* which can be obtained from http://www.linas.org/gle/index.html
*/
-/*-
- * due to a Bug/feature in VMS X11/Intrinsic.h has to be placed before xlock.
- * otherwise caddr_t is not defined correctly
- */
-
-#include <X11/Intrinsic.h>
-
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef STANDALONE
-# define PROGCLASS "Screensaver"
-# define HACK_INIT init_screensaver
-# define HACK_DRAW draw_screensaver
-# define HACK_RESHAPE reshape_screensaver
-# define screensaver_opts xlockmore_opts
-#define DEFAULTS "*delay: 10000 \n" \
- "*showFPS: False \n" \
- "*light: True \n" \
- "*wire: False \n" \
- "*texture: False \n" \
- "*image: BUILTIN \n" \
- "*name: RANDOM \n" \
- "*example: 0 \n"
+#define DEFAULTS "*delay: 20000 \n" \
+ "*showFPS: False \n" \
+ "*wireframe: False \n"
+# define refresh_extrusion 0
+# define release_extrusion 0
# include "xlockmore.h" /* from the xscreensaver distribution */
#else /* !STANDALONE */
# include "xlock.h" /* from the xlockmore distribution */
# endif /* VMS */
#endif
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <malloc.h>
-#include <GL/gl.h>
-#include <GL/glu.h>
-#ifdef HAVE_GLE3
-#include <GL/gle.h>
-#else
-#include <GL/tube.h>
-#endif
-
#undef countof
#define countof(x) (sizeof((x))/sizeof((*x)))
#include "xpm-ximage.h"
+#include "rotator.h"
+#include "gltrackball.h"
+#include "extrusion.h"
#define checkImageWidth 64
#define checkImageHeight 64
-extern void InitStuff_helix2(void);
-extern void DrawStuff_helix2(void);
-extern void InitStuff_helix3(void);
-extern void DrawStuff_helix3(void);
-extern void InitStuff_helix4(void);
-extern void DrawStuff_helix4(void);
-extern void InitStuff_joinoffset(void);
-extern void DrawStuff_joinoffset(void);
-extern void InitStuff_screw(void);
-extern void DrawStuff_screw(void);
-extern void InitStuff_taper(void);
-extern void DrawStuff_taper(void);
-extern void InitStuff_twistoid(void);
-extern void DrawStuff_twistoid(void);
-
-
-
#define WIDTH 640
#define HEIGHT 480
#define DEF_LIGHT "True"
-#define DEF_WIRE "False"
#define DEF_TEXTURE "False"
-#define DEF_TEXTURE_QUALITY "False"
+#define DEF_TEX_QUAL "False"
#define DEF_MIPMAP "False"
#define DEF_NAME "RANDOM"
#define DEF_IMAGE "BUILTIN"
static int do_light;
-static int do_wire;
static int do_texture;
-static int do_texture_quality;
+static int do_tex_qual;
static int do_mipmap;
static char *which_name;
static char *which_image;
static XrmOptionDescRec opts[] = {
- {"-light", ".extrusion.light", XrmoptionNoArg, (caddr_t) "true" },
- {"+light", ".extrusion.light", XrmoptionNoArg, (caddr_t) "false" },
- {"-wire", ".extrusion.wire", XrmoptionNoArg, (caddr_t) "true" },
- {"+wire", ".extrusion.wire", XrmoptionNoArg, (caddr_t) "false" },
- {"-texture", ".extrusion.texture", XrmoptionNoArg, (caddr_t) "true" },
- {"+texture", ".extrusion.texture", XrmoptionNoArg, (caddr_t) "false" },
- {"-texture", ".extrusion.texture", XrmoptionNoArg, (caddr_t) "true" },
- {"+texture_quality", ".extrusion.texture", XrmoptionNoArg, (caddr_t) "false" },
- {"-texture_quality", ".extrusion.texture", XrmoptionNoArg, (caddr_t) "true" },
- {"+mipmap", ".extrusion.mipmap", XrmoptionNoArg, (caddr_t) "false" },
- {"-mipmap", ".extrusion.mipmap", XrmoptionNoArg, (caddr_t) "true" },
- {"-name", ".extrusion.name", XrmoptionSepArg, (caddr_t) NULL },
- {"-image", ".extrusion.image", XrmoptionSepArg, (caddr_t) NULL },
+ {"-light", ".extrusion.light", XrmoptionNoArg, "true" },
+ {"+light", ".extrusion.light", XrmoptionNoArg, "false" },
+ {"-texture", ".extrusion.texture", XrmoptionNoArg, "true" },
+ {"+texture", ".extrusion.texture", XrmoptionNoArg, "false" },
+ {"-texture", ".extrusion.texture", XrmoptionNoArg, "true" },
+ {"+texture_quality", ".extrusion.texture", XrmoptionNoArg, "false" },
+ {"-texture_quality", ".extrusion.texture", XrmoptionNoArg, "true" },
+ {"+mipmap", ".extrusion.mipmap", XrmoptionNoArg, "false" },
+ {"-mipmap", ".extrusion.mipmap", XrmoptionNoArg, "true" },
+ {"-name", ".extrusion.name", XrmoptionSepArg, 0 },
+ {"-image", ".extrusion.image", XrmoptionSepArg, 0 },
};
static argtype vars[] = {
- {(caddr_t *) &do_light, "light", "Light", DEF_LIGHT, t_Bool},
- {(caddr_t *) &do_wire, "wire", "Wire", DEF_WIRE, t_Bool},
- {(caddr_t *) &do_texture, "texture", "Texture", DEF_TEXTURE, t_Bool},
- {(caddr_t *) &do_texture_quality, "texture_quality", "Texture_Quality", DEF_TEXTURE_QUALITY, t_Bool},
- {(caddr_t *) &do_mipmap, "mipmap", "Mipmap", DEF_MIPMAP, t_Bool},
- {(caddr_t *) &which_name, "name", "Name", DEF_NAME, t_String},
- {(caddr_t *) &which_image, "image", "Image", DEF_IMAGE, t_String},
+ {&do_light, "light", "Light", DEF_LIGHT, t_Bool},
+ {&do_texture, "texture", "Texture", DEF_TEXTURE, t_Bool},
+ {&do_tex_qual, "texture_quality", "Texture_Quality", DEF_TEX_QUAL, t_Bool},
+ {&do_mipmap, "mipmap", "Mipmap", DEF_MIPMAP, t_Bool},
+ {&which_name, "name", "Name", DEF_NAME, t_String},
+ {&which_image, "image", "Image", DEF_IMAGE, t_String},
};
{
{"-name num", "example 'name' to draw (helix2, helix3, helix4, joinoffset, screw, taper, twistoid)"},
{"-/+ light", "whether to do enable lighting (slower)"},
- {"-/+ wire", "whether to do use wireframe instead of filled (faster)"},
{"-/+ texture", "whether to apply a texture (slower)"},
{"-image <filename>", "texture image to load"},
{"-/+ texture_quality", "whether to use texture smoothing (slower)"},
{"-/+ mipmap", "whether to use texture mipmap (slower)"},
};
-ModeSpecOpt screensaver_opts = {countof(opts), opts, countof(vars), vars, desc};
+ENTRYPOINT ModeSpecOpt extrusion_opts = {countof(opts), opts, countof(vars), vars, desc};
#ifdef USE_MODULES
-ModStruct screensaver_description =
-{"screensaver", "init_screensaver", "draw_screensaver", "release_screensaver",
- "draw_screensaver", "init_screensaver", NULL, &screensaver_opts,
+ModStruct extrusion_description =
+{"extrusion", "init_extrusion", "draw_extrusion", "release_extrusion",
+ "draw_extrusion", "init_extrusion", NULL, &extrusion_opts,
1000, 1, 2, 1, 4, 1.0, "",
- "OpenGL screensaver", 0, NULL};
+ "OpenGL extrusion", 0, NULL};
#endif
-/* structure for holding the screensaver data */
+/* structure for holding the extrusion data */
typedef struct {
int screen_width, screen_height;
GLXContext *glx_context;
+ rotator *rot;
+ trackball_state *trackball;
+ Bool button_down_p;
+ Bool button2_down_p;
+ int mouse_start_x, mouse_start_y;
+ int mouse_x, mouse_y;
+ int mouse_dx, mouse_dy;
Window window;
XColor fg, bg;
-} screensaverstruct;
-static screensaverstruct *Screensaver = NULL;
-
+ int extrusion_number;
+} extrusionstruct;
+static extrusionstruct *Extrusion = NULL;
-/* convenient access to the screen width */
-static int global_width=640, global_height=480;
/* set up a light */
-static GLfloat lightOnePosition[] = {40.0, 40, 100.0, 0.0};
-static GLfloat lightOneColor[] = {0.99, 0.99, 0.99, 1.0};
+static const GLfloat lightOnePosition[] = {40.0, 40, 100.0, 0.0};
+static const GLfloat lightOneColor[] = {0.99, 0.99, 0.00, 1.0};
-static GLfloat lightTwoPosition[] = {-40.0, 40, 100.0, 0.0};
-static GLfloat lightTwoColor[] = {0.99, 0.99, 0.99, 1.0};
+static const GLfloat lightTwoPosition[] = {-40.0, 40, 100.0, 0.0};
+static const GLfloat lightTwoColor[] = {0.00, 0.99, 0.99, 1.0};
float rot_x=0, rot_y=0, rot_z=0;
-static float dx=0, dy=0, dz=0;
-static float ddx=0, ddy=0, ddz=0;
-static float d_max = 0;
-static int screensaver_number;
+float lastx=0, lasty=0;
-static float max_lastx=300, max_lasty=400;
+static float max_lastx=400, max_lasty=400;
static float min_lastx=-400, min_lasty=-400;
-static float d_lastx=0, d_lasty=0;
-static float dd_lastx=0, dd_lasty=0;
-static float max_dlastx=0, max_dlasty=0;
-float lastx=0, lasty=0;
struct functions {
void (*InitStuff)(void);
like we're looking at them from the back or something
*/
-static struct functions funcs_ptr[] = {
+static const struct functions funcs_ptr[] = {
{InitStuff_helix2, DrawStuff_helix2, "helix2"},
{InitStuff_helix3, DrawStuff_helix3, "helix3"},
{InitStuff_helix4, DrawStuff_helix4, "helix4"},
{InitStuff_twistoid, DrawStuff_twistoid, "twistoid"},
};
-static int num_screensavers = countof(funcs_ptr);
+static int num_extrusions = countof(funcs_ptr);
/* BEGINNING OF FUNCTIONS */
-GLubyte *
+static GLubyte *
Generate_Image(int *width, int *height, int *format)
{
GLubyte *result;
/* Create a texture in OpenGL. First an image is loaded
and stored in a raster buffer, then it's */
-void Create_Texture(ModeInfo *mi, const char *filename)
+static void Create_Texture(ModeInfo *mi, const char *filename)
{
int height, width;
GLubyte *image;
{
XImage *ximage = xpm_file_to_ximage (MI_DISPLAY (mi), MI_VISUAL (mi),
MI_COLORMAP (mi), filename);
- image = ximage->data;
+ image = (GLubyte *) ximage->data;
width = ximage->width;
height = ximage->height;
format = GL_RGBA;
/* perhaps we can edge a bit more speed at the expense of quality */
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
- if (do_texture_quality) {
+ if (do_tex_qual) {
/* with texture_quality, the min and mag filters look *much* nice but are *much* slower */
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
GL_UNSIGNED_BYTE, image);
if (status)
{
- const char *s = gluErrorString (status);
+ const char *s = (char *) gluErrorString (status);
fprintf (stderr, "%s: error mipmapping %dx%d texture: %s\n",
progname, width, height,
(s ? s : "(unknown)"));
}
-/* mostly lifted from lament.c */
static void
-rotate (float *pos, float *v, float *dv, float max_v)
+init_rotation (ModeInfo *mi)
{
- double ppos = *pos;
-
- /* tick position */
- if (ppos < 0)
- ppos = -(ppos + *v);
- else
- ppos += *v;
-
- if (ppos > 360)
- ppos -= 360;
- else if (ppos < 0)
- ppos += 360;
-
- if (ppos < 0) abort();
- if (ppos > 360) abort();
- *pos = (*pos > 0 ? ppos : -ppos);
-
- /* accelerate */
- *v += *dv;
-
- /* clamp velocity */
- if (*v > max_v || *v < -max_v)
- {
- *dv = -*dv;
- }
- /* If it stops, start it going in the other direction. */
- else if (*v < 0)
- {
- if (random() % 4)
- {
- *v = 0;
-
- /* keep going in the same direction */
- if (random() % 2)
- *dv = 0;
- else if (*dv < 0)
- *dv = -*dv;
- }
- else
- {
- /* reverse gears */
- *v = -*v;
- *dv = -*dv;
- *pos = -*pos;
- }
- }
-
- /* Alter direction of rotational acceleration randomly. */
- if (! (random() % 120))
- *dv = -*dv;
-
- /* Change acceleration very occasionally. */
- if (! (random() % 200))
- {
- if (*dv == 0)
- *dv = 0.00001;
- else if (random() & 1)
- *dv *= 1.2;
- else
- *dv *= 0.8;
- }
-}
-
-
-static void
-bounce (float *pos, float *v, float *dv, float max_v)
-{
- *pos += *v;
-
- if (*pos > 1.0)
- *pos = 1.0, *v = -*v, *dv = -*dv;
- else if (*pos < 0)
- *pos = 0, *v = -*v, *dv = -*dv;
-
- if (*pos < 0.0) abort();
- if (*pos > 1.0) abort();
-
- /* accelerate */
- *v += *dv;
-
- /* clamp velocity */
- if (*v > max_v || *v < -max_v)
- {
- *dv = -*dv;
- }
-
- /* Alter direction of rotational acceleration randomly. */
- if (! (random() % 120))
- *dv = -*dv;
-
- /* Change acceleration very occasionally. */
- if (! (random() % 200))
- {
- if (*dv == 0)
- *dv = 0.00001;
- else if (random() & 1)
- *dv *= 1.2;
- else
- *dv *= 0.8;
- }
-}
-
-
-static void
-init_rotation (void)
-{
- rot_x = (float) (random() % (360 * 2)) - 360; /* -360 - 360 */
- rot_y = (float) (random() % (360 * 2)) - 360;
- rot_z = (float) (random() % (360 * 2)) - 360;
-
- /* bell curve from 0-1.5 degrees, avg 0.75 */
- dx = (frand(1) + frand(1) + frand(1)) / 2.0;
- dy = (frand(1) + frand(1) + frand(1)) / 2.0;
- dz = (frand(1) + frand(1) + frand(1)) / 2.0;
-
- d_max = dx * 2;
-
- ddx = 0.004;
- ddy = 0.004;
- ddz = 0.004;
+ extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
+ double spin_speed = 0.5;
+ gp->rot = make_rotator (spin_speed, spin_speed, spin_speed,
+ 0.2,
+ 0.005,
+ True);
+ gp->trackball = gltrackball_init ();
lastx = (random() % (int) (max_lastx - min_lastx)) + min_lastx;
lasty = (random() % (int) (max_lasty - min_lasty)) + min_lasty;
- d_lastx = (frand(1) + frand(1) + frand(1));
- d_lasty = (frand(1) + frand(1) + frand(1));
- max_dlastx = d_lastx * 2;
- max_dlasty = d_lasty * 2;
- dd_lastx = 0.004;
- dd_lasty = 0.004;
}
-/* draw the screensaver once */
-void draw_screensaver(ModeInfo * mi)
+/* draw the extrusion once */
+ENTRYPOINT void
+draw_extrusion(ModeInfo * mi)
{
- screensaverstruct *gp = &Screensaver[MI_SCREEN(mi)];
+ extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
Display *display = MI_DISPLAY(mi);
Window window = MI_WINDOW(mi);
- Window root, child;
- int rootx, rooty, winx, winy;
- unsigned int mask;
- XEvent event;
+ static const GLfloat color[4] = {0.6, 0.6, 0.4, 1.0};
+ /* static const GLfloat spec[4] = {0.6, 0.6, 0.6, 1.0}; */
+ /* static const GLfloat shiny = 40.0; */
+
+ double x, y, z;
if (!gp->glx_context)
return;
- glXMakeCurrent(display, window, *(gp->glx_context));
+ glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(gp->glx_context));
- funcs_ptr[screensaver_number].DrawStuff();
-
- rotate(&rot_x, &dx, &ddx, d_max);
- rotate(&rot_y, &dy, &ddy, d_max);
- rotate(&rot_z, &dz, &ddz, d_max);
+ glPushMatrix();
- /* swallow any ButtonPress events */
- while (XCheckMaskEvent (MI_DISPLAY(mi), ButtonPressMask, &event))
- ;
- /* check the pointer position and button state. */
- XQueryPointer (MI_DISPLAY(mi), MI_WINDOW(mi),
- &root, &child, &rootx, &rooty, &winx, &winy, &mask);
+ gltrackball_rotate (gp->trackball);
+
+ get_rotation (gp->rot, &x, &y, &z,
+ !(gp->button_down_p || gp->button2_down_p));
+ glRotatef (x * 360, 1.0, 0.0, 0.0);
+ glRotatef (y * 360, 0.0, 1.0, 0.0);
+ glRotatef (z * 360, 0.0, 0.0, 1.0);
/* track the mouse only if a button is down. */
- if (mask & (Button1Mask|Button2Mask|Button3Mask|Button4Mask|Button5Mask))
+ if (gp->button2_down_p)
{
- lastx = winx;
- lasty = winy;
- }
- else
- {
- float scale = (max_lastx - min_lastx);
- lastx -= min_lastx;
- lasty -= min_lasty;
- lastx /= scale;
- lasty /= scale;
- d_lastx /= scale;
- d_lasty /= scale;
- dd_lastx /= scale;
- dd_lasty /= scale;
- bounce(&lastx, &d_lastx, &dd_lastx, max_dlastx);
- bounce(&lasty, &d_lasty, &dd_lasty, max_dlasty);
- lastx *= scale;
- lasty *= scale;
- lastx += min_lastx;
- lasty += min_lasty;
- d_lastx *= scale;
- d_lasty *= scale;
- dd_lastx *= scale;
- dd_lasty *= scale;
+ gp->mouse_dx += gp->mouse_x - gp->mouse_start_x;
+ gp->mouse_dy += gp->mouse_y - gp->mouse_start_y;
+ gp->mouse_start_x = gp->mouse_x;
+ gp->mouse_start_y = gp->mouse_y;
}
+ {
+ float scale = (max_lastx - min_lastx);
+ get_position (gp->rot, &x, &y, &z,
+ !(gp->button_down_p || gp->button2_down_p));
+ lastx = x * scale + min_lastx + gp->mouse_dx;
+ lasty = y * scale + min_lasty + gp->mouse_dy;
+ }
+
+ glScalef(0.5, 0.5, 0.5);
+
+ /* glMaterialfv (GL_FRONT_AND_BACK, GL_SPECULAR, spec); */
+ /* glMateriali (GL_FRONT_AND_BACK, GL_SHININESS, shiny); */
+
+ glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, color);
+ glFrontFace(GL_CCW);
+
+ funcs_ptr[gp->extrusion_number].DrawStuff();
+
+ glPopMatrix();
+
if (mi->fps_p) do_fps (mi);
glXSwapBuffers(display, window);
}
/* set up lighting conditions */
-static void SetupLight(void)
+static void
+SetupLight(void)
{
glLightfv (GL_LIGHT0, GL_POSITION, lightOnePosition);
glLightfv (GL_LIGHT0, GL_DIFFUSE, lightOneColor);
glEnable (GL_COLOR_MATERIAL);
}
-/* reset the projection matrix */
-static void resetProjection(void) {
+/* Standard reshape function */
+ENTRYPOINT void
+reshape_extrusion (ModeInfo *mi, int width, int height)
+{
+ GLfloat h = (GLfloat) height / (GLfloat) width;
+
+ glViewport (0, 0, (GLint) width, (GLint) height);
+
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
- glFrustum (-9, 9, -9, 9, 50, 150.0);
+ gluPerspective (30.0, 1/h, 1.0, 100.0);
+
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
-}
+ gluLookAt( 0.0, 0.0, 30.0,
+ 0.0, 0.0, 0.0,
+ 0.0, 1.0, 0.0);
-/* Standard reshape function */
-void
-reshape_screensaver(ModeInfo *mi, int width, int height)
-{
- global_width=width;
- global_height=height;
- glViewport( 0, 0, global_width, global_height );
- resetProjection();
+ glClear(GL_COLOR_BUFFER_BIT);
}
-/* decide which screensaver example to run */
-static void chooseScreensaverExample(void) {
+/* decide which extrusion example to run */
+static void
+chooseExtrusionExample (ModeInfo *mi)
+{
+ extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
int i;
/* call the extrusion init routine */
if (!strncmp(which_name, "RANDOM", strlen(which_name))) {
- screensaver_number = random() % num_screensavers;
+ gp->extrusion_number = random() % num_extrusions;
}
else {
- screensaver_number=-1;
- for (i=0; i < num_screensavers; i++) {
+ gp->extrusion_number=-1;
+ for (i=0; i < num_extrusions; i++) {
if (!strncmp(which_name, funcs_ptr[i].name, strlen(which_name))) {
- screensaver_number = i;
+ gp->extrusion_number = i;
}
}
}
- if (screensaver_number < 0 || screensaver_number >= num_screensavers) {
- fprintf(stderr, "%s: invalid screensaver example number!\n", progname);
- fprintf(stderr, "%s: known screensavers:\n", progname);
- for (i=0; i < num_screensavers; i++)
+ if (gp->extrusion_number < 0 || gp->extrusion_number >= num_extrusions) {
+ fprintf(stderr, "%s: invalid extrusion example number!\n", progname);
+ fprintf(stderr, "%s: known extrusions:\n", progname);
+ for (i=0; i < num_extrusions; i++)
fprintf(stderr,"\t%s\n", funcs_ptr[i].name);
exit(1);
}
- init_rotation();
- funcs_ptr[screensaver_number].InitStuff();
+ init_rotation(mi);
+ funcs_ptr[gp->extrusion_number].InitStuff();
}
+
/* main OpenGL initialization routine */
static void
initializeGL(ModeInfo *mi, GLsizei width, GLsizei height)
int style;
int mode;
- reshape_screensaver(mi, width, height);
+ reshape_extrusion(mi, width, height);
glViewport( 0, 0, width, height );
glEnable(GL_DEPTH_TEST);
glClearColor(0,0,0,0);
-/* glCullFace(GL_BACK); */
-/* glEnable(GL_CULL_FACE); */
+ glDisable (GL_CULL_FACE);
+ glLightModeli (GL_LIGHT_MODEL_TWO_SIDE, True);
glShadeModel(GL_SMOOTH);
if (do_light)
SetupLight();
- if (do_wire) {
+ if (MI_IS_WIREFRAME(mi)) {
glPolygonMode(GL_FRONT,GL_LINE);
glPolygonMode(GL_BACK,GL_LINE);
}
}
-/* xscreensaver initialization routine */
-void init_screensaver(ModeInfo * mi)
+ENTRYPOINT Bool
+extrusion_handle_event (ModeInfo *mi, XEvent *event)
+{
+ extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
+
+ if (event->xany.type == ButtonPress &&
+ (event->xbutton.button == Button4 ||
+ event->xbutton.button == Button5 ||
+ event->xbutton.button == Button6 ||
+ event->xbutton.button == Button7))
+ {
+ gltrackball_mousewheel (gp->trackball, event->xbutton.button, 10,
+ !!event->xbutton.state);
+ return True;
+ }
+ else if (event->xany.type == ButtonPress && /* rotate with left button */
+ !event->xbutton.state) /* if no modifier keys */
+ {
+ gp->button_down_p = True;
+ gltrackball_start (gp->trackball,
+ event->xbutton.x, event->xbutton.y,
+ MI_WIDTH (mi), MI_HEIGHT (mi));
+ return True;
+ }
+ else if (event->xany.type == ButtonPress) /* deform with other buttons */
+ { /* or with modifier keys */
+ gp->button2_down_p = True;
+ gp->mouse_start_x = gp->mouse_x = event->xbutton.x;
+ gp->mouse_start_y = gp->mouse_y = event->xbutton.y;
+ return True;
+ }
+ else if (event->xany.type == ButtonRelease)
+ {
+ gp->button_down_p = False;
+ gp->button2_down_p = False;
+ return True;
+ }
+ else if (event->xany.type == MotionNotify)
+ {
+ if (gp->button_down_p)
+ gltrackball_track (gp->trackball,
+ event->xmotion.x, event->xmotion.y,
+ MI_WIDTH (mi), MI_HEIGHT (mi));
+ if (gp->button2_down_p)
+ {
+ gp->mouse_x = event->xmotion.x;
+ gp->mouse_y = event->xmotion.y;
+ }
+ return True;
+ }
+
+ return False;
+}
+
+
+/* xextrusion initialization routine */
+ENTRYPOINT void
+init_extrusion (ModeInfo * mi)
{
int screen = MI_SCREEN(mi);
- screensaverstruct *gp;
+ extrusionstruct *gp;
- if (Screensaver == NULL) {
- if ((Screensaver = (screensaverstruct *) calloc(MI_NUM_SCREENS(mi), sizeof (screensaverstruct))) == NULL)
+ if (MI_IS_WIREFRAME(mi)) do_light = 0;
+
+ if (Extrusion == NULL) {
+ if ((Extrusion = (extrusionstruct *)
+ calloc(MI_NUM_SCREENS(mi), sizeof (extrusionstruct))) == NULL)
return;
}
- gp = &Screensaver[screen];
+ gp = &Extrusion[screen];
gp->window = MI_WINDOW(mi);
if ((gp->glx_context = init_GL(mi)) != NULL) {
- reshape_screensaver(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
+ reshape_extrusion(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
initializeGL(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
- chooseScreensaverExample();
+ chooseExtrusionExample(mi);
} else {
MI_CLEARWINDOW(mi);
}
}
-/* all sorts of nice cleanup code should go here! */
-void release_screensaver(ModeInfo * mi)
-{
- int screen;
- if (Screensaver != NULL) {
- for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++) {
- /* screensaverstruct *gp = &Screensaver[screen];*/
- }
- (void) free((void *) Screensaver);
- Screensaver = NULL;
- }
- FreeAllGL(mi);
-}
-#endif
+XSCREENSAVER_MODULE ("Extrusion", extrusion)
+#endif /* USE_GL */
projects / xscreensaver / blobdiff