-/* xscreensaver, Copyright (c) 1998-2004 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1998-2012 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
int anim_pause; /* countdown before animating again */
GLfloat anim_r, anim_y, anim_z; /* relative position during anims */
+ Bool facing_p;
int state, nstates;
lament_type *states;
}
+static void
+check_facing(ModeInfo *mi)
+{
+ lament_configuration *lc = &lcs[MI_SCREEN(mi)];
+
+ GLdouble m[16], p[16], x, y, z;
+ GLint v[4];
+ glGetDoublev (GL_MODELVIEW_MATRIX, m);
+ glGetDoublev (GL_PROJECTION_MATRIX, p);
+ glGetIntegerv (GL_VIEWPORT, v);
+
+ /* See if a coordinate 5 units in front of the door is near the
+ center of the screen. */
+
+ gluProject (-5, 0, 0, m, p, v, &x, &y, &z);
+ x = (x / MI_WIDTH(mi)) - 0.5;
+ y = (y / MI_HEIGHT(mi)) - 0.5;
+ lc->facing_p = (z < 0.9 &&
+ x > -0.02 && x < 0.02 &&
+ y > -0.02 && y < 0.02);
+}
+
+
+
+static void
+scale_for_window(ModeInfo *mi)
+{
+ int target_size = 180;
+ int win_size = (MI_WIDTH(mi) > MI_HEIGHT(mi) ? MI_HEIGHT(mi) : MI_WIDTH(mi));
+
+ /* This scale makes the box take up most of the window */
+ glScalef(8, 8, 8);
+
+ /* But if the window is more than a little larger than our target size,
+ scale the object back down, so that the bits drawn on the screen end
+ up rougly target_size across (actually it ends up a little larger.)
+ Note that the image-map bits we have are 128x128. Therefore, if the
+ image is magnified a lot, it looks pretty blocky. So it's better to
+ have a 128x128 animation on a 1280x1024 screen that looks good, than
+ a 1024x1024 animation that looks really pixelated.
+ */
+ if (win_size > 640 &&
+ win_size > target_size * 1.5)
+ {
+ GLfloat ratio = ((GLfloat) target_size / (GLfloat) win_size);
+ ratio *= 2.0;
+ glScalef(ratio, ratio, ratio);
+ }
+}
+
+
static void
draw(ModeInfo *mi)
{
/* Make into the screen be +Y right be +X, and up be +Z. */
glRotatef(-90.0, 1.0, 0.0, 0.0);
- /* Scale it up. */
- glScalef(4.0, 4.0, 4.0);
+ scale_for_window (mi);
-#ifdef DEBUG
+#if 0
glPushMatrix();
{
/* Shift to the upper left, and draw the vanilla box. */
/* Shift to the lower right, and draw the animated object. */
glTranslatef(0.6, 0.0, -0.6);
-#endif /* DEBUG */
+#endif /* 0 */
glPushMatrix();
glRotatef (lc->roty * 360, 0.0, 1.0, 0.0);
glRotatef (lc->rotz * 360, 0.0, 0.0, 1.0);
+ check_facing(mi);
+
switch (lc->type)
{
case LAMENT_BOX:
if (lc->anim_r >= 112.0)
{
- GLfloat hysteresis = 0.05;
-
lc->anim_r = 112.0;
lc->anim_z = 0.0;
lc->anim_pause = pause3;
-
- if (lc->rotx >= -hysteresis &&
- lc->rotx <= hysteresis &&
- ((lc->rotz >= (0.25 - hysteresis) &&
- lc->rotz <= (0.25 + hysteresis)) ||
- (lc->rotz >= (-0.25 - hysteresis) &&
- lc->rotz <= (-0.25 + hysteresis))))
- {
- lc->type = LAMENT_LID_ZOOM;
- lc->rotx = 0.00;
- lc->rotz = (lc->rotz < 0 ? -0.25 : 0.25);
- }
- else
- {
- lc->type = LAMENT_LID_CLOSE;
- }
- }
+ lc->type = (lc->facing_p ? LAMENT_LID_ZOOM : LAMENT_LID_CLOSE);
+ }
break;
case LAMENT_LID_CLOSE:
ENTRYPOINT void
reshape_lament(ModeInfo *mi, int width, int height)
{
- int target_size = 180;
- int win_size = (width > height ? height : width);
GLfloat h = (GLfloat) height / (GLfloat) width;
-
glViewport(0, 0, (GLint) width, (GLint) height);
-/* glViewport(-600, -600, 1800, 1800); */
-
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0.0, 0.0, -40.0);
-
- /* This scale makes the box take up most of the window */
- glScalef(2.0, 2.0, 2.0);
-
- /* But if the window is more than a little larger than our target size,
- scale the object back down, so that the bits drawn on the screen end
- up rougly target_size across (actually it ends up a little larger.)
- Note that the image-map bits we have are 128x128. Therefore, if the
- image is magnified a lot, it looks pretty blocky. So it's better to
- have a 128x128 animation on a 1280x1024 screen that looks good, than
- a 1024x1024 animation that looks really pixelated.
- */
- if (win_size > target_size * 1.5)
- {
- GLfloat ratio = ((GLfloat) target_size / (GLfloat) win_size);
- ratio *= 2.0;
- glScalef(ratio, ratio, ratio);
- }
-
- /* The depth buffer will be cleared, if needed, before the
- * next frame. Right now we just want to black the screen.
- */
glClear(GL_COLOR_BUFFER_BIT);
}
parse_image_data(mi);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, lc->texture->width);
+ /* messes up -fps */
+ /* glPixelStorei(GL_UNPACK_ROW_LENGTH, lc->texture->width); */
for (i = 0; i < 6; i++)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
- glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
}
#else /* !HAVE_GLBINDTEXTURE */
projects / xscreensaver / blobdiff