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75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
#pragma once
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#include <stdint.h>
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#include "zstring.h"
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#include "palentry.h"
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struct FScriptPosition;
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class FScanner;
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int BestColor(const uint32_t* pal, int r, int g, int b, int first = 1, int num = 255);
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int PTM_BestColor(const uint32_t* pal_in, int r, int g, int b, bool reverselookup, float powtable, int first = 1, int num = 255);
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void DoBlending(const PalEntry* from, PalEntry* to, int count, int r, int g, int b, int a);
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// Given an array of colors, fills in remap with values to remap the
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// passed array of colors to BaseColors. Used for loading palette downconversions of PNGs.
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void MakeRemap(uint32_t* BaseColors, const uint32_t* colors, uint8_t* remap, const uint8_t* useful, int numcolors);
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void MakeGoodRemap(uint32_t* BaseColors, uint8_t* Remap);
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// Colorspace conversion RGB <-> HSV
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void RGBtoHSV (float r, float g, float b, float *h, float *s, float *v);
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void HSVtoRGB (float *r, float *g, float *b, float h, float s, float v);
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// Returns the closest color to the one desired. String
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// should be of the form "rr gg bb".
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int V_GetColorFromString(const uint32_t* palette, const char* colorstring, FScriptPosition* sc = nullptr);
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// Scans through the X11R6RGB lump for a matching color
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// and returns a color string suitable for V_GetColorFromString.
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FString V_GetColorStringByName(const char* name, FScriptPosition* sc = nullptr);
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// Tries to get color by name, then by string
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int V_GetColor(const uint32_t* palette, const char* str, FScriptPosition* sc = nullptr);
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int V_GetColor(const uint32_t* palette, FScanner& sc);
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PalEntry averageColor(const uint32_t* data, int size, int maxout);
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enum
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{
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NOFIXEDCOLORMAP = -1,
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INVERSECOLORMAP, // the inverse map is used explicitly in a few places.
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GOLDCOLORMAP,
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REDCOLORMAP,
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GREENCOLORMAP,
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BLUECOLORMAP,
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REALINVERSECOLORMAP,
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};
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struct FSpecialColormapParameters
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{
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float Start[3], End[3];
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};
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struct FSpecialColormap
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{
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float ColorizeStart[3];
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float ColorizeEnd[3];
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uint8_t Colormap[256];
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PalEntry GrayscaleToColor[256];
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};
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extern TArray<FSpecialColormap> SpecialColormaps;
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extern uint8_t DesaturateColormap[31][256];
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int AddSpecialColormap(PalEntry *pe, float r1, float g1, float b1, float r2, float g2, float b2);
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void InitSpecialColormaps(PalEntry* pe);
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void UpdateSpecialColormap(PalEntry* BaseColors, unsigned int index, float r1, float g1, float b1, float r2, float g2, float b2);
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int ReadPalette(int lumpnum, uint8_t* buffer);
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enum EColorManipulation
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{
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CM_PLAIN2D = -2, // regular 2D drawing.
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CM_INVALID = -1,
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CM_DEFAULT = 0, // untranslated
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CM_FIRSTSPECIALCOLORMAP, // first special fixed colormap
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};
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#define CM_MAXCOLORMAP int(CM_FIRSTSPECIALCOLORMAP + SpecialColormaps.Size())
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