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: caca0.c 1013 2006-09-09 15:38:06Z sam $ |
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7 | * |
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8 | * This library is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the Do What The Fuck You Want To |
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10 | * Public License, Version 2, as published by Sam Hocevar. See |
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11 | * http://sam.zoy.org/wtfpl/COPYING for more details. |
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12 | */ |
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13 | |
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14 | /* |
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15 | * This file contains glue code for applications using the pre-1.0 |
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16 | * libcaca API. |
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17 | */ |
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18 | |
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19 | #include "config.h" |
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20 | #include "common.h" |
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21 | |
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22 | #if !defined(__KERNEL__) |
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23 | # include <stdio.h> |
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24 | #endif |
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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 | /* These variables are needed to emulate old non-thread safe behaviour */ |
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30 | cucul_canvas_t *__caca0_cv = NULL; |
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31 | caca_display_t *__caca0_dp = NULL; |
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32 | unsigned char __caca0_fg; |
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33 | unsigned char __caca0_bg; |
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34 | char __caca0_utf8[2] = " "; |
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35 | |
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36 | /* These functions are needed, too */ |
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37 | int __caca0_init(void); |
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38 | void __caca0_end(void); |
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39 | unsigned int __caca0_get_event(unsigned int, int); |
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40 | int __caca0_get_feature(int); |
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41 | void __caca0_set_feature(int); |
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42 | char const *__caca0_get_feature_name(int); |
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43 | cucul_canvas_t *__caca0_load_sprite(char const *); |
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44 | |
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45 | /* Emulation functions */ |
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46 | int __caca0_init(void) |
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47 | { |
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48 | __caca0_cv = cucul_create_canvas(0, 0); |
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49 | if(!__caca0_cv) |
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50 | return -1; |
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51 | __caca0_dp = caca_create_display(__caca0_cv); |
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52 | if(!__caca0_dp) |
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53 | { |
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54 | cucul_free_canvas(__caca0_cv); |
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55 | __caca0_cv = NULL; |
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56 | return -1; |
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57 | } |
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58 | __caca0_fg = CUCUL_COLOR_LIGHTGRAY; |
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59 | __caca0_bg = CUCUL_COLOR_BLACK; |
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60 | return 0; |
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61 | } |
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62 | |
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63 | void __caca0_end(void) |
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64 | { |
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65 | caca_free_display(__caca0_dp); |
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66 | __caca0_dp = NULL; |
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67 | cucul_free_canvas(__caca0_cv); |
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68 | __caca0_cv = NULL; |
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69 | } |
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70 | |
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71 | unsigned int __caca0_get_event(unsigned int m, int t) |
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72 | { |
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73 | caca_event_t ev; |
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74 | int ret; |
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75 | |
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76 | ret = caca_get_event(__caca0_dp, (m >> 24) & 0x7f, &ev, t); |
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77 | if(!ret) |
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78 | return 0x00000000; |
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79 | |
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80 | switch(ev.type) |
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81 | { |
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82 | case CACA_EVENT_KEY_PRESS: |
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83 | return 0x01000000 | ev.data.key.ch; |
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84 | case CACA_EVENT_KEY_RELEASE: |
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85 | return 0x02000000 | ev.data.key.ch; |
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86 | case CACA_EVENT_MOUSE_PRESS: |
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87 | return 0x04000000 | ev.data.mouse.button; |
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88 | case CACA_EVENT_MOUSE_RELEASE: |
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89 | return 0x08000000 | ev.data.mouse.button; |
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90 | case CACA_EVENT_MOUSE_MOTION: |
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91 | return 0x10000000 | ((ev.data.mouse.x & 0xfff) << 12) |
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92 | | (ev.data.mouse.y & 0xfff); |
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93 | case CACA_EVENT_RESIZE: |
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94 | return 0x20000000; |
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95 | default: |
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96 | break; |
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97 | } |
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98 | |
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99 | return 0x00000000; |
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100 | } |
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101 | |
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102 | enum caca_feature |
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103 | { |
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104 | CACA_BACKGROUND = 0x10, |
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105 | CACA_BACKGROUND_BLACK = 0x11, |
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106 | CACA_BACKGROUND_SOLID = 0x12, |
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107 | #define CACA_BACKGROUND_MIN 0x11 |
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108 | #define CACA_BACKGROUND_MAX 0x12 |
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109 | CACA_ANTIALIASING = 0x20, |
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110 | CACA_ANTIALIASING_NONE = 0x21, |
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111 | CACA_ANTIALIASING_PREFILTER = 0x22, |
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112 | #define CACA_ANTIALIASING_MIN 0x21 |
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113 | #define CACA_ANTIALIASING_MAX 0x22 |
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114 | CACA_DITHERING = 0x30, |
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115 | CACA_DITHERING_NONE = 0x31, |
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116 | CACA_DITHERING_ORDERED2 = 0x32, |
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117 | CACA_DITHERING_ORDERED4 = 0x33, |
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118 | CACA_DITHERING_ORDERED8 = 0x34, |
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119 | CACA_DITHERING_RANDOM = 0x35, |
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120 | #define CACA_DITHERING_MIN 0x31 |
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121 | #define CACA_DITHERING_MAX 0x35 |
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122 | CACA_FEATURE_UNKNOWN = 0xffff |
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123 | }; |
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124 | |
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125 | int __caca0_get_feature(int feature) |
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126 | { |
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127 | return feature; |
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128 | } |
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129 | |
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130 | void __caca0_set_feature(int feature) |
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131 | { |
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132 | switch(feature) |
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133 | { |
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134 | case CACA_BACKGROUND: |
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135 | feature = CACA_BACKGROUND_SOLID; |
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136 | case CACA_BACKGROUND_BLACK: |
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137 | case CACA_BACKGROUND_SOLID: |
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138 | //_caca_background = feature; |
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139 | break; |
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140 | |
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141 | case CACA_ANTIALIASING: |
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142 | feature = CACA_ANTIALIASING_PREFILTER; |
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143 | case CACA_ANTIALIASING_NONE: |
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144 | case CACA_ANTIALIASING_PREFILTER: |
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145 | //_caca_antialiasing = feature; |
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146 | break; |
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147 | |
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148 | case CACA_DITHERING: |
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149 | feature = CACA_DITHERING_ORDERED4; |
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150 | case CACA_DITHERING_NONE: |
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151 | case CACA_DITHERING_ORDERED2: |
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152 | case CACA_DITHERING_ORDERED4: |
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153 | case CACA_DITHERING_ORDERED8: |
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154 | case CACA_DITHERING_RANDOM: |
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155 | //_caca_dithering = feature; |
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156 | break; |
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157 | } |
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158 | } |
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159 | |
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160 | char const *__caca0_get_feature_name(int feature) |
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161 | { |
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162 | switch(feature) |
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163 | { |
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164 | case CACA_BACKGROUND_BLACK: return "black background"; |
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165 | case CACA_BACKGROUND_SOLID: return "solid background"; |
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166 | |
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167 | case CACA_ANTIALIASING_NONE: return "no antialiasing"; |
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168 | case CACA_ANTIALIASING_PREFILTER: return "prefilter antialiasing"; |
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169 | |
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170 | case CACA_DITHERING_NONE: return "no dithering"; |
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171 | case CACA_DITHERING_ORDERED2: return "2x2 ordered dithering"; |
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172 | case CACA_DITHERING_ORDERED4: return "4x4 ordered dithering"; |
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173 | case CACA_DITHERING_ORDERED8: return "8x8 ordered dithering"; |
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174 | case CACA_DITHERING_RANDOM: return "random dithering"; |
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175 | |
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176 | default: return "unknown"; |
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177 | } |
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178 | } |
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179 | |
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180 | cucul_canvas_t *__caca0_load_sprite(char const *file) |
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181 | { |
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182 | cucul_buffer_t *buf; |
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183 | cucul_canvas_t *cv; |
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184 | |
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185 | buf = cucul_load_file(file); |
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186 | if(!buf) |
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187 | return NULL; |
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188 | cv = cucul_import_canvas(buf, ""); |
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189 | cucul_free_buffer(buf); |
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190 | if(!cv) |
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191 | return NULL; |
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192 | |
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193 | return cv; |
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194 | } |
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195 | |
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