int d2_init(const char *title, int width, int height, render_handler render) {
int argc = 0;
char **argv = 0;
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(width, height);
glutCreateWindow(title);
user_render = render;
glutDisplayFunc(draw);
enable_2d(width, height);
glColor3f(1.0f, 1.0f, 1.0f);
return 0;
}
void render() {
int i;
//Typical render pass
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//First render background and menu if it is enabled
enable_2d();
glEnable(GL_TEXTURE_2D);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glVertexPointer(2, GL_FLOAT, 0, shadow_vertices);
glTexCoordPointer(2, GL_FLOAT, 0, shadow_tex_coord);
glBindTexture(GL_TEXTURE_2D, shadow);
//glColor4f(0.85f, 0.85f, 0.85f, 1.0f);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
if (menu_active || menu_show_animation || menu_hide_animation) {
glTranslatef(pos_x, pos_y, 0.0f);
for (i = 0; i < 4; i++) {
if (i == selected) {
glVertexPointer(2, GL_FLOAT, 0, radio_btn_selected_vertices);
glTexCoordPointer(2, GL_FLOAT, 0, radio_btn_selected_tex_coord);
glBindTexture(GL_TEXTURE_2D, radio_btn_selected);
} else {
glVertexPointer(2, GL_FLOAT, 0, radio_btn_unselected_vertices);
glTexCoordPointer(2, GL_FLOAT, 0,
radio_btn_unselected_tex_coord);
glBindTexture(GL_TEXTURE_2D, radio_btn_unselected);
}
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glTranslatef(0.0f, 60.0f, 0.0f);
}
glColor4f(0.35f, 0.35f, 0.35f, 1.0f);
bbutil_render_text(font, "Color Menu", 10.0f, 10.0f);
bbutil_render_text(font, "Red", 70.0f, -40.0f);
bbutil_render_text(font, "Green", 70.0f, -100.0f);
bbutil_render_text(font, "Blue", 70.0f, -160.0f);
bbutil_render_text(font, "Yellow", 70.0f, -220.0f);
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_TEXTURE_2D);
//Then render the cube
enable_3d();
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_DEPTH_TEST);
glTranslatef(cube_pos_x, cube_pos_y, cube_pos_z);
glRotatef(30.0f, 1.0f, 0.0f, 0.0f);
glRotatef(15.0f, 0.0f, 0.0f, 1.0f);
glRotatef(angle, 0.0f, 1.0f, 0.0f);
glColor4f(cube_color[0], cube_color[1], cube_color[2], cube_color[3]);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, cube_vertices);
glNormalPointer(GL_FLOAT, 0, cube_normals);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDrawArrays(GL_TRIANGLE_STRIP, 4, 4);
glDrawArrays(GL_TRIANGLE_STRIP, 8, 4);
glDrawArrays(GL_TRIANGLE_STRIP, 12, 4);
glDrawArrays(GL_TRIANGLE_STRIP, 16, 4);
glDrawArrays(GL_TRIANGLE_STRIP, 20, 4);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisable(GL_LIGHTING);
glDisable(GL_LIGHT0);
glDisable(GL_COLOR_MATERIAL);
glDisable(GL_DEPTH_TEST);
//Use utility code to update the screen
bbutil_swap();
}
/**
* main render function
*/
void render() {
counter++;
if(counter >= 36000){
counter = 0;
}
//Typical render pass
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// update dimensions
enable_2d();
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glPushMatrix();
// if in portrait mode
if (oriention_side_up > 0)
{
glVertexPointer(2, GL_FLOAT, 0, verticesH);
glTexCoordPointer(2, GL_FLOAT, 0, tex_coordH);
}
// if in landscape mode
else
{
glVertexPointer(2, GL_FLOAT, 0, vertices);
glTexCoordPointer(2, GL_FLOAT, 0, tex_coord);
}
//portrait or landscape?
glBindTexture(GL_TEXTURE_2D, oriention_side_up>0?backgroundH:background);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glPopMatrix();
pp = points.begin();
while (pp != points.end()) {
if (pp->visible) {
// draw touchpoint
glPushMatrix();
glTranslatef(pp->getX(), (oriention_side_up>0?1024:600) - pp->getY(), 0);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glVertexPointer(2, GL_FLOAT, 0, verticesTouchpoint);
glTexCoordPointer(2, GL_FLOAT, 0, tex_coord_touchpoint);
glBindTexture(GL_TEXTURE_2D, touchpoint);
glPushMatrix();
glRotatef((float) ((float)(pp->startRotation) + (float) counter / 0.25f), 0, 0, 1);
glPushMatrix();
glTranslatef(-60, -60, 0);
glColor4f(pp->r,pp->g,pp->b,1);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glPopMatrix();
glPopMatrix();
glPopMatrix();
// draw touchpoint number
glPushMatrix();
glColor4f(0.3f,0.3f,0.3f,1.0f);
char buffer [33];
itoa (pp->id+1,buffer,10);
glTranslatef(pp->getX()+50,(oriention_side_up>0?1024:600)-pp->getY()+50,0);
glPushMatrix();
bbutil_render_text(font,buffer,0,0);
glPopMatrix();
glPopMatrix();
}
pp++;
}
glColor4f(1.0f,1.0f,1.0f,1.0f);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
//Use utility code to update the screen
bbutil_swap();
}
