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-rw-r--r--progs/trivial/tri-stencil.c161
1 files changed, 0 insertions, 161 deletions
diff --git a/progs/trivial/tri-stencil.c b/progs/trivial/tri-stencil.c
deleted file mode 100644
index d66b68c415..0000000000
--- a/progs/trivial/tri-stencil.c
+++ /dev/null
@@ -1,161 +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 <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <GL/glut.h>
-
-
-static void Init(void)
-{
-}
-
-static void Reshape(int width, int height)
-{
-
- glViewport(0, 0, (GLint)width, (GLint)height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(-5.0, 5.0, -5.0, 5.0, -5.0, 5.0);
- glMatrixMode(GL_MODELVIEW);
-}
-
-static void Key(unsigned char key, int x, int y)
-{
-
- switch (key) {
- case 27:
- printf("Exiting...\n");
- exit(1);
- case 'r':
- printf("Redisplaying...\n");
- glutPostRedisplay();
- break;
- default:
- printf("No such key '%c'...\n", key);
- break;
- }
-}
-
-static void Draw(void)
-{
- glShadeModel(GL_FLAT);
-
- {
- glClearColor(0.0, 0.0, 0.0, 0.0);
- glClearStencil(0);
- glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
- }
-
-
- glStencilMask(1);
- glEnable(GL_STENCIL_TEST);
- glStencilFunc(GL_ALWAYS, 1, 1);
- glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
-
- /* red triangle (setting stencil to 1) */
- glColor3ub(200, 0, 0);
- glBegin(GL_POLYGON);
- glVertex3i(-4, -4, 0);
- glVertex3i( 4, -4, 0);
- glVertex3i( 0, 4, 0);
- glEnd();
-
-#if 1
- glStencilFunc(GL_EQUAL, 1, 1);
- glStencilOp(GL_INCR, GL_KEEP, GL_DECR);
-
- /* green quad (if over red, decr stencil to 0, else incr to 1) */
- glColor3ub(0, 200, 0);
- glBegin(GL_POLYGON);
- glVertex3i(3, 3, 0);
- glVertex3i(-3, 3, 0);
- glVertex3i(-3, -3, 0);
- glVertex3i(3, -3, 0);
- glEnd();
-#endif
-
-#if 1
- glStencilFunc(GL_EQUAL, 1, 1);
- glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
-
- /* blue quad (where stencil == 1) */
- glColor3ub(0, 0, 200);
- glBegin(GL_POLYGON);
- glVertex3f(2.5, 2.5, 0);
- glVertex3f(-2.5, 2.5, 0);
- glVertex3f(-2.5, -2.5, 0);
- glVertex3f(2.5, -2.5, 0);
- glEnd();
-#endif
-
- glFlush();
-}
-
-static GLenum Args(int argc, char **argv)
-{
- GLint i;
-
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-dr") == 0) {
- } 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_SINGLE | GLUT_DEPTH | GLUT_STENCIL;
- glutInitDisplayMode(type);
-
- if (glutCreateWindow(*argv) == GL_FALSE) {
- exit(1);
- }
-
- Init();
-
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutDisplayFunc(Draw);
- glutMainLoop();
- return 0;
-}