null.hpp

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/*
 * This file is part of OpenTTD.
 * OpenTTD 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, version 2.
 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef BLITTER_NULL_HPP
#define BLITTER_NULL_HPP
 
#include "factory.hpp"
 
class Blitter_Null : public Blitter {
public:
  uint8 GetScreenDepth() override { return 0; }
  void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) override {};
  void DrawColourMappingRect(void *dst, int width, int height, PaletteID pal) override {};
  Sprite *Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator) override;
  void *MoveTo(void *video, int x, int y) override { return nullptr; };
  void SetPixel(void *video, int x, int y, uint8 colour) override {};
  void DrawRect(void *video, int width, int height, uint8 colour) override {};
  void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 colour, int width, int dash) override {};
  void CopyFromBuffer(void *video, const void *src, int width, int height) override {};
  void CopyToBuffer(const void *video, void *dst, int width, int height) override {};
  void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) override {};
  void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) override {};
  int BufferSize(int width, int height) override { return 0; };
  void PaletteAnimate(const Palette &palette) override { };
  Blitter::PaletteAnimation UsePaletteAnimation() override { return Blitter::PALETTE_ANIMATION_NONE; };
 
  const char *GetName() override { return "null"; }
  int GetBytesPerPixel() override { return 0; }
};
 
class FBlitter_Null : public BlitterFactory {
public:
  FBlitter_Null() : BlitterFactory("null", "Null Blitter (does nothing)") {}
  Blitter *CreateInstance() override { return new Blitter_Null(); }
};
 
#endif /* BLITTER_NULL_HPP */