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annotate include/mb_graph_engine_cairo.h @ 1171:16ea7b81eda8

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author wycc
date Thu, 30 Dec 2010 11:32:33 +0800
parents 673978a8bc4b
children
rev   line source
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586e50f82c1f Unify coding style tag for emacs and vim.
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1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
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2 // vim: sw=4:ts=8:sts=4
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3 #ifndef __MB_GE_CAIRO_H_
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4 #define __MB_GE_CAIRO_H_
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5
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6 #include <stdio.h>
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7 #include <cairo.h>
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8 #include "mb_basic_types.h"
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9 #include "mb_img_ldr.h"
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10
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11 /*! \defgroup mb_ge_cairo MadButterfly Graphic Engine with Cairo
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12 * @{
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13 */
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14 #define MBE_OPERATOR_CLEAR CAIRO_OPERATOR_CLEAR
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15 #define MBE_OPERATOR_SOURCE CAIRO_OPERATOR_SOURCE
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16 #define MBE_STATUS_SUCCESS CAIRO_STATUS_SUCCESS
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17
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18 /* This function is only used by img_ldr.c */
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19 #define mbe_image_surface_create_from_png cairo_image_surface_create_from_png
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20
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21 #define mbe_pattern_create_for_surface cairo_pattern_create_for_surface
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22 #define mbe_scaled_font_text_extents cairo_scaled_font_text_extents
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23 #define mbe_image_surface_get_stride cairo_image_surface_get_stride
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24 #define mbe_image_surface_get_height cairo_image_surface_get_height
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25 #define mbe_directfb_surface_create cairo_directfb_surface_create
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26 #define mbe_image_surface_get_width cairo_image_surface_get_width
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27 #define mbe_image_surface_get_data cairo_image_surface_get_data
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28 #define mbe_scaled_font_reference cairo_scaled_font_reference
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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_font_face_destroy cairo_font_face_destroy
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32 #define mbe_paint_with_alpha cairo_paint_with_alpha
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33 #define mbe_surface_destroy cairo_surface_destroy
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34 #define mbe_set_source_rgba cairo_set_source_rgba
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35 #define mbe_set_scaled_font cairo_set_scaled_font
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36 #define mbe_pattern_destroy cairo_pattern_destroy
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37 #define mbe_get_scaled_font cairo_get_scaled_font
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38 #define mbe_set_source_rgb cairo_set_source_rgb
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39 #define mbe_set_line_width cairo_set_line_width
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40 #define mbe_get_font_face cairo_get_font_face
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41 #define mbe_fill_preserve cairo_fill_preserve
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42 #define mbe_set_source cairo_set_source
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43 #define mbe_reset_scissoring cairo_reset_clip
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44 #define mbe_get_target cairo_get_target
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45 #define mbe_close_path cairo_close_path
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46 #define mbe_text_path cairo_text_path
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47 #define mbe_rectangle cairo_rectangle
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48 #define mbe_in_stroke cairo_in_stroke
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49 #define mbe_new_path cairo_new_path
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50 #define mbe_curve_to cairo_curve_to
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51 #define mbe_restore cairo_restore
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52 #define mbe_move_to cairo_move_to
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53 #define mbe_line_to cairo_line_to
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54 #define mbe_in_fill cairo_in_fill
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55 #define mbe_destroy cairo_destroy
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56 #define mbe_stroke cairo_stroke
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57 #define mbe_create cairo_create
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58 #define mbe_paint cairo_paint
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59 #define mbe_flush(canvas)
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60 #define mbe_save cairo_save
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61 #define mbe_fill cairo_fill
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62 #define mbe_init()
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63
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64 typedef cairo_text_extents_t mbe_text_extents_t;
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65 typedef cairo_scaled_font_t mbe_scaled_font_t;
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66 typedef cairo_font_face_t mbe_font_face_t;
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67 typedef cairo_surface_t mbe_surface_t;
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68 typedef cairo_pattern_t mbe_pattern_t;
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69 typedef cairo_t mbe_t;
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70
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71 #define MB_MATRIX_2_CAIRO(cmtx, mtx) { \
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72 (cmtx).xx = (mtx)[0]; \
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73 (cmtx).xy = (mtx)[1]; \
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74 (cmtx).x0 = (mtx)[2]; \
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75 (cmtx).yx = (mtx)[3]; \
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76 (cmtx).yy = (mtx)[4]; \
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77 (cmtx).y0 = (mtx)[5]; \
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78 }
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79
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80
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81 extern mbe_surface_t *mbe_win_surface_create(void *display,
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82 void *drawable,
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83 int fmt,
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84 int width,
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85 int height);
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86
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87 extern mbe_font_face_t * mbe_query_font_face(const char *family,
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88 int slant, int weight);
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89 extern void mbe_free_font_face(mbe_font_face_t *face);
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90 extern mbe_pattern_t *mbe_pattern_create_radial(co_aix cx0, co_aix cy0,
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91 co_aix radius0,
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92 co_aix cx1, co_aix cy1,
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93 co_aix radius1,
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94 grad_stop_t *stops,
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95 int stop_cnt);
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96 extern mbe_pattern_t *mbe_pattern_create_linear(co_aix x0, co_aix y0,
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97 co_aix x1, co_aix y1,
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98 grad_stop_t *stops,
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99 int stop_cnt);
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100 extern mbe_pattern_t *mbe_pattern_create_image(mb_img_data_t *img);
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101 extern void mbe_scissoring(mbe_t *canvas, int n_areas, area_t **areas);
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102 extern void mbe_copy_source(mbe_t *src, mbe_t *dst);
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103
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104
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105 static void mbe_pattern_set_matrix(mbe_pattern_t *ptn,
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106 const co_aix matrix[6]) {
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107 cairo_matrix_t cmtx;
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108
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109 MB_MATRIX_2_CAIRO(cmtx, matrix);
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110 cairo_pattern_set_matrix(ptn, &cmtx);
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111 }
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112
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113 static void mbe_clear(mbe_t *canvas) {
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114 cairo_operator_t old_op;
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115
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116 old_op = cairo_get_operator(canvas);
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117 cairo_set_operator(canvas, CAIRO_OPERATOR_CLEAR);
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118 cairo_paint(canvas);
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119 cairo_set_operator(canvas, old_op);
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120 }
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121
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122 static mbe_scaled_font_t *
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123 mbe_scaled_font_create(mbe_font_face_t *face, co_aix fnt_mtx[6],
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124 co_aix ctm[6]) {
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125 cairo_font_options_t *options;
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126 mbe_scaled_font_t *scaled;
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127 cairo_matrix_t cfnt_mtx, cctm;
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128
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129 options = cairo_font_options_create();
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130 if(options == NULL)
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131 return NULL;
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132
473
ba64f928542b Remove mbe_matrix_t type.
Thinker K.F. Li <thinker@branda.to>
parents: 471
diff changeset
133 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
134 MB_MATRIX_2_CAIRO(cctm, ctm);
ba64f928542b Remove mbe_matrix_t type.
Thinker K.F. Li <thinker@branda.to>
parents: 471
diff changeset
135 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
136
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
137 cairo_font_options_destroy(options);
633
6f71f1b8e4e7 Let compilation on SMP8655 succeeded.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 512
diff changeset
138
465
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
139 return scaled;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
140 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
141
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
142 static mbe_surface_t *
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
143 mbe_image_surface_create_for_data(unsigned char *data,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
144 mb_img_fmt_t fmt,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
145 int width, int height,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
146 int stride) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
147 cairo_format_t _fmt;
633
6f71f1b8e4e7 Let compilation on SMP8655 succeeded.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 512
diff changeset
148
465
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
149 switch(fmt) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
150 case MB_IFMT_ARGB32:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
151 _fmt = CAIRO_FORMAT_ARGB32;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
152 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
153 case MB_IFMT_RGB24:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
154 _fmt = CAIRO_FORMAT_RGB24;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
155 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
156 case MB_IFMT_A8:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
157 _fmt = CAIRO_FORMAT_A8;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
158 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
159 case MB_IFMT_A1:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
160 _fmt = CAIRO_FORMAT_A1;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
161 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
162 default:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
163 return NULL;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
164 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
165 return cairo_image_surface_create_for_data(data, _fmt,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
166 width, height, stride);
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
167 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
168
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
169 static mb_img_fmt_t
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
170 mbe_image_surface_get_format(mbe_surface_t *surface) {
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
171 cairo_format_t _fmt;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
172 mb_img_fmt_t fmt;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
173
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
174 _fmt = cairo_image_surface_get_format(surface);
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
175 switch(_fmt) {
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
176 case CAIRO_FORMAT_ARGB32:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
177 fmt = MB_IFMT_ARGB32;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
178 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
179 case CAIRO_FORMAT_RGB24:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
180 fmt = MB_IFMT_RGB24;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
181 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
182 case CAIRO_FORMAT_A8:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
183 fmt = MB_IFMT_A8;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
184 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
185 case CAIRO_FORMAT_A1:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
186 fmt = MB_IFMT_A1;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
187 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
188 default:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
189 fmt = MB_IFMT_DUMMY;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
190 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
191 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
192
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
193 return fmt;
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:
diff changeset
195
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
196 static mbe_surface_t *
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
197 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
198 cairo_format_t _fmt;
633
6f71f1b8e4e7 Let compilation on SMP8655 succeeded.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 512
diff changeset
199
465
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
200 switch(fmt) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
201 case MB_IFMT_ARGB32:
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
202 _fmt = CAIRO_FORMAT_ARGB32;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
203 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
204 case MB_IFMT_RGB24:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
205 _fmt = CAIRO_FORMAT_RGB24;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
206 break;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
207 case MB_IFMT_A8:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
208 _fmt = CAIRO_FORMAT_A8;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
209 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
210 case MB_IFMT_A1:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
211 _fmt = CAIRO_FORMAT_A1;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
212 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
213 default:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
214 return NULL;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
215 }
633
6f71f1b8e4e7 Let compilation on SMP8655 succeeded.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 512
diff changeset
216
465
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
217 return cairo_image_surface_create(_fmt, width, height);
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
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
220 static void
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
221 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
222 cairo_matrix_t cmtx;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
223
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
224 cmtx.xx = matrix[0];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
225 cmtx.xy = matrix[1];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
226 cmtx.x0 = matrix[2];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
227 cmtx.yx = matrix[3];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
228 cmtx.yy = matrix[4];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
229 cmtx.y0 = matrix[5];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
230
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
231 cairo_transform(mbe, &cmtx);
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
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
234 static void
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
235 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
236 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
237 if(angle_start <= angle_stop)
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
238 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
239 else
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
240 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
241 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
242 /* @} */
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 #endif /* __MB_GE_CAIRO_H_ */