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annotate include/mb_graph_engine_cairo.h @ 481:273307d061b7 Android_Skia

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imported patch typo_cairo.diff
author Thinker K.F. Li <thinker@branda.to>
date Sun, 15 Nov 2009 16:21:09 +0800
parents e813ac222f48
children d186d1e24458
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
469
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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 *canvas) {
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110 cairo_operator_t saved_op;
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111
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112 saved_op = cairo_get_operator(canvas);
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113 cairo_set_operator(canvas, CAIRO_OPERATOR_SOURCE);
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114 cairo_paint(canvas);
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115 cairo_set_operator(canvas, saved_op);
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116 }
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117
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118 static mbe_scaled_font_t *
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119 mbe_scaled_font_create(mbe_font_face_t *face, co_aix fnt_mtx[6],
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120 co_aix ctm[6]) {
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121 cairo_font_options_t *options;
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122 mbe_scaled_font_t *scaled;
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123 cairo_matrix_t cfnt_mtx, cctm;
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124
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125 options = cairo_font_options_create();
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126 if(options == NULL)
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127 return NULL;
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128
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129 MB_MATRIX_2_CAIRO(cfnt_mtx, fnt_mtx);
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130 MB_MATRIX_2_CAIRO(cctm, ctm);
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131 scaled = cairo_scaled_font_create(face, &cfnt_mtx, &cctm, options);
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132
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133 cairo_font_options_destroy(options);
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134
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135 return scaled;
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136 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
137
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
138 static mbe_surface_t *
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
139 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
140 mb_img_fmt_t fmt,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
141 int width, int height,
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
142 int stride) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
143 cairo_format_t _fmt;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
144
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
145 switch(fmt) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
146 case MB_IFMT_ARGB32:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
147 _fmt = CAIRO_FORMAT_ARGB32;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
148 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
149 case MB_IFMT_RGB24:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
150 _fmt = CAIRO_FORMAT_RGB24;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
151 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
152 case MB_IFMT_A8:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
153 _fmt = CAIRO_FORMAT_A8;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
154 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
155 case MB_IFMT_A1:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
156 _fmt = CAIRO_FORMAT_A1;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
157 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
158 default:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
159 return NULL;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
160 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
161 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
162 width, height, stride);
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
163 }
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 static mb_img_fmt_t
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
166 mbe_image_surface_get_format(mbe_surface_t *surface) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
167 cairo_format_t _fmt;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
168 mb_img_fmt_t fmt;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
169
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
170 _fmt = cairo_image_surface_get_format(surface);
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
171 switch(_fmt) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
172 case CAIRO_FORMAT_ARGB32:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
173 fmt = MB_IFMT_ARGB32;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
174 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
175 case CAIRO_FORMAT_RGB24:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
176 fmt = MB_IFMT_RGB24;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
177 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
178 case CAIRO_FORMAT_A8:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
179 fmt = MB_IFMT_A8;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
180 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
181 case CAIRO_FORMAT_A1:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
182 fmt = MB_IFMT_A1;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
183 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
184 default:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
185 fmt = MB_IFMT_DUMMY;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
186 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
187 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
188
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
189 return fmt;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
190 }
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 static mbe_surface_t *
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
193 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
194 cairo_format_t _fmt;
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 switch(fmt) {
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
197 case MB_IFMT_ARGB32:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
198 _fmt = CAIRO_FORMAT_ARGB32;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
199 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
200 case MB_IFMT_RGB24:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
201 _fmt = CAIRO_FORMAT_RGB24;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
202 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
203 case MB_IFMT_A8:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
204 _fmt = CAIRO_FORMAT_A8;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
205 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
206 case MB_IFMT_A1:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
207 _fmt = CAIRO_FORMAT_A1;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
208 break;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
209 default:
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
210 return NULL;
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
211 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
212
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
213 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
214 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
215
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
216 static void
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
217 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
218 cairo_matrix_t cmtx;
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 cmtx.xx = matrix[0];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
221 cmtx.xy = matrix[1];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
222 cmtx.x0 = matrix[2];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
223 cmtx.yx = matrix[3];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
224 cmtx.yy = matrix[4];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
225 cmtx.y0 = matrix[5];
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
226
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
227 cairo_transform(mbe, &cmtx);
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
228 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
229
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
230 static void
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
231 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
232 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
233 if(angle_start <= angle_stop)
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
234 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
235 else
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
236 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
237 }
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
238 /* @} */
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
239
d8181696b689 Move functions into graphic engine layers.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
240 #endif /* __MB_GE_CAIRO_H_ */