static void Init(void)
{
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glShadeModel(GL_SMOOTH);
glEnable(GL_DEPTH_TEST);
InitMaterials();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef( 0.0, 0.0, -6.0 );
#ifdef GL_EXT_vertex_array
if (use_vertex_arrays)
{
glVertexPointerEXT( 3, GL_FLOAT, 0, numverts, verts );
glNormalPointerEXT( GL_FLOAT, 0, numverts, norms );
glEnable( GL_VERTEX_ARRAY_EXT );
glEnable( GL_NORMAL_ARRAY_EXT );
}
#endif
}
static void ModeMenu(int m)
{
m &= allowed;
if (!m) return;
if (m==QUIT)
exit(0);
if (m==GLINFO) {
printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
printf("GL_EXTENSIONS: %s\n", (char *) glGetString(GL_EXTENSIONS));
printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
return;
}
if (CHANGED(state, m, FILTER_MASK)) {
UPDATE(state, m, FILTER_MASK);
if (m & LINEAR_FILTER) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
}
if (CHANGED(state, m, LIGHT_MASK)) {
UPDATE(state, m, LIGHT_MASK);
if (m & LIT) {
glEnable(GL_LIGHTING);
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
glDisable(GL_TEXTURE_2D);
}
else if (m & UNLIT) {
glDisable(GL_LIGHTING);
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
glDisable(GL_TEXTURE_2D);
}
else if (m & REFLECT) {
glDisable(GL_LIGHTING);
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
glEnable(GL_TEXTURE_2D);
}
}
if (CHANGED(state, m, SHADE_MASK)) {
UPDATE(state, m, SHADE_MASK);
if (m & SHADE_SMOOTH)
glShadeModel(GL_SMOOTH);
else
glShadeModel(GL_FLAT);
}
if (CHANGED(state, m, CLIP_MASK)) {
UPDATE(state, m, CLIP_MASK);
if (m & USER_CLIP) {
glEnable(GL_CLIP_PLANE0);
} else {
glDisable(GL_CLIP_PLANE0);
}
}
if (CHANGED(state, m, FOG_MASK)) {
UPDATE(state, m, FOG_MASK);
if (m & FOG) {
glEnable(GL_FOG);
}
else {
glDisable(GL_FOG);
}
}
if (CHANGED(state, m, STIPPLE_MASK)) {
UPDATE(state, m, STIPPLE_MASK);
if (m & STIPPLE) {
glEnable(GL_POLYGON_STIPPLE);
}
else {
glDisable(GL_POLYGON_STIPPLE);
}
}
if (CHANGED(state, m, POLYGON_MASK)) {
UPDATE(state, m, POLYGON_MASK);
if (m & POLYGON_FILL) {
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
else {
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
}
}
#ifdef GL_EXT_vertex_array
if (CHANGED(state, m, (LOCK_MASK|RENDER_STYLE_MASK|PRIMITIVE_MASK)))
{
if (m & (PRIMITIVE_MASK)) {
UPDATE(state, m, (PRIMITIVE_MASK));
}
if (m & (RENDER_STYLE_MASK)) {
UPDATE(state, m, (RENDER_STYLE_MASK));
}
if (m & LOCK_MASK) {
UPDATE(state, m, (LOCK_MASK));
}
print_flags("primitive", state & PRIMITIVE_MASK);
print_flags("render style", state & RENDER_STYLE_MASK);
if ((state & PRIMITIVE_MASK) != STRIPS &&
((state & RENDER_STYLE_MASK) == DRAW_ELTS ||
(state & RENDER_STYLE_MASK) == ARRAY_ELT ||
(state & PRIMITIVE_MASK) == POINTS))
{
fprintf(stderr, "enabling small arrays\n");
/* Rendering any primitive with draw-element/array-element
* --> Can't do strips here as ordering has been lost in
* compaction process...
*/
glVertexPointerEXT( 3, GL_FLOAT, sizeof(data[0]), numuniq,
compressed_data );
glNormalPointerEXT( GL_FLOAT, sizeof(data[0]), numuniq,
&compressed_data[0][3]);
#ifdef GL_EXT_compiled_vertex_array
if (allowed & LOCKED) {
if (state & LOCKED) {
glLockArraysEXT( 0, numuniq );
} else {
glUnlockArraysEXT();
}
}
#endif
}
else if ((state & PRIMITIVE_MASK) == TRIANGLES &&
(state & RENDER_STYLE_MASK) == DRAW_ARRAYS) {
fprintf(stderr, "enabling big arrays\n");
/* Only get here for TRIANGLES and drawarrays
*/
glVertexPointerEXT( 3, GL_FLOAT, sizeof(data[0]), (numverts-2) * 3,
expanded_data );
glNormalPointerEXT( GL_FLOAT, sizeof(data[0]), (numverts-2) * 3,
&expanded_data[0][3]);
#ifdef GL_EXT_compiled_vertex_array
if (allowed & LOCKED) {
if (state & LOCKED) {
glLockArraysEXT( 0, (numverts-2)*3 );
} else {
glUnlockArraysEXT();
}
}
#endif
}
else {
fprintf(stderr, "enabling normal arrays\n");
glVertexPointerEXT( 3, GL_FLOAT, sizeof(data[0]), numverts, data );
glNormalPointerEXT( GL_FLOAT, sizeof(data[0]), numverts, &data[0][3]);
#ifdef GL_EXT_compiled_vertex_array
if (allowed & LOCKED) {
if (state & LOCKED) {
glLockArraysEXT( 0, numverts );
} else {
glUnlockArraysEXT();
}
}
#endif
}
}
#endif
if (m & DLIST_MASK) {
UPDATE(state, m, DLIST_MASK);
}
if (m & MATERIAL_MASK) {
UPDATE(state, m, MATERIAL_MASK);
}
print_flags("new flags", state);
glutPostRedisplay();
}
