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null-graphics.h

/* 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.
 *
 * $URL$
 * $Id$
 *
 */

#ifndef BACKENDS_GRAPHICS_NULL_H
#define BACKENDS_GRAPHICS_NULL_H

#include "backends/graphics/graphics.h"

static const OSystem::GraphicsMode s_noGraphicsModes[] = { {0, 0, 0} };

00033 class NullGraphicsManager : GraphicsManager {
public:
      virtual ~NullGraphicsManager() {}

      bool hasFeature(OSystem::Feature f) { return false; }
      void setFeatureState(OSystem::Feature f, bool enable) {}
      bool getFeatureState(OSystem::Feature f) { return false; }

      const OSystem::GraphicsMode *getSupportedGraphicsModes() const { return s_noGraphicsModes; }
      int getDefaultGraphicsMode() const { return 0; }
      bool setGraphicsMode(int mode) { return true; }
      int getGraphicsMode() const { return 0; }
      inline Graphics::PixelFormat getScreenFormat() const {
            return Graphics::PixelFormat::createFormatCLUT8();
      }
      inline Common::List<Graphics::PixelFormat> getSupportedFormats() const {
            Common::List<Graphics::PixelFormat> list;
            list.push_back(Graphics::PixelFormat::createFormatCLUT8());
            return list;
      }
      void initSize(uint width, uint height, const Graphics::PixelFormat *format = NULL) {}
      virtual int getScreenChangeID() const { return 0; }

      void beginGFXTransaction() {}
      OSystem::TransactionError endGFXTransaction() { return OSystem::kTransactionSuccess; }

      int16 getHeight() { return 0; }
      int16 getWidth() { return 0; }
00061       void setPalette(const byte *colors, uint start, uint num) {}
00062       void grabPalette(byte *colors, uint start, uint num) {}
      void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h) {}
      Graphics::Surface *lockScreen() { return NULL; }
      void unlockScreen() {}
      void fillScreen(uint32 col) {}
      void updateScreen() {}
      void setShakePos(int shakeOffset) {}
      void setFocusRectangle(const Common::Rect& rect) {}
      void clearFocusRectangle() {}

      void showOverlay() {}
      void hideOverlay() {}
      Graphics::PixelFormat getOverlayFormat() const { return Graphics::PixelFormat(); }
      void clearOverlay() {}
      void grabOverlay(OverlayColor *buf, int pitch) {}
      void copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h) {}
      int16 getOverlayHeight() { return 0; }
      int16 getOverlayWidth() { return 0; }

      bool showMouse(bool visible) { return !visible; }
      void warpMouse(int x, int y) {}
      void setMouseCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor, int cursorTargetScale = 1, const Graphics::PixelFormat *format = NULL) {}
      void setCursorPalette(const byte *colors, uint start, uint num) {}
      void disableCursorPalette(bool disable) {}
};

#endif

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