Add FS #10214. Initial commit of the original PDa code for the GSoC Pure Data plugin project of Wincent Balin. Stripped some non-sourcefiles and added a rockbox readme that needs a bit more info from Wincent. Is added to CATEGORIES and viewers, but not yet to SUBDIRS (ie doesn't build yet)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21044 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 314 insertions, 0 deletions

diff --git a/apps/plugins/pdbox/pdbox.c b/apps/plugins/pdbox/pdbox.c
new file mode 100644
index 0000000000..9407849352
--- /dev/null
+++ b/apps/plugins/pdbox/pdbox.c
@@ -0,0 +1,314 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2009 Wincent Balin
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "plugin.h"
+#include "pdbox.h"
+
+/* Welcome to the PDBox plugin */
+PLUGIN_HEADER
+PLUGIN_IRAM_DECLARE
+
+/* Quit flag. */
+bool quit = false;
+
+/* Thread IDs. */
+unsigned int core_thread_id;
+unsigned int gui_thread_id;
+
+/* Stacks for threads. */
+#define STACK_SIZE 16384
+uint32_t core_stack[STACK_SIZE / sizeof(uint32_t)];
+uint32_t gui_stack[STACK_SIZE / sizeof(uint32_t)];
+
+
+/* Core thread */
+void core_thread(void)
+{
+    struct datagram ping;
+
+    /* Main loop */
+    while(!quit)
+    {
+        /* Wait for request. */
+        while(!RECEIVE_TO_CORE(&ping))
+            rb->yield();
+
+        if(memcmp("Ping!", ping.data, ping.size) == 0)
+        {
+            SEND_FROM_CORE("Pong!");
+            break;
+        }
+
+        rb->yield();
+    }
+
+   rb->thread_exit();
+}
+
+/* GUI thread */
+void gui_thread(void)
+{
+    struct datagram pong;
+
+    /* GUI loop */
+    while(!quit)
+    {
+        /* Send ping to the core. */
+        SEND_TO_CORE("Ping!");
+        rb->splash(HZ, "Sent ping.");
+
+        /* Wait for answer. */
+        while(!RECEIVE_FROM_CORE(&pong))
+            rb->yield();
+
+        /* If got a pong -- everything allright. */
+        if(memcmp("Pong!", pong.data, pong.size) == 0)
+        {
+            rb->splash(HZ, "Got pong!");
+            quit = true;
+            break;
+        }
+
+        rb->yield();
+    }
+
+    rb->thread_exit();
+}
+
+
+/* Plug-in entry point */
+enum plugin_status plugin_start(const void* parameter)
+{
+    PLUGIN_IRAM_INIT(rb)
+
+    size_t mem_size;
+    void* mem_pool;
+
+    /* Get the file name. */
+    const char* filename = (const char*) parameter;
+
+#if 0
+    /* Allocate memory; check it's size; add to the pool. */
+    mem_pool = rb->plugin_get_audio_buffer(&mem_size);
+    if(mem_size < MIN_MEM_SIZE)
+    {
+        rb->splash(HZ, "Not enough memory!");
+        return PLUGIN_ERROR;
+    }
+    add_pool(mem_pool, mem_size);
+#endif
+
+    /* Initialze net. */
+    net_init();
+
+    /* Start threads. */
+    core_thread_id =
+        rb->create_thread(&core_thread,
+                          core_stack,
+                          sizeof(core_stack),
+                          0, /* FIXME Which flags? */
+                          "PD core"
+                          IF_PRIO(, MAX(PRIORITY_USER_INTERFACE / 2,
+                                       PRIORITY_REALTIME + 1))
+                          IF_COP(, COP));
+    gui_thread_id =
+        rb->create_thread(&gui_thread,
+                          gui_stack,
+                          sizeof(gui_stack),
+                          0, /* FIXME Which flags? */
+                          "PD GUI"
+                          IF_PRIO(, PRIORITY_USER_INTERFACE)
+                          IF_COP(, CPU));
+
+    /* If having an error creating threads, bail out. */
+    if(core_thread_id == 0 || gui_thread_id == 0)
+        return PLUGIN_ERROR;
+
+    /* Wait for quit flag. */
+    while(!quit)
+        rb->yield();
+
+    /* Wait for threads to complete. */
+    rb->thread_wait(gui_thread_id);
+    rb->thread_wait(core_thread_id);
+
+    /* Destroy net. */
+    net_destroy();
+
+    return PLUGIN_OK;
+}
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2009 Wincent Balin
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "plugin.h"
+#include "pdbox.h"
+
+/* Welcome to the PDBox plugin */
+PLUGIN_HEADER
+PLUGIN_IRAM_DECLARE
+
+/* Quit flag. */
+bool quit = false;
+
+/* Thread IDs. */
+unsigned int core_thread_id;
+unsigned int gui_thread_id;
+
+/* Stacks for threads. */
+#define STACK_SIZE 16384
+uint32_t core_stack[STACK_SIZE / sizeof(uint32_t)];
+uint32_t gui_stack[STACK_SIZE / sizeof(uint32_t)];
+
+
+/* Core thread */
+void core_thread(void)
+{
+    struct datagram ping;
+
+    /* Main loop */
+    while(!quit)
+    {
+        /* Wait for request. */
+        while(!RECEIVE_TO_CORE(&ping))
+            rb->yield();
+
+        if(memcmp("Ping!", ping.data, ping.size) == 0)
+        {
+            SEND_FROM_CORE("Pong!");
+            break;
+        }
+
+        rb->yield();
+    }
+
+   rb->thread_exit();
+}
+
+/* GUI thread */
+void gui_thread(void)
+{
+    struct datagram pong;
+
+    /* GUI loop */
+    while(!quit)
+    {
+        /* Send ping to the core. */
+        SEND_TO_CORE("Ping!");
+        rb->splash(HZ, "Sent ping.");
+
+        /* Wait for answer. */
+        while(!RECEIVE_FROM_CORE(&pong))
+            rb->yield();
+
+        /* If got a pong -- everything allright. */
+        if(memcmp("Pong!", pong.data, pong.size) == 0)
+        {
+            rb->splash(HZ, "Got pong!");
+            quit = true;
+            break;
+        }
+
+        rb->yield();
+    }
+
+    rb->thread_exit();
+}
+
+
+/* Plug-in entry point */
+enum plugin_status plugin_start(const void* parameter)
+{
+    PLUGIN_IRAM_INIT(rb)
+
+    size_t mem_size;
+    void* mem_pool;
+
+    /* Get the file name. */
+    const char* filename = (const char*) parameter;
+
+#if 0
+    /* Allocate memory; check it's size; add to the pool. */
+    mem_pool = rb->plugin_get_audio_buffer(&mem_size);
+    if(mem_size < MIN_MEM_SIZE)
+    {
+        rb->splash(HZ, "Not enough memory!");
+        return PLUGIN_ERROR;
+    }
+    add_pool(mem_pool, mem_size);
+#endif
+
+    /* Initialze net. */
+    net_init();
+
+    /* Start threads. */
+    core_thread_id =
+        rb->create_thread(&core_thread,
+                          core_stack,
+                          sizeof(core_stack),
+                          0, /* FIXME Which flags? */
+                          "PD core"
+                          IF_PRIO(, MAX(PRIORITY_USER_INTERFACE / 2,
+                                       PRIORITY_REALTIME + 1))
+                          IF_COP(, COP));
+    gui_thread_id =
+        rb->create_thread(&gui_thread,
+                          gui_stack,
+                          sizeof(gui_stack),
+                          0, /* FIXME Which flags? */
+                          "PD GUI"
+                          IF_PRIO(, PRIORITY_USER_INTERFACE)
+                          IF_COP(, CPU));
+
+    /* If having an error creating threads, bail out. */
+    if(core_thread_id == 0 || gui_thread_id == 0)
+        return PLUGIN_ERROR;
+
+    /* Wait for quit flag. */
+    while(!quit)
+        rb->yield();
+
+    /* Wait for threads to complete. */
+    rb->thread_wait(gui_thread_id);
+    rb->thread_wait(core_thread_id);
+
+    /* Destroy net. */
+    net_destroy();
+
+    return PLUGIN_OK;
+}