Initial commit

engines/agi/preagi/preagi.h

@@ -0,0 +1,120 @@
+/* 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 AGI_PREAGI_PREAGI_H
+#define AGI_PREAGI_PREAGI_H
+
+#include "agi/agi.h"
+
+namespace Audio {
+class PCSpeaker;
+}
+
+namespace Agi {
+
+// default attributes
+#define IDA_DEFAULT     0x0F
+#define IDA_DEFAULT_REV 0xF0
+
+#define IDI_SND_OSCILLATOR_FREQUENCY    1193180
+#define IDI_SND_TIMER_RESOLUTION        0.0182
+
+#define kColorDefault 0x1337
+
+#define IDI_MAX_ROW_PIC 20
+
+enum SelectionTypes {
+	kSelYesNo,
+	kSelNumber,
+	kSelSpace,
+	kSelAnyKey,
+	kSelBackspace
+};
+
+// Options for controlling behavior during waits and sound playback
+enum WaitOptions {
+	kWaitBlock          = 0x00, // no event processing, cannot be interrupted
+	kWaitProcessEvents  = 0x01, // process events, stops on quit
+	kWaitAllowInterrupt = 0x03  // process events, stops on input or quit
+};
+
+class PreAgiEngine : public AgiBase {
+	int _gameId;
+
+protected:
+	void initialize() override;
+
+	int getKeypress() override { return 0; }
+	bool isKeypress() override { return false; }
+	void clearKeyQueue() override {}
+
+	PreAgiEngine(OSystem *syst, const AGIGameDescription *gameDesc);
+	~PreAgiEngine() override;
+	int getGameId() const { return _gameId; }
+
+	void clearImageStack() override {}
+	void recordImageStackCall(uint8 type, int16 p1, int16 p2, int16 p3,
+	                          int16 p4, int16 p5, int16 p6, int16 p7) override {}
+	void replayImageStackCall(uint8 type, int16 p1, int16 p2, int16 p3,
+	                          int16 p4, int16 p5, int16 p6, int16 p7) override {}
+	void releaseImageStack() override {}
+	int saveGame(const Common::String &fileName, const Common::String &saveName) { return -1; }
+	int loadGame(const Common::String &fileName, bool checkId = true) { return -1; }
+
+	// Game
+	Common::String getTargetName() const { return _targetName; }
+
+	// Screen
+	void clearScreen(int attr, bool overrideDefault = true);
+	void clearGfxScreen(int attr);
+	void setDefaultTextColor(int attr) { _defaultColor = attr; }
+	byte getWhite() const;
+
+	// Keyboard
+	int getSelection(SelectionTypes type);
+
+	// Random number between 1 and max. Example: rnd(2) returns 1 or 2.
+	int rnd(int max);
+
+	// Text
+	void drawStr(int row, int col, int attr, const char *buffer);
+	void clearTextArea();
+	void clearRow(int row);
+	static void XOR80(char *buffer);
+	void printStr(const char *szMsg);
+	void printStrXOR(char *szMsg);
+
+	// Saved Games
+	Common::SaveFileManager *getSaveFileMan() { return _saveFileMan; }
+
+	bool playSpeakerNote(int16 frequency, int32 length, WaitOptions options);
+	bool wait(uint32 delay, WaitOptions options = kWaitProcessEvents);
+
+private:
+	int _defaultColor;
+
+	Audio::PCSpeaker *_speaker;
+};
+
+} // End of namespace Agi
+
+
+#endif