aboutsummaryrefslogtreecommitdiff
path: root/backends/platform/dc/dc.h
blob: 4893b5a37ccfed9db19aa8993a69f2593bd30f9a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#include "backends/base-backend.h"
#include <graphics/surface.h>
#include <graphics/colormasks.h>
#include <ronin/soundcommon.h>
#include "backends/timer/default/default-timer.h"
#include "backends/fs/fs-factory.h"
#include "sound/mixer_intern.h"

#define NUM_BUFFERS 4
#define SOUND_BUFFER_SHIFT 3

class Interactive
{
 public:
  virtual int key(int k, byte &shiftFlags) = 0;
  virtual void mouse(int x, int y) = 0;
};

#include "softkbd.h"

class OSystem_Dreamcast : public BaseBackend, public FilesystemFactory {

 public:
  OSystem_Dreamcast();

  virtual void initBackend();

  // Determine whether the backend supports the specified feature.
  bool hasFeature(Feature f);

  // En-/disable the specified feature.
  void setFeatureState(Feature f, bool enable);

  // Query the state of the specified feature.
  bool getFeatureState(Feature f);

  // Retrieve a list of all graphics modes supported by this backend.
  const GraphicsMode *getSupportedGraphicsModes() const;

  // Return the ID of the 'default' graphics mode.
  int getDefaultGraphicsMode() const;

  // Switch to the specified graphics mode.
  bool setGraphicsMode(int mode);

  // Determine which graphics mode is currently active.
  int getGraphicsMode() const;

  // Set colors of the palette
  void setPalette(const byte *colors, uint start, uint num);
  void grabPalette(byte *colors, uint start, uint num);

  // Set the size of the video bitmap.
  // Typically, 320x200
  void initSize(uint w, uint h);
  int16 getHeight() { return _screen_h; }
  int16 getWidth() { return _screen_w; }

  // Draw a bitmap to screen.
  // The screen will not be updated to reflect the new bitmap
  void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h);

	virtual Graphics::Surface *lockScreen();
	virtual void unlockScreen();

  // Update the dirty areas of the screen
  void updateScreen();

  // Either show or hide the mouse cursor
  bool showMouse(bool visible);

  // Move ("warp") the mouse cursor to the specified position.
  void warpMouse(int x, int y);

  // Set the bitmap that's used when drawing the cursor.
  void setMouseCursor(const byte *buf, uint w, uint h, int hotspot_x, int hotspot_y, byte keycolor, int cursorTargetScale);

  // Replace the specified range of cursor the palette with new colors.
  void setCursorPalette(const byte *colors, uint start, uint num);

  // Disable or enable cursor palette.
  void disableCursorPalette(bool disable);

  // Shaking is used in SCUMM. Set current shake position.
  void setShakePos(int shake_pos);

  // Get the number of milliseconds since the program was started.
  uint32 getMillis();

  // Delay for a specified amount of milliseconds
  void delayMillis(uint msecs);

  // Get the current time and date. Correspond to time()+localtime().
  void getTimeAndDate(struct tm &t) const;

  // Get the next event.
  // Returns true if an event was retrieved.
  bool pollEvent(Common::Event &event);

  // Determine the output sample rate. Audio data provided by the sound
  // callback will be played using this rate.
  int getOutputSampleRate() const;

  // Initialise the specified CD drive for audio playback.
  bool openCD(int drive);

  // Poll cdrom status
  // Returns true if cd audio is playing
  bool pollCD();

  // Play cdrom audio track
  void playCD(int track, int num_loops, int start_frame, int duration);

  // Stop cdrom audio track
  void stopCD();

  // Update cdrom audio status
  void updateCD();

  // Quit
  void quit();

  // Overlay
  int16 getOverlayHeight();
  int16 getOverlayWidth();
  void showOverlay();
  void hideOverlay();
  void clearOverlay();
  void grabOverlay(int16 *buf, int pitch);
  void copyRectToOverlay(const int16 *buf, int pitch, int x, int y, int w, int h);
  virtual Graphics::PixelFormat getOverlayFormat() const { return Graphics::createPixelFormat<4444>(); }

  // Mutex handling
  MutexRef createMutex();
  void lockMutex(MutexRef mutex);
  void unlockMutex(MutexRef mutex);
  void deleteMutex(MutexRef mutex);

  // Set a window caption or any other comparable status display to the
  // given value.
  void setWindowCaption(const char *caption);

  // Modulatized backend
  Common::SaveFileManager *getSavefileManager() { return _savefile; }
  Audio::Mixer *getMixer() { return _mixer; }
  Common::TimerManager *getTimerManager() { return _timer; }

  // Extra SoftKbd support
  void mouseToSoftKbd(int x, int y, int &rx, int &ry) const;

  // Filesystem
  FilesystemFactory *getFilesystemFactory() { return this; }
  AbstractFSNode *makeRootFileNode() const;
  AbstractFSNode *makeCurrentDirectoryFileNode() const;
  AbstractFSNode *makeFileNodePath(const Common::String &path) const;

 private:

  Common::SaveFileManager *_savefile;
  Audio::MixerImpl *_mixer;
  DefaultTimerManager *_timer;
  SoftKeyboard _softkbd;

  int _ms_cur_x, _ms_cur_y, _ms_cur_w, _ms_cur_h, _ms_old_x, _ms_old_y;
  int _ms_hotspot_x, _ms_hotspot_y, _ms_visible, _devpoll;
  int _current_shake_pos, _screen_w, _screen_h;
  int _overlay_x, _overlay_y;
  unsigned char *_ms_buf;
  unsigned char _ms_keycolor;
  bool _overlay_visible, _overlay_dirty, _screen_dirty;
  int _screen_buffer, _overlay_buffer, _mouse_buffer;
  bool _aspect_stretch, _softkbd_on, _enable_cursor_palette;
  float _overlay_fade, _xscale, _yscale, _top_offset;
  int _softkbd_motion;

  unsigned char *screen;
  unsigned short *mouse;
  unsigned short *overlay;
  void *screen_tx[NUM_BUFFERS];
  void *mouse_tx[NUM_BUFFERS];
  void *ovl_tx[NUM_BUFFERS];
  unsigned short palette[256], cursor_palette[256];

  Graphics::Surface _framebuffer;

  int temp_sound_buffer[RING_BUFFER_SAMPLES>>SOUND_BUFFER_SHIFT];

  uint initSound();
  void checkSound();

  void drawMouse(int xdraw, int ydraw, int w, int h,
		 unsigned char *buf, bool visible);

  void setScaling();

  Common::SaveFileManager *createSavefileManager();
};


extern int handleInput(struct mapledev *pad,
		       int &mouse_x, int &mouse_y,
		       byte &shiftFlags, Interactive *inter = NULL);
extern bool selectGame(char *&, char *&, class Icon &);