--- /dev/null
+/* xscreensaver, Copyright (c) 1991-2016 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
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation. No representations are made about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ */
+
+#ifndef __JWXYZ_I_H__
+#define __JWXYZ_I_H__
+
+#include <inttypes.h>
+
+#include "jwxyz.h"
+
+#define Assert(C, ...) do { if (!(C)) jwxyz_abort (__VA_ARGS__); } while(0)
+
+/* OSX/jwxyz.m, utils/jwxyz-gl.c */
+extern Display *jwxyz_make_display (Window w);
+extern void jwxyz_free_display (Display *);
+extern void jwxyz_window_resized (Display *);
+extern uint32_t jwxyz_alloc_color (Display *dpy, uint16_t r, uint16_t g,
+ uint16_t b, uint16_t a);
+extern void jwxyz_query_color (Display *dpy, unsigned long pixel,
+ uint8_t *rgba);
+extern unsigned long jwxyz_window_background (Display *);
+extern int jwxyz_draw_arc (Display *dpy, Drawable d, GC gc, int x, int y,
+ unsigned int width, unsigned int height,
+ int angle1, int angle2, Bool fill_p);
+extern void jwxyz_fill_rects (Display *dpy, Drawable d, GC gc,
+ const XRectangle *rectangles,
+ unsigned long nrects,
+ unsigned long pixel);
+extern XGCValues *jwxyz_gc_gcv (GC gc);
+extern unsigned int jwxyz_gc_depth (GC gc);
+
+/* OSX/jwxyz-cocoa.m, android/jwxyz-android.c */
+extern const XRectangle *jwxyz_frame (Drawable d); /* XGetGeometry sux. */
+extern unsigned int jwxyz_drawable_depth (Drawable d);
+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,
+ unsigned int width, unsigned int height,
+ int dst_x, int dst_y);
+#ifndef current_device_rotation
+extern double current_device_rotation (void);
+extern Bool ignore_rotation_p (Display *);
+#endif
+
+/* utils/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,
+ int x, int y,
+ unsigned width, unsigned height);
+extern void jwxyz_fill_rect (Display *, Drawable, GC,
+ int x, int y,
+ unsigned int width, unsigned int height,
+ unsigned long pixel);
+extern void jwxyz_gcv_defaults (Display *dpy, XGCValues *gcv, int depth);
+
+# if defined JWXYZ_QUARTZ
+
+# include <CoreGraphics/CGGeometry.h>
+# include <CoreGraphics/CGContext.h>
+
+extern void jwxyz_flush_context (Display *);
+
+# define jwxyz_assert_display(dpy)
+# define jwxyz_assert_drawable(main_window, d)
+# define jwxyz_assert_gl()
+
+/* jwxyz-cocoa.m needs these from jwxyz.m for XCopyArea. */
+extern void invalidate_drawable_cache (Drawable d);
+extern void set_color (Display *dpy, CGContextRef cgc, unsigned long argb,
+ unsigned int depth, Bool alpha_allowed_p, Bool fill_p);
+extern void push_gc (Drawable d, GC gc);
+extern void push_color_gc (Display *dpy, Drawable d, GC gc,
+ unsigned long color,
+ Bool antialias_p, Bool fill_p);
+extern CGPoint map_point (Drawable d, int x, int y);
+
+#define seek_xy(dst, dst_pitch, x, y) \
+ ((void *)((char *)dst + dst_pitch * y + x * 4))
+
+#define pop_gc(d,gc) CGContextRestoreGState (d->cgc)
+
+# elif defined JWXYZ_GL
+
+/* utils/jwxyz-gl.c */
+extern void jwxyz_prepare_context (Display *dpy);
+extern void jwxyz_set_matrices (Display *dpy, unsigned width, unsigned height,
+ Bool screen_p);
+
+/* Only works if both drawables share OpenGL objects. OpenGL context sharing
+ works on OS X, iOS, and some (but not all!) EGL implementations. This would
+ 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,
+ 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.
+ */
+extern void jwxyz_gl_copy_area_read_pixels (Display *dpy, Drawable src,
+ Drawable dst, GC gc,
+ int src_x, int src_y,
+ unsigned int width,
+ unsigned int height,
+ int dst_x, int dst_y);
+
+/* Platform-specific */
+extern void jwxyz_bind_drawable (Display *dpy, Window w, Drawable d);
+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
projects / xscreensaver / blobdiff