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FREESCAPE: support for two different Driller Amstrad CPC releases directly from their edsk files

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This commit is contained in:
neuromancer 2022-12-29 13:42:36 -03:00
parent d6100aa891
commit aea468c6c8
3 changed files with 31 additions and 11 deletions
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14
engines/freescape/detection.cpp
View File

@ -68,7 +68,19 @@ static const ADGameDescription gameDescriptions[] = {
},
Common::EN_ANY,
Common::kPlatformAmstradCPC,
ADGF_TESTING,
ADGF_CPC_RETAIL | ADGF_TESTING,
GUIO2(GUIO_NOMIDI, GAMEOPTION_AUTOMATIC_DRILLING)
},
{
"driller",
"",
{
{"DRILLER.CPC.EDSK", 0, "252f90756eaee25f2231e8d3bfaab68f", 125952},
AD_LISTEND
},
Common::EN_ANY,
Common::kPlatformAmstradCPC,
ADGF_CPC_ZAFIRO | ADGF_TESTING,
GUIO2(GUIO_NOMIDI, GAMEOPTION_AUTOMATIC_DRILLING)
},
{

2
engines/freescape/freescape.h
View File

@ -347,6 +347,8 @@ enum DrillerReleaseFlags {
ADGF_AMIGA_BUDGET = (1 << 1),
ADGF_ZX_RETAIL = (1 << 2),
ADGF_ZX_MUSICAL = (1 << 3),
ADGF_CPC_RETAIL = (1 << 4),
ADGF_CPC_ZAFIRO = (1 << 5),
};
class DrillerEngine : public FreescapeEngine {

26
engines/freescape/games/driller.cpp
View File

@ -368,31 +368,31 @@ Common::SeekableReadStream *parseEDSK(const Common::String filename) {
// We don't know the final size, but we allocate enough
byte *memBuffer = (byte *)malloc(size);
byte ntracks = edskBuffer[48] - 2;
byte nsides = edskBuffer[49];
assert(nsides == 1);
int ntracks = 0;
int i = 256;
int j = 0;
while (ntracks > 0) {
ntracks--;
while (i + 1 < size) {
byte ssize = edskBuffer[i + 0x14];
int start = i + 0x100;
debugC(1, kFreescapeDebugParser, "sector size: %d", ssize);
if (ssize == 2) {
i = i + 9 * 512 + 256;
} else if (ssize == 5) {
i = i + 8 * 512 + 256;
} else if (ssize == 0) {
i = i + 0x8400;
i = size - 1;
} else if (ssize == 3) {
break; // Not sure
} else {
assert(ntracks == 0);
error("ssize: %d", ssize);
}
int osize = i - start;
debugC(1, kFreescapeDebugParser, "copying start: %x size: %x", start, osize);
debugC(1, kFreescapeDebugParser, "copying track %d start: %x size: %x", ntracks, start, osize);
memcpy(memBuffer + j, edskBuffer + start, osize);
j = j + osize;
ntracks++;
}
free(edskBuffer);
return (new Common::MemoryReadStream(memBuffer, size));
@ -507,7 +507,13 @@ void DrillerEngine::loadAssetsFullGame() {
//loadFonts(&file, 0x62ca);
//loadGlobalObjects(&file, 0x1c93);
load8bitBinary(stream, 0xec76, 4);
if (_variant & ADGF_CPC_RETAIL)
load8bitBinary(stream, 0xec76, 4);
else if (_variant & ADGF_CPC_ZAFIRO)
load8bitBinary(stream, 0xda76, 4);
else
error("Unknown Amstrad CPC variant");
} else if (_renderMode == Common::kRenderEGA) {
loadBundledImages();
file.open("DRILLE.EXE");