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/* ScummVM - Scumm Interpreter
* Dreamcast port
* Copyright (C) 2002-2004 Marcus Comstedt
*
* 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.
*
* $Header$
*
*/
#include <common/system.h>
#include <ronin/soundcommon.h>
#define NUM_BUFFERS 4
class OSystem_Dreamcast : public OSystem {
public:
OSystem_Dreamcast();
// 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. For example, test whether
bool getFeatureState(Feature f);
// Retrieve a list of all graphics modes supported by this backend.
const GraphicsMode *getSupportedGraphicsModes() const;
// Switch to the specified graphics mode.
bool setGraphicsMode(int mode);
// Switch to the specified graphics mode.
bool setGraphicsMode(const char *name);
// Determine which graphics mode is currently active.
int getGraphicsMode() const;
// Set colors of the palette
void setPalette(const byte *colors, uint start, uint num);
// Set the size of the video bitmap.
// Typically, 320x200
void initSize(uint w, uint h);
int16 get_height() { return _screen_h; }
int16 get_width() { return _screen_w; }
// 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);
void move_screen(int dx, int dy, int height);
// Update the dirty areas of the screen
void updateScreen();
// Either show or hide the mouse cursor
bool show_mouse(bool visible);
// Move ("warp") the mouse cursor to the specified position.
void warp_mouse(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);
// Get the next event.
// Returns true if an event was retrieved.
bool poll_event(Event *event);
// Set function that generates samples
bool setSoundCallback(SoundProc proc, void *param);
void clearSoundCallback();
// 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 poll_cdrom();
// Play cdrom audio track
void play_cdrom(int track, int num_loops, int start_frame, int duration);
// Stop cdrom audio track
void stop_cdrom();
// Update cdrom audio status
void update_cdrom();
// 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);
// Add a callback timer
void set_timer(TimerProc callback, int timer);
// 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);
// Savefile handling
SaveFileManager *get_savefile_manager();
static OSystem *create();
private:
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;
SoundProc _sound_proc;
void *_sound_proc_param;
bool _overlay_visible, _overlay_dirty, _screen_dirty;
int _screen_buffer, _overlay_buffer, _mouse_buffer;
bool _hires, _hires_mouse;
float _overlay_fade;
uint32 _timer_duration, _timer_next_expiry;
bool _timer_active;
int (*_timer_callback) (int);
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];
short temp_sound_buffer[RING_BUFFER_SAMPLES];
void checkSound();
void drawMouse(int xdraw, int ydraw, int w, int h,
unsigned char *buf, bool visible);
};
extern int handleInput(struct mapledev *pad,
int &mouse_x, int &mouse_y,
byte &shiftFlags);
extern void initSound();
extern bool selectGame(char *&, char *&, class Icon &);
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