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1 | /*----------------------------------------------------------------------* |
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2 | * File: rxvtimg.h |
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3 | *----------------------------------------------------------------------* |
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4 | * |
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5 | * All portions of code are copyright by their respective author/s. |
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6 | * Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de> |
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7 | * Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or modify |
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10 | * it under the terms of the GNU General Public License as published by |
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11 | * the Free Software Foundation; either version 2 of the License, or |
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12 | * (at your option) any later version. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this program; if not, write to the Free Software |
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21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | *---------------------------------------------------------------------*/ |
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23 | |
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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 |
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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 | |
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36 | struct mat3x3 |
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37 | { |
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38 | nv v[3][3]; |
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39 | |
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40 | mat3x3 () |
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41 | { |
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42 | } |
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43 | |
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44 | mat3x3 (const nv *matrix) |
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45 | { |
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46 | memcpy (v, matrix, sizeof (v)); |
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47 | } |
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48 | |
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49 | mat3x3 (nv v11, nv v12, nv v13, nv v21, nv v22, nv v23, nv v31, nv v32, nv v33) |
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50 | { |
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51 | v[0][0] = v11; v[0][1] = v12; v[0][2] = v13; |
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52 | v[1][0] = v21; v[1][1] = v22; v[1][2] = v23; |
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53 | v[2][0] = v31; v[2][1] = v32; v[2][2] = v33; |
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54 | } |
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55 | |
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56 | mat3x3 invert (); |
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57 | |
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58 | nv *operator [](int i) { return &v[i][0]; } |
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59 | const nv *operator [](int i) const { return &v[i][0]; } |
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60 | |
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61 | operator const nv * () const { return &v[0][0]; } |
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62 | operator nv * () { return &v[0][0]; } |
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63 | |
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64 | // quite inefficient, hopefully gcc pulls the w calc out of any loops |
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65 | nv apply1 (int i, nv x, nv y) |
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66 | { |
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67 | mat3x3 &m = *this; |
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68 | |
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69 | nv v = m[i][0] * x + m[i][1] * y + m[i][2]; |
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70 | nv w = m[2][0] * x + m[2][1] * y + m[2][2]; |
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71 | |
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72 | return v * (1. / w); |
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73 | } |
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74 | |
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75 | static mat3x3 translate (nv x, nv y); |
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76 | static mat3x3 scale (nv s, nv t); |
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77 | static mat3x3 rotate (nv phi); |
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78 | }; |
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79 | |
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80 | mat3x3 |
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81 | mat3x3::invert () |
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82 | { |
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83 | mat3x3 &m = *this; |
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84 | mat3x3 inv; |
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85 | |
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86 | nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2]; |
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87 | nv s1 = m[2][1] * m[0][2] - m[2][2] * m[0][1]; |
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88 | nv s2 = m[1][2] * m[0][1] - m[1][1] * m[0][2]; |
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89 | |
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90 | nv invdet = 1. / (m[0][0] * s0 + m[1][0] * s1 + m[2][0] * s2); |
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91 | |
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92 | inv[0][0] = invdet * s0; |
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93 | inv[0][1] = invdet * s1; |
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94 | inv[0][2] = invdet * s2; |
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95 | |
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96 | inv[1][0] = invdet * (m[2][0] * m[1][2] - m[2][2] * m[1][0]); |
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97 | inv[1][1] = invdet * (m[2][2] * m[0][0] - m[2][0] * m[0][2]); |
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98 | inv[1][2] = invdet * (m[1][0] * m[0][2] - m[1][2] * m[0][0]); |
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99 | |
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100 | inv[2][0] = invdet * (m[2][1] * m[1][0] - m[2][0] * m[1][1]); |
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101 | inv[2][1] = invdet * (m[2][0] * m[0][1] - m[2][1] * m[0][0]); |
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102 | inv[2][2] = invdet * (m[1][1] * m[0][0] - m[1][0] * m[0][1]); |
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103 | |
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104 | return inv; |
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105 | } |
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106 | |
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107 | static mat3x3 |
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108 | operator *(const mat3x3 &a, const mat3x3 &b) |
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109 | { |
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110 | mat3x3 r; |
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111 | |
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112 | for (int i = 0; i < 3; ++i) |
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113 | for (int j = 0; j < 3; ++j) |
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114 | r[i][j] = a[i][0] * b[0][j] |
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115 | + a[i][1] * b[1][j] |
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116 | + a[i][2] * b[2][j]; |
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117 | |
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118 | return r; |
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119 | } |
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120 | |
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121 | mat3x3 |
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122 | mat3x3::translate (nv x, nv y) |
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123 | { |
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124 | return mat3x3 ( |
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125 | 1, 0, x, |
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126 | 0, 1, y, |
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127 | 0, 0, 1 |
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128 | ); |
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129 | } |
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130 | |
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131 | mat3x3 |
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132 | mat3x3::scale (nv s, nv t) |
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133 | { |
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134 | return mat3x3 ( |
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135 | s, 0, 0, |
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136 | 0, t, 0, |
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137 | 0, 0, 1 |
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138 | ); |
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139 | } |
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140 | |
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141 | // clockwise |
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142 | mat3x3 |
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143 | mat3x3::rotate (nv phi) |
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144 | { |
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145 | nv s = sin (phi); |
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146 | nv c = cos (phi); |
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147 | |
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148 | return mat3x3 ( |
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149 | c, -s, 0, |
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150 | s, c, 0, |
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151 | 0, 0, 1 |
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152 | ); |
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153 | } |
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154 | |
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155 | } |
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156 | |
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157 | #if 0 |
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158 | struct pict |
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159 | { |
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160 | Display *dpy; |
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161 | Picture pic; |
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162 | |
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163 | operator Picture () const |
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164 | { |
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165 | return pic; |
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166 | } |
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167 | |
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168 | pict () |
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169 | : pic (0) |
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170 | { |
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171 | } |
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172 | |
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173 | pict (rxvt_img *img, XRenderPictFormat *format = 0) |
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174 | : dpy (img->s->display->dpy) |
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175 | { |
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176 | XRenderPictureAttributes pa; |
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177 | pa.repeat = img->repeat; |
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178 | pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa); |
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179 | } |
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180 | |
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181 | ~pict () |
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182 | { |
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183 | if (pic) |
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184 | XRenderFreePicture (dpy, pic); |
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185 | } |
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186 | }; |
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187 | #endif |
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188 | |
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189 | static XRenderPictFormat * |
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190 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
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191 | { |
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192 | if (format->direct.alphaMask) |
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193 | return format; // already has alpha |
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194 | |
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195 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
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196 | if (format->type == PictTypeDirect) |
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197 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
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198 | if (f->direct.alphaMask |
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199 | && f->type == PictTypeDirect |
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200 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
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201 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
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202 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
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203 | return f; |
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204 | |
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205 | // should be a very good fallback |
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206 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
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207 | } |
6 | |
208 | |
7 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
209 | 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), |
210 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
9 | pm(0), ref(0) |
211 | pm(0), ref(0) |
10 | { |
212 | { |
… | |
… | |
49 | img->ref->ours = false; |
251 | img->ref->ours = false; |
50 | |
252 | |
51 | return img; |
253 | return img; |
52 | } |
254 | } |
53 | |
255 | |
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256 | # if HAVE_PIXBUF |
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257 | |
54 | rxvt_img * |
258 | rxvt_img * |
55 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
259 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
56 | { |
260 | { |
57 | Display *dpy = s->display->dpy; |
261 | Display *dpy = s->display->dpy; |
58 | |
262 | |
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… | |
62 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
266 | 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"); |
267 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
64 | |
268 | |
65 | // since we require rgb24/argb32 formats from xrender we assume |
269 | // 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 |
270 | // 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 | |
271 | |
69 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
272 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
70 | |
273 | |
71 | XImage xi; |
274 | XImage xi; |
72 | |
275 | |
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… | |
76 | xi.format = ZPixmap; |
279 | xi.format = ZPixmap; |
77 | xi.byte_order = ImageByteOrder (dpy); |
280 | xi.byte_order = ImageByteOrder (dpy); |
78 | xi.bitmap_unit = 0; //XY only, unused |
281 | xi.bitmap_unit = 0; //XY only, unused |
79 | xi.bitmap_bit_order = 0; //XY only, unused |
282 | xi.bitmap_bit_order = 0; //XY only, unused |
80 | xi.bitmap_pad = BitmapPad (dpy); |
283 | xi.bitmap_pad = BitmapPad (dpy); |
81 | xi.depth = depth; |
284 | xi.depth = 32; |
82 | xi.bytes_per_line = 0; |
285 | xi.bytes_per_line = 0; |
83 | xi.bits_per_pixel = 32; //Z only |
286 | xi.bits_per_pixel = 32; //Z only |
84 | xi.red_mask = 0x00000000; //Z only, unused |
287 | xi.red_mask = 0x00000000; //Z only, unused |
85 | xi.green_mask = 0x00000000; //Z only, unused |
288 | xi.green_mask = 0x00000000; //Z only, unused |
86 | xi.blue_mask = 0x00000000; //Z only, unused |
289 | xi.blue_mask = 0x00000000; //Z only, unused |
… | |
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95 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
298 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
96 | |
299 | |
97 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
300 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
98 | |
301 | |
99 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
302 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
100 | |
303 | 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); |
304 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
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305 | |
103 | char *line = xi.data; |
306 | char *line = xi.data; |
104 | |
307 | |
105 | for (int y = 0; y < height; y++) |
308 | for (int y = 0; y < height; y++) |
106 | { |
309 | { |
107 | unsigned char *src = row; |
310 | unsigned char *src = row; |
108 | uint32_t *dst = (uint32_t *)line; |
311 | uint32_t *dst = (uint32_t *)line; |
109 | |
312 | |
110 | if (depth == 24) |
313 | if (!pb_has_alpha) |
111 | for (int x = 0; x < width; x++) |
314 | for (int x = 0; x < width; x++) |
112 | { |
315 | { |
113 | uint8_t r = *src++; |
316 | uint8_t r = *src++; |
114 | uint8_t g = *src++; |
317 | uint8_t g = *src++; |
115 | uint8_t b = *src++; |
318 | uint8_t b = *src++; |
116 | |
319 | |
117 | uint32_t v = (r << 16) | (g << 8) | b; |
320 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
118 | |
321 | |
119 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
322 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
120 | v = ecb_bswap32 (v); |
323 | v = ecb_bswap32 (v); |
121 | |
324 | |
122 | *dst++ = v; |
325 | *dst++ = v; |
… | |
… | |
139 | |
342 | |
140 | row += rowstride; |
343 | row += rowstride; |
141 | line += xi.bytes_per_line; |
344 | line += xi.bytes_per_line; |
142 | } |
345 | } |
143 | |
346 | |
144 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height); |
347 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height); |
145 | img->alloc (); |
348 | img->alloc (); |
146 | |
349 | |
147 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
350 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
148 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
351 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
149 | XFreeGC (dpy, gc); |
352 | XFreeGC (dpy, gc); |
… | |
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167 | g_object_unref (pb); |
370 | g_object_unref (pb); |
168 | |
371 | |
169 | return img; |
372 | return img; |
170 | } |
373 | } |
171 | |
374 | |
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375 | # endif |
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376 | |
172 | void |
377 | void |
173 | rxvt_img::destroy () |
378 | rxvt_img::destroy () |
174 | { |
379 | { |
175 | if (--ref->cnt) |
380 | if (--ref->cnt) |
176 | return; |
381 | return; |
… | |
… | |
192 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
397 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
193 | ref = new pixref (w, h); |
398 | ref = new pixref (w, h); |
194 | } |
399 | } |
195 | |
400 | |
196 | Picture |
401 | Picture |
197 | rxvt_img::src_picture () |
402 | rxvt_img::picture () |
198 | { |
403 | { |
199 | Display *dpy = s->display->dpy; |
404 | Display *dpy = s->display->dpy; |
200 | |
405 | |
201 | XRenderPictureAttributes pa; |
406 | XRenderPictureAttributes pa; |
202 | pa.repeat = repeat; |
407 | pa.repeat = repeat; |
… | |
… | |
221 | pm = pm2; |
426 | pm = pm2; |
222 | ref = new pixref (ref->w, ref->h); |
427 | ref = new pixref (ref->w, ref->h); |
223 | } |
428 | } |
224 | |
429 | |
225 | void |
430 | void |
226 | rxvt_img::fill (const rxvt_color &c) |
431 | rxvt_img::fill (const rgba &c) |
227 | { |
432 | { |
228 | XGCValues gcv; |
433 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
229 | gcv.foreground = c; |
434 | |
230 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
435 | Display *dpy = s->display->dpy; |
231 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
436 | Picture src = picture (); |
232 | XFreeGC (s->display->dpy, gc); |
437 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
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438 | XRenderFreePicture (dpy, src); |
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439 | } |
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440 | |
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441 | void |
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442 | rxvt_img::add_alpha () |
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443 | { |
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444 | if (format->direct.alphaMask) |
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445 | return; |
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446 | |
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447 | Display *dpy = s->display->dpy; |
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448 | |
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449 | rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat); |
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450 | img->alloc (); |
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451 | |
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452 | Picture src = picture (); |
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453 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
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454 | |
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455 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
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456 | |
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457 | XRenderFreePicture (dpy, src); |
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458 | XRenderFreePicture (dpy, dst); |
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459 | |
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460 | ::swap (img->ref, ref); |
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461 | ::swap (img->pm , pm ); |
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462 | |
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463 | delete img; |
233 | } |
464 | } |
234 | |
465 | |
235 | static void |
466 | static void |
236 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
467 | get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params) |
237 | { |
468 | { |
238 | double sigma = radius / 2.0; |
469 | nv sigma = radius / 2.0; |
239 | double scale = sqrt (2.0 * M_PI) * sigma; |
470 | nv scale = sqrt (2.0 * M_PI) * sigma; |
240 | double sum = 0.0; |
471 | nv sum = 0.0; |
241 | |
472 | |
242 | for (int i = 0; i < width; i++) |
473 | for (int i = 0; i < width; i++) |
243 | { |
474 | { |
244 | double x = i - width / 2; |
475 | nv x = i - width / 2; |
245 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
476 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
246 | sum += kernel[i]; |
477 | sum += kernel[i]; |
247 | } |
478 | } |
248 | |
479 | |
249 | params[0] = XDoubleToFixed (width); |
480 | params[0] = XDoubleToFixed (width); |
… | |
… | |
259 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
490 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
260 | return clone (); |
491 | return clone (); |
261 | |
492 | |
262 | Display *dpy = s->display->dpy; |
493 | Display *dpy = s->display->dpy; |
263 | int size = max (rh, rv) * 2 + 1; |
494 | int size = max (rh, rv) * 2 + 1; |
264 | double *kernel = (double *)malloc (size * sizeof (double)); |
495 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
265 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
496 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
266 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
497 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
267 | img->alloc (); |
498 | img->alloc (); |
268 | |
499 | |
269 | XRenderPictureAttributes pa; |
500 | XRenderPictureAttributes pa; |
… | |
… | |
307 | w, h); |
538 | w, h); |
308 | } |
539 | } |
309 | |
540 | |
310 | free (kernel); |
541 | free (kernel); |
311 | free (params); |
542 | free (params); |
|
|
543 | |
312 | XRenderFreePicture (dpy, src); |
544 | XRenderFreePicture (dpy, src); |
313 | XRenderFreePicture (dpy, dst); |
545 | XRenderFreePicture (dpy, dst); |
314 | XRenderFreePicture (dpy, tmp); |
546 | XRenderFreePicture (dpy, tmp); |
315 | |
547 | |
316 | return img; |
548 | return img; |
|
|
549 | } |
|
|
550 | |
|
|
551 | static Picture |
|
|
552 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
|
|
553 | { |
|
|
554 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
|
|
555 | |
|
|
556 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
|
|
557 | XRenderPictureAttributes pa; |
|
|
558 | pa.repeat = RepeatNormal; |
|
|
559 | pa.component_alpha = component_alpha; |
|
|
560 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
|
|
561 | |
|
|
562 | XFreePixmap (dpy, pixmap); |
|
|
563 | |
|
|
564 | return mask; |
317 | } |
565 | } |
318 | |
566 | |
319 | static void |
567 | static void |
320 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
568 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
321 | { |
569 | { |
… | |
… | |
363 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
611 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
364 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
612 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
365 | } |
613 | } |
366 | } |
614 | } |
367 | |
615 | |
368 | |
|
|
369 | XRenderFreePicture (dpy, dst); |
616 | XRenderFreePicture (dpy, dst); |
370 | } |
617 | } |
371 | |
618 | |
372 | void |
619 | void |
373 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
620 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
374 | { |
621 | { |
375 | if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
622 | if (r < 0 || g < 0 || b < 0 || a < 0) |
376 | { |
623 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
377 | rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n"); |
624 | |
378 | return; |
625 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
626 | img->alloc (); |
|
|
627 | img->fill (rgba (0, 0, 0, 0)); |
|
|
628 | |
|
|
629 | // premultiply (yeah, these are not exact, sue me or fix it) |
|
|
630 | r = (r * (a >> 8)) >> 8; |
|
|
631 | g = (g * (a >> 8)) >> 8; |
|
|
632 | b = (b * (a >> 8)) >> 8; |
|
|
633 | |
|
|
634 | Display *dpy = s->display->dpy; |
|
|
635 | |
|
|
636 | Picture src = picture (); |
|
|
637 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
638 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
|
|
639 | |
|
|
640 | //TODO: this operator does not yet implement some useful contrast |
|
|
641 | while (r | g | b | a) |
379 | } |
642 | { |
|
|
643 | unsigned short xr, xg, xb, xa; |
|
|
644 | XRenderColor mask_c; |
380 | |
645 | |
|
|
646 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
647 | { |
|
|
648 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
|
|
649 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
650 | } |
|
|
651 | } |
|
|
652 | |
|
|
653 | XRenderFreePicture (dpy, mul); |
|
|
654 | XRenderFreePicture (dpy, dst); |
|
|
655 | XRenderFreePicture (dpy, src); |
|
|
656 | |
|
|
657 | ::swap (img->ref, ref); |
|
|
658 | ::swap (img->pm , pm ); |
|
|
659 | |
|
|
660 | delete img; |
|
|
661 | } |
|
|
662 | |
|
|
663 | void |
|
|
664 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
|
|
665 | { |
381 | unshare (); |
666 | unshare (); |
382 | |
667 | |
383 | Display *dpy = s->display->dpy; |
668 | Display *dpy = s->display->dpy; |
384 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
669 | Picture src = img->picture (); |
385 | |
670 | Picture dst = picture (); |
386 | XRenderColor mask_c; |
671 | Picture mask_p = 0; |
387 | mask_c.red = r; |
672 | |
388 | mask_c.green = g; |
673 | if (mask != 1.) |
389 | mask_c.blue = b; |
674 | { |
390 | mask_c.alpha = a; |
675 | mask_p = create_xrender_mask (dpy, img->pm, False, False); |
|
|
676 | XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) }; |
391 | XRenderFillRectangle (dpy, PictOpMultiply, dst, &mask_c, 0, 0, w, h); |
677 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
678 | } |
392 | |
679 | |
|
|
680 | XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
|
|
681 | |
|
|
682 | XRenderFreePicture (dpy, src); |
393 | XRenderFreePicture (dpy, dst); |
683 | XRenderFreePicture (dpy, dst); |
|
|
684 | |
|
|
685 | if (mask_p) |
|
|
686 | XRenderFreePicture (dpy, mask_p); |
394 | } |
687 | } |
395 | |
688 | |
396 | rxvt_img * |
689 | rxvt_img * |
397 | rxvt_img::clone () |
690 | rxvt_img::clone () |
398 | { |
691 | { |
399 | return new rxvt_img (*this); |
692 | return new rxvt_img (*this); |
400 | } |
|
|
401 | |
|
|
402 | static XRenderPictFormat * |
|
|
403 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
|
|
404 | { |
|
|
405 | if (format->direct.alphaMask) |
|
|
406 | return format; // already has alpha |
|
|
407 | |
|
|
408 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
|
|
409 | if (format->type == PictTypeDirect) |
|
|
410 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
|
|
411 | if (f->direct.alphaMask |
|
|
412 | && f->type == PictTypeDirect |
|
|
413 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
|
|
414 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
|
|
415 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
|
|
416 | return f; |
|
|
417 | |
|
|
418 | // should be a very good fallback |
|
|
419 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
|
|
420 | } |
693 | } |
421 | |
694 | |
422 | rxvt_img * |
695 | rxvt_img * |
423 | rxvt_img::reify () |
696 | rxvt_img::reify () |
424 | { |
697 | { |
… | |
… | |
433 | && repeat == RepeatNone; // and we have no good pixels to fill with |
706 | && repeat == RepeatNone; // and we have no good pixels to fill with |
434 | |
707 | |
435 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
708 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
436 | img->alloc (); |
709 | img->alloc (); |
437 | |
710 | |
438 | Picture src = src_picture (); |
711 | Picture src = picture (); |
439 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
712 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
440 | |
713 | |
441 | if (alpha) |
714 | if (alpha) |
442 | { |
715 | { |
443 | XRenderColor rc = { 0, 0, 0, 0 }; |
716 | XRenderColor rc = { 0, 0, 0, 0 }; |
444 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
717 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
445 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h); |
718 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
446 | } |
719 | } |
447 | else |
720 | else |
448 | XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
721 | XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h); |
449 | |
722 | |
450 | XRenderFreePicture (dpy, src); |
723 | XRenderFreePicture (dpy, src); |
451 | XRenderFreePicture (dpy, dst); |
724 | XRenderFreePicture (dpy, dst); |
452 | |
725 | |
453 | return img; |
726 | return img; |
… | |
… | |
456 | rxvt_img * |
729 | rxvt_img * |
457 | rxvt_img::sub_rect (int x, int y, int width, int height) |
730 | rxvt_img::sub_rect (int x, int y, int width, int height) |
458 | { |
731 | { |
459 | rxvt_img *img = clone (); |
732 | rxvt_img *img = clone (); |
460 | |
733 | |
461 | img->x += x; |
734 | img->x -= x; |
462 | img->y += y; |
735 | img->y -= y; |
463 | |
736 | |
464 | if (w != width || h != height) |
737 | if (w != width || h != height) |
465 | { |
738 | { |
466 | img->w = width; |
739 | img->w = width; |
467 | img->h = height; |
740 | img->h = height; |
… | |
… | |
473 | |
746 | |
474 | return img; |
747 | return img; |
475 | } |
748 | } |
476 | |
749 | |
477 | rxvt_img * |
750 | rxvt_img * |
478 | rxvt_img::transform (int new_width, int new_height, double matrix[9]) |
751 | rxvt_img::transform (const nv matrix[3][3]) |
479 | { |
752 | { |
|
|
753 | return transform (mat3x3 (&matrix[0][0])); |
|
|
754 | } |
|
|
755 | |
|
|
756 | rxvt_img * |
|
|
757 | rxvt_img::transform (const nv *matrix) |
|
|
758 | { |
|
|
759 | mat3x3 m (matrix); |
|
|
760 | |
|
|
761 | // calculate new pixel bounding box coordinates |
|
|
762 | nv r[2], rmin[2], rmax[2]; |
|
|
763 | |
|
|
764 | for (int i = 0; i < 2; ++i) |
|
|
765 | { |
|
|
766 | nv v; |
|
|
767 | |
|
|
768 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v; |
|
|
769 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
770 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
771 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
772 | } |
|
|
773 | |
|
|
774 | float sx = rmin [0] - x; |
|
|
775 | float sy = rmin [1] - y; |
|
|
776 | |
|
|
777 | // TODO: adjust matrix for subpixel accuracy |
|
|
778 | int nx = floor (rmin [0]); |
|
|
779 | int ny = floor (rmin [1]); |
|
|
780 | |
|
|
781 | int new_width = ceil (rmax [0] - rmin [0]); |
|
|
782 | int new_height = ceil (rmax [1] - rmin [1]); |
|
|
783 | |
|
|
784 | m = mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y); |
|
|
785 | |
|
|
786 | mat3x3 inv = m.invert (); |
|
|
787 | |
480 | rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat); |
788 | rxvt_img *img = new rxvt_img (s, format, nx, ny, new_width, new_height, repeat); |
481 | img->alloc (); |
789 | img->alloc (); |
482 | |
790 | |
483 | Display *dpy = s->display->dpy; |
791 | Display *dpy = s->display->dpy; |
484 | Picture src = src_picture (); |
792 | Picture src = picture (); |
485 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
793 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
486 | |
794 | |
487 | XTransform xfrm; |
795 | XTransform xfrm; |
488 | |
796 | |
489 | for (int i = 0; i < 3; ++i) |
797 | for (int i = 0; i < 3; ++i) |
490 | for (int j = 0; j < 3; ++j) |
798 | for (int j = 0; j < 3; ++j) |
491 | xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
799 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
492 | |
|
|
493 | xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO |
|
|
494 | xfrm.matrix [1][2] -= XDoubleToFixed (y); |
|
|
495 | |
800 | |
496 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
801 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
497 | XRenderSetPictureTransform (dpy, src, &xfrm); |
802 | XRenderSetPictureTransform (dpy, src, &xfrm); |
498 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
803 | XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
499 | |
804 | |
500 | XRenderFreePicture (dpy, src); |
805 | XRenderFreePicture (dpy, src); |
501 | XRenderFreePicture (dpy, dst); |
806 | XRenderFreePicture (dpy, dst); |
502 | |
807 | |
503 | return img; |
808 | return img; |
… | |
… | |
507 | rxvt_img::scale (int new_width, int new_height) |
812 | rxvt_img::scale (int new_width, int new_height) |
508 | { |
813 | { |
509 | if (w == new_width && h == new_height) |
814 | if (w == new_width && h == new_height) |
510 | return clone (); |
815 | return clone (); |
511 | |
816 | |
512 | double matrix[9] = { |
|
|
513 | w / (double)new_width, 0, 0, |
|
|
514 | 0, h / (double)new_height, 0, |
|
|
515 | 0, 0, 1 |
|
|
516 | }; |
|
|
517 | |
|
|
518 | int old_repeat_mode = repeat; |
817 | int old_repeat_mode = repeat; |
519 | repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems |
818 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
520 | |
819 | |
521 | rxvt_img *img = transform (new_width, new_height, matrix); |
820 | rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h)); |
522 | |
821 | |
523 | repeat = old_repeat_mode; |
822 | repeat = old_repeat_mode; |
524 | img->repeat = repeat; |
823 | img->repeat = repeat; |
525 | |
824 | |
526 | return img; |
825 | return img; |
527 | } |
826 | } |
528 | |
827 | |
529 | rxvt_img * |
828 | rxvt_img * |
530 | rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) |
829 | rxvt_img::rotate (int cx, int cy, nv phi) |
531 | { |
830 | { |
532 | double s = sin (phi); |
831 | #if 0 |
533 | double c = cos (phi); |
|
|
534 | |
|
|
535 | double matrix[9] = { |
|
|
536 | c, -s, -c * x + s * y + x, |
832 | { c, -s, cx - c * cx + s * cy }, |
537 | s, c, -s * x - c * y + y, |
833 | { s, c, cy - s * cx - c * cy }, |
538 | 0, 0, 1 |
834 | { 0, 0, 1 } |
539 | }; |
835 | #endif |
540 | |
836 | |
541 | return transform (new_width, new_height, matrix); |
837 | move (-cx, -cy); |
542 | } |
838 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
|
|
839 | move ( cx, cy); |
|
|
840 | img->move (cx, cy); |
543 | |
841 | |
|
|
842 | return img; |
|
|
843 | } |
|
|
844 | |
544 | rxvt_img * |
845 | rxvt_img * |
545 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) |
846 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
546 | { |
847 | { |
547 | if (new_format == format) |
848 | if (new_format == format) |
548 | return clone (); |
849 | return clone (); |
549 | |
850 | |
550 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
851 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
551 | img->alloc (); |
852 | img->alloc (); |
552 | |
853 | |
553 | Display *dpy = s->display->dpy; |
854 | Display *dpy = s->display->dpy; |
554 | Picture src = src_picture (); |
855 | Picture src = picture (); |
555 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
856 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
556 | int op = PictOpSrc; |
857 | int op = PictOpSrc; |
557 | |
858 | |
558 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
859 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
559 | { |
860 | { |
560 | // does it have to be that complicated |
861 | // does it have to be that complicated |
561 | rgba c; |
|
|
562 | bg.get (c); |
|
|
563 | |
|
|
564 | XRenderColor rc = { c.r, c.g, c.b, 0xffff }; |
862 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
565 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
863 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
566 | |
864 | |
567 | op = PictOpOver; |
865 | op = PictOpOver; |
568 | } |
866 | } |
569 | |
867 | |
… | |
… | |
574 | |
872 | |
575 | return img; |
873 | return img; |
576 | } |
874 | } |
577 | |
875 | |
578 | rxvt_img * |
876 | rxvt_img * |
579 | rxvt_img::blend (rxvt_img *img, double factor) |
877 | rxvt_img::blend (rxvt_img *img, nv factor) |
580 | { |
878 | { |
581 | rxvt_img *img2 = clone (); |
879 | rxvt_img *img2 = clone (); |
582 | Display *dpy = s->display->dpy; |
880 | Display *dpy = s->display->dpy; |
583 | Picture src = img->src_picture (); |
881 | Picture src = img->picture (); |
584 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
882 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
585 | |
883 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
586 | Pixmap pixmap = XCreatePixmap (dpy, img->pm, 1, 1, 8); |
|
|
587 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, PictStandardA8); |
|
|
588 | XRenderPictureAttributes pa; |
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589 | pa.repeat = True; |
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590 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
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591 | XFreePixmap (dpy, pixmap); |
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592 | |
884 | |
593 | XRenderColor mask_c; |
885 | XRenderColor mask_c; |
594 | |
886 | |
595 | mask_c.alpha = float_to_component (factor); |
887 | mask_c.alpha = float_to_component (factor); |
596 | mask_c.red = |
888 | mask_c.red = |