fxsdk/fxgxa/edit.c
2022-03-20 19:58:11 +00:00

139 lines
3 KiB
C

#include <fxgxa.h>
#include <stdio.h>
#include <string.h>
#include <endianness.h>
void sign(void *gxa, size_t size)
{
if(is_g1a(gxa)) {
struct g1a_header *header = gxa;
/* Fixed elements */
memcpy(header->magic, "USBPower", 8);
header->mcs_type = 0xf3;
memcpy(header->seq1, "\x00\x10\x00\x10\x00", 5);
header->seq2 = 0x01;
header->filesize_be1 = htobe32(size);
header->filesize_be2 = htobe32(size);
/* Control bytes and checksums */
header->control1 = size + 0x41;
header->control2 = size + 0xb8;
header->checksum = htobe16(checksum_g1a(gxa, size));
}
else if(is_g3a(gxa)) {
struct g3a_header *header = gxa;
/* Fixed elements */
memcpy(header->magic, "USBPower", 8);
header->mcs_type = 0x2c;
memcpy(header->seq1, "\x00\x01\x00\x01\x00", 5);
header->seq2 = 0x01;
memcpy(header->seq3, "\x01\x01", 2);
header->filesize_be1 = htobe32(size);
header->filesize_be2 = htobe32(size - 0x7000 - 4);
header->filesize_be3 = htobe32(size);
/* Control bytes and checksums */
header->control1 = size + 0x41;
header->control2 = size + 0xb8;
header->checksum = htobe16(checksum_g3a(gxa, size));
header->checksum_2 = htobe32(checksum_g3a_2(gxa, size));
/* Last 4 bytes */
uint32_t *footer = gxa + size - 4;
*footer = header->checksum_2;
}
}
void edit_name(void *gxa, const char *name)
{
if(is_g1a(gxa)) {
memset(G1A(gxa)->header.name, 0, 8);
if(!name) return;
for(int i = 0; name[i] && i < 8; i++)
G1A(gxa)->header.name[i] = name[i];
}
else if(is_g3a(gxa)) {
memset(G3A(gxa)->header.name, 0, 16);
if(!name) return;
for(int i = 0; name[i] && i < 16; i++)
G3A(gxa)->header.name[i] = name[i];
for(int j = 0; j < 8; j++) {
memset(G3A(gxa)->header.label[j], 0, 24);
for(int i = 0; name[i] && i < 24; i++)
G3A(gxa)->header.label[j][i] = name[i];
}
}
}
void edit_internal(void *gxa, const char *internal)
{
char *dst = NULL;
int size = 0;
if(is_g1a(gxa)) {
dst = G1A(gxa)->header.internal;
size = 8;
}
else if(is_g3a(gxa)) {
dst = G3A(gxa)->header.internal;
size = 11;
}
memset(dst, 0, size);
if(!internal) return;
for(int i = 0; internal[i] && i < size; i++)
dst[i] = internal[i];
}
void edit_version(void *gxa, const char *version)
{
char *dst = NULL;
int size = 10;
if(is_g1a(gxa))
dst = G1A(gxa)->header.version;
else if(is_g3a(gxa))
dst = G3A(gxa)->header.version;
memset(dst, 0, size);
if(!version) return;
for(int i = 0; version[i] && i < size; i++)
dst[i] = version[i];
}
void edit_date(void *gxa, const char *date)
{
char *dst = NULL;
int size = 14;
if(is_g1a(gxa))
dst = G1A(gxa)->header.date;
else if(is_g3a(gxa))
dst = G3A(gxa)->header.date;
memset(dst, 0, size);
if(!date) return;
for(int i = 0; date[i] && i < size; i++)
dst[i] = date[i];
}
void edit_g1a_icon(struct g1a *g1a, uint8_t const *mono)
{
memcpy(g1a->header.icon, mono, 68);
}
void edit_g3a_icon(struct g3a *g3a, uint16_t const *icon, bool selected)
{
if(selected)
memcpy(g3a->header.icon_sel, icon, 92*64*2);
else
memcpy(g3a->header.icon_uns, icon, 92*64*2);
}