1 | /* |
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2 | * libcaca 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 | * This library is free software; you can redistribute it and/or |
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7 | * modify it under the terms of the Do What The Fuck You Want To |
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8 | * Public License, Version 2, as published by Sam Hocevar. See |
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9 | * http://sam.zoy.org/wtfpl/COPYING for more details. |
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10 | */ |
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11 | |
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12 | /** \file driver_win32.c |
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13 | * \version \$Id: driver_win32.c 550 2006-03-08 10:33:01Z sam $ |
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14 | * \author Sam Hocevar <sam@zoy.org> |
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15 | * \brief Win32 driver |
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16 | * |
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17 | * This file contains the libcaca Win32 input and output driver |
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18 | */ |
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19 | |
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20 | #include "config.h" |
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21 | |
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22 | #if defined(USE_WIN32) |
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23 | |
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24 | #include <windows.h> |
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25 | |
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26 | #include <stdlib.h> |
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27 | |
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28 | #include "caca.h" |
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29 | #include "caca_internals.h" |
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30 | #include "cucul.h" |
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31 | #include "cucul_internals.h" |
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32 | |
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33 | /* |
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34 | * Global variables |
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35 | */ |
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36 | |
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37 | static int const win32_fg_palette[] = |
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38 | { |
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39 | 0, |
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40 | FOREGROUND_BLUE, |
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41 | FOREGROUND_GREEN, |
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42 | FOREGROUND_GREEN | FOREGROUND_BLUE, |
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43 | FOREGROUND_RED, |
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44 | FOREGROUND_RED | FOREGROUND_BLUE, |
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45 | FOREGROUND_RED | FOREGROUND_GREEN, |
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46 | FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE, |
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47 | FOREGROUND_INTENSITY, |
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48 | FOREGROUND_INTENSITY | FOREGROUND_BLUE, |
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49 | FOREGROUND_INTENSITY | FOREGROUND_GREEN, |
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50 | FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_BLUE, |
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51 | FOREGROUND_INTENSITY | FOREGROUND_RED, |
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52 | FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_BLUE, |
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53 | FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN, |
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54 | FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE |
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55 | }; |
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56 | |
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57 | static int const win32_bg_palette[] = |
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58 | { |
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59 | 0, |
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60 | BACKGROUND_BLUE, |
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61 | BACKGROUND_GREEN, |
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62 | BACKGROUND_GREEN | BACKGROUND_BLUE, |
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63 | BACKGROUND_RED, |
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64 | BACKGROUND_RED | BACKGROUND_BLUE, |
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65 | BACKGROUND_RED | BACKGROUND_GREEN, |
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66 | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE, |
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67 | BACKGROUND_INTENSITY, |
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68 | BACKGROUND_INTENSITY | BACKGROUND_BLUE, |
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69 | BACKGROUND_INTENSITY | BACKGROUND_GREEN, |
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70 | BACKGROUND_INTENSITY | BACKGROUND_GREEN | BACKGROUND_BLUE, |
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71 | BACKGROUND_INTENSITY | BACKGROUND_RED, |
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72 | BACKGROUND_INTENSITY | BACKGROUND_RED | BACKGROUND_BLUE, |
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73 | BACKGROUND_INTENSITY | BACKGROUND_RED | BACKGROUND_GREEN, |
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74 | BACKGROUND_INTENSITY | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE |
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75 | }; |
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76 | |
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77 | struct driver_private |
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78 | { |
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79 | HANDLE hin, hout; |
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80 | HANDLE front, back; |
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81 | CHAR_INFO *buffer; |
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82 | CONSOLE_CURSOR_INFO cci; |
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83 | }; |
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84 | |
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85 | static int win32_init_graphics(caca_t *kk) |
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86 | { |
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87 | CONSOLE_SCREEN_BUFFER_INFO csbi; |
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88 | COORD size; |
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89 | |
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90 | kk->drv.p = malloc(sizeof(struct driver_private)); |
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91 | |
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92 | /* This call is allowed to fail in case we already have a console */ |
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93 | AllocConsole(); |
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94 | |
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95 | kk->drv.p->hin = GetStdHandle(STD_INPUT_HANDLE); |
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96 | kk->drv.p->hout = CreateFile("CONOUT$", GENERIC_READ | GENERIC_WRITE, |
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97 | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, |
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98 | OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); |
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99 | if(kk->drv.p->hout == INVALID_HANDLE_VALUE) |
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100 | return -1; |
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101 | |
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102 | GetConsoleCursorInfo(kk->drv.p->hout, &kk->drv.p->cci); |
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103 | kk->drv.p->cci.bVisible = FALSE; |
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104 | SetConsoleCursorInfo(kk->drv.p->hout, &kk->drv.p->cci); |
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105 | |
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106 | SetConsoleMode(kk->drv.p->hout, ENABLE_MOUSE_INPUT); |
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107 | |
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108 | kk->drv.p->front = |
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109 | CreateConsoleScreenBuffer(GENERIC_READ | GENERIC_WRITE, |
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110 | 0, NULL, CONSOLE_TEXTMODE_BUFFER, NULL); |
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111 | if(!kk->drv.p->front || kk->drv.p->front == INVALID_HANDLE_VALUE) |
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112 | return -1; |
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113 | |
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114 | kk->drv.p->back = |
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115 | CreateConsoleScreenBuffer(GENERIC_READ | GENERIC_WRITE, |
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116 | 0, NULL, CONSOLE_TEXTMODE_BUFFER, NULL); |
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117 | if(!kk->drv.p->back || kk->drv.p->back == INVALID_HANDLE_VALUE) |
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118 | return -1; |
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119 | |
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120 | if(!GetConsoleScreenBufferInfo(kk->drv.p->hout, &csbi)) |
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121 | return -1; |
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122 | |
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123 | /* Sample code to get the biggest possible window */ |
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124 | //size = GetLargestConsoleWindowSize(kk->drv.p->hout); |
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125 | cucul_set_size(kk->qq, csbi.srWindow.Right - csbi.srWindow.Left + 1, |
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126 | csbi.srWindow.Bottom - csbi.srWindow.Top + 1); |
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127 | size.X = kk->qq->width; |
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128 | size.Y = kk->qq->height; |
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129 | SetConsoleScreenBufferSize(kk->drv.p->front, size); |
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130 | SetConsoleScreenBufferSize(kk->drv.p->back, size); |
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131 | |
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132 | SetConsoleMode(kk->drv.p->front, 0); |
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133 | SetConsoleMode(kk->drv.p->back, 0); |
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134 | |
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135 | GetConsoleCursorInfo(kk->drv.p->front, &kk->drv.p->cci); |
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136 | kk->drv.p->cci.dwSize = 0; |
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137 | kk->drv.p->cci.bVisible = FALSE; |
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138 | SetConsoleCursorInfo(kk->drv.p->front, &kk->drv.p->cci); |
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139 | SetConsoleCursorInfo(kk->drv.p->back, &kk->drv.p->cci); |
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140 | |
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141 | SetConsoleActiveScreenBuffer(kk->drv.p->front); |
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142 | |
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143 | kk->drv.p->buffer = malloc(kk->qq->width * kk->qq->height |
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144 | * sizeof(CHAR_INFO)); |
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145 | if(kk->drv.p->buffer == NULL) |
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146 | return -1; |
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147 | |
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148 | return 0; |
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149 | } |
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150 | |
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151 | static int win32_end_graphics(caca_t *kk) |
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152 | { |
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153 | SetConsoleActiveScreenBuffer(kk->drv.p->hout); |
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154 | CloseHandle(kk->drv.p->back); |
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155 | CloseHandle(kk->drv.p->front); |
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156 | |
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157 | SetConsoleTextAttribute(kk->drv.p->hout, FOREGROUND_INTENSITY |
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158 | | FOREGROUND_RED |
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159 | | FOREGROUND_GREEN |
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160 | | FOREGROUND_BLUE); |
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161 | kk->drv.p->cci.bVisible = TRUE; |
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162 | SetConsoleCursorInfo(kk->drv.p->hout, &kk->drv.p->cci); |
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163 | CloseHandle(kk->drv.p->hout); |
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164 | |
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165 | free(kk->drv.p); |
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166 | |
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167 | return 0; |
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168 | } |
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169 | |
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170 | static int win32_set_window_title(caca_t *kk, char const *title) |
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171 | { |
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172 | SetConsoleTitle(title); |
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173 | return 0; |
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174 | } |
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175 | |
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176 | static unsigned int win32_get_window_width(caca_t *kk) |
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177 | { |
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178 | /* FIXME */ |
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179 | |
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180 | /* Fallback to a 6x10 font */ |
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181 | return kk->qq->width * 6; |
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182 | } |
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183 | |
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184 | static unsigned int win32_get_window_height(caca_t *kk) |
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185 | { |
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186 | /* FIXME */ |
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187 | |
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188 | /* Fallback to a 6x10 font */ |
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189 | return kk->qq->height * 10; |
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190 | } |
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191 | |
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192 | static void win32_display(caca_t *kk) |
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193 | { |
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194 | COORD size, pos; |
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195 | SMALL_RECT rect; |
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196 | unsigned int i; |
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197 | |
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198 | /* Render everything to our back buffer */ |
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199 | for(i = 0; i < kk->qq->width * kk->qq->height; i++) |
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200 | { |
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201 | kk->drv.p->buffer[i].Char.AsciiChar = kk->qq->chars[i] & 0x7f; |
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202 | kk->drv.p->buffer[i].Attributes = |
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203 | win32_fg_palette[kk->qq->attr[i] & 0xf] |
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204 | | win32_bg_palette[kk->qq->attr[i] >> 4]; |
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205 | } |
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206 | |
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207 | /* Blit the back buffer to the front buffer */ |
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208 | size.X = kk->qq->width; |
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209 | size.Y = kk->qq->height; |
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210 | pos.X = pos.Y = 0; |
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211 | rect.Left = rect.Top = 0; |
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212 | rect.Right = kk->qq->width - 1; |
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213 | rect.Bottom = kk->qq->height - 1; |
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214 | WriteConsoleOutput(kk->drv.p->front, kk->drv.p->buffer, size, pos, &rect); |
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215 | } |
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216 | |
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217 | static void win32_handle_resize(caca_t *kk, unsigned int *new_width, |
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218 | unsigned int *new_height) |
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219 | { |
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220 | /* Nothing to do here. */ |
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221 | *new_width = kk->qq->width; |
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222 | *new_height = kk->qq->height; |
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223 | } |
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224 | |
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225 | static unsigned int win32_get_event(caca_t *kk) |
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226 | { |
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227 | INPUT_RECORD rec; |
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228 | DWORD num; |
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229 | |
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230 | for( ; ; ) |
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231 | { |
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232 | GetNumberOfConsoleInputEvents(kk->drv.p->hin, &num); |
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233 | if(num == 0) |
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234 | break; |
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235 | |
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236 | ReadConsoleInput(kk->drv.p->hin, &rec, 1, &num); |
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237 | if(rec.EventType == KEY_EVENT) |
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238 | { |
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239 | unsigned int event; |
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240 | |
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241 | if(rec.Event.KeyEvent.bKeyDown) |
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242 | event = CACA_EVENT_KEY_PRESS; |
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243 | else |
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244 | event = CACA_EVENT_KEY_RELEASE; |
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245 | |
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246 | if(rec.Event.KeyEvent.uChar.AsciiChar) |
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247 | return event | rec.Event.KeyEvent.uChar.AsciiChar; |
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248 | } |
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249 | |
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250 | if(rec.EventType == MOUSE_EVENT) |
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251 | { |
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252 | if(rec.Event.MouseEvent.dwEventFlags == 0) |
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253 | { |
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254 | if(rec.Event.MouseEvent.dwButtonState & 0x01) |
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255 | return CACA_EVENT_MOUSE_PRESS | 0x000001; |
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256 | |
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257 | if(rec.Event.MouseEvent.dwButtonState & 0x02) |
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258 | return CACA_EVENT_MOUSE_PRESS | 0x000002; |
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259 | } |
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260 | else if(rec.Event.MouseEvent.dwEventFlags == MOUSE_MOVED) |
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261 | { |
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262 | COORD pos = rec.Event.MouseEvent.dwMousePosition; |
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263 | |
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264 | if(kk->mouse_x == (unsigned int)pos.X && |
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265 | kk->mouse_y == (unsigned int)pos.Y) |
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266 | continue; |
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267 | |
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268 | kk->mouse_x = pos.X; |
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269 | kk->mouse_y = pos.Y; |
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270 | |
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271 | return CACA_EVENT_MOUSE_MOTION | (kk->mouse_x << 12) | kk->mouse_y; |
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272 | } |
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273 | #if 0 |
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274 | else if(rec.Event.MouseEvent.dwEventFlags == DOUBLE_CLICK) |
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275 | { |
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276 | cout << rec.Event.MouseEvent.dwMousePosition.X << "," << |
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277 | rec.Event.MouseEvent.dwMousePosition.Y << " " << flush; |
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278 | } |
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279 | else if(rec.Event.MouseEvent.dwEventFlags == MOUSE_WHEELED) |
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280 | { |
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281 | SetConsoleCursorPosition(hOut, |
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282 | WheelWhere); |
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283 | if(rec.Event.MouseEvent.dwButtonState & 0xFF000000) |
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284 | cout << "Down" << flush; |
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285 | else |
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286 | cout << "Up " << flush; |
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287 | } |
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288 | #endif |
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289 | } |
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290 | |
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291 | /* Unknown event */ |
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292 | return CACA_EVENT_NONE; |
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293 | } |
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294 | |
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295 | /* No event */ |
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296 | return CACA_EVENT_NONE; |
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297 | } |
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298 | |
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299 | /* |
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300 | * Driver initialisation |
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301 | */ |
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302 | |
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303 | void win32_init_driver(caca_t *kk) |
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304 | { |
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305 | kk->drv.driver = CACA_DRIVER_WIN32; |
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306 | |
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307 | kk->drv.init_graphics = win32_init_graphics; |
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308 | kk->drv.end_graphics = win32_end_graphics; |
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309 | kk->drv.set_window_title = win32_set_window_title; |
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310 | kk->drv.get_window_width = win32_get_window_width; |
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311 | kk->drv.get_window_height = win32_get_window_height; |
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312 | kk->drv.display = win32_display; |
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313 | kk->drv.handle_resize = win32_handle_resize; |
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314 | kk->drv.get_event = win32_get_event; |
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315 | } |
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316 | |
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317 | #endif /* USE_WIN32 */ |
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318 | |
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