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engines/saga/render.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/>.
+ *
+ */
+
+// Main rendering loop - private header
+
+#ifndef SAGA_RENDER_H
+#define SAGA_RENDER_H
+
+#include "saga/sprite.h"
+#include "saga/gfx.h"
+#include "common/list.h"
+
+namespace Saga {
+
+enum RENDER_FLAGS {
+	RF_RENDERPAUSE      = (1 << 0),
+	RF_MAP              = (1 << 1),
+	RF_DISABLE_ACTORS   = (1 << 2),
+	RF_DEMO_SUBST       = (1 << 3)
+};
+
+// Extra render flags used for debugging
+#ifdef SAGA_DEBUG
+enum RENDER_DEBUG_FLAGS {
+	RF_SHOW_FPS         = (1 << 4),
+	RF_PALETTE_TEST     = (1 << 5),
+	RF_TEXT_TEST        = (1 << 6),
+	RF_OBJECTMAP_TEST   = (1 << 7),
+	RF_ACTOR_PATH_TEST  = (1 << 8)
+};
+#endif
+
+class Render {
+public:
+	Render(SagaEngine *vm, OSystem *system);
+	~Render();
+	bool initialized();
+	void drawScene();
+
+	unsigned int getFlags() const {
+		return _flags;
+	}
+
+	void setFlag(unsigned int flag) {
+		_flags |= flag;
+	}
+
+	void clearFlag(unsigned int flag) {
+		_flags &= ~flag;
+	}
+
+	void toggleFlag(unsigned int flag) {
+		_flags ^= flag;
+	}
+
+	Surface *getBackGroundSurface() {
+		return &_backGroundSurface;
+	}
+
+	void addDirtyRect(Common::Rect rect);
+
+	void clearDirtyRects() {
+		_dirtyRects.clear();
+	}
+
+	void setFullRefresh(bool flag) {
+		_fullRefresh = flag;
+	}
+
+	bool isFullRefresh() {
+		return _fullRefresh;
+	}
+
+	/**
+	 * ECS has only 32-color palette. ITE switches palette
+	 * after line 137 on most screens but not on intro. Set
+	 * whether to change palette after line 137.
+	 */
+	void setSplitScreen(bool flag) {
+		_splitScreen = flag;
+	}
+
+	void maskSplitScreen();
+	void drawDirtyRects();
+	void scale2xAndMergeOverlay(int x, int y, int w, int h);
+	void restoreChangedRects();
+
+private:
+#ifdef SAGA_DEBUG
+	static void fpsTimerCallback(void *refCon);
+	void fpsTimer();
+	unsigned int _fps;
+	unsigned int _renderedFrameCount;
+#endif
+
+	SagaEngine *_vm;
+	OSystem *_system;
+	bool _initialized;
+	Common::List<Common::Rect> _dirtyRects;
+	bool _fullRefresh;
+	bool _dualSurface;
+	bool _splitScreen;
+
+	// Module data
+	Surface _backGroundSurface;
+	Surface _mergeSurface;
+
+	uint32 _flags;
+};
+
+} // End of namespace Saga
+
+#endif