diff options
Diffstat (limited to 'backends/sdl/sdl-common.h')
| -rw-r--r-- | backends/sdl/sdl-common.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/backends/sdl/sdl-common.h b/backends/sdl/sdl-common.h new file mode 100644 index 0000000000..ae7b64306e --- /dev/null +++ b/backends/sdl/sdl-common.h @@ -0,0 +1,197 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2001/2002 The ScummVM project + * + * 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. + * + * $Header$ + * + */ + +#ifndef SDL_COMMON_H +#define SDL_COMMON_H + +#include "stdafx.h" +#include "scummsys.h" +#include "system.h" + +#include <SDL.h> +#include <SDL_thread.h> + +class OSystem_SDL_Common : public OSystem { +public: + // Set colors of the palette + void set_palette(const byte *colors, uint start, uint num) = 0; + + // 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); + + // Update the dirty areas of the screen + void update_screen() = 0; + + // 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 function that generates samples + bool set_sound_proc(void *param, SoundProc *proc, byte sound); + + // 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(); + + // Quit + void quit(); + + // Set a parameter + uint32 property(int param, Property *value); + + // Add a 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); + + static OSystem *create(int gfx_mode, bool full_screen); + +protected: + typedef void TwoXSaiProc(uint8 *srcPtr, uint32 srcPitch, uint8 *deltaPtr, + uint8 *dstPtr, uint32 dstPitch, int width, int height); + + SDL_Surface *sdl_screen; // unseen game screen + SDL_Surface *sdl_tmpscreen; // temporary screen (for 2xsai) + SDL_CD *cdrom; + + enum { + DF_WANT_RECT_OPTIM = 1 << 0, + DF_REAL_8BIT = 1 << 1, + DF_SEPARATE_TEMPSCREEN = 1 << 2, + DF_UPDATE_EXPAND_1_PIXEL = 1 << 3 + }; + + int _mode; + bool _full_screen; + bool _mouse_visible; + bool _mouse_drawn; + uint32 _mode_flags; + + bool force_full; //Force full redraw on next update_screen + bool cksum_valid; + + enum { + NUM_DIRTY_RECT = 100, + + MAX_MOUSE_W = 40, + MAX_MOUSE_H = 40, + MAX_SCALING = 3 + }; + + int SCREEN_WIDTH, SCREEN_HEIGHT, CKSUM_NUM; + SDL_Rect *dirty_rect_list; + int num_dirty_rects; + uint32 *dirty_checksums; + + int scaling; + + /* CD Audio */ + int cd_track, cd_num_loops, cd_start_frame, cd_end_frame; + Uint32 cd_end_time, cd_stop_time, cd_next_second; + + /* 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; + }; + + byte *_mouse_data; + byte *_mouse_backup; + MousePos _mouse_cur_state; + MousePos _mouse_old_state; + int16 _mouse_hotspot_x; + int16 _mouse_hotspot_y; + int _current_shake_pos; + int _new_shake_pos; + TwoXSaiProc *_sai_func; + SDL_Color *_cur_pal; + + uint _palette_changed_first, _palette_changed_last; + + OSystem_SDL_Common() : _current_shake_pos(0), _new_shake_pos(0) {} + + 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(); + + virtual void load_gfx_mode() = 0; + virtual void unload_gfx_mode() = 0; + virtual void hotswap_gfx_mode() = 0; + + void get_320x200_image(byte *buf); + + void setup_icon(); + void kbd_mouse(); + + static OSystem_SDL_Common *create(); +}; + + +#endif |