static void initializeGL(ModeInfo *mi, GLsizei width, GLsizei height)
{
pulsarstruct *gp = &Pulsar[MI_SCREEN(mi)];
GLfloat fogColor[4] = { 0.1, 0.1, 0.1, 0.1 };
glViewport( 0, 0, width, height );
resetProjection();
if (do_depth)
glEnable(GL_DEPTH_TEST);
if (do_antialias) {
do_blend = 1;
glEnable(GL_LINE_SMOOTH);
}
if (do_blend) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
if (do_light) {
glShadeModel(GL_SMOOTH);
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
}
# ifdef HAVE_JWZGLES /* #### glPolygonMode other than GL_FILL unimplemented */
do_wire = 0;
# endif
if (do_wire)
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
else
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
if (do_fog) {
glEnable(GL_FOG);
glFogi(GL_FOG_MODE, GL_LINEAR);
glFogfv(GL_FOG_COLOR, fogColor);
glFogf(GL_FOG_DENSITY, 0.35);
/* glHint(GL_FOG_HINT, GL_FASTEST); */
glFogf(GL_FOG_START, 50.0);
glFogf(GL_FOG_END, 100.0);
}
if (do_texture)
Create_Texture(mi, which_image);
GenerateQuad(gp);
}
static GLvoid drawScene(ModeInfo * mi)
{
pulsarstruct *gp = &Pulsar[MI_SCREEN(mi)];
/* check_gl_error ("drawScene"); */
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/* we have to do this here because the FPS meter turns these 3 features off!! */
{
if (do_light) {
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
}
if (do_texture) {
glEnable(GL_TEXTURE_2D);
}
if (do_blend) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
}
resetProjection();
/* use XYZ scaling factors to change the size of the pulsar */
glScalef(gp->scale_x, gp->scale_y, gp->scale_z);
drawQuads(gp);
mi->polygon_count = num_quads;
/* update the scaling factors- cyclic */
gp->scale_x = cos(gp->frame/360.)*10.;
gp->scale_y = sin(gp->frame/360.)*10.;
gp->scale_z = 1;
/* increment frame-counter */
gp->frame++;
/* check_gl_error ("drawScene"); */
}
/* Standard reshape function */
ENTRYPOINT void
reshape_gflux(ModeInfo *mi, int width, int height)
{
glViewport( 0, 0, width, height );
resetProjection();
}
/* Standard reshape function */
ENTRYPOINT void
reshape_pulsar(ModeInfo *mi, int width, int height)
{
glViewport( 0, 0, MI_WIDTH(mi), MI_HEIGHT(mi) );
resetProjection();
}
