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/cvs/rxvt-unicode/src/rxvtimg.h
Revision: 1.46
Committed: Fri Aug 10 20:07:10 2012 UTC (11 years, 9 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.45: +1 -1 lines
Log Message: 
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File Contents

# User Rev Content
1 root 1.41 /*----------------------------------------------------------------------*
2 sf-exg 1.42 * File: rxvtimg.h
3 root 1.41 *----------------------------------------------------------------------*
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    
24     #ifndef IMG_H
25 root 1.1 #define IMG_H
26    
27 sf-exg 1.29 #if HAVE_BG_PIXMAP
28 root 1.1 #define HAVE_IMG 1
29     #endif
30    
31     #if HAVE_IMG
32    
33 root 1.28 #define float_to_component(d) (int32_t)((d) * 65535.99)
34 sf-exg 1.16
35 root 1.1 #include <X11/extensions/Xrender.h>
36    
37 root 1.39 struct rxvt_img
38 root 1.1 {
39 root 1.36 typedef double nv;
40    
41 root 1.19 // *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    
54 root 1.1 rxvt_screen *s;
55     Pixmap pm;
56 root 1.19 pixref *ref; // shared refcnt
57 root 1.15 int x, y, w, h, repeat;
58 root 1.1 XRenderPictFormat *format;
59    
60 root 1.21 rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat = RepeatNormal);
61 root 1.17 rxvt_img (const rxvt_img &img);
62 root 1.30 void alloc ();
63 root 1.17
64 sf-exg 1.29 # if HAVE_PIXBUF
65 root 1.23 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 sf-exg 1.29 # endif
68 root 1.5 static rxvt_img *new_from_root (rxvt_screen *s); // get root pixmap
69 root 1.4
70 root 1.1 ~rxvt_img ();
71    
72     Pixmap steal ()
73     {
74 root 1.19 ref->ours = false;
75     return pm;
76 root 1.1 }
77    
78     // inplace
79 root 1.15 void move (int dx, int dy)
80     {
81 root 1.38 x += dx;
82     y += dy;
83 root 1.15 }
84    
85     void repeat_mode (int repeat)
86     {
87     this->repeat = repeat;
88     }
89    
90 root 1.17 void unshare (); // prepare for write
91 root 1.33 void fill (const rgba &c);
92 root 1.44 void fill (const rgba &c, int x, int y, int w, int h);
93 root 1.34 void add_alpha ();
94 root 1.26 //void linear_gradient (const XLinearGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops);
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 root 1.45
98 root 1.28 void brightness (int32_t r, int32_t g, int32_t b, int32_t a);
99     void contrast (int32_t r, int32_t g, int32_t b, int32_t a);
100 sf-exg 1.16
101 root 1.36 void brightness (nv r, nv g, nv b, nv a = 1.)
102 sf-exg 1.16 {
103     brightness (float_to_component (r),
104     float_to_component (g),
105     float_to_component (b),
106     float_to_component (a));
107     }
108    
109 root 1.36 void contrast (nv r, nv g, nv b, nv a = 1.)
110 sf-exg 1.16 {
111     contrast (float_to_component (r),
112     float_to_component (g),
113     float_to_component (b),
114     float_to_component (a));
115     }
116    
117 root 1.38 void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1.);
118 root 1.40 #if 0
119     void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1.,
120     nv px, nv py, nv qx, nv qy, nv rx, nv ry, nv sx, nv sy);
121     #endif
122 root 1.37
123 root 1.1 // copy
124 root 1.18 rxvt_img *reify (); // make x, y 0, make real width/height
125 sf-exg 1.12 rxvt_img *blur (int rh, int rv);
126 root 1.8 rxvt_img *clone ();
127 root 1.15 rxvt_img *sub_rect (int x, int y, int width, int height);
128 root 1.39 rxvt_img *transform (const nv matrix[3][3]);
129 root 1.1 rxvt_img *scale (int new_width, int new_height);
130 root 1.36 rxvt_img *rotate (int cx, int cy, nv phi);
131 root 1.33 rxvt_img *convert_format (XRenderPictFormat *format, const rgba &bg);
132 root 1.43 rxvt_img *tint (const rgba &c);
133     rxvt_img *filter (const char *name, int nparams = 0, nv *params = 0);
134 root 1.46 rxvt_img *muladd (nv mul, nv add); // general multiply and add, implemented as the biggest hack ever :/
135 root 1.27
136     // egregiuous helper category
137     rxvt_img *replace (rxvt_img *&p)
138     {
139     delete p;
140     p = this;
141     return this;
142     }
143 root 1.39
144 root 1.43 /* these are considered private */
145 root 1.39 void destroy ();
146 root 1.43 rxvt_img *new_empty ();
147 root 1.39 Picture picture ();
148     rxvt_img *transform (const nv *matrix);
149 root 1.1 };
150    
151     #endif
152    
153     #endif
154