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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 | |
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24 | #include <string.h> |
1 | #include <math.h> |
25 | #include <math.h> |
2 | #include "../config.h" |
26 | #include "../config.h" |
3 | #include "rxvt.h" |
27 | #include "rxvt.h" |
4 | |
28 | |
5 | #if HAVE_IMG |
29 | #if HAVE_IMG |
6 | |
30 | |
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31 | typedef rxvt_img::nv nv; |
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32 | |
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33 | namespace |
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34 | { |
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35 | struct mat3x3 |
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36 | { |
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37 | nv v[3][3]; |
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38 | |
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39 | mat3x3 () |
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40 | { |
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41 | } |
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42 | |
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43 | mat3x3 (const nv *matrix) |
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44 | { |
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45 | memcpy (v, matrix, sizeof (v)); |
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46 | } |
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47 | |
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48 | mat3x3 (nv v11, nv v12, nv v13, nv v21, nv v22, nv v23, nv v31, nv v32, nv v33) |
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49 | { |
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50 | v[0][0] = v11; v[0][1] = v12; v[0][2] = v13; |
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51 | v[1][0] = v21; v[1][1] = v22; v[1][2] = v23; |
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52 | v[2][0] = v31; v[2][1] = v32; v[2][2] = v33; |
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53 | } |
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54 | |
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55 | mat3x3 inverse (); |
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56 | |
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57 | nv *operator [](int i) { return &v[i][0]; } |
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58 | const nv *operator [](int i) const { return &v[i][0]; } |
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59 | |
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60 | operator const nv * () const { return &v[0][0]; } |
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61 | operator nv * () { return &v[0][0]; } |
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62 | |
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63 | // quite inefficient, hopefully gcc pulls the w calc out of any loops |
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64 | nv apply1 (int i, nv x, nv y) |
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65 | { |
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66 | mat3x3 &m = *this; |
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67 | |
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68 | nv v = m[i][0] * x + m[i][1] * y + m[i][2]; |
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69 | nv w = m[2][0] * x + m[2][1] * y + m[2][2]; |
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70 | |
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71 | return v * (1. / w); |
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72 | } |
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73 | |
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74 | static mat3x3 translate (nv x, nv y); |
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75 | static mat3x3 scale (nv s, nv t); |
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76 | static mat3x3 rotate (nv phi); |
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77 | }; |
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78 | |
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79 | mat3x3 |
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80 | mat3x3::inverse () |
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81 | { |
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82 | mat3x3 &m = *this; |
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83 | mat3x3 inv; |
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84 | |
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85 | nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2]; |
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86 | nv s1 = m[2][1] * m[0][2] - m[2][2] * m[0][1]; |
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87 | nv s2 = m[1][2] * m[0][1] - m[1][1] * m[0][2]; |
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88 | |
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89 | nv invdet = 1. / (m[0][0] * s0 + m[1][0] * s1 + m[2][0] * s2); |
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90 | |
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91 | inv[0][0] = invdet * s0; |
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92 | inv[0][1] = invdet * s1; |
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93 | inv[0][2] = invdet * s2; |
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94 | |
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95 | inv[1][0] = invdet * (m[2][0] * m[1][2] - m[2][2] * m[1][0]); |
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96 | inv[1][1] = invdet * (m[2][2] * m[0][0] - m[2][0] * m[0][2]); |
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97 | inv[1][2] = invdet * (m[1][0] * m[0][2] - m[1][2] * m[0][0]); |
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98 | |
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99 | inv[2][0] = invdet * (m[2][1] * m[1][0] - m[2][0] * m[1][1]); |
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100 | inv[2][1] = invdet * (m[2][0] * m[0][1] - m[2][1] * m[0][0]); |
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101 | inv[2][2] = invdet * (m[1][1] * m[0][0] - m[1][0] * m[0][1]); |
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102 | |
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103 | return inv; |
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104 | } |
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105 | |
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106 | static mat3x3 |
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107 | operator *(const mat3x3 &a, const mat3x3 &b) |
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108 | { |
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109 | mat3x3 r; |
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110 | |
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111 | for (int i = 0; i < 3; ++i) |
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112 | for (int j = 0; j < 3; ++j) |
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113 | r[i][j] = a[i][0] * b[0][j] |
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114 | + a[i][1] * b[1][j] |
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115 | + a[i][2] * b[2][j]; |
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116 | |
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117 | return r; |
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118 | } |
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119 | |
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120 | mat3x3 |
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121 | mat3x3::translate (nv x, nv y) |
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122 | { |
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123 | return mat3x3 ( |
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124 | 1, 0, x, |
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125 | 0, 1, y, |
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126 | 0, 0, 1 |
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127 | ); |
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128 | } |
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129 | |
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130 | mat3x3 |
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131 | mat3x3::scale (nv s, nv t) |
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132 | { |
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133 | return mat3x3 ( |
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134 | s, 0, 0, |
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135 | 0, t, 0, |
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136 | 0, 0, 1 |
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137 | ); |
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138 | } |
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139 | |
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140 | // clockwise |
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141 | mat3x3 |
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142 | mat3x3::rotate (nv phi) |
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143 | { |
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144 | nv s = sin (phi); |
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145 | nv c = cos (phi); |
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146 | |
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147 | return mat3x3 ( |
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148 | c, -s, 0, |
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149 | s, c, 0, |
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150 | 0, 0, 1 |
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151 | ); |
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152 | } |
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153 | |
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154 | struct composer |
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155 | { |
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156 | rxvt_img *srcimg, *dstimg; |
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157 | Picture src, dst, msk; |
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158 | Display *dpy; |
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159 | |
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160 | ecb_noinline |
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161 | composer (rxvt_img *srcimg, rxvt_img *dstimg = 0) |
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162 | : srcimg (srcimg), dstimg (dstimg), msk (0) |
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163 | { |
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164 | if (!this->dstimg) |
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165 | this->dstimg = srcimg->new_empty (); |
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166 | else if (!this->dstimg->pm) // somewhat unsatisfying |
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167 | this->dstimg->alloc (); |
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168 | |
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169 | dpy = srcimg->s->dpy; |
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170 | src = srcimg->picture (); |
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171 | dst = this->dstimg->picture (); |
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172 | } |
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173 | |
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174 | ecb_noinline |
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175 | void mask (bool rgb = true, int x = 1, int y = 1) |
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176 | { |
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177 | Pixmap pixmap = XCreatePixmap (dpy, srcimg->pm, x, y, rgb ? 32 : 8); |
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178 | |
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179 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, rgb ? PictStandardARGB32 : PictStandardA8); |
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180 | XRenderPictureAttributes pa; |
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181 | pa.repeat = RepeatNormal; |
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182 | pa.component_alpha = rgb; |
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183 | msk = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
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184 | |
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185 | XFreePixmap (dpy, pixmap); |
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186 | |
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187 | ecb_assume (msk); |
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188 | } |
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189 | |
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190 | // CreateSolidFill creates a very very very weird picture |
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191 | void mask (const rgba &c) |
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192 | { |
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193 | XRenderColor rc = { |
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194 | c.r * c.a / 65535, |
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195 | c.g * c.a / 65535, |
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196 | c.b * c.a / 65535, |
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197 | c.a |
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198 | }; |
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199 | msk = XRenderCreateSolidFill (dpy, &rc); |
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200 | ecb_assume (msk); |
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201 | } |
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202 | |
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203 | void fill (const rgba &c) |
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204 | { |
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205 | XRenderColor rc = { |
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206 | c.r * c.a / 65535, |
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207 | c.g * c.a / 65535, |
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208 | c.b * c.a / 65535, |
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209 | c.a |
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210 | }; |
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211 | |
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212 | XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1); |
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213 | } |
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214 | |
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215 | operator rxvt_img *() |
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216 | { |
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217 | return dstimg; |
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218 | } |
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219 | |
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220 | ecb_noinline |
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221 | ~composer () |
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222 | { |
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223 | XRenderFreePicture (dpy, src); |
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224 | XRenderFreePicture (dpy, dst); |
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225 | if (msk) XRenderFreePicture (dpy, msk); |
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226 | } |
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227 | }; |
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228 | } |
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229 | |
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230 | static XRenderPictFormat * |
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231 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
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232 | { |
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233 | if (format->direct.alphaMask) |
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234 | return format; // already has alpha |
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235 | |
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236 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
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237 | if (format->type == PictTypeDirect) |
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238 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
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239 | if (f->direct.alphaMask |
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240 | && f->type == PictTypeDirect |
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241 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
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242 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
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243 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
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244 | return f; |
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245 | |
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246 | // should be a very good fallback |
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247 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
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248 | } |
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249 | |
7 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
250 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
8 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
251 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
9 | pm(0), ref(0) |
252 | pm(0), ref(0) |
10 | { |
253 | { |
11 | } |
254 | } |
… | |
… | |
17 | } |
260 | } |
18 | |
261 | |
19 | rxvt_img * |
262 | rxvt_img * |
20 | rxvt_img::new_from_root (rxvt_screen *s) |
263 | rxvt_img::new_from_root (rxvt_screen *s) |
21 | { |
264 | { |
22 | Display *dpy = s->display->dpy; |
265 | Display *dpy = s->dpy; |
23 | unsigned int root_pm_w, root_pm_h; |
266 | unsigned int root_pm_w, root_pm_h; |
24 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
267 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]); |
25 | if (root_pixmap == None) |
268 | if (root_pixmap == None) |
26 | root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
269 | root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]); |
27 | |
270 | |
28 | if (root_pixmap == None) |
271 | if (root_pixmap == None) |
29 | return 0; |
272 | return 0; |
30 | |
273 | |
31 | Window wdummy; |
274 | Window wdummy; |
… | |
… | |
54 | # if HAVE_PIXBUF |
297 | # if HAVE_PIXBUF |
55 | |
298 | |
56 | rxvt_img * |
299 | rxvt_img * |
57 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
300 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
58 | { |
301 | { |
59 | Display *dpy = s->display->dpy; |
302 | Display *dpy = s->dpy; |
60 | |
303 | |
61 | int width = gdk_pixbuf_get_width (pb); |
304 | int width = gdk_pixbuf_get_width (pb); |
62 | int height = gdk_pixbuf_get_height (pb); |
305 | int height = gdk_pixbuf_get_height (pb); |
63 | |
306 | |
64 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
307 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
… | |
… | |
114 | uint8_t r = *src++; |
357 | uint8_t r = *src++; |
115 | uint8_t g = *src++; |
358 | uint8_t g = *src++; |
116 | uint8_t b = *src++; |
359 | uint8_t b = *src++; |
117 | |
360 | |
118 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
361 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
119 | |
362 | |
120 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
363 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
121 | v = ecb_bswap32 (v); |
364 | v = ecb_bswap32 (v); |
122 | |
365 | |
123 | *dst++ = v; |
366 | *dst++ = v; |
124 | } |
367 | } |
… | |
… | |
177 | { |
420 | { |
178 | if (--ref->cnt) |
421 | if (--ref->cnt) |
179 | return; |
422 | return; |
180 | |
423 | |
181 | if (pm && ref->ours) |
424 | if (pm && ref->ours) |
182 | XFreePixmap (s->display->dpy, pm); |
425 | XFreePixmap (s->dpy, pm); |
183 | |
426 | |
184 | delete ref; |
427 | delete ref; |
185 | } |
428 | } |
186 | |
429 | |
187 | rxvt_img::~rxvt_img () |
430 | rxvt_img::~rxvt_img () |
… | |
… | |
190 | } |
433 | } |
191 | |
434 | |
192 | void |
435 | void |
193 | rxvt_img::alloc () |
436 | rxvt_img::alloc () |
194 | { |
437 | { |
195 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
438 | pm = XCreatePixmap (s->dpy, s->display->root, w, h, format->depth); |
196 | ref = new pixref (w, h); |
439 | ref = new pixref (w, h); |
197 | } |
440 | } |
198 | |
441 | |
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442 | rxvt_img * |
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443 | rxvt_img::new_empty () |
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444 | { |
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445 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
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446 | img->alloc (); |
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447 | |
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448 | return img; |
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449 | } |
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450 | |
199 | Picture |
451 | Picture |
200 | rxvt_img::src_picture () |
452 | rxvt_img::picture () |
201 | { |
453 | { |
202 | Display *dpy = s->display->dpy; |
454 | Display *dpy = s->dpy; |
203 | |
455 | |
204 | XRenderPictureAttributes pa; |
456 | XRenderPictureAttributes pa; |
205 | pa.repeat = repeat; |
457 | pa.repeat = repeat; |
206 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
458 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
207 | |
459 | |
… | |
… | |
212 | rxvt_img::unshare () |
464 | rxvt_img::unshare () |
213 | { |
465 | { |
214 | if (ref->cnt == 1 && ref->ours) |
466 | if (ref->cnt == 1 && ref->ours) |
215 | return; |
467 | return; |
216 | |
468 | |
217 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
469 | Pixmap pm2 = XCreatePixmap (s->dpy, s->display->root, ref->w, ref->h, format->depth); |
218 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
470 | GC gc = XCreateGC (s->dpy, pm, 0, 0); |
219 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
471 | XCopyArea (s->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
220 | XFreeGC (s->display->dpy, gc); |
472 | XFreeGC (s->dpy, gc); |
221 | |
473 | |
222 | destroy (); |
474 | destroy (); |
223 | |
475 | |
224 | pm = pm2; |
476 | pm = pm2; |
225 | ref = new pixref (ref->w, ref->h); |
477 | ref = new pixref (ref->w, ref->h); |
… | |
… | |
228 | void |
480 | void |
229 | rxvt_img::fill (const rgba &c) |
481 | rxvt_img::fill (const rgba &c) |
230 | { |
482 | { |
231 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
483 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
232 | |
484 | |
233 | Display *dpy = s->display->dpy; |
485 | Display *dpy = s->dpy; |
234 | Picture src = src_picture (); |
486 | Picture src = picture (); |
235 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
487 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
236 | XRenderFreePicture (dpy, src); |
488 | XRenderFreePicture (dpy, src); |
237 | } |
489 | } |
238 | |
490 | |
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491 | void |
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492 | rxvt_img::add_alpha () |
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493 | { |
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494 | if (format->direct.alphaMask) |
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495 | return; |
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496 | |
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497 | composer cc (this, new rxvt_img (s, find_alpha_format_for (s->dpy, format), x, y, w, h, repeat)); |
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498 | |
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499 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
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500 | |
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501 | rxvt_img *img = cc; |
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502 | |
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503 | ::swap (img->ref, ref); |
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504 | ::swap (img->pm , pm ); |
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505 | |
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506 | delete img; |
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507 | } |
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508 | |
239 | static void |
509 | static void |
240 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
510 | get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params) |
241 | { |
511 | { |
242 | double sigma = radius / 2.0; |
512 | nv sigma = radius / 2.0; |
243 | double scale = sqrt (2.0 * M_PI) * sigma; |
513 | nv scale = sqrt (2.0 * M_PI) * sigma; |
244 | double sum = 0.0; |
514 | nv sum = 0.0; |
245 | |
515 | |
246 | for (int i = 0; i < width; i++) |
516 | for (int i = 0; i < width; i++) |
247 | { |
517 | { |
248 | double x = i - width / 2; |
518 | nv x = i - width / 2; |
249 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
519 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
250 | sum += kernel[i]; |
520 | sum += kernel[i]; |
251 | } |
521 | } |
252 | |
522 | |
253 | params[0] = XDoubleToFixed (width); |
523 | params[0] = XDoubleToFixed (width); |
… | |
… | |
261 | rxvt_img::blur (int rh, int rv) |
531 | rxvt_img::blur (int rh, int rv) |
262 | { |
532 | { |
263 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
533 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
264 | return clone (); |
534 | return clone (); |
265 | |
535 | |
266 | Display *dpy = s->display->dpy; |
536 | Display *dpy = s->dpy; |
267 | int size = max (rh, rv) * 2 + 1; |
537 | int size = max (rh, rv) * 2 + 1; |
268 | double *kernel = (double *)malloc (size * sizeof (double)); |
538 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
269 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
539 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
270 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
540 | rxvt_img *img = new_empty (); |
271 | img->alloc (); |
|
|
272 | |
541 | |
273 | XRenderPictureAttributes pa; |
542 | XRenderPictureAttributes pa; |
274 | pa.repeat = RepeatPad; |
543 | pa.repeat = RepeatPad; |
275 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
544 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
276 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
545 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
… | |
… | |
319 | XRenderFreePicture (dpy, tmp); |
588 | XRenderFreePicture (dpy, tmp); |
320 | |
589 | |
321 | return img; |
590 | return img; |
322 | } |
591 | } |
323 | |
592 | |
324 | static Picture |
593 | ecb_noinline static void |
325 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
|
|
326 | { |
|
|
327 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
|
|
328 | |
|
|
329 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
|
|
330 | XRenderPictureAttributes pa; |
|
|
331 | pa.repeat = RepeatNormal; |
|
|
332 | pa.component_alpha = component_alpha; |
|
|
333 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
|
|
334 | |
|
|
335 | XFreePixmap (dpy, pixmap); |
|
|
336 | |
|
|
337 | return mask; |
|
|
338 | } |
|
|
339 | |
|
|
340 | static void |
|
|
341 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
594 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
342 | { |
595 | { |
343 | int32_t x = clamp (c, cl0, cl1); |
596 | int32_t x = clamp (c, cl0, cl1); |
344 | c -= x; |
597 | c -= x; |
345 | xc = x; |
598 | xc = x; |
346 | } |
599 | } |
347 | |
600 | |
348 | static bool |
601 | ecb_noinline static bool |
349 | extract (int32_t cl0, int32_t cl1, int32_t &r, int32_t &g, int32_t &b, int32_t &a, unsigned short &xr, unsigned short &xg, unsigned short &xb, unsigned short &xa) |
602 | extract (int32_t cl0, int32_t cl1, int32_t &r, int32_t &g, int32_t &b, int32_t &a, unsigned short &xr, unsigned short &xg, unsigned short &xb, unsigned short &xa) |
350 | { |
603 | { |
351 | extract (cl0, cl1, r, xr); |
604 | extract (cl0, cl1, r, xr); |
352 | extract (cl0, cl1, g, xg); |
605 | extract (cl0, cl1, g, xg); |
353 | extract (cl0, cl1, b, xb); |
606 | extract (cl0, cl1, b, xb); |
… | |
… | |
359 | void |
612 | void |
360 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
613 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
361 | { |
614 | { |
362 | unshare (); |
615 | unshare (); |
363 | |
616 | |
364 | Display *dpy = s->display->dpy; |
617 | Display *dpy = s->dpy; |
365 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
618 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
366 | |
619 | |
367 | // loop should not be needed for brightness, as only -1..1 makes sense |
620 | // loop should not be needed for brightness, as only -1..1 makes sense |
368 | //while (r | g | b | a) |
621 | //while (r | g | b | a) |
369 | { |
622 | { |
… | |
… | |
393 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
646 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
394 | { |
647 | { |
395 | if (r < 0 || g < 0 || b < 0 || a < 0) |
648 | if (r < 0 || g < 0 || b < 0 || a < 0) |
396 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
649 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
397 | |
650 | |
398 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
399 | img->alloc (); |
|
|
400 | img->fill (rgba (0, 0, 0, 0)); |
|
|
401 | |
|
|
402 | // premultiply (yeah, these are not exact, sue me or fix it) |
651 | // premultiply (yeah, these are not exact, sue me or fix it) |
403 | r = (r * (a >> 8)) >> 8; |
652 | r = (r * (a >> 8)) >> 8; |
404 | g = (g * (a >> 8)) >> 8; |
653 | g = (g * (a >> 8)) >> 8; |
405 | b = (b * (a >> 8)) >> 8; |
654 | b = (b * (a >> 8)) >> 8; |
406 | |
655 | |
407 | Display *dpy = s->display->dpy; |
656 | composer cc (this); |
|
|
657 | rxvt_img *img = cc; |
|
|
658 | img->fill (rgba (0, 0, 0, 0)); |
408 | |
659 | |
409 | Picture src = src_picture (); |
660 | cc.mask (true); |
410 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
411 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
|
|
412 | |
661 | |
413 | //TODO: this operator does not yet implement some useful contrast |
662 | //TODO: this operator does not yet implement some useful contrast |
414 | while (r | g | b | a) |
663 | while (r | g | b | a) |
415 | { |
664 | { |
416 | unsigned short xr, xg, xb, xa; |
665 | unsigned short xr, xg, xb, xa; |
417 | XRenderColor mask_c; |
666 | XRenderColor mask_c; |
418 | |
667 | |
419 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
668 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
420 | { |
669 | { |
421 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
670 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); |
422 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
671 | XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
423 | } |
672 | } |
424 | } |
673 | } |
425 | |
|
|
426 | XRenderFreePicture (dpy, mul); |
|
|
427 | XRenderFreePicture (dpy, dst); |
|
|
428 | XRenderFreePicture (dpy, src); |
|
|
429 | |
674 | |
430 | ::swap (img->ref, ref); |
675 | ::swap (img->ref, ref); |
431 | ::swap (img->pm , pm ); |
676 | ::swap (img->pm , pm ); |
432 | |
677 | |
433 | delete img; |
678 | delete img; |
434 | } |
679 | } |
435 | |
680 | |
|
|
681 | void |
|
|
682 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
|
|
683 | { |
|
|
684 | unshare (); |
|
|
685 | |
|
|
686 | composer cc (img, this); |
|
|
687 | |
|
|
688 | if (mask != 1.) |
|
|
689 | cc.mask (rgba (0, 0, 0, float_to_component (mask))); |
|
|
690 | |
|
|
691 | XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
|
|
692 | } |
|
|
693 | |
436 | rxvt_img * |
694 | rxvt_img * |
437 | rxvt_img::clone () |
695 | rxvt_img::clone () |
438 | { |
696 | { |
439 | return new rxvt_img (*this); |
697 | return new rxvt_img (*this); |
440 | } |
|
|
441 | |
|
|
442 | static XRenderPictFormat * |
|
|
443 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
|
|
444 | { |
|
|
445 | if (format->direct.alphaMask) |
|
|
446 | return format; // already has alpha |
|
|
447 | |
|
|
448 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
|
|
449 | if (format->type == PictTypeDirect) |
|
|
450 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
|
|
451 | if (f->direct.alphaMask |
|
|
452 | && f->type == PictTypeDirect |
|
|
453 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
|
|
454 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
|
|
455 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
|
|
456 | return f; |
|
|
457 | |
|
|
458 | // should be a very good fallback |
|
|
459 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
|
|
460 | } |
698 | } |
461 | |
699 | |
462 | rxvt_img * |
700 | rxvt_img * |
463 | rxvt_img::reify () |
701 | rxvt_img::reify () |
464 | { |
702 | { |
465 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
703 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
466 | return clone (); |
704 | return clone (); |
467 | |
705 | |
468 | Display *dpy = s->display->dpy; |
706 | Display *dpy = s->dpy; |
469 | |
707 | |
470 | // add an alpha channel if... |
708 | // add an alpha channel if... |
471 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
709 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
472 | && (x || y) // we need one because of non-zero offset |
710 | && (x || y) // we need one because of non-zero offset |
473 | && repeat == RepeatNone; // and we have no good pixels to fill with |
711 | && repeat == RepeatNone; // and we have no good pixels to fill with |
474 | |
712 | |
475 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
713 | composer cc (this, new rxvt_img (s, alpha ? find_alpha_format_for (s->dpy, format) : format, |
476 | img->alloc (); |
714 | 0, 0, w, h, repeat)); |
477 | |
715 | |
478 | Picture src = src_picture (); |
|
|
479 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
480 | |
|
|
481 | if (alpha) |
716 | if (alpha) |
482 | { |
717 | { |
483 | XRenderColor rc = { 0, 0, 0, 0 }; |
718 | XRenderColor rc = { 0, 0, 0, 0 }; |
484 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
719 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
485 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h); |
720 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
486 | } |
721 | } |
487 | else |
722 | else |
488 | XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
723 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h); |
489 | |
724 | |
490 | XRenderFreePicture (dpy, src); |
|
|
491 | XRenderFreePicture (dpy, dst); |
|
|
492 | |
|
|
493 | return img; |
725 | return cc; |
494 | } |
726 | } |
495 | |
727 | |
496 | rxvt_img * |
728 | rxvt_img * |
497 | rxvt_img::sub_rect (int x, int y, int width, int height) |
729 | rxvt_img::sub_rect (int x, int y, int width, int height) |
498 | { |
730 | { |
499 | rxvt_img *img = clone (); |
731 | rxvt_img *img = clone (); |
500 | |
732 | |
501 | img->x += x; |
733 | img->x -= x; |
502 | img->y += y; |
734 | img->y -= y; |
503 | |
735 | |
504 | if (w != width || h != height) |
736 | if (w != width || h != height) |
505 | { |
737 | { |
506 | img->w = width; |
738 | img->w = width; |
507 | img->h = height; |
739 | img->h = height; |
… | |
… | |
512 | } |
744 | } |
513 | |
745 | |
514 | return img; |
746 | return img; |
515 | } |
747 | } |
516 | |
748 | |
517 | static void |
|
|
518 | mat_invert (double mat[3][3], double (&inv)[3][3]) |
|
|
519 | { |
|
|
520 | double s0 = mat [2][2] * mat [1][1] - mat [2][1] * mat [1][2]; |
|
|
521 | double s1 = mat [2][1] * mat [0][2] - mat [2][2] * mat [0][1]; |
|
|
522 | double s2 = mat [1][2] * mat [0][1] - mat [1][1] * mat [0][2]; |
|
|
523 | |
|
|
524 | double invdet = 1. / (mat [0][0] * s0 + mat [1][0] * s1 + mat [2][0] * s2); |
|
|
525 | |
|
|
526 | inv [0][0] = invdet * s0; |
|
|
527 | inv [0][1] = invdet * s1; |
|
|
528 | inv [0][2] = invdet * s2; |
|
|
529 | |
|
|
530 | inv [1][0] = invdet * (mat [2][0] * mat [1][2] - mat [2][2] * mat [1][0]); |
|
|
531 | inv [1][1] = invdet * (mat [2][2] * mat [0][0] - mat [2][0] * mat [0][2]); |
|
|
532 | inv [1][2] = invdet * (mat [1][0] * mat [0][2] - mat [1][2] * mat [0][0]); |
|
|
533 | |
|
|
534 | inv [2][0] = invdet * (mat [2][1] * mat [1][0] - mat [2][0] * mat [1][1]); |
|
|
535 | inv [2][1] = invdet * (mat [2][0] * mat [0][1] - mat [2][1] * mat [0][0]); |
|
|
536 | inv [2][2] = invdet * (mat [1][1] * mat [0][0] - mat [1][0] * mat [0][1]); |
|
|
537 | } |
|
|
538 | |
|
|
539 | static double |
|
|
540 | mat_apply (double mat[3][3], int i, double x, double y) |
|
|
541 | { |
|
|
542 | double v = mat [i][0] * x + mat [i][1] * y + mat [i][2]; |
|
|
543 | double w = mat [2][0] * x + mat [2][1] * y + mat [2][2]; |
|
|
544 | |
|
|
545 | return v * (1. / w); |
|
|
546 | } |
|
|
547 | |
|
|
548 | rxvt_img * |
749 | rxvt_img * |
549 | rxvt_img::transform (double matrix[3][3]) |
750 | rxvt_img::transform (const nv matrix[3][3]) |
550 | { |
751 | { |
551 | // find new offset |
752 | return transform (mat3x3 (&matrix[0][0])); |
552 | int ox = mat_apply (matrix, 0, x, y); |
753 | } |
553 | int oy = mat_apply (matrix, 1, x, y); |
754 | |
|
|
755 | rxvt_img * |
|
|
756 | rxvt_img::transform (const nv *matrix) |
|
|
757 | { |
|
|
758 | mat3x3 m (matrix); |
554 | |
759 | |
555 | // calculate new pixel bounding box coordinates |
760 | // calculate new pixel bounding box coordinates |
556 | double d [2], rmin[2], rmax[2]; |
761 | nv rmin[2], rmax[2]; |
557 | |
762 | |
558 | for (int i = 0; i < 2; ++i) |
763 | for (int i = 0; i < 2; ++i) |
559 | { |
764 | { |
560 | double v; |
765 | nv v; |
|
|
766 | |
561 | v = mat_apply (matrix, i, 0, 0); rmin [i] = rmax [i] = v; d [i] = v; |
767 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
562 | v = mat_apply (matrix, i, w, 0); min_it (rmin [i], v); max_it (rmax [i], v); |
768 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
563 | v = mat_apply (matrix, i, 0, h); min_it (rmin [i], v); max_it (rmax [i], v); |
769 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
564 | v = mat_apply (matrix, i, w, h); min_it (rmin [i], v); max_it (rmax [i], v); |
770 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
565 | } |
771 | } |
566 | |
772 | |
|
|
773 | float sx = rmin [0] - x; |
|
|
774 | float sy = rmin [1] - y; |
|
|
775 | |
|
|
776 | // TODO: adjust matrix for subpixel accuracy |
567 | int dx = floor (rmin [0]); |
777 | int nx = floor (rmin [0]); |
568 | int dy = floor (rmin [1]); |
778 | int ny = floor (rmin [1]); |
569 | |
779 | |
570 | int new_width = ceil (rmax [0] - dx); |
780 | int new_width = ceil (rmax [0] - rmin [0]); |
571 | int new_height = ceil (rmax [1] - dy); |
781 | int new_height = ceil (rmax [1] - rmin [1]); |
572 | |
782 | |
573 | double inv[3][3]; |
783 | mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse (); |
574 | mat_invert (matrix, inv); |
|
|
575 | |
784 | |
576 | rxvt_img *img = new rxvt_img (s, format, ox - dx - d [0], oy - dy - d [1], new_width, new_height, repeat); |
785 | composer cc (this, new rxvt_img (s, format, nx, ny, new_width, new_height, repeat)); |
577 | img->alloc (); |
|
|
578 | |
|
|
579 | Display *dpy = s->display->dpy; |
|
|
580 | Picture src = src_picture (); |
|
|
581 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
582 | |
786 | |
583 | XTransform xfrm; |
787 | XTransform xfrm; |
584 | |
788 | |
585 | for (int i = 0; i < 3; ++i) |
789 | for (int i = 0; i < 3; ++i) |
586 | for (int j = 0; j < 3; ++j) |
790 | for (int j = 0; j < 3; ++j) |
587 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
791 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
588 | |
792 | |
589 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
793 | XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0); |
590 | XRenderSetPictureTransform (dpy, src, &xfrm); |
794 | XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm); |
591 | XRenderComposite (dpy, PictOpSrc, src, None, dst, dx, dy, 0, 0, 0, 0, new_width, new_height); |
795 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
592 | |
796 | |
593 | XRenderFreePicture (dpy, src); |
|
|
594 | XRenderFreePicture (dpy, dst); |
|
|
595 | |
|
|
596 | return img; |
797 | return cc; |
597 | } |
798 | } |
598 | |
799 | |
599 | rxvt_img * |
800 | rxvt_img * |
600 | rxvt_img::scale (int new_width, int new_height) |
801 | rxvt_img::scale (int new_width, int new_height) |
601 | { |
802 | { |
602 | if (w == new_width && h == new_height) |
803 | if (w == new_width && h == new_height) |
603 | return clone (); |
804 | return clone (); |
604 | |
805 | |
605 | double matrix[3][3] = { |
|
|
606 | { new_width / (double)w, 0, 0 }, |
|
|
607 | { 0, new_height / (double)h, 0 }, |
|
|
608 | { 0, 0, 1 } |
|
|
609 | }; |
|
|
610 | |
|
|
611 | int old_repeat_mode = repeat; |
806 | int old_repeat_mode = repeat; |
612 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
807 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
613 | |
808 | |
614 | rxvt_img *img = transform (matrix); |
809 | rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h)); |
615 | |
810 | |
616 | repeat = old_repeat_mode; |
811 | repeat = old_repeat_mode; |
617 | img->repeat = repeat; |
812 | img->repeat = repeat; |
618 | |
813 | |
619 | return img; |
814 | return img; |
620 | } |
815 | } |
621 | |
816 | |
622 | rxvt_img * |
817 | rxvt_img * |
623 | rxvt_img::rotate (int cx, int cy, double phi) |
818 | rxvt_img::rotate (int cx, int cy, nv phi) |
624 | { |
819 | { |
625 | double s = sin (phi); |
|
|
626 | double c = cos (phi); |
|
|
627 | |
|
|
628 | double matrix[3][3] = { |
|
|
629 | { c, -s, cx - c * cx + s * cy }, |
|
|
630 | { s, c, cy - s * cx - c * cy }, |
|
|
631 | { 0, 0, 1 } |
|
|
632 | //{ c, -s, 0 }, |
|
|
633 | //{ s, c, 0 }, |
|
|
634 | //{ 0, 0, 1 } |
|
|
635 | }; |
|
|
636 | |
|
|
637 | //move (-cx, -cy); |
820 | move (-cx, -cy); |
638 | rxvt_img *img = transform (matrix); |
821 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
639 | //move ( cx, cy); |
822 | move ( cx, cy); |
640 | //img->move (cx, cy); |
823 | img->move (cx, cy); |
641 | |
824 | |
642 | return img; |
825 | return img; |
643 | } |
826 | } |
644 | |
827 | |
645 | rxvt_img * |
828 | rxvt_img * |
646 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
829 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
647 | { |
830 | { |
648 | if (new_format == format) |
831 | if (new_format == format) |
649 | return clone (); |
832 | return clone (); |
650 | |
833 | |
651 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
834 | composer cc (this, new rxvt_img (s, new_format, x, y, w, h, repeat)); |
652 | img->alloc (); |
|
|
653 | |
835 | |
654 | Display *dpy = s->display->dpy; |
|
|
655 | Picture src = src_picture (); |
|
|
656 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
657 | int op = PictOpSrc; |
836 | int op = PictOpSrc; |
658 | |
837 | |
659 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
838 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
660 | { |
839 | { |
661 | // does it have to be that complicated |
840 | // does it have to be that complicated |
662 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
841 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
663 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
842 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h); |
664 | |
843 | |
665 | op = PictOpOver; |
844 | op = PictOpOver; |
666 | } |
845 | } |
667 | |
846 | |
668 | XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
847 | XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
669 | |
848 | |
670 | XRenderFreePicture (dpy, src); |
|
|
671 | XRenderFreePicture (dpy, dst); |
|
|
672 | |
|
|
673 | return img; |
849 | return cc; |
674 | } |
850 | } |
675 | |
851 | |
676 | rxvt_img * |
852 | rxvt_img * |
677 | rxvt_img::blend (rxvt_img *img, double factor) |
853 | rxvt_img::tint (const rgba &c) |
678 | { |
854 | { |
679 | rxvt_img *img2 = clone (); |
855 | composer cc (this); |
680 | Display *dpy = s->display->dpy; |
856 | cc.mask (true); |
681 | Picture src = img->src_picture (); |
857 | cc.fill (c); |
682 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
683 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
|
|
684 | |
858 | |
685 | XRenderColor mask_c; |
|
|
686 | |
|
|
687 | mask_c.alpha = float_to_component (factor); |
|
|
688 | mask_c.red = |
|
|
689 | mask_c.green = |
|
|
690 | mask_c.blue = 0; |
|
|
691 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
692 | |
|
|
693 | XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
859 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
694 | |
860 | |
695 | XRenderFreePicture (dpy, src); |
|
|
696 | XRenderFreePicture (dpy, dst); |
|
|
697 | XRenderFreePicture (dpy, mask); |
|
|
698 | |
|
|
699 | return img2; |
861 | return cc; |
|
|
862 | } |
|
|
863 | |
|
|
864 | rxvt_img * |
|
|
865 | rxvt_img::filter (const char *name, int nparams, nv *params) |
|
|
866 | { |
|
|
867 | composer cc (this); |
|
|
868 | |
|
|
869 | XFixed *xparams = rxvt_temp_buf<XFixed> (nparams); |
|
|
870 | |
|
|
871 | for (int i = 0; i < nparams; ++i) |
|
|
872 | xparams [i] = XDoubleToFixed (params [i]); |
|
|
873 | |
|
|
874 | XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams); |
|
|
875 | |
|
|
876 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
877 | |
|
|
878 | return cc; |
700 | } |
879 | } |
701 | |
880 | |
702 | #endif |
881 | #endif |
703 | |
882 | |