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/libtremor/oggmalloc.c

@@ -0,0 +1,86 @@
+#include "os_types.h"
+#include <tlsf.h>
+
+#if defined(CPU_ARM) || defined(CPU_COLDFIRE) || defined(CPU_MIPS)
+#include <setjmp.h>
+extern jmp_buf rb_jump_buf;
+#define LONGJMP(x)  longjmp(rb_jump_buf, x)
+#elif defined(SIMULATOR)
+#define LONGJMP(x)  do { DEBUGF("Vorbis: allocation failed!\n"); return NULL; } while (false)
+#else
+#define LONGJMP(x)  return NULL
+#endif
+
+void ogg_malloc_init(void)
+{
+    size_t bufsize;
+    void* buf = ci->codec_get_buffer(&bufsize);
+    init_memory_pool(bufsize, buf);
+}
+
+void ogg_malloc_destroy()
+{
+    size_t bufsize;
+    void* buf = ci->codec_get_buffer(&bufsize);
+    destroy_memory_pool(buf);
+}
+
+void *ogg_malloc(size_t size)
+{
+    void* x = tlsf_malloc(size);
+
+    if (x == NULL)
+        LONGJMP(1);
+    
+    return x;
+}
+
+void *ogg_calloc(size_t nmemb, size_t size)
+{
+    void *x = tlsf_calloc(nmemb, size);
+
+    if (x == NULL)
+        LONGJMP(1);
+    
+    return x;
+}
+
+void *ogg_realloc(void *ptr, size_t size)
+{
+    void *x = tlsf_realloc(ptr, size);
+
+    if (x == NULL)
+        LONGJMP(1);
+    
+    return x;
+}
+
+void ogg_free(void* ptr)
+{
+    tlsf_free(ptr);
+}
+
+#ifdef TREMOR_USE_IRAM
+/* Allocate IRAM buffer */
+static unsigned char iram_buff[IRAM_IBSS_SIZE] IBSS_ATTR MEM_ALIGN_ATTR;
+static size_t iram_remain;
+
+void iram_malloc_init(void){
+    iram_remain=IRAM_IBSS_SIZE;
+}
+
+void *iram_malloc(size_t size){
+    void* x;
+
+    /* always ensure alignment to CACHEALIGN_SIZE byte */
+    size = (size + (CACHEALIGN_SIZE-1)) & ~(CACHEALIGN_SIZE-1);
+
+    if(size>iram_remain)
+      return NULL;
+
+    x = &iram_buff[IRAM_IBSS_SIZE-iram_remain];
+    iram_remain-=size;
+
+    return x;
+}
+#endif