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WIP: Add hex editor

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This commit is contained in:
Pk11 2021-03-09 00:23:19 -06:00
parent 62207ae990
commit f4032dd4dc
5 changed files with 191 additions and 1 deletions
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2
arm9/Makefile
View File

@ -15,7 +15,7 @@ else
GIT_VER := $(shell git describe --abbrev=0 --tags)-$(shell git rev-parse --short HEAD)
endif
# Ensure version.hpp exists
# Ensure version.h exists
ifeq (,$(wildcard include/version.h))
$(shell mkdir -p include)
$(shell touch include/version.h)

6
arm9/source/file_browse.cpp
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@ -38,6 +38,7 @@
#include "driveMenu.h"
#include "driveOperations.h"
#include "dumpOperations.h"
#include "hexEditor.h"
#include "nitrofs.h"
#include "inifile.h"
#include "nds_loader_arm9.h"
@ -231,6 +232,8 @@ FileOperation fileBrowse_A(DirEntry* entry, char path[PATH_MAX]) {
assignedOp[++maxCursors] = FileOperation::mountImg;
printf(" Mount as FAT image\n");
}
assignedOp[++maxCursors] = FileOperation::hexEdit;
printf(" Open in hex editor\n");
}
assignedOp[++maxCursors] = FileOperation::showInfo;
printf(entry->isDirectory ? " Show directory info\n" : " Show file info\n");
@ -375,6 +378,9 @@ FileOperation fileBrowse_A(DirEntry* entry, char path[PATH_MAX]) {
currentDrive = 6;
}
break;
} case FileOperation::hexEdit: {
hexEditor(entry->name.c_str());
break;
} case FileOperation::none: {
break;
}

1
arm9/source/file_browse.h
View File

@ -43,6 +43,7 @@ enum class FileOperation {
showInfo,
copySdOut,
copyFatOut,
hexEdit,
};
bool extension(const std::string &filename, const std::vector<std::string> &extensions);

177
arm9/source/hexEditor.cpp Normal file
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@ -0,0 +1,177 @@
#include "hexEditor.h"
#include "tonccpy.h"
#include <nds.h>
#include <stdio.h>
u32 jumpToOffset(u32 offset) {
consoleClear();
u8 cursorPosition = 0;
u16 pressed = 0, held = 0;
while(1) {
printf("\x1B[9;6H\x1B[47m-------------------");
printf("\x1B[10;8H\x1B[47mJump to Offset");
printf("\x1B[12;11H\x1B[33m%08lx", offset);
printf("\x1B[12;%dH\x1B[43m%lx", 17 - cursorPosition, (offset >> ((cursorPosition + 1) * 4)) & 0xF);
printf("\x1B[13;6H\x1B[47m-------------------");
do {
swiWaitForVBlank();
scanKeys();
pressed = keysDown();
held = keysDownRepeat();
} while(!held);
if(held & KEY_UP) {
offset += 0x10 << (cursorPosition * 4);
} else if(held & KEY_DOWN) {
offset -= 0x10 << (cursorPosition * 4);
} else if(held & KEY_LEFT) {
if(cursorPosition < 6)
cursorPosition++;
} else if(held & KEY_RIGHT) {
if(cursorPosition > 0)
cursorPosition--;
} else if(pressed & (KEY_A | KEY_B)) {
return offset;
}
}
}
void hexEditor(const char *path) {
FILE *file = fopen(path, "rb+");
if(!file)
return;
consoleClear();
fseek(file, 0, SEEK_END);
u32 fileSize = ftell(file);
fseek(file, 0, SEEK_SET);
u8 cursorPosition = 0, mode = 0;
u16 pressed = 0, held = 0;
u32 offset = 0;
char data[8 * 23];
fseek(file, offset, SEEK_SET);
fread(data, 1, sizeof(data), file);
while(1) {
printf("\x1B[0;11H\x1B[42mHex Editor");
printf("\x1B[0;0H\x1B[37m%04lx", offset >> 0x10);
if(mode < 2 && held & (KEY_UP | KEY_DOWN | KEY_LEFT | KEY_RIGHT)) {
fseek(file, offset, SEEK_SET);
fread(data, 1, sizeof(data), file);
}
for(int i = 0; i < 23; i++) {
printf("\x1B[%d;0H\x1B[37m%04lx", i + 1, (offset + i * 8) & 0xFFFF);
for(int j = 0; j < 4; j++)
printf("\x1B[%d;%dH\x1B[%dm%02x", i + 1, 5 + (j * 2), (mode > 0 && i * 8 + j == cursorPosition) ? (mode > 1 ? 41 : 31) : 33, data[i * 8 + j]);
for(int j = 0; j < 4; j++)
printf("\x1B[%d;%dH\x1B[%dm%02x", i + 1, 14 + (j * 2), (mode > 0 && i * 8 + 4 + j == cursorPosition) ? (mode > 1 ? 41 : 31) : 33, data[i * 8 + 4 + j]);
char line[9] = {0};
for(int j = 0; j < 8; j++) {
char c = data[i * 8 + j];
if(c < ' ' || c > 127)
line[j] = ' ';
else
line[j] = c;
}
printf("\x1B[%d;%dH\x1B[47m%.8s", i + 1, 23, line);
}
// Change color of selected char
if(mode > 0)
printf("\x1B[%d;%dH\x1B[%dm%c", 1 + cursorPosition / 8, 23 + cursorPosition % 8, mode > 1 ? 41 : 31, data[cursorPosition]);
do {
swiWaitForVBlank();
scanKeys();
pressed = keysDown();
held = keysDownRepeat();
} while(!held);
if(mode == 0) {
if (held & KEY_UP) {
if(offset > 8)
offset -= 8;
else
offset = 0;
} else if (held & KEY_DOWN) {
if(offset < fileSize - 8 * 23)
offset += 8;
else
offset = fileSize - 8 * 23;
} else if (held & KEY_LEFT) {
if(offset > 8 * 23)
offset -= 8 * 23;
else
offset = 0;
} else if (held & KEY_RIGHT) {
if(offset < fileSize - 8 * 23)
offset += 8 * 23;
else
offset = fileSize - 8 * 23;
} else if (pressed & KEY_A) {
mode = 1;
} else if (pressed & KEY_B) {
return;
} else if(pressed & KEY_Y) {
offset = jumpToOffset(offset);
consoleClear();
}
} else if(mode == 1) {
if (held & KEY_UP) {
if(cursorPosition >= 8)
cursorPosition -= 8;
else if(offset > 8)
offset -= 8;
else
offset = 0;
} else if (held & KEY_DOWN) {
if(cursorPosition < 8 * 22)
cursorPosition += 8;
else if(offset < fileSize - 8 * 23)
offset += 8;
else
offset = fileSize - 8 * 23;
} else if (held & KEY_LEFT) {
if(cursorPosition > 0)
cursorPosition--;
} else if (held & KEY_RIGHT) {
if(cursorPosition < 8 * 23 - 1)
cursorPosition++;
} else if (pressed & KEY_A) {
mode = 2;
} else if (pressed & KEY_B) {
mode = 0;
} else if(pressed & KEY_Y) {
offset = jumpToOffset(offset);
consoleClear();
}
} else if(mode == 2) {
if (held & KEY_UP) {
data[cursorPosition]++;
} else if (held & KEY_DOWN) {
data[cursorPosition]--;
} else if (held & KEY_LEFT) {
data[cursorPosition] += 0x10;
} else if (held & KEY_RIGHT) {
data[cursorPosition] -= 0x10;
} else if (pressed & (KEY_A | KEY_B)) {
mode = 1;
fseek(file, offset + cursorPosition, SEEK_SET);
fwrite(data + cursorPosition, 1, 1, file);
}
}
}
fclose(file);
}

6
arm9/source/hexEditor.h Normal file
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@ -0,0 +1,6 @@
#ifndef HEX_EDITOR_H
#define HEX_EDITOR_H
void hexEditor(const char *path);
#endif