annotate include/mb_graph_engine_cairo.h @ 528:d687d3395264 Android_Skia

Clear variables and draw root coord. Although root coord is never in zeroing list, now, it still need to be redrawed after redrawing other zeroed coords.
author Thinker K.F. Li <thinker@branda.to>
date Wed, 23 Dec 2009 10:33:51 +0800
parents d186d1e24458
children b42d69ab8857 6f71f1b8e4e7
rev   line source
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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_basic_types.h"
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8 #include "mb_img_ldr.h"
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9
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10 /*! \defgroup mb_ge_cairo MadButterfly Graphic Engine with Cairo
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11 * @{
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12 */
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13 #define MBE_OPERATOR_CLEAR CAIRO_OPERATOR_CLEAR
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14 #define MBE_OPERATOR_SOURCE CAIRO_OPERATOR_SOURCE
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15 #define MBE_STATUS_SUCCESS CAIRO_STATUS_SUCCESS
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16
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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_create_for_surface cairo_pattern_create_for_surface
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19 #define mbe_scaled_font_text_extents cairo_scaled_font_text_extents
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20 #define mbe_image_surface_get_stride cairo_image_surface_get_stride
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21 #define mbe_image_surface_get_height cairo_image_surface_get_height
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22 #define mbe_image_surface_get_width cairo_image_surface_get_width
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23 #define mbe_image_surface_get_data cairo_image_surface_get_data
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24 #define mbe_scaled_font_reference cairo_scaled_font_reference
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25 #define mbe_xlib_surface_create cairo_xlib_surface_create
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26 #define mbe_scaled_font_destroy cairo_scaled_font_destroy
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27 #define mbe_font_face_reference cairo_font_face_reference
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28 #define mbe_font_face_destroy cairo_font_face_destroy
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29 #define mbe_paint_with_alpha cairo_paint_with_alpha
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30 #define mbe_surface_destroy cairo_surface_destroy
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31 #define mbe_set_source_rgba cairo_set_source_rgba
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32 #define mbe_set_scaled_font cairo_set_scaled_font
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33 #define mbe_pattern_destroy cairo_pattern_destroy
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34 #define mbe_get_scaled_font cairo_get_scaled_font
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35 #define mbe_set_source_rgb cairo_set_source_rgb
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36 #define mbe_set_line_width cairo_set_line_width
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37 #define mbe_get_font_face cairo_get_font_face
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38 #define mbe_fill_preserve cairo_fill_preserve
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39 #define mbe_set_source cairo_set_source
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40 #define mbe_reset_clip cairo_reset_clip
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41 #define mbe_get_target cairo_get_target
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42 #define mbe_close_path cairo_close_path
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43 #define mbe_text_path cairo_text_path
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44 #define mbe_rectangle cairo_rectangle
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45 #define mbe_in_stroke cairo_in_stroke
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46 #define mbe_new_path cairo_new_path
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47 #define mbe_curve_to cairo_curve_to
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48 #define mbe_restore cairo_restore
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49 #define mbe_move_to cairo_move_to
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50 #define mbe_line_to cairo_line_to
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51 #define mbe_in_fill cairo_in_fill
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52 #define mbe_destroy cairo_destroy
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53 #define mbe_stroke cairo_stroke
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54 #define mbe_create cairo_create
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55 #define mbe_paint cairo_paint
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56 #define mbe_save cairo_save
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57 #define mbe_fill cairo_fill
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58 #define mbe_clip cairo_clip
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59
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60 typedef cairo_text_extents_t mbe_text_extents_t;
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61 typedef cairo_scaled_font_t mbe_scaled_font_t;
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62 typedef cairo_font_face_t mbe_font_face_t;
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63 typedef cairo_surface_t mbe_surface_t;
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64 typedef cairo_pattern_t mbe_pattern_t;
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65 typedef cairo_t mbe_t;
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66
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67 #define MB_MATRIX_2_CAIRO(cmtx, mtx) { \
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68 (cmtx).xx = (mtx)[0]; \
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69 (cmtx).xy = (mtx)[1]; \
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70 (cmtx).x0 = (mtx)[2]; \
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71 (cmtx).yx = (mtx)[3]; \
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72 (cmtx).yy = (mtx)[4]; \
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73 (cmtx).y0 = (mtx)[5]; \
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74 }
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75
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76
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77 extern mbe_font_face_t * mbe_query_font_face(const char *family,
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78 int slant, int weight);
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79 extern void mbe_free_font_face(mbe_font_face_t *face);
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80 extern mbe_pattern_t *mbe_pattern_create_radial(co_aix cx0, co_aix cy0,
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81 co_aix radius0,
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82 co_aix cx1, co_aix cy1,
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83 co_aix radius1,
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84 grad_stop_t *stops,
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85 int stop_cnt);
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86 extern mbe_pattern_t *mbe_pattern_create_linear(co_aix x0, co_aix y0,
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87 co_aix x1, co_aix y1,
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88 grad_stop_t *stops,
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89 int stop_cnt);
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90
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91
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92 static void mbe_pattern_set_matrix(mbe_pattern_t *ptn,
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93 const co_aix matrix[6]) {
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94 cairo_matrix_t cmtx;
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95
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96 MB_MATRIX_2_CAIRO(cmtx, matrix);
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97 cairo_pattern_set_matrix(ptn, &cmtx);
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98 }
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99
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100 static void mbe_clear(mbe_t *canvas) {
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101 cairo_operator_t old_op;
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102
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103 old_op = cairo_get_operator(canvas);
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104 cairo_set_operator(canvas, CAIRO_OPERATOR_CLEAR);
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105 cairo_paint(canvas);
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106 cairo_set_operator(canvas, old_op);
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107 }
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108
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109 static void mbe_copy_source(mbe_t *src, mbe_t *dst) {
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110 cairo_operator_t saved_op;
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111 cairo_surface_t *surf;
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112 cairo_pattern_t *ptn;
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113
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114 surf = cairo_get_target(src);
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115 ptn = cairo_pattern_create_for_surface(surf);
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116 cairo_set_source(src, ptn);
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117 cairo_pattern_destroy(ptn);
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118 saved_op = cairo_get_operator(dst);
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119 cairo_set_operator(dst, CAIRO_OPERATOR_SOURCE);
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120 cairo_paint(dst);
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121 cairo_set_operator(dst, saved_op);
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122 }
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123
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124 static mbe_scaled_font_t *
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125 mbe_scaled_font_create(mbe_font_face_t *face, co_aix fnt_mtx[6],
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126 co_aix ctm[6]) {
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127 cairo_font_options_t *options;
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128 mbe_scaled_font_t *scaled;
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129 cairo_matrix_t cfnt_mtx, cctm;
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130
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131 options = cairo_font_options_create();
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132 if(options == NULL)
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133 return NULL;
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134
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135 MB_MATRIX_2_CAIRO(cfnt_mtx, fnt_mtx);
ba64f928542b Remove mbe_matrix_t type.
Thinker K.F. Li <thinker@branda.to>
parents: 471
diff changeset
136 MB_MATRIX_2_CAIRO(cctm, ctm);
ba64f928542b Remove mbe_matrix_t type.
Thinker K.F. Li <thinker@branda.to>
parents: 471
diff changeset
137 scaled = cairo_scaled_font_create(face, &cfnt_mtx, &cctm, options);
465
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
138
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
139 cairo_font_options_destroy(options);
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
140
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
141 return scaled;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
142 }
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
143
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
144 static mbe_surface_t *
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
145 mbe_image_surface_create_for_data(unsigned char *data,
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
146 mb_img_fmt_t fmt,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
147 int width, int height,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
148 int stride) {
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
149 cairo_format_t _fmt;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
150
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
151 switch(fmt) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
152 case MB_IFMT_ARGB32:
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Thinker K.F. Li <thinker@branda.to>
parents:
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153 _fmt = CAIRO_FORMAT_ARGB32;
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Thinker K.F. Li <thinker@branda.to>
parents:
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154 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
155 case MB_IFMT_RGB24:
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Thinker K.F. Li <thinker@branda.to>
parents:
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156 _fmt = CAIRO_FORMAT_RGB24;
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Thinker K.F. Li <thinker@branda.to>
parents:
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157 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
158 case MB_IFMT_A8:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
159 _fmt = CAIRO_FORMAT_A8;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
160 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
161 case MB_IFMT_A1:
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Thinker K.F. Li <thinker@branda.to>
parents:
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162 _fmt = CAIRO_FORMAT_A1;
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Thinker K.F. Li <thinker@branda.to>
parents:
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163 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
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164 default:
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Thinker K.F. Li <thinker@branda.to>
parents:
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165 return NULL;
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Thinker K.F. Li <thinker@branda.to>
parents:
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166 }
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
167 return cairo_image_surface_create_for_data(data, _fmt,
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Thinker K.F. Li <thinker@branda.to>
parents:
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168 width, height, stride);
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
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169 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
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170
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
171 static mb_img_fmt_t
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Thinker K.F. Li <thinker@branda.to>
parents:
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172 mbe_image_surface_get_format(mbe_surface_t *surface) {
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Thinker K.F. Li <thinker@branda.to>
parents:
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173 cairo_format_t _fmt;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
174 mb_img_fmt_t fmt;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
175
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
176 _fmt = cairo_image_surface_get_format(surface);
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
177 switch(_fmt) {
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
178 case CAIRO_FORMAT_ARGB32:
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Thinker K.F. Li <thinker@branda.to>
parents:
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179 fmt = MB_IFMT_ARGB32;
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Thinker K.F. Li <thinker@branda.to>
parents:
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180 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
181 case CAIRO_FORMAT_RGB24:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
182 fmt = MB_IFMT_RGB24;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
183 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
184 case CAIRO_FORMAT_A8:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
185 fmt = MB_IFMT_A8;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
186 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
187 case CAIRO_FORMAT_A1:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
188 fmt = MB_IFMT_A1;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
189 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
190 default:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
191 fmt = MB_IFMT_DUMMY;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
192 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
193 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
194
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
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195 return fmt;
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Thinker K.F. Li <thinker@branda.to>
parents:
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196 }
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
197
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
198 static mbe_surface_t *
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
199 mbe_image_surface_create(mb_img_fmt_t fmt, int width, int height) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
200 cairo_format_t _fmt;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
201
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
202 switch(fmt) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
203 case MB_IFMT_ARGB32:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
204 _fmt = CAIRO_FORMAT_ARGB32;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
205 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
206 case MB_IFMT_RGB24:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
207 _fmt = CAIRO_FORMAT_RGB24;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
208 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
209 case MB_IFMT_A8:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
210 _fmt = CAIRO_FORMAT_A8;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
211 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
212 case MB_IFMT_A1:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
213 _fmt = CAIRO_FORMAT_A1;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
214 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
215 default:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
216 return NULL;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
217 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
218
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
219 return cairo_image_surface_create(_fmt, width, height);
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
220 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
221
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
222 static void
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
223 mbe_transform(mbe_t *mbe, const co_aix matrix[6]) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
224 cairo_matrix_t cmtx;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
225
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
226 cmtx.xx = matrix[0];
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
227 cmtx.xy = matrix[1];
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
228 cmtx.x0 = matrix[2];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
229 cmtx.yx = matrix[3];
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
230 cmtx.yy = matrix[4];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
231 cmtx.y0 = matrix[5];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
232
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
233 cairo_transform(mbe, &cmtx);
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
234 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
235
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
236 static void
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
237 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
238 co_aix angle_start, co_aix angle_stop) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
239 if(angle_start <= angle_stop)
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
240 cairo_arc(mbe, x, y, radius, angle_start, angle_stop);
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
241 else
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
242 cairo_arc_negative(mbe, x, y, radius, angle_start, angle_stop);
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
243 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
244 /* @} */
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
245
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
246 #endif /* __MB_GE_CAIRO_H_ */