trivial: Add tri-viewport
This commit is contained in:
parent
b3bd315e57
commit
bd2f921d78
|
@ -110,6 +110,7 @@ tri-unfilled-tri-lit
|
||||||
tri-unfilled-userclip
|
tri-unfilled-userclip
|
||||||
tri-unfilled-userclip-stip
|
tri-unfilled-userclip-stip
|
||||||
tri-userclip
|
tri-userclip
|
||||||
|
tri-viewport
|
||||||
tri-z
|
tri-z
|
||||||
tri-z-eq
|
tri-z-eq
|
||||||
trifan
|
trifan
|
||||||
|
|
|
@ -119,6 +119,7 @@ SOURCES = \
|
||||||
tri-unfilled-userclip.c \
|
tri-unfilled-userclip.c \
|
||||||
tri-unfilled.c \
|
tri-unfilled.c \
|
||||||
tri-userclip.c \
|
tri-userclip.c \
|
||||||
|
tri-viewport.c \
|
||||||
tri-z-eq.c \
|
tri-z-eq.c \
|
||||||
tri-z.c \
|
tri-z.c \
|
||||||
tri.c \
|
tri.c \
|
||||||
|
|
|
@ -114,6 +114,7 @@ progs = [
|
||||||
'tri-unfilled-userclip',
|
'tri-unfilled-userclip',
|
||||||
'tri-unfilled',
|
'tri-unfilled',
|
||||||
'tri-userclip',
|
'tri-userclip',
|
||||||
|
'tri-viewport',
|
||||||
'tri-z-eq',
|
'tri-z-eq',
|
||||||
'tri-z',
|
'tri-z',
|
||||||
'tri',
|
'tri',
|
||||||
|
|
|
@ -0,0 +1,129 @@
|
||||||
|
/*
|
||||||
|
* 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>
|
||||||
|
|
||||||
|
GLenum doubleBuffer = 1;
|
||||||
|
int win;
|
||||||
|
|
||||||
|
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));
|
||||||
|
|
||||||
|
glClearColor(0.3, 0.1, 0.3, 0.0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void Reshape(int width, int height)
|
||||||
|
{
|
||||||
|
glViewport(width / -2.0, height / -2.0, width, height);
|
||||||
|
|
||||||
|
glMatrixMode(GL_PROJECTION);
|
||||||
|
glLoadIdentity();
|
||||||
|
glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
|
||||||
|
glMatrixMode(GL_MODELVIEW);
|
||||||
|
glLoadIdentity();
|
||||||
|
}
|
||||||
|
|
||||||
|
static void Key(unsigned char key, int x, int y)
|
||||||
|
{
|
||||||
|
switch (key) {
|
||||||
|
case 27:
|
||||||
|
exit(0);
|
||||||
|
default:
|
||||||
|
glutPostRedisplay();
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void Draw(void)
|
||||||
|
{
|
||||||
|
glClear(GL_COLOR_BUFFER_BIT);
|
||||||
|
|
||||||
|
glBegin(GL_TRIANGLES);
|
||||||
|
glColor3f(.8,0,0);
|
||||||
|
glVertex3f(-0.9, 0.9, -30.0);
|
||||||
|
glColor3f(0,.9,0);
|
||||||
|
glVertex3f( 0.9, 0.9, -30.0);
|
||||||
|
glColor3f(0,0,.7);
|
||||||
|
glVertex3f( 0.0, -0.9, -30.0);
|
||||||
|
glEnd();
|
||||||
|
|
||||||
|
glFlush();
|
||||||
|
|
||||||
|
if (doubleBuffer) {
|
||||||
|
glutSwapBuffers();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static GLenum Args(int argc, char **argv)
|
||||||
|
{
|
||||||
|
GLint i;
|
||||||
|
|
||||||
|
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);
|
||||||
|
|
||||||
|
win = glutCreateWindow(*argv);
|
||||||
|
if (!win) {
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
Init();
|
||||||
|
|
||||||
|
glutReshapeFunc(Reshape);
|
||||||
|
glutKeyboardFunc(Key);
|
||||||
|
glutDisplayFunc(Draw);
|
||||||
|
glutMainLoop();
|
||||||
|
return 0;
|
||||||
|
}
|
Loading…
Reference in New Issue