scummvm/engines/pegasus/surface.h
2021-12-26 18:48:43 +01:00

140 lines
4.2 KiB
C++

/* 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.
*
* Additional copyright for this file:
* Copyright (C) 1995-1997 Presto Studios, Inc.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef PEGASUS_SURFACE_H
#define PEGASUS_SURFACE_H
#include "common/rect.h"
#include "common/str.h"
#include "pegasus/elements.h"
#include "pegasus/types.h"
namespace Common {
class MacResManager;
}
namespace Graphics {
struct Surface;
}
namespace Video {
class VideoDecoder;
}
namespace Pegasus {
// Surface bounds are always normalized.
class Surface {
public:
Surface();
virtual ~Surface();
virtual void allocateSurface(const Common::Rect &);
virtual void deallocateSurface();
virtual void shareSurface(Surface *surface);
bool isSurfaceValid() const { return _surface != 0; }
Graphics::Surface *getSurface() const { return _surface; }
void getSurfaceBounds(Common::Rect &r) { r = _bounds; }
// None of the copyToCurrentPort* functions do any sanity checks.
// It's up to clients to make sure that the Surface is valid.
void copyToCurrentPort() const;
void copyToCurrentPortTransparent() const;
void copyToCurrentPort(const Common::Rect &) const;
void copyToCurrentPortTransparent(const Common::Rect &) const;
void copyToCurrentPort(const Common::Rect &, const Common::Rect &) const;
void copyToCurrentPortTransparent(const Common::Rect &, const Common::Rect &) const;
void copyToCurrentPortMasked(const Common::Rect &, const Common::Rect &, const Surface *) const;
void copyToCurrentPortTransparentGlow(const Common::Rect &, const Common::Rect &) const;
void scaleTransparentCopy(const Common::Rect &, const Common::Rect &) const;
void scaleTransparentCopyGlow(const Common::Rect &, const Common::Rect &) const;
virtual void getImageFromPICTFile(const Common::String &fileName);
virtual void getImageFromPICTResource(Common::MacResManager *resFork, uint16 id);
virtual void getImageFromMovieFrame(Video::VideoDecoder *, TimeValue);
protected:
bool _ownsSurface;
Graphics::Surface *_surface;
Common::Rect _bounds;
private:
bool getImageFromPICTStream(Common::SeekableReadStream *stream);
uint32 getGlowColor(uint32 color) const;
bool isTransparent(uint32 color) const;
};
class PixelImage : public Surface {
public:
PixelImage();
~PixelImage() override {}
void drawImage(const Common::Rect &, const Common::Rect &);
protected:
virtual void setTransparent(bool transparent) { _transparent = transparent; }
bool _transparent;
};
class Frame : public PixelImage {
public:
Frame() {}
~Frame() override {}
virtual void initFromPICTFile(const Common::String &fileName, bool transparent = false);
virtual void initFromPICTResource(Common::MacResManager *resFork, uint16 id, bool transparent = false);
virtual void initFromMovieFrame(Video::VideoDecoder *, TimeValue, bool transparent = false);
};
class SpriteFrame : public Frame {
friend class Sprite;
public:
SpriteFrame() { _referenceCount = 0; }
~SpriteFrame() override {}
protected:
uint32 _referenceCount;
};
class Picture : public DisplayElement, public Frame {
public:
Picture(const DisplayElementID id) : DisplayElement(id) {}
~Picture() override {}
void initFromPICTFile(const Common::String &fileName, bool transparent = false) override;
void initFromPICTResource(Common::MacResManager *resFork, uint16 id, bool transparent = false) override;
void initFromMovieFrame(Video::VideoDecoder *, TimeValue, bool transparent = false) override;
void draw(const Common::Rect &) override;
};
} // End of namespace Pegasus
#endif