Cleaned up the messy codec header and library system by merging codec.h, lib/codeclib.[ch] and lib/xxx2wav.[ch] into just codeclib.[ch]. Deleted much of the unused code in the xxx2wav portion. All codecs should now only include codeclib.h, and whatever codec specific headers are needed.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7626 a1c6a512-1295-4272-9138-f99709370657

3 files changed, 152 insertions, 7 deletions

diff --git a/apps/codecs/lib/SOURCES b/apps/codecs/lib/SOURCES
index b0e5017..96fcb83 100644
--- a/apps/codecs/lib/SOURCES
+++ b/apps/codecs/lib/SOURCES
@@ -1,4 +1,3 @@
 #if CONFIG_CODEC == SWCODEC /* software codec platforms */
 codeclib.c
-xxx2wav.c
 #endif
diff --git a/apps/codecs/lib/codeclib.c b/apps/codecs/lib/codeclib.c
index b2f5c23..b9858dd 100644
--- a/apps/codecs/lib/codeclib.c
+++ b/apps/codecs/lib/codeclib.c
@@ -19,14 +19,19 @@
 
 /* "helper functions" common to all codecs  */
 
-#include "plugin.h"
+#include "codecs.h"
 #include "dsp.h"
 #include "codeclib.h"
-#include "xxx2wav.h"
 #include "id3.h"
 
 struct codec_api *local_rb;
 
+int mem_ptr;
+int bufsize;
+unsigned char* mp3buf;     // The actual MP3 buffer from Rockbox
+unsigned char* mallocbuf;  // 512K from the start of MP3 buffer
+unsigned char* filebuf;    // The rest of the MP3 buffer
+
 int codec_init(struct codec_api* rb)
 {
     local_rb = rb;
@@ -43,3 +48,113 @@ void codec_set_replaygain(struct mp3entry* id3)
     local_rb->configure(DSP_SET_TRACK_PEAK, (long *) id3->track_peak);
     local_rb->configure(DSP_SET_ALBUM_PEAK, (long *) id3->album_peak);
 }
+
+/* Various "helper functions" common to all the xxx2wav decoder plugins  */
+
+
+void* codec_malloc(size_t size)
+{
+    void* x;
+
+    if (mem_ptr + (int)size > bufsize)
+        return NULL;
+    
+    x=&mallocbuf[mem_ptr];
+    mem_ptr+=(size+3)&~3; /* Keep memory 32-bit aligned */
+
+    return(x);
+}
+
+void* codec_calloc(size_t nmemb, size_t size)
+{
+    void* x;
+    x = codec_malloc(nmemb*size);
+    if (x == NULL)
+        return NULL;
+    local_rb->memset(x,0,nmemb*size);
+    return(x);
+}
+
+#if defined(SIMULATOR)
+void* codec_alloca(size_t size)
+{
+    void* x;
+    x = codec_malloc(size);
+    return(x);
+}
+#endif
+
+void codec_free(void* ptr) {
+    (void)ptr;
+}
+
+void* codec_realloc(void* ptr, size_t size)
+{
+    void* x;
+    (void)ptr;
+    x = codec_malloc(size);
+    return(x);
+}
+
+size_t strlen(const char *s)
+{
+    return(local_rb->strlen(s));
+}
+
+char *strcpy(char *dest, const char *src)
+{
+    return(local_rb->strcpy(dest,src));
+}
+
+char *strcat(char *dest, const char *src)
+{
+    return(local_rb->strcat(dest,src));
+}
+
+int strcmp(const char *s1, const char *s2)
+{
+    return(local_rb->strcmp(s1,s2));
+}
+
+int strncasecmp(const char *s1, const char *s2, size_t n)
+{
+    return(local_rb->strncasecmp(s1,s2,n));
+}
+
+void *memcpy(void *dest, const void *src, size_t n)
+{
+    return(local_rb->memcpy(dest,src,n));
+}
+
+void *memset(void *s, int c, size_t n)
+{
+    return(local_rb->memset(s,c,n));
+}
+
+int memcmp(const void *s1, const void *s2, size_t n)
+{
+    return(local_rb->memcmp(s1,s2,n));
+}
+
+void* memchr(const void *s, int c, size_t n)
+{
+    return(local_rb->memchr(s,c,n));
+}
+
+void* memmove(const void *s1, const void *s2, size_t n)
+{
+    char* dest=(char*)s1;
+    char* src=(char*)s2;
+    size_t i;
+    
+    for (i=0;i<n;i++)
+        dest[i]=src[i];
+
+    return(dest);
+}
+
+void qsort(void *base, size_t nmemb, size_t size,
+           int(*compar)(const void *, const void *))
+{
+    local_rb->qsort(base,nmemb,size,compar);
+}
diff --git a/apps/codecs/lib/codeclib.h b/apps/codecs/lib/codeclib.h
index d6bbfd3..b46b44b 100644
--- a/apps/codecs/lib/codeclib.h
+++ b/apps/codecs/lib/codeclib.h
@@ -19,26 +19,57 @@
 
 #include "config.h"
 #include "codecs.h"
+#include "system.h"
+#include <sys/types.h>
 
-/* Various codec "helper functions" */
+#define MALLOC_BUFSIZE (512*1024)
 
 extern int mem_ptr;
 extern int bufsize;
-extern unsigned char* mallocbuf;  /* 512K from the start of MP3 buffer */
+extern unsigned char* mp3buf;     // The actual MP3 buffer from Rockbox
+extern unsigned char* mallocbuf;  // 512K from the start of MP3 buffer
+extern unsigned char* filebuf;    // The rest of the MP3 buffer
+
+/* Standard library functions that are used by the codecs follow here */
+
+/* Get these functions 'out of the way' of the standard functions. Not doing
+ * so confuses the cygwin linker, and maybe others. These functions need to
+ * be implemented elsewhere */
+#define malloc(x) codec_malloc(x)
+#define calloc(x,y) codec_calloc(x,y)
+#define realloc(x,y) codec_realloc(x,y)
+#define free(x) codec_free(x)
 
 void* codec_malloc(size_t size);
 void* codec_calloc(size_t nmemb, size_t size);
 void* codec_realloc(void* ptr, size_t size);
 void codec_free(void* ptr);
 
-#if defined(SIMULATOR)
+#if !defined(SIMULATOR)
+#define alloca __builtin_alloca
+#else
+#define alloca(x) codec_alloca(x)
 void* codec_alloca(size_t size);
 #endif
 
 void *memcpy(void *dest, const void *src, size_t n);
 void *memset(void *s, int c, size_t n);
 int memcmp(const void *s1, const void *s2, size_t n);
-void* memmove(const void *s1, const void *s2, size_t n);
+void *memmove(const void *s1, const void *s2, size_t n);
+
+size_t strlen(const char *s);
+char *strcpy(char *dest, const char *src);
+char *strcat(char *dest, const char *src);
+int strcmp(const char *, const char *);
+int strcasecmp(const char *, const char *);
+
+void qsort(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *));
+
+#define abs(x) ((x)>0?(x):-(x))
+#define labs(x) abs(x)
+
+/* Various codec helper functions */
 
 int codec_init(struct codec_api* rb);
 void codec_set_replaygain(struct mp3entry* id3);
+