license issue cleared

svn-id: r5813

1 files changed, 220 insertions, 0 deletions

diff --git a/backends/gp32/gp32.h b/backends/gp32/gp32.h
new file mode 100644
index 0000000000..7546a25b7b
--- /dev/null
+++ b/backends/gp32/gp32.h
@@ -0,0 +1,220 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001/2002 The ScummVM project
+ * Copyright (C) 2002 ph0x (GP32 port)
+ *
+ * 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. 
+ */
+
+
+#include "common/stdafx.h"
+#include "common/scummsys.h"
+#include "common/system.h"
+#include "common/scummsys.h"
+#include "common/stdafx.h"
+#include "common/engine.h"
+#include "scumm/saveload.h"
+#include "common/scaler.h"
+
+#include "sdl.h"
+
+class OSystem_GP32 : public OSystem {
+public:
+	// Set colors of the palette
+	void set_palette(const byte *colors, uint start, uint num);
+
+	// Set the size of the video bitmap.
+	// Typically, 320x200
+	void init_size(uint w, uint h);
+
+	// Draw a bitmap to screen.
+	// The screen will not be updated to reflect the new bitmap
+	void copy_rect(const byte *buf, int pitch, int x, int y, int w, int h);
+
+	// Moves the screen content around by the given amount of pixels
+	// but only the top height pixel rows, the rest stays untouched
+	void move_screen(int dx, int dy, int height);
+
+	// Update the dirty areas of the screen
+	void update_screen();
+
+	// Either show or hide the mouse cursor
+	bool show_mouse(bool visible);
+	
+	// Set the position of the mouse cursor
+	void set_mouse_pos(int x, int y);
+	
+	// Set the bitmap that's used when drawing the cursor.
+	void set_mouse_cursor(const byte *buf, uint w, uint h, int hotspot_x, int hotspot_y);
+	
+	// Shaking is used in SCUMM. Set current shake position.
+	void set_shake_pos(int shake_pos);
+		
+	// Get the number of milliseconds since the program was started.
+	uint32 get_msecs();
+	
+	// Delay for a specified amount of milliseconds
+	void delay_msecs(uint msecs);
+	
+	// Create a thread
+	void *create_thread(ThreadProc *proc, void *param);
+	
+	// Get the next event.
+	// Returns true if an event was retrieved.	
+	bool poll_event(Event *event);
+
+	// Set the function to be invoked whenever samples need to be generated
+	// Format is the sample type format.
+	// Only 16-bit signed mode is needed for simon & scumm
+	bool set_sound_proc(void *param, SoundProc *proc, byte format);
+	
+	// Get or set a property
+	uint32 property(int param, Property *value);
+		
+	// Poll cdrom status
+	// Returns true if cd audio is playing
+	bool poll_cdrom();
+
+	// Play cdrom audio track
+	void play_cdrom(int track, int num_loops, int start_frame, int end_frame);
+
+	// Stop cdrom audio track
+	void stop_cdrom();
+
+	// Update cdrom audio status
+	void update_cdrom();
+
+	// Add a new callback timer
+	void set_timer(int timer, int (*callback)(int));
+
+	// Mutex handling
+	void *create_mutex(void);
+	void lock_mutex(void *mutex);
+	void unlock_mutex(void *mutex);
+	void delete_mutex(void *mutex);
+
+	// Quit
+	void quit();
+	
+	// Overlay
+	void show_overlay();
+	void hide_overlay();
+	void clear_overlay();
+	void grab_overlay(int16 *buf, int pitch);
+	void copy_rect_overlay(const int16 *buf, int pitch, int x, int y, int w, int h);
+
+	static OSystem *create(int gfx_mode, bool full_screen);
+private:
+	typedef void ScalerProc(uint8 *srcPtr, uint32 srcPitch, uint8 *deltaPtr,
+								uint8 *dstPtr, uint32 dstPitch, int width, int height);
+
+	SDL_Surface *sdl_tmpscreen;   // temporary screen (for scalers/overlay)
+	SDL_Surface *sdl_hwscreen;    // hardware screen
+	bool _overlay_visible;
+
+	ScalerProc *_scaler_proc;
+
+	int TMP_SCREEN_WIDTH;
+
+	//uint msec_start;
+	//uint32 get_ticks();
+
+	///OSystem_GP32(); // eh?
+	/// ~OSystem_GP32();
+
+	// unseen game screen
+	SDL_Surface *_screen;
+	int _screenWidth, _screenHeight;
+
+	// CD Audio
+	///SDL_CD *_cdrom;
+	int cd_track, cd_num_loops, cd_start_frame, cd_end_frame;
+	uint32 cd_end_time, cd_stop_time, cd_next_second;
+
+	enum {
+		DF_WANT_RECT_OPTIM			= 1 << 0,
+		DF_UPDATE_EXPAND_1_PIXEL	= 1 << 3
+	};
+
+	bool _forceFull; // Force full redraw on next update_screen
+	int _scaleFactor;
+	int _mode;
+	bool _full_screen;
+	uint32 _mode_flags;
+
+	enum {
+		NUM_DIRTY_RECT = 100,
+
+		MAX_MOUSE_W = 40,
+		MAX_MOUSE_H = 40,
+		MAX_SCALING = 3
+	};
+
+	// Dirty rect managment
+	SDL_Rect _dirty_rect_list[100];
+	int _num_dirty_rects;
+	uint32 *_dirty_checksums;
+	bool cksum_valid;
+	int CKSUM_NUM;
+
+	// Keyboard mouse emulation
+	struct KbdMouse {	
+		int16 x, y, x_vel, y_vel, x_max, y_max, x_down_count, y_down_count;
+		uint32 last_time, delay_time, x_down_time, y_down_time;
+	} km;
+
+	struct MousePos {
+		int16 x, y, w, h;
+	};
+
+	bool _mouseVisible;
+	bool _mouseDrawn;
+	byte *_mouseData;
+	byte *_mouseBackup;
+	MousePos _mouse_cur_state;
+	MousePos _mouse_old_state;
+	int16 _mouseHotspotX;
+	int16 _mouseHotspotY;
+
+	// Shake mode
+	int _currentShakePos;
+	int _newShakePos;
+
+	// Palette data
+	SDL_Color *_currentPalette;
+	uint _paletteDirtyStart, _paletteDirtyEnd;
+
+
+	void add_dirty_rgn_auto(const byte *buf);
+	void mk_checksums(const byte *buf);
+
+	static void fill_sound(void *userdata, Uint8 * stream, int len);
+	
+	void add_dirty_rect(int x, int y, int w, int h);
+
+	void draw_mouse();
+	void undraw_mouse();
+
+	void load_gfx_mode();
+	void unload_gfx_mode();
+	void hotswap_gfx_mode();
+
+	void get_screen_image(byte *buf);	
+
+	void setup_icon();
+	void kbd_mouse();
+
+	static OSystem_GP32 *create();
+};