Add codecs to librbcodec.

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>

lib/rbcodec/codecs/libgme/inflate/mallocer.c

@@ -0,0 +1,86 @@
+
+/*
+   Based on the wiki viewer mallocer 
+   Copyright (C) 2005 Dave Chapman
+   
+   @ Modified to decompress memory buffer by gama
+ */
+
+#include "mallocer.h"
+#include "codeclib.h"
+
+unsigned char* mallocbuffer[MEMPOOL_MAX];
+long memory_ptr[MEMPOOL_MAX];
+size_t buffersize[MEMPOOL_MAX];
+
+int wpw_init_mempool(unsigned char mempool)
+{
+    memory_ptr[mempool] = 0;
+    mallocbuffer[mempool] = (unsigned char *)ci->codec_get_buffer(&buffersize[mempool]);
+    // memset(mallocbuf[mempool], 0, bufsize[mempool]);
+    return 0;
+}
+
+int wpw_init_mempool_pdm(unsigned char mempool,
+                         unsigned char* mem,long memsize)
+{
+    memory_ptr[mempool] = 0;
+    mallocbuffer[mempool] = mem;
+    buffersize[mempool]=memsize;
+    return 0;
+}
+
+void wpw_reset_mempool(unsigned char mempool)
+{
+    memory_ptr[mempool]=0;
+}
+
+void wpw_destroy_mempool(unsigned char mempool)
+{
+    memory_ptr[mempool] = 0;
+    mallocbuffer[mempool] =0;
+    buffersize[mempool]=0;
+}
+
+long wpw_available(unsigned char mempool)
+{
+    return buffersize[mempool]-memory_ptr[mempool];
+}
+
+void* wpw_malloc(unsigned char mempool,size_t size)
+{
+    void* x;
+
+    if (memory_ptr[mempool] + size > buffersize[mempool] )
+        return NULL;
+
+    x=&mallocbuffer[mempool][memory_ptr[mempool]];
+    memory_ptr[mempool]+=(size+3)&~3; /* Keep memory 32-bit aligned */
+
+    return(x);
+}
+
+void* wpw_calloc(unsigned char mempool,size_t nmemb, size_t size)
+{
+    void* x;
+    x = wpw_malloc(mempool,nmemb*size);
+    if (x == NULL)
+        return NULL;
+
+    memset(x,0,nmemb*size);
+    return(x);
+}
+
+void wpw_free(unsigned char mempool,void* ptr)
+{
+    (void)ptr;
+    (void)mempool;
+}
+
+void* wpw_realloc(unsigned char mempool,void* ptr, size_t size)
+{
+    void* x;
+    (void)ptr;
+    x = wpw_malloc(mempool,size);
+    return(x);
+}