1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/**************************************************************************
*
* Copyright 2009 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "VG/openvg.h"
#include "vg_context.h"
#include "matrix.h"
void vgLoadIdentity(void)
{
struct vg_context *ctx = vg_current_context();
struct matrix *mat = vg_state_matrix(&ctx->state.vg);
matrix_load_identity(mat);
}
void vgLoadMatrix(const VGfloat * m)
{
struct vg_context *ctx = vg_current_context();
struct matrix *mat;
if (!ctx)
return;
if (!m || !is_aligned(m)) {
vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
return;
}
mat = vg_state_matrix(&ctx->state.vg);
matrix_init(mat, m);
if (!matrix_is_affine(mat)) {
if (ctx->state.vg.matrix_mode != VG_MATRIX_IMAGE_USER_TO_SURFACE) {
matrix_make_affine(mat);
}
}
}
void vgGetMatrix(VGfloat * m)
{
struct vg_context *ctx = vg_current_context();
struct matrix *mat;
if (!ctx)
return;
if (!m || !is_aligned(m)) {
vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
return;
}
mat = vg_state_matrix(&ctx->state.vg);
memcpy(m, mat->m, sizeof(VGfloat)*9);
}
void vgMultMatrix(const VGfloat * m)
{
struct vg_context *ctx = vg_current_context();
struct matrix *dst, src;
if (!ctx)
return;
if (!m || !is_aligned(m)) {
vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
return;
}
matrix_init(&src, m);
dst = vg_state_matrix(&ctx->state.vg);
if (!matrix_is_affine(&src)) {
if (ctx->state.vg.matrix_mode != VG_MATRIX_IMAGE_USER_TO_SURFACE) {
matrix_make_affine(&src);
}
}
matrix_mult(dst, &src);
}
void vgTranslate(VGfloat tx, VGfloat ty)
{
struct vg_context *ctx = vg_current_context();
struct matrix *dst = vg_state_matrix(&ctx->state.vg);
matrix_translate(dst, tx, ty);
}
void vgScale(VGfloat sx, VGfloat sy)
{
struct vg_context *ctx = vg_current_context();
struct matrix *dst = vg_state_matrix(&ctx->state.vg);
matrix_scale(dst, sx, sy);
}
void vgShear(VGfloat shx, VGfloat shy)
{
struct vg_context *ctx = vg_current_context();
struct matrix *dst = vg_state_matrix(&ctx->state.vg);
matrix_shear(dst, shx, shy);
}
void vgRotate(VGfloat angle)
{
struct vg_context *ctx = vg_current_context();
struct matrix *dst = vg_state_matrix(&ctx->state.vg);
matrix_rotate(dst, angle);
}
|
