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1 | /*----------------------------------------------------------------------* |
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2 | * File: rxvtimg.C |
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3 | *----------------------------------------------------------------------* |
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4 | * |
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5 | * All portions of code are copyright by their respective author/s. |
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6 | * Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de> |
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7 | * Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or modify |
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10 | * it under the terms of the GNU General Public License as published by |
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11 | * the Free Software Foundation; either version 3 of the License, or |
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12 | * (at your option) any later version. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this program; if not, write to the Free Software |
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21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | *---------------------------------------------------------------------*/ |
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23 | |
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24 | #include <string.h> |
1 | #include <math.h> |
25 | #include <math.h> |
2 | #include "../config.h" |
26 | #include "../config.h" |
3 | #include "rxvt.h" |
27 | #include "rxvt.h" |
4 | |
28 | |
5 | #if HAVE_IMG |
29 | #if HAVE_IMG |
6 | |
30 | |
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31 | typedef rxvt_img::nv nv; |
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32 | |
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33 | namespace |
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34 | { |
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35 | struct mat3x3 |
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36 | { |
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37 | nv v[3][3]; |
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38 | |
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39 | mat3x3 () |
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40 | { |
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41 | } |
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42 | |
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43 | mat3x3 (const nv *matrix) |
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44 | { |
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45 | memcpy (v, matrix, sizeof (v)); |
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46 | } |
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47 | |
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48 | mat3x3 (nv v11, nv v12, nv v13, nv v21, nv v22, nv v23, nv v31, nv v32, nv v33) |
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49 | { |
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50 | v[0][0] = v11; v[0][1] = v12; v[0][2] = v13; |
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51 | v[1][0] = v21; v[1][1] = v22; v[1][2] = v23; |
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52 | v[2][0] = v31; v[2][1] = v32; v[2][2] = v33; |
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53 | } |
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54 | |
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55 | mat3x3 inverse (); |
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56 | |
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57 | nv *operator [](int i) { return &v[i][0]; } |
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58 | const nv *operator [](int i) const { return &v[i][0]; } |
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59 | |
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60 | operator const nv * () const { return &v[0][0]; } |
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61 | operator nv * () { return &v[0][0]; } |
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62 | |
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63 | // quite inefficient, hopefully gcc pulls the w calc out of any loops |
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64 | nv apply1 (int i, nv x, nv y) |
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65 | { |
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66 | mat3x3 &m = *this; |
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67 | |
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68 | nv v = m[i][0] * x + m[i][1] * y + m[i][2]; |
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69 | nv w = m[2][0] * x + m[2][1] * y + m[2][2]; |
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70 | |
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71 | return v * (1. / w); |
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72 | } |
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73 | |
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74 | static mat3x3 translate (nv x, nv y); |
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75 | static mat3x3 scale (nv s, nv t); |
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76 | static mat3x3 rotate (nv phi); |
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77 | }; |
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78 | |
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79 | mat3x3 |
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80 | mat3x3::inverse () |
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81 | { |
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82 | mat3x3 &m = *this; |
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83 | mat3x3 inv; |
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84 | |
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85 | nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2]; |
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86 | nv s1 = m[2][1] * m[0][2] - m[2][2] * m[0][1]; |
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87 | nv s2 = m[1][2] * m[0][1] - m[1][1] * m[0][2]; |
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88 | |
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89 | nv invdet = 1. / (m[0][0] * s0 + m[1][0] * s1 + m[2][0] * s2); |
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90 | |
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91 | inv[0][0] = invdet * s0; |
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92 | inv[0][1] = invdet * s1; |
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93 | inv[0][2] = invdet * s2; |
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94 | |
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95 | inv[1][0] = invdet * (m[2][0] * m[1][2] - m[2][2] * m[1][0]); |
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96 | inv[1][1] = invdet * (m[2][2] * m[0][0] - m[2][0] * m[0][2]); |
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97 | inv[1][2] = invdet * (m[1][0] * m[0][2] - m[1][2] * m[0][0]); |
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98 | |
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99 | inv[2][0] = invdet * (m[2][1] * m[1][0] - m[2][0] * m[1][1]); |
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100 | inv[2][1] = invdet * (m[2][0] * m[0][1] - m[2][1] * m[0][0]); |
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101 | inv[2][2] = invdet * (m[1][1] * m[0][0] - m[1][0] * m[0][1]); |
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102 | |
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103 | return inv; |
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104 | } |
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105 | |
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106 | static mat3x3 |
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107 | operator *(const mat3x3 &a, const mat3x3 &b) |
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108 | { |
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109 | mat3x3 r; |
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110 | |
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111 | for (int i = 0; i < 3; ++i) |
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112 | for (int j = 0; j < 3; ++j) |
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113 | r[i][j] = a[i][0] * b[0][j] |
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114 | + a[i][1] * b[1][j] |
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115 | + a[i][2] * b[2][j]; |
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116 | |
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117 | return r; |
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118 | } |
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119 | |
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120 | mat3x3 |
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121 | mat3x3::translate (nv x, nv y) |
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122 | { |
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123 | return mat3x3 ( |
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124 | 1, 0, x, |
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125 | 0, 1, y, |
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126 | 0, 0, 1 |
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127 | ); |
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128 | } |
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129 | |
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130 | mat3x3 |
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131 | mat3x3::scale (nv s, nv t) |
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132 | { |
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133 | return mat3x3 ( |
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134 | s, 0, 0, |
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135 | 0, t, 0, |
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136 | 0, 0, 1 |
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137 | ); |
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138 | } |
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139 | |
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140 | // clockwise |
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141 | mat3x3 |
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142 | mat3x3::rotate (nv phi) |
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143 | { |
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144 | nv s = sin (phi); |
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145 | nv c = cos (phi); |
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146 | |
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147 | return mat3x3 ( |
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148 | c, -s, 0, |
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149 | s, c, 0, |
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150 | 0, 0, 1 |
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151 | ); |
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152 | } |
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153 | |
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154 | struct composer |
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155 | { |
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156 | rxvt_img *srcimg, *dstimg; |
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157 | Picture src, dst, msk; |
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158 | Display *dpy; |
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159 | |
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160 | ecb_noinline |
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161 | composer (rxvt_img *srcimg, rxvt_img *dstimg = 0) |
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162 | : srcimg (srcimg), dstimg (dstimg), msk (0) |
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163 | { |
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164 | if (!this->dstimg) |
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165 | this->dstimg = srcimg->new_empty (); |
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166 | else if (!this->dstimg->pm) // somewhat unsatisfying |
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167 | this->dstimg->alloc (); |
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168 | |
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169 | dpy = srcimg->d->dpy; |
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170 | src = srcimg->picture (); |
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171 | dst = this->dstimg->picture (); |
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172 | } |
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173 | |
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174 | ecb_noinline |
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175 | void mask (bool rgb = true, int w = 1, int h = 1) |
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176 | { |
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177 | Pixmap pixmap = XCreatePixmap (dpy, srcimg->pm, w, h, rgb ? 32 : 8); |
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178 | |
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179 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, rgb ? PictStandardARGB32 : PictStandardA8); |
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180 | XRenderPictureAttributes pa; |
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181 | pa.repeat = RepeatNormal; |
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182 | pa.component_alpha = rgb; |
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183 | msk = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
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184 | |
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185 | XFreePixmap (dpy, pixmap); |
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186 | |
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187 | ecb_assume (msk); |
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188 | } |
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189 | |
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190 | // CreateSolidFill creates a very very very weird picture |
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191 | void mask (const rgba &c) |
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192 | { |
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193 | // the casts are needed in C++11 (see 8.5.1) |
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194 | XRenderColor rc = { |
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195 | (unsigned short)(c.r * c.a / 65535), |
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196 | (unsigned short)(c.g * c.a / 65535), |
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197 | (unsigned short)(c.b * c.a / 65535), |
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198 | c.a |
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199 | }; |
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200 | msk = XRenderCreateSolidFill (dpy, &rc); |
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201 | ecb_assume (msk); |
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202 | } |
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203 | |
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204 | void fill (const rgba &c) |
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205 | { |
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206 | XRenderColor rc = { |
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207 | (unsigned short)(c.r * c.a / 65535), |
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208 | (unsigned short)(c.g * c.a / 65535), |
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209 | (unsigned short)(c.b * c.a / 65535), |
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210 | c.a |
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211 | }; |
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212 | |
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213 | XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1); |
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214 | } |
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215 | |
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216 | operator rxvt_img *() |
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217 | { |
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218 | return dstimg; |
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219 | } |
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220 | |
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221 | ecb_noinline |
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222 | ~composer () |
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223 | { |
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224 | XRenderFreePicture (dpy, src); |
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225 | XRenderFreePicture (dpy, dst); |
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226 | if (msk) XRenderFreePicture (dpy, msk); |
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227 | } |
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228 | }; |
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229 | } |
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230 | |
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231 | static XRenderPictFormat * |
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232 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
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233 | { |
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234 | if (format->direct.alphaMask) |
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235 | return format; // already has alpha |
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236 | |
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237 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
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238 | if (format->type == PictTypeDirect) |
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239 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
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240 | if (f->direct.alphaMask |
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241 | && f->type == PictTypeDirect |
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242 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
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243 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
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244 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
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245 | return f; |
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246 | |
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247 | // should be a very good fallback |
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248 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
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249 | } |
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250 | |
7 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
251 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
8 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
252 | : d(screen->display), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
9 | pm(0), ref(0) |
253 | pm(0), ref(0) |
10 | { |
254 | { |
11 | } |
255 | } |
12 | |
256 | |
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257 | rxvt_img::rxvt_img (rxvt_display *display, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
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258 | : d(display), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
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259 | pm(0), ref(0) |
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260 | { |
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261 | } |
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262 | |
13 | rxvt_img::rxvt_img (const rxvt_img &img) |
263 | rxvt_img::rxvt_img (const rxvt_img &img) |
14 | : s(img.s), x(img.x), y(img.y), w(img.w), h(img.h), format(img.format), repeat(img.repeat), pm(img.pm), ref(img.ref) |
264 | : d(img.d), x(img.x), y(img.y), w(img.w), h(img.h), format(img.format), repeat(img.repeat), pm(img.pm), ref(img.ref) |
15 | { |
265 | { |
16 | ++ref->cnt; |
266 | ++ref->cnt; |
17 | } |
267 | } |
18 | |
268 | |
19 | rxvt_img * |
269 | rxvt_img * |
20 | rxvt_img::new_from_root (rxvt_screen *s) |
270 | rxvt_img::new_from_root (rxvt_screen *s) |
21 | { |
271 | { |
22 | Display *dpy = s->display->dpy; |
272 | Display *dpy = s->dpy; |
23 | unsigned int root_pm_w, root_pm_h; |
273 | unsigned int root_pm_w, root_pm_h; |
24 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
274 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]); |
25 | if (root_pixmap == None) |
275 | if (root_pixmap == None) |
26 | root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
276 | root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]); |
27 | |
277 | |
28 | if (root_pixmap == None) |
278 | if (root_pixmap == None) |
29 | return 0; |
279 | return 0; |
30 | |
280 | |
31 | Window wdummy; |
281 | Window wdummy; |
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… | |
50 | |
300 | |
51 | return img; |
301 | return img; |
52 | } |
302 | } |
53 | |
303 | |
54 | # if HAVE_PIXBUF |
304 | # if HAVE_PIXBUF |
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305 | |
55 | rxvt_img * |
306 | rxvt_img * |
56 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
307 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
57 | { |
308 | { |
58 | Display *dpy = s->display->dpy; |
309 | Display *dpy = s->dpy; |
59 | |
310 | |
60 | int width = gdk_pixbuf_get_width (pb); |
311 | int width = gdk_pixbuf_get_width (pb); |
61 | int height = gdk_pixbuf_get_height (pb); |
312 | int height = gdk_pixbuf_get_height (pb); |
62 | |
313 | |
63 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
314 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
… | |
… | |
105 | for (int y = 0; y < height; y++) |
356 | for (int y = 0; y < height; y++) |
106 | { |
357 | { |
107 | unsigned char *src = row; |
358 | unsigned char *src = row; |
108 | uint32_t *dst = (uint32_t *)line; |
359 | uint32_t *dst = (uint32_t *)line; |
109 | |
360 | |
110 | if (!pb_has_alpha) |
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111 | for (int x = 0; x < width; x++) |
361 | for (int x = 0; x < width; x++) |
112 | { |
362 | { |
113 | uint8_t r = *src++; |
363 | uint8_t r = *src++; |
114 | uint8_t g = *src++; |
364 | uint8_t g = *src++; |
115 | uint8_t b = *src++; |
365 | uint8_t b = *src++; |
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366 | uint8_t a = *src; |
116 | |
367 | |
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368 | // this is done so it can be jump-free, but newer gcc's clone inner the loop |
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369 | a = pb_has_alpha ? a : 255; |
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370 | src += pb_has_alpha; |
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371 | |
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372 | r = (r * a + 127) / 255; |
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373 | g = (g * a + 127) / 255; |
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374 | b = (b * a + 127) / 255; |
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375 | |
117 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
376 | uint32_t v = (a << 24) | (r << 16) | (g << 8) | b; |
118 | |
377 | |
119 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
378 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
120 | v = ecb_bswap32 (v); |
379 | v = ecb_bswap32 (v); |
121 | |
380 | |
122 | *dst++ = v; |
381 | *dst++ = v; |
123 | } |
382 | } |
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 | |
383 | |
140 | row += rowstride; |
384 | row += rowstride; |
141 | line += xi.bytes_per_line; |
385 | line += xi.bytes_per_line; |
142 | } |
386 | } |
143 | |
387 | |
… | |
… | |
158 | { |
402 | { |
159 | GError *err = 0; |
403 | GError *err = 0; |
160 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
404 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
161 | |
405 | |
162 | if (!pb) |
406 | if (!pb) |
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407 | try |
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408 | { |
163 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
409 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
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410 | } |
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411 | catch (...) |
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412 | { |
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413 | g_error_free (err); |
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414 | throw; |
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415 | } |
164 | |
416 | |
165 | rxvt_img *img = new_from_pixbuf (s, pb); |
417 | rxvt_img *img = new_from_pixbuf (s, pb); |
166 | |
418 | |
167 | g_object_unref (pb); |
419 | g_object_unref (pb); |
168 | |
420 | |
169 | return img; |
421 | return img; |
170 | } |
422 | } |
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423 | |
171 | # endif |
424 | # endif |
172 | |
425 | |
173 | void |
426 | void |
174 | rxvt_img::destroy () |
427 | rxvt_img::destroy () |
175 | { |
428 | { |
176 | if (--ref->cnt) |
429 | if (--ref->cnt) |
177 | return; |
430 | return; |
178 | |
431 | |
179 | if (pm && ref->ours) |
432 | if (pm && ref->ours) |
180 | XFreePixmap (s->display->dpy, pm); |
433 | XFreePixmap (d->dpy, pm); |
181 | |
434 | |
182 | delete ref; |
435 | delete ref; |
183 | } |
436 | } |
184 | |
437 | |
185 | rxvt_img::~rxvt_img () |
438 | rxvt_img::~rxvt_img () |
… | |
… | |
188 | } |
441 | } |
189 | |
442 | |
190 | void |
443 | void |
191 | rxvt_img::alloc () |
444 | rxvt_img::alloc () |
192 | { |
445 | { |
193 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
446 | pm = XCreatePixmap (d->dpy, d->root, w, h, format->depth); |
194 | ref = new pixref (w, h); |
447 | ref = new pixref (w, h); |
195 | } |
448 | } |
196 | |
449 | |
|
|
450 | rxvt_img * |
|
|
451 | rxvt_img::new_empty () |
|
|
452 | { |
|
|
453 | rxvt_img *img = new rxvt_img (d, format, x, y, w, h, repeat); |
|
|
454 | img->alloc (); |
|
|
455 | |
|
|
456 | return img; |
|
|
457 | } |
|
|
458 | |
197 | Picture |
459 | Picture |
198 | rxvt_img::src_picture () |
460 | rxvt_img::picture () |
199 | { |
461 | { |
200 | Display *dpy = s->display->dpy; |
462 | Display *dpy = d->dpy; |
201 | |
463 | |
202 | XRenderPictureAttributes pa; |
464 | XRenderPictureAttributes pa; |
203 | pa.repeat = repeat; |
465 | pa.repeat = repeat; |
204 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
466 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
205 | |
467 | |
… | |
… | |
210 | rxvt_img::unshare () |
472 | rxvt_img::unshare () |
211 | { |
473 | { |
212 | if (ref->cnt == 1 && ref->ours) |
474 | if (ref->cnt == 1 && ref->ours) |
213 | return; |
475 | return; |
214 | |
476 | |
215 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
477 | Pixmap pm2 = XCreatePixmap (d->dpy, d->root, ref->w, ref->h, format->depth); |
216 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
478 | GC gc = XCreateGC (d->dpy, pm, 0, 0); |
217 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
479 | XCopyArea (d->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
218 | XFreeGC (s->display->dpy, gc); |
480 | XFreeGC (d->dpy, gc); |
219 | |
481 | |
220 | destroy (); |
482 | destroy (); |
221 | |
483 | |
222 | pm = pm2; |
484 | pm = pm2; |
223 | ref = new pixref (ref->w, ref->h); |
485 | ref = new pixref (ref->w, ref->h); |
224 | } |
486 | } |
225 | |
487 | |
226 | void |
488 | void |
|
|
489 | rxvt_img::fill (const rgba &c, int x, int y, int w, int h) |
|
|
490 | { |
|
|
491 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
|
|
492 | |
|
|
493 | Display *dpy = d->dpy; |
|
|
494 | Picture src = picture (); |
|
|
495 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, x, y, w, h); |
|
|
496 | XRenderFreePicture (dpy, src); |
|
|
497 | } |
|
|
498 | |
|
|
499 | void |
227 | rxvt_img::fill (const rxvt_color &c) |
500 | rxvt_img::fill (const rgba &c) |
228 | { |
501 | { |
229 | XGCValues gcv; |
502 | fill (c, 0, 0, w, h); |
230 | gcv.foreground = c; |
503 | } |
231 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
504 | |
232 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
505 | void |
233 | XFreeGC (s->display->dpy, gc); |
506 | rxvt_img::add_alpha () |
|
|
507 | { |
|
|
508 | if (format->direct.alphaMask) |
|
|
509 | return; |
|
|
510 | |
|
|
511 | composer cc (this, new rxvt_img (d, find_alpha_format_for (d->dpy, format), x, y, w, h, repeat)); |
|
|
512 | |
|
|
513 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
514 | |
|
|
515 | rxvt_img *img = cc; |
|
|
516 | |
|
|
517 | ::swap (img->ref, ref); |
|
|
518 | ::swap (img->pm , pm ); |
|
|
519 | |
|
|
520 | delete img; |
234 | } |
521 | } |
235 | |
522 | |
236 | static void |
523 | static void |
237 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
524 | get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params) |
238 | { |
525 | { |
239 | double sigma = radius / 2.0; |
526 | nv sigma = radius / 2.0; |
240 | double scale = sqrt (2.0 * M_PI) * sigma; |
527 | nv scale = sqrt (2.0 * M_PI) * sigma; |
241 | double sum = 0.0; |
528 | nv sum = 0.0; |
242 | |
529 | |
243 | for (int i = 0; i < width; i++) |
530 | for (int i = 0; i < width; i++) |
244 | { |
531 | { |
245 | double x = i - width / 2; |
532 | nv x = i - width / 2; |
246 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
533 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
247 | sum += kernel[i]; |
534 | sum += kernel[i]; |
248 | } |
535 | } |
249 | |
536 | |
250 | params[0] = XDoubleToFixed (width); |
537 | params[0] = XDoubleToFixed (width); |
… | |
… | |
255 | } |
542 | } |
256 | |
543 | |
257 | rxvt_img * |
544 | rxvt_img * |
258 | rxvt_img::blur (int rh, int rv) |
545 | rxvt_img::blur (int rh, int rv) |
259 | { |
546 | { |
260 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
547 | if (!(d->flags & DISPLAY_HAS_RENDER_CONV)) |
261 | return clone (); |
548 | return clone (); |
262 | |
549 | |
263 | Display *dpy = s->display->dpy; |
550 | Display *dpy = d->dpy; |
264 | int size = max (rh, rv) * 2 + 1; |
551 | int size = max (rh, rv) * 2 + 1; |
265 | double *kernel = (double *)malloc (size * sizeof (double)); |
552 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
266 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
553 | XFixed *params = rxvt_temp_buf<XFixed> (size + 2); |
267 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
554 | rxvt_img *img = new_empty (); |
268 | img->alloc (); |
|
|
269 | |
555 | |
270 | XRenderPictureAttributes pa; |
556 | XRenderPictureAttributes pa; |
271 | pa.repeat = RepeatPad; |
557 | pa.repeat = RepeatPad; |
272 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
558 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
273 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
559 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
… | |
… | |
307 | 0, 0, |
593 | 0, 0, |
308 | w, h); |
594 | w, h); |
309 | } |
595 | } |
310 | |
596 | |
311 | free (kernel); |
597 | free (kernel); |
312 | free (params); |
598 | |
313 | XRenderFreePicture (dpy, src); |
599 | XRenderFreePicture (dpy, src); |
314 | XRenderFreePicture (dpy, dst); |
600 | XRenderFreePicture (dpy, dst); |
315 | XRenderFreePicture (dpy, tmp); |
601 | XRenderFreePicture (dpy, tmp); |
316 | |
602 | |
317 | return img; |
603 | return img; |
318 | } |
604 | } |
319 | |
605 | |
320 | static Picture |
606 | rxvt_img * |
321 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
607 | rxvt_img::muladd (nv mul, nv add) |
322 | { |
608 | { |
323 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
609 | // STEP 1: double the image width, fill all odd columns with white (==1) |
324 | |
610 | |
325 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
611 | rxvt_img *img = new rxvt_img (d, format, 0, 0, w * 2, h, repeat); |
326 | XRenderPictureAttributes pa; |
612 | composer cc (this, img); |
327 | pa.repeat = RepeatNormal; |
|
|
328 | pa.component_alpha = component_alpha; |
|
|
329 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
|
|
330 | |
613 | |
331 | XFreePixmap (dpy, pixmap); |
614 | // why the hell does XRenderSetPictureTransform want a writable matrix :( |
|
|
615 | // that keeps us from just static const'ing this matrix. |
|
|
616 | XTransform h_double = { |
|
|
617 | 0x08000, 0, 0, |
|
|
618 | 0, 0x10000, 0, |
|
|
619 | 0, 0, 0x10000 |
|
|
620 | }; |
332 | |
621 | |
333 | return mask; |
622 | XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0); |
334 | } |
623 | XRenderSetPictureTransform (cc.dpy, cc.src, &h_double); |
|
|
624 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
335 | |
625 | |
336 | static void |
626 | cc.mask (false, 2, 1); |
|
|
627 | |
|
|
628 | static const XRenderColor c0 = { 0, 0, 0, 0 }; |
|
|
629 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c0, 0, 0, 1, 1); |
|
|
630 | static const XRenderColor c1 = { 65535, 65535, 65535, 65535 }; |
|
|
631 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c1, 1, 0, 1, 1); |
|
|
632 | |
|
|
633 | Picture white = XRenderCreateSolidFill (cc.dpy, &c1); |
|
|
634 | |
|
|
635 | XRenderComposite (cc.dpy, PictOpOver, white, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
636 | |
|
|
637 | XRenderFreePicture (cc.dpy, white); |
|
|
638 | |
|
|
639 | // STEP 2: convolve the image with a 3x1 filter |
|
|
640 | // a 2x1 filter would obviously suffice, but given the total lack of specification |
|
|
641 | // for xrender, I expect different xrender implementations to randomly diverge. |
|
|
642 | // we also halve the image, and hope for the best (again, for lack of specs). |
|
|
643 | composer cc2 (img); |
|
|
644 | |
|
|
645 | XFixed kernel [] = { |
|
|
646 | XDoubleToFixed (3), XDoubleToFixed (1), |
|
|
647 | XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add) |
|
|
648 | }; |
|
|
649 | |
|
|
650 | XTransform h_halve = { |
|
|
651 | 0x20000, 0, 0, |
|
|
652 | 0, 0x10000, 0, |
|
|
653 | 0, 0, 0x10000 |
|
|
654 | }; |
|
|
655 | |
|
|
656 | XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0); |
|
|
657 | XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve); |
|
|
658 | XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel)); |
|
|
659 | |
|
|
660 | XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
661 | |
|
|
662 | delete img; |
|
|
663 | |
|
|
664 | return cc2; |
|
|
665 | } |
|
|
666 | |
|
|
667 | ecb_noinline static void |
337 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
668 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
338 | { |
669 | { |
339 | int32_t x = clamp (c, cl0, cl1); |
670 | int32_t x = clamp (c, cl0, cl1); |
340 | c -= x; |
671 | c -= x; |
341 | xc = x; |
672 | xc = x; |
342 | } |
673 | } |
343 | |
674 | |
344 | static bool |
675 | ecb_noinline static bool |
345 | 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) |
676 | 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) |
346 | { |
677 | { |
347 | extract (cl0, cl1, r, xr); |
678 | extract (cl0, cl1, r, xr); |
348 | extract (cl0, cl1, g, xg); |
679 | extract (cl0, cl1, g, xg); |
349 | extract (cl0, cl1, b, xb); |
680 | extract (cl0, cl1, b, xb); |
… | |
… | |
355 | void |
686 | void |
356 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
687 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
357 | { |
688 | { |
358 | unshare (); |
689 | unshare (); |
359 | |
690 | |
360 | Display *dpy = s->display->dpy; |
691 | Display *dpy = d->dpy; |
361 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
692 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
362 | |
693 | |
363 | // loop should not be needed for brightness, as only -1..1 makes sense |
694 | // loop should not be needed for brightness, as only -1..1 makes sense |
364 | //while (r | g | b | a) |
695 | //while (r | g | b | a) |
365 | { |
696 | { |
366 | unsigned short xr, xg, xb, xa; |
|
|
367 | XRenderColor mask_c; |
697 | XRenderColor mask_c; |
368 | |
698 | |
369 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
699 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
370 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
700 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
371 | |
701 | |
… | |
… | |
389 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
719 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
390 | { |
720 | { |
391 | if (r < 0 || g < 0 || b < 0 || a < 0) |
721 | if (r < 0 || g < 0 || b < 0 || a < 0) |
392 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
722 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
393 | |
723 | |
394 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
395 | img->alloc (); |
|
|
396 | |
|
|
397 | { |
|
|
398 | rxvt_color empty; |
|
|
399 | empty.set (s, rgba (0, 0, 0, 0)); |
|
|
400 | img->fill (empty); |
|
|
401 | } |
|
|
402 | |
|
|
403 | // premultiply (yeah, these are not exact, sue me or fix it) |
724 | // premultiply (yeah, these are not exact, sue me or fix it) |
404 | r = (r * (a >> 8)) >> 8; |
725 | r = (r * (a >> 8)) >> 8; |
405 | g = (g * (a >> 8)) >> 8; |
726 | g = (g * (a >> 8)) >> 8; |
406 | b = (b * (a >> 8)) >> 8; |
727 | b = (b * (a >> 8)) >> 8; |
407 | |
728 | |
408 | Display *dpy = s->display->dpy; |
729 | composer cc (this); |
|
|
730 | rxvt_img *img = cc; |
|
|
731 | img->fill (rgba (0, 0, 0, 0)); |
409 | |
732 | |
410 | Picture src = src_picture (); |
733 | cc.mask (true); |
411 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
412 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
|
|
413 | |
734 | |
414 | //TODO: this operator does not yet implement some useful contrast |
735 | //TODO: this operator does not yet implement some useful contrast |
415 | while (r | g | b | a) |
736 | while (r | g | b | a) |
416 | { |
737 | { |
417 | unsigned short xr, xg, xb, xa; |
|
|
418 | XRenderColor mask_c; |
738 | XRenderColor mask_c; |
419 | |
739 | |
420 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
740 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
421 | { |
741 | { |
422 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
742 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); |
423 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
743 | XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
424 | } |
744 | } |
425 | } |
745 | } |
426 | |
|
|
427 | XRenderFreePicture (dpy, mul); |
|
|
428 | XRenderFreePicture (dpy, dst); |
|
|
429 | XRenderFreePicture (dpy, src); |
|
|
430 | |
746 | |
431 | ::swap (img->ref, ref); |
747 | ::swap (img->ref, ref); |
432 | ::swap (img->pm , pm ); |
748 | ::swap (img->pm , pm ); |
433 | |
749 | |
434 | delete img; |
750 | delete img; |
435 | } |
751 | } |
436 | |
752 | |
|
|
753 | void |
|
|
754 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
|
|
755 | { |
|
|
756 | unshare (); |
|
|
757 | |
|
|
758 | composer cc (img, this); |
|
|
759 | |
|
|
760 | if (mask != 1.) |
|
|
761 | cc.mask (rgba (0, 0, 0, float_to_component (mask))); |
|
|
762 | |
|
|
763 | XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
|
|
764 | } |
|
|
765 | |
437 | rxvt_img * |
766 | rxvt_img * |
438 | rxvt_img::clone () |
767 | rxvt_img::clone () |
439 | { |
768 | { |
440 | return new rxvt_img (*this); |
769 | return new rxvt_img (*this); |
441 | } |
|
|
442 | |
|
|
443 | static XRenderPictFormat * |
|
|
444 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
|
|
445 | { |
|
|
446 | if (format->direct.alphaMask) |
|
|
447 | return format; // already has alpha |
|
|
448 | |
|
|
449 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
|
|
450 | if (format->type == PictTypeDirect) |
|
|
451 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
|
|
452 | if (f->direct.alphaMask |
|
|
453 | && f->type == PictTypeDirect |
|
|
454 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
|
|
455 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
|
|
456 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
|
|
457 | return f; |
|
|
458 | |
|
|
459 | // should be a very good fallback |
|
|
460 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
|
|
461 | } |
770 | } |
462 | |
771 | |
463 | rxvt_img * |
772 | rxvt_img * |
464 | rxvt_img::reify () |
773 | rxvt_img::reify () |
465 | { |
774 | { |
466 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
775 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
467 | return clone (); |
776 | return clone (); |
468 | |
|
|
469 | Display *dpy = s->display->dpy; |
|
|
470 | |
777 | |
471 | // add an alpha channel if... |
778 | // add an alpha channel if... |
472 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
779 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
473 | && (x || y) // we need one because of non-zero offset |
780 | && (x || y) // we need one because of non-zero offset |
474 | && repeat == RepeatNone; // and we have no good pixels to fill with |
781 | && repeat == RepeatNone; // and we have no good pixels to fill with |
475 | |
782 | |
476 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
783 | composer cc (this, new rxvt_img (d, alpha ? find_alpha_format_for (d->dpy, format) : format, |
477 | img->alloc (); |
784 | 0, 0, w, h, repeat)); |
478 | |
785 | |
479 | Picture src = src_picture (); |
786 | if (repeat == RepeatNone) |
480 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
481 | |
|
|
482 | if (alpha) |
|
|
483 | { |
787 | { |
484 | XRenderColor rc = { 0, 0, 0, 0 }; |
788 | XRenderColor rc = { 0, 0, 0, 0 }; |
485 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
789 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
486 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h); |
790 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
487 | } |
791 | } |
488 | else |
792 | else |
489 | XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
793 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h); |
490 | |
794 | |
491 | XRenderFreePicture (dpy, src); |
|
|
492 | XRenderFreePicture (dpy, dst); |
|
|
493 | |
|
|
494 | return img; |
795 | return cc; |
495 | } |
796 | } |
496 | |
797 | |
497 | rxvt_img * |
798 | rxvt_img * |
498 | rxvt_img::sub_rect (int x, int y, int width, int height) |
799 | rxvt_img::sub_rect (int x, int y, int width, int height) |
499 | { |
800 | { |
500 | rxvt_img *img = clone (); |
801 | rxvt_img *img = clone (); |
501 | |
802 | |
502 | img->x += x; |
803 | img->x -= x; |
503 | img->y += y; |
804 | img->y -= y; |
504 | |
805 | |
505 | if (w != width || h != height) |
806 | if (w != width || h != height) |
506 | { |
807 | { |
507 | img->w = width; |
808 | img->w = width; |
508 | img->h = height; |
809 | img->h = height; |
… | |
… | |
514 | |
815 | |
515 | return img; |
816 | return img; |
516 | } |
817 | } |
517 | |
818 | |
518 | rxvt_img * |
819 | rxvt_img * |
519 | rxvt_img::transform (int new_width, int new_height, double matrix[9]) |
820 | rxvt_img::transform (const nv matrix[3][3]) |
520 | { |
821 | { |
521 | rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat); |
822 | return transform (mat3x3 (&matrix[0][0])); |
522 | img->alloc (); |
823 | } |
523 | |
824 | |
524 | Display *dpy = s->display->dpy; |
825 | rxvt_img * |
525 | Picture src = src_picture (); |
826 | rxvt_img::transform (const nv *matrix) |
526 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
827 | { |
|
|
828 | mat3x3 m (matrix); |
|
|
829 | |
|
|
830 | // calculate new pixel bounding box coordinates |
|
|
831 | nv rmin[2], rmax[2]; |
|
|
832 | |
|
|
833 | for (int i = 0; i < 2; ++i) |
|
|
834 | { |
|
|
835 | nv v; |
|
|
836 | |
|
|
837 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
|
|
838 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
839 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
840 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
841 | } |
|
|
842 | |
|
|
843 | float sx = rmin [0] - x; |
|
|
844 | float sy = rmin [1] - y; |
|
|
845 | |
|
|
846 | // TODO: adjust matrix for subpixel accuracy |
|
|
847 | int nx = floor (rmin [0]); |
|
|
848 | int ny = floor (rmin [1]); |
|
|
849 | |
|
|
850 | int new_width = ceil (rmax [0] - rmin [0]); |
|
|
851 | int new_height = ceil (rmax [1] - rmin [1]); |
|
|
852 | |
|
|
853 | mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse (); |
|
|
854 | |
|
|
855 | composer cc (this, new rxvt_img (d, format, nx, ny, new_width, new_height, repeat)); |
527 | |
856 | |
528 | XTransform xfrm; |
857 | XTransform xfrm; |
529 | |
858 | |
530 | for (int i = 0; i < 3; ++i) |
859 | for (int i = 0; i < 3; ++i) |
531 | for (int j = 0; j < 3; ++j) |
860 | for (int j = 0; j < 3; ++j) |
532 | xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
861 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
533 | |
862 | |
534 | xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO |
|
|
535 | xfrm.matrix [1][2] -= XDoubleToFixed (y); |
|
|
536 | |
|
|
537 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
863 | XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0); |
538 | XRenderSetPictureTransform (dpy, src, &xfrm); |
864 | XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm); |
539 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
865 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
540 | |
866 | |
541 | XRenderFreePicture (dpy, src); |
|
|
542 | XRenderFreePicture (dpy, dst); |
|
|
543 | |
|
|
544 | return img; |
867 | return cc; |
545 | } |
868 | } |
546 | |
869 | |
547 | rxvt_img * |
870 | rxvt_img * |
548 | rxvt_img::scale (int new_width, int new_height) |
871 | rxvt_img::scale (int new_width, int new_height) |
549 | { |
872 | { |
550 | if (w == new_width && h == new_height) |
873 | if (w == new_width && h == new_height) |
551 | return clone (); |
874 | return clone (); |
552 | |
875 | |
553 | double matrix[9] = { |
|
|
554 | w / (double)new_width, 0, 0, |
|
|
555 | 0, h / (double)new_height, 0, |
|
|
556 | 0, 0, 1 |
|
|
557 | }; |
|
|
558 | |
|
|
559 | int old_repeat_mode = repeat; |
876 | int old_repeat_mode = repeat; |
560 | repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems |
877 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
561 | |
878 | |
562 | rxvt_img *img = transform (new_width, new_height, matrix); |
879 | rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h)); |
563 | |
880 | |
564 | repeat = old_repeat_mode; |
881 | repeat = old_repeat_mode; |
565 | img->repeat = repeat; |
882 | img->repeat = repeat; |
566 | |
883 | |
567 | return img; |
884 | return img; |
568 | } |
885 | } |
569 | |
886 | |
570 | rxvt_img * |
887 | rxvt_img * |
571 | rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) |
888 | rxvt_img::rotate (int cx, int cy, nv phi) |
572 | { |
889 | { |
573 | double s = sin (phi); |
890 | move (-cx, -cy); |
574 | double c = cos (phi); |
891 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
|
|
892 | move ( cx, cy); |
|
|
893 | img->move (cx, cy); |
575 | |
894 | |
576 | double matrix[9] = { |
895 | return img; |
577 | c, -s, -c * x + s * y + x, |
|
|
578 | s, c, -s * x - c * y + y, |
|
|
579 | 0, 0, 1 |
|
|
580 | }; |
|
|
581 | |
|
|
582 | return transform (new_width, new_height, matrix); |
|
|
583 | } |
896 | } |
584 | |
897 | |
585 | rxvt_img * |
898 | rxvt_img * |
586 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) |
899 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
587 | { |
900 | { |
588 | if (new_format == format) |
901 | if (new_format == format) |
589 | return clone (); |
902 | return clone (); |
590 | |
903 | |
591 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
904 | composer cc (this, new rxvt_img (d, new_format, x, y, w, h, repeat)); |
592 | img->alloc (); |
|
|
593 | |
905 | |
594 | Display *dpy = s->display->dpy; |
|
|
595 | Picture src = src_picture (); |
|
|
596 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
597 | int op = PictOpSrc; |
906 | int op = PictOpSrc; |
598 | |
907 | |
599 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
908 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
600 | { |
909 | { |
601 | // does it have to be that complicated |
910 | // does it have to be that complicated |
602 | rgba c; |
|
|
603 | bg.get (c); |
|
|
604 | |
|
|
605 | XRenderColor rc = { c.r, c.g, c.b, 0xffff }; |
911 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
606 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
912 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h); |
607 | |
913 | |
608 | op = PictOpOver; |
914 | op = PictOpOver; |
609 | } |
915 | } |
610 | |
916 | |
611 | XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
917 | XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
612 | |
918 | |
613 | XRenderFreePicture (dpy, src); |
919 | return cc; |
614 | XRenderFreePicture (dpy, dst); |
920 | } |
|
|
921 | |
|
|
922 | rxvt_img * |
|
|
923 | rxvt_img::tint (const rgba &c) |
|
|
924 | { |
|
|
925 | composer cc (this); |
|
|
926 | cc.mask (true); |
|
|
927 | cc.fill (c); |
|
|
928 | |
|
|
929 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
930 | |
|
|
931 | return cc; |
|
|
932 | } |
|
|
933 | |
|
|
934 | rxvt_img * |
|
|
935 | rxvt_img::shade (nv factor, rgba c) |
|
|
936 | { |
|
|
937 | clamp_it (factor, -1., 1.); |
|
|
938 | factor++; |
|
|
939 | |
|
|
940 | if (factor > 1) |
|
|
941 | { |
|
|
942 | c.r = c.r * (2 - factor); |
|
|
943 | c.g = c.g * (2 - factor); |
|
|
944 | c.b = c.b * (2 - factor); |
|
|
945 | } |
|
|
946 | else |
|
|
947 | { |
|
|
948 | c.r = c.r * factor; |
|
|
949 | c.g = c.g * factor; |
|
|
950 | c.b = c.b * factor; |
|
|
951 | } |
|
|
952 | |
|
|
953 | rxvt_img *img = this->tint (c); |
|
|
954 | |
|
|
955 | if (factor > 1) |
|
|
956 | { |
|
|
957 | c.a = 0xffff; |
|
|
958 | c.r = |
|
|
959 | c.g = |
|
|
960 | c.b = 0xffff * (factor - 1); |
|
|
961 | |
|
|
962 | img->brightness (c.r, c.g, c.b, c.a); |
|
|
963 | } |
615 | |
964 | |
616 | return img; |
965 | return img; |
617 | } |
966 | } |
618 | |
967 | |
619 | rxvt_img * |
968 | rxvt_img * |
620 | rxvt_img::blend (rxvt_img *img, double factor) |
969 | rxvt_img::filter (const char *name, int nparams, nv *params) |
621 | { |
970 | { |
622 | rxvt_img *img2 = clone (); |
971 | composer cc (this); |
623 | Display *dpy = s->display->dpy; |
|
|
624 | Picture src = img->src_picture (); |
|
|
625 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
626 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
|
|
627 | |
972 | |
628 | XRenderColor mask_c; |
973 | XFixed *xparams = rxvt_temp_buf<XFixed> (nparams); |
629 | |
974 | |
630 | mask_c.alpha = float_to_component (factor); |
975 | for (int i = 0; i < nparams; ++i) |
631 | mask_c.red = |
976 | xparams [i] = XDoubleToFixed (params [i]); |
632 | mask_c.green = |
|
|
633 | mask_c.blue = 0; |
|
|
634 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
635 | |
977 | |
|
|
978 | XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams); |
|
|
979 | |
636 | XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
980 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
637 | |
981 | |
638 | XRenderFreePicture (dpy, src); |
|
|
639 | XRenderFreePicture (dpy, dst); |
|
|
640 | XRenderFreePicture (dpy, mask); |
|
|
641 | |
|
|
642 | return img2; |
982 | return cc; |
643 | } |
983 | } |
644 | |
984 | |
645 | #endif |
985 | #endif |
646 | |
986 | |