+++ /dev/null
-/*
- * 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 SOLID 1
-#define LINE 2
-#define POINT 3
-
-
-GLenum rgb, doubleBuffer, windType;
-GLint windW, windH;
-
-GLenum dithering = GL_TRUE;
-GLenum showVerticies = GL_TRUE;
-GLenum hideBottomTriangle = GL_FALSE;
-GLenum outline = GL_TRUE;
-GLenum culling = GL_FALSE;
-GLenum winding = GL_FALSE;
-GLenum face = GL_FALSE;
-GLenum state = SOLID;
-GLenum aaMode = GL_FALSE;
-GLenum shade = GL_TRUE;
-
-GLint color1, color2, color3;
-
-float zRotation = 90.0;
-float zoom = 1.0;
-
-float boxA[3] = {-100, -100, 0};
-float boxB[3] = { 100, -100, 0};
-float boxC[3] = { 100, 100, 0};
-float boxD[3] = {-100, 100, 0};
-
-float p0[3] = {-125,-80, 0};
-float p1[3] = {-125, 80, 0};
-float p2[3] = { 172, 0, 0};
-
-
-#include "tkmap.c"
-
-static void Init(void)
-{
- float r, g, b;
- float percent1, percent2;
- GLint i, j;
-
- glClearColor(0.0, 0.0, 0.0, 0.0);
-
- glLineStipple(1, 0xF0F0);
-
- glEnable(GL_SCISSOR_TEST);
-
- if (!rgb) {
- for (j = 0; j <= 12; j++) {
- if (j <= 6) {
- percent1 = j / 6.0;
- r = 1.0 - 0.8 * percent1;
- g = 0.2 + 0.8 * percent1;
- b = 0.2;
- } else {
- percent1 = (j - 6) / 6.0;
- r = 0.2;
- g = 1.0 - 0.8 * percent1;
- b = 0.2 + 0.8 * percent1;
- }
- glutSetColor(j+18, r, g, b);
- for (i = 0; i < 16; i++) {
- percent2 = i / 15.0;
- glutSetColor(j*16+1+32, r*percent2, g*percent2, b*percent2);
- }
- }
- color1 = 18;
- color2 = 24;
- color3 = 30;
- }
-}
-
-static void Reshape(int width, int height)
-{
-
- windW = (GLint)width;
- windH = (GLint)height;
-}
-
-static void Key2(int key, int x, int y)
-{
-
- switch (key) {
- case GLUT_KEY_LEFT:
- zRotation += 0.5;
- break;
- case GLUT_KEY_RIGHT:
- zRotation -= 0.5;
- break;
- default:
- return;
- }
-
- glutPostRedisplay();
-}
-
-static void Key(unsigned char key, int x, int y)
-{
-
- switch (key) {
- case 27:
- exit(1);
- case 'Z':
- zoom *= 0.75;
- break;
- case 'z':
- zoom /= 0.75;
- if (zoom > 10) {
- zoom = 10;
- }
- break;
- case '1':
- glPolygonMode(GL_FRONT_AND_BACK, GL_POINT);
- break;
- case '2':
- glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
- break;
- case '3':
- glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
- break;
- case '4':
- state = POINT;
- break;
- case '5':
- state = LINE;
- break;
- case '6':
- state = SOLID;
- break;
- case '7':
- culling = !culling;
- break;
- case '8':
- winding = !winding;
- break;
- case '9':
- face = !face;
- break;
- case 'v':
- showVerticies = !showVerticies;
- break;
- case 's':
- shade = !shade;
- (shade) ? glShadeModel(GL_SMOOTH) : glShadeModel(GL_FLAT);
- break;
- case 'h':
- hideBottomTriangle = !hideBottomTriangle;
- break;
- case 'o':
- outline = !outline;
- break;
- case 'm':
- dithering = !dithering;
- break;
- case '0':
- aaMode = !aaMode;
- if (aaMode) {
- glEnable(GL_POLYGON_SMOOTH);
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE);
- if (!rgb) {
- color1 = 32;
- color2 = 128;
- color3 = 224;
- }
- } else {
- glDisable(GL_POLYGON_SMOOTH);
- glDisable(GL_BLEND);
- if (!rgb) {
- color1 = 18;
- color2 = 24;
- color3 = 30;
- }
- }
- break;
- default:
- return;
- }
-
- glutPostRedisplay();
-}
-
-static void BeginPrim(void)
-{
-
- switch (state) {
- case SOLID:
- glBegin(GL_POLYGON);
- break;
- case LINE:
- glBegin(GL_LINE_LOOP);
- break;
- case POINT:
- glBegin(GL_POINTS);
- break;
- default:
- break;
- }
-}
-
-static void EndPrim(void)
-{
-
- glEnd();
-}
-
-static void Draw(void)
-{
- float scaleX, scaleY;
-
- glViewport(0, 0, windW, windH);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluOrtho2D(-175, 175, -175, 175);
- glMatrixMode(GL_MODELVIEW);
-
- glScissor(0, 0, windW, windH);
-
- (culling) ? glEnable(GL_CULL_FACE) : glDisable(GL_CULL_FACE);
- (winding) ? glFrontFace(GL_CCW) : glFrontFace(GL_CW);
- (face) ? glCullFace(GL_FRONT) : glCullFace(GL_BACK);
-
- (dithering) ? glEnable(GL_DITHER) : glDisable(GL_DITHER);
-
- glClear(GL_COLOR_BUFFER_BIT);
-
- SetColor(COLOR_GREEN);
- glBegin(GL_LINE_LOOP);
- glVertex3fv(boxA);
- glVertex3fv(boxB);
- glVertex3fv(boxC);
- glVertex3fv(boxD);
- glEnd();
-
- if (!hideBottomTriangle) {
- glPushMatrix();
-
- glScalef(zoom, zoom, zoom);
- glRotatef(zRotation, 0, 0, 1);
-
- SetColor(COLOR_BLUE);
- BeginPrim();
- glVertex3fv(p0);
- glVertex3fv(p1);
- glVertex3fv(p2);
- EndPrim();
-
- if (showVerticies) {
- (rgb) ? glColor3fv(RGBMap[COLOR_RED]) : glIndexf(color1);
- glRectf(p0[0]-2, p0[1]-2, p0[0]+2, p0[1]+2);
- (rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexf(color2);
- glRectf(p1[0]-2, p1[1]-2, p1[0]+2, p1[1]+2);
- (rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexf(color3);
- glRectf(p2[0]-2, p2[1]-2, p2[0]+2, p2[1]+2);
- }
-
- glPopMatrix();
- }
-
- scaleX = (float)(windW - 20) / 2 / 175 * (175 - 100) + 10;
- scaleY = (float)(windH - 20) / 2 / 175 * (175 - 100) + 10;
-
- glViewport(scaleX, scaleY, windW-2*scaleX, windH-2*scaleY);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluOrtho2D(-100, 100, -100, 100);
- glMatrixMode(GL_MODELVIEW);
-
- glScissor(scaleX, scaleY, windW-2*scaleX, windH-2*scaleY);
-
- glPushMatrix();
-
- glScalef(zoom, zoom, zoom);
- glRotatef(zRotation, 0,0,1);
-
- glPointSize(10);
- glLineWidth(5);
- glEnable(GL_POINT_SMOOTH);
- glEnable(GL_LINE_STIPPLE);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- SetColor(COLOR_RED);
- BeginPrim();
- (rgb) ? glColor3fv(RGBMap[COLOR_RED]) : glIndexf(color1);
- glVertex3fv(p0);
- (rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexf(color2);
- glVertex3fv(p1);
- (rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexf(color3);
- glVertex3fv(p2);
- EndPrim();
-
- glPointSize(1);
- glLineWidth(1);
- glDisable(GL_POINT_SMOOTH);
- glDisable(GL_LINE_STIPPLE);
- glBlendFunc(GL_ONE, GL_ZERO);
-
- if (outline) {
- SetColor(COLOR_WHITE);
- glBegin(GL_LINE_LOOP);
- glVertex3fv(p0);
- glVertex3fv(p1);
- glVertex3fv(p2);
- glEnd();
- }
-
- glPopMatrix();
-
- 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)
-{
- glutInit(&argc, argv);
-
- if (Args(argc, argv) == GL_FALSE) {
- exit(1);
- }
-
- windW = 600;
- windH = 300;
- glutInitWindowPosition(0, 0); glutInitWindowSize( windW, windH);
-
- windType = (rgb) ? GLUT_RGB : GLUT_INDEX;
- windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
- glutInitDisplayMode(windType);
-
- if (glutCreateWindow("Triangle Test") == GL_FALSE) {
- exit(1);
- }
-
- InitMap();
-
- Init();
-
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutSpecialFunc(Key2);
- glutDisplayFunc(Draw);
- glutMainLoop();
- return 0;
-}
projects / mesa.git / blobdiff