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engines/startrek/bitmap.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 STARTREK_BITMAP_H
+#define STARTREK_BITMAP_H
+
+#include "common/ptr.h"
+#include "common/stream.h"
+#include "common/memstream.h"
+
+namespace StarTrek {
+
+struct Bitmap {
+	int16 xoffset;
+	int16 yoffset;
+	int16 width;
+	int16 height;
+	byte *pixels;
+
+	Bitmap(Common::MemoryReadStreamEndian *stream, bool closeStream = true);
+	Bitmap(const Bitmap &bitmap);
+	Bitmap(int w, int h);
+	~Bitmap();
+
+protected:
+	int32 pixelsArraySize;
+	Bitmap() : xoffset(0), yoffset(0), width(0), height(0), pixels(nullptr), pixelsArraySize(0) {}
+};
+
+
+/**
+ * TextBitmap is the same as Bitmap, except it stores character indices in its "pixels"
+ * array instead of actual pixels.
+ * A consequence of this is that the pixels array is smaller than otherwise expected
+ * (since width/height still reflect the actual size when drawn).
+ */
+struct TextBitmap : Bitmap {
+	TextBitmap(int w, int h);
+};
+
+
+/**
+ * StubBitmap is a bitmap without any actual pixel data. Used as a stub for the
+ * "starfield" sprite, which is always in draw mode 1 (invisible), so it never gets drawn;
+ * however, it does trigger refreshes on the background in that area, so the game can draw
+ * on the background layer manually.
+ */
+struct StubBitmap : Bitmap {
+	StubBitmap(int w, int h);
+};
+
+} // End of namespace StarTrek
+
+#endif