OOOpenGLMatrixManager.h

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/*
 
OOOpenGLMatrixManager.h
 
Manages OpenGL Model, View, etc. matrices.
 
Oolite
Copyright (C) 2004-2014 Giles C Williams and contributors
 
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., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
 
*/
 
#import "OOMaths.h"
 
extern const char* ooliteStandardMatrixUniforms[];
 
enum
{
    OOLITE_GL_MATRIX_MODELVIEW,
    OOLITE_GL_MATRIX_PROJECTION,
    OOLITE_GL_MATRIX_MODELVIEW_PROJECTION,
    OOLITE_GL_MATRIX_NORMAL,
    OOLITE_GL_MATRIX_MODELVIEW_INVERSE,
    OOLITE_GL_MATRIX_PROJECTION_INVERSE,
    OOLITE_GL_MATRIX_MODELVIEW_PROJECTION_INVERSE,
    OOLITE_GL_MATRIX_MODELVIEW_TRANSPOSE,
    OOLITE_GL_MATRIX_PROJECTION_TRANSPOSE,
    OOLITE_GL_MATRIX_MODELVIEW_PROJECTION_TRANSPOSE,
    OOLITE_GL_MATRIX_MODELVIEW_INVERSE_TRANSPOSE,
    OOLITE_GL_MATRIX_PROJECTION_INVERSE_TRANSPOSE,
    OOLITE_GL_MATRIX_MODELVIEW_PROJECTION_INVERSE_TRANSPOSE,
    OOLITE_GL_MATRIX_END
};
 
@interface OOOpenGLMatrixStack: NSObject
{
@private
    NSMutableArray  *stack;
}
 
- (id) init;
- (void) dealloc;
- (void) push: (OOMatrix) matrix;
- (OOMatrix) pop;
- (NSUInteger) stackCount;
 
@end
 
@interface OOOpenGLMatrixManager: NSObject
{
@private
    OOMatrix        matrices[OOLITE_GL_MATRIX_END];
    BOOL            valid[OOLITE_GL_MATRIX_END];
    OOOpenGLMatrixStack *modelViewStack;
    OOOpenGLMatrixStack *projectionStack;
}
 
- (id) init;
- (void) dealloc;
- (void) loadModelView: (OOMatrix) matrix;
- (void) resetModelView;
- (void) multModelView: (OOMatrix) matrix;
- (void) translateModelView: (Vector) vector;
- (void) rotateModelView: (GLfloat) angle axis: (Vector) axis;
- (void) scaleModelView: (Vector) scale;
- (void) lookAtWithEye: (Vector) eye center: (Vector) center up: (Vector) up; 
- (void) pushModelView;
- (OOMatrix) popModelView;
- (OOMatrix) getModelView;
- (NSUInteger) countModelView;
- (void) syncModelView;
- (void) loadProjection: (OOMatrix) matrix;
- (void) multProjection: (OOMatrix) matrix;
- (void) translateProjection: (Vector) vector;
- (void) rotateProjection: (GLfloat) angle axis: (Vector) axis;
- (void) scaleProjection: (Vector) scale;
- (void) frustumLeft: (double) l right: (double) r bottom: (double) b top: (double) t near: (double) n far: (double) f;
- (void) orthoLeft: (double) l right: (double) r bottom: (double) b top: (double) t near: (double) n far: (double) f;
- (void) perspectiveFovy: (double) fovy aspect: (double) aspect zNear: (double) zNear zFar: (double) zFar;
- (void) resetProjection;
- (void) pushProjection;
- (OOMatrix) popProjection;
- (OOMatrix) getProjection;
- (void) syncProjection;
- (OOMatrix) getMatrix: (int) which;
- (NSArray*) standardMatrixUniformLocations: (GLhandleARB) program;
 
@end
 
void OOGLPushModelView(void);
OOMatrix OOGLPopModelView(void);
OOMatrix OOGLGetModelView(void);
void OOGLResetModelView(void);
void OOGLLoadModelView(OOMatrix matrix);
void OOGLMultModelView(OOMatrix matrix);
void OOGLTranslateModelView(Vector vector);
void OOGLRotateModelView(GLfloat angle, Vector axis);
void OOGLScaleModelView(Vector scale);
void OOGLLookAt(Vector eye, Vector center, Vector up);
 
void OOGLResetProjection(void);
void OOGLPushProjection(void);
OOMatrix OOGLPopProjection(void);
OOMatrix OOGLGetProjection(void);
void OOGLLoadProjection(OOMatrix matrix);
void OOGLMultProjection(OOMatrix matrix);
void OOGLTranslateProjection(Vector vector);
void OOGLRotateProjection(GLfloat angle, Vector axis);
void OOGLScaleProjection(Vector scale);
void OOGLFrustum(double left, double right, double bottom, double top, double near, double far);
void OOGLOrtho(double left, double right, double bottom, double top, double near, double far);
void OOGLPerspective(double fovy, double aspect, double zNear, double zFar);
 
OOMatrix OOGLGetModelViewProjection(void);