diff options
Diffstat (limited to 'progs/samples/depth.c')
| -rw-r--r-- | progs/samples/depth.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/progs/samples/depth.c b/progs/samples/depth.c deleted file mode 100644 index afe2ec17a3..0000000000 --- a/progs/samples/depth.c +++ /dev/null @@ -1,209 +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> - - -#define CI_OFFSET_1 16 -#define CI_OFFSET_2 32 - - -GLenum rgb, doubleBuffer; - -GLenum antiAlias, stipple; -GLubyte stippleBits[32*4] = { - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, - 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, -}; - - -#include "tkmap.c" - -static void Init(void) -{ - GLint i; - - glClearColor(0.0, 0.0, 0.0, 0.0); - glClearIndex(0.0); - - if (!rgb) { - for (i = 0; i < 16; i++) { - glutSetColor(i+CI_OFFSET_1, 0.0, 0.0, i/15.0); - glutSetColor(i+CI_OFFSET_2, 0.0, i/15.0, 0.0); - } - } - - glPolygonStipple(stippleBits); - - antiAlias = GL_FALSE; - stipple = GL_FALSE; -} - -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 27: - exit(1); - case '1': - antiAlias = !antiAlias; - break; - case '2': - stipple = !stipple; - break; - default: - return; - } - - glutPostRedisplay(); -} - -static void Draw(void) -{ - GLint ci1, ci2; - - glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); - - if (antiAlias) { - ci1 = CI_OFFSET_1; - ci2 = CI_OFFSET_2; - glBlendFunc(GL_SRC_ALPHA, GL_ONE); - glEnable(GL_BLEND); - glEnable(GL_POLYGON_SMOOTH); - glDisable(GL_DEPTH_TEST); - } else { - ci1 = COLOR_BLUE; - ci2 = COLOR_GREEN; - glDisable(GL_BLEND); - glDisable(GL_POLYGON_SMOOTH); - glEnable(GL_DEPTH_TEST); - } - - if (stipple) { - glEnable(GL_POLYGON_STIPPLE); - } else { - glDisable(GL_POLYGON_STIPPLE); - } - - glBegin(GL_TRIANGLES); - (rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexi(ci1); - glVertex3f( 0.9, -0.9, -30.0); - glVertex3f( 0.9, 0.9, -30.0); - glVertex3f(-0.9, 0.0, -30.0); - (rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexi(ci2); - glVertex3f(-0.9, -0.9, -40.0); - glVertex3f(-0.9, 0.9, -40.0); - glVertex3f( 0.9, 0.0, -25.0); - glEnd(); - - glFlush(); - - if (doubleBuffer) { - glutSwapBuffers(); - } -} - -static GLenum Args(int argc, char **argv) -{ - GLint i; - - rgb = GL_TRUE; - doubleBuffer = GL_FALSE; - - for (i = 1; i < argc; i++) { - if (strcmp(argv[i], "-ci") == 0) { - rgb = GL_FALSE; - } else if (strcmp(argv[i], "-rgb") == 0) { - rgb = GL_TRUE; - } else if (strcmp(argv[i], "-sb") == 0) { - doubleBuffer = GL_FALSE; - } else if (strcmp(argv[i], "-db") == 0) { - doubleBuffer = GL_TRUE; - } 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_DEPTH; - type |= (rgb) ? GLUT_RGB : GLUT_INDEX; - type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; - glutInitDisplayMode(type); - - if (glutCreateWindow("Depth Test") == GL_FALSE) { - exit(1); - } - - InitMap(); - - Init(); - - glutReshapeFunc(Reshape); - glutKeyboardFunc(Key); - glutDisplayFunc(Draw); - glutMainLoop(); - return 0; -} |