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annotate include/mb_graph_engine_skia.h @ 630:bd18951b51d5 openvg

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Add initial code for graphic engines
author Thinker K.F. Li <thinker@branda.to>
date Mon, 19 Jul 2010 15:44:49 +0800
parents 287db640078d
children 7b4e80ab671a
rev   line source
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1 #ifndef __MB_GE_SKIA_H_
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2 #define __MB_GE_SKIA_H_
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3
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4 #include <stdio.h>
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5 #include "mb_basic_types.h"
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6 #include "mb_img_ldr.h"
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7
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8 /*! \defgroup mb_ge_skia MadButterfly Graphic Engine with Skia
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9 * @{
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10 */
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11 struct _mbe_text_extents_t {
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12 co_aix x_bearing;
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13 co_aix y_bearing;
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14 co_aix width;
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15 co_aix height;
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16 co_aix x_advance;
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17 co_aix y_advance;
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18 };
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19 struct _mbe_scaled_font_t;
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20 struct _mbe_font_face_t;
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21 struct _mbe_surface_t;
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22 struct _mbe_pattern_t;
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23 struct _mbe_t;
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24
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25 typedef struct _mbe_text_extents_t mbe_text_extents_t;
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26 typedef struct _mbe_scaled_font_t mbe_scaled_font_t;
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27 typedef struct _mbe_font_face_t mbe_font_face_t;
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28 typedef struct _mbe_surface_t mbe_surface_t;
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29 typedef struct _mbe_pattern_t mbe_pattern_t;
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30 typedef struct _mbe_t mbe_t;
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31
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32 extern mbe_pattern_t *mbe_pattern_create_for_surface(mbe_surface_t *surface);
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33 extern mbe_pattern_t *mbe_pattern_create_radial(co_aix cx0, co_aix cy0,
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34 co_aix radius0,
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35 co_aix cx1, co_aix cy1,
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36 co_aix radius1,
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37 grad_stop_t *stops,
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38 int stop_cnt);
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39 extern mbe_pattern_t *mbe_pattern_create_linear(co_aix x0, co_aix y0,
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40 co_aix x1, co_aix y1,
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41 grad_stop_t *stops,
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42 int stop_cnt);
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43 extern mbe_pattern_t *mbe_pattern_create_image(mb_img_data_t *img);
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44 extern void mbe_pattern_set_matrix(mbe_pattern_t *ptn,
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45 const co_aix matrix[6]);
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46 extern void mbe_pattern_destroy(mbe_pattern_t *ptn);
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47
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48 extern int mbe_image_surface_get_stride(mbe_surface_t *surface);
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49 extern int mbe_image_surface_get_height(mbe_surface_t *surface);
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50 extern int mbe_image_surface_get_width(mbe_surface_t *surface);
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51 extern unsigned char *mbe_image_surface_get_data(mbe_surface_t *surface);
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52 extern mb_img_fmt_t mbe_image_surface_get_format(mbe_surface_t *surface);
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53 extern mbe_surface_t *
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54 mbe_image_surface_create(mb_img_fmt_t fmt, int width, int height);
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55
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56 extern mbe_scaled_font_t *mbe_scaled_font_reference(mbe_scaled_font_t *scaled);
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57 extern void mbe_scaled_font_destroy(mbe_scaled_font_t *scaled);
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58 extern mbe_font_face_t *mbe_font_face_reference(mbe_font_face_t *face);
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59 extern mbe_scaled_font_t *
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60 mbe_scaled_font_create(mbe_font_face_t *face, co_aix fnt_mtx[6],
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61 co_aix ctm[6]);
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62 extern mbe_scaled_font_t *mbe_get_scaled_font(mbe_t *canvas);
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63 extern void mbe_scaled_font_text_extents(mbe_scaled_font_t *scaled,
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64 const char *txt,
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65 mbe_text_extents_t *extents);
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66
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67 extern void mbe_font_face_destroy(mbe_font_face_t *face);
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68 extern void mbe_paint_with_alpha(mbe_t *canvas, co_aix alpha);
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69 extern void mbe_surface_destroy(mbe_surface_t *surface);
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70 extern void mbe_set_source_rgba(mbe_t *canvas,
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71 co_aix r, co_aix g, co_aix b, co_aix a);
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72 extern void mbe_set_scaled_font(mbe_t *canvas,
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73 const mbe_scaled_font_t *scaled);
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74 extern void mbe_set_source_rgb(mbe_t *canvas, co_aix r, co_aix g, co_aix b);
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75 extern void mbe_set_line_width(mbe_t *canvas, co_aix width);
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76 extern mbe_font_face_t *mbe_get_font_face(mbe_t *canvas);
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77 extern void mbe_fill_preserve(mbe_t *canvas);
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78 extern void mbe_set_source(mbe_t *canvas, mbe_pattern_t *source);
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79 extern void mbe_reset_scissoring(mbe_t *canvas);
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80 extern mbe_surface_t *mbe_get_target(mbe_t *canvas);
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81 extern void mbe_close_path(mbe_t *canvas);
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82 extern void mbe_text_path(mbe_t *canvas, const char *txt);
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83 extern void mbe_rectangle(mbe_t *canvas, co_aix x, co_aix y,
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84 co_aix width, co_aix height);
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85 extern int mbe_in_stroke(mbe_t *canvas, co_aix x, co_aix y);
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86 extern void mbe_new_path(mbe_t *canvas);
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87 extern void mbe_curve_to(mbe_t *canvas, co_aix x1, co_aix y1,
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88 co_aix x2, co_aix y2,
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89 co_aix x3, co_aix y3);
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90 extern void mbe_restore(mbe_t *canvas);
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91 extern void mbe_move_to(mbe_t *canvas, co_aix x, co_aix y);
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92 extern void mbe_line_to(mbe_t *canvas, co_aix x, co_aix y);
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93 extern int mbe_in_fill(mbe_t *canvas, co_aix x, co_aix y);
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94 extern void mbe_stroke(mbe_t *canvas);
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95 extern mbe_t *mbe_create(mbe_surface_t *target);
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96 extern void mbe_destroy(mbe_t *canvas);
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97 extern void mbe_paint(mbe_t *canvas);
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98 extern void mbe_save(mbe_t *canvas);
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99 extern void mbe_fill(mbe_t *canvas);
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100 extern void mbe_scissoring(mbe_t *canvas, int n_areas, area_t **areas);
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101
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102 extern mbe_font_face_t * mbe_query_font_face(const char *family,
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103 int slant, int weight);
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104 extern void mbe_free_font_face(mbe_font_face_t *face);
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105
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106 extern void mbe_clear(mbe_t *canvas);
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107 extern void mbe_copy_source(mbe_t *src, mbe_t *dst);
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108 extern void mbe_transform(mbe_t *mbe, co_aix matrix[6]);
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109 extern void mbe_arc(mbe_t *mbe, co_aix x, co_aix y, co_aix radius,
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110 co_aix angle_start, co_aix angle_stop);
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111 #define mbe_init()
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112 /* @} */
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113
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114 #endif /* __MB_GE_SKIA_H_ */