You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
329 lines
9.4 KiB
C++
329 lines
9.4 KiB
C++
#include "loadland.hpp"
|
|
|
|
#include <utility>
|
|
|
|
#include <OpenThreads/ScopedLock>
|
|
|
|
#include "esmreader.hpp"
|
|
#include "esmwriter.hpp"
|
|
#include "defs.hpp"
|
|
|
|
namespace ESM
|
|
{
|
|
unsigned int Land::sRecordId = REC_LAND;
|
|
|
|
Land::Land()
|
|
: mFlags(0)
|
|
, mX(0)
|
|
, mY(0)
|
|
, mPlugin(0)
|
|
, mDataTypes(0)
|
|
, mDataLoaded(false)
|
|
, mLandData(NULL)
|
|
{
|
|
}
|
|
|
|
void transposeTextureData(const uint16_t *in, uint16_t *out)
|
|
{
|
|
int readPos = 0; //bit ugly, but it works
|
|
for ( int y1 = 0; y1 < 4; y1++ )
|
|
for ( int x1 = 0; x1 < 4; x1++ )
|
|
for ( int y2 = 0; y2 < 4; y2++)
|
|
for ( int x2 = 0; x2 < 4; x2++ )
|
|
out[(y1*4+y2)*16+(x1*4+x2)] = in[readPos++];
|
|
}
|
|
|
|
Land::~Land()
|
|
{
|
|
delete mLandData;
|
|
}
|
|
|
|
void Land::load(ESMReader &esm, bool &isDeleted)
|
|
{
|
|
isDeleted = false;
|
|
|
|
mPlugin = esm.getIndex();
|
|
|
|
bool hasLocation = false;
|
|
bool isLoaded = false;
|
|
while (!isLoaded && esm.hasMoreSubs())
|
|
{
|
|
esm.getSubName();
|
|
switch (esm.retSubName().intval)
|
|
{
|
|
case ESM::FourCC<'I','N','T','V'>::value:
|
|
esm.getSubHeaderIs(8);
|
|
esm.getT<int>(mX);
|
|
esm.getT<int>(mY);
|
|
hasLocation = true;
|
|
break;
|
|
case ESM::FourCC<'D','A','T','A'>::value:
|
|
esm.getHT(mFlags);
|
|
break;
|
|
case ESM::SREC_DELE:
|
|
esm.skipHSub();
|
|
isDeleted = true;
|
|
break;
|
|
default:
|
|
esm.cacheSubName();
|
|
isLoaded = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!hasLocation)
|
|
esm.fail("Missing INTV subrecord");
|
|
|
|
mContext = esm.getContext();
|
|
|
|
mDataLoaded = 0;
|
|
mLandData = NULL;
|
|
|
|
// Skip the land data here. Load it when the cell is loaded.
|
|
while (esm.hasMoreSubs())
|
|
{
|
|
esm.getSubName();
|
|
switch (esm.retSubName().intval)
|
|
{
|
|
case ESM::FourCC<'V','N','M','L'>::value:
|
|
esm.skipHSub();
|
|
mDataTypes |= DATA_VNML;
|
|
break;
|
|
case ESM::FourCC<'V','H','G','T'>::value:
|
|
esm.skipHSub();
|
|
mDataTypes |= DATA_VHGT;
|
|
break;
|
|
case ESM::FourCC<'W','N','A','M'>::value:
|
|
esm.getHExact(mWnam, sizeof(mWnam));
|
|
mDataTypes |= DATA_WNAM;
|
|
break;
|
|
case ESM::FourCC<'V','C','L','R'>::value:
|
|
esm.skipHSub();
|
|
mDataTypes |= DATA_VCLR;
|
|
break;
|
|
case ESM::FourCC<'V','T','E','X'>::value:
|
|
esm.skipHSub();
|
|
mDataTypes |= DATA_VTEX;
|
|
break;
|
|
default:
|
|
esm.fail("Unknown subrecord");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Land::save(ESMWriter &esm, bool isDeleted) const
|
|
{
|
|
esm.startSubRecord("INTV");
|
|
esm.writeT(mX);
|
|
esm.writeT(mY);
|
|
esm.endRecord("INTV");
|
|
|
|
esm.writeHNT("DATA", mFlags);
|
|
|
|
if (isDeleted)
|
|
{
|
|
esm.writeHNCString("DELE", "");
|
|
return;
|
|
}
|
|
|
|
if (mLandData)
|
|
{
|
|
if (mDataTypes & Land::DATA_VNML) {
|
|
esm.writeHNT("VNML", mLandData->mNormals, sizeof(mLandData->mNormals));
|
|
}
|
|
if (mDataTypes & Land::DATA_VHGT) {
|
|
VHGT offsets;
|
|
offsets.mHeightOffset = mLandData->mHeights[0] / HEIGHT_SCALE;
|
|
offsets.mUnk1 = mLandData->mUnk1;
|
|
offsets.mUnk2 = mLandData->mUnk2;
|
|
|
|
float prevY = mLandData->mHeights[0];
|
|
int number = 0; // avoid multiplication
|
|
for (int i = 0; i < LAND_SIZE; ++i) {
|
|
float diff = (mLandData->mHeights[number] - prevY) / HEIGHT_SCALE;
|
|
offsets.mHeightData[number] =
|
|
(diff >= 0) ? (int8_t) (diff + 0.5) : (int8_t) (diff - 0.5);
|
|
|
|
float prevX = prevY = mLandData->mHeights[number];
|
|
++number;
|
|
|
|
for (int j = 1; j < LAND_SIZE; ++j) {
|
|
diff = (mLandData->mHeights[number] - prevX) / HEIGHT_SCALE;
|
|
offsets.mHeightData[number] =
|
|
(diff >= 0) ? (int8_t) (diff + 0.5) : (int8_t) (diff - 0.5);
|
|
|
|
prevX = mLandData->mHeights[number];
|
|
++number;
|
|
}
|
|
}
|
|
esm.writeHNT("VHGT", offsets, sizeof(VHGT));
|
|
}
|
|
}
|
|
|
|
if (mDataTypes & Land::DATA_WNAM) {
|
|
esm.writeHNT("WNAM", mWnam, 81);
|
|
}
|
|
|
|
if (mLandData)
|
|
{
|
|
if (mDataTypes & Land::DATA_VCLR) {
|
|
esm.writeHNT("VCLR", mLandData->mColours, 3*LAND_NUM_VERTS);
|
|
}
|
|
if (mDataTypes & Land::DATA_VTEX) {
|
|
uint16_t vtex[LAND_NUM_TEXTURES];
|
|
transposeTextureData(mLandData->mTextures, vtex);
|
|
esm.writeHNT("VTEX", vtex, sizeof(vtex));
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void Land::loadData(int flags) const
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
|
|
|
|
// Try to load only available data
|
|
flags = flags & mDataTypes;
|
|
// Return if all required data is loaded
|
|
if ((mDataLoaded & flags) == flags) {
|
|
return;
|
|
}
|
|
// Create storage if nothing is loaded
|
|
if (mLandData == NULL) {
|
|
mLandData = new LandData;
|
|
}
|
|
|
|
ESM::ESMReader reader;
|
|
reader.restoreContext(mContext);
|
|
|
|
if (reader.isNextSub("VNML")) {
|
|
condLoad(reader, flags, DATA_VNML, mLandData->mNormals, sizeof(mLandData->mNormals));
|
|
}
|
|
|
|
if (reader.isNextSub("VHGT")) {
|
|
VHGT vhgt;
|
|
if (condLoad(reader, flags, DATA_VHGT, &vhgt, sizeof(vhgt))) {
|
|
float rowOffset = vhgt.mHeightOffset;
|
|
for (int y = 0; y < LAND_SIZE; y++) {
|
|
rowOffset += vhgt.mHeightData[y * LAND_SIZE];
|
|
|
|
mLandData->mHeights[y * LAND_SIZE] = rowOffset * HEIGHT_SCALE;
|
|
|
|
float colOffset = rowOffset;
|
|
for (int x = 1; x < LAND_SIZE; x++) {
|
|
colOffset += vhgt.mHeightData[y * LAND_SIZE + x];
|
|
mLandData->mHeights[x + y * LAND_SIZE] = colOffset * HEIGHT_SCALE;
|
|
}
|
|
}
|
|
mLandData->mUnk1 = vhgt.mUnk1;
|
|
mLandData->mUnk2 = vhgt.mUnk2;
|
|
}
|
|
}
|
|
|
|
if (reader.isNextSub("WNAM"))
|
|
reader.skipHSub();
|
|
|
|
if (reader.isNextSub("VCLR"))
|
|
condLoad(reader, flags, DATA_VCLR, mLandData->mColours, 3 * LAND_NUM_VERTS);
|
|
if (reader.isNextSub("VTEX")) {
|
|
uint16_t vtex[LAND_NUM_TEXTURES];
|
|
if (condLoad(reader, flags, DATA_VTEX, vtex, sizeof(vtex))) {
|
|
transposeTextureData(vtex, mLandData->mTextures);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Land::unloadData() const
|
|
{
|
|
if (mDataLoaded)
|
|
{
|
|
delete mLandData;
|
|
mLandData = NULL;
|
|
mDataLoaded = 0;
|
|
}
|
|
}
|
|
|
|
bool Land::condLoad(ESM::ESMReader& reader, int flags, int dataFlag, void *ptr, unsigned int size) const
|
|
{
|
|
if ((mDataLoaded & dataFlag) == 0 && (flags & dataFlag) != 0) {
|
|
reader.getHExact(ptr, size);
|
|
mDataLoaded |= dataFlag;
|
|
return true;
|
|
}
|
|
reader.skipHSubSize(size);
|
|
return false;
|
|
}
|
|
|
|
bool Land::isDataLoaded(int flags) const
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
|
|
return (mDataLoaded & flags) == (flags & mDataTypes);
|
|
}
|
|
|
|
Land::Land (const Land& land)
|
|
: mFlags (land.mFlags), mX (land.mX), mY (land.mY), mPlugin (land.mPlugin),
|
|
mContext (land.mContext), mDataTypes (land.mDataTypes),
|
|
mDataLoaded (land.mDataLoaded),
|
|
mLandData (land.mLandData ? new LandData (*land.mLandData) : 0)
|
|
{}
|
|
|
|
Land& Land::operator= (Land land)
|
|
{
|
|
swap (land);
|
|
return *this;
|
|
}
|
|
|
|
void Land::swap (Land& land)
|
|
{
|
|
std::swap (mFlags, land.mFlags);
|
|
std::swap (mX, land.mX);
|
|
std::swap (mY, land.mY);
|
|
std::swap (mPlugin, land.mPlugin);
|
|
std::swap (mContext, land.mContext);
|
|
std::swap (mDataTypes, land.mDataTypes);
|
|
std::swap (mDataLoaded, land.mDataLoaded);
|
|
std::swap (mLandData, land.mLandData);
|
|
}
|
|
|
|
const Land::LandData *Land::getLandData (int flags) const
|
|
{
|
|
if (!(flags & mDataTypes))
|
|
return 0;
|
|
|
|
loadData (flags);
|
|
return mLandData;
|
|
}
|
|
|
|
const Land::LandData *Land::getLandData() const
|
|
{
|
|
return mLandData;
|
|
}
|
|
|
|
Land::LandData *Land::getLandData()
|
|
{
|
|
return mLandData;
|
|
}
|
|
|
|
void Land::add (int flags)
|
|
{
|
|
if (!mLandData)
|
|
mLandData = new LandData;
|
|
|
|
mDataTypes |= flags;
|
|
mDataLoaded |= flags;
|
|
}
|
|
|
|
void Land::remove (int flags)
|
|
{
|
|
mDataTypes &= ~flags;
|
|
mDataLoaded &= ~flags;
|
|
|
|
if (!mDataLoaded)
|
|
{
|
|
delete mLandData;
|
|
mLandData = 0;
|
|
}
|
|
}
|
|
}
|