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/cvs/rxvt-unicode/src/rxvtimg.h
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Comparing rxvt-unicode/src/rxvtimg.h (file contents):
Revision 1.4 by root, Sun Jun 3 16:54:04 2012 UTC vs.
Revision 1.44 by root, Mon Jul 2 02:01:41 2012 UTC

1/*----------------------------------------------------------------------*
2 * File: rxvtimg.h
3 *----------------------------------------------------------------------*
4 *
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de>
7 * Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *---------------------------------------------------------------------*/
23
1#ifndef IMG_H 24#ifndef IMG_H
2#define IMG_H 25#define IMG_H
3 26
4#if defined HAVE_BG_PIXMAP && defined BG_IMAGE_FROM_FILE && defined ENABLE_TRANSPARENCY && defined HAVE_PIXBUF 27#if HAVE_BG_PIXMAP
5 #define HAVE_IMG 1 28 #define HAVE_IMG 1
6#endif 29#endif
7 30
8#if HAVE_IMG 31#if HAVE_IMG
9 32
33#define float_to_component(d) (int32_t)((d) * 65535.99)
34
10#include <X11/extensions/Xrender.h> 35#include <X11/extensions/Xrender.h>
11 36
12struct rxvt_img 37struct rxvt_img
13{ 38{
39 typedef double nv;
40
41 // *could* also hold the Pixmap itself
42 struct pixref
43 {
44 int cnt;
45 int w, h;
46 bool ours; // false if we don't own the pixmap at all
47
48 pixref (int w, int h)
49 : cnt(1), w(w), h(h), ours(true)
50 {
51 }
52 };
53
14 rxvt_screen *s; 54 rxvt_screen *s;
15 Pixmap pm; 55 Pixmap pm;
16 int w, h; 56 pixref *ref; // shared refcnt
57 int x, y, w, h, repeat;
17 XRenderPictFormat *format; 58 XRenderPictFormat *format;
18 59
19 rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height); 60 rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat = RepeatNormal);
20 rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap); 61 rxvt_img (const rxvt_img &img);
62 void alloc ();
63
64# if HAVE_PIXBUF
65 static rxvt_img *new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb); // from pixbuf
66 static rxvt_img *new_from_file (rxvt_screen *s, const char *filename); // via pixbuf
67# endif
21 rxvt_img (rxvt_screen *screen); // get root pixmap 68 static rxvt_img *new_from_root (rxvt_screen *s); // get root pixmap
22 rxvt_img (const char *filename); // from pixbuf
23 69
24 ~rxvt_img (); 70 ~rxvt_img ();
25 71
26 Pixmap steal () 72 Pixmap steal ()
27 { 73 {
28 Pixmap res = pm; 74 ref->ours = false;
29 pm = 0;
30 return res; 75 return pm;
31 } 76 }
32 77
33 // inplace 78 // inplace
79 void move (int dx, int dy)
80 {
81 x += dx;
82 y += dy;
83 }
84
85 void repeat_mode (int repeat)
86 {
87 this->repeat = repeat;
88 }
89
90 void unshare (); // prepare for write
34 void fill (const rxvt_color &c); 91 void fill (const rgba &c);
35 void blur (int rh, int rv); 92 void fill (const rgba &c, int x, int y, int w, int h);
36 void brightness (double r, double g, double b, double a = 1.); 93 void add_alpha ();
37 void contrast (double r, double g, double b, double a = 1.); 94 //void linear_gradient (const XLinearGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops);
38 void render (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y); 95 //void radial_gradient (const XRadialGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops);
96 //void conical_gradient (const XConicalGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops);
97 void brightness (int32_t r, int32_t g, int32_t b, int32_t a);
98 void contrast (int32_t r, int32_t g, int32_t b, int32_t a);
99
100 void brightness (nv r, nv g, nv b, nv a = 1.)
101 {
102 brightness (float_to_component (r),
103 float_to_component (g),
104 float_to_component (b),
105 float_to_component (a));
106 }
107
108 void contrast (nv r, nv g, nv b, nv a = 1.)
109 {
110 contrast (float_to_component (r),
111 float_to_component (g),
112 float_to_component (b),
113 float_to_component (a));
114 }
115
116 void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1.);
117#if 0
118 void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1.,
119 nv px, nv py, nv qx, nv qy, nv rx, nv ry, nv sx, nv sy);
120#endif
39 121
40 // copy 122 // copy
123 rxvt_img *reify (); // make x, y 0, make real width/height
124 rxvt_img *blur (int rh, int rv);
41 rxvt_img *copy (); 125 rxvt_img *clone ();
126 rxvt_img *sub_rect (int x, int y, int width, int height);
127 rxvt_img *transform (const nv matrix[3][3]);
42 rxvt_img *scale (int new_width, int new_height); 128 rxvt_img *scale (int new_width, int new_height);
43 rxvt_img *transform (int new_width, int new_height, double matrix[16]); 129 rxvt_img *rotate (int cx, int cy, nv phi);
130 rxvt_img *convert_format (XRenderPictFormat *format, const rgba &bg);
131 rxvt_img *tint (const rgba &c);
132 rxvt_img *filter (const char *name, int nparams = 0, nv *params = 0);
133
134 // egregiuous helper category
135 rxvt_img *replace (rxvt_img *&p)
136 {
137 delete p;
138 p = this;
139 return this;
140 }
141
142 /* these are considered private */
143 void destroy ();
144 rxvt_img *new_empty ();
145 Picture picture ();
146 rxvt_img *transform (const nv *matrix);
44}; 147};
45 148
46#endif 149#endif
47 150
48#endif 151#endif

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