vg_state.h revision 544dd4b11f7be76bb00fe29a60eaf2772dcc69ca 
1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.  All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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25 **************************************************************************/
26
27#ifndef VG_STATE_H
28#define VG_STATE_H
29
30#include "VG/openvg.h"
31
32#include "api_consts.h"
33#include "matrix.h"
34
35struct vg_value
36{
37   VGfloat f;
38   VGint   i;
39};
40
41struct vg_state {
42   /* Mode settings */
43   VGMatrixMode matrix_mode;
44   VGFillRule fill_rule;
45   VGImageQuality image_quality;
46   VGRenderingQuality rendering_quality;
47   VGBlendMode blend_mode;
48   VGImageMode image_mode;
49
50   /* Scissoring rectangles */
51   struct vg_value  scissor_rects[32*4];
52   VGint  scissor_rects_num;
53
54   /* Color Transformation */
55   VGboolean color_transform;
56   VGfloat color_transform_values[8];
57
58   /* Stroke parameters */
59   struct {
60      struct vg_value line_width;
61      VGCapStyle cap_style;
62      VGJoinStyle join_style;
63      struct vg_value miter_limit;
64      struct vg_value dash_pattern[VEGA_MAX_DASH_COUNT];
65      VGint   dash_pattern_num;
66      struct vg_value dash_phase;
67      VGboolean dash_phase_reset;
68   } stroke;
69
70   /* Edge fill color for VG_TILE_FILL tiling mode */
71   VGfloat tile_fill_color[4];
72   VGint tile_fill_colori[4];
73
74   /* Color for vgClear */
75   VGfloat clear_color[4];
76   VGint clear_colori[4];
77
78   /* Glyph origin */
79   struct vg_value glyph_origin[2];
80
81   /* Enable/disable alpha masking and scissoring */
82   VGboolean masking;
83   VGboolean scissoring;
84
85   /* Pixel layout information */
86   VGPixelLayout pixel_layout;
87   VGPixelLayout screen_layout;
88
89   /* Source format selection for image filters */
90   VGboolean filter_format_linear;
91   VGboolean filter_format_premultiplied;
92
93   /* Destination write enable mask for image filters */
94   VGbitfield filter_channel_mask;
95
96   struct matrix path_user_to_surface_matrix;
97   struct matrix image_user_to_surface_matrix;
98   struct matrix fill_paint_to_user_matrix;
99   struct matrix stroke_paint_to_user_matrix;
100   struct matrix glyph_user_to_surface_matrix;
101
102   struct vg_paint *stroke_paint;
103   struct vg_paint *fill_paint;
104};
105
106void vg_init_state(struct vg_state *state);
107struct matrix * vg_state_matrix(struct vg_state *state);
108
109#endif
110