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1 | /*----------------------------------------------------------------------* |
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2 | * File: rxvtimg.C |
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3 | *----------------------------------------------------------------------* |
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4 | * |
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5 | * All portions of code are copyright by their respective author/s. |
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6 | * Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de> |
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7 | * Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or modify |
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10 | * it under the terms of the GNU General Public License as published by |
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11 | * the Free Software Foundation; either version 2 of the License, or |
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12 | * (at your option) any later version. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this program; if not, write to the Free Software |
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21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | *---------------------------------------------------------------------*/ |
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23 | |
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24 | #include <string.h> |
1 | #include <math.h> |
25 | #include <math.h> |
2 | #include "../config.h" |
26 | #include "../config.h" |
3 | #include "rxvt.h" |
27 | #include "rxvt.h" |
4 | |
28 | |
5 | #if HAVE_IMG |
29 | #if HAVE_IMG |
6 | |
30 | |
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31 | typedef rxvt_img::nv nv; |
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32 | |
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33 | namespace |
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34 | { |
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35 | struct mat3x3 |
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36 | { |
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37 | nv v[3][3]; |
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38 | |
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39 | mat3x3 () |
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40 | { |
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41 | } |
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42 | |
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43 | mat3x3 (const nv *matrix) |
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44 | { |
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45 | memcpy (v, matrix, sizeof (v)); |
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46 | } |
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47 | |
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48 | mat3x3 (nv v11, nv v12, nv v13, nv v21, nv v22, nv v23, nv v31, nv v32, nv v33) |
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49 | { |
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50 | v[0][0] = v11; v[0][1] = v12; v[0][2] = v13; |
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51 | v[1][0] = v21; v[1][1] = v22; v[1][2] = v23; |
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52 | v[2][0] = v31; v[2][1] = v32; v[2][2] = v33; |
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53 | } |
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54 | |
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55 | mat3x3 inverse (); |
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56 | |
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57 | nv *operator [](int i) { return &v[i][0]; } |
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58 | const nv *operator [](int i) const { return &v[i][0]; } |
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59 | |
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60 | operator const nv * () const { return &v[0][0]; } |
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61 | operator nv * () { return &v[0][0]; } |
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62 | |
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63 | // quite inefficient, hopefully gcc pulls the w calc out of any loops |
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64 | nv apply1 (int i, nv x, nv y) |
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65 | { |
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66 | mat3x3 &m = *this; |
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67 | |
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68 | nv v = m[i][0] * x + m[i][1] * y + m[i][2]; |
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69 | nv w = m[2][0] * x + m[2][1] * y + m[2][2]; |
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70 | |
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71 | return v * (1. / w); |
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72 | } |
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73 | |
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74 | static mat3x3 translate (nv x, nv y); |
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75 | static mat3x3 scale (nv s, nv t); |
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76 | static mat3x3 rotate (nv phi); |
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77 | }; |
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78 | |
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79 | mat3x3 |
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80 | mat3x3::inverse () |
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81 | { |
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82 | mat3x3 &m = *this; |
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83 | mat3x3 inv; |
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84 | |
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85 | nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2]; |
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86 | nv s1 = m[2][1] * m[0][2] - m[2][2] * m[0][1]; |
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87 | nv s2 = m[1][2] * m[0][1] - m[1][1] * m[0][2]; |
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88 | |
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89 | nv invdet = 1. / (m[0][0] * s0 + m[1][0] * s1 + m[2][0] * s2); |
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90 | |
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91 | inv[0][0] = invdet * s0; |
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92 | inv[0][1] = invdet * s1; |
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93 | inv[0][2] = invdet * s2; |
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94 | |
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95 | inv[1][0] = invdet * (m[2][0] * m[1][2] - m[2][2] * m[1][0]); |
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96 | inv[1][1] = invdet * (m[2][2] * m[0][0] - m[2][0] * m[0][2]); |
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97 | inv[1][2] = invdet * (m[1][0] * m[0][2] - m[1][2] * m[0][0]); |
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98 | |
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99 | inv[2][0] = invdet * (m[2][1] * m[1][0] - m[2][0] * m[1][1]); |
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100 | inv[2][1] = invdet * (m[2][0] * m[0][1] - m[2][1] * m[0][0]); |
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101 | inv[2][2] = invdet * (m[1][1] * m[0][0] - m[1][0] * m[0][1]); |
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102 | |
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103 | return inv; |
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104 | } |
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105 | |
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106 | static mat3x3 |
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107 | operator *(const mat3x3 &a, const mat3x3 &b) |
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108 | { |
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109 | mat3x3 r; |
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110 | |
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111 | for (int i = 0; i < 3; ++i) |
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112 | for (int j = 0; j < 3; ++j) |
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113 | r[i][j] = a[i][0] * b[0][j] |
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114 | + a[i][1] * b[1][j] |
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115 | + a[i][2] * b[2][j]; |
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116 | |
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117 | return r; |
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118 | } |
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119 | |
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120 | mat3x3 |
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121 | mat3x3::translate (nv x, nv y) |
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122 | { |
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123 | return mat3x3 ( |
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124 | 1, 0, x, |
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125 | 0, 1, y, |
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126 | 0, 0, 1 |
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127 | ); |
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128 | } |
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129 | |
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130 | mat3x3 |
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131 | mat3x3::scale (nv s, nv t) |
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132 | { |
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133 | return mat3x3 ( |
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134 | s, 0, 0, |
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135 | 0, t, 0, |
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136 | 0, 0, 1 |
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137 | ); |
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138 | } |
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139 | |
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140 | // clockwise |
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141 | mat3x3 |
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142 | mat3x3::rotate (nv phi) |
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143 | { |
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144 | nv s = sin (phi); |
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145 | nv c = cos (phi); |
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146 | |
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147 | return mat3x3 ( |
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148 | c, -s, 0, |
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149 | s, c, 0, |
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150 | 0, 0, 1 |
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151 | ); |
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152 | } |
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153 | |
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154 | struct composer |
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155 | { |
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156 | rxvt_img *srcimg, *dstimg; |
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157 | Picture src, dst, msk; |
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158 | Display *dpy; |
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159 | |
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160 | ecb_noinline |
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161 | composer (rxvt_img *srcimg, rxvt_img *dstimg = 0) |
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162 | : srcimg (srcimg), dstimg (dstimg), msk (0) |
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163 | { |
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164 | if (!this->dstimg) |
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165 | this->dstimg = srcimg->new_empty (); |
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166 | else if (!this->dstimg->pm) // somewhat unsatisfying |
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167 | this->dstimg->alloc (); |
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168 | |
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169 | dpy = srcimg->s->dpy; |
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170 | src = srcimg->picture (); |
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171 | dst = this->dstimg->picture (); |
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172 | } |
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173 | |
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174 | ecb_noinline |
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175 | void mask (bool rgb = true, int w = 1, int h = 1) |
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176 | { |
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177 | Pixmap pixmap = XCreatePixmap (dpy, srcimg->pm, w, h, rgb ? 32 : 8); |
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178 | |
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179 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, rgb ? PictStandardARGB32 : PictStandardA8); |
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180 | XRenderPictureAttributes pa; |
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181 | pa.repeat = RepeatNormal; |
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182 | pa.component_alpha = rgb; |
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183 | msk = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
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184 | |
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185 | XFreePixmap (dpy, pixmap); |
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186 | |
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187 | ecb_assume (msk); |
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188 | } |
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189 | |
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190 | // CreateSolidFill creates a very very very weird picture |
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191 | void mask (const rgba &c) |
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192 | { |
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193 | XRenderColor rc = { |
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194 | c.r * c.a / 65535, |
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195 | c.g * c.a / 65535, |
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196 | c.b * c.a / 65535, |
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197 | c.a |
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198 | }; |
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199 | msk = XRenderCreateSolidFill (dpy, &rc); |
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200 | ecb_assume (msk); |
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201 | } |
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202 | |
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203 | void fill (const rgba &c) |
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204 | { |
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205 | XRenderColor rc = { |
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206 | c.r * c.a / 65535, |
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207 | c.g * c.a / 65535, |
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208 | c.b * c.a / 65535, |
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209 | c.a |
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210 | }; |
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211 | |
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212 | XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1); |
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213 | } |
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214 | |
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215 | operator rxvt_img *() |
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216 | { |
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217 | return dstimg; |
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218 | } |
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219 | |
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220 | ecb_noinline |
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221 | ~composer () |
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222 | { |
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223 | XRenderFreePicture (dpy, src); |
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224 | XRenderFreePicture (dpy, dst); |
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225 | if (msk) XRenderFreePicture (dpy, msk); |
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226 | } |
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227 | }; |
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228 | } |
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229 | |
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230 | static XRenderPictFormat * |
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231 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
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232 | { |
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233 | if (format->direct.alphaMask) |
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234 | return format; // already has alpha |
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235 | |
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236 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
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237 | if (format->type == PictTypeDirect) |
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238 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
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239 | if (f->direct.alphaMask |
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240 | && f->type == PictTypeDirect |
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241 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
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242 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
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243 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
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244 | return f; |
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245 | |
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246 | // should be a very good fallback |
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247 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
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248 | } |
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249 | |
7 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height) |
250 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
8 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(RepeatNormal), |
251 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
9 | pm(0), refcnt(0) |
252 | pm(0), ref(0) |
10 | { |
253 | { |
11 | } |
254 | } |
12 | |
255 | |
13 | rxvt_img::rxvt_img (const rxvt_img &img) |
256 | 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), refcnt(img.refcnt) |
257 | : 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) |
15 | { |
258 | { |
16 | if (refcnt) |
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17 | ++*refcnt; |
259 | ++ref->cnt; |
18 | } |
260 | } |
19 | |
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20 | #if 0 |
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21 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) |
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22 | : s(screen), x(0), y(0), w(width), h(height), format(format), repeat(RepeatNormal), shared(false), pm(pixmap) |
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23 | { |
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24 | } |
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25 | #endif |
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26 | |
261 | |
27 | rxvt_img * |
262 | rxvt_img * |
28 | rxvt_img::new_from_root (rxvt_screen *s) |
263 | rxvt_img::new_from_root (rxvt_screen *s) |
29 | { |
264 | { |
30 | Display *dpy = s->display->dpy; |
265 | Display *dpy = s->dpy; |
31 | unsigned int root_pm_w, root_pm_h; |
266 | unsigned int root_pm_w, root_pm_h; |
32 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
267 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]); |
33 | if (root_pixmap == None) |
268 | if (root_pixmap == None) |
34 | root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
269 | root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]); |
35 | |
270 | |
36 | if (root_pixmap == None) |
271 | if (root_pixmap == None) |
37 | return 0; |
272 | return 0; |
38 | |
273 | |
39 | Window wdummy; |
274 | Window wdummy; |
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51 | root_pm_w, |
286 | root_pm_w, |
52 | root_pm_h |
287 | root_pm_h |
53 | ); |
288 | ); |
54 | |
289 | |
55 | img->pm = root_pixmap; |
290 | img->pm = root_pixmap; |
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291 | img->ref = new pixref (root_pm_w, root_pm_h); |
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292 | img->ref->ours = false; |
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293 | |
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294 | return img; |
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295 | } |
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296 | |
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297 | # if HAVE_PIXBUF |
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298 | |
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299 | rxvt_img * |
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300 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
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301 | { |
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302 | Display *dpy = s->dpy; |
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303 | |
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304 | int width = gdk_pixbuf_get_width (pb); |
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305 | int height = gdk_pixbuf_get_height (pb); |
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306 | |
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307 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
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308 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
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309 | |
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310 | // since we require rgb24/argb32 formats from xrender we assume |
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311 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
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312 | |
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313 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
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314 | |
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315 | XImage xi; |
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316 | |
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317 | xi.width = width; |
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318 | xi.height = height; |
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319 | xi.xoffset = 0; |
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320 | xi.format = ZPixmap; |
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321 | xi.byte_order = ImageByteOrder (dpy); |
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322 | xi.bitmap_unit = 0; //XY only, unused |
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323 | xi.bitmap_bit_order = 0; //XY only, unused |
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324 | xi.bitmap_pad = BitmapPad (dpy); |
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325 | xi.depth = 32; |
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326 | xi.bytes_per_line = 0; |
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327 | xi.bits_per_pixel = 32; //Z only |
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328 | xi.red_mask = 0x00000000; //Z only, unused |
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329 | xi.green_mask = 0x00000000; //Z only, unused |
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330 | xi.blue_mask = 0x00000000; //Z only, unused |
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331 | xi.obdata = 0; // probably unused |
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332 | |
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333 | bool byte_order_mismatch = byte_order != xi.byte_order; |
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334 | |
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335 | if (!XInitImage (&xi)) |
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336 | rxvt_fatal ("unable to initialise ximage, please report.\n"); |
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337 | |
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338 | if (height > INT_MAX / xi.bytes_per_line) |
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339 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
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340 | |
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341 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
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342 | |
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343 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
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344 | bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb); |
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345 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
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346 | |
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347 | char *line = xi.data; |
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348 | |
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349 | for (int y = 0; y < height; y++) |
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350 | { |
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351 | unsigned char *src = row; |
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352 | uint32_t *dst = (uint32_t *)line; |
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353 | |
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354 | for (int x = 0; x < width; x++) |
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355 | { |
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356 | uint8_t r = *src++; |
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357 | uint8_t g = *src++; |
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358 | uint8_t b = *src++; |
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359 | uint8_t a = *src; |
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360 | |
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361 | // this is done so it can be jump-free, but newer gcc's clone inner the loop |
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362 | a = pb_has_alpha ? a : 255; |
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363 | src += pb_has_alpha; |
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364 | |
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365 | r = (r * a + 127) / 255; |
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366 | g = (g * a + 127) / 255; |
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367 | b = (b * a + 127) / 255; |
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368 | |
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369 | uint32_t v = (a << 24) | (r << 16) | (g << 8) | b; |
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370 | |
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371 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
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372 | v = ecb_bswap32 (v); |
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373 | |
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374 | *dst++ = v; |
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375 | } |
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376 | |
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377 | row += rowstride; |
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378 | line += xi.bytes_per_line; |
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379 | } |
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380 | |
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381 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height); |
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382 | img->alloc (); |
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383 | |
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384 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
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385 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
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386 | XFreeGC (dpy, gc); |
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387 | |
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388 | free (xi.data); |
56 | |
389 | |
57 | return img; |
390 | return img; |
58 | } |
391 | } |
59 | |
392 | |
60 | rxvt_img * |
393 | rxvt_img * |
… | |
… | |
64 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
397 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
65 | |
398 | |
66 | if (!pb) |
399 | if (!pb) |
67 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
400 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
68 | |
401 | |
69 | rxvt_img *img = new rxvt_img ( |
402 | rxvt_img *img = new_from_pixbuf (s, pb); |
70 | s, |
|
|
71 | XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), |
|
|
72 | 0, |
|
|
73 | 0, |
|
|
74 | gdk_pixbuf_get_width (pb), |
|
|
75 | gdk_pixbuf_get_height (pb) |
|
|
76 | ); |
|
|
77 | img->alloc (); |
|
|
78 | img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0); |
|
|
79 | |
403 | |
80 | g_object_unref (pb); |
404 | g_object_unref (pb); |
81 | |
405 | |
82 | return img; |
406 | return img; |
83 | } |
407 | } |
|
|
408 | |
|
|
409 | # endif |
84 | |
410 | |
85 | void |
411 | void |
86 | rxvt_img::destroy () |
412 | rxvt_img::destroy () |
87 | { |
413 | { |
88 | if (!refcnt || --*refcnt) |
414 | if (--ref->cnt) |
89 | return; |
415 | return; |
90 | |
416 | |
91 | if (pm) |
417 | if (pm && ref->ours) |
92 | XFreePixmap (s->display->dpy, pm); |
418 | XFreePixmap (s->dpy, pm); |
93 | |
419 | |
94 | delete refcnt; |
420 | delete ref; |
95 | } |
421 | } |
96 | |
422 | |
97 | rxvt_img::~rxvt_img () |
423 | rxvt_img::~rxvt_img () |
98 | { |
424 | { |
99 | destroy (); |
425 | destroy (); |
100 | } |
426 | } |
101 | |
427 | |
102 | void |
428 | void |
103 | rxvt_img::alloc () |
429 | rxvt_img::alloc () |
104 | { |
430 | { |
105 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
431 | pm = XCreatePixmap (s->dpy, s->display->root, w, h, format->depth); |
106 | refcnt = new int (1); |
432 | ref = new pixref (w, h); |
|
|
433 | } |
|
|
434 | |
|
|
435 | rxvt_img * |
|
|
436 | rxvt_img::new_empty () |
|
|
437 | { |
|
|
438 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
439 | img->alloc (); |
|
|
440 | |
|
|
441 | return img; |
|
|
442 | } |
|
|
443 | |
|
|
444 | Picture |
|
|
445 | rxvt_img::picture () |
|
|
446 | { |
|
|
447 | Display *dpy = s->dpy; |
|
|
448 | |
|
|
449 | XRenderPictureAttributes pa; |
|
|
450 | pa.repeat = repeat; |
|
|
451 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
|
|
452 | |
|
|
453 | return pic; |
107 | } |
454 | } |
108 | |
455 | |
109 | void |
456 | void |
110 | rxvt_img::unshare () |
457 | rxvt_img::unshare () |
111 | { |
458 | { |
112 | if (refcnt && *refcnt == 1) |
459 | if (ref->cnt == 1 && ref->ours) |
113 | return; |
460 | return; |
114 | |
461 | |
115 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
462 | Pixmap pm2 = XCreatePixmap (s->dpy, s->display->root, ref->w, ref->h, format->depth); |
116 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
463 | GC gc = XCreateGC (s->dpy, pm, 0, 0); |
117 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0); |
464 | XCopyArea (s->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
118 | XFreeGC (s->display->dpy, gc); |
465 | XFreeGC (s->dpy, gc); |
119 | |
466 | |
120 | destroy (); |
467 | destroy (); |
121 | |
468 | |
122 | pm = pm2; |
469 | pm = pm2; |
123 | refcnt = new int (1); |
470 | ref = new pixref (ref->w, ref->h); |
124 | } |
471 | } |
125 | |
472 | |
126 | void |
473 | void |
|
|
474 | rxvt_img::fill (const rgba &c, int x, int y, int w, int h) |
|
|
475 | { |
|
|
476 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
|
|
477 | |
|
|
478 | Display *dpy = s->dpy; |
|
|
479 | Picture src = picture (); |
|
|
480 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, x, y, w, h); |
|
|
481 | XRenderFreePicture (dpy, src); |
|
|
482 | } |
|
|
483 | |
|
|
484 | void |
127 | rxvt_img::fill (const rxvt_color &c) |
485 | rxvt_img::fill (const rgba &c) |
128 | { |
486 | { |
129 | XGCValues gcv; |
487 | fill (c, 0, 0, w, h); |
130 | gcv.foreground = c; |
488 | } |
131 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
489 | |
132 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
490 | void |
133 | XFreeGC (s->display->dpy, gc); |
491 | rxvt_img::add_alpha () |
|
|
492 | { |
|
|
493 | if (format->direct.alphaMask) |
|
|
494 | return; |
|
|
495 | |
|
|
496 | composer cc (this, new rxvt_img (s, find_alpha_format_for (s->dpy, format), x, y, w, h, repeat)); |
|
|
497 | |
|
|
498 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
499 | |
|
|
500 | rxvt_img *img = cc; |
|
|
501 | |
|
|
502 | ::swap (img->ref, ref); |
|
|
503 | ::swap (img->pm , pm ); |
|
|
504 | |
|
|
505 | delete img; |
134 | } |
506 | } |
135 | |
507 | |
136 | static void |
508 | static void |
137 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
509 | get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params) |
138 | { |
510 | { |
139 | double sigma = radius / 2.0; |
511 | nv sigma = radius / 2.0; |
140 | double scale = sqrt (2.0 * M_PI) * sigma; |
512 | nv scale = sqrt (2.0 * M_PI) * sigma; |
141 | double sum = 0.0; |
513 | nv sum = 0.0; |
142 | |
514 | |
143 | for (int i = 0; i < width; i++) |
515 | for (int i = 0; i < width; i++) |
144 | { |
516 | { |
145 | double x = i - width / 2; |
517 | nv x = i - width / 2; |
146 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
518 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
147 | sum += kernel[i]; |
519 | sum += kernel[i]; |
148 | } |
520 | } |
149 | |
521 | |
150 | params[0] = XDoubleToFixed (width); |
522 | params[0] = XDoubleToFixed (width); |
… | |
… | |
158 | rxvt_img::blur (int rh, int rv) |
530 | rxvt_img::blur (int rh, int rv) |
159 | { |
531 | { |
160 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
532 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
161 | return clone (); |
533 | return clone (); |
162 | |
534 | |
163 | Display *dpy = s->display->dpy; |
535 | Display *dpy = s->dpy; |
164 | int size = max (rh, rv) * 2 + 1; |
536 | int size = max (rh, rv) * 2 + 1; |
165 | double *kernel = (double *)malloc (size * sizeof (double)); |
537 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
166 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
538 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
167 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h); |
539 | rxvt_img *img = new_empty (); |
168 | img->alloc (); |
|
|
169 | |
540 | |
170 | XRenderPictureAttributes pa; |
541 | XRenderPictureAttributes pa; |
171 | |
|
|
172 | pa.repeat = RepeatPad; |
542 | pa.repeat = RepeatPad; |
173 | Picture src = XRenderCreatePicture (dpy, pm , format, CPRepeat, &pa); |
543 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
174 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa); |
544 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
175 | |
545 | |
176 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
546 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
177 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
547 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
178 | XFreePixmap (dpy, tmp_pm); |
548 | XFreePixmap (dpy, tmp_pm); |
179 | |
549 | |
… | |
… | |
195 | |
565 | |
196 | size = rv * 2 + 1; |
566 | size = rv * 2 + 1; |
197 | get_gaussian_kernel (rv, size, kernel, params); |
567 | get_gaussian_kernel (rv, size, kernel, params); |
198 | ::swap (params[0], params[1]); |
568 | ::swap (params[0], params[1]); |
199 | |
569 | |
200 | XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
570 | XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2); |
201 | XRenderComposite (dpy, |
571 | XRenderComposite (dpy, |
202 | PictOpSrc, |
572 | PictOpSrc, |
203 | tmp, |
573 | tmp, |
204 | None, |
574 | None, |
205 | dst, |
575 | dst, |
… | |
… | |
209 | w, h); |
579 | w, h); |
210 | } |
580 | } |
211 | |
581 | |
212 | free (kernel); |
582 | free (kernel); |
213 | free (params); |
583 | free (params); |
|
|
584 | |
214 | XRenderFreePicture (dpy, src); |
585 | XRenderFreePicture (dpy, src); |
215 | XRenderFreePicture (dpy, dst); |
586 | XRenderFreePicture (dpy, dst); |
216 | XRenderFreePicture (dpy, tmp); |
587 | XRenderFreePicture (dpy, tmp); |
217 | |
588 | |
218 | return img; |
589 | return img; |
219 | } |
590 | } |
220 | |
591 | |
221 | static Picture |
592 | rxvt_img * |
222 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) |
593 | rxvt_img::muladd (nv mul, nv add) |
223 | { |
594 | { |
224 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
595 | // STEP 1: double the image width, fill all odd columns with white (==1) |
225 | |
596 | |
226 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
597 | composer cc (this, new rxvt_img (s, format, 0, 0, w * 2, h, repeat)); |
227 | XRenderPictureAttributes pa; |
|
|
228 | pa.repeat = True; |
|
|
229 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
|
|
230 | |
598 | |
231 | XFreePixmap (dpy, pixmap); |
599 | // why the hell does XRenderSetPictureTransform want a writable matrix :( |
|
|
600 | // that keeps us from just static const'ing this matrix. |
|
|
601 | XTransform h_double = { |
|
|
602 | 0x8000, 0, 0, |
|
|
603 | 0, 0x1000, 0, |
|
|
604 | 0, 0, 0x1000 |
|
|
605 | }; |
232 | |
606 | |
233 | return mask; |
607 | XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0); |
|
|
608 | XRenderSetPictureTransform (cc.dpy, cc.src, &h_double); |
|
|
609 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
610 | |
|
|
611 | cc.mask (false, 2, 1); |
|
|
612 | |
|
|
613 | static const XRenderColor c0 = { 0, 0, 0, 0 }; |
|
|
614 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c0, 0, 0, 1, 1); |
|
|
615 | static const XRenderColor c1 = { 65535, 65535, 65535, 65535 }; |
|
|
616 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c1, 1, 0, 1, 1); |
|
|
617 | |
|
|
618 | Picture white = XRenderCreateSolidFill (cc.dpy, &c1); |
|
|
619 | |
|
|
620 | XRenderComposite (cc.dpy, PictOpOver, white, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
621 | |
|
|
622 | XRenderFreePicture (cc.dpy, white); |
|
|
623 | |
|
|
624 | // STEP 2: convolve the image with a 3x1 filter |
|
|
625 | // a 2x1 filter would obviously suffice, but given the total lack of specification |
|
|
626 | // for xrender, I expect different xrender implementations to randomly diverge. |
|
|
627 | // we also halve the image, and hope for the best (again, for lack of specs). |
|
|
628 | composer cc2 (cc.dstimg); |
|
|
629 | |
|
|
630 | XFixed kernel [] = { |
|
|
631 | XDoubleToFixed (3), XDoubleToFixed (1), |
|
|
632 | XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add) |
|
|
633 | }; |
|
|
634 | |
|
|
635 | XTransform h_halve = { |
|
|
636 | 0x2000, 0, 0, |
|
|
637 | 0, 0x1000, 0, |
|
|
638 | 0, 0, 0x1000 |
|
|
639 | }; |
|
|
640 | |
|
|
641 | XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0); |
|
|
642 | XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve); |
|
|
643 | XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel)); |
|
|
644 | |
|
|
645 | XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
646 | |
|
|
647 | return cc2; |
|
|
648 | } |
|
|
649 | |
|
|
650 | ecb_noinline static void |
|
|
651 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
|
|
652 | { |
|
|
653 | int32_t x = clamp (c, cl0, cl1); |
|
|
654 | c -= x; |
|
|
655 | xc = x; |
|
|
656 | } |
|
|
657 | |
|
|
658 | ecb_noinline static bool |
|
|
659 | extract (int32_t cl0, int32_t cl1, int32_t &r, int32_t &g, int32_t &b, int32_t &a, unsigned short &xr, unsigned short &xg, unsigned short &xb, unsigned short &xa) |
|
|
660 | { |
|
|
661 | extract (cl0, cl1, r, xr); |
|
|
662 | extract (cl0, cl1, g, xg); |
|
|
663 | extract (cl0, cl1, b, xb); |
|
|
664 | extract (cl0, cl1, a, xa); |
|
|
665 | |
|
|
666 | return xr | xg | xb | xa; |
234 | } |
667 | } |
235 | |
668 | |
236 | void |
669 | void |
237 | rxvt_img::brightness (unsigned short r, unsigned short g, unsigned short b, unsigned short a) |
670 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
238 | { |
671 | { |
|
|
672 | unshare (); |
|
|
673 | |
239 | Display *dpy = s->display->dpy; |
674 | Display *dpy = s->dpy; |
240 | Picture src = create_xrender_mask (dpy, pm, True); |
|
|
241 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
675 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
242 | |
676 | |
|
|
677 | // loop should not be needed for brightness, as only -1..1 makes sense |
|
|
678 | //while (r | g | b | a) |
|
|
679 | { |
|
|
680 | unsigned short xr, xg, xb, xa; |
243 | XRenderColor mask_c; |
681 | XRenderColor mask_c; |
244 | mask_c.red = r; |
682 | |
245 | mask_c.green = g; |
683 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
246 | mask_c.blue = b; |
|
|
247 | mask_c.alpha = a; |
|
|
248 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
684 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
249 | |
685 | |
250 | XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
686 | if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
687 | { |
|
|
688 | XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
|
|
689 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
690 | mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing |
|
|
691 | mask_c.green = -mask_c.green; |
|
|
692 | mask_c.blue = -mask_c.blue; |
|
|
693 | mask_c.alpha = -mask_c.alpha; |
|
|
694 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
|
|
695 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
696 | } |
|
|
697 | } |
251 | |
698 | |
252 | XRenderFreePicture (dpy, src); |
|
|
253 | XRenderFreePicture (dpy, dst); |
699 | XRenderFreePicture (dpy, dst); |
254 | } |
700 | } |
255 | |
701 | |
256 | void |
702 | void |
257 | rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a) |
703 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
258 | { |
704 | { |
259 | if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
705 | if (r < 0 || g < 0 || b < 0 || a < 0) |
260 | return; |
706 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
261 | |
707 | |
262 | Display *dpy = s->display->dpy; |
708 | // premultiply (yeah, these are not exact, sue me or fix it) |
263 | Picture src = create_xrender_mask (dpy, pm, True); |
709 | r = (r * (a >> 8)) >> 8; |
264 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
710 | g = (g * (a >> 8)) >> 8; |
|
|
711 | b = (b * (a >> 8)) >> 8; |
265 | |
712 | |
|
|
713 | composer cc (this); |
|
|
714 | rxvt_img *img = cc; |
|
|
715 | img->fill (rgba (0, 0, 0, 0)); |
|
|
716 | |
|
|
717 | cc.mask (true); |
|
|
718 | |
|
|
719 | //TODO: this operator does not yet implement some useful contrast |
|
|
720 | while (r | g | b | a) |
|
|
721 | { |
|
|
722 | unsigned short xr, xg, xb, xa; |
266 | XRenderColor mask_c; |
723 | XRenderColor mask_c; |
267 | mask_c.red = r; |
|
|
268 | mask_c.green = g; |
|
|
269 | mask_c.blue = b; |
|
|
270 | mask_c.alpha = a; |
|
|
271 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
|
|
272 | |
724 | |
273 | XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
725 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
274 | |
|
|
275 | XRenderFreePicture (dpy, src); |
|
|
276 | XRenderFreePicture (dpy, dst); |
|
|
277 | } |
|
|
278 | |
|
|
279 | bool |
|
|
280 | rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) |
|
|
281 | { |
|
|
282 | Display *dpy = s->display->dpy; |
|
|
283 | |
|
|
284 | if (s->visual->c_class != TrueColor) |
|
|
285 | return false; |
|
|
286 | |
|
|
287 | uint32_t red_mask, green_mask, blue_mask, alpha_mask; |
|
|
288 | |
|
|
289 | red_mask = (uint32_t)format->direct.redMask << format->direct.red; |
|
|
290 | green_mask = (uint32_t)format->direct.greenMask << format->direct.green; |
|
|
291 | blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue; |
|
|
292 | alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha; |
|
|
293 | |
|
|
294 | int width_r = ecb_popcount32 (red_mask); |
|
|
295 | int width_g = ecb_popcount32 (green_mask); |
|
|
296 | int width_b = ecb_popcount32 (blue_mask); |
|
|
297 | int width_a = ecb_popcount32 (alpha_mask); |
|
|
298 | |
|
|
299 | if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8) |
|
|
300 | return false; |
|
|
301 | |
|
|
302 | int sh_r = ecb_ctz32 (red_mask); |
|
|
303 | int sh_g = ecb_ctz32 (green_mask); |
|
|
304 | int sh_b = ecb_ctz32 (blue_mask); |
|
|
305 | int sh_a = ecb_ctz32 (alpha_mask); |
|
|
306 | |
|
|
307 | if (width > 32767 || height > 32767) |
|
|
308 | return false; |
|
|
309 | |
|
|
310 | XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0, |
|
|
311 | width, height, 32, 0); |
|
|
312 | if (!ximage) |
|
|
313 | return false; |
|
|
314 | |
|
|
315 | if (height > INT_MAX / ximage->bytes_per_line |
|
|
316 | || !(ximage->data = (char *)malloc (height * ximage->bytes_per_line))) |
|
|
317 | { |
|
|
318 | XDestroyImage (ximage); |
|
|
319 | return false; |
|
|
320 | } |
|
|
321 | |
|
|
322 | GC gc = XCreateGC (dpy, pm, 0, 0); |
|
|
323 | |
|
|
324 | ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
|
|
325 | |
|
|
326 | int rowstride = gdk_pixbuf_get_rowstride (pixbuf); |
|
|
327 | int channels = gdk_pixbuf_get_n_channels (pixbuf); |
|
|
328 | unsigned char *row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels; |
|
|
329 | char *line = ximage->data; |
|
|
330 | |
|
|
331 | for (int y = 0; y < height; y++) |
|
|
332 | { |
|
|
333 | for (int x = 0; x < width; x++) |
|
|
334 | { |
726 | { |
335 | unsigned char *pixel = row + x * channels; |
727 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); |
336 | uint32_t value; |
728 | XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
337 | unsigned char r, g, b, a; |
|
|
338 | |
|
|
339 | if (channels == 4) |
|
|
340 | { |
|
|
341 | a = pixel[3]; |
|
|
342 | r = pixel[0] * a / 0xff; |
|
|
343 | g = pixel[1] * a / 0xff; |
|
|
344 | b = pixel[2] * a / 0xff; |
|
|
345 | } |
|
|
346 | else |
|
|
347 | { |
|
|
348 | a = 0xff; |
|
|
349 | r = pixel[0]; |
|
|
350 | g = pixel[1]; |
|
|
351 | b = pixel[2]; |
|
|
352 | } |
|
|
353 | |
|
|
354 | value = ((r >> (8 - width_r)) << sh_r) |
|
|
355 | | ((g >> (8 - width_g)) << sh_g) |
|
|
356 | | ((b >> (8 - width_b)) << sh_b) |
|
|
357 | | ((a >> (8 - width_a)) << sh_a); |
|
|
358 | |
|
|
359 | if (ximage->bits_per_pixel == 32) |
|
|
360 | ((uint32_t *)line)[x] = value; |
|
|
361 | else |
|
|
362 | XPutPixel (ximage, x, y, value); |
|
|
363 | } |
729 | } |
364 | |
|
|
365 | row += rowstride; |
|
|
366 | line += ximage->bytes_per_line; |
|
|
367 | } |
730 | } |
368 | |
731 | |
369 | XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height); |
732 | ::swap (img->ref, ref); |
370 | XDestroyImage (ximage); |
733 | ::swap (img->pm , pm ); |
371 | XFreeGC (dpy, gc); |
|
|
372 | |
734 | |
373 | return true; |
735 | delete img; |
|
|
736 | } |
|
|
737 | |
|
|
738 | void |
|
|
739 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
|
|
740 | { |
|
|
741 | unshare (); |
|
|
742 | |
|
|
743 | composer cc (img, this); |
|
|
744 | |
|
|
745 | if (mask != 1.) |
|
|
746 | cc.mask (rgba (0, 0, 0, float_to_component (mask))); |
|
|
747 | |
|
|
748 | XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
374 | } |
749 | } |
375 | |
750 | |
376 | rxvt_img * |
751 | rxvt_img * |
377 | rxvt_img::clone () |
752 | rxvt_img::clone () |
378 | { |
753 | { |
… | |
… | |
380 | } |
755 | } |
381 | |
756 | |
382 | rxvt_img * |
757 | rxvt_img * |
383 | rxvt_img::reify () |
758 | rxvt_img::reify () |
384 | { |
759 | { |
385 | rxvt_img *img = new rxvt_img (s, format, 0, 0, w, h); |
760 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
386 | img->alloc (); |
761 | return clone (); |
387 | |
762 | |
388 | // todo, if x==0 and y==0 and w==real width we could clone |
763 | // add an alpha channel if... |
389 | // but that involves an rtt to find pixmap width. |
764 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
|
|
765 | && (x || y) // we need one because of non-zero offset |
|
|
766 | && repeat == RepeatNone; // and we have no good pixels to fill with |
390 | |
767 | |
391 | Display *dpy = s->display->dpy; |
768 | composer cc (this, new rxvt_img (s, alpha ? find_alpha_format_for (s->dpy, format) : format, |
392 | XRenderPictureAttributes pa; |
769 | 0, 0, w, h, repeat)); |
393 | pa.repeat = repeat; |
770 | |
394 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
771 | if (repeat == RepeatNone) |
395 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
772 | { |
396 | |
773 | XRenderColor rc = { 0, 0, 0, 0 }; |
|
|
774 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
|
|
775 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
|
|
776 | } |
|
|
777 | else |
397 | XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
778 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h); |
398 | |
779 | |
399 | XRenderFreePicture (dpy, src); |
780 | return cc; |
400 | XRenderFreePicture (dpy, dst); |
781 | } |
|
|
782 | |
|
|
783 | rxvt_img * |
|
|
784 | rxvt_img::sub_rect (int x, int y, int width, int height) |
|
|
785 | { |
|
|
786 | rxvt_img *img = clone (); |
|
|
787 | |
|
|
788 | img->x -= x; |
|
|
789 | img->y -= y; |
|
|
790 | |
|
|
791 | if (w != width || h != height) |
|
|
792 | { |
|
|
793 | img->w = width; |
|
|
794 | img->h = height; |
|
|
795 | |
|
|
796 | rxvt_img *img2 = img->reify (); |
|
|
797 | delete img; |
|
|
798 | img = img2; |
|
|
799 | } |
401 | |
800 | |
402 | return img; |
801 | return img; |
403 | } |
802 | } |
404 | |
803 | |
405 | rxvt_img * |
804 | rxvt_img * |
406 | rxvt_img::sub_rect (int x, int y, int width, int height) |
805 | rxvt_img::transform (const nv matrix[3][3]) |
407 | { |
806 | { |
408 | rxvt_img *img = clone (); |
807 | return transform (mat3x3 (&matrix[0][0])); |
409 | |
|
|
410 | img->x += x; |
|
|
411 | img->y += y; |
|
|
412 | img->w = width; |
|
|
413 | img->h = height; |
|
|
414 | |
|
|
415 | return img; |
|
|
416 | } |
808 | } |
417 | |
809 | |
418 | rxvt_img * |
810 | rxvt_img * |
419 | rxvt_img::transform (int new_width, int new_height, double matrix[9]) |
811 | rxvt_img::transform (const nv *matrix) |
420 | { |
812 | { |
421 | rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height); |
813 | mat3x3 m (matrix); |
422 | img->alloc (); |
|
|
423 | |
814 | |
424 | Display *dpy = s->display->dpy; |
815 | // calculate new pixel bounding box coordinates |
425 | XRenderPictureAttributes pa; |
816 | nv rmin[2], rmax[2]; |
426 | pa.repeat = repeat; |
817 | |
427 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
818 | for (int i = 0; i < 2; ++i) |
428 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
819 | { |
|
|
820 | nv v; |
|
|
821 | |
|
|
822 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
|
|
823 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
824 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
825 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
826 | } |
|
|
827 | |
|
|
828 | float sx = rmin [0] - x; |
|
|
829 | float sy = rmin [1] - y; |
|
|
830 | |
|
|
831 | // TODO: adjust matrix for subpixel accuracy |
|
|
832 | int nx = floor (rmin [0]); |
|
|
833 | int ny = floor (rmin [1]); |
|
|
834 | |
|
|
835 | int new_width = ceil (rmax [0] - rmin [0]); |
|
|
836 | int new_height = ceil (rmax [1] - rmin [1]); |
|
|
837 | |
|
|
838 | mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse (); |
|
|
839 | |
|
|
840 | composer cc (this, new rxvt_img (s, format, nx, ny, new_width, new_height, repeat)); |
429 | |
841 | |
430 | XTransform xfrm; |
842 | XTransform xfrm; |
431 | |
843 | |
432 | for (int i = 0; i < 3; ++i) |
844 | for (int i = 0; i < 3; ++i) |
433 | for (int j = 0; j < 3; ++j) |
845 | for (int j = 0; j < 3; ++j) |
434 | xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
846 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
435 | |
847 | |
436 | xfrm.matrix [0][2] += XDoubleToFixed (x);//TODO |
|
|
437 | xfrm.matrix [0][3] += XDoubleToFixed (y); |
|
|
438 | |
|
|
439 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
848 | XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0); |
440 | XRenderSetPictureTransform (dpy, src, &xfrm); |
849 | XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm); |
441 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
850 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
442 | |
851 | |
443 | XRenderFreePicture (dpy, src); |
852 | return cc; |
444 | XRenderFreePicture (dpy, dst); |
853 | } |
|
|
854 | |
|
|
855 | rxvt_img * |
|
|
856 | rxvt_img::scale (int new_width, int new_height) |
|
|
857 | { |
|
|
858 | if (w == new_width && h == new_height) |
|
|
859 | return clone (); |
|
|
860 | |
|
|
861 | int old_repeat_mode = repeat; |
|
|
862 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
|
|
863 | |
|
|
864 | rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h)); |
|
|
865 | |
|
|
866 | repeat = old_repeat_mode; |
|
|
867 | img->repeat = repeat; |
445 | |
868 | |
446 | return img; |
869 | return img; |
447 | } |
870 | } |
448 | |
871 | |
449 | rxvt_img * |
872 | rxvt_img * |
450 | rxvt_img::scale (int new_width, int new_height) |
873 | rxvt_img::rotate (int cx, int cy, nv phi) |
451 | { |
874 | { |
452 | double matrix[9] = { |
875 | move (-cx, -cy); |
453 | w / (double)new_width, 0, 0, |
876 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
454 | 0, h / (double)new_height, 0, |
877 | move ( cx, cy); |
455 | 0, 0, 1 |
878 | img->move (cx, cy); |
456 | }; |
|
|
457 | |
879 | |
458 | return transform (new_width, new_height, matrix); |
880 | return img; |
459 | } |
881 | } |
460 | |
882 | |
461 | rxvt_img * |
883 | rxvt_img * |
462 | rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) |
|
|
463 | { |
|
|
464 | double s = sin (phi); |
|
|
465 | double c = cos (phi); |
|
|
466 | |
|
|
467 | double matrix[9] = { |
|
|
468 | c, -s, -c * x + s * y + x, |
|
|
469 | s, c, -s * x - c * y + y, |
|
|
470 | 0, 0, 1 |
|
|
471 | }; |
|
|
472 | |
|
|
473 | return transform (new_width, new_height, matrix); |
|
|
474 | } |
|
|
475 | |
|
|
476 | rxvt_img * |
|
|
477 | rxvt_img::convert_to (XRenderPictFormat *new_format, const rxvt_color &bg) |
884 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
478 | { |
885 | { |
479 | if (new_format == format) |
886 | if (new_format == format) |
480 | return clone (); |
887 | return clone (); |
481 | |
888 | |
482 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h); |
889 | composer cc (this, new rxvt_img (s, new_format, x, y, w, h, repeat)); |
483 | img->alloc (); |
|
|
484 | |
890 | |
485 | Display *dpy = s->display->dpy; |
|
|
486 | Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0); |
|
|
487 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
488 | int op = PictOpSrc; |
891 | int op = PictOpSrc; |
489 | |
892 | |
490 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
893 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
491 | { |
894 | { |
492 | // does it have to be that complicated |
895 | // does it have to be that complicated |
493 | rgba c; |
|
|
494 | bg.get (c); |
|
|
495 | |
|
|
496 | XRenderColor rc = { c.r, c.g, c.b, 0xffff }; |
896 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
497 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
897 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h); |
498 | |
898 | |
499 | op = PictOpOver; |
899 | op = PictOpOver; |
500 | } |
900 | } |
501 | |
901 | |
502 | XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
902 | XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
503 | |
903 | |
504 | XRenderFreePicture (dpy, src); |
|
|
505 | XRenderFreePicture (dpy, dst); |
|
|
506 | |
|
|
507 | return img; |
904 | return cc; |
508 | } |
905 | } |
509 | |
906 | |
510 | rxvt_img * |
907 | rxvt_img * |
511 | rxvt_img::blend (rxvt_img *img, double factor) |
908 | rxvt_img::tint (const rgba &c) |
512 | { |
909 | { |
513 | rxvt_img *img2 = clone (); |
910 | composer cc (this); |
514 | Display *dpy = s->display->dpy; |
911 | cc.mask (true); |
515 | Picture src = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
912 | cc.fill (c); |
516 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
517 | Picture mask = create_xrender_mask (dpy, img->pm, False); |
|
|
518 | |
913 | |
519 | XRenderColor mask_c; |
|
|
520 | |
|
|
521 | mask_c.alpha = float_to_component (factor); |
|
|
522 | mask_c.red = |
|
|
523 | mask_c.green = |
|
|
524 | mask_c.blue = 0; |
|
|
525 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
526 | |
|
|
527 | XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
914 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
528 | |
915 | |
529 | XRenderFreePicture (dpy, src); |
|
|
530 | XRenderFreePicture (dpy, dst); |
|
|
531 | XRenderFreePicture (dpy, mask); |
|
|
532 | |
|
|
533 | return img2; |
916 | return cc; |
|
|
917 | } |
|
|
918 | |
|
|
919 | rxvt_img * |
|
|
920 | rxvt_img::filter (const char *name, int nparams, nv *params) |
|
|
921 | { |
|
|
922 | composer cc (this); |
|
|
923 | |
|
|
924 | XFixed *xparams = rxvt_temp_buf<XFixed> (nparams); |
|
|
925 | |
|
|
926 | for (int i = 0; i < nparams; ++i) |
|
|
927 | xparams [i] = XDoubleToFixed (params [i]); |
|
|
928 | |
|
|
929 | XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams); |
|
|
930 | |
|
|
931 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
932 | |
|
|
933 | return cc; |
534 | } |
934 | } |
535 | |
935 | |
536 | #endif |
936 | #endif |
537 | |
937 | |