лаба 3, первый лист

#include <stdio.h>
#include <windows.h>
#include <gl/glut.h>


GLfloat ctlarrayfirst[3][2][4] =
{ 0.5,0.0,-0.3,1.0,0.5,0.0,
0.3,1.0,0.0,0.866*0.55,-0.3*0.55, 0.55,
0.0,0.866*0.55,0.3*0.55, 0.55, -0.5,0.0,
-0.3,1.0,-0.5,0.0,0.3,1.0 };

GLfloat ctlarraysecond[3][2][4] =
{ 0.5,0.0,-0.5,1.0,0.5,0.0,
0.5,1.0,0.0,0.866*0.55,-0.5*0.55, 0.55,
0.0,0.866*0.55,0.5*0.55, 0.55, -0.5,0.0,
-0.5,1.0,-0.5,0.0,0.5,1.0 };
GLfloat TexP[] = { 1.0,0.0,0.0,0.0 };
GLfloat TexP1[] = { 0.0,1.0,0.0,0.0 };
GLfloat TexP2[] = { 0.0,0.0,1.0,0.0 };
GLubyte TexI[] = { 255,0,0,255,0,0,255,255,0,255,255,0,0,255,0,0,255,0,0,0,255,0,0,255 };
GLfloat texptsfirst[2][2][2] = { 0,0,0,8,8,0,8,8 };
GLfloat texptssecond[2][2][2] = { 0,0,0,1,1,0,1,1 };
GLUnurbsObj *theNurb;
GLUquadricObj* theqw; GLubyte *Iz_RGB;



void initfirst()
{
    glClearColor(0.5, 0.75, 0.75, 1);
    theNurb = gluNewNurbsRenderer();
    theqw = gluNewQuadric();
    glEnable(GL_DEPTH_TEST);
    gluNurbsProperty(theNurb, GLU_SAMPLING_TOLERANCE, 25.0);
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    glTexParameterf(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexImage1D(GL_TEXTURE_1D, 0, 3, 8, 0, GL_RGB, GL_UNSIGNED_BYTE, TexI);
    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
    gluQuadricTexture(theqw, true);
    glEnable(GL_TEXTURE_1D);
}

void Displayfirst() {
    GLfloat knot[] = { 0.0,0.0,0.0,1.0,1.0,1.0 };
    GLfloat knot1[] = { 0.0,0.0,1.0,1.0 };
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glRotatef(1, 1.0, 1.0, 1.0);
    glColor3f(1, 0, 0);
    //glEnable(GL_TEXTURE_GEN_S);
    //glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
    //glTexGenfv(GL_S, GL_OBJECT_PLANE, TexP2);
    glMap2f(GL_MAP2_TEXTURE_COORD_1, 0, 1, 2, 2, 0, 1, 4, 2, &texptsfirst[0][0][0]);
    glEnable(GL_MAP2_TEXTURE_COORD_1);
    gluSphere(theqw, 0.3, 50, 50);
    //glutSolidTeapot(0.3);
    gluBeginSurface(theNurb);
    gluNurbsSurface
    (theNurb,
        6, knot,
        4, knot1,
        2 * 4,
        4,
        &ctlarrayfirst[0][0][0],
        3, 2,
        GL_MAP2_VERTEX_4);
    gluEndSurface(theNurb);
    glutPostRedisplay(); glutSwapBuffers();
}

void file_read() {
    FILE* stream;
    BITMAPFILEHEADER FileHeader;
    BITMAPINFOHEADER InfoHeader;
    errno_t err = fopen_s(&stream, "C:\\Users\\st\\Documents\\Thinking_Face_Emoji.bmp", "rb");
    fread(&FileHeader, sizeof(FileHeader), 1, stream);
    fread(&InfoHeader, sizeof(InfoHeader), 1, stream);
    fseek(stream, FileHeader.bfOffBits, SEEK_SET);
    int w = InfoHeader.biWidth;
    int h = InfoHeader.biHeight;
    Iz_RGB = (GLubyte*)malloc(w*h * 3);
    fread(Iz_RGB, w*h * 3, 1, stream);
    fclose(stream);
    for (int i = 0; i < w*h * 3; i += 3) {
        GLubyte m1 = Iz_RGB[i];
        Iz_RGB[i] = Iz_RGB[i + 2];
        Iz_RGB[i + 2] = m1;
    }
}

void initsecond() {
    glClearColor(0.1, 0.98, 0.3, 1);
    theNurb = gluNewNurbsRenderer();
    theqw = gluNewQuadric();
    glEnable(GL_DEPTH_TEST);
    gluNurbsProperty(theNurb, GLU_SAMPLING_TOLERANCE, 25.0);
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexImage2D(GL_TEXTURE_2D, 0, 3, 64, 64, 0, GL_RGB, GL_UNSIGNED_BYTE, Iz_RGB);
    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
    gluQuadricTexture(theqw, true);
    glEnable(GL_TEXTURE_2D);
    free(Iz_RGB);
}

void Displaysecond() {
    GLfloat knot[] = { 0.0,0.0,0.0,1.0,1.0,1.0 };
    GLfloat knot1[] = { 0.0,0.0,1.0,1.0 };
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glRotatef(1.5, 1.0, 1.0, 1.0);
    glColor3f(1, 0, 0);
    glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, 0, 1, 4, 2, &texptsfirst[0][0][0]);
    glEnable(GL_MAP2_TEXTURE_COORD_2);
    gluSphere(theqw, 0.3, 50, 50);
    gluBeginSurface(theNurb);
    gluNurbsSurface
    (theNurb,
        6, knot,
        4, knot1,
        2 * 4,
        4,
        &ctlarraysecond[0][0][0],
        3, 2,
        GL_MAP2_VERTEX_4);
    gluEndSurface(theNurb);
    glutPostRedisplay(); glutSwapBuffers();
}




void main() {
    file_read();
    glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
    glutInitWindowSize(480, 480);
    glutInitWindowPosition(100, 100);
    glutCreateWindow(" ");
    initsecond();
    glutDisplayFunc(Displaysecond);
    glutMainLoop();
}