Add SFO Reader

Makefile

@@ -1,6 +1,6 @@
 TITLE_ID = VITASHELL
 TARGET   = VitaShell
-OBJS     = main.o init.o io_process.o package_installer.o archive.o photo.o file.o text.o hex.o \
+OBJS     = main.o init.o io_process.o package_installer.o archive.o photo.o file.o text.o hex.o sfo.o \
 		   uncommon_dialog.o message_dialog.o ime_dialog.o config.o theme.o language.o utils.o sha1.o \
 		   audioplayer.o minizip/unzip.o minizip/ioapi.o
 

file.c

@@ -362,6 +362,7 @@ static ExtensionType extension_types[] = {
 	{ ".MP3",  FILE_TYPE_MP3 },
 	{ ".VPK",  FILE_TYPE_VPK },
 	{ ".ZIP",  FILE_TYPE_ZIP },
+	{ ".SFO",  FILE_TYPE_SFO },
 };
 
 int getFileType(char *file) {

file.h

@@ -37,6 +37,7 @@ enum FileTypes {
 	FILE_TYPE_MP3,
 	FILE_TYPE_VPK,
 	FILE_TYPE_ZIP,
+	FILE_TYPE_SFO,
 };
 
 enum SortFlags {

main.c

@@ -48,6 +48,7 @@
 #include "language.h"
 #include "utils.h"
 #include "audioplayer.h"
+#include "sfo.h"
 
 int _newlib_heap_size_user = 64 * 1024 * 1024;
 
@@ -279,6 +280,10 @@ int handleFile(char *file, FileListEntry *entry) {
 		case FILE_TYPE_ZIP:
 			res = archiveOpen(file);
 			break;
+
+		case FILE_TYPE_SFO:
+			res = SFOReader(file);
+			break;
 			
 		default:
 			errorDialog(type);

sfo.c

@@ -0,0 +1,112 @@
+#include "main.h"
+#include "archive.h"
+#include "file.h"
+#include "text.h"
+#include "hex.h"
+#include "message_dialog.h"
+#include "theme.h"
+#include "language.h"
+#include "utils.h"
+#include "sfo.h"
+
+int SFOReader(char* file)
+{
+	uint8_t *buffer = malloc(BIG_BUFFER_SIZE);
+	if (!buffer)
+		return -1;
+
+	int size = 0;
+
+	if (isInArchive()) {
+		size = ReadArchiveFile(file, buffer, BIG_BUFFER_SIZE);
+	} else {
+		size = ReadFile(file, buffer, BIG_BUFFER_SIZE);
+	}
+
+	if (size <= 0) {
+		free(buffer);
+		return size;
+	}
+
+	sfo_header_t *sfo_header = (sfo_header_t*)buffer;
+	if (sfo_header->magic != 0x46535000)
+    {
+    	return -1;
+    }
+
+    int scroll_allow = sfo_header->indexTableEntries - MAX_ENTRIES;
+	if (scroll_allow < 0) { scroll_allow = 0; }
+
+	int line_show = sfo_header->indexTableEntries;
+	if (line_show > MAX_ENTRIES) { line_show = MAX_ENTRIES; }
+
+	int current_pos = 0;
+
+	while (1)
+	{
+		readPad();
+
+		if (pressed_buttons & SCE_CTRL_CANCEL)
+		{
+			break;	
+		}
+
+		if (hold_buttons & SCE_CTRL_UP || hold2_buttons & SCE_CTRL_LEFT_ANALOG_UP)
+		{
+			if (current_pos != 0)
+			{
+				current_pos--;
+			}
+		}
+		else if (hold_buttons & SCE_CTRL_DOWN || hold2_buttons & SCE_CTRL_LEFT_ANALOG_DOWN)
+		{
+			if (current_pos != scroll_allow)
+			{
+				current_pos++;
+			}
+		}
+
+		// Start drawing
+		startDrawing();
+
+		// Draw shell info
+		drawShellInfo(file);
+
+	    sfo_index_t *sfo_index;
+	    int i;
+
+	    // Draw scroll bar
+	   	if (scroll_allow > 0) {
+			drawScrollBar(current_pos, sfo_header->indexTableEntries);
+		}
+
+		pgf_draw_textf(SHELL_MARGIN_X + 750, START_Y, GENERAL_COLOR, FONT_SIZE, "%d", scroll_allow);
+		pgf_draw_textf(SHELL_MARGIN_X + 750, START_Y + FONT_Y_SPACE, GENERAL_COLOR, FONT_SIZE, "%d", line_show);
+
+	    // Faire le systéme pour baisé l'écran
+		for (i = 0; i < line_show; i++)
+		{
+			sfo_index = (sfo_index_t*)(buffer + sizeof(sfo_header_t) + (sizeof(sfo_index_t) * (i + current_pos)));
+
+	    	char* key = (char*)buffer + sfo_header->keyTableOffset + sfo_index->keyOffset;
+			pgf_draw_textf(SHELL_MARGIN_X, START_Y + (FONT_Y_SPACE * i), GENERAL_COLOR, FONT_SIZE, "%s", key);
+
+			if (sfo_index->param_fmt == 1028)
+			{
+				unsigned int* value = (unsigned int*)buffer + sfo_header->dataTableOffset + sfo_index->dataOffset;
+				pgf_draw_textf(SHELL_MARGIN_X + 450, START_Y + (FONT_Y_SPACE * i), GENERAL_COLOR, FONT_SIZE, "%d", *value);
+			}
+			else
+			{
+				char* value = (char*)buffer + sfo_header->dataTableOffset + sfo_index->dataOffset;
+				pgf_draw_textf(SHELL_MARGIN_X + 450, START_Y + (FONT_Y_SPACE * i), GENERAL_COLOR, FONT_SIZE, "%s", value);
+			}
+		}
+
+		// End drawing
+		endDrawing();
+	}
+
+	free(buffer);
+	return 0;
+}

sfo.h

@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <psp2/io/stat.h>
+#include <psp2/io/fcntl.h>
+#include <psp2/kernel/processmgr.h>
+
+// Struct from : http://www.vitadevwiki.com/index.php?title=System_File_Object_(SFO)_(PSF)
+
+typedef struct{
+    int magic; //PSF
+    int version; //1.1
+    int keyTableOffset;
+    int dataTableOffset;
+    int indexTableEntries;
+} sfo_header_t;
+
+typedef struct{
+    uint16_t keyOffset; //offset of keytable + keyOffset
+    uint16_t param_fmt; //enum (see below)
+    uint32_t paramLen;
+    uint32_t paramMaxLen;
+    uint32_t dataOffset; //offset of datatable + dataOffset
+} sfo_index_t;
+
+int SFOReader(char* file);