progs/trivial: add dlist-mat-tri.c
This commit is contained in:
parent
1ca836f0de
commit
c48c01c9e7
|
@ -20,6 +20,7 @@ SOURCES = \
|
|||
clear.c \
|
||||
dlist-dangling.c \
|
||||
dlist-flat-tri.c \
|
||||
dlist-mat-tri.c \
|
||||
dlist-tri-flat-tri.c \
|
||||
dlist-tri-mat-tri.c \
|
||||
dlist-recursive-call.c \
|
||||
|
|
|
@ -0,0 +1,182 @@
|
|||
/*
|
||||
* 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 doubleBuffer;
|
||||
GLint list;
|
||||
|
||||
static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0};
|
||||
static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0};
|
||||
/*static GLfloat blue[4] = {0.2, 0.2, .7, 1.0};*/
|
||||
|
||||
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);
|
||||
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
|
||||
glEnable(GL_LIGHTING);
|
||||
glEnable(GL_LIGHT0);
|
||||
|
||||
glClearColor(0.0, 0.0, 1.0, 0.0);
|
||||
|
||||
list = glGenLists(1);
|
||||
glNewList(list, GL_COMPILE);
|
||||
|
||||
/* XXX: this state-change will be executed regardless of whether
|
||||
* the list is called from outside a begin/end pair:
|
||||
*/
|
||||
glMaterialfv(GL_FRONT, GL_AMBIENT, red);
|
||||
glBegin(GL_TRIANGLES);
|
||||
glVertex3f( -0.9, 0.9, -30.0);
|
||||
glVertex3f( -0.9, -0.9, -30.0);
|
||||
glVertex3f( 0.9, 0.0, -30.0);
|
||||
glEnd();
|
||||
|
||||
glMaterialfv(GL_FRONT, GL_DIFFUSE, red);
|
||||
glBegin(GL_TRIANGLES);
|
||||
glVertex3f( -0.7, 0.7, -30.0);
|
||||
glVertex3f( -0.7, -0.7, -30.0);
|
||||
glVertex3f( 0.7, 0.0, -30.0);
|
||||
glEnd();
|
||||
|
||||
/* This statechange is redundant:
|
||||
*/
|
||||
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
|
||||
glBegin(GL_TRIANGLES);
|
||||
glVertex3f( -0.5, 0.5, -30.0);
|
||||
glVertex3f( -0.5, -0.5, -30.0);
|
||||
glVertex3f( 0.5, 0.0, -30.0);
|
||||
glEnd();
|
||||
|
||||
glEndList();
|
||||
}
|
||||
|
||||
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);
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
glutPostRedisplay();
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
static void Draw(void)
|
||||
{
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
|
||||
glShadeModel( GL_SMOOTH );
|
||||
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
|
||||
|
||||
glBegin(GL_TRIANGLES);
|
||||
|
||||
/* Note: call the list from inside a begin/end pair. The end is
|
||||
* provided by the display list...
|
||||
*/
|
||||
glCallList(list);
|
||||
|
||||
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);
|
||||
}
|
||||
|
||||
glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
|
||||
|
||||
type = GLUT_RGB | GLUT_ALPHA;
|
||||
type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
|
||||
glutInitDisplayMode(type);
|
||||
|
||||
if (glutCreateWindow(*argv) == GL_FALSE) {
|
||||
exit(1);
|
||||
}
|
||||
|
||||
Init();
|
||||
|
||||
glutReshapeFunc(Reshape);
|
||||
glutKeyboardFunc(Key);
|
||||
glutDisplayFunc(Draw);
|
||||
glutMainLoop();
|
||||
return 0;
|
||||
}
|
Loading…
Reference in New Issue