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Diffstat (limited to 'progs/samples/eval.c')
-rw-r--r-- | progs/samples/eval.c | 472 |
1 files changed, 0 insertions, 472 deletions
diff --git a/progs/samples/eval.c b/progs/samples/eval.c deleted file mode 100644 index 3ad9c5468f..0000000000 --- a/progs/samples/eval.c +++ /dev/null @@ -1,472 +0,0 @@ -/* - * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the name of - * Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF - * ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glut.h> - - -#define VORDER 10 -#define CORDER 10 -#define TORDER 3 - -#define VMAJOR_ORDER 2 -#define VMINOR_ORDER 3 - -#define CMAJOR_ORDER 2 -#define CMINOR_ORDER 2 - -#define TMAJOR_ORDER 2 -#define TMINOR_ORDER 2 - -#define VDIM 4 -#define CDIM 4 -#define TDIM 2 - -#define ONE_D 1 -#define TWO_D 2 - -#define EVAL 3 -#define MESH 4 - - -GLenum doubleBuffer; - -float rotX = 0.0, rotY = 0.0, translateZ = -1.0; - -GLenum arrayType = ONE_D; -GLenum colorType = GL_FALSE; -GLenum textureType = GL_FALSE; -GLenum polygonFilled = GL_FALSE; -GLenum lighting = GL_FALSE; -GLenum mapPoint = GL_FALSE; -GLenum mapType = EVAL; - -double point1[10*4] = { - -0.5, 0.0, 0.0, 1.0, - -0.4, 0.5, 0.0, 1.0, - -0.3,-0.5, 0.0, 1.0, - -0.2, 0.5, 0.0, 1.0, - -0.1,-0.5, 0.0, 1.0, - 0.0, 0.5, 0.0, 1.0, - 0.1,-0.5, 0.0, 1.0, - 0.2, 0.5, 0.0, 1.0, - 0.3,-0.5, 0.0, 1.0, - 0.4, 0.0, 0.0, 1.0, -}; -double cpoint1[10*4] = { - 0.0, 0.0, 1.0, 1.0, - 0.3, 0.0, 0.7, 1.0, - 0.6, 0.0, 0.3, 1.0, - 1.0, 0.0, 0.0, 1.0, - 1.0, 0.3, 0.0, 1.0, - 1.0, 0.6, 0.0, 1.0, - 1.0, 1.0, 0.0, 1.0, - 1.0, 1.0, 0.5, 1.0, - 1.0, 1.0, 1.0, 1.0, -}; -double tpoint1[11*4] = { - 0.0, 0.0, 0.0, 1.0, - 0.0, 0.1, 0.0, 1.0, - 0.0, 0.2, 0.0, 1.0, - 0.0, 0.3, 0.0, 1.0, - 0.0, 0.4, 0.0, 1.0, - 0.0, 0.5, 0.0, 1.0, - 0.0, 0.6, 0.0, 1.0, - 0.0, 0.7, 0.0, 1.0, - 0.0, 0.8, 0.0, 1.0, - 0.0, 0.9, 0.0, 1.0, -}; -double point2[2*3*4] = { - -0.5, -0.5, 0.5, 1.0, - 0.0, 1.0, 0.5, 1.0, - 0.5, -0.5, 0.5, 1.0, - -0.5, 0.5, -0.5, 1.0, - 0.0, -1.0, -0.5, 1.0, - 0.5, 0.5, -0.5, 1.0, -}; -double cpoint2[2*2*4] = { - 0.0, 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, 1.0, - 0.0, 1.0, 0.0, 1.0, - 1.0, 1.0, 1.0, 1.0, -}; -double tpoint2[2*2*2] = { - 0.0, 0.0, 0.0, 1.0, - 1.0, 0.0, 1.0, 1.0, -}; -float textureImage[4*2*4] = { - 1.0, 1.0, 1.0, 1.0, - 1.0, 0.0, 0.0, 1.0, - 1.0, 0.0, 0.0, 1.0, - 1.0, 1.0, 1.0, 1.0, - 1.0, 1.0, 1.0, 1.0, - 1.0, 0.0, 0.0, 1.0, - 1.0, 0.0, 0.0, 1.0, - 1.0, 1.0, 1.0, 1.0, -}; - - -static void Init(void) -{ - static float ambient[] = {0.1, 0.1, 0.1, 1.0}; - static float diffuse[] = {1.0, 1.0, 1.0, 1.0}; - static float position[] = {0.0, 0.0, -150.0, 0.0}; - static float front_mat_diffuse[] = {1.0, 0.2, 1.0, 1.0}; - static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0}; - static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0}; - static float lmodel_twoside[] = {GL_TRUE}; - static float decal[] = {GL_DECAL}; - static float repeat[] = {GL_REPEAT}; - static float nr[] = {GL_NEAREST}; - - glFrontFace(GL_CCW); - - glEnable(GL_DEPTH_TEST); - - glMap1d(GL_MAP1_VERTEX_4, 0.0, 1.0, VDIM, VORDER, point1); - glMap1d(GL_MAP1_COLOR_4, 0.0, 1.0, CDIM, CORDER, cpoint1); - - glMap2d(GL_MAP2_VERTEX_4, 0.0, 1.0, VMINOR_ORDER*VDIM, VMAJOR_ORDER, 0.0, - 1.0, VDIM, VMINOR_ORDER, point2); - glMap2d(GL_MAP2_COLOR_4, 0.0, 1.0, CMINOR_ORDER*CDIM, CMAJOR_ORDER, 0.0, - 1.0, CDIM, CMINOR_ORDER, cpoint2); - glMap2d(GL_MAP2_TEXTURE_COORD_2, 0.0, 1.0, TMINOR_ORDER*TDIM, - TMAJOR_ORDER, 0.0, 1.0, TDIM, TMINOR_ORDER, tpoint2); - - glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); - glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); - glLightfv(GL_LIGHT0, GL_POSITION, position); - - glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse); - glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse); - - glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); - glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); - - glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal); - glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat); - glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat); - glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nr); - glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nr); - glTexImage2D(GL_TEXTURE_2D, 0, 4, 2, 4, 0, GL_RGBA, GL_FLOAT, - (GLvoid *)textureImage); -} - -static void DrawPoints1(void) -{ - GLint i; - - glColor3f(0.0, 1.0, 0.0); - glPointSize(2); - glBegin(GL_POINTS); - for (i = 0; i < VORDER; i++) { - glVertex4dv(&point1[i*4]); - } - glEnd(); -} - -static void DrawPoints2(void) -{ - GLint i, j; - - glColor3f(1.0, 0.0, 1.0); - glPointSize(2); - glBegin(GL_POINTS); - for (i = 0; i < VMAJOR_ORDER; i++) { - for (j = 0; j < VMINOR_ORDER; j++) { - glVertex4dv(&point2[i*4*VMINOR_ORDER+j*4]); - } - } - glEnd(); -} - -static void DrawMapEval1(float du) -{ - float u; - - glColor3f(1.0, 0.0, 0.0); - glBegin(GL_LINE_STRIP); - for (u = 0.0; u < 1.0; u += du) { - glEvalCoord1d(u); - } - glEvalCoord1d(1.0); - glEnd(); -} - -static void DrawMapEval2(float du, float dv) -{ - float u, v, tmp; - - glColor3f(1.0, 0.0, 0.0); - for (v = 0.0; v < 1.0; v += dv) { - glBegin(GL_QUAD_STRIP); - for (u = 0.0; u <= 1.0; u += du) { - glEvalCoord2d(u,v); - tmp = (v + dv < 1.0) ? (v + dv) : 1.0; - glEvalCoord2d(u, tmp); - } - glEvalCoord2d(1.0, v); - glEvalCoord2d(1.0, v+dv); - glEnd(); - } -} - -static void RenderEval(void) -{ - - if (colorType) { - glEnable(GL_MAP1_COLOR_4); - glEnable(GL_MAP2_COLOR_4); - } else { - glDisable(GL_MAP1_COLOR_4); - glDisable(GL_MAP2_COLOR_4); - } - - if (textureType) { - glEnable(GL_TEXTURE_2D); - glEnable(GL_MAP2_TEXTURE_COORD_2); - } else { - glDisable(GL_TEXTURE_2D); - glDisable(GL_MAP2_TEXTURE_COORD_2); - } - - if (polygonFilled) { - glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); - } else { - glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); - } - - glShadeModel(GL_SMOOTH); - - switch (mapType) { - case EVAL: - switch (arrayType) { - case ONE_D: - glDisable(GL_MAP2_VERTEX_4); - glEnable(GL_MAP1_VERTEX_4); - DrawPoints1(); - DrawMapEval1(0.1/VORDER); - break; - case TWO_D: - glDisable(GL_MAP1_VERTEX_4); - glEnable(GL_MAP2_VERTEX_4); - DrawPoints2(); - DrawMapEval2(0.1/VMAJOR_ORDER,0.1/VMINOR_ORDER); - break; - default: - break; - } - break; - case MESH: - switch (arrayType) { - case ONE_D: - DrawPoints1(); - glDisable(GL_MAP2_VERTEX_4); - glEnable (GL_MAP1_VERTEX_4); - glColor3f(0.0, 0.0, 1.0); - glMapGrid1d(40, 0.0, 1.0); - if (mapPoint) { - glPointSize(2); - glEvalMesh1(GL_POINT, 0, 40); - } else { - glEvalMesh1(GL_LINE, 0, 40); - } - break; - case TWO_D: - DrawPoints2(); - glDisable(GL_MAP1_VERTEX_4); - glEnable(GL_MAP2_VERTEX_4); - glColor3f(0.0, 0.0, 1.0); - glMapGrid2d(20, 0.0, 1.0, 20, 0.0, 1.0); - if (mapPoint) { - glPointSize(2); - glEvalMesh2(GL_POINT, 0, 20, 0, 20); - } else if (polygonFilled) { - glEvalMesh2(GL_FILL, 0, 20, 0, 20); - } else { - glEvalMesh2(GL_LINE, 0, 20, 0, 20); - } - break; - default: - break; - } - break; - default: - break; - } -} - -static void Reshape(int width, int height) -{ - - glViewport(0, 0, (GLint)width, (GLint)height); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 10.0); - glMatrixMode(GL_MODELVIEW); -} - -static void Key2(int key, int x, int y) -{ - switch (key) { - case GLUT_KEY_LEFT: - rotY -= 30; - break; - case GLUT_KEY_RIGHT: - rotY += 30; - break; - case GLUT_KEY_UP: - rotX -= 30; - break; - case GLUT_KEY_DOWN: - rotX += 30; - break; - default: - return; - } - - glutPostRedisplay(); -} - -static void Key(unsigned char key, int x, int y) -{ - switch (key) { - case 27: - exit(1); - case '1': - arrayType = ONE_D; - break; - case '2': - arrayType = TWO_D; - break; - case 'e': - mapType = EVAL; - break; - case 'm': - mapType = MESH; - break; - case 'f': - polygonFilled = !polygonFilled; - break; - case 'p': - mapPoint = !mapPoint; - break; - case 'c': - colorType = !colorType; - break; - case 't': - textureType = !textureType; - break; - case 'l': - lighting =! lighting; - if (lighting) { - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - glEnable(GL_AUTO_NORMAL); - } else { - glDisable(GL_LIGHTING); - glDisable(GL_LIGHT0); - glDisable(GL_AUTO_NORMAL); - } - break; - default: - return; - } - - glutPostRedisplay(); -} - -static void Draw(void) -{ - - glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); - - glPushMatrix(); - - glTranslatef(0.0, 0.0 , translateZ); - glRotatef(rotX, 1, 0, 0); - glRotatef(rotY, 0, 1, 0); - RenderEval(); - - glPopMatrix(); - - glFlush(); - - if (doubleBuffer) { - glutSwapBuffers(); - } -} - -static GLenum Args(int argc, char **argv) -{ - GLint i; - - doubleBuffer = GL_FALSE; - - for (i = 1; i < argc; i++) { - if (strcmp(argv[i], "-sb") == 0) { - doubleBuffer = GL_FALSE; - } else if (strcmp(argv[i], "-db") == 0) { - doubleBuffer = GL_TRUE; - } else { - printf("%s (Bad option).\n", argv[i]); - return GL_FALSE; - } - } - return GL_TRUE; -} - -int main(int argc, char **argv) -{ - GLenum type; - - glutInit(&argc, argv); - - if (Args(argc, argv) == GL_FALSE) { - exit(1); - } - - glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); - - type = GLUT_RGB | GLUT_DEPTH; - type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; - glutInitDisplayMode(type); - - if (glutCreateWindow("Evaluator Test") == GL_FALSE) { - exit(1); - } - - Init(); - - glutReshapeFunc(Reshape); - glutKeyboardFunc(Key); - glutSpecialFunc(Key2); - glutDisplayFunc(Draw); - glutMainLoop(); - return 0; -} |