1 | /* |
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2 | * libcaca Colour ASCII-Art library |
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3 | * Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org> |
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4 | * All Rights Reserved |
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5 | * |
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6 | * $Id: raw.c 2962 2008-10-18 11:07:05Z sam $ |
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7 | * |
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8 | * This library is free software. It comes without any warranty, to |
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9 | * the extent permitted by applicable law. You can redistribute it |
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10 | * and/or modify it under the terms of the Do What The Fuck You Want |
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11 | * To Public License, Version 2, as published by Sam Hocevar. See |
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12 | * http://sam.zoy.org/wtfpl/COPYING for more details. |
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13 | */ |
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14 | |
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15 | /* |
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16 | * This file contains the libcaca raw input and output driver |
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17 | */ |
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18 | |
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19 | #include "config.h" |
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20 | |
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21 | #if !defined(__KERNEL__) |
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22 | |
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23 | #include <stdio.h> |
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24 | #include <stdlib.h> |
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25 | |
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26 | #include "caca.h" |
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27 | #include "caca_internals.h" |
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28 | |
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29 | static int raw_init_graphics(caca_display_t *dp) |
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30 | { |
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31 | int width = caca_get_canvas_width(dp->cv); |
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32 | int height = caca_get_canvas_height(dp->cv); |
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33 | char const *geometry; |
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34 | |
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35 | #if defined(HAVE_GETENV) |
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36 | geometry = getenv("CACA_GEOMETRY"); |
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37 | if(geometry && *geometry) |
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38 | sscanf(geometry, "%ux%u", &width, &height); |
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39 | #endif |
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40 | |
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41 | dp->resize.allow = 1; |
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42 | caca_set_canvas_size(dp->cv, width ? width : 80, height ? height : 24); |
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43 | dp->resize.allow = 0; |
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44 | |
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45 | return 0; |
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46 | } |
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47 | |
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48 | static int raw_end_graphics(caca_display_t *dp) |
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49 | { |
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50 | return 0; |
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51 | } |
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52 | |
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53 | static int raw_set_display_title(caca_display_t *dp, char const *title) |
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54 | { |
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55 | return -1; |
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56 | } |
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57 | |
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58 | static int raw_get_display_width(caca_display_t const *dp) |
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59 | { |
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60 | return 0; |
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61 | } |
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62 | |
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63 | static int raw_get_display_height(caca_display_t const *dp) |
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64 | { |
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65 | return 0; |
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66 | } |
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67 | |
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68 | static void raw_display(caca_display_t *dp) |
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69 | { |
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70 | void *buffer; |
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71 | size_t len; |
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72 | |
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73 | buffer = caca_export_memory(dp->cv, "caca", &len); |
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74 | if(!buffer) |
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75 | return; |
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76 | fwrite(buffer, len, 1, stdout); |
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77 | fflush(stdout); |
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78 | free(buffer); |
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79 | } |
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80 | |
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81 | static void raw_handle_resize(caca_display_t *dp) |
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82 | { |
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83 | ; |
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84 | } |
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85 | |
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86 | static int raw_get_event(caca_display_t *dp, caca_privevent_t *ev) |
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87 | { |
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88 | ev->type = CACA_EVENT_NONE; |
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89 | return 0; |
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90 | } |
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91 | |
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92 | /* |
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93 | * Driver initialisation |
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94 | */ |
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95 | |
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96 | int raw_install(caca_display_t *dp) |
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97 | { |
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98 | dp->drv.id = CACA_DRIVER_RAW; |
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99 | dp->drv.driver = "raw"; |
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100 | |
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101 | dp->drv.init_graphics = raw_init_graphics; |
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102 | dp->drv.end_graphics = raw_end_graphics; |
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103 | dp->drv.set_display_title = raw_set_display_title; |
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104 | dp->drv.get_display_width = raw_get_display_width; |
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105 | dp->drv.get_display_height = raw_get_display_height; |
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106 | dp->drv.display = raw_display; |
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107 | dp->drv.handle_resize = raw_handle_resize; |
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108 | dp->drv.get_event = raw_get_event; |
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109 | dp->drv.set_mouse = NULL; |
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110 | dp->drv.set_cursor = NULL; |
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111 | |
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112 | return 0; |
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113 | } |
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114 | |
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115 | #endif /* !__KERNEL__ */ |
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