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engines/m4/graphics/gr_sprite.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 M4_GRAPHICS_GR_SPRITE_H
+#define M4_GRAPHICS_GR_SPRITE_H
+
+#include "m4/m4_types.h"
+
+namespace M4 {
+
+enum {
+	NO_COMPRESS     = 0x00,
+	RLE8            = 0x01,
+	SHADOW			= 0x80
+};
+
+struct DrawRequest {
+	Buffer *Src = nullptr;		// sprite source buffer
+	Buffer *Dest = nullptr;		// destination buffer
+	int32 x = 0;			// x position relative	to Destination(0, 0)
+	int32 y = 0;			// y position relative	to Destination(0, 0)
+	int32 scaleX = 0;		// x scale factor (can be negative for reverse draw)
+	int32 scaleY = 0;		// y scale factor (can't be negative)
+	uint8 *depthCode = nullptr;	// depth code array for	destination (doesn't care if srcDepth is 0)
+	uint8 *Pal = nullptr;			// palette for shadow draw (doesn't care if SHADOW bit is not set in Src.encoding)
+	uint8 *ICT = nullptr;		// Inverse Color Table (doesn't care if SHADOW bit is not set in Src.encoding)
+	uint8 srcDepth = 0;		// depth code for source (0 if no depth processing)
+};
+
+
+uint32 gr_sprite_RLE8_encode(Buffer *Source, Buffer *Dest);
+uint8 gr_sprite_draw(DrawRequest *DrawReq);
+
+} // namespace M4
+
+#endif