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/* Copyright (C) 2004 MySQL AB
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/**
* @file myx_gc_texture.h
* @brief Implementation of a texture class.
*
*/
#ifndef __GC_TEXTURE_H__
#define __GC_TEXTURE_H__
#include "myx_gc_canvas.h"
//----------------------------------------------------------------------------------------------------------------------
// CGCTexture encapsulates a png image used to texture a figure in Generic Canvas. It loads the image data
// and manages it as well as the OpenGL properties for it.
// Note: A texture can be shared amongst several figures including its properties (e.g. minification filter).
class CGCTexture
{
private:
TLODList FLODList; // The list of file names and their associated LOD.
wstring FName; // The identification of this texture.
GLenum FWrapModeS; // Specifies how textures are handled at the edges of a figure (horizontal direction).
GLenum FWrapModeT; // Specifies how textures are handled at the edges of a figure (vertical direction).
GLenum FMinFilter; // Specifies how stretching of texture data is performed when the actual screen image is smaller than the image data.
GLenum FMagFilter; // Specifies how stretching of texture data is performed when the actual screen image is larger than the image data.
GLenum FTarget; // One-dimensional or two-dimensional textures.
GLuint FHandle; // The OpenGL handle for this texture.
GLint FMode; // The mode how to apply the texture to the surface.
protected:
void loadTexture(void);
TImage* loadTextureImage(const wstring& name, unsigned char*& Buffer);
public:
CGCTexture(const TLODList& lodData, const wstring& id, GLenum wrapModeS, GLenum wrapModeT, GLenum minFilter,
GLenum magFilter, int dimensions, GLenum textureMode);
~CGCTexture(void);
void activateTexture(void);
void deactivateTexture(void);
void invalidateHandle(void);
void validateHandle(void);
};
//----------------------------------------------------------------------------------------------------------------------
#endif // #ifdef __GC_TEXTURE_H__
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