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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 | |
| 7 | #define float_to_component(d) ((d) * 65535.99) |
31 | typedef rxvt_img::nv nv; |
| 8 | |
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 | |
| 9 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height) |
251 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
| 10 | : s(screen), w(width), h(height), format(format), shared(false) |
252 | : d(screen->display), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
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253 | pm(0), ref(0) |
| 11 | { |
254 | { |
| 12 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
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| 13 | } |
255 | } |
| 14 | |
256 | |
| 15 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) |
257 | rxvt_img::rxvt_img (rxvt_display *display, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
| 16 | : s(screen), pm(pixmap), w(width), h(height), format(format), shared(false) |
258 | : d(display), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
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259 | pm(0), ref(0) |
| 17 | { |
260 | { |
| 18 | } |
261 | } |
| 19 | |
262 | |
| 20 | rxvt_img * |
263 | rxvt_img::rxvt_img (const rxvt_img &img) |
| 21 | rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
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) |
| 22 | { |
265 | { |
| 23 | GError *err; |
266 | ++ref->cnt; |
| 24 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
267 | } |
| 25 | |
268 | |
| 26 | if (!pb) |
269 | rxvt_img * |
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270 | rxvt_img::new_from_root (rxvt_screen *s) |
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271 | { |
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272 | Display *dpy = s->dpy; |
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273 | unsigned int root_pm_w, root_pm_h; |
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274 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]); |
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275 | if (root_pixmap == None) |
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276 | root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]); |
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277 | |
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278 | if (root_pixmap == None) |
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279 | return 0; |
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280 | |
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281 | Window wdummy; |
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282 | int idummy; |
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283 | unsigned int udummy; |
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284 | |
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285 | if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy)) |
| 27 | return 0; |
286 | return 0; |
| 28 | |
287 | |
| 29 | rxvt_img *img = new rxvt_img ( |
288 | rxvt_img *img = new rxvt_img ( |
| 30 | s, |
289 | s, |
| 31 | XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), |
290 | XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), |
| 32 | gdk_pixbuf_get_width (pb), |
291 | 0, |
| 33 | gdk_pixbuf_get_height (pb) |
292 | 0, |
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293 | root_pm_w, |
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294 | root_pm_h |
| 34 | ); |
295 | ); |
| 35 | |
296 | |
| 36 | img->render (pb, 0, 0, img->w, img->h, 0, 0); |
297 | img->pm = root_pixmap; |
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298 | img->ref = new pixref (root_pm_w, root_pm_h); |
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299 | img->ref->ours = false; |
| 37 | |
300 | |
| 38 | return img; |
301 | return img; |
| 39 | } |
302 | } |
| 40 | |
303 | |
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304 | # if HAVE_PIXBUF |
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305 | |
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306 | rxvt_img * |
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307 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
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308 | { |
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309 | Display *dpy = s->dpy; |
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310 | |
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311 | int width = gdk_pixbuf_get_width (pb); |
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312 | int height = gdk_pixbuf_get_height (pb); |
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313 | |
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314 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
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315 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
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316 | |
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317 | // since we require rgb24/argb32 formats from xrender we assume |
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318 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
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319 | |
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320 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
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321 | |
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322 | XImage xi; |
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323 | |
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324 | xi.width = width; |
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325 | xi.height = height; |
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326 | xi.xoffset = 0; |
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327 | xi.format = ZPixmap; |
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328 | xi.byte_order = ImageByteOrder (dpy); |
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329 | xi.bitmap_unit = 0; //XY only, unused |
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330 | xi.bitmap_bit_order = 0; //XY only, unused |
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331 | xi.bitmap_pad = BitmapPad (dpy); |
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332 | xi.depth = 32; |
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333 | xi.bytes_per_line = 0; |
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334 | xi.bits_per_pixel = 32; //Z only |
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335 | xi.red_mask = 0x00000000; //Z only, unused |
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336 | xi.green_mask = 0x00000000; //Z only, unused |
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337 | xi.blue_mask = 0x00000000; //Z only, unused |
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338 | xi.obdata = 0; // probably unused |
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339 | |
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340 | bool byte_order_mismatch = byte_order != xi.byte_order; |
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341 | |
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342 | if (!XInitImage (&xi)) |
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343 | rxvt_fatal ("unable to initialise ximage, please report.\n"); |
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344 | |
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345 | if (height > INT_MAX / xi.bytes_per_line) |
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346 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
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347 | |
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348 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
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349 | |
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350 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
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351 | bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb); |
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352 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
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353 | |
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354 | char *line = xi.data; |
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355 | |
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356 | for (int y = 0; y < height; y++) |
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357 | { |
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358 | unsigned char *src = row; |
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359 | uint32_t *dst = (uint32_t *)line; |
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360 | |
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361 | for (int x = 0; x < width; x++) |
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362 | { |
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363 | uint8_t r = *src++; |
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364 | uint8_t g = *src++; |
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365 | uint8_t b = *src++; |
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366 | uint8_t a = *src; |
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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 | |
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376 | uint32_t v = (a << 24) | (r << 16) | (g << 8) | b; |
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377 | |
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378 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
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379 | v = ecb_bswap32 (v); |
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380 | |
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381 | *dst++ = v; |
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382 | } |
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383 | |
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384 | row += rowstride; |
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385 | line += xi.bytes_per_line; |
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386 | } |
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387 | |
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388 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height); |
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389 | img->alloc (); |
|
|
390 | |
|
|
391 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
|
|
392 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
|
|
393 | XFreeGC (dpy, gc); |
|
|
394 | |
|
|
395 | free (xi.data); |
|
|
396 | |
|
|
397 | return img; |
|
|
398 | } |
|
|
399 | |
|
|
400 | rxvt_img * |
|
|
401 | rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
|
|
402 | { |
|
|
403 | GError *err = 0; |
|
|
404 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
|
|
405 | |
|
|
406 | if (!pb) |
|
|
407 | try |
|
|
408 | { |
|
|
409 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
|
|
410 | } |
|
|
411 | catch (...) |
|
|
412 | { |
|
|
413 | g_error_free (err); |
|
|
414 | throw; |
|
|
415 | } |
|
|
416 | |
|
|
417 | rxvt_img *img = new_from_pixbuf (s, pb); |
|
|
418 | |
|
|
419 | g_object_unref (pb); |
|
|
420 | |
|
|
421 | return img; |
|
|
422 | } |
|
|
423 | |
|
|
424 | # endif |
|
|
425 | |
|
|
426 | void |
|
|
427 | rxvt_img::destroy () |
|
|
428 | { |
|
|
429 | if (--ref->cnt) |
|
|
430 | return; |
|
|
431 | |
|
|
432 | if (pm && ref->ours) |
|
|
433 | XFreePixmap (d->dpy, pm); |
|
|
434 | |
|
|
435 | delete ref; |
|
|
436 | } |
|
|
437 | |
| 41 | rxvt_img::~rxvt_img () |
438 | rxvt_img::~rxvt_img () |
| 42 | { |
439 | { |
| 43 | if (!shared) |
440 | destroy (); |
| 44 | XFreePixmap (s->display->dpy, pm); |
|
|
| 45 | } |
441 | } |
| 46 | |
442 | |
| 47 | void |
443 | void |
| 48 | rxvt_img::fill (const rxvt_color &c) |
444 | rxvt_img::alloc () |
| 49 | { |
445 | { |
| 50 | XGCValues gcv; |
446 | pm = XCreatePixmap (d->dpy, d->root, w, h, format->depth); |
| 51 | gcv.foreground = c; |
447 | ref = new pixref (w, h); |
| 52 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
448 | } |
| 53 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
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 | |
|
|
459 | Picture |
|
|
460 | rxvt_img::picture () |
|
|
461 | { |
|
|
462 | Display *dpy = d->dpy; |
|
|
463 | |
|
|
464 | XRenderPictureAttributes pa; |
|
|
465 | pa.repeat = repeat; |
|
|
466 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
|
|
467 | |
|
|
468 | return pic; |
|
|
469 | } |
|
|
470 | |
|
|
471 | void |
|
|
472 | rxvt_img::unshare () |
|
|
473 | { |
|
|
474 | if (ref->cnt == 1 && ref->ours) |
|
|
475 | return; |
|
|
476 | |
|
|
477 | Pixmap pm2 = XCreatePixmap (d->dpy, d->root, ref->w, ref->h, format->depth); |
|
|
478 | GC gc = XCreateGC (d->dpy, pm, 0, 0); |
|
|
479 | XCopyArea (d->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
| 54 | XFreeGC (s->display->dpy, gc); |
480 | XFreeGC (d->dpy, gc); |
|
|
481 | |
|
|
482 | destroy (); |
|
|
483 | |
|
|
484 | pm = pm2; |
|
|
485 | ref = new pixref (ref->w, ref->h); |
|
|
486 | } |
|
|
487 | |
|
|
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 |
|
|
500 | rxvt_img::fill (const rgba &c) |
|
|
501 | { |
|
|
502 | fill (c, 0, 0, w, h); |
|
|
503 | } |
|
|
504 | |
|
|
505 | void |
|
|
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; |
| 55 | } |
521 | } |
| 56 | |
522 | |
| 57 | static void |
523 | static void |
| 58 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
524 | get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params) |
| 59 | { |
525 | { |
| 60 | double sigma = radius / 2.0; |
526 | nv sigma = radius / 2.0; |
| 61 | double scale = sqrt (2.0 * M_PI) * sigma; |
527 | nv scale = sqrt (2.0 * M_PI) * sigma; |
| 62 | double sum = 0.0; |
528 | nv sum = 0.0; |
| 63 | |
529 | |
| 64 | for (int i = 0; i < width; i++) |
530 | for (int i = 0; i < width; i++) |
| 65 | { |
531 | { |
| 66 | double x = i - width / 2; |
532 | nv x = i - width / 2; |
| 67 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
533 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
| 68 | sum += kernel[i]; |
534 | sum += kernel[i]; |
| 69 | } |
535 | } |
| 70 | |
536 | |
| 71 | params[0] = XDoubleToFixed (width); |
537 | params[0] = XDoubleToFixed (width); |
| … | |
… | |
| 73 | |
539 | |
| 74 | for (int i = 0; i < width; i++) |
540 | for (int i = 0; i < width; i++) |
| 75 | params[i+2] = XDoubleToFixed (kernel[i] / sum); |
541 | params[i+2] = XDoubleToFixed (kernel[i] / sum); |
| 76 | } |
542 | } |
| 77 | |
543 | |
| 78 | void |
544 | rxvt_img * |
| 79 | rxvt_img::blur (int rh, int rv) |
545 | rxvt_img::blur (int rh, int rv) |
| 80 | { |
546 | { |
| 81 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
547 | if (!(d->flags & DISPLAY_HAS_RENDER_CONV)) |
| 82 | return; |
548 | return clone (); |
| 83 | |
549 | |
| 84 | Display *dpy = s->display->dpy; |
550 | Display *dpy = d->dpy; |
| 85 | int size = max (rh, rv) * 2 + 1; |
551 | int size = max (rh, rv) * 2 + 1; |
| 86 | double *kernel = (double *)malloc (size * sizeof (double)); |
552 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
| 87 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
553 | XFixed *params = rxvt_temp_buf<XFixed> (size + 2); |
|
|
554 | rxvt_img *img = new_empty (); |
| 88 | |
555 | |
| 89 | XRenderPictureAttributes pa; |
556 | XRenderPictureAttributes pa; |
| 90 | |
|
|
| 91 | pa.repeat = RepeatPad; |
557 | pa.repeat = RepeatPad; |
| 92 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
558 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
|
|
559 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
560 | |
| 93 | Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth); |
561 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
| 94 | Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa); |
562 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
| 95 | XFreePixmap (dpy, tmp); |
563 | XFreePixmap (dpy, tmp_pm); |
| 96 | |
564 | |
| 97 | if (kernel && params) |
565 | if (kernel && params) |
| 98 | { |
566 | { |
| 99 | size = rh * 2 + 1; |
567 | size = rh * 2 + 1; |
| 100 | get_gaussian_kernel (rh, size, kernel, params); |
568 | get_gaussian_kernel (rh, size, kernel, params); |
| 101 | |
569 | |
| 102 | XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
570 | XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
| 103 | XRenderComposite (dpy, |
571 | XRenderComposite (dpy, |
| 104 | PictOpSrc, |
572 | PictOpSrc, |
| 105 | src, |
573 | src, |
|
|
574 | None, |
|
|
575 | tmp, |
|
|
576 | 0, 0, |
|
|
577 | 0, 0, |
|
|
578 | 0, 0, |
|
|
579 | w, h); |
|
|
580 | |
|
|
581 | size = rv * 2 + 1; |
|
|
582 | get_gaussian_kernel (rv, size, kernel, params); |
|
|
583 | ::swap (params[0], params[1]); |
|
|
584 | |
|
|
585 | XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2); |
|
|
586 | XRenderComposite (dpy, |
|
|
587 | PictOpSrc, |
|
|
588 | tmp, |
| 106 | None, |
589 | None, |
| 107 | dst, |
590 | dst, |
| 108 | 0, 0, |
591 | 0, 0, |
| 109 | 0, 0, |
592 | 0, 0, |
| 110 | 0, 0, |
593 | 0, 0, |
| 111 | w, h); |
594 | w, h); |
| 112 | |
|
|
| 113 | ::swap (src, dst); |
|
|
| 114 | |
|
|
| 115 | size = rv * 2 + 1; |
|
|
| 116 | get_gaussian_kernel (rv, size, kernel, params); |
|
|
| 117 | ::swap (params[0], params[1]); |
|
|
| 118 | |
|
|
| 119 | XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
|
|
| 120 | XRenderComposite (dpy, |
|
|
| 121 | PictOpSrc, |
|
|
| 122 | src, |
|
|
| 123 | None, |
|
|
| 124 | dst, |
|
|
| 125 | 0, 0, |
|
|
| 126 | 0, 0, |
|
|
| 127 | 0, 0, |
|
|
| 128 | w, h); |
|
|
| 129 | } |
595 | } |
| 130 | |
596 | |
| 131 | free (kernel); |
597 | free (kernel); |
| 132 | free (params); |
598 | |
| 133 | XRenderFreePicture (dpy, src); |
599 | XRenderFreePicture (dpy, src); |
| 134 | XRenderFreePicture (dpy, dst); |
600 | XRenderFreePicture (dpy, dst); |
| 135 | } |
601 | XRenderFreePicture (dpy, tmp); |
| 136 | |
602 | |
| 137 | static Picture |
|
|
| 138 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) |
|
|
| 139 | { |
|
|
| 140 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
|
|
| 141 | |
|
|
| 142 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
|
|
| 143 | XRenderPictureAttributes pa; |
|
|
| 144 | pa.repeat = True; |
|
|
| 145 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
|
|
| 146 | |
|
|
| 147 | XFreePixmap (dpy, pixmap); |
|
|
| 148 | |
|
|
| 149 | return mask; |
603 | return img; |
|
|
604 | } |
|
|
605 | |
|
|
606 | rxvt_img * |
|
|
607 | rxvt_img::muladd (nv mul, nv add) |
|
|
608 | { |
|
|
609 | // STEP 1: double the image width, fill all odd columns with white (==1) |
|
|
610 | |
|
|
611 | composer cc (this, new rxvt_img (d, format, 0, 0, w * 2, h, repeat)); |
|
|
612 | |
|
|
613 | // why the hell does XRenderSetPictureTransform want a writable matrix :( |
|
|
614 | // that keeps us from just static const'ing this matrix. |
|
|
615 | XTransform h_double = { |
|
|
616 | 0x08000, 0, 0, |
|
|
617 | 0, 0x10000, 0, |
|
|
618 | 0, 0, 0x10000 |
|
|
619 | }; |
|
|
620 | |
|
|
621 | XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0); |
|
|
622 | XRenderSetPictureTransform (cc.dpy, cc.src, &h_double); |
|
|
623 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
624 | |
|
|
625 | cc.mask (false, 2, 1); |
|
|
626 | |
|
|
627 | static const XRenderColor c0 = { 0, 0, 0, 0 }; |
|
|
628 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c0, 0, 0, 1, 1); |
|
|
629 | static const XRenderColor c1 = { 65535, 65535, 65535, 65535 }; |
|
|
630 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c1, 1, 0, 1, 1); |
|
|
631 | |
|
|
632 | Picture white = XRenderCreateSolidFill (cc.dpy, &c1); |
|
|
633 | |
|
|
634 | XRenderComposite (cc.dpy, PictOpOver, white, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
635 | |
|
|
636 | XRenderFreePicture (cc.dpy, white); |
|
|
637 | |
|
|
638 | // STEP 2: convolve the image with a 3x1 filter |
|
|
639 | // a 2x1 filter would obviously suffice, but given the total lack of specification |
|
|
640 | // for xrender, I expect different xrender implementations to randomly diverge. |
|
|
641 | // we also halve the image, and hope for the best (again, for lack of specs). |
|
|
642 | composer cc2 (cc.dstimg); |
|
|
643 | |
|
|
644 | XFixed kernel [] = { |
|
|
645 | XDoubleToFixed (3), XDoubleToFixed (1), |
|
|
646 | XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add) |
|
|
647 | }; |
|
|
648 | |
|
|
649 | XTransform h_halve = { |
|
|
650 | 0x20000, 0, 0, |
|
|
651 | 0, 0x10000, 0, |
|
|
652 | 0, 0, 0x10000 |
|
|
653 | }; |
|
|
654 | |
|
|
655 | XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0); |
|
|
656 | XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve); |
|
|
657 | XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel)); |
|
|
658 | |
|
|
659 | XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
660 | |
|
|
661 | return cc2; |
|
|
662 | } |
|
|
663 | |
|
|
664 | ecb_noinline static void |
|
|
665 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
|
|
666 | { |
|
|
667 | int32_t x = clamp (c, cl0, cl1); |
|
|
668 | c -= x; |
|
|
669 | xc = x; |
|
|
670 | } |
|
|
671 | |
|
|
672 | ecb_noinline static bool |
|
|
673 | 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) |
|
|
674 | { |
|
|
675 | extract (cl0, cl1, r, xr); |
|
|
676 | extract (cl0, cl1, g, xg); |
|
|
677 | extract (cl0, cl1, b, xb); |
|
|
678 | extract (cl0, cl1, a, xa); |
|
|
679 | |
|
|
680 | return xr | xg | xb | xa; |
| 150 | } |
681 | } |
| 151 | |
682 | |
| 152 | void |
683 | void |
| 153 | rxvt_img::brightness (double r, double g, double b, double a) |
684 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
| 154 | { |
685 | { |
|
|
686 | unshare (); |
|
|
687 | |
| 155 | Display *dpy = s->display->dpy; |
688 | Display *dpy = d->dpy; |
| 156 | Picture src = create_xrender_mask (dpy, pm, True); |
|
|
| 157 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
689 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
| 158 | |
690 | |
|
|
691 | // loop should not be needed for brightness, as only -1..1 makes sense |
|
|
692 | //while (r | g | b | a) |
|
|
693 | { |
| 159 | XRenderColor mask_c; |
694 | XRenderColor mask_c; |
| 160 | mask_c.red = float_to_component (r); |
695 | |
| 161 | mask_c.green = float_to_component (g); |
696 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
| 162 | mask_c.blue = float_to_component (b); |
|
|
| 163 | mask_c.alpha = float_to_component (a); |
|
|
| 164 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
697 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
| 165 | |
698 | |
| 166 | XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
699 | if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
700 | { |
|
|
701 | XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
|
|
702 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
703 | mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing |
|
|
704 | mask_c.green = -mask_c.green; |
|
|
705 | mask_c.blue = -mask_c.blue; |
|
|
706 | mask_c.alpha = -mask_c.alpha; |
|
|
707 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
|
|
708 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
709 | } |
|
|
710 | } |
|
|
711 | |
|
|
712 | XRenderFreePicture (dpy, dst); |
| 167 | } |
713 | } |
| 168 | |
714 | |
| 169 | void |
715 | void |
| 170 | rxvt_img::contrast (double r, double g, double b, double a) |
716 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
| 171 | { |
717 | { |
| 172 | if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
718 | if (r < 0 || g < 0 || b < 0 || a < 0) |
| 173 | return; |
719 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
| 174 | |
720 | |
| 175 | Display *dpy = s->display->dpy; |
721 | // premultiply (yeah, these are not exact, sue me or fix it) |
| 176 | Picture src = create_xrender_mask (dpy, pm, True); |
722 | r = (r * (a >> 8)) >> 8; |
| 177 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
723 | g = (g * (a >> 8)) >> 8; |
|
|
724 | b = (b * (a >> 8)) >> 8; |
| 178 | |
725 | |
|
|
726 | composer cc (this); |
|
|
727 | rxvt_img *img = cc; |
|
|
728 | img->fill (rgba (0, 0, 0, 0)); |
|
|
729 | |
|
|
730 | cc.mask (true); |
|
|
731 | |
|
|
732 | //TODO: this operator does not yet implement some useful contrast |
|
|
733 | while (r | g | b | a) |
|
|
734 | { |
| 179 | XRenderColor mask_c; |
735 | XRenderColor mask_c; |
| 180 | mask_c.red = float_to_component (r); |
736 | |
| 181 | mask_c.green = float_to_component (g); |
737 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
| 182 | mask_c.blue = float_to_component (b); |
738 | { |
| 183 | mask_c.alpha = float_to_component (a); |
|
|
| 184 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
739 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); |
| 185 | |
|
|
| 186 | XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
740 | XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
741 | } |
|
|
742 | } |
|
|
743 | |
|
|
744 | ::swap (img->ref, ref); |
|
|
745 | ::swap (img->pm , pm ); |
|
|
746 | |
|
|
747 | delete img; |
| 187 | } |
748 | } |
| 188 | |
749 | |
| 189 | void |
750 | void |
| 190 | rxvt_img::render (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) |
751 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
| 191 | { |
752 | { |
| 192 | //TODO |
753 | unshare (); |
| 193 | } |
|
|
| 194 | |
754 | |
|
|
755 | composer cc (img, this); |
|
|
756 | |
|
|
757 | if (mask != 1.) |
|
|
758 | cc.mask (rgba (0, 0, 0, float_to_component (mask))); |
|
|
759 | |
|
|
760 | XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
|
|
761 | } |
|
|
762 | |
| 195 | rxvt_img * |
763 | rxvt_img * |
| 196 | rxvt_img::copy () |
764 | rxvt_img::clone () |
| 197 | { |
765 | { |
| 198 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
766 | return new rxvt_img (*this); |
| 199 | Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth); |
|
|
| 200 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0); |
|
|
| 201 | XFreeGC (s->display->dpy, gc); |
|
|
| 202 | return new rxvt_img (s, format, w, h, pm2); |
|
|
| 203 | } |
767 | } |
| 204 | |
768 | |
| 205 | rxvt_img * |
769 | rxvt_img * |
| 206 | rxvt_img::transform (int new_width, int new_height, double matrix[16]) |
770 | rxvt_img::reify () |
| 207 | { |
771 | { |
| 208 | //TODO |
772 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
|
|
773 | return clone (); |
|
|
774 | |
|
|
775 | // add an alpha channel if... |
|
|
776 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
|
|
777 | && (x || y) // we need one because of non-zero offset |
|
|
778 | && repeat == RepeatNone; // and we have no good pixels to fill with |
|
|
779 | |
|
|
780 | composer cc (this, new rxvt_img (d, alpha ? find_alpha_format_for (d->dpy, format) : format, |
|
|
781 | 0, 0, w, h, repeat)); |
|
|
782 | |
|
|
783 | if (repeat == RepeatNone) |
|
|
784 | { |
|
|
785 | XRenderColor rc = { 0, 0, 0, 0 }; |
|
|
786 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
|
|
787 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
|
|
788 | } |
|
|
789 | else |
|
|
790 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h); |
|
|
791 | |
|
|
792 | return cc; |
|
|
793 | } |
|
|
794 | |
|
|
795 | rxvt_img * |
|
|
796 | rxvt_img::sub_rect (int x, int y, int width, int height) |
|
|
797 | { |
|
|
798 | rxvt_img *img = clone (); |
|
|
799 | |
|
|
800 | img->x -= x; |
|
|
801 | img->y -= y; |
|
|
802 | |
|
|
803 | if (w != width || h != height) |
|
|
804 | { |
|
|
805 | img->w = width; |
|
|
806 | img->h = height; |
|
|
807 | |
|
|
808 | rxvt_img *img2 = img->reify (); |
|
|
809 | delete img; |
|
|
810 | img = img2; |
|
|
811 | } |
|
|
812 | |
|
|
813 | return img; |
|
|
814 | } |
|
|
815 | |
|
|
816 | rxvt_img * |
|
|
817 | rxvt_img::transform (const nv matrix[3][3]) |
|
|
818 | { |
|
|
819 | return transform (mat3x3 (&matrix[0][0])); |
|
|
820 | } |
|
|
821 | |
|
|
822 | rxvt_img * |
|
|
823 | rxvt_img::transform (const nv *matrix) |
|
|
824 | { |
|
|
825 | mat3x3 m (matrix); |
|
|
826 | |
|
|
827 | // calculate new pixel bounding box coordinates |
|
|
828 | nv rmin[2], rmax[2]; |
|
|
829 | |
|
|
830 | for (int i = 0; i < 2; ++i) |
|
|
831 | { |
|
|
832 | nv v; |
|
|
833 | |
|
|
834 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
|
|
835 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
836 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
837 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
838 | } |
|
|
839 | |
|
|
840 | float sx = rmin [0] - x; |
|
|
841 | float sy = rmin [1] - y; |
|
|
842 | |
|
|
843 | // TODO: adjust matrix for subpixel accuracy |
|
|
844 | int nx = floor (rmin [0]); |
|
|
845 | int ny = floor (rmin [1]); |
|
|
846 | |
|
|
847 | int new_width = ceil (rmax [0] - rmin [0]); |
|
|
848 | int new_height = ceil (rmax [1] - rmin [1]); |
|
|
849 | |
|
|
850 | mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse (); |
|
|
851 | |
|
|
852 | composer cc (this, new rxvt_img (d, format, nx, ny, new_width, new_height, repeat)); |
|
|
853 | |
|
|
854 | XTransform xfrm; |
|
|
855 | |
|
|
856 | for (int i = 0; i < 3; ++i) |
|
|
857 | for (int j = 0; j < 3; ++j) |
|
|
858 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
|
|
859 | |
|
|
860 | XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0); |
|
|
861 | XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm); |
|
|
862 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
|
|
863 | |
|
|
864 | return cc; |
| 209 | } |
865 | } |
| 210 | |
866 | |
| 211 | rxvt_img * |
867 | rxvt_img * |
| 212 | rxvt_img::scale (int new_width, int new_height) |
868 | rxvt_img::scale (int new_width, int new_height) |
| 213 | { |
869 | { |
| 214 | // use transform |
870 | if (w == new_width && h == new_height) |
| 215 | //TODO |
871 | return clone (); |
| 216 | } |
|
|
| 217 | |
872 | |
| 218 | rxvt_img * |
873 | int old_repeat_mode = repeat; |
| 219 | rxvt_img::convert_to (XRenderPictFormat *new_format) |
874 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
| 220 | { |
|
|
| 221 | Display *dpy = s->display->dpy; |
|
|
| 222 | Pixmap new_pm = XCreatePixmap (dpy, pm, w, h, new_format->depth); |
|
|
| 223 | Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0); |
|
|
| 224 | Picture dst = XRenderCreatePicture (dpy, new_pm, new_format, 0, 0); |
|
|
| 225 | |
875 | |
| 226 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
876 | rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h)); |
| 227 | |
877 | |
| 228 | XRenderFreePicture (dpy, src); |
878 | repeat = old_repeat_mode; |
| 229 | XRenderFreePicture (dpy, dst); |
879 | img->repeat = repeat; |
| 230 | |
|
|
| 231 | rxvt_img *img = new rxvt_img ( |
|
|
| 232 | s, |
|
|
| 233 | new_format, |
|
|
| 234 | w, |
|
|
| 235 | h, |
|
|
| 236 | new_pm |
|
|
| 237 | ); |
|
|
| 238 | |
880 | |
| 239 | return img; |
881 | return img; |
| 240 | } |
882 | } |
| 241 | |
883 | |
|
|
884 | rxvt_img * |
|
|
885 | rxvt_img::rotate (int cx, int cy, nv phi) |
|
|
886 | { |
|
|
887 | move (-cx, -cy); |
|
|
888 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
|
|
889 | move ( cx, cy); |
|
|
890 | img->move (cx, cy); |
|
|
891 | |
|
|
892 | return img; |
|
|
893 | } |
|
|
894 | |
|
|
895 | rxvt_img * |
|
|
896 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
|
|
897 | { |
|
|
898 | if (new_format == format) |
|
|
899 | return clone (); |
|
|
900 | |
|
|
901 | composer cc (this, new rxvt_img (d, new_format, x, y, w, h, repeat)); |
|
|
902 | |
|
|
903 | int op = PictOpSrc; |
|
|
904 | |
|
|
905 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
|
|
906 | { |
|
|
907 | // does it have to be that complicated |
|
|
908 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
|
|
909 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h); |
|
|
910 | |
|
|
911 | op = PictOpOver; |
|
|
912 | } |
|
|
913 | |
|
|
914 | XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
915 | |
|
|
916 | return cc; |
|
|
917 | } |
|
|
918 | |
|
|
919 | rxvt_img * |
|
|
920 | rxvt_img::tint (const rgba &c) |
|
|
921 | { |
|
|
922 | composer cc (this); |
|
|
923 | cc.mask (true); |
|
|
924 | cc.fill (c); |
|
|
925 | |
|
|
926 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
927 | |
|
|
928 | return cc; |
|
|
929 | } |
|
|
930 | |
|
|
931 | rxvt_img * |
|
|
932 | rxvt_img::shade (nv factor, rgba c) |
|
|
933 | { |
|
|
934 | clamp_it (factor, -1., 1.); |
|
|
935 | factor++; |
|
|
936 | |
|
|
937 | if (factor > 1) |
|
|
938 | { |
|
|
939 | c.r = c.r * (2 - factor); |
|
|
940 | c.g = c.g * (2 - factor); |
|
|
941 | c.b = c.b * (2 - factor); |
|
|
942 | } |
|
|
943 | else |
|
|
944 | { |
|
|
945 | c.r = c.r * factor; |
|
|
946 | c.g = c.g * factor; |
|
|
947 | c.b = c.b * factor; |
|
|
948 | } |
|
|
949 | |
|
|
950 | rxvt_img *img = this->tint (c); |
|
|
951 | |
|
|
952 | if (factor > 1) |
|
|
953 | { |
|
|
954 | c.a = 0xffff; |
|
|
955 | c.r = |
|
|
956 | c.g = |
|
|
957 | c.b = 0xffff * (factor - 1); |
|
|
958 | |
|
|
959 | img->brightness (c.r, c.g, c.b, c.a); |
|
|
960 | } |
|
|
961 | |
|
|
962 | return img; |
|
|
963 | } |
|
|
964 | |
|
|
965 | rxvt_img * |
|
|
966 | rxvt_img::filter (const char *name, int nparams, nv *params) |
|
|
967 | { |
|
|
968 | composer cc (this); |
|
|
969 | |
|
|
970 | XFixed *xparams = rxvt_temp_buf<XFixed> (nparams); |
|
|
971 | |
|
|
972 | for (int i = 0; i < nparams; ++i) |
|
|
973 | xparams [i] = XDoubleToFixed (params [i]); |
|
|
974 | |
|
|
975 | XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams); |
|
|
976 | |
|
|
977 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
978 | |
|
|
979 | return cc; |
|
|
980 | } |
|
|
981 | |
| 242 | #endif |
982 | #endif |
| 243 | |
983 | |
