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.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27 #include "vg_state.h"
28
29 #include <string.h>
30
vg_init_state(struct vg_state * state)31 void vg_init_state(struct vg_state *state)
32 {
33 state->matrix_mode = VG_MATRIX_PATH_USER_TO_SURFACE;
34 state->fill_rule = VG_EVEN_ODD;
35 state->image_quality = VG_IMAGE_QUALITY_FASTER;
36 state->rendering_quality = VG_RENDERING_QUALITY_BETTER;
37 state->blend_mode = VG_BLEND_SRC_OVER;
38 state->image_mode = VG_DRAW_IMAGE_NORMAL;
39
40 memset(state->scissor_rects, 0, sizeof(state->scissor_rects));
41 state->scissor_rects_num = 0;
42
43 state->color_transform = VG_FALSE;
44 state->color_transform_values[0] = 1.0f;
45 state->color_transform_values[1] = 1.0f;
46 state->color_transform_values[2] = 1.0f;
47 state->color_transform_values[3] = 1.0f;
48 state->color_transform_values[4] = 0.0f;
49 state->color_transform_values[5] = 0.0f;
50 state->color_transform_values[6] = 0.0f;
51 state->color_transform_values[7] = 0.0f;
52
53 /* Stroke parameters */
54 state->stroke.line_width.f = 1.0f;
55 state->stroke.line_width.i = 1;
56 state->stroke.cap_style = VG_CAP_BUTT;
57 state->stroke.join_style = VG_JOIN_MITER;
58 state->stroke.miter_limit.f = 4.0f;
59 state->stroke.miter_limit.i = 4;
60 state->stroke.dash_pattern_num = 0;
61 state->stroke.dash_phase.f = 0.0f;
62 state->stroke.dash_phase.i = 0;
63 state->stroke.dash_phase_reset = VG_FALSE;
64
65 /* Edge fill color for VG_TILE_FILL tiling mode */
66 state->tile_fill_color[0] = 0.0f;
67 state->tile_fill_color[1] = 0.0f;
68 state->tile_fill_color[2] = 0.0f;
69 state->tile_fill_color[3] = 0.0f;
70
71 /* Color for vgClear */
72 state->clear_color[0] = 0.0f;
73 state->clear_color[1] = 0.0f;
74 state->clear_color[2] = 0.0f;
75 state->clear_color[3] = 0.0f;
76
77 /* Glyph origin */
78 state->glyph_origin[0].f = 0.0f;
79 state->glyph_origin[1].f = 0.0f;
80 state->glyph_origin[0].i = 0;
81 state->glyph_origin[1].i = 0;
82
83 /* Enable/disable alpha masking and scissoring */
84 state->masking = VG_FALSE;
85 state->scissoring = VG_FALSE;
86
87 /* Pixel layout information */
88 state->pixel_layout = VG_PIXEL_LAYOUT_UNKNOWN;
89 state->screen_layout = VG_PIXEL_LAYOUT_UNKNOWN;
90
91 /* Source format selection for image filters */
92 state->filter_format_linear = VG_FALSE;
93 state->filter_format_premultiplied = VG_FALSE;
94
95 /* Destination write enable mask for image filters */
96 state->filter_channel_mask = (VG_RED | VG_GREEN | VG_BLUE | VG_ALPHA);
97
98 matrix_load_identity(&state->path_user_to_surface_matrix);
99 matrix_load_identity(&state->image_user_to_surface_matrix);
100 matrix_load_identity(&state->fill_paint_to_user_matrix);
101 matrix_load_identity(&state->stroke_paint_to_user_matrix);
102 matrix_load_identity(&state->glyph_user_to_surface_matrix);
103 }
104
vg_state_matrix(struct vg_state * state)105 struct matrix *vg_state_matrix(struct vg_state *state)
106 {
107 switch(state->matrix_mode) {
108 case VG_MATRIX_PATH_USER_TO_SURFACE:
109 return &state->path_user_to_surface_matrix;
110 case VG_MATRIX_IMAGE_USER_TO_SURFACE:
111 return &state->image_user_to_surface_matrix;
112 case VG_MATRIX_FILL_PAINT_TO_USER:
113 return &state->fill_paint_to_user_matrix;
114 case VG_MATRIX_STROKE_PAINT_TO_USER:
115 return &state->stroke_paint_to_user_matrix;
116 #ifdef OPENVG_VERSION_1_1
117 case VG_MATRIX_GLYPH_USER_TO_SURFACE:
118 return &state->glyph_user_to_surface_matrix;
119 #endif
120 default:
121 break;
122 }
123 return NULL;
124 }
125