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- moved the texture warping into templated subfunctions, so that the same code can be used for true color buffers as well.

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This commit is contained in:
Christoph Oelckers 2016-04-28 18:17:18 +02:00
parent af2a1769d8
commit 3bbb5c7237
2 changed files with 65 additions and 73 deletions
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61
src/textures/warpbuffer.h Normal file
View file

@ -0,0 +1,61 @@
template<class TYPE>
void WarpBufferType1(TYPE *Pixels, const TYPE *source, int width, int height, int xmul, int ymul, unsigned time, float Speed)
{
TYPE *buffer = (TYPE *)alloca(sizeof(TYPE) * MAX(width, height));
int ymask = height - 1;
int x, y;
// [mxd] Rewrote to fix animation for NPo2 textures
unsigned timebase = unsigned(time * Speed * 32 / 28);
for (y = height - 1; y >= 0; y--)
{
int xf = (TexMan.sintable[((timebase + y*ymul) >> 2)&TexMan.SINMASK] >> 11) % width;
if (xf < 0) xf += width;
int xt = xf;
const TYPE *sourcep = source + y;
TYPE *dest = Pixels + y;
for (xt = width; xt; xt--, xf = (xf + 1) % width, dest += height)
*dest = sourcep[xf + ymask * xf];
}
timebase = unsigned(time * Speed * 23 / 28);
for (x = width - 1; x >= 0; x--)
{
int yf = (TexMan.sintable[((time + (x + 17)*xmul) >> 2)&TexMan.SINMASK] >> 11) % height;
if (yf < 0) yf += height;
int yt = yf;
const TYPE *sourcep = Pixels + (x + ymask * x);
TYPE *dest = buffer;
for (yt = height; yt; yt--, yf = (yf + 1) % height)
*dest++ = sourcep[yf];
memcpy(Pixels + (x + ymask*x), buffer, height * sizeof(TYPE));
}
}
template<class TYPE>
void WarpBufferType2(TYPE *Pixels, const TYPE *source, int width, int height, int xmul, int ymul, unsigned time, float Speed)
{
int ymask = height - 1;
int x, y;
unsigned timebase = unsigned(time * Speed * 40 / 28);
// [mxd] Rewrote to fix animation for NPo2 textures
for (x = 0; x < width; x++)
{
TYPE *dest = Pixels + (x + ymask * x);
for (y = 0; y < height; y++)
{
int xt = (x + 128
+ ((TexMan.sintable[((y*ymul + timebase * 5 + 900) >> 2) & TexMan.SINMASK]) >> 13)
+ ((TexMan.sintable[((x*xmul + timebase * 4 + 300) >> 2) & TexMan.SINMASK]) >> 13)) % width;
int yt = (y + 128
+ ((TexMan.sintable[((y*ymul + timebase * 3 + 700) >> 2) & TexMan.SINMASK]) >> 13)
+ ((TexMan.sintable[((x*xmul + timebase * 4 + 1200) >> 2) & TexMan.SINMASK]) >> 13)) % height;
*dest++ = source[(xt + ymask * xt) + yt];
}
}
}

77
src/textures/warptexture.cpp
View file

@ -38,6 +38,7 @@
#include "templates.h"
#include "r_utility.h"
#include "textures/textures.h"
#include "warpbuffer.h"
FWarpTexture::FWarpTexture (FTexture *source)
@ -120,6 +121,7 @@ const BYTE *FWarpTexture::GetColumn (unsigned int column, const Span **spans_out
return Pixels + column*Height;
}
void FWarpTexture::MakeTexture(DWORD time)
{
const BYTE *otherpix = SourcePic->GetPixels();
@ -135,46 +137,7 @@ void FWarpTexture::MakeTexture(DWORD time)
}
GenTime = time;
BYTE *buffer = (BYTE *)alloca(MAX(Width, Height));
int xsize = Width;
int ysize = Height;
int xmul = WidthOffsetMultiplier; // [mxd]
int ymul = HeightOffsetMultiplier; // [mxd]
int xmask = WidthMask;
int ymask = Height - 1;
int ybits = HeightBits;
int x, y;
if ((1 << ybits) > Height)
{
ybits--;
}
DWORD timebase = DWORD(time * Speed * 32 / 28);
// [mxd] Rewrote to fix animation for NPo2 textures
for (y = ysize - 1; y >= 0; y--)
{
int xf = (TexMan.sintable[((timebase + y*ymul) >> 2)&TexMan.SINMASK] >> 11) % xsize;
if (xf < 0) xf += xsize;
int xt = xf;
const BYTE *source = otherpix + y;
BYTE *dest = Pixels + y;
for (xt = xsize; xt; xt--, xf = (xf + 1) % xsize, dest += ysize)
*dest = source[xf + ymask * xf];
}
timebase = DWORD(time * Speed * 23 / 28);
for (x = xsize - 1; x >= 0; x--)
{
int yf = (TexMan.sintable[((time + (x + 17)*xmul) >> 2)&TexMan.SINMASK] >> 11) % ysize;
if (yf < 0) yf += ysize;
int yt = yf;
const BYTE *source = Pixels + (x + ymask * x);
BYTE *dest = buffer;
for (yt = ysize; yt; yt--, yf = (yf + 1) % ysize)
*dest++ = source[yf];
memcpy(Pixels + (x + ymask*x), buffer, ysize);
}
WarpBufferType1(Pixels, otherpix, Width, Height, WidthOffsetMultiplier, HeightOffsetMultiplier, time, Speed);
}
// [mxd] Non power of 2 textures need different offset multipliers, otherwise warp animation won't sync across texture
@ -222,39 +185,7 @@ void FWarp2Texture::MakeTexture (DWORD time)
}
GenTime = time;
int xsize = Width;
int ysize = Height;
int xmul = WidthOffsetMultiplier; // [mxd]
int ymul = HeightOffsetMultiplier; // [mxd]
int xmask = WidthMask;
int ymask = Height - 1;
int ybits = HeightBits;
int x, y;
if ((1 << ybits) > Height)
{
ybits--;
}
DWORD timebase = DWORD(time * Speed * 40 / 28);
// [mxd] Rewrote to fix animation for NPo2 textures
for (x = 0; x < xsize; x++)
{
BYTE *dest = Pixels + (x + ymask * x);
for (y = 0; y < ysize; y++)
{
int xt = (x + 128
+ ((TexMan.sintable[((y*ymul + timebase*5 + 900) >> 2) & TexMan.SINMASK])>>13)
+ ((TexMan.sintable[((x*xmul + timebase*4 + 300) >> 2) & TexMan.SINMASK])>>13)) % xsize;
int yt = (y + 128
+ ((TexMan.sintable[((y*ymul + timebase*3 + 700) >> 2) & TexMan.SINMASK])>>13)
+ ((TexMan.sintable[((x*xmul + timebase*4 + 1200) >> 2) & TexMan.SINMASK])>>13)) % ysize;
*dest++ = otherpix[(xt + ymask * xt) + yt];
}
}
WarpBufferType2(Pixels, otherpix, Width, Height, WidthOffsetMultiplier, HeightOffsetMultiplier, time, Speed);
}
//==========================================================================