diff options
Diffstat (limited to 'progs/trivial/tri-mask-tri.c')
-rw-r--r-- | progs/trivial/tri-mask-tri.c | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/progs/trivial/tri-mask-tri.c b/progs/trivial/tri-mask-tri.c deleted file mode 100644 index d62620905d..0000000000 --- a/progs/trivial/tri-mask-tri.c +++ /dev/null @@ -1,154 +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 <GL/glut.h> - - -GLint Width = 250, Height = 250; -GLenum doubleBuffer; -GLint Win; -GLboolean Rmask = GL_TRUE, Gmask = GL_FALSE, Bmask = GL_TRUE; - - -static void Init(void) -{ - fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); - fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - fflush(stderr); - glClearColor(0.0, 0.0, 1.0, 0.0); -} - -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, 1000.0); - glMatrixMode(GL_MODELVIEW); -} - -static void Key(unsigned char key, int x, int y) -{ - switch (key) { - case 'r': - Rmask = !Rmask; - break; - case 'g': - Gmask = !Gmask; - break; - case 'b': - Bmask = !Bmask; - break; - case 27: - glutDestroyWindow(Win); - exit(1); - default: - return; - } - glutPostRedisplay(); -} - -static void Draw(void) -{ - printf("ColorMask = %d, %d, %d\n", Rmask, Gmask, Bmask); - glColorMask(1,1,1,1); - - glClear(GL_COLOR_BUFFER_BIT); - - /* right triangle: green */ - glBegin(GL_TRIANGLES); - glColor3f(0,1,0); - glVertex3f( 0.9, -0.9, -30.0); - glVertex3f( 0.9, 0.9, -30.0); - glVertex3f(-0.9, 0.0, -30.0); - glEnd(); - - glColorMask(Rmask, Gmask, Bmask, 0); - - /* left triangle: white&mask: purple middle region: white */ - glBegin(GL_TRIANGLES); - glColor3f(1,1,1); - glVertex3f(-0.9, -0.9, -30.0); - glVertex3f(-0.9, 0.9, -30.0); - glVertex3f( 0.9, 0.0, -30.0); - glEnd(); - - glDisable(GL_SCISSOR_TEST); - - 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 { - fprintf(stderr, "%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); - } - - type = GLUT_RGB; - type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; - - glutInitWindowPosition(100, 0); glutInitWindowSize(Width, Height); - glutInitDisplayMode(type); - Win = glutCreateWindow(*argv); - Init(); - glutReshapeFunc(Reshape); - glutKeyboardFunc(Key); - glutDisplayFunc(Draw); - glutMainLoop(); - return 0; -} |