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View of /trunk/src/include/Diderot/inline-image.h

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Revision 1640 - (download) (as text) (annotate)
Wed Nov 16 02:19:51 2011 UTC (8 years ago) by jhr
File size: 3187 byte(s)
  Merging in changes from pure-cfg branch.
/*! \file inline-image.h
 *
 * \author John Reppy
 */

/*
 * COPYRIGHT (c) 2011 The Diderot Project (http://diderot-language.cs.uchicago.edu)
 * All rights reserved.
 */

#ifndef _DIDEROT_INLINE_IMAGE_H_
#define _DIDEROT_INLINE_IMAGE_H_

#ifndef _DIDEROT_TYPES_H_
#  include "types.h"
#endif
#ifndef _DIDEROT_INLINE_VEC2_H_
#  include "inline-vec2.h"
#endif
#ifndef _DIDEROT_INLINE_VEC3_H_
#  include "inline-vec3.h"
#endif
#ifndef _DIDEROT_INLINE_VEC4_H_
#  include "inline-vec4.h"
#endif
#ifndef _DIDEROT_INLINE_MATRIX_H_
#  include "inline-matrix.h"
#endif

/***** 1D Image functions *****/

// check if pos is inside the img, assuming that we have a border of width s.
//
STATIC_INLINE bool Inside1 (float pos, Diderot_image1D_t *img, int s)
{
    return ((s-1 < pos) && (pos < (img->size[0] - s)));
}

STATIC_INLINE float ToImageSpace1 (Diderot_image1D_t *img, float pos)
{
    return img->s * pos + img->t;
}


/***** 2D Image functions *****/

// check if pos is inside the img, assuming that we have a border of width s.
//
STATIC_INLINE bool Inside2 (Diderot_vec2_t posArg, Diderot_image2D_t *img, int s)
{
// NOTE: there might be a vectorized way to do this compare!
// cvtps2pi -- converts vector of floats to vector of int32_t values

    Diderot_union2_t pos;
    pos.v = posArg;
    return ((s-1 < pos.r[0]) && (pos.r[0] < (img->size[0] - s))
        &&  (s-1 < pos.r[1]) && (pos.r[1] < (img->size[1] - s)));
}

STATIC_INLINE Diderot_vec2_t ToImageSpace2 (Diderot_image2D_t *img, Diderot_vec2_t p)
{
    return vec2(dot2(img->w2i[0].v, p), dot2(img->w2i[1].v, p)) + img->tVec;
}

STATIC_INLINE Diderot_vec2_t ToWorldSpace2 (Diderot_image2D_t *img, Diderot_vec2_t g)
{
    return vec2(
	dot2(img->w2iT[0].v, g),
	dot2(img->w2iT[1].v, g));
}

STATIC_INLINE void ToWorldSpace2x2 (Diderot_Mat2x2_t dst, Diderot_image2D_t *img, Diderot_Mat2x2_t src)
{
    Diderot_Mat2x2_t tmp;
    mulMat2x2Mat2x2 (tmp, img->w2iT, src);
    mulMat2x2Mat2x2 (dst, tmp, img->w2i);
}


/***** 3D Image functions *****/

// check if pos is inside the img, assuming that we have a border of width s.
//
STATIC_INLINE bool Inside3 (Diderot_vec3_t posArg, Diderot_image3D_t *img, int s)
{
// NOTE: there might be a vectorized way to do this compare!
// cvtps2pi -- converts vector of floats to vector of int32_t values

    Diderot_union3_t pos;
    pos.v = posArg;
    return ((s-1 < pos.r[0]) && (pos.r[0] < (img->size[0] - s))
        &&  (s-1 < pos.r[1]) && (pos.r[1] < (img->size[1] - s))
        &&  (s-1 < pos.r[2]) && (pos.r[2] < (img->size[2] - s)));
}

STATIC_INLINE Diderot_vec3_t ToImageSpace3 (Diderot_image3D_t *img, Diderot_vec3_t p)
{
    return vec3(dot3(img->w2i[0].v, p), dot3(img->w2i[1].v, p), dot3(img->w2i[2].v, p)) + img->tVec;
}

STATIC_INLINE Diderot_vec3_t ToWorldSpace3 (Diderot_image3D_t *img, Diderot_vec3_t g)
{
    return vec3(
	dot3(img->w2iT[0].v, g),
	dot3(img->w2iT[1].v, g),
	dot3(img->w2iT[2].v, g));
}

STATIC_INLINE void ToWorldSpace3x3 (Diderot_Mat3x3_t dst, Diderot_image3D_t *img, Diderot_Mat3x3_t src)
{
    Diderot_Mat3x3_t tmp;
    mulMat3x3Mat3x3 (tmp, img->w2iT, src);
    mulMat3x3Mat3x3 (dst, tmp, img->w2i);
}

#endif /* !_DIDEROT_INLINE_IMAGE_H_ */

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