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Luma3DS-3GX/thread/source/thread.c

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/*
* thread.c
* by Reisyukaku
* Copyright (c) 2015 All Rights Reserved
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*/
#include <wchar.h>
#include <stdio.h>
#include "thread.h"
#include "lib.h"
#include "FS.h"
#define VRAM (unsigned char*)0x18000000
#define FCRAM (unsigned char*)0x20000000
#define FCRAM_EXT (unsigned char*)0x28000000
#define ARM9_MEM (unsigned char*)0x8000000
#define AXIWRAM (unsigned char*)0x1FF80000
#define TOP_FRAME 0
#define BOT_FRAME 1
unsigned char handle[32];
unsigned char bmpHead[] = {
0x42, 0x4D, 0x36, 0x65, 0x04, 0x00, 0x00, 0x00,
0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x28, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0xF0, 0x00,
0x00, 0x00, 0x01, 0x00, 0x18, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x65, 0x04, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
void memdump(void* filename, void* buf, unsigned int size){
unsigned int br = 0;
memset(&handle, 0, 32);
fopen9(&handle, filename, 6);
fwrite9(&handle, &br, buf, size);
fclose9(&handle);
memset(VRAM+0x1E6000, 0xFF, 0x46500);
}
void transpose (void * dst, const void * src, unsigned dim1, unsigned dim2, unsigned item_length) {
char * ptr_write;
const char * ptr_read;
unsigned x, y, z;
for (x = 0; x < dim1; x ++) for (y = 0; y < dim2; y ++) {
ptr_write = ((char *) dst) + item_length * (y * dim1 + x);
ptr_read = ((const char *) src) + item_length * (x * dim2 + y);
for (z = 0; z < item_length; z ++) *(ptr_write ++) = *(ptr_read ++);
}
}
void screenShot(int frame){
unsigned int br;
short width = frame == 0 ? 400 : 320;
short height = 240;
int frameOff = frame == 0 ? 0x1E6000 : 0x48F000; //<- Defaults
int length = frame == 0 ? 0x46500 : 0x38400;
memset(&handle, 0, 32);
fopen9(&handle, frame == 0 ? L"sdmc:/screen_top.bmp" : L"sdmc:/screen_bot.bmp", 6);
transpose(FCRAM+0xF80000, VRAM+frameOff, width, height, 3);
bmpHead[18] = frame == 0 ? 0x90 : 0x40;
fwrite9(&handle, &br, bmpHead, 0x36);
fwrite9(&handle, &br, FCRAM+0xF80000, length);
fclose9(&handle);
memset(VRAM+frameOff, 0xFF, 0x46500);
}
void patches(void){
//Change version string
for(int i = 0; i < 0x600000; i+=4){
if(strcomp((void*)0x27B00000 - i, (void*)L"Ver.", 4)){
if(strcomp((void*)0x27B00000 - i + 0x28, (void*)"T_ver_00", 4)) strcopy((void*)0x27B00000 - i, (void*)L"\uE024Rei", 4);
}
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}
}
void thread(void){
while(1){
if(isPressed(BUTTON_SELECT | BUTTON_X)){
screenShot(TOP_FRAME);
screenShot(BOT_FRAME);
}
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if(isPressed(BUTTON_START | BUTTON_X)){
memdump(L"sdmc:/FCRAM.bin", (void*)0x27500000, 0x600000);
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}
patches();
}
__asm("SVC 0x09");
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}