static BOOL DLL_CALLCONV
Validate(FreeImageIO *io, fi_handle handle) {
DWORD type = 0;
// read chunk type
io->read_proc(&type, 4, 1, handle);
#ifndef FREEIMAGE_BIGENDIAN
SwapLong(&type);
#endif
if(type != ID_FORM)
return FALSE;
// skip 4 bytes
io->read_proc(&type, 4, 1, handle);
// read chunk type
io->read_proc(&type, 4, 1, handle);
#ifndef FREEIMAGE_BIGENDIAN
SwapLong(&type);
#endif
// File format : ID_PBM = Packed Bitmap, ID_ILBM = Interleaved Bitmap
return (type == ID_ILBM) || (type == ID_PBM);
}
//
// R_LoadVoxelResource
//
// Loads a .vox-format voxel model into an rvoxelmodel_t structure.
//
rvoxelmodel_t *R_LoadVoxelResource(int lumpnum)
{
rvoxelmodel_t *model = NULL;
byte *buffer = NULL, *rover = NULL;
int lumplen = W_LumpLength(lumpnum);
int xsize, ysize, zsize, voxsize;
int i;
// minimum size test
if(lumplen < 12)
return NULL;
// cache the lump
rover = buffer = (byte *)(wGlobalDir.cacheLumpNum(lumpnum, PU_STATIC));
// get sizes
xsize = SwapLong(*(int32_t *)rover);
rover += 4;
ysize = SwapLong(*(int32_t *)rover);
rover += 4;
zsize = SwapLong(*(int32_t *)rover);
rover += 4;
voxsize = xsize*ysize*zsize;
// true size test
if(lumplen < 12 + voxsize + 768)
{
Z_ChangeTag(buffer, PU_CACHE);
return NULL;
}
// create the model and its voxel buffer
model = (rvoxelmodel_t *)(Z_Calloc(1, sizeof(rvoxelmodel_t), PU_RENDERER, NULL));
model->voxels = (byte *)(Z_Calloc(voxsize, sizeof(byte), PU_RENDERER, NULL));
model->xsize = xsize;
model->ysize = ysize;
model->zsize = zsize;
// get voxel data
memcpy(model->voxels, rover, voxsize);
rover += voxsize;
// get original palette data
memcpy(model->palette, rover, 768);
// transform palette data into 0-255 range
// TODO: verify color component order
for(i = 0; i < 768; i++)
model->palette[i] <<= 2;
// TODO: run V_FindBestColor to create translated palette?
// done with lump
Z_ChangeTag(buffer, PU_CACHE);
return model;
}
static void
SwapFileHeader(BITMAPFILEHEADER *header) {
SwapShort(&header->bfType);
SwapLong(&header->bfSize);
SwapShort(&header->bfReserved1);
SwapShort(&header->bfReserved2);
SwapLong(&header->bfOffBits);
}
static void
SwapHeader(SGIHeader *header) {
SwapShort(&header->magic);
SwapShort(&header->dimension);
SwapShort(&header->xsize);
SwapShort(&header->ysize);
SwapShort(&header->zsize);
SwapLong((DWORD*)&header->pixmin);
SwapLong((DWORD*)&header->pixmax);
SwapLong((DWORD*)&header->colormap);
}
static void F_DrawPatchCol(int x, patch_t* patch, int col)
{
const column_t* column =
(const column_t*)((byte*) patch + SwapLong(patch->columnofs[col]));
// step through the posts in a column
if (hires)
while (column->topdelta != 0xff)
{
byte* desttop = screens[0] + x * 2;
const byte* source = (byte*) column + 3;
byte* dest = desttop + column->topdelta * SCREENWIDTH * 4;
int count = column->length;
for (; count--; dest += SCREENWIDTH * 4)
dest[0] = dest[SCREENWIDTH * 2] = dest[1] = dest[SCREENWIDTH * 2 + 1] =
*source++;
column = (column_t*)(source + 1);
}
else
while (column->topdelta != 0xff)
{
byte* desttop = screens[0] + x;
const byte* source = (byte*) column + 3;
byte* dest = desttop + column->topdelta * SCREENWIDTH;
int count = column->length;
for (; count--; dest += SCREENWIDTH)
* dest = *source++;
column = (column_t*)(source + 1);
}
}
static void
SwapCoreHeader(BITMAPCOREHEADER *header) {
SwapLong(&header->bcSize);
SwapShort(&header->bcWidth);
SwapShort(&header->bcHeight);
SwapShort(&header->bcPlanes);
SwapShort(&header->bcBitCnt);
}
static void
SwapOS21XHeader(BITMAPINFOOS2_1X_HEADER *header) {
SwapLong(&header->biSize);
SwapShort(&header->biWidth);
SwapShort(&header->biHeight);
SwapShort(&header->biPlanes);
SwapShort(&header->biBitCount);
}
/********************************************************************
* ConvertUnsignedLongBuffer
********************************************************************/
void ConvertUnsignedLongBuffer(unsigned long *buffer, unsigned long nbLongs)
{
while (nbLongs-- > 0)
{
*buffer = SwapLong(*buffer);
buffer++;
}
}
static FIBITMAP * DLL_CALLCONV
Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
if (handle != NULL) {
BITMAPFILEHEADER bitmapfileheader;
DWORD type = 0;
BYTE magic[2];
// we use this offset value to make seemingly absolute seeks relative in the file
long offset_in_file = io->tell_proc(handle);
// read the magic
io->read_proc(&magic, sizeof(magic), 1, handle);
// compare the magic with the number we know
// somebody put a comment here explaining the purpose of this loop
while (memcmp(&magic, "BA", 2) == 0) {
io->read_proc(&bitmapfileheader.bfSize, sizeof(DWORD), 1, handle);
io->read_proc(&bitmapfileheader.bfReserved1, sizeof(WORD), 1, handle);
io->read_proc(&bitmapfileheader.bfReserved2, sizeof(WORD), 1, handle);
io->read_proc(&bitmapfileheader.bfOffBits, sizeof(DWORD), 1, handle);
io->read_proc(&magic, sizeof(magic), 1, handle);
}
// read the fileheader
io->seek_proc(handle, 0 - sizeof(magic), SEEK_CUR);
io->read_proc(&bitmapfileheader, sizeof(BITMAPFILEHEADER), 1, handle);
#ifdef FREEIMAGE_BIGENDIAN
SwapFileHeader(&bitmapfileheader);
#endif
// read the first byte of the infoheader
io->read_proc(&type, sizeof(DWORD), 1, handle);
io->seek_proc(handle, 0 - sizeof(DWORD), SEEK_CUR);
#ifdef FREEIMAGE_BIGENDIAN
SwapLong(&type);
#endif
// call the appropriate load function for the found bitmap type
if (type == 40)
return LoadWindowsBMP(io, handle, flags, offset_in_file + bitmapfileheader.bfOffBits);
if (type == 12)
return LoadOS21XBMP(io, handle, flags, offset_in_file + bitmapfileheader.bfOffBits);
if (type <= 64)
return LoadOS22XBMP(io, handle, flags, offset_in_file + bitmapfileheader.bfOffBits);
FreeImage_OutputMessageProc(s_format_id, "unknown bmp subtype with id %d", type);
}
return NULL;
}
static void
SwapInfoHeader(BITMAPINFOHEADER *header) {
SwapLong(&header->biSize);
SwapLong((DWORD *)&header->biWidth);
SwapLong((DWORD *)&header->biHeight);
SwapShort(&header->biPlanes);
SwapShort(&header->biBitCount);
SwapLong(&header->biCompression);
SwapLong(&header->biSizeImage);
SwapLong((DWORD *)&header->biXPelsPerMeter);
SwapLong((DWORD *)&header->biYPelsPerMeter);
SwapLong(&header->biClrUsed);
SwapLong(&header->biClrImportant);
}
/********************************************************************
* ConvertUnsignedLongBuffer
********************************************************************/
void ConvertUnsignedLongBuffer(void * ptr, size_t length)
{
uint32_t * buffer = (uint32_t *)ptr;
uint32_t nbLongs = (uint32_t)(length / sizeof(uint32_t));
while (nbLongs-- > 0)
{
*buffer = SwapLong(*buffer);
buffer++;
}
}
static void
SwapExtensionArea(TGAEXTENSIONAREA *ex) {
SwapShort(&ex->extension_size);
SwapShort(&ex->datetime_stamp[0]);
SwapShort(&ex->datetime_stamp[1]);
SwapShort(&ex->datetime_stamp[2]);
SwapShort(&ex->datetime_stamp[3]);
SwapShort(&ex->datetime_stamp[4]);
SwapShort(&ex->datetime_stamp[5]);
SwapShort(&ex->job_time[0]);
SwapShort(&ex->job_time[1]);
SwapShort(&ex->job_time[2]);
SwapLong (&ex->key_color);
SwapShort(&ex->pixel_aspect_ratio[0]);
SwapShort(&ex->pixel_aspect_ratio[1]);
SwapShort(&ex->gamma_value[0]);
SwapShort(&ex->gamma_value[1]);
SwapLong (&ex->color_correction_offset);
SwapLong (&ex->postage_stamp_offset);
SwapLong (&ex->scan_line_offset);
}
long input_long_pci_config(int nHandle, long *p)
{
CARRIERDATA_STRUCT* pCarrier; /* local carrier */
unsigned long data[3];
pCarrier = GetCarrier(nHandle);
if(pCarrier == NULL)
return 0;
/* place address to read from in data[0]; */
data[0] = (unsigned long) p;
/* place device instance to read from @ data[1]; */
data[1] = (unsigned long) pCarrier->nDevInstance;
/* pram3 = function: 1=read8bits,2=read16bits,4=read32bits, 0x40=readconfig32bits */
read( pCarrier->nCarrierDeviceHandle, &data[0], 0x40 );
return( SwapLong( (long)data[1] ) );
}
void output_long_pci_config(int nHandle, long *p, long v)
{
CARRIERDATA_STRUCT* pCarrier; /* local carrier */
unsigned long data[3];
pCarrier = GetCarrier(nHandle);
if(pCarrier == NULL)
return;
/* place address to write data[0]; */
data[0] = (unsigned long) p;
/* place value to write @ address data[1]; */
data[1] = (unsigned long) SwapLong( v );
/* place device instance @ data[2]; */
data[2] = (unsigned long) pCarrier->nDevInstance;
/* pram3 = function: 1=write8bits,2=write16bits,4=write32bits, 0x40=writeconfig32bits */
write( pCarrier->nCarrierDeviceHandle, &data[0], 0x40 );
}
void output_long(int nHandle, long *p, long v)
{
CARRIERDATA_STRUCT* pCarrier; /* local carrier */
unsigned long data[2];
pCarrier = GetCarrier(nHandle);
if(pCarrier == NULL)
return;
if( p )
{
/* place address to write word in data [0]; */
data[0] = (unsigned long) p;
/* place value to write @ address data [1]; */
data[1] = (unsigned long) SwapLong( v );
/* pram3 = function: 1=write8bits,2=write16bits,4=write32bits */
write( pCarrier->nCarrierDeviceHandle, &data[0], 4 );
}
}
long input_long(int nHandle, long *p)
{
CARRIERDATA_STRUCT* pCarrier; /* local carrier */
unsigned long data[2];
pCarrier = GetCarrier(nHandle);
if(pCarrier == NULL)
return 0;
if( p )
{
/* place address to read word from in data [0]; */
data[0] = (unsigned long) p;
/* pram3 = function: 1=read8bits,2=read16bits,4=read32bits */
read( pCarrier->nCarrierDeviceHandle, &data[0], 4 );
return( SwapLong( (long)data[1] ) );
}
return((long)0);
}
//
// ACS_readOpACS0
//
static int32_t ACS_readOpACS0(acs0_tracer_t *tracer, uint32_t *opSize, uint32_t index)
{
int32_t op;
if(tracer->compressed)
{
*opSize = 1;
if((op = tracer->data[index]) >= 240)
{
++*opSize;
op = 240 + ((op - 240) << 8) + tracer->data[index + 1];
}
}
else
{
*opSize = 4;
op = SwapLong(*(int32_t *)(tracer->data + index));
}
return op;
}
////////////////////////////////////////////////////////////////////////////
//
// LoadLIBShape()
//
int LoadLIBShape(char *SLIB_Filename, char *Filename,struct Shape *SHP)
{
#define CHUNK(Name) (*ptr == *Name) && \
(*(ptr+1) == *(Name+1)) && \
(*(ptr+2) == *(Name+2)) && \
(*(ptr+3) == *(Name+3))
int RT_CODE;
FILE *fp;
char CHUNK[5];
char far *ptr;
memptr IFFfile = NULL;
unsigned long FileLen, size, ChunkLen;
int loop;
RT_CODE = 1;
// Decompress to ram and return ptr to data and return len of data in
// passed variable...
if (!LoadLIBFile(SLIB_Filename,Filename,&IFFfile))
Quit("Error Loading Compressed lib shape!");
// Evaluate the file
//
ptr = MK_FP(IFFfile,0);
if (!CHUNK("FORM"))
goto EXIT_FUNC;
ptr += 4;
FileLen = *(long far *)ptr;
SwapLong((long far *)&FileLen);
ptr += 4;
if (!CHUNK("ILBM"))
goto EXIT_FUNC;
ptr += 4;
FileLen += 4;
while (FileLen)
{
ChunkLen = *(long far *)(ptr+4);
SwapLong((long far *)&ChunkLen);
ChunkLen = (ChunkLen+1) & 0xFFFFFFFE;
if (CHUNK("BMHD"))
{
ptr += 8;
SHP->bmHdr.w = ((struct BitMapHeader far *)ptr)->w;
SHP->bmHdr.h = ((struct BitMapHeader far *)ptr)->h;
SHP->bmHdr.x = ((struct BitMapHeader far *)ptr)->x;
SHP->bmHdr.y = ((struct BitMapHeader far *)ptr)->y;
SHP->bmHdr.d = ((struct BitMapHeader far *)ptr)->d;
SHP->bmHdr.trans = ((struct BitMapHeader far *)ptr)->trans;
SHP->bmHdr.comp = ((struct BitMapHeader far *)ptr)->comp;
SHP->bmHdr.pad = ((struct BitMapHeader far *)ptr)->pad;
SwapWord(&SHP->bmHdr.w);
SwapWord(&SHP->bmHdr.h);
SwapWord(&SHP->bmHdr.x);
SwapWord(&SHP->bmHdr.y);
ptr += ChunkLen;
}
else
if (CHUNK("BODY"))
{
ptr += 4;
size = *((long far *)ptr);
ptr += 4;
SwapLong((long far *)&size);
SHP->BPR = (SHP->bmHdr.w+7) >> 3;
MM_GetPtr(&SHP->Data,size);
if (!SHP->Data)
goto EXIT_FUNC;
movedata(FP_SEG(ptr),FP_OFF(ptr),FP_SEG(SHP->Data),0,size);
ptr += ChunkLen;
break;
}
else
static void
SwapFooter(TGAFOOTER *footer) {
SwapLong(&footer->extension_offset);
SwapLong(&footer->developer_offset);
}
FIBITMAP* psdParser::ReadImageData(FreeImageIO *io, fi_handle handle) {
FIBITMAP *Bitmap = NULL;
if(handle != NULL) {
BYTE ShortValue[2];
int n = (int)io->read_proc(&ShortValue, sizeof(ShortValue), 1, handle);
short nCompression = (short)psdGetValue( ShortValue, sizeof(ShortValue) );
switch ( nCompression ) {
case PSD_COMPRESSION_NONE: // raw data
{
int nWidth = _headerInfo._Width;
int nHeight = _headerInfo._Height;
int bytes = _headerInfo._BitsPerPixel / 8;
int nPixels = nWidth * nHeight;
int nTotalBytes = nPixels * bytes * _headerInfo._Channels;
if(_headerInfo._BitsPerPixel == 1) {
// special case for PSD_BITMAP mode
bytes = 1;
nWidth = (nWidth + 7) / 8;
nWidth = ( nWidth > 0 ) ? nWidth : 1;
nPixels = nWidth * nHeight;
nTotalBytes = nWidth * nHeight;
}
BYTE * plData = 0;
BYTE * plPixel = 0;
int nBytes = 0;
switch (_headerInfo._ColourMode) {
case PSD_BITMAP:
{
plData = new BYTE [nTotalBytes];
plPixel = new BYTE [bytes];
while(nBytes < nTotalBytes) {
n = (int)io->read_proc(plPixel, bytes, 1, handle);
memcpy(plData+nBytes, plPixel, bytes );
nBytes += n * bytes;
}
SAFE_DELETE_ARRAY(plPixel);
}
break;
case PSD_INDEXED: // Indexed
{
assert( (-1 != _ColourCount) && (0 < _ColourCount) );
assert( NULL != _colourModeData._plColourData );
plData = new BYTE [nTotalBytes];
plPixel = new BYTE [bytes];
while(nBytes < nTotalBytes) {
n = (int)io->read_proc(plPixel, bytes, 1, handle);
memcpy(plData+nBytes, plPixel, bytes );
nBytes += n * bytes;
}
SAFE_DELETE_ARRAY(plPixel);
}
break;
case PSD_GRAYSCALE: // Grayscale
case PSD_DUOTONE: // Duotone
case PSD_RGB: // RGB
{
plData = new BYTE [nTotalBytes];
plPixel = new BYTE [bytes];
int nPixelCounter = 0;
int nChannels = _headerInfo._Channels;
for(int c = 0; c < nChannels; c++) {
nPixelCounter = c * bytes;
for(int nPos = 0; nPos < nPixels; ++nPos) {
n = (int)io->read_proc(plPixel, bytes, 1, handle);
if(n == 0) {
break;
}
if(2 == bytes) {
// swap for uint16
SwapShort((WORD*)&plPixel[0]);
} else if(4 == bytes) {
// swap for float
SwapLong((DWORD*)&plPixel[0]);
}
memcpy( plData + nPixelCounter, plPixel, bytes );
nBytes += n * bytes;
nPixelCounter += nChannels*bytes;
}
}
SAFE_DELETE_ARRAY(plPixel);
}
break;
case PSD_CMYK: // CMYK
case PSD_MULTICHANNEL: // Multichannel
{
plPixel = new BYTE[bytes];
plData = new BYTE[nTotalBytes];
int nPixelCounter = 0;
for (int c=0; c<_headerInfo._Channels; c++) {
nPixelCounter = c*bytes;
for ( int nPos = 0; nPos < nPixels; ++nPos ) {
n = (int)io->read_proc(plPixel, bytes, 1, handle);
if(n == 0) {
break;
}
memcpy(plData + nPixelCounter, plPixel, bytes );
nBytes += n * bytes;
nPixelCounter += _headerInfo._Channels*bytes;
}
}
SAFE_DELETE_ARRAY(plPixel);
}
break;
case PSD_LAB: // Lab
{
plPixel = new BYTE[bytes];
plData = new BYTE[nTotalBytes];
int nPixelCounter = 0;
for(int c = 0; c < 3; c++) {
nPixelCounter = c*bytes;
for ( int nPos = 0; nPos < nPixels; ++nPos ) {
n = (int)io->read_proc(plPixel, bytes, 1, handle);
if(n == 0) {
break;
}
memcpy(plData + nPixelCounter, plPixel, bytes);
nBytes += n * bytes;
nPixelCounter += 3*bytes;
}
}
SAFE_DELETE_ARRAY(plPixel);
}
break;
}
assert( nBytes == nTotalBytes );
if (nBytes == nTotalBytes) {
if (plData) {
switch (_headerInfo._BitsPerPixel) {
case 1:
case 8:
case 16:
case 32:
Bitmap = ProcessBuffer(plData);
break;
default: // Unsupported
break;
}
}
}
SAFE_DELETE_ARRAY(plData);
}
break;
case PSD_COMPRESSION_RLE: // RLE compression
{
int nWidth = _headerInfo._Width;
int nHeight = _headerInfo._Height;
int bytes = _headerInfo._BitsPerPixel / 8;
int nPixels = nWidth * nHeight;
int nTotalBytes = nPixels * bytes * _headerInfo._Channels;
if(_headerInfo._BitsPerPixel == 1) {
// special case for PSD_BITMAP mode
bytes = 1;
nWidth = (nWidth + 7) / 8;
nWidth = ( nWidth > 0 ) ? nWidth : 1;
nPixels = nWidth * nHeight;
nTotalBytes = nWidth * nHeight;
}
BYTE * plData = new BYTE[nTotalBytes];
BYTE * p = plData;
int nValue = 0;
BYTE ByteValue[1];
int Count = 0;
// The RLE-compressed data is preceeded by a 2-byte data count for each row in the data,
// which we're going to just skip.
io->seek_proc(handle, nHeight * _headerInfo._Channels * 2, SEEK_CUR);
for (int channel = 0; channel < _headerInfo._Channels; channel++) {
// Read the RLE data.
Count = 0;
while (Count < nPixels) {
io->read_proc(&ByteValue, sizeof(ByteValue), 1, handle);
int len = psdGetValue( ByteValue, sizeof(ByteValue) );
if ( 128 > len ) {
len++;
Count += len;
while (len) {
io->read_proc(&ByteValue, sizeof(ByteValue), 1, handle);
nValue = psdGetValue( ByteValue, sizeof(ByteValue) );
*p = (BYTE)nValue;
p += sizeof(ByteValue);
len--;
}
}
else if ( 128 < len ) {
// Next -len+1 bytes in the dest are replicated from next source byte.
// (Interpret len as a negative 8-bit int.)
len ^= 0x0FF;
len += 2;
io->read_proc(&ByteValue, sizeof(ByteValue), 1, handle);
nValue = psdGetValue( ByteValue, sizeof(ByteValue) );
Count += len;
while (len) {
*p = (BYTE)nValue;
p += sizeof(ByteValue);
len--;
}
}
else if ( 128 == len ) {
// Do nothing
}
}
}
BYTE * prSource = plData;
BYTE * plDest = new BYTE[nTotalBytes];
memset(plDest, 254, nTotalBytes);
int nPixelCounter = 0;
for(int c=0; c<_headerInfo._Channels; c++) {
nPixelCounter = c*bytes;
for (int nPos = 0; nPos<nPixels; ++nPos) {
memcpy( plDest + nPixelCounter, prSource, bytes );
prSource++;
nPixelCounter += _headerInfo._Channels*bytes;
}
}
SAFE_DELETE_ARRAY(plData);
if (plDest) {
switch (_headerInfo._BitsPerPixel) {
case 1:
case 8:
case 16:
Bitmap = ProcessBuffer(plDest);
break;
default: // Unsupported format
break;
}
}
SAFE_DELETE_ARRAY(plDest);
}
break;
case 2: // ZIP without prediction, no specification
break;
case 3: // ZIP with prediction, no specification
break;
default: // Unknown format
break;
}
}
return Bitmap;
}
//
// ACS_LoadScriptACS0
//
void ACS_LoadScriptACS0(ACSVM *vm, WadDirectory *dir, int lump, byte *data)
{
uint32_t lumpAvail; // Used in bounds checking.
uint32_t lumpLength = dir->lumpLength(lump);
int32_t *rover;
uint32_t tableIndex;
// Header + table index + script count + string count = 16 bytes.
if (lumpLength < 16) return;
lumpAvail = lumpLength - 16;
rover = (int32_t *)data + 1;
// Find script table.
tableIndex = SwapLong(*rover);
// Aha, but there might really be an ACSE header here!
if(tableIndex >= 8 && tableIndex <= lumpLength)
{
uint32_t fakeHeader = SwapULong(*(uint32_t *)(data + tableIndex - 4));
if(fakeHeader == ACS_CHUNKID('A', 'C', 'S', 'E'))
{
ACS_LoadScriptACSE(vm, dir, lump, data, tableIndex - 8);
return;
}
else if(fakeHeader == ACS_CHUNKID('A', 'C', 'S', 'e'))
{
ACS_LoadScriptACSe(vm, dir, lump, data, tableIndex - 8);
return;
}
}
// At the index there must be at least the script count and string count.
// Subtracting from lumpLength instead of adding to tableIndex in case the
// latter would cause an overflow.
if (tableIndex > lumpLength - 8) return;
rover = (int32_t *)(data + tableIndex);
// Read script count.
vm->numScripts = SwapLong(*rover++);
// Verify that there is enough space for the given number of scripts.
if (vm->numScripts * 12 > lumpAvail) return;
lumpAvail -= vm->numScripts * 12;
// Also verify that the string count will be inside the lump.
if (tableIndex + 8 > lumpLength - (vm->numScripts * 12)) return;
tableIndex += 8 + (vm->numScripts * 12);
// Read scripts.
vm->scripts = estructalloctag(ACSScript, vm->numScripts, PU_LEVEL);
for(ACSScript *itr = vm->scripts, *end = itr + vm->numScripts; itr != end; ++itr)
{
itr->number = SwapLong(*rover++);
itr->codeIndex = SwapLong(*rover++);
itr->numArgs = SwapLong(*rover++);
itr->numVars = ACS_NUM_LOCALVARS;
itr->vm = vm;
if(itr->number >= 1000)
{
itr->type = ACS_STYPE_OPEN;
itr->number -= 1000;
}
else
itr->type = ACS_STYPE_CLOSED;
}
// Read string count.
vm->numStrings = SwapLong(*rover++);
// Again, verify that there is enough space for the table first.
if (vm->numStrings * 4 > lumpAvail) return;
lumpAvail -= vm->numStrings * 4;
// This time, just verify the end of the table is in bounds.
if (tableIndex > lumpLength - (vm->numStrings * 4)) return;
// Read strings.
vm->strings = (uint32_t *)Z_Malloc(vm->numStrings * sizeof(uint32_t), PU_LEVEL, NULL);
for(uint32_t *itr = vm->strings, *end = itr + vm->numStrings; itr != end; ++itr)
{
tableIndex = SwapLong(*rover++);
if (tableIndex < lumpLength)
*itr = ACS_LoadStringACS0(data + tableIndex, data + lumpLength);
else
*itr = ACS_LoadStringACS0(data + lumpLength, data + lumpLength);
}
// The first part of the global string table must match VM-0 for compatibility.
if(vm->id == 0 && ACSVM::GlobalNumStrings < vm->numStrings)
vm->addStrings();
// Read code.
ACS_LoadScriptCodeACS0(vm, data, lumpLength, false);
vm->loaded = true;
}
//
// WadDirectory::addMemoryWad
//
// haleyjd 10/31/12: Add an id wadlink file stored in memory into the directory.
//
bool WadDirectory::addMemoryWad(openwad_t &openData, wfileadd_t &addInfo,
int startlump)
{
// haleyjd 04/07/11
wadinfo_t header;
ZAutoBuffer fileinfo2free; // killough
filelump_t *fileinfo;
size_t length;
size_t info_offset;
lumpinfo_t *lump_p;
// Read in the header
memcpy(&header, openData.base, sizeof(header));
header.numlumps = SwapLong(header.numlumps);
header.infotableofs = SwapLong(header.infotableofs);
// allocate enough fileinfo_t's to hold the wad directory
length = header.numlumps * sizeof(filelump_t);
fileinfo2free.alloc(length, true); // killough
fileinfo = fileinfo2free.getAs<filelump_t *>();
info_offset = static_cast<size_t>(header.infotableofs);
// seek to the directory
if(info_offset + header.numlumps * sizeof(filelump_t) > openData.size)
{
if(addInfo.flags & WFA_OPENFAILFATAL)
I_Error("Failed reading directory for in-memory file\n");
else
{
printf("Failed reading directory for in-memory file\n");
return false;
}
}
// read it in.
byte *directoryBase = static_cast<byte *>(openData.base) + info_offset;
memcpy(fileinfo, directoryBase, header.numlumps * sizeof(filelump_t));
// Add lumpinfo_t's for all lumps in the wad file
lump_p = reAllocLumpInfo(header.numlumps, startlump);
// Merge into the directory
for(int i = startlump; i < numlumps; i++, lump_p++, fileinfo++)
{
lump_p->type = lumpinfo_t::lump_memory; // haleyjd
lump_p->size = (size_t)(SwapLong(fileinfo->size));
lump_p->source = source; // haleyjd
// setup for memory IO
lump_p->memory.data = openData.base;
lump_p->memory.position = (size_t)(SwapLong(fileinfo->filepos));
lump_p->li_namespace = addInfo.li_namespace; // killough 4/17/98
strncpy(lump_p->name, fileinfo->name, 8);
}
incrementSource(openData);
return true;
}
/**
Write a FIBITMAP to a JNG stream
@param format_id ID of the caller
@param io Stream i/o functions
@param dib Image to be saved
@param handle Stream handle
@param flags Saving flags
@return Returns TRUE if successful, returns FALSE otherwise
*/
BOOL
mng_WriteJNG(int format_id, FreeImageIO *io, FIBITMAP *dib, fi_handle handle, int flags) {
DWORD jng_width = 0;
DWORD jng_height = 0;
BYTE jng_color_type = 0;
BYTE jng_image_sample_depth = 8;
BYTE jng_image_compression_method = 8; // 8: ISO-10918-1 Huffman-coded baseline JPEG.
BYTE jng_image_interlace_method = 0;
BYTE jng_alpha_sample_depth = 0;
BYTE jng_alpha_compression_method = 0;
BYTE jng_alpha_filter_method = 0;
BYTE jng_alpha_interlace_method = 0;
BYTE buffer[16];
FIMEMORY *hJngMemory = NULL;
FIMEMORY *hJpegMemory = NULL;
FIMEMORY *hPngMemory = NULL;
FIBITMAP *dib_rgb = NULL;
FIBITMAP *dib_alpha = NULL;
if(!dib || (FreeImage_GetImageType(dib) != FIT_BITMAP)) {
return FALSE;
}
unsigned bpp = FreeImage_GetBPP(dib);
switch(bpp) {
case 8:
if(FreeImage_GetColorType(dib) == FIC_MINISBLACK) {
dib_rgb = dib;
jng_color_type = MNG_COLORTYPE_JPEGGRAY;
} else {
// JPEG plugin will convert other types (FIC_MINISWHITE, FIC_PALETTE) to 24-bit on the fly
//dib_rgb = FreeImage_ConvertTo24Bits(dib);
dib_rgb = dib;
jng_color_type = MNG_COLORTYPE_JPEGCOLOR;
}
break;
case 24:
dib_rgb = dib;
jng_color_type = MNG_COLORTYPE_JPEGCOLOR;
break;
case 32:
dib_rgb = FreeImage_ConvertTo24Bits(dib);
jng_color_type = MNG_COLORTYPE_JPEGCOLORA;
jng_alpha_sample_depth = 8;
break;
default:
return FALSE;
}
jng_width = (DWORD)FreeImage_GetWidth(dib);
jng_height = (DWORD)FreeImage_GetHeight(dib);
try {
hJngMemory = FreeImage_OpenMemory();
// --- write JNG file signature ---
FreeImage_WriteMemory(g_jng_signature, 1, 8, hJngMemory);
// --- write a JHDR chunk ---
SwapLong(&jng_width);
SwapLong(&jng_height);
memcpy(&buffer[0], &jng_width, 4);
memcpy(&buffer[4], &jng_height, 4);
SwapLong(&jng_width);
SwapLong(&jng_height);
buffer[8] = jng_color_type;
buffer[9] = jng_image_sample_depth;
buffer[10] = jng_image_compression_method;
buffer[11] = jng_image_interlace_method;
buffer[12] = jng_alpha_sample_depth;
buffer[13] = jng_alpha_compression_method;
buffer[14] = jng_alpha_filter_method;
buffer[15] = jng_alpha_interlace_method;
mng_WriteChunk(mng_JHDR, &buffer[0], 16, hJngMemory);
// --- write a sequence of JDAT chunks ---
hJpegMemory = FreeImage_OpenMemory();
flags |= JPEG_BASELINE;
if(!FreeImage_SaveToMemory(FIF_JPEG, dib_rgb, hJpegMemory, flags)) {
throw (const char*)NULL;
}
if(dib_rgb != dib) {
FreeImage_Unload(dib_rgb);
dib_rgb = NULL;
}
{
BYTE *jpeg_data = NULL;
DWORD size_in_bytes = 0;
// get a pointer to the stream buffer
FreeImage_AcquireMemory(hJpegMemory, &jpeg_data, &size_in_bytes);
// write chunks
for(DWORD k = 0; k < size_in_bytes;) {
DWORD bytes_left = size_in_bytes - k;
DWORD chunk_size = MIN(JPEG_CHUNK_SIZE, bytes_left);
mng_WriteChunk(mng_JDAT, &jpeg_data[k], chunk_size, hJngMemory);
k += chunk_size;
}
}
FreeImage_CloseMemory(hJpegMemory);
hJpegMemory = NULL;
// --- write alpha layer as a sequence of IDAT chunk ---
if((bpp == 32) && (jng_color_type == MNG_COLORTYPE_JPEGCOLORA)) {
dib_alpha = FreeImage_GetChannel(dib, FICC_ALPHA);
hPngMemory = FreeImage_OpenMemory();
if(!FreeImage_SaveToMemory(FIF_PNG, dib_alpha, hPngMemory, PNG_DEFAULT)) {
throw (const char*)NULL;
}
FreeImage_Unload(dib_alpha);
dib_alpha = NULL;
// get the IDAT chunk
{
BOOL bResult = FALSE;
DWORD start_pos = 0;
DWORD next_pos = 0;
long offset = 8;
do {
// find the next IDAT chunk from 'offset' position
bResult = mng_FindChunk(hPngMemory, mng_IDAT, offset, &start_pos, &next_pos);
if(!bResult) break;
BYTE *png_data = NULL;
DWORD size_in_bytes = 0;
// get a pointer to the stream buffer
FreeImage_AcquireMemory(hPngMemory, &png_data, &size_in_bytes);
// write the IDAT chunk
mng_WriteChunk(mng_IDAT, &png_data[start_pos+8], next_pos - start_pos - 12, hJngMemory);
offset = next_pos;
} while(bResult);
}
FreeImage_CloseMemory(hPngMemory);
hPngMemory = NULL;
}
// --- write a IEND chunk ---
mng_WriteChunk(mng_IEND, NULL, 0, hJngMemory);
// write the JNG on output stream
{
BYTE *jng_data = NULL;
DWORD size_in_bytes = 0;
FreeImage_AcquireMemory(hJngMemory, &jng_data, &size_in_bytes);
io->write_proc(jng_data, 1, size_in_bytes, handle);
}
FreeImage_CloseMemory(hJngMemory);
FreeImage_CloseMemory(hJpegMemory);
FreeImage_CloseMemory(hPngMemory);
return TRUE;
} catch(const char *text) {
FreeImage_CloseMemory(hJngMemory);
FreeImage_CloseMemory(hJpegMemory);
FreeImage_CloseMemory(hPngMemory);
if(dib_rgb && (dib_rgb != dib)) {
FreeImage_Unload(dib_rgb);
}
FreeImage_Unload(dib_alpha);
if(text) {
FreeImage_OutputMessageProc(format_id, text);
}
return FALSE;
}
}
XGWindow *XGWindowFactory::CreateFromData(const unsigned char *data, XGForm *form)
{
XGSViewHeader h;
const unsigned char *nptr;
XGWindow *nwindow;
long i,len;
XGView *view;
XGSViewHeader *ptr;
/*
* Get and parse the header, initialize the data stream
*/
h = *((XGSViewHeader *)data);
#if OPT_NATIVEORDER != 1
h.type = SwapLong(h.type);
h.sibling = SwapLong(h.sibling);
h.children = SwapLong(h.children);
h.length = SwapLong(h.length);
#endif
ptr = (XGSViewHeader *)data;
XGArgStream stream((unsigned char *)&(ptr->type),h.length + sizeof(long));
/*
* Now create the window. If not found, this will alert the
* user and will create the generic 'window' instead.
*/
nwindow = NULL;
len = gList.Length();
for (i = 0; i < len; i++) {
if (h.type == gList[i].type) {
nwindow = (gList[i].proc)(stream, form);
break;
}
}
if (nwindow == NULL) {
Warning(KXGWindowFactoryError,h.type);
nwindow = new XGWindow(stream, form);
}
/*
* I have the window. This will only have one child, the view
* object which is to be contained in this window. Scan for
* the child object and construct.
*/
if (h.children) {
nptr = data + h.children;
for (;;) {
view = XGViewFactory::CreateFromData(nptr,nwindow);
h = *((XGSViewHeader *)nptr);
#if OPT_NATIVEORDER != 1
h.sibling = SwapLong(h.sibling);
#endif
if (!h.sibling) break;
nptr += h.sibling;
}
}
/*
* Done creating me and my children.
*/
return nwindow;
}
//
// ACS_traceScriptACS0
//
static void ACS_traceScriptACS0(acs0_tracer_t *tracer, uint32_t index)
{
uint32_t indexNext, opSize;
int32_t op;
acs0_opdata_t const *opdata;
for(;;)
{
// Read next instruction from file.
op = ACS_readOpACS0(tracer, &opSize, index);
// Invalid opcode terminates tracer.
if(op >= ACS0_OPMAX || op < 0)
{
// But flag it so that a KILL gets generated by the translator.
ACS_touchScriptACS0(tracer->codeTouched + index, tracer->codeTouched + index + opSize);
++tracer->vm->numCode;
return;
}
opdata = &ACS0opdata[op];
// Calculate next index.
indexNext = index + ACS_countOpSizeACS0(tracer, index, opSize, opdata);
// Leaving the bounds of the lump also terminates the tracer.
if(indexNext > tracer->lumpLength) return;
// If already touched this instruction, stop tracing.
if(ACS_touchScriptACS0(tracer->codeTouched + index, tracer->codeTouched + indexNext))
return;
// Determine how many internal codes this counts for.
switch(op)
{
case ACS0_OP_LINESPEC1_IMM:
case ACS0_OP_LINESPEC2_IMM:
case ACS0_OP_LINESPEC3_IMM:
case ACS0_OP_LINESPEC4_IMM:
case ACS0_OP_LINESPEC5_IMM:
case ACS0_OP_LINESPEC1_IMM_BYTE:
case ACS0_OP_LINESPEC2_IMM_BYTE:
case ACS0_OP_LINESPEC3_IMM_BYTE:
case ACS0_OP_LINESPEC4_IMM_BYTE:
case ACS0_OP_LINESPEC5_IMM_BYTE:
case ACS0_OP_GET2_IMM_BYTE:
case ACS0_OP_GET3_IMM_BYTE:
case ACS0_OP_GET4_IMM_BYTE:
case ACS0_OP_GET5_IMM_BYTE:
tracer->vm->numCode += opdata->args + 2;
break;
case ACS0_OP_GETARR_IMM_BYTE:
tracer->vm->numCode += *(tracer->data + index + opSize) + 2;
break;
case ACS0_OP_ACTIVATORHEALTH:
case ACS0_OP_ACTIVATORARMOR:
case ACS0_OP_ACTIVATORFRAGS:
case ACS0_OP_BRANCH_RETURNVOID:
case ACS0_OP_PLAYERNUMBER:
case ACS0_OP_ACTIVATORTID:
case ACS0_OP_SIGILPIECES:
tracer->vm->numCode += opdata->opdata->args + 1 + 2; // GET_IMM 0
break;
case ACS0_OP_GAMETYPE_ONEFLAGCTF:
tracer->vm->numCode += 2; // GET_IMM
break;
case ACS0_OP_GAMETYPE_SINGLEPLAYER:
tracer->vm->numCode += 4; // GAMETYPE + GET_IMM + CMP_EQ
break;
case ACS0_OP_BRANCH_CALLDISCARD:
tracer->vm->numCode += opdata->opdata->args + 1 + 1; // DROP
break;
case ACS0_OP_BRANCH_CASETABLE:
tracer->vm->numCode += 2;
// More alignment stuff. (Wow, that's a mouthfull.)
tracer->vm->numCode += SwapULong(*(uint32_t *)(((uintptr_t)tracer->data + index + opSize + 3) & ~3)) * 2;
break;
case ACS0_OP_CALLFUNC:
if(tracer->compressed)
{
uint8_t argc = tracer->data[index + opSize];
uint16_t func = SwapUShort(*(uint16_t *)(tracer->data + index + opSize + 1));
tracer->vm->numCode += ACS_traceFuncACS0(func, argc);
}
else
{
uint32_t argc = SwapULong(*(uint32_t *)(tracer->data + index + opSize + 0));
uint32_t func = SwapULong(*(uint32_t *)(tracer->data + index + opSize + 4));
tracer->vm->numCode += ACS_traceFuncACS0(func, argc);
}
break;
default:
// Translation to CALLFUNC.
if(opdata->opdata->op == ACS_OP_CALLFUNC_IMM)
{
// Adds the func and argc arguments.
tracer->vm->numCode += opdata->args + 1 + 2;
break;
}
// Direct translation.
#ifdef RANGECHECK
// This should never happen.
if(opdata->opdata->args == -1)
I_Error("Unknown translation for opcode. opcode %i", (int)op);
#endif
tracer->vm->numCode += opdata->opdata->args + 1;
break;
}
// Advance the index past the instruction.
switch(op)
{
case ACS0_OP_SCRIPT_TERMINATE:
case ACS0_OP_BRANCH_RETURN:
case ACS0_OP_BRANCH_RETURNVOID:
return;
case ACS0_OP_BRANCH_IMM:
++tracer->jumpCount;
index = SwapLong(*(int32_t *)(tracer->data + index + opSize));
continue;
case ACS0_OP_BRANCH_NOTZERO:
case ACS0_OP_BRANCH_ZERO:
++tracer->jumpCount;
ACS_traceScriptACS0(tracer, SwapLong(*(int32_t *)(tracer->data + index + opSize)));
break;
case ACS0_OP_BRANCH_CASE:
++tracer->jumpCount;
ACS_traceScriptACS0(tracer, SwapLong(*(int32_t *)(tracer->data + index + opSize + 4)));
break;
case ACS0_OP_BRANCH_CASETABLE:
{
uint32_t jumps, *rover;
rover = (uint32_t *)(tracer->data + index + opSize);
// And alignment again.
rover = (uint32_t *)(((uintptr_t)rover + 3) & ~3);
jumps = SwapULong(*rover++);
tracer->jumpCount += jumps;
// Trace all of the jump targets.
// Start by incrementing rover to point to address.
for(++rover; jumps--; rover += 2)
ACS_traceScriptACS0(tracer, SwapULong(*rover));
}
break;
}
index = indexNext;
}
}
XGView *XGViewFactory::CreateFromData(const unsigned char *data, XGView *parent)
{
XGSViewHeader h;
XGSViewHeader *ptr;
const unsigned char *nptr;
XGView *nview;
long i,len;
/*
* Get and parse the header, initialize the data stream
*/
h = *((XGSViewHeader *)data);
#if OPT_NATIVEORDER != 1
h.type = SwapLong(h.type);
h.sibling = SwapLong(h.sibling);
h.children = SwapLong(h.children);
h.length = SwapLong(h.length);
#endif
ptr = (XGSViewHeader *)data;
XGArgStream stream((unsigned char *)&(ptr->type),h.length + sizeof(long));
/*
* Now create the view. If not found, this will alert the
* user and will create the generic 'view' instead.
*/
nview = NULL;
len = gList.Length();
for (i = 0; i < len; i++) {
if (h.type == gList[i].type) {
nview = (gList[i].proc)(parent,stream);
break;
}
}
if (nview == NULL) {
Warning(KXGViewFactoryError,h.type);
nview = new XGView(parent,stream);
}
/*
* I have the view. Start looking for the children of this
* thing. (The default view constructor will add the child
* view to the specified parent view, so nothing needs to be
* done here.)
*/
if (h.children) {
nptr = data + h.children;
for (;;) {
CreateFromData(nptr,nview);
h = *((XGSViewHeader *)nptr);
#if OPT_NATIVEORDER != 1
h.sibling = SwapLong(h.sibling);
#endif
if (!h.sibling) break;
nptr += h.sibling;
}
}
/*
* Done creating me and my children. Return
*/
return nview;
}
//
// WadDirectory::addWadFile
//
// haleyjd 10/28/12: Add an id wadlink file into the directory.
//
bool WadDirectory::addWadFile(openwad_t &openData, wfileadd_t &addInfo,
int startlump)
{
// haleyjd 04/07/11
//HashData wadHash = HashData(HashData::SHA1);
bool showHash = false;
bool doHacks = (addInfo.flags & WFA_ALLOWHACKS) == WFA_ALLOWHACKS;
long baseoffset = static_cast<long>(addInfo.baseoffset);
wadinfo_t header;
ZAutoBuffer fileinfo2free; // killough
filelump_t *fileinfo;
size_t length;
long info_offset;
lumpinfo_t *lump_p;
// check for in-memory wads
if(addInfo.flags & WFA_INMEMORY)
return addMemoryWad(openData, addInfo, startlump);
// haleyjd: seek to baseoffset first when loading a subfile
if(addInfo.flags & WFA_SUBFILE)
fseek(openData.handle, baseoffset, SEEK_SET);
// -nowadhacks disables all wad directory hacks, in case of unforeseen
// compatibility problems that would last until the next release
if(M_CheckParm("-nowadhacks"))
doHacks = false;
// -showhashes enables display of the computed SHA-1 hash used to apply
// wad directory hacks. Quite useful for when a new hack needs to be added.
if(M_CheckParm("-showhashes"))
showHash = true;
if(fread(&header, sizeof(header), 1, openData.handle) < 1)
{
if(addInfo.flags & WFA_OPENFAILFATAL)
I_Error("Failed reading header for wad file %s\n", openData.filename);
else
{
fclose(openData.handle);
printf("Failed reading header for wad file %s\n", openData.filename);
return false;
}
}
// Feed the wad header data into the hash computation
//if(doHacks || showHash)
// wadHash.addData((const uint8_t *)&header, (uint32_t)sizeof(header));
header.numlumps = SwapLong(header.numlumps);
header.infotableofs = SwapLong(header.infotableofs);
// allocate enough fileinfo_t's to hold the wad directory
length = header.numlumps * sizeof(filelump_t);
fileinfo2free.alloc(length, true); // killough
fileinfo = fileinfo2free.getAs<filelump_t *>();
info_offset = static_cast<long>(header.infotableofs);
// subfile wads may exist at a positive base offset in the container file
if(addInfo.flags & WFA_SUBFILE)
info_offset += baseoffset;
// seek to the directory
fseek(openData.handle, info_offset, SEEK_SET);
// read it in.
if(fread(fileinfo, length, 1, openData.handle) < 1)
{
if(addInfo.flags & WFA_OPENFAILFATAL)
I_Error("Failed reading directory for wad file %s\n", openData.filename);
else
{
fclose(openData.handle);
printf("Failed reading directory for wad file %s\n", openData.filename);
return false;
}
}
// Feed the wad directory into the hash computation, wrap it up, and if requested,
// output it to the console.
#if 0
if(doHacks || showHash)
{
wadHash.addData((const uint8_t *)fileinfo, (uint32_t)length);
wadHash.wrapUp();
if(in_textmode && showHash)
printf("\thash = %s\n", wadHash.digestToString());
// haleyjd 04/08/11: apply wad directory hacks as needed
if(doHacks)
W_CheckDirectoryHacks(wadHash, fileinfo, header.numlumps);
}
#endif
// update IWAD handle?
// haleyjd: Must be a public wad file.
if(!(addInfo.flags & WFA_PRIVATE) && this->ispublic)
{
// haleyjd 06/21/04: track handle of first wad added also
if(ResWADSource == -1)
ResWADSource = source;
// haleyjd 07/13/09: only track the first IWAD found
// haleyjd 11/03/12: Status as the IWAD is now determined by how the file
// was added to the game (ie., -iwad or -disk, vs. -file, autoloads, etc.)
if(IWADSource < 0 && (addInfo.flags & WFA_ISIWADFILE))
IWADSource = source;
}
// Add lumpinfo_t's for all lumps in the wad file
lump_p = reAllocLumpInfo(header.numlumps, startlump);
// Merge into the directory
for(int i = startlump; i < this->numlumps; i++, lump_p++, fileinfo++)
{
strncpy(lump_p->name, fileinfo->name, 8);
if(lump_p->name[0] & 0x80) // For psxwadgen, detect compressed lumps
{
lump_p->name[0] &= 0x7f;
lump_p->type = lumpinfo_t::lump_direct_jag;
}
else
lump_p->type = lumpinfo_t::lump_direct; // haleyjd
lump_p->size = (size_t)(SwapLong(fileinfo->size));
lump_p->source = source; // haleyjd
// setup for direct IO
lump_p->direct.file = openData.handle;
lump_p->direct.position = (size_t)(SwapLong(fileinfo->filepos));
// for subfiles, add baseoffset to the lump offset
if(addInfo.flags & WFA_SUBFILE)
lump_p->direct.position += static_cast<size_t>(baseoffset);
lump_p->li_namespace = addInfo.li_namespace; // killough 4/17/98
}
#if 0
if(ispublic)
D_NewWadLumps(source);
#endif
incrementSource(openData);
return true;
}
inline void
mng_SwapLong(DWORD *lp) {
#ifndef FREEIMAGE_BIGENDIAN
SwapLong(lp);
#endif
}
static FIBITMAP * DLL_CALLCONV
Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
SUNHEADER header; // Sun file header
WORD linelength; // Length of raster line in bytes
WORD fill; // Number of fill bytes per raster line
BOOL rle; // TRUE if RLE file
BOOL isRGB; // TRUE if file type is RT_FORMAT_RGB
BYTE fillchar;
FIBITMAP *dib = NULL;
BYTE *bits; // Pointer to dib data
WORD x, y;
if(!handle) {
return NULL;
}
BOOL header_only = (flags & FIF_LOAD_NOPIXELS) == FIF_LOAD_NOPIXELS;
try {
// Read SUN raster header
io->read_proc(&header, sizeof(SUNHEADER), 1, handle);
#ifndef FREEIMAGE_BIGENDIAN
// SUN rasterfiles are big endian only
SwapLong(&header.magic);
SwapLong(&header.width);
SwapLong(&header.height);
SwapLong(&header.depth);
SwapLong(&header.length);
SwapLong(&header.type);
SwapLong(&header.maptype);
SwapLong(&header.maplength);
#endif
// Verify SUN identifier
if (header.magic != RAS_MAGIC) {
throw FI_MSG_ERROR_MAGIC_NUMBER;
}
// Allocate a new DIB
switch(header.depth) {
case 1:
case 8:
dib = FreeImage_AllocateHeader(header_only, header.width, header.height, header.depth);
break;
case 24:
dib = FreeImage_AllocateHeader(header_only, header.width, header.height, header.depth, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
break;
case 32:
dib = FreeImage_AllocateHeader(header_only, header.width, header.height, header.depth, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
break;
}
if (dib == NULL) {
throw FI_MSG_ERROR_DIB_MEMORY;
}
// Check the file format
rle = FALSE;
isRGB = FALSE;
switch(header.type) {
case RT_OLD:
case RT_STANDARD:
case RT_FORMAT_TIFF: // I don't even know what these format are...
case RT_FORMAT_IFF: //The TIFF and IFF format types indicate that the raster
//file was originally converted from either of these file formats.
//so lets at least try to process them as RT_STANDARD
break;
case RT_BYTE_ENCODED:
rle = TRUE;
break;
case RT_FORMAT_RGB:
isRGB = TRUE;
break;
default:
throw FI_MSG_ERROR_UNSUPPORTED_FORMAT;
}
// set up the colormap if needed
switch(header.maptype) {
case RMT_NONE :
{
if (header.depth < 24) {
// Create linear color ramp
RGBQUAD *pal = FreeImage_GetPalette(dib);
int numcolors = 1 << header.depth;
for (int i = 0; i < numcolors; i++) {
pal[i].rgbRed = (BYTE)((255 * i) / (numcolors - 1));
pal[i].rgbGreen = (BYTE)((255 * i) / (numcolors - 1));
pal[i].rgbBlue = (BYTE)((255 * i) / (numcolors - 1));
}
}
break;
}
case RMT_EQUAL_RGB:
{
BYTE *r, *g, *b;
// Read SUN raster colormap
int numcolors = 1 << header.depth;
if((DWORD)(3 * numcolors) > header.maplength) {
// some RAS may have less colors than the full palette
numcolors = header.maplength / 3;
} else {
throw "Invalid palette";
}
r = (BYTE*)malloc(3 * numcolors * sizeof(BYTE));
g = r + numcolors;
b = g + numcolors;
RGBQUAD *pal = FreeImage_GetPalette(dib);
io->read_proc(r, 3 * numcolors, 1, handle);
for (int i = 0; i < numcolors; i++) {
pal[i].rgbRed = r[i];
pal[i].rgbGreen = g[i];
pal[i].rgbBlue = b[i];
}
free(r);
break;
}
case RMT_RAW:
{
BYTE *colormap;
// Read (skip) SUN raster colormap.
colormap = (BYTE *)malloc(header.maplength * sizeof(BYTE));
io->read_proc(colormap, header.maplength, 1, handle);
free(colormap);
break;
}
}
if(header_only) {
// header only mode
return dib;
}
// Calculate the line + pitch
// Each row is multiple of 16 bits (2 bytes).
if (header.depth == 1) {
linelength = (WORD)((header.width / 8) + (header.width % 8 ? 1 : 0));
} else {
linelength = (WORD)header.width;
}
fill = (linelength % 2) ? 1 : 0;
unsigned pitch = FreeImage_GetPitch(dib);
// Read the image data
switch(header.depth) {
case 1:
case 8:
{
bits = FreeImage_GetBits(dib) + (header.height - 1) * pitch;
for (y = 0; y < header.height; y++) {
ReadData(io, handle, bits, linelength, rle);
bits -= pitch;
if (fill) {
ReadData(io, handle, &fillchar, fill, rle);
}
}
break;
}
case 24:
{
BYTE *buf, *bp;
buf = (BYTE*)malloc(header.width * 3);
for (y = 0; y < header.height; y++) {
bits = FreeImage_GetBits(dib) + (header.height - 1 - y) * pitch;
ReadData(io, handle, buf, header.width * 3, rle);
bp = buf;
if (isRGB) {
for (x = 0; x < header.width; x++) {
bits[FI_RGBA_RED] = *(bp++); // red
bits[FI_RGBA_GREEN] = *(bp++); // green
bits[FI_RGBA_BLUE] = *(bp++); // blue
bits += 3;
}
} else {
for (x = 0; x < header.width; x++) {
bits[FI_RGBA_RED] = *(bp + 2); // red
bits[FI_RGBA_GREEN] = *(bp + 1);// green
bits[FI_RGBA_BLUE] = *bp; // blue
bits += 3; bp += 3;
}
}
if (fill) {
ReadData(io, handle, &fillchar, fill, rle);
}
}
free(buf);
break;
}
case 32:
{
BYTE *buf, *bp;
buf = (BYTE*)malloc(header.width * 4);
for (y = 0; y < header.height; y++) {
bits = FreeImage_GetBits(dib) + (header.height - 1 - y) * pitch;
ReadData(io, handle, buf, header.width * 4, rle);
bp = buf;
if (isRGB) {
for (x = 0; x < header.width; x++) {
bits[FI_RGBA_ALPHA] = *(bp++); // alpha
bits[FI_RGBA_RED] = *(bp++); // red
bits[FI_RGBA_GREEN] = *(bp++); // green
bits[FI_RGBA_BLUE] = *(bp++); // blue
bits += 4;
}
}
else {
for (x = 0; x < header.width; x++) {
bits[FI_RGBA_RED] = *(bp + 3); // red
bits[FI_RGBA_GREEN] = *(bp + 2); // green
bits[FI_RGBA_BLUE] = *(bp + 1); // blue
bits[FI_RGBA_ALPHA] = *bp; // alpha
bits += 4;
bp += 4;
}
}
if (fill) {
ReadData(io, handle, &fillchar, fill, rle);
}
}
free(buf);
break;
}
}
return dib;
} catch (const char *text) {
if(dib) {
FreeImage_Unload(dib);
}
FreeImage_OutputMessageProc(s_format_id, text);
}
return NULL;
}
//
// ACS_translateScriptACS0
//
static void ACS_translateScriptACS0(acs0_tracer_t *tracer, int32_t *codeIndexMap)
{
byte *brover;
int32_t *codePtr = tracer->vm->code, *rover;
uint32_t index, opSize;
int32_t op, temp;
acs0_opdata_t const *opdata;
int32_t **jumps, **jumpItr;
// This is used to store all of the places that need to have a jump target
// translated. The count was determined by the tracer.
jumps = (int32_t **)Z_Malloc(tracer->jumpCount * sizeof(int32_t *), PU_STATIC, NULL);
jumpItr = jumps;
// Set the first instruction to a KILL.
*codePtr++ = ACS_OP_KILL;
for(index = 0; index < tracer->lumpLength;)
{
// Search for code.
if(!tracer->codeTouched[index])
{
++index;
continue;
}
// Read next instruction from file.
op = ACS_readOpACS0(tracer, &opSize, index);
rover = (int32_t *)(tracer->data + index + opSize);
// Unrecognized instructions need to stop execution.
if(op >= ACS0_OPMAX || op < 0)
{
*codePtr++ = ACS_OP_KILL;
index += opSize;
continue;
}
opdata = &ACS0opdata[op];
// Record jump target.
codeIndexMap[index] = codePtr - tracer->vm->code;
// Calculate next index.
index += ACS_countOpSizeACS0(tracer, index, opSize, opdata);
switch(op)
{
case ACS0_OP_LINESPEC1:
case ACS0_OP_LINESPEC2:
case ACS0_OP_LINESPEC3:
case ACS0_OP_LINESPEC4:
case ACS0_OP_LINESPEC5:
temp = op - ACS0_OP_LINESPEC1 + 1;
*codePtr++ = opdata->opdata->op;
*codePtr++ = SwapLong(*rover++);
*codePtr++ = temp;
break;
case ACS0_OP_LINESPEC1_IMM:
case ACS0_OP_LINESPEC2_IMM:
case ACS0_OP_LINESPEC3_IMM:
case ACS0_OP_LINESPEC4_IMM:
case ACS0_OP_LINESPEC5_IMM:
temp = opdata->args - 1;
*codePtr++ = opdata->opdata->op;
*codePtr++ = SwapLong(*rover++);
*codePtr++ = temp;
while(temp--)
*codePtr++ = SwapLong(*rover++);
break;
case ACS0_OP_LINESPEC5_RET:
temp = op - ACS0_OP_LINESPEC5_RET + 5;
*codePtr++ = opdata->opdata->op;
*codePtr++ = SwapLong(*rover++);
*codePtr++ = temp;
break;
case ACS0_OP_LINESPEC1_IMM_BYTE:
case ACS0_OP_LINESPEC2_IMM_BYTE:
case ACS0_OP_LINESPEC3_IMM_BYTE:
case ACS0_OP_LINESPEC4_IMM_BYTE:
case ACS0_OP_LINESPEC5_IMM_BYTE:
brover = (byte *)rover;
temp = opdata->args - 1;
*codePtr++ = opdata->opdata->op;
*codePtr++ = *brover++;
*codePtr++ = temp;
while(temp--)
*codePtr++ = *brover++;
break;
case ACS0_OP_GET_IMM_BYTE:
*codePtr++ = opdata->opdata->op;
*codePtr++ = *(byte *)rover;
break;
case ACS0_OP_GET2_IMM_BYTE:
case ACS0_OP_GET3_IMM_BYTE:
case ACS0_OP_GET4_IMM_BYTE:
case ACS0_OP_GET5_IMM_BYTE:
brover = (byte *)rover;
temp = op - ACS0_OP_GET2_IMM_BYTE + 2;
*codePtr++ = opdata->opdata->op;
*codePtr++ = temp;
while(temp--)
*codePtr++ = *brover++;
break;
case ACS0_OP_GET_THINGX:
case ACS0_OP_GET_THINGY:
case ACS0_OP_GET_THINGZ:
case ACS0_OP_GET_THINGFLOORZ:
case ACS0_OP_GET_THINGANGLE:
case ACS0_OP_SET_THINGANGLE:
case ACS0_OP_GET_THINGCEILINGZ:
case ACS0_OP_GET_THINGPITCH:
case ACS0_OP_SET_THINGPITCH:
case ACS0_OP_CHK_THINGCEILINGTEXTURE:
case ACS0_OP_CHK_THINGFLOORTEXTURE:
case ACS0_OP_GET_THINGLIGHTLEVEL:
*codePtr++ = opdata->opdata->op;
*codePtr++ = ACS_translateThingVarACS0(opdata);
break;
case ACS0_OP_GETARR_IMM_BYTE:
brover = (byte *)rover;
temp = *brover++;
*codePtr++ = opdata->opdata->op;
*codePtr++ = temp;
while(temp--)
*codePtr++ = *brover++;
break;
case ACS0_OP_BRANCH_IMM:
case ACS0_OP_BRANCH_NOTZERO:
case ACS0_OP_BRANCH_ZERO:
*jumpItr++ = codePtr + 1;
goto case_direct;
case ACS0_OP_BRANCH_CASE:
*jumpItr++ = codePtr + 2;
goto case_direct;
case ACS0_OP_CHANGEFLOOR_IMM:
case ACS0_OP_CHANGECEILING_IMM:
ACS_translateFuncACS0(codePtr, opdata);
*codePtr++ = SwapLong(*rover++);
*codePtr++ = tracer->vm->getStringIndex(SwapLong(*rover++)); // tag string
for(int i = opdata->args - 2; i--;)
*codePtr++ = SwapLong(*rover++);
break;
case ACS0_OP_DELAY_IMM_BYTE:
brover = (byte *)rover;
*codePtr++ = opdata->opdata->op;
for(int i = opdata->args; i--;)
*codePtr++ = *brover++;
break;
case ACS0_OP_ACTIVATORHEALTH:
case ACS0_OP_ACTIVATORARMOR:
case ACS0_OP_ACTIVATORFRAGS:
case ACS0_OP_PLAYERNUMBER:
case ACS0_OP_ACTIVATORTID:
*codePtr++ = ACS_OP_GET_IMM;
*codePtr++ = 0;
*codePtr++ = opdata->opdata->op;
*codePtr++ = ACS_translateThingVarACS0(opdata);
break;
case ACS0_OP_GAMETYPE_ONEFLAGCTF:
*codePtr++ = ACS_OP_GET_IMM;
*codePtr++ = 0;
break;
case ACS0_OP_GAMETYPE_SINGLEPLAYER:
*codePtr++ = opdata->opdata->op;
*codePtr++ = ACS_OP_GET_IMM;
*codePtr++ = gt_single;
*codePtr++ = ACS_OP_CMP_EQ;
break;
case ACS0_OP_RANDOM_IMM_BYTE:
brover = (byte *)rover;
ACS_translateFuncACS0(codePtr, opdata);
for(int i = opdata->args; i--;)
*codePtr++ = *brover++;
break;
case ACS0_OP_SETMUSIC_IMM:
case ACS0_OP_SETMUSICLOCAL_IMM:
case ACS0_OP_SPAWNPOINT_IMM:
case ACS0_OP_SPAWNSPOT_IMM:
ACS_translateFuncACS0(codePtr, opdata);
*codePtr++ = tracer->vm->getStringIndex(SwapLong(*rover++)); // tag string
for(int i = opdata->args - 1; i--;)
*codePtr++ = SwapLong(*rover++);
break;
case ACS0_OP_BRANCH_CALLDISCARD:
*codePtr++ = opdata->opdata->op;
if(tracer->compressed)
*codePtr++ = *(byte *)rover;
else
*codePtr++ = SwapLong(*rover);
*codePtr++ = ACS_OP_STACK_DROP;
break;
case ACS0_OP_BRANCH_RETURNVOID:
*codePtr++ = ACS_OP_GET_IMM;
*codePtr++ = 0;
*codePtr++ = opdata->opdata->op;
break;
case ACS0_OP_BRANCH_CASETABLE:
// Align rover.
rover = (int32_t *)(((uintptr_t)rover + 3) & ~3);
temp = SwapLong(*rover++);
*codePtr++ = opdata->opdata->op;
*codePtr++ = temp;
while(temp--)
{
*codePtr++ = SwapLong(*rover++);
*jumpItr++ = codePtr;
*codePtr++ = SwapLong(*rover++);
}
break;
case ACS0_OP_CALLFUNC:
if(tracer->compressed)
{
brover = (uint8_t *)rover;
uint8_t argc = *brover++;
uint16_t func = SwapUShort(*(uint16_t *)brover);
ACS_translateFuncACS0(codePtr, func, argc);
}
else
ACS_translateFuncACS0(codePtr, SwapLong(rover[1]), SwapLong(rover[0]));
break;
default: case_direct:
// Direct translation.
if(opdata->opdata->op == ACS_OP_CALLFUNC ||
opdata->opdata->op == ACS_OP_CALLFUNC_IMM)
{
ACS_translateFuncACS0(codePtr, opdata);
}
else
*codePtr++ = opdata->opdata->op;
if(tracer->compressed && opdata->compressed)
{
brover = (byte *)rover;
for(int i = opdata->args; i--;)
*codePtr++ = *brover++;
}
else
{
for(int i = opdata->args; i--;)
*codePtr++ = SwapLong(*rover++);
}
break;
}
}
// Set the last instruction to a KILL.
*codePtr++ = ACS_OP_KILL;
#ifdef RANGECHECK
// If this isn't true, something very wrong has happened internally.
if(codePtr != tracer->vm->code + tracer->vm->numCode)
{
I_Error("Incorrect code count. %i/%i/%i", (int)(codePtr - tracer->vm->code),
(int)tracer->vm->numCode, (int)(tracer->lumpLength / 4));
}
// Same here, this is just a sanity check.
if(jumpItr != jumps + tracer->jumpCount)
{
I_Error("Incorrect jump count. %i/%i", (int)(jumpItr - jumps),
(int)tracer->jumpCount);
}
#endif
// Translate jumps. Has to be done after code in order to jump forward.
while(jumpItr != jumps)
{
codePtr = *--jumpItr;
if ((uint32_t)*codePtr < tracer->lumpLength)
*codePtr = codeIndexMap[*codePtr];
else
*codePtr = 0;
}
}
