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engines/ultima/ultima8/gfx/pal_transforms.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef ULTIMA8_GFX_PAL_TRANSFORMS_H
+#define ULTIMA8_GFX_PAL_TRANSFORMS_H
+
+namespace Ultima {
+namespace Ultima8 {
+
+enum PalTransforms {
+	// Normal untransformed palette
+	Transform_None      = 0,
+
+	// O[i] = I[r]*0.375 + I[g]*0.5 + I[b]*0.125;
+	Transform_Greyscale = 1,
+
+	// O[r] = 0;
+	Transform_NoRed     = 2,
+
+	// O[i] = (I[i] + Grey)*0.25 + 0.1875;
+	Transform_RainStorm = 3,
+
+	// O[r] = (I[r] + Grey)*0.5 + 0.1875;
+	// O[g] = I[g]*0.5 + Grey*0.25;
+	// O[b] = I[b]*0.5;
+	Transform_FireStorm = 4,
+
+	// O[i] = I[i]*2 -Grey;
+	Transform_Saturate  = 5,
+
+	// O[g] = I[r]; O[b] = I[g]; O[r] = I[b];
+	Transform_GBR       = 6,
+
+	// O[b] = I[r]; O[r] = I[g]; O[g] = I[b];
+	Transform_BRG       = 7,
+
+	// Any value beyond this is invalid in savegames.
+	Transform_Invalid 	= 8
+};
+
+} // End of namespace Ultima8
+} // End of namespace Ultima
+
+#endif