api_paint.c 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.
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 "image.h"
32
33VGPaint vgCreatePaint(void)
34{
35   return (VGPaint) paint_create(vg_current_context());
36}
37
38void vgDestroyPaint(VGPaint p)
39{
40   struct vg_context *ctx = vg_current_context();
41   struct vg_paint *paint;
42
43   if (p == VG_INVALID_HANDLE) {
44      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
45      return;
46   }
47
48   paint = (struct vg_paint *)p;
49   paint_destroy(paint);
50}
51
52void vgSetPaint(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 = (VGPaint)ctx->default_paint;
59   } else if (!vg_object_is_valid((void*)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 = (struct vg_paint *)paint;
71   }
72   if (paintModes & VG_STROKE_PATH) {
73      ctx->state.vg.stroke_paint = (struct vg_paint *)paint;
74   }
75}
76
77VGPaint vgGetPaint(VGPaintMode paintMode)
78{
79   struct vg_context *ctx = vg_current_context();
80   VGPaint paint = VG_INVALID_HANDLE;
81
82   if (paintMode < VG_STROKE_PATH || paintMode > VG_FILL_PATH) {
83      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
84      return VG_INVALID_HANDLE;
85   }
86
87   if (paintMode == VG_FILL_PATH)
88      paint = (VGPaint)ctx->state.vg.fill_paint;
89   else if (paintMode == VG_STROKE_PATH)
90      paint = (VGPaint)ctx->state.vg.stroke_paint;
91
92   if (paint == (VGPaint)ctx->default_paint)
93      paint = VG_INVALID_HANDLE;
94
95   return paint;
96}
97
98void vgSetColor(VGPaint paint, VGuint rgba)
99{
100   struct vg_context *ctx = vg_current_context();
101
102   if (paint == VG_INVALID_HANDLE) {
103      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
104      return;
105   }
106
107   if (!vg_object_is_valid((void*)paint, VG_OBJECT_PAINT)) {
108      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
109      return;
110   }
111   {
112      struct vg_paint *p = (struct vg_paint *)paint;
113      paint_set_colori(p, rgba);
114   }
115}
116
117VGuint vgGetColor(VGPaint paint)
118{
119   struct vg_context *ctx = vg_current_context();
120   struct vg_paint *p;
121   VGuint rgba = 0;
122
123   if (paint == VG_INVALID_HANDLE) {
124      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
125      return rgba;
126   }
127
128   if (!vg_object_is_valid((void*)paint, VG_OBJECT_PAINT)) {
129      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
130      return rgba;
131   }
132   p = (struct vg_paint *)paint;
133
134   return paint_colori(p);
135}
136
137void vgPaintPattern(VGPaint paint, VGImage pattern)
138{
139   struct vg_context *ctx = vg_current_context();
140
141   if (paint == VG_INVALID_HANDLE ||
142       !vg_context_is_object_valid(ctx, VG_OBJECT_PAINT, (void *)paint)) {
143      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
144      return;
145   }
146
147   if (pattern == VG_INVALID_HANDLE) {
148      paint_set_type((struct vg_paint*)paint, VG_PAINT_TYPE_COLOR);
149      return;
150   }
151
152   if (!vg_context_is_object_valid(ctx, VG_OBJECT_IMAGE, (void *)pattern)) {
153      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
154      return;
155   }
156
157
158   if (!vg_object_is_valid((void*)paint, VG_OBJECT_PAINT) ||
159       !vg_object_is_valid((void*)pattern, VG_OBJECT_IMAGE)) {
160      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
161      return;
162   }
163   paint_set_pattern((struct vg_paint*)paint,
164                     (struct vg_image*)pattern);
165}
166
167