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/*-----------------------------------------------------------------
LOG
GEM - Graphics Environment for Multimedia
The state to pass among GEM objects
Copyright (c) 1997-2000 Mark Danks. mark@danks.org
Copyright (c) Günther Geiger. geiger@epy.co.at
Copyright (c) 2001-2011 IOhannes m zmölnig. forum::für::umläute. IEM. zmoelnig@iem.at
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
-----------------------------------------------------------------*/
#ifndef _INCLUDE__GEM_GEM_STATE_H_
#define _INCLUDE__GEM_GEM_STATE_H_
#include "Gem/ExportDef.h"
#include "Gem/GemGL.h"
#include "Gem/RTE.h"
#include "Utils/any.h"
struct pixBlock;
class TexCoord;
/*-----------------------------------------------------------------
-------------------------------------------------------------------
CLASS
TexCoord
DESCRIPTION
-----------------------------------------------------------------*/
class GEM_EXTERN TexCoord
{
public:
TexCoord() : s(0.f), t(0.f) { }
TexCoord(float s_, float t_) : s(s_), t(t_) { }
float s;
float t;
};
/*-----------------------------------------------------------------
-------------------------------------------------------------------
CLASS
GemState
The state to pass among GEM objects
DESCRIPTION
-----------------------------------------------------------------*/
class GemStateData;
class GEM_EXTERN GemState
{
public:
typedef enum {
_DIRTY,
_TIMING_TICK,
_PIX,
_GL_STACKS,
_GL_DISPLAYLIST,
_GL_LIGHTING,
_GL_SMOOTH,
_GL_DRAWTYPE,
_GL_TEX_TYPE,
_GL_TEX_COORDS,
_GL_TEX_NUMCOORDS,
_GL_TEX_UNITS,
_LAST
} key_t;
//////////
// Has something changed since the last time?
// deprecated: use property 'dirty' instead
GEM_DEPRECATED bool dirty;
//////////
// Are we in a display list creation?
// deprecated: use property 'gl.displaylist' instead
GEM_DEPRECATED bool inDisplayList;
//////////
// Lighting on?
// deprecated: use property 'gl.lighting' instead
GEM_DEPRECATED bool lighting;
//////////
// Smooth shading (flat is other type)
// deprecated: use property 'gl.smooth' instead
GEM_DEPRECATED bool smooth;
//////////
// Texture mapping on?
// 0..off
// 1..normalized texture
// 2..rectangle texture
// deprecated: use property 'gl.tex.type' instead
GEM_DEPRECATED int texture;
//////////
// The image to texture map
// deprecated: use property 'pix' instead
GEM_DEPRECATED pixBlock *image;
//////////
// Texture coordinates.
// This can be NULL if there aren't any coordinates
// deprecated: use property 'gl.tex.coords' instead
GEM_DEPRECATED TexCoord *texCoords;
//////////
// The number of TexCoords
// deprecated: use property 'gl.tex.numcoords' instead
GEM_DEPRECATED int numTexCoords;
//////////
// The number of multiTexUnits
// default = 0, max = 7
// deprecated: use property 'gl.tex.units' instead
GEM_DEPRECATED int multiTexUnits;
//////////
// Milliseconds since last frame
// If in Stereoscopic mode, then it is the same number for both left
// and right renderings
// deprecated: use property 'timing.tick' instead
GEM_DEPRECATED float tickTime;
//////////////////
// the default draw-type (might be overriden within a Geo)
// deprecated: use property 'gl.drawtype' instead
GEM_DEPRECATED GLenum drawType;
//////////
// how deep is the current stack /* 4 fields for the 4 stacks */
// deprecated: use property 'gl.stacks' instead
GEM_DEPRECATED int stackDepth[4];
////////////
//vertex-array data
// deprecated: use property 'vertex.dirty' instead
GEM_DEPRECATED int VertexDirty; // the vertex-arrays has changed
// deprecated: use property 'vertex.array.vertex' instead
GEM_DEPRECATED GLfloat *VertexArray;
// deprecated: use property 'vertex.array.vertex' instead
GEM_DEPRECATED int VertexArraySize;
// deprecated: use property 'vertex.array.vertex' instead
GEM_DEPRECATED int VertexArrayStride;
// deprecated: use property 'vertex.array.color' instead
GEM_DEPRECATED GLfloat *ColorArray;
// deprecated: use property 'vertex.array.color' instead
GEM_DEPRECATED bool HaveColorArray;
// deprecated: use property 'vertex.array.normal' instead
GEM_DEPRECATED GLfloat *NormalArray;
// deprecated: use property 'vertex.array.normal' instead
GEM_DEPRECATED bool HaveNormalArray;
// deprecated: use property 'vertex.array.texcoord' instead
GEM_DEPRECATED GLfloat *TexCoordArray;
// deprecated: use property 'vertex.array.texcoord' instead
GEM_DEPRECATED bool HaveTexCoordArray;
//////////
// Constructor
GemState(void);
GemState(const GemState&);
//////////
// Destructor
virtual ~GemState(void);
float texCoordX(int num) const;
float texCoordY(int num) const;
/* reset (parts of?) the GemState: to be called from [gemhead] */
void reset(void);
/* get a named property */
/* if the property exists (as the given type),
* the value of the 2nd argument is set accordingly and <code>true</code> is returned
* if the key does not exist (or the type is wrong) the value is not touched and <code>false</code> is returned instead
*/
virtual bool get(const key_t key, gem::any&value);
template<class T>
bool get(const key_t key, T&value) {
try {
gem::any val;
if(!get(key,val)) {
// key not found
return false;
}
value=gem::any_cast<T>(val);
return true;
} catch (gem::bad_any_cast&x) {
::verbose(3, "%s:%d [%s] %d :: %s", __FILE__, __LINE__, __FUNCTION__, key, x.what().c_str());
// type problem
}
return false;
};
/* set a named property */
virtual bool set(const key_t key, gem::any value);
/* remove a named property */
virtual bool remove(const key_t key);
// Copy assignment
GemState& operator=(const GemState&);
protected:
GemStateData*data;
};
#endif // for header file
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