/*------------------------------------*/
void loadFace(GLenum target, char *filename)
{
pngRawInfo png;
GLenum format;
png.Data = 0;
png.Palette = 0;
pngLoadRaw(filename, &png);
if(png.Palette)
{
fprintf(stderr, "error - \"%s\" - paletted images not supported.\n", filename);
exit(0);
}
if(png.Alpha)
format = GL_RGBA;
else
format = GL_RGB;
if(mipmap)
{
gluBuild2DMipmaps(target, png.Components,
png.Width, png.Height,
format, GL_UNSIGNED_BYTE, png.Data);
}
else
{
glTexImage2D(target, 0, png.Components,
png.Width, png.Height, 0,
format, GL_UNSIGNED_BYTE, png.Data);
}
free(png.Data);
}
void Texture::BindTexture()
{
glGenTextures(1, &m_texture_id);
glBindTexture(GL_TEXTURE_2D, m_texture_id);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glTranslatef(0.5, 0.5, 0.0);
glScalef(0.5, 0.5, 1.0);
glMatrixMode(GL_MODELVIEW);
if ( m_pData == NULL ) { // pnt format
pngLoadRaw(m_sFileName.c_str(), &m_pngInfo);
m_width = m_pngInfo.Width;
m_height = m_pngInfo.Height;
m_alpha = OFF_ALPHA;
m_depth = 3;
m_pData = new byte[m_height * m_width * m_depth];
//swap
for( int i = 0; i < m_height; i++ ) {
for( int j = 0; j < m_width; j++ ) {
m_pData[(i * m_width + j) * 3 + 0] = m_pngInfo.Data[((m_height - i) * m_width + j) * 3 + 0];
m_pData[(i * m_width + j) * 3 + 1] = m_pngInfo.Data[((m_height - i) * m_width + j) * 3 + 1];
m_pData[(i * m_width + j) * 3 + 2] = m_pngInfo.Data[((m_height - i) * m_width + j) * 3 + 2];
}
}
free(m_pngInfo.Data);
glTexImage2D(GL_TEXTURE_2D, 0, 3, GetWidth(), GetHeight(),
0, GL_RGB, GL_UNSIGNED_BYTE, GetData());
}
else {
glTexImage2D(GL_TEXTURE_2D, 0, 3, GetWidth(), GetHeight(),
0, GL_RGBA, GL_UNSIGNED_BYTE, GetData());
}
}
void init(void)
{
glEnable(GL_DEPTH_TEST);
glClearColor(0.6, 0.6, 0.6, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
pngLoadRaw("terrain5.png", &info);
setheight();
move[1] = bilinear(move[0], move[2]);
tri[0] = Vec3(0, bilinear(0, 0.5), 0.5);
tri[1] = Vec3(2.5, bilinear(2.5, 0), 0);
tri[2] = Vec3(0, bilinear(0, -0.5), -0.5);
car = glmReadOBJ("porsche.obj");
glmUnitize(car);
glmScale(car, 15);
glmFacetNormals(car);
glmVertexNormals(car, 90);
glEnable(GL_TEXTURE_2D);
}
