*[libwiigui] Minor adjustment of the ogg sound decoder to be capable of reading files into memory on its own.

*Replaced libtremor with libvorbisidec

HBC/META.XML

@@ -2,8 +2,8 @@
 	<app version="1">
 		<name> USB Loader GX</name>
 		<coder>USB Loader GX Team</coder>
-		<version>1.0 r938</version>
-		<release_date>201007040019</release_date>
+		<version>1.0 r939</version>
+		<release_date>201009110014</release_date>
 		<short_description>Loads games from USB-devices</short_description>
 		<long_description>USB Loader GX is a libwiigui based USB iso loader with a wii-like GUI. You can install games to your HDDs and boot them with shorter loading times.
 The interactive GUI is completely controllable with WiiMote, Classic Controller or GC Controller.

Makefile

@@ -64,7 +64,7 @@ LDFLAGS		=	-g $(MACHDEP) -Wl,-Map,$(notdir $@).map,--section-start,.init=0x80B00
 #---------------------------------------------------------------------------------
 # any extra libraries we wish to link with the project
 #---------------------------------------------------------------------------------
-LIBS :=  -lpngu -lpng -lm -lz -lwiiuse -lbte -lasnd -logc -lfreetype -ltremor -lmad -lmxml -ljpeg
+LIBS :=  -lpngu -lpng -lm -lz -lwiiuse -lbte -lasnd -logc -lfreetype -lvorbisidec -lmad -lmxml -ljpeg
 #---------------------------------------------------------------------------------
 # list of directories containing libraries, this must be the top level containing
 # include and lib

source/libwiigui/gui_sound_decoder_ogg.cpp

@@ -16,9 +16,218 @@
 #include <asndlib.h>
 #include <tremor/ivorbiscodec.h>
 #include <tremor/ivorbisfile.h>
+#include <string.h>
 
 #include "gui_sound_decoder.h"
 
+/* functions to read the Ogg file from memory */
+
+static struct
+{
+	char *mem;
+	int size;
+	int pos;
+} file[4];
+
+static int f_read(void * punt, int bytes, int blocks, int *f)
+{
+	int b;
+	int c = 0;
+	int d;
+
+	if (bytes * blocks <= 0)
+		return 0;
+
+	blocks *= bytes;
+
+	while (blocks > 0)
+	{
+		b = blocks;
+		if (b > 4096)
+			b = 4096;
+
+		d = (*f) - 0x666;
+		if((unsigned)(d) <= (0x669 - 0x666))
+		{
+			if (file[d].size == 0)
+				return -1;
+			if ((file[d].pos + b) > file[d].size)
+				b = file[d].size - file[d].pos;
+			if (b > 0)
+			{
+				memcpy(punt, file[d].mem + file[d].pos, b);
+				file[d].pos += b;
+			}
+		}
+		else
+			b = read(*f, ((char *) punt) + c, b);
+
+		if (b <= 0)
+		{
+			return c / bytes;
+		}
+		c += b;
+		blocks -= b;
+	}
+	return c / bytes;
+}
+
+static int f_seek(int *f, ogg_int64_t offset, int mode)
+{
+	if(f==NULL) return(-1);
+
+	int k;
+	mode &= 3;
+
+	int d = (*f) - 0x666;
+	if((unsigned)(d) <= (0x669 - 0x666))
+	{
+		k = 0;
+
+		if (file[d].size == 0)
+			return -1;
+
+		if (mode == 0)
+		{
+			if ((offset) >= file[d].size)
+			{
+				file[d].pos = file[d].size;
+				k = -1;
+			}
+			else if ((offset) < 0)
+			{
+				file[d].pos = 0;
+				k = -1;
+			}
+			else
+				file[d].pos = offset;
+		}
+		else if (mode == 1)
+		{
+			if ((file[d].pos + offset) >= file[d].size)
+			{
+				file[d].pos = file[d].size;
+				k = -1;
+			}
+			else if ((file[d].pos + offset) < 0)
+			{
+				file[d].pos = 0;
+				k = -1;
+			}
+			else
+				file[d].pos += offset;
+		}
+		else if (mode == 2)
+		{
+
+			if ((file[d].size + offset) >= file[d].size)
+			{
+				file[d].pos = file[d].size;
+				k = -1;
+			}
+			else if ((file[d].size + offset) < 0)
+			{
+				file[d].pos = 0;
+				k = -1;
+			}
+			else
+				file[d].pos = file[d].size + offset;
+		}
+
+	}
+	else
+		k = lseek(*f, (int) offset, mode);
+
+	if (k < 0)
+		k = -1;
+	else
+		k = 0;
+	return k;
+}
+
+static int f_close(int *f)
+{
+	int d = (*f) - 0x666;
+	if((unsigned)(d) <= (0x669 - 0x666))
+	{
+		file[d].size = 0;
+		file[d].pos = 0;
+		if (file[d].mem)
+		{
+			file[d].mem = (char *) 0;
+		}
+		return 0;
+	}
+	else
+		return close(*f);
+	return 0;
+}
+
+static long f_tell(int *f)
+{
+	int k;
+
+	int d = (*f) - 0x666;
+	if((unsigned)(d) <= (0x669 - 0x666))
+	{
+		k = file[d].pos;
+	}
+	else
+		k = lseek(*f, 0, 1);
+
+	return (long) k;
+}
+
+static int mem_open(char * ogg, int size)
+{
+	static int one = 1;
+	int n;
+	if (one)
+	{
+		one = 0;
+
+		file[0].size = 0;
+		file[1].size = 0;
+		file[2].size = 0;
+		file[3].size = 0;
+		file[0].mem = ogg;
+		file[0].size = size;
+		file[0].pos = 0;
+		return (0x666);
+	}
+
+	for (n = 0; n < 4; n++)
+	{
+		if (file[n].size == 0)
+		{
+			file[n].mem = ogg;
+			file[n].size = size;
+			file[n].pos = 0;
+			return (0x666 + n);
+		}
+	}
+	return -1;
+}
+
+static int mem_close(int fd)
+{
+	if((unsigned)((fd) - 0x666) <= (0x669 - 0x666)) // it is a memory file descriptor?
+	{
+		fd -= 0x666;
+		file[fd].size = 0;
+		return 0;
+	}
+	else
+		return f_close(&fd);
+}
+
+static ov_callbacks callbacks = {
+	(size_t (*)(void *, size_t, size_t, void *))  f_read,
+	(int (*)(void *, ogg_int64_t, int))           f_seek,
+	(int (*)(void *))                             f_close,
+	(long (*)(void *))                            f_tell
+};
+
 class GuiSoundDecoderOGG : public GuiSoundDecoder
 {
 protected:
@@ -29,7 +238,7 @@ protected:
 		ogg_fd			= mem_open((char *)snd, len);
 		if(ogg_fd < 0) throw("mem open failed");
 
-		if (ov_open((FILE*)&ogg_fd, &ogg_file, NULL, 0) < 0)
+		if (ov_open_callbacks((void*)&ogg_fd, &ogg_file, NULL, 0, callbacks) < 0)
 		{
 			mem_close(ogg_fd); 
 			throw("ogg open failed");