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annotate include/mb_graph_engine_skia.h @ 465:d8181696b689 Android_Skia

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Move functions into graphic engine layers. Cairo and Skia have their own header files and C/C++ files. Some functions are refactoried and move into graphic engine layer to make reset of MadButterfly independently from graphic engines.
author Thinker K.F. Li <thinker@branda.to>
date Thu, 12 Nov 2009 21:22:30 +0800
parents
children 4dc0be6c044a
rev   line source
465
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
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1 #ifndef __MB_GE_SKIA_H_
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2 #define __MB_GE_SKIA_H_
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3
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4 #include <stdio.h>
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5 #include "mb_img_ldr.h"
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6
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7 /*! \defgroup mb_ge_skia MadButterfly Graphic Engine with Skia
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8 * @{
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9 */
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10 #define MBE_OPERATOR_CLEAR CAIRO_OPERATOR_CLEAR
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11 #define MBE_OPERATOR_SOURCE CAIRO_OPERATOR_SOURCE
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12 #define MBE_STATUS_SUCCESS CAIRO_STATUS_SUCCESS
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13
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14 #define mbe_ft_font_face_create_for_pattern
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15 #define mbe_image_surface_create_from_png
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16 #define mbe_pattern_add_color_stop_rgba
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17 #define mbe_pattern_create_for_surface
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18 #define mbe_scaled_font_text_extents
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19 #define mbe_image_surface_get_stride
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20 #define mbe_image_surface_get_height
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21 #define mbe_image_surface_get_width
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22 #define mbe_image_surface_get_data
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23 #define mbe_scaled_font_reference
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24 #define mbe_pattern_create_radial
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25 #define mbe_pattern_create_linear
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26 #define mbe_xlib_surface_create
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27 #define mbe_scaled_font_destroy
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28 #define mbe_font_face_reference
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29 #define mbe_set_source_surface
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30 #define mbe_scaled_font_status
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31 #define mbe_scaled_font_create
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32 #define mbe_pattern_set_matrix
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33 #define mbe_font_face_destroy
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34 #define mbe_paint_with_alpha
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35 #define mbe_font_face_status
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36 #define mbe_surface_destroy
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37 #define mbe_set_source_rgba
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38 #define mbe_set_scaled_font
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39 #define mbe_pattern_destroy
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40 #define mbe_get_scaled_font
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41 #define mbe_set_source_rgb
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42 #define mbe_set_line_width
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43 #define mbe_get_font_face
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44 #define mbe_fill_preserve
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45 #define mbe_set_operator
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46 #define mbe_get_operator
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47 #define mbe_set_source
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48 #define mbe_reset_clip
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49 #define mbe_get_target
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50 #define mbe_close_path
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51 #define mbe_text_path
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52 #define mbe_show_text
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53 #define mbe_rectangle
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54 #define mbe_in_stroke
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55 #define mbe_new_path
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56 #define mbe_curve_to
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57 #define mbe_restore
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58 #define mbe_move_to
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59 #define mbe_line_to
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60 #define mbe_in_fill
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61 #define mbe_destroy
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62 #define mbe_stroke
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63 #define mbe_create
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64 #define mbe_paint
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65 #define mbe_save
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66 #define mbe_fill
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67 #define mbe_clip
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68
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69 typedef cairo_text_extents_t mbe_text_extents_t;
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70 typedef cairo_scaled_font_t mbe_scaled_font_t;
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71 typedef cairo_font_face_t mbe_font_face_t;
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72 typedef cairo_operator_t mbe_operator_t;
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73 typedef cairo_surface_t mbe_surface_t;
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74 typedef cairo_pattern_t mbe_pattern_t;
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75 typedef cairo_status_t mbe_status_t;
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76 typedef cairo_matrix_t mbe_matrix_t;
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77 typedef cairo_t mbe_t;
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78 typedef float co_aix;
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79
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80 extern mbe_font_face_t * mbe_query_font_face(const char *family,
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81 int slant, int weight);
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82 extern void mbe_free_font_face(mbe_font_face_t *face);
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83
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84 static mbe_surface_t *
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85 mbe_image_surface_create_for_data(unsigned char *data,
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86 mb_img_fmt_t fmt,
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87 int width, int height,
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88 int stride) {
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89 cairo_format_t _fmt;
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90
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91 switch(fmt) {
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92 case MB_IFMT_ARGB32:
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93 _fmt = CAIRO_FORMAT_ARGB32;
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94 break;
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95 case MB_IFMT_RGB24:
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96 _fmt = CAIRO_FORMAT_RGB24;
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97 break;
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98 case MB_IFMT_A8:
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99 _fmt = CAIRO_FORMAT_A8;
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100 break;
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101 case MB_IFMT_A1:
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102 _fmt = CAIRO_FORMAT_A1;
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103 break;
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104 default:
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105 return NULL;
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106 }
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107 return cairo_image_surface_create_for_data(data, _fmt,
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108 width, height, stride);
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109 }
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110
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111 static mb_img_fmt_t
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112 mbe_image_surface_get_format(mbe_surface_t *surface) {
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113 cairo_format_t _fmt;
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114 mb_img_fmt_t fmt;
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115
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116 _fmt = cairo_image_surface_get_format(surface);
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117 switch(_fmt) {
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118 case CAIRO_FORMAT_ARGB32:
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119 fmt = MB_IFMT_ARGB32;
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120 break;
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121 case CAIRO_FORMAT_RGB24:
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122 fmt = MB_IFMT_RGB24;
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123 break;
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124 case CAIRO_FORMAT_A8:
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125 fmt = MB_IFMT_A8;
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126 break;
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127 case CAIRO_FORMAT_A1:
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128 fmt = MB_IFMT_A1;
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129 break;
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130 default:
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131 fmt = MB_IFMT_DUMMY;
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132 break;
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133 }
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134
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135 return fmt;
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136 }
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137
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138 static mbe_surface_t *
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139 mbe_image_surface_create(mb_img_fmt_t fmt, int width, int height) {
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140 cairo_format_t _fmt;
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141
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142 switch(fmt) {
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143 case MB_IFMT_ARGB32:
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144 _fmt = CAIRO_FORMAT_ARGB32;
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145 break;
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146 case MB_IFMT_RGB24:
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147 _fmt = CAIRO_FORMAT_RGB24;
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148 break;
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149 case MB_IFMT_A8:
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Thinker K.F. Li <thinker@branda.to>
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150 _fmt = CAIRO_FORMAT_A8;
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151 break;
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Thinker K.F. Li <thinker@branda.to>
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152 case MB_IFMT_A1:
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153 _fmt = CAIRO_FORMAT_A1;
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154 break;
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Thinker K.F. Li <thinker@branda.to>
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155 default:
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Thinker K.F. Li <thinker@branda.to>
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156 return NULL;
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157 }
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158
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159 return cairo_image_surface_create(_fmt, width, height);
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160 }
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161
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162 static void
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Thinker K.F. Li <thinker@branda.to>
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163 mbe_transform(mbe_t *mbe, const co_aix matrix[6]) {
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164 cairo_matrix_t cmtx;
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165
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166 cmtx.xx = matrix[0];
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Thinker K.F. Li <thinker@branda.to>
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167 cmtx.xy = matrix[1];
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Thinker K.F. Li <thinker@branda.to>
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168 cmtx.x0 = matrix[2];
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Thinker K.F. Li <thinker@branda.to>
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169 cmtx.yx = matrix[3];
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Thinker K.F. Li <thinker@branda.to>
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170 cmtx.yy = matrix[4];
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Thinker K.F. Li <thinker@branda.to>
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171 cmtx.y0 = matrix[5];
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172
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173 cairo_transform(mbe, &cmtx);
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Thinker K.F. Li <thinker@branda.to>
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174 }
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Thinker K.F. Li <thinker@branda.to>
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175
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176 static void
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Thinker K.F. Li <thinker@branda.to>
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177 mbe_arc(mbe_t *mbe, co_aix x, co_aix y, co_aix radius,
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178 co_aix angle_start, co_aix angle_stop) {
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Thinker K.F. Li <thinker@branda.to>
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179 if(angle_start <= angle_stop)
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180 cairo_arc(mbe, x, y, radius, angle_start, angle_stop);
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Thinker K.F. Li <thinker@branda.to>
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181 else
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Thinker K.F. Li <thinker@branda.to>
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182 cairo_arc_negative(mbe, x, y, radius, angle_start, angle_stop);
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183 }
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Thinker K.F. Li <thinker@branda.to>
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184 /* @} */
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185
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Thinker K.F. Li <thinker@branda.to>
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186 #endif /* __MB_GE_SKIA_H_ */