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1 | /*----------------------------------------------------------------------* |
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2 | * File: rxvtimg.h |
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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_IMG |
5 | #define HAVE_IMG 1 |
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6 | #endif |
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7 | |
28 | |
8 | #if HAVE_IMG |
29 | #define float_to_component(d) (int32_t)((d) * 65535.99) |
9 | |
30 | |
10 | #include <X11/extensions/Xrender.h> |
31 | #include <X11/extensions/Xrender.h> |
11 | |
32 | |
12 | struct rxvt_img |
33 | struct rxvt_img |
13 | { |
34 | { |
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35 | typedef double nv; |
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36 | |
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37 | // *could* also hold the Pixmap itself |
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38 | struct pixref |
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39 | { |
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40 | int cnt; |
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41 | int w, h; |
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42 | bool ours; // false if we don't own the pixmap at all |
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43 | |
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44 | pixref (int w, int h) |
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45 | : cnt(1), w(w), h(h), ours(true) |
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46 | { |
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47 | } |
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48 | }; |
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49 | |
14 | rxvt_screen *s; |
50 | rxvt_screen *s; |
15 | Pixmap pm; |
51 | Pixmap pm; |
16 | int w, h; |
52 | pixref *ref; // shared refcnt |
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53 | int x, y, w, h, repeat; |
17 | XRenderPictFormat *format; |
54 | XRenderPictFormat *format; |
18 | bool shared; // true if we don't own it |
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19 | |
55 | |
20 | rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height); |
56 | rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat = RepeatNormal); |
21 | rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap); |
57 | rxvt_img (const rxvt_img &img); |
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58 | void alloc (); |
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59 | |
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60 | # if HAVE_PIXBUF |
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61 | static rxvt_img *new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb); // from pixbuf |
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62 | static rxvt_img *new_from_file (rxvt_screen *s, const char *filename); // via pixbuf |
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63 | # endif |
22 | static rxvt_img *new_from_root (rxvt_screen *s); // get root pixmap |
64 | static rxvt_img *new_from_root (rxvt_screen *s); // get root pixmap |
23 | static rxvt_img *new_from_file (rxvt_screen *s, const char *filename); // from pixbuf |
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24 | |
65 | |
25 | ~rxvt_img (); |
66 | ~rxvt_img (); |
26 | |
67 | |
27 | Pixmap steal () |
68 | Pixmap steal () |
28 | { |
69 | { |
29 | shared = true; |
70 | ref->ours = false; |
30 | return pm; |
71 | return pm; |
31 | } |
72 | } |
32 | |
73 | |
33 | // inplace |
74 | // inplace |
34 | void unshare (); // create a copy of the pixmap if !shared |
75 | void move (int dx, int dy) |
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76 | { |
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77 | x += dx; |
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78 | y += dy; |
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79 | } |
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80 | |
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81 | void repeat_mode (int repeat) |
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82 | { |
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83 | this->repeat = repeat; |
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84 | } |
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85 | |
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86 | void unshare (); // prepare for write |
35 | void fill (const rxvt_color &c); |
87 | void fill (const rgba &c); |
36 | void blur (int rh, int rv); |
88 | void fill (const rgba &c, int x, int y, int w, int h); |
37 | void brightness (double r, double g, double b, double a = 1.); |
89 | void add_alpha (); |
38 | void contrast (double r, double g, double b, double a = 1.); |
90 | //void linear_gradient (const XLinearGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
39 | bool render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y); |
91 | //void radial_gradient (const XRadialGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
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92 | //void conical_gradient (const XConicalGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
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93 | |
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94 | void brightness (int32_t r, int32_t g, int32_t b, int32_t a); |
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95 | void contrast (int32_t r, int32_t g, int32_t b, int32_t a); |
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96 | |
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97 | void brightness (nv r, nv g, nv b, nv a = 1.) |
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98 | { |
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99 | brightness (float_to_component (r), |
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100 | float_to_component (g), |
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101 | float_to_component (b), |
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102 | float_to_component (a)); |
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103 | } |
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104 | |
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105 | void contrast (nv r, nv g, nv b, nv a = 1.) |
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106 | { |
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107 | contrast (float_to_component (r), |
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108 | float_to_component (g), |
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109 | float_to_component (b), |
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110 | float_to_component (a)); |
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111 | } |
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112 | |
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113 | void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1.); |
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114 | #if 0 |
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115 | void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1., |
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116 | nv px, nv py, nv qx, nv qy, nv rx, nv ry, nv sx, nv sy); |
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117 | #endif |
40 | |
118 | |
41 | // copy |
119 | // copy |
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120 | rxvt_img *reify (); // make x, y 0, make real width/height |
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121 | rxvt_img *blur (int rh, int rv); |
42 | rxvt_img *clone (); |
122 | rxvt_img *clone (); |
43 | rxvt_img *sub_rect (int x, int y, int width, int height, int repeat = RepeatNormal); |
123 | rxvt_img *sub_rect (int x, int y, int width, int height); |
44 | rxvt_img *transform (int new_width, int new_height, double matrix[9], int repeat = RepeatNormal); |
124 | rxvt_img *transform (const nv matrix[3][3]); |
45 | rxvt_img *scale (int new_width, int new_height); |
125 | rxvt_img *scale (int new_width, int new_height); |
46 | rxvt_img *rotate (int new_width, int new_height, int x, int y, double phi, int repeat = RepeatNormal); |
126 | rxvt_img *rotate (int cx, int cy, nv phi); |
47 | rxvt_img *convert_to (XRenderPictFormat *format); |
127 | rxvt_img *convert_format (XRenderPictFormat *format, const rgba &bg); |
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128 | rxvt_img *tint (const rgba &c); |
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129 | rxvt_img *shade (nv factor, rgba c = rgba (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC)); |
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130 | rxvt_img *filter (const char *name, int nparams = 0, nv *params = 0); |
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131 | rxvt_img *muladd (nv mul, nv add); // general multiply and add, implemented as the biggest hack ever :/ |
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132 | |
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133 | // egregious helper category |
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134 | rxvt_img *replace (rxvt_img *&p) |
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135 | { |
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136 | delete p; |
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137 | p = this; |
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138 | return this; |
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139 | } |
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140 | |
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141 | /* these are considered private */ |
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142 | void destroy (); |
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143 | rxvt_img *new_empty (); |
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144 | Picture picture (); |
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145 | rxvt_img *transform (const nv *matrix); |
48 | }; |
146 | }; |
49 | |
147 | |
50 | #endif |
148 | #endif |
51 | |
149 | |
52 | #endif |
150 | #endif |