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-rw-r--r--nx-X11/extras/Mesa_6.4.1/progs/demos/reflect.c404
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diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/reflect.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/reflect.c
deleted file mode 100644
index bf6d91aaa..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/reflect.c
+++ /dev/null
@@ -1,404 +0,0 @@
-
-/*
- * Demo of a reflective, texture-mapped surface with OpenGL.
- * Brian Paul August 14, 1995 This file is in the public domain.
- *
- * Hardware texture mapping is highly recommended!
- *
- * The basic steps are:
- * 1. Render the reflective object (a polygon) from the normal viewpoint,
- * setting the stencil planes = 1.
- * 2. Render the scene from a special viewpoint: the viewpoint which
- * is on the opposite side of the reflective plane. Only draw where
- * stencil = 1. This draws the objects in the reflective surface.
- * 3. Render the scene from the original viewpoint. This draws the
- * objects in the normal fashion. Use blending when drawing
- * the reflective, textured surface.
- *
- * This is a very crude demo. It could be much better.
- */
-
-/*
- * Authors:
- * Brian Paul
- * Dirk Reiners (reiners@igd.fhg.de) made some modifications to this code.
- * Mark Kilgard (April 1997)
- * Brian Paul (April 2000 - added keyboard d/s options)
- */
-
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "GL/glut.h"
-#include "showbuffer.h"
-#include "readtex.h"
-
-
-#define DEG2RAD (3.14159/180.0)
-
-#define TABLE_TEXTURE "../images/tile.rgb"
-
-static GLint ImgWidth, ImgHeight;
-static GLenum ImgFormat;
-static GLubyte *Image = NULL;
-
-#define MAX_OBJECTS 2
-static GLint table_list;
-static GLint objects_list[MAX_OBJECTS];
-
-static GLfloat xrot, yrot;
-static GLfloat spin;
-
-static GLint Width = 400, Height = 300;
-static GLenum ShowBuffer = GL_NONE;
-static GLboolean Anim = GL_TRUE;
-
-/* performance info */
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-
-static void make_table( void )
-{
- static GLfloat table_mat[] = { 1.0, 1.0, 1.0, 0.6 };
- static GLfloat gray[] = { 0.4, 0.4, 0.4, 1.0 };
-
- table_list = glGenLists(1);
- glNewList( table_list, GL_COMPILE );
-
- /* load table's texture */
- glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, table_mat );
-/* glMaterialfv( GL_FRONT, GL_EMISSION, gray );*/
- glMaterialfv( GL_FRONT, GL_DIFFUSE, table_mat );
- glMaterialfv( GL_FRONT, GL_AMBIENT, gray );
-
- /* draw textured square for the table */
- glPushMatrix();
- glScalef( 4.0, 4.0, 4.0 );
- glBegin( GL_POLYGON );
- glNormal3f( 0.0, 1.0, 0.0 );
- glTexCoord2f( 0.0, 0.0 ); glVertex3f( -1.0, 0.0, 1.0 );
- glTexCoord2f( 1.0, 0.0 ); glVertex3f( 1.0, 0.0, 1.0 );
- glTexCoord2f( 1.0, 1.0 ); glVertex3f( 1.0, 0.0, -1.0 );
- glTexCoord2f( 0.0, 1.0 ); glVertex3f( -1.0, 0.0, -1.0 );
- glEnd();
- glPopMatrix();
-
- glDisable( GL_TEXTURE_2D );
-
- glEndList();
-}
-
-
-static void make_objects( void )
-{
- GLUquadricObj *q;
-
- static GLfloat cyan[] = { 0.0, 1.0, 1.0, 1.0 };
- static GLfloat green[] = { 0.2, 1.0, 0.2, 1.0 };
- static GLfloat black[] = { 0.0, 0.0, 0.0, 0.0 };
-
- q = gluNewQuadric();
- gluQuadricDrawStyle( q, GLU_FILL );
- gluQuadricNormals( q, GLU_SMOOTH );
-
- objects_list[0] = glGenLists(1);
- glNewList( objects_list[0], GL_COMPILE );
- glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, cyan );
- glMaterialfv( GL_FRONT, GL_EMISSION, black );
- gluCylinder( q, 0.5, 0.5, 1.0, 15, 1 );
- glEndList();
-
- objects_list[1] = glGenLists(1);
- glNewList( objects_list[1], GL_COMPILE );
- glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green );
- glMaterialfv( GL_FRONT, GL_EMISSION, black );
- gluCylinder( q, 1.5, 0.0, 2.5, 15, 1 );
- glEndList();
-}
-
-
-static void init( void )
-{
- make_table();
- make_objects();
-
- Image = LoadRGBImage( TABLE_TEXTURE, &ImgWidth, &ImgHeight, &ImgFormat );
- if (!Image) {
- printf("Couldn't read %s\n", TABLE_TEXTURE);
- exit(0);
- }
-
- gluBuild2DMipmaps(GL_TEXTURE_2D, 3, ImgWidth, ImgHeight,
- ImgFormat, GL_UNSIGNED_BYTE, Image);
-
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
-
- xrot = 30.0;
- yrot = 50.0;
- spin = 0.0;
-
- glShadeModel( GL_FLAT );
-
- glEnable( GL_LIGHT0 );
- glEnable( GL_LIGHTING );
-
- glClearColor( 0.5, 0.5, 0.9, 0.0 );
-
- glEnable( GL_NORMALIZE );
-}
-
-
-
-static void reshape(int w, int h)
-{
- GLfloat yAspect = 2.5;
- GLfloat xAspect = yAspect * (float) w / (float) h;
- Width = w;
- Height = h;
- glViewport(0, 0, w, h);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum( -xAspect, xAspect, -yAspect, yAspect, 10.0, 30.0 );
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-}
-
-
-
-static void draw_objects( GLfloat eyex, GLfloat eyey, GLfloat eyez )
-{
- (void) eyex;
- (void) eyey;
- (void) eyez;
-#ifndef USE_ZBUFFER
- if (eyex<0.5) {
-#endif
- glPushMatrix();
- glTranslatef( 1.0, 1.5, 0.0 );
- glRotatef( spin, 1.0, 0.5, 0.0 );
- glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
- glCallList( objects_list[0] );
- glPopMatrix();
-
- glPushMatrix();
- glTranslatef( -1.0, 0.85+3.0*fabs( cos(0.01*spin) ), 0.0 );
- glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
- glRotatef( spin, 1.0, 0.5, 0.0 );
- glScalef( 0.5, 0.5, 0.5 );
- glCallList( objects_list[1] );
- glPopMatrix();
-#ifndef USE_ZBUFFER
- }
- else {
- glPushMatrix();
- glTranslatef( -1.0, 0.85+3.0*fabs( cos(0.01*spin) ), 0.0 );
- glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
- glRotatef( spin, 1.0, 0.5, 0.0 );
- glScalef( 0.5, 0.5, 0.5 );
- glCallList( objects_list[1] );
- glPopMatrix();
-
- glPushMatrix();
- glTranslatef( 1.0, 1.5, 0.0 );
- glRotatef( spin, 1.0, 0.5, 0.0 );
- glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
- glCallList( objects_list[0] );
- glPopMatrix();
- }
-#endif
-}
-
-
-
-static void draw_table( void )
-{
- glCallList( table_list );
-}
-
-
-
-static void draw_scene( void )
-{
- static GLfloat light_pos[] = { 0.0, 20.0, 0.0, 1.0 };
- GLfloat dist = 20.0;
- GLfloat eyex, eyey, eyez;
-
- glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-
-
- eyex = dist * cos(yrot*DEG2RAD) * cos(xrot*DEG2RAD);
- eyez = dist * sin(yrot*DEG2RAD) * cos(xrot*DEG2RAD);
- eyey = dist * sin(xrot*DEG2RAD);
-
- /* view from top */
- glPushMatrix();
- gluLookAt( eyex, eyey, eyez, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0 );
-
- glLightfv( GL_LIGHT0, GL_POSITION, light_pos );
-
- /* draw table into stencil planes */
- glDisable( GL_DEPTH_TEST );
- glEnable( GL_STENCIL_TEST );
- glStencilFunc( GL_ALWAYS, 1, 0xffffffff );
- glStencilOp( GL_REPLACE, GL_REPLACE, GL_REPLACE );
- glColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
- draw_table();
- glColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
-
- glEnable( GL_DEPTH_TEST );
-
- /* render view from below (reflected viewport) */
- /* only draw where stencil==1 */
- if (eyey>0.0) {
- glPushMatrix();
-
- glStencilFunc( GL_EQUAL, 1, 0xffffffff ); /* draw if ==1 */
- glStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
- glScalef( 1.0, -1.0, 1.0 );
-
- /* Reposition light in reflected space. */
- glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
-
- draw_objects(eyex, eyey, eyez);
- glPopMatrix();
-
- /* Restore light's original unreflected position. */
- glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
- }
-
- glDisable( GL_STENCIL_TEST );
-
- glEnable( GL_BLEND );
- glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
-
- glEnable( GL_TEXTURE_2D );
- draw_table();
- glDisable( GL_TEXTURE_2D );
- glDisable( GL_BLEND );
-
- /* view from top */
- glPushMatrix();
-
- draw_objects(eyex, eyey, eyez);
-
- glPopMatrix();
-
- glPopMatrix();
-
- if (ShowBuffer == GL_DEPTH) {
- ShowDepthBuffer(Width, Height, 1.0, 0.0);
- }
- else if (ShowBuffer == GL_STENCIL) {
- ShowStencilBuffer(Width, Height, 255.0, 0.0);
- }
- else if (ShowBuffer == GL_ALPHA) {
- ShowAlphaBuffer(Width, Height);
- }
-
- glutSwapBuffers();
-
- {
- GLint t = glutGet(GLUT_ELAPSED_TIME);
- Frames++;
- if (t - T0 >= 5000) {
- GLfloat seconds = (t - T0) / 1000.0;
- GLfloat fps = Frames / seconds;
- printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps);
- T0 = t;
- Frames = 0;
- }
- }
-}
-
-
-static void idle( void )
-{
- static double t0 = -1.;
- double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
- if (t0 < 0.0)
- t0 = t;
- dt = t - t0;
- t0 = t;
- spin += 60.0 * dt;
- yrot += 90.0 * dt;
- glutPostRedisplay();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
- (void) x;
- (void) y;
- if (key == 'd') {
- ShowBuffer = GL_DEPTH;
- }
- else if (key == 's') {
- ShowBuffer = GL_STENCIL;
- }
- else if (key == 'a') {
- ShowBuffer = GL_ALPHA;
- }
- else if (key == ' ') {
- Anim = !Anim;
- if (Anim)
- glutIdleFunc(idle);
- else
- glutIdleFunc(NULL);
- }
- else if (key==27) {
- exit(0);
- }
- else {
- ShowBuffer = GL_NONE;
- }
- glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
- (void) x;
- (void) y;
- switch (key) {
- case GLUT_KEY_UP:
- xrot += 3.0;
- if ( xrot > 85 )
- xrot = 85;
- break;
- case GLUT_KEY_DOWN:
- xrot -= 3.0;
- if ( xrot < 5 )
- xrot = 5;
- break;
- case GLUT_KEY_LEFT:
- yrot += 3.0;
- break;
- case GLUT_KEY_RIGHT:
- yrot -= 3.0;
- break;
- }
- glutPostRedisplay();
-}
-
-
-int main( int argc, char *argv[] )
-{
- glutInit(&argc, argv);
- glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH | GLUT_STENCIL | GLUT_ALPHA);
- glutInitWindowPosition( 0, 0 );
- glutInitWindowSize( Width, Height );
- glutCreateWindow(argv[0]);
- glutReshapeFunc(reshape);
- glutDisplayFunc(draw_scene);
- glutKeyboardFunc(Key);
- glutSpecialFunc(SpecialKey);
- glutIdleFunc(idle);
- init();
- glutMainLoop();
- return 0;
-}
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