mirror of
https://github.com/libretro/scummvm.git
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264 lines
7.9 KiB
C++
264 lines
7.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "backends/base-backend.h"
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#include <graphics/surface.h>
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#include <graphics/colormasks.h>
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#include <graphics/palette.h>
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#include <ronin/soundcommon.h>
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#include "backends/timer/default/default-timer.h"
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#include "backends/audiocd/default/default-audiocd.h"
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#include "backends/fs/fs-factory.h"
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#include "audio/mixer_intern.h"
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#include "common/language.h"
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#include "common/platform.h"
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#ifdef DYNAMIC_MODULES
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#include "backends/plugins/dynamic-plugin.h"
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#endif
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#define NUM_BUFFERS 4
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#define SOUND_BUFFER_SHIFT 3
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class Interactive
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{
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public:
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virtual int key(int k, byte &shiftFlags) = 0;
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virtual void mouse(int x, int y) = 0;
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};
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#include "softkbd.h"
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class DCHardware {
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private:
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static void dc_init_hardware();
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protected:
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DCHardware() { dc_init_hardware(); }
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};
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class DCCDManager : public DefaultAudioCDManager {
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// Initialize the specified CD drive for audio playback.
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bool openCD(int drive);
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// Poll cdrom status
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// Returns true if cd audio is playing
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bool pollCD();
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// Play cdrom audio track
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void playCD(int track, int num_loops, int start_frame, int duration);
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// Stop cdrom audio track
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void stopCD();
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// Update cdrom audio status
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void updateCD();
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};
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class OSystem_Dreamcast : private DCHardware, public EventsBaseBackend, public PaletteManager, public FilesystemFactory
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#ifdef DYNAMIC_MODULES
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, public FilePluginProvider
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#endif
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{
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public:
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OSystem_Dreamcast();
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virtual void initBackend();
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// Determine whether the backend supports the specified feature.
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bool hasFeature(Feature f);
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// En-/disable the specified feature.
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void setFeatureState(Feature f, bool enable);
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// Query the state of the specified feature.
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bool getFeatureState(Feature f);
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// Retrieve a list of all graphics modes supported by this backend.
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const GraphicsMode *getSupportedGraphicsModes() const;
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// Return the ID of the 'default' graphics mode.
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int getDefaultGraphicsMode() const;
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// Switch to the specified graphics mode.
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bool setGraphicsMode(int mode);
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// Determine which graphics mode is currently active.
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int getGraphicsMode() const;
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// Set colors of the palette
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PaletteManager *getPaletteManager() { return this; }
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protected:
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// PaletteManager API
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void setPalette(const byte *colors, uint start, uint num);
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void grabPalette(byte *colors, uint start, uint num);
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public:
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// Determine the pixel format currently in use for screen rendering.
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Graphics::PixelFormat getScreenFormat() const;
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// Returns a list of all pixel formats supported by the backend.
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Common::List<Graphics::PixelFormat> getSupportedFormats() const;
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// Set the size of the video bitmap.
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// Typically, 320x200
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void initSize(uint w, uint h, const Graphics::PixelFormat *format);
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int16 getHeight() { return _screen_h; }
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int16 getWidth() { return _screen_w; }
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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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void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h);
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virtual Graphics::Surface *lockScreen();
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virtual void unlockScreen();
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// Update the dirty areas of the screen
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void updateScreen();
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// Either show or hide the mouse cursor
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bool showMouse(bool visible);
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// Move ("warp") the mouse cursor to the specified position.
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void warpMouse(int x, int y);
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// Set the bitmap that's used when drawing the cursor.
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void setMouseCursor(const byte *buf, uint w, uint h, int hotspot_x, int hotspot_y, uint32 keycolor, int cursorTargetScale, const Graphics::PixelFormat *format);
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// Replace the specified range of cursor the palette with new colors.
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void setCursorPalette(const byte *colors, uint start, uint num);
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// Shaking is used in SCUMM. Set current shake position.
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void setShakePos(int shake_pos);
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// Get the number of milliseconds since the program was started.
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uint32 getMillis();
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// Delay for a specified amount of milliseconds
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void delayMillis(uint msecs);
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// Get the current time and date. Correspond to time()+localtime().
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void getTimeAndDate(TimeDate &t) const;
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// Get the next event.
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// Returns true if an event was retrieved.
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bool pollEvent(Common::Event &event);
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// Quit
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void quit();
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// Overlay
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int16 getOverlayHeight();
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int16 getOverlayWidth();
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void showOverlay();
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void hideOverlay();
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void clearOverlay();
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void grabOverlay(OverlayColor *buf, int pitch);
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void copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h);
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virtual Graphics::PixelFormat getOverlayFormat() const { return Graphics::createPixelFormat<4444>(); }
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// Mutex handling
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MutexRef createMutex();
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void lockMutex(MutexRef mutex);
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void unlockMutex(MutexRef mutex);
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void deleteMutex(MutexRef mutex);
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// Set a window caption or any other comparable status display to the
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// given value.
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void setWindowCaption(const char *caption);
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// Modulatized backend
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Audio::Mixer *getMixer() { return _mixer; }
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// Extra SoftKbd support
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void mouseToSoftKbd(int x, int y, int &rx, int &ry) const;
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// Filesystem
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AbstractFSNode *makeRootFileNode() const;
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AbstractFSNode *makeCurrentDirectoryFileNode() const;
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AbstractFSNode *makeFileNodePath(const Common::String &path) const;
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private:
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Audio::MixerImpl *_mixer;
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SoftKeyboard _softkbd;
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int _ms_cur_x, _ms_cur_y, _ms_cur_w, _ms_cur_h, _ms_old_x, _ms_old_y;
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int _ms_hotspot_x, _ms_hotspot_y, _ms_visible, _devpoll, _last_screen_refresh;
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int _current_shake_pos, _screen_w, _screen_h;
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int _overlay_x, _overlay_y;
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unsigned char *_ms_buf;
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uint32 _ms_keycolor;
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bool _overlay_visible, _overlay_dirty, _screen_dirty;
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int _screen_buffer, _overlay_buffer, _mouse_buffer;
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bool _aspect_stretch, _softkbd_on, _enable_cursor_palette;
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float _overlay_fade, _xscale, _yscale, _top_offset;
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int _softkbd_motion;
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unsigned char *screen;
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unsigned short *mouse;
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unsigned short *overlay;
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void *screen_tx[NUM_BUFFERS];
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void *mouse_tx[NUM_BUFFERS];
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void *ovl_tx[NUM_BUFFERS];
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unsigned short palette[256], cursor_palette[256];
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Graphics::Surface _framebuffer;
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int _screenFormat, _mouseFormat;
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int temp_sound_buffer[RING_BUFFER_SAMPLES>>SOUND_BUFFER_SHIFT];
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uint initSound();
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void checkSound();
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void updateScreenTextures(void);
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void updateScreenPolygons(void);
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void maybeRefreshScreen(void);
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void drawMouse(int xdraw, int ydraw, int w, int h,
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unsigned char *buf, bool visible);
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void setScaling();
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Common::SaveFileManager *createSavefileManager();
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Common::SeekableReadStream *createConfigReadStream();
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Common::WriteStream *createConfigWriteStream();
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void logMessage(LogMessageType::Type type, const char *message);
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Common::String getSystemLanguage() const;
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#ifdef DYNAMIC_MODULES
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class DCPlugin;
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protected:
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Plugin* createPlugin(const Common::FSNode &node) const;
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bool isPluginFilename(const Common::FSNode &node) const;
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#endif
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};
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extern int handleInput(struct mapledev *pad,
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int &mouse_x, int &mouse_y,
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byte &shiftFlags, Interactive *inter = NULL);
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extern bool selectGame(char *&, char *&, Common::Language &, Common::Platform &, class Icon &);
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