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/*
This file is part of Advanced Strategic Command; http://www.asc-hq.de
Copyright (C) 1994-2003 Martin Bickel and Marc Schellenberger
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; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
*/
#ifndef surfaceH
#define surfaceH
#include "../libs/sdlmm/src/sdlmm.h"
#include "../basestreaminterface.h"
typedef SDLmm::SPoint SPoint;
//! A Device Independent color. Shamelessly pinched from Paragui to reduce coupling
class DI_Color : public SDL_Color {
public:
DI_Color();
DI_Color(const SDL_Color& c);
DI_Color(Uint32 c);
DI_Color(Uint8 r, Uint8 g, Uint8 b);
DI_Color& operator=(const SDL_Color& c);
DI_Color& operator=(Uint32 c);
// operator Uint32() const;
inline Uint32 MapRGB(SDL_PixelFormat* format) const {
return SDL_MapRGB(format, r, g, b);
}
inline Uint32 MapRGBA(SDL_PixelFormat* format, Uint8 a) const {
return SDL_MapRGBA(format, r, g, b, a);
}
inline bool operator!=(const DI_Color& c) const {
return !operator==(c);// ((r != c.r) || (g != c.g) || (b != c.b));
}
inline bool operator==(const DI_Color& c) const {
return ((r == c.r) && (g == c.g) && (b == c.b));
}
};
class Surface: public SDLmm::Surface {
void* pixelDataPointer; // in some situations
public:
static const Uint32 transparent = 0;
static const Uint32 opaque = 255l;
explicit Surface( SDL_Surface *surface);
Surface(const SDLmm::Surface& other);
Surface() : SDLmm::Surface(NULL), pixelDataPointer(NULL) {};
Surface Duplicate() const;
static Surface createSurface( int width, int height, SDLmm::Color color = 255 );
static Surface createSurface( int width, int height, int depth, SDLmm::Color color = 0xff0000ff );
static Surface Wrap( SDL_Surface *surface) { surface->refcount++; return Surface(surface);};
static void SetScreen( SDL_Surface* screen );
/**
Creates an image from an BGI image structure.
*/
void newFromBGI( void* img );
void* toBGI() const;
void FillTransparent();
void read ( tnstream& stream ) ;
void readImageFile ( tnstream& stream ) ;
void write ( tnstream& stream ) const;
void strech ( int width, int height );
void writeDefaultPixelFormat ( tnstream& stream ) ;
static void readDefaultPixelFormat ( tnstream& stream );
//! assigns the default ASC palette to the surface (only for 8 Bit surfaces)
void assignDefaultPalette();
void assignPalette(SDL_Color* colors, int startColor = 0, int colorNum = 256 );
//! tries to automatically detect the color key of the surface
void detectColorKey( bool RLE = false );
bool isTransparent( SDLmm::Color col ) const;
void ColorKey2AlphaChannel() ;
bool hasAlpha();
/*
SDLmm::ColorRGB GetRGB(SDLmm::Color pixel) const;
SDLmm::ColorRGBA GetRGBA(SDLmm::Color pixel) const;
*/
int getMemoryFootprint() const;
SDL_Surface* getBaseSurface() { return me; };
const SDL_Surface* getBaseSurface() const { return me; };
~Surface();
protected:
virtual int getDepthFormat() { return -1; };
void convert();
private:
static SDLmm::PixelFormat* default8bit;
static SDLmm::PixelFormat* default32bit;
};
class TypedSurfaceBase : public Surface{
protected:
explicit TypedSurfaceBase( SDL_Surface *surface) : Surface(surface) {};
TypedSurfaceBase(const SDLmm::Surface& other) : Surface( other ) {};
TypedSurfaceBase() : Surface(NULL) {};
};
template<int colorDepth> class TypedSurface : public TypedSurfaceBase {
public:
static const int depth = colorDepth;
explicit TypedSurface( SDL_Surface *surface) : TypedSurfaceBase(surface) {};
//! the parameter depthcheck is primarily there to prevent accidential usage of this constructor
explicit TypedSurface( SDLmm::Surface& surface , int depthCheck ) : TypedSurfaceBase(surface) {
assert ( surface.GetPixelFormat().BytesPerPixel() == depth );
assert ( depthCheck == depth );
};
TypedSurface(const TypedSurface<colorDepth>& other) : TypedSurfaceBase( other ) {};
TypedSurface() : TypedSurfaceBase(NULL) {};
protected:
virtual int getDepthFormat() { return depth; };
};
typedef TypedSurface<1> Surface8;
typedef TypedSurface<4> Surface32;
template<int depth> TypedSurface<depth>& castSurface( Surface& s ) {
assert ( s.GetPixelFormat().BytesPerPixel() == depth );
return static_cast<TypedSurface<depth>& >(s);
};
void applyFieldMask( Surface& s, int x = 0, int y = 0, bool detectColorKey = true );
//! applies a field mask that uses FEFEFE Color as Colorkey to load old images
void applyLegacyFieldMask( Surface& s, int x = 0, int y = 0, bool detectColorKey = false );
Surface rotateSurface( Surface& s, int degrees );
class SurfaceLock {
Surface& surf;
public:
SurfaceLock( Surface& s ) : surf(s) { s.Lock(); };
~SurfaceLock() { surf.Unlock(); };
};
#endif
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