Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.

[mesa.git] / progs / trivial / tri-blend-sub.c

diff --git a/progs/trivial/tri-blend-sub.c b/progs/trivial/tri-blend-sub.c
deleted file mode 100644 (file)
index 3c560ae..0000000
--- a/progs/trivial/tri-blend-sub.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (c) 1993-1997, Silicon Graphics, Inc.
- * 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 
- * the name of Silicon Graphics, Inc. not be used in advertising
- * or publicity pertaining to distribution of the software without specific,
- * 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,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
- * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
- * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
- * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
- * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
- * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
- * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
- * 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 
- * 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
- * clause at DFARS 252.227-7013 and/or in similar or successor
- * clauses in the FAR or the DOD or NASA FAR Supplement.
- * Unpublished-- rights reserved under the copyright laws of the
- * United States.  Contractor/manufacturer is Silicon Graphics,
- * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
- *
- * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
- */
-
-/*
- *  alpha.c
- *  This program draws several overlapping filled polygons
- *  to demonstrate the effect order has on alpha blending results.
- *  Use the 't' key to toggle the order of drawing polygons.
- */
-#include <stdlib.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-
-static int leftFirst = GL_TRUE;
-
-/*  Initialize alpha blending function.
- */
-static void init(void)
-{
-   glBlendEquation (GL_FUNC_SUBTRACT);
-   glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-   glShadeModel (GL_FLAT);
-   glClearColor (1.0, 0.0, 0.0, 0.0);
-}
-
-static void drawLeftTriangle(void)
-{
-   /* draw yellow triangle on LHS of screen */
-
-   glBegin (GL_TRIANGLES);
-      glColor4f(1.0, 1.0, 0.0, 0.75);
-      glVertex3f(0.1, 0.9, 0.0); 
-      glVertex3f(0.1, 0.1, 0.0); 
-      glVertex3f(0.7, 0.5, 0.0); 
-   glEnd();
-}
-
-static void drawRightTriangle(void)
-{
-   /* draw cyan triangle on RHS of screen */
-
-   glEnable (GL_BLEND);
-   glBegin (GL_TRIANGLES);
-      glColor4f(0.0, 1.0, 1.0, 0.75);
-      glVertex3f(0.9, 0.9, 0.0); 
-      glVertex3f(0.3, 0.5, 0.0); 
-      glVertex3f(0.9, 0.1, 0.0); 
-   glEnd();
-   glDisable (GL_BLEND);
-}
-
-static void display(void)
-{
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   if (leftFirst) {
-      drawLeftTriangle();
-      drawRightTriangle();
-   }
-   else {
-      drawRightTriangle();
-      drawLeftTriangle();
-   }
-
-   glFlush();
-}
-
-static void reshape(int w, int h)
-{
-   glViewport(0, 0, (GLsizei) w, (GLsizei) h);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   if (w <= h) 
-      gluOrtho2D (0.0, 1.0, 0.0, 1.0*(GLfloat)h/(GLfloat)w);
-   else 
-      gluOrtho2D (0.0, 1.0*(GLfloat)w/(GLfloat)h, 0.0, 1.0);
-}
-
-/* ARGSUSED1 */
-static void keyboard(unsigned char key, int x, int y)
-{
-   switch (key) {
-      case 't':
-      case 'T':
-         leftFirst = !leftFirst;
-         glutPostRedisplay();  
-         break;
-      case 27:  /*  Escape key  */
-         exit(0);
-         break;
-      default:
-         break;
-   }
-}
-
-/*  Main Loop
- *  Open window with initial window size, title bar, 
- *  RGBA display mode, and handle input events.
- */
-int main(int argc, char** argv)
-{
-   glutInit(&argc, argv);
-   glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
-   glutInitWindowSize (200, 200);
-   glutCreateWindow (argv[0]);
-   glewInit();
-   init();
-   glutReshapeFunc (reshape);
-   glutKeyboardFunc (keyboard);
-   glutDisplayFunc (display);
-   glutMainLoop();
-   return 0;
-}