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Rev | Author | Line No. | Line |
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4680 | right-hear | 1 | /* |
2 | * Blit RGBA images to X with X(Shm)Images |
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3 | */ |
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4 | |||
5 | #ifndef _XOPEN_SOURCE |
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6 | # define _XOPEN_SOURCE 1 |
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7 | #endif |
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8 | |||
9 | #ifndef _XOPEN_SOURCE |
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10 | # define _XOPEN_SOURCE 1 |
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11 | #endif |
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12 | |||
13 | #define noSHOWINFO |
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14 | |||
15 | #include "fitz.h" |
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16 | |||
17 | #include |
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18 | #include |
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19 | #include |
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20 | #include |
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21 | #include |
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22 | |||
23 | extern int ffs(int); |
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24 | |||
25 | typedef void (*ximage_convert_func_t) |
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26 | ( |
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27 | const unsigned char *src, |
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28 | int srcstride, |
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29 | unsigned char *dst, |
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30 | int dststride, |
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31 | int w, |
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32 | int h |
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33 | ); |
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34 | |||
35 | #define POOLSIZE 4 |
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36 | #define WIDTH 256 |
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37 | #define HEIGHT 256 |
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38 | |||
39 | enum { |
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40 | ARGB8888, |
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41 | BGRA8888, |
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42 | RGBA8888, |
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43 | ABGR8888, |
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44 | RGB888, |
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45 | BGR888, |
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46 | RGB565, |
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47 | RGB565_BR, |
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48 | RGB555, |
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49 | RGB555_BR, |
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50 | BGR233, |
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51 | UNKNOWN |
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52 | }; |
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53 | |||
54 | #ifdef SHOWINFO |
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55 | static char *modename[] = { |
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56 | "ARGB8888", |
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57 | "BGRA8888", |
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58 | "RGBA8888", |
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59 | "ABGR8888", |
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60 | "RGB888", |
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61 | "BGR888", |
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62 | "RGB565", |
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63 | "RGB565_BR", |
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64 | "RGB555", |
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65 | "RGB555_BR", |
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66 | "BGR233", |
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67 | "UNKNOWN" |
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68 | }; |
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69 | #endif |
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70 | |||
71 | extern ximage_convert_func_t ximage_convert_funcs[]; |
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72 | |||
73 | static struct |
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74 | { |
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75 | Display *display; |
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76 | int screen; |
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77 | XVisualInfo visual; |
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78 | Colormap colormap; |
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79 | |||
80 | int bitsperpixel; |
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81 | int mode; |
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82 | |||
83 | XColor rgbcube[256]; |
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84 | |||
85 | ximage_convert_func_t convert_func; |
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86 | |||
87 | int useshm; |
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88 | int shmcode; |
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89 | XImage *pool[POOLSIZE]; |
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90 | /* MUST exist during the lifetime of the shared ximage according to the |
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91 | xc/doc/hardcopy/Xext/mit-shm.PS.gz */ |
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92 | XShmSegmentInfo shminfo[POOLSIZE]; |
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93 | int lastused; |
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94 | } info; |
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95 | |||
96 | static XImage * |
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97 | createximage(Display *dpy, Visual *vis, XShmSegmentInfo *xsi, int depth, int w, int h) |
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98 | { |
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99 | XImage *img; |
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100 | Status status; |
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101 | |||
102 | if (!XShmQueryExtension(dpy)) |
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103 | goto fallback; |
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104 | if (!info.useshm) |
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105 | goto fallback; |
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106 | |||
107 | img = XShmCreateImage(dpy, vis, depth, ZPixmap, NULL, xsi, w, h); |
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108 | if (!img) |
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109 | { |
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110 | fprintf(stderr, "warn: could not XShmCreateImage\n"); |
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111 | goto fallback; |
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112 | } |
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113 | |||
114 | xsi->shmid = shmget(IPC_PRIVATE, |
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115 | img->bytes_per_line * img->height, |
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116 | IPC_CREAT | 0777); |
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117 | if (xsi->shmid < 0) |
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118 | { |
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119 | XDestroyImage(img); |
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120 | fprintf(stderr, "warn: could not shmget\n"); |
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121 | goto fallback; |
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122 | } |
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123 | |||
124 | img->data = xsi->shmaddr = shmat(xsi->shmid, NULL, 0); |
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125 | if (img->data == (char*)-1) |
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126 | { |
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127 | XDestroyImage(img); |
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128 | fprintf(stderr, "warn: could not shmat\n"); |
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129 | goto fallback; |
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130 | } |
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131 | |||
132 | xsi->readOnly = False; |
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133 | status = XShmAttach(dpy, xsi); |
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134 | if (!status) |
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135 | { |
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136 | shmdt(xsi->shmaddr); |
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137 | XDestroyImage(img); |
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138 | fprintf(stderr, "warn: could not XShmAttach\n"); |
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139 | goto fallback; |
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140 | } |
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141 | |||
142 | XSync(dpy, False); |
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143 | |||
144 | shmctl(xsi->shmid, IPC_RMID, NULL); |
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145 | |||
146 | return img; |
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147 | |||
148 | fallback: |
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149 | info.useshm = 0; |
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150 | |||
151 | img = XCreateImage(dpy, vis, depth, ZPixmap, 0, NULL, w, h, 32, 0); |
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152 | if (!img) |
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153 | { |
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154 | fprintf(stderr, "fail: could not XCreateImage"); |
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155 | abort(); |
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156 | } |
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157 | |||
158 | img->data = malloc(h * img->bytes_per_line); |
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159 | if (!img->data) |
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160 | { |
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161 | fprintf(stderr, "fail: could not malloc"); |
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162 | abort(); |
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163 | } |
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164 | |||
165 | return img; |
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166 | } |
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167 | |||
168 | static void |
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169 | make_colormap(void) |
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170 | { |
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171 | if (info.visual.class == PseudoColor && info.visual.depth == 8) |
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172 | { |
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173 | int i, r, g, b; |
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174 | i = 0; |
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175 | for (b = 0; b < 4; b++) { |
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176 | for (g = 0; g < 8; g++) { |
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177 | for (r = 0; r < 8; r++) { |
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178 | info.rgbcube[i].pixel = i; |
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179 | info.rgbcube[i].red = (r * 36) << 8; |
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180 | info.rgbcube[i].green = (g * 36) << 8; |
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181 | info.rgbcube[i].blue = (b * 85) << 8; |
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182 | info.rgbcube[i].flags = |
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183 | DoRed | DoGreen | DoBlue; |
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184 | i++; |
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185 | } |
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186 | } |
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187 | } |
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188 | info.colormap = XCreateColormap(info.display, |
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189 | RootWindow(info.display, info.screen), |
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190 | info.visual.visual, |
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191 | AllocAll); |
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192 | XStoreColors(info.display, info.colormap, info.rgbcube, 256); |
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193 | return; |
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194 | } |
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195 | else if (info.visual.class == TrueColor) |
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196 | { |
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197 | info.colormap = 0; |
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198 | return; |
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199 | } |
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200 | fprintf(stderr, "Cannot handle visual class %d with depth: %d\n", |
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201 | info.visual.class, info.visual.depth); |
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202 | return; |
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203 | } |
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204 | |||
205 | static void |
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206 | select_mode(void) |
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207 | { |
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208 | |||
209 | int byteorder; |
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210 | int byterev; |
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211 | unsigned long rm, gm, bm; |
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212 | unsigned long rs, gs, bs; |
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213 | |||
214 | byteorder = ImageByteOrder(info.display); |
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215 | if (fz_is_big_endian()) |
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216 | byterev = byteorder != MSBFirst; |
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217 | else |
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218 | byterev = byteorder != LSBFirst; |
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219 | |||
220 | rm = info.visual.red_mask; |
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221 | gm = info.visual.green_mask; |
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222 | bm = info.visual.blue_mask; |
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223 | |||
224 | rs = ffs(rm) - 1; |
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225 | gs = ffs(gm) - 1; |
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226 | bs = ffs(bm) - 1; |
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227 | |||
228 | #ifdef SHOWINFO |
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229 | printf("ximage: mode %d/%d %08lx %08lx %08lx (%ld,%ld,%ld) %s%s\n", |
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230 | info.visual.depth, |
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231 | info.bitsperpixel, |
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232 | rm, gm, bm, rs, gs, bs, |
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233 | byteorder == MSBFirst ? "msb" : "lsb", |
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234 | byterev ? " |
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235 | #endif |
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236 | |||
237 | info.mode = UNKNOWN; |
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238 | if (info.bitsperpixel == 8) { |
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239 | /* Either PseudoColor with BGR233 colormap, or TrueColor */ |
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240 | info.mode = BGR233; |
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241 | } |
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242 | else if (info.bitsperpixel == 16) { |
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243 | if (rm == 0xF800 && gm == 0x07E0 && bm == 0x001F) |
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244 | info.mode = !byterev ? RGB565 : RGB565_BR; |
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245 | if (rm == 0x7C00 && gm == 0x03E0 && bm == 0x001F) |
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246 | info.mode = !byterev ? RGB555 : RGB555_BR; |
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247 | } |
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248 | else if (info.bitsperpixel == 24) { |
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249 | if (rs == 0 && gs == 8 && bs == 16) |
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250 | info.mode = byteorder == MSBFirst ? RGB888 : BGR888; |
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251 | if (rs == 16 && gs == 8 && bs == 0) |
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252 | info.mode = byteorder == MSBFirst ? BGR888 : RGB888; |
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253 | } |
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254 | else if (info.bitsperpixel == 32) { |
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255 | if (rs == 0 && gs == 8 && bs == 16) |
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256 | info.mode = byteorder == MSBFirst ? ABGR8888 : RGBA8888; |
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257 | if (rs == 8 && gs == 16 && bs == 24) |
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258 | info.mode = byteorder == MSBFirst ? BGRA8888 : ARGB8888; |
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259 | if (rs == 16 && gs == 8 && bs == 0) |
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260 | info.mode = byteorder == MSBFirst ? ARGB8888 : BGRA8888; |
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261 | if (rs == 24 && gs == 16 && bs == 8) |
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262 | info.mode = byteorder == MSBFirst ? RGBA8888 : ABGR8888; |
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263 | } |
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264 | |||
265 | #ifdef SHOWINFO |
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266 | printf("ximage: RGBA8888 to %s\n", modename[info.mode]); |
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267 | #endif |
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268 | |||
269 | /* select conversion function */ |
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270 | info.convert_func = ximage_convert_funcs[info.mode]; |
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271 | } |
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272 | |||
273 | static int |
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274 | create_pool(void) |
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275 | { |
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276 | int i; |
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277 | |||
278 | info.lastused = 0; |
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279 | |||
280 | for (i = 0; i < POOLSIZE; i++) { |
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281 | info.pool[i] = NULL; |
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282 | } |
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283 | |||
284 | for (i = 0; i < POOLSIZE; i++) { |
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285 | info.pool[i] = createximage(info.display, |
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286 | info.visual.visual, &info.shminfo[i], info.visual.depth, |
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287 | WIDTH, HEIGHT); |
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288 | if (info.pool[i] == NULL) { |
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289 | return 0; |
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290 | } |
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291 | } |
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292 | |||
293 | return 1; |
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294 | } |
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295 | |||
296 | static XImage * |
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297 | next_pool_image(void) |
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298 | { |
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299 | if (info.lastused + 1 >= POOLSIZE) { |
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300 | if (info.useshm) |
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301 | XSync(info.display, False); |
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302 | else |
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303 | XFlush(info.display); |
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304 | info.lastused = 0; |
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305 | } |
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306 | return info.pool[info.lastused ++]; |
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307 | } |
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308 | |||
309 | static int |
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310 | ximage_error_handler(Display *display, XErrorEvent *event) |
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311 | { |
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312 | /* Turn off shared memory images if we get an error from the MIT-SHM extension */ |
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313 | if (event->request_code == info.shmcode) |
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314 | { |
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315 | char buf[80]; |
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316 | XGetErrorText(display, event->error_code, buf, sizeof buf); |
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317 | fprintf(stderr, "ximage: disabling shared memory extension: %s\n", buf); |
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318 | info.useshm = 0; |
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319 | return 0; |
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320 | } |
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321 | |||
322 | XSetErrorHandler(NULL); |
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323 | return (XSetErrorHandler(ximage_error_handler))(display, event); |
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324 | } |
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325 | |||
326 | int |
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327 | ximage_init(Display *display, int screen, Visual *visual) |
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328 | { |
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329 | XVisualInfo template; |
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330 | XVisualInfo *visuals; |
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331 | int nvisuals; |
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332 | XPixmapFormatValues *formats; |
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333 | int nformats; |
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334 | int ok; |
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335 | int i; |
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336 | int major; |
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337 | int event; |
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338 | int error; |
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339 | |||
340 | info.display = display; |
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341 | info.screen = screen; |
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342 | info.colormap = 0; |
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343 | |||
344 | /* Get XVisualInfo for this visual */ |
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345 | template.visualid = XVisualIDFromVisual(visual); |
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346 | visuals = XGetVisualInfo(display, VisualIDMask, &template, &nvisuals); |
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347 | if (nvisuals != 1) { |
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348 | fprintf(stderr, "Visual not found!\n"); |
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349 | XFree(visuals); |
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350 | return 0; |
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351 | } |
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352 | memcpy(&info.visual, visuals, sizeof (XVisualInfo)); |
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353 | XFree(visuals); |
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354 | |||
355 | /* Get appropriate PixmapFormat for this visual */ |
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356 | formats = XListPixmapFormats(info.display, &nformats); |
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357 | for (i = 0; i < nformats; i++) { |
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358 | if (formats[i].depth == info.visual.depth) { |
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359 | info.bitsperpixel = formats[i].bits_per_pixel; |
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360 | break; |
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361 | } |
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362 | } |
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363 | XFree(formats); |
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364 | if (i == nformats) { |
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365 | fprintf(stderr, "PixmapFormat not found!\n"); |
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366 | return 0; |
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367 | } |
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368 | |||
369 | /* extract mode */ |
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370 | select_mode(); |
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371 | |||
372 | /* prepare colormap */ |
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373 | make_colormap(); |
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374 | |||
375 | /* identify code for MIT-SHM extension */ |
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376 | if (XQueryExtension(display, "MIT-SHM", &major, &event, &error) && |
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377 | XShmQueryExtension(display)) |
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378 | info.shmcode = major; |
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379 | |||
380 | /* intercept errors looking for SHM code */ |
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381 | XSetErrorHandler(ximage_error_handler); |
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382 | |||
383 | /* prepare pool of XImages */ |
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384 | info.useshm = 1; |
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385 | ok = create_pool(); |
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386 | if (!ok) |
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387 | return 0; |
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388 | |||
389 | #ifdef SHOWINFO |
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390 | printf("ximage: %sPutImage\n", info.useshm ? "XShm" : "X"); |
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391 | #endif |
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392 | |||
393 | return 1; |
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394 | } |
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395 | |||
396 | int |
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397 | ximage_get_depth(void) |
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398 | { |
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399 | return info.visual.depth; |
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400 | } |
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401 | |||
402 | Visual * |
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403 | ximage_get_visual(void) |
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404 | { |
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405 | return info.visual.visual; |
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406 | } |
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407 | |||
408 | Colormap |
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409 | ximage_get_colormap(void) |
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410 | { |
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411 | return info.colormap; |
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412 | } |
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413 | |||
414 | void |
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415 | ximage_blit(Drawable d, GC gc, |
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416 | int dstx, int dsty, |
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417 | unsigned char *srcdata, |
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418 | int srcx, int srcy, |
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419 | int srcw, int srch, |
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420 | int srcstride) |
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421 | { |
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422 | XImage *image; |
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423 | int ax, ay; |
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424 | int w, h; |
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425 | unsigned char *srcptr; |
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426 | |||
427 | for (ay = 0; ay < srch; ay += HEIGHT) |
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428 | { |
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429 | h = MIN(srch - ay, HEIGHT); |
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430 | for (ax = 0; ax < srcw; ax += WIDTH) |
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431 | { |
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432 | w = MIN(srcw - ax, WIDTH); |
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433 | |||
434 | image = next_pool_image(); |
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435 | |||
436 | srcptr = srcdata + |
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437 | (ay + srcy) * srcstride + |
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438 | (ax + srcx) * 4; |
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439 | |||
440 | info.convert_func(srcptr, srcstride, |
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441 | (unsigned char *) image->data, |
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442 | image->bytes_per_line, w, h); |
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443 | |||
444 | if (info.useshm) |
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445 | { |
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446 | XShmPutImage(info.display, d, gc, image, |
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447 | 0, 0, dstx + ax, dsty + ay, |
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448 | w, h, False); |
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449 | } |
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450 | else |
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451 | { |
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452 | XPutImage(info.display, d, gc, image, |
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453 | 0, 0, |
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454 | dstx + ax, |
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455 | dsty + ay, |
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456 | w, h); |
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457 | } |
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458 | } |
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459 | } |
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460 | } |
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461 | |||
462 | /* |
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463 | * Primitive conversion functions |
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464 | */ |
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465 | |||
466 | #ifndef restrict |
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467 | #ifndef _C99 |
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468 | #ifdef __GNUC__ |
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469 | #define restrict __restrict__ |
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470 | #else |
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471 | #define restrict |
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472 | #endif |
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473 | #endif |
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474 | #endif |
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475 | |||
476 | #define PARAMS \ |
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477 | const unsigned char * restrict src, \ |
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478 | int srcstride, \ |
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479 | unsigned char * restrict dst, \ |
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480 | int dststride, \ |
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481 | int w, \ |
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482 | int h |
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483 | |||
484 | /* |
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485 | * Convert byte:RGBA8888 to various formats |
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486 | */ |
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487 | |||
488 | static void |
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489 | ximage_convert_argb8888(PARAMS) |
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490 | { |
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491 | int x, y; |
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492 | for (y = 0; y < h; y++) { |
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493 | for (x = 0; x < w; x ++) { |
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494 | dst[x * 4 + 0] = src[x * 4 + 3]; /* a */ |
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495 | dst[x * 4 + 1] = src[x * 4 + 0]; /* r */ |
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496 | dst[x * 4 + 2] = src[x * 4 + 1]; /* g */ |
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497 | dst[x * 4 + 3] = src[x * 4 + 2]; /* b */ |
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498 | } |
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499 | dst += dststride; |
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500 | src += srcstride; |
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501 | } |
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502 | } |
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503 | |||
504 | static void |
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505 | ximage_convert_bgra8888(PARAMS) |
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506 | { |
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507 | int x, y; |
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508 | for (y = 0; y < h; y++) { |
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509 | for (x = 0; x < w; x++) { |
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510 | dst[x * 4 + 0] = src[x * 4 + 2]; |
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511 | dst[x * 4 + 1] = src[x * 4 + 1]; |
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512 | dst[x * 4 + 2] = src[x * 4 + 0]; |
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513 | dst[x * 4 + 3] = src[x * 4 + 3]; |
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514 | } |
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515 | dst += dststride; |
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516 | src += srcstride; |
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517 | } |
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518 | } |
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519 | |||
520 | static void |
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521 | ximage_convert_abgr8888(PARAMS) |
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522 | { |
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523 | int x, y; |
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524 | for (y = 0; y < h; y++) { |
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525 | for (x = 0; x < w; x++) { |
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526 | dst[x * 4 + 0] = src[x * 4 + 3]; |
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527 | dst[x * 4 + 1] = src[x * 4 + 2]; |
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528 | dst[x * 4 + 2] = src[x * 4 + 1]; |
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529 | dst[x * 4 + 3] = src[x * 4 + 0]; |
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530 | } |
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531 | dst += dststride; |
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532 | src += srcstride; |
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533 | } |
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534 | } |
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535 | |||
536 | static void |
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537 | ximage_convert_rgba8888(PARAMS) |
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538 | { |
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539 | int x, y; |
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540 | for (y = 0; y < h; y++) { |
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541 | for (x = 0; x < w; x++) { |
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542 | dst[x] = src[x]; |
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543 | } |
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544 | dst += dststride; |
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545 | src += srcstride; |
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546 | } |
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547 | } |
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548 | |||
549 | static void |
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550 | ximage_convert_bgr888(PARAMS) |
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551 | { |
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552 | int x, y; |
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553 | for (y = 0; y < h; y++) { |
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554 | for (x = 0; x < w; x++) { |
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555 | dst[3*x + 0] = src[4*x + 2]; |
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556 | dst[3*x + 1] = src[4*x + 1]; |
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557 | dst[3*x + 2] = src[4*x + 0]; |
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558 | } |
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559 | src += srcstride; |
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560 | dst += dststride; |
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561 | } |
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562 | } |
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563 | |||
564 | static void |
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565 | ximage_convert_rgb888(PARAMS) |
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566 | { |
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567 | int x, y; |
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568 | for (y = 0; y < h; y++) { |
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569 | for (x = 0; x < w; x++) { |
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570 | dst[3*x + 0] = src[4*x + 0]; |
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571 | dst[3*x + 1] = src[4*x + 1]; |
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572 | dst[3*x + 2] = src[4*x + 2]; |
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573 | } |
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574 | src += srcstride; |
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575 | dst += dststride; |
||
576 | } |
||
577 | } |
||
578 | |||
579 | static void |
||
580 | ximage_convert_rgb565(PARAMS) |
||
581 | { |
||
582 | unsigned char r, g, b; |
||
583 | int x, y; |
||
584 | for (y = 0; y < h; y++) { |
||
585 | for (x = 0; x < w; x++) { |
||
586 | r = src[4*x + 0]; |
||
587 | g = src[4*x + 1]; |
||
588 | b = src[4*x + 2]; |
||
589 | ((unsigned short *)dst)[x] = |
||
590 | ((r & 0xF8) << 8) | |
||
591 | ((g & 0xFC) << 3) | |
||
592 | (b >> 3); |
||
593 | } |
||
594 | src += srcstride; |
||
595 | dst += dststride; |
||
596 | } |
||
597 | } |
||
598 | |||
599 | static void |
||
600 | ximage_convert_rgb565_br(PARAMS) |
||
601 | { |
||
602 | unsigned char r, g, b; |
||
603 | int x, y; |
||
604 | for (y = 0; y < h; y++) { |
||
605 | for (x = 0; x < w; x++) { |
||
606 | r = src[4*x + 0]; |
||
607 | g = src[4*x + 1]; |
||
608 | b = src[4*x + 2]; |
||
609 | /* final word is: |
||
610 | g4 g3 g2 b7 b6 b5 b4 b3 : r7 r6 r5 r4 r3 g7 g6 g5 |
||
611 | */ |
||
612 | ((unsigned short *)dst)[x] = |
||
613 | (r & 0xF8) | |
||
614 | ((g & 0xE0) >> 5) | |
||
615 | ((g & 0x1C) << 11) | |
||
616 | ((b & 0xF8) << 5); |
||
617 | } |
||
618 | src += srcstride; |
||
619 | dst += dststride; |
||
620 | } |
||
621 | } |
||
622 | |||
623 | static void |
||
624 | ximage_convert_rgb555(PARAMS) |
||
625 | { |
||
626 | unsigned char r, g, b; |
||
627 | int x, y; |
||
628 | for (y = 0; y < h; y++) { |
||
629 | for (x = 0; x < w; x++) { |
||
630 | r = src[4*x + 0]; |
||
631 | g = src[4*x + 1]; |
||
632 | b = src[4*x + 2]; |
||
633 | ((unsigned short *)dst)[x] = |
||
634 | ((r & 0xF8) << 7) | |
||
635 | ((g & 0xF8) << 2) | |
||
636 | (b >> 3); |
||
637 | } |
||
638 | src += srcstride; |
||
639 | dst += dststride; |
||
640 | } |
||
641 | } |
||
642 | |||
643 | static void |
||
644 | ximage_convert_rgb555_br(PARAMS) |
||
645 | { |
||
646 | unsigned char r, g, b; |
||
647 | int x, y; |
||
648 | for (y = 0; y < h; y++) { |
||
649 | for (x = 0; x < w; x++) { |
||
650 | r = src[4*x + 0]; |
||
651 | g = src[4*x + 1]; |
||
652 | b = src[4*x + 2]; |
||
653 | /* final word is: |
||
654 | g5 g4 g3 b7 b6 b5 b4 b3 : 0 r7 r6 r5 r4 r3 g7 g6 |
||
655 | */ |
||
656 | ((unsigned short *)dst)[x] = |
||
657 | ((r & 0xF8) >> 1) | |
||
658 | ((g & 0xC0) >> 6) | |
||
659 | ((g & 0x38) << 10) | |
||
660 | ((b & 0xF8) << 5); |
||
661 | } |
||
662 | src += srcstride; |
||
663 | dst += dststride; |
||
664 | } |
||
665 | } |
||
666 | |||
667 | static void |
||
668 | ximage_convert_bgr233(PARAMS) |
||
669 | { |
||
670 | unsigned char r, g, b; |
||
671 | int x,y; |
||
672 | for(y = 0; y < h; y++) { |
||
673 | for(x = 0; x < w; x++) { |
||
674 | r = src[4*x + 0]; |
||
675 | g = src[4*x + 1]; |
||
676 | b = src[4*x + 2]; |
||
677 | /* format: b7 b6 g7 g6 g5 r7 r6 r5 */ |
||
678 | dst[x] = (b&0xC0) | ((g>>2)&0x38) | ((r>>5)&0x7); |
||
679 | } |
||
680 | src += srcstride; |
||
681 | dst += dststride; |
||
682 | } |
||
683 | } |
||
684 | |||
685 | ximage_convert_func_t ximage_convert_funcs[] = { |
||
686 | ximage_convert_argb8888, |
||
687 | ximage_convert_bgra8888, |
||
688 | ximage_convert_rgba8888, |
||
689 | ximage_convert_abgr8888, |
||
690 | ximage_convert_rgb888, |
||
691 | ximage_convert_bgr888, |
||
692 | ximage_convert_rgb565, |
||
693 | ximage_convert_rgb565_br, |
||
694 | ximage_convert_rgb555, |
||
695 | ximage_convert_rgb555_br, |
||
696 | ximage_convert_bgr233, |
||
697 | };>>><>><>>>><>><>>>><>><>>>><>><>>>>>>>>>>>>>>>>>>>>><>><>><>>>>> |