diff options
| -rw-r--r-- | progs/trivial/Makefile | 1 | ||||
| -rw-r--r-- | progs/trivial/dlist-mat-tri.c | 182 |
2 files changed, 183 insertions, 0 deletions
diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile index a120270a9af..bef1a57cd29 100644 --- a/progs/trivial/Makefile +++ b/progs/trivial/Makefile @@ -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 \ diff --git a/progs/trivial/dlist-mat-tri.c b/progs/trivial/dlist-mat-tri.c new file mode 100644 index 00000000000..ed3a4c5981a --- /dev/null +++ b/progs/trivial/dlist-mat-tri.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; +} |