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