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/* $XFree86$ */
/*
** License Applicability. Except to the extent portions of this file are
** made subject to an alternative license as permitted in the SGI Free
** Software License B, Version 1.1 (the "License"), the contents of this
** file are subject only to the provisions of the License. You may not use
** this file except in compliance with the License. You may obtain a copy
** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
**
** http://oss.sgi.com/projects/FreeB
**
** Note that, as provided in the License, the Software is distributed on an
** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
**
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
**
** Additional Notice Provisions: The application programming interfaces
** established by SGI in conjunction with the Original Code are The
** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
** Window System(R) (Version 1.3), released October 19, 1998. This software
** was created using the OpenGL(R) version 1.2.1 Sample Implementation
** published by SGI, but has not been independently verified as being
** compliant with the OpenGL(R) version 1.2.1 Specification.
**
*/
#include "packrender.h"
/*
** Routines to pack evaluator maps into the transport buffer. Maps are
** allowed to have extra arbitrary data, so these routines extract just
** the information that the GL needs.
*/
void __glFillMap1f(GLint k, GLint order, GLint stride,
const GLfloat *points, GLubyte *pc)
{
if (stride == k) {
/* Just copy the data */
__GLX_PUT_FLOAT_ARRAY(0, points, order * k);
} else {
GLint i;
for (i = 0; i < order; i++) {
__GLX_PUT_FLOAT_ARRAY(0, points, k);
points += stride;
pc += k * __GLX_SIZE_FLOAT32;
}
}
}
void __glFillMap1d(GLint k, GLint order, GLint stride,
const GLdouble *points, GLubyte *pc)
{
if (stride == k) {
/* Just copy the data */
__GLX_PUT_DOUBLE_ARRAY(0, points, order * k);
} else {
GLint i;
for (i = 0; i < order; i++) {
__GLX_PUT_DOUBLE_ARRAY(0, points, k);
points += stride;
pc += k * __GLX_SIZE_FLOAT64;
}
}
}
void __glFillMap2f(GLint k, GLint majorOrder, GLint minorOrder,
GLint majorStride, GLint minorStride,
const GLfloat *points, GLfloat *data)
{
GLint i, j, x;
if ((minorStride == k) && (majorStride == minorOrder*k)) {
/* Just copy the data */
__GLX_MEM_COPY(data, points, majorOrder * majorStride *
__GLX_SIZE_FLOAT32);
return;
}
for (i = 0; i < majorOrder; i++) {
for (j = 0; j < minorOrder; j++) {
for (x = 0; x < k; x++) {
data[x] = points[x];
}
points += minorStride;
data += k;
}
points += majorStride - minorStride * minorOrder;
}
}
void __glFillMap2d(GLint k, GLint majorOrder, GLint minorOrder,
GLint majorStride, GLint minorStride,
const GLdouble *points, GLdouble *data)
{
int i,j,x;
if ((minorStride == k) && (majorStride == minorOrder*k)) {
/* Just copy the data */
__GLX_MEM_COPY(data, points, majorOrder * majorStride *
__GLX_SIZE_FLOAT64);
return;
}
#ifdef __GLX_ALIGN64
x = k * __GLX_SIZE_FLOAT64;
#endif
for (i = 0; i<majorOrder; i++) {
for (j = 0; j<minorOrder; j++) {
#ifdef __GLX_ALIGN64
__GLX_MEM_COPY(data, points, x);
#else
for (x = 0; x<k; x++) {
data[x] = points[x];
}
#endif
points += minorStride;
data += k;
}
points += majorStride - minorStride * minorOrder;
}
}
GLint __glEvalComputeK(GLenum target)
{
switch(target) {
case GL_MAP1_VERTEX_4:
case GL_MAP1_COLOR_4:
case GL_MAP1_TEXTURE_COORD_4:
case GL_MAP2_VERTEX_4:
case GL_MAP2_COLOR_4:
case GL_MAP2_TEXTURE_COORD_4:
return 4;
case GL_MAP1_VERTEX_3:
case GL_MAP1_TEXTURE_COORD_3:
case GL_MAP1_NORMAL:
case GL_MAP2_VERTEX_3:
case GL_MAP2_TEXTURE_COORD_3:
case GL_MAP2_NORMAL:
return 3;
case GL_MAP1_TEXTURE_COORD_2:
case GL_MAP2_TEXTURE_COORD_2:
return 2;
case GL_MAP1_TEXTURE_COORD_1:
case GL_MAP2_TEXTURE_COORD_1:
case GL_MAP1_INDEX:
case GL_MAP2_INDEX:
return 1;
default:
return 0;
}
}
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