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annotate include/mb_graph_engine_cairo.h @ 467:6e18550c8fa8 Android_Skia

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Header file to config graphic engine
author Thinker K.F. Li <thinker@branda.to>
date Thu, 12 Nov 2009 21:24:35 +0800
parents d8181696b689
children 4dc0be6c044a
rev   line source
465
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1 #ifndef __MB_GE_CAIRO_H_
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2 #define __MB_GE_CAIRO_H_
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3
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4 #include <stdio.h>
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5 #include <cairo.h>
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6 #include <cairo-xlib.h>
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7 #include "mb_img_ldr.h"
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8
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9 /*! \defgroup mb_ge_cairo MadButterfly Graphic Engine with Cairo
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10 * @{
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11 */
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12 #define MBE_OPERATOR_CLEAR CAIRO_OPERATOR_CLEAR
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13 #define MBE_OPERATOR_SOURCE CAIRO_OPERATOR_SOURCE
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14 #define MBE_STATUS_SUCCESS CAIRO_STATUS_SUCCESS
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15
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16 #define mbe_ft_font_face_create_for_pattern cairo_ft_font_face_create_for_pattern
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17 #define mbe_image_surface_create_from_png cairo_image_surface_create_from_png
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18 #define mbe_pattern_add_color_stop_rgba cairo_pattern_add_color_stop_rgba
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19 #define mbe_pattern_create_for_surface cairo_pattern_create_for_surface
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20 #define mbe_scaled_font_text_extents cairo_scaled_font_text_extents
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21 #define mbe_image_surface_get_stride cairo_image_surface_get_stride
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22 #define mbe_image_surface_get_height cairo_image_surface_get_height
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23 #define mbe_image_surface_get_width cairo_image_surface_get_width
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24 #define mbe_image_surface_get_data cairo_image_surface_get_data
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25 #define mbe_scaled_font_reference cairo_scaled_font_reference
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26 #define mbe_pattern_create_radial cairo_pattern_create_radial
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27 #define mbe_pattern_create_linear cairo_pattern_create_linear
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28 #define mbe_xlib_surface_create cairo_xlib_surface_create
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29 #define mbe_scaled_font_destroy cairo_scaled_font_destroy
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30 #define mbe_font_face_reference cairo_font_face_reference
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31 #define mbe_set_source_surface cairo_set_source_surface
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32 #define mbe_scaled_font_status cairo_scaled_font_status
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33 #define mbe_pattern_set_matrix cairo_pattern_set_matrix
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34 #define mbe_font_face_destroy cairo_font_face_destroy
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35 #define mbe_paint_with_alpha cairo_paint_with_alpha
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36 #define mbe_font_face_status cairo_font_face_status
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37 #define mbe_surface_destroy cairo_surface_destroy
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38 #define mbe_set_source_rgba cairo_set_source_rgba
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39 #define mbe_set_scaled_font cairo_set_scaled_font
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40 #define mbe_pattern_destroy cairo_pattern_destroy
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41 #define mbe_get_scaled_font cairo_get_scaled_font
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42 #define mbe_set_source_rgb cairo_set_source_rgb
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43 #define mbe_set_line_width cairo_set_line_width
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44 #define mbe_get_font_face cairo_get_font_face
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45 #define mbe_fill_preserve cairo_fill_preserve
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46 #define mbe_set_operator cairo_set_operator
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47 #define mbe_get_operator cairo_get_operator
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48 #define mbe_set_source cairo_set_source
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49 #define mbe_reset_clip cairo_reset_clip
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50 #define mbe_get_target cairo_get_target
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51 #define mbe_close_path cairo_close_path
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52 #define mbe_text_path cairo_text_path
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53 #define mbe_show_text cairo_show_text
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54 #define mbe_rectangle cairo_rectangle
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55 #define mbe_in_stroke cairo_in_stroke
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56 #define mbe_new_path cairo_new_path
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57 #define mbe_curve_to cairo_curve_to
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58 #define mbe_restore cairo_restore
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59 #define mbe_move_to cairo_move_to
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60 #define mbe_line_to cairo_line_to
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61 #define mbe_in_fill cairo_in_fill
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62 #define mbe_destroy cairo_destroy
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63 #define mbe_stroke cairo_stroke
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64 #define mbe_create cairo_create
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65 #define mbe_paint cairo_paint
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66 #define mbe_save cairo_save
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67 #define mbe_fill cairo_fill
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68 #define mbe_clip cairo_clip
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69
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70 typedef cairo_text_extents_t mbe_text_extents_t;
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71 typedef cairo_scaled_font_t mbe_scaled_font_t;
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72 typedef cairo_font_face_t mbe_font_face_t;
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73 typedef cairo_operator_t mbe_operator_t;
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74 typedef cairo_surface_t mbe_surface_t;
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75 typedef cairo_pattern_t mbe_pattern_t;
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76 typedef cairo_status_t mbe_status_t;
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77 typedef cairo_matrix_t mbe_matrix_t;
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78 typedef cairo_t mbe_t;
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79 typedef float co_aix;
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80
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81
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82 extern mbe_font_face_t * mbe_query_font_face(const char *family,
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83 int slant, int weight);
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84 extern void mbe_free_font_face(mbe_font_face_t *face);
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85
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86
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87 static mbe_scaled_font_t *
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88 mbe_scaled_font_create(mbe_font_face_t *face, mbe_matrix_t *fnt_mtx,
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89 mbe_matrix_t *ctm) {
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90 cairo_font_options_t *options;
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91 mbe_scaled_font_t *scaled;
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92
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93 options = cairo_font_options_create();
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94 if(options == NULL)
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95 return NULL;
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96
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97 scaled = cairo_scaled_font_create(face, fnt_mtx, ctm, options);
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98
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99 cairo_font_options_destroy(options);
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100
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101 return scaled;
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102 }
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103
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104 static mbe_surface_t *
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105 mbe_image_surface_create_for_data(unsigned char *data,
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106 mb_img_fmt_t fmt,
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107 int width, int height,
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108 int stride) {
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109 cairo_format_t _fmt;
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110
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111 switch(fmt) {
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112 case MB_IFMT_ARGB32:
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113 _fmt = CAIRO_FORMAT_ARGB32;
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114 break;
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115 case MB_IFMT_RGB24:
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116 _fmt = CAIRO_FORMAT_RGB24;
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117 break;
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118 case MB_IFMT_A8:
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119 _fmt = CAIRO_FORMAT_A8;
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120 break;
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121 case MB_IFMT_A1:
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122 _fmt = CAIRO_FORMAT_A1;
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123 break;
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124 default:
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125 return NULL;
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126 }
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127 return cairo_image_surface_create_for_data(data, _fmt,
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128 width, height, stride);
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129 }
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130
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131 static mb_img_fmt_t
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132 mbe_image_surface_get_format(mbe_surface_t *surface) {
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133 cairo_format_t _fmt;
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134 mb_img_fmt_t fmt;
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135
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136 _fmt = cairo_image_surface_get_format(surface);
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137 switch(_fmt) {
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138 case CAIRO_FORMAT_ARGB32:
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139 fmt = MB_IFMT_ARGB32;
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140 break;
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141 case CAIRO_FORMAT_RGB24:
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142 fmt = MB_IFMT_RGB24;
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Thinker K.F. Li <thinker@branda.to>
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143 break;
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Thinker K.F. Li <thinker@branda.to>
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144 case CAIRO_FORMAT_A8:
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Thinker K.F. Li <thinker@branda.to>
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145 fmt = MB_IFMT_A8;
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Thinker K.F. Li <thinker@branda.to>
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146 break;
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Thinker K.F. Li <thinker@branda.to>
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147 case CAIRO_FORMAT_A1:
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Thinker K.F. Li <thinker@branda.to>
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148 fmt = MB_IFMT_A1;
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Thinker K.F. Li <thinker@branda.to>
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149 break;
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Thinker K.F. Li <thinker@branda.to>
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150 default:
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Thinker K.F. Li <thinker@branda.to>
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151 fmt = MB_IFMT_DUMMY;
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Thinker K.F. Li <thinker@branda.to>
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152 break;
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Thinker K.F. Li <thinker@branda.to>
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153 }
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Thinker K.F. Li <thinker@branda.to>
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154
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Thinker K.F. Li <thinker@branda.to>
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155 return fmt;
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Thinker K.F. Li <thinker@branda.to>
parents:
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156 }
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Thinker K.F. Li <thinker@branda.to>
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157
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Thinker K.F. Li <thinker@branda.to>
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158 static mbe_surface_t *
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Thinker K.F. Li <thinker@branda.to>
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159 mbe_image_surface_create(mb_img_fmt_t fmt, int width, int height) {
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Thinker K.F. Li <thinker@branda.to>
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160 cairo_format_t _fmt;
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Thinker K.F. Li <thinker@branda.to>
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161
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Thinker K.F. Li <thinker@branda.to>
parents:
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162 switch(fmt) {
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Thinker K.F. Li <thinker@branda.to>
parents:
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163 case MB_IFMT_ARGB32:
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Thinker K.F. Li <thinker@branda.to>
parents:
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164 _fmt = CAIRO_FORMAT_ARGB32;
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Thinker K.F. Li <thinker@branda.to>
parents:
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165 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
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166 case MB_IFMT_RGB24:
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Thinker K.F. Li <thinker@branda.to>
parents:
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167 _fmt = CAIRO_FORMAT_RGB24;
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Thinker K.F. Li <thinker@branda.to>
parents:
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168 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
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169 case MB_IFMT_A8:
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Thinker K.F. Li <thinker@branda.to>
parents:
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170 _fmt = CAIRO_FORMAT_A8;
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Thinker K.F. Li <thinker@branda.to>
parents:
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171 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
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172 case MB_IFMT_A1:
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Thinker K.F. Li <thinker@branda.to>
parents:
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173 _fmt = CAIRO_FORMAT_A1;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
174 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
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175 default:
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Thinker K.F. Li <thinker@branda.to>
parents:
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176 return NULL;
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Thinker K.F. Li <thinker@branda.to>
parents:
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177 }
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Thinker K.F. Li <thinker@branda.to>
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178
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Thinker K.F. Li <thinker@branda.to>
parents:
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179 return cairo_image_surface_create(_fmt, width, height);
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Thinker K.F. Li <thinker@branda.to>
parents:
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180 }
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Thinker K.F. Li <thinker@branda.to>
parents:
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181
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Thinker K.F. Li <thinker@branda.to>
parents:
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182 static void
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Thinker K.F. Li <thinker@branda.to>
parents:
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183 mbe_transform(mbe_t *mbe, const co_aix matrix[6]) {
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
184 cairo_matrix_t cmtx;
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Thinker K.F. Li <thinker@branda.to>
parents:
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185
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Thinker K.F. Li <thinker@branda.to>
parents:
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186 cmtx.xx = matrix[0];
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Thinker K.F. Li <thinker@branda.to>
parents:
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187 cmtx.xy = matrix[1];
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Thinker K.F. Li <thinker@branda.to>
parents:
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188 cmtx.x0 = matrix[2];
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Thinker K.F. Li <thinker@branda.to>
parents:
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189 cmtx.yx = matrix[3];
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Thinker K.F. Li <thinker@branda.to>
parents:
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190 cmtx.yy = matrix[4];
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
191 cmtx.y0 = matrix[5];
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
192
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Thinker K.F. Li <thinker@branda.to>
parents:
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193 cairo_transform(mbe, &cmtx);
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
194 }
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Thinker K.F. Li <thinker@branda.to>
parents:
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195
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
196 static void
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
197 mbe_arc(mbe_t *mbe, co_aix x, co_aix y, co_aix radius,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
198 co_aix angle_start, co_aix angle_stop) {
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
199 if(angle_start <= angle_stop)
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
200 cairo_arc(mbe, x, y, radius, angle_start, angle_stop);
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
201 else
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
202 cairo_arc_negative(mbe, x, y, radius, angle_start, angle_stop);
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
203 }
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Thinker K.F. Li <thinker@branda.to>
parents:
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204 /* @} */
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Thinker K.F. Li <thinker@branda.to>
parents:
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205
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Thinker K.F. Li <thinker@branda.to>
parents:
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206 #endif /* __MB_GE_CAIRO_H_ */