diff options
Diffstat (limited to 'progs/redbook/texturesurf.c')
| -rw-r--r-- | progs/redbook/texturesurf.c | 50 |
1 files changed, 32 insertions, 18 deletions
diff --git a/progs/redbook/texturesurf.c b/progs/redbook/texturesurf.c index 89cdbcc6526..0170070eaa5 100644 --- a/progs/redbook/texturesurf.c +++ b/progs/redbook/texturesurf.c @@ -3,14 +3,14 @@ /* * (c) Copyright 1993, Silicon Graphics, Inc. - * ALL RIGHTS RESERVED - * Permission to use, copy, modify, and distribute this software for + * ALL RIGHTS RESERVED + * Permission to use, copy, modify, and distribute this software for * any purpose and without fee is hereby granted, provided that the above * copyright notice appear in all copies and that both the copyright notice - * and this permission notice appear in supporting documentation, and that + * and this permission notice appear in supporting documentation, and that * the name of Silicon Graphics, Inc. not be used in advertising * or publicity pertaining to distribution of the software without specific, - * written prior permission. + * written prior permission. * * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, @@ -24,8 +24,8 @@ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. - * - * US Government Users Restricted Rights + * + * US Government Users Restricted Rights * Use, duplication, or disclosure by the Government is subject to * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph * (c)(1)(ii) of the Rights in Technical Data and Computer Software @@ -47,17 +47,17 @@ #include <math.h> GLfloat ctrlpoints[4][4][3] = { - {{ -1.5, -1.5, 4.0}, { -0.5, -1.5, 2.0}, - {0.5, -1.5, -1.0}, {1.5, -1.5, 2.0}}, - {{ -1.5, -0.5, 1.0}, { -0.5, -0.5, 3.0}, - {0.5, -0.5, 0.0}, {1.5, -0.5, -1.0}}, - {{ -1.5, 0.5, 4.0}, { -0.5, 0.5, 0.0}, - {0.5, 0.5, 3.0}, {1.5, 0.5, 4.0}}, - {{ -1.5, 1.5, -2.0}, { -0.5, 1.5, -2.0}, + {{ -1.5, -1.5, 4.0}, { -0.5, -1.5, 2.0}, + {0.5, -1.5, -1.0}, {1.5, -1.5, 2.0}}, + {{ -1.5, -0.5, 1.0}, { -0.5, -0.5, 3.0}, + {0.5, -0.5, 0.0}, {1.5, -0.5, -1.0}}, + {{ -1.5, 0.5, 4.0}, { -0.5, 0.5, 0.0}, + {0.5, 0.5, 3.0}, {1.5, 0.5, 4.0}}, + {{ -1.5, 1.5, -2.0}, { -0.5, 1.5, -2.0}, {0.5, 1.5, 0.0}, {1.5, 1.5, -1.0}} }; -GLfloat texpts[2][2][2] = {{{0.0, 0.0}, {0.0, 1.0}}, +GLfloat texpts[2][2][2] = {{{0.0, 0.0}, {0.0, 1.0}}, {{1.0, 0.0}, {1.0, 1.0}}}; void display(void) @@ -76,7 +76,7 @@ void makeImage(void) { int i, j; float ti, tj; - + for (i = 0; i < imageWidth; i++) { ti = 2.0*3.14159265*i/imageWidth; for (j = 0; j < imageHeight; j++) { @@ -93,7 +93,7 @@ void myinit(void) { glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &ctrlpoints[0][0][0]); - glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, + glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, 0, 1, 4, 2, &texpts[0][0][0]); glEnable(GL_MAP2_TEXTURE_COORD_2); glEnable(GL_MAP2_VERTEX_3); @@ -118,16 +118,29 @@ void myReshape(int w, int h) glMatrixMode(GL_PROJECTION); glLoadIdentity(); if (w <= h) - glOrtho(-4.0, 4.0, -4.0*(GLfloat)h/(GLfloat)w, + glOrtho(-4.0, 4.0, -4.0*(GLfloat)h/(GLfloat)w, 4.0*(GLfloat)h/(GLfloat)w, -4.0, 4.0); else - glOrtho(-4.0*(GLfloat)w/(GLfloat)h, + glOrtho(-4.0*(GLfloat)w/(GLfloat)h, 4.0*(GLfloat)w/(GLfloat)h, -4.0, 4.0, -4.0, 4.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glRotatef(85.0, 1.0, 1.0, 1.0); } +static void +key(unsigned char k, int x, int y) +{ + switch (k) { + case 27: /* Escape */ + exit(0); + break; + default: + return; + } + glutPostRedisplay(); +} + int main(int argc, char** argv) { glutInit(&argc, argv); @@ -136,6 +149,7 @@ int main(int argc, char** argv) myinit(); glutReshapeFunc (myReshape); glutDisplayFunc(display); + glutKeyboardFunc(key); glutMainLoop(); return 0; /* ANSI C requires main to return int. */ } |