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/* |
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* Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. |
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* |
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* Permission to use, copy, modify, distribute, and sell this software and |
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* its documentation for any purpose is hereby granted without fee, provided |
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* that (i) the above copyright notices and this permission notice appear in |
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* all copies of the software and related documentation, and (ii) the name of |
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* Silicon Graphics may not be used in any advertising or |
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* publicity relating to the software without the specific, prior written |
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* permission of Silicon Graphics. |
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* |
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF |
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* ANY KIND, |
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
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* |
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* IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR |
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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* OF THIS SOFTWARE. |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <GL/glut.h> |
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#define CI_OFFSET_1 16 |
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#define CI_OFFSET_2 32 |
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static GLubyte fly[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x03, 0x80, 0x01, 0xC0, 0x06, 0xC0, 0x03, 0x60, 0x04, 0x60, 0x06, 0x20, |
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0x04, 0x30, 0x0C, 0x20, 0x04, 0x18, 0x18, 0x20, 0x04, 0x0C, 0x30, 0x20, |
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0x04, 0x06, 0x60, 0x20, 0x44, 0x03, 0xC0, 0x22, 0x44, 0x01, 0x80, 0x22, |
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0x44, 0x01, 0x80, 0x22, 0x44, 0x01, 0x80, 0x22, 0x44, 0x01, 0x80, 0x22, |
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0x44, 0x01, 0x80, 0x22, 0x44, 0x01, 0x80, 0x22, 0x66, 0x01, 0x80, 0x66, |
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0x33, 0x01, 0x80, 0xCC, 0x19, 0x81, 0x81, 0x98, 0x0C, 0xC1, 0x83, 0x30, |
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0x07, 0xe1, 0x87, 0xe0, 0x03, 0x3f, 0xfc, 0xc0, 0x03, 0x31, 0x8c, 0xc0, |
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0x03, 0x33, 0xcc, 0xc0, 0x06, 0x64, 0x26, 0x60, 0x0c, 0xcc, 0x33, 0x30, |
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0x18, 0xcc, 0x33, 0x18, 0x10, 0xc4, 0x23, 0x08, 0x10, 0x63, 0xC6, 0x08, |
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0x10, 0x30, 0x0c, 0x08, 0x10, 0x18, 0x18, 0x08, 0x10, 0x00, 0x00, 0x08}; |
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GLenum doubleBuffer; |
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static void Init(void) |
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{ |
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fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); |
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fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); |
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fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); |
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glEnable (GL_POLYGON_STIPPLE); |
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glPolygonStipple (fly); |
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glClearColor(0.0, 0.0, 1.0, 0.0); |
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} |
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static void Reshape(int width, int height) |
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{ |
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glViewport(0, 0, (GLint)width, (GLint)height); |
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glMatrixMode(GL_PROJECTION); |
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glLoadIdentity(); |
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/* glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */ |
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glMatrixMode(GL_MODELVIEW); |
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} |
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static void Key(unsigned char key, int x, int y) |
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{ |
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switch (key) { |
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case 27: |
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exit(1); |
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default: |
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return; |
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} |
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glutPostRedisplay(); |
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} |
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static void Draw(void) |
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{ |
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glClear(GL_COLOR_BUFFER_BIT); |
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glBegin(GL_TRIANGLES); |
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glColor3f(0,0,.7); |
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glVertex3f( 0.9, -0.9, -0.0); |
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glColor3f(.8,0,0); |
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glVertex3f( 0.9, 0.9, -0.0); |
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glColor3f(0,.9,0); |
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glVertex3f(-0.9, 0.0, -0.0); |
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glEnd(); |
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glFlush(); |
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if (doubleBuffer) { |
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glutSwapBuffers(); |
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} |
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} |
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static GLenum Args(int argc, char **argv) |
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{ |
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GLint i; |
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doubleBuffer = GL_FALSE; |
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for (i = 1; i < argc; i++) { |
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if (strcmp(argv[i], "-sb") == 0) { |
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doubleBuffer = GL_FALSE; |
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} else if (strcmp(argv[i], "-db") == 0) { |
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doubleBuffer = GL_TRUE; |
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} else { |
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fprintf(stderr, "%s (Bad option).\n", argv[i]); |
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return GL_FALSE; |
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} |
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} |
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return GL_TRUE; |
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} |
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int main(int argc, char **argv) |
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{ |
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GLenum type; |
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glutInit(&argc, argv); |
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if (Args(argc, argv) == GL_FALSE) { |
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exit(1); |
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} |
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glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); |
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type = GLUT_RGB | GLUT_ALPHA; |
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type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; |
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glutInitDisplayMode(type); |
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if (glutCreateWindow("First Tri") == GL_FALSE) { |
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exit(1); |
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} |
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Init(); |
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glutReshapeFunc(Reshape); |
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glutKeyboardFunc(Key); |
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glutDisplayFunc(Draw); |
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glutMainLoop(); |
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return 0; |
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} |