->magic != PLUGIN_MAGIC
@ -782,7 +791,7 @@ int plugin_load(const char* plugin, const void* parameter)
plugin_size = 0;
#endif
*(hdr->api) = &rockbox_api;
*(p_hdr->api) = &rockbox_api;
#if defined HAVE_LCD_BITMAP && LCD_DEPTH > 1
old_backdrop = lcd_get_backdrop();
@ -806,7 +815,7 @@ int plugin_load(const char* plugin, const void* parameter)
open_files = 0;
#endif
rc = hdr->entry_point(parameter);
rc = p_hdr->entry_point(parameter);
if (!pfn_tsr_exit)
{ /* close handle if plugin is no tsr one */