void setcustompalette(void) { /* colors 0-31 are an RGB mix (bits 0 and 1 red, 2 green, 3 and 4 blue) */ /* 32-63 black to red */ /* 64-95 black to green */ /* 96-127 black to yellow */ /* 128-159 black to blue */ /* 160-191 black to magenta */ /* 192-223 black to cyan */ /* 224-255 black to white */ Palette pal; int i; for (i = 0; i < 256; i++) { int r, g, b; r = g = b = 0; if ((i & 32) > 0) r = (i & 31) << 1; if ((i & 64) > 0) g = (i & 31) << 1; if ((i & 128) > 0) b = (i & 31) << 1; if (i < 32) { r = (i & 3) << 4; /* 2 bits */ g = (i & 4) << 3; /* 1 bit */ b = (i & 24) << 1; /* 2 bits */ } pal.color[i].red = r; pal.color[i].green = g; pal.color[i].blue = b; } gl_setpalette(&pal); }
/* Initialize palette values for colors 0-15 */ static void setpal(void) { int i; gl_setpalette(pal); for (i = 0; i < 16; i++) { gl_setpalettecolor(COLOR_OFFSET + i, angband_color_table[i][1] >> 2, angband_color_table[i][2] >> 2, angband_color_table[i][3] >> 2); } }