1 | /*
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2 | * Copyright (c) 2025 Jiri Svoboda
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3 | * Copyright (c) 2013 Martin Sucha
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4 | * All rights reserved.
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5 | *
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6 | * Redistribution and use in source and binary forms, with or without
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7 | * modification, are permitted provided that the following conditions
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8 | * are met:
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9 | *
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10 | * - Redistributions of source code must retain the above copyright
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11 | * notice, this list of conditions and the following disclaimer.
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12 | * - Redistributions in binary form must reproduce the above copyright
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13 | * notice, this list of conditions and the following disclaimer in the
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14 | * documentation and/or other materials provided with the distribution.
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15 | * - The name of the author may not be used to endorse or promote products
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16 | * derived from this software without specific prior written permission.
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17 | *
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18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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28 | */
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29 |
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30 | #include <ddev/info.h>
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31 | #include <ddev_srv.h>
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32 | #include <errno.h>
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33 | #include <fibril_synch.h>
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34 | #include <gfx/color.h>
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35 | #include <gfx/context.h>
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36 | #include <gfx/coord.h>
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37 | #include <inttypes.h>
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38 | #include <io/log.h>
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39 | #include <io/pixelmap.h>
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40 | #include <ipcgfx/server.h>
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41 | #include <loc.h>
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42 | #include <stdio.h>
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43 | #include <stdlib.h>
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44 | #include <task.h>
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45 |
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46 | #include "rfb.h"
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47 |
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48 | #define NAME "rfb"
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49 |
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50 | static errno_t rfb_ddev_get_gc(void *, sysarg_t *, sysarg_t *);
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51 | static errno_t rfb_ddev_get_info(void *, ddev_info_t *);
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52 |
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53 | static errno_t rfb_gc_set_clip_rect(void *, gfx_rect_t *);
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54 | static errno_t rfb_gc_set_color(void *, gfx_color_t *);
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55 | static errno_t rfb_gc_fill_rect(void *, gfx_rect_t *);
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56 | static errno_t rfb_gc_bitmap_create(void *, gfx_bitmap_params_t *,
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57 | gfx_bitmap_alloc_t *, void **);
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58 | static errno_t rfb_gc_bitmap_destroy(void *);
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59 | static errno_t rfb_gc_bitmap_render(void *, gfx_rect_t *, gfx_coord2_t *);
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60 | static errno_t rfb_gc_bitmap_get_alloc(void *, gfx_bitmap_alloc_t *);
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61 |
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62 | static ddev_ops_t rfb_ddev_ops = {
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63 | .get_gc = rfb_ddev_get_gc,
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64 | .get_info = rfb_ddev_get_info
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65 | };
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66 |
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67 | typedef struct {
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68 | rfb_t rfb;
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69 | pixel_t color;
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70 | gfx_rect_t rect;
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71 | gfx_rect_t clip_rect;
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72 | } rfb_gc_t;
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73 |
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74 | typedef struct {
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75 | rfb_gc_t *rfb;
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76 | gfx_bitmap_alloc_t alloc;
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77 | gfx_rect_t rect;
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78 | gfx_bitmap_flags_t flags;
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79 | pixel_t key_color;
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80 | bool myalloc;
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81 | } rfb_bitmap_t;
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82 |
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83 | static gfx_context_ops_t rfb_gc_ops = {
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84 | .set_clip_rect = rfb_gc_set_clip_rect,
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85 | .set_color = rfb_gc_set_color,
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86 | .fill_rect = rfb_gc_fill_rect,
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87 | .bitmap_create = rfb_gc_bitmap_create,
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88 | .bitmap_destroy = rfb_gc_bitmap_destroy,
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89 | .bitmap_render = rfb_gc_bitmap_render,
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90 | .bitmap_get_alloc = rfb_gc_bitmap_get_alloc
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91 | };
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92 |
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93 | static void rfb_gc_invalidate_rect(rfb_gc_t *rfbgc, gfx_rect_t *rect)
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94 | {
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95 | rfb_t *rfb = &rfbgc->rfb;
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96 | gfx_rect_t old_rect;
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97 | gfx_rect_t new_rect;
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98 |
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99 | if (gfx_rect_is_empty(rect))
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100 | return;
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101 |
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102 | if (!rfb->damage_valid) {
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103 | old_rect.p0.x = old_rect.p0.y = 0;
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104 | old_rect.p1.x = old_rect.p1.y = 0;
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105 | } else {
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106 | old_rect.p0.x = rfb->damage_rect.x;
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107 | old_rect.p0.y = rfb->damage_rect.y;
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108 | old_rect.p1.x = rfb->damage_rect.x + rfb->damage_rect.width;
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109 | old_rect.p1.y = rfb->damage_rect.y + rfb->damage_rect.height;
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110 | }
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111 |
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112 | gfx_rect_envelope(&old_rect, rect, &new_rect);
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113 |
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114 | rfb->damage_rect.x = new_rect.p0.x;
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115 | rfb->damage_rect.y = new_rect.p0.y;
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116 | rfb->damage_rect.width = new_rect.p1.x - new_rect.p0.x;
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117 | rfb->damage_rect.height = new_rect.p1.y - new_rect.p0.y;
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118 | }
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119 |
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120 | static errno_t rfb_ddev_get_gc(void *arg, sysarg_t *arg2, sysarg_t *arg3)
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121 | {
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122 | *arg2 = 0;
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123 | *arg3 = 42;
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124 | return EOK;
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125 | }
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126 |
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127 | static errno_t rfb_ddev_get_info(void *arg, ddev_info_t *info)
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128 | {
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129 | rfb_t *rfb = (rfb_t *) arg;
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130 |
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131 | ddev_info_init(info);
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132 |
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133 | info->rect.p0.x = 0;
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134 | info->rect.p0.y = 0;
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135 | info->rect.p1.x = rfb->width;
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136 | info->rect.p1.y = rfb->height;
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137 |
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138 | return EOK;
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139 | }
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140 |
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141 | /** Create RFB GC.
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142 | *
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143 | * @param rrgb Place to store pointer to new RFB GC
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144 | * @return EOK on success, ENOMEM if out of memory
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145 | */
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146 | static errno_t rgb_gc_create(rfb_gc_t **rrfb)
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147 | {
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148 | rfb_gc_t *rfb;
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149 |
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150 | rfb = calloc(1, sizeof(rfb_gc_t));
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151 | if (rfb == NULL)
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152 | return ENOMEM;
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153 |
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154 | *rrfb = rfb;
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155 | return EOK;
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156 | }
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157 |
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158 | /** Destroy RFB GC.
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159 | *
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160 | * @param rfb RFB GC
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161 | */
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162 | static void rfb_gc_destroy(rfb_gc_t *rfb)
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163 | {
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164 | free(rfb);
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165 | }
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166 |
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167 | /** Set clipping rectangle on RFB.
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168 | *
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169 | * @param arg RFB
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170 | * @param rect Rectangle or @c NULL
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171 | *
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172 | * @return EOK on success or an error code
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173 | */
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174 | static errno_t rfb_gc_set_clip_rect(void *arg, gfx_rect_t *rect)
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175 | {
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176 | rfb_gc_t *rfb = (rfb_gc_t *) arg;
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177 |
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178 | if (rect != NULL)
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179 | gfx_rect_clip(rect, &rfb->rect, &rfb->clip_rect);
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180 | else
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181 | rfb->clip_rect = rfb->rect;
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182 |
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183 | return EOK;
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184 | }
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185 |
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186 | /** Set color on RFB.
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187 | *
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188 | * Set drawing color on RFB GC.
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189 | *
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190 | * @param arg RFB
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191 | * @param color Color
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192 | *
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193 | * @return EOK on success or an error code
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194 | */
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195 | static errno_t rfb_gc_set_color(void *arg, gfx_color_t *color)
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196 | {
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197 | rfb_gc_t *rfb = (rfb_gc_t *) arg;
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198 | uint16_t r, g, b;
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199 |
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200 | gfx_color_get_rgb_i16(color, &r, &g, &b);
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201 | rfb->color = PIXEL(0, r >> 8, g >> 8, b >> 8);
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202 | return EOK;
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203 | }
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204 |
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205 | /** Fill rectangle on RFB.
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206 | *
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207 | * @param arg RFB
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208 | * @param rect Rectangle
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209 | *
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210 | * @return EOK on success or an error code
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211 | */
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212 | static errno_t rfb_gc_fill_rect(void *arg, gfx_rect_t *rect)
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213 | {
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214 | rfb_gc_t *rfb = (rfb_gc_t *) arg;
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215 | gfx_rect_t crect;
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216 | gfx_coord_t x, y;
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217 |
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218 | gfx_rect_clip(rect, &rfb->clip_rect, &crect);
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219 |
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220 | for (y = crect.p0.y; y < crect.p1.y; y++) {
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221 | for (x = crect.p0.x; x < crect.p1.x; x++) {
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222 | pixelmap_put_pixel(&rfb->rfb.framebuffer, x, y,
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223 | rfb->color);
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224 | }
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225 | }
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226 |
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227 | rfb_gc_invalidate_rect(rfb, &crect);
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228 |
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229 | return EOK;
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230 | }
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231 |
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232 | /** Create bitmap in RFB GC.
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233 | *
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234 | * @param arg RFB
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235 | * @param params Bitmap params
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236 | * @param alloc Bitmap allocation info or @c NULL
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237 | * @param rbm Place to store pointer to new bitmap
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238 | * @return EOK on success or an error code
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239 | */
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240 | errno_t rfb_gc_bitmap_create(void *arg, gfx_bitmap_params_t *params,
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241 | gfx_bitmap_alloc_t *alloc, void **rbm)
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242 | {
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243 | rfb_gc_t *rfb = (rfb_gc_t *) arg;
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244 | rfb_bitmap_t *rfbbm = NULL;
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245 | gfx_coord2_t dim;
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246 | errno_t rc;
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247 |
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248 | /* Check that we support all required flags */
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249 | if ((params->flags & ~(bmpf_color_key | bmpf_colorize)) != 0)
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250 | return ENOTSUP;
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251 |
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252 | rfbbm = calloc(1, sizeof(rfb_bitmap_t));
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253 | if (rfbbm == NULL)
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254 | return ENOMEM;
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255 |
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256 | gfx_coord2_subtract(¶ms->rect.p1, ¶ms->rect.p0, &dim);
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257 | rfbbm->rect = params->rect;
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258 | rfbbm->flags = params->flags;
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259 | rfbbm->key_color = params->key_color;
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260 |
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261 | if (alloc == NULL) {
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262 | rfbbm->alloc.pitch = dim.x * sizeof(uint32_t);
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263 | rfbbm->alloc.off0 = 0;
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264 | rfbbm->alloc.pixels = malloc(rfbbm->alloc.pitch * dim.y);
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265 | rfbbm->myalloc = true;
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266 |
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267 | if (rfbbm->alloc.pixels == NULL) {
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268 | rc = ENOMEM;
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269 | goto error;
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270 | }
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271 | } else {
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272 | rfbbm->alloc = *alloc;
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273 | }
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274 |
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275 | rfbbm->rfb = rfb;
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276 | *rbm = (void *)rfbbm;
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277 | return EOK;
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278 | error:
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279 | if (rbm != NULL)
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280 | free(rfbbm);
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281 | return rc;
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282 | }
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283 |
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284 | /** Destroy bitmap in RFB GC.
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285 | *
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286 | * @param bm Bitmap
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287 | * @return EOK on success or an error code
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288 | */
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289 | static errno_t rfb_gc_bitmap_destroy(void *bm)
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290 | {
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291 | rfb_bitmap_t *rfbbm = (rfb_bitmap_t *)bm;
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292 | if (rfbbm->myalloc)
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293 | free(rfbbm->alloc.pixels);
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294 | free(rfbbm);
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295 | return EOK;
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296 | }
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297 |
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298 | /** Render bitmap in RFB GC.
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299 | *
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300 | * @param bm Bitmap
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301 | * @param srect0 Source rectangle or @c NULL
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302 | * @param offs0 Offset or @c NULL
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303 | * @return EOK on success or an error code
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304 | */
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305 | static errno_t rfb_gc_bitmap_render(void *bm, gfx_rect_t *srect0,
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306 | gfx_coord2_t *offs0)
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307 | {
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308 | rfb_bitmap_t *rfbbm = (rfb_bitmap_t *)bm;
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309 | gfx_rect_t srect;
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310 | gfx_rect_t drect;
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311 | gfx_rect_t crect;
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312 | gfx_coord2_t offs;
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313 | gfx_coord2_t bmdim;
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314 | gfx_coord2_t dim;
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315 | gfx_coord_t x, y;
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316 | pixelmap_t pbm;
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317 | pixel_t color;
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318 |
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319 | if (srect0 != NULL)
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320 | srect = *srect0;
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321 | else
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322 | srect = rfbbm->rect;
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323 |
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324 | if (offs0 != NULL) {
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325 | offs = *offs0;
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326 | } else {
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327 | offs.x = 0;
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328 | offs.y = 0;
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329 | }
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330 |
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331 | /* Destination rectangle */
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332 | gfx_rect_translate(&offs, &srect, &drect);
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333 | gfx_rect_clip(&drect, &rfbbm->rfb->clip_rect, &crect);
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334 | gfx_coord2_subtract(&crect.p1, &crect.p0, &dim);
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335 | gfx_coord2_subtract(&rfbbm->rect.p1, &rfbbm->rect.p0, &bmdim);
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336 |
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337 | pbm.width = bmdim.x;
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338 | pbm.height = bmdim.y;
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339 | pbm.data = rfbbm->alloc.pixels;
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340 |
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341 | if ((rfbbm->flags & bmpf_color_key) == 0) {
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342 | /* Simple copy */
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343 | for (y = srect.p0.y; y < srect.p1.y; y++) {
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344 | for (x = srect.p0.x; x < srect.p1.x; x++) {
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345 | color = pixelmap_get_pixel(&pbm, x, y);
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346 | pixelmap_put_pixel(&rfbbm->rfb->rfb.framebuffer,
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347 | x + offs.x, y + offs.y, color);
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348 | }
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349 | }
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350 | } else if ((rfbbm->flags & bmpf_colorize) == 0) {
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351 | /* Color key */
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352 | for (y = srect.p0.y; y < srect.p1.y; y++) {
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353 | for (x = srect.p0.x; x < srect.p1.x; x++) {
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354 | color = pixelmap_get_pixel(&pbm, x, y);
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355 | if (color != rfbbm->key_color) {
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356 | pixelmap_put_pixel(&rfbbm->rfb->rfb.framebuffer,
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357 | x + offs.x, y + offs.y, color);
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358 | }
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359 | }
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360 | }
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361 | } else {
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362 | /* Color key & colorization */
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363 | for (y = srect.p0.y; y < srect.p1.y; y++) {
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364 | for (x = srect.p0.x; x < srect.p1.x; x++) {
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365 | color = pixelmap_get_pixel(&pbm, x, y);
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366 | if (color != rfbbm->key_color) {
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367 | pixelmap_put_pixel(&rfbbm->rfb->rfb.framebuffer,
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368 | x + offs.x, y + offs.y,
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369 | rfbbm->rfb->color);
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370 | }
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371 | }
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372 | }
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373 | }
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374 |
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375 | rfb_gc_invalidate_rect(rfbbm->rfb, &crect);
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376 |
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377 | return EOK;
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378 | }
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379 |
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380 | /** Get allocation info for bitmap in RFB GC.
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381 | *
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382 | * @param bm Bitmap
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383 | * @param alloc Place to store allocation info
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384 | * @return EOK on success or an error code
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385 | */
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386 | static errno_t rfb_gc_bitmap_get_alloc(void *bm, gfx_bitmap_alloc_t *alloc)
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387 | {
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388 | rfb_bitmap_t *rfbbm = (rfb_bitmap_t *)bm;
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389 | *alloc = rfbbm->alloc;
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390 | return EOK;
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391 | }
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392 |
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393 | static void syntax_print(void)
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394 | {
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395 | fprintf(stderr, "Usage: %s <name> <width> <height> [port]\n", NAME);
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396 | }
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397 |
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398 | static void client_connection(ipc_call_t *icall, void *arg)
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399 | {
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400 | rfb_t *rfb = (rfb_t *) arg;
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401 | rfb_gc_t *rfbgc;
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402 | ddev_srv_t srv;
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403 | sysarg_t svc_id;
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404 | gfx_context_t *gc;
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405 | errno_t rc;
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406 |
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407 | svc_id = ipc_get_arg2(icall);
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408 |
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409 | if (svc_id != 0) {
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410 | /* Set up protocol structure */
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411 | ddev_srv_initialize(&srv);
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412 | srv.ops = &rfb_ddev_ops;
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413 | srv.arg = (void *) rfb;
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414 |
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415 | /* Handle connection */
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416 | ddev_conn(icall, &srv);
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417 | } else {
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418 | rc = rgb_gc_create(&rfbgc);
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419 | if (rc != EOK) {
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420 | async_answer_0(icall, ENOMEM);
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421 | return;
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422 | }
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423 |
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424 | rfbgc->rect.p0.x = 0;
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425 | rfbgc->rect.p0.y = 0;
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426 | rfbgc->rect.p1.x = rfb->width;
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427 | rfbgc->rect.p1.y = rfb->height;
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428 | rfbgc->clip_rect = rfbgc->rect;
|
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429 |
|
---|
430 | rc = gfx_context_new(&rfb_gc_ops, (void *) rfbgc, &gc);
|
---|
431 | if (rc != EOK) {
|
---|
432 | rfb_gc_destroy(rfbgc);
|
---|
433 | async_answer_0(icall, ENOMEM);
|
---|
434 | return;
|
---|
435 | }
|
---|
436 |
|
---|
437 | /* GC connection */
|
---|
438 | gc_conn(icall, gc);
|
---|
439 | }
|
---|
440 | }
|
---|
441 |
|
---|
442 | int main(int argc, char **argv)
|
---|
443 | {
|
---|
444 | rfb_t rfb;
|
---|
445 | loc_srv_t *srv;
|
---|
446 |
|
---|
447 | log_init(NAME);
|
---|
448 |
|
---|
449 | if (argc <= 3) {
|
---|
450 | syntax_print();
|
---|
451 | return 1;
|
---|
452 | }
|
---|
453 |
|
---|
454 | const char *rfb_name = argv[1];
|
---|
455 |
|
---|
456 | char *endptr;
|
---|
457 | unsigned long width = strtoul(argv[2], &endptr, 0);
|
---|
458 | if (*endptr != 0) {
|
---|
459 | fprintf(stderr, "Invalid width\n");
|
---|
460 | syntax_print();
|
---|
461 | return 1;
|
---|
462 | }
|
---|
463 |
|
---|
464 | unsigned long height = strtoul(argv[3], &endptr, 0);
|
---|
465 | if (*endptr != 0) {
|
---|
466 | fprintf(stderr, "Invalid height\n");
|
---|
467 | syntax_print();
|
---|
468 | return 1;
|
---|
469 | }
|
---|
470 |
|
---|
471 | unsigned long port = 5900;
|
---|
472 | if (argc > 4) {
|
---|
473 | port = strtoul(argv[4], &endptr, 0);
|
---|
474 | if (*endptr != 0) {
|
---|
475 | fprintf(stderr, "Invalid port number\n");
|
---|
476 | syntax_print();
|
---|
477 | return 1;
|
---|
478 | }
|
---|
479 | }
|
---|
480 |
|
---|
481 | rfb_init(&rfb, width, height, rfb_name);
|
---|
482 |
|
---|
483 | async_set_fallback_port_handler(client_connection, &rfb);
|
---|
484 |
|
---|
485 | errno_t rc = loc_server_register(NAME, &srv);
|
---|
486 | if (rc != EOK) {
|
---|
487 | printf("%s: Unable to register server.\n", NAME);
|
---|
488 | return rc;
|
---|
489 | }
|
---|
490 |
|
---|
491 | char *service_name;
|
---|
492 | rc = asprintf(&service_name, "rfb/%s", rfb_name);
|
---|
493 | if (rc < 0) {
|
---|
494 | printf(NAME ": Unable to create service name\n");
|
---|
495 | return rc;
|
---|
496 | }
|
---|
497 |
|
---|
498 | service_id_t service_id;
|
---|
499 |
|
---|
500 | rc = loc_service_register(srv, service_name, fallback_port_id,
|
---|
501 | &service_id);
|
---|
502 | if (rc != EOK) {
|
---|
503 | printf(NAME ": Unable to register service %s.\n", service_name);
|
---|
504 | return rc;
|
---|
505 | }
|
---|
506 |
|
---|
507 | free(service_name);
|
---|
508 |
|
---|
509 | category_id_t ddev_cid;
|
---|
510 | rc = loc_category_get_id("display-device", &ddev_cid, IPC_FLAG_BLOCKING);
|
---|
511 | if (rc != EOK) {
|
---|
512 | fprintf(stderr, NAME ": Unable to get display device category id.\n");
|
---|
513 | return 1;
|
---|
514 | }
|
---|
515 |
|
---|
516 | rc = loc_service_add_to_cat(srv, service_id, ddev_cid);
|
---|
517 | if (rc != EOK) {
|
---|
518 | fprintf(stderr, NAME ": Unable to add service to display device category.\n");
|
---|
519 | return 1;
|
---|
520 | }
|
---|
521 |
|
---|
522 | rc = rfb_listen(&rfb, port);
|
---|
523 | if (rc != EOK) {
|
---|
524 | fprintf(stderr, NAME ": Unable to listen at rfb port\n");
|
---|
525 | return 2;
|
---|
526 | }
|
---|
527 |
|
---|
528 | printf("%s: Accepting connections\n", NAME);
|
---|
529 | task_retval(0);
|
---|
530 | async_manager();
|
---|
531 |
|
---|
532 | /* Not reached */
|
---|
533 | return 0;
|
---|
534 | }
|
---|