annotate include/mb_graph_engine_openvg.h @ 615:0f0abc48e10a openvg

mbe_new_path() for OpenVG
author Thinker K.F. Li <thinker@branda.to>
date Thu, 08 Jul 2010 11:29:58 +0800
parents 9c5705da2495
children 7d70a811829b
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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_pattern_destroy(pattern)
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27 #define mbe_get_scaled_font(canvas) ((mbe_scaled_font_t *)NULL)
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28 #define mbe_query_font_face(family, slant, weight) ((mbe_font_face_t *)NULL)
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29 #define mbe_free_font_face(face)
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30 #define mbe_set_line_width(canvas, w)
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31 #define mbe_set_source_rgb(canvas, r, g, b) \
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32 mbe_set_source_rgba(canvas, r, g, b, 1)
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33 #define mbe_get_font_face(canvas) ((mbe_font_face_t *)NULL)
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34 #define mbe_fill_preserve(canvas)
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35 #define mbe_copy_source(src_canvas, dst_canvas)
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36 #define mbe_set_source(canvas, pattern) \
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37 do { \
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38 (canvas)->src = (pattern); \
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39 (canvas)->paint = (pattern)->paint; \
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40 (canvas)->paint_installed = 0; \
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41 } while(0)
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42 #define mbe_reset_scissoring(canvas)
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43 #define mbe_get_target(canvas) ((mbe_surface_t *)(canvas)->tgt)
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44 #define mbe_close_path(canvas)
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45 #define mbe_text_path(canvas, utf8)
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46 #define mbe_rectangle(canvas, x, y, w, h)
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47 #define mbe_in_stroke(canvas, x, y) (0)
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48 #define mbe_new_path(canvas) \
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49 vgClearPath((canvas)->path, VG_PATH_CAPABILITY_ALL)
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50 #define mbe_curve_to(canvas, x1, y1, x2, y2, x3, y3)
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51 #define mbe_restore(canvas)
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52 #define mbe_move_to(canvas, x, y)
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53 #define mbe_line_to(canvas, x, y)
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54 #define mbe_in_fill(canvas, x, y) (0)
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55 #define mbe_save(canvas)
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56 #define mbe_arc(canvas, x, y, radius, angle_start, angle_stop)
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57
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58 typedef struct _mbe_text_extents_t mbe_text_extents_t;
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59 typedef int mbe_scaled_font_t;
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60 typedef int mbe_font_face_t;
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61 typedef struct _ge_openvg_surface mbe_surface_t;
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62 typedef struct _ge_openvg_pattern mbe_pattern_t;
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63 typedef struct _ge_openvg_mbe mbe_t;
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64 typedef struct _ge_openvg_img _ge_openvg_img_t;
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65
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66 struct _mbe_text_extents_t {
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67 co_aix x_bearing;
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68 co_aix y_bearing;
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69 co_aix width;
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70 co_aix height;
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71 co_aix x_advance;
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72 co_aix y_advance;
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73 };
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74
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75 struct _ge_openvg_mbe {
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76 mbe_pattern_t *src;
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77 VGPaint paint; /*!< \brief The paint associated with
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78 * the src pattern */
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79 int paint_installed;
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80 mbe_surface_t *tgt;
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81 EGLContext ctx;
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82 VGPath path;
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83
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84 VGfloat mtx[9];
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85 };
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86
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87 struct _ge_openvg_surface {
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88 void *surface;
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89 mbe_t *asso_mbe; /* There is a association between
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90 * surface and mbe */
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91 _ge_openvg_img_t *asso_img;
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92 int w, h;
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93 };
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94
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95 struct _ge_openvg_pattern {
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96 _ge_openvg_img_t *asso_img;
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97 VGfloat mtx[9];
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98 VGPaint paint;
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99 };
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101 /*! \brief Information associated with VGImage.
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102 *
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103 * A VGImage can associated one of pattern or surface. This type is
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104 * used to make sure previous associated pattern or surface being
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105 * released before new association.
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106 *
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107 * Functions must release assocation specified by
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108 * _ge_openvg_img::asso_pattern or _ge_openvg_img::asso_surface before
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109 * new association, and record new association as one of thes two
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110 * vairables.
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111 *
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112 * \sa _ge_openvg_img_t
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113 * \note This is type is for internal using of OpenVG graphic engine.
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114 */
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115 struct _ge_openvg_img {
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116 VGImage img;
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117 mbe_pattern_t *asso_pattern;
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118 mbe_surface_t *asso_surface;
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119 };
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120
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121 #define MB_MATRIX_2_OPENVG(vgmtx, mtx) do { \
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122 (vgmtx)[0] = (mtx)[0]; \
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123 (vgmtx)[1] = (mtx)[1]; \
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124 (vgmtx)[2] = (mtx)[2]; \
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125 (vgmtx)[3] = (mtx)[3]; \
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126 (vgmtx)[4] = (mtx)[4]; \
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127 (vgmtx)[5] = (mtx)[5]; \
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128 (vgmtx)[6] = 0; \
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diff changeset
129 (vgmtx)[7] = 0; \
578
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130 (vgmtx)[8] = 1; \
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131 } while(0)
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132
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133 extern EGLNativeDisplayType _ge_openvg_disp_id;
584
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134 extern mbe_t *_ge_openvg_current_canvas;
612
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parents: 611
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135 extern void _mbe_load_pattern_mtx(VGfloat *mtx1, VGfloat *mtx2, int mode);
582
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parents: 580
diff changeset
136
610
e78bff7d23d3 create pattern from surface for OpenVG
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parents: 608
diff changeset
137 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
138 extern mbe_pattern_t *mbe_pattern_create_radial(co_aix cx0, co_aix cy0,
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parents: 604
diff changeset
139 co_aix radius0,
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parents: 604
diff changeset
140 co_aix cx1, co_aix cy1,
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Thinker K.F. Li <thinker@branda.to>
parents: 604
diff changeset
141 co_aix radius1,
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parents: 604
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142 grad_stop_t *stops,
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Thinker K.F. Li <thinker@branda.to>
parents: 604
diff changeset
143 int stop_cnt);
604
38514a7c6b26 Linear gradient for OpenVG
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parents: 603
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144 extern mbe_pattern_t *mbe_pattern_create_linear(co_aix x0, co_aix y0,
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145 co_aix x1, co_aix y1,
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146 grad_stop_t *stops,
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parents: 603
diff changeset
147 int stop_cnt);
607
51dc49fd34a8 Create pattern from an image
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parents: 606
diff changeset
148 extern mbe_pattern_t *mbe_pattern_create_image(mb_img_data_t *img);
612
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parents: 611
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149 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
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150 extern void mbe_set_source_rgba(mbe_t *canvas, co_comp_t r, co_comp_t g,
aba62eb9362d define color source for VG
Thinker K.F. Li <thinker@branda.to>
parents: 597
diff changeset
151 co_comp_t b, co_comp_t a);
604
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Thinker K.F. Li <thinker@branda.to>
parents: 603
diff changeset
152 /* 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
153 extern void mbe_scissoring(mbe_t *canvas, int n_areas, area_t **areas);
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parents: 586
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154
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parents: 586
diff changeset
155
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156 #define _VG_DISPLAY() eglGetDisplay(_ge_openvg_disp_id)
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157
543a2a8523fb Make surce current VG context
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158 /* \brief Make the context of a canvas to be current context.
604
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159 *
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160 * TODO: swtich VGImage between VGPaint and Surface.
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161 */
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162 #define _MK_CURRENT_CTX(canvas) do { \
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163 if(_ge_openvg_current_canvas != (canvas)) { \
543a2a8523fb Make surce current VG context
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parents: 583
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164 _ge_openvg_current_canvas = canvas; \
604
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parents: 603
diff changeset
165 eglMakeCurrent(_VG_DISPLAY(), \
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parents: 603
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166 (canvas)->tgt->surface, \
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parents: 603
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167 (canvas)->tgt->surface, \
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168 (canvas)->ctx); \
584
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169 } \
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parents: 583
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170 } while(0)
604
38514a7c6b26 Linear gradient for OpenVG
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171 /* TODO: switch VGImage between VGPaint and surface. */
595
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parents: 593
diff changeset
172 #define _MK_CURRENT_PAINT(canvas) \
612
b1d1b6c5af90 Implements setting pattern matrix for OpenVG
Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
173 if((canvas)->paint_installed) { \
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parents: 611
diff changeset
174 vgSetPaint((canvas)->paint, VG_FILL_PATH|VG_STROKE_PATH); \
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parents: 611
diff changeset
175 }
583
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176
612
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diff changeset
177 #define mbe_transform(canvas, _mtx) \
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parents: 611
diff changeset
178 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
179 _MK_CURRENT_CTX(canvas); \
612
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parents: 611
diff changeset
180 MB_MATRIX_2_OPENVG((canvas)->mtx, _mtx); \
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parents: 611
diff changeset
181 _mbe_load_pattern_mtx(_mtx, NULL, \
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Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
182 VG_MATRIX_PATH_USER_TO_SURFACE); \
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parents: 611
diff changeset
183 } while(0)
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184
583
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185
582
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Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
186 #define EGL_GLX 1
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parents: 580
diff changeset
187 #ifdef EGL_GLX
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188 #include <X11/Xlib.h>
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189 #include <X11/Xutil.h>
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190
589
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191 extern mbe_surface_t *mbe_vg_win_surface_create(Display *display,
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192 Drawable drawable,
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193 Visual *visual,
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194 int width, int height);
582
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195 #endif
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196
589
d733e198bb25 Move functions from mb_graph_engine_openvg.h to the C file
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diff changeset
197 extern mbe_surface_t *mbe_image_surface_create(mb_img_fmt_t fmt,
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diff changeset
198 int w, int h);
582
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diff changeset
199
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parents: 580
diff changeset
200 static void
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parents: 580
diff changeset
201 mbe_surface_destroy(mbe_surface_t *surface) {
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
202 EGLDisplay display;
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
203
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
204 display = _VG_DISPLAY();
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
205 eglDestroySurface(display, surface->surface);
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
206
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
207 if(surface->asso_mbe)
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
208 surface->asso_mbe->tgt = NULL;
603
39d27911c3ae Remove mbe_image_surface_create_for_data()
Thinker K.F. Li <thinker@branda.to>
parents: 602
diff changeset
209
39d27911c3ae Remove mbe_image_surface_create_for_data()
Thinker K.F. Li <thinker@branda.to>
parents: 602
diff changeset
210 if(surface->asso_img)
39d27911c3ae Remove mbe_image_surface_create_for_data()
Thinker K.F. Li <thinker@branda.to>
parents: 602
diff changeset
211 surface->asso_img->asso_surface = NULL;
582
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
212
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
213 free(surface);
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
214 }
dd546c4da180 deal with EGL surface, context for OpenVG GE
Thinker K.F. Li <thinker@branda.to>
parents: 580
diff changeset
215
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
216 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
217 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
218 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
219 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
220 extern void mbe_clear(mbe_t *canvas);
595
aaaaa03af04d Set VGPaint for canvas
Thinker K.F. Li <thinker@branda.to>
parents: 593
diff changeset
221
593
ac942664fe86 stroke and fill for VG
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parents: 592
diff changeset
222 static void
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parents: 592
diff changeset
223 mbe_stroke(mbe_t *canvas) {
ac942664fe86 stroke and fill for VG
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parents: 592
diff changeset
224 _MK_CURRENT_CTX(canvas);
595
aaaaa03af04d Set VGPaint for canvas
Thinker K.F. Li <thinker@branda.to>
parents: 593
diff changeset
225 _MK_CURRENT_PAINT(canvas);
612
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Thinker K.F. Li <thinker@branda.to>
parents: 611
diff changeset
226 if(canvas->src)
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parents: 611
diff changeset
227 _mbe_load_pattern_mtx(canvas->src->mtx, NULL,
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parents: 611
diff changeset
228 VG_MATRIX_STROKE_PAINT_TO_USER);
593
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parents: 592
diff changeset
229
ac942664fe86 stroke and fill for VG
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parents: 592
diff changeset
230 vgDrawPath(canvas->path, VG_STROKE_PATH);
ac942664fe86 stroke and fill for VG
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parents: 592
diff changeset
231 vgClearPath(canvas->path, VG_PATH_CAPABILITY_ALL);
ac942664fe86 stroke and fill for VG
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parents: 592
diff changeset
232 }
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parents: 592
diff changeset
233
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_fill(mbe_t *canvas) {
ac942664fe86 stroke and fill for VG
Thinker K.F. Li <thinker@branda.to>
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_FILL_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_FILL_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 }
578
fd5f5d9e00d2 A dummy graphic engine for OpenVG.
Thinker K.F. Li <thinker@branda.to>
parents:
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245
fd5f5d9e00d2 A dummy graphic engine for OpenVG.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
246 /* @} */
fd5f5d9e00d2 A dummy graphic engine for OpenVG.
Thinker K.F. Li <thinker@branda.to>
parents:
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247
fd5f5d9e00d2 A dummy graphic engine for OpenVG.
Thinker K.F. Li <thinker@branda.to>
parents:
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248 #endif /* __MB_GE_OPENVG_H_ */