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SWCODEC/IRAM: Save voice IRAM when a plugin initializes its IRAM. Defines two macros for declaring and initializing IRAM. Plugins should use these instead. See mp3_encoder, doom, etc. for details. Further tweaks in buffer restoration after other use. Hiding of some interfaces that should only be used by buffer management.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11544 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2006-11-18 02:18:29 +00:00
parent e2a262ee25
commit acc29d95be
15 changed files with 204 additions and 125 deletions
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16
apps/plugin.c
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@ -471,6 +471,9 @@ static const struct plugin_api rockbox_api = {
lcd_set_backdrop,
#endif
#ifdef IRAM_STEAL
plugin_iram_init,
#endif
};
int plugin_load(const char* plugin, void* parameter)
@ -683,10 +686,21 @@ void* plugin_get_audio_buffer(int* buffer_size)
audio_stop();
talk_buffer_steal(); /* we use the mp3 buffer, need to tell */
*buffer_size = audiobufend - audiobuf;
#endif
return audiobuf;
#endif
}
#ifdef IRAM_STEAL
/* Initializes plugin IRAM */
void plugin_iram_init(char *iramstart, char *iramcopy, size_t iram_size,
char *iedata, size_t iedata_size)
{
audio_iram_steal();
memcpy(iramstart, iramcopy, iram_size);
memset(iedata, 0, iedata_size);
}
#endif /* IRAM_STEAL */
/* The plugin wants to stay resident after leaving its main function, e.g.
runs from timer or own thread. The callback is registered to later
instruct it to free its resources before a new plugin gets loaded. */