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comparison include/mb_graph_engine_cairo.h @ 465:d8181696b689 Android_Skia

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Move functions into graphic engine layers. Cairo and Skia have their own header files and C/C++ files. Some functions are refactoried and move into graphic engine layer to make reset of MadButterfly independently from graphic engines.
author Thinker K.F. Li <thinker@branda.to>
date Thu, 12 Nov 2009 21:22:30 +0800
parents
children 4dc0be6c044a
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464:271212f325b4 465:d8181696b689
1 #ifndef __MB_GE_CAIRO_H_
2 #define __MB_GE_CAIRO_H_
3
4 #include <stdio.h>
5 #include <cairo.h>
6 #include <cairo-xlib.h>
7 #include "mb_img_ldr.h"
8
9 /*! \defgroup mb_ge_cairo MadButterfly Graphic Engine with Cairo
10 * @{
11 */
12 #define MBE_OPERATOR_CLEAR CAIRO_OPERATOR_CLEAR
13 #define MBE_OPERATOR_SOURCE CAIRO_OPERATOR_SOURCE
14 #define MBE_STATUS_SUCCESS CAIRO_STATUS_SUCCESS
15
16 #define mbe_ft_font_face_create_for_pattern cairo_ft_font_face_create_for_pattern
17 #define mbe_image_surface_create_from_png cairo_image_surface_create_from_png
18 #define mbe_pattern_add_color_stop_rgba cairo_pattern_add_color_stop_rgba
19 #define mbe_pattern_create_for_surface cairo_pattern_create_for_surface
20 #define mbe_scaled_font_text_extents cairo_scaled_font_text_extents
21 #define mbe_image_surface_get_stride cairo_image_surface_get_stride
22 #define mbe_image_surface_get_height cairo_image_surface_get_height
23 #define mbe_image_surface_get_width cairo_image_surface_get_width
24 #define mbe_image_surface_get_data cairo_image_surface_get_data
25 #define mbe_scaled_font_reference cairo_scaled_font_reference
26 #define mbe_pattern_create_radial cairo_pattern_create_radial
27 #define mbe_pattern_create_linear cairo_pattern_create_linear
28 #define mbe_xlib_surface_create cairo_xlib_surface_create
29 #define mbe_scaled_font_destroy cairo_scaled_font_destroy
30 #define mbe_font_face_reference cairo_font_face_reference
31 #define mbe_set_source_surface cairo_set_source_surface
32 #define mbe_scaled_font_status cairo_scaled_font_status
33 #define mbe_pattern_set_matrix cairo_pattern_set_matrix
34 #define mbe_font_face_destroy cairo_font_face_destroy
35 #define mbe_paint_with_alpha cairo_paint_with_alpha
36 #define mbe_font_face_status cairo_font_face_status
37 #define mbe_surface_destroy cairo_surface_destroy
38 #define mbe_set_source_rgba cairo_set_source_rgba
39 #define mbe_set_scaled_font cairo_set_scaled_font
40 #define mbe_pattern_destroy cairo_pattern_destroy
41 #define mbe_get_scaled_font cairo_get_scaled_font
42 #define mbe_set_source_rgb cairo_set_source_rgb
43 #define mbe_set_line_width cairo_set_line_width
44 #define mbe_get_font_face cairo_get_font_face
45 #define mbe_fill_preserve cairo_fill_preserve
46 #define mbe_set_operator cairo_set_operator
47 #define mbe_get_operator cairo_get_operator
48 #define mbe_set_source cairo_set_source
49 #define mbe_reset_clip cairo_reset_clip
50 #define mbe_get_target cairo_get_target
51 #define mbe_close_path cairo_close_path
52 #define mbe_text_path cairo_text_path
53 #define mbe_show_text cairo_show_text
54 #define mbe_rectangle cairo_rectangle
55 #define mbe_in_stroke cairo_in_stroke
56 #define mbe_new_path cairo_new_path
57 #define mbe_curve_to cairo_curve_to
58 #define mbe_restore cairo_restore
59 #define mbe_move_to cairo_move_to
60 #define mbe_line_to cairo_line_to
61 #define mbe_in_fill cairo_in_fill
62 #define mbe_destroy cairo_destroy
63 #define mbe_stroke cairo_stroke
64 #define mbe_create cairo_create
65 #define mbe_paint cairo_paint
66 #define mbe_save cairo_save
67 #define mbe_fill cairo_fill
68 #define mbe_clip cairo_clip
69
70 typedef cairo_text_extents_t mbe_text_extents_t;
71 typedef cairo_scaled_font_t mbe_scaled_font_t;
72 typedef cairo_font_face_t mbe_font_face_t;
73 typedef cairo_operator_t mbe_operator_t;
74 typedef cairo_surface_t mbe_surface_t;
75 typedef cairo_pattern_t mbe_pattern_t;
76 typedef cairo_status_t mbe_status_t;
77 typedef cairo_matrix_t mbe_matrix_t;
78 typedef cairo_t mbe_t;
79 typedef float co_aix;
80
81
82 extern mbe_font_face_t * mbe_query_font_face(const char *family,
83 int slant, int weight);
84 extern void mbe_free_font_face(mbe_font_face_t *face);
85
86
87 static mbe_scaled_font_t *
88 mbe_scaled_font_create(mbe_font_face_t *face, mbe_matrix_t *fnt_mtx,
89 mbe_matrix_t *ctm) {
90 cairo_font_options_t *options;
91 mbe_scaled_font_t *scaled;
92
93 options = cairo_font_options_create();
94 if(options == NULL)
95 return NULL;
96
97 scaled = cairo_scaled_font_create(face, fnt_mtx, ctm, options);
98
99 cairo_font_options_destroy(options);
100
101 return scaled;
102 }
103
104 static mbe_surface_t *
105 mbe_image_surface_create_for_data(unsigned char *data,
106 mb_img_fmt_t fmt,
107 int width, int height,
108 int stride) {
109 cairo_format_t _fmt;
110
111 switch(fmt) {
112 case MB_IFMT_ARGB32:
113 _fmt = CAIRO_FORMAT_ARGB32;
114 break;
115 case MB_IFMT_RGB24:
116 _fmt = CAIRO_FORMAT_RGB24;
117 break;
118 case MB_IFMT_A8:
119 _fmt = CAIRO_FORMAT_A8;
120 break;
121 case MB_IFMT_A1:
122 _fmt = CAIRO_FORMAT_A1;
123 break;
124 default:
125 return NULL;
126 }
127 return cairo_image_surface_create_for_data(data, _fmt,
128 width, height, stride);
129 }
130
131 static mb_img_fmt_t
132 mbe_image_surface_get_format(mbe_surface_t *surface) {
133 cairo_format_t _fmt;
134 mb_img_fmt_t fmt;
135
136 _fmt = cairo_image_surface_get_format(surface);
137 switch(_fmt) {
138 case CAIRO_FORMAT_ARGB32:
139 fmt = MB_IFMT_ARGB32;
140 break;
141 case CAIRO_FORMAT_RGB24:
142 fmt = MB_IFMT_RGB24;
143 break;
144 case CAIRO_FORMAT_A8:
145 fmt = MB_IFMT_A8;
146 break;
147 case CAIRO_FORMAT_A1:
148 fmt = MB_IFMT_A1;
149 break;
150 default:
151 fmt = MB_IFMT_DUMMY;
152 break;
153 }
154
155 return fmt;
156 }
157
158 static mbe_surface_t *
159 mbe_image_surface_create(mb_img_fmt_t fmt, int width, int height) {
160 cairo_format_t _fmt;
161
162 switch(fmt) {
163 case MB_IFMT_ARGB32:
164 _fmt = CAIRO_FORMAT_ARGB32;
165 break;
166 case MB_IFMT_RGB24:
167 _fmt = CAIRO_FORMAT_RGB24;
168 break;
169 case MB_IFMT_A8:
170 _fmt = CAIRO_FORMAT_A8;
171 break;
172 case MB_IFMT_A1:
173 _fmt = CAIRO_FORMAT_A1;
174 break;
175 default:
176 return NULL;
177 }
178
179 return cairo_image_surface_create(_fmt, width, height);
180 }
181
182 static void
183 mbe_transform(mbe_t *mbe, const co_aix matrix[6]) {
184 cairo_matrix_t cmtx;
185
186 cmtx.xx = matrix[0];
187 cmtx.xy = matrix[1];
188 cmtx.x0 = matrix[2];
189 cmtx.yx = matrix[3];
190 cmtx.yy = matrix[4];
191 cmtx.y0 = matrix[5];
192
193 cairo_transform(mbe, &cmtx);
194 }
195
196 static void
197 mbe_arc(mbe_t *mbe, co_aix x, co_aix y, co_aix radius,
198 co_aix angle_start, co_aix angle_stop) {
199 if(angle_start <= angle_stop)
200 cairo_arc(mbe, x, y, radius, angle_start, angle_stop);
201 else
202 cairo_arc_negative(mbe, x, y, radius, angle_start, angle_stop);
203 }
204 /* @} */
205
206 #endif /* __MB_GE_CAIRO_H_ */