From http://www.jwz.org/xscreensaver/xscreensaver-5.37.tar.gz

[xscreensaver] / hacks / glx / glsnake.c

diff --git a/hacks/glx/glsnake.c b/hacks/glx/glsnake.c
index f2a0b5ff2c094286ef7843125b4ba48b22d6a1f9..1d8ef965a10a73c398d5125e300d8ebd0d5cec13 100644 (file)
--- a/hacks/glx/glsnake.c
+++ b/hacks/glx/glsnake.c
@@ -23,24 +23,29 @@
 # include "config.h"
 #endif
 
-#ifdef STANDALONE
-# include "xlockmoreI.h"
-#endif
-
 /* HAVE_GLUT defined if we're building a standalone glsnake,
  * and not defined if we're building as an xscreensaver hack */
 #ifdef HAVE_GLUT
 # include <GL/glut.h>
 #else
-# ifdef HAVE_COCOA
-#  include <OpenGL/gl.h>
-#  include <OpenGL/glu.h>
+# ifdef HAVE_JWXYZ
 #  define HAVE_GETTIMEOFDAY
 # else
 #  include <GL/gl.h>
 #  include <GL/glu.h>
 # endif
 #endif
+# ifdef HAVE_ANDROID
+# include <GLES/gl.h>
+#endif
+
+#ifdef HAVE_JWZGLES
+# include "jwzgles.h"
+#endif /* HAVE_JWZGLES */
+
+#ifdef STANDALONE
+# include "xlockmoreI.h"
+#endif
 
 #include <stdio.h>
 #include <stddef.h>
@@ -147,15 +152,15 @@ static GLfloat angvel;
 #define DEFAULTS "*delay:          30000                      \n" \
                  "*count:          30                         \n" \
                  "*showFPS:        False                      \n" \
-                 "*labelfont:   -*-helvetica-medium-r-normal-*-180-*\n" \
-
+               "*suppressRotationAnimation: True\n" \
+         "*labelfont:   -*-helvetica-medium-r-normal-*-*-180-*-*-*-*-*-*\n" \
 
 
 #undef countof
 #define countof(x) (sizeof((x))/sizeof((*x)))
 
 #include "xlockmore.h"
-#include "glxfonts.h"
+#include "texfont.h"
 
 static XrmOptionDescRec opts[] = {
     { "-explode", ".explode", XrmoptionSepArg, DEF_EXPLODE },
@@ -199,8 +204,7 @@ struct model_s {
 struct glsnake_cfg {
 #ifndef HAVE_GLUT
     GLXContext * glx_context;
-    XFontStruct * font;
-    GLuint font_list;
+    texture_font_data *font_data;
 #else
     /* font list number */
     int font;
@@ -249,6 +253,7 @@ struct glsnake_cfg {
 
     /* the id of the display lists for drawing a node */
     GLuint node_solid, node_wire;
+    int node_polys;
 
     /* is the window fullscreen? */
     int fullscreen;
@@ -1456,13 +1461,7 @@ ModeInfo * mi
     struct glsnake_cfg * bp;
 
     /* set up the conf struct and glx contexts */
-    if (!glc) {
-       glc = (struct glsnake_cfg *) calloc(MI_NUM_SCREENS(mi), sizeof(struct glsnake_cfg));
-       if (!glc) {
-           fprintf(stderr, "%s: out of memory\n", progname);
-           exit(1);
-       }
-    }
+    MI_INIT(mi, glc, NULL);
     bp = &glc[MI_SCREEN(mi)];
 
     if ((bp->glx_context = init_GL(mi)) != NULL) {
@@ -1495,7 +1494,7 @@ ModeInfo * mi
     /* set up a font for the labels */
 #ifndef HAVE_GLUT
     if (titles)
-       load_font(mi->dpy, "labelfont", &bp->font, &bp->font_list);
+        bp->font_data = load_texture_font (mi->dpy, "labelfont");
 #endif
     
     /* build a solid display list */
@@ -1507,32 +1506,39 @@ ModeInfo * mi
     glVertex3fv(solid_prism_v[0]);
     glVertex3fv(solid_prism_v[2]);
     glVertex3fv(solid_prism_v[1]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[1]);
     glVertex3fv(solid_prism_v[6]);
     glVertex3fv(solid_prism_v[7]);
     glVertex3fv(solid_prism_v[8]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[2]);
     glVertex3fv(solid_prism_v[12]);
     glVertex3fv(solid_prism_v[13]);
     glVertex3fv(solid_prism_v[14]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[3]);
     glVertex3fv(solid_prism_v[3]);
     glVertex3fv(solid_prism_v[4]);
     glVertex3fv(solid_prism_v[5]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[4]);
     glVertex3fv(solid_prism_v[9]);
     glVertex3fv(solid_prism_v[11]);
     glVertex3fv(solid_prism_v[10]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[5]);
     glVertex3fv(solid_prism_v[16]);
     glVertex3fv(solid_prism_v[15]);
     glVertex3fv(solid_prism_v[17]);
+    bp->node_polys++;
     glEnd();
+
     /* edges */
     glBegin(GL_QUADS);
     glNormal3fv(solid_prism_n[6]);
@@ -1540,54 +1546,63 @@ ModeInfo * mi
     glVertex3fv(solid_prism_v[12]);
     glVertex3fv(solid_prism_v[14]);
     glVertex3fv(solid_prism_v[2]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[7]);
     glVertex3fv(solid_prism_v[0]);
     glVertex3fv(solid_prism_v[1]);
     glVertex3fv(solid_prism_v[7]);
     glVertex3fv(solid_prism_v[6]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[8]);
     glVertex3fv(solid_prism_v[6]);
     glVertex3fv(solid_prism_v[8]);
     glVertex3fv(solid_prism_v[13]);
     glVertex3fv(solid_prism_v[12]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[9]);
     glVertex3fv(solid_prism_v[3]);
     glVertex3fv(solid_prism_v[5]);
     glVertex3fv(solid_prism_v[17]);
     glVertex3fv(solid_prism_v[15]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[10]);
     glVertex3fv(solid_prism_v[3]);
     glVertex3fv(solid_prism_v[9]);
     glVertex3fv(solid_prism_v[10]);
     glVertex3fv(solid_prism_v[4]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[11]);
     glVertex3fv(solid_prism_v[15]);
     glVertex3fv(solid_prism_v[16]);
     glVertex3fv(solid_prism_v[11]);
     glVertex3fv(solid_prism_v[9]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[12]);
     glVertex3fv(solid_prism_v[1]);
     glVertex3fv(solid_prism_v[2]);
     glVertex3fv(solid_prism_v[5]);
     glVertex3fv(solid_prism_v[4]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[13]);
     glVertex3fv(solid_prism_v[8]);
     glVertex3fv(solid_prism_v[7]);
     glVertex3fv(solid_prism_v[10]);
     glVertex3fv(solid_prism_v[11]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[14]);
     glVertex3fv(solid_prism_v[13]);
     glVertex3fv(solid_prism_v[16]);
     glVertex3fv(solid_prism_v[17]);
     glVertex3fv(solid_prism_v[14]);
+    bp->node_polys++;
     glEnd();
     
     /* faces */
@@ -1596,11 +1611,13 @@ ModeInfo * mi
     glVertex3fv(solid_prism_v[0]);
     glVertex3fv(solid_prism_v[6]);
     glVertex3fv(solid_prism_v[12]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[19]);
     glVertex3fv(solid_prism_v[3]);
     glVertex3fv(solid_prism_v[15]);
     glVertex3fv(solid_prism_v[9]);
+    bp->node_polys++;
     glEnd();
     
     glBegin(GL_QUADS);
@@ -1609,18 +1626,21 @@ ModeInfo * mi
     glVertex3fv(solid_prism_v[4]);
     glVertex3fv(solid_prism_v[10]);
     glVertex3fv(solid_prism_v[7]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[17]);
     glVertex3fv(solid_prism_v[8]);
     glVertex3fv(solid_prism_v[11]);
     glVertex3fv(solid_prism_v[16]);
     glVertex3fv(solid_prism_v[13]);
+    bp->node_polys++;
     
     glNormal3fv(solid_prism_n[18]);
     glVertex3fv(solid_prism_v[2]);
     glVertex3fv(solid_prism_v[14]);
     glVertex3fv(solid_prism_v[17]);
     glVertex3fv(solid_prism_v[5]);
+    bp->node_polys++;
     glEnd();
     glEndList();
     
@@ -1630,18 +1650,24 @@ ModeInfo * mi
     glBegin(GL_LINE_STRIP);
     glVertex3fv(wire_prism_v[0]);
     glVertex3fv(wire_prism_v[1]);
+    bp->node_polys++;
     glVertex3fv(wire_prism_v[2]);
     glVertex3fv(wire_prism_v[0]);
+    bp->node_polys++;
     glVertex3fv(wire_prism_v[3]);
     glVertex3fv(wire_prism_v[4]);
+    bp->node_polys++;
     glVertex3fv(wire_prism_v[5]);
     glVertex3fv(wire_prism_v[3]);
+    bp->node_polys++;
     glEnd();
     glBegin(GL_LINES);
     glVertex3fv(wire_prism_v[1]);
     glVertex3fv(wire_prism_v[4]);
+    bp->node_polys++;
     glVertex3fv(wire_prism_v[2]);
     glVertex3fv(wire_prism_v[5]);
+    bp->node_polys++;
     glEnd();
     glEndList();
     
@@ -1662,7 +1688,8 @@ static void draw_title(
 #endif
 
     /* draw some text */
-    glPushAttrib((GLbitfield) GL_TRANSFORM_BIT | GL_ENABLE_BIT);
+
+/*    glPushAttrib((GLbitfield) GL_TRANSFORM_BIT | GL_ENABLE_BIT);*/
     glDisable(GL_LIGHTING);
     glDisable(GL_DEPTH_TEST);
     if (transparent) {
@@ -1675,9 +1702,9 @@ static void draw_title(
     glPushMatrix();
     glLoadIdentity();
 #ifdef HAVE_GLUT
-    gluOrtho2D((GLdouble) 0., (GLdouble) bp->width, (GLdouble) 0., (GLdouble) bp->height);
+    glOrtho((GLdouble) 0., (GLdouble) bp->width, (GLdouble) 0., (GLdouble) bp->height, -1, 1);
 #else
-    gluOrtho2D((GLdouble) 0., (GLdouble) mi->xgwa.width, (GLdouble) 0., (GLdouble) mi->xgwa.height);
+    glOrtho((GLdouble) 0., (GLdouble) mi->xgwa.width, (GLdouble) 0., (GLdouble) mi->xgwa.height, -1, 1);
 #endif
 
     glColor4f(1.0, 1.0, 1.0, 1.0);
@@ -1703,16 +1730,17 @@ static void draw_title(
                glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, s[i++]);
        }
 #else
-       print_gl_string(mi->dpy, bp->font, bp->font_list,
-                       mi->xgwa.width, mi->xgwa.height,
-                       10.0, (float) mi->xgwa.height - 10.0,
-                       s, False);
+       print_texture_label (mi->dpy, bp->font_data,
+                             mi->xgwa.width, mi->xgwa.height,
+                             1, s);
 #endif
     }
     glPopMatrix();
     glMatrixMode(GL_PROJECTION);
     glPopMatrix();
-    glPopAttrib();
+
+
+/*    glPopAttrib();*/
 }
 
 /* apply the matrix to the origin and stick it in vec */
@@ -2142,6 +2170,8 @@ ENTRYPOINT void glsnake_display(
     glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(bp->glx_context));
 #endif
     
+    gl_init(mi);
+
     /* clear the buffer */
     glClear((GLbitfield) GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
     
@@ -2231,7 +2261,17 @@ ENTRYPOINT void glsnake_display(
     glRotatef(yspin, 0.0, 1.0, 0.0); 
     glRotatef(zspin, 0.0, 0.0, 1.0); 
 
+# ifdef HAVE_MOBILE    /* Keep it the same relative size when rotated. */
+    {
+      GLfloat h = MI_HEIGHT(mi) / (GLfloat) MI_WIDTH(mi);
+      int o = (int) current_device_rotation();
+      if (o != 0 && o != 180 && o != -180)
+        glScalef (1/h, 1/h, 1/h);
+    }
+# endif
+
     /* now draw each node along the snake -- this is quite ugly :p */
+    mi->polygon_count = 0;
     for (i = 0; i < NODE_COUNT; i++) {
        /* choose a colour for this node */
        if ((i == bp->selected || i == bp->selected+1) && interactive)
@@ -2249,6 +2289,7 @@ ENTRYPOINT void glsnake_display(
            glCallList(bp->node_wire);
        else
            glCallList(bp->node_solid);
+        mi->polygon_count += bp->node_polys;
 
        /* now work out where to draw the next one */
        
@@ -2273,6 +2314,7 @@ ENTRYPOINT void glsnake_display(
 
 #ifndef HAVE_GLUT
        glsnake_idle(bp);
+        if (mi->fps_p) do_fps(mi);
 #endif
     
     glFlush();