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Merge pull request #1344 from reicast/baka/emptyvmu 

Maple: Corrected creation of empty VMU
This commit is contained in:
Abandoned Cart 2018-08-27 09:11:24 -04:00 committed by GitHub
parent 2703c6574e bc873cb228
commit 6289c72a37
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 75 additions and 43 deletions
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46
core/hw/maple/maple_devs.cpp
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@ -272,6 +272,20 @@ struct maple_sega_vmu: maple_base
u8 lcd_data[192];
u8 lcd_data_decoded[48*32];
// creates an empty VMU
bool init_emptyvmu()
{
printf("Initialising empty VMU...\n");
uLongf dec_sz = sizeof(flash_data);
int rv = uncompress(flash_data, &dec_sz, vmu_default, sizeof(vmu_default));
verify(rv == Z_OK);
verify(dec_sz == sizeof(flash_data));
return (rv == Z_OK && dec_sz == sizeof(flash_data));
}
virtual void OnSetup()
{
memset(flash_data, 0, sizeof(flash_data));
@ -286,10 +300,15 @@ struct maple_sega_vmu: maple_base
printf("Unable to open VMU save file \"%s\", creating new file\n",apath.c_str());
file = fopen(apath.c_str(), "wb");
if (file) {
if (!init_emptyvmu())
printf("Failed to initialize an empty VMU, you should reformat it using the BIOS\n");
fwrite(flash_data, sizeof(flash_data), 1, file);
fseek(file, 0, SEEK_SET);
} else {
printf("Unable to create vmu\n");
}
else
{
printf("Unable to create VMU!\n");
}
}
@ -307,12 +326,25 @@ struct maple_sega_vmu: maple_base
sum |= flash_data[i];
if (sum == 0) {
printf("Initialising empty vmu...\n");
uLongf dec_sz = sizeof(flash_data);
int rv=uncompress(flash_data, &dec_sz, vmu_default, sizeof(vmu_default));
// This means the existing VMU file is completely empty and needs to be recreated
verify(rv == Z_OK);
verify(dec_sz == sizeof(flash_data));
if (init_emptyvmu())
{
if (!file)
file = fopen(apath.c_str(), "wb");
if (file) {
fwrite(flash_data, sizeof(flash_data), 1, file);
fseek(file, 0, SEEK_SET);
}
else {
printf("Unable to create VMU!\n");
}
}
else
{
printf("Failed to initialize an empty VMU, you should reformat it using the BIOS\n");
}
}
}