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annotate include/mb_graph_engine_openvg.h @ 620:3f544e876939 openvg

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The way to mbe_save and mbe_restore
author Thinker K.F. Li <thinker@branda.to>
date Fri, 09 Jul 2010 08:51:18 +0800
parents 7020ed3c3e37
children d8cdd57ceff5
rev   line source
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1 #ifndef __MB_GE_OPENVG_H_
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2 #define __MB_GE_OPENVG_H_
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3
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4 #include <stdio.h>
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5 #include <stdlib.h>
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6 #include <EGL/egl.h>
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7 #include <VG/openvg.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_openvg MadButterfly Graphic Engine with OpenVG
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12 * @{
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13 */
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14 #define mbe_scaled_font_text_extents(scaled, utf8, extents)
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15 #define mbe_image_surface_get_stride(surface) (20)
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16 #define mbe_image_surface_get_format(surface) ((mb_img_fmt_t)0)
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17 #define mbe_image_surface_get_height(surface) (surface)->h
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18 #define mbe_image_surface_get_width(surface) (surface)->w
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19 #define mbe_image_surface_get_data(surface) ((unsigned char *)NULL)
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20 #define mbe_scaled_font_reference(scaled) ((mbe_scaled_font_t *)NULL)
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21 #define mbe_scaled_font_destroy(scaled)
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22 #define mbe_font_face_reference(face) ((mbe_font_face_t *)NULL)
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23 #define mbe_scaled_font_create(face, fnt_mtx, ctm) ((mbe_scaled_font_t *)NULL)
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24 #define mbe_font_face_destroy(face)
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25 #define mbe_set_scaled_font(canvas, scaled)
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26 #define mbe_get_scaled_font(canvas) ((mbe_scaled_font_t *)NULL)
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27 #define mbe_query_font_face(family, slant, weight) ((mbe_font_face_t *)NULL)
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28 #define mbe_free_font_face(face)
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29 #define mbe_set_line_width(canvas, w) \
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30 do { \
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31 _MK_CURRENT_CTX(canvas); \
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32 vgSetf(VG_STROKE_LINE_WIDTH, w); \
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33 } while(0)
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34 #define mbe_set_source_rgb(canvas, r, g, b) \
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35 mbe_set_source_rgba(canvas, r, g, b, 1)
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36 #define mbe_get_font_face(canvas) ((mbe_font_face_t *)NULL)
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37 #define mbe_copy_source(src_canvas, dst_canvas)
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38 #define mbe_set_source(canvas, pattern) \
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39 do { \
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40 (canvas)->src = (pattern); \
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41 (canvas)->paint = (pattern)->paint; \
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42 (canvas)->paint_installed = 0; \
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43 } while(0)
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44 #define mbe_reset_scissoring(canvas) \
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45 do { \
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46 _MK_CURRENT_CTX(canvas); \
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47 vgSeti(VG_SCISSORING, VG_FALSE); \
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48 } while(0)
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49 #define mbe_get_target(canvas) ((mbe_surface_t *)(canvas)->tgt)
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50 #define mbe_close_path(canvas)
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51 #define mbe_text_path(canvas, utf8)
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52 #define mbe_rectangle(canvas, x, y, w, h)
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53 #define mbe_in_stroke(canvas, x, y) (0)
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54 #define mbe_new_path(canvas) \
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55 vgClearPath((canvas)->path, VG_PATH_CAPABILITY_ALL)
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56 #define mbe_curve_to(canvas, x1, y1, x2, y2, x3, y3)
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57 #define mbe_move_to(canvas, x, y)
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58 #define mbe_line_to(canvas, x, y)
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59 #define mbe_in_fill(canvas, x, y) (0)
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60 /* TODO: change prototype of mbe_arc() to remove mbe_save() and
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61 * mbe_restore().
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62 */
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63 #define mbe_save(canvas)
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64 #define mbe_restore(canvas)
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65 #define mbe_arc(canvas, x, y, radius, angle_start, angle_stop)
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66
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67 typedef struct _mbe_text_extents_t mbe_text_extents_t;
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68 typedef int mbe_scaled_font_t;
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69 typedef int mbe_font_face_t;
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70 typedef struct _ge_openvg_surface mbe_surface_t;
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71 typedef struct _ge_openvg_pattern mbe_pattern_t;
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72 typedef struct _ge_openvg_mbe mbe_t;
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73 typedef struct _ge_openvg_img _ge_openvg_img_t;
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74
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75 struct _mbe_text_extents_t {
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76 co_aix x_bearing;
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77 co_aix y_bearing;
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78 co_aix width;
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79 co_aix height;
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80 co_aix x_advance;
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81 co_aix y_advance;
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82 };
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83
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84 struct _ge_openvg_mbe {
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85 mbe_pattern_t *src;
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86 VGPaint paint; /*!< \brief The paint associated with
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87 * the src pattern */
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88 int paint_installed;
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89 mbe_surface_t *tgt;
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90 EGLContext ctx;
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91 VGPath path;
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92
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93 VGfloat mtx[9];
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94 };
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95
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96 struct _ge_openvg_surface {
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97 void *surface;
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98 mbe_t *asso_mbe; /* There is a association between
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99 * surface and mbe */
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100 _ge_openvg_img_t *asso_img;
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101 int w, h;
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102 };
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103
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104 struct _ge_openvg_pattern {
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105 _ge_openvg_img_t *asso_img;
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106 VGfloat mtx[9];
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107 VGPaint paint;
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108 };
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109
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110 /*! \brief Information associated with VGImage.
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111 *
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112 * A VGImage can associated one of pattern or surface. This type is
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113 * used to make sure previous associated pattern or surface being
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114 * released before new association.
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115 *
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116 * A _ge_openvg_img can be associated by mutltiple patterns and
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117 * surfaces. But, at most one of associated patterns or surfaces, the
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118 * _ge_openvg_img can be activated for at any instant.
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119 * _ge_openvg_img::activated_for trace the object it being activated
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120 * for. When a context will be current, the _ge_openvg_img associated
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121 * with its surface would be activated for the surface. When a paint
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122 * wil be used, the _ge_openvg_img associated must be activated for
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123 * the paint. Before activated, the old activation must be
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124 * deactivated. _ge_openvg_img::deactivate_func is a pointer to
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parents: 618
diff changeset
125 * deactivation function of activated pattern or surface.
603
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Thinker K.F. Li <thinker@branda.to>
parents: 602
diff changeset
126 *
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parents: 602
diff changeset
127 * \sa _ge_openvg_img_t
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128 * \note This is type is for internal using of OpenVG graphic engine.
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diff changeset
129 */
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diff changeset
130 struct _ge_openvg_img {
618
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diff changeset
131 int ref;
603
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diff changeset
132 VGImage img;
619
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133 void *activated_for;
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parents: 618
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134 void (*deactivate_func)(void *obj);
603
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diff changeset
135 };
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parents: 602
diff changeset
136
578
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137 #define MB_MATRIX_2_OPENVG(vgmtx, mtx) do { \
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138 (vgmtx)[0] = (mtx)[0]; \
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139 (vgmtx)[1] = (mtx)[1]; \
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140 (vgmtx)[2] = (mtx)[2]; \
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141 (vgmtx)[3] = (mtx)[3]; \
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142 (vgmtx)[4] = (mtx)[4]; \
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143 (vgmtx)[5] = (mtx)[5]; \
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144 (vgmtx)[6] = 0; \
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145 (vgmtx)[7] = 0; \
578
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146 (vgmtx)[8] = 1; \
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147 } while(0)
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148
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149 extern EGLNativeDisplayType _ge_openvg_disp_id;
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150 extern mbe_t *_ge_openvg_current_canvas;
612
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parents: 611
diff changeset
151 extern void _mbe_load_pattern_mtx(VGfloat *mtx1, VGfloat *mtx2, int mode);
619
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parents: 618
diff changeset
152 extern void _ge_vg_img_activate_for_pattern(mbe_pattern_t *ptn);
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parents: 618
diff changeset
153 extern void _ge_vg_img_activate_for_surface(mbe_surface_t *surf);
582
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parents: 580
diff changeset
154
610
e78bff7d23d3 create pattern from surface for OpenVG
Thinker K.F. Li <thinker@branda.to>
parents: 608
diff changeset
155 extern mbe_pattern_t *mbe_pattern_create_for_surface(mbe_surface_t *surface);
606
e21eb54c7d9c Implement radial gradient paint.
Thinker K.F. Li <thinker@branda.to>
parents: 604
diff changeset
156 extern mbe_pattern_t *mbe_pattern_create_radial(co_aix cx0, co_aix cy0,
e21eb54c7d9c Implement radial gradient paint.
Thinker K.F. Li <thinker@branda.to>
parents: 604
diff changeset
157 co_aix radius0,
e21eb54c7d9c Implement radial gradient paint.
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parents: 604
diff changeset
158 co_aix cx1, co_aix cy1,
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Thinker K.F. Li <thinker@branda.to>
parents: 604
diff changeset
159 co_aix radius1,
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Thinker K.F. Li <thinker@branda.to>
parents: 604
diff changeset
160 grad_stop_t *stops,
e21eb54c7d9c Implement radial gradient paint.
Thinker K.F. Li <thinker@branda.to>
parents: 604
diff changeset
161 int stop_cnt);
604
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Thinker K.F. Li <thinker@branda.to>
parents: 603
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162 extern mbe_pattern_t *mbe_pattern_create_linear(co_aix x0, co_aix y0,
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parents: 603
diff changeset
163 co_aix x1, co_aix y1,
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parents: 603
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164 grad_stop_t *stops,
38514a7c6b26 Linear gradient for OpenVG
Thinker K.F. Li <thinker@branda.to>
parents: 603
diff changeset
165 int stop_cnt);
607
51dc49fd34a8 Create pattern from an image
Thinker K.F. Li <thinker@branda.to>
parents: 606
diff changeset
166 extern mbe_pattern_t *mbe_pattern_create_image(mb_img_data_t *img);
618
35a67a837a53 Use reference count to trace life of _ge_openvg_img_t objects
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parents: 617
diff changeset
167 extern void mbe_pattern_destroy(mbe_pattern_t *ptn);
612
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Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
168 extern void mbe_pattern_set_matrix(mbe_pattern_t *ptn, co_aix *mtx);
598
aba62eb9362d define color source for VG
Thinker K.F. Li <thinker@branda.to>
parents: 597
diff changeset
169 extern void mbe_set_source_rgba(mbe_t *canvas, co_comp_t r, co_comp_t g,
aba62eb9362d define color source for VG
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parents: 597
diff changeset
170 co_comp_t b, co_comp_t a);
604
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parents: 603
diff changeset
171 /* TODO: rename n_areas to areas_cnt and make it after areas */
588
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Thinker K.F. Li <thinker@branda.to>
parents: 586
diff changeset
172 extern void mbe_scissoring(mbe_t *canvas, int n_areas, area_t **areas);
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173
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parents: 586
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174
584
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175 #define _VG_DISPLAY() eglGetDisplay(_ge_openvg_disp_id)
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176
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diff changeset
177 /* \brief Make the context of a canvas to be current context.
604
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178 *
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179 * TODO: swtich VGImage between VGPaint and Surface.
584
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180 */
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181 #define _MK_CURRENT_CTX(canvas) do { \
543a2a8523fb Make surce current VG context
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182 if(_ge_openvg_current_canvas != (canvas)) { \
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183 _ge_openvg_current_canvas = canvas; \
604
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184 eglMakeCurrent(_VG_DISPLAY(), \
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185 (canvas)->tgt->surface, \
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186 (canvas)->tgt->surface, \
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187 (canvas)->ctx); \
584
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188 } \
619
7020ed3c3e37 Actiavte a VGImage before using a pattern paint or image surface.
Thinker K.F. Li <thinker@branda.to>
parents: 618
diff changeset
189 /* \sa _ge_openvg_img_t */ \
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parents: 618
diff changeset
190 _ge_vg_img_activate_for_surface((canvas)->tgt); \
584
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191 } while(0)
604
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192 /* TODO: switch VGImage between VGPaint and surface. */
595
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diff changeset
193 #define _MK_CURRENT_PAINT(canvas) \
619
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parents: 618
diff changeset
194 do { \
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parents: 618
diff changeset
195 if((canvas)->paint_installed == 0) { \
7020ed3c3e37 Actiavte a VGImage before using a pattern paint or image surface.
Thinker K.F. Li <thinker@branda.to>
parents: 618
diff changeset
196 vgSetPaint((canvas)->paint, VG_FILL_PATH|VG_STROKE_PATH); \
7020ed3c3e37 Actiavte a VGImage before using a pattern paint or image surface.
Thinker K.F. Li <thinker@branda.to>
parents: 618
diff changeset
197 (canvas)->paint_installed = 1; \
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parents: 618
diff changeset
198 } \
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parents: 618
diff changeset
199 /* \sa _ge_openvg_img_t */ \
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Thinker K.F. Li <thinker@branda.to>
parents: 618
diff changeset
200 if((canvas)->src) \
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Thinker K.F. Li <thinker@branda.to>
parents: 618
diff changeset
201 _ge_vg_img_activate_for_pattern((canvas)->src); \
7020ed3c3e37 Actiavte a VGImage before using a pattern paint or image surface.
Thinker K.F. Li <thinker@branda.to>
parents: 618
diff changeset
202 } while(0)
583
ca57132020e4 Set transform matrix for VG contexts
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diff changeset
203
612
b1d1b6c5af90 Implements setting pattern matrix for OpenVG
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parents: 611
diff changeset
204 #define mbe_transform(canvas, _mtx) \
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parents: 611
diff changeset
205 do { \
614
9c5705da2495 Fix the bug of foregting make current context before seting transform
Thinker K.F. Li <thinker@branda.to>
parents: 612
diff changeset
206 _MK_CURRENT_CTX(canvas); \
612
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parents: 611
diff changeset
207 MB_MATRIX_2_OPENVG((canvas)->mtx, _mtx); \
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parents: 611
diff changeset
208 _mbe_load_pattern_mtx(_mtx, NULL, \
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Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
209 VG_MATRIX_PATH_USER_TO_SURFACE); \
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parents: 611
diff changeset
210 } while(0)
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parents: 611
diff changeset
211
583
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diff changeset
212
582
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Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
213 #define EGL_GLX 1
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
214 #ifdef EGL_GLX
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parents: 580
diff changeset
215 #include <X11/Xlib.h>
dd546c4da180 deal with EGL surface, context for OpenVG GE
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parents: 580
diff changeset
216 #include <X11/Xutil.h>
dd546c4da180 deal with EGL surface, context for OpenVG GE
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parents: 580
diff changeset
217
589
d733e198bb25 Move functions from mb_graph_engine_openvg.h to the C file
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parents: 588
diff changeset
218 extern mbe_surface_t *mbe_vg_win_surface_create(Display *display,
d733e198bb25 Move functions from mb_graph_engine_openvg.h to the C file
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parents: 588
diff changeset
219 Drawable drawable,
d733e198bb25 Move functions from mb_graph_engine_openvg.h to the C file
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parents: 588
diff changeset
220 Visual *visual,
d733e198bb25 Move functions from mb_graph_engine_openvg.h to the C file
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parents: 588
diff changeset
221 int width, int height);
582
dd546c4da180 deal with EGL surface, context for OpenVG GE
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parents: 580
diff changeset
222 #endif
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parents: 580
diff changeset
223
589
d733e198bb25 Move functions from mb_graph_engine_openvg.h to the C file
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parents: 588
diff changeset
224 extern mbe_surface_t *mbe_image_surface_create(mb_img_fmt_t fmt,
d733e198bb25 Move functions from mb_graph_engine_openvg.h to the C file
Thinker K.F. Li <thinker@branda.to>
parents: 588
diff changeset
225 int w, int h);
618
35a67a837a53 Use reference count to trace life of _ge_openvg_img_t objects
Thinker K.F. Li <thinker@branda.to>
parents: 617
diff changeset
226 extern void mbe_surface_destroy(mbe_surface_t *surface);
582
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
227
589
d733e198bb25 Move functions from mb_graph_engine_openvg.h to the C file
Thinker K.F. Li <thinker@branda.to>
parents: 588
diff changeset
228 extern mbe_t *mbe_create(mbe_surface_t *surface);
590
b714f0c9992e include a VGPath in VG canvas
Thinker K.F. Li <thinker@branda.to>
parents: 589
diff changeset
229 extern void mbe_destroy(mbe_t *canvas);
608
6c74bc371e37 paint with alpha for OpenVG
Thinker K.F. Li <thinker@branda.to>
parents: 607
diff changeset
230 extern void mbe_paint_with_alpha(mbe_t *canvas, co_comp_t alpha);
595
aaaaa03af04d Set VGPaint for canvas
Thinker K.F. Li <thinker@branda.to>
parents: 593
diff changeset
231 extern void mbe_paint(mbe_t *canvas);
597
3300992b29ff Define mbe_clear() for VG
Thinker K.F. Li <thinker@branda.to>
parents: 595
diff changeset
232 extern void mbe_clear(mbe_t *canvas);
595
aaaaa03af04d Set VGPaint for canvas
Thinker K.F. Li <thinker@branda.to>
parents: 593
diff changeset
233
593
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
234 static void
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
235 mbe_stroke(mbe_t *canvas) {
ac942664fe86 stroke and fill for VG
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parents: 592
diff changeset
236 _MK_CURRENT_CTX(canvas);
595
aaaaa03af04d Set VGPaint for canvas
Thinker K.F. Li <thinker@branda.to>
parents: 593
diff changeset
237 _MK_CURRENT_PAINT(canvas);
612
b1d1b6c5af90 Implements setting pattern matrix for OpenVG
Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
238 if(canvas->src)
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Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
239 _mbe_load_pattern_mtx(canvas->src->mtx, NULL,
b1d1b6c5af90 Implements setting pattern matrix for OpenVG
Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
240 VG_MATRIX_STROKE_PAINT_TO_USER);
593
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
241
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
242 vgDrawPath(canvas->path, VG_STROKE_PATH);
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
243 vgClearPath(canvas->path, VG_PATH_CAPABILITY_ALL);
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
244 }
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
245
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
246 static void
616
7d70a811829b mbe_fill_preserve() and mbe_reset_scissoring() for OpenVG
Thinker K.F. Li <thinker@branda.to>
parents: 615
diff changeset
247 mbe_fill_preserve(mbe_t *canvas) {
593
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
parents: 592
diff changeset
248 _MK_CURRENT_CTX(canvas);
595
aaaaa03af04d Set VGPaint for canvas
Thinker K.F. Li <thinker@branda.to>
parents: 593
diff changeset
249 _MK_CURRENT_PAINT(canvas);
612
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Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
250 if(canvas->src)
b1d1b6c5af90 Implements setting pattern matrix for OpenVG
Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
251 _mbe_load_pattern_mtx(canvas->src->mtx, NULL,
b1d1b6c5af90 Implements setting pattern matrix for OpenVG
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252 VG_MATRIX_FILL_PAINT_TO_USER);
593
ac942664fe86 stroke and fill for VG
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253
ac942664fe86 stroke and fill for VG
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254 vgDrawPath(canvas->path, VG_FILL_PATH);
616
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255 }
7d70a811829b mbe_fill_preserve() and mbe_reset_scissoring() for OpenVG
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256
7d70a811829b mbe_fill_preserve() and mbe_reset_scissoring() for OpenVG
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257 static void
7d70a811829b mbe_fill_preserve() and mbe_reset_scissoring() for OpenVG
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258 mbe_fill(mbe_t *canvas) {
7d70a811829b mbe_fill_preserve() and mbe_reset_scissoring() for OpenVG
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259 mbe_fill_preserve(canvas);
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260 vgClearPath(canvas->path, VG_PATH_CAPABILITY_ALL);
ac942664fe86 stroke and fill for VG
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261 }
578
fd5f5d9e00d2 A dummy graphic engine for OpenVG.
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262
fd5f5d9e00d2 A dummy graphic engine for OpenVG.
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263 /* @} */
fd5f5d9e00d2 A dummy graphic engine for OpenVG.
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264
fd5f5d9e00d2 A dummy graphic engine for OpenVG.
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265 #endif /* __MB_GE_OPENVG_H_ */