gzdoom-gles/src/r_data/colormaps.h

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#ifndef __RES_CMAP_H
#define __RES_CMAP_H
struct lightlist_t;
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void R_InitColormaps ();
void R_DeinitColormaps ();
uint32_t R_ColormapNumForName(const char *name); // killough 4/4/98
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void R_SetDefaultColormap (const char *name); // [RH] change normal fadetable
uint32_t R_BlendForColormap (uint32_t map); // [RH] return calculated blend for a colormap
struct FakeCmap
{
char name[8];
PalEntry blend;
int lump;
};
extern TArray<FakeCmap> fakecmaps;
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// for internal use
struct FColormap
{
PalEntry LightColor; // a is saturation (0 full, 31=b/w, other=custom colormap)
PalEntry FadeColor; // a is fadedensity>>1
uint8_t Desaturation;
uint8_t BlendFactor; // This is for handling Legacy-style colormaps which use a different formula to calculate how the color affects lighting.
uint16_t FogDensity;
void Clear()
{
LightColor = 0xffffff;
FadeColor = 0;
Desaturation = 0;
BlendFactor = 0;
FogDensity = 0;
}
void MakeWhite()
{
LightColor = 0xffffff;
}
void ClearColor()
{
LightColor = 0xffffff;
BlendFactor = 0;
Desaturation = 0;
}
void CopyLight(FColormap &from)
{
LightColor = from.LightColor;
Desaturation = from.Desaturation;
BlendFactor = from.BlendFactor;
}
void CopyFog(FColormap &from)
{
FadeColor = from.FadeColor;
FogDensity = from.FogDensity;
}
void CopyFrom3DLight(lightlist_t *light);
void Decolorize()
{
LightColor.Decolorize();
}
bool operator == (const FColormap &other)
{
return LightColor == other.LightColor && FadeColor == other.FadeColor && Desaturation == other.Desaturation &&
BlendFactor == other.BlendFactor && FogDensity == other.FogDensity;
}
bool operator != (const FColormap &other)
{
return !operator==(other);
}
};
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// For hardware-accelerated weapon sprites in colored sectors
struct FColormapStyle
{
PalEntry Color;
PalEntry Fade;
int Desaturate;
float FadeLevel;
};
enum
{
NOFIXEDCOLORMAP = -1,
INVERSECOLORMAP, // the inverse map is used explicitly in a few places.
};
struct FSpecialColormap
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{
float ColorizeStart[3];
float ColorizeEnd[3];
uint8_t Colormap[256];
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PalEntry GrayscaleToColor[256];
};
extern TArray<FSpecialColormap> SpecialColormaps;
// some utility functions to store special colormaps in powerup blends
#define SPECIALCOLORMAP_MASK 0x00b60000
inline uint32_t MakeSpecialColormap(int index)
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{
assert(index >= 0 && index < 65536);
return index | SPECIALCOLORMAP_MASK;
}
int AddSpecialColormap(float r1, float g1, float b1, float r2, float g2, float b2);
extern uint8_t DesaturateColormap[31][256];
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enum EColorManipulation
{
CM_PLAIN2D = -2, // regular 2D drawing.
CM_INVALID = -1,
CM_DEFAULT = 0, // untranslated
CM_FIRSTSPECIALCOLORMAP, // first special fixed colormap
CM_FIRSTSPECIALCOLORMAPFORCED = 0x08000000, // first special fixed colormap, application forced (for 2D overlays)
};
#define CM_MAXCOLORMAP int(CM_FIRSTSPECIALCOLORMAP + SpecialColormaps.Size())
#define CM_MAXCOLORMAPFORCED int(CM_FIRSTSPECIALCOLORMAPFORCED + SpecialColormaps.Size())
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#endif