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engines/asylum/system/graphics.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 ASYLUM_SYSTEM_GRAPHICS_H
+#define ASYLUM_SYSTEM_GRAPHICS_H
+
+#include "common/rect.h"
+#include "common/array.h"
+
+#include "graphics/surface.h"
+
+#include "asylum/shared.h"
+
+namespace Asylum {
+
+class AsylumEngine;
+
+struct GraphicFrame {
+	int32 size;
+	int32 offset;
+
+	int16 x;
+	int16 y;
+	Graphics::Surface surface;
+
+	uint16 getWidth() { return surface.w; }
+	uint16 getHeight() { return surface.h; }
+
+	GraphicFrame() {
+		size = offset = 0;
+		x = y = 0;
+	}
+
+	Common::Rect getRect() {
+		return Common::Rect(x, y, x + getWidth(), y + getHeight());
+	}
+};
+
+// Graphic resources can be sprites or images, with multiple frames
+class GraphicResource {
+public:
+	struct ResourceData {
+		char tag[4];
+		uint32 flags;
+		// contentOffset
+		uint32 field_C;
+		uint32 field_10;
+		uint32 field_14;
+		// frameCount
+		uint16 maxWidth;
+		// Offsets
+
+		ResourceData() {
+			memset(&tag, 0, sizeof(tag));
+			flags = 0;
+			field_C = 0;
+			field_10 = 0;
+			field_14 = 0;
+			maxWidth = 0;
+		}
+	};
+
+	GraphicResource(AsylumEngine *engine);
+	GraphicResource(AsylumEngine *engine, ResourceId id);
+	~GraphicResource();
+
+	bool load(ResourceId id);
+
+	/**
+	 * Copies an animation frame to the target buffer
+	 */
+	void copyFrameToDest(byte *dest, uint32 frame);
+
+	/**
+	 * Copies a sprite to the target buffer, with transparency
+	 */
+	void copySpriteToDest(byte *dest, uint32 frame);
+
+	GraphicFrame *getFrame(uint32 frame);
+	ResourceId    getResourceId() { return _resourceId; }
+	uint32        count()         { return _frames.size(); }
+
+	// FIXME: flags are coordinates for the sound origin!
+	ResourceData  getData()       { return _data; }
+
+	// Helper functions
+	static uint32 getFrameCount(AsylumEngine *engine, ResourceId id);
+	static Common::Rect getFrameRect(AsylumEngine *engine, ResourceId id, uint32 index);
+
+private:
+	AsylumEngine *_vm;
+
+	ResourceId _resourceId;
+	ResourceData _data;
+	Common::Array<GraphicFrame> _frames;
+
+	void init(byte *data, int32 size);
+	void clear();
+};
+
+} // end of namespace Asylum
+
+#endif // ASYLUM_SYSTEM_GRAPHICS_H