1 | /*
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2 | * Copyright (c) 2011 Martin Decky
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | *
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9 | * - Redistributions of source code must retain the above copyright
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10 | * notice, this list of conditions and the following disclaimer.
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11 | * - Redistributions in binary form must reproduce the above copyright
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12 | * notice, this list of conditions and the following disclaimer in the
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13 | * documentation and/or other materials provided with the distribution.
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14 | * - The name of the author may not be used to endorse or promote products
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15 | * derived from this software without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 | */
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28 |
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29 | #ifndef FB_FB_H_
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30 | #define FB_FB_H_
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31 |
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32 | #include <sys/types.h>
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33 | #include <bool.h>
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34 | #include <loc.h>
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35 | #include <io/console.h>
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36 | #include <io/style.h>
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37 | #include <io/color.h>
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38 | #include <fb.h>
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39 | #include <screenbuffer.h>
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40 | #include <imgmap.h>
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41 |
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42 | struct fbdev;
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43 | struct fbvp;
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44 |
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45 | typedef struct {
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46 | int (* yield)(struct fbdev *dev);
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47 | int (* claim)(struct fbdev *dev);
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48 | void (* pointer_update)(struct fbdev *dev, sysarg_t x, sysarg_t y,
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49 | bool visible);
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50 |
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51 | int (* get_resolution)(struct fbdev *dev, sysarg_t *width,
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52 | sysarg_t *height);
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53 | void (* font_metrics)(struct fbdev *dev, sysarg_t width,
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54 | sysarg_t height, sysarg_t *cols, sysarg_t *rows);
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55 |
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56 | int (* vp_create)(struct fbdev *dev, struct fbvp *vp);
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57 | void (* vp_destroy)(struct fbdev *dev, struct fbvp *vp);
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58 |
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59 | void (* vp_clear)(struct fbdev *dev, struct fbvp *vp);
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60 | console_caps_t (* vp_get_caps)(struct fbdev *dev, struct fbvp *vp);
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61 |
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62 | void (* vp_cursor_update)(struct fbdev *dev, struct fbvp *vp,
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63 | sysarg_t prev_col, sysarg_t prev_row, sysarg_t col, sysarg_t row,
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64 | bool visible);
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65 | void (* vp_cursor_flash)(struct fbdev *dev, struct fbvp *vp,
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66 | sysarg_t col, sysarg_t row);
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67 |
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68 | void (* vp_char_update)(struct fbdev *dev, struct fbvp *vp, sysarg_t col,
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69 | sysarg_t row);
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70 |
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71 | void (* vp_imgmap_damage)(struct fbdev *dev, struct fbvp *vp,
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72 | imgmap_t *imgmap, sysarg_t col, sysarg_t row, sysarg_t cols,
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73 | sysarg_t rows);
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74 | } fbdev_ops_t;
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75 |
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76 | typedef struct fbdev {
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77 | link_t link;
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78 |
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79 | atomic_t refcnt;
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80 | bool claimed;
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81 |
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82 | sysarg_t index;
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83 | service_id_t dsid;
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84 | struct fbvp *active_vp;
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85 |
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86 | list_t vps;
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87 | list_t frontbufs;
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88 | list_t imagemaps;
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89 | list_t sequences;
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90 |
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91 | fbdev_ops_t ops;
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92 | void *data;
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93 | } fbdev_t;
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94 |
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95 | typedef struct fbvp {
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96 | link_t link;
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97 |
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98 | sysarg_t x;
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99 | sysarg_t y;
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100 |
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101 | sysarg_t width;
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102 | sysarg_t height;
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103 |
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104 | sysarg_t cols;
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105 | sysarg_t rows;
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106 |
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107 | char_attrs_t attrs;
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108 | list_t sequences;
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109 |
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110 | screenbuffer_t *backbuf;
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111 | sysarg_t top_row;
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112 |
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113 | bool cursor_active;
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114 | bool cursor_flash;
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115 |
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116 | void *data;
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117 | } fbvp_t;
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118 |
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119 | typedef struct {
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120 | link_t link;
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121 |
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122 | size_t size;
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123 | unsigned int flags;
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124 | void *data;
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125 | } frontbuf_t;
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126 |
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127 | typedef struct {
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128 | link_t link;
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129 | link_t seq_link;
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130 |
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131 | size_t size;
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132 | unsigned int flags;
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133 | void *data;
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134 | } imagemap_t;
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135 |
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136 | typedef struct {
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137 | link_t link;
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138 |
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139 | list_t imagemaps;
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140 | size_t count;
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141 | } sequence_t;
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142 |
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143 | typedef struct {
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144 | link_t link;
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145 |
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146 | sequence_t *seq;
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147 | size_t current;
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148 | } sequence_vp_t;
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149 |
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150 | extern fbdev_t *fbdev_register(fbdev_ops_t *, void *);
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151 |
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152 | #endif
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