OrdinaryMagician/vkdoom_m
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- Added a check to Dehacked code which tries to set the blend color.

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It must set it to 0 if the alpha is 0 to avoid problems with special
  colormap detection.
- Changed SPECIALCOLORMAP_MASK again so that it does not interfere with
  any valid setting. It must use a value with a 0-alpha because these
  are guaranteed not to be produced by the DECORATE code elsewhere.
- Fixed precision issues with AddFixedColormap's search for identical colormaps.
- Added custom colormap support to texture composition code.
- Fixed initialization of FSpecialColormap::GrayscaleToColor. This is not
  a mapping from the palette but from a [0,255] grayscale ramp and used to
  apply colormaps to true color images for texture composition.

SVN r1867 (trunk)
This commit is contained in:
Christoph Oelckers 2009-09-22 08:06:52 +00:00
commit 9cc67f565c
6 changed files with 85 additions and 27 deletions
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35
src/v_palette.cpp
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@ -35,6 +35,7 @@
#include <stddef.h>
#include <string.h>
#include <math.h>
#include <float.h>
#ifdef _WIN32
#include <io.h>
#else
@ -360,24 +361,25 @@ static bool FixBuildPalette (BYTE *opal, int lump, bool blood)
return true;
}
int AddSpecialColormap(double r1, double g1, double b1, double r2, double g2, double b2)
int AddSpecialColormap(float r1, float g1, float b1, float r2, float g2, float b2)
{
// Clamp these in range for the hardware shader.
r1 = clamp(r1, 0.0, 2.0);
g1 = clamp(g1, 0.0, 2.0);
b1 = clamp(b1, 0.0, 2.0);
r2 = clamp(r2, 0.0, 2.0);
g2 = clamp(g2, 0.0, 2.0);
b2 = clamp(b2, 0.0, 2.0);
r1 = clamp(r1, 0.0f, 2.0f);
g1 = clamp(g1, 0.0f, 2.0f);
b1 = clamp(b1, 0.0f, 2.0f);
r2 = clamp(r2, 0.0f, 2.0f);
g2 = clamp(g2, 0.0f, 2.0f);
b2 = clamp(b2, 0.0f, 2.0f);
for(unsigned i=0; i<SpecialColormaps.Size(); i++)
{
if (SpecialColormaps[i].ColorizeStart[0] == r1 &&
SpecialColormaps[i].ColorizeStart[1] == g1 &&
SpecialColormaps[i].ColorizeStart[2] == b1 &&
SpecialColormaps[i].ColorizeEnd[0] == r2 &&
SpecialColormaps[i].ColorizeEnd[1] == g2 &&
SpecialColormaps[i].ColorizeEnd[2] == b2)
// Avoid precision issues here when trying to find a proper match.
if (fabs(SpecialColormaps[i].ColorizeStart[0]- r1) < FLT_EPSILON &&
fabs(SpecialColormaps[i].ColorizeStart[1]- g1) < FLT_EPSILON &&
fabs(SpecialColormaps[i].ColorizeStart[2]- b1) < FLT_EPSILON &&
fabs(SpecialColormaps[i].ColorizeEnd[0]- r2) < FLT_EPSILON &&
fabs(SpecialColormaps[i].ColorizeEnd[1]- g2) < FLT_EPSILON &&
fabs(SpecialColormaps[i].ColorizeEnd[2]- b2) < FLT_EPSILON)
{
return i; // The map already exists
}
@ -412,7 +414,12 @@ int AddSpecialColormap(double r1, double g1, double b1, double r2, double g2, do
cm->Colormap[c] = ColorMatcher.Pick(pe);
// This table is used by the texture composition code
cm->GrayscaleToColor[c] = pe;
for(int i = 0;i < 256; i++)
{
cm->GrayscaleToColor[i] = PalEntry( MIN(255, int(r1 + i*r2)),
MIN(255, int(g1 + i*g2)),
MIN(255, int(b1 + i*b2)));
}
}
return SpecialColormaps.Size() - 1;
}