mirror of
https://github.com/libretro/scummvm.git
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273 lines
6.7 KiB
C++
273 lines
6.7 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001/2002 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#ifndef COMMON_SYSTEM_H
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#define COMMON_SYSTEM_H
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#include "scummsys.h"
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#include "savefile.h"
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class Timer;
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// Interface to the ScummVM backend
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class OSystem {
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public:
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typedef int ThreadProc(void *param);
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typedef void SoundProc(void *param, byte *buf, int len);
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struct Event {
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int event_code;
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struct {
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uint16 ascii;
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byte flags;
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int keycode;
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} kbd;
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struct {
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int x,y;
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} mouse;
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};
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enum {
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EVENT_KEYDOWN = 1,
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EVENT_KEYUP = 2,
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EVENT_MOUSEMOVE = 3,
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EVENT_LBUTTONDOWN = 4,
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EVENT_LBUTTONUP = 5,
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EVENT_RBUTTONDOWN = 6,
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EVENT_RBUTTONUP = 7,
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EVENT_WHEELUP = 8,
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EVENT_WHEELDOWN = 9
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};
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enum {
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KBD_CTRL = 1,
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KBD_ALT = 2,
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KBD_SHIFT = 4
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};
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enum {
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PROP_TOGGLE_FULLSCREEN = 1,
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PROP_SET_WINDOW_CAPTION = 2,
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PROP_OPEN_CD = 3,
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PROP_SET_GFX_MODE = 4,
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PROP_SHOW_DEFAULT_CURSOR = 5,
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PROP_GET_SAMPLE_RATE = 6,
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PROP_GET_FULLSCREEN = 7,
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PROP_GET_FMOPL_ENV_BITS = 8,
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PROP_GET_FMOPL_EG_ENT = 9
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};
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union Property {
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const char *caption;
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int cd_num;
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int gfx_mode;
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bool show_cursor;
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};
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enum {
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SOUND_8BIT = 0,
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SOUND_16BIT = 1
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};
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// Set colors of the palette
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virtual void set_palette(const byte *colors, uint start, uint num) = 0;
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// Set the size of the video bitmap.
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// Typically, 320x200
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virtual void init_size(uint w, uint h) = 0;
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// Draw a bitmap to screen.
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// The screen will not be updated to reflect the new bitmap
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virtual void copy_rect(const byte *buf, int pitch, int x, int y, int w, int h) = 0;
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// Moves the screen content around by the given amount of pixels
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// but only the top height pixel rows, the rest stays untouched
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virtual void move_screen(int dx, int dy, int height) = 0;
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// Update the dirty areas of the screen
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virtual void update_screen() = 0;
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// Either show or hide the mouse cursor
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virtual bool show_mouse(bool visible) = 0;
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// Set the position of the mouse cursor
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virtual void set_mouse_pos(int x, int y) = 0;
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// Warp the mouse cursor. Where set_mouse_pos() only informs the
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// backend of the mouse cursor's current position, this function
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// actually moves the cursor to the specified position.
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virtual void warp_mouse(int x, int y) = 0;
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// Set the bitmap that's used when drawing the cursor.
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virtual void set_mouse_cursor(const byte *buf, uint w, uint h, int hotspot_x, int hotspot_y) = 0;
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// Shaking is used in SCUMM. Set current shake position.
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virtual void set_shake_pos(int shake_pos) = 0;
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// Get the number of milliseconds since the program was started.
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virtual uint32 get_msecs() = 0;
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// Delay for a specified amount of milliseconds
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virtual void delay_msecs(uint msecs) = 0;
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// Create a thread
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virtual void *create_thread(ThreadProc *proc, void *param) = 0;
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// Get the next event.
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// Returns true if an event was retrieved.
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virtual bool poll_event(Event *event) = 0;
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// Set the function to be invoked whenever samples need to be generated
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// Format is the sample type format.
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// Only 16-bit signed mode is needed for simon & scumm
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virtual bool set_sound_proc(void *param, SoundProc *proc, byte format) = 0;
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// Get or set a property
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virtual uint32 property(int param, Property *value) = 0;
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// Poll cdrom status
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// Returns true if cd audio is playing
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virtual bool poll_cdrom() = 0;
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// Play cdrom audio track
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virtual void play_cdrom(int track, int num_loops, int start_frame, int end_frame) = 0;
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// Stop cdrom audio track
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virtual void stop_cdrom() = 0;
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// Update cdrom audio status
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virtual void update_cdrom() = 0;
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// Add a new callback timer
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virtual void set_timer(int timer, int (*callback)(int)) = 0;
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// Mutex handling
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virtual void *create_mutex(void) = 0;
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virtual void lock_mutex(void *mutex) = 0;
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virtual void unlock_mutex(void *mutex) = 0;
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virtual void delete_mutex(void *mutex) = 0;
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// Quit
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virtual void quit() = 0;
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// Overlay
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virtual void show_overlay() = 0;
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virtual void hide_overlay() = 0;
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virtual void clear_overlay() = 0;
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virtual void grab_overlay(int16 *buf, int pitch) = 0;
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virtual void copy_rect_overlay(const int16 *buf, int pitch, int x, int y, int w, int h) = 0;
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// Low-level graphics access
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virtual int16 get_height() {return 200;}
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virtual int16 get_width() {return 320;}
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// Methods that convert RBG to/from colors suitable for the overlay.
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// Default implementation assumes 565 mode.
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virtual int16 RBGToColor(uint8 r, uint8 g, uint8 b)
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{
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return ((((r>>3)&0x1F) << 11) | (((g>>2)&0x3F) << 5) | ((b>>3)&0x1F));
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}
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virtual void colorToRBG(int16 color, uint8 &r, uint8 &g, uint8 &b)
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{
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r = (((color>>11)&0x1F) << 3);
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g = (((color>>5)&0x3F) << 2);
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b = ((color&0x1F) << 3);
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}
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// Savefile management
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virtual SaveFileManager *get_savefile_manager()
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{
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return new SaveFileManager();
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}
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};
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/* Factory functions. This means we don't have to include the
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* OSystem_SDL header file. (which in turn would require the SDL headers)
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*/
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/* OSystem_SDL */
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extern OSystem *OSystem_SDL_create(int gfx_driver, bool full_screen);
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extern OSystem *OSystem_NULL_create();
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extern OSystem *OSystem_MorphOS_create(int game_id, int gfx_driver, bool full_screen);
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extern OSystem *OSystem_Dreamcast_create();
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extern OSystem *OSystem_WINCE3_create();
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extern OSystem *OSystem_X11_create();
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extern OSystem *OSystem_MAC_create(int gfx_mode, bool full_screen);
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extern OSystem *OSystem_GP32_create(int gfx_mode, bool full_screen); //ph0x
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enum {
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GFX_NORMAL = 0,
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GFX_DOUBLESIZE = 1,
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GFX_TRIPLESIZE = 2,
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GFX_2XSAI = 3,
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GFX_SUPER2XSAI = 4,
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GFX_SUPEREAGLE = 5,
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GFX_ADVMAME2X = 6,
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GFX_TV2X = 7
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};
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/* Graphics drivers */
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enum {
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GD_NULL = 0,
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GD_SDL,
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GD_X,
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GD_MORPHOS,
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GD_WINCE,
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GD_MAC,
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GD_DC,
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GD_GP32 //ph0x
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};
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/* Languages */
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enum {
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EN_USA = 0,
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DE_DEU = 1,
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FR_FRA = 2,
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IT_ITA = 3,
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PT_BRA = 4,
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ES_ESP = 5,
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JA_JPN = 6,
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ZH_TWN = 7,
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KO_KOR = 8,
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HB_HEB = 20
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};
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enum {
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#ifdef _WIN32_WCE
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SAMPLES_PER_SEC_OLD = 11025,
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SAMPLES_PER_SEC_NEW = 22050
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#else
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SAMPLES_PER_SEC = 22050
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#endif
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};
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enum {
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FMOPL_ENV_BITS_HQ = 16,
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FMOPL_ENV_BITS_LQ = 8,
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FMOPL_EG_ENT_HQ = 4096,
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FMOPL_EG_ENT_LQ = 128
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};
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#endif
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