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gzdoom-gles/src/textures/multipatchtexture.cpp
Randy Heit 1d4f4b25d7 Don't free replaced textures that are used as patches. 
- Fixed: If a part of a multipatch texture is replaced by a HIRESTEX
  version, the original patch must not be deleted, since the multipatch
  texture still needs it for compositing.
2014-02-24 19:01:36 -06:00

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/*
** multipatchtexture.cpp
** Texture class for standard Doom multipatch textures
**
**---------------------------------------------------------------------------
** Copyright 2004-2006 Randy Heit
** 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 <ctype.h>
#include "doomtype.h"
#include "files.h"
#include "w_wad.h"
#include "i_system.h"
#include "gi.h"
#include "st_start.h"
#include "sc_man.h"
#include "templates.h"
#include "r_data/r_translate.h"
#include "bitmap.h"
#include "colormatcher.h"
#include "v_palette.h"
#include "v_video.h"
#include "m_fixed.h"
#include "textures/textures.h"
#include "r_data/colormaps.h"
// On the Alpha, accessing the shorts directly if they aren't aligned on a
// 4-byte boundary causes unaligned access warnings. Why it does this at
// all and only while initing the textures is beyond me.
#ifdef ALPHA
#define SAFESHORT(s) ((short)(((BYTE *)&(s))[0] + ((BYTE *)&(s))[1] * 256))
#else
#define SAFESHORT(s) LittleShort(s)
#endif
//--------------------------------------------------------------------------
//
// Data structures for the TEXTUREx lumps
//
//--------------------------------------------------------------------------
//
// Each texture is composed of one or more patches, with patches being lumps
// stored in the WAD. The lumps are referenced by number, and patched into
// the rectangular texture space using origin and possibly other attributes.
//
struct mappatch_t
{
SWORD originx;
SWORD originy;
SWORD patch;
SWORD stepdir;
SWORD colormap;
};
//
// A wall texture is a list of patches which are to be combined in a
// predefined order.
//
struct maptexture_t
{
BYTE name[8];
WORD Flags; // [RH] Was unused
BYTE ScaleX; // [RH] Scaling (8 is normal)
BYTE ScaleY; // [RH] Same as above
SWORD width;
SWORD height;
BYTE columndirectory[4]; // OBSOLETE
SWORD patchcount;
mappatch_t patches[1];
};
#define MAPTEXF_WORLDPANNING 0x8000
// Strife uses versions of the above structures that remove all unused fields
struct strifemappatch_t
{
SWORD originx;
SWORD originy;
SWORD patch;
};
//
// A wall texture is a list of patches which are to be combined in a
// predefined order.
//
struct strifemaptexture_t
{
BYTE name[8];
WORD Flags; // [RH] Was unused
BYTE ScaleX; // [RH] Scaling (8 is normal)
BYTE ScaleY; // [RH] Same as above
SWORD width;
SWORD height;
SWORD patchcount;
strifemappatch_t patches[1];
};
//==========================================================================
//
// In-memory representation of a single PNAMES lump entry
//
//==========================================================================
struct FPatchLookup
{
char Name[9];
FTexture *Texture;
};
//==========================================================================
//
// A texture defined in a TEXTURE1 or TEXTURE2 lump
//
//==========================================================================
class FMultiPatchTexture : public FTexture
{
public:
FMultiPatchTexture (const void *texdef, FPatchLookup *patchlookup, int maxpatchnum, bool strife, int deflump);
FMultiPatchTexture (FScanner &sc, int usetype);
~FMultiPatchTexture ();
const BYTE *GetColumn (unsigned int column, const Span **spans_out);
const BYTE *GetPixels ();
FTextureFormat GetFormat();
bool UseBasePalette() ;
void Unload ();
virtual void SetFrontSkyLayer ();
int CopyTrueColorPixels(FBitmap *bmp, int x, int y, int rotate, FCopyInfo *inf = NULL);
int GetSourceLump() { return DefinitionLump; }
FTexture *GetRedirect(bool wantwarped);
FTexture *GetRawTexture();
protected:
BYTE *Pixels;
Span **Spans;
int DefinitionLump;
struct TexPart
{
SWORD OriginX, OriginY;
BYTE Rotate;
BYTE op;
FRemapTable *Translation;
PalEntry Blend;
FTexture *Texture;
fixed_t Alpha;
TexPart();
};
int NumParts;
TexPart *Parts;
bool bRedirect:1;
bool bTranslucentPatches:1;
void MakeTexture ();
private:
void CheckForHacks ();
void ParsePatch(FScanner &sc, TexPart & part, bool silent, int usetype);
};
//==========================================================================
//
// FMultiPatchTexture :: FMultiPatchTexture
//
//==========================================================================
FMultiPatchTexture::FMultiPatchTexture (const void *texdef, FPatchLookup *patchlookup, int maxpatchnum, bool strife, int deflumpnum)
: Pixels (0), Spans(0), Parts(0), bRedirect(false), bTranslucentPatches(false)
{
union
{
const maptexture_t *d;
const strifemaptexture_t *s;
}
mtexture;
union
{
const mappatch_t *d;
const strifemappatch_t *s;
}
mpatch;
int i;
mtexture.d = (const maptexture_t *)texdef;
bMultiPatch = true;
if (strife)
{
NumParts = SAFESHORT(mtexture.s->patchcount);
}
else
{
NumParts = SAFESHORT(mtexture.d->patchcount);
}
if (NumParts < 0)
{
I_FatalError ("Bad texture directory");
}
UseType = FTexture::TEX_Wall;
Parts = NumParts > 0 ? new TexPart[NumParts] : NULL;
Width = SAFESHORT(mtexture.d->width);
Height = SAFESHORT(mtexture.d->height);
strncpy (Name, (const char *)mtexture.d->name, 8);
Name[8] = 0;
CalcBitSize ();
xScale = mtexture.d->ScaleX ? mtexture.d->ScaleX*(FRACUNIT/8) : FRACUNIT;
yScale = mtexture.d->ScaleY ? mtexture.d->ScaleY*(FRACUNIT/8) : FRACUNIT;
if (mtexture.d->Flags & MAPTEXF_WORLDPANNING)
{
bWorldPanning = true;
}
if (strife)
{
mpatch.s = &mtexture.s->patches[0];
}
else
{
mpatch.d = &mtexture.d->patches[0];
}
for (i = 0; i < NumParts; ++i)
{
if (unsigned(LittleShort(mpatch.d->patch)) >= unsigned(maxpatchnum))
{
I_FatalError ("Bad PNAMES and/or texture directory:\n\nPNAMES has %d entries, but\n%s wants to use entry %d.",
maxpatchnum, Name, LittleShort(mpatch.d->patch)+1);
}
Parts[i].OriginX = LittleShort(mpatch.d->originx);
Parts[i].OriginY = LittleShort(mpatch.d->originy);
Parts[i].Texture = patchlookup[LittleShort(mpatch.d->patch)].Texture;
if (Parts[i].Texture == NULL)
{
Printf ("Unknown patch %s in texture %s\n", patchlookup[LittleShort(mpatch.d->patch)].Name, Name);
NumParts--;
i--;
}
else
{
Parts[i].Texture->bKeepAround = true;
}
if (strife)
mpatch.s++;
else
mpatch.d++;
}
if (NumParts == 0)
{
Printf ("Texture %s is left without any patches\n", Name);
}
CheckForHacks ();
// If this texture is just a wrapper around a single patch, we can simply
// forward GetPixels() and GetColumn() calls to that patch.
if (NumParts == 1)
{
if (Parts->OriginX == 0 && Parts->OriginY == 0 &&
Parts->Texture->GetWidth() == Width &&
Parts->Texture->GetHeight() == Height)
{
bRedirect = true;
}
}
DefinitionLump = deflumpnum;
}
//==========================================================================
//
// FMultiPatchTexture :: ~FMultiPatchTexture
//
//==========================================================================
FMultiPatchTexture::~FMultiPatchTexture ()
{
Unload ();
if (Parts != NULL)
{
for(int i=0; i<NumParts;i++)
{
if (Parts[i].Translation != NULL) delete Parts[i].Translation;
}
delete[] Parts;
Parts = NULL;
}
if (Spans != NULL)
{
FreeSpans (Spans);
Spans = NULL;
}
}
//==========================================================================
//
// FMultiPatchTexture :: SetFrontSkyLayer
//
//==========================================================================
void FMultiPatchTexture::SetFrontSkyLayer ()
{
for (int i = 0; i < NumParts; ++i)
{
Parts[i].Texture->SetFrontSkyLayer ();
}
bNoRemap0 = true;
}
//==========================================================================
//
// FMultiPatchTexture :: Unload
//
//==========================================================================
void FMultiPatchTexture::Unload ()
{
if (Pixels != NULL)
{
delete[] Pixels;
Pixels = NULL;
}
}
//==========================================================================
//
// FMultiPatchTexture :: GetPixels
//
//==========================================================================
const BYTE *FMultiPatchTexture::GetPixels ()
{
if (bRedirect)
{
return Parts->Texture->GetPixels ();
}
if (Pixels == NULL)
{
MakeTexture ();
}
return Pixels;
}
//==========================================================================
//
// FMultiPatchTexture :: GetColumn
//
//==========================================================================
const BYTE *FMultiPatchTexture::GetColumn (unsigned int column, const Span **spans_out)
{
if (bRedirect)
{
return Parts->Texture->GetColumn (column, spans_out);
}
if (Pixels == NULL)
{
MakeTexture ();
}
if ((unsigned)column >= (unsigned)Width)
{
if (WidthMask + 1 == Width)
{
column &= WidthMask;
}
else
{
column %= Width;
}
}
if (spans_out != NULL)
{
if (Spans == NULL)
{
Spans = CreateSpans (Pixels);
}
*spans_out = Spans[column];
}
return Pixels + column*Height;
}
//==========================================================================
//
// GetBlendMap
//
//==========================================================================
BYTE *GetBlendMap(PalEntry blend, BYTE *blendwork)
{
switch (blend.a==0 ? int(blend) : -1)
{
case BLEND_ICEMAP:
return TranslationToTable(TRANSLATION(TRANSLATION_Standard, 7))->Remap;
default:
if (blend >= BLEND_SPECIALCOLORMAP1 && blend < BLEND_SPECIALCOLORMAP1 + SpecialColormaps.Size())
{
return SpecialColormaps[blend - BLEND_SPECIALCOLORMAP1].Colormap;
}
else if (blend >= BLEND_DESATURATE1 && blend <= BLEND_DESATURATE31)
{
return DesaturateColormap[blend - BLEND_DESATURATE1];
}
else
{
blendwork[0]=0;
if (blend.a == 255)
{
for(int i=1;i<256;i++)
{
int rr = (blend.r * GPalette.BaseColors[i].r) / 255;
int gg = (blend.g * GPalette.BaseColors[i].g) / 255;
int bb = (blend.b * GPalette.BaseColors[i].b) / 255;
blendwork[i] = ColorMatcher.Pick(rr, gg, bb);
}
return blendwork;
}
else if (blend.a != 0)
{
for(int i=1;i<256;i++)
{
int rr = (blend.r * blend.a + GPalette.BaseColors[i].r * (255-blend.a)) / 255;
int gg = (blend.g * blend.a + GPalette.BaseColors[i].g * (255-blend.a)) / 255;
int bb = (blend.b * blend.a + GPalette.BaseColors[i].b * (255-blend.a)) / 255;
blendwork[i] = ColorMatcher.Pick(rr, gg, bb);
}
return blendwork;
}
}
}
return NULL;
}
//==========================================================================
//
// FMultiPatchTexture :: MakeTexture
//
//==========================================================================
void FMultiPatchTexture::MakeTexture ()
{
// Add a little extra space at the end if the texture's height is not
// a power of 2, in case somebody accidentally makes it repeat vertically.
int numpix = Width * Height + (1 << HeightBits) - Height;
BYTE blendwork[256];
bool hasTranslucent = false;
Pixels = new BYTE[numpix];
memset (Pixels, 0, numpix);
for (int i = 0; i < NumParts; ++i)
{
if (Parts[i].op != OP_COPY)
{
hasTranslucent = true;
}
}
if (!hasTranslucent)
{
for (int i = 0; i < NumParts; ++i)
{
if (Parts[i].Texture->bHasCanvas) continue; // cannot use camera textures as patch.
BYTE *trans = Parts[i].Translation ? Parts[i].Translation->Remap : NULL;
{
if (Parts[i].Blend != 0)
{
trans = GetBlendMap(Parts[i].Blend, blendwork);
}
Parts[i].Texture->CopyToBlock (Pixels, Width, Height,
Parts[i].OriginX, Parts[i].OriginY, Parts[i].Rotate, trans);
}
}
}
else
{
// In case there are translucent patches let's do the composition in
// True color to keep as much precision as possible before downconverting to the palette.
BYTE *buffer = new BYTE[Width * Height * 4];
memset(buffer, 0, Width * Height * 4);
FillBuffer(buffer, Width * 4, Height, TEX_RGB);
for(int y = 0; y < Height; y++)
{
BYTE *in = buffer + Width * y * 4;
BYTE *out = Pixels + y;
for (int x = 0; x < Width; x++)
{
if (*out == 0 && in[3] != 0)
{
*out = RGB32k[in[2]>>3][in[1]>>3][in[0]>>3];
}
out += Height;
in += 4;
}
}
delete [] buffer;
}
}
//===========================================================================
//
// FMultipatchTexture::CopyTrueColorPixels
//
// Preserves the palettes of each individual patch
//
//===========================================================================
int FMultiPatchTexture::CopyTrueColorPixels(FBitmap *bmp, int x, int y, int rotate, FCopyInfo *inf)
{
int retv = -1;
if (bRedirect)
{ // Redirect straight to the real texture's routine.
return Parts[0].Texture->CopyTrueColorPixels(bmp, x, y, rotate, inf);
}
if (rotate != 0 || (inf != NULL && ((inf->op != OP_OVERWRITE && inf->op != OP_COPY) || inf->blend != BLEND_NONE)))
{ // We are doing some sort of fancy stuff to the destination bitmap, so composite to
// a temporary bitmap, and copy that.
FBitmap tbmp;
if (tbmp.Create(Width, Height))
{
retv = MAX(retv, CopyTrueColorPixels(&tbmp, 0, 0, 0));
bmp->CopyPixelDataRGB(x, y, tbmp.GetPixels(), Width, Height,
4, tbmp.GetPitch(), rotate, CF_BGRA, inf);
}
return retv;
}
// When compositing a multipatch texture with multipatch parts,
// drawing must be restricted to the actual area which is covered by this texture.
FClipRect saved_cr = bmp->GetClipRect();
bmp->IntersectClipRect(x, y, Width, Height);
if (inf != NULL && inf->op == OP_OVERWRITE)
{
bmp->Zero();
}
for(int i = 0; i < NumParts; i++)
{
int ret = -1;
FCopyInfo info;
if (Parts[i].Texture->bHasCanvas) continue; // cannot use camera textures as patch.
memset (&info, 0, sizeof(info));
info.alpha = Parts[i].Alpha;
info.invalpha = FRACUNIT - info.alpha;
info.op = ECopyOp(Parts[i].op);
PalEntry b = Parts[i].Blend;
if (b.a == 0 && b != BLEND_NONE)
{
info.blend = EBlend(b.d);
}
else if (b.a != 0)
{
if (b.a == 255)
{
info.blendcolor[0] = b.r * FRACUNIT / 255;
info.blendcolor[1] = b.g * FRACUNIT / 255;
info.blendcolor[2] = b.b * FRACUNIT / 255;
info.blend = BLEND_MODULATE;
}
else
{
fixed_t blendalpha = b.a * FRACUNIT / 255;
info.blendcolor[0] = b.r * blendalpha;
info.blendcolor[1] = b.g * blendalpha;
info.blendcolor[2] = b.b * blendalpha;
info.blendcolor[3] = FRACUNIT - blendalpha;
info.blend = BLEND_OVERLAY;
}
}
if (Parts[i].Translation != NULL)
{ // Using a translation forces downconversion to the base palette
ret = Parts[i].Texture->CopyTrueColorTranslated(bmp, x+Parts[i].OriginX, y+Parts[i].OriginY, Parts[i].Rotate, Parts[i].Translation, &info);
}
else
{
ret = Parts[i].Texture->CopyTrueColorPixels(bmp, x+Parts[i].OriginX, y+Parts[i].OriginY, Parts[i].Rotate, &info);
}
if (ret > retv) retv = ret;
}
// Restore previous clipping rectangle.
bmp->SetClipRect(saved_cr);
return retv;
}
//==========================================================================
//
// FMultiPatchTexture :: GetFormat
//
// only returns 'paletted' if all patches use the base palette.
//
//==========================================================================
FTextureFormat FMultiPatchTexture::GetFormat()
{
if (bComplex) return TEX_RGB;
if (NumParts == 1) return Parts[0].Texture->GetFormat();
return UseBasePalette() ? TEX_Pal : TEX_RGB;
}
//===========================================================================
//
// FMultipatchTexture::UseBasePalette
//
// returns true if all patches in the texture use the unmodified base
// palette.
//
//===========================================================================
bool FMultiPatchTexture::UseBasePalette()
{
if (bComplex) return false;
for(int i=0;i<NumParts;i++)
{
if (!Parts[i].Texture->UseBasePalette()) return false;
}
return true;
}
//==========================================================================
//
// FMultiPatchTexture :: CheckForHacks
//
//==========================================================================
void FMultiPatchTexture::CheckForHacks ()
{
if (NumParts <= 0)
{
return;
}
// Heretic sky textures are marked as only 128 pixels tall,
// even though they are really 200 pixels tall.
if (gameinfo.gametype == GAME_Heretic &&
Name[0] == 'S' &&
Name[1] == 'K' &&
Name[2] == 'Y' &&
Name[4] == 0 &&
Name[3] >= '1' &&
Name[3] <= '3' &&
Height == 128)
{
Height = 200;
HeightBits = 8;
return;
}
// The Doom E1 sky has its patch's y offset at -8 instead of 0.
if (gameinfo.gametype == GAME_Doom &&
!(gameinfo.flags & GI_MAPxx) &&
NumParts == 1 &&
Height == 128 &&
Parts->OriginY == -8 &&
Name[0] == 'S' &&
Name[1] == 'K' &&
Name[2] == 'Y' &&
Name[3] == '1' &&
Name[4] == 0)
{
Parts->OriginY = 0;
return;
}
// BIGDOOR7 in Doom also has patches at y offset -4 instead of 0.
if (gameinfo.gametype == GAME_Doom &&
!(gameinfo.flags & GI_MAPxx) &&
NumParts == 2 &&
Height == 128 &&
Parts[0].OriginY == -4 &&
Parts[1].OriginY == -4 &&
Name[0] == 'B' &&
Name[1] == 'I' &&
Name[2] == 'G' &&
Name[3] == 'D' &&
Name[4] == 'O' &&
Name[5] == 'O' &&
Name[6] == 'R' &&
Name[7] == '7')
{
Parts[0].OriginY = 0;
Parts[1].OriginY = 0;
return;
}
// [RH] Some wads (I forget which!) have single-patch textures 256
// pixels tall that have patch lengths recorded as 0. I can't think of
// any good reason for them to do this, and since I didn't make note
// of which wad made me hack in support for them, the hack is gone
// because I've added support for DeePsea's true tall patches.
//
// Okay, I found a wad with crap patches: Pleiades.wad's sky patches almost
// fit this description and are a big mess, but they're not single patch!
if (Height == 256)
{
int i;
// All patches must be at the top of the texture for this fix
for (i = 0; i < NumParts; ++i)
{
if (Parts[i].OriginY != 0)
{
break;
}
}
if (i == NumParts)
{
for (i = 0; i < NumParts; ++i)
{
Parts[i].Texture->HackHack(256);
}
}
}
}
//==========================================================================
//
// FMultiPatchTexture :: GetRedirect
//
//==========================================================================
FTexture *FMultiPatchTexture::GetRedirect(bool wantwarped)
{
return bRedirect ? Parts->Texture : this;
}
//==========================================================================
//
// FMultiPatchTexture :: GetRawTexture
//
// Doom ignored all compositing of mid-sided textures on two-sided lines.
// Since these textures had to be single-patch in Doom, that essentially
// means it ignores their Y offsets.
//
// If this texture is composed of only one patch, return that patch.
// Otherwise, return this texture, since Doom wouldn't have been able to
// draw it anyway.
//
//==========================================================================
FTexture *FMultiPatchTexture::GetRawTexture()
{
return NumParts == 1 ? Parts->Texture : this;
}
//==========================================================================
//
// FMultiPatchTexture :: TexPart :: TexPart
//
//==========================================================================
FMultiPatchTexture::TexPart::TexPart()
{
OriginX = OriginY = 0;
Rotate = 0;
Texture = NULL;
Translation = NULL;
Blend = 0;
Alpha = FRACUNIT;
op = OP_COPY;
}
//==========================================================================
//
// FTextureManager :: AddTexturesLump
//
//==========================================================================
void FTextureManager::AddTexturesLump (const void *lumpdata, int lumpsize, int deflumpnum, int patcheslump, int firstdup, bool texture1)
{
FPatchLookup *patchlookup;
int i;
DWORD numpatches;
if (firstdup == 0)
{
firstdup = (int)Textures.Size();
}
{
FWadLump pnames = Wads.OpenLumpNum (patcheslump);
pnames >> numpatches;
// Check whether the amount of names reported is correct.
if ((signed)numpatches < 0)
{
Printf("Corrupt PNAMES lump found (negative amount of entries reported)");
return;
}
// Check whether the amount of names reported is correct.
int lumplength = Wads.LumpLength(patcheslump);
if (numpatches > DWORD((lumplength-4)/8))
{
Printf("PNAMES lump is shorter than required (%u entries reported but only %d bytes (%d entries) long\n",
numpatches, lumplength, (lumplength-4)/8);
// Truncate but continue reading. Who knows how many such lumps exist?
numpatches = (lumplength-4)/8;
}
// Catalog the patches these textures use so we know which
// textures they represent.
patchlookup = (FPatchLookup *)alloca (numpatches * sizeof(*patchlookup));
for (DWORD i = 0; i < numpatches; ++i)
{
pnames.Read (patchlookup[i].Name, 8);
patchlookup[i].Name[8] = 0;
FTextureID j = CheckForTexture (patchlookup[i].Name, FTexture::TEX_WallPatch);
if (j.isValid())
{
patchlookup[i].Texture = Textures[j.GetIndex()].Texture;
}
else
{
// Shareware Doom has the same PNAMES lump as the registered
// Doom, so printing warnings for patches that don't really
// exist isn't such a good idea.
//Printf ("Patch %s not found.\n", patchlookup[i].Name);
patchlookup[i].Texture = NULL;
}
}
}
bool isStrife = false;
const DWORD *maptex, *directory;
DWORD maxoff;
int numtextures;
DWORD offset = 0; // Shut up, GCC!
maptex = (const DWORD *)lumpdata;
numtextures = LittleLong(*maptex);
maxoff = lumpsize;
if (maxoff < DWORD(numtextures+1)*4)
{
Printf ("Texture directory is too short");
return;
}
// Scan the texture lump to decide if it contains Doom or Strife textures
for (i = 0, directory = maptex+1; i < numtextures; ++i)
{
offset = LittleLong(directory[i]);
if (offset > maxoff)
{
Printf ("Bad texture directory");
return;
}
maptexture_t *tex = (maptexture_t *)((BYTE *)maptex + offset);
// There is bizzarely a Doom editing tool that writes to the
// first two elements of columndirectory, so I can't check those.
if (SAFESHORT(tex->patchcount) < 0 ||
tex->columndirectory[2] != 0 ||
tex->columndirectory[3] != 0)
{
isStrife = true;
break;
}
}
// Textures defined earlier in the lump take precedence over those defined later,
// but later TEXTUREx lumps take precedence over earlier ones.
for (i = 1, directory = maptex; i <= numtextures; ++i)
{
if (i == 1 && texture1)
{
// The very first texture is just a dummy. Copy its dimensions to texture 0.
// It still needs to be created in case someone uses it by name.
offset = LittleLong(directory[1]);
const maptexture_t *tex = (const maptexture_t *)((const BYTE *)maptex + offset);
FDummyTexture *tex0 = static_cast<FDummyTexture *>(Textures[0].Texture);
tex0->SetSize (SAFESHORT(tex->width), SAFESHORT(tex->height));
}
offset = LittleLong(directory[i]);
if (offset > maxoff)
{
Printf ("Bad texture directory");
return;
}
// If this texture was defined already in this lump, skip it
// This could cause problems with animations that use the same name for intermediate
// textures. Should I be worried?
int j;
for (j = (int)Textures.Size() - 1; j >= firstdup; --j)
{
if (strnicmp (Textures[j].Texture->Name, (const char *)maptex + offset, 8) == 0)
break;
}
if (j + 1 == firstdup)
{
FMultiPatchTexture *tex = new FMultiPatchTexture ((const BYTE *)maptex + offset, patchlookup, numpatches, isStrife, deflumpnum);
if (i == 1 && texture1)
{
tex->UseType = FTexture::TEX_FirstDefined;
}
TexMan.AddTexture (tex);
StartScreen->Progress();
}
}
}
//==========================================================================
//
// FTextureManager :: AddTexturesLumps
//
//==========================================================================
void FTextureManager::AddTexturesLumps (int lump1, int lump2, int patcheslump)
{
int firstdup = (int)Textures.Size();
if (lump1 >= 0)
{
FMemLump texdir = Wads.ReadLump (lump1);
AddTexturesLump (texdir.GetMem(), Wads.LumpLength (lump1), lump1, patcheslump, firstdup, true);
}
if (lump2 >= 0)
{
FMemLump texdir = Wads.ReadLump (lump2);
AddTexturesLump (texdir.GetMem(), Wads.LumpLength (lump2), lump2, patcheslump, firstdup, false);
}
}
//==========================================================================
//
//
//
//==========================================================================
void FMultiPatchTexture::ParsePatch(FScanner &sc, TexPart & part, bool silent, int usetype)
{
FString patchname;
sc.MustGetString();
FTextureID texno = TexMan.CheckForTexture(sc.String, usetype);
int Mirror = 0;
if (!texno.isValid())
{
int lumpnum = Wads.CheckNumForFullName(sc.String);
if (lumpnum >= 0)
{
texno = TexMan.FindTextureByLumpNum(lumpnum);
if (texno.isValid ())
{
part.Texture = TexMan[texno];
}
else
{
part.Texture = FTexture::CreateTexture("", lumpnum, usetype);
TexMan.AddTexture(part.Texture);
}
}
else if (strlen(sc.String) <= 8 && !strpbrk(sc.String, "./"))
{
int lumpnum = Wads.CheckNumForName(sc.String, usetype == TEX_MiscPatch? ns_graphics : ns_patches);
if (lumpnum >= 0)
{
part.Texture = FTexture::CreateTexture(lumpnum, usetype);
TexMan.AddTexture(part.Texture);
}
}
}
else
{
part.Texture = TexMan[texno];
bComplex |= part.Texture->bComplex;
}
if (part.Texture == NULL)
{
if (!silent) Printf("Unknown patch '%s' in texture '%s'\n", sc.String, Name);
}
sc.MustGetStringName(",");
sc.MustGetNumber();
part.OriginX = sc.Number;
sc.MustGetStringName(",");
sc.MustGetNumber();
part.OriginY = sc.Number;
if (sc.CheckString("{"))
{
while (!sc.CheckString("}"))
{
sc.MustGetString();
if (sc.Compare("flipx"))
{
Mirror |= 1;
}
else if (sc.Compare("flipy"))
{
Mirror |= 2;
}
else if (sc.Compare("rotate"))
{
sc.MustGetNumber();
sc.Number = (((sc.Number + 90)%360)-90);
if (sc.Number != 0 && sc.Number !=90 && sc.Number != 180 && sc.Number != -90)
{
sc.ScriptError("Rotation must be a multiple of 90 degrees.");
}
part.Rotate = (sc.Number / 90) & 3;
}
else if (sc.Compare("Translation"))
{
int match;
bComplex = true;
if (part.Translation != NULL) delete part.Translation;
part.Translation = NULL;
part.Blend = 0;
static const char *maps[] = { "inverse", "gold", "red", "green", "blue", NULL };
sc.MustGetString();
match = sc.MatchString(maps);
if (match >= 0)
{
part.Blend = BLEND_SPECIALCOLORMAP1 + match;
}
else if (sc.Compare("ICE"))
{
part.Blend = BLEND_ICEMAP;
}
else if (sc.Compare("DESATURATE"))
{
sc.MustGetStringName(",");
sc.MustGetNumber();
part.Blend = BLEND_DESATURATE1 + clamp(sc.Number-1, 0, 30);
}
else
{
sc.UnGet();
part.Translation = new FRemapTable;
part.Translation->MakeIdentity();
do
{
sc.MustGetString();
part.Translation->AddToTranslation(sc.String);
}
while (sc.CheckString(","));
}
}
else if (sc.Compare("Colormap"))
{
float r1,g1,b1;
float r2,g2,b2;
sc.MustGetFloat();
r1 = (float)sc.Float;
sc.MustGetStringName(",");
sc.MustGetFloat();
g1 = (float)sc.Float;
sc.MustGetStringName(",");
sc.MustGetFloat();
b1 = (float)sc.Float;
if (!sc.CheckString(","))
{
part.Blend = AddSpecialColormap(0,0,0, r1, g1, b1);
}
else
{
sc.MustGetFloat();
r2 = (float)sc.Float;
sc.MustGetStringName(",");
sc.MustGetFloat();
g2 = (float)sc.Float;
sc.MustGetStringName(",");
sc.MustGetFloat();
b2 = (float)sc.Float;
part.Blend = AddSpecialColormap(r1, g1, b1, r2, g2, b2);
}
}
else if (sc.Compare("Blend"))
{
bComplex = true;
if (part.Translation != NULL) delete part.Translation;
part.Translation = NULL;
part.Blend = 0;
if (!sc.CheckNumber())
{
sc.MustGetString();
part.Blend = V_GetColor(NULL, sc.String);
}
else
{
int r,g,b;
r = sc.Number;
sc.MustGetStringName(",");
sc.MustGetNumber();
g = sc.Number;
sc.MustGetStringName(",");
sc.MustGetNumber();
b = sc.Number;
sc.MustGetStringName(",");
part.Blend = MAKERGB(r, g, b);
}
// Blend.a may never be 0 here.
if (sc.CheckString(","))
{
sc.MustGetFloat();
if (sc.Float > 0.f)
part.Blend.a = clamp<int>(int(sc.Float*255), 1, 254);
else
part.Blend = 0;
}
else part.Blend.a = 255;
}
else if (sc.Compare("alpha"))
{
sc.MustGetFloat();
part.Alpha = clamp(FLOAT2FIXED(sc.Float), 0, FRACUNIT);
// bComplex is not set because it is only needed when the style is not OP_COPY.
}
else if (sc.Compare("style"))
{
static const char *styles[] = {"copy", "translucent", "add", "subtract", "reversesubtract", "modulate", "copyalpha", "copynewalpha", "overlay", NULL };
sc.MustGetString();
part.op = sc.MustMatchString(styles);
bComplex |= (part.op != OP_COPY);
bTranslucentPatches = bComplex;
}
else if (sc.Compare("useoffsets"))
{
if (part.Texture != NULL)
{
part.OriginX -= part.Texture->LeftOffset;
part.OriginY -= part.Texture->TopOffset;
}
}
}
}
if (Mirror & 2)
{
part.Rotate = (part.Rotate + 2) & 3;
Mirror ^= 1;
}
if (Mirror & 1)
{
part.Rotate |= 4;
}
}
//==========================================================================
//
// Constructor for text based multipatch definitions
//
//==========================================================================
FMultiPatchTexture::FMultiPatchTexture (FScanner &sc, int usetype)
: Pixels (0), Spans(0), Parts(0), bRedirect(false), bTranslucentPatches(false)
{
TArray<TexPart> parts;
bool bSilent = false;
bMultiPatch = true;
sc.SetCMode(true);
sc.MustGetString();
const char* textureName = NULL;
if (sc.Compare("optional"))
{
bSilent = true;
sc.MustGetString();
if (sc.Compare(","))
{
// this is not right. Apparently a texture named 'optional' is being defined right now...
sc.UnGet();
textureName = "optional";
bSilent = false;
}
}
uppercopy(Name, !textureName ? sc.String : textureName);
Name[8] = 0;
sc.MustGetStringName(",");
sc.MustGetNumber();
Width = sc.Number;
sc.MustGetStringName(",");
sc.MustGetNumber();
Height = sc.Number;
UseType = usetype;
if (sc.CheckString("{"))
{
while (!sc.CheckString("}"))
{
sc.MustGetString();
if (sc.Compare("XScale"))
{
sc.MustGetFloat();
xScale = FLOAT2FIXED(sc.Float);
if (xScale == 0) sc.ScriptError("Texture %s is defined with null x-scale\n", Name);
}
else if (sc.Compare("YScale"))
{
sc.MustGetFloat();
yScale = FLOAT2FIXED(sc.Float);
if (yScale == 0) sc.ScriptError("Texture %s is defined with null y-scale\n", Name);
}
else if (sc.Compare("WorldPanning"))
{
bWorldPanning = true;
}
else if (sc.Compare("NullTexture"))
{
UseType = FTexture::TEX_Null;
}
else if (sc.Compare("NoDecals"))
{
bNoDecals = true;
}
else if (sc.Compare("Patch"))
{
TexPart part;
ParsePatch(sc, part, bSilent, TEX_WallPatch);
if (part.Texture != NULL) parts.Push(part);
part.Texture = NULL;
part.Translation = NULL;
}
else if (sc.Compare("Graphic"))
{
TexPart part;
ParsePatch(sc, part, bSilent, TEX_MiscPatch);
if (part.Texture != NULL) parts.Push(part);
part.Texture = NULL;
part.Translation = NULL;
}
else if (sc.Compare("Offset"))
{
sc.MustGetNumber();
LeftOffset = sc.Number;
sc.MustGetStringName(",");
sc.MustGetNumber();
TopOffset = sc.Number;
}
else
{
sc.ScriptError("Unknown texture property '%s'", sc.String);
}
}
NumParts = parts.Size();
Parts = new TexPart[NumParts];
memcpy(Parts, &parts[0], NumParts * sizeof(*Parts));
//CalcBitSize ();
// If this texture is just a wrapper around a single patch, we can simply
// forward GetPixels() and GetColumn() calls to that patch.
if (NumParts == 1)
{
if (Parts->OriginX == 0 && Parts->OriginY == 0 &&
Parts->Texture->GetWidth() == Width &&
Parts->Texture->GetHeight() == Height &&
Parts->Rotate == 0 &&
!bComplex)
{
bRedirect = true;
}
}
}
if (Width <= 0 || Height <= 0)
{
UseType = FTexture::TEX_Null;
Printf("Texture %s has invalid dimensions (%d, %d)\n", Name, Width, Height);
Width = Height = 1;
}
CalcBitSize ();
sc.SetCMode(false);
}
void FTextureManager::ParseXTexture(FScanner &sc, int usetype)
{
FTexture *tex = new FMultiPatchTexture(sc, usetype);
TexMan.AddTexture (tex);
}
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