From http://www.jwz.org/xscreensaver/xscreensaver-5.39.tar.gz

[xscreensaver] / hacks / glx / carousel.c

diff --git a/hacks/glx/carousel.c b/hacks/glx/carousel.c
index f81bcf540bb7ca56aaefa0381f38091a418910b8..863b1a5b16b9600bba0e0f91065a04007a35773f 100644 (file)
--- a/hacks/glx/carousel.c
+++ b/hacks/glx/carousel.c
@@ -1,4 +1,4 @@
-/* carousel, Copyright (c) 2005-2015 Jamie Zawinski <jwz@jwz.org>
+/* carousel, Copyright (c) 2005-2018 Jamie Zawinski <jwz@jwz.org>
  * Loads a sequence of images and rotates them around.
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
@@ -12,7 +12,16 @@
  * Created: 21-Feb-2005
  */
 
-#define DEF_FONT "-*-helvetica-bold-r-normal-*-*-240-*-*-*-*-*-*"
+#if defined(HAVE_COCOA) || defined(HAVE_ANDROID)
+# define DEF_FONT "OCR A Std 48, Lucida Console 48, Monaco 48"
+#elif 0  /* real X11, XQueryFont() */
+# define DEF_FONT "-*-helvetica-bold-r-normal-*-*-480-*-*-*-*-*-*"
+#else    /* real X11, load_font_retry() */
+# define DEF_FONT "-*-ocr a std-medium-r-*-*-*-480-*-*-m-*-*-*"
+#endif
+
+#define DEF_TITLE_FONT "-*-helvetica-bold-r-normal-*-*-480-*-*-*-*-*-*"
+
 #define DEFAULTS  "*count:           7         \n" \
                  "*delay:           10000     \n" \
                  "*wireframe:       False     \n" \
@@ -20,11 +29,12 @@
                  "*fpsSolid:        True      \n" \
                  "*useSHM:          True      \n" \
                  "*font:          " DEF_FONT "\n" \
+                 "*titleFont:     " DEF_TITLE_FONT "\n" \
                   "*desktopGrabber:  xscreensaver-getimage -no-desktop %s\n" \
                  "*grabDesktopImages:   False \n" \
                  "*chooseRandomImages:  True  \n"
 
-# define refresh_carousel 0
+# define free_carousel 0
 # define release_carousel 0
 # include "xlockmore.h"
 
@@ -101,7 +111,7 @@ typedef struct {
   Bool awaiting_first_images_p;
   int loads_in_progress;
 
-  texture_font_data *texfont;
+  texture_font_data *texfont, *titlefont;
 
   fade_mode mode;
   int mode_tick;
@@ -232,6 +242,11 @@ load_image (ModeInfo *mi, image_frame *frame)
       int h = (MI_HEIGHT(mi) / 2) - 1;
       if (w <= 10) w = 10;
       if (h <= 10) h = 10;
+
+      if (w > h * 5) {   /* tiny window: use 16:9 boxes */
+        h = w * 9/16;
+      }
+
       load_texture_async (mi->xgwa.screen, mi->window, *ss->glx_context, w, h,
                           mipmap_p, frame->loading.texid, 
                           image_loaded_cb, frame);
@@ -399,8 +414,15 @@ ENTRYPOINT void
 reshape_carousel (ModeInfo *mi, int width, int height)
 {
   GLfloat h = (GLfloat) height / (GLfloat) width;
+  int y = 0;
 
-  glViewport (0, 0, (GLint) width, (GLint) height);
+  if (width > height * 5) {   /* tiny window: show middle */
+    height = width * 9/16;
+    y = -height/2;
+    h = height / (GLfloat) width;
+  }
+
+  glViewport (0, y, (GLint) width, (GLint) height);
 
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
@@ -498,7 +520,7 @@ loading_msg (ModeInfo *mi, int n)
     {
       /* only do this once, so that the string doesn't move. */
       XCharStruct e;
-      texture_string_metrics (ss->texfont, text, &e, 0, 0);
+      texture_string_metrics (ss->titlefont, text, &e, 0, 0);
       ss->loading_sw = e.width;
       ss->loading_sh = e.ascent + e.descent;
     }
@@ -542,7 +564,7 @@ loading_msg (ModeInfo *mi, int n)
   glColor3f (1, 1, 0);
   glEnable (GL_TEXTURE_2D);
   glDisable (GL_DEPTH_TEST);
-  print_texture_string (ss->texfont, text);
+  print_texture_string (ss->titlefont, text);
   glEnable (GL_DEPTH_TEST);
   glPopMatrix();
 
@@ -563,11 +585,7 @@ init_carousel (ModeInfo *mi)
   carousel_state *ss;
   int wire = MI_IS_WIREFRAME(mi);
   
-  if (sss == NULL) {
-    if ((sss = (carousel_state *)
-         calloc (MI_NUM_SCREENS(mi), sizeof(carousel_state))) == NULL)
-      return;
-  }
+  MI_INIT (mi, sss);
   ss = &sss[screen];
 
   if ((ss->glx_context = init_GL(mi)) != NULL) {
@@ -635,6 +653,7 @@ init_carousel (ModeInfo *mi)
     }
 
   ss->texfont = load_texture_font (MI_DISPLAY(mi), "font");
+  ss->titlefont = load_texture_font (MI_DISPLAY(mi), "titleFont");
 
   if (debug_p)
     hack_resources (MI_DISPLAY (mi));