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1 | #include <string.h> |
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2 | #include <math.h> |
1 | #include "../config.h" |
3 | #include "../config.h" |
2 | #include "rxvt.h" |
4 | #include "rxvt.h" |
3 | |
5 | |
4 | #if HAVE_IMG |
6 | #if HAVE_IMG |
5 | |
7 | |
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8 | typedef rxvt_img::nv nv; |
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9 | |
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10 | namespace |
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11 | { |
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12 | |
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13 | struct mat3x3 |
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14 | { |
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15 | nv v[3][3]; |
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16 | |
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17 | mat3x3 () |
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18 | { |
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19 | } |
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20 | |
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21 | mat3x3 (const nv *matrix) |
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22 | { |
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23 | memcpy (v, matrix, sizeof (v)); |
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24 | } |
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25 | |
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26 | mat3x3 (nv v11, nv v12, nv v13, nv v21, nv v22, nv v23, nv v31, nv v32, nv v33) |
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27 | { |
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28 | v[0][0] = v11; v[0][1] = v12; v[0][2] = v13; |
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29 | v[1][0] = v21; v[1][1] = v22; v[1][2] = v23; |
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30 | v[2][0] = v31; v[2][1] = v32; v[2][2] = v33; |
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31 | } |
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32 | |
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33 | mat3x3 invert (); |
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34 | |
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35 | nv *operator [](int i) { return &v[i][0]; } |
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36 | const nv *operator [](int i) const { return &v[i][0]; } |
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37 | |
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38 | operator const nv * () const { return &v[0][0]; } |
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39 | operator nv * () { return &v[0][0]; } |
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40 | |
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41 | // quite inefficient, hopefully gcc pulls the w calc out of any loops |
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42 | nv apply1 (int i, nv x, nv y) |
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43 | { |
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44 | mat3x3 &m = *this; |
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45 | |
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46 | nv v = m[i][0] * x + m[i][1] * y + m[i][2]; |
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47 | nv w = m[2][0] * x + m[2][1] * y + m[2][2]; |
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48 | |
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49 | return v * (1. / w); |
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50 | } |
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51 | |
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52 | static mat3x3 translate (nv x, nv y); |
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53 | static mat3x3 scale (nv s, nv t); |
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54 | static mat3x3 rotate (nv phi); |
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55 | }; |
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56 | |
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57 | mat3x3 |
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58 | mat3x3::invert () |
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59 | { |
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60 | mat3x3 &m = *this; |
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61 | mat3x3 inv; |
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62 | |
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63 | nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2]; |
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64 | nv s1 = m[2][1] * m[0][2] - m[2][2] * m[0][1]; |
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65 | nv s2 = m[1][2] * m[0][1] - m[1][1] * m[0][2]; |
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66 | |
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67 | nv invdet = 1. / (m[0][0] * s0 + m[1][0] * s1 + m[2][0] * s2); |
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68 | |
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69 | inv[0][0] = invdet * s0; |
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70 | inv[0][1] = invdet * s1; |
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71 | inv[0][2] = invdet * s2; |
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72 | |
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73 | inv[1][0] = invdet * (m[2][0] * m[1][2] - m[2][2] * m[1][0]); |
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74 | inv[1][1] = invdet * (m[2][2] * m[0][0] - m[2][0] * m[0][2]); |
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75 | inv[1][2] = invdet * (m[1][0] * m[0][2] - m[1][2] * m[0][0]); |
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76 | |
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77 | inv[2][0] = invdet * (m[2][1] * m[1][0] - m[2][0] * m[1][1]); |
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78 | inv[2][1] = invdet * (m[2][0] * m[0][1] - m[2][1] * m[0][0]); |
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79 | inv[2][2] = invdet * (m[1][1] * m[0][0] - m[1][0] * m[0][1]); |
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80 | |
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81 | return inv; |
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82 | } |
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83 | |
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84 | static mat3x3 |
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85 | operator *(const mat3x3 &a, const mat3x3 &b) |
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86 | { |
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87 | mat3x3 r; |
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88 | |
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89 | for (int i = 0; i < 3; ++i) |
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90 | for (int j = 0; j < 3; ++j) |
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91 | r[i][j] = a[i][0] * b[0][j] |
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92 | + a[i][1] * b[1][j] |
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93 | + a[i][2] * b[2][j]; |
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94 | |
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95 | return r; |
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96 | } |
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97 | |
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98 | mat3x3 |
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99 | mat3x3::translate (nv x, nv y) |
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100 | { |
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101 | return mat3x3 ( |
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102 | 1, 0, x, |
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103 | 0, 1, y, |
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104 | 0, 0, 1 |
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105 | ); |
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106 | } |
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107 | |
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108 | mat3x3 |
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109 | mat3x3::scale (nv s, nv t) |
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110 | { |
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111 | return mat3x3 ( |
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112 | s, 0, 0, |
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113 | 0, t, 0, |
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114 | 0, 0, 1 |
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115 | ); |
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116 | } |
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117 | |
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118 | // clockwise |
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119 | mat3x3 |
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120 | mat3x3::rotate (nv phi) |
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121 | { |
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122 | nv s = sin (phi); |
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123 | nv c = cos (phi); |
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124 | |
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125 | return mat3x3 ( |
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126 | c, -s, 0, |
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127 | s, c, 0, |
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128 | 0, 0, 1 |
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129 | ); |
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130 | } |
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131 | |
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132 | } |
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133 | |
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134 | #if 0 |
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135 | struct pict |
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136 | { |
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137 | Display *dpy; |
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138 | Picture pic; |
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139 | |
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140 | operator Picture () const |
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141 | { |
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142 | return pic; |
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143 | } |
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144 | |
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145 | pict () |
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146 | : pic (0) |
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147 | { |
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148 | } |
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149 | |
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150 | pict (rxvt_img *img, XRenderPictFormat *format = 0) |
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151 | : dpy (img->s->display->dpy) |
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152 | { |
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153 | XRenderPictureAttributes pa; |
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154 | pa.repeat = img->repeat; |
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155 | pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa); |
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156 | } |
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157 | |
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158 | ~pict () |
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159 | { |
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160 | if (pic) |
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161 | XRenderFreePicture (dpy, pic); |
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162 | } |
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163 | }; |
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164 | #endif |
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165 | |
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166 | static XRenderPictFormat * |
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167 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
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168 | { |
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169 | if (format->direct.alphaMask) |
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170 | return format; // already has alpha |
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171 | |
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172 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
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173 | if (format->type == PictTypeDirect) |
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174 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
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175 | if (f->direct.alphaMask |
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176 | && f->type == PictTypeDirect |
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177 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
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178 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
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179 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
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180 | return f; |
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181 | |
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182 | // should be a very good fallback |
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183 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
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184 | } |
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185 | |
6 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height) |
186 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
7 | : s(screen), w(width), h(height), format(format), shared(false) |
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8 | { |
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9 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
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10 | } |
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11 | |
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12 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) |
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13 | : s(screen), pm(pixmap), w(width), h(height), format(format), shared(false) |
187 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
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188 | pm(0), ref(0) |
14 | { |
189 | { |
15 | } |
190 | } |
16 | |
191 | |
17 | rxvt_img * |
192 | rxvt_img::rxvt_img (const rxvt_img &img) |
18 | rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
193 | : 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) |
19 | { |
194 | { |
20 | GError *err; |
195 | ++ref->cnt; |
21 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
196 | } |
22 | |
197 | |
23 | if (!pb) |
198 | rxvt_img * |
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199 | rxvt_img::new_from_root (rxvt_screen *s) |
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200 | { |
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201 | Display *dpy = s->display->dpy; |
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202 | unsigned int root_pm_w, root_pm_h; |
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203 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
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204 | if (root_pixmap == None) |
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205 | root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
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206 | |
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207 | if (root_pixmap == None) |
24 | return 0; |
208 | return 0; |
25 | |
209 | |
26 | int w = gdk_pixbuf_get_width (pb); |
210 | Window wdummy; |
27 | int h = gdk_pixbuf_get_height (pb); |
211 | int idummy; |
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212 | unsigned int udummy; |
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213 | |
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214 | if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy)) |
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215 | return 0; |
28 | |
216 | |
29 | rxvt_img *img = new rxvt_img ( |
217 | rxvt_img *img = new rxvt_img ( |
30 | s, |
218 | s, |
31 | XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), |
219 | XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), |
32 | gdk_pixbuf_get_width (pb), |
220 | 0, |
33 | gdk_pixbuf_get_height (pb) |
221 | 0, |
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222 | root_pm_w, |
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223 | root_pm_h |
34 | ); |
224 | ); |
35 | |
225 | |
36 | img->render (pb, 0, 0, w, h, 0, 0); |
226 | img->pm = root_pixmap; |
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227 | img->ref = new pixref (root_pm_w, root_pm_h); |
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228 | img->ref->ours = false; |
37 | |
229 | |
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230 | return img; |
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231 | } |
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232 | |
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233 | # if HAVE_PIXBUF |
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234 | |
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235 | rxvt_img * |
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236 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
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237 | { |
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238 | Display *dpy = s->display->dpy; |
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239 | |
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240 | int width = gdk_pixbuf_get_width (pb); |
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241 | int height = gdk_pixbuf_get_height (pb); |
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242 | |
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243 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
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244 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
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245 | |
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246 | // since we require rgb24/argb32 formats from xrender we assume |
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247 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
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248 | |
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249 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
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250 | |
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251 | XImage xi; |
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252 | |
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253 | xi.width = width; |
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254 | xi.height = height; |
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255 | xi.xoffset = 0; |
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256 | xi.format = ZPixmap; |
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257 | xi.byte_order = ImageByteOrder (dpy); |
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258 | xi.bitmap_unit = 0; //XY only, unused |
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259 | xi.bitmap_bit_order = 0; //XY only, unused |
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260 | xi.bitmap_pad = BitmapPad (dpy); |
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261 | xi.depth = 32; |
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262 | xi.bytes_per_line = 0; |
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263 | xi.bits_per_pixel = 32; //Z only |
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264 | xi.red_mask = 0x00000000; //Z only, unused |
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265 | xi.green_mask = 0x00000000; //Z only, unused |
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266 | xi.blue_mask = 0x00000000; //Z only, unused |
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267 | xi.obdata = 0; // probably unused |
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268 | |
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269 | bool byte_order_mismatch = byte_order != xi.byte_order; |
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270 | |
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271 | if (!XInitImage (&xi)) |
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272 | rxvt_fatal ("unable to initialise ximage, please report.\n"); |
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273 | |
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274 | if (height > INT_MAX / xi.bytes_per_line) |
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275 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
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276 | |
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277 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
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278 | |
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279 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
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280 | bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb); |
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281 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
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282 | |
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283 | char *line = xi.data; |
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284 | |
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285 | for (int y = 0; y < height; y++) |
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286 | { |
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287 | unsigned char *src = row; |
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288 | uint32_t *dst = (uint32_t *)line; |
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289 | |
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290 | if (!pb_has_alpha) |
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291 | for (int x = 0; x < width; x++) |
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292 | { |
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293 | uint8_t r = *src++; |
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294 | uint8_t g = *src++; |
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295 | uint8_t b = *src++; |
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296 | |
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297 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
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298 | |
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299 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
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300 | v = ecb_bswap32 (v); |
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301 | |
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302 | *dst++ = v; |
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303 | } |
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304 | else |
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305 | for (int x = 0; x < width; x++) |
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306 | { |
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307 | uint32_t v = *(uint32_t *)src; src += 4; |
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308 | |
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309 | if (ecb_big_endian ()) |
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310 | v = ecb_bswap32 (v); |
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311 | |
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312 | v = ecb_rotl32 (v, 8); // abgr to bgra |
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313 | |
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314 | if (!byte_order_mismatch) |
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315 | v = ecb_bswap32 (v); |
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316 | |
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317 | *dst++ = v; |
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318 | } |
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319 | |
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320 | row += rowstride; |
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321 | line += xi.bytes_per_line; |
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322 | } |
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323 | |
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324 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height); |
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325 | img->alloc (); |
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326 | |
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327 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
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328 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
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329 | XFreeGC (dpy, gc); |
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330 | |
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331 | free (xi.data); |
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332 | |
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333 | return img; |
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334 | } |
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335 | |
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336 | rxvt_img * |
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337 | rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
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338 | { |
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339 | GError *err = 0; |
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340 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
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341 | |
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342 | if (!pb) |
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343 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
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344 | |
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345 | rxvt_img *img = new_from_pixbuf (s, pb); |
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346 | |
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347 | g_object_unref (pb); |
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348 | |
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349 | return img; |
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350 | } |
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351 | |
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352 | # endif |
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353 | |
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354 | void |
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355 | rxvt_img::destroy () |
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356 | { |
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357 | if (--ref->cnt) |
38 | return img; |
358 | return; |
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359 | |
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360 | if (pm && ref->ours) |
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361 | XFreePixmap (s->display->dpy, pm); |
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362 | |
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363 | delete ref; |
39 | } |
364 | } |
40 | |
365 | |
41 | rxvt_img::~rxvt_img () |
366 | rxvt_img::~rxvt_img () |
42 | { |
367 | { |
43 | if (!shared) |
368 | destroy (); |
44 | XFreePixmap (s->display->dpy, pm); |
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45 | } |
369 | } |
46 | |
370 | |
47 | void |
371 | void |
48 | rxvt_img::fill (const rxvt_color &c) |
372 | rxvt_img::alloc () |
49 | { |
373 | { |
50 | XGCValues gcv; |
374 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
51 | gcv.foreground = c; |
375 | ref = new pixref (w, h); |
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376 | } |
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377 | |
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378 | Picture |
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379 | rxvt_img::picture () |
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380 | { |
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381 | Display *dpy = s->display->dpy; |
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382 | |
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383 | XRenderPictureAttributes pa; |
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384 | pa.repeat = repeat; |
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385 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
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386 | |
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387 | return pic; |
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388 | } |
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389 | |
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390 | void |
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391 | rxvt_img::unshare () |
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392 | { |
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393 | if (ref->cnt == 1 && ref->ours) |
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394 | return; |
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395 | |
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396 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
52 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
397 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
53 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
398 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
54 | XFreeGC (s->display->dpy, gc); |
399 | XFreeGC (s->display->dpy, gc); |
|
|
400 | |
|
|
401 | destroy (); |
|
|
402 | |
|
|
403 | pm = pm2; |
|
|
404 | ref = new pixref (ref->w, ref->h); |
55 | } |
405 | } |
56 | |
406 | |
57 | void |
407 | void |
|
|
408 | rxvt_img::fill (const rgba &c) |
|
|
409 | { |
|
|
410 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
|
|
411 | |
|
|
412 | Display *dpy = s->display->dpy; |
|
|
413 | Picture src = picture (); |
|
|
414 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
|
|
415 | XRenderFreePicture (dpy, src); |
|
|
416 | } |
|
|
417 | |
|
|
418 | void |
|
|
419 | rxvt_img::add_alpha () |
|
|
420 | { |
|
|
421 | if (format->direct.alphaMask) |
|
|
422 | return; |
|
|
423 | |
|
|
424 | Display *dpy = s->display->dpy; |
|
|
425 | |
|
|
426 | rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat); |
|
|
427 | img->alloc (); |
|
|
428 | |
|
|
429 | Picture src = picture (); |
|
|
430 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
431 | |
|
|
432 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
433 | |
|
|
434 | XRenderFreePicture (dpy, src); |
|
|
435 | XRenderFreePicture (dpy, dst); |
|
|
436 | |
|
|
437 | ::swap (img->ref, ref); |
|
|
438 | ::swap (img->pm , pm ); |
|
|
439 | |
|
|
440 | delete img; |
|
|
441 | } |
|
|
442 | |
|
|
443 | static void |
|
|
444 | get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params) |
|
|
445 | { |
|
|
446 | nv sigma = radius / 2.0; |
|
|
447 | nv scale = sqrt (2.0 * M_PI) * sigma; |
|
|
448 | nv sum = 0.0; |
|
|
449 | |
|
|
450 | for (int i = 0; i < width; i++) |
|
|
451 | { |
|
|
452 | nv x = i - width / 2; |
|
|
453 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
|
|
454 | sum += kernel[i]; |
|
|
455 | } |
|
|
456 | |
|
|
457 | params[0] = XDoubleToFixed (width); |
|
|
458 | params[1] = XDoubleToFixed (1); |
|
|
459 | |
|
|
460 | for (int i = 0; i < width; i++) |
|
|
461 | params[i+2] = XDoubleToFixed (kernel[i] / sum); |
|
|
462 | } |
|
|
463 | |
|
|
464 | rxvt_img * |
58 | rxvt_img::blur (int rh, int rv) |
465 | rxvt_img::blur (int rh, int rv) |
59 | { |
466 | { |
60 | //TODO |
467 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
|
|
468 | return clone (); |
|
|
469 | |
|
|
470 | Display *dpy = s->display->dpy; |
|
|
471 | int size = max (rh, rv) * 2 + 1; |
|
|
472 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
|
|
473 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
|
|
474 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
475 | img->alloc (); |
|
|
476 | |
|
|
477 | XRenderPictureAttributes pa; |
|
|
478 | pa.repeat = RepeatPad; |
|
|
479 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
|
|
480 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
481 | |
|
|
482 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
|
|
483 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
|
|
484 | XFreePixmap (dpy, tmp_pm); |
|
|
485 | |
|
|
486 | if (kernel && params) |
|
|
487 | { |
|
|
488 | size = rh * 2 + 1; |
|
|
489 | get_gaussian_kernel (rh, size, kernel, params); |
|
|
490 | |
|
|
491 | XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
|
|
492 | XRenderComposite (dpy, |
|
|
493 | PictOpSrc, |
|
|
494 | src, |
|
|
495 | None, |
|
|
496 | tmp, |
|
|
497 | 0, 0, |
|
|
498 | 0, 0, |
|
|
499 | 0, 0, |
|
|
500 | w, h); |
|
|
501 | |
|
|
502 | size = rv * 2 + 1; |
|
|
503 | get_gaussian_kernel (rv, size, kernel, params); |
|
|
504 | ::swap (params[0], params[1]); |
|
|
505 | |
|
|
506 | XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2); |
|
|
507 | XRenderComposite (dpy, |
|
|
508 | PictOpSrc, |
|
|
509 | tmp, |
|
|
510 | None, |
|
|
511 | dst, |
|
|
512 | 0, 0, |
|
|
513 | 0, 0, |
|
|
514 | 0, 0, |
|
|
515 | w, h); |
|
|
516 | } |
|
|
517 | |
|
|
518 | free (kernel); |
|
|
519 | free (params); |
|
|
520 | |
|
|
521 | XRenderFreePicture (dpy, src); |
|
|
522 | XRenderFreePicture (dpy, dst); |
|
|
523 | XRenderFreePicture (dpy, tmp); |
|
|
524 | |
|
|
525 | return img; |
|
|
526 | } |
|
|
527 | |
|
|
528 | static Picture |
|
|
529 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
|
|
530 | { |
|
|
531 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
|
|
532 | |
|
|
533 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
|
|
534 | XRenderPictureAttributes pa; |
|
|
535 | pa.repeat = RepeatNormal; |
|
|
536 | pa.component_alpha = component_alpha; |
|
|
537 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
|
|
538 | |
|
|
539 | XFreePixmap (dpy, pixmap); |
|
|
540 | |
|
|
541 | return mask; |
|
|
542 | } |
|
|
543 | |
|
|
544 | static void |
|
|
545 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
|
|
546 | { |
|
|
547 | int32_t x = clamp (c, cl0, cl1); |
|
|
548 | c -= x; |
|
|
549 | xc = x; |
|
|
550 | } |
|
|
551 | |
|
|
552 | static bool |
|
|
553 | 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) |
|
|
554 | { |
|
|
555 | extract (cl0, cl1, r, xr); |
|
|
556 | extract (cl0, cl1, g, xg); |
|
|
557 | extract (cl0, cl1, b, xb); |
|
|
558 | extract (cl0, cl1, a, xa); |
|
|
559 | |
|
|
560 | return xr | xg | xb | xa; |
61 | } |
561 | } |
62 | |
562 | |
63 | void |
563 | void |
64 | rxvt_img::brightness (double r, double g, double b, double a) |
564 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
65 | { |
565 | { |
66 | //TODO |
566 | unshare (); |
|
|
567 | |
|
|
568 | Display *dpy = s->display->dpy; |
|
|
569 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
|
|
570 | |
|
|
571 | // loop should not be needed for brightness, as only -1..1 makes sense |
|
|
572 | //while (r | g | b | a) |
|
|
573 | { |
|
|
574 | unsigned short xr, xg, xb, xa; |
|
|
575 | XRenderColor mask_c; |
|
|
576 | |
|
|
577 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
578 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
|
|
579 | |
|
|
580 | if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
581 | { |
|
|
582 | XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
|
|
583 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
584 | mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing |
|
|
585 | mask_c.green = -mask_c.green; |
|
|
586 | mask_c.blue = -mask_c.blue; |
|
|
587 | mask_c.alpha = -mask_c.alpha; |
|
|
588 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
|
|
589 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
590 | } |
|
|
591 | } |
|
|
592 | |
|
|
593 | XRenderFreePicture (dpy, dst); |
67 | } |
594 | } |
68 | |
595 | |
69 | void |
596 | void |
70 | rxvt_img::contrast (double r, double g, double b, double a) |
597 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
71 | { |
598 | { |
72 | //TODO |
599 | if (r < 0 || g < 0 || b < 0 || a < 0) |
|
|
600 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
|
|
601 | |
|
|
602 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
603 | img->alloc (); |
|
|
604 | img->fill (rgba (0, 0, 0, 0)); |
|
|
605 | |
|
|
606 | // premultiply (yeah, these are not exact, sue me or fix it) |
|
|
607 | r = (r * (a >> 8)) >> 8; |
|
|
608 | g = (g * (a >> 8)) >> 8; |
|
|
609 | b = (b * (a >> 8)) >> 8; |
|
|
610 | |
|
|
611 | Display *dpy = s->display->dpy; |
|
|
612 | |
|
|
613 | Picture src = picture (); |
|
|
614 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
615 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
|
|
616 | |
|
|
617 | //TODO: this operator does not yet implement some useful contrast |
|
|
618 | while (r | g | b | a) |
|
|
619 | { |
|
|
620 | unsigned short xr, xg, xb, xa; |
|
|
621 | XRenderColor mask_c; |
|
|
622 | |
|
|
623 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
624 | { |
|
|
625 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
|
|
626 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
627 | } |
|
|
628 | } |
|
|
629 | |
|
|
630 | XRenderFreePicture (dpy, mul); |
|
|
631 | XRenderFreePicture (dpy, dst); |
|
|
632 | XRenderFreePicture (dpy, src); |
|
|
633 | |
|
|
634 | ::swap (img->ref, ref); |
|
|
635 | ::swap (img->pm , pm ); |
|
|
636 | |
|
|
637 | delete img; |
73 | } |
638 | } |
74 | |
639 | |
75 | void |
640 | void |
76 | rxvt_img::render (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) |
641 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
77 | { |
642 | { |
78 | //TODO |
643 | unshare (); |
79 | } |
|
|
80 | |
644 | |
|
|
645 | Display *dpy = s->display->dpy; |
|
|
646 | Picture src = img->picture (); |
|
|
647 | Picture dst = picture (); |
|
|
648 | Picture mask_p = 0; |
|
|
649 | |
|
|
650 | if (mask != 1.) |
|
|
651 | { |
|
|
652 | mask_p = create_xrender_mask (dpy, img->pm, False, False); |
|
|
653 | XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) }; |
|
|
654 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
655 | } |
|
|
656 | |
|
|
657 | XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
|
|
658 | |
|
|
659 | XRenderFreePicture (dpy, src); |
|
|
660 | XRenderFreePicture (dpy, dst); |
|
|
661 | |
|
|
662 | if (mask_p) |
|
|
663 | XRenderFreePicture (dpy, mask_p); |
|
|
664 | } |
|
|
665 | |
81 | rxvt_img * |
666 | rxvt_img * |
82 | rxvt_img::copy () |
667 | rxvt_img::clone () |
83 | { |
668 | { |
84 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
669 | return new rxvt_img (*this); |
85 | Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth); |
|
|
86 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0); |
|
|
87 | XFreeGC (s->display->dpy, gc); |
|
|
88 | return new rxvt_img (s, format, w, h, pm2); |
|
|
89 | } |
670 | } |
90 | |
671 | |
91 | rxvt_img * |
672 | rxvt_img * |
92 | rxvt_img::transform (int new_width, int new_height, double matrix[16]) |
673 | rxvt_img::reify () |
93 | { |
674 | { |
94 | //TODO |
675 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
|
|
676 | return clone (); |
|
|
677 | |
|
|
678 | Display *dpy = s->display->dpy; |
|
|
679 | |
|
|
680 | // add an alpha channel if... |
|
|
681 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
|
|
682 | && (x || y) // we need one because of non-zero offset |
|
|
683 | && repeat == RepeatNone; // and we have no good pixels to fill with |
|
|
684 | |
|
|
685 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
|
|
686 | img->alloc (); |
|
|
687 | |
|
|
688 | Picture src = picture (); |
|
|
689 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
690 | |
|
|
691 | if (alpha) |
|
|
692 | { |
|
|
693 | XRenderColor rc = { 0, 0, 0, 0 }; |
|
|
694 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
|
|
695 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
|
|
696 | } |
|
|
697 | else |
|
|
698 | XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h); |
|
|
699 | |
|
|
700 | XRenderFreePicture (dpy, src); |
|
|
701 | XRenderFreePicture (dpy, dst); |
|
|
702 | |
|
|
703 | return img; |
|
|
704 | } |
|
|
705 | |
|
|
706 | rxvt_img * |
|
|
707 | rxvt_img::sub_rect (int x, int y, int width, int height) |
|
|
708 | { |
|
|
709 | rxvt_img *img = clone (); |
|
|
710 | |
|
|
711 | img->x -= x; |
|
|
712 | img->y -= y; |
|
|
713 | |
|
|
714 | if (w != width || h != height) |
|
|
715 | { |
|
|
716 | img->w = width; |
|
|
717 | img->h = height; |
|
|
718 | |
|
|
719 | rxvt_img *img2 = img->reify (); |
|
|
720 | delete img; |
|
|
721 | img = img2; |
|
|
722 | } |
|
|
723 | |
|
|
724 | return img; |
|
|
725 | } |
|
|
726 | |
|
|
727 | rxvt_img * |
|
|
728 | rxvt_img::transform (const nv matrix[3][3]) |
|
|
729 | { |
|
|
730 | return transform (mat3x3 (&matrix[0][0])); |
|
|
731 | } |
|
|
732 | |
|
|
733 | rxvt_img * |
|
|
734 | rxvt_img::transform (const nv *matrix) |
|
|
735 | { |
|
|
736 | mat3x3 m (matrix); |
|
|
737 | |
|
|
738 | // calculate new pixel bounding box coordinates |
|
|
739 | nv r[2], rmin[2], rmax[2]; |
|
|
740 | |
|
|
741 | for (int i = 0; i < 2; ++i) |
|
|
742 | { |
|
|
743 | nv v; |
|
|
744 | |
|
|
745 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v; |
|
|
746 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
747 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
748 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
|
|
749 | } |
|
|
750 | |
|
|
751 | float sx = rmin [0] - x; |
|
|
752 | float sy = rmin [1] - y; |
|
|
753 | |
|
|
754 | // TODO: adjust matrix for subpixel accuracy |
|
|
755 | int nx = floor (rmin [0]); |
|
|
756 | int ny = floor (rmin [1]); |
|
|
757 | |
|
|
758 | int new_width = ceil (rmax [0] - rmin [0]); |
|
|
759 | int new_height = ceil (rmax [1] - rmin [1]); |
|
|
760 | |
|
|
761 | m = mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y); |
|
|
762 | |
|
|
763 | mat3x3 inv = m.invert (); |
|
|
764 | |
|
|
765 | rxvt_img *img = new rxvt_img (s, format, nx, ny, new_width, new_height, repeat); |
|
|
766 | img->alloc (); |
|
|
767 | |
|
|
768 | Display *dpy = s->display->dpy; |
|
|
769 | Picture src = picture (); |
|
|
770 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
771 | |
|
|
772 | XTransform xfrm; |
|
|
773 | |
|
|
774 | for (int i = 0; i < 3; ++i) |
|
|
775 | for (int j = 0; j < 3; ++j) |
|
|
776 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
|
|
777 | |
|
|
778 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
|
|
779 | XRenderSetPictureTransform (dpy, src, &xfrm); |
|
|
780 | XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
|
|
781 | |
|
|
782 | XRenderFreePicture (dpy, src); |
|
|
783 | XRenderFreePicture (dpy, dst); |
|
|
784 | |
|
|
785 | return img; |
95 | } |
786 | } |
96 | |
787 | |
97 | rxvt_img * |
788 | rxvt_img * |
98 | rxvt_img::scale (int new_width, int new_height) |
789 | rxvt_img::scale (int new_width, int new_height) |
99 | { |
790 | { |
100 | // use transform |
791 | if (w == new_width && h == new_height) |
101 | //TODO |
792 | return clone (); |
102 | } |
|
|
103 | |
793 | |
|
|
794 | int old_repeat_mode = repeat; |
|
|
795 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
104 | |
796 | |
|
|
797 | rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h)); |
|
|
798 | |
|
|
799 | repeat = old_repeat_mode; |
|
|
800 | img->repeat = repeat; |
|
|
801 | |
|
|
802 | return img; |
|
|
803 | } |
|
|
804 | |
|
|
805 | rxvt_img * |
|
|
806 | rxvt_img::rotate (int cx, int cy, nv phi) |
|
|
807 | { |
|
|
808 | #if 0 |
|
|
809 | { c, -s, cx - c * cx + s * cy }, |
|
|
810 | { s, c, cy - s * cx - c * cy }, |
|
|
811 | { 0, 0, 1 } |
105 | #endif |
812 | #endif |
106 | |
813 | |
|
|
814 | move (-cx, -cy); |
|
|
815 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
|
|
816 | move ( cx, cy); |
|
|
817 | img->move (cx, cy); |
|
|
818 | |
|
|
819 | return img; |
|
|
820 | } |
|
|
821 | |
|
|
822 | rxvt_img * |
|
|
823 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
|
|
824 | { |
|
|
825 | if (new_format == format) |
|
|
826 | return clone (); |
|
|
827 | |
|
|
828 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
|
|
829 | img->alloc (); |
|
|
830 | |
|
|
831 | Display *dpy = s->display->dpy; |
|
|
832 | Picture src = picture (); |
|
|
833 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
834 | int op = PictOpSrc; |
|
|
835 | |
|
|
836 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
|
|
837 | { |
|
|
838 | // does it have to be that complicated |
|
|
839 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
|
|
840 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
|
|
841 | |
|
|
842 | op = PictOpOver; |
|
|
843 | } |
|
|
844 | |
|
|
845 | XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
846 | |
|
|
847 | XRenderFreePicture (dpy, src); |
|
|
848 | XRenderFreePicture (dpy, dst); |
|
|
849 | |
|
|
850 | return img; |
|
|
851 | } |
|
|
852 | |
|
|
853 | rxvt_img * |
|
|
854 | rxvt_img::blend (rxvt_img *img, nv factor) |
|
|
855 | { |
|
|
856 | rxvt_img *img2 = clone (); |
|
|
857 | Display *dpy = s->display->dpy; |
|
|
858 | Picture src = img->picture (); |
|
|
859 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
860 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
|
|
861 | |
|
|
862 | XRenderColor mask_c; |
|
|
863 | |
|
|
864 | mask_c.alpha = float_to_component (factor); |
|
|
865 | mask_c.red = |
|
|
866 | mask_c.green = |
|
|
867 | mask_c.blue = 0; |
|
|
868 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
869 | |
|
|
870 | XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
871 | |
|
|
872 | XRenderFreePicture (dpy, src); |
|
|
873 | XRenderFreePicture (dpy, dst); |
|
|
874 | XRenderFreePicture (dpy, mask); |
|
|
875 | |
|
|
876 | return img2; |
|
|
877 | } |
|
|
878 | |
|
|
879 | #endif |
|
|
880 | |