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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 3 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 w = 1, int h = 1) |
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176 | { |
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177 | Pixmap pixmap = XCreatePixmap (dpy, srcimg->pm, w, h, 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 | // the casts are needed in C++11 (see 8.5.1) |
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194 | XRenderColor rc = { |
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195 | (unsigned short)(c.r * c.a / 65535), |
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196 | (unsigned short)(c.g * c.a / 65535), |
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197 | (unsigned short)(c.b * c.a / 65535), |
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198 | c.a |
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199 | }; |
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200 | msk = XRenderCreateSolidFill (dpy, &rc); |
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201 | ecb_assume (msk); |
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202 | } |
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203 | |
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204 | void fill (const rgba &c) |
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205 | { |
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206 | XRenderColor rc = { |
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207 | (unsigned short)(c.r * c.a / 65535), |
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208 | (unsigned short)(c.g * c.a / 65535), |
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209 | (unsigned short)(c.b * c.a / 65535), |
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210 | c.a |
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211 | }; |
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212 | |
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213 | XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1); |
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214 | } |
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215 | |
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216 | operator rxvt_img *() |
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217 | { |
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218 | return dstimg; |
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219 | } |
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220 | |
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221 | ecb_noinline |
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222 | ~composer () |
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223 | { |
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224 | XRenderFreePicture (dpy, src); |
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225 | XRenderFreePicture (dpy, dst); |
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226 | if (msk) XRenderFreePicture (dpy, msk); |
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227 | } |
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228 | }; |
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229 | } |
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230 | |
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231 | static XRenderPictFormat * |
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232 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
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233 | { |
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234 | if (format->direct.alphaMask) |
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235 | return format; // already has alpha |
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236 | |
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237 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
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238 | if (format->type == PictTypeDirect) |
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239 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
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240 | if (f->direct.alphaMask |
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241 | && f->type == PictTypeDirect |
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242 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
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243 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
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244 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
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245 | return f; |
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246 | |
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247 | // should be a very good fallback |
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248 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
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249 | } |
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250 | |
7 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
251 | 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), |
252 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
9 | pm(0), ref(0) |
253 | pm(0), ref(0) |
10 | { |
254 | { |
11 | } |
255 | } |
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… | |
17 | } |
261 | } |
18 | |
262 | |
19 | rxvt_img * |
263 | rxvt_img * |
20 | rxvt_img::new_from_root (rxvt_screen *s) |
264 | rxvt_img::new_from_root (rxvt_screen *s) |
21 | { |
265 | { |
22 | Display *dpy = s->display->dpy; |
266 | Display *dpy = s->dpy; |
23 | unsigned int root_pm_w, root_pm_h; |
267 | unsigned int root_pm_w, root_pm_h; |
24 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
268 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]); |
25 | if (root_pixmap == None) |
269 | if (root_pixmap == None) |
26 | root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
270 | root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]); |
27 | |
271 | |
28 | if (root_pixmap == None) |
272 | if (root_pixmap == None) |
29 | return 0; |
273 | return 0; |
30 | |
274 | |
31 | Window wdummy; |
275 | Window wdummy; |
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… | |
54 | # if HAVE_PIXBUF |
298 | # if HAVE_PIXBUF |
55 | |
299 | |
56 | rxvt_img * |
300 | rxvt_img * |
57 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
301 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
58 | { |
302 | { |
59 | Display *dpy = s->display->dpy; |
303 | Display *dpy = s->dpy; |
60 | |
304 | |
61 | int width = gdk_pixbuf_get_width (pb); |
305 | int width = gdk_pixbuf_get_width (pb); |
62 | int height = gdk_pixbuf_get_height (pb); |
306 | int height = gdk_pixbuf_get_height (pb); |
63 | |
307 | |
64 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
308 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
… | |
… | |
106 | for (int y = 0; y < height; y++) |
350 | for (int y = 0; y < height; y++) |
107 | { |
351 | { |
108 | unsigned char *src = row; |
352 | unsigned char *src = row; |
109 | uint32_t *dst = (uint32_t *)line; |
353 | uint32_t *dst = (uint32_t *)line; |
110 | |
354 | |
111 | if (!pb_has_alpha) |
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112 | for (int x = 0; x < width; x++) |
355 | for (int x = 0; x < width; x++) |
113 | { |
356 | { |
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++; |
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360 | uint8_t a = *src; |
117 | |
361 | |
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362 | // this is done so it can be jump-free, but newer gcc's clone inner the loop |
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363 | a = pb_has_alpha ? a : 255; |
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364 | src += pb_has_alpha; |
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365 | |
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366 | r = (r * a + 127) / 255; |
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367 | g = (g * a + 127) / 255; |
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368 | b = (b * a + 127) / 255; |
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369 | |
118 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
370 | uint32_t v = (a << 24) | (r << 16) | (g << 8) | b; |
119 | |
371 | |
120 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
372 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
121 | v = ecb_bswap32 (v); |
373 | v = ecb_bswap32 (v); |
122 | |
374 | |
123 | *dst++ = v; |
375 | *dst++ = v; |
124 | } |
376 | } |
125 | else |
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126 | for (int x = 0; x < width; x++) |
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127 | { |
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128 | uint32_t v = *(uint32_t *)src; src += 4; |
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129 | |
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130 | if (ecb_big_endian ()) |
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131 | v = ecb_bswap32 (v); |
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132 | |
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133 | v = ecb_rotl32 (v, 8); // abgr to bgra |
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134 | |
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135 | if (!byte_order_mismatch) |
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136 | v = ecb_bswap32 (v); |
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137 | |
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138 | *dst++ = v; |
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139 | } |
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140 | |
377 | |
141 | row += rowstride; |
378 | row += rowstride; |
142 | line += xi.bytes_per_line; |
379 | line += xi.bytes_per_line; |
143 | } |
380 | } |
144 | |
381 | |
… | |
… | |
177 | { |
414 | { |
178 | if (--ref->cnt) |
415 | if (--ref->cnt) |
179 | return; |
416 | return; |
180 | |
417 | |
181 | if (pm && ref->ours) |
418 | if (pm && ref->ours) |
182 | XFreePixmap (s->display->dpy, pm); |
419 | XFreePixmap (s->dpy, pm); |
183 | |
420 | |
184 | delete ref; |
421 | delete ref; |
185 | } |
422 | } |
186 | |
423 | |
187 | rxvt_img::~rxvt_img () |
424 | rxvt_img::~rxvt_img () |
… | |
… | |
190 | } |
427 | } |
191 | |
428 | |
192 | void |
429 | void |
193 | rxvt_img::alloc () |
430 | rxvt_img::alloc () |
194 | { |
431 | { |
195 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
432 | pm = XCreatePixmap (s->dpy, s->display->root, w, h, format->depth); |
196 | ref = new pixref (w, h); |
433 | ref = new pixref (w, h); |
197 | } |
434 | } |
198 | |
435 | |
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436 | rxvt_img * |
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437 | rxvt_img::new_empty () |
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438 | { |
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439 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
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440 | img->alloc (); |
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441 | |
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442 | return img; |
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443 | } |
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444 | |
199 | Picture |
445 | Picture |
200 | rxvt_img::src_picture () |
446 | rxvt_img::picture () |
201 | { |
447 | { |
202 | Display *dpy = s->display->dpy; |
448 | Display *dpy = s->dpy; |
203 | |
449 | |
204 | XRenderPictureAttributes pa; |
450 | XRenderPictureAttributes pa; |
205 | pa.repeat = repeat; |
451 | pa.repeat = repeat; |
206 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
452 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
207 | |
453 | |
… | |
… | |
212 | rxvt_img::unshare () |
458 | rxvt_img::unshare () |
213 | { |
459 | { |
214 | if (ref->cnt == 1 && ref->ours) |
460 | if (ref->cnt == 1 && ref->ours) |
215 | return; |
461 | return; |
216 | |
462 | |
217 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
463 | Pixmap pm2 = XCreatePixmap (s->dpy, s->display->root, ref->w, ref->h, format->depth); |
218 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
464 | GC gc = XCreateGC (s->dpy, pm, 0, 0); |
219 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
465 | XCopyArea (s->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
220 | XFreeGC (s->display->dpy, gc); |
466 | XFreeGC (s->dpy, gc); |
221 | |
467 | |
222 | destroy (); |
468 | destroy (); |
223 | |
469 | |
224 | pm = pm2; |
470 | pm = pm2; |
225 | ref = new pixref (ref->w, ref->h); |
471 | ref = new pixref (ref->w, ref->h); |
226 | } |
472 | } |
227 | |
473 | |
228 | void |
474 | void |
229 | rxvt_img::fill (const rxvt_color &c) |
475 | rxvt_img::fill (const rgba &c, int x, int y, int w, int h) |
230 | { |
476 | { |
231 | rgba cc; |
|
|
232 | c.get (cc); |
|
|
233 | XRenderColor rc = { cc.r, cc.g, cc.b, cc.a }; |
477 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
234 | |
478 | |
235 | Display *dpy = s->display->dpy; |
479 | Display *dpy = s->dpy; |
236 | Picture src = src_picture (); |
480 | Picture src = picture (); |
237 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
481 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, x, y, w, h); |
238 | XRenderFreePicture (dpy, src); |
482 | XRenderFreePicture (dpy, src); |
239 | } |
483 | } |
240 | |
484 | |
|
|
485 | void |
|
|
486 | rxvt_img::fill (const rgba &c) |
|
|
487 | { |
|
|
488 | fill (c, 0, 0, w, h); |
|
|
489 | } |
|
|
490 | |
|
|
491 | void |
|
|
492 | rxvt_img::add_alpha () |
|
|
493 | { |
|
|
494 | if (format->direct.alphaMask) |
|
|
495 | return; |
|
|
496 | |
|
|
497 | composer cc (this, new rxvt_img (s, find_alpha_format_for (s->dpy, format), x, y, w, h, repeat)); |
|
|
498 | |
|
|
499 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
500 | |
|
|
501 | rxvt_img *img = cc; |
|
|
502 | |
|
|
503 | ::swap (img->ref, ref); |
|
|
504 | ::swap (img->pm , pm ); |
|
|
505 | |
|
|
506 | delete img; |
|
|
507 | } |
|
|
508 | |
241 | static void |
509 | static void |
242 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
510 | get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params) |
243 | { |
511 | { |
244 | double sigma = radius / 2.0; |
512 | nv sigma = radius / 2.0; |
245 | double scale = sqrt (2.0 * M_PI) * sigma; |
513 | nv scale = sqrt (2.0 * M_PI) * sigma; |
246 | double sum = 0.0; |
514 | nv sum = 0.0; |
247 | |
515 | |
248 | for (int i = 0; i < width; i++) |
516 | for (int i = 0; i < width; i++) |
249 | { |
517 | { |
250 | double x = i - width / 2; |
518 | nv x = i - width / 2; |
251 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
519 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
252 | sum += kernel[i]; |
520 | sum += kernel[i]; |
253 | } |
521 | } |
254 | |
522 | |
255 | params[0] = XDoubleToFixed (width); |
523 | params[0] = XDoubleToFixed (width); |
… | |
… | |
263 | rxvt_img::blur (int rh, int rv) |
531 | rxvt_img::blur (int rh, int rv) |
264 | { |
532 | { |
265 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
533 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
266 | return clone (); |
534 | return clone (); |
267 | |
535 | |
268 | Display *dpy = s->display->dpy; |
536 | Display *dpy = s->dpy; |
269 | int size = max (rh, rv) * 2 + 1; |
537 | int size = max (rh, rv) * 2 + 1; |
270 | double *kernel = (double *)malloc (size * sizeof (double)); |
538 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
271 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
539 | XFixed *params = rxvt_temp_buf<XFixed> (size + 2); |
272 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
540 | rxvt_img *img = new_empty (); |
273 | img->alloc (); |
|
|
274 | |
541 | |
275 | XRenderPictureAttributes pa; |
542 | XRenderPictureAttributes pa; |
276 | pa.repeat = RepeatPad; |
543 | pa.repeat = RepeatPad; |
277 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
544 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
278 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
545 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
… | |
… | |
312 | 0, 0, |
579 | 0, 0, |
313 | w, h); |
580 | w, h); |
314 | } |
581 | } |
315 | |
582 | |
316 | free (kernel); |
583 | free (kernel); |
317 | free (params); |
|
|
318 | |
584 | |
319 | XRenderFreePicture (dpy, src); |
585 | XRenderFreePicture (dpy, src); |
320 | XRenderFreePicture (dpy, dst); |
586 | XRenderFreePicture (dpy, dst); |
321 | XRenderFreePicture (dpy, tmp); |
587 | XRenderFreePicture (dpy, tmp); |
322 | |
588 | |
323 | return img; |
589 | return img; |
324 | } |
590 | } |
325 | |
591 | |
326 | static Picture |
592 | rxvt_img * |
327 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
593 | rxvt_img::muladd (nv mul, nv add) |
328 | { |
594 | { |
329 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
595 | // STEP 1: double the image width, fill all odd columns with white (==1) |
330 | |
596 | |
331 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
597 | composer cc (this, new rxvt_img (s, format, 0, 0, w * 2, h, repeat)); |
332 | XRenderPictureAttributes pa; |
|
|
333 | pa.repeat = RepeatNormal; |
|
|
334 | pa.component_alpha = component_alpha; |
|
|
335 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
|
|
336 | |
598 | |
337 | XFreePixmap (dpy, pixmap); |
599 | // why the hell does XRenderSetPictureTransform want a writable matrix :( |
|
|
600 | // that keeps us from just static const'ing this matrix. |
|
|
601 | XTransform h_double = { |
|
|
602 | 0x08000, 0, 0, |
|
|
603 | 0, 0x10000, 0, |
|
|
604 | 0, 0, 0x10000 |
|
|
605 | }; |
338 | |
606 | |
339 | return mask; |
607 | XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0); |
340 | } |
608 | XRenderSetPictureTransform (cc.dpy, cc.src, &h_double); |
|
|
609 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
341 | |
610 | |
342 | static void |
611 | cc.mask (false, 2, 1); |
|
|
612 | |
|
|
613 | static const XRenderColor c0 = { 0, 0, 0, 0 }; |
|
|
614 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c0, 0, 0, 1, 1); |
|
|
615 | static const XRenderColor c1 = { 65535, 65535, 65535, 65535 }; |
|
|
616 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c1, 1, 0, 1, 1); |
|
|
617 | |
|
|
618 | Picture white = XRenderCreateSolidFill (cc.dpy, &c1); |
|
|
619 | |
|
|
620 | XRenderComposite (cc.dpy, PictOpOver, white, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
621 | |
|
|
622 | XRenderFreePicture (cc.dpy, white); |
|
|
623 | |
|
|
624 | // STEP 2: convolve the image with a 3x1 filter |
|
|
625 | // a 2x1 filter would obviously suffice, but given the total lack of specification |
|
|
626 | // for xrender, I expect different xrender implementations to randomly diverge. |
|
|
627 | // we also halve the image, and hope for the best (again, for lack of specs). |
|
|
628 | composer cc2 (cc.dstimg); |
|
|
629 | |
|
|
630 | XFixed kernel [] = { |
|
|
631 | XDoubleToFixed (3), XDoubleToFixed (1), |
|
|
632 | XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add) |
|
|
633 | }; |
|
|
634 | |
|
|
635 | XTransform h_halve = { |
|
|
636 | 0x20000, 0, 0, |
|
|
637 | 0, 0x10000, 0, |
|
|
638 | 0, 0, 0x10000 |
|
|
639 | }; |
|
|
640 | |
|
|
641 | XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0); |
|
|
642 | XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve); |
|
|
643 | XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel)); |
|
|
644 | |
|
|
645 | XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
646 | |
|
|
647 | return cc2; |
|
|
648 | } |
|
|
649 | |
|
|
650 | ecb_noinline static void |
343 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
651 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
344 | { |
652 | { |
345 | int32_t x = clamp (c, cl0, cl1); |
653 | int32_t x = clamp (c, cl0, cl1); |
346 | c -= x; |
654 | c -= x; |
347 | xc = x; |
655 | xc = x; |
348 | } |
656 | } |
349 | |
657 | |
350 | static bool |
658 | ecb_noinline static bool |
351 | 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) |
659 | 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) |
352 | { |
660 | { |
353 | extract (cl0, cl1, r, xr); |
661 | extract (cl0, cl1, r, xr); |
354 | extract (cl0, cl1, g, xg); |
662 | extract (cl0, cl1, g, xg); |
355 | extract (cl0, cl1, b, xb); |
663 | extract (cl0, cl1, b, xb); |
… | |
… | |
361 | void |
669 | void |
362 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
670 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
363 | { |
671 | { |
364 | unshare (); |
672 | unshare (); |
365 | |
673 | |
366 | Display *dpy = s->display->dpy; |
674 | Display *dpy = s->dpy; |
367 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
675 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
368 | |
676 | |
369 | // loop should not be needed for brightness, as only -1..1 makes sense |
677 | // loop should not be needed for brightness, as only -1..1 makes sense |
370 | //while (r | g | b | a) |
678 | //while (r | g | b | a) |
371 | { |
679 | { |
… | |
… | |
395 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
703 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
396 | { |
704 | { |
397 | if (r < 0 || g < 0 || b < 0 || a < 0) |
705 | if (r < 0 || g < 0 || b < 0 || a < 0) |
398 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
706 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
399 | |
707 | |
400 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
401 | img->alloc (); |
|
|
402 | |
|
|
403 | { |
|
|
404 | rxvt_color empty; |
|
|
405 | empty.set (s, rgba (0, 0, 0, 0)); |
|
|
406 | img->fill (empty); |
|
|
407 | } |
|
|
408 | |
|
|
409 | // premultiply (yeah, these are not exact, sue me or fix it) |
708 | // premultiply (yeah, these are not exact, sue me or fix it) |
410 | r = (r * (a >> 8)) >> 8; |
709 | r = (r * (a >> 8)) >> 8; |
411 | g = (g * (a >> 8)) >> 8; |
710 | g = (g * (a >> 8)) >> 8; |
412 | b = (b * (a >> 8)) >> 8; |
711 | b = (b * (a >> 8)) >> 8; |
413 | |
712 | |
414 | Display *dpy = s->display->dpy; |
713 | composer cc (this); |
|
|
714 | rxvt_img *img = cc; |
|
|
715 | img->fill (rgba (0, 0, 0, 0)); |
415 | |
716 | |
416 | Picture src = src_picture (); |
717 | cc.mask (true); |
417 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
418 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
|
|
419 | |
718 | |
420 | //TODO: this operator does not yet implement some useful contrast |
719 | //TODO: this operator does not yet implement some useful contrast |
421 | while (r | g | b | a) |
720 | while (r | g | b | a) |
422 | { |
721 | { |
423 | unsigned short xr, xg, xb, xa; |
722 | unsigned short xr, xg, xb, xa; |
424 | XRenderColor mask_c; |
723 | XRenderColor mask_c; |
425 | |
724 | |
426 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
725 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
427 | { |
726 | { |
428 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
727 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); |
429 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
728 | XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
430 | } |
729 | } |
431 | } |
730 | } |
432 | |
|
|
433 | XRenderFreePicture (dpy, mul); |
|
|
434 | XRenderFreePicture (dpy, dst); |
|
|
435 | XRenderFreePicture (dpy, src); |
|
|
436 | |
731 | |
437 | ::swap (img->ref, ref); |
732 | ::swap (img->ref, ref); |
438 | ::swap (img->pm , pm ); |
733 | ::swap (img->pm , pm ); |
439 | |
734 | |
440 | delete img; |
735 | delete img; |
441 | } |
736 | } |
442 | |
737 | |
|
|
738 | void |
|
|
739 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
|
|
740 | { |
|
|
741 | unshare (); |
|
|
742 | |
|
|
743 | composer cc (img, this); |
|
|
744 | |
|
|
745 | if (mask != 1.) |
|
|
746 | cc.mask (rgba (0, 0, 0, float_to_component (mask))); |
|
|
747 | |
|
|
748 | XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
|
|
749 | } |
|
|
750 | |
443 | rxvt_img * |
751 | rxvt_img * |
444 | rxvt_img::clone () |
752 | rxvt_img::clone () |
445 | { |
753 | { |
446 | return new rxvt_img (*this); |
754 | return new rxvt_img (*this); |
447 | } |
|
|
448 | |
|
|
449 | static XRenderPictFormat * |
|
|
450 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
|
|
451 | { |
|
|
452 | if (format->direct.alphaMask) |
|
|
453 | return format; // already has alpha |
|
|
454 | |
|
|
455 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
|
|
456 | if (format->type == PictTypeDirect) |
|
|
457 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
|
|
458 | if (f->direct.alphaMask |
|
|
459 | && f->type == PictTypeDirect |
|
|
460 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
|
|
461 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
|
|
462 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
|
|
463 | return f; |
|
|
464 | |
|
|
465 | // should be a very good fallback |
|
|
466 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
|
|
467 | } |
755 | } |
468 | |
756 | |
469 | rxvt_img * |
757 | rxvt_img * |
470 | rxvt_img::reify () |
758 | rxvt_img::reify () |
471 | { |
759 | { |
472 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
760 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
473 | return clone (); |
761 | return clone (); |
474 | |
|
|
475 | Display *dpy = s->display->dpy; |
|
|
476 | |
762 | |
477 | // add an alpha channel if... |
763 | // add an alpha channel if... |
478 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
764 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
479 | && (x || y) // we need one because of non-zero offset |
765 | && (x || y) // we need one because of non-zero offset |
480 | && repeat == RepeatNone; // and we have no good pixels to fill with |
766 | && repeat == RepeatNone; // and we have no good pixels to fill with |
481 | |
767 | |
482 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
768 | composer cc (this, new rxvt_img (s, alpha ? find_alpha_format_for (s->dpy, format) : format, |
483 | img->alloc (); |
769 | 0, 0, w, h, repeat)); |
484 | |
770 | |
485 | Picture src = src_picture (); |
771 | if (repeat == RepeatNone) |
486 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
487 | |
|
|
488 | if (alpha) |
|
|
489 | { |
772 | { |
490 | XRenderColor rc = { 0, 0, 0, 0 }; |
773 | XRenderColor rc = { 0, 0, 0, 0 }; |
491 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
774 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
492 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h); |
775 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
493 | } |
776 | } |
494 | else |
777 | else |
495 | XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
778 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h); |
496 | |
779 | |
497 | XRenderFreePicture (dpy, src); |
|
|
498 | XRenderFreePicture (dpy, dst); |
|
|
499 | |
|
|
500 | return img; |
780 | return cc; |
501 | } |
781 | } |
502 | |
782 | |
503 | rxvt_img * |
783 | rxvt_img * |
504 | rxvt_img::sub_rect (int x, int y, int width, int height) |
784 | rxvt_img::sub_rect (int x, int y, int width, int height) |
505 | { |
785 | { |
506 | rxvt_img *img = clone (); |
786 | rxvt_img *img = clone (); |
507 | |
787 | |
508 | img->x += x; |
788 | img->x -= x; |
509 | img->y += y; |
789 | img->y -= y; |
510 | |
790 | |
511 | if (w != width || h != height) |
791 | if (w != width || h != height) |
512 | { |
792 | { |
513 | img->w = width; |
793 | img->w = width; |
514 | img->h = height; |
794 | img->h = height; |
… | |
… | |
519 | } |
799 | } |
520 | |
800 | |
521 | return img; |
801 | return img; |
522 | } |
802 | } |
523 | |
803 | |
524 | static void |
|
|
525 | mat_invert (double mat[3][3], double (&inv)[3][3]) |
|
|
526 | { |
|
|
527 | double s0 = mat [2][2] * mat [1][1] - mat [2][1] * mat [1][2]; |
|
|
528 | double s1 = mat [2][1] * mat [0][2] - mat [2][2] * mat [0][1]; |
|
|
529 | double s2 = mat [1][2] * mat [0][1] - mat [1][1] * mat [0][2]; |
|
|
530 | |
|
|
531 | double invdet = 1. / (mat [0][0] * s0 + mat [1][0] * s1 + mat [2][0] * s2); |
|
|
532 | |
|
|
533 | inv [0][0] = invdet * s0; |
|
|
534 | inv [0][1] = invdet * s1; |
|
|
535 | inv [0][2] = invdet * s2; |
|
|
536 | |
|
|
537 | inv [1][0] = invdet * (mat [2][0] * mat [1][2] - mat [2][2] * mat [1][0]); |
|
|
538 | inv [1][1] = invdet * (mat [2][2] * mat [0][0] - mat [2][0] * mat [0][2]); |
|
|
539 | inv [1][2] = invdet * (mat [1][0] * mat [0][2] - mat [1][2] * mat [0][0]); |
|
|
540 | |
|
|
541 | inv [2][0] = invdet * (mat [2][1] * mat [1][0] - mat [2][0] * mat [1][1]); |
|
|
542 | inv [2][1] = invdet * (mat [2][0] * mat [0][1] - mat [2][1] * mat [0][0]); |
|
|
543 | inv [2][2] = invdet * (mat [1][1] * mat [0][0] - mat [1][0] * mat [0][1]); |
|
|
544 | } |
|
|
545 | |
|
|
546 | static double |
|
|
547 | mat_apply (double mat[3][3], int i, double x, double y) |
|
|
548 | { |
|
|
549 | double v = mat [i][0] * x + mat [i][1] * y + mat [i][2]; |
|
|
550 | double w = mat [2][0] * x + mat [2][1] * y + mat [2][2]; |
|
|
551 | |
|
|
552 | return v * (1. / w); |
|
|
553 | } |
|
|
554 | |
|
|
555 | rxvt_img * |
804 | rxvt_img * |
556 | rxvt_img::transform (double matrix[3][3]) |
805 | rxvt_img::transform (const nv matrix[3][3]) |
557 | { |
806 | { |
558 | // find new offset |
807 | return transform (mat3x3 (&matrix[0][0])); |
559 | int ox = mat_apply (matrix, 0, x, y); |
808 | } |
560 | int oy = mat_apply (matrix, 1, x, y); |
809 | |
|
|
810 | rxvt_img * |
|
|
811 | rxvt_img::transform (const nv *matrix) |
|
|
812 | { |
|
|
813 | mat3x3 m (matrix); |
561 | |
814 | |
562 | // calculate new pixel bounding box coordinates |
815 | // calculate new pixel bounding box coordinates |
563 | double rmin[2], rmax[2]; |
816 | nv rmin[2], rmax[2]; |
564 | |
817 | |
565 | for (int i = 0; i < 2; ++i) |
818 | for (int i = 0; i < 2; ++i) |
566 | { |
819 | { |
567 | double v; |
820 | nv v; |
|
|
821 | |
568 | v = mat_apply (matrix, i, 0, 0); rmin [i] = rmax [i] = v; |
822 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
569 | v = mat_apply (matrix, i, w, 0); min_it (rmin [i], v); max_it (rmax [i], v); |
823 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
570 | v = mat_apply (matrix, i, 0, h); min_it (rmin [i], v); max_it (rmax [i], v); |
824 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
571 | v = mat_apply (matrix, i, w, h); min_it (rmin [i], v); max_it (rmax [i], v); |
825 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
572 | } |
826 | } |
573 | |
827 | |
|
|
828 | float sx = rmin [0] - x; |
|
|
829 | float sy = rmin [1] - y; |
|
|
830 | |
|
|
831 | // TODO: adjust matrix for subpixel accuracy |
574 | int dx = floor (rmin [0]); |
832 | int nx = floor (rmin [0]); |
575 | int dy = floor (rmin [1]); |
833 | int ny = floor (rmin [1]); |
576 | |
834 | |
577 | int new_width = ceil (rmax [0] - dx); |
835 | int new_width = ceil (rmax [0] - rmin [0]); |
578 | int new_height = ceil (rmax [1] - dy); |
836 | int new_height = ceil (rmax [1] - rmin [1]); |
579 | |
837 | |
580 | double inv[3][3]; |
838 | mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse (); |
581 | mat_invert (matrix, inv); |
|
|
582 | |
839 | |
583 | rxvt_img *img = new rxvt_img (s, format, ox - dx, oy - dy, new_width, new_height, repeat); |
840 | composer cc (this, new rxvt_img (s, format, nx, ny, new_width, new_height, repeat)); |
584 | img->alloc (); |
|
|
585 | |
|
|
586 | Display *dpy = s->display->dpy; |
|
|
587 | Picture src = src_picture (); |
|
|
588 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
589 | |
841 | |
590 | XTransform xfrm; |
842 | XTransform xfrm; |
591 | |
843 | |
592 | for (int i = 0; i < 3; ++i) |
844 | for (int i = 0; i < 3; ++i) |
593 | for (int j = 0; j < 3; ++j) |
845 | for (int j = 0; j < 3; ++j) |
594 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
846 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
595 | |
847 | |
596 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
848 | XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0); |
597 | XRenderSetPictureTransform (dpy, src, &xfrm); |
849 | XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm); |
598 | XRenderComposite (dpy, PictOpSrc, src, None, dst, dx, dy, 0, 0, 0, 0, new_width, new_height); |
850 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
599 | |
851 | |
600 | XRenderFreePicture (dpy, src); |
|
|
601 | XRenderFreePicture (dpy, dst); |
|
|
602 | |
|
|
603 | return img; |
852 | return cc; |
604 | } |
853 | } |
605 | |
854 | |
606 | rxvt_img * |
855 | rxvt_img * |
607 | rxvt_img::scale (int new_width, int new_height) |
856 | rxvt_img::scale (int new_width, int new_height) |
608 | { |
857 | { |
609 | if (w == new_width && h == new_height) |
858 | if (w == new_width && h == new_height) |
610 | return clone (); |
859 | return clone (); |
611 | |
860 | |
612 | double matrix[3][3] = { |
|
|
613 | { new_width / (double)w, 0, 0 }, |
|
|
614 | { 0, new_height / (double)h, 0 }, |
|
|
615 | { 0, 0, 1 } |
|
|
616 | }; |
|
|
617 | |
|
|
618 | int old_repeat_mode = repeat; |
861 | int old_repeat_mode = repeat; |
619 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
862 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
620 | |
863 | |
621 | rxvt_img *img = transform (matrix); |
864 | rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h)); |
622 | |
865 | |
623 | repeat = old_repeat_mode; |
866 | repeat = old_repeat_mode; |
624 | img->repeat = repeat; |
867 | img->repeat = repeat; |
625 | |
868 | |
626 | return img; |
869 | return img; |
627 | } |
870 | } |
628 | |
871 | |
629 | rxvt_img * |
872 | rxvt_img * |
630 | rxvt_img::rotate (int cx, int cy, double phi) |
873 | rxvt_img::rotate (int cx, int cy, nv phi) |
631 | { |
874 | { |
632 | double s = sin (phi); |
|
|
633 | double c = cos (phi); |
|
|
634 | |
|
|
635 | double matrix[3][3] = { |
|
|
636 | //{ c, -s, cx - c * cx + s * cy }, |
|
|
637 | //{ s, c, cy - s * cx - c * cy }, |
|
|
638 | //{ 0, 0, 1 } |
|
|
639 | { c, -s, 0 }, |
|
|
640 | { s, c, 0 }, |
|
|
641 | { 0, 0, 1 } |
|
|
642 | }; |
|
|
643 | |
|
|
644 | move (-cx, -cy); |
875 | move (-cx, -cy); |
645 | rxvt_img *img = transform (matrix); |
876 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
646 | move ( cx, cy); |
877 | move ( cx, cy); |
647 | img->move (cx, cy); |
878 | img->move (cx, cy); |
648 | |
879 | |
649 | return img; |
880 | return img; |
650 | } |
881 | } |
651 | |
882 | |
652 | rxvt_img * |
883 | rxvt_img * |
653 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) |
884 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
654 | { |
885 | { |
655 | if (new_format == format) |
886 | if (new_format == format) |
656 | return clone (); |
887 | return clone (); |
657 | |
888 | |
658 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
889 | composer cc (this, new rxvt_img (s, new_format, x, y, w, h, repeat)); |
659 | img->alloc (); |
|
|
660 | |
890 | |
661 | Display *dpy = s->display->dpy; |
|
|
662 | Picture src = src_picture (); |
|
|
663 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
664 | int op = PictOpSrc; |
891 | int op = PictOpSrc; |
665 | |
892 | |
666 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
893 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
667 | { |
894 | { |
668 | // does it have to be that complicated |
895 | // does it have to be that complicated |
669 | rgba c; |
|
|
670 | bg.get (c); |
|
|
671 | |
|
|
672 | XRenderColor rc = { c.r, c.g, c.b, 0xffff }; |
896 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
673 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
897 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h); |
674 | |
898 | |
675 | op = PictOpOver; |
899 | op = PictOpOver; |
676 | } |
900 | } |
677 | |
901 | |
678 | XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
902 | XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
679 | |
903 | |
680 | XRenderFreePicture (dpy, src); |
904 | return cc; |
681 | XRenderFreePicture (dpy, dst); |
905 | } |
|
|
906 | |
|
|
907 | rxvt_img * |
|
|
908 | rxvt_img::tint (const rgba &c) |
|
|
909 | { |
|
|
910 | composer cc (this); |
|
|
911 | cc.mask (true); |
|
|
912 | cc.fill (c); |
|
|
913 | |
|
|
914 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
915 | |
|
|
916 | return cc; |
|
|
917 | } |
|
|
918 | |
|
|
919 | rxvt_img * |
|
|
920 | rxvt_img::shade (nv factor, rgba c) |
|
|
921 | { |
|
|
922 | clamp_it (factor, -1., 1.); |
|
|
923 | factor++; |
|
|
924 | |
|
|
925 | if (factor > 1) |
|
|
926 | { |
|
|
927 | c.r = c.r * (2 - factor); |
|
|
928 | c.g = c.g * (2 - factor); |
|
|
929 | c.b = c.b * (2 - factor); |
|
|
930 | } |
|
|
931 | else |
|
|
932 | { |
|
|
933 | c.r = c.r * factor; |
|
|
934 | c.g = c.g * factor; |
|
|
935 | c.b = c.b * factor; |
|
|
936 | } |
|
|
937 | |
|
|
938 | rxvt_img *img = this->tint (c); |
|
|
939 | |
|
|
940 | if (factor > 1) |
|
|
941 | { |
|
|
942 | c.a = 0xffff; |
|
|
943 | c.r = |
|
|
944 | c.g = |
|
|
945 | c.b = 0xffff * (factor - 1); |
|
|
946 | |
|
|
947 | img->brightness (c.r, c.g, c.b, c.a); |
|
|
948 | } |
682 | |
949 | |
683 | return img; |
950 | return img; |
684 | } |
951 | } |
685 | |
952 | |
686 | rxvt_img * |
953 | rxvt_img * |
687 | rxvt_img::blend (rxvt_img *img, double factor) |
954 | rxvt_img::filter (const char *name, int nparams, nv *params) |
688 | { |
955 | { |
689 | rxvt_img *img2 = clone (); |
956 | composer cc (this); |
690 | Display *dpy = s->display->dpy; |
|
|
691 | Picture src = img->src_picture (); |
|
|
692 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
693 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
|
|
694 | |
957 | |
695 | XRenderColor mask_c; |
958 | XFixed *xparams = rxvt_temp_buf<XFixed> (nparams); |
696 | |
959 | |
697 | mask_c.alpha = float_to_component (factor); |
960 | for (int i = 0; i < nparams; ++i) |
698 | mask_c.red = |
961 | xparams [i] = XDoubleToFixed (params [i]); |
699 | mask_c.green = |
|
|
700 | mask_c.blue = 0; |
|
|
701 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
702 | |
962 | |
|
|
963 | XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams); |
|
|
964 | |
703 | XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
965 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
704 | |
966 | |
705 | XRenderFreePicture (dpy, src); |
|
|
706 | XRenderFreePicture (dpy, dst); |
|
|
707 | XRenderFreePicture (dpy, mask); |
|
|
708 | |
|
|
709 | return img2; |
967 | return cc; |
710 | } |
968 | } |
711 | |
969 | |
712 | #endif |
970 | #endif |
713 | |
971 | |