33 static inline void PetscHlsToRgb(double h, double l, double s, double *r, double *g, double *b)  in PetscHlsToRgb()  argument
38     *r        = PetscHlsHelper(m1, m2, h + 1 / 3.);  in PetscHlsToRgb()
43     *r = *g = *b = l;  in PetscHlsToRgb()
47 static inline void PetscGammaCorrect(double *r, double *g, double *b)  in PetscGammaCorrect()  argument
50   *r               = (double)PetscPowReal((PetscReal)*r, igamma);  in PetscGammaCorrect()
55 static PetscErrorCode PetscDrawCmap_Hue(int mapsize, unsigned char R[], unsigned char G[], unsigned…  in PetscDrawCmap_Hue()  argument
62     double hue = maxhue * (double)i / (mapsize - 1), r, g, b;  in PetscDrawCmap_Hue()  local
63     PetscHlsToRgb(hue, lightness, saturation, &r, &g, &b);  in PetscDrawCmap_Hue()
64     PetscGammaCorrect(&r, &g, &b);  in PetscDrawCmap_Hue()
65     R[i] = (unsigned char)(255 * PetscMin(r, 1.0));  in PetscDrawCmap_Hue()
72 static PetscErrorCode PetscDrawCmap_Gray(int mapsize, unsigned char R[], unsigned char G[], unsigne…  in PetscDrawCmap_Gray()  argument
75 …for (int i = 0; i < mapsize; i++) R[i] = G[i] = B[i] = (unsigned char)((255.0 * i) / (mapsize - 1)…  in PetscDrawCmap_Gray()
79 static PetscErrorCode PetscDrawCmap_Jet(int mapsize, unsigned char R[], unsigned char G[], unsigned…  in PetscDrawCmap_Jet()  argument
87     double m, r = 0, g = 0, b = 0;  in PetscDrawCmap_Jet()  local
93       r = 0;  in PetscDrawCmap_Jet()
98       r = 0;  in PetscDrawCmap_Jet()
103       r = m;  in PetscDrawCmap_Jet()
108       r = 1;  in PetscDrawCmap_Jet()
113       r = 1 - m / 2;  in PetscDrawCmap_Jet()
118     R[i] = (unsigned char)(255 * PetscMin(r, 1.0));  in PetscDrawCmap_Jet()
125 static PetscErrorCode PetscDrawCmap_Hot(int mapsize, unsigned char R[], unsigned char G[], unsigned…  in PetscDrawCmap_Hot()  argument
133     double m, r = 0, g = 0, b = 0;  in PetscDrawCmap_Hot()  local
139       r = m;  in PetscDrawCmap_Hot()
144       r = 1;  in PetscDrawCmap_Hot()
149       r = 1;  in PetscDrawCmap_Hot()
154     R[i] = (unsigned char)(255 * PetscMin(r, 1.0));  in PetscDrawCmap_Hot()
161 static PetscErrorCode PetscDrawCmap_Bone(int mapsize, unsigned char R[], unsigned char G[], unsigne…  in PetscDrawCmap_Bone()  argument
164   (void)PetscDrawCmap_Hot(mapsize, R, G, B);  in PetscDrawCmap_Bone()
167     double r = (7 * u + B[i] / 255.0) / 8;  in PetscDrawCmap_Bone()  local
169     double b = (7 * u + R[i] / 255.0) / 8;  in PetscDrawCmap_Bone()
170     R[i]     = (unsigned char)(255 * PetscMin(r, 1.0));  in PetscDrawCmap_Bone()
202 PetscErrorCode PetscDrawUtilitySetCmap(const char colormap[], int mapsize, unsigned char R[], unsig…  in PetscDrawUtilitySetCmap()  argument
223     PetscCall(PetscDrawCmapTable[id].cmap(mapsize, R, G, B));  in PetscDrawUtilitySetCmap()
228       R[i] = rgb[i][0];  in PetscDrawUtilitySetCmap()
244       SWAP(R, i, j);  in PetscDrawUtilitySetCmap()
256       PetscReal r = PetscPowReal((PetscReal)R[i] / 255, gamma);  in PetscDrawUtilitySetCmap()  local
259       R[i]        = (unsigned char)(255 * PetscMin(r, (PetscReal)1.0));  in PetscDrawUtilitySetCmap()