screenshots

screenshot.c

// taken from d9wip

#define TOP_SCREEN0 (u8*)(*(u32*)0x23FFFE00)
#define TOP_SCREEN1 (u8*)(*(u32*)0x23FFFE00)
#define BOT_SCREEN0 (u8*)(*(u32*)0x23FFFE08)

void Screenshot(const char* path)
{
    u8* buffer = (u8*) 0x21000054; // careful, this area is used by other functions in Decrypt9
    u8* buffer_t = buffer + 54 + (400 * 240 * 3);
    u8 bmp_header[54] = {
        0x42, 0x4D, 0x36, 0xCA, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x28, 0x00,
        0x00, 0x00, 0x90, 0x01, 0x00, 0x00, 0xE0, 0x01, 0x00, 0x00, 0x01, 0x00, 0x18, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0xCA, 0x08, 0x00, 0x12, 0x0B, 0x00, 0x00, 0x12, 0x0B, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00
    };
	memcpy(buffer, bmp_header, 54);
	buffer += 54;
	for(u32 i = 0; i < 400 * 240 * 3 * 2; i++) buffer[i] = 0x1F;
    for (u32 x = 0; x < 400; x++)
        for (u32 y = 0; y < 240; y++)
            memcpy(buffer_t + (y*400 + x) * 3, TOP_SCREEN0 + (x*240 + y) * 3, 3);
    for (u32 x = 0; x < 320; x++)
        for (u32 y = 0; y < 240; y++)
            memcpy(buffer + (y*400 + x + 40) * 3, BOT_SCREEN0 + (x*240 + y) * 3, 3);
	fileWrite(buffer - 54, path, 54 + 400 * 240 * 3 * 2);		
}