/*

 *  VariableFormatVertex.h

 *

 *  Created by Michael Larson on Tue Mar 11 2003.

 *  Copyright (c) 2003 Apple Computer. All rights reserved.

 *

 Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.

   ("Apple") in consideration of your agreement to the following terms, and your

   use, installation, modification or redistribution of this Apple software

   constitutes acceptance of these terms.  If you do not agree with these terms,

   please do not use, install, modify or redistribute this Apple software.

   In consideration of your agreement to abide by the following terms, and subject

   to these terms, Apple grants you a personal, non-exclusive license, under Apple's

   copyrights in this original Apple software (the "Apple Software"), to use,

   reproduce, modify and redistribute the Apple Software, with or without

   modifications, in source and/or binary forms; provided that if you redistribute

   the Apple Software in its entirety and without modifications, you must retain

   this notice and the following text and disclaimers in all such redistributions of

   the Apple Software.  Neither the name, trademarks, service marks or logos of

   Apple Computer, Inc. may be used to endorse or promote products derived from the

   Apple Software without specific prior written permission from Apple.  Except as

   expressly stated in this notice, no other rights or licenses, express or implied,

   are granted by Apple herein, including but not limited to any patent rights that

   may be infringed by your derivative works or by other works in which the Apple

   Software may be incorporated.

   The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

   WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

   WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR

   PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

   COMBINATION WITH YOUR PRODUCTS.

   IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

   ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION

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 *

 */

#include <OpenGL/gl.h>

#include <OpenGL/glext.h>

#import <Foundation/Foundation.h>

#define kAttributeTexture(a)        (1 << a)

#define kAttributeTexture0      (1 << 0)

#define kAttributeTexture1      (1 << 1)

#define kAttributeTexture2      (1 << 2)

#define kAttributeTexture3      (1 << 3)

#define kAttributeTexture4      (1 << 4)

#define kAttributeTexture5      (1 << 5)

#define kAttributeTexture6      (1 << 6)

#define kAttributeTexture7      (1 << 7)

#define kAttributeNormal        (1 << 8)

#define kAttributeColor         (1 << 9)

#define kAttributeSecondaryColor    (1 << 10)

#define kAttributeFog           (1 << 11)

enum {

    kglTexture0 = 0,

    kglTexture1,

    kglTexture2,

    kglTexture3,

    kglTexture4,

    kglTexture5,

    kglTexture6,

    kglTexture7,

    kglNormals,

    kglColor,

    kglSecondaryColor,

    kglFog,

    kUnknownVertexAttributeTag

};

@interface VariableFormatVertex : NSObject {

    GLint       m_vertexCount;

    unsigned int    m_vertexAttributes;

    int         m_stride;

    GLfloat     *m_vertices;

    GLint       m_isMesh;

    GLint       m_meshCols, m_meshRows;

    GLint       m_attributeOffsets[12];

    GLboolean       m_useVAR;

    GLboolean       m_useCVA;

    GLboolean       m_useVAO;

    GLuint      m_VAO;

@private

    GLint       m_useDoubles;

    GLint       m_use8BitComponents;

}

- (void) setFloatSize: (int) size;

- (void) setComponentSize: (int) size;

// creation

- (VariableFormatVertex *) init;

- (VariableFormatVertex *) initWithVertexType: (unsigned int)type vertexArrayOfCount: (int)size;

- (void) dealloc;

// VAR support

- (GLboolean) useVAR;

- (void) attachToVertexArrayRange;

- (void) detachFromVertexArrayRange;

- (void) flushVertexArrayRange;

// CVA support

- (GLboolean) useCVA;

- (void) setCVA: (GLboolean) flag;

// VAO support

- (GLboolean) useVAO;

- (void) setVAO: (GLboolean) flag toVAO: (GLuint) vao;

- (GLuint) VAO;

- (void) BindVAO;

// vertex copying

- (void)atVertex: (int) index copyVertex: (GLfloat *) pSrcFloats;

// Vertex count and atributes

- (GLint) vertexCount;

- (unsigned int) vertexAttributes;

- (GLint) stride;

- (GLint) byteStride;

// Vertex indexing

- (GLfloat *) atVertex: (int)index;

// mesh support

- (void) setMeshRows: (int) rows Cols: (int) cols;

- (GLboolean) isMesh;

- (GLint) rows;

- (GLint) cols;

- (GLfloat *) atRow: (int) row atCol: (int)col;

- (void)atRow: (int) row atCol: (int) col copyVertex: (GLfloat *) pSrcFloats;

// attribute usage

- (GLint) usesTexture0;

- (GLint) usesTexture1;

- (GLint) usesTexture2;

- (GLint) usesTexture3;

- (GLint) usesTexture4;

- (GLint) usesTexture5;

- (GLint) usesTexture6;

- (GLint) usesTexture7;

- (GLint) usesNormal;

- (GLint) usesColor;

- (GLint) usesSecondaryColor;

- (GLint) usesFog;

// attribute indexing

- (GLfloat *) Texture0: (GLfloat *) pVertex;

- (GLfloat *) Texture1: (GLfloat *) pVertex;

- (GLfloat *) Texture2: (GLfloat *) pVertex;

- (GLfloat *) Texture3: (GLfloat *) pVertex;

- (GLfloat *) Texture4: (GLfloat *) pVertex;

- (GLfloat *) Texture5: (GLfloat *) pVertex;

- (GLfloat *) Texture6: (GLfloat *) pVertex;

- (GLfloat *) Texture7: (GLfloat *) pVertex;

- (GLfloat *) Texture: (GLint) unit atVertex: (GLfloat *) pVertex;

- (GLfloat *) Normal: (GLfloat *) pVertex;

- (GLfloat *) Color: (GLfloat *) pVertex;

- (GLfloat *) SecondaryColor: (GLfloat *) pVertex;

- (GLfloat *) Fog: (GLfloat *) pVertex;

// attribute data

- (void) atVertex: (GLint) index setPos_X: (GLfloat) x Y: (GLfloat) y  Z: (GLfloat) z;

- (void) atVertex: (GLint) index setTexture0_S: (GLfloat) s T: (GLfloat) t;

- (void) atVertex: (GLint) index setTexture1_S: (GLfloat) s T: (GLfloat) t;

- (void) atVertex: (GLint) index setTexture2_S: (GLfloat) s T: (GLfloat) t;

- (void) atVertex: (GLint) index setTexture3_S: (GLfloat) s T: (GLfloat) t;

- (void) atVertex: (GLint) index setTexture4_S: (GLfloat) s T: (GLfloat) t;

- (void) atVertex: (GLint) index setTexture5_S: (GLfloat) s T: (GLfloat) t;

- (void) atVertex: (GLint) index setTexture6_S: (GLfloat) s T: (GLfloat) t;

- (void) atVertex: (GLint) index setTexture7_S: (GLfloat) s T: (GLfloat) t;

- (void) atVertex: (GLint) index setNormal_X: (GLfloat) x Y: (GLfloat) y  Z: (GLfloat) z;

- (void) atVertex: (GLint) index setColor_R: (GLfloat) r G: (GLfloat) g B: (GLfloat) b;

- (void) atVertex: (GLint) index setSecondaryColor_R: (GLfloat) r G: (GLfloat) g B: (GLfloat) b;

- (void) atVertex: (GLint) index setFog_R: (GLfloat) r G: (GLfloat) g B: (GLfloat) b;

@end