api_paint.c revision 3f0a966807f03a364edea0272ddf45f08ab7ce4f 
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/openvg.h"
28
29#include "vg_context.h"
30#include "paint.h"
31#include "api.h"
32#include "handle.h"
33
34
35VGPaint vegaCreatePaint(void)
36{
37   return paint_to_handle(paint_create(vg_current_context()));
38}
39
40void vegaDestroyPaint(VGPaint p)
41{
42   struct vg_context *ctx = vg_current_context();
43
44   if (p == VG_INVALID_HANDLE) {
45      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
46      return;
47   }
48
49   paint_destroy(handle_to_paint(p));
50}
51
52void vegaSetPaint(VGPaint paint, VGbitfield paintModes)
53{
54   struct vg_context *ctx = vg_current_context();
55
56   if (paint == VG_INVALID_HANDLE) {
57      /* restore the default */
58      paint = paint_to_handle(ctx->default_paint);
59   } else if (!vg_object_is_valid(paint, VG_OBJECT_PAINT)) {
60      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
61      return;
62   }
63
64   if (!(paintModes & ((VG_FILL_PATH|VG_STROKE_PATH)))) {
65      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
66      return;
67   }
68
69   if (paintModes & VG_FILL_PATH) {
70      ctx->state.vg.fill_paint = handle_to_paint(paint);
71   }
72   if (paintModes & VG_STROKE_PATH) {
73      ctx->state.vg.stroke_paint = handle_to_paint(paint);
74   }
75
76   ctx->state.dirty |= PAINT_DIRTY;
77}
78
79VGPaint vegaGetPaint(VGPaintMode paintMode)
80{
81   struct vg_context *ctx = vg_current_context();
82   VGPaint paint = VG_INVALID_HANDLE;
83
84   if (paintMode < VG_STROKE_PATH || paintMode > VG_FILL_PATH) {
85      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
86      return VG_INVALID_HANDLE;
87   }
88
89   if (paintMode == VG_FILL_PATH)
90      paint = paint_to_handle(ctx->state.vg.fill_paint);
91   else if (paintMode == VG_STROKE_PATH)
92      paint = paint_to_handle(ctx->state.vg.stroke_paint);
93
94   if (paint == paint_to_handle(ctx->default_paint))
95      paint = VG_INVALID_HANDLE;
96
97   return paint;
98}
99
100void vegaSetColor(VGPaint paint, VGuint rgba)
101{
102   struct vg_context *ctx = vg_current_context();
103   struct vg_paint *p;
104
105   if (paint == VG_INVALID_HANDLE) {
106      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
107      return;
108   }
109
110   if (!vg_object_is_valid(paint, VG_OBJECT_PAINT)) {
111      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
112      return;
113   }
114
115   p = handle_to_paint(paint);
116   paint_set_colori(p, rgba);
117
118   if (ctx->state.vg.fill_paint == p ||
119       ctx->state.vg.stroke_paint == p)
120      ctx->state.dirty |= PAINT_DIRTY;
121}
122
123VGuint vegaGetColor(VGPaint paint)
124{
125   struct vg_context *ctx = vg_current_context();
126   struct vg_paint *p;
127   VGuint rgba = 0;
128
129   if (paint == VG_INVALID_HANDLE) {
130      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
131      return rgba;
132   }
133
134   if (!vg_object_is_valid(paint, VG_OBJECT_PAINT)) {
135      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
136      return rgba;
137   }
138   p = handle_to_paint(paint);
139
140   return paint_colori(p);
141}
142
143void vegaPaintPattern(VGPaint paint, VGImage pattern)
144{
145   struct vg_context *ctx = vg_current_context();
146
147   if (paint == VG_INVALID_HANDLE ||
148       !vg_context_is_object_valid(ctx, VG_OBJECT_PAINT, paint)) {
149      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
150      return;
151   }
152
153   if (pattern == VG_INVALID_HANDLE) {
154      paint_set_type(handle_to_paint(paint), VG_PAINT_TYPE_COLOR);
155      return;
156   }
157
158   if (!vg_context_is_object_valid(ctx, VG_OBJECT_IMAGE, pattern)) {
159      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
160      return;
161   }
162
163
164   if (!vg_object_is_valid(paint, VG_OBJECT_PAINT) ||
165       !vg_object_is_valid(pattern, VG_OBJECT_IMAGE)) {
166      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
167      return;
168   }
169   paint_set_pattern(handle_to_paint(paint),
170                     handle_to_image(pattern));
171}
172
173