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comparison src/graph_engine_openvg.c @ 607:51dc49fd34a8 openvg

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Create pattern from an image
author Thinker K.F. Li <thinker@branda.to>
date Sun, 04 Jul 2010 21:09:56 +0800
parents e21eb54c7d9c
children 6c74bc371e37
comparison
equal deleted inserted replaced
606:e21eb54c7d9c 607:51dc49fd34a8
94 94
95 pattern = _mbe_pattern_create_gradient(gradient, 4, 95 pattern = _mbe_pattern_create_gradient(gradient, 4,
96 VG_PAINT_TYPE_LINEAR_GRADIENT, 96 VG_PAINT_TYPE_LINEAR_GRADIENT,
97 stops, stop_cnt); 97 stops, stop_cnt);
98 return pattern; 98 return pattern;
99 }
100
101 mbe_pattern_t *
102 mbe_pattern_create_image(mb_img_data_t *img) {
103 VGPaint paint;
104 mbe_pattern_t *pattern;
105 _ge_openvg_img_t *ge_img;
106 VGImage vg_img;
107 VGImageFormat fmt = VG_sARGB_8888;
108
109 /* \note OpenVG implementation supports one \ref MB_IFMT_ARGB32
110 * image.
111 */
112 if(img->fmt != MB_IFMT_ARGB32)
113 return NULL;
114
115 /* Create and copy pixels into VGImage */
116 vg_img = vgCreateImage(fmt, img->w, img->h,
117 VG_IMAGE_QUALITY_NONANTIALIASED);
118 if(vg_img == VG_INVALID_HANDLE)
119 return NULL;
120 vgImageSubData(vg_img, img->content, img->stride, fmt,
121 0, 0, img->w, img->h);
122
123 /* Allocate objects */
124 ge_img = O_ALLOC(_ge_openvg_img_t);
125 pattern = O_ALLOC(mbe_pattern_t);
126 paint = vgCreatePaint();
127 if(ge_img == NULL || pattern == NULL || paint == VG_INVALID_HANDLE)
128 goto err;
129
130
131 /* Initialize objects */
132 ge_img->img = vg_img;
133 ge_img->asso_pattern = NULL;
134 ge_img->asso_surface = NULL;
135
136 pattern->paint = paint;
137 pattern->asso_img = ge_img;
138
139 return pattern;
140
141 err:
142 if(ge_img) free(ge_img);
143 if(pattern) free(pattern);
144 if(paint != VG_INVALID_HANDLE) vgDestroyPaint(paint);
145 vgDestroyImage(vg_img);
146 return NULL;
99 } 147 }
100 148
101 void 149 void
102 mbe_set_source_rgba(mbe_t *canvas, co_comp_t r, co_comp_t g, 150 mbe_set_source_rgba(mbe_t *canvas, co_comp_t r, co_comp_t g,
103 co_comp_t b, co_comp_t a) { 151 co_comp_t b, co_comp_t a) {