mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-11-14 16:41:07 +00:00
622 lines
14 KiB
C++
622 lines
14 KiB
C++
/*
|
|
** pcxtexture.cpp
|
|
** Texture class for PCX images
|
|
**
|
|
**---------------------------------------------------------------------------
|
|
** Copyright 2005 David HENRY
|
|
** Copyright 2006 Christoph Oelckers
|
|
** All rights reserved.
|
|
**
|
|
** Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions
|
|
** are met:
|
|
**
|
|
** 1. Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** 2. Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in the
|
|
** documentation and/or other materials provided with the distribution.
|
|
** 3. The name of the author may not be used to endorse or promote products
|
|
** derived from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
**---------------------------------------------------------------------------
|
|
**
|
|
**
|
|
*/
|
|
|
|
#include "doomtype.h"
|
|
#include "files.h"
|
|
#include "w_wad.h"
|
|
#include "templates.h"
|
|
#include "bitmap.h"
|
|
#include "colormatcher.h"
|
|
#include "v_video.h"
|
|
#include "textures/textures.h"
|
|
|
|
//==========================================================================
|
|
//
|
|
// PCX file header
|
|
//
|
|
//==========================================================================
|
|
|
|
#pragma pack(1)
|
|
|
|
struct PCXHeader
|
|
{
|
|
BYTE manufacturer;
|
|
BYTE version;
|
|
BYTE encoding;
|
|
BYTE bitsPerPixel;
|
|
|
|
WORD xmin, ymin;
|
|
WORD xmax, ymax;
|
|
WORD horzRes, vertRes;
|
|
|
|
BYTE palette[48];
|
|
BYTE reserved;
|
|
BYTE numColorPlanes;
|
|
|
|
WORD bytesPerScanLine;
|
|
WORD paletteType;
|
|
WORD horzSize, vertSize;
|
|
|
|
BYTE padding[54];
|
|
|
|
} FORCE_PACKED;
|
|
#pragma pack()
|
|
|
|
//==========================================================================
|
|
//
|
|
// a PCX texture
|
|
//
|
|
//==========================================================================
|
|
|
|
class FPCXTexture : public FTexture
|
|
{
|
|
public:
|
|
FPCXTexture (int lumpnum, PCXHeader &);
|
|
~FPCXTexture ();
|
|
|
|
const BYTE *GetColumn (unsigned int column, const Span **spans_out);
|
|
const BYTE *GetPixels ();
|
|
void Unload ();
|
|
FTextureFormat GetFormat ();
|
|
|
|
int CopyTrueColorPixels(FBitmap *bmp, int x, int y, int rotate, FCopyInfo *inf = NULL);
|
|
bool UseBasePalette();
|
|
|
|
protected:
|
|
BYTE *Pixels;
|
|
Span DummySpans[2];
|
|
|
|
void ReadPCX1bit (BYTE *dst, FileReader & lump, PCXHeader *hdr);
|
|
void ReadPCX4bits (BYTE *dst, FileReader & lump, PCXHeader *hdr);
|
|
void ReadPCX8bits (BYTE *dst, FileReader & lump, PCXHeader *hdr);
|
|
void ReadPCX24bits (BYTE *dst, FileReader & lump, PCXHeader *hdr, int planes);
|
|
|
|
virtual void MakeTexture ();
|
|
|
|
friend class FTexture;
|
|
};
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FTexture * PCXTexture_TryCreate(FileReader & file, int lumpnum)
|
|
{
|
|
PCXHeader hdr;
|
|
|
|
file.Seek(0, SEEK_SET);
|
|
if (file.Read(&hdr, sizeof(hdr)) != sizeof(hdr))
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
hdr.xmin = LittleShort(hdr.xmin);
|
|
hdr.xmax = LittleShort(hdr.xmax);
|
|
hdr.bytesPerScanLine = LittleShort(hdr.bytesPerScanLine);
|
|
|
|
if (hdr.manufacturer != 10 || hdr.encoding != 1) return NULL;
|
|
if (hdr.version != 0 && hdr.version != 2 && hdr.version != 3 && hdr.version != 4 && hdr.version != 5) return NULL;
|
|
if (hdr.bitsPerPixel != 1 && hdr.bitsPerPixel != 8) return NULL;
|
|
if (hdr.bitsPerPixel == 1 && hdr.numColorPlanes !=1 && hdr.numColorPlanes != 4) return NULL;
|
|
if (hdr.bitsPerPixel == 8 && hdr.bytesPerScanLine != ((hdr.xmax - hdr.xmin + 2)&~1)) return NULL;
|
|
|
|
for (int i = 0; i < 54; i++)
|
|
{
|
|
if (hdr.padding[i] != 0) return NULL;
|
|
}
|
|
|
|
file.Seek(0, SEEK_SET);
|
|
file.Read(&hdr, sizeof(hdr));
|
|
|
|
return new FPCXTexture(lumpnum, hdr);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FPCXTexture::FPCXTexture(int lumpnum, PCXHeader & hdr)
|
|
: FTexture(NULL, lumpnum), Pixels(0)
|
|
{
|
|
bMasked = false;
|
|
Width = LittleShort(hdr.xmax) - LittleShort(hdr.xmin) + 1;
|
|
Height = LittleShort(hdr.ymax) - LittleShort(hdr.ymin) + 1;
|
|
CalcBitSize();
|
|
|
|
DummySpans[0].TopOffset = 0;
|
|
DummySpans[0].Length = Height;
|
|
DummySpans[1].TopOffset = 0;
|
|
DummySpans[1].Length = 0;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FPCXTexture::~FPCXTexture ()
|
|
{
|
|
Unload ();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FPCXTexture::Unload ()
|
|
{
|
|
if (Pixels != NULL)
|
|
{
|
|
delete[] Pixels;
|
|
Pixels = NULL;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
FTextureFormat FPCXTexture::GetFormat()
|
|
{
|
|
return TEX_RGB;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
const BYTE *FPCXTexture::GetColumn (unsigned int column, const Span **spans_out)
|
|
{
|
|
if (Pixels == NULL)
|
|
{
|
|
MakeTexture ();
|
|
}
|
|
if ((unsigned)column >= (unsigned)Width)
|
|
{
|
|
if (WidthMask + 1 == Width)
|
|
{
|
|
column &= WidthMask;
|
|
}
|
|
else
|
|
{
|
|
column %= Width;
|
|
}
|
|
}
|
|
if (spans_out != NULL)
|
|
{
|
|
*spans_out = DummySpans;
|
|
}
|
|
return Pixels + column*Height;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
const BYTE *FPCXTexture::GetPixels ()
|
|
{
|
|
if (Pixels == NULL)
|
|
{
|
|
MakeTexture ();
|
|
}
|
|
return Pixels;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FPCXTexture::ReadPCX1bit (BYTE *dst, FileReader & lump, PCXHeader *hdr)
|
|
{
|
|
int y, i, bytes;
|
|
int rle_count = 0;
|
|
BYTE rle_value = 0;
|
|
|
|
BYTE * srcp = new BYTE[lump.GetLength() - sizeof(PCXHeader)];
|
|
lump.Read(srcp, lump.GetLength() - sizeof(PCXHeader));
|
|
BYTE * src = srcp;
|
|
|
|
for (y = 0; y < Height; ++y)
|
|
{
|
|
BYTE * ptr = &dst[y * Width];
|
|
|
|
bytes = hdr->bytesPerScanLine;
|
|
|
|
while (bytes--)
|
|
{
|
|
if (rle_count == 0)
|
|
{
|
|
if ( (rle_value = *src++) < 0xc0)
|
|
{
|
|
rle_count = 1;
|
|
}
|
|
else
|
|
{
|
|
rle_count = rle_value - 0xc0;
|
|
rle_value = *src++;
|
|
}
|
|
}
|
|
|
|
rle_count--;
|
|
|
|
for (i = 7; i >= 0; --i, ptr ++)
|
|
{
|
|
*ptr = ((rle_value & (1 << i)) > 0);
|
|
}
|
|
}
|
|
}
|
|
delete [] srcp;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FPCXTexture::ReadPCX4bits (BYTE *dst, FileReader & lump, PCXHeader *hdr)
|
|
{
|
|
int rle_count = 0, rle_value = 0;
|
|
int x, y, c;
|
|
int bytes;
|
|
BYTE * line = new BYTE[hdr->bytesPerScanLine];
|
|
BYTE * colorIndex = new BYTE[Width];
|
|
|
|
BYTE * srcp = new BYTE[lump.GetLength() - sizeof(PCXHeader)];
|
|
lump.Read(srcp, lump.GetLength() - sizeof(PCXHeader));
|
|
BYTE * src = srcp;
|
|
|
|
for (y = 0; y < Height; ++y)
|
|
{
|
|
BYTE * ptr = &dst[y * Width];
|
|
memset (ptr, 0, Width * sizeof (BYTE));
|
|
|
|
for (c = 0; c < 4; ++c)
|
|
{
|
|
BYTE * pLine = line;
|
|
|
|
bytes = hdr->bytesPerScanLine;
|
|
|
|
while (bytes--)
|
|
{
|
|
if (rle_count == 0)
|
|
{
|
|
if ( (rle_value = *src++) < 0xc0)
|
|
{
|
|
rle_count = 1;
|
|
}
|
|
else
|
|
{
|
|
rle_count = rle_value - 0xc0;
|
|
rle_value = *src++;
|
|
}
|
|
}
|
|
|
|
rle_count--;
|
|
*(pLine++) = rle_value;
|
|
}
|
|
|
|
/* compute line's color indexes */
|
|
for (x = 0; x < Width; ++x)
|
|
{
|
|
if (line[x / 8] & (128 >> (x % 8)))
|
|
ptr[x] += (1 << c);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* release memory */
|
|
delete [] colorIndex;
|
|
delete [] line;
|
|
delete [] srcp;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FPCXTexture::ReadPCX8bits (BYTE *dst, FileReader & lump, PCXHeader *hdr)
|
|
{
|
|
int rle_count = 0, rle_value = 0;
|
|
int y, bytes;
|
|
|
|
BYTE * srcp = new BYTE[lump.GetLength() - sizeof(PCXHeader)];
|
|
lump.Read(srcp, lump.GetLength() - sizeof(PCXHeader));
|
|
BYTE * src = srcp;
|
|
|
|
for (y = 0; y < Height; ++y)
|
|
{
|
|
BYTE * ptr = &dst[y * Width];
|
|
|
|
bytes = hdr->bytesPerScanLine;
|
|
while (bytes--)
|
|
{
|
|
if (rle_count == 0)
|
|
{
|
|
if( (rle_value = *src++) < 0xc0)
|
|
{
|
|
rle_count = 1;
|
|
}
|
|
else
|
|
{
|
|
rle_count = rle_value - 0xc0;
|
|
rle_value = *src++;
|
|
}
|
|
}
|
|
|
|
rle_count--;
|
|
*ptr++ = rle_value;
|
|
}
|
|
}
|
|
delete [] srcp;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FPCXTexture::ReadPCX24bits (BYTE *dst, FileReader & lump, PCXHeader *hdr, int planes)
|
|
{
|
|
int rle_count = 0, rle_value = 0;
|
|
int y, c;
|
|
int bytes;
|
|
|
|
BYTE * srcp = new BYTE[lump.GetLength() - sizeof(PCXHeader)];
|
|
lump.Read(srcp, lump.GetLength() - sizeof(PCXHeader));
|
|
BYTE * src = srcp;
|
|
|
|
for (y = 0; y < Height; ++y)
|
|
{
|
|
/* for each color plane */
|
|
for (c = 0; c < planes; ++c)
|
|
{
|
|
BYTE * ptr = &dst[y * Width * planes];
|
|
bytes = hdr->bytesPerScanLine;
|
|
|
|
while (bytes--)
|
|
{
|
|
if (rle_count == 0)
|
|
{
|
|
if( (rle_value = *src++) < 0xc0)
|
|
{
|
|
rle_count = 1;
|
|
}
|
|
else
|
|
{
|
|
rle_count = rle_value - 0xc0;
|
|
rle_value = *src++;
|
|
}
|
|
}
|
|
|
|
rle_count--;
|
|
ptr[c] = (BYTE)rle_value;
|
|
ptr += planes;
|
|
}
|
|
}
|
|
}
|
|
delete [] srcp;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FPCXTexture::MakeTexture()
|
|
{
|
|
BYTE PaletteMap[256];
|
|
PCXHeader header;
|
|
int bitcount;
|
|
|
|
FWadLump lump = Wads.OpenLumpNum(SourceLump);
|
|
|
|
lump.Read(&header, sizeof(header));
|
|
|
|
bitcount = header.bitsPerPixel * header.numColorPlanes;
|
|
Pixels = new BYTE[Width*Height];
|
|
|
|
if (bitcount < 24)
|
|
{
|
|
if (bitcount < 8)
|
|
{
|
|
for (int i=0;i<16;i++)
|
|
{
|
|
PaletteMap[i] = ColorMatcher.Pick(header.palette[i*3],header.palette[i*3+1],header.palette[i*3+2]);
|
|
}
|
|
|
|
switch (bitcount)
|
|
{
|
|
default:
|
|
case 1:
|
|
ReadPCX1bit (Pixels, lump, &header);
|
|
break;
|
|
|
|
case 4:
|
|
ReadPCX4bits (Pixels, lump, &header);
|
|
break;
|
|
}
|
|
}
|
|
else if (bitcount == 8)
|
|
{
|
|
BYTE c;
|
|
lump.Seek(-769, SEEK_END);
|
|
lump >> c;
|
|
//if (c !=0x0c) memcpy(PaletteMap, GrayMap, 256); // Fallback for files without palette
|
|
//else
|
|
for(int i=0;i<256;i++)
|
|
{
|
|
BYTE r,g,b;
|
|
lump >> r >> g >> b;
|
|
PaletteMap[i] = ColorMatcher.Pick(r,g,b);
|
|
}
|
|
lump.Seek(sizeof(header), SEEK_SET);
|
|
ReadPCX8bits (Pixels, lump, &header);
|
|
}
|
|
if (Width == Height)
|
|
{
|
|
FlipSquareBlockRemap(Pixels, Width, Height, PaletteMap);
|
|
}
|
|
else
|
|
{
|
|
BYTE *newpix = new BYTE[Width*Height];
|
|
FlipNonSquareBlockRemap (newpix, Pixels, Width, Height, Width, PaletteMap);
|
|
BYTE *oldpix = Pixels;
|
|
Pixels = newpix;
|
|
delete[] oldpix;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BYTE * buffer = new BYTE[Width*Height * 3];
|
|
BYTE * row = buffer;
|
|
ReadPCX24bits (buffer, lump, &header, 3);
|
|
for(int y=0; y<Height; y++)
|
|
{
|
|
for(int x=0; x < Width; x++)
|
|
{
|
|
Pixels[y+Height*x] = RGB256k.RGB[row[0]>>2][row[1]>>2][row[2]>>2];
|
|
row+=3;
|
|
}
|
|
}
|
|
delete [] buffer;
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// FPCXTexture::CopyTrueColorPixels
|
|
//
|
|
// Preserves the full color information (unlike software mode)
|
|
//
|
|
//===========================================================================
|
|
|
|
int FPCXTexture::CopyTrueColorPixels(FBitmap *bmp, int x, int y, int rotate, FCopyInfo *inf)
|
|
{
|
|
PalEntry pe[256];
|
|
PCXHeader header;
|
|
int bitcount;
|
|
BYTE * Pixels;
|
|
|
|
FWadLump lump = Wads.OpenLumpNum(SourceLump);
|
|
|
|
lump.Read(&header, sizeof(header));
|
|
|
|
bitcount = header.bitsPerPixel * header.numColorPlanes;
|
|
|
|
if (bitcount < 24)
|
|
{
|
|
Pixels = new BYTE[Width*Height];
|
|
if (bitcount < 8)
|
|
{
|
|
for (int i=0;i<16;i++)
|
|
{
|
|
pe[i] = PalEntry(header.palette[i*3],header.palette[i*3+1],header.palette[i*3+2]);
|
|
}
|
|
|
|
switch (bitcount)
|
|
{
|
|
default:
|
|
case 1:
|
|
ReadPCX1bit (Pixels, lump, &header);
|
|
break;
|
|
|
|
case 4:
|
|
ReadPCX4bits (Pixels, lump, &header);
|
|
break;
|
|
}
|
|
}
|
|
else if (bitcount == 8)
|
|
{
|
|
BYTE c;
|
|
lump.Seek(-769, SEEK_END);
|
|
lump >> c;
|
|
c=0x0c; // Apparently there's many non-compliant PCXs out there...
|
|
if (c !=0x0c)
|
|
{
|
|
for(int i=0;i<256;i++) pe[i]=PalEntry(255,i,i,i); // default to a gray map
|
|
}
|
|
else for(int i=0;i<256;i++)
|
|
{
|
|
BYTE r,g,b;
|
|
lump >> r >> g >> b;
|
|
pe[i] = PalEntry(255, r,g,b);
|
|
}
|
|
lump.Seek(sizeof(header), SEEK_SET);
|
|
ReadPCX8bits (Pixels, lump, &header);
|
|
}
|
|
bmp->CopyPixelData(x, y, Pixels, Width, Height, 1, Width, rotate, pe, inf);
|
|
}
|
|
else
|
|
{
|
|
Pixels = new BYTE[Width*Height * 3];
|
|
ReadPCX24bits (Pixels, lump, &header, 3);
|
|
bmp->CopyPixelDataRGB(x, y, Pixels, Width, Height, 3, Width*3, rotate, CF_RGB, inf);
|
|
}
|
|
delete [] Pixels;
|
|
return 0;
|
|
}
|
|
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
bool FPCXTexture::UseBasePalette()
|
|
{
|
|
return false;
|
|
}
|