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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 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 | 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; |
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… | |
49 | img->ref->ours = false; |
292 | img->ref->ours = false; |
50 | |
293 | |
51 | return img; |
294 | return img; |
52 | } |
295 | } |
53 | |
296 | |
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297 | # if HAVE_PIXBUF |
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298 | |
54 | rxvt_img * |
299 | rxvt_img * |
55 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
300 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
56 | { |
301 | { |
57 | Display *dpy = s->display->dpy; |
302 | Display *dpy = s->dpy; |
58 | |
303 | |
59 | int width = gdk_pixbuf_get_width (pb); |
304 | int width = gdk_pixbuf_get_width (pb); |
60 | int height = gdk_pixbuf_get_height (pb); |
305 | int height = gdk_pixbuf_get_height (pb); |
61 | |
306 | |
62 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
307 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
63 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
308 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
64 | |
309 | |
65 | // since we require rgb24/argb32 formats from xrender we assume |
310 | // since we require rgb24/argb32 formats from xrender we assume |
66 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
311 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
67 | int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24; |
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68 | |
312 | |
69 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
313 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
70 | |
314 | |
71 | XImage xi; |
315 | XImage xi; |
72 | |
316 | |
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… | |
76 | xi.format = ZPixmap; |
320 | xi.format = ZPixmap; |
77 | xi.byte_order = ImageByteOrder (dpy); |
321 | xi.byte_order = ImageByteOrder (dpy); |
78 | xi.bitmap_unit = 0; //XY only, unused |
322 | xi.bitmap_unit = 0; //XY only, unused |
79 | xi.bitmap_bit_order = 0; //XY only, unused |
323 | xi.bitmap_bit_order = 0; //XY only, unused |
80 | xi.bitmap_pad = BitmapPad (dpy); |
324 | xi.bitmap_pad = BitmapPad (dpy); |
81 | xi.depth = depth; |
325 | xi.depth = 32; |
82 | xi.bytes_per_line = 0; |
326 | xi.bytes_per_line = 0; |
83 | xi.bits_per_pixel = 32; //Z only |
327 | xi.bits_per_pixel = 32; //Z only |
84 | xi.red_mask = 0x00000000; //Z only, unused |
328 | xi.red_mask = 0x00000000; //Z only, unused |
85 | xi.green_mask = 0x00000000; //Z only, unused |
329 | xi.green_mask = 0x00000000; //Z only, unused |
86 | xi.blue_mask = 0x00000000; //Z only, unused |
330 | xi.blue_mask = 0x00000000; //Z only, unused |
… | |
… | |
95 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
339 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
96 | |
340 | |
97 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
341 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
98 | |
342 | |
99 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
343 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
100 | |
344 | bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb); |
101 | assert (3 + (depth == 32) == gdk_pixbuf_get_n_channels (pb)); |
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102 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
345 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
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346 | |
103 | char *line = xi.data; |
347 | char *line = xi.data; |
104 | |
348 | |
105 | for (int y = 0; y < height; y++) |
349 | for (int y = 0; y < height; y++) |
106 | { |
350 | { |
107 | unsigned char *src = row; |
351 | unsigned char *src = row; |
108 | uint32_t *dst = (uint32_t *)line; |
352 | uint32_t *dst = (uint32_t *)line; |
109 | |
353 | |
110 | if (depth == 24) |
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111 | for (int x = 0; x < width; x++) |
354 | for (int x = 0; x < width; x++) |
112 | { |
355 | { |
113 | uint8_t r = *src++; |
356 | uint8_t r = *src++; |
114 | uint8_t g = *src++; |
357 | uint8_t g = *src++; |
115 | uint8_t b = *src++; |
358 | uint8_t b = *src++; |
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359 | uint8_t a = *src; |
116 | |
360 | |
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361 | // this is done so it can be jump-free, but newer gcc's clone inner the loop |
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362 | a = pb_has_alpha ? a : 255; |
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363 | src += pb_has_alpha; |
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364 | |
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365 | r = (r * a + 127) / 255; |
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366 | g = (g * a + 127) / 255; |
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367 | b = (b * a + 127) / 255; |
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368 | |
117 | uint32_t v = (r << 16) | (g << 8) | b; |
369 | uint32_t v = (a << 24) | (r << 16) | (g << 8) | b; |
118 | |
370 | |
119 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
371 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
120 | v = ecb_bswap32 (v); |
372 | v = ecb_bswap32 (v); |
121 | |
373 | |
122 | *dst++ = v; |
374 | *dst++ = v; |
123 | } |
375 | } |
124 | else |
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125 | for (int x = 0; x < width; x++) |
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126 | { |
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127 | uint32_t v = *(uint32_t *)src; src += 4; |
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128 | |
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129 | if (ecb_big_endian ()) |
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130 | v = ecb_bswap32 (v); |
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131 | |
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132 | v = ecb_rotl32 (v, 8); // abgr to bgra |
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133 | |
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134 | if (!byte_order_mismatch) |
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135 | v = ecb_bswap32 (v); |
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136 | |
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137 | *dst++ = v; |
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138 | } |
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139 | |
376 | |
140 | row += rowstride; |
377 | row += rowstride; |
141 | line += xi.bytes_per_line; |
378 | line += xi.bytes_per_line; |
142 | } |
379 | } |
143 | |
380 | |
144 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height); |
381 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height); |
145 | img->alloc (); |
382 | img->alloc (); |
146 | |
383 | |
147 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
384 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
148 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
385 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
149 | XFreeGC (dpy, gc); |
386 | XFreeGC (dpy, gc); |
… | |
… | |
167 | g_object_unref (pb); |
404 | g_object_unref (pb); |
168 | |
405 | |
169 | return img; |
406 | return img; |
170 | } |
407 | } |
171 | |
408 | |
|
|
409 | # endif |
|
|
410 | |
172 | void |
411 | void |
173 | rxvt_img::destroy () |
412 | rxvt_img::destroy () |
174 | { |
413 | { |
175 | if (--ref->cnt) |
414 | if (--ref->cnt) |
176 | return; |
415 | return; |
177 | |
416 | |
178 | if (pm && ref->ours) |
417 | if (pm && ref->ours) |
179 | XFreePixmap (s->display->dpy, pm); |
418 | XFreePixmap (s->dpy, pm); |
180 | |
419 | |
181 | delete ref; |
420 | delete ref; |
182 | } |
421 | } |
183 | |
422 | |
184 | rxvt_img::~rxvt_img () |
423 | rxvt_img::~rxvt_img () |
… | |
… | |
187 | } |
426 | } |
188 | |
427 | |
189 | void |
428 | void |
190 | rxvt_img::alloc () |
429 | rxvt_img::alloc () |
191 | { |
430 | { |
192 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
431 | pm = XCreatePixmap (s->dpy, s->display->root, w, h, format->depth); |
193 | ref = new pixref (w, h); |
432 | ref = new pixref (w, h); |
194 | } |
433 | } |
195 | |
434 | |
|
|
435 | rxvt_img * |
|
|
436 | rxvt_img::new_empty () |
|
|
437 | { |
|
|
438 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
439 | img->alloc (); |
|
|
440 | |
|
|
441 | return img; |
|
|
442 | } |
|
|
443 | |
196 | Picture |
444 | Picture |
197 | rxvt_img::src_picture () |
445 | rxvt_img::picture () |
198 | { |
446 | { |
199 | Display *dpy = s->display->dpy; |
447 | Display *dpy = s->dpy; |
200 | |
448 | |
201 | XRenderPictureAttributes pa; |
449 | XRenderPictureAttributes pa; |
202 | pa.repeat = repeat; |
450 | pa.repeat = repeat; |
203 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
451 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
204 | |
452 | |
… | |
… | |
209 | rxvt_img::unshare () |
457 | rxvt_img::unshare () |
210 | { |
458 | { |
211 | if (ref->cnt == 1 && ref->ours) |
459 | if (ref->cnt == 1 && ref->ours) |
212 | return; |
460 | return; |
213 | |
461 | |
214 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
462 | Pixmap pm2 = XCreatePixmap (s->dpy, s->display->root, ref->w, ref->h, format->depth); |
215 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
463 | GC gc = XCreateGC (s->dpy, pm, 0, 0); |
216 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
464 | XCopyArea (s->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
217 | XFreeGC (s->display->dpy, gc); |
465 | XFreeGC (s->dpy, gc); |
218 | |
466 | |
219 | destroy (); |
467 | destroy (); |
220 | |
468 | |
221 | pm = pm2; |
469 | pm = pm2; |
222 | ref = new pixref (ref->w, ref->h); |
470 | ref = new pixref (ref->w, ref->h); |
223 | } |
471 | } |
224 | |
472 | |
225 | void |
473 | void |
|
|
474 | rxvt_img::fill (const rgba &c, int x, int y, int w, int h) |
|
|
475 | { |
|
|
476 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
|
|
477 | |
|
|
478 | Display *dpy = s->dpy; |
|
|
479 | Picture src = picture (); |
|
|
480 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, x, y, w, h); |
|
|
481 | XRenderFreePicture (dpy, src); |
|
|
482 | } |
|
|
483 | |
|
|
484 | void |
226 | rxvt_img::fill (const rxvt_color &c) |
485 | rxvt_img::fill (const rgba &c) |
227 | { |
486 | { |
228 | XGCValues gcv; |
487 | fill (c, 0, 0, w, h); |
229 | gcv.foreground = c; |
488 | } |
230 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
489 | |
231 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
490 | void |
232 | XFreeGC (s->display->dpy, gc); |
491 | rxvt_img::add_alpha () |
|
|
492 | { |
|
|
493 | if (format->direct.alphaMask) |
|
|
494 | return; |
|
|
495 | |
|
|
496 | composer cc (this, new rxvt_img (s, find_alpha_format_for (s->dpy, format), x, y, w, h, repeat)); |
|
|
497 | |
|
|
498 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
499 | |
|
|
500 | rxvt_img *img = cc; |
|
|
501 | |
|
|
502 | ::swap (img->ref, ref); |
|
|
503 | ::swap (img->pm , pm ); |
|
|
504 | |
|
|
505 | delete img; |
233 | } |
506 | } |
234 | |
507 | |
235 | static void |
508 | static void |
236 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
509 | get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params) |
237 | { |
510 | { |
238 | double sigma = radius / 2.0; |
511 | nv sigma = radius / 2.0; |
239 | double scale = sqrt (2.0 * M_PI) * sigma; |
512 | nv scale = sqrt (2.0 * M_PI) * sigma; |
240 | double sum = 0.0; |
513 | nv sum = 0.0; |
241 | |
514 | |
242 | for (int i = 0; i < width; i++) |
515 | for (int i = 0; i < width; i++) |
243 | { |
516 | { |
244 | double x = i - width / 2; |
517 | nv x = i - width / 2; |
245 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
518 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
246 | sum += kernel[i]; |
519 | sum += kernel[i]; |
247 | } |
520 | } |
248 | |
521 | |
249 | params[0] = XDoubleToFixed (width); |
522 | params[0] = XDoubleToFixed (width); |
… | |
… | |
257 | rxvt_img::blur (int rh, int rv) |
530 | rxvt_img::blur (int rh, int rv) |
258 | { |
531 | { |
259 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
532 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
260 | return clone (); |
533 | return clone (); |
261 | |
534 | |
262 | Display *dpy = s->display->dpy; |
535 | Display *dpy = s->dpy; |
263 | int size = max (rh, rv) * 2 + 1; |
536 | int size = max (rh, rv) * 2 + 1; |
264 | double *kernel = (double *)malloc (size * sizeof (double)); |
537 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
265 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
538 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
266 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
539 | rxvt_img *img = new_empty (); |
267 | img->alloc (); |
|
|
268 | |
540 | |
269 | XRenderPictureAttributes pa; |
541 | XRenderPictureAttributes pa; |
270 | pa.repeat = RepeatPad; |
542 | pa.repeat = RepeatPad; |
271 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
543 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
272 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
544 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
… | |
… | |
307 | w, h); |
579 | w, h); |
308 | } |
580 | } |
309 | |
581 | |
310 | free (kernel); |
582 | free (kernel); |
311 | free (params); |
583 | free (params); |
|
|
584 | |
312 | XRenderFreePicture (dpy, src); |
585 | XRenderFreePicture (dpy, src); |
313 | XRenderFreePicture (dpy, dst); |
586 | XRenderFreePicture (dpy, dst); |
314 | XRenderFreePicture (dpy, tmp); |
587 | XRenderFreePicture (dpy, tmp); |
315 | |
588 | |
316 | return img; |
589 | return img; |
317 | } |
590 | } |
318 | |
591 | |
319 | static Picture |
592 | rxvt_img * |
320 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) |
593 | rxvt_img::muladd (nv mul, nv add) |
321 | { |
594 | { |
322 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
595 | // STEP 1: double the image width, fill all odd columns with white (==1) |
323 | |
596 | |
324 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
597 | composer cc (this, new rxvt_img (s, format, 0, 0, w * 2, h, repeat)); |
325 | XRenderPictureAttributes pa; |
|
|
326 | pa.repeat = True; |
|
|
327 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
|
|
328 | |
598 | |
329 | 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 | }; |
330 | |
606 | |
331 | return mask; |
607 | XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0); |
332 | } |
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); |
333 | |
610 | |
334 | 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 |
335 | 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) |
336 | { |
652 | { |
337 | int32_t x = clamp (c, cl0, cl1); |
653 | int32_t x = clamp (c, cl0, cl1); |
338 | c -= x; |
654 | c -= x; |
339 | xc = x; |
655 | xc = x; |
340 | } |
656 | } |
341 | |
657 | |
342 | static bool |
658 | ecb_noinline static bool |
343 | 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) |
344 | { |
660 | { |
345 | extract (cl0, cl1, r, xr); |
661 | extract (cl0, cl1, r, xr); |
346 | extract (cl0, cl1, g, xg); |
662 | extract (cl0, cl1, g, xg); |
347 | extract (cl0, cl1, b, xb); |
663 | extract (cl0, cl1, b, xb); |
… | |
… | |
353 | void |
669 | void |
354 | 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) |
355 | { |
671 | { |
356 | unshare (); |
672 | unshare (); |
357 | |
673 | |
358 | Display *dpy = s->display->dpy; |
674 | Display *dpy = s->dpy; |
359 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
675 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
360 | |
676 | |
361 | // 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 |
362 | //while (r | g | b | a) |
678 | //while (r | g | b | a) |
363 | { |
679 | { |
… | |
… | |
378 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
694 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
379 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
695 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
380 | } |
696 | } |
381 | } |
697 | } |
382 | |
698 | |
383 | |
|
|
384 | XRenderFreePicture (dpy, dst); |
699 | XRenderFreePicture (dpy, dst); |
385 | } |
700 | } |
386 | |
701 | |
387 | void |
702 | void |
388 | 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) |
389 | { |
704 | { |
390 | if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
705 | if (r < 0 || g < 0 || b < 0 || a < 0) |
391 | { |
706 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
392 | rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n"); |
707 | |
393 | return; |
708 | // premultiply (yeah, these are not exact, sue me or fix it) |
|
|
709 | r = (r * (a >> 8)) >> 8; |
|
|
710 | g = (g * (a >> 8)) >> 8; |
|
|
711 | b = (b * (a >> 8)) >> 8; |
|
|
712 | |
|
|
713 | composer cc (this); |
|
|
714 | rxvt_img *img = cc; |
|
|
715 | img->fill (rgba (0, 0, 0, 0)); |
|
|
716 | |
|
|
717 | cc.mask (true); |
|
|
718 | |
|
|
719 | //TODO: this operator does not yet implement some useful contrast |
|
|
720 | while (r | g | b | a) |
394 | } |
721 | { |
|
|
722 | unsigned short xr, xg, xb, xa; |
|
|
723 | XRenderColor mask_c; |
395 | |
724 | |
|
|
725 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
726 | { |
|
|
727 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); |
|
|
728 | XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
729 | } |
|
|
730 | } |
|
|
731 | |
|
|
732 | ::swap (img->ref, ref); |
|
|
733 | ::swap (img->pm , pm ); |
|
|
734 | |
|
|
735 | delete img; |
|
|
736 | } |
|
|
737 | |
|
|
738 | void |
|
|
739 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
|
|
740 | { |
396 | unshare (); |
741 | unshare (); |
397 | |
742 | |
398 | Display *dpy = s->display->dpy; |
743 | composer cc (img, this); |
399 | Picture src = create_xrender_mask (dpy, pm, True); |
744 | |
400 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
745 | if (mask != 1.) |
|
|
746 | cc.mask (rgba (0, 0, 0, float_to_component (mask))); |
401 | |
747 | |
402 | XRenderColor mask_c; |
748 | XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
403 | mask_c.red = r; |
|
|
404 | mask_c.green = g; |
|
|
405 | mask_c.blue = b; |
|
|
406 | mask_c.alpha = a; |
|
|
407 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
|
|
408 | |
|
|
409 | XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
410 | |
|
|
411 | XRenderFreePicture (dpy, src); |
|
|
412 | XRenderFreePicture (dpy, dst); |
|
|
413 | } |
749 | } |
414 | |
750 | |
415 | rxvt_img * |
751 | rxvt_img * |
416 | rxvt_img::clone () |
752 | rxvt_img::clone () |
417 | { |
753 | { |
418 | return new rxvt_img (*this); |
754 | return new rxvt_img (*this); |
419 | } |
|
|
420 | |
|
|
421 | static XRenderPictFormat * |
|
|
422 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
|
|
423 | { |
|
|
424 | if (format->direct.alphaMask) |
|
|
425 | return format; // already has alpha |
|
|
426 | |
|
|
427 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
|
|
428 | if (format->type == PictTypeDirect) |
|
|
429 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
|
|
430 | if (f->direct.alphaMask |
|
|
431 | && f->type == PictTypeDirect |
|
|
432 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
|
|
433 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
|
|
434 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
|
|
435 | return f; |
|
|
436 | |
|
|
437 | // should be a very good fallback |
|
|
438 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
|
|
439 | } |
755 | } |
440 | |
756 | |
441 | rxvt_img * |
757 | rxvt_img * |
442 | rxvt_img::reify () |
758 | rxvt_img::reify () |
443 | { |
759 | { |
444 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
760 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
445 | return clone (); |
761 | return clone (); |
446 | |
|
|
447 | Display *dpy = s->display->dpy; |
|
|
448 | |
762 | |
449 | // add an alpha channel if... |
763 | // add an alpha channel if... |
450 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
764 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
451 | && (x || y) // we need one because of non-zero offset |
765 | && (x || y) // we need one because of non-zero offset |
452 | && repeat == RepeatNone; // and we have no good pixels to fill with |
766 | && repeat == RepeatNone; // and we have no good pixels to fill with |
453 | |
767 | |
454 | 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, |
455 | img->alloc (); |
769 | 0, 0, w, h, repeat)); |
456 | |
770 | |
457 | Picture src = src_picture (); |
771 | if (repeat == RepeatNone) |
458 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
459 | |
|
|
460 | if (alpha) |
|
|
461 | { |
772 | { |
462 | XRenderColor rc = { 0, 0, 0, 0 }; |
773 | XRenderColor rc = { 0, 0, 0, 0 }; |
463 | 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 |
464 | 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); |
465 | } |
776 | } |
466 | else |
777 | else |
467 | 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); |
468 | |
779 | |
469 | XRenderFreePicture (dpy, src); |
|
|
470 | XRenderFreePicture (dpy, dst); |
|
|
471 | |
|
|
472 | return img; |
780 | return cc; |
473 | } |
781 | } |
474 | |
782 | |
475 | rxvt_img * |
783 | rxvt_img * |
476 | 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) |
477 | { |
785 | { |
478 | rxvt_img *img = clone (); |
786 | rxvt_img *img = clone (); |
479 | |
787 | |
480 | img->x += x; |
788 | img->x -= x; |
481 | img->y += y; |
789 | img->y -= y; |
482 | |
790 | |
483 | if (w != width || h != height) |
791 | if (w != width || h != height) |
484 | { |
792 | { |
485 | img->w = width; |
793 | img->w = width; |
486 | img->h = height; |
794 | img->h = height; |
… | |
… | |
492 | |
800 | |
493 | return img; |
801 | return img; |
494 | } |
802 | } |
495 | |
803 | |
496 | rxvt_img * |
804 | rxvt_img * |
497 | rxvt_img::transform (int new_width, int new_height, double matrix[9]) |
805 | rxvt_img::transform (const nv matrix[3][3]) |
498 | { |
806 | { |
499 | rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat); |
807 | return transform (mat3x3 (&matrix[0][0])); |
500 | img->alloc (); |
808 | } |
501 | |
809 | |
502 | Display *dpy = s->display->dpy; |
810 | rxvt_img * |
503 | Picture src = src_picture (); |
811 | rxvt_img::transform (const nv *matrix) |
504 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
812 | { |
|
|
813 | mat3x3 m (matrix); |
|
|
814 | |
|
|
815 | // calculate new pixel bounding box coordinates |
|
|
816 | nv rmin[2], rmax[2]; |
|
|
817 | |
|
|
818 | for (int i = 0; i < 2; ++i) |
|
|
819 | { |
|
|
820 | nv v; |
|
|
821 | |
|
|
822 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
|
|
823 | v = m.apply1 (i, w+x, 0+y); 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); |
|
|
825 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
826 | } |
|
|
827 | |
|
|
828 | float sx = rmin [0] - x; |
|
|
829 | float sy = rmin [1] - y; |
|
|
830 | |
|
|
831 | // TODO: adjust matrix for subpixel accuracy |
|
|
832 | int nx = floor (rmin [0]); |
|
|
833 | int ny = floor (rmin [1]); |
|
|
834 | |
|
|
835 | int new_width = ceil (rmax [0] - rmin [0]); |
|
|
836 | int new_height = ceil (rmax [1] - rmin [1]); |
|
|
837 | |
|
|
838 | mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse (); |
|
|
839 | |
|
|
840 | composer cc (this, new rxvt_img (s, format, nx, ny, new_width, new_height, repeat)); |
505 | |
841 | |
506 | XTransform xfrm; |
842 | XTransform xfrm; |
507 | |
843 | |
508 | for (int i = 0; i < 3; ++i) |
844 | for (int i = 0; i < 3; ++i) |
509 | for (int j = 0; j < 3; ++j) |
845 | for (int j = 0; j < 3; ++j) |
510 | xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
846 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
511 | |
847 | |
512 | xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO |
|
|
513 | xfrm.matrix [1][2] -= XDoubleToFixed (y); |
|
|
514 | |
|
|
515 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
848 | XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0); |
516 | XRenderSetPictureTransform (dpy, src, &xfrm); |
849 | XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm); |
517 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 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); |
518 | |
851 | |
519 | XRenderFreePicture (dpy, src); |
|
|
520 | XRenderFreePicture (dpy, dst); |
|
|
521 | |
|
|
522 | return img; |
852 | return cc; |
523 | } |
853 | } |
524 | |
854 | |
525 | rxvt_img * |
855 | rxvt_img * |
526 | rxvt_img::scale (int new_width, int new_height) |
856 | rxvt_img::scale (int new_width, int new_height) |
527 | { |
857 | { |
528 | if (w == new_width && h == new_height) |
858 | if (w == new_width && h == new_height) |
529 | return clone (); |
859 | return clone (); |
530 | |
860 | |
531 | double matrix[9] = { |
|
|
532 | w / (double)new_width, 0, 0, |
|
|
533 | 0, h / (double)new_height, 0, |
|
|
534 | 0, 0, 1 |
|
|
535 | }; |
|
|
536 | |
|
|
537 | int old_repeat_mode = repeat; |
861 | int old_repeat_mode = repeat; |
538 | repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems |
862 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
539 | |
863 | |
540 | rxvt_img *img = transform (new_width, new_height, matrix); |
864 | rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h)); |
541 | |
865 | |
542 | repeat = old_repeat_mode; |
866 | repeat = old_repeat_mode; |
543 | img->repeat = repeat; |
867 | img->repeat = repeat; |
544 | |
868 | |
545 | return img; |
869 | return img; |
546 | } |
870 | } |
547 | |
871 | |
548 | rxvt_img * |
872 | rxvt_img * |
549 | rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) |
873 | rxvt_img::rotate (int cx, int cy, nv phi) |
550 | { |
874 | { |
551 | double s = sin (phi); |
875 | move (-cx, -cy); |
552 | double c = cos (phi); |
876 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
|
|
877 | move ( cx, cy); |
|
|
878 | img->move (cx, cy); |
553 | |
879 | |
554 | double matrix[9] = { |
880 | return img; |
555 | c, -s, -c * x + s * y + x, |
|
|
556 | s, c, -s * x - c * y + y, |
|
|
557 | 0, 0, 1 |
|
|
558 | }; |
|
|
559 | |
|
|
560 | return transform (new_width, new_height, matrix); |
|
|
561 | } |
881 | } |
562 | |
882 | |
563 | rxvt_img * |
883 | rxvt_img * |
564 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) |
884 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
565 | { |
885 | { |
566 | if (new_format == format) |
886 | if (new_format == format) |
567 | return clone (); |
887 | return clone (); |
568 | |
888 | |
569 | 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)); |
570 | img->alloc (); |
|
|
571 | |
890 | |
572 | Display *dpy = s->display->dpy; |
|
|
573 | Picture src = src_picture (); |
|
|
574 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
575 | int op = PictOpSrc; |
891 | int op = PictOpSrc; |
576 | |
892 | |
577 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
893 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
578 | { |
894 | { |
579 | // does it have to be that complicated |
895 | // does it have to be that complicated |
580 | rgba c; |
|
|
581 | bg.get (c); |
|
|
582 | |
|
|
583 | XRenderColor rc = { c.r, c.g, c.b, 0xffff }; |
896 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
584 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
897 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h); |
585 | |
898 | |
586 | op = PictOpOver; |
899 | op = PictOpOver; |
587 | } |
900 | } |
588 | |
901 | |
589 | 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); |
590 | |
903 | |
591 | XRenderFreePicture (dpy, src); |
904 | return cc; |
592 | 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 | } |
593 | |
949 | |
594 | return img; |
950 | return img; |
595 | } |
951 | } |
596 | |
952 | |
597 | rxvt_img * |
953 | rxvt_img * |
598 | rxvt_img::blend (rxvt_img *img, double factor) |
954 | rxvt_img::filter (const char *name, int nparams, nv *params) |
599 | { |
955 | { |
600 | rxvt_img *img2 = clone (); |
956 | composer cc (this); |
601 | Display *dpy = s->display->dpy; |
|
|
602 | Picture src = img->src_picture (); |
|
|
603 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
604 | Picture mask = create_xrender_mask (dpy, img->pm, False); |
|
|
605 | |
957 | |
606 | XRenderColor mask_c; |
958 | XFixed *xparams = rxvt_temp_buf<XFixed> (nparams); |
607 | |
959 | |
608 | mask_c.alpha = float_to_component (factor); |
960 | for (int i = 0; i < nparams; ++i) |
609 | mask_c.red = |
961 | xparams [i] = XDoubleToFixed (params [i]); |
610 | mask_c.green = |
|
|
611 | mask_c.blue = 0; |
|
|
612 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
613 | |
962 | |
|
|
963 | XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams); |
|
|
964 | |
614 | 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); |
615 | |
966 | |
616 | XRenderFreePicture (dpy, src); |
|
|
617 | XRenderFreePicture (dpy, dst); |
|
|
618 | XRenderFreePicture (dpy, mask); |
|
|
619 | |
|
|
620 | return img2; |
967 | return cc; |
621 | } |
968 | } |
622 | |
969 | |
623 | #endif |
970 | #endif |
624 | |
971 | |