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

[xscreensaver] / jwxyz / jwxyzI.h

diff --git a/jwxyz/jwxyzI.h b/jwxyz/jwxyzI.h
index 61b654f37eee6a8b0857984599664f0ad4ab97aa..f82d6148a857a816bf688cbbc7fe4656cddd1bb4 100644 (file)
--- a/jwxyz/jwxyzI.h
+++ b/jwxyz/jwxyzI.h
@@ -18,7 +18,20 @@
 
 #define Assert(C, ...) do { if (!(C)) jwxyz_abort (__VA_ARGS__); } while(0)
 
-/* OSX/jwxyz.m, utils/jwxyz-gl.c */
+#undef MAX
+#undef MIN
+#define MAX(a,b) ((a)>(b)?(a):(b))
+#define MIN(a,b) ((a)<(b)?(a):(b))
+
+#define JWXYZ_FONT_FAMILY       0 /* i.e. -[NSFont familyName] via XLFD */
+#define JWXYZ_FONT_FACE         1 /*      -[NSFont fontName]   via native */
+#define JWXYZ_FONT_RANDOM       2
+
+#define JWXYZ_STYLE_BOLD        1
+#define JWXYZ_STYLE_ITALIC      2
+#define JWXYZ_STYLE_MONOSPACE   4
+
+/* jwxyz.m, jwxyz-gl.c */
 extern Display *jwxyz_make_display (Window w);
 extern void jwxyz_free_display (Display *);
 extern void jwxyz_window_resized (Display *);
@@ -36,10 +49,30 @@ extern void jwxyz_fill_rects (Display *dpy, Drawable d, GC gc,
                               unsigned long pixel);
 extern XGCValues *jwxyz_gc_gcv (GC gc);
 extern unsigned int jwxyz_gc_depth (GC gc);
+extern int jwxyz_draw_string (Display *dpy, Drawable d, GC gc, int x, int y,
+                              const char *str, size_t len, Bool utf8);
 
-/* OSX/jwxyz-cocoa.m, android/jwxyz-android.c */
+/* jwxyz-cocoa.m, jwxyz-android.c */
 extern const XRectangle *jwxyz_frame (Drawable d); /* XGetGeometry sux. */
 extern unsigned int jwxyz_drawable_depth (Drawable d);
+
+/* 'scale' is pixels per point, with 72 points per inch. This matches the
+   meaning of -[UIView contentScaleFactor] on iOS.
+ */
+extern float jwxyz_scale (Window main_window);
+
+extern const char *jwxyz_default_font_family (int require);
+extern void *jwxyz_load_native_font (Window main_window,
+                                     int traits_jwxyz, int mask_jwxyz,
+                                     const char *font_name_ptr,
+                                     size_t font_name_length,
+                                     int font_name_type, float size,
+                                     char **family_name_ret,
+                                     int *ascent_ret, int *descent_ret);
+extern void jwxyz_release_native_font (Display *, void *native_font);
+extern void jwxyz_render_text (Display *, void *native_font,
+                               const char *str, size_t len, int utf8_p,
+                               XCharStruct *cs_ret, char **pixmap_ret);
 extern void jwxyz_get_pos (Window w, XPoint *vpos, XPoint *p);
 extern void jwxyz_copy_area (Display *dpy, Drawable src, Drawable dst, GC gc,
                              int src_x, int src_y,
@@ -50,7 +83,7 @@ extern double current_device_rotation (void);
 extern Bool ignore_rotation_p (Display *);
 #endif
 
-/* utils/jwxyz-common.c */
+/* jwxyz-common.c */
 extern void jwxyz_validate_pixel (Display *dpy, unsigned long pixel,
                                   unsigned int depth, Bool alpha_allowed_p);
 extern Bool jwxyz_dumb_drawing_mode(Display *dpy, Drawable d, GC gc,
@@ -61,6 +94,7 @@ extern void jwxyz_fill_rect (Display *, Drawable, GC,
                              unsigned int width, unsigned int height,
                              unsigned long pixel);
 extern void jwxyz_gcv_defaults (Display *dpy, XGCValues *gcv, int depth);
+extern void *jwxyz_native_font (Font f);
 
 # if defined JWXYZ_QUARTZ
 
@@ -90,6 +124,16 @@ extern CGPoint map_point (Drawable d, int x, int y);
 
 # elif defined JWXYZ_GL
 
+#  if defined(USE_IPHONE)
+#   include <OpenGLES/ES1/gl.h>
+#  elif defined(HAVE_COCOA)
+#   include <OpenGL/gl.h>
+#  elif defined(HAVE_ANDROID)
+#   include <GLES/gl.h>
+#  else
+#   include <GL/gl.h>
+#  endif
+
 /* utils/jwxyz-gl.c */
 extern void jwxyz_prepare_context (Display *dpy);
 extern void jwxyz_set_matrices (Display *dpy, unsigned width, unsigned height,
@@ -100,12 +144,22 @@ extern void jwxyz_set_matrices (Display *dpy, unsigned width, unsigned height,
    also work with FBOs and one context for everything. Surprisingly slow and
    unreliable.
  */
-extern void jwxyz_gl_copy_area_copy_tex_image (Display *dpy, Drawable src,
-                                               Drawable dst, GC gc,
+extern void jwxyz_gl_copy_area_read_tex_image (Display *dpy,
+                                               unsigned src_height,
                                                int src_x, int src_y,
                                                unsigned int width,
                                                unsigned int height,
                                                int dst_x, int dst_y);
+extern void jwxyz_gl_copy_area_write_tex_image (Display *dpy, GC gc,
+                                                int src_x, int src_y,
+                                                unsigned int width,
+                                                unsigned int height,
+                                                int dst_x, int dst_y);
+extern void jwxyz_gl_draw_image (GLenum target,
+                                 unsigned int tex_w, unsigned int tex_h,
+                                 int src_x, int src_y,
+                                 unsigned int width, unsigned int height,
+                                 int dst_x, int dst_y);
 
 /* glReadPixels followed by glTexImage2D. This is terrible, so only use this
    if nothing else works.
@@ -123,14 +177,6 @@ extern void jwxyz_assert_display (Display *);
 extern void jwxyz_assert_drawable (Window main_window, Drawable d);
 extern void jwxyz_assert_gl (void);
 
-extern void *jwxyz_load_native_font (Display *, const char *name,
-                                     char **native_name_ret, float *size_ret,
-                                     int *ascent_ret, int *descent_ret);
-extern void jwxyz_release_native_font (Display *, void *native_font);
-extern void jwxyz_render_text (Display *, void *native_font,
-                               const char *str, size_t len, int utf8_p,
-                               XCharStruct *cs_ret, char **pixmap_ret);
-
 # endif /* JWXYZ_GL */
 
 #endif