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Diffstat (limited to 'progs/tests/lineclip.c')
| -rw-r--r-- | progs/tests/lineclip.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/progs/tests/lineclip.c b/progs/tests/lineclip.c deleted file mode 100644 index bb688c04a5..0000000000 --- a/progs/tests/lineclip.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * Copyright © 2008 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - * - * Authors: - * Eric Anholt <eric@anholt.net> - * - */ - -#include <stdlib.h> -#include <GL/glew.h> -#include <GL/glut.h> - -static int win_width, win_height; - -static void -line(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) -{ - glBegin(GL_LINES); - glVertex2f(x1, y1); - glVertex2f(x2, y2); - glEnd(); -} - -static void -line3(GLfloat x1, GLfloat y1, GLfloat z1, GLfloat x2, GLfloat y2, GLfloat z2) -{ - glBegin(GL_LINES); - glVertex3f(x1, y1, z1); - glVertex3f(x2, y2, z2); - glEnd(); -} - -static void -display(void) -{ - glClearColor(0.0, 0.0, 0.0, 0.0); - glClear(GL_COLOR_BUFFER_BIT); - - glColor3f(1.0, 0.0, 0.0); - /* 2 lines clipped along xmin */ - line(-20, win_height / 2 - 20, - 20, win_height / 2 - 20); - line( 20, win_height / 2 + 20, - -20, win_height / 2 + 20); - - glColor3f(0.0, 1.0, 0.0); - /* 2 lines clipped along ymax */ - line(win_width / 2 - 20, win_height + 20, - win_width / 2 - 20, win_height - 20); - line(win_width / 2 + 20, win_height - 20, - win_width / 2 + 20, win_height + 20); - - glColor3f(0.0, 0.0, 1.0); - /* 2 lines clipped along xmax */ - line(win_width - 20, win_height / 2 - 20, - win_width + 20, win_height / 2 - 20); - line(win_width + 20, win_height / 2 + 20, - win_width - 20, win_height / 2 + 20); - - glColor3f(1.0, 1.0, 1.0); - /* 2 lines clipped along ymin */ - line(win_width / 2 - 20, 20, - win_width / 2 - 20, -20); - line(win_width / 2 + 20, -20, - win_width / 2 + 20, 20); - - /* 2 lines clipped along near */ - glColor3f(1.0, 0.0, 1.0); - line3(win_width / 2 - 20 - 20, win_height / 2, 0.5, - win_width / 2 - 20 + 20, win_height / 2, -0.5); - line3(win_width / 2 - 20, win_height / 2 - 20, -0.5, - win_width / 2 - 20, win_height / 2 + 20, 0.5); - - /* 2 lines clipped along far */ - glColor3f(0.0, 1.0, 1.0); - line3(win_width / 2 + 20 - 20, win_height / 2, 1.5, - win_width / 2 + 20 + 20, win_height / 2, 0.5); - line3(win_width / 2 + 20, win_height / 2 - 20, 0.5, - win_width / 2 + 20, win_height / 2 + 20, 1.5); - - /* entirely clipped along near/far */ - glColor3f(.5, .5, .5); - line3(win_width / 2, win_height / 2 - 20, -0.5, - win_width / 2, win_height / 2 + 20, -0.5); - glColor3f(.5, .5, .5); - line3(win_width / 2, win_height / 2 - 20, 1.5, - win_width / 2, win_height / 2 + 20, 1.5); - - glColor3f(1.0, 1.0, 0.0); - /* lines clipped along both x and y limits */ - line(-5, 20, - 20, -5); /* xmin, ymin */ - line(-5, win_height - 20, - 20, win_height + 5); /* xmin, ymax */ - line(win_width - 20, -5, - win_width + 5, 20); /* xmax, ymin */ - line(win_width - 20, win_height + 5, - win_width + 5, win_height - 20); /* xmax, ymax */ - - glutSwapBuffers(); -} - -static void -reshape(int width, int height) -{ - win_width = width; - win_height = height; - glViewport(0, 0, width, height); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(0, win_width, 0, win_height, 0.0, -1.0); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glTranslatef(.25, .25, 0); -} - -static void key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - - switch (key) { - case 27: /* esc */ - exit(0); - break; - } - - glutPostRedisplay(); -} - -static void -init(void) -{ -} - -int -main(int argc, char *argv[]) -{ - win_width = 200; - win_height = 200; - - glutInit(&argc, argv); - glutInitWindowPosition(0, 0); - glutInitWindowSize(win_width, win_height); - glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); - glutCreateWindow(argv[0]); - glewInit(); - glutReshapeFunc(reshape); - glutKeyboardFunc(key); - glutDisplayFunc(display); - - init(); - - glutMainLoop(); - return 0; -} |