From b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 Mon Sep 17 00:00:00 2001 From: Mike Gabriel Date: Mon, 2 Feb 2015 15:02:49 +0100 Subject: massive reduction of unneeded files --- .../ogl-sample/main/gfx/lib/glu/libutil/quad.c | 1162 -------------------- 1 file changed, 1162 deletions(-) delete mode 100644 nx-X11/extras/ogl-sample/main/gfx/lib/glu/libutil/quad.c (limited to 'nx-X11/extras/ogl-sample/main/gfx/lib/glu/libutil/quad.c') diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libutil/quad.c b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libutil/quad.c deleted file mode 100644 index 3055c6494..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libutil/quad.c +++ /dev/null @@ -1,1162 +0,0 @@ -/* -** 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. -** -*/ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libutil/quad.c,v 1.3tsi Exp $ */ - -#include "gluos.h" -#include "gluint.h" -#include -#include -#include -#include -#include - -/* Make it not a power of two to avoid cache thrashing on the chip */ -#define CACHE_SIZE 240 - -#undef PI -#define PI 3.14159265358979323846 - -struct GLUquadric { - GLint normals; - GLboolean textureCoords; - GLint orientation; - GLint drawStyle; - void (GLAPIENTRY *errorCallback)( GLint ); -}; - -GLUquadric * GLAPIENTRY -gluNewQuadric(void) -{ - GLUquadric *newstate; - - newstate = (GLUquadric *) malloc(sizeof(GLUquadric)); - if (newstate == NULL) { - /* Can't report an error at this point... */ - return NULL; - } - newstate->normals = GLU_SMOOTH; - newstate->textureCoords = GL_FALSE; - newstate->orientation = GLU_OUTSIDE; - newstate->drawStyle = GLU_FILL; - newstate->errorCallback = NULL; - return newstate; -} - - -void GLAPIENTRY -gluDeleteQuadric(GLUquadric *state) -{ - free(state); -} - -static void gluQuadricError(GLUquadric *qobj, GLenum which) -{ - if (qobj->errorCallback) { - qobj->errorCallback(which); - } -} - -void GLAPIENTRY -gluQuadricCallback(GLUquadric *qobj, GLenum which, - GLvoid (GLAPIENTRY *fn)(GLvoid)) -{ - switch (which) { - case GLU_ERROR: - qobj->errorCallback = (void (GLAPIENTRY *)(GLint)) fn; - break; - default: - gluQuadricError(qobj, GLU_INVALID_ENUM); - return; - } -} - -void GLAPIENTRY -gluQuadricNormals(GLUquadric *qobj, GLenum normals) -{ - switch (normals) { - case GLU_SMOOTH: - case GLU_FLAT: - case GLU_NONE: - break; - default: - gluQuadricError(qobj, GLU_INVALID_ENUM); - return; - } - qobj->normals = normals; -} - -void GLAPIENTRY -gluQuadricTexture(GLUquadric *qobj, GLboolean textureCoords) -{ - qobj->textureCoords = textureCoords; -} - -void GLAPIENTRY -gluQuadricOrientation(GLUquadric *qobj, GLenum orientation) -{ - switch(orientation) { - case GLU_OUTSIDE: - case GLU_INSIDE: - break; - default: - gluQuadricError(qobj, GLU_INVALID_ENUM); - return; - } - qobj->orientation = orientation; -} - -void GLAPIENTRY -gluQuadricDrawStyle(GLUquadric *qobj, GLenum drawStyle) -{ - switch(drawStyle) { - case GLU_POINT: - case GLU_LINE: - case GLU_FILL: - case GLU_SILHOUETTE: - break; - default: - gluQuadricError(qobj, GLU_INVALID_ENUM); - return; - } - qobj->drawStyle = drawStyle; -} - -void GLAPIENTRY -gluCylinder(GLUquadric *qobj, GLdouble baseRadius, GLdouble topRadius, - GLdouble height, GLint slices, GLint stacks) -{ - GLint i, j; - GLfloat sinCache[CACHE_SIZE]; - GLfloat cosCache[CACHE_SIZE]; - GLfloat sinCache2[CACHE_SIZE]; - GLfloat cosCache2[CACHE_SIZE]; - GLfloat sinCache3[CACHE_SIZE]; - GLfloat cosCache3[CACHE_SIZE]; - GLfloat angle; - GLfloat zLow, zHigh; - GLfloat sintemp, costemp; - GLfloat length; - GLfloat deltaRadius; - GLfloat zNormal; - GLfloat xyNormalRatio; - GLfloat radiusLow, radiusHigh; - int needCache2, needCache3; - - if (slices >= CACHE_SIZE) slices = CACHE_SIZE-1; - - if (slices < 2 || stacks < 1 || baseRadius < 0.0 || topRadius < 0.0 || - height < 0.0) { - gluQuadricError(qobj, GLU_INVALID_VALUE); - return; - } - - /* Compute length (needed for normal calculations) */ - deltaRadius = baseRadius - topRadius; - length = SQRT(deltaRadius*deltaRadius + height*height); - if (length == 0.0) { - gluQuadricError(qobj, GLU_INVALID_VALUE); - return; - } - - /* Cache is the vertex locations cache */ - /* Cache2 is the various normals at the vertices themselves */ - /* Cache3 is the various normals for the faces */ - needCache2 = needCache3 = 0; - if (qobj->normals == GLU_SMOOTH) { - needCache2 = 1; - } - - if (qobj->normals == GLU_FLAT) { - if (qobj->drawStyle != GLU_POINT) { - needCache3 = 1; - } - if (qobj->drawStyle == GLU_LINE) { - needCache2 = 1; - } - } - - zNormal = deltaRadius / length; - xyNormalRatio = height / length; - - for (i = 0; i < slices; i++) { - angle = 2 * PI * i / slices; - if (needCache2) { - if (qobj->orientation == GLU_OUTSIDE) { - sinCache2[i] = xyNormalRatio * SIN(angle); - cosCache2[i] = xyNormalRatio * COS(angle); - } else { - sinCache2[i] = -xyNormalRatio * SIN(angle); - cosCache2[i] = -xyNormalRatio * COS(angle); - } - } - sinCache[i] = SIN(angle); - cosCache[i] = COS(angle); - } - - if (needCache3) { - for (i = 0; i < slices; i++) { - angle = 2 * PI * (i-0.5) / slices; - if (qobj->orientation == GLU_OUTSIDE) { - sinCache3[i] = xyNormalRatio * SIN(angle); - cosCache3[i] = xyNormalRatio * COS(angle); - } else { - sinCache3[i] = -xyNormalRatio * SIN(angle); - cosCache3[i] = -xyNormalRatio * COS(angle); - } - } - } - - sinCache[slices] = sinCache[0]; - cosCache[slices] = cosCache[0]; - if (needCache2) { - sinCache2[slices] = sinCache2[0]; - cosCache2[slices] = cosCache2[0]; - } - if (needCache3) { - sinCache3[slices] = sinCache3[0]; - cosCache3[slices] = cosCache3[0]; - } - - switch (qobj->drawStyle) { - case GLU_FILL: - /* Note: - ** An argument could be made for using a TRIANGLE_FAN for the end - ** of the cylinder of either radii is 0.0 (a cone). However, a - ** TRIANGLE_FAN would not work in smooth shading mode (the common - ** case) because the normal for the apex is different for every - ** triangle (and TRIANGLE_FAN doesn't let me respecify that normal). - ** Now, my choice is GL_TRIANGLES, or leave the GL_QUAD_STRIP and - ** just let the GL trivially reject one of the two triangles of the - ** QUAD. GL_QUAD_STRIP is probably faster, so I will leave this code - ** alone. - */ - for (j = 0; j < stacks; j++) { - zLow = j * height / stacks; - zHigh = (j + 1) * height / stacks; - radiusLow = baseRadius - deltaRadius * ((float) j / stacks); - radiusHigh = baseRadius - deltaRadius * ((float) (j + 1) / stacks); - - glBegin(GL_QUAD_STRIP); - for (i = 0; i <= slices; i++) { - switch(qobj->normals) { - case GLU_FLAT: - glNormal3f(sinCache3[i], cosCache3[i], zNormal); - break; - case GLU_SMOOTH: - glNormal3f(sinCache2[i], cosCache2[i], zNormal); - break; - case GLU_NONE: - default: - break; - } - if (qobj->orientation == GLU_OUTSIDE) { - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - (float) j / stacks); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], zLow); - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - (float) (j+1) / stacks); - } - glVertex3f(radiusHigh * sinCache[i], - radiusHigh * cosCache[i], zHigh); - } else { - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - (float) (j+1) / stacks); - } - glVertex3f(radiusHigh * sinCache[i], - radiusHigh * cosCache[i], zHigh); - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - (float) j / stacks); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], zLow); - } - } - glEnd(); - } - break; - case GLU_POINT: - glBegin(GL_POINTS); - for (i = 0; i < slices; i++) { - switch(qobj->normals) { - case GLU_FLAT: - case GLU_SMOOTH: - glNormal3f(sinCache2[i], cosCache2[i], zNormal); - break; - case GLU_NONE: - default: - break; - } - sintemp = sinCache[i]; - costemp = cosCache[i]; - for (j = 0; j <= stacks; j++) { - zLow = j * height / stacks; - radiusLow = baseRadius - deltaRadius * ((float) j / stacks); - - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - (float) j / stacks); - } - glVertex3f(radiusLow * sintemp, - radiusLow * costemp, zLow); - } - } - glEnd(); - break; - case GLU_LINE: - for (j = 1; j < stacks; j++) { - zLow = j * height / stacks; - radiusLow = baseRadius - deltaRadius * ((float) j / stacks); - - glBegin(GL_LINE_STRIP); - for (i = 0; i <= slices; i++) { - switch(qobj->normals) { - case GLU_FLAT: - glNormal3f(sinCache3[i], cosCache3[i], zNormal); - break; - case GLU_SMOOTH: - glNormal3f(sinCache2[i], cosCache2[i], zNormal); - break; - case GLU_NONE: - default: - break; - } - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - (float) j / stacks); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], zLow); - } - glEnd(); - } - /* Intentionally fall through here... */ - case GLU_SILHOUETTE: - for (j = 0; j <= stacks; j += stacks) { - zLow = j * height / stacks; - radiusLow = baseRadius - deltaRadius * ((float) j / stacks); - - glBegin(GL_LINE_STRIP); - for (i = 0; i <= slices; i++) { - switch(qobj->normals) { - case GLU_FLAT: - glNormal3f(sinCache3[i], cosCache3[i], zNormal); - break; - case GLU_SMOOTH: - glNormal3f(sinCache2[i], cosCache2[i], zNormal); - break; - case GLU_NONE: - default: - break; - } - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - (float) j / stacks); - } - glVertex3f(radiusLow * sinCache[i], radiusLow * cosCache[i], - zLow); - } - glEnd(); - } - for (i = 0; i < slices; i++) { - switch(qobj->normals) { - case GLU_FLAT: - case GLU_SMOOTH: - glNormal3f(sinCache2[i], cosCache2[i], 0.0); - break; - case GLU_NONE: - default: - break; - } - sintemp = sinCache[i]; - costemp = cosCache[i]; - glBegin(GL_LINE_STRIP); - for (j = 0; j <= stacks; j++) { - zLow = j * height / stacks; - radiusLow = baseRadius - deltaRadius * ((float) j / stacks); - - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - (float) j / stacks); - } - glVertex3f(radiusLow * sintemp, - radiusLow * costemp, zLow); - } - glEnd(); - } - break; - default: - break; - } -} - -void GLAPIENTRY -gluDisk(GLUquadric *qobj, GLdouble innerRadius, GLdouble outerRadius, - GLint slices, GLint loops) -{ - gluPartialDisk(qobj, innerRadius, outerRadius, slices, loops, 0.0, 360.0); -} - -void GLAPIENTRY -gluPartialDisk(GLUquadric *qobj, GLdouble innerRadius, - GLdouble outerRadius, GLint slices, GLint loops, - GLdouble startAngle, GLdouble sweepAngle) -{ - GLint i, j; - GLfloat sinCache[CACHE_SIZE]; - GLfloat cosCache[CACHE_SIZE]; - GLfloat angle; - GLfloat sintemp, costemp; - GLfloat deltaRadius; - GLfloat radiusLow, radiusHigh; - GLfloat texLow = 0, texHigh = 0; - GLfloat angleOffset; - GLint slices2; - GLint finish; - - if (slices >= CACHE_SIZE) slices = CACHE_SIZE-1; - if (slices < 2 || loops < 1 || outerRadius <= 0.0 || innerRadius < 0.0 || - innerRadius > outerRadius) { - gluQuadricError(qobj, GLU_INVALID_VALUE); - return; - } - - if (sweepAngle < -360.0) sweepAngle = 360.0; - if (sweepAngle > 360.0) sweepAngle = 360.0; - if (sweepAngle < 0) { - startAngle += sweepAngle; - sweepAngle = -sweepAngle; - } - - if (sweepAngle == 360.0) { - slices2 = slices; - } else { - slices2 = slices + 1; - } - - /* Compute length (needed for normal calculations) */ - deltaRadius = outerRadius - innerRadius; - - /* Cache is the vertex locations cache */ - - angleOffset = startAngle / 180.0 * PI; - for (i = 0; i <= slices; i++) { - angle = angleOffset + ((PI * sweepAngle) / 180.0) * i / slices; - sinCache[i] = SIN(angle); - cosCache[i] = COS(angle); - } - - if (sweepAngle == 360.0) { - sinCache[slices] = sinCache[0]; - cosCache[slices] = cosCache[0]; - } - - switch(qobj->normals) { - case GLU_FLAT: - case GLU_SMOOTH: - if (qobj->orientation == GLU_OUTSIDE) { - glNormal3f(0.0, 0.0, 1.0); - } else { - glNormal3f(0.0, 0.0, -1.0); - } - break; - default: - case GLU_NONE: - break; - } - - switch (qobj->drawStyle) { - case GLU_FILL: - if (innerRadius == 0.0) { - finish = loops - 1; - /* Triangle strip for inner polygons */ - glBegin(GL_TRIANGLE_FAN); - if (qobj->textureCoords) { - glTexCoord2f(0.5, 0.5); - } - glVertex3f(0.0, 0.0, 0.0); - radiusLow = outerRadius - - deltaRadius * ((float) (loops-1) / loops); - if (qobj->textureCoords) { - texLow = radiusLow / outerRadius / 2; - } - - if (qobj->orientation == GLU_OUTSIDE) { - for (i = slices; i >= 0; i--) { - if (qobj->textureCoords) { - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], 0.0); - } - } else { - for (i = 0; i <= slices; i++) { - if (qobj->textureCoords) { - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], 0.0); - } - } - glEnd(); - } else { - finish = loops; - } - for (j = 0; j < finish; j++) { - radiusLow = outerRadius - deltaRadius * ((float) j / loops); - radiusHigh = outerRadius - deltaRadius * ((float) (j + 1) / loops); - if (qobj->textureCoords) { - texLow = radiusLow / outerRadius / 2; - texHigh = radiusHigh / outerRadius / 2; - } - - glBegin(GL_QUAD_STRIP); - for (i = 0; i <= slices; i++) { - if (qobj->orientation == GLU_OUTSIDE) { - if (qobj->textureCoords) { - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], 0.0); - - if (qobj->textureCoords) { - glTexCoord2f(texHigh * sinCache[i] + 0.5, - texHigh * cosCache[i] + 0.5); - } - glVertex3f(radiusHigh * sinCache[i], - radiusHigh * cosCache[i], 0.0); - } else { - if (qobj->textureCoords) { - glTexCoord2f(texHigh * sinCache[i] + 0.5, - texHigh * cosCache[i] + 0.5); - } - glVertex3f(radiusHigh * sinCache[i], - radiusHigh * cosCache[i], 0.0); - - if (qobj->textureCoords) { - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], 0.0); - } - } - glEnd(); - } - break; - case GLU_POINT: - glBegin(GL_POINTS); - for (i = 0; i < slices2; i++) { - sintemp = sinCache[i]; - costemp = cosCache[i]; - for (j = 0; j <= loops; j++) { - radiusLow = outerRadius - deltaRadius * ((float) j / loops); - - if (qobj->textureCoords) { - texLow = radiusLow / outerRadius / 2; - - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sintemp, radiusLow * costemp, 0.0); - } - } - glEnd(); - break; - case GLU_LINE: - if (innerRadius == outerRadius) { - glBegin(GL_LINE_STRIP); - - for (i = 0; i <= slices; i++) { - if (qobj->textureCoords) { - glTexCoord2f(sinCache[i] / 2 + 0.5, - cosCache[i] / 2 + 0.5); - } - glVertex3f(innerRadius * sinCache[i], - innerRadius * cosCache[i], 0.0); - } - glEnd(); - break; - } - for (j = 0; j <= loops; j++) { - radiusLow = outerRadius - deltaRadius * ((float) j / loops); - if (qobj->textureCoords) { - texLow = radiusLow / outerRadius / 2; - } - - glBegin(GL_LINE_STRIP); - for (i = 0; i <= slices; i++) { - if (qobj->textureCoords) { - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], 0.0); - } - glEnd(); - } - for (i=0; i < slices2; i++) { - sintemp = sinCache[i]; - costemp = cosCache[i]; - glBegin(GL_LINE_STRIP); - for (j = 0; j <= loops; j++) { - radiusLow = outerRadius - deltaRadius * ((float) j / loops); - if (qobj->textureCoords) { - texLow = radiusLow / outerRadius / 2; - } - - if (qobj->textureCoords) { - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sintemp, radiusLow * costemp, 0.0); - } - glEnd(); - } - break; - case GLU_SILHOUETTE: - if (sweepAngle < 360.0) { - for (i = 0; i <= slices; i+= slices) { - sintemp = sinCache[i]; - costemp = cosCache[i]; - glBegin(GL_LINE_STRIP); - for (j = 0; j <= loops; j++) { - radiusLow = outerRadius - deltaRadius * ((float) j / loops); - - if (qobj->textureCoords) { - texLow = radiusLow / outerRadius / 2; - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sintemp, radiusLow * costemp, 0.0); - } - glEnd(); - } - } - for (j = 0; j <= loops; j += loops) { - radiusLow = outerRadius - deltaRadius * ((float) j / loops); - if (qobj->textureCoords) { - texLow = radiusLow / outerRadius / 2; - } - - glBegin(GL_LINE_STRIP); - for (i = 0; i <= slices; i++) { - if (qobj->textureCoords) { - glTexCoord2f(texLow * sinCache[i] + 0.5, - texLow * cosCache[i] + 0.5); - } - glVertex3f(radiusLow * sinCache[i], - radiusLow * cosCache[i], 0.0); - } - glEnd(); - if (innerRadius == outerRadius) break; - } - break; - default: - break; - } -} - -void GLAPIENTRY -gluSphere(GLUquadric *qobj, GLdouble radius, GLint slices, GLint stacks) -{ - GLint i, j; - GLfloat sinCache1a[CACHE_SIZE]; - GLfloat cosCache1a[CACHE_SIZE]; - GLfloat sinCache2a[CACHE_SIZE]; - GLfloat cosCache2a[CACHE_SIZE]; - GLfloat sinCache3a[CACHE_SIZE]; - GLfloat cosCache3a[CACHE_SIZE]; - GLfloat sinCache1b[CACHE_SIZE]; - GLfloat cosCache1b[CACHE_SIZE]; - GLfloat sinCache2b[CACHE_SIZE]; - GLfloat cosCache2b[CACHE_SIZE]; - GLfloat sinCache3b[CACHE_SIZE]; - GLfloat cosCache3b[CACHE_SIZE]; - GLfloat angle; - GLfloat zLow, zHigh; - GLfloat sintemp1, sintemp2 = 0, sintemp3 = 0, sintemp4 = 0; - GLfloat costemp1, costemp2 = 0, costemp3 = 0, costemp4 = 0; - GLboolean needCache2, needCache3; - GLint start, finish; - - if (slices >= CACHE_SIZE) slices = CACHE_SIZE-1; - if (stacks >= CACHE_SIZE) stacks = CACHE_SIZE-1; - if (slices < 2 || stacks < 1 || radius < 0.0) { - gluQuadricError(qobj, GLU_INVALID_VALUE); - return; - } - - /* Cache is the vertex locations cache */ - /* Cache2 is the various normals at the vertices themselves */ - /* Cache3 is the various normals for the faces */ - needCache2 = needCache3 = GL_FALSE; - - if (qobj->normals == GLU_SMOOTH) { - needCache2 = GL_TRUE; - } - - if (qobj->normals == GLU_FLAT) { - if (qobj->drawStyle != GLU_POINT) { - needCache3 = GL_TRUE; - } - if (qobj->drawStyle == GLU_LINE) { - needCache2 = GL_TRUE; - } - } - - for (i = 0; i < slices; i++) { - angle = 2 * PI * i / slices; - sinCache1a[i] = SIN(angle); - cosCache1a[i] = COS(angle); - if (needCache2) { - sinCache2a[i] = sinCache1a[i]; - cosCache2a[i] = cosCache1a[i]; - } - } - - for (j = 0; j <= stacks; j++) { - angle = PI * j / stacks; - if (needCache2) { - if (qobj->orientation == GLU_OUTSIDE) { - sinCache2b[j] = SIN(angle); - cosCache2b[j] = COS(angle); - } else { - sinCache2b[j] = -SIN(angle); - cosCache2b[j] = -COS(angle); - } - } - sinCache1b[j] = radius * SIN(angle); - cosCache1b[j] = radius * COS(angle); - } - /* Make sure it comes to a point */ - sinCache1b[0] = 0; - sinCache1b[stacks] = 0; - - if (needCache3) { - for (i = 0; i < slices; i++) { - angle = 2 * PI * (i-0.5) / slices; - sinCache3a[i] = SIN(angle); - cosCache3a[i] = COS(angle); - } - for (j = 0; j <= stacks; j++) { - angle = PI * (j - 0.5) / stacks; - if (qobj->orientation == GLU_OUTSIDE) { - sinCache3b[j] = SIN(angle); - cosCache3b[j] = COS(angle); - } else { - sinCache3b[j] = -SIN(angle); - cosCache3b[j] = -COS(angle); - } - } - } - - sinCache1a[slices] = sinCache1a[0]; - cosCache1a[slices] = cosCache1a[0]; - if (needCache2) { - sinCache2a[slices] = sinCache2a[0]; - cosCache2a[slices] = cosCache2a[0]; - } - if (needCache3) { - sinCache3a[slices] = sinCache3a[0]; - cosCache3a[slices] = cosCache3a[0]; - } - - switch (qobj->drawStyle) { - case GLU_FILL: - /* Do ends of sphere as TRIANGLE_FAN's (if not texturing) - ** We don't do it when texturing because we need to respecify the - ** texture coordinates of the apex for every adjacent vertex (because - ** it isn't a constant for that point) - */ - if (!(qobj->textureCoords)) { - start = 1; - finish = stacks - 1; - - /* Low end first (j == 0 iteration) */ - sintemp2 = sinCache1b[1]; - zHigh = cosCache1b[1]; - switch(qobj->normals) { - case GLU_FLAT: - sintemp3 = sinCache3b[1]; - costemp3 = cosCache3b[1]; - break; - case GLU_SMOOTH: - sintemp3 = sinCache2b[1]; - costemp3 = cosCache2b[1]; - glNormal3f(sinCache2a[0] * sinCache2b[0], - cosCache2a[0] * sinCache2b[0], - cosCache2b[0]); - break; - default: - break; - } - glBegin(GL_TRIANGLE_FAN); - glVertex3f(0.0, 0.0, radius); - if (qobj->orientation == GLU_OUTSIDE) { - for (i = slices; i >= 0; i--) { - switch(qobj->normals) { - case GLU_SMOOTH: - glNormal3f(sinCache2a[i] * sintemp3, - cosCache2a[i] * sintemp3, - costemp3); - break; - case GLU_FLAT: - if (i != slices) { - glNormal3f(sinCache3a[i+1] * sintemp3, - cosCache3a[i+1] * sintemp3, - costemp3); - } - break; - case GLU_NONE: - default: - break; - } - glVertex3f(sintemp2 * sinCache1a[i], - sintemp2 * cosCache1a[i], zHigh); - } - } else { - for (i = 0; i <= slices; i++) { - switch(qobj->normals) { - case GLU_SMOOTH: - glNormal3f(sinCache2a[i] * sintemp3, - cosCache2a[i] * sintemp3, - costemp3); - break; - case GLU_FLAT: - glNormal3f(sinCache3a[i] * sintemp3, - cosCache3a[i] * sintemp3, - costemp3); - break; - case GLU_NONE: - default: - break; - } - glVertex3f(sintemp2 * sinCache1a[i], - sintemp2 * cosCache1a[i], zHigh); - } - } - glEnd(); - - /* High end next (j == stacks-1 iteration) */ - sintemp2 = sinCache1b[stacks-1]; - zHigh = cosCache1b[stacks-1]; - switch(qobj->normals) { - case GLU_FLAT: - sintemp3 = sinCache3b[stacks]; - costemp3 = cosCache3b[stacks]; - break; - case GLU_SMOOTH: - sintemp3 = sinCache2b[stacks-1]; - costemp3 = cosCache2b[stacks-1]; - glNormal3f(sinCache2a[stacks] * sinCache2b[stacks], - cosCache2a[stacks] * sinCache2b[stacks], - cosCache2b[stacks]); - break; - default: - break; - } - glBegin(GL_TRIANGLE_FAN); - glVertex3f(0.0, 0.0, -radius); - if (qobj->orientation == GLU_OUTSIDE) { - for (i = 0; i <= slices; i++) { - switch(qobj->normals) { - case GLU_SMOOTH: - glNormal3f(sinCache2a[i] * sintemp3, - cosCache2a[i] * sintemp3, - costemp3); - break; - case GLU_FLAT: - glNormal3f(sinCache3a[i] * sintemp3, - cosCache3a[i] * sintemp3, - costemp3); - break; - case GLU_NONE: - default: - break; - } - glVertex3f(sintemp2 * sinCache1a[i], - sintemp2 * cosCache1a[i], zHigh); - } - } else { - for (i = slices; i >= 0; i--) { - switch(qobj->normals) { - case GLU_SMOOTH: - glNormal3f(sinCache2a[i] * sintemp3, - cosCache2a[i] * sintemp3, - costemp3); - break; - case GLU_FLAT: - if (i != slices) { - glNormal3f(sinCache3a[i+1] * sintemp3, - cosCache3a[i+1] * sintemp3, - costemp3); - } - break; - case GLU_NONE: - default: - break; - } - glVertex3f(sintemp2 * sinCache1a[i], - sintemp2 * cosCache1a[i], zHigh); - } - } - glEnd(); - } else { - start = 0; - finish = stacks; - } - for (j = start; j < finish; j++) { - zLow = cosCache1b[j]; - zHigh = cosCache1b[j+1]; - sintemp1 = sinCache1b[j]; - sintemp2 = sinCache1b[j+1]; - switch(qobj->normals) { - case GLU_FLAT: - sintemp4 = sinCache3b[j+1]; - costemp4 = cosCache3b[j+1]; - break; - case GLU_SMOOTH: - if (qobj->orientation == GLU_OUTSIDE) { - sintemp3 = sinCache2b[j+1]; - costemp3 = cosCache2b[j+1]; - sintemp4 = sinCache2b[j]; - costemp4 = cosCache2b[j]; - } else { - sintemp3 = sinCache2b[j]; - costemp3 = cosCache2b[j]; - sintemp4 = sinCache2b[j+1]; - costemp4 = cosCache2b[j+1]; - } - break; - default: - break; - } - - glBegin(GL_QUAD_STRIP); - for (i = 0; i <= slices; i++) { - switch(qobj->normals) { - case GLU_SMOOTH: - glNormal3f(sinCache2a[i] * sintemp3, - cosCache2a[i] * sintemp3, - costemp3); - break; - case GLU_FLAT: - case GLU_NONE: - default: - break; - } - if (qobj->orientation == GLU_OUTSIDE) { - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - 1 - (float) (j+1) / stacks); - } - glVertex3f(sintemp2 * sinCache1a[i], - sintemp2 * cosCache1a[i], zHigh); - } else { - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - 1 - (float) j / stacks); - } - glVertex3f(sintemp1 * sinCache1a[i], - sintemp1 * cosCache1a[i], zLow); - } - switch(qobj->normals) { - case GLU_SMOOTH: - glNormal3f(sinCache2a[i] * sintemp4, - cosCache2a[i] * sintemp4, - costemp4); - break; - case GLU_FLAT: - glNormal3f(sinCache3a[i] * sintemp4, - cosCache3a[i] * sintemp4, - costemp4); - break; - case GLU_NONE: - default: - break; - } - if (qobj->orientation == GLU_OUTSIDE) { - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - 1 - (float) j / stacks); - } - glVertex3f(sintemp1 * sinCache1a[i], - sintemp1 * cosCache1a[i], zLow); - } else { - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - 1 - (float) (j+1) / stacks); - } - glVertex3f(sintemp2 * sinCache1a[i], - sintemp2 * cosCache1a[i], zHigh); - } - } - glEnd(); - } - break; - case GLU_POINT: - glBegin(GL_POINTS); - for (j = 0; j <= stacks; j++) { - sintemp1 = sinCache1b[j]; - costemp1 = cosCache1b[j]; - switch(qobj->normals) { - case GLU_FLAT: - case GLU_SMOOTH: - sintemp2 = sinCache2b[j]; - costemp2 = cosCache2b[j]; - break; - default: - break; - } - for (i = 0; i < slices; i++) { - switch(qobj->normals) { - case GLU_FLAT: - case GLU_SMOOTH: - glNormal3f(sinCache2a[i] * sintemp2, - cosCache2a[i] * sintemp2, - costemp2); - break; - case GLU_NONE: - default: - break; - } - - zLow = j * radius / stacks; - - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - 1 - (float) j / stacks); - } - glVertex3f(sintemp1 * sinCache1a[i], - sintemp1 * cosCache1a[i], costemp1); - } - } - glEnd(); - break; - case GLU_LINE: - case GLU_SILHOUETTE: - for (j = 1; j < stacks; j++) { - sintemp1 = sinCache1b[j]; - costemp1 = cosCache1b[j]; - switch(qobj->normals) { - case GLU_FLAT: - case GLU_SMOOTH: - sintemp2 = sinCache2b[j]; - costemp2 = cosCache2b[j]; - break; - default: - break; - } - - glBegin(GL_LINE_STRIP); - for (i = 0; i <= slices; i++) { - switch(qobj->normals) { - case GLU_FLAT: - glNormal3f(sinCache3a[i] * sintemp2, - cosCache3a[i] * sintemp2, - costemp2); - break; - case GLU_SMOOTH: - glNormal3f(sinCache2a[i] * sintemp2, - cosCache2a[i] * sintemp2, - costemp2); - break; - case GLU_NONE: - default: - break; - } - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - 1 - (float) j / stacks); - } - glVertex3f(sintemp1 * sinCache1a[i], - sintemp1 * cosCache1a[i], costemp1); - } - glEnd(); - } - for (i = 0; i < slices; i++) { - sintemp1 = sinCache1a[i]; - costemp1 = cosCache1a[i]; - switch(qobj->normals) { - case GLU_FLAT: - case GLU_SMOOTH: - sintemp2 = sinCache2a[i]; - costemp2 = cosCache2a[i]; - break; - default: - break; - } - - glBegin(GL_LINE_STRIP); - for (j = 0; j <= stacks; j++) { - switch(qobj->normals) { - case GLU_FLAT: - glNormal3f(sintemp2 * sinCache3b[j], - costemp2 * sinCache3b[j], - cosCache3b[j]); - break; - case GLU_SMOOTH: - glNormal3f(sintemp2 * sinCache2b[j], - costemp2 * sinCache2b[j], - cosCache2b[j]); - break; - case GLU_NONE: - default: - break; - } - - if (qobj->textureCoords) { - glTexCoord2f(1 - (float) i / slices, - 1 - (float) j / stacks); - } - glVertex3f(sintemp1 * sinCache1b[j], - costemp1 * sinCache1b[j], cosCache1b[j]); - } - glEnd(); - } - break; - default: - break; - } -} -- cgit v1.2.3